1242 lines
54 KiB
Python
1242 lines
54 KiB
Python
#!/usr/bin/env python
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import argparse
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import platform
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import logging
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import sys
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import os
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import time
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import datetime
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import serial
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import math
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import struct
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import decimal
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import codecs
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# setup timezone
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os.environ['TZ'] = 'Europe/Berlin'
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logging.basicConfig(
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format='%(asctime)s %(levelname)-8s %(message)s',
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level=logging.INFO,
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datefmt='%Y-%m-%d %H:%M:%S')
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# filename='log.txt')
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# connect and register to dbus
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driver = {
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'name' : "Chargery BMS",
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'servicename' : "chargerybms",
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'instance' : 1,
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'id' : 0x01,
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'version' : 1.2,
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'serial' : "CHGBMS11062020A1",
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'connection' : "com.victronenergy.battery.ttyCHGBMS01"
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}
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parser = argparse.ArgumentParser(description = 'Chargery BMS driver')
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parser.add_argument('--version', action='version', version='%(prog)s v' + str(driver['version']) + ' (' + driver['serial'] + ')')
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parser.add_argument('--debug', action="store_true", help='enable debug logging')
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parser.add_argument('--test', action="store_true", help='test some stored examples network packets')
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parser.add_argument('-o', '--output', help='save data to OUTPUT')
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requiredArguments = parser.add_argument_group('required arguments')
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requiredArguments.add_argument('-d', '--device', help='serial device for data (eg /dev/ttyUSB0)', required=True)
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args = parser.parse_args()
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if args.debug: # switch to debug level
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logger = logging.getLogger()
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logger.setLevel(logging.DEBUG)
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serial_port = serial.Serial(args.device, 115200, timeout=1)
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serial_port.flushInput()
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logging.info(serial_port.name)
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PACKET_HEADER = 0x24
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PACKET_STATUS_CELLS = 0x56
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PACKET_STATUS_BMS = 0x57
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PACKET_STATUS_IMPEDANCES = 0x58
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PACKET_LENGTH_MINIMUM = 10
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PACKET_LENGTH_STATUS_CELLS = [29, 45, 61]
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PACKET_LENGTH_STATUS_BMS = [15]
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# Special handling here: the impedances packet length is dynamically
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# and depends on how many cells are monitored. The minimum length of
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# the network packet with headers, command, length, currentmode1, current1
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# and checksum is 8 bytes. On 6 monitored cells the packet length will
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# be 8+(2*6) = 20 bytes. Therefore, the smallest possible and valid
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# impedances network packet will be 10 bytes
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PACKET_LENGTH_STATUS_IMPEDANCES = 10
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MIN_CELL_VOLTAGE = 1.0
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MIN_CELL_IMPEDANCE = 0.0
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BMS_STATUS = {
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'bms' : {
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'charged_end_voltage' : {
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'value' : -1.000,
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'text' : ""
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},
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'current_mode' : {
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'value' : -1,
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'text' : ""
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},
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'current' : {
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'value' : -1,
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'text' : ""
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},
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'temperature' : {
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'sensor_t1' : {
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'value' : -1.00,
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'text' : ""
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},
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'sensor_t2' : {
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'value' : -1.00,
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'text' : ""
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}
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},
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'soc' : {
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'value' : -1,
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'text' : ""
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},
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'timestamp' : {
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'value' : -1,
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'text' : ""
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}
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},
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'voltages' : {
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'cell01_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell02_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell03_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell04_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell05_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell06_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell07_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell08_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell09_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell10_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell11_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell12_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell13_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell14_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell15_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell16_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell17_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell18_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell19_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell20_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell21_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell22_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell23_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'cell24_voltage' : {
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'value' : -1,
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'text' : ""
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},
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'agg_voltages' : {
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'sum' : {
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'value' : -1,
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'text' : ""
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},
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'max' : {
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'value' : -1,
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'text' : ""
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},
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'min' : {
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'value' : -1,
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'text' : ""
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},
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'diff' : {
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'value' : -1,
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'text' : ""
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}
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},
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'battery_capacity_wh' : {
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'value' : -1,
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'text' : ""
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},
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'battery_capacity_ah' : {
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'value' : -1,
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'text' : ""
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},
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'timestamp' : {
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'value' : -1,
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'text' : ""
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}
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},
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'impedances' : {
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'current_mode1' : {
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'value' : -1,
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'text' : ""
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},
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'current1' : {
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'value' : -1,
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'text' : ""
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},
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'cell01_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell02_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell03_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell04_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell05_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell06_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell07_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell08_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell09_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell10_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell11_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell12_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell13_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell14_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell15_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell16_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell17_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell18_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell19_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell20_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell21_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell22_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell23_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'cell24_impedance' : {
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'value' : -1,
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'text' : ""
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},
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'agg_impedances' : {
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'sum' : {
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'value' : -1,
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'text' : ""
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},
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'max' : {
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'value' : -1,
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'text' : ""
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},
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'min' : {
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'value' : -1,
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'text' : ""
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},
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'diff' : {
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'value' : -1,
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'text' : ""
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}
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},
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'battery_capacity_wh' : {
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'value' : -1,
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'text' : ""
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},
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'battery_capacity_ah' : {
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'value' : -1,
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'text' : ""
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},
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'timestamp' : {
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'value' : -1,
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'text' : ""
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}
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}
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}
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# example network packets form the chargery community protocol manual v1.25
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BMS_TEST_PACKETS = {
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1 : bytearray.fromhex('2424570F0E240100E6008100845B27'),
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2 : bytearray.fromhex('2424570F0E240100E4008100845B25'),
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3 : bytearray.fromhex('2424570F0E240100E1008300845B24'),
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4 : bytearray.fromhex('2424562D0CFD0D040D040D020D030D040D060D010D080D020D050CFE0D060CFB0D0F0CFC76FED50263140E0095'),
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5 : bytearray.fromhex('2424582801E4000100030003000300020003000000000001000100010000000500020003000300CC'),
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6 : bytearray.fromhex('2424570F0E240100E4008300845B27'),
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7 : bytearray.fromhex('24245814012a000900040007000b000b00070010')
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}
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# define special unicode characters here
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SPECIAL_DISPLAY_SYMBOLS = {
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'degree' : u'\u00b0',
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'ohm' : u'\u03A9'
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}
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def dfs_bms_status (f, bms_status, prefix=""):
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import functools, operator
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if "value" in bms_status:
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return [f(prefix, bms_status)]
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else:
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return functools.reduce(operator.add,
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[dfs_bms_status(f, bms_status[sub_dict], (prefix+"." if len(prefix)>0 else "") + sub_dict) for sub_dict in sorted(bms_status.keys())],
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[])
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def print_status_header (prefix, bms_status_leaf):
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return prefix
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def print_status_value (prefix, bms_status_leaf):
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return bms_status_leaf["value"]
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def reset_status_values():
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BMS_STATUS['bms']['charged_end_voltage']['value'] = -1
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BMS_STATUS['bms']['charged_end_voltage']['text'] = ""
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BMS_STATUS['bms']['current_mode']['value'] = -1
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BMS_STATUS['bms']['current_mode']['text'] = ""
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BMS_STATUS['bms']['current']['value'] = -1
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BMS_STATUS['bms']['current']['text'] = ""
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BMS_STATUS['bms']['temperature']['sensor_t1']['value'] = -1
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BMS_STATUS['bms']['temperature']['sensor_t1']['text'] = ""
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BMS_STATUS['bms']['temperature']['sensor_t2']['value'] = -1
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BMS_STATUS['bms']['temperature']['sensor_t2']['text'] = ""
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BMS_STATUS['bms']['soc']['value'] = -1
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BMS_STATUS['bms']['soc']['text'] = ""
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BMS_STATUS['bms']['timestamp']['value'] = -1
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BMS_STATUS['bms']['timestamp']['text'] = ""
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def reset_impedances_values():
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BMS_STATUS['impedances']['current_mode1']['value'] = -1
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BMS_STATUS['impedances']['current_mode1']['text'] = ""
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BMS_STATUS['impedances']['current1']['value'] = -1
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BMS_STATUS['impedances']['current1']['text'] = ""
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BMS_STATUS['impedances']['cell01_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell01_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell02_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell02_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell03_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell03_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell04_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell04_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell05_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell05_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell06_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell06_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell07_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell07_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell08_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell08_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell09_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell09_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell10_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell10_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell11_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell11_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell12_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell12_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell13_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell13_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell14_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell14_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell15_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell15_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell16_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell16_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell17_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell17_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell18_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell18_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell19_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell19_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell20_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell20_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell21_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell21_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell22_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell22_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell23_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell23_impedance']['text'] = ""
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BMS_STATUS['impedances']['cell24_impedance']['value'] = -1
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BMS_STATUS['impedances']['cell24_impedance']['text'] = ""
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BMS_STATUS['impedances']['agg_impedances']['sum']['value'] = -1
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BMS_STATUS['impedances']['agg_impedances']['sum']['text'] = ""
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BMS_STATUS['impedances']['agg_impedances']['max']['value'] = -1
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BMS_STATUS['impedances']['agg_impedances']['max']['text'] = ""
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BMS_STATUS['impedances']['agg_impedances']['min']['value'] = -1
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BMS_STATUS['impedances']['agg_impedances']['min']['text'] = ""
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BMS_STATUS['impedances']['agg_impedances']['diff']['value'] = -1
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BMS_STATUS['impedances']['agg_impedances']['diff']['text'] = ""
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BMS_STATUS['impedances']['battery_capacity_wh']['value'] = -1
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BMS_STATUS['impedances']['battery_capacity_wh']['text'] = ""
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BMS_STATUS['impedances']['battery_capacity_ah']['value'] = -1
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BMS_STATUS['impedances']['battery_capacity_ah']['text'] = ""
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BMS_STATUS['impedances']['timestamp']['value'] = -1
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BMS_STATUS['impedances']['timestamp']['text'] = ""
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|
|
def reset_voltages_values():
|
|
BMS_STATUS['voltages']['cell01_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell01_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell02_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell02_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell03_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell03_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell04_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell04_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell05_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell05_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell06_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell06_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell07_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell07_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell08_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell08_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell09_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell09_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell10_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell10_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell11_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell11_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell12_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell12_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell13_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell13_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell14_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell14_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell15_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell15_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell16_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell16_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell17_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell17_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell18_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell18_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell19_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell19_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell20_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell20_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell21_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell21_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell22_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell22_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell23_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell23_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['cell24_voltage']['value'] = -1
|
|
BMS_STATUS['voltages']['cell24_voltage']['text'] = ""
|
|
BMS_STATUS['voltages']['agg_voltages']['sum']['value'] = -1
|
|
BMS_STATUS['voltages']['agg_voltages']['sum']['text'] = ""
|
|
BMS_STATUS['voltages']['agg_voltages']['max']['value'] = -1
|
|
BMS_STATUS['voltages']['agg_voltages']['max']['text'] = ""
|
|
BMS_STATUS['voltages']['agg_voltages']['min']['value'] = -1
|
|
BMS_STATUS['voltages']['agg_voltages']['min']['text'] = ""
|
|
BMS_STATUS['voltages']['agg_voltages']['diff']['value'] = -1
|
|
BMS_STATUS['voltages']['agg_voltages']['diff']['text'] = ""
|
|
BMS_STATUS['voltages']['battery_capacity_wh']['value'] = -1
|
|
BMS_STATUS['voltages']['battery_capacity_wh']['text'] = ""
|
|
BMS_STATUS['voltages']['battery_capacity_ah']['value'] = -1
|
|
BMS_STATUS['voltages']['battery_capacity_ah']['text'] = ""
|
|
BMS_STATUS['voltages']['timestamp']['value'] = -1
|
|
BMS_STATUS['voltages']['timestamp']['text'] = ""
|
|
|
|
|
|
def debug_packet(packet):
|
|
|
|
string_output = ""
|
|
for packet_byte in packet:
|
|
# print(packet_byte)
|
|
byte_string = str((packet_byte)) + " [" + hex(packet_byte) + "] "
|
|
string_output = string_output + byte_string
|
|
logging.debug(string_output);
|
|
|
|
|
|
def get_header_position(packet):
|
|
|
|
# detect header position
|
|
previous_packet_byte = "0"
|
|
pos_iterator = -1
|
|
for packet_byte in packet:
|
|
pos_iterator += 1
|
|
if (((previous_packet_byte) == PACKET_HEADER) and ((packet_byte) == PACKET_HEADER)):
|
|
break
|
|
previous_packet_byte = packet_byte
|
|
|
|
return pos_iterator
|
|
|
|
|
|
def get_voltage_value(byte1, byte2):
|
|
return float((float(byte1 * 256) + float(byte2)) / 1000)
|
|
|
|
|
|
def get_current_value(byte1, byte2):
|
|
return float((float(byte1 * 256) + float(byte2)) / 10)
|
|
|
|
|
|
def get_current1_value(byte1, byte2):
|
|
return float((float(byte1) + float(byte2 * 256)) / 10)
|
|
|
|
|
|
def get_temperature_value(byte1, byte2):
|
|
return float((float(byte1 * 256) + float(byte2)) / 10)
|
|
|
|
|
|
def get_battery_capacity(byte1, byte2, byte3, byte4):
|
|
return float((float(byte1) + float(byte2 * 256) + float(byte3 * 256 * 256) + float(byte4 * 256 * 256 * 256)) / 1000)
|
|
|
|
|
|
def get_cell_impedance(byte1, byte2):
|
|
return float((float(byte1) + float(byte2 * 256)) / 10)
|
|
|
|
|
|
|
|
def parse_packet(packet):
|
|
logging.debug("Parse Packet [" + str(len(packet)) + "] bytes")
|
|
debug_packet(packet)
|
|
|
|
while (len(packet) >= PACKET_LENGTH_MINIMUM):
|
|
header_position = get_header_position(packet)
|
|
|
|
# now parse the packet
|
|
if ((header_position == -1) or (header_position == len(packet) - 1)):
|
|
logging.debug("Packet Invalid")
|
|
packet = ""
|
|
else:
|
|
# strip packet
|
|
packet = packet[(header_position - 1):]
|
|
|
|
if (len(packet) >= 4):
|
|
if (((packet[0]) == PACKET_HEADER) and ((packet[1]) == PACKET_HEADER)):
|
|
packet_length = (packet[3])
|
|
logging.debug("Packet Length [" + str (packet_length) + " bytes]")
|
|
debug_packet(packet)
|
|
|
|
if ((packet[2]) == PACKET_STATUS_BMS):
|
|
|
|
if (len(packet) < PACKET_LENGTH_STATUS_BMS[0]):
|
|
logging.debug("Packet Status BMS too short, skip")
|
|
packet = ""
|
|
else:
|
|
# delete old data
|
|
reset_status_values()
|
|
|
|
# checksum value
|
|
checksum = (packet[packet_length-1])
|
|
checksum_check = 0
|
|
|
|
# calculate checksum
|
|
for i in range(packet_length-1):
|
|
checksum_check = checksum_check + (packet[i])
|
|
checksum_check = checksum_check % 256
|
|
logging.debug("Packet Checksum : " + str(checksum) + "|" + str(checksum_check))
|
|
|
|
# data integrity does match
|
|
if (checksum == checksum_check):
|
|
|
|
# charge end voltage
|
|
BMS_STATUS['bms']['charged_end_voltage']['value'] = get_voltage_value((packet[4]), (packet[5]))
|
|
BMS_STATUS['bms']['charged_end_voltage']['text'] = "{:.2f}".format(BMS_STATUS['bms']['charged_end_voltage']['value']) + "V"
|
|
|
|
# actual current
|
|
BMS_STATUS['bms']['current']['value'] = get_current_value((packet[7]), (packet[8]))
|
|
|
|
# charge mode
|
|
bms_current_mode = (packet[6])
|
|
if (bms_current_mode == 0x00):
|
|
BMS_STATUS['bms']['current_mode']['value'] = 0
|
|
BMS_STATUS['bms']['current_mode']['text'] = "Discharge"
|
|
BMS_STATUS['bms']['current']['text'] = "-" + str(BMS_STATUS['bms']['current']['value']) + "A"
|
|
elif (bms_current_mode == 0x01):
|
|
BMS_STATUS['bms']['current_mode']['value'] = 1
|
|
BMS_STATUS['bms']['current_mode']['text'] = "Charge"
|
|
BMS_STATUS['bms']['current']['text'] = str(BMS_STATUS['bms']['current']['value']) + "A"
|
|
elif (bms_current_mode == 0x02):
|
|
BMS_STATUS['bms']['current_mode']['value'] = 2
|
|
BMS_STATUS['bms']['current_mode']['text'] = "Storage"
|
|
BMS_STATUS['bms']['current']['text'] = str(BMS_STATUS['bms']['current']['value']) + "A"
|
|
else:
|
|
BMS_STATUS['bms']['current_mode']['value'] = -1
|
|
BMS_STATUS['bms']['current_mode']['text'] = ""
|
|
BMS_STATUS['bms']['current']['text'] = ""
|
|
|
|
# current temperatures
|
|
BMS_STATUS['bms']['temperature']['sensor_t1']['value'] = get_temperature_value((packet[9]), (packet[10]))
|
|
BMS_STATUS['bms']['temperature']['sensor_t1']['text'] = str(BMS_STATUS['bms']['temperature']['sensor_t1']['value']) + SPECIAL_DISPLAY_SYMBOLS['degree'] + "C"
|
|
BMS_STATUS['bms']['temperature']['sensor_t2']['value'] = get_temperature_value((packet[11]), (packet[12]))
|
|
BMS_STATUS['bms']['temperature']['sensor_t2']['text'] = str(BMS_STATUS['bms']['temperature']['sensor_t2']['value']) + SPECIAL_DISPLAY_SYMBOLS['degree'] + "C"
|
|
|
|
# soc value
|
|
BMS_STATUS['bms']['soc']['value'] = (packet[13])
|
|
BMS_STATUS['bms']['soc']['text'] = str((packet[13])) + "%"
|
|
|
|
# update timestamp
|
|
current_date = datetime.datetime.now()
|
|
BMS_STATUS['bms']['timestamp']['value'] = time.time()
|
|
BMS_STATUS['bms']['timestamp']['text'] = current_date.strftime('%a %d.%m.%Y %H:%M:%S')
|
|
|
|
|
|
# print (BMS_STATUS)
|
|
logging.info("BMS Status [SOC|" + BMS_STATUS['bms']['soc']['text'] +
|
|
"][MODE|" + BMS_STATUS['bms']['current_mode']['text'] +
|
|
"][CURRENT|" + BMS_STATUS['bms']['current']['text'] +
|
|
"][T1|" + BMS_STATUS['bms']['temperature']['sensor_t1']['text'] +
|
|
"][T2|" + BMS_STATUS['bms']['temperature']['sensor_t1']['text'] +
|
|
"][MAX CHARGE VOLTAGE|" + BMS_STATUS['bms']['charged_end_voltage']['text'] + "]")
|
|
|
|
else:
|
|
logging.info("Packet Checksum wrong, skip packet")
|
|
|
|
# strip packet
|
|
packet = packet[packet_length:]
|
|
|
|
elif ((packet[2]) == PACKET_STATUS_CELLS):
|
|
|
|
if (len(packet) < PACKET_LENGTH_STATUS_CELLS[0]):
|
|
logging.debug("Packet Status Cells too short, skip")
|
|
packet = ""
|
|
else:
|
|
# delete old data
|
|
reset_voltages_values()
|
|
|
|
# checksum value
|
|
checksum = -1
|
|
checksum_check = 0
|
|
|
|
if (packet_length == PACKET_LENGTH_STATUS_CELLS[0]): # packet from BMS8
|
|
logging.debug("Packet Status Cells BMS8")
|
|
|
|
if (len(packet) < PACKET_LENGTH_STATUS_CELLS[0]):
|
|
logging.debug("Packet Status Cells too short, skip")
|
|
packet = ""
|
|
else:
|
|
checksum = (packet[packet_length-1])
|
|
|
|
# calculate checksum
|
|
for i in range(packet_length-1):
|
|
checksum_check = checksum_check + (packet[i])
|
|
checksum_check = checksum_check % 256
|
|
logging.debug("Packet Checksum BMS8: " + str(checksum) + "|" + str(checksum_check))
|
|
|
|
elif (packet_length == PACKET_LENGTH_STATUS_CELLS[1]): # packet from BMS16
|
|
logging.debug("Packet Status Cells BMS16")
|
|
|
|
if (len(packet) < PACKET_LENGTH_STATUS_CELLS[1]):
|
|
logging.debug("Packet Status Cells too short, skip")
|
|
packet = ""
|
|
else:
|
|
checksum = (packet[packet_length-1])
|
|
|
|
# calculate checksum
|
|
for i in range(packet_length-1):
|
|
checksum_check = checksum_check + (packet[i])
|
|
checksum_check = checksum_check % 256
|
|
logging.debug("Packet Checksum BMS16: " + str(checksum) + "|" + str(checksum_check))
|
|
|
|
elif (packet_length == PACKET_LENGTH_STATUS_CELLS[2]): # packet from BMS24
|
|
logging.debug("Packet Status Cells BMS24")
|
|
|
|
if (len(packet) < PACKET_LENGTH_STATUS_CELLS[2]):
|
|
logging.debug("Packet Status Cells too short, skip")
|
|
packet = ""
|
|
else:
|
|
checksum = (packet[packet_length-1])
|
|
|
|
# calculate checksum
|
|
for i in range(packet_length-1):
|
|
checksum_check = checksum_check + (packet[i])
|
|
checksum_check = checksum_check % 256
|
|
logging.debug("Packet Checksum BMS24: " + str(checksum) + "|" + str(checksum_check))
|
|
|
|
|
|
# data integrity does match
|
|
if (checksum == checksum_check):
|
|
|
|
|
|
# cell voltages BMS8
|
|
BMS_STATUS['voltages']['cell01_voltage']['value'] = get_voltage_value((packet[4]), (packet[5]))
|
|
BMS_STATUS['voltages']['cell01_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell01_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell02_voltage']['value'] = get_voltage_value((packet[6]), (packet[7]))
|
|
BMS_STATUS['voltages']['cell02_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell02_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell03_voltage']['value'] = get_voltage_value((packet[8]), (packet[9]))
|
|
BMS_STATUS['voltages']['cell03_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell03_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell04_voltage']['value'] = get_voltage_value((packet[10]), (packet[11]))
|
|
BMS_STATUS['voltages']['cell04_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell04_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell05_voltage']['value'] = get_voltage_value((packet[12]), (packet[13]))
|
|
BMS_STATUS['voltages']['cell05_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell05_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell06_voltage']['value'] = get_voltage_value((packet[14]), (packet[15]))
|
|
BMS_STATUS['voltages']['cell06_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell06_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell07_voltage']['value'] = get_voltage_value((packet[16]), (packet[17]))
|
|
BMS_STATUS['voltages']['cell07_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell07_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell08_voltage']['value'] = get_voltage_value((packet[18]), (packet[19]))
|
|
BMS_STATUS['voltages']['cell08_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell08_voltage']['value']) + "V"
|
|
|
|
if (packet_length == PACKET_LENGTH_STATUS_CELLS[1]): # packet from BMS16
|
|
|
|
BMS_STATUS['voltages']['cell09_voltage']['value'] = get_voltage_value((packet[20]), (packet[21]))
|
|
BMS_STATUS['voltages']['cell09_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell09_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell10_voltage']['value'] = get_voltage_value((packet[22]), (packet[23]))
|
|
BMS_STATUS['voltages']['cell10_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell10_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell11_voltage']['value'] = get_voltage_value((packet[24]), (packet[25]))
|
|
BMS_STATUS['voltages']['cell11_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell11_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell12_voltage']['value'] = get_voltage_value((packet[26]), (packet[27]))
|
|
BMS_STATUS['voltages']['cell12_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell12_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell13_voltage']['value'] = get_voltage_value((packet[28]), (packet[29]))
|
|
BMS_STATUS['voltages']['cell13_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell13_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell14_voltage']['value'] = get_voltage_value((packet[30]), (packet[31]))
|
|
BMS_STATUS['voltages']['cell14_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell14_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell15_voltage']['value'] = get_voltage_value((packet[32]), (packet[33]))
|
|
BMS_STATUS['voltages']['cell15_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell15_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell16_voltage']['value'] = get_voltage_value((packet[34]), (packet[35]))
|
|
BMS_STATUS['voltages']['cell16_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell16_voltage']['value']) + "V"
|
|
|
|
|
|
if (packet_length == PACKET_LENGTH_STATUS_CELLS[2]): # packet from BMS24
|
|
|
|
BMS_STATUS['voltages']['cell17_voltage']['value'] = get_voltage_value((packet[36]), (packet[37]))
|
|
BMS_STATUS['voltages']['cell17_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell17_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell18_voltage']['value'] = get_voltage_value((packet[38]), (packet[39]))
|
|
BMS_STATUS['voltages']['cell18_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell18_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell19_voltage']['value'] = get_voltage_value((packet[40]), (packet[41]))
|
|
BMS_STATUS['voltages']['cell19_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell19_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell20_voltage']['value'] = get_voltage_value((packet[42]), (packet[43]))
|
|
BMS_STATUS['voltages']['cell20_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell20_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell21_voltage']['value'] = get_voltage_value((packet[44]), (packet[45]))
|
|
BMS_STATUS['voltages']['cell21_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell21_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell22_voltage']['value'] = get_voltage_value((packet[46]), (packet[47]))
|
|
BMS_STATUS['voltages']['cell22_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell22_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell23_voltage']['value'] = get_voltage_value((packet[48]), (packet[49]))
|
|
BMS_STATUS['voltages']['cell23_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell23_voltage']['value']) + "V"
|
|
|
|
BMS_STATUS['voltages']['cell24_voltage']['value'] = get_voltage_value((packet[50]), (packet[51]))
|
|
BMS_STATUS['voltages']['cell24_voltage']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['cell24_voltage']['value']) + "V"
|
|
|
|
|
|
|
|
# get min/max voltages to calculate the diff
|
|
cell_voltages = []
|
|
|
|
if (BMS_STATUS['voltages']['cell01_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell01_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell02_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell02_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell03_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell03_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell04_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell04_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell05_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell05_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell06_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell06_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell07_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell07_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell08_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell08_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell09_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell09_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell10_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell10_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell11_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell11_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell12_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell12_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell13_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell13_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell14_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell14_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell15_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell15_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell16_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell16_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell17_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell17_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell18_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell18_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell19_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell19_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell20_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell20_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell21_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell21_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell22_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell22_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell23_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell23_voltage']['value'])
|
|
if (BMS_STATUS['voltages']['cell24_voltage']['value'] >= MIN_CELL_VOLTAGE):
|
|
cell_voltages.append(BMS_STATUS['voltages']['cell24_voltage']['value'])
|
|
|
|
BMS_STATUS['voltages']['agg_voltages']['sum']['value'] = sum(cell_voltages)
|
|
BMS_STATUS['voltages']['agg_voltages']['sum']['text'] = "{:.2f}".format(BMS_STATUS['voltages']['agg_voltages']['sum']['value']) + "V"
|
|
BMS_STATUS['voltages']['agg_voltages']['max']['value'] = max(cell_voltages)
|
|
BMS_STATUS['voltages']['agg_voltages']['max']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['agg_voltages']['max']['value']) + "V"
|
|
BMS_STATUS['voltages']['agg_voltages']['min']['value'] = min(cell_voltages)
|
|
BMS_STATUS['voltages']['agg_voltages']['min']['text'] = "{:.3f}".format(BMS_STATUS['voltages']['agg_voltages']['min']['value']) + "V"
|
|
BMS_STATUS['voltages']['agg_voltages']['diff']['value'] = BMS_STATUS['voltages']['agg_voltages']['max']['value'] - BMS_STATUS['voltages']['agg_voltages']['min']['value']
|
|
BMS_STATUS['voltages']['agg_voltages']['diff']['text'] = "{:.0f}".format(BMS_STATUS['voltages']['agg_voltages']['diff']['value'] * 1000) + "mV"
|
|
|
|
|
|
if (packet_length == PACKET_LENGTH_STATUS_CELLS[0]): # packet from BMS8
|
|
|
|
# get battery capacity
|
|
BMS_STATUS['voltages']['battery_capacity_wh']['value'] = get_battery_capacity((packet[20]), (packet[21]), (packet[22]), (packet[23]))
|
|
BMS_STATUS['voltages']['battery_capacity_wh']['text'] = "{:.0f}".format(BMS_STATUS['voltages']['battery_capacity_wh']['value']) + "Wh"
|
|
|
|
BMS_STATUS['voltages']['battery_capacity_ah']['value'] = get_battery_capacity((packet[24]), (packet[25]), (packet[26]), (packet[27]))
|
|
BMS_STATUS['voltages']['battery_capacity_ah']['text'] = "{:.0f}".format(BMS_STATUS['voltages']['battery_capacity_ah']['value']) + "Ah"
|
|
|
|
|
|
elif (packet_length == PACKET_LENGTH_STATUS_CELLS[1]): # packet from BMS16
|
|
|
|
# get battery capacity
|
|
BMS_STATUS['voltages']['battery_capacity_wh']['value'] = get_battery_capacity((packet[36]), (packet[37]), (packet[38]), (packet[39]))
|
|
BMS_STATUS['voltages']['battery_capacity_wh']['text'] = "{:.0f}".format(BMS_STATUS['voltages']['battery_capacity_wh']['value']) + "Wh"
|
|
|
|
BMS_STATUS['voltages']['battery_capacity_ah']['value'] = get_battery_capacity((packet[40]), (packet[41]), (packet[42]), (packet[43]))
|
|
BMS_STATUS['voltages']['battery_capacity_ah']['text'] = "{:.0f}".format(BMS_STATUS['voltages']['battery_capacity_ah']['value']) + "Ah"
|
|
|
|
|
|
elif (packet_length == PACKET_LENGTH_STATUS_CELLS[2]): # packet from BMS24
|
|
|
|
# get battery capacity
|
|
BMS_STATUS['voltages']['battery_capacity_wh']['value'] = get_battery_capacity((packet[52]), (packet[53]), (packet[54]), (packet[55]))
|
|
BMS_STATUS['voltages']['battery_capacity_wh']['text'] = "{:.0f}".format(BMS_STATUS['voltages']['battery_capacity_wh']['value']) + "Wh"
|
|
|
|
BMS_STATUS['voltages']['battery_capacity_ah']['value'] = get_battery_capacity((packet[56]), (packet[57]), (packet[58]), (packet[59]))
|
|
BMS_STATUS['voltages']['battery_capacity_ah']['text'] = "{:.0f}".format(BMS_STATUS['voltages']['battery_capacity_ah']['value']) + "Ah"
|
|
|
|
|
|
|
|
# update timestamp
|
|
current_date = datetime.datetime.now()
|
|
BMS_STATUS['voltages']['timestamp']['value'] = time.time()
|
|
BMS_STATUS['voltages']['timestamp']['text'] = current_date.strftime('%a %d.%m.%Y %H:%M:%S')
|
|
|
|
|
|
# print (BMS_STATUS)
|
|
if (packet_length == PACKET_LENGTH_STATUS_CELLS[0]): # packet from BMS8
|
|
|
|
logging.info("BMS Voltages " +
|
|
"[CAPACITYAH|" + BMS_STATUS['voltages']['battery_capacity_ah']['text'] +
|
|
"][CAPACITYWH|" + BMS_STATUS['voltages']['battery_capacity_wh']['text'] +
|
|
"][DIFF|" + BMS_STATUS['voltages']['agg_voltages']['diff']['text'] +
|
|
"][SUM|" + BMS_STATUS['voltages']['agg_voltages']['sum']['text'] +
|
|
"][#1|" + BMS_STATUS['voltages']['cell01_voltage']['text'] +
|
|
"][#2|" + BMS_STATUS['voltages']['cell02_voltage']['text'] +
|
|
"][#3|" + BMS_STATUS['voltages']['cell03_voltage']['text'] +
|
|
"][#4|" + BMS_STATUS['voltages']['cell04_voltage']['text'] +
|
|
"][#5|" + BMS_STATUS['voltages']['cell05_voltage']['text'] +
|
|
"][#6|" + BMS_STATUS['voltages']['cell06_voltage']['text'] +
|
|
"][#7|" + BMS_STATUS['voltages']['cell07_voltage']['text'] +
|
|
"][#8|" + BMS_STATUS['voltages']['cell08_voltage']['text'] + "]")
|
|
|
|
elif (packet_length == PACKET_LENGTH_STATUS_CELLS[1]): # packet from BMS16
|
|
|
|
logging.info("BMS Voltages " +
|
|
"[CAPACITYAH|" + BMS_STATUS['voltages']['battery_capacity_ah']['text'] +
|
|
"][CAPACITYWH|" + BMS_STATUS['voltages']['battery_capacity_wh']['text'] +
|
|
"][DIFF|" + BMS_STATUS['voltages']['agg_voltages']['diff']['text'] +
|
|
"][SUM|" + BMS_STATUS['voltages']['agg_voltages']['sum']['text'] +
|
|
"][#1|" + BMS_STATUS['voltages']['cell01_voltage']['text'] +
|
|
"][#2|" + BMS_STATUS['voltages']['cell02_voltage']['text'] +
|
|
"][#3|" + BMS_STATUS['voltages']['cell03_voltage']['text'] +
|
|
"][#4|" + BMS_STATUS['voltages']['cell04_voltage']['text'] +
|
|
"][#5|" + BMS_STATUS['voltages']['cell05_voltage']['text'] +
|
|
"][#6|" + BMS_STATUS['voltages']['cell06_voltage']['text'] +
|
|
"][#7|" + BMS_STATUS['voltages']['cell07_voltage']['text'] +
|
|
"][#8|" + BMS_STATUS['voltages']['cell08_voltage']['text'] +
|
|
"][#9|" + BMS_STATUS['voltages']['cell09_voltage']['text'] +
|
|
"][#10|" + BMS_STATUS['voltages']['cell10_voltage']['text'] +
|
|
"][#11|" + BMS_STATUS['voltages']['cell11_voltage']['text'] +
|
|
"][#12|" + BMS_STATUS['voltages']['cell12_voltage']['text'] +
|
|
"][#13|" + BMS_STATUS['voltages']['cell13_voltage']['text'] +
|
|
"][#14|" + BMS_STATUS['voltages']['cell14_voltage']['text'] +
|
|
"][#15|" + BMS_STATUS['voltages']['cell15_voltage']['text'] +
|
|
"][#16|" + BMS_STATUS['voltages']['cell16_voltage']['text'] + "]")
|
|
|
|
|
|
elif (packet_length == PACKET_LENGTH_STATUS_CELLS[2]): # packet from BMS24
|
|
|
|
logging.info("BMS Voltages " +
|
|
"[CAPACITYAH|" + BMS_STATUS['voltages']['battery_capacity_ah']['text'] +
|
|
"][CAPACITYWH|" + BMS_STATUS['voltages']['battery_capacity_wh']['text'] +
|
|
"][DIFF|" + BMS_STATUS['voltages']['agg_voltages']['diff']['text'] +
|
|
"][SUM|" + BMS_STATUS['voltages']['agg_voltages']['sum']['text'] +
|
|
"][#1|" + BMS_STATUS['voltages']['cell01_voltage']['text'] +
|
|
"][#2|" + BMS_STATUS['voltages']['cell02_voltage']['text'] +
|
|
"][#3|" + BMS_STATUS['voltages']['cell03_voltage']['text'] +
|
|
"][#4|" + BMS_STATUS['voltages']['cell04_voltage']['text'] +
|
|
"][#5|" + BMS_STATUS['voltages']['cell05_voltage']['text'] +
|
|
"][#6|" + BMS_STATUS['voltages']['cell06_voltage']['text'] +
|
|
"][#7|" + BMS_STATUS['voltages']['cell07_voltage']['text'] +
|
|
"][#8|" + BMS_STATUS['voltages']['cell08_voltage']['text'] +
|
|
"][#9|" + BMS_STATUS['voltages']['cell09_voltage']['text'] +
|
|
"][#10|" + BMS_STATUS['voltages']['cell10_voltage']['text'] +
|
|
"][#11|" + BMS_STATUS['voltages']['cell11_voltage']['text'] +
|
|
"][#12|" + BMS_STATUS['voltages']['cell12_voltage']['text'] +
|
|
"][#13|" + BMS_STATUS['voltages']['cell13_voltage']['text'] +
|
|
"][#14|" + BMS_STATUS['voltages']['cell14_voltage']['text'] +
|
|
"][#15|" + BMS_STATUS['voltages']['cell15_voltage']['text'] +
|
|
"][#16|" + BMS_STATUS['voltages']['cell16_voltage']['text'] +
|
|
"][#17|" + BMS_STATUS['voltages']['cell17_voltage']['text'] +
|
|
"][#18|" + BMS_STATUS['voltages']['cell18_voltage']['text'] +
|
|
"][#19|" + BMS_STATUS['voltages']['cell19_voltage']['text'] +
|
|
"][#20|" + BMS_STATUS['voltages']['cell20_voltage']['text'] +
|
|
"][#21|" + BMS_STATUS['voltages']['cell21_voltage']['text'] +
|
|
"][#22|" + BMS_STATUS['voltages']['cell22_voltage']['text'] +
|
|
"][#23|" + BMS_STATUS['voltages']['cell23_voltage']['text'] +
|
|
"][#24|" + BMS_STATUS['voltages']['cell24_voltage']['text'] + "]")
|
|
|
|
else:
|
|
logging.debug("Packet Checksum wrong, skip packet")
|
|
|
|
# strip packet
|
|
packet = packet[packet_length:]
|
|
|
|
elif ((packet[2]) == PACKET_STATUS_IMPEDANCES):
|
|
|
|
if (len(packet) < PACKET_LENGTH_STATUS_IMPEDANCES):
|
|
logging.debug("Packet Impedances Cells too short, skip")
|
|
packet = ""
|
|
else:
|
|
# delete old data
|
|
reset_impedances_values()
|
|
|
|
cell_count = (packet_length - 8) // 2;
|
|
logging.debug("Packet Impedances, detected cells: #" + str(cell_count))
|
|
|
|
# checksum value
|
|
checksum = (packet[packet_length-1])
|
|
checksum_check = 0
|
|
|
|
# calculate checksum
|
|
for i in range(packet_length-1):
|
|
checksum_check = checksum_check + (packet[i])
|
|
checksum_check = checksum_check % 256
|
|
logging.debug("Packet Checksum BMS: " + str(checksum) + "|" + str(checksum_check))
|
|
|
|
|
|
# data integrity does match
|
|
if (checksum == checksum_check):
|
|
|
|
# Chargery protocol manual:
|
|
# Current 1 (A), It is instant current when measure cell impedance
|
|
BMS_STATUS['impedances']['current1']['value'] = get_current1_value((packet[5]), (packet[6]))
|
|
|
|
# Chargery protocol manual:
|
|
# Current mode 1 means battery is in charging or discharging when cell impedance is measured
|
|
bms_current_mode1 = (packet[4])
|
|
if (bms_current_mode1 == 0x00):
|
|
BMS_STATUS['impedances']['current_mode1']['value'] = 0
|
|
BMS_STATUS['impedances']['current_mode1']['text'] = "Discharge"
|
|
BMS_STATUS['impedances']['current1']['text'] = "-" + str(BMS_STATUS['impedances']['current1']['value']) + "A"
|
|
elif (bms_current_mode1 == 0x01):
|
|
BMS_STATUS['impedances']['current_mode1']['value'] = 1
|
|
BMS_STATUS['impedances']['current_mode1']['text'] = "Charge"
|
|
BMS_STATUS['impedances']['current1']['text'] = str(BMS_STATUS['impedances']['current1']['value']) + "A"
|
|
else:
|
|
BMS_STATUS['impedances']['current_mode1']['value'] = -1
|
|
BMS_STATUS['impedances']['current_mode1']['text'] = ""
|
|
BMS_STATUS['impedances']['current1']['text'] = ""
|
|
|
|
for i in range(1, cell_count+1):
|
|
BMS_STATUS['impedances']['cell'+"{:02d}".format(i)+'_impedance']['value'] = get_cell_impedance((packet[7+(2*(i-1))]), (packet[8+(2*(i-1))]))
|
|
BMS_STATUS['impedances']['cell'+"{:02d}".format(i)+'_impedance']['text'] = "{:.1f}".format(BMS_STATUS['impedances']['cell'+"{:02d}".format(i)+'_impedance']['value']) + "m" + SPECIAL_DISPLAY_SYMBOLS['ohm']
|
|
|
|
|
|
|
|
# get min/max impedances to calculate the diff
|
|
cell_impedances = []
|
|
|
|
if (BMS_STATUS['impedances']['cell01_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell01_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell02_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell02_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell03_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell03_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell04_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell04_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell05_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell05_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell06_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell06_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell07_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell07_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell08_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell08_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell09_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell09_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell10_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell10_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell11_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell11_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell12_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell12_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell13_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell13_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell14_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell14_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell15_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell15_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell16_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell16_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell17_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell17_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell18_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell18_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell19_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell19_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell20_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell20_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell21_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell21_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell22_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell22_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell23_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell23_impedance']['value'])
|
|
if (BMS_STATUS['impedances']['cell24_impedance']['value'] >= MIN_CELL_IMPEDANCE):
|
|
cell_impedances.append(BMS_STATUS['impedances']['cell24_impedance']['value'])
|
|
|
|
BMS_STATUS['impedances']['agg_impedances']['sum']['value'] = sum(cell_impedances)
|
|
BMS_STATUS['impedances']['agg_impedances']['sum']['text'] = "{:.1f}".format(BMS_STATUS['impedances']['agg_impedances']['sum']['value']) + "m" + SPECIAL_DISPLAY_SYMBOLS['ohm']
|
|
BMS_STATUS['impedances']['agg_impedances']['max']['value'] = max(cell_impedances)
|
|
BMS_STATUS['impedances']['agg_impedances']['max']['text'] = "{:.1f}".format(BMS_STATUS['impedances']['agg_impedances']['max']['value']) + "m" + SPECIAL_DISPLAY_SYMBOLS['ohm']
|
|
BMS_STATUS['impedances']['agg_impedances']['min']['value'] = min(cell_impedances)
|
|
BMS_STATUS['impedances']['agg_impedances']['min']['text'] = "{:.1f}".format(BMS_STATUS['impedances']['agg_impedances']['min']['value']) + "m" + SPECIAL_DISPLAY_SYMBOLS['ohm']
|
|
BMS_STATUS['impedances']['agg_impedances']['diff']['value'] = BMS_STATUS['impedances']['agg_impedances']['max']['value'] - BMS_STATUS['impedances']['agg_impedances']['min']['value']
|
|
BMS_STATUS['impedances']['agg_impedances']['diff']['text'] = "{:.1f}".format(BMS_STATUS['impedances']['agg_impedances']['diff']['value']) + "m" + SPECIAL_DISPLAY_SYMBOLS['ohm']
|
|
|
|
|
|
# update timestamp
|
|
current_date = datetime.datetime.now()
|
|
BMS_STATUS['impedances']['timestamp']['value'] = time.time()
|
|
BMS_STATUS['impedances']['timestamp']['text'] = current_date.strftime('%a %d.%m.%Y %H:%M:%S')
|
|
|
|
logging.info("BMS Impedances " +
|
|
"][MODE1|" + BMS_STATUS['impedances']['current_mode1']['text'] +
|
|
"][CURRENT1|" + BMS_STATUS['impedances']['current1']['text'] +
|
|
"][SUM|" + BMS_STATUS['impedances']['agg_impedances']['sum']['text'] +
|
|
"][#1|" + BMS_STATUS['impedances']['cell01_impedance']['text'] +
|
|
"][#2|" + BMS_STATUS['impedances']['cell02_impedance']['text'] +
|
|
"][#3|" + BMS_STATUS['impedances']['cell03_impedance']['text'] +
|
|
"][#4|" + BMS_STATUS['impedances']['cell04_impedance']['text'] +
|
|
"][#5|" + BMS_STATUS['impedances']['cell05_impedance']['text'] +
|
|
"][#6|" + BMS_STATUS['impedances']['cell06_impedance']['text'] +
|
|
"][#7|" + BMS_STATUS['impedances']['cell07_impedance']['text'] +
|
|
"][#8|" + BMS_STATUS['impedances']['cell08_impedance']['text'] +
|
|
"][#9|" + BMS_STATUS['impedances']['cell09_impedance']['text'] +
|
|
"][#10|" + BMS_STATUS['impedances']['cell10_impedance']['text'] +
|
|
"][#11|" + BMS_STATUS['impedances']['cell11_impedance']['text'] +
|
|
"][#12|" + BMS_STATUS['impedances']['cell12_impedance']['text'] +
|
|
"][#13|" + BMS_STATUS['impedances']['cell13_impedance']['text'] +
|
|
"][#14|" + BMS_STATUS['impedances']['cell14_impedance']['text'] +
|
|
"][#15|" + BMS_STATUS['impedances']['cell15_impedance']['text'] +
|
|
"][#16|" + BMS_STATUS['impedances']['cell16_impedance']['text'] +
|
|
"][#17|" + BMS_STATUS['impedances']['cell17_impedance']['text'] +
|
|
"][#18|" + BMS_STATUS['impedances']['cell18_impedance']['text'] +
|
|
"][#19|" + BMS_STATUS['impedances']['cell19_impedance']['text'] +
|
|
"][#20|" + BMS_STATUS['impedances']['cell20_impedance']['text'] +
|
|
"][#21|" + BMS_STATUS['impedances']['cell21_impedance']['text'] +
|
|
"][#22|" + BMS_STATUS['impedances']['cell22_impedance']['text'] +
|
|
"][#23|" + BMS_STATUS['impedances']['cell23_impedance']['text'] +
|
|
"][#24|" + BMS_STATUS['impedances']['cell24_impedance']['text'] + "]")
|
|
|
|
else:
|
|
logging.debug("Packet Checksum wrong, skip packet")
|
|
|
|
# strip packet
|
|
packet = packet[packet_length:]
|
|
|
|
else:
|
|
# debug_packet(packet)
|
|
logging.debug("Packet Unknown [1]")
|
|
packet = ""
|
|
|
|
else:
|
|
logging.debug("Packet Unknown [2]")
|
|
packet = ""
|
|
else:
|
|
logging.debug("Packet too short, skip")
|
|
packet = ""
|
|
|
|
|
|
|
|
def handle_serial_data(test_packet = ''):
|
|
try:
|
|
|
|
if (len(test_packet) > 0): # for testing the example packets form the chargery manual
|
|
parse_packet(test_packet)
|
|
else:
|
|
serial_packet = ""
|
|
if (serial_port.in_waiting > 0):
|
|
logging.debug("Data Waiting [" + str(serial_port.in_waiting) + " bytes]")
|
|
if (serial_port.in_waiting >= (PACKET_LENGTH_MINIMUM * 2)):
|
|
data_buffer_array = serial_port.read(serial_port.in_waiting)
|
|
logging.debug("Data Received [" + str(len(data_buffer_array)) + " bytes]")
|
|
|
|
if (len(data_buffer_array) > 0):
|
|
parse_packet(bytearray(data_buffer_array))
|
|
|
|
data_buffer_array = ""
|
|
|
|
except KeyboardInterrupt:
|
|
pass
|
|
|
|
|
|
if args.test:
|
|
print("\n".join(dfs_bms_status(print_status_header, BMS_STATUS)))
|
|
|
|
for item in BMS_TEST_PACKETS.items():
|
|
handle_serial_data((item[1]))
|
|
print(str(dfs_bms_status(print_status_value, BMS_STATUS)).strip('[]'))
|
|
|
|
else:
|
|
if args.output is not None:
|
|
output_file = open(args.output)
|
|
print(",".join(dfs_bms_status(print_status_header, BMS_STATUS)), file=output_file)
|
|
|
|
while True:
|
|
handle_serial_data()
|
|
print(str(dfs_bms_status(print_status_value, BMS_STATUS)).strip('[]'), file=output_file)
|
|
time.sleep(1)
|
|
else:
|
|
while True:
|
|
handle_serial_data()
|
|
time.sleep(1)
|