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batteries.py
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batteries.py
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# *****BatteryMonitor main file batteries.py*****
# Copyright (C) 2014 Simon Richard Matthews
# Project loaction https://github.com/simat/BatteryMonitor
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#!/usr/bin/python
import sys
#import smbus
#import Adafruit_ADS1x15
import time
from shutil import copy as filecopy
from config import loadconfig, config, editbatconfig
from configparser import SafeConfigParser
numcells = config['battery']['numcells']
import logger
log = logger.logging.getLogger(__name__)
log.setLevel(logger.logging.DEBUG)
log.addHandler(logger.errfile)
from demandmanager import solaravailable, initdemand
from getdata import Readings
from alarms import Alarms
import mqtt
"""if "telsa" in config:
teslaenabled=config['tesla']['enable']
if teslaenabled:
import tesla"""
maxtries=3 # number of error retries befor abort
#exec(config['files']['alarms']) # import alarm code
#import Adafruit_BBIO.GPIO as GPIO
def initmain(soc):
""" initialise main loop, soc is SOC to start battery DOD to"""
summary = logsummary.summary
printtime = int(time.strftime("%Y%m%d%H%M%S ", time.localtime()))
# print (int(summary['current']['timestamp']),printtime)
while printtime < int(summary['current']['timestamp']):
print(printtime,summary['current']['timestamp'])
print ("Error: Current time before last sample time")
time.sleep(30)
printtime = int(time.strftime("%Y%m%d%H%M%S", time.localtime()))
filecopy(config['files']['summaryfile'],config['files']['summaryfile']+"R" + str(int(printtime)))
if soc > config['battery']['capacity']:
print ("Battery DOD must be less than Battery Capacity")
else:
if soc < 0:
batdata.soc = summary['current']['ah'][0]
batdata.socadj = summary['current']['dod'][0]
else:
batdata.soc = soc
batdata.socadj = soc
summary['current']['dod'][3] = 0
summary['current']['dod'][3] = -100 # flag don't adjust leakage current
initdemand(1-batdata.socadj/config['battery']['capacity'])
prevtime = logsummary.currenttime
# logsummary.startday(summary)
# logsummary.starthour(summary)
def mainloop():
""" Main loop, gets battery data, gets summary.py to do logging"""
# global prevbatvoltage
summary = logsummary.summary
for i in range(config['sampling']['samplesav']):
# printvoltage = ''
# for i in range(numcells+1):
# printvoltage = printvoltage + str(round(batdata.batvolts[i],3)).ljust(5,'0') + ' '
# print (printvoltage)
batdata.getraw()
# if batdata.batvoltsav[numcells] >= 55.2 and prevbatvoltage < 55.2: # reset SOC counter?
# print batdata.socadj/(float(summary['current']['dod'][3])*24.0)
if batdata.batvoltsav[numcells] > config['battery']['vreset'] \
and -batdata.currentav[-3] < config['battery']['ireset']: # reset SOC counter?
if summary['current']['dod'][3] <= 0 :
socerr=0
else:
socerr=batdata.socadj/(float(summary['current']['dod'][3])*24.0)
socerr=max(socerr,-0.01)
socerr=min(socerr,0.01)
config['battery']['ahloss']=config['battery']['ahloss']-socerr/2
editbatconfig('battery','ahloss',str(config['battery']['ahloss']))
batdata.soc = config['battery']['socreset']
batdata.socadj = batdata.soc
summary['current']['dod'][3] = 0
else:
batdata.soc = batdata.soc + batdata.batah
batdata.socadj = batdata.socadj +batdata.batahadj
batdata.prevbatvoltage = batdata.batvoltsav[numcells]
batdata.ah = batdata.ah + batdata.batah
batdata.inahtot = batdata.inahtot + batdata.inah
batdata.pwrbattot = batdata.pwrbattot + batdata.pwrbat
batdata.pwrintot = batdata.pwrintot + batdata.pwrin
# check alarms
alarms.scanalarms(batdata)
# update summaries
batdata.pwravailable,batdata.minmaxdemandpwr=solaravailable(batdata)
# if teslaenabled:
# tesla.updatecharge(batdata)
logsummary.update(summary, batdata)
currenttime=str(logsummary.currenttime)
prevtime=str(logsummary.prevtime)
if currenttime[10:12] != prevtime[10:12]: # new minute
loadconfig()
logsummary.updatesection(summary, 'hour', 'current')
logsummary.updatesection(summary, 'alltime','current')
logsummary.updatesection(summary, 'currentday','current')
logsummary.updatesection(summary, 'monthtodate', 'current')
logsummary.updatesection(summary, 'yeartodate', 'current')
logsummary.writesummary()
for item in config['mqtt']['payload']:
config['mqtt']['payload'][item]=eval(config['mqtt']['payload'][item])
mqtt.publish(config['mqtt']['topic'],f"{config['mqtt']['payload']}".replace("'",'"'))
# print(f'{config["mqtt"]["payload"]}')
batdata.ah = 0.0
batdata.ahadj = 0.0
batdata.inahtot = 0.0
batdata.pwrbattot = 0.0
batdata.pwrintot = 0.0
for i in range(batdata.numiins):
batdata.kWhin[i] = 0.0
batdata.kWhout[i] = 0.0
for i in range(numcells):
batdata.baltime[i]=0
if currenttime[8:10] != prevtime[8:10]: # new hour
logsummary.starthour(summary)
if currenttime[6:8] != prevtime[6:8]: # newday
logsummary.startday(summary)
if currenttime[4:6] != prevtime[4:6]: # new month
logsummary.startmonth(summary)
if currenttime[0:4] != prevtime[0:4]: # new year
logsummary.startyear(summary)
import summary
logsummary=summary.Summary()
batdata = Readings() # initialise batdata
alarms = Alarms(batdata,summary) # initialise alarms
def deamon(soc=-1):
"""Battery Management deamon to run in background"""
numtries=0
while True:
try:
initmain(soc)
while True:
mainloop()
numtries=0
except KeyboardInterrupt:
numtries=maxtries
sys.stdout.write('\n')
logsummary.close()
raise
# sys.exit(9)
except Exception as err:
log.critical(err)
numtries+=1
soc=-1
if numtries==maxtries:
logsummary.close()
raise
if __name__ == "__main__":
print (sys.argv)
if len(sys.argv) > 1:
deamon(float(sys.argv[1]))
else:
deamon()