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Copy pathea.py
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215 lines (183 loc) · 8.34 KB
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import easy_scpi as scpi
import time,queue
from datetime import datetime
class EA:
def __init__(self, settings,data):
self.inst = scpi.Instrument(settings['port'])
self.inst.connect()
self.inst.write('SYST:LOCK ON') # AYBABTU https://www.youtube.com/watch?v=ynQdJe48bkE
self.cap = 0
self.version = 0.001
self.maxvolt = settings['maxvolt']
self.minvolt = settings['minvolt']
self.ccurr = settings['ccurr']
self.dcurr = settings['dcurr']
self.drest = int(float(settings['drest']))
self.crest = int(float(settings['crest']))
self.ccutoff = settings['ccutoff']
self.dcutoff = settings['dcutoff']
self.dataq = data
print(settings)
print(self.maxvolt)
def nounit(self, data):
value = str(data).split(" ")
return float(value[0])
def datastr(self):
timestamp = datetime.now()
data = str(self.inst.query('MEAS:VOLT?;MEAS:CURR?;MEAS:POW?;STAT:OPER:COND?')).split(";")
print(data)
v = self.nounit(data[0])
i = self.nounit(data[1])
p = self.nounit(data[2])
con = data[3]
cap = self.calc_cap(int(timestamp.timestamp()),i)
# Fixing Problem 1, 2, and 3
print(str(timestamp) + ";" + str(v) + ";" + str(i) + ";" + str(cap) + ";" + str(p))
self.dataq.put(str(timestamp) + ";" + str(v) + ";" + str(i) + ";" + str(cap) + ";" + str(p) + ";" + str(con))
return v,i,con
def setpara(self,volt,curr,cutoff):
self.cap = 0
self.inst.write('VOLT ' + str(volt) + ';CURR ' + str(curr) + ';SINK:CURR ' + str(curr)+';POW MAX;' + 'SINK:POW MAX')
self.inst.write('OUTP ON')
self.rest(1)
def rest(self,seconds):
for x in range(0,int(float(seconds))):
self.datastr()
time.sleep(1)
def charge(self,volt,curr,cutoff):
self.setpara(volt,curr,cutoff)
v,i,con = self.datastr()
while True:
v,i,con = self.datastr()
#Cut OFF erreicht abschalten
if i <= float(cutoff):
self.inst.write('OUTP OFF')
return "Laden abgeschlossen"
time.sleep(1)
def discharge(self,volt,curr,cutoff):
self.setpara(volt,curr,cutoff)
while True:
v,i,con = self.datastr()
#Cut OFF erreicht abschalten
if i >= (-abs(float(cutoff))):
self.inst.write('OUTP OFF')
return "Entladen abgeschlossen"
#Cut OFF erreicht abschalten
if i >= (-abs(float(cutoff))):
self.inst.write('OUTP OFF')
return "Entladen abgeschlossen"
time.sleep(1)
def rescuecharge(self,volt,cutoff):
print("Rescuecharge gestartet")
self.charge(volt,self.ccurr,cutoff)
return "Rescuecharge abgeschlossen"
# All Calculation Happen here
def calc_cap(self,start,i):
self.cap = self.cap + i * ((time.time() - start) + 1) / 3600
return self.cap
def calc_ires(self,v,oldv,i,oldi):
r = (v-oldv) / (i-oldi)
return (r)
# This is how a Test Looks Like
# Test Innenwiderstand
def test_ires(self,settings):
print("Folgende Einstellungen werden für den Innenwiderstandstest verwendet: \n")
print(settings)
v,i,con = self.datastr()
if v > float(settings['ires_volt']):
self.discharge(str(settings['ires_volt']),self.dcurr,str(settings['ires_cutoff']))
self.rest(int(float(self.crest)))
if v < float(settings['ires_volt']):
self.charge(str(settings['ires_volt']),self.ccurr,str(settings['ires_cutoff']))
self.rest(int(float(self.drest)))
if v == float(settings['ires_volt']):
print("Zelle hat die gewünschte Spannung")
self.rest(1)
self.rest(settings['ires_rest'])
v,i,con = self.datastr()
print("Folgende Einstellungen werden für den Innenwiderstandstest verwendet: \n")
print(settings)
v,i,con = self.datastr()
if v > float(settings['ires_volt']):
self.discharge(str(settings['ires_volt']),self.dcurr,str(settings['ires_cutoff']))
self.rest(int(float(self.crest)))
if v < float(settings['ires_volt']):
self.charge(str(settings['ires_volt']),self.ccurr,str(settings['ires_cutoff']))
self.rest(int(float(self.drest)))
if v == float(settings['ires_volt']):
print("Zelle hat die gewünschte Spannung")
self.rest(1)
self.rest(settings['ires_rest'])
v,i,con = self.datastr()
oldv = v
# Befehl für Test an gerät senden und starten
self.setpara(str(self.maxvolt),str(settings['ires_curr']),str(settings['ires_cutoff']))
self.setpara(str(self.maxvolt),str(settings['ires_curr']),str(settings['ires_cutoff']))
for x in range(0,int(float(settings['ires_timecutoff']))+1):
v,i,con = self.datastr()
v,i,con = self.datastr()
print("Dies ist Durchlauf Nummer", x)
time.sleep(1)
time.sleep(1)
self.inst.write('OUTP OFF')
#print(self.calc_ires(v,oldv,i,0))
self.rest(int(float(settings['ires_rest'])))
#print(self.calc_ires(v,oldv,i,0))
self.rest(int(float(settings['ires_rest'])))
return("Innenwiderstandstest abgeschlossen")
# Test Zyklisieren
# Zelle wird erst Entladen danach starten die Zyklus Durchläufe Zelle wird geladen und dann
def test_cycle(self,Zyklus):
print("Batterie entladen")
self.discharge(self.minvolt,self.dcurr,self.dcutoff)
self.rest(int(float(self.drest)))
self.discharge(self.minvolt,self.dcurr,self.dcutoff)
self.rest(int(float(self.drest)))
print("Zyklus gestartet")
for x in range(0,int(Zyklus['cycle_nr'])):
self.charge(self.maxvolt,self.ccurr,self.ccutoff)
self.rest(int(float(self.crest)))
self.discharge(self.minvolt,self.dcurr,self.dcutoff)
self.rest(int(float(self.drest)))
self.charge(self.maxvolt,self.ccurr,self.ccutoff)
self.rest(int(float(self.crest)))
self.discharge(self.minvolt,self.dcurr,self.dcutoff)
self.rest(int(float(self.drest)))
print("Zyklus Durchlauf " + str(x) + " abgeschlossen")
return "Zyklus beendet"
def test_watt_cycle(self,Zyklus,watt):
self.setpara(self.maxvolt,self.ccurr,self.ccutoff)
self.rest(1)
for x in range(0,int(Zyklus['cycle_nr'])):
for item in watt:
if float(item) < 0:
print("Negativ " + str(abs(float(item))))
self.inst.write('VOLT ' + self.maxvolt + ';POW ' + str(abs(float(item))))
v,i,con = self.datastr()
self.seccheck(v,con)
time.sleep(1)
else:
print("Positiv " + str(item))
self.inst.write('VOLT ' + self.minvolt + ';SINK:POW ' + str(item))
v,i,con = self.datastr()
self.seccheck(v,con)
time.sleep(1)
print("Zyklus Durchlauf " + str(x) + " abgeschlossen")
self.rest(int(float(self.drest)))
return "Watt Zyklus beendet"
def seccheck(self,v,con):
if v > (float(self.maxvolt)+0.1):
print("Zelle ist zu voll")
self.inst.write('OUTP OFF')
return("Zelle ist zu Voll")
elif con == "4352\n" and v <= (float(self.minvolt)):
print("CV Ladung beginnt Zelle wird geladen")
self.charge(self.maxvolt,self.ccurr,self.ccutoff)
self.rest(int(float(self.crest)))
self.inst.write('OUTP ON')
else:
pass
def quit(self):
time.sleep(10)
self.inst.close()
return("EA Verbindung getrennt")