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- import pandas as pd
- import numpy as np
- class BatDiag:
- def __init__(self, df_bms, df_soh, df_sor): #参数初始化
- self.df_bms=df_bms
- self.vin=df_bms['VIN']
- self.model=df_bms['VehModel']
- self.sn=df_bms['SN']
- self.end_time='0000-00-00 00:00:00'
-
- self.cellvolt_name=['CellVolt'+str(x) for x in range(1,self.param.CellVoltNums+1)]
- self.celltemp_name=['CellTemp'+str(x) for x in range(1,self.param.CellTempNums+1)]
-
- #电芯电压无效故障........................................................................................................................................................
- def cellvoltvalid(self,df_ram,df_param):
- # df_res=pd.DataFrame(columns=['start_time', 'end_time', 'vin', 'sn', 'model', 'fault_code', 'fault_reason', 'fault_advice', 'fault_location'])
- df_volt=self.df_bms[['Time']+self.cellvolt_name]
- volt_mean=df_volt[self.cellvolt_name].mean(axis=1)
- volt_std=df_volt[self.cellvolt_name].std(axis=1)
- volt_std = volt_std.replace(0,0.000001)
- df_stray=df[self.cellvolt_name].sub(volt_mean,axis=0).div(volt_std,axis=0)
- if df_ram.empty:
- #电压断线
- df=df_volt[((df_volt[self.cellvolt_name]<2.5).any(1)) & ((df_volt[self.cellvolt_name]>4.5).any(1))]
- if not df.empty:
- list_of_df = np.split(df, np.flatnonzero(np.diff(df.index) != 1) + 1)
- df=max(list_of_df, key=len, default='')
- if df.iloc[-1]['Time']-df.iloc[0]['Time']>df_param:
- cellvolt=np.array(df.iloc[0][self.cellvolt_name])
- cellvoltmin_index=cellvolt.index(min(cellvolt))+1
- cellvoltmax_index=cellvolt.index(max(cellvolt))+1
- if abs(cellvoltmax_index-cellvoltmin_index)==1:
- time=df.iloc[0]['Time']
- faultcode='C309'
- faultlv=3
- faultinfo='电芯电压无效'
- reason='电芯电压采样线断线'
- faultlocation='电芯{}'.format([cellvoltmin_index,cellvoltmax_index])
- faultadvice='召回电池包，进行检修'
- influence='失去对电芯电压监测'
- df_ram.loc[0]=[time, self.end_time, self.vin, self.sn, self.model, faultcode, reason, faultadvice, faultlocation]
- else:
- pass
- else:
- pass
- else:
- pass
- #电压超限
- if df_ram.empty:
- df=df_volt[((df_volt[self.cellvolt_name]<1).any(1)) | ((df_volt[self.cellvolt_name]>5).any(1))]
- if not df.empty:
- list_of_df = np.split(df, np.flatnonzero(np.diff(df.index) != 1) + 1)
- df=max(list_of_df, key=len, default='')
- if df.iloc[-1]['Time']-df.iloc[0]['Time']>df_param:
- cellvolt=np.array(df.iloc[0][self.cellvolt_name])
- time=df.iloc[0]['Time']
- faultcode='C309'
- faultlv=3
- faultinfo='电芯电压无效'
- reason='电芯电压采样电路异常'
- faultlocation='电芯{}'.format(list(np.argwhere(cellvolt)<1+1)+list(np.argwhere(cellvolt)>5+1))
- faultadvice='召回电池包，进行检修'
- influence='失去对电芯电压监测'
- df_ram.loc[0]=[time, self.vin, self.sn, self.model, faultcode, reason, faultadvice, faultlocation]
- else:
- pass
- else:
- pass
- else:
- pass
- #电压采样松动
- if df_ram.empty:
- df=df_stray[((df_stray[self.cellvolt_name]<-4).any(1)) & ((df_stray[self.cellvolt_name]>4).any(1))]
- if not df.empty:
- list_of_df = np.split(df, np.flatnonzero(np.diff(df.index) != 1) + 1)
- df=max(list_of_df, key=len, default='')
- if df.iloc[-1]['Time']-df.iloc[0]['Time']>df_param:
- cellvolt=np.array(df.iloc[0][self.cellvolt_name])
- time=df.iloc[0]['Time']
- faultcode='C309'
- faultlv=3
- faultinfo='电芯电压无效'
- reason='电芯电压采样线松动'
- faultlocation='电芯{}'.format(list(np.argwhere(cellvolt)<1+1)+list(np.argwhere(cellvolt)>5+1))
- faultadvice='召回电池包，进行检修'
- influence='失去对电芯电压监测'
- df_ram.loc[0]=[time, self.vin, self.sn, self.model, faultcode, reason, faultadvice, faultlocation]
- else:
- pass
- else:
- pass
- else:
- pass
-
-
- return df_ram
-
-
-
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