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- import pandas as pd
- import pymysql
- from sqlalchemy import create_engine
- import datetime
- from sqlalchemy.orm import sessionmaker
- import pdb
- # #建立引擎
- # engine = create_engine(str(r"mysql+mysqldb://%s:" + '%s' + "@%s/%s") % ('root', 'pengmin', 'localhost', 'qixiangdb'))
- # #连接到qx数据库
- # conn_qx = pymysql.connect(
- # host='rm-bp10j10qy42bzy0q77o.mysql.rds.aliyuncs.com',
- # user='qx_cas',
- # password='Qx@123456',#Qx@123456
- # database='qx_cas',
- # charset='utf8'
- # )
- # #连接到本地数据库,输出物
- # conn_local = pymysql.connect(
- # host='localhost',
- # user='root',
- # password='pengmin',
- # database='qixiangdb',
- # charset='utf8'
- # )
- #计算下一个soc
- def getNextSoc(start_soc):
- '''输入当前的soc,寻找目标soc函数'''
- if start_soc>80:
- next_soc=80
- elif start_soc>60:
- next_soc=60
- elif start_soc>40:
- next_soc=40
- elif start_soc>20:
- next_soc=20
- else:
- next_soc=5#下一次目标soc
- return next_soc
- #更新全部5个区间段的factor
- def updtSnFct(sn_factor_df,end_soc,delta_range,range_soc):
- '''输入当前的soc区间段,里程变量量,soc变化量,输出新的df
- sn_factor_df为dataframe,delta_range单位为km,range_soc单位为km/persoc'''
- if end_soc==80:
- updtFctByCol(sn_factor_df,'a0',delta_range,range_soc)
- elif end_soc==60:
- updtFctByCol(sn_factor_df,'a1',delta_range,range_soc)
- elif end_soc==40:
- updtFctByCol(sn_factor_df,'a2',delta_range,range_soc)
- elif end_soc==20:
- updtFctByCol(sn_factor_df,'a3',delta_range,range_soc)
- elif end_soc<20:
- updtFctByCol(sn_factor_df,'a4',delta_range,range_soc)
- return sn_factor_df
- #更新一列的factor
- def updtFctByCol(sn_factor_df,colmun_name,delta_range,range_soc):
- '''更新制定列的factor,sn_factor_df为dataframe,新的系数更新到第一行。delta_range单位为km,
- range_soc单位为km/persoc,默认按照100km更新续驶里程权重'''
- range_soc_old=sn_factor_df.loc[0,colmun_name]#读取第0行的老factor
- debounce_range=100#更新权重
- new_factor=range_soc*((delta_range)/debounce_range)+range_soc_old*(1-delta_range/debounce_range)
- #在第1行,存储新的factor
- sn_factor_df.loc[1,colmun_name]=new_factor
- return sn_factor_df
- #更新今日的factor
- def updtTodayFct(factor_input,sn_day_df):
- '''更新今日的Factor***'''
- sn_factor_df_last=factor_input
- start_soc=sn_day_df.loc[0,'soc']#首行soc
- next_soc=getNextSoc(start_soc)#下一个目标soc
- start_range=sn_day_df.loc[0,'vehodo']#首行vehodo
- sn=sn_day_df.loc[0,'name']#sn号
- for index in range(len(sn_day_df)-1):
- #寻找分割点,
- index_soc=sn_day_df.loc[index,'soc']#当前行soc
- next_index_soc=sn_day_df.loc[index+1,'soc']#下一行soc
- if (index_soc>=next_soc)&(next_index_soc<next_soc):
- #当前行soc>目标soc,下一行低soc<目标soc,说明到达了分割点80-60-40-20
- delta_soc_tonext=start_soc-next_soc#两个距离点的soc差,单位为%
- delta_range_tonext=sn_day_df.loc[index,'vehodo']-start_range#两个时间点的距离差,单位为m
- delta_range_tonext_km=delta_range_tonext/1000#两个时间点的距离差,单位为km
- range_soc_tonext=(delta_range_tonext_km)/delta_soc_tonext#单位soc可行驶的公里数
- # print(sn+'start_soc: '+str(start_soc),'next_soc: '+str(next_soc),'delta_vehodo; '+str(round(delta_range_tonext_km,3))
- # +'km'+' range_soc:'+str(round(range_soc_tonext,3)))#调试用语句,看单次factor变化量
- if (delta_range_tonext_km>1)&(delta_range_tonext_km<5*delta_soc_tonext):
- #里程变化量>1km。且<5倍的soc变化量,大于此值认为不合理。
- sn_factor_df_last=updtSnFct(sn_factor_df_last,next_soc,delta_range_tonext_km,range_soc_tonext)
-
- start_soc=next_index_soc#变更开始soc
- next_soc=getNextSoc(start_soc)#变更结束soc
- start_range=sn_day_df.loc[index+1,'vehodo']#变更开始里程
- return sn_factor_df_last
- #对driveinfo进行预处理
- def snDayDfPreProcess(sn_day_df):
- '''预处理,判断是否在dirvemode,获取drivemode条件下的累计行驶距离。
- 增加delta_soc列,drive_flg列,vehodo列'''
- sn_day_df=sn_day_df.reset_index(drop=True)#重置index
- #增加列,计算delta_soc
- for index in range(len(sn_day_df)):
- if index==0:
- sn_day_df.loc[index,'delta_soc']=0
- else:
- sn_day_df.loc[index,'delta_soc']=sn_day_df.loc[index,'soc']-sn_day_df.loc[index-1,'soc']
- #增加列,判断是否在drive状态
- drive_flg=False
- accum_distance=0
- for index in range(len(sn_day_df)):
- if index==0:
- sn_day_df.loc[index,'drive_status']=drive_flg
- sn_day_df.loc[index,'vehodo']=0
- else:
- if (sn_day_df.loc[index,'delta_soc']<-0.1)|\
- ((sn_day_df.loc[index,'delta_soc']<=0)&(sn_day_df.loc[index,'distance']>500)):#soc处于下降状态,说明在drive
- drive_flg=True#置true
- elif sn_day_df.loc[index,'delta_soc']>0.1:#soc处于上升状态,说明不在drive
- drive_flg=False#置false
- accum_distance=0#清零
- sn_day_df.loc[index,'drive_flg']=drive_flg
- accum_distance+=sn_day_df.loc[index,'distance']#对行驶里程进行累加
- sn_day_df.loc[index,'vehodo']=accum_distance
- #筛选所有的drive信息行
- sn_day_drive_df=sn_day_df.loc[sn_day_df['drive_flg']==True,:]
- #按时间进行一次筛选,此处丢弃了晚上0点以后的行车数据
- sn_day_drive_df=sn_day_drive_df.reset_index(drop=True)#重置index
-
- return sn_day_drive_df
- #更新所有sn,连读多天的的factor
- def updtAllSnFct(start_date,end_date, db_engine, db_local, db_qx, sn_table_name='tb_sn_factor'):
- '''计算开始时间到结束时间的,所有sn的factor'''
- start_date_datetime=datetime.datetime.strptime(start_date,'%Y-%m-%d')#开始时间
- end_date_datetime=datetime.datetime.strptime(end_date,'%Y-%m-%d')#开始时间
- delta_day=(end_date_datetime-start_date_datetime).days#间隔天数
- i=1
- while i<=delta_day:
- end_date=(start_date_datetime+datetime.timedelta(days=i)).strftime("%Y-%m-%d")
- updtAllSnTodayFct(start_date,end_date, db_engine, db_local, db_qx, sn_table_name)#调用函数
- # print('update all sn factor from '+start_date+" to "+end_date)
- start_date=end_date
- i+=1#自加
- #更新所有sn,一天的factor
- def updtAllSnTodayFct(start_date,end_date, db_engine, db_local, db_qx, sn_table_name):
- ''''更新今天所有sn的factorx信息,start_date和end_date相隔一天。此处还可优化'''
- # conn_local = pymysql.connect(
- # host='localhost',
- # user='root',
- # password='pengmin',
- # database='qixiangdb',
- # charset='utf8'
- # )
-
- start_date_str="'"+start_date+"'"
- end_date_str="'"+end_date+"'"
- sql_cmd="select * from drive_info where time between "+start_date_str+" and "+end_date_str+" and distance!=0;"
- range_soc_df = pd.read_sql(sql_cmd, db_qx)#使用read_sql方法查询qx数据库
- #筛选出所有当日数据之后,筛选当日有更新的sn
- today_sn_list=range_soc_df['name'].unique().tolist()#[:100]#先一次更新5个
- #建立空的dataframe,用于承接所有更新的factor信息
- today_sn_fct_df=pd.DataFrame([],columns=['sn','date','a0','a1','a2','a3','a4'])
- for sn in today_sn_list:
- #寻找factor_df,里面是否有sn号,如果没有sn对应信息,则新增信息。
- sn_str="'"+sn+"'"
- update_today_factor_flg=True
- sql_cmd3="select sn,date,a0,a1,a2,a3,a4 from {} where date=".format(sn_table_name)+start_date_str+" and sn="+sn_str
- factor_today_df=pd.read_sql(sql_cmd3, db_local)#使用read_sql方法查询local数据库
- if len(factor_today_df)>=1:
- # print(sn+' '+start_date_str+' factor exist in table! Factor not update.')
- update_today_factor_flg=False
- sql_cmd2="select sn,date,a0,a1,a2,a3,a4 from {} where date<".format(sn_table_name)+start_date_str+" and sn="+sn_str
- #此处可以限定每次查询的数量,例如不高于5行
- factor_df=pd.read_sql(sql_cmd2, db_local)#使用read_sql方法查询local数据库
- #按照sn号和日期进行去重,避免运行时重复产生factor数据,保留第一次出现的行。
- factor_df=factor_df.drop_duplicates(subset=['sn','date'],keep='first')
- if len(factor_df)==0:
- #如果没有搜索到factor历史数据,则声明一个新的进行初始化
- start_date_datetime=datetime.datetime.strptime(start_date,'%Y-%m-%d')
- yesterday=(start_date_datetime+datetime.timedelta(days=-1)).strftime("%Y-%m-%d")
- #为sn申请一个新的factor,初始值为1
- factor_df=pd.DataFrame({'sn':sn,'date':yesterday,'a0':[1],'a1':[1],'a2':[1],'a3':[1],'a4':[1]})
- sn_factor_df=factor_df.loc[factor_df['sn']==sn,:]#筛选sn对应的factor
- sn_factor_df=sn_factor_df.sort_values(by='date',ascending='True')#按照日期排序
- sn_factor_df_last=sn_factor_df.tail(1).copy()#寻找最后一行,代表最近日期
- sn_factor_df_last=sn_factor_df_last.append(sn_factor_df_last)#新增加一行,用于存储新的factor
- sn_factor_df_last=sn_factor_df_last.reset_index(drop=True)#重置index
- sn_factor_df_last.loc[1,'date']=start_date#更改后一行的date为当前日期
- #筛选对应车辆的信息
- condition_sn=(range_soc_df['name']==sn)
- sn_day_df=range_soc_df.loc[condition_sn,:].copy()
- sn_day_df=sn_day_df.reset_index(drop=True)
- #使用updtTodayFct函数更新今天的factor
- if len(sn_day_df)>=2:
- #使用process函数,进行预处理
- sn_day_df=snDayDfPreProcess(sn_day_df)#预处理函数
- # 临时措施,删除每天晚上0点以后的数据,5点以前的数据,防止对驾驶cycle判断产生影响。
- day_start_time=datetime.datetime.strptime(start_date,'%Y-%m-%d')
- day_morning_time=day_start_time+datetime.timedelta(hours=5)
- morning_time_str=day_morning_time.strftime('%Y-%m-%d %H:%M:%S')
- sn_day_df=sn_day_df.loc[sn_day_df['time']>morning_time_str,:]#去除掉了每天晚上0点以后的数据,短期措施
- sn_day_df=sn_day_df.reset_index(drop=True)#重置index
- if len(sn_day_df)>=2:
- sn_factor_df_new=updtTodayFct(sn_factor_df_last,sn_day_df)#
- if (len(sn_factor_df_new)>=2)&(update_today_factor_flg):#如果factor
- today_sn_fct_df=today_sn_fct_df.append(sn_factor_df_new.loc[1,:])#筛选第一行,进行拼接,最后写入到数据库中
-
- #将today_sn_fct_df写入到数据库中,今天所有factor更新的系数,一次写入。
- if len(today_sn_fct_df)>=1:
- today_sn_fct_df.to_sql(sn_table_name,con=db_engine,chunksize=10000,if_exists='append',index=False)
- #更新一个sn,连续多天的factor
- def updtOneSnFct(sn,start_date,end_date,db_engine, db_local, db_qx, sn_table_name='tb_sn_factor'):
- '''计算开始时间到结束时间的,一个sn的所有factor。
- 重复多次调用,updtOneSnTodayFct。
- '''
- start_date_datetime=datetime.datetime.strptime(start_date,'%Y-%m-%d')#开始时间
- end_date_datetime=datetime.datetime.strptime(end_date,'%Y-%m-%d')#开始时间
- delta_day=(end_date_datetime-start_date_datetime).days#间隔天数
- i=1
- while i<=delta_day:
- end_date=(start_date_datetime+datetime.timedelta(days=i)).strftime("%Y-%m-%d")
- # print('update one '+sn+'factor from '+start_date+" to "+end_date)
- updtOneSnTodayFct(sn,start_date,end_date,db_engine, db_local, db_qx, sn_table_name)#调用函数,更新当日的factor。
- start_date=end_date
- i+=1#自加
- #更新一个sn,一天的factor
- def updtOneSnTodayFct(sn,start_date,end_date,db_engine, db_local, db_qx, sn_table_name):
- '''更新一个sn,一天的factor。'''
- #重新建立连接,更新数据库
- # conn_local = pymysql.connect(
- # host='localhost',
- # user='root',
- # password='pengmin',
- # database='qixiangdb',
- # charset='utf8'
- # )
- start_date_str="'"+start_date+"'"
- end_date_str="'"+end_date+"'"
- sn_str="'"+sn+"'"
- sql_cmd="select * from drive_info where time between "+start_date_str+" and "+end_date_str+\
- " and distance!=0 and name="+sn_str
- range_soc_df = pd.read_sql(sql_cmd, db_qx)#使用read_sql方法查询qx数据库
- if len(range_soc_df)>0:
- #筛选出所有当日数据之后,筛选当日有更新的sn
- today_sn_list=range_soc_df['name'].unique().tolist()
- #建立空的dataframe,用于承接所有更新的factor信息
- today_sn_fct_df=pd.DataFrame([],columns=['sn','date','a0','a1','a2','a3','a4'])
- for sn in today_sn_list:
- #寻找factor_df,里面是否有sn号,如果没有sn对应信息,则新增信息。
- sn_str="'"+sn+"'"
- update_today_factor_flg=True
- sql_cmd3="select sn,date,a0,a1,a2,a3,a4 from {} where date=".format(sn_table_name)+start_date_str+" and sn="+sn_str
- factor_today_df=pd.read_sql(sql_cmd3, db_local)#使用read_sql方法查询local数据库
- if len(factor_today_df)>=1:
- # print(sn+' '+start_date_str+' factor exist in table! Factor not update.')
- update_today_factor_flg=False
- sql_cmd2="select sn,date,a0,a1,a2,a3,a4 from {} where date<=".format(sn_table_name)+start_date_str+" and sn="+sn_str
- factor_df=pd.read_sql(sql_cmd2, db_local)#使用read_sql方法查询local数据库
- #按照sn号和日期进行去重,避免运行时重复产生factor数据,保留第一次出现的行。
- factor_df=factor_df.drop_duplicates(subset=['sn','date'],keep='first')
- # pdb.set_trace()
- if len(factor_df)==0:
- #如果没有搜索到factor历史数据,则声明一个新的进行初始化
- start_date_datetime=datetime.datetime.strptime(start_date,'%Y-%m-%d')
- yesterday=(start_date_datetime+datetime.timedelta(days=-1)).strftime("%Y-%m-%d")
- factor_df=pd.DataFrame({'sn':sn,'date':yesterday,'a0':[1],'a1':[1],'a2':[1],'a3':[1],'a4':[1]})
- today_sn_fct_df=today_sn_fct_df.append(factor_df.loc[0,:])#将初始化的行记录到数据库
- sn_factor_df=factor_df.loc[factor_df['sn']==sn,:]#筛选sn对应的factor
- sn_factor_df=sn_factor_df.sort_values(by='date',ascending='True')#按照日期排序
- sn_factor_df_last=sn_factor_df.tail(1).copy()#寻找最后一行,代表最近日期
- sn_factor_df_last=sn_factor_df_last.append(sn_factor_df_last)#新增加一行,用于存储新的factor
- sn_factor_df_last=sn_factor_df_last.reset_index(drop=True)#重置index
- sn_factor_df_last.loc[1,'date']=start_date#更改后一行的date为当前日期
- #筛选对应车辆的信息
- condition_sn=(range_soc_df['name']==sn)
- sn_day_df=range_soc_df.loc[condition_sn,:].copy()
- sn_day_df=sn_day_df.reset_index(drop=True)
- #使用updtTodayFct函数更新今天的factor
- if len(sn_day_df)>=2:
- #使用process函数,进行预处理
- sn_day_df=snDayDfPreProcess(sn_day_df)#!!!!!!!!!!!增加
- # 临时措施,删除每天晚上0点以后的数据,5点以前的数据,防止对驾驶cycle判断产生影响。
- day_start_time=datetime.datetime.strptime(start_date,'%Y-%m-%d')
- day_morning_time=day_start_time+datetime.timedelta(hours=5)
- morning_time_str=day_morning_time.strftime('%Y-%m-%d %H:%M:%S')
- sn_day_df=sn_day_df.loc[sn_day_df['time']>morning_time_str,:]#去除掉了每天晚上0点以后的数据,短期措施
- sn_day_df=sn_day_df.reset_index(drop=True)#重置index
- if len(sn_day_df)>=2:
- sn_factor_df_new=updtTodayFct(sn_factor_df_last,sn_day_df)#更新fator的主函数
- if (len(sn_factor_df_new)>=2)&(update_today_factor_flg):#如果今日factor没有更新
- today_sn_fct_df=today_sn_fct_df.append(sn_factor_df_new.loc[1,:])#筛选第一行,进行拼接,最后写入到数据库中
-
- # #将today_sn_fct_df写入到数据库中
- if len(today_sn_fct_df)>=1:
- today_sn_fct_df.to_sql(sn_table_name,con=db_engine,chunksize=10000,if_exists='append',index=False)
- # print(sn+' factor will be update in table tb_sn_factor!')
- return sn_factor_df_new
- #更新最新的factor,一天调用一次。
- def updtNewestFctTb(current_time, db_local, sn_table_name='tb_sn_factor'):
- '''更新tb_sn_factor_newest,只保留最新日期的factor。
- 从tb_sn_factor中,筛选最新的日期。
- 函数每天运行一次,从tb_sn_factor中筛选最新日期的factor。'''
- current_time=current_time#当前时间
- current_time_str=current_time.strftime('%Y-%m-%d %H:%M:%S')#时间格式化为字符串,年-月-日 时-分-秒
- current_time_str="'"+current_time_str+"'"
- sql_cmd_4="select sn,date,a0,a1,a2,a3,a4 from {} where date<".format(sn_table_name)+current_time_str
- factor_all_df = pd.read_sql(sql_cmd_4, db_local)#使用read_sql方法查询qx数据库
- #筛选今天之前的所有factor,只保留最近的一天。
- sn_list=factor_all_df['sn'].unique().tolist()#筛选sn序列
- newest_sn_fct_df=pd.DataFrame([],columns=['sn','date','a0','a1','a2','a3','a4'])#声明空df
- for sn in sn_list:
- condition_sn=(factor_all_df['sn']==sn)
- factor_pick_df=factor_all_df.loc[condition_sn,:]#按照sn进行筛选
- factor_pick_df=factor_pick_df.sort_values(by='date')#按照日期排序
- factor_last_df=factor_pick_df.tail(1)#选择最后日期
- newest_sn_fct_df=newest_sn_fct_df.append(factor_last_df)#拼接到空df中
-
- #按照日期排序,只保留最近的一天,输出factor_unique_df,方法为replace。
- #本函数,每天需要运行一次,用于更新factor。
- # newest_sn_fct_df.to_sql(sn_newest_table_name,con=db_engine,chunksize=10000,\
- # if_exists='replace',index=False)
- return newest_sn_fct_df
- #使用factor和soc推荐剩余续驶里程
- def calDistFromFct(input_df):
- '''根据sn-time-soc-a0-a1-a2-a3-a4,使用factor正向计算计算VehElecRng。'''
- row_df=input_df.copy()
- soc=row_df['soc']#获取soc
- factor=[]
- factor.append(row_df['a4'])#0~20之间的factor
- factor.append(row_df['a3'])#20~40之间的factor
- factor.append(row_df['a2'])#40~60之间的factor
- factor.append(row_df['a1'])#60~80之间的factor
- factor.append(row_df['a0'])#80~100之间的factor
- gap=20
- yushu=soc%gap#余数部分
- zhengshu=soc//gap#整数部分
- i=0
- range=0
- while i<zhengshu:
- dur_factor=factor[i]#当前权重
- range+=dur_factor*gap#分段累加里程
- i=i+1
- if yushu>0.01:#避免soc=100时报错
- range=range+yushu*factor[zhengshu]#最后把余项对应的里程加上
- row_df['vehelecrng']=range#给VehElecRng列赋值
- return row_df
- #更新当前时间对应的里程,每5min调用一次
- def updtVehElecRng(db_qx, db_local, sn_newest_table_name='tb_sn_factor_newest', input_time='2021-07-29 12:01:00'):
- '''更新续驶里程,到tb_sn_factor_soc_range。
- 部署时设置每5min更新一次。
- '''
- #设置一个时间作为结束时间
- # current_time=datetime.datetime.now()
- current_time_raw=input_time#当前时间
- current_time=datetime.datetime.strptime(current_time_raw,'%Y-%m-%d %H:%M:%S')#字符串转时间
- #结束时间往前4min,59s,作为起始时间
- before6min_time_str=(current_time+datetime.timedelta(minutes=-4,seconds=-59)).strftime('%Y-%m-%d %H:%M:%S')#6min前
- before6min_time_str="'"+before6min_time_str+"'"
- current_time_str=current_time.strftime('%Y-%m-%d %H:%M:%S')#时间格式化为字符串
- current_time_str="'"+current_time_str+"'"
- #从drive_info里面读取,该时间段内的name,time,soc三列
- sql_cmd="select name,time,soc from drive_info where time between "+before6min_time_str+" and "+current_time_str
- # print(sql_cmd)
- range_soc_df = pd.read_sql(sql_cmd, db_qx)#使用read_sql方法查询qx数据库
- range_soc_df.rename(columns={'name':'sn'},inplace=True)#将name列重命名为sn列
- #任务2,从tb_sn_factor_newest里面读取最新的factor,获取距离今天最近的一个factor list
- sql_cmd_1="select sn,a0,a1,a2,a3,a4 from {}".format(sn_newest_table_name)
- # print(sql_cmd_1)
- sn_factor_newest_df_raw = pd.read_sql(sql_cmd_1, db_local)#使用read_sql方法查询qx数据库
- #任务3,将range_soc_df和sn_factor_newest_df_raw,双表合并成为一个新表格。
- sn_soc_factor_df=pd.merge(range_soc_df,sn_factor_newest_df_raw,how='left',on='sn')
- sn_soc_factor_df.fillna(1,inplace=True)#如果range_soc_df中有sn号,但sn_factor_newest_df_raw中没有。用1填充。
- # sn_soc_factor_df.head()
- #填充完成后,sn-time-soc-a0-a1-a2-a3-a4都已经齐全。
- #任务4,调用函数,将VehElecRng计算出来
- sn_soc_factor_range_df=pd.DataFrame([],columns=['sn','time','soc','a0','a1','a2','a3','a4','vehelecrng'])
- for index in sn_soc_factor_df.index.tolist():
- input_df=sn_soc_factor_df.loc[index,:]#挑选
- sn_soc_factor_range_row=calDistFromFct(input_df)#计算VehElecRng
- sn_soc_factor_range_df=sn_soc_factor_range_df.append(sn_soc_factor_range_row)#拼接
- ##任务5,将sn_soc_factor_range_df写入到tb_sn_factor_soc_range中,使用替换关系。
- # sn_soc_factor_range_df.to_sql(range_table_name,con=db_engine,chunksize=10000,\
- # if_exists='replace',index=False)
- return sn_soc_factor_range_df
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