import paho.mqtt.client as mqtt import json import logging import taosrest from datetime import datetime # 配置日志 logging.basicConfig( filename='charge_jiuxing.log', level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s', encoding='utf-8' ) class ChargeJiuxingParser: def __init__(self, mqtt_host="123.6.102.119", mqtt_port=1883, mqtt_username="emqx_test", mqtt_password="emqx_test", tdengine_url="http://123.6.102.119:6041", tdengine_user="root", tdengine_password="taosdata"): # MQTT 配置 self.mqtt_client = mqtt.Client(client_id="ChargeJiuxingParser", protocol=mqtt.MQTTv311, callback_api_version=mqtt.CallbackAPIVersion.VERSION2) self.mqtt_client.username_pw_set(mqtt_username, mqtt_password) self.mqtt_client.on_connect = self.on_connect self.mqtt_client.on_message = self.on_message self.mqtt_host = mqtt_host self.mqtt_port = mqtt_port self.connected = False # TDengine 配置 self.tdengine_url = tdengine_url self.tdengine_user = tdengine_user self.tdengine_password = tdengine_password self.tdengine_conn = None def connect(self): """连接 MQTT 和 TDengine""" # 连接 MQTT try: self.mqtt_client.connect(self.mqtt_host, self.mqtt_port, 60) self.mqtt_client.loop_start() logging.info("Connected to MQTT broker") except Exception as e: logging.error(f"MQTT connection error: {str(e)}") raise # 连接 TDengine try: self.tdengine_conn = taosrest.connect( url=self.tdengine_url, user=self.tdengine_user, password=self.tdengine_password, database="tms_design" ) logging.info("Connected to TDengine via REST") except Exception as e: logging.error(f"TDengine connection error: {str(e)}") raise def on_connect(self, client, userdata, flags, rc, properties=None): if rc == 0: self.connected = True self.mqtt_client.subscribe("hejin/charging/log", qos=1) logging.info("Subscribed to hejin/charging/log") else: logging.error(f"Failed to connect to MQTT broker with code: {rc}") def on_message(self, client, userdata, msg, properties=None): """处理接收到的 MQTT 消息""" try: payload = msg.payload.decode('utf-8') data = json.loads(payload) logging.info(f"Received message: {data}") # 解析报文并存储 sql = self.parse_and_generate_sql(data) if sql: self.tdengine_conn.execute(sql) logging.info(f"Inserted into TDengine: {sql}") except Exception as e: logging.error(f"Error processing message: {str(e)}") def hex_to_ascii(self, hex_str): """将 HEX 字符串转为 ASCII""" try: return bytes.fromhex(hex_str).decode('ascii').strip('\x00') except: return "" def parse_bcd_time(self, bcd): """解析 BCD 码时间（格式：YYMMDDHHMMSS）""" try: year = f"20{bcd[0:2]}" # 假设 19 表示 2019 month = bcd[2:4] day = bcd[4:6] hour = bcd[6:8] minute = bcd[8:10] second = bcd[10:12] return f"{year}-{month}-{day}T{hour}:{minute}:{second}+08:00" except: return None def parse_and_generate_sql(self, data): """解析报文并生成插入 SQL""" hex_data = data[3].replace(" ", "") # 移除空格 pile_id = data[4] # 桩号 time = data[2].replace(" ", "T") + "+08:00" # 时间 # 提取基本字段 if len(hex_data) < 30: # 最小长度：14字节（HEX表示为28字符）+校验码(2) logging.warning(f"数据包长度不足: {hex_data}") return None company = hex_data[0:4] # 4A58 if company != "4A58": logging.warning(f"无效帧起始: {company}") return None cmd = hex_data[4:6] # 命令码 length_str = hex_data[24:28] # 数据域长度 length = int(length_str, 16) * 2 # HEX字符数 data_domain = hex_data[28:28 + length] if length > 0 else "" # 从桩号提取信息 operator_id = pile_id[0:4] # 运营商编号 station_id = pile_id[6:12] # 站点编号 charger_no = pile_id[12:16] # 站内桩地址（作为充电桩编号） # 初始化默认值 battery_bun_id = "unknown" org_code = "unknown" merchant_id = "unknown" chg_run_status = 0 # 默认待机 chg_fau_lts = "" charger_name = "unknown" charger_power = 0.0 created_at = time updated_at = time battery_bun_no = 0 # 根据命令码解析数据域 if cmd == "0B": # 平台心跳 if len(data_domain) >= 12: # 6字节时间 + 1字节超时次数 time_str = data_domain[0:12] # BCD码时间 parsed_time = self.parse_bcd_time(time_str) if parsed_time: created_at = parsed_time updated_at = parsed_time chg_run_status = 0 # 心跳表示待机 elif cmd == "25": # 充电信息（表 3.9.9） if len(data_domain) >= 92: # 确保数据域足够长 # 充电用户编号（字节 0-15，ASCII） battery_bun_id = self.hex_to_ascii(data_domain[0:32]) # 充电电压（字节 16-17，HEX，单位 0.1V） charger_power = int(data_domain[32:36], 16) / 10.0 # 电压作为功率（示例） # 充电电流（字节 18-19，HEX，单位 0.1A） current = int(data_domain[36:40], 16) / 10.0 # 充电电量（字节 20-21，HEX，单位 0.01kWh） energy = int(data_domain[40:44], 16) / 100.0 # SOC（字节 22，HEX，单位 %） soc = int(data_domain[44:46], 16) # 故障状态（字节 23-26，HEX） chg_fau_lts = data_domain[46:54] # 充电状态（字节 27，HEX） charge_status = int(data_domain[54:56], 16) # 映射充电状态 if charge_status == 0: chg_run_status = 0 # 待机 elif charge_status == 1: chg_run_status = 1 # 充电中 elif charge_status == 2: chg_run_status = 2 # 充电结束 elif charge_status == 3: chg_run_status = 3 # 充电异常 else: chg_run_status = 4 # 故障 else: logging.info(f"未处理的命令码: {cmd}") return None # 跳过未处理的命令 # 构建插入 SQL sql = ( "INSERT INTO charge_jiuxing (charger_no, battery_bun_id, station_id, operator_id, org_code, " "merchant_id, chg_run_status, chg_fau_lts, charger_name, charger_power, created_at, updated_at, battery_bun_no) VALUES " f"('{charger_no}', '{battery_bun_id}', '{station_id}', '{operator_id}', '{org_code}', " f"'{merchant_id}', {chg_run_status}, '{chg_fau_lts}', '{charger_name}', {charger_power}, " f"'{created_at}', '{updated_at}', {battery_bun_no})" ) return sql def run(self): """启动程序""" self.connect() try: while True: pass # 保持程序运行 except KeyboardInterrupt: self.mqtt_client.loop_stop() self.mqtt_client.disconnect() if self.tdengine_conn: self.tdengine_conn.close() logging.info("Program stopped") if __name__ == "__main__": parser = ChargeJiuxingParser( mqtt_host="123.6.102.119", mqtt_port=1883, mqtt_username="emqx_test", mqtt_password="emqx_test", tdengine_url="http://localhost:6041", # 根据实际环境修改 tdengine_user="root", tdengine_password="taosdata" ) parser.run()