293 lines
11 KiB
Python
293 lines
11 KiB
Python
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import struct
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import logging
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import binascii
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from datetime import datetime
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class Command2122:
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def __init__(self):
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self.command_21 = 0x21 # 充电启动结果命令
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self.command_22 = 0x22 # 平台回复启动充电结果命令
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def parse_21h_charging_start_result(self, data):
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"""
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解析21H充电启动结果命令
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:param data: 完整的21H命令报文
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:return: 解析后的字典或None
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"""
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try:
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# 验证基本帧格式
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if len(data) < 14 or data[0:2] != b'JX' or data[2] != 0x21:
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logging.warning(f"21H命令帧格式不正确，原始报文: {binascii.hexlify(data)}")
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return None
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# 打印完整的原始报文以便调试
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print(f"完整原始报文: {binascii.hexlify(data)}")
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# 提取桩号
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pile_id_bytes = data[3:11]
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# 提取时间标识
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time_bytes = data[14:20]
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year = time_bytes[0] + 2000
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month, day, hour, minute, second = time_bytes[1:6]
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timestamp = f"{year:04d}-{month:02d}-{day:02d} {hour:02d}:{minute:02d}:{second:02d}"
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current_index = 22
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# 解析充电订单号
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charging_order_number = data[current_index:current_index + 32].decode('ascii').rstrip('\x00')
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current_index += 32
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# 解析用户ID
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user_id = data[current_index:current_index + 32].decode('ascii').rstrip('\x00')
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current_index += 32
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# 解析用户类型
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user_type = struct.unpack("<H", data[current_index:current_index + 2])[0]
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current_index += 2
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# 解析车牌号
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vehicle_number = data[current_index:current_index + 9].decode('ascii').rstrip('\x00')
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current_index += 9
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# 解析控制方式
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control_mode = data[current_index]
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current_index += 1
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# 解析控制参数
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control_param = struct.unpack("<I", data[current_index:current_index + 4])[0]
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current_index += 4
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# 解析充电模式
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charging_mode = data[current_index]
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current_index += 1
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# 解析充电桩类型
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pile_type = data[current_index]
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current_index += 1
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# 解析启动结果
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start_result = data[current_index]
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current_index += 1
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# 解析启动失败原因
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start_failure_reason = struct.unpack("<H", data[current_index:current_index + 2])[0]
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current_index += 2
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# 解析充电起始时间
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start_charging_time_bytes = data[current_index:current_index + 6]
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start_charging_time = datetime(
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start_charging_time_bytes[0] + 2000,
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start_charging_time_bytes[1],
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start_charging_time_bytes[2],
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start_charging_time_bytes[3],
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start_charging_time_bytes[4],
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start_charging_time_bytes[5]
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)
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current_index += 6
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# 解析充电起始电量
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start_charging_amount = struct.unpack("<I", data[current_index:current_index + 4])[0] / 100 # 0.01kWh
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current_index += 4
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# 解析绝缘检测电压
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insulation_voltage = struct.unpack("<H", data[current_index:current_index + 2])[0] / 10 # 0.1V
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current_index += 2
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# 打印解析结果
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print("\n21H充电启动结果命令解析结果:")
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print(f"桩号: {pile_id_bytes.hex()}")
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print(f"时间标识: {timestamp}")
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print(f"充电订单号: {charging_order_number}")
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print(f"用户ID: {user_id}")
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print(f"用户类型: {self.get_user_type_text(user_type)}")
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print(f"车牌号: {vehicle_number}")
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print(f"控制方式: {self.get_control_mode_text(control_mode)}")
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print(f"控制参数: {control_param}")
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print(f"充电模式: {self.get_charging_mode_text(charging_mode)}")
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print(f"充电桩类型: {self.get_pile_type_text(pile_type)}")
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print(f"启动结果: {self.get_start_result_text(start_result)}")
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print(f"启动失败原因: {self.get_start_failure_reason_text(start_failure_reason)}")
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print(f"充电起始时间: {start_charging_time}")
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print(f"充电起始电量: {start_charging_amount}kWh")
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print(f"绝缘检测电压: {insulation_voltage}V")
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return {
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"pile_id": pile_id_bytes.hex(),
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"timestamp": timestamp,
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"charging_order_number": charging_order_number,
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"user_id": user_id,
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"user_type": self.get_user_type_text(user_type),
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"vehicle_number": vehicle_number,
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"control_mode": self.get_control_mode_text(control_mode),
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"control_param": control_param,
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"charging_mode": self.get_charging_mode_text(charging_mode),
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"pile_type": self.get_pile_type_text(pile_type),
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"start_result": self.get_start_result_text(start_result),
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"start_failure_reason": self.get_start_failure_reason_text(start_failure_reason),
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"start_charging_time": start_charging_time,
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"start_charging_amount": start_charging_amount,
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"insulation_voltage": insulation_voltage
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}
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except Exception as e:
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logging.error(f"解析21H命令失败: {str(e)}")
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logging.error(f"原始报文: {binascii.hexlify(data)}")
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return None
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def generate_22h_charging_start_response(self, pile_id_bytes):
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"""
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生成22H平台回复启动充电结果命令
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:param pile_id_bytes: 充电桩桩号字节
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:return: 22H响应报文
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"""
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try:
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# 构建帧
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frame = bytearray()
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frame.extend(b'JX') # 帧起始标志
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frame.append(self.command_22) # 命令码
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frame.extend(pile_id_bytes) # 桩号
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frame.append(0x01) # 数据加密方式
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# 构建数据域
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data = bytearray()
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# 时间标识（当前时间）
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now = datetime.now()
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data.extend(struct.pack("<BBBBBB",
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now.year - 2000, now.month, now.day,
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now.hour, now.minute, now.second))
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# 数据域长度
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frame.extend(struct.pack("<H", len(data)))
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# 加入数据域
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frame.extend(data)
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# 计算校验码
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check = 0
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for b in frame[2:]:
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check ^= b
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frame.append(check)
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print("22H充电启动结果响应数据构建成功:")
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print(f"数据内容: {frame.hex()}")
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print(f"数据长度: {len(frame)}字节")
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return bytes(frame)
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except Exception as e:
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logging.error(f"生成22H充电启动结果响应出错: {str(e)}")
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return None
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def process_21h_charging_start_result(self, data):
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"""
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处理21H充电启动结果命令
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:param data: 完整的21H命令报文
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:return: 是否成功处理
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"""
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try:
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parsed_data = self.parse_21h_charging_start_result(data)
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if parsed_data is None:
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logging.warning("21H命令解析失败")
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return False
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# 记录充电启动结果信息日志
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logging.info(
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f"收到桩号 {parsed_data['pile_id']} 的充电启动结果: "
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f"订单号 {parsed_data['charging_order_number']}, "
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f"启动结果 {parsed_data['start_result']}"
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)
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return True
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except Exception as e:
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logging.error(f"处理21H命令出错: {str(e)}")
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return False
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def get_user_type_text(self, user_type):
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"""解析用户类型"""
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type_map = {
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1: "超级卡",
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2: "在线卡",
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3: "离线卡",
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5: "本地管理员",
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6: "VIN鉴权"
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}
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return type_map.get(user_type, f"未知类型 (0x{user_type:02X})")
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def get_control_mode_text(self, mode):
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"""解析控制方式"""
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mode_map = {
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1: "定时长充",
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2: "定电量充",
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3: "定金额充",
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4: "自动充满"
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}
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return mode_map.get(mode, f"未知方式 (0x{mode:02X})")
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def get_charging_mode_text(self, mode):
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"""解析充电模式"""
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mode_map = {
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1: "普通充电",
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2: "轮充",
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3: "大功率",
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4: "超级充",
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5: "电池维护",
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6: "柔性充"
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}
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return mode_map.get(mode, f"未知模式 (0x{mode:02X})")
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def get_pile_type_text(self, pile_type):
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"""解析充电桩类型"""
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type_map = {
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1: "交流",
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2: "直流"
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}
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return type_map.get(pile_type, f"未知类型 (0x{pile_type:02X})")
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def get_start_result_text(self, result):
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"""解析启动结果"""
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result_map = {
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1: "成功",
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2: "失败"
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}
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return result_map.get(result, f"未知结果 (0x{result:02X})")
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def get_start_failure_reason_text(self, reason):
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"""解析启动失败原因"""
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reason_map = {
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1: "设备故障",
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2: "充电枪使用中",
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3: "充电设备已被预约",
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4: "不允许充电",
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5: "参数不支持",
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6: "其他原因"
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}
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return reason_map.get(reason, f"未知原因 (0x{reason:04X})")
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# 测试用例
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if __name__ == "__main__":
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# 21H命令测试报文
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test_21_data = bytes.fromhex(
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"4A 58 21 03 17 66 56 11 36 06 37 01 B3 00 19 01 09 0B 28 1D 01 31 38 37 37 31 39 38 35 39 35 39 37 30 35 39 36 38 36 00 00 00 00 00 00 00 00 00 00 00 00 00 38 34 30 34 33 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 F4 01 00 00 01 02 01 00 00 19 01 09 0B 27 37 D4 6C 68 01 00 00 00 00 00 00 00 00 00 03 D0 11 26 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 4C 5A 47 4A 4C 4D 34 34 35 50 58 31 31 34 35 33 37 01 01 00 00 00 00 00 00 77 01 DC 05 03 0B 60 1B 73 DA 02 E8 18 E8")
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# 22H命令测试报文
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test_22_data = bytes.fromhex("4A 58 22 03 17 66 56 11 36 06 37 01 07 00 19 01 09 0B 28 20 01 05")
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parser = Command2122()
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# 测试解析21H命令
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parser.process_21h_charging_start_result(test_21_data)
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# 测试生成22H响应
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pile_id_bytes = bytes.fromhex("0317665611360637")
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response = parser.generate_22h_charging_start_response(pile_id_bytes)
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print("\n22H充电启动结果响应:")
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print(response.hex())
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