182 lines
6.0 KiB
Python
182 lines
6.0 KiB
Python
import struct
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import logging
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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 # 启动充电结果
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self.command_22 = 0x22 # 响应启动充电结果
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def parse_21h(self, data):
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"""解析21H启动充电结果命令"""
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try:
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print("\n开始解析21H启动充电结果命令...")
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print(f"接收数据: {data.hex().upper()}")
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# 基础验证
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if len(data) < 14 or data[0:2] != b'JX' or data[2] != self.command_21:
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logging.warning("21H命令帧格式不正确")
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return None
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# 解析数据
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pile_id = data[3:11] # 桩号
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encrypt_mode = data[11] # 加密方式
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data_len = struct.unpack("<H", data[12:14])[0] # 数据长度
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# 解析数据域
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data_field = data[14:14 + data_len]
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# 解析时间标识
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time_bytes = data_field[0:6]
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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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# 解析枪号
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gun_no = data_field[6]
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# 解析充电订单号(32字节ASCII)
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order_no = data_field[7:39].decode('ascii').rstrip('\x00')
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# 解析用户ID(32字节ASCII)
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user_id = data_field[39:71].decode('ascii').rstrip('\x00')
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# 解析用户类型(2字节)
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user_type = struct.unpack("<H", data_field[71:73])[0]
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# 解析车牌号(9字节)
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plate_no = data_field[73:82].decode('ascii').rstrip('\x00')
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# 继续解析其他字段...
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result = {
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"pile_id": pile_id,
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"timestamp": timestamp,
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"gun_no": gun_no,
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"order_no": order_no,
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"user_id": user_id,
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"user_type": user_type,
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"plate_no": plate_no
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}
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print("\n解析结果:")
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print(f"桩号: {pile_id.hex().upper()}")
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print(f"时间标识: {timestamp}")
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print(f"枪号: {gun_no}")
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print(f"订单号: {order_no}")
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print(f"用户ID: {user_id}")
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print(f"用户类型: {user_type}")
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print(f"车牌号: {plate_no}")
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return result
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except Exception as e:
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logging.error(f"解析21H启动充电结果命令失败: {str(e)}")
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print(f"解析失败: {str(e)}")
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return None
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def build_22h_response(self, pile_id, gun_no):
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"""构建22H响应"""
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try:
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print("\n构建22H响应...")
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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22H
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frame.extend(pile_id) # 桩号
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frame.append(0x01) # 数据加密方式(不加密)
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# 构建数据域
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data = bytearray()
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# 添加时间标识
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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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# 添加枪号
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data.append(gun_no)
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# 计算数据长度
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frame.extend(struct.pack("<H", len(data))) # 数据长度
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# 添加数据域
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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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response = bytes(frame)
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print(f"响应数据: {response.hex().upper()}")
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return response
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except Exception as e:
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logging.error(f"构建22H响应失败: {str(e)}")
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print(f"构建响应失败: {str(e)}")
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return None
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def process_and_respond(self, received_data, sock):
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"""处理收到的21H命令并回复22H"""
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try:
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print("\n处理充电启动结果命令...")
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# 解析接收到的21H命令
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parsed = self.parse_21h(received_data)
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if not parsed:
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return False
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# 构建22H响应
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response = self.build_22h_response(
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parsed["pile_id"],
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parsed["gun_no"]
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)
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if not response:
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return False
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# 发送响应
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if sock and hasattr(sock, 'send'):
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sock.send(response)
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print("充电启动结果响应发送成功")
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return True
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except Exception as e:
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logging.error(f"处理充电启动结果命令失败: {str(e)}")
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print(f"处理失败: {str(e)}")
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return False
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def test_charge_result():
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"""测试充电启动结果命令处理"""
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print("开始测试充电启动结果命令处理...")
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# 创建处理器
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handler = Command2122()
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# 测试数据 - 使用实际收到的21H数据(移除所有空格)
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test_data = bytes.fromhex("4A58210317665611360637 01B30019010 90C161201303331373636353631313336303633373235303130393132323134333831353465363961323130330000000000000000000000000000000000000000020000000000000000000000000000000000040000000001020100001901090C152C8B6F680100000000000000000003D011261800000000000000000000000000004C5A474A4C4D3434355058313134353337010100000000007701DC05030B601B73E402FF186E".replace(" ", ""))
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print("\n测试数据:")
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print(f"21H数据: {test_data.hex().upper()}")
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# 创建模拟socket
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class MockSocket:
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def send(self, data):
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print(f"\n模拟发送响应数据:")
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print(f"22H数据: {data.hex().upper()}")
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mock_sock = MockSocket()
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# 测试完整处理流程
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result = handler.process_and_respond(test_data, mock_sock)
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print(f"\n最终处理结果: {'成功' if result else '失败'}")
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if __name__ == "__main__":
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test_charge_result() |