49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
# command_08.py
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import struct
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import logging
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class Command08:
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def build_08h_request(self, pile_id):
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frame = bytearray([0x4A, 0x58, 0x08]) # 帧头 + 命令
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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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# 数据域：时间标识 + 查询类型
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data = bytearray()
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current_time = bytearray([0x19, 0x03, 0x0A, 0x13, 0x14, 0x00]) # 示例：2025-03-10 13:14:00
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data.extend(current_time)
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data.append(0x01) # 查询类型（0x01: 实时状态）
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frame.extend(struct.pack('<H', len(data))) # 数据域长度
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frame.extend(data)
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# 计算校验码
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checksum = 0
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for b in frame[2:-1]:
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checksum ^= b
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frame.append(checksum)
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return frame
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def process_08h_response(self, data):
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logging.debug(f"处理08H响应: {data.hex().upper()}")
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if len(data) < 14:
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logging.warning("08H数据长度不足")
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return
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# 解析数据域
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data_start = 14
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data_len = struct.unpack('<H', data[12:14])[0]
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data_end = data_start + data_len
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if len(data) < data_end:
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logging.warning("08H数据域长度不匹配")
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return
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# 提取字段
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timestamp = data[data_start:data_start + 6]
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query_type = data[data_start + 6]
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# 转换为键值对
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parsed_data = {
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"timestamp": f"20{timestamp[0]:02X}-{timestamp[1]:02X}-{timestamp[2]:02X} {timestamp[3]:02X}:{timestamp[4]:02X}:{timestamp[5]:02X}",
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"query_type": f"0x{query_type:02X}"
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}
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logging.info(f"08H解析结果: {parsed_data}") |