const messageId = "sts_" + Date.now();
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const timestamp = Date.now();
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//nameSpace：命名空间，需要改改为正确的命名空间代码
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const nameSpace = "Environment"
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const clientCode = "Data-It_XzOffice";
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//此处需改为正确的设备实体唯一ID
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const deviceId = "sensor.miaomiaoc_cn_blt_3_11a1sbr5k5o01_t2_temperature_p_2_1";
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const deviceType = "sensor";
|
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// 计算设备运行时间（从第一次启动开始）
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if (!context.get("startTime")) {
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context.set("startTime", timestamp);
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}
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const startTime = context.get("startTime");
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const uptime = timestamp - startTime;
|
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// 按照胜透物联网通信协议生成状态数据
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const statusMessage = {
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"messageId": messageId,
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"timestamp": timestamp,
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"clientCode": clientCode,
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"deviceId": deviceId,
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"deviceType": deviceType,
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"version": "1.0",
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"data": {
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"status": {
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"online": true,
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"lastHeartbeat": timestamp,
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"uptime": uptime
|
}
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}
|
};
|
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// 设置MQTT发布主题
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msg.topic = `${nameSpace}/${deviceType}/${deviceId}/status`;
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msg.payload = JSON.stringify(statusMessage);
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msg.qos = 0;
|
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node.log("设备状态心跳已发送，发布到主题: " + msg.topic);
|
|
return msg;
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