Heartbeat

For each certain period, Neuron would send a heartbeat to the IIoT platform for aliveness. If IIoT platform can’t receive this heartbeat in certain time (e.g. 5 seconds), it may treat the Neuron as dead. In addition, heartbeat message may contain some useful information such as alarm status, running mode, communication status and data usage.

MQTT Topics for Neuron

Publish: Neuron/Heartbeat/%UUID%

MQTT Topics for IIoT platform

Subscribe: Neuron/Heartbeat/%UUID%

Neuron heartbeat syntax

{
  "tstp": 1581515618,
  "comm": "UP",
  "mach": "MANU",
  "mode": "ACTIVE",
  "mqcn": "MQCONNECT",
  "dalm": "NON-EXIST",
  "galm": "UNACKNOWLEDGE",
  "ngal": 4,
  "grow": [
    {
      "acat": "alarm",
      "astt": "OFF",
      "amod": "UNACKALARM",
      "atim": 1581513580,
      "alid": 1,
      "comt": "temp1@Temp (812) < low@Temp (800)"
    },
    {
      "acat": "alarm",
      "astt": "ON",
      "amod": "UNACKALARM",
      "atim": 1581515415,
      "alid": 3,
      "comt": "temp2@Temp (791) < low@Temp (800)"
    },
    {
      "acat": "critical",
      "astt": "ON",
      "amod": "UNACKALARM",
      "atim": 1581515415,
      "alid": 4,
      "comt": "temp3@Temp (864) > high@Temp (850)"
    },
    {
      "acat": "alarm",
      "astt": "OFF",
      "amod": "UNACKALARM",
      "atim": 1581513592,
      "alid": 5,
      "comt": "temp3@Temp (864) < low@Temp (800)"
    }
  ]
}