BatchUpdateDetector example for an HVAC system in AWS IoT Events

In this example, BatchUpdateDetector is used to change operational parameters for a working detector instance.

Efficient HVAC system management often requires batch updates to multiple detectors. This section demonstrates how to use AWS IoT Events's batch update feature for detectors. Learn to simultaneously modify multiple control parameters, update threshold values, so that you can adjust response actions across a fleet of devices, improving your ability to manage large-scale systems effectively.

CLI command used:

aws iotevents-data batch-update-detector --cli-input-json file://areaDM.BUD.json

File: areaDM.BUD.json

{
  "detectors": [
    {
      "messageId": "0001",
      "detectorModelName": "areaDetectorModel",
      "keyValue": "Area51",
      "state": {
        "stateName": "start",
        "variables": [
          {
            "name": "desiredTemperature",
            "value": "22"
          },
          {
            "name": "averageTemperature",
            "value": "22"
          },
          {
            "name": "allowedError",
            "value": "1.0"
          },
          {
            "name": "rangeHigh",
            "value": "30.0"
          },
          {
            "name": "rangeLow",
            "value": "15.0"
          },
          {
            "name": "anomalousHigh",
            "value": "60.0"
          },
          {
            "name": "anomalousLow",
            "value": "0.0"
          },
          {
            "name": "sensorCount",
            "value": "12"
          },
          {
            "name": "noDelay",
            "value": "true"
          },
          {
            "name": "goodToGo",
            "value": "true"
          },
          {
            "name": "sensorId",
            "value": "0"
          },
          {
            "name": "reportedTemperature",
            "value": "0.1"
          },
          {
            "name": "resetMe",
            "value": "true"
          }
        ],
        "timers": [
        ]
      }
    }
  ]
}

Response:

{
    An error occurred (InvalidRequestException) when calling the BatchUpdateDetector operation: Number of variables in the detector exceeds the limit 10
}