我将此dtdl模型上传到IoT即插即用v0.15.4.0中的本地文件夹（之前版本的行为相同）：
{
"@id": "dtmi:com:sergio:devkit;1",
"@type": "Interface",
"@context": [
"dtmi:dtdl:context;2"
],
"displayName": "Machine Part -v1",
"description": "Machine Part data",
"contents": [
{
"@type": "Property",
"name": "telemetryInterval",
"displayName": "telemetryInterval",
"description": "The time interval of this data",
"schema": "double",
"writable": true
},
{
"@type": "Property",
"name": "PartId",
"displayName": "PartId",
"description": "The unique id of the machine part",
"writable": true,
"schema": "string"
},
{
"@type": "Property",
"name": "Alert",
"displayName": "Alert",
"description": "whether or not this machine part needs maintenance",
"writable": true,
"schema": "boolean"
},
{
"@type": "Property",
"name": "ledState",
"displayName": "LED state",
"description": "Returns the current state of the onboard LED.",
"writable": true,
"schema": "boolean"
},
{
"@type": "Telemetry",
"name": "Description",
"schema": "string"
},
{
"@type": "Telemetry",
"name": "Code",
"schema": "integer"
},
{
"@type": "Telemetry",
"name": "Temperature",
"displayName": "Temperature",
"schema": "double"
},
{
"@type": "Telemetry",
"name": "Humidity",
"displayName": "Humidity",
"schema": "double"
},
{
"@type": "Telemetry",
"name": "pressure",
"displayName": "Pressure",
"schema": "double"
},
{
"@type": "Telemetry",
"name": "magnetometerX",
"displayName": "Magnetometer X / mgauss",
"schema": "double"
},
{
"@type": "Telemetry",
"name": "magnetometerY",
"displayName": "Magnetometer Y / mgauss",
"schema": "double"
},
{
"@type": "Telemetry",
"name": "magnetometerZ",
"displayName": "Magnetometer Z / mgauss",
"schema": "double"
},
{
"@type": "Telemetry",
"name": "accelerometerX",
"displayName": "Accelerometer X",
"schema": "double"
},
{
"@type": "Telemetry",
"name": "accelerometerY",
"displayName": "Accelerometer Y",
"schema": "double"
},
{
"@type": "Telemetry",
"name": "accelerometerZ",
"displayName": "Accelerometer Z",
"schema": "double"
},
{
"@type": "Telemetry",
"name": "gyroscopeX",
"displayName": "Gyroscope X",
"schema": "double"
},
{
"@type": "Telemetry",
"name": "gyroscopeY",
"displayName": "Gyroscope Y",
"schema": "double"
},
{
"@type": "Telemetry",
"name": "gyroscopeZ",
"displayName": "Gyroscope Z",
"schema": "double"
}
]}
我的期望是，因为属性ledState和警报属性是可写的，这些应该是报告和所需的属性。但是，Azure门户中的物联网集线器设备（见下文）显示它们的方式不同，我不知道为什么。我如何将上传到物联网P&P的DTDL模型中的属性设置为报告或所需？
{
"deviceId": "mymxchip",
"etag": "AAAAAAAAAAk=",
"deviceEtag": "NDU1NDk0NDM4",
"status": "enabled",
"statusUpdateTime": "0001-01-01T00:00:00Z",
"connectionState": "Connected",
"lastActivityTime": "2023-01-09T07:26:48.611708Z",
"cloudToDeviceMessageCount": 0,
"authenticationType": "sas",
"x509Thumbprint": {
"primaryThumbprint": null,
"secondaryThumbprint": null
},
"modelId": "dtmi:com:sergio:devkit;1",
"version": 164,
"properties": {
"desired": {
"telemetryInterval": 5,
"Alert": true,
"$metadata": {
"$lastUpdated": "2023-01-08T07:27:01.9659284Z",
"$lastUpdatedVersion": 9,
"telemetryInterval": {
"$lastUpdated": "2023-01-08T06:54:11.9502921Z",
"$lastUpdatedVersion": 8
},
"Alert": {
"$lastUpdated": "2023-01-08T07:27:01.9659284Z",
"$lastUpdatedVersion": 9
}
},
"$version": 9
},
"reported": {
"deviceInformation": {
"__t": "c",
"manufacturer": "MXCHIP",
"model": "AZ3166",
"swVersion": "1.0.0",
"osName": "Azure RTOS",
"processorArchitecture": "Arm Cortex M4",
"processorManufacturer": "STMicroelectronics",
"totalStorage": 1024,
"totalMemory": 128
},
"ledState": false,
"telemetryInterval": {
"ac": 200,
"av": 1,
"value": 5
},
"$metadata": {
"$lastUpdated": "2023-01-09T07:28:26.0068306Z",
"deviceInformation": {
"$lastUpdated": "2023-01-09T07:28:25.4599426Z",
"__t": {
"$lastUpdated": "2023-01-09T07:28:25.4599426Z"
},
"manufacturer": {
"$lastUpdated": "2023-01-09T07:28:25.4599426Z"
},
"model": {
"$lastUpdated": "2023-01-09T07:28:25.4599426Z"
},
"swVersion": {
"$lastUpdated": "2023-01-09T07:28:25.4599426Z"
},
"osName": {
"$lastUpdated": "2023-01-09T07:28:25.4599426Z"
},
"processorArchitecture": {
"$lastUpdated": "2023-01-09T07:28:25.4599426Z"
},
"processorManufacturer": {
"$lastUpdated": "2023-01-09T07:28:25.4599426Z"
},
"totalStorage": {
"$lastUpdated": "2023-01-09T07:28:25.4599426Z"
},
"totalMemory": {
"$lastUpdated": "2023-01-09T07:28:25.4599426Z"
}
},
"ledState": {
"$lastUpdated": "2023-01-09T07:28:25.7411971Z"
},
"telemetryInterval": {
"$lastUpdated": "2023-01-09T07:28:26.0068306Z",
"ac": {
"$lastUpdated": "2023-01-09T07:28:26.0068306Z"
},
"av": {
"$lastUpdated": "2023-01-09T07:28:26.0068306Z"
},
"value": {
"$lastUpdated": "2023-01-09T07:28:26.0068306Z"
}
}
},
"$version": 155
}
},
"capabilities": {
"iotEdge": false
}}
1条答案
按热度按时间mjqavswn1#
DTDL可写属性在设备孪生中同时显示为报告属性和所需属性，这是正确的。但是，这取决于设备的行为。
如果您使用服务API设置所需属性，则会更新设备孪生中的所需属性值。然后，设备应在接收并处理所需属性时发送Ack-在上面的示例中，看起来设备已对
telemetryInterval属性执行了此操作。设备尚未确认Alert所需属性更新。当设备发送报告属性时，将使用设备发送的值更新设备孪生。在上例中，设备已发送
deviceInformation、ledState和telemetryInterval报告属性。发送telemetryInterval是为了响应所需属性。您可以在此处找到更多详细信息：