==官网链接==
https://cumulocity.com/guides/device-sdk/rest/#overview
==概述==
启动阶段将设备连接到Cumulocity IoT,并更新清单中的设备数据。它还执行操作所需的清理任务。它包括以下步骤:
- 步骤0:请求设备凭据(如果尚未请求)。
- 步骤1:检查设备是否已经注册。
- 步骤2:如果没有,请在清单中创建设备,然后
- 步骤3:注册设备。
- 步骤4:如果是,请更新清单中的设备。
- 步骤5:发现子设备并在清单中创建或更新它们。
- 步骤6:完成需要重新启动的操作并订阅新操作。
循环阶段如下。它会不断更新清单,写入测量值,警报和事件并根据需要执行操作。可以将其视为设备关闭之前执行的设备“主循环”。该循环包括以下步骤:
==Authorization==
使用BasicAuth,输入用户名和密码。
==创建一个新设备==
POST:https://{tenant}.mciotextension.cn1.mindsphere-in.cn/inventory/managedObjects
Content-Type:application/vnd.com.nsn.cumulocity.managedObject+json
Accept:application/vnd.com.nsn.cumulocity.managedObject+json
Request Body:
{ "c8y_IsDevice" : {}, "name" : "RestDevice0408" }
Response Body:
{ "owner": "{username}", "additionParents": { "self": "https://{tenant}.mciotextension.cn1.mindsphere-in.cn/inventory/managedObjects/21802/additionParents", "references": [] }, "childDevices": { "self": "https://{tenant}.mciotextension.cn1.mindsphere-in.cn/inventory/managedObjects/21802/childDevices", "references": [] }, "childAssets": { "self": "https://{tenant}.mciotextension.cn1.mindsphere-in.cn/inventory/managedObjects/21802/childAssets", "references": [] }, "creationTime": "2020-04-08T15:15:57.302+08:00", "lastUpdated": "2020-04-08T15:15:57.302+08:00", "childAdditions": { "self": "https://{tenant}.mciotextension.cn1.mindsphere-in.cn/inventory/managedObjects/21802/childAdditions", "references": [] }, "name": "RestDevice0408", "assetParents": { "self": "https://{tenant}.mciotextension.cn1.mindsphere-in.cn/inventory/managedObjects/21802/assetParents", "references": [] }, "deviceParents": { "self": "https://{tenant}.mciotextension.cn1.mindsphere-in.cn/inventory/managedObjects/21802/deviceParents", "references": [] }, "self": "https://{tenant}.mciotextension.cn1.mindsphere-in.cn/inventory/managedObjects/21802", "id": "21802", "c8y_IsDevice": {} }
Postman截图
==注册设备==
创建新设备后,现在可以按照步骤1中所述将其与内置标识符相关联。这确保了该设备在下一次启动后就可以在Cumulocity IoT中找到自己。
如果不进行设备注册,后面也无法通过c8y_Serial获取设备。
POST:https://{tenant}.mciotextension.cn1.mindsphere-in.cn/identity/globalIds/21802/externalIds
Content-Type:application/vnd.com.nsn.cumulocity.externalId+json
Accept:application/vnd.com.nsn.cumulocity.externalId+json
Request Body:
{ "type" : "c8y_Serial", "externalId" : "serial202004081525" }
==更新设备==
PUT:https://{tenant}.mciotextension.cn1.mindsphere-in.cn/inventory/managedObjects/21802
Content-Type:application/vnd.com.nsn.cumulocity.managedObject+json
Request Body:
{ "c8y_Software": { "pi-driver": "pi-driver-3.4.6.jar", "pi4j-gpio-extension": "pi4j-gpio-extension-0.0.5.jar" } }
Postman截图:
==发送测量数据==
POST:https://{tenant}.mciotextension.cn1.mindsphere-in.cn/measurement/measurements
Content-Type:application/vnd.com.nsn.cumulocity.measurement+json
Request Body:
{ "source": { "id": "21802" }, "time": "2020-04-08T15:52:40.152", "type": "mytype", "MyMeasurement": { "AR_TEST_VAR1": { "value": 15, "unit": "dBm" }, "AR_TEST_VAR2": { "value": 25, "unit": "%" }, "AR_TEST_VAR3": { "value": 30, "unit": "。" } } }
Postman截图:
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