Fiware IoT代理UL：通过mqtt将command_value发送到设备

时间：2019-06-03 12:55:44

标签： fiware fiware-orion

我正在使用IoT代理进行超轻量级传输，我想将命令（包括特定值）发送回我的IoT设备。如果我按照智能门here的示例进行操作，则可以发送以下内容：

curl -iX PATCH \
  'http://localhost:1026/v2/entities/urn:ngsi-ld:pysense:002/attrs' \
  -H 'Content-Type: application/json' \
  -H 'fiware-service: openiot' \
  -H 'fiware-servicepath: /' \
  -d '{
    "color": {
    "type" : "command",
    "value" : "100"
    }
  }'

固件发布有效载荷“ urn：ngsi-ld：pysense：002 @ color |”给我的经纪人。但是我也希望传递“ 100”的值吗？

我还在Git上找到了this有关mqtt命令的文档。但是那个没有指定将其发送到哪里以及如何发送？我想它使用与this请求相同的URL：http://localhost:4041/v1/updateContext ??这是最新的发出命令的方式吗？

我正在使用Orion-ld和iotagent-ul：1.8.0。

有人可以帮助我将“颜色”的价值也纳入mqtt消息吗？

谢谢！

EDIT1：

我刚刚尝试过orion：2.2.0并重新注册了命令，如下所示：

{
  "description": "Setting LED",
  "dataProvided": {
    "entities": [
      {
        "id": "urn:ngsi-ld:pysense:002", "type": "pysense"
      }
    ],
    "attrs": ["color", "brightness"]
  },
  "provider": {
    "http": {"url": "http://orion:1026/v2"},
    "legacyForwarding": true
  }
}

如果我尝试发送orion-log命令，请输入以下文本发疯（继续滚动）：

fiware-orion   | INFO@06:42:33  logMsg.h[1844]: Starting transaction from 172.18.1.1:35800/v2/entities/urn:ngsi-ld:pysense:002/attrs
fiware-orion   | INFO@06:42:33  rest.cpp[885]: Service Path 0: '/dresden'
fiware-orion   | INFO@06:42:33  connectionOperations.cpp[239]: Database Operation Successful (count: { _id.id: "urn:ngsi-ld:pysense:002", _id.servicePath: { $in: [ /^/dresden$/ ] } })
fiware-orion   | INFO@06:42:33  connectionOperations.cpp[94]: Database Operation Successful (query: { _id.id: "urn:ngsi-ld:pysense:002", _id.servicePath: { $in: [ /^/dresden$/ ] } })
fiware-orion   | INFO@06:42:33  connectionOperations.cpp[94]: Database Operation Successful (query: { $or: [ { entities.id: "urn:ngsi-ld:pysense:002", $or: [ { entities.type: "pysense" }, { entities.type: { $exists: false } } ], entities.isPattern: "false", entities.isTypePattern: { $ne: true }, expiration: { $gt: 1559716953 }, status: { $ne: "inactive" }, servicePath: { $in: [ /^$|^/#$|^/dresden/#$|^/dresden$/, null ] } }, { entities.isPattern: "true", entities.isTypePattern: { $ne: true }, expiration: { $gt: 1559716953 }, status: { $ne: "inactive" }, servicePath: { $in: [ /^$|^/#$|^/dresden/#$|^/dresden$/, null ] }, $where: function(){for (var i=0; i < this.entities.length; i++) {if (this.enti... }, { entities.isPattern: "false", entities.isTypePattern: true, expiration: { $gt: 1559716953 }, status: { $ne: "inactive" }, servicePath: { $in: [ /^$|^/#$|^/dresden/#$|^/dresden$/, null ] }, $where: function(){for (var i=0; i < this.entities.length; i++) {if (this.enti... }, { entities.isPattern: "true", entities.isTypePattern: true, expiration: { $gt: 1559716953 }, status: { $ne: "inactive" }, servicePath: { $in: [ /^$|^/#$|^/dresden/#$|^/dresden$/, null ] }, $where: function(){for (var i=0; i < this.entities.length; i++) {if (this.enti... } ] })
fiware-orion   | INFO@06:42:33  connectionOperations.cpp[177]: Database Operation Successful (query: { query: { $or: [ { contextRegistration.entities: { $in: [ { id: "urn:ngsi-ld:pysense:002", type: "pysense" }, { type: "pysense", id: "urn:ngsi-ld:pysense:002" } ] } }, { contextRegistration.entities.id: { $in: [] } } ], expiration: { $gt: 1559716953 }, contextRegistration.attrs.name: { $in: [ "color" ] }, servicePath: { $in: [ /^/dresden$/ ] } }, orderby: { _id: 1 } })
fiware-orion   | ERROR@06:42:33  postUpdateContext.cpp[553]: Internal Error (attribute 'color' not found)
fiware-orion   | INFO@06:42:33  logMsg.h[1844]: Starting transaction to http://orion:1026/v1/updateContext
fiware-orion   | INFO@06:42:33  httpRequestSend.cpp[592]: Sending message 8 to HTTP server: sending message of 433 bytes to HTTP server
fiware-orion   | INFO@06:42:33  logMsg.h[1844]: Starting transaction from 172.18.1.7:46738/v1/updateContext
fiware-orion   | INFO@06:42:33  rest.cpp[885]: Service Path 0: '/dresden'
fiware-orion   | INFO@06:42:33  connectionOperations.cpp[94]: Database Operation Successful (query: { _id.id: "urn:ngsi-ld:pysense:002", _id.type: "pysense", _id.servicePath: { $in: [ /^/dresden$/ ] } })
fiware-orion   | INFO@06:42:34  connectionOperations.cpp[94]: Database Operation Successful (query: { $or: [ { entities.id: "urn:ngsi-ld:pysense:002", $or: [ { entities.type: "pysense" }, { entities.type: { $exists: false } } ], entities.isPattern: "false", entities.isTypePattern: { $ne: true }, expiration: { $gt: 1559716953 }, status: { $ne: "inactive" }, servicePath: { $in: [ /^$|^/#$|^/dresden/#$|^/dresden$/, null ] } }, { entities.isPattern: "true", entities.isTypePattern: { $ne: true }, expiration: { $gt: 1559716953 }, status: { $ne: "inactive" }, servicePath: { $in: [ /^$|^/#$|^/dresden/#$|^/dresden$/, null ] }, $where: function(){for (var i=0; i < this.entities.length; i++) {if (this.enti... }, { entities.isPattern: "false", entities.isTypePattern: true, expiration: { $gt: 1559716953 }, status: { $ne: "inactive" }, servicePath: { $in: [ /^$|^/#$|^/dresden/#$|^/dresden$/, null ] }, $where: function(){for (var i=0; i < this.entities.length; i++) {if (this.enti... }, { entities.isPattern: "true", entities.isTypePattern: true, expiration: { $gt: 1559716953 }, status: { $ne: "inactive" }, servicePath: { $in: [ /^$|^/#$|^/dresden/#$|^/dresden$/, null ] }, $where: function(){for (var i=0; i < this.entities.length; i++) {if (this.enti... } ] })
fiware-orion   | INFO@06:42:34  connectionOperations.cpp[177]: Database Operation Successful (query: { query: { $or: [ { contextRegistration.entities: { $in: [ { id: "urn:ngsi-ld:pysense:002", type: "pysense" }, { type: "pysense", id: "urn:ngsi-ld:pysense:002" } ] } }, { contextRegistration.entities.id: { $in: [] } } ], expiration: { $gt: 1559716954 }, contextRegistration.attrs.name: { $in: [ "color" ] }, servicePath: { $in: [ /^/dresden$/ ] } }, orderby: { _id: 1 } })
fiware-orion   | INFO@06:42:34  logMsg.h[1844]: Starting transaction to http://orion:1026/v1/updateContext
...

我在邮递员中得到以下错误作为答复：

{
    "error": "NotFound",
    "description": "The requested entity has not been found. Check type and id"
}

当orion自行注册命令时，它看起来像是使用iot-agent作为提供者，而不是orion / v1：

    {
        "id": "5cf677b7c7ecc4737e1e0ec9",
        "expires": "2020-06-04T13:52:55.00Z",
        "dataProvided": {
            "entities": [
                {
                    "id": "urn:ngsi-ld:pysense:002",
                    "type": "pysense"
                }
            ],
            "attrs": [
                "color",
                "brightness"
            ]
        },
        "provider": {
            "http": {
                "url": "http://iot-agent:4041"
            },
            "supportedForwardingMode": "all",
            "legacyForwarding": true
        },
        "status": "active"
    }

这样我实际上可以发送命令，但是它仍然会丢失值。 :(

EDIT2： 我在orion的大量调试日志中发现了一些东西：

fiware-orion   | INFO@07:35:09  connectionOperations.cpp[177]: Database Operation Successful (query: { query: { $or: [ { contextRegistration.entities: { $in: [ { id: "urn:ngsi-ld:pysense:002", type: "pysense" }, { type: "pysense", id: "urn:ngsi-ld:pysense:002" } ] } }, { contextRegistration.entities.id: { $in: [] } } ], expiration: { $gt: 1559720109 }, contextRegistration.attrs.name: { $in: [ "color" ] }, servicePath: { $in: [ /^/dresden$/ ] } }, orderby: { _id: 1 } })
fiware-orion   | ERROR@07:35:09  postUpdateContext.cpp[553]: Internal Error (attribute 'color' not found)

之后，IoT-Agent将更新上下文，但没有值。

1 个答案:

答案 0 :(得分：1)

有两个解决此问题的方法。与教程不同的第一件事是需要使用命令注册的提供程序。代替orion：1026 / v1注册IoT-Agent。它应该看起来像这样，将docker-compose.yml中的IOTA_PROVIDER_URL作为提供程序：

{
        "description": "Setting LED",
        "dataProvided": {
            "entities": [
                {
                    "id": "urn:ngsi-ld:pysense:002",
                    "type": "pysense"
                }
            ],
            "attrs": [
                "color",
                "brightness"
            ]
        },
        "provider": {
            "http": {
                "url": "http://iot-agent:4041"
            },
            "supportedForwardingMode": "all",
            "legacyForwarding": true
        },
        "status": "active"
    }

现在，您可以通过两种方式发送命令。第一个直接通过oror / v1 / updateContext的POST命令到达IoT Agent的北端口。第二种方法是通过向实体属性发送PATCH命令，在上下文中更新命令，为请求提供实体的类型。

1：发布到updateContext 

curl -iX POST \
  'http://localhost:1026/v1/updateContext' \
  -H 'Content-Type: application/json' \
  -H 'fiware-service: openiot' \
  -H 'fiware-servicepath: /' \
  -d '{
    "contextElements": [
        {
            "type": "pysense",
            "isPattern": "false",
            "id": "urn:ngsi-ld:pysense:002",
            "attributes": [
                {
                    "name": "color",
                    "type": "command",
                    "value": "25"
                }
            ]
        }
    ],
    "updateAction": "UPDATE"
}

2：PATCH添加实体类型 

curl -iX PATCH \
  'http://localhost:1026/v2/entities/urn_ngsi-ld:pysense:002/attrs?type=pysense' \
  -H 'Content-Type: application/json' \
  -H 'fiware-service: openiot' \
  -H 'fiware-servicepath: /' \
  -d '{
  "color": {
      "type" : "command",
      "value" : "90"
  }
}

感谢fgalan提供的帮助！

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