设置LWM2M设备与IDAS通信

Question

我是Fiware新手，需要帮助。

我想配置一个使用CoAP协议的路边设备(传感器)到IDAS IoT代理(轻量级M2M代理)，这样这个设备就可以向IDAS发送一些数据。

我如何才能完成这项任务？

Answer 1

我们是一家通过FIWARE技术使用LwM2M协议的公司，也许我们的IoT FIWARE对接基础设施可以帮助你。

https://gitlab.hopu.eu/software/FIWARE/fiware-docker-infrastructure

Answer 2

读过您之前的评论后，我了解到您希望构建一个方案，以便将传感器连接到IotAgent-LWM2M。

要使用LW2M2 IotAgent：

使用npm packages

• Install轻量级

1. 安装LW2M2代理: git clone https://github.com/telefonicaid/lightweightm2m-iotagent.git
2. Install yarm安装所有依赖项: git clone yarm

技术要求：

1. Mosquito v3.1 Broker
2. Orion

v.3.2

• NodeJS v0.12

我建议你在评论之前使用docker安装依赖项。

 version : "2"

services:
  mongo:
    image: mongo:3.2
    command: --nojournal
    ports:
      - "27017:27017"
    expose:
      - "27017"
  orion:
    image: fiware/orion
    links:
      - mongo
    ports:
      - "1026:1026"
    command: -dbhost mongo
    expose:
      - "1026"
  mosquitto:
    image: ansi/mosquitto
    ports:
      - "1883:1883"
    expose:
      - "1883"

注意：蚊子扮演的角色类似于传感器

入门: StepByStep

第1步:创建设备

(curl localhost:4041/iot/devices -s -S --header 'Content-Type: application/json' \
--header 'Accept: application/json' --header 'fiware-service: Factory' --header      'fiware-servicepath: /robots' \
-d @- | python -mjson.tool) <<EOF
{
"devices": [
   {
    "device_id": "robot1",
    "entity_type": "Robot",
    "attributes": [
      {
        "name": "Battery",
        "type": "number"
      }
    ],
    "lazy": [
      {
        "name": "Message",
        "type": "string"
      }
    ],
    "commands": [
      {
        "name": "Position",
        "type": "location"
      }
    ],
  "internal_attributes": {
    "lwm2mResourceMapping": {
      "Battery" : {
        "objectType": 7392,
        "objectInstance": 0,
        "objectResource": 1
      },
      "Message" : {
        "objectType": 7392,
        "objectInstance": 0,
        "objectResource": 2
      },
      "Position" : {
        "objectType": 7392,
        "objectInstance": 0,
        "objectResource": 3
      }
    }
  }
}]}
EOF

步骤2:创建服务

curl -X POST -H "Fiware-Service: myHome" -H "Fiware-ServicePath: /environment" -H  "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"services": [
{
      "resource": "/",
      "apikey": "",
      "type": "Robot",
      "cbroker":"localhost:1026"
 }]
}' 'http://localhost:4041/iot/services'

第3步:将传感器连接到客户端

(bin/iotagent-lwm2m-client.js)

Object Creation:
LWM2M-Client> create /7392/0
Battery attribute:
LWM2M-Client> set /7392/0 1 89
Message Attribute:
LWM2M-Client> set /7392/0 2 "First robot here"
Position attribute:
LWM2M-Client> set /7392/0 3 "[0,0]

第4步:与服务器连接

LWM2M-Client> connect localhost 5684 robot1 /

步骤5:更新属性

set /7392/0 1 67

步骤6:查询Orion以查看更新的属性

    curl -X POST http://localhost:1026/v1/queryContext -s -S 
--header 'Content-Type: application/json' \
--header 'Accept: application/json' --header 'fiware-service: Factory' 
--header 'fiware-servicepath: /robots' \
-d '
{
   "entities": [
       {
           "type": "Robot",
           "isPattern": "false",
           "id": "Robot:robot1"
       }
   ]
}