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82 lines
2.2 KiB
82 lines
2.2 KiB
3 years ago
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## Node-Red
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https://nodered.org/
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`Node-Red`是基于Nodejs的轻量级事件驱动引擎。可以运行在低配置的网络边缘硬件上，例如树莓派。
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<img src="imgs/边缘网关NodeRed应用/image-20211102100042605.png" width="600"/>
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[容器启动](https://nodered.org/docs/getting-started/docker)
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```sh
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docker run -it -p 1880:1880 -v node_red_data:/data --name mynodered nodered/node-red
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```
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访问 http://10.8.30.37:1880/
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第一个流的例子：
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<img src="imgs/边缘网关NodeRed应用/image-20211102102818859.png" width="600"/>
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## 边缘网关中的应用
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安装mqtt代理mosquitto
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ubuntu上安装:
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```sh
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1. 安装启动mqtt代理服务
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服务器上安装 mosquito：
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apt-get install mosquitto
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启动代理：
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mosquitto -d
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p.s. mosquito默认启用1883端口，如需设置其他端口，使用 –p参数(更多参数 查看 mosquito help)
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```
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`mosquitto.conf`
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```conf
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persistence true
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persistence_location /mosquitto/data/
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log_dest file /mosquitto/log/mosquitto.log
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listener 1883 0.0.0.0
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```
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```sh
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$ docker run -it -p 1886:1883 -p 9001:9001 -v mosquitto.conf:/mosquitto/config/mosquitto.conf -v /mosquitto/data -v /mosquitto/log eclipse-mosquitto
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```
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## 云边协同的初步设计
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基于以太Thing为单位，可以将配置下发到边缘进行配置和采集（一个边缘网关可以绑定多个thing）。
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Thing下如果包含振动设备，需要将振动设备的配置提取和映射到go-daas匹配的格式，启动daas进行采集和上报。
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云端应该能够进行配置下发和查看同步的状态。
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*边缘上可以进行相关采集配置（离线配置），并根据配置内容上报云端。如果出现冲突状态，需要人为介入进行解决。
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*平台产品原型、协议的更改，不会触发边缘配置的同步，会造成上下配置不统一的问题；
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## 附
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发现一家做智能楼宇的物联网公司Go-IoT。https://www.go-iot.io/dingo
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