文章目录

安装及配置
- 下载安装Node-RED
- Node-RED下载节点
实验
- 1. 串口显数
- 2. MQTT
JSON源码
- 1. 串口显示实验
- 2. MQTT实验

安装及配置

https://nodered.org/docs/

下载安装Node-RED

下载安装Node.js（并配置环境变量）后，且node安装版本需要在v14.17.2.0以上，npm版本安装版本在v6.14.13以上。

设置npm默认安装依赖位置

npm set cache H:\nodejs\node_cache
npm set prefix H:\nodejs\node_global

换源

npm config set registry https://registry.npm.taobao.org

Node.js安装Node-RED

npm install -g --unsafe-perm node-red

或是Docker安装Node-RED

docker run -it -p 1880:1880 --name mynodered -d nodered/node-red

启动

node-red

Node-RED下载节点

打开浏览器访问localhost:1880，点击右上方，在节点管理>>控制板>>安装中即可下载以下组件：

node-red-dashboard，用于部署后形成控制面板（访问localhost:1880/ui）；
node-red-node-serialport，添加串口组件。

实验

1. 串口显数

收集Zigbee和WiFi网关数据。
左为Zigbee网关接入串口，右为WiFi网关接入串口。
流程并部署
面板效果
硬件连接图
（需按硬件实际情况，传输的数据格式，修改JSON中的自定义函数）

2. MQTT

首先需要有本地的MQTT Broker

下载安装EMQX
https://www.emqx.com/zh/try?product=broker
或是用Docker安装

docker run -d --name emqx -p 1883:1883 -p 8081:8081 -p 8083:8083 -p 8084:8084 -p 8883:8883 -p 18083:18083 emqx/emqx:4.3.11

启动

emqx start

访问localhost:18083

Node-RED设置及流程

设置节点
流程并部署
结果

关闭EMQX

emqx stop

JSON源码

1. 串口显示实验

[{"id": "a271f746b8b78baf","type": "tab","label": "串口显数流程","disabled": false,"info": ""},{"id": "23256dc00e20c5e6","type": "debug","z": "a271f746b8b78baf","name": "测试打印","active": true,"tosidebar": true,"console": false,"tostatus": false,"complete": "payload","targetType": "msg","statusVal": "","statusType": "auto","x": 340,"y": 260,"wires": []},{"id": "8e429633a17d9fc4","type": "serial in","z": "a271f746b8b78baf","name": "Zigbee串口COM7输入","serial": "854e53dd8b178f91","x": 120,"y": 140,"wires": [["e399fd2c31a733ad"]]},{"id": "77dba539c59a386f","type": "ui_text","z": "a271f746b8b78baf","group": "edb315d0aa0404ce","order": 0,"width": 0,"height": 0,"name": "","label": "超声波传感器","format": "{{msg.payload}}","layout": "row-spread","className": "","x": 1100,"y": 80,"wires": []},{"id": "04165a40f0638664","type": "switch","z": "a271f746b8b78baf","name": "WiFi节点判断","property": "topic","propertyType": "msg","rules": [{"t": "eq","v": "三轴","vt": "str"},{"t": "eq","v": "震动","vt": "str"},{"t": "else"}],"checkall": "false","repair": false,"outputs": 3,"x": 660,"y": 380,"wires": [["93cce256dae79ec0"],["2714bf9cf36752b8"],["b26f54754a4e36ef"]]},{"id": "6594423759956339","type": "ui_text","z": "a271f746b8b78baf","group": "edb315d0aa0404ce","order": 0,"width": 0,"height": 0,"name": "","label": "烟雾传感器","format": "{{msg.payload}}","layout": "row-spread","className": "","x": 1090,"y": 160,"wires": []},{"id": "4536daee149e96d2","type": "ui_text","z": "a271f746b8b78baf","group": "edb315d0aa0404ce","order": 0,"width": 0,"height": 0,"name": "","label": "其它Zigbee节点","format": "{{msg.payload}}","layout": "row-spread","className": "","x": 860,"y": 200,"wires": []},{"id": "07acf3dda54fa7e2","type": "ui_text","z": "a271f746b8b78baf","group": "2c4daaf625693205","order": 4,"width": 0,"height": 0,"name": "","label": "三轴传感器","format": "{{msg.payload}}","layout": "row-spread","className": "","x": 1130,"y": 320,"wires": []},{"id": "27e9f9f58a22f1f6","type": "ui_text","z": "a271f746b8b78baf","group": "2c4daaf625693205","order": 4,"width": 0,"height": 0,"name": "","label": "震动传感器","format": "{{msg.payload}}","layout": "row-spread","className": "","x": 1090,"y": 420,"wires": []},{"id": "b26f54754a4e36ef","type": "ui_text","z": "a271f746b8b78baf","group": "2c4daaf625693205","order": 4,"width": 0,"height": 0,"name": "","label": "其它WiFi节点","format": "{{msg.payload}}","layout": "row-spread","className": "","x": 820,"y": 460,"wires": []},{"id": "f047fd0de0c8644c","type": "ui_chart","z": "a271f746b8b78baf","name": "","group": "edb315d0aa0404ce","order": 3,"width": 0,"height": 0,"label": "超声波传感器监视","chartType": "bar","legend": "false","xformat": "HH:mm:ss","interpolate": "linear","nodata": "","dot": false,"ymin": "0","ymax": "5","removeOlder": "5","removeOlderPoints": "","removeOlderUnit": "1","cutout": 0,"useOneColor": false,"useUTC": false,"colors": ["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"outputs": 1,"useDifferentColor": false,"className": "","x": 1110,"y": 40,"wires": [[]]},{"id": "909bafbb628444e1","type": "ui_chart","z": "a271f746b8b78baf","name": "","group": "2c4daaf625693205","order": 3,"width": 0,"height": 0,"label": "震动传感器监视","chartType": "line","legend": "false","xformat": "HH:mm:ss","interpolate": "linear","nodata": "","dot": false,"ymin": "-1","ymax": "12","removeOlder": "5","removeOlderPoints": "","removeOlderUnit": "1","cutout": 0,"useOneColor": false,"useUTC": false,"colors": ["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"outputs": 1,"useDifferentColor": false,"className": "","x": 1100,"y": 380,"wires": [[]]},{"id": "ccf9848aae2ae4ce","type": "function","z": "a271f746b8b78baf","name": "处理超声波传感器数据","func": "var node = msg.payload\nvar shortAddr = node[0]\nreturn [\n    {topic: shortAddr, payload: node[1]},\n    {topic: shortAddr, payload: \"\"+ (node[1] / 100) +\" m\"}\n]","outputs": 2,"noerr": 0,"initialize": "","finalize": "","libs": [],"x": 880,"y": 80,"wires": [["f047fd0de0c8644c"],["77dba539c59a386f"]]},{"id": "9de3a936b607a633","type": "serial in","z": "a271f746b8b78baf","name": "WiFi串口COM8输入","serial": "804b073ba5bac0a9","x": 130,"y": 380,"wires": [["5598f41421735b24"]]},{"id": "5598f41421735b24","type": "function","z": "a271f746b8b78baf","name": "处理串口数据函数并判读节点类型","func": "var frame = msg.payload\n// 端节点地址\nvar endDeviceAddr = frame[3]+frame[4]\n// 传感器类型\nvar sensorNo = frame[5]\nvar sensor = [\"温湿度\", \"人体红外\", \"光照\", \"震动\", \n          \"烟雾\", \"酒精\", \"超声波\", \"三轴\",\n          \"水流量\", \"雨滴\", \"门磁\"]\n// 数据\nvar data = [frame[6], frame[7], frame[8]]\nreturn {topic: sensor[sensorNo], payload: [endDeviceAddr, data]}","outputs": 1,"noerr": 0,"initialize": "","finalize": "","libs": [],"x": 400,"y": 380,"wires": [["04165a40f0638664"]]},{"id": "93cce256dae79ec0","type": "function","z": "a271f746b8b78baf","name": "处理三轴传感器数据","func": "var node = msg.payload\n// 节点短地址\nvar endDevice = node[0]\n// 三轴值\nvar x = node[1][0]\nvar y = node[1][1]\nvar z = node[1][2]\nvar data = \"x: \" + x +\",y: \" + y + \",z: \" + z\n// 三轴x值\nreturn [\n    {topic: \"x\", payload: x},\n    {topic: \"y\", payload: y},\n    {topic: \"z\", payload: z},\n    {topic: \"data\", payload: data}\n]\n","outputs": 4,"noerr": 0,"initialize": "","finalize": "","libs": [],"x": 880,"y": 320,"wires": [["01017c20c0854b66"],["01017c20c0854b66"],["01017c20c0854b66"],["07acf3dda54fa7e2"]]},{"id": "01017c20c0854b66","type": "ui_chart","z": "a271f746b8b78baf","name": "","group": "2c4daaf625693205","order": 3,"width": 0,"height": 0,"label": "三轴传感器监视","chartType": "pie","legend": "false","xformat": "HH:mm:ss","interpolate": "linear","nodata": "","dot": false,"ymin": "-20","ymax": "50","removeOlder": "5","removeOlderPoints": "","removeOlderUnit": "1","cutout": 0,"useOneColor": false,"useUTC": false,"colors": ["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"outputs": 1,"useDifferentColor": false,"className": "","x": 1140,"y": 280,"wires": [[]]},{"id": "2714bf9cf36752b8","type": "function","z": "a271f746b8b78baf","name": "处理震动传感器数据","func": "var node = msg.payload\n// 节点短地址\nvar endDeviceAddr = node[0]\n// 震动值\nvar val = node[1][0]\nreturn {topic: endDeviceAddr, payload: val}\n","outputs": 1,"noerr": 0,"initialize": "","finalize": "","libs": [],"x": 880,"y": 400,"wires": [["909bafbb628444e1","27e9f9f58a22f1f6"]]},{"id": "e399fd2c31a733ad","type": "function","z": "a271f746b8b78baf","name": "处理串口数据函数并判读节点类型","func": "var frame = msg.payload\n// 节点短地址\nvar shortAddr = frame[5]+frame[6]\n// 传感器类型\nvar sensorNo = frame[10]\nvar sensor\nif (sensorNo == 0x86)\n{\n    // 超声波\n    sensor = \"超声波\"\n} \nelse if (sensorNo == 0x84) {\n    // 烟雾\n    sensor = \"烟雾\"\n}\n// 数据\nvar data = frame[11]\nreturn {topic: sensor, payload: [shortAddr, data]}","outputs": 1,"noerr": 0,"initialize": "","finalize": "","libs": [],"x": 400,"y": 140,"wires": [["41c18eac9586b069"]]},{"id": "41c18eac9586b069","type": "switch","z": "a271f746b8b78baf","name": "Zigbee节点判断","property": "topic","propertyType": "msg","rules": [{"t": "eq","v": "超声波","vt": "str"},{"t": "eq","v": "烟雾","vt": "str"},{"t": "else"}],"checkall": "false","repair": false,"outputs": 3,"x": 660,"y": 140,"wires": [["ccf9848aae2ae4ce"],["8a390ebd777bfc59"],["4536daee149e96d2"]]},{"id": "8a390ebd777bfc59","type": "function","z": "a271f746b8b78baf","name": "处理烟雾传感器数据","func": "var node = msg.payload\nvar shortAddr = node[0]\nvar data = node[1]\nreturn {topic: shortAddr, payload: data}","outputs": 1,"noerr": 0,"initialize": "","finalize": "","libs": [],"x": 880,"y": 140,"wires": [["83c29137012ce704","6594423759956339"]]},{"id": "83c29137012ce704","type": "ui_chart","z": "a271f746b8b78baf","name": "","group": "edb315d0aa0404ce","order": 3,"width": 0,"height": 0,"label": "烟雾传感器监视","chartType": "line","legend": "false","xformat": "HH:mm:ss","interpolate": "linear","nodata": "","dot": false,"ymin": "-20","ymax": "50","removeOlder": "5","removeOlderPoints": "","removeOlderUnit": "1","cutout": 0,"useOneColor": false,"useUTC": false,"colors": ["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"outputs": 1,"useDifferentColor": false,"className": "","x": 1100,"y": 120,"wires": [[]]},{"id": "854e53dd8b178f91","type": "serial-port","serialport": "COM7","serialbaud": "115200","databits": "8","parity": "none","stopbits": "1","waitfor": "","dtr": "none","rts": "none","cts": "none","dsr": "none","newline": "13","bin": "bin","out": "count","addchar": "","responsetimeout": "10000"},{"id": "edb315d0aa0404ce","type": "ui_group","name": "Zigbee节点数据","tab": "9426268fa5f427a2","order": 1,"disp": true,"width": "6","collapse": false,"className": ""},{"id": "2c4daaf625693205","type": "ui_group","name": "WiFi节点数据","tab": "9426268fa5f427a2","order": 2,"disp": true,"width": "6","collapse": false,"className": ""},{"id": "804b073ba5bac0a9","type": "serial-port","serialport": "COM8","serialbaud": "9600","databits": "8","parity": "none","stopbits": "1","waitfor": "","dtr": "none","rts": "none","cts": "none","dsr": "none","newline": "10","bin": "bin","out": "count","addchar": "","responsetimeout": "10000"},{"id": "9426268fa5f427a2","type": "ui_tab","name": "数据采集系统","icon": "dashboard","disabled": false,"hidden": false}
]

2. MQTT实验

[{"id": "8cfa40f205178e09","type": "tab","label": "MQTT流程","disabled": false,"info": "","env": []},{"id": "786c122f2dca298c","type": "inject","z": "8cfa40f205178e09","name": "","props": [{"p": "payload"},{"p": "topic","vt": "str"}],"repeat": "","crontab": "","once": false,"onceDelay": 0.1,"topic": "test-MQTT","payload": "这是一个测试","payloadType": "str","x": 210,"y": 120,"wires": [["3dfcbbceac74d7a9"]]},{"id": "3dfcbbceac74d7a9","type": "mqtt out","z": "8cfa40f205178e09","name": "test-Mqtt-publisher","topic": "test-MQTT","qos": "0","retain": "false","respTopic": "","contentType": "","userProps": "","correl": "","expiry": "","broker": "cfa3263c5fc61d26","x": 490,"y": 120,"wires": []},{"id": "cfa3263c5fc61d26","type": "mqtt-broker","name": "","broker": "localhost","port": "1883","clientid": "","autoConnect": true,"usetls": false,"protocolVersion": "4","keepalive": "60","cleansession": true,"birthTopic": "","birthQos": "0","birthPayload": "","birthMsg": {},"closeTopic": "","closeQos": "0","closePayload": "","closeMsg": {},"willTopic": "","willQos": "0","willPayload": "","willMsg": {},"sessionExpiry": ""}
]

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Node-RED使用记录

文章目录

安装及配置

下载安装Node-RED

Node-RED下载节点

实验

1. 串口显数

2. MQTT

JSON源码

1. 串口显示实验

2. MQTT实验

Node-RED使用记录相关推荐

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