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gateway网关可以将现场设备数据收集后，再联通到thingsboard后台控制中心，并自动显示设备信息 这个是网关的结构图  可以参照官网配置网关
建立网关设备
 一定要勾选上是网关选项
下载运行thingsboard-gateway
我是在虚拟机环境通过docker安装的
docker run -it -v ~/.tb-gateway/logs:/thingsboard_gateway/logs -v ~/.tb-gateway/extensions:/thingsboard_gateway/extensions -v ~/.tb-gateway/config:/thingsboard_gateway/config --name tb-gateway --restart always thingsboard/tb-gateway
 安装完成后，需要配置网关信息
配置tb_gateway.yml
thingsboard:
host: 192.168.137.131
port: 1883
remoteShell: false
remoteConfiguration: false
security:
accessToken: VO9ZKbJAIW9QK8IZbPhq
qos: 1
storage:
type: memory
read_records_count: 100
max_records_count: 100000
# type: file
# data_folder_path: ./data/
# max_file_count: 10
# max_read_records_count: 10
# max_records_per_file: 10000
connectors:
-
name: MQTT Broker Connector
type: mqtt
configuration: mqtt.json
host是thingsboard的ip地址，这里我设置的是我另外一个虚拟机的IP port就是thingsboard的MQTT的port端口 accessToken是网关的口令  因为这里只有一个mqtt设备，所以connectors只有一个
下一步配置mqtt远程信息，但是需要安装mqtt broker，这里我选择使用hivemq
安装hivemq
使用docker进行部署  然后登陆进hivemq的web控制台  记录好hivemq的ip地址
配置gateway中的mqtt.json
{
"broker": {
"name":"Default Local Broker",
"host":"192.168.137.129",
"port":1883,
"clientId": "ThingsBoard_gateway",
"security": {
"type": "basic",
"username": "admin",
"password": "hivemq"
}
},
"mapping": [
{
"topicFilter": "/sensor/data",
"converter": {
"type": "json",
"deviceNameJsonExpression": "${serialNumber}",
"deviceTypeJsonExpression": "${sensorType}",
"timeout": 60000,
"attributes": [
{
"type": "string",
"key": "model",
"value": "${sensorModel}"
},
{
"type": "string",
"key": "${sensorModel}",
"value": "on"
}
],
"timeseries": [
{
"type": "double",
"key": "temperature",
"value": "${temp}"
},
{
"type": "double",
"key": "humidity",
这里面最主要的是broker这段
"broker": {
"name":"Default Local Broker",
"host":"192.168.137.129",
"port":1883,
"clientId": "ThingsBoard_gateway",
"security": {
"type": "basic",
"username": "admin",
"password": "hivemq"
}
host就是hivemq的ip地址 port是hivemq的port端口 security是默认的安全配置，官网推荐的是basic
使用mqttbox连接hivemq
 这里的IP地址是hivemq的地址，不要写成thingsboard或者gateway的地址 点击save查看连接状态  hivemq控制台也能看到这个客户端的连接信息 
发送设备信息到hivemq
通过mqtt.json中设置的信息规则，发送信息  这里一定要注意发送的Payload中的双引号一定要用英文的。 我因为复制粘贴官网上的信息，一直报错，不能发送到thingsboard中去 通过docker logs查看错误日志，发现下面的错误信息
simplejson.errors.JSONDecodeError: Expecting property name enclosed in double quotes: line 1 column 2 (char 1)
""2021-01-26 08:40:49" - ERROR - [tb_utility.py] - tb_utility - 63 - No telemetry and attributes in data: {"deviceName": "SN-005", "deviceType": "Thermometer", "attributes": [], "telemetry": []}"
""2021-01-26 08:40:49" - ERROR - [tb_gateway_service.py] - tb_gateway_service - 322 - Data from MQTT Broker Connector connector is invalid."
""2021-01-26 08:43:59" - ERROR - [json_mqtt_uplink_converter.py] - json_mqtt_uplink_converter - 77 - Error in converter, for config:
{"type": "json", "deviceNameTopicExpression": "(? |