Data visualization ---- web page displays temperature and humidity

[Purpose]:

The temperature and humidity data reported by ESP8266 to the cloud will be displayed on the web page, so that we can check the real-time temperature and humidity of the office anytime, anywhere.
@: The temperature and humidity data are reported to [Material Access], and through the [rule engine]] Send the temperature and humidity data to [Database]/[Cloud Host]
After that, we carry out [front-end + back-end] development on the host, so as to display the temperature and humidity on the web page and realize [Data Visualization]
②: Baidu Cloud provides IoT components such as [Object Visualization]
so that we can display the temperature and humidity on the web page without purchasing [Cloud Host] and without the need for [front-end + back-end] development to realize [Data Visualization]

The data source of the object can be the object management. Our device can report the data to the object management through the mqtt protocol, and the object management will use the data we report as the data source of the object.Our device can also report data to the object access, and then send the data to the time series database through the rule engine, and the time series database is then used as the data source of the object view.The visible data source can also be static data, that is, .JSON/.CSV files

[Object Visualization] Data Source
①: Time Series Database
②: Thing Shadow
③: Static Database File
[Data Flow]: ①[Object Access] 1 > [Time Series]Database] 1>【Object Visualization】
②【Object Management_Object Shadow】->【Object Visualization】

【Material Management】Note:
①: 【Material Management】Access protocol: MQTT, HTTP, which can be seamlessly connected with the material engine, alarm service, material visualization and other products.
②: 【Object model】consists of one or more attributes, which can be used to represent a type of equipment.It is a component of property management.
③: [Object Shadow] corresponds to a real device in the real world.One of the data sources of [Object Visual] is [Object Shadow].
Note: Before the separate billing policy was introduced by the thing management, the request/response messages generated when the thing management updated the device shadow through the MQTT protocol will be counted in the [thing access].

【Object Shadow】Precautions for use:
④: Device connection 【Object Shadow】: MQTT connection parameters, obtained when the object shadow is created.[ClientID] in MQTTQ is changed to [Object Shadow Name]
⑤: After the MQTT connection is successful, for the [topic] of subscription and publishing, please refer to [Console] 1 > [Object Shadow] -> [Interaction]
⑥: For the format of reporting data to [Object Shadow], please refer to [Product Documentation]->[Object Management]->[Object Shadow Operation]