Onenet Internet of things platform - mqtt product equipment upload data points

System topic	purpose
$sys/{pid}/{device-name}/dp/post/json	The device uploads data points
$sys/{pid}/{device-name}/dp/post/json/accepted	System notification " The device uploads data points successfully "
$sys/{pid}/{device-name}/dp/post/json/rejected	System notification " The device failed to upload data points "

Subscribe to upload result notification

Devices can subscribe to the system topic Get upload data point result message

open MQTT.fx, Connecting device , choice Subscribe term , Enter subscription topic name

• topic The naming rules are as follows （+ The wildcard ）：

  $sys/{
        pid}/{
        device-name}/dp/post/json/+
  

For example, mine is $sys/480701/yuyun-test/dp/post/json/+, You can receive the notification sent back by the platform

The two commands in the figure below can obtain the commands sent by the platform to the device ：

Device data point upload

choice Publish term , Enter publish topic , The naming rules are as follows ：

$sys/{
    pid}/{
    device-name}/dp/post/json

The data content is as follows ：

{
    
    "id": 123,        
    "dp": {
                 
        "temperatrue": [{
         
            "v": 30,       
            "t": 1552289676
        }],
        "power": [{
         
            "v": 4.5,        
            "t": 1552289676 
        }],
        "status": [{
    
                "v": {
    
                    "color": "blue"
                },
                "t": 1552289677
            },
            {
    
                "v": {
    
                    "color": "red"
                },
                "t": 1552289678
            }
        ]
    }
}

Parameter description ：

Parameters	type	If required	explain
id	int	yes	news ID, Greater than 0 The integer of , The range of values is ,4 The value range of signed number of bytes
dp	object	yes	Data point content ,key-value Format ,key Is the name of the data stream ,value by list One or more data point values in the format In the above example, I want to temperatrue、power、status Upload time stamped data in three data streams
v	-	yes	Data point value , It can be for int/float/string/object Multiple formats
t	init	no	Data point timestamp ,unix Time , The unit is in seconds , If you don't carry , Then the system will take the data arrival time as its data time

Click on Publish Then upload data points to the platform , stay Subscribe You can see the information returned by the platform

The console looks at the data

Get into onenet View device data flow on the console , Here's the picture ： Just use MQTT.fx Data uploaded by simulated devices

Upload more data , Then click on the data flow of the console , You can see the historical data of the data stream

It can also be refreshed in real time （ If the device has been uploading data , Then the data can be displayed in real time ）