Several reporting statuses of the device:
1.Active reporting - After the device status changes, it actively reports DP data.
2.Query reporting - The cloud or app wants to actively perceive the device status, sends instructions to the device, and the device initiates a report after receiving the corresponding instructions.
3.Synchronous reporting - The device actively synchronizes the status with the cloud (possibly due to the device being powered on again).
Only active reporting by the device will trigger linkage. If it is a query or synchronous report, it will not trigger linkage.