Clock synchronization method, device and equipment of Internet of Things equipment

Abstract

The embodiment of the invention provides a clock synchronization method, device and equipment for Internet of Things equipment, and the method comprises the steps: receiving synchronization information transmitted by a cloud server, and recording the first receiving time when the synchronization information is received; determining a time difference between the time of the Internet of Things device and the time of the cloud server; and performing clock synchronization on the Internet of Things device and the cloud server according to the first receiving time and the time difference. The methodcomprises the following steps: recording first receiving time for receiving synchronization information; determining a time difference between the Internet of Things device and a cloud server, performing clock synchronization on the Internet of Things equipment and the cloud server according to the first receiving time and the time difference; the accuracy of clock synchronization of the Internetof Things device and the cloud server can be ensured without adding an additional communication protocol module to the Internet of Things device or enabling the Internet of Things device to communicate with the third-party clock server, the time synchronization requirement of the Internet of Things device is met, and meanwhile, the implementation structure is greatly simplified.

Description

technical field [0001] The present invention relates to the technical field of the Internet of Things, and in particular to a clock synchronization method, device and device for Internet of Things devices. Background technique [0002] IoT smart devices often have the need to obtain accurate network time. For example, a smart lock device must know the precise time in order to complete the timing unlocking and locking functions, otherwise it cannot complete precise timing. However, existing IoT devices often do not have a built-in Network Time Protocol (NTP) module due to limited resources on the end. Therefore, it is impossible to directly synchronize the clock with the ntp time server through the ntp protocol. Among them, the clock synchronization It refers to the time synchronization between two nodes in the network to eliminate the time difference. Contents of the invention [0003] Embodiments of the present invention provide a clock synchronization method, device, an...

AI Technical Summary

Problems solved by technology

[0002] IoT smart devices often have the need to obtain accurate network time, such as a smart lock device, in order to complete the timing unlock and lock function, it is necessary to know the precise time, otherwise the precise timing cannot be completed

However, existing IoT devices often do not have a built-in Network Time Protocol (NTP) module due to limited resources on the end. Therefore, it is impossible to directly synchronize the clock with the ntp time server through the ntp protocol. Among them, the clock synchronization It refers to the time synchronization between two nodes in the network to eliminate the time difference

Images