Synchronous clock switching method and device, storage medium and electronic device
A technology for synchronizing clocks and clocks, applied in the field of communication, can solve the problems of long time consumption, low clock switching efficiency, unreliable transmission of real-time data, etc., and achieve the effect of improving efficiency and reliable transmission
Active Publication Date: 2021-04-27
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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[0005] The present application provides a synchronous clock switching method and device, storage medium and electronic equipment. Long, the clock switching efficiency is low, resulting in the problem of unreliable transmission of real-time data
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[0069] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0070] The embodiment of the present application provides a synchronous clock switching method. The execution subject of the synchronous clock switching method provided in the embodiment of the present application may be a processor running on a computer. The flow chart of the clock switching method is as follows figure 1 shown, including:
[0071] S101. Monitor whether a communication fault occurs in the communication control system.
[0072] After the communication control system...
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The invention provides a synchronous clock switching method and device, a storage medium and an electronic device, and the method comprises the steps: monitoring whether a communication control system has a communication fault or not, determining a standby main clock with the highest priority from a plurality of preset standby main clocks when the communication control system is monitored to have the communication fault, and replacing the current optimal main clock with the standby main clock with the highest priority to serve as a new optimal main clock of the communication control system. Because the plurality of standby main clocks are preset and the priority is set for each standby main clock, when the communication control system has a communication fault, the standby main clock with the highest priority replaces the current optimal main clock to be used as a new optimal main clock, and clock source information does not need to be compared for multiple times, so that the clock switching efficiency is improved, and reliable transmission of real-time data is realized.
Description
technical field [0001] The present application relates to the communication field, and in particular to a synchronous clock switching method and device, storage medium and electronic equipment. Background technique [0002] With the rapid development of automotive electronics, advanced driver assistance systems based on high-definition audio and video and unmanned driving technology are gradually emerging. A large amount of real-time data needs to be transmitted through Ethernet. Due to the clock jitter and The delay of the data transmission path seriously affects the reliable transmission of real-time data. Therefore, it is necessary to realize clock synchronization for each clock of the communication control system. [0003] In the prior art, the IEEE1588 or IEEE802.1AS clock synchronization method is usually used to achieve clock synchronization, that is, by determining the best master clock in each clock of the communication control system, and using the best master cloc...
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IPC IPC(8): H04J3/06
CPCH04J3/0641
Inventor 路向阳全清华郝波申超群任懋华周学勋陆琦
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST