Automobile sensor time synchronization method based on PTP protocol as well as system
A technology of time synchronization system and PTP protocol, which is applied in the direction of time division multiplexing system, electrical components, multiplexing communication, etc., can solve the problems of time loss at the millisecond level and cannot meet the needs of unmanned driving, and achieve The effect of meeting the time synchronization, improving the timing synchronization index, and meeting the requirements of clock synchronization
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.
[0030] Such as figure 1 Shown, a kind of automobile sensor time synchronization method based on PTP agreement of the present invention, it comprises the steps:
[0031] S1. Connect multiple CPU computing units on the vehicle to form a local area network through a switch supporting the PTP protocol, set one CPU as the master clock, and other CPUs as slave clocks;
[0032] S2. Through the exchange of time messages between the master clock and the sl...
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Abstract
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