US 12,287,667 B2
Control system, clock synchronization method, controller, node device, and vehicle
Xuefeng Chen, Shenzhen (CN); Tao Qin, Shenzhen (CN); and Jie Li, Shenzhen (CN)
Assigned to Shenzhen Yinwang Intelligent Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Apr. 25, 2023, as Appl. No. 18/306,557.
Application 18/306,557 is a continuation of application No. PCT/CN2020/124943, filed on Oct. 29, 2020.
Prior Publication US 2023/0266788 A1, Aug. 24, 2023
Int. Cl. G06F 1/12 (2006.01); G06F 1/08 (2006.01); G06F 1/10 (2006.01); G06F 13/40 (2006.01); G06F 15/173 (2006.01); H04L 7/00 (2006.01); H04L 12/42 (2006.01)
CPC G06F 1/12 (2013.01) [G06F 1/08 (2013.01); G06F 1/10 (2013.01); G06F 13/404 (2013.01); G06F 15/17375 (2013.01); H04L 7/0008 (2013.01); H04L 12/422 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A control system, wherein:
the control system comprises a ring network, and the ring network comprises a primary controller and at least one node device;
the primary controller is configured to:
perform timing and execute a first task based on a frequency of a local clock signal of the primary controller; and
send a reference clock signal to the at least one node device by using the ring network, wherein the reference clock signal is obtained by performing frequency division on the local clock signal of the primary controller; and
the at least one node device is configured to perform timing and execute a second task based on a frequency of the reference clock signal.