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Title:
SYSTEM, METHOD, AND APPARATUS FOR SYNCHRONIZING TIME SERVICE OF MULTIPLE SENSORS, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/135382
Kind Code:
A1
Abstract:
A system, method, and apparatus for synchronizing time service of multiple sensors, and an electronic device. A robot (1001) of the system triggers, by means of a trigger signal from a first clock signal source, multiple sensors to collect perception data, and transmits a time service synchronizing request to a server (1002); the server (1002) determines the perception data of the multiple sensors according to the request, and determines the synchronization frame difference of the perception data between the multiple sensors according to the degree of correlation of the inter-frame change of the perception data between the multiple sensors; according to the synchronization frame difference, determine the time offset amount of the perception data between the multiple sensors; return the time offset amount to the robot (1001); and according to the time offset amount, the robot (1001) performs time synchronization on the perception data of the multiple sensors. By using this processing manner, the accuracy of synchronizing the time service of the multiple sensors can be detected in a data plane, and the synchronization of the time service of the multiple sensors is calibrated; and therefore, the present invention can effectively improve the accuracy of synchronizing the time service of the multiple sensors, and ensure the accurate time service of each sensor.

Inventors:
MIAO ZHENWEI (CN)
HU JIANWEI (CN)
HUAN CHENGFEI (CN)
HUANG QINGLE (CN)
CHEN JIKAI (CN)
WANG BING (CN)
WANG GANG (CN)
Application Number:
CN2019/127719
Publication Date:
July 02, 2020
Filing Date:
December 24, 2019
Export Citation:
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Assignee:
ALIBABA GROUP HOLDING LTD (CN)
International Classes:
H04J3/06; G04G7/00
Foreign References:
CN107923991A2018-04-17
CN102421187A2012-04-18
CN108923876A2018-11-30
CN104009833A2014-08-27
JP2018180795A2018-11-15
US20180317245A12018-11-01
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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