Automatic checking method for clock synchronization and specialized apparatus thereof

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United States of America Patent

PATENT NO 9647783
APP PUB NO 20150341129A1
SERIAL NO

14646612

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Abstract

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The invention relates to an automatic checking method for clock synchronization, comprising the following steps: (1) regularly acquiring clock signals sent by a Beidou signal source, a GPS signal source and an SNTP signal source; (2) performing subtraction to the clock signals of the Beidou signal source and the GPS signal source and evaluating the absolute value of the difference; at the same time, performing subtraction to the clock signals of the Beidou signal source and the SNTP signal source and then evaluating the absolute value of the difference and finally judging the results of the two differences; and (3) constantly repeating steps (1) and (2). The operations in the present invention can efficiently avoid the problems in the existing technology, guarantee the consistency and accuracy of system time, and guarantee the stable and safe operation of the system and the normal operation of other power grid businesses.

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Patent Owner(s)

Patent OwnerAddress
STATE GRID CORPORATION OF CHINA100031 NO 86 WEST CHANG'AN AVENUE BEIJING XICHENG DISTRICT BEIJING CITY BEIJING CITY 100031
STATE GRID TIANJIN ELECTRIC POWER COMPANYNO 39 WUJING ROAD HEBEI DISTRICT TIANJIN 300010

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guo, Lingxu Tianjin, CN 1 0
Liang, Wei Tianjin, CN 171 1279
Liu, Chang Tianjin, CN 480 2580
Liu, Tao Tianjin, CN 613 3850
Song, Weibin Tianjin, CN 11 2
Wang, Nan Tianjin, CN 270 961
Wang, Zheng Tianjin, CN 534 5554
Xu, Ke Tianjin, CN 254 720

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