Leap second detection system and method of GNSS time synchronization system

A technology of time synchronization system and leap second detection, which is applied in the field of satellite navigation, can solve the problems that the leap second function is not universal, cannot test GNSS time synchronization system, and cannot meet the second type of test requirements, etc.

Active Publication Date: 2016-05-11
SHANGHAI INST OF MEASUREMENT & TESTING TECH
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Problems solved by technology

[0006] In history, the leap second time is basically adjusted every time on June 30 or December 31 of the year. Therefore, using actual satellite signals to test the leap second function of the GNSS time synchronization system is not universal and can only meet the first category. The test requirements cannot meet the second type of test requirements, and it is impossible to test whether the GNSS time synchronization system can correctly identify the leap second adjustment information at any time

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  • Leap second detection system and method of GNSS time synchronization system
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  • Leap second detection system and method of GNSS time synchronization system

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[0035] Considering that both the simulation time and message information of the satellite signal simulator can be edited, when testing the leap second function of the GNSS time synchronization system, the satellite signal simulator can be used to generate leap second information and detect the leap second in the output data of the GNSS time synchronization system Whether the value is consistent with the emulator leap second configuration value is used to determine whether the leap second function is correct.

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

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Abstract

The invention provides a leap second detection system of a GNSS time synchronization system. The system includes a satellite navigation signal simulator, a navigation signal control system for configuring the satellite navigation signal simulator and a monitoring computer; the monitoring computer judges whether the GNSS time synchronization system has a leap second function through monitoring whether time parameters solved and outputted by the GNSS time synchronization system are consistent with the configuration state of navigation messages outputted by the satellite navigation signal simulator. The invention also provides a leap second detection method of a GNSS time synchronization system. Based on the satellite navigation signal simulator, the use of the system and method is convenient, and the leap second verification of the GNSS time synchronization system can be realized.

Description

technical field [0001] The invention relates to the field of satellite navigation, in particular to a leap second detection system and method of a GNSS time synchronization system. Background technique [0002] As a basic guarantee platform, the GNSS time synchronization system is playing an increasingly important role in various industries in the fields of communication, electric power, and transportation. Various terminal devices require accurate time synchronization information without errors. With the construction and development of the Beidou satellite navigation system, more and more Beidou satellite systems will be used in the GNSS time synchronization system for time service. [0003] In order to ensure the accuracy and reliability of the published time, the GNSS time synchronization system must have the leap second adjustment function. Currently, 26 leap seconds have been observed around the world. The last leap second occurred between 7:59:59 and 8:00:00 on July ...

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Application Information

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IPC IPC(8): G04R20/04
CPCG04R20/04
Inventor胡立志马志超张裕胥婕徐亮董莲来磊桑昱
OwnerSHANGHAI INST OF MEASUREMENT & TESTING TECH