Time synchronization alignment method and device for measuring and calculating time scale through Beidou GPS signal

Abstract

The invention provides a time synchronization alignment method and device for measuring and calculating a time scale through a Beidou GPS signal. The method comprises the steps: enabling a time alignment device to preset a time scale updating period, carrying out the signal detection of each satellite node in a signal coverage range through the time alignment device in each time scale updating period; obtaining an effective measurement time group corresponding to each satellite node, wherein the obtaining method is characterized by performing signal detection to correct a time error value till that the error correction rule is met; and obtaining the time scale according to the effective measurement time group corresponding to each satellite node. And according to the time scale measurement and calculation fusion period, fusion calculation is performed on the time scale of the current time scale measurement and calculation fusion period to obtain a fused time scale. The method and the device have the advantages that the implementation scheme is simple, the precision is high, and the Beidou GPS double satellite signals are comprehensively corrected.

Description

technical field [0001] The invention belongs to the technical field of time alignment, and in particular relates to a time alignment method and device for measuring and calculating time scales through Beidou GPS signals. Background technique [0002] Various control systems, information systems, and equipment in industry, commerce, and civil use have many scenarios that require time signals as driving signals for operation, or time stamps as a reference for judgment and processing. In these scenario applications, the same accuracy of time signals and time stamps in all aspects is a necessary prerequisite for the correct operation of the business. [0003] For making the time signal accurate, there are various attempts and solutions in the prior art, including: (1) the method of network NTP service, which is used more in civil and commercial use, but due to its low precision and the need for Ethernet infrastructure facilities, which are not feasible in the industry; (2) the ...

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Problems solved by technology

[0003] For making the time signal accurate, there are various attempts and solutions in the prior art, including: (1) the method of network NTP service, which is used more in civil and commercial use, but due to its low precision and the need for Ethernet infrastructure facilities, which are not feasible in the industry; (2) the time synchronization command of a specific industrial protocol (such as power 101), which can be used in an industrial environment, but it depends on the accuracy of the master station time, which may force the master station to connect to the Internet. , civilian use is not common

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