Beidou and GPS (Global Positioning System) dual-mode timing embedded time synchronization equipment and software design method

Abstract

The invention discloses Beidou and GPS (Global Positioning System) dual-mode timing embedded time synchronization equipment and a software design method. The Beidou and GPS (Global Positioning System) dual-mode timing embedded time synchronization equipment takes a programmable logic device, a Beidou receiver, a GPS receiver and an embedded microcontroller as a core, and is also provided with an external hardware circuit integrated serial port, an IRIG-B (Inter-Range Instrumentation Group) code input isolation module, an IRIG-B (DC(Direct Current)) code differential output module, an IRIG-B (AC(Alternating Current)) code hardware output module and an IRIG-B (AC) code input decoding module, wherein the embedded microcontroller is connected with an embedded key and a liquid crystal display; an IRIG-B code system is designed by utilizing the programmable logic device and the embodied microcontroller; the current modes, the current time information and the mode states of the five modes, namely, GPS, Beidou, DC code decoding, AC code decoding and time keeping are integrated into a code stream, is transmitted to the embedded microcontroller, is subjected to serial port processing, and is displayed on the liquid crystal display; the requirement on integrating the functions of multi-satellite timing, high-precision time synchronous code encoding outputting and inputting decoding, as well as real-time time information display and mode switching is met.

Description

technical field [0001] The invention belongs to the technical field of satellite timing, and in particular relates to a device for realizing time synchronization by adopting Beidou and GPS dual-mode switching technology and a software design method for its internal processor. Background technique [0002] Time synchronization equipment is a device that provides reference time information and frequency information to the measurement and control system. Only when the time synchronization between the measurement and control systems is realized can all other activities be carried out. The core of its technology is timing synchronization and time code transmission. With the emergence and rapid development of many timing methods, time synchronization technology will eventually continue to advance. [0003] The transmission of time code is mainly to design and use the IRIG-B code, and the format standard is customized by the Inter-Range Instrumentation Group (IRIG) under the US Ran...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above problems, the present invention provides a Beidou and GPS dual-mode time service embedded time synchronization device and software design method, the Beidou and GPS dual-mode time service embedded time synchronization device and software design method overcome the above problems such as time synchronization The technical defects such as single timing mode and function and low time accuracy meet the needs of multiple satellite timing modes switched intelligently through software, high-precision time synchronization code encoding output, time synchronization code input decoding, and real-time time information display and mode switching All-in-one requirements

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