Railway mobile communication time service system based on Beidou+GPS double-signal synchronous clock

A technology for synchronizing clocks and timing systems, used in radio-controlled timers, instruments, etc., can solve the problems of low time accuracy, high circuit complexity, single external interface, etc., achieve high anti-interference performance, reduce conducted interference and radiation. the effect of interference

Pending Publication Date: 2019-02-15
CHINA RAILWAYS CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The current synchronous clock source used in the railway system is only a GPS receiver, the time accuracy is relatively low, the external interface is also single, the function is simple, and the complexity of the circuit is low, so its electrom

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  • Railway mobile communication time service system based on Beidou+GPS double-signal synchronous clock
  • Railway mobile communication time service system based on Beidou+GPS double-signal synchronous clock
  • Railway mobile communication time service system based on Beidou+GPS double-signal synchronous clock

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Example Embodiment

[0040] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0041] See Figure 1 to Figure 9 . It should be noted that the structure, ratio, size, etc. shown in the accompanying drawings in this specification are only used to match the content disclosed in the specification for the understanding and reading of those familiar with this technology, and are not intended to limit the implementation of the present invention Limited conditions, so it has no technical significance. Any structural modification, proportional relationship change or size adjustment should still fall under the present invention without affecting the effects and objectives that can be achieved by the present invention. The disclosed technical content must be within the scope of coverage. At the same time, the terms such as ...

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Abstract

The invention provides a railway mobile communication time service system based on a Beidou+GPS double-signal synchronous clock. The system comprises a power module, a Beidou/GPS antenna feed part, aBeidou/GPS receiver, a main control time keeping and time service circuit and an interface module. The power module supplies power to the Beidou/GPS receiver, the main control time keeping and time service circuit and the interface module. The system further includes a main control time keeping and time service electromagnetic compatibility circuit electrically connected with the main control timekeeping and time service circuit, an interface module electromagnetic compatibility circuit electrically connected with the interface module, and a power supply module electromagnetic compatibility circuit electrically connected with the power module. A large number of designs are made in aspects such as antenna feed protection, signal interface protection and power protection, which ensures thehigh anti-interference performance of interfaces. A large number of designs are made in the interfaces and circuits, which reduces the conduction interference and radiation interference of synchronousclock source equipment and enhances the ability to resist external harmonic current transient pulse, electrostatic discharge, electric fast transient pulse groups, surge impact and other interferences.

Description

technical field [0001] The invention belongs to the field of railway mobile communication time synchronization, and in particular relates to a railway mobile communication time service system using a Beidou+GPS dual-signal synchronous clock. Background technique [0002] The railway mobile communication time synchronization clock source has the functions of time service and time keeping, and provides high-precision and high-reliability reference time signals for the railway communication basic bearer network and various subsystems of integrated services. It is an indispensable support system for the railway communication network. [0003] As the technical requirements for high-speed rail mobile communication are getting higher and higher, traditional network services have been difficult to meet the requirements of railway development, and the railway mobile communication system needs to be further evolved. meet the requirements of the next generation of railway mobile commun...

Claims

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Application Information

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IPC IPC(8): G04R20/02
CPCG04R20/02
Inventor 伍忠东李强
Owner CHINA RAILWAYS CORPORATION
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