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Digital voice locomotive communication system based on main bus and standby bus

A communication system and digital voice technology, which is applied to the bus network, signal indicators on vehicles, railway signals, etc., can solve the problems of high precision machining of structural parts, interference of analog channel circuit modules, and impact on call quality and clarity. , to achieve the effect of improving voice anti-interference ability, reducing failure rate and high reliability

Pending Publication Date: 2022-04-12
CRSC COMM & INFORMATION
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AI Technical Summary

Problems solved by technology

The analog channel is easily interfered by the surrounding environment and the internal circuit modules of the locomotive wireless communication equipment, which seriously affects the quality and clarity of the call
If the shielding and anti-interference ability is strengthened through structural parts and cables, on the one hand, the cost will be greatly increased;
If a single analog channel or data transmission channel is damaged, there is no redundant backup, and the failure rate of field equipment is high

Method used

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  • Digital voice locomotive communication system based on main bus and standby bus
  • Digital voice locomotive communication system based on main bus and standby bus
  • Digital voice locomotive communication system based on main bus and standby bus

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0031] A digital audio locomotive communication system based on active and standby dual buses, its structure is as follows figure 2 As shown, it includes a handset 1 , a main control unit 2 , an exchange unit 3 and a radio unit 4 . The receiver 1 and the switching unit 3 are respectively connected to the main control unit 2, the radio unit 4 is connected to the switching unit 3, and both the main control unit 2 and the switching unit 3 are provided with d...

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Abstract

The invention relates to a digital voice locomotive communication system based on main and standby double buses, which comprises a monophone, a main control unit, an exchange unit and a radio station unit, the monophone and the exchange unit are respectively connected with the main control unit, the radio station unit is connected with the exchange unit, and the main control unit and the exchange unit are respectively provided with a double-bus interface. Compared with the prior art, the system has the advantages of being high in anti-interference capability, capable of effectively reducing the fault occurrence rate, good in expansibility, high in reliability, low in cost and the like.

Description

technical field [0001] The invention relates to the technical field of locomotive communication, in particular to a digital voice locomotive communication system based on active and standby dual buses. Background technique [0002] During the railway operation, the wireless communication equipment of the locomotive mainly carries the functions of voice call and data transmission. Currently used locomotive communication systems such as figure 1 As shown in the figure, the voice communication of the handset A, the main control unit B and the radio unit C mainly relies on the analog channel, and the voice is collected by the handset equipped with the wireless communication equipment of the locomotive, amplified by a simple operational amplifier circuit, and transmitted to the built-in vehicle analog radio station for voice transmission. The analog channel is easily interfered by the surrounding environment and the internal circuit modules of the locomotive wireless communicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40B61L15/00
Inventor 周峰丁旭
Owner CRSC COMM & INFORMATION
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