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Track circuit code sending system

A track circuit and code sending technology, applied in the field of rail transit, can solve problems such as increasing equipment costs

Active Publication Date: 2014-02-26
BEIJING RAILWAY SIGNAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, this application provides a track circuit coding system to solve the problem of increasing equipment costs caused by the redundant design of two code sending devices for each track section in the prior art

Method used

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  • Track circuit code sending system
  • Track circuit code sending system

Examples

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Embodiment 1

[0051] The first code sending device 101 and the second code sending device 102 in the first embodiment have the same structure. The following embodiment, the second embodiment, describes the first code sending device 101. For description, please refer to the second embodiment. see image 3 , which shows a partial structural schematic diagram of Embodiment 2 of a rail line code issuing system provided by the present application. The first code issuing device 101 in Embodiment 1 may include: a DC power supply 301, a digital signal processor 302, a relay drive Circuit 303, first bridge drive circuit 304, first H bridge circuit 305, first filter circuit 306, first overcurrent detection circuit 307, first acquisition feedback circuit 308, second bridge drive circuit 309, second H bridge circuit 310. A second filter circuit 311, a second overcurrent detection circuit 312, and a second acquisition feedback circuit 313; wherein:

[0052] The DC power supply 301 outputs a DC signal;...

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PUM

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Abstract

The invention discloses a track circuit code sending system which comprises a first code sending device, a second code sending device, a first relay and a second relay. The first relay controls a first normally-open switch group to output an electric signal sent by the first code sending device or controls a first normally-closed switch group to output an electric signal sent by the second code sending device, the two signals can both detect a first section track, the second relay controls a second normally-open switch group to output an electric signal sent by the second code sending device or controls a second normally-closed switch group to output an electric signal sent by the first code sending device, and the two electric signals can both detect a second section track. Compared with the prior art that each section track uses two code sending devices, every two section tracks use two code sending devices, and the number of the code sending devices is reduced. Even though the relays with the same number as the code sending devices are increased, the cost of the relays are lower than that of the code sending devices, and accordingly device cost can be saved.

Description

technical field [0001] The application relates to the technical field of rail transit, in particular to a code sending system for rail circuits. Background technique [0002] The track circuit is an inspection system in the field of rail transit technology, which uses the track as a medium to transmit electrical signals to check whether the train occupies this section of track. The track circuit includes a code transmitting device and a decoding device, wherein the main function of the code transmitting device is to generate an electrical signal and send the electrical signal to the track, and the decoding device mainly receives the electrical signal transmitted through the track and performs After calculation and analysis, the result information of whether there is a train passing on the track in the section is obtained. The result information is used as a signal to control the operation of other trains, to prevent collisions caused by multiple trains running on the same s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L1/18
Inventor 郜志强郑霄韩雪松黄聪月翟一霖郭曦赵寰宇
Owner BEIJING RAILWAY SIGNAL
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