A long range active response loop wire set

A technology of action distance and loop line, applied in the field of railway signal automatic control, can solve the problems of difficulty in detecting and maintaining the system, and achieve the effects of high practical value, improved operability, and reduced detection difficulty coefficient.

Inactive Publication Date: 2009-10-07
BEIJING JIAODA SIGNAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The invention provides an active response loop device with a long action distance, which is used to solve the problems in the prior art that it is difficult to change the vehicle control command in real time and to detect and maintain the system

Method used

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  • A long range active response loop wire set
  • A long range active response loop wire set
  • A long range active response loop wire set

Examples

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Embodiment Construction

[0018] The structure of the current point transponder system can be found in figure 2 As shown, the vehicle-mounted interrogator continuously transmits 27MHz energy to the ground transponder through the vehicle-mounted antenna, the downlink power carrier frequency is sent: 27.095MHz±5kHz, and the transponder information is received, the uplink signal is received: carrier frequency: 4.234MHz±200kHz, Frequency deviation: 282.24KHz±5%, modulation rate: 564.48Kbps±2.5%, forming error-free messages. Provide transponder information to the train control system through the isolated RS485 / CAN interface. Output self-test information and decoding information through isolated RS485 for recording and remote monitoring. The vehicle antenna is a duplex antenna that can send 27.095MHz energy signals to the ground transponder and receive the uplink returned by the ground transponder. Frequency-shift keying FSK (Frequency-shift keying) modulates the signal and transmits the signal to the vehi...

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Abstract

The invention discloses a long range active response loop wire set, which is used in the field of railway signal automatic control to account for the difficulty of changing the command of controlling vehicles and answering machine receiving, detecting and maintaining system in the existing technology. This set includes electrical design which is compatible to European standard about the basic function of the active answering machine, and the elongated active response loop wire design. In this invention, the active response loop wire set is installed in the middle of two steel rails to replace standard answering machine, the loop wire of this set is as long as 4 meters, the parameter of electric resonance point is 4.23 MHz, this set can send 4.23 MHz FSK carrier frequencies semaphore which is compatible to standard answering machine to railway engine. After using this invention, the rigor request of railway engine positional accuracy can be relaxed, which is indicated that as long as the railway engine stops at the active response loop wire set of 4 meters long, information continuously received can be implemented, greatly reduces the railway engine position request when change the command of controlling machine and the answering machine implements receiving, detecting, maintaining and employing.

Description

technical field [0001] The present invention relates to the field of automatic control of railway signals, in particular to an innovatively designed long-action-distance active response to the problems encountered in the application of the European standard transponder system in our country about the continuous transmission of vehicle control instructions and equipment inspection and maintenance. Ring device. Background technique [0002] In the train control system of urban rail transit, the locomotive positioning is realized through the transponder system, and the shunting command is realized through wireless data transmission. When the wireless data transmission system fails, the wireless shunting is realized through the active transponder. command supplement. For example, when the locomotive turns back, if the wireless system fails, it is necessary to transmit the shunting order through the active transponder, but in the existing situation, the effective range of the tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L23/34B61L1/18
Inventor 李伟寇永砺
Owner BEIJING JIAODA SIGNAL TECH
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