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Balise signal simulator

A technology of signal simulator and transponder, which is applied in railway signal and safety, railway car body parts, transportation center control system, etc., to achieve the effect of compact equipment, small footprint and easy operation.

Active Publication Date: 2018-11-20
BEIJING JIAODA SIGNAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of BTM system scene test, the present invention provides a transponder signal simulator implementation scheme, which can simulate various transponder signals

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 Simulate various electrical characteristics of the transponder signal

[0034] The user can set the center frequency, frequency offset, and average rate of the transponder signal. Within the adjustable range, the user can set it at will, which can be set to a nominal value or an extreme FSK signal. After downloading the message, in any mode (interference mode) to start code transmission, which can systematically evaluate the ability of BTM to process transponder signals with electrical characteristics in various situations. For example, it can be used to test the frequency offset of the BTM, and check the performance of the BTM filter module and demodulation module.

Embodiment 2

[0035] Embodiment 2 Simulate transponder transmission messages decipherable and undecipherable

[0036] Users can set the center frequency, frequency offset, and average rate as nominal values, download messages that meet the coding specifications, and start code sending in any code sending mode (except interference mode) to test whether the BTM can be decoded normally; download various For messages that do not conform to the coding specification, start code sending in any code sending mode (except interference mode) to test whether the BTM can reject error messages.

Embodiment 3

[0037] Embodiment 3 Simulate the strongest transponder and the weakest transponder

[0038] After the user has set the center frequency, frequency offset, and average rate, downloaded the message, and started sending codes in any mode (except the interference mode), the output signal energy can be adjusted by adjusting the energy knob on the RSG host. The range includes, but is not limited to, the weakest transponder energy to the strongest transponder energy. Can be used to test the signal reception of the BTM to the weakest and strongest transponders.

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PUM

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Abstract

The invention provides a balise signal simulator, comprising an upper computer, an RSG (Reference Signal Generator) host and an RSG reference ring. A user sets a balise signal electrical characteristic, a balise action range, train speed and balise signal envelope amplitude through utilization of upper computer software and sends the parameters to the RSG host. Balise messages are downloaded to the RSG host through utilization of the upper computer software. The user selects a code sending mode and starts / stops sending codes through utilization of the upper computer software. The RSG host receives configuration commands of various parameter settings of the upper computer software, then controls hardware to generate corresponding signals, stores messages, and sends balise signals accordingto a current code sending mode, when a starting command of the upper computer software is received. The balise signals generated by the RSG host are converted into electromagnetic waves through utilization of the RSG reference ring and then are sent out. A user can generate balise application scenes or balise performance wanting to simulate through flexible use of various code sending modes and parameter settings.

Description

technical field [0001] The invention relates to a device capable of simulating various transponder signal scenarios. Background technique [0002] Transponder transmission system is currently one of the core equipment of CTCS-2, CTCS-3, and CBTC systems, and it can also be applied to any other train operation control system that requires train-ground communication and precise positioning. Among them, the balise transmission module (BTM), the main function is to receive and process the information of the ground balise through the antenna, obtain the balise user message and send it to the train operation control system. BTM needs to make correct scene judgment and processing according to the received balise signal, and send balise message according to the requirements of the train operation control system. BTM needs to be fully tested before it is officially used. It is necessary to use transponders to simulate different scenarios to test BTM. However, the following two conv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/59H04B1/40B61L27/00
CPCH04B1/40H04B1/59B61L27/20
Inventor 冉娜娜王耀辉郑国超
Owner BEIJING JIAODA SIGNAL TECH
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