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Air interface monitoring system for automatic train protection (ATP) system

A monitoring system and air interface technology, applied in the transmission system, transmission monitoring, electrical components, etc., can solve the problem of not seeing the products detected by the standing wave, and achieve the effect of improving the stability of the application

Inactive Publication Date: 2011-02-16
CRSC COMM & INFORMATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many products on the market for constant signal standing wave detection, but there are no products for mobile station standing wave detection with automatic power adjustment in frequency hopping mode

Method used

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  • Air interface monitoring system for automatic train protection (ATP) system
  • Air interface monitoring system for automatic train protection (ATP) system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] Such as figure 1 As shown, an ATP air interface monitoring system includes a host, two radio frequency jumpers, and a power cord, and the host is connected to the two radio frequency jumpers and the power cord respectively.

[0032] The host includes a main control board 1, a power module 6, an EMI filter 2, a liquid crystal display 3, a first dual directional coupler 4, a second dual directional coupler 5, a first input interface IN1, and a first output interface OUT1 , a second input interface IN1, a second output interface OUT1, and a power supply interface, the main control board 1 is provided with a first forward interface, a second forward interface, a first reverse interface, and a second reverse interface;

[0033] The input ends of the first dual-directional coupler 4 are respectively connected to the first input interface IN1 and the first forward interface, and the output terminals of the first dual-directional coupler are respectively connected to the first ...

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PUM

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Abstract

The invention relates to an air interface monitoring system for an automatic train protection (ATP) system. The monitoring system comprises a host machine, two radio frequency jumpers and a power wire, wherein the host machine is connected with the two radio frequency jumpers and the power wire. Compared with the prior art, the monitoring system has the advantages of monitoring and analyzing the performance of an air interface, monitoring the standing-wave ratio of the air interface of the ATP system and the transmitting power of a master timer (MT) and the like.

Description

technical field [0001] The invention relates to an interface monitoring system, in particular to an ATP air interface monitoring system. Background technique [0002] In wireless communication, the quality of the standing wave of the antenna will determine the coverage of the RF signal, and in the high-power RF signal, when the standing wave deteriorates, there will be high-power reflections, which will cause the signal coverage to become smaller or severely damaged RF devices. [0003] In C3 mode, it is very important to monitor the RF interface of the on-board ATP device. The vehicle-mounted ATP device transmits information and data through the GSM-R channel module. GSM-R belongs to the TDMA (Time Division Multiple Access) system. Each carrier carries 8 time slots, and each time slot occupies 148 bits, which is equivalent to 577 μs. [0004] At present, there are many products on the market for constant signal standing wave detection, but there is no product for mobile s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04W24/08H04W24/04
Inventor 钱进任朝辉林中华
Owner CRSC COMM & INFORMATION