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Loop beacon for detecting passing of trains

A technology for detecting trains and loops. It is applied in the field of loop beacons for detecting trains passing through. It can solve the problems of poor communication, packet loss, and data transmission that cannot be transmitted in time, and achieve the effect of timely sending and receiving.

Inactive Publication Date: 2010-05-26
BEIJING DACHENG COMM SIGNAL RAILWAY TRANSIT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention is to provide a loop beacon for detecting the passage of trains, so as to solve the above-mentioned problems that when the speed of the train is fast, the communication is poor, the data cannot be transmitted in time, or data transmission packet loss occurs

Method used

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  • Loop beacon for detecting passing of trains
  • Loop beacon for detecting passing of trains
  • Loop beacon for detecting passing of trains

Examples

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Embodiment Construction

[0010] In order to clearly illustrate the solutions in the present invention, preferred embodiments are given below and detailed descriptions are given in conjunction with the accompanying drawings.

[0011] see figure 1 , figure 1 The beacon shown includes: an excitation power supply for receiving radio waves. After the electric energy generated by the excitation power supply is stabilized by a voltage stabilizing module, the electric energy is supplied to the communication chip and the single-chip microcomputer. The communication chip modulates the beacon data in the single-chip microcomputer by QFSK or GFSK. sent later.

[0012] During use, the locomotive will continuously send wireless signals. When passing through the beacon, after the beacon receives the signal, the communication chip modulates the beacon data in the single-chip microcomputer and sends it, and the locomotive receives the beacon data.

[0013] figure 1 The beacon circuit in can have many forms in the r...

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PUM

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Abstract

The invention discloses a loop beacon for detecting passing of trains, which comprises an excitation power source for receiving wireless signals; the excitation power source comprises a receiving antenna and a resonant capacitor connected with the receiving antenna to perform resonance between 100 and 300KHz; the resonant capacitor is connected with a full-wave rectifier bridge to output current; the current after the rectification of the full-wave rectifier bridge is output to a singlechip and a communication chip through a voltage stabilizing module; the singlechip sends beacon data stored in a memory through the communication chip; the working length of the receiving antenna is over 40cm, and the sending mode thereof adopts GFSK or QFSK modulation for sending; and the working frequency of the communication chip is in a frequency band of 2.4GHz. When the speed of the trains is 180km / h, the trains can still receive correct geographical information when passing the loop beacon. The loop beacon can timely send the beacon data to the trains by selecting an antenna with a corresponding length according to the speed of the trains, so that the trains acquire the beacon data.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a loop beacon for detecting train passing. Background technique [0002] When the locomotive is running, it needs to exchange data frequently with the control equipment in the ground control room, so that the driver can know the current driving position of the locomotive in time and control the locomotive in time. During the data exchange process of the current locomotive and the control equipment in the ground control room, when the vehicle speed is low, such as when the speed is about 100km / h, they can communicate and transmit the current driving position and related data to the locomotive, but when the vehicle speed is faster When the speed is 300km / h, the communication is poor, the data cannot be transmitted in time or the phenomenon of data transmission packet loss occurs, which affects the normal running of the locomotive. Contents of the invention [0003] In view...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S1/68
Inventor 刘自平左贵民刘建春高卫国刘波叶强刘路刚
Owner BEIJING DACHENG COMM SIGNAL RAILWAY TRANSIT EQUIP