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GPS-based method for handover switching of high speed train

A technology for handover and high-speed trains, applied in electrical components, wireless communication, etc., can solve the problems of communication interruption, handover delay, lag, etc., and achieve the effect of solving communication interruption, solving handover delay and inaccuracy

Active Publication Date: 2012-01-11
CRSC COMM & INFORMATION +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At the same time, the switching standard based on signal strength requires data measurement and processing. Considering the high-speed running of the train, even if certain means are used to reduce the time and data of wireless link measurement, it will cause switching delays, lags, etc. situation, resulting in interruption of communication

Method used

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  • GPS-based method for handover switching of high speed train
  • GPS-based method for handover switching of high speed train

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Embodiment

[0035] A high-speed train handover method based on GPS, comprising the following steps:

[0036] 1) Initialization;

[0037] 2) Train monitoring operation;

[0038] 3) Calculate the current mileage mark of the train;

[0039] 4) Judging whether the current kilometer mark reaches the value that needs to be switched, if yes, the train performs handover, if not, return to step 2).

[0040] Such as figure 1 As shown, described step 3) calculating the current mileage mark of the train comprises the following steps:

[0041] 31) GPS receiver acquires train information;

[0042] 32) Set the current train position as point C;

[0043] 33) Obtaining point A and point B adjacent to point C by querying train line data;

[0044] 34) Calculate the mutual distances ab, ac, and bc of A, B, and C;

[0045] 35) Determine whether C is between A and B, if yes, execute step 38), if no, execute step 36);

[0046] 36) Determine whether C is after B, if yes, execute step 37), if no, return t...

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Abstract

The invention relates to a GPS-based method for handover switching of a high speed train. The method comprises the following steps that: (1), initialization is carried out; (2), operation of a train is monitored; (3), a current kilometer post of the train is calculated; (4), it is determined whether the current kilometer post has reached a numerical value that needs switching; if so, handover switching is carried out on the train; if not, go back to the step (2). Compared with prior art, the technology employed in the invention enables the method has the following advantages that: problems that instability during the switching and communication interruption caused by time lag in the prior art are solved.

Description

technical field [0001] The invention relates to a method for handover of a train, in particular to a method for handover of a high-speed train based on GPS. Background technique [0002] With the construction of high-speed railways and passenger dedicated lines in my country, the wireless communication system of high-speed railways has also been greatly developed. However, since the speed of high-speed trains is basically above 250Km / h, handovers frequently occur during train operation. It has a great impact on the service quality of the system and driving safety. How to make the switching time shorter, the switching success rate higher, and higher reliability and effectiveness are all technical problems that need to be solved in high-speed rail wireless communication. [0003] The handover process mainly includes four processes of measurement, triggering, selection and execution. Among them, the triggering process and the selection process are completed internally, and this...

Claims

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Application Information

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IPC IPC(8): H04W36/08
Inventor 陈维明邹劲柏郝俊张晓钧王力陆犇卜智勇屈海宁杨刚琚诚
Owner CRSC COMM & INFORMATION
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