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Railway radio control system

A train control system and wireless control technology, which is applied to the control system of the transportation center, the components of the railway car body, the signal indicators on the vehicle, etc. Effect

Active Publication Date: 2009-03-25
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When authentication processing is performed after repeated connections, among multiple wireless communication paths, the wireless communication path that performs data communication due to train control and the wireless communication path that performs authentication processing occur. The processing mode is different for each road, so there is a problem of complicated processing in the control device on the ground

Method used

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Examples

Experimental program
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Embodiment 1

[0077] FIG. 1 shows a structural diagram of an on-vehicle-ground system according to Embodiment 1 of the present invention. In FIG. 1, a train 90, a ground control device 10 that generates information for the train 90 along with bidirectional data communication, and a ground wireless control device AP111 (hereinafter, ground wireless control device: AP) for performing wireless communication are provided as ground equipment. Between the ground control device 10 and the AP 111, several ground wireless control devices governing device AP hosts 14 are arranged along the route.

[0078]In FIG. 1 , an on-board control device 12 serving as a supervisory device of a train 90 and an on-board wireless control device STA131 (hereinafter referred to as on-board wireless control device: STA) for performing wireless communication are provided as on-board equipment. In this embodiment, four STA131, STA132, STA133, and STA134 are mounted on the train 90, and there are four wireless communica...

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Abstract

A train control system establishing radio communication between a plurality of on-train radio control apparatuses moving on a predetermined path and a plurality of ground train radio control units disposed along a predetermined path, so as to establish parallel simultaneous radio communications on a plurality of radio communication channels of various communication frequencies between the plurality of on-train radio communication apparatuses and the plurality of ground train radio control units, wherein one radio communication channel is selected out of the plurality of radio communication channels to perform an authentication request and an authentication process, wherein an encryption key obtained by the authentication process is used as a common encryption key shared by the plurality of on-train radio control units to encrypt data communication between the plurality of on-train radio control units and the plurality of ground train radio control units.

Description

technical field [0001] The present invention relates to the use of data encryption technology on wireless communication paths, the time of entry into a wireless control implementation section, in addition to the technology of providing a plurality of wireless communication paths between a train and a communication base station and realizing stable data communication without interruption. The necessary safety authentication technology is a wireless train control method and a stable and safe data communication system technology through multiple wireless communications. Background technique [0002] A "closed system" in which only one train is allowed to operate in one area is implemented, and the communication system is used for train control. [0003] In recent years, the introduction of a wireless communication system tends to reduce the cost of a railway communication system. In the United States and China, the introduction of a CBTC (Communication Based Train Control) sys...

Claims

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Application Information

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IPC IPC(8): B61L23/14
CPCB61L15/0027B61L27/0005B61L15/0036B61L27/70
Inventor 赖重毅永次由英酒井宪一田冈浩志
Owner HITACHI LTD
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