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Train communication system and method based on AP (Assess Point) switching

A train communication and train technology, applied in the field of train communication systems, can solve problems such as large AP switching delay, and achieve the effect of simplifying function configuration

Inactive Publication Date: 2011-07-06
XIAN UNIV OF TECH
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Problems solved by technology

[0010] The purpose of the present invention is to provide a train communication system based on AP switching. By adding a wireless controller to the control center layer under the framework and planning communication channels in the wireless network on the trackside layer, the existing control system is solved. The problem of large delay in AP switching

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  • Train communication system and method based on AP (Assess Point) switching
  • Train communication system and method based on AP (Assess Point) switching
  • Train communication system and method based on AP (Assess Point) switching

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Embodiment Construction

[0054] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] The present invention is based on the structure of the AP-switched train communication system, such as figure 1 As shown, it includes a central layer 1, a trackside layer 2, and a vehicle-mounted layer 3 through wireless communication in sequence. The central layer 1 includes a master wireless controller 6 and a slave wireless controller 7 connected to the control center server 4 through a backbone network 5. The trackside layer 2 includes multiple AP8s linearly distributed along the track, the on-board layer 3 includes equipment for collecting train running status information and wireless communication equipment, and the on-board layer 3 communicates with multiple AP8s through STA (train on-board wireless unit).

[0056] 1. When the STA (train on-board wireless unit) in the vehicle-mounted layer 3 does not undergo AP switching, the no...

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Abstract

The invention discloses a train communication system and method based on AP (Assess Point) switching. The train communication system comprises a central layer, a trackside layer and a vehicle-mounted layer which are in wireless communication in sequence, wherein the central layer comprises a master wireless controller and an auxiliary wireless controller respectively connected with a server through a backbone network, the trackside layer comprises two or more APs linearly distributed beside a track, and the vehicle-mounted layer communicates with the APs through an STA (single thread apartment). As for the rain communication system and method based on AP switching, firstly, the architecture of a CBTC (communication based train control) system is improved firstly, the wireless controller is introduced on the central control layer of a train, the functional configuration of APs is simplified so that other functional configurations of the APs are transferred upwards and the functions are intensively realized in the wireless controllers; and secondly, a communication channel for the APs and the STA is designed, and the STA can work without searching an appropriate communication channel in the detection stage.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a train communication system based on AP switching, and also relates to a communication method using the communication system. Background technique [0002] The communication-based train operation control system (CBTC) controls and supervises trains through vehicle-ground two-way data communication, which enhances the operation and management of train operation safety and improves the safety and transportation efficiency of trains. It is a train operation control system direction of development. Some European countries have applied wireless communication technology to the CBTC communication subsystem, among which IEEE802.11B technology has gradually become the first choice for the wireless CBTC communication subsystem due to its maturity, low cost, and high bandwidth. However, in the process of applying wireless communication technology to the CBTC communicatio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W36/32
Inventor 黑新宏张志刚王磊高金梨马维纲
Owner XIAN UNIV OF TECH
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