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Vehicle-mounted communication method and system

A vehicular communication system and vehicular communication technology, applied in wireless communication, access restrictions, electrical components, etc., can solve the problems of network expansion limitations and low reliability of vehicular communication, and achieve improved reliability and unrestricted network expansion Effect

Active Publication Date: 2013-09-18
ZTE ITS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a vehicular communication system and method to solve the problems of low vehicular communication reliability and limited network expansion in the prior art

Method used

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  • Vehicle-mounted communication method and system
  • Vehicle-mounted communication method and system

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Embodiment 1

[0027] Such as figure 2 As shown, it is a schematic structural diagram of the vehicle communication system in Embodiment 1 of the present invention. It can be seen from the figure that the vehicle communication system includes two parts: an external subsystem 11 and an internal subsystem 12 . The following describes in detail the exterior subsystem 11 and the interior subsystem 12 respectively.

[0028] Subsystem 11 outside the vehicle:

[0029] The off-board subsystem 11 includes a central communication controller 21 and a plurality of wireless routers 22, and its connection relationship is: a wireless router 22 is arranged every other distance (such as 150m to 250m) beside the track outside the vehicle to ensure that the Every zone of the train has the coverage of wireless signal; Then wireless router 22 is connected with switch 23 (Switch) by network cable, then switch 23 is connected with central communication controller 21, at this moment, central communication controll...

Embodiment 2

[0052] Embodiment 2 of the present invention also provides a vehicle communication method, such as image 3 As shown, the method includes the following steps:

[0053] Step 301: The central communication controller sends train operation control data to the on-board communication controller on the train through the wireless router.

[0054] The in-vehicle communication method involved in the second embodiment may be a communication method performed by using the in-vehicle communication system in the first embodiment.

[0055] Before this step is executed, the wireless management server in the off-vehicle subsystem needs to configure the communication parameters of the wireless router, so that subsequent data transmission can be performed correctly.

[0056] Step 302: The vehicle communication controller forwards the received train operation control data to the vehicle application server.

[0057] Step 303: The vehicle communication controller sends the train operation respons...

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Abstract

The invention discloses a vehicle-mounted communication method and a vehicle-mounted communication system. The invention is mainly characterized in that: a wireless router is arranged beside a railway and a vehicle-mounted communication controller for controlling the connection and switching between a train and the wireless router is arranged on the train, so that the connection and switching in and out of the train are controlled and led by the vehicle-mounted communication controller on the train; the possibility of faults is dispersed; even if the vehicle-mounted communication controller on one train is faulted, the failure of a sub-system outside the train is not caused, and the reliability of the vehicle-mounted communication system is improved; simultaneously, the shortage that a wireless management controller is needed to control the wireless router beside the railway is eliminated by using the management function of the wireless router, so that the capacity expansion of network is not limited.

Description

technical field [0001] The present invention relates to the communication field, in particular to a vehicle communication method and system. Background technique [0002] With the development of communication technology, especially radio technology, people began to study the rail transit system based on communication technology, especially the communication based train control system (communication based train control system, CBTC). [0003] CBTC uses wireless communication media instead of track circuits to realize two-way communication between the train and the ground control station, so as to achieve the purpose of controlling the train operation. The outstanding advantage of CBTC is to realize the two-way communication between the train and the ground control station, the transmission of large amount of information, the transmission speed is fast, it is easy to realize the mobile automatic blocking system, greatly reduce the laying of cables in the interval, reduce the o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W76/02H04W92/14
Inventor 贾琳刘凯
Owner ZTE ITS CO LTD