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Wireless channel access method applicable to railway operation and other scenes

A channel access method and channel access technology, which can be used in the field of wireless channel access in railway operations and other scenarios, and can solve the problems of operators' personal safety, train operation safety threats, information exchange obstacles, etc.

Active Publication Date: 2013-07-31
陈波
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This not only consumes too much manpower, but also due to various uncertain human factors, such as the occasional negligence of the dispatcher, or obstacles, delays, misunderstandings, etc. security poses a threat

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  • Wireless channel access method applicable to railway operation and other scenes
  • Wireless channel access method applicable to railway operation and other scenes
  • Wireless channel access method applicable to railway operation and other scenes

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Embodiment Construction

[0038] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0039] figure 1 is a typical scenario of a wireless network according to the present invention. Such as figure 1 As shown, the problem to be solved by the present invention is: as any ordinary node A1 in the network, in the case that the topology of the wireless network changes arbitrarily and the node link bandwidth in the network is limited, it is hoped to obtain all other The location of nodes A2-A6. An application background of this requirement is: in my country's railway marshalling operations, some of the goods arrive at the station or the empty train carriages have to leave the train, while the other part of the train carriages that have been filled with goods have to be attached to the train. After the wh...

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Abstract

The invention discloses a perception-tracking wireless node channel access method applicable to railway operation and other scenes. The method comprises the following steps: dividing all available channel time into consecutive superframes, and dividing each superframe into a fixedly-allocated channel access period and a requiredly-allocated channel access period; in the fixedly-allocated channel access period, fixedly allocating a time slot for each node; using a channel through the fixedly-allocated time slot by each node, and applying a channel time in the requiredly-allocated channel access period as required; according to a universal time coordinated within a day and a superframe period, determining the starting time of each superframe, wherein each node in a network knows the starting time of each superframe for certain; and allocating fixed and unique identifiers for all the nodes, and according to the identifiers, determining the sequence of fixedly-allocated time slots of the nodes. The method has the advantages as follows: the transmission conflict between the nodes is eliminated to the maximum extent; the power consumption can be reduced easily and the bandwidth efficiency can be easily improved; and the method is applicable to situational perception of the railway operation and other scenes.

Description

technical field [0001] The present invention relates to a railway operation safety warning method and system, in particular to a method for warning non-driver operators and the position and operation status of operating devices to railway train drivers participating in the operation and train drivers entering the work area, The invention relates to a method and a system for non-driver operators to warn train running status so as to ensure operation safety, belonging to the technical field of railway informationization. Background technique [0002] In the railway marshalling operation, a part of goods arrive at the station or an empty train car will be separated from the train, while another part of the train car that has been filled with goods will be attached to the train. After the whole process is completed, the train completes the marshalling and leaves the work area. [0003] During the entire operation process, on the one hand, the operation is carried out on the tra...

Claims

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Application Information

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IPC IPC(8): H04W40/02H04W72/04H04W74/08B61L23/06
CPCY02B60/50Y02D30/70
Inventor 陈晨陈曦陈波
Owner 陈波
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