A method and device for evaluating the reliability of a train control data communication system
A data communication system and reliability technology, applied in the field of rail transit, can solve the problems of reduced train operation efficiency, impact on train operation, frequent information transmission, etc.
Active Publication Date: 2022-03-01
北京城市轨道交通咨询有限公司
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Problems solved by technology
Among them, due to the many interfaces between the subsystems of the CBTC system and the frequent information transmission, data communication is of great significance to ensure the safe and efficient operation of the train. Between the subsystems, the train control data will not be transmitted correctly, which will affect the train operation and reduce the efficiency of the train operation
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[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making...
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The present invention provides a method and device for evaluating the reliability of a train control data communication system, comprising: sending a data packet through a sending end; acquiring the transmission delay of a data packet received by a receiving end, and judging time according to the transmission delay and interruption of packet transmission , determine the number of valid data packets; determine the number of lost packets according to the packet loss and packet transmission interruption judgment time within the no-data receiving time of the receiving end; obtain the reliability of data packet transmission based on the number of valid data packets, the number of lost packets, and the number of data packets ; Trigger the external signaling system to send signaling control information to the train control data communication system, determine the number of successful communications based on the signaling execution time and communication limit time of the train control data communication system; obtain information based on the number of successful communications and the total number of communications Transmission reliability: Based on the reliability of data packet transmission and information transmission, the reliability of the train control data communication system is obtained. It can realize the evaluation of the communication reliability of the train control data communication system.
Description
technical field [0001] The invention relates to the technical field of rail transit, in particular to a method and device for evaluating the reliability of a train control data communication system. Background technique [0002] Urban rail transit using new energy has large capacity, fast speed, safety and reliability, and high transport efficiency. It can effectively relieve the pressure of urban road traffic and occupies an important position in the lives of Chinese residents. [0003] CBTC (Communication Based Train Control) system is an important guarantee for the safe operation of urban rail transit trains. In order to ensure the efficient operation of the train, the CBTC system is divided into multiple subsystems, and the subsystems work together to realize the operation control of the train. Among them, due to the many interfaces between the subsystems of the CBTC system and the frequent information transmission, data communication is of great significance to ensure ...
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IPC IPC(8): H04L43/0829H04L43/0852H04L43/0876H04L43/08
CPCH04L43/0829H04L43/0852H04L43/08H04L43/0876
Inventor 田桂艳齐航蒲豫园倪集忠田昉王乃旭麻海涛
Owner 北京城市轨道交通咨询有限公司