Train control vehicle-mounted equipment access process reliability evaluation method based on Petri network
An on-board equipment and reliability technology, applied in instruments, safety devices, electrical components, etc., to facilitate process optimization and performance evaluation
Active Publication Date: 2021-03-12
BEIJING JIAOTONG UNIV +1
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Problems solved by technology
At present, there is no research on applying the Petri net modeling analysis method to the access process of train control equipment
Method used
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[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0036] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...
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The invention provides a train control vehicle-mounted equipment access process reliability evaluation method based on Petri network, which comprises the steps of carding a logic process, and finishing process design of a train control data communication system vehicle-mounted equipment access process; establishing a train control data communication system test platform, acquiring performance parameters of a train control data communication system, establishing a DSPN basic model for the vehicle-mounted equipment access process of the train control data communication system, and performing simulatiom on the DSPN basic model on the basis of the performance parameters of the train control data communication system, thereby acquiring a reliability index of the access process of the train control data communication system vehicle-mounted equipment. In the technical scheme, factors influencing reliability indexes are analyzed by changing performance parameters of the train control data communication system, the process design of the access process of train control data communication vehicle-mounted equipment is perfected, and whether the access process and parameters of the vehicle-mounted equipment meet the reliability requirements of the train control system or not is judged. The method has universality, is not limited to a train control system, and can be suitable for different equipment and communication system access processes.
Description
technical field [0001] The invention relates to the field of communication technology and the field of reliability analysis, in particular to a reliability evaluation method for the access process of vehicle-mounted equipment based on Petri nets. Background technique [0002] With the development of high-speed railways and the introduction of new infrastructure policies, the next-generation mobile communication system for railways, namely 5G-R networks, is currently being developed. The train control service is the most important part of the railway operation management system. The change of bearing network and the demand of IP make the migration of the train control service require the redesign of the business process of train-ground data transmission. [0003] The reliability of the communication system is crucial to the safety and operation efficiency of railway trains. It is clearly stated in the railway broadband mobile communication system requirements specification th...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G06Q10/06G06Q50/30H04W12/00H04W12/08
CPCG06Q10/0639H04W12/08G06Q50/40
Inventor 蒋文怡于瑶佳丁建文孙斌林思雨钟章队
Owner BEIJING JIAOTONG UNIV