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Multi-sensor node layout optimization method and system for rail transit status monitoring

A rail transit, multi-sensor technology, applied in forecasting, data processing applications, computing, etc., can solve the problems of difficulty in taking into account monitoring performance and communication performance, and the ability to influence system operation performance is different, so as to improve the ability of state monitoring and perception. and the effect of information transmission capacity

Active Publication Date: 2021-08-03
BEIJING JIAOTONG UNIV
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  • Claims
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Problems solved by technology

However, it is difficult to balance monitoring performance and communication performance, and different monitoring locations and monitoring objects have different influences on system operation performance, which brings new challenges to the layout of wireless monitoring network nodes.

Method used

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  • Multi-sensor node layout optimization method and system for rail transit status monitoring
  • Multi-sensor node layout optimization method and system for rail transit status monitoring
  • Multi-sensor node layout optimization method and system for rail transit status monitoring

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Embodiment Construction

[0068] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0069] refer to figure 1 , shows a flow chart of a rail transit state monitoring multi-sensor node layout optimization method, the specific method comprising:

[0070] Step 101, determine the monitoring range A of the status of the rail transit system, and the type N (1, 2, ..., n) of the monitoring object; and according to the geographical characteristics of the monitoring range and the scope of action of various monitoring objects, the monitoring range A is divided into n logical areas [A 1 ,A 2 ,...,A n ], each logical area contains k monitoring intervals a, and initializes the d...

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Abstract

The invention discloses a multi-sensor node layout optimization method and system for rail transit state monitoring. The method includes: first, determining the monitoring range of the state of the rail transit system, and the type of the monitoring object; and dividing the monitoring range into a plurality of logical areas, each logical area includes a plurality of monitoring intervals, and initializing each monitoring interval The deployment position of various sensors; secondly, construct the weight function of optimal layout of nodes; thirdly, establish the node utility function model of state perception ability that characterizes the state perception ability of each node; establish the node communication performance model that characterizes the network transmission ability of each node, and A comprehensive optimization utility function of the rail transit system is constructed; finally, an optimal sensor node of the rail transit system is determined according to the comprehensive optimization utility function and a preset optimization algorithm. The invention effectively improves the state monitoring perception ability and information transmission ability.

Description

technical field [0001] The invention relates to the technical field of wireless communication for rail transit state monitoring, in particular to a method and system for optimizing the layout of multi-sensor nodes for rail transit state monitoring. Background technique [0002] Rail transit has become one of the main ways for passengers to travel efficiently and save energy. With the increase of operating mileage, the improvement of operating speed and the rapid development of information technology, higher requirements are put forward for the safety and reliability of system operation. Therefore, a dedicated rail transit infrastructure and its operating environment status monitoring system is required to accurately perceive, real-time transmit, and accurately identify system operating status information, and provide rich and complete data and technical support for safe and reliable train operation and decision support. At present, the online monitoring system of rail trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/38G06Q10/04
Inventor 贾利民马小平董宏辉秦勇张瀚青邹文芳
Owner BEIJING JIAOTONG UNIV
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