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A rail transit state monitoring multi-sensor node layout optimization method and system

A rail transit and multi-sensor technology, applied in forecasting, data processing applications, computing, etc., can solve the problems of difficult balance between monitoring performance and communication performance, and different influence capabilities of system operation performance

Active Publication Date: 2019-06-07
BEIJING JIAOTONG UNIV
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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.

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  • A rail transit state monitoring multi-sensor node layout optimization method and system
  • A rail transit state monitoring multi-sensor node layout optimization method and system
  • A rail transit state monitoring multi-sensor node layout optimization method and system

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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 rail transit state monitoring multi-sensor node layout optimization method and system. The method comprises firstly, determining the monitoring range of the rail transit system state and the type of a monitoring object, Wherein the monitoring range is divided into a plurality of logic areas, each logic area comprises a plurality of monitoring intervals, and the deploymentpositions of various sensors in each monitoring interval are initialized; Secondly, constructing a node optimization layout weight function; Thirdly, establishing a state sensing capability node utility function model for representing the state sensing capability of each node; Establishing a node communication performance model representing the network transmission capability of each node, and constructing a comprehensive optimization utility function of the rail transit system; And finally, determining the optimal sensor node of the rail transit system according to the comprehensive optimization utility function and a preset optimization algorithm. According to the invention, the state monitoring and sensing capability and the information transmission capability are effectively improved.

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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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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