Sensor Networks Hierarchical Optimization Model for Security Monitoring in High-Speed Railway Transport Hub

Zhengyu Xie,Yong Qin

doi:10.1155/2015/951242

Abstract

We consider the sensor networks hierarchical optimization problem in high-speed railway transport hub (HRTH). The sensor networks are optimized from three hierarchies which are key area sensors optimization, passenger line sensors optimization, and whole area sensors optimization. Case study on a specific HRTH in China showed that the hierarchical optimization method is effective to optimize the sensor networks for security monitoring in HRTH.

Highlights

With the rapid development of high-speed railway in China, many modern high-speed railway transport hub (HRTH) have been built to match the developing demands
The basic workflow of system includes the following: (i) data acquisition: distribute surveillance sensors and develop a sensor network; (ii) data transmission: choose suitable approaches to transmit data acquired from the sensor networks; (iii) data processing: utilize efficient image processing method to process the data acquired from the sensor networks and obtain processing result based on the demands of security monitoring; (iv) data dissemination: select various channels to disseminate the security monitoring information
The sensor networks optimization problem for security monitoring in HRTH belongs to the art gallery problem (AGP) which was first proposed in 1973 in a conversation between Klee and Chvatal [1]

Summary

Introduction

With the rapid development of high-speed railway in China, many modern HRTHs have been built to match the developing demands. As a vital node of passenger transport net, HRTH is an important distribution place of massive passenger flow. With the increase of high-speed railway operation mileage, the distribution quantity of passengers will be sustained to increase sharply, which leads HRTHs to confront severe challenges in passenger flow security monitoring. The video surveillance system is the main security monitoring approach used in HRTH. The basic workflow of system includes the following: (i) data acquisition: distribute surveillance sensors and develop a sensor network; (ii) data transmission: choose suitable approaches to transmit data acquired from the sensor networks; (iii) data processing: utilize efficient image processing method to process the data acquired from the sensor networks and obtain processing result based on the demands of security monitoring; (iv) data dissemination: select various channels to disseminate the security monitoring information. As a foundation of other parts, the sensor networks have important influences on other parts It is necessary for HRTH security monitoring to optimize the sensor networks. A case study is reported in Section 5 and Section 6 covers the conclusion

Literature Review

Problem Description

Sensor Networks Hierarchical Optimization Model

A Case Study

Conclusion