基于光纤列阵薄膜传感的客流计数系统研究  

Automatic Passenger Flow Counting System Using Fiber Array Membrane Sensor

作　　者：王喆君[1] 陈抱雪[1] 隋国荣[1] 陈林[1] 矶守[2] 

机构地区：[1]上海理工大学光电学院,上海200093 [2]东京农工大学应用化学系

出　　处：《光子学报》2009年第9期2305-2309,共5页Acta Photonica Sinica

基　　金：教育部博士学科专项科研基金(20060252005)资助

摘　　要：为实现客流计数自动化,开发了一种基于新型高分子薄膜型光纤列阵感压的客流计数系统.感压原理建立在光散射强度与高分子材料密度变动的对应关系上,系统以脚底压力分布"质心"的时空变化为信息特征,该时空变化特征反映了乘客上下车时维持动态平衡的一般规律.由此设计了多种行为模式的客流跟踪、辨向和计数方法.统计实验结果表明,该客流计数系统可实现实时测试,准确率达95%以上.To realize the automation of passenger flow counting, an automatic passenger flow Counting system is developed based on the design Of a new type of optic array pressure sensor using polymer membrane. The sense of pressure is built on the principle of correlation between light scattering intensity and density changes of the polymer material. The system adopts the temporal and spatial variation of ＂centroid＂ which is extracted from the foot pressure distribution as information features. The temporal and spatial variation of ＂centriod＂ reflects a general rule of the dynamic balance which a passenger remains during the time period of getting on or off the bus. The passenger flow track, direction identify and count method is designed for a variety of passengers＇ motion behavior patterns. The experiment results show that the system can achieve real-time test,and the accurate rate of the system is more than 95%.

关 键 词：光纤传感 光纤列阵传感器 光散射 客流辨向 客流计数 

分 类 号：TN252[电子电信—物理电子学]