摘要
针对大城市日益严重的停车难问题,本文设计并实现了一种基于无线传感器网络的智能停车诱导系统,以帮助用户快速找到合适的停车位.本系统采用无线地磁节点监测停车位状态,并通过无线传感器网络与有线局域网相结合的方式进行数据传输.为了满足停车场应用场景的低功耗要求,提出一种基于汇聚树协议(Collection Tree Protocol)的路由协议P-CTP,用以最小化无线传感器网络数据传输的能量消耗,提高系统的生存周期,并保证无线数据传输的可靠性.本文描述了系统的整体架构,并对监测模块的软硬件实现及P-CTP协议的原理与实现进行了详细介绍与分析,通过原型系统实验,评估了系统的能量消耗、丢包率和网络延时等.实验结果表明,系统性能能够满足停车场应用的需求.
To cope w ith theever grow ing parking problem ofmetropolises,this paper designs and realizes a parking guidance and information system based on w ireless sensor netw ork（ WSN） for helping users quickly find a suitable parking space. In this system,w ireless magneticnodesare used to monitorstates of parking spaces and the monitored datais transmitted by an integration of WSN and w ired local area netw ork. To meet the low pow er requirement in parking scenarios,an improved Collection Tree Protocol（ CTP）,named P-CTP,is proposed. P-CTP is able to minimize energy consumption of w ireless communication in WSN,prolong the lifetime of the system,andensure the reliability of w ireless data transmission. The paper describes the overall system framew ork and gives a detailed introduction and analysis aboutthe implementation of hardw are and softw are in monitoring module as w ell as the principle and realization of P-CTP. Through the prototype experiments,w e evaluate performance of the system including energy consumption,packet loss rate and netw ork delay,etc. The results show that performance ofthe system can satisfy requirements of parking application w ell.
出处
《小型微型计算机系统》
CSCD
北大核心
2015年第9期2031-2036,共6页
Journal of Chinese Computer Systems
基金
国家自然科学基金项目(61272472
61232018
61472382)资助
国家科技重大专项(2012ZX10004-301-609)资助
关键词
智能停车诱导系统
无线传感器网络
车位监测
路由协议
低功耗
parking guidance and information system
WSN
parking space monitoring
routing protocol
low pow er consumption
