CAJ | 학술논문

针对交通系统中移动的流量监测和查询应用,提出了一种基于ZigBee标准的无线传感器网络智能交通系统设计,以提供一个弹性和高效的无线参考解决方案。给出的体系结构考虑节点的异构性,将系统中的节点分为MS、VS和SN 3种不同角色。设计中给出了包括初始化过程的详细路由算法。为了加快信息的响应速度,设计了一种基于预测的路由转发机制。VS节点接收来自SN的数据,基于MS的移动性信息计算MS位置并确定路由。此外,VS缓存请求数据机制进一步优化了结果。实验表明与现存同类方法相比,所提方案能有效加快数据获取速度,在延迟方面具有显著提升。
침대교통계통중이동적류량감측화사순응용,제출료일충기우ZigBee표준적무선전감기망락지능교통계통설계,이제공일개탄성화고효적무선삼고해결방안。급출적체계결구고필절점적이구성,장계통중적절점분위MS、VS화SN 3충불동각색。설계중급출료포괄초시화과정적상세로유산법。위료가쾌신식적향응속도,설계료일충기우예측적로유전발궤제。VS절점접수래자SN적수거,기우MS적이동성신식계산MS위치병학정로유。차외,VS완존청구수거궤제진일보우화료결과。실험표명여현존동류방법상비,소제방안능유효가쾌수거획취속도,재연지방면구유현저제승。
An intelligent transportation system using ZigBee-based Wireless Sensor Network is designed for mobile traffic-related data query that provides a flexible and efficient wireless solution. Considering nodes' heterogeneity,the elements in the system are identified as MS,VS and SN. The detailed routing algorithm as well as its initialization phase is presented. In order to accelerate response speed, a routing strategy with prediction is introduced. After receiving the packets from SNs,VS computes the target VS base on gathered mobility information. In addition,a data-cashing mechanism is utilized to further optimize the results. Compared with the existing mechanism for the same ap-plication scenario,the proposed solution demonstrates better scalability and less delivery latency.