基于动态帧时隙ALOHA的危险品运输RFID防碰撞算法  

RFID anti-collision algorithm for hazardous materials transportation based on dynamic frame slotted ALOHA

作　　者：魏福禄 刘攀[1] 李志斌[1] 孙锋[2] 郭永青[2] 曹宁博 WEI Fu-lu;LIU Pan;LI Zhi-bin;SUN Feng;GUO Yong-qing;CAO Ning-bo(School of Transportation,Southeast University,Nanjing 210096,China;School of Transportation and Vehicle Engineering,Shandong University of Technology,Zibo 255000,China;School of Economics and Management,Chang’an University,Xi’an 710064,China)

机构地区：[1]东南大学交通学院,南京210096 [2]山东理工大学交通与车辆工程学院,山东淄博255000 [3]长安大学经济与管理学院,西安710064

出　　处：《沈阳工业大学学报》2020年第5期540-544,共5页Journal of Shenyang University of Technology

基　　金：国家自然科学基金项目(51878165,71901134,71871057);江苏省博士后科研资助计划项目(2018K118C).

摘　　要：针对危险品运输ALOHA算法随着标签数目的增多系统性能逐渐下降的问题,对射频识别系统和固定帧时隙ALOHA算法工作原理进行分析,运用Matlab辅助工具建立了基于动态帧时隙ALOHA算法危险品运输RFID防碰撞模型.实例分析和仿真验证结果表明,基于固定帧时隙ALOHA算法的系统效率在标签数为60时达到最高,之后随着标签数增多系统效率迅速下降;在标签数为0~100时,基于动态帧时隙ALOHA算法的系统效率随着系统标签数的增加而逐渐增加,并最终达到35.2%,具有较好的鲁棒性,能够有效提升危险品运输的安全水平.Aiming at the problem that the performance of advanced learning on higher arithmetic(ALOHA)algorithm gradually reduces with the increasing number of tags during the process of hazardous materials transportation,the working principles of radio frequency identification(RFID)system and static frame slotted ALOHA algorithm were analyzed.In addition,a RFID anti-collision model for hazardous materials transportation based on dynamic frame slotted ALOHA was established by taking Matlab as auxiliary tool.The results of case analysis and simulation verification show that when the number of tags is about 60,the system efficiency of static frame slotted ALOHA algorithm reaches the highest level,and then decreases rapidly with the increasing number of tags.When the number of tags is within 0 to 100,the system efficiency based on dynamic frame slotted ALOHA algorithm gradually increases with the increasing number of tags and finally reaches 35.2%of good robustness,and can effectively improve the safety level of hazardous materials transportation.

关 键 词：交通安全 危险品运输 RFID系统 防碰撞算法 ALOHA算法 动态帧时隙 电子标签 最佳帧长 

分 类 号：TN911.23[电子电信—通信与信息系统]