【作者】 李娜； 王庆； 张波； 李玲；

【Author】 Li Na;Wang Qing;Zhang Bo;Li Ling;Southeast University,Master of Instrument and Meter Engineering;Southeast University,Smart City Research Institute;

【机构】 东南大学仪器科学与工程学院； 东南大学智慧城市研究院；

【摘要】 随着公交信号优先系统在南京投入使用,基于电子围栏技术实现交叉路口信号优先的方法得到推广和应用。本文利用电子围栏技术在交通路口设定信号触发区域;创新性地提出了一种由射线法改进得到的触发判断算法,在该算法的基础上结合电子围栏技术设计了触发判断系统,解决了公交车的信号优先申请问题;针对公交车实时信息的丢包和飘点问题,提出了电子围栏进入策略正确性判断等解决方法,保障了公交优先系统不存在触发错误。本文设计方法通过实际项目应用的统计数据,得到了很好的验证。更多还原

【Abstract】 As well as bus signal priority system has been put into use in Nanjing, the method to achieve cross-intersection signal priority has been widely used. In this paper, the electronic fence technology is used to set the signal triggering area at the traffic intersection. A triggering judgment algorithm is improved by the ray method. Based on the algorithm, the triggering judgment system is designed based on the electronic fence technology. In order to solve the problem of packet loss and floating point of real-time information of bus, a solution to the correctness of electronic fence entry strategy is proposed to ensure that there is no triggering error in the bus priority system. The design method of this paper has been well verified by the statistical data of the actual project application.更多还原