The invention discloses a train distance measurement anti-collision early warning system and method based on train-train communication, and belongs to the technical field of communication, the train distance measurement anti-collision early warning system is composed of a host and a slave, a TOA algorithm is adopted between the host and the slave to achieve the positioning function of the system, a Kalman filtering algorithm is adopted to optimize the system to improve the positioning precision of the system, the host sends a distance measurement starting instruction, and the slave sends a distance measurement starting instruction; after the slave computer receives a distance measurement instruction, distance measurement and data transmission are started, all data are uploaded to the vehicle-mounted upper host computer, the vehicle-mounted upper host computer provides the real-time interval distance between the front train and the rear train and the real-time train speed of the train for a train driver through data analysis, and sound-light alarm is conducted when the real-time train speed of the train is smaller than the preset safety distance. Direct communication between trains is achieved without ground equipment, a part of functions of interlocking and ground equipment are integrated into the vehicle-mounted controller, communication time delay can be effectively shortened, the number of trackside equipment is reduced, and the autonomy of the trains is improved.
一种基于车车通信的列车测距防撞预警系统及方法,属于通信技术领域,由主机和从机两部分组成,主机和从机之间采用TOA算法实现系统的定位功能,并采用卡尔曼滤波算法对其进行优化提高系统的定位精度,由主机发送测距开始指令,当从机接收到测距指令后,开始进行测距并进行数据传输,将全部数据上传至车载上位主机,车载上位主机通过数据分析,向列车司机提供前车与后车的实时间隔距离、列车实时车速,列车实时车速小于预定安全距离进行声光报警。本发明不通过地面设备实现列车之间的直接通信,将一部分联锁和地面设备的功能集成到车载控制器中,可有效降低通信时延、减少轨旁设备数量和提高列车的自主权。
Train distance measurement anti-collision early warning system and method based on train-to-train communication
一种基于车车通信的列车测距防撞预警系统及方法
2024-01-09
Patent
Elektronische Ressource
Chinesisch
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
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