The invention discloses a vehicle type classification detection method based on a single geomagnetic sensor, and mainly solves the problems that the obtained vehicle type classification information is delayed due to the complexity of the existing vehicle type classification detection algorithm, and the accuracy of the obtained vehicle type information is poor due to the fact that the data acquisition of the sensor is easily influenced by environmental factors. According to the method, a geomagnetic sensor is placed on a lane line on one side of a lane, a single geomagnetic sensor is adopted to collect a magnetic field disturbance value of a vehicle, magnetic field features in the magnetic field disturbance value of the vehicle are extracted, a SoftMax function model is generated by using screened effective magnetic field features, and vehicle types of small vehicles, medium vehicles and large vehicles are judged. The vehicle type classification detection method based on the single geomagnetic sensor is low in calculation complexity, reduces the calculation pressure of the geomagnetic sensor, is convenient to install, is low in cost, is not liable to be influenced by weather factors, and can be used for road intelligentization.
本发明公开了一种基于单个地磁传感器的车型分类检测方法,主要解决现有车型分类检测算法复杂导致获取的车型分类信息延迟,以及由于传感器的数据采集容易受到环境因素影响导致获取的车型信息精准性的问题。本发明将一个地磁传感器摆放在车道一侧的车道线上,采用单个地磁传感器采集车辆的磁场扰动值,并提取车辆磁场扰动值中的磁场特征,利用筛选的有效磁场特征生成SoftMax函数模型,实现对小型车、中型车、大型车的车型判断。本发明使用的基于单个地磁传感器的车型分类检测方法计算复杂度低,减少地磁传感器的计算压力,安装方便,成本低,并且不易受到天气因素的影响,可用于公路智能化。
Vehicle type classification detection method based on single geomagnetic sensor
基于单个地磁传感器的车型分类检测方法
2023-07-21
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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