The invention discloses a commercial vehicle ramp overspeed judgment method based on CAN data. The method comprises the following steps: S1, collecting ramp GPS point location data; s2, calculating a ramp area according to a polygon enclosed by the ramp GPS point location data; s3, according to vehicle GPS point location data collected in real time, whether the vehicle is located in a ramp area or not is judged through a linear programming method, if the vehicle is not located in the ramp area, processing is not carried out, and if the vehicle is located in the ramp area, the next step of overspeed judgment is carried out; and S4, performing overspeed judgment according to the current CAN vehicle speed of the vehicle, if the current CAN vehicle speed of the vehicle does not exceed the ramp speed limit value, performing no processing, and if the current CAN vehicle speed of the vehicle exceeds the ramp speed limit value, triggering an alarm starting condition and sending alarm information of a corresponding grade. According to the method, the accuracy and the real-time performance of overspeed judgment on the ramp are improved, real-time monitoring and alarm reminding of the speed of the vehicle on the ramp are achieved, and accidents on the ramp can be reduced.
本发明公开了一种基于CAN数据的商用车匝道超速判断方法,包括如下步骤:S1、采集匝道GPS点位数据;S2、根据匝道GPS点位数据围成的多边形计算出匝道区域;S3、根据实时采集的车辆GPS点位数据,利用线性规划方法判断该车辆是否处于匝道区域内,若该车辆不处于匝道区域内,则不做处理,若该车辆处于匝道区域内,则进入下一步的超速判断;S4、根据车辆当前的CAN车速进行超速判断,若该车辆当前的CAN车速不超过匝道限速值,则不做处理,若该车辆当前的CAN车速超过匝道限速值,则触发报警开始条件并发出相应等级的报警信息。本发明的方法提高了匝道上超速判断的准确性和实时性,实现车辆在匝道上的车速的实时监控和报警提醒,有利于减少匝道上事故的发生。
Commercial vehicle ramp overspeed judgment method based on CAN data
一种基于CAN数据的商用车匝道超速判断方法
2023-04-18
Patent
Electronic Resource
Chinese
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