The invention relates to a fatigue detection method and system based on big data and cloud computing, and the method comprises the steps: constructing a vehicle driving track curve from a current position to a position before a steering wheel rotates, a vehicle driving track curve after danger avoiding, and a vehicle driving track curve before and after the steering wheel rotates, and combining the three curves together; extracting a merging point of the vehicle driving track curve from the current moment to the steering wheel before rotation and the vehicle driving track curve before and after rotation of the steering wheel, wherein the merging point is the latest rotation position of the steering wheel; the arc length from the current position to the latest rotation position of the steering wheel is subtracted from the vehicle driving arc length, making a response to avoiding the dangerous case, of the driver, and the safest steering wheel rotation position of the vehicle is obtained; if the vehicle runs from the current position to the safest steering wheel rotating position of the vehicle and the driver does not rotate the steering wheel, judging that the driver is in fatigue driving; the driver is awakened to operate the steering wheel; and the driver has enough time to carry out danger avoiding operation.
本发明涉及一种基于大数据与云计算的疲劳检测方法及系统,该方法包括构建出当前位置行驶至方向盘转动前的车辆行驶轨迹曲线、避险后的车辆行驶轨迹曲线、方向盘转动前后的车辆行驶轨迹曲线,并将该三条曲线合并在一起;提取当前时刻至方向盘转动前的车辆行驶轨迹曲线与方向盘转动前后车辆行驶轨迹曲线的合并点,该合并点即为方向盘最迟转动位置;将自当前位置行驶至该方向盘最迟转动位置的弧长与驾驶员规避险情做出反应的车辆行驶弧长做差,获得车辆最安全的方向盘转动位置;车辆自当前位置行驶至车辆最安全的方向盘转动位置,驾驶员未转动方向盘,则判断驾驶员疲劳驾驶;此时唤醒驾驶员对方向盘进行操作;驾驶员具有足够时间进行避险操作的优点。
Fatigue driving detection method and system based on big data and cloud computing
基于大数据与云计算的疲劳驾驶检测方法及系统
2022-06-14
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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