The invention provides an automatic anti-collision auxiliary method and system for an electric bicycle, and the method comprises the steps: enabling a pinhole camera to continuously shoot the image data of the head of the electric bicycle within the advancing range according to a preset time interval after the speed of the electric bicycle exceeds a preset value; analyzing whether an obstacle exists in the image data; image data at two moments are selected, and the ratio of the distance between the electric bicycle and the obstacle at the two moments is calculated based on the image height; substituting the distance ratio into a preset contact time relation to calculate the contact time between the electric bicycle and the obstacle; when the electric bicycle is in an emergency state, the counter electromotive force speed reduction device is started for forced speed reduction. On the basis of the imaging principle of the pinhole camera, the contact time between the electric bicycle and the front obstacle is predicted, the speed of the electric bicycle is restrained through the back electromotive force speed reduction device, and therefore accidents caused by collision are reduced.

    本发明提供了一种电动自行车的自动防撞辅助方法及其系统,方法包括:在电动自行车的车速超过预设值后,针孔照相机按照预设时间间距持续拍摄电动自行车车头在前进范围内的影像资料;分析影像资料中是否存在障碍物;选取两个时刻的影像资料,基于影像高度,计算两个时刻的电动自行车与障碍物之间的距离之比;将距离之比代入预设接触时间关系中以计算电动自行车与障碍物之间的接触时间;当电动自行车处于紧急状态时,通过启动反电动势减速装置强制减速。本发明基于针孔摄像头的成像原理,预测电动自行车与前方障碍物之间的接触时间,并通过反电动势减速装置抑制电动自行车的车速,从而减低因碰撞而造成的事故。


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    Title :

    Automatic anti-collision auxiliary method and system for electric bicycle


    Additional title:

    一种电动自行车的自动防撞辅助方法及其系统


    Contributors:
    LI SHAOWEN (author) / CHEN QIFENG (author)

    Publication date :

    2023-06-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / B62L BRAKES SPECIALLY ADAPTED FOR CYCLES , Bremsen, besonders für Fahrräder oder Motorräder ausgebildet



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