The invention relates to the field of vehicles, in particular to a method for vehicle distance measurement, which comprises the following steps of: S1, detecting a license plate of a target vehicle by a sensor of a vehicle; s2, identifying license plate information based on the detected license plate image and obtaining the size of the license plate; s3, correcting license plate imaging in the sensor coordinate system; s4, calculating the distance between the sensor and the license plate in the sensor coordinate system; s5, converting the sensor coordinate system into a vehicle coordinate system; s6, modeling the license plate position of the target vehicle under the condition of the vehicle coordinate system; and S7, obtaining the distance between the vehicle and the target vehicle based on the license plate model. The invention also relates to a system for ranging a vehicle, a corresponding vehicle and a computer program product. According to the invention, reliable vehicle distance measurement can be achieved by means of indirect measurement using existing devices. In this way, a simple redundancy scheme for vehicle distance measurement can be achieved, and therefore the safety of vehicle driving can still be ensured under the condition that the vehicle distance measurement device fails.
本发明涉及车辆领域,具体而言涉及一种用于车辆测距的方法,其包括以下步骤:S1由本车辆的传感器检测目标车辆的车牌;S2基于所检测的车牌成像识别车牌信息并获知车牌尺寸;S3在传感器坐标系中对车牌成像进行校正;S4在传感器坐标系中计算传感器与车牌的距离;S5将传感器坐标系转换成本车辆坐标系;S6在本车辆坐标系的情况下对目标车辆的车牌位置进行建模;和S7基于车牌模型获得本车辆与目标车辆的距离。本发明还涉及一种用于车辆测距的系统、相应车辆及计算机程序产品。通过本发明能在利用现有装置的情况下借助间接测量实现可靠的车辆测距。由此还能实现车辆测距的简单冗余方案,从而在车辆测距装置失效的情况下仍然确保车辆行驶的安全性。
Method and system for vehicle ranging, vehicle and program product
用于车辆测距的方法和系统、车辆及程序产品
2022-07-29
Patent
Elektronische Ressource
Chinesisch
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