结合电容和超声波的距离测量的汽车应用

结合电容和超声波的距离测量的汽车应用(中文5000字,英文4000字)
    摘要:在汽车应用中研制了一种基于电容传感器和超声波传感器融合的概念用于测量距离。尽管超声波传感器测距技术在距离传感应用中被广泛接受,但是它们在近距离的车辆应用方面表现出了缺点。电容传感器的合适测量距离高达0.3米,还可以提供正在接近对象本身的物体的信息。所提出的融合概念的测量范围达到2米,同时可以避免盲点和提供对象分类的方法。方法的可行性和它的稳定性及其对环境的影响都通过实验调查的方法得到了演示。
关键词：汽车传感器、电容式感应、对象检测、传感器融合、超声波

Combined Capacitive and Ultrasonic Distance
Measurement for Automotive Applications
Thomas Schlegl, Thomas Bretterklieber, Member, IEEE, Markus Neumayer, and Hubert Zangl, Member, IEEE
Abstract—This work presents a sensor fusion concept based on capacitive and ultrasonic techniques for distance measurement in automotive applications. Although ultrasonic sensors are a well accepted technology for distance sensing applications, they reveal drawbacks in the immediate vicinity of a vehicle. Capacitive sen-sors are suited for distance measurements of up to 0.3 m and may also provide information about the approaching object itself. The measurement range of the proposed fusion concept reaches up to 2 m whereby blind spots are avoided and means for object classifi-cation are provided. The feasibility of the approach and its robust-ness against environmental influences are demonstrated by means of experimental investigations.
Index Terms—Automotive sensors, capacitive sensing, object de-tection, sensor fusion, ultrasonic (US).