Capacitive proximity sensing

• Main Authors: SANCHEZ RENE J, KRONSCHNABEL RODERICK E, CARNAGHI RYAN R, YANCY CECILIA, MOSS THOMAS V, SCHNEIDER MATTHEW J, SWESEY KEITH A, WHITEHORN STEVEN W, ROSS CHRISTOPHER L, MILLER MARCIE M, EDWARDS KEVIN
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2019
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

A capacitive proximity sensor may include a proximity sensing capacitor to provide a voltage output based on a voltage input, the capacitor including a ground plane and an electrode loop capacitivelycoupled to the ground plane. The proximity sensor may include a processor to detect an object proximity based on a change in the voltage output. The proximity sensor provides automated detection of aperson, and thereby reduces the need for a vehicle occupant or child caregiver to activate a sensor by pressing a button. The use of a capacitance-based proximity sensor reduces issues associated withfabric, clothing, or other materials separating the proximity sensor from a person. 电容式邻近度传感器可包括邻近度感测电容器，用于基于电压输入提供电压输出，该电容器包括接地平面以及电容耦合至接地平面的电极回路。邻近度传感器可包括处理器，用于基于电压输出的改变来检测物体邻近度。此邻近度传感器提供对人的自动检测，从而减少车辆乘员或儿童看护者通过按下按钮来激活传感器的需要。基于电容的邻近度传感器的使用减少了与织物、衣物、或其他材料将邻近度传感器与人分隔开相关联的问题。