The invention discloses an elevator button. A touch display screen covers the upper portion of an ultrasonic fingerprint recognition sensor. The upper surface of the ultrasonic fingerprint recognitionsensor is parallel to the upper surface of the touch display screen. The ultrasonic fingerprint recognition sensor outputs fingerprint electric signals of various recognition point sets according tothe difference between the time when an ultrasonic transmitter sends out ultrasonic waves and the time when an ultrasonic receiver receives the ultrasonic waves in the recognition point sets. When thetouch display screen is touched by fingers, the touch display screen will send a trigger signal to the ultrasonic fingerprint recognition sensor. When the ultrasonic fingerprint recognition sensor receives the trigger signal, the recognition point sets send ultrasonic waves to the touch display screen. By means of the elevator button, the fingerprint information of persons taking elevators can beaccurately collected, and mounting space cannot be additionally occupied.
本发明公开了一种电梯按钮,触摸显示屏覆盖在超声波指纹识别传感器上方;超声波指纹识别传感器的上表面平行于触摸显示屏上表面;超声波指纹识别传感器根据各组识别点中的超声波发射器发出超声波同对应超声波接收器接收到该超声波的时间差,输出各组识别点的指纹电信号;当触摸显示屏被手指触碰时,触摸显示屏会发一个触发信号给超声波指纹识别传感器;超声波指纹识别传感器在接收到所述触发信号时,其各组识别点朝触摸显示屏方向发出超声波。本发明的电梯按钮,能准确采集乘梯人员的指纹信息,不会额外占用安装空间。
Elevator button
电梯按钮
2020-07-07
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
Elevator button wiring device and elevator button assembly
European Patent Office | 2023
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