JPS5932976U

JPS5932976U - Self-check device for ultrasonic object detection device

Info

Publication number: JPS5932976U
Application number: JP12753882U
Authority: JP
Inventors: 憲一山口; 晃遠藤; 杉浦　一正
Original assignee: 自動車機器技術研究組合
Priority date: 1982-08-25
Filing date: 1982-08-25
Publication date: 1984-02-29

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は動作原理を説明する波形図、第２図は実施例の
構成を示す略図、第３図は実施例の動作を示す図、第４
図は複数の送受信器を使用した実施例の構成を示す略図
。１・・・受信器、２・・・送信器、３・・・増幅器、４
・・・スレッシュホールド電圧切換回路、５・・・コン
パレータ、６・・・信号処理、制御回路、７・・・セル
フチェックスイッチ、８・・・マイクロコンピュータ、
９・・・警音器、１０・・・表示器、１１・・・受信選
択回路、１２・・・送信選択回路。Fig. 1 is a waveform diagram explaining the principle of operation, Fig. 2 is a schematic diagram showing the configuration of the embodiment, Fig. 3 is a diagram showing the operation of the embodiment, and Fig. 4 is a diagram showing the operation of the embodiment.
The figure is a schematic diagram showing the configuration of an embodiment using a plurality of transceivers. 1... Receiver, 2... Transmitter, 3... Amplifier, 4
...Threshold voltage switching circuit, 5...Comparator, 6...Signal processing, control circuit, 7...Self-check switch, 8...Microcomputer,
9... Alarm, 10... Display, 11... Reception selection circuit, 12... Transmission selection circuit.

Claims

[Scope of utility model registration request]

an element that emits ultrasonic waves, an element that receives ultrasonic waves reflected by an object, a circuit that converts the ultrasonic reception level into a voltage level, and a circuit that generates a predetermined reference voltage while receiving the ultrasonic waves; This is a device consisting of a circuit that compares the above two types of pressure, and is a safety device for an ultrasonic sensor that has a self-check function to determine whether the device is normal or not, and lowers the reference voltage only during the self-check period. A self-check device for an ultrasonic object detection device, characterized in that it is configured as follows.