JPS5810007U

JPS5810007U - Automotive road condition detector

Info

Publication number: JPS5810007U
Application number: JP10495881U
Authority: JP
Inventors: 本田　省三; 次郎相馬
Original assignee: 松下電器産業株式会社
Priority date: 1981-07-14
Filing date: 1981-07-14
Publication date: 1983-01-22

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図は本考案の一実施例における車載用路面状態検知
器の概略図、第２図は同検知器のタイミングチャート、
第３図は同検知器の要部のブロック図である。１、　２．　３．　４・・・・・・超音波変換器、５．
５’。５″・・・・・・切換スイッチ、６・・・・・・送信用
アンプ、７・・・・・・受信用アンプ、８・・・・・・
検波器、９・・・・・・波形整形器、１０・・・・・・
信号処理ユニット、１１・・・・・・表示器、１２．　
１３．　１４・・・・・・警報器、１５・・・・・・路
面、１６・・・・・・障害物。 −千０ −ＦｌｌｌFIG. 1 is a schematic diagram of an in-vehicle road condition detector according to an embodiment of the present invention, and FIG. 2 is a timing chart of the same detector.
FIG. 3 is a block diagram of the main parts of the detector. 1, 2. 3. 4... Ultrasonic transducer, 5.
5'. 5''...Selector switch, 6...Transmitting amplifier, 7...Receiving amplifier, 8...
Detector, 9... Waveform shaper, 10...
Signal processing unit, 11...Display device, 12.
13. 14... Alarm, 15... Road surface, 16... Obstacle. -1000 -Fllll

Claims

[Scope of claim for utility model registration] ゛(1) An ultrasonic signal generation circuit that generates an ultrasonic signal;
An ultrasonic transducer that points toward the earth and transmits the ultrasonic signal; an ultrasonic transducer that points toward the earth and receives reflected waves from the earth; and a measurement that measures the time from transmission to reception of the ultrasonic signal. An in-vehicle road surface condition detector comprising: a means for identifying a road surface condition based on a measured value of the measuring means; and a means for displaying or warning the identification result. (2) an ultrasonic signal generation circuit that generates an ultrasonic signal; an ultrasonic transducer that points toward the earth and transmits the ultrasonic signal;
an ultrasonic transducer that points toward the ground and receives reflected waves from the ground; an ultrasonic transducer that points toward obstacles on the ground and transmits the ultrasonic signals; and an ultrasonic transducer that points toward the obstacles and receives reflected waves from the obstacles. an ultrasonic transducer for receiving waves, a measuring means for measuring the time from transmission to reception of the ultrasonic disease signal, and an identification means for identifying road surface conditions or the presence of obstacles based on the measured value of the measuring means; means for displaying or alerting the identification results;
An in-vehicle road surface condition detector according to claim 1, comprising switching means for switching the ultrasonic signal generation circuit and the measuring means to a road surface condition detection side or an obstacle detection side.