JPS63180883A - Obstacle detector for unmanned truck - Google Patents

Obstacle detector for unmanned truck

Info

Publication number
JPS63180883A
JPS63180883A JP62012522A JP1252287A JPS63180883A JP S63180883 A JPS63180883 A JP S63180883A JP 62012522 A JP62012522 A JP 62012522A JP 1252287 A JP1252287 A JP 1252287A JP S63180883 A JPS63180883 A JP S63180883A
Authority
JP
Japan
Prior art keywords
circuit
signal
obstacle
generation circuit
vibrator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62012522A
Other languages
Japanese (ja)
Other versions
JPH0827342B2 (en
Inventor
Katsuya Ichida
Yasuo Kuchiwaki
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP62012522A priority Critical patent/JPH0827342B2/en
Publication of JPS63180883A publication Critical patent/JPS63180883A/en
Publication of JPH0827342B2 publication Critical patent/JPH0827342B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To prevent malfunction due to an acoustic noise positively, by dividing a detection area into several parts to detect reflected ultrasonic signals from an obstacle.
CONSTITUTION: A wavelength determined by a frequency generation circuit 4 for transmission is transmitted to a transmitting/receiving vibrator 2 at a cycle determined by an oscillation cycle generation circuit 5 and an ultrasonic wave is oscillated into the air from the vibrator 2. The ultrasonic wave reflected from an obstacle 3 is received by the vibrator 2 again and a very weak current generated is shaped with a filter 7 and amplified with an amplifier 8 to be applied to a detection area decision circuit 9 as receiving signal. On the other hand, a reference gate generation circuit 10 generates a reference signal to be transmitted to a time gate generation circuit 11, which generates a time gate signal based on the reference signal to be sent to the circuit 9. The circuit 9 judges a signal received from the amplifier 8 to recognize a detection area M at which the obstacle is present. A signal is sent from the circuit 9, for example, to a wheel driving motor and an unmanned truck is decelerated or stopped on the basis of the judgement by the circuit 9.
COPYRIGHT: (C)1988,JPO&Japio
JP62012522A 1987-01-23 1987-01-23 Obstacle detection device for automated guided vehicles Expired - Lifetime JPH0827342B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62012522A JPH0827342B2 (en) 1987-01-23 1987-01-23 Obstacle detection device for automated guided vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62012522A JPH0827342B2 (en) 1987-01-23 1987-01-23 Obstacle detection device for automated guided vehicles

Publications (2)

Publication Number Publication Date
JPS63180883A true JPS63180883A (en) 1988-07-25
JPH0827342B2 JPH0827342B2 (en) 1996-03-21

Family

ID=11807669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62012522A Expired - Lifetime JPH0827342B2 (en) 1987-01-23 1987-01-23 Obstacle detection device for automated guided vehicles

Country Status (1)

Country Link
JP (1) JPH0827342B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03289579A (en) * 1990-04-06 1991-12-19 Atsumi Denki Kk Multitime window type ultrasonic switch
JPH0560863A (en) * 1991-08-30 1993-03-12 Nissan Motor Co Ltd Ultrasonic distance measuring device
JPH0752225B2 (en) * 1989-10-20 1995-06-05 スタンレー電気株式会社 Obstacle detection device
JP2013104689A (en) * 2011-11-10 2013-05-30 Panasonic Corp Ultrasonic sensor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101855573B (en) * 2008-01-16 2013-11-20 三菱电机株式会社 Dynamic obstacle judgment device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177726A (en) * 1982-04-09 1983-10-18 Aisin Warner Ltd Maintaining device of distance between cars in automobile with automatic speed changer
JPS5966173U (en) * 1982-10-27 1984-05-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177726A (en) * 1982-04-09 1983-10-18 Aisin Warner Ltd Maintaining device of distance between cars in automobile with automatic speed changer
JPS5966173U (en) * 1982-10-27 1984-05-02

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0752225B2 (en) * 1989-10-20 1995-06-05 スタンレー電気株式会社 Obstacle detection device
JPH03289579A (en) * 1990-04-06 1991-12-19 Atsumi Denki Kk Multitime window type ultrasonic switch
JPH0560863A (en) * 1991-08-30 1993-03-12 Nissan Motor Co Ltd Ultrasonic distance measuring device
JP2013104689A (en) * 2011-11-10 2013-05-30 Panasonic Corp Ultrasonic sensor

Also Published As

Publication number Publication date
JPH0827342B2 (en) 1996-03-21

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term