JPS6481096A - Parking place management control system - Google Patents

Parking place management control system

Info

Publication number
JPS6481096A
JPS6481096A JP23835687A JP23835687A JPS6481096A JP S6481096 A JPS6481096 A JP S6481096A JP 23835687 A JP23835687 A JP 23835687A JP 23835687 A JP23835687 A JP 23835687A JP S6481096 A JPS6481096 A JP S6481096A
Authority
JP
Japan
Prior art keywords
sensor
control circuit
ultrasonic wave
parking place
sensor control
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
JP23835687A
Other languages
Japanese (ja)
Other versions
JPH0424760B2 (en
Inventor
Yoshiki Omino
Akira Munemura
Toshiyuki Ishida
Tomoshi Ikeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gakken Holdings Co Ltd
Original Assignee
Gakken Co Ltd
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 Gakken Co Ltd filed Critical Gakken Co Ltd
Priority to JP23835687A priority Critical patent/JPS6481096A/en
Publication of JPS6481096A publication Critical patent/JPS6481096A/en
Publication of JPH0424760B2 publication Critical patent/JPH0424760B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To easily execute the extension change of a parking place managing system by detecting whether a parking car exists or not by using an ultrasonic wave sensor, and also, bringing said sensor to cascade connection. CONSTITUTION:A sensor unit 1 counts 13 a timing signal (b) of a sensor control circuit 2 by a prescribed number. By attending with the start of this counting, an ultrasonic wave is generated, and when the counter 13 is operating, an ultrasonic reflected wave is detected, and sent out to the sensor control circuit 2. Also, based on the end of counting of the counter 13, the start of the sensor unit 1 is urged one after another. The sensor control circuit 2 which has received the reflected wave derives a distance to an object by comparing the time extending from the generation of an ultrasonic wave to its reception with a reference value stored in a memory 47. In such a way, whether a parking car exists or not is decided 46.
JP23835687A 1987-09-22 1987-09-22 Parking place management control system Granted JPS6481096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23835687A JPS6481096A (en) 1987-09-22 1987-09-22 Parking place management control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23835687A JPS6481096A (en) 1987-09-22 1987-09-22 Parking place management control system

Publications (2)

Publication Number Publication Date
JPS6481096A true JPS6481096A (en) 1989-03-27
JPH0424760B2 JPH0424760B2 (en) 1992-04-27

Family

ID=17028974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23835687A Granted JPS6481096A (en) 1987-09-22 1987-09-22 Parking place management control system

Country Status (1)

Country Link
JP (1) JPS6481096A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06150194A (en) * 1992-11-16 1994-05-31 Ishikawa Seisakusho:Kk Parking state detecting system
EP0839699A1 (en) * 1996-10-29 1998-05-06 Siemens Aktiengesellschaft Antitheft monitoring system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62238355A (en) * 1986-04-09 1987-10-19 Nippon Kokan Kk <Nkk> High-strength austenitic steel excellent in resistance to age embrittlement

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62238355A (en) * 1986-04-09 1987-10-19 Nippon Kokan Kk <Nkk> High-strength austenitic steel excellent in resistance to age embrittlement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06150194A (en) * 1992-11-16 1994-05-31 Ishikawa Seisakusho:Kk Parking state detecting system
EP0839699A1 (en) * 1996-10-29 1998-05-06 Siemens Aktiengesellschaft Antitheft monitoring system

Also Published As

Publication number Publication date
JPH0424760B2 (en) 1992-04-27

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