JPS5780947A - Crime prevention device for automobile - Google Patents

Crime prevention device for automobile

Info

Publication number
JPS5780947A
JPS5780947A JP15496580A JP15496580A JPS5780947A JP S5780947 A JPS5780947 A JP S5780947A JP 15496580 A JP15496580 A JP 15496580A JP 15496580 A JP15496580 A JP 15496580A JP S5780947 A JPS5780947 A JP S5780947A
Authority
JP
Japan
Prior art keywords
detector
prevention device
crime prevention
abnormal noise
car body
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
JP15496580A
Other languages
Japanese (ja)
Other versions
JPS6344100B2 (en
Inventor
Tamao Morita
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.)
MAGURIIDA KK
Tarmo Co Ltd
Original Assignee
MAGURIIDA KK
Tarmo 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 MAGURIIDA KK, Tarmo Co Ltd filed Critical MAGURIIDA KK
Priority to JP15496580A priority Critical patent/JPS5780947A/en
Publication of JPS5780947A publication Critical patent/JPS5780947A/en
Publication of JPS6344100B2 publication Critical patent/JPS6344100B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)

Abstract

PURPOSE: To protect automobile from robbery or roguery by detecting change in battery voltage and actuating alarm by means of the detector signal.
CONSTITUTION: This crime prevention device is constituted utilizing a part of the jolting detector circuit 1 which includes a jolt detector M1 used to detect shaking of the car body. Added to the above is an abnormal noise detector circuit 2 which includes more than one microphones M2 to detect abnormal noise produced when the car body is hurt. When an electric system of the car, the self-starting motor, radio, etc., is mischievously handled during parking, the voltage fluctuation of the battery B is conveyed through a power source line l1, and a resistance R1 to the base of a transistor TR2. This input is then successively amplified by TR2, TR6, TR7 and TR9 and finally actuates a relay RY1, blowing a hone H for a time period determined by a capacitor C6.
COPYRIGHT: (C)1982,JPO&Japio
JP15496580A 1980-11-04 1980-11-04 Crime prevention device for automobile Granted JPS5780947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15496580A JPS5780947A (en) 1980-11-04 1980-11-04 Crime prevention device for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15496580A JPS5780947A (en) 1980-11-04 1980-11-04 Crime prevention device for automobile

Publications (2)

Publication Number Publication Date
JPS5780947A true JPS5780947A (en) 1982-05-20
JPS6344100B2 JPS6344100B2 (en) 1988-09-02

Family

ID=15595766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15496580A Granted JPS5780947A (en) 1980-11-04 1980-11-04 Crime prevention device for automobile

Country Status (1)

Country Link
JP (1) JPS5780947A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135845A (en) * 1984-12-06 1986-06-23 Fujitsu Ten Ltd Automotive burglarproof system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135845A (en) * 1984-12-06 1986-06-23 Fujitsu Ten Ltd Automotive burglarproof system

Also Published As

Publication number Publication date
JPS6344100B2 (en) 1988-09-02

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