JPH0367237U - - Google Patents

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Publication number
JPH0367237U
JPH0367237U JP12495989U JP12495989U JPH0367237U JP H0367237 U JPH0367237 U JP H0367237U JP 12495989 U JP12495989 U JP 12495989U JP 12495989 U JP12495989 U JP 12495989U JP H0367237 U JPH0367237 U JP H0367237U
Authority
JP
Japan
Prior art keywords
circuit
noise level
microphone
signal
vehicle
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
JP12495989U
Other languages
Japanese (ja)
Other versions
JPH0737996Y2 (en
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 filed Critical
Priority to JP12495989U priority Critical patent/JPH0737996Y2/en
Publication of JPH0367237U publication Critical patent/JPH0367237U/ja
Application granted granted Critical
Publication of JPH0737996Y2 publication Critical patent/JPH0737996Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本考案に係る車両の警報装置のブロ
ツク構成図、第２図は、本考案の原理を説明する
グラフ図、第３図は、本考案に用いる警報条件判
定回路の一実施例を示した図、第４図は、本考案
に用いる騒音レベル検出回路の一実施例を示した
図、第５図は、本考案に用いる発振回路の一実施
例を示した図、第６図は、本考案に用いる発振回
路の動作を説明するための波形図、である。 第１図において、１は警報条件判定回路、２は
マイク、３は騒音レベル検出回路、４は発振回路
、５は増幅回路、６は音響出力装置をそれぞれ示
す。図中、同一符号は同一又は相当部分を示す。 FIG. 1 is a block diagram of a vehicle alarm system according to the present invention, FIG. 2 is a graph diagram explaining the principle of the present invention, and FIG. 3 is an embodiment of the alarm condition determination circuit used in the present invention. FIG. 4 is a diagram showing an embodiment of the noise level detection circuit used in the present invention, FIG. 5 is a diagram showing an embodiment of the oscillation circuit used in the present invention, and FIG. is a waveform diagram for explaining the operation of the oscillation circuit used in the present invention. In FIG. 1, 1 is an alarm condition determination circuit, 2 is a microphone, 3 is a noise level detection circuit, 4 is an oscillation circuit, 5 is an amplifier circuit, and 6 is a sound output device. In the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 車両の警報条件を判定する回路と、マイクと、
該マイクから該車両の騒音レベルを検出する回路
と、該警報条件が満たされたとき断続型音響信号
に対応する電気信号を発生すると共にその吹鳴継
続時間を該騒音レベルに比例して長くする発振回
路と、該発振回路の出力信号を増幅して音響出力
装置に与える回路と、を備えたことを特徴とする
車両の警報装置。 A circuit for determining vehicle alarm conditions, a microphone,
a circuit for detecting the noise level of the vehicle from the microphone; and an oscillation circuit that generates an electrical signal corresponding to the intermittent acoustic signal when the alarm condition is met and lengthens the duration of the sound in proportion to the noise level. A vehicle alarm device comprising: a circuit; and a circuit that amplifies an output signal of the oscillation circuit and provides the amplified signal to an acoustic output device.
JP12495989U 1989-10-24 1989-10-24 Vehicle alarm system Expired - Lifetime JPH0737996Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12495989U JPH0737996Y2 (en) 1989-10-24 1989-10-24 Vehicle alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12495989U JPH0737996Y2 (en) 1989-10-24 1989-10-24 Vehicle alarm system

Publications (2)

Publication Number Publication Date
JPH0367237U true JPH0367237U (en) 1991-07-01
JPH0737996Y2 JPH0737996Y2 (en) 1995-08-30

Family

ID=31672852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12495989U Expired - Lifetime JPH0737996Y2 (en) 1989-10-24 1989-10-24 Vehicle alarm system

Country Status (1)

Country Link
JP (1) JPH0737996Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002002424A (en) * 2000-06-16 2002-01-09 Tomio Fujimoto Pedestrian danger sensing system for electric car
JP2007189136A (en) * 2006-01-16 2007-07-26 Mitsumi Electric Co Ltd Filter cover mounting method and antenna device
JP2009040317A (en) * 2007-08-10 2009-02-26 Toyota Motor Corp Vehicle approach notification device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002002424A (en) * 2000-06-16 2002-01-09 Tomio Fujimoto Pedestrian danger sensing system for electric car
JP2007189136A (en) * 2006-01-16 2007-07-26 Mitsumi Electric Co Ltd Filter cover mounting method and antenna device
JP2009040317A (en) * 2007-08-10 2009-02-26 Toyota Motor Corp Vehicle approach notification device

Also Published As

Publication number Publication date
JPH0737996Y2 (en) 1995-08-30

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