JPH02171684A - Heatwave-ultrasonic composite type burglar sensor - Google Patents

Heatwave-ultrasonic composite type burglar sensor

Info

Publication number
JPH02171684A
JPH02171684A JP63326945A JP32694588A JPH02171684A JP H02171684 A JPH02171684 A JP H02171684A JP 63326945 A JP63326945 A JP 63326945A JP 32694588 A JP32694588 A JP 32694588A JP H02171684 A JPH02171684 A JP H02171684A
Authority
JP
Japan
Prior art keywords
output
heatwave
ultrasonic
type
detected
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.)
Pending
Application number
JP63326945A
Other languages
Japanese (ja)
Inventor
Toshimasa Takagi
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP63326945A priority Critical patent/JPH02171684A/en
Publication of JPH02171684A publication Critical patent/JPH02171684A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To secure a prescribed reception sensitivity irrespective of the direction of a detection area by providing a gain control means which varies the gain of a reception amplifier of a heatwave-type human body detecting sensor in accordance with the direction of the detection area.
CONSTITUTION: A heatwave-ultrasonic composite type burglar sensor has a construction wherein an ultrasonic-type sensor unit 1 and a heatwave-type sensor unit 2 are combined with each other by a signal processing circuit 3. An invader is detected by the signal processing circuit 3 on the basis of an output of each of the sensor units 1 and 2 and an alarm output means 7 is driven by an output of this signal processing circuit 3. The aforesaid ultrasonic-type sensor unit 1 is of a Doppler type, and a transmitter 11 is driven by an output of an oscillator 10 to transmit an ultrasonic wave, while reflection by an object is received by a receiver 12. An output of the receiver 12 is amplified by a received-wave amplifier 13, a reception signal thus obtained is compared with a transmission signal, the output of the oscillator 10, a frequency shift is detected by a frequency shift detector 14 on the basis of the comparison, and the presence of the invader is detected from this frequency shift.
COPYRIGHT: (C)1990,JPO&Japio
JP63326945A 1988-12-23 1988-12-23 Heatwave-ultrasonic composite type burglar sensor Pending JPH02171684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63326945A JPH02171684A (en) 1988-12-23 1988-12-23 Heatwave-ultrasonic composite type burglar sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63326945A JPH02171684A (en) 1988-12-23 1988-12-23 Heatwave-ultrasonic composite type burglar sensor

Publications (1)

Publication Number Publication Date
JPH02171684A true JPH02171684A (en) 1990-07-03

Family

ID=18193528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63326945A Pending JPH02171684A (en) 1988-12-23 1988-12-23 Heatwave-ultrasonic composite type burglar sensor

Country Status (1)

Country Link
JP (1) JPH02171684A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0682330A1 (en) * 1994-05-09 1995-11-15 Matsushita Electric Industrial Co., Ltd. Detecting apparatus and measuring method of warm object
KR100472880B1 (en) * 2002-10-21 2005-03-10 (주)동남엔텍 Microwave motion sensor module that use radio frequency and Perception method of object to use thereof
JP2005292129A (en) * 2004-03-12 2005-10-20 National Institute Of Advanced Industrial & Technology Ultrasonic position measuring instrument

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0682330A1 (en) * 1994-05-09 1995-11-15 Matsushita Electric Industrial Co., Ltd. Detecting apparatus and measuring method of warm object
US5726449A (en) * 1994-05-09 1998-03-10 Matsushita Electric Industrial Co., Ltd Detecting apparatus and measuring method of warm object
KR100472880B1 (en) * 2002-10-21 2005-03-10 (주)동남엔텍 Microwave motion sensor module that use radio frequency and Perception method of object to use thereof
JP2005292129A (en) * 2004-03-12 2005-10-20 National Institute Of Advanced Industrial & Technology Ultrasonic position measuring instrument
JP4543214B2 (en) * 2004-03-12 2010-09-15 独立行政法人産業技術総合研究所 Ultrasonic position measuring device

Similar Documents

Publication Publication Date Title
JPH02171684A (en) Heatwave-ultrasonic composite type burglar sensor
JPH03110490A (en) Vehicle peripheral monitor device
JPS6333684A (en) Ultrasonic object detector
JPS60115883A (en) Radar equipment
JPH02162493A (en) Heat ray and ultrasonic composite type burglar preventing sensor
JPS62277584A (en) Ultrasonic body detector
JPS61163045A (en) Crime prevention device in vehicle
JPH0283484A (en) Doppler sensor
JPS61186881A (en) Ultrasonic sensor
JPH0483190A (en) Ultrasonic sensor
JPH04350588A (en) Ultrasonic detector
JPS635288A (en) Ultrasonic body detector
JPS6193970A (en) Device for detecting moving direction of moving object
JPS59218973A (en) On-vehicle obstacle detector
JPS61133886A (en) Angle detector
JPS61186879A (en) Ultrasonic sensor
JPS6078375A (en) Combined ultrasonic and ir type object detector
JPH0219785A (en) Ultrasonic sensor
JPS62172286A (en) Ultrasonic matter detector
JPS597278A (en) Detector of obstruction
JP2771892B2 (en) Human body detection device
JPS61269432A (en) System for detecting distance
JPS61270689A (en) Ultrasonic object detector
JPS63158481A (en) Radio wave type space sensor
EP0372435A3 (en) Monitoring system