JPS57113383A - Apparatus for detecting living thing - Google Patents

Apparatus for detecting living thing

Info

Publication number
JPS57113383A
JPS57113383A JP56000844A JP84481A JPS57113383A JP S57113383 A JPS57113383 A JP S57113383A JP 56000844 A JP56000844 A JP 56000844A JP 84481 A JP84481 A JP 84481A JP S57113383 A JPS57113383 A JP S57113383A
Authority
JP
Japan
Prior art keywords
spacing
living thing
output
sounds
comparator
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
JP56000844A
Other languages
Japanese (ja)
Inventor
Shinichi Sato
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP56000844A priority Critical patent/JPS57113383A/en
Publication of JPS57113383A publication Critical patent/JPS57113383A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/001—Acoustic presence detection

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE:To make possible forming a judgement on whether a living thing such as a human being exists or not within a room by a method wherein sound in the room is picked up by a microphone and spacing between sounds is measured. CONSTITUTION:A sound picked up by a microphone 1 is amplified by an amplifier 2, made to pass through a filter 3 capable of absorbing the noise of the amplifier 2 itself, compared by a comparator 4 in terms of voltage, and outputted as a pulse when its voltage exceeds a certain level. The output is inputted to the reset terminal of a counter 5, which recounts the time starting with 0 by means of an internal oscillator each time the output pulse is generated. Therefore, when the spacing between sounds, that is, the spacing between the output pulses of the comparator 4 is shorter than the set time, a man is judged to be found.
JP56000844A 1981-01-06 1981-01-06 Apparatus for detecting living thing Pending JPS57113383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56000844A JPS57113383A (en) 1981-01-06 1981-01-06 Apparatus for detecting living thing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56000844A JPS57113383A (en) 1981-01-06 1981-01-06 Apparatus for detecting living thing

Publications (1)

Publication Number Publication Date
JPS57113383A true JPS57113383A (en) 1982-07-14

Family

ID=11484932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56000844A Pending JPS57113383A (en) 1981-01-06 1981-01-06 Apparatus for detecting living thing

Country Status (1)

Country Link
JP (1) JPS57113383A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58218828A (en) * 1982-06-15 1983-12-20 ナシヨナル・テクニカル・システムズ Electronically operating device used for automatically deenergizing power utilization facility
JPH029891U (en) * 1988-07-01 1990-01-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58218828A (en) * 1982-06-15 1983-12-20 ナシヨナル・テクニカル・システムズ Electronically operating device used for automatically deenergizing power utilization facility
JPH029891U (en) * 1988-07-01 1990-01-22

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