JPS51113680A - Number detecting apparatus - Google Patents

Number detecting apparatus

Info

Publication number
JPS51113680A
JPS51113680A JP50036956A JP3695675A JPS51113680A JP S51113680 A JPS51113680 A JP S51113680A JP 50036956 A JP50036956 A JP 50036956A JP 3695675 A JP3695675 A JP 3695675A JP S51113680 A JPS51113680 A JP S51113680A
Authority
JP
Japan
Prior art keywords
detecting apparatus
number detecting
microwave
persons
detect
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
JP50036956A
Other languages
Japanese (ja)
Inventor
Hiroshi Kinoshita
Tatsuo Iwasaka
Hisao Hanmura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50036956A priority Critical patent/JPS51113680A/en
Priority to US05/669,802 priority patent/US4112419A/en
Priority to GB12338/76A priority patent/GB1517602A/en
Publication of JPS51113680A publication Critical patent/JPS51113680A/en
Priority to HK331/80A priority patent/HK33180A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/04—Systems determining presence of a target

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:A detecting apparatus of a number the detected body by the supersonic wave or the microwave, which can detect the number of persons in a wide area by a simple apparatus.
JP50036956A 1975-03-28 1975-03-28 Number detecting apparatus Pending JPS51113680A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP50036956A JPS51113680A (en) 1975-03-28 1975-03-28 Number detecting apparatus
US05/669,802 US4112419A (en) 1975-03-28 1976-03-25 Apparatus for detecting the number of objects
GB12338/76A GB1517602A (en) 1975-03-28 1976-03-26 Apparatus for detecting the number of objects
HK331/80A HK33180A (en) 1975-03-28 1980-06-19 Apparatus for detecting the number of objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50036956A JPS51113680A (en) 1975-03-28 1975-03-28 Number detecting apparatus

Publications (1)

Publication Number Publication Date
JPS51113680A true JPS51113680A (en) 1976-10-06

Family

ID=12484185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50036956A Pending JPS51113680A (en) 1975-03-28 1975-03-28 Number detecting apparatus

Country Status (1)

Country Link
JP (1) JPS51113680A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57175270A (en) * 1981-04-22 1982-10-28 Mitsubishi Electric Corp Controlling system for number of persons detector
CN109212482A (en) * 2018-09-12 2019-01-15 北京小米移动软件有限公司 Sound wave detecting method and device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505081A (en) * 1973-05-09 1975-01-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505081A (en) * 1973-05-09 1975-01-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57175270A (en) * 1981-04-22 1982-10-28 Mitsubishi Electric Corp Controlling system for number of persons detector
CN109212482A (en) * 2018-09-12 2019-01-15 北京小米移动软件有限公司 Sound wave detecting method and device

Similar Documents

Publication Publication Date Title
AU511835B2 (en) Detection og gonadotrophin or its b-subunit
CA1029845A (en) Ultrasonic detection system
JPS51113680A (en) Number detecting apparatus
JPS51129193A (en) Anticlutter radar device
JPS52453A (en) Device for detecting position of moving body
JPS5224489A (en) Radar
JPS51120196A (en) Alarm device
JPS51130188A (en) Signal detection equipment
JPS5211975A (en) Supersonic flaw detector
JPS51116694A (en) Radar object detecting device
JPS5236079A (en) Temperature detecting device
JPS51151187A (en) Water drop detector
JPS5230311A (en) Signal conveyance method
JPS51138483A (en) Number detector
JPS51150290A (en) Signal processing system
JPS51114855A (en) Acoustic surface wave frequency discriminator
JPS51140657A (en) Article sensing apparatus
JPS5357088A (en) Measurement device using electromagnetic ultrasonic waves
JPS51117696A (en) Gas-detection apparatus with the selectivity of detected gas.
JPS52127393A (en) Detection of foreign substance in processed foodstuffs and apparatus t herefor
JPS527874A (en) Gas-liquid contact apparatus
JPS5242195A (en) Banknote detector
JPS5213233A (en) Collosion detection apparatus
JPS5279470A (en) Collision preventing device
JPS527538A (en) Collision detector