JPS57174786A - Detector for number of persons - Google Patents

Detector for number of persons

Info

Publication number
JPS57174786A
JPS57174786A JP56060808A JP6080881A JPS57174786A JP S57174786 A JPS57174786 A JP S57174786A JP 56060808 A JP56060808 A JP 56060808A JP 6080881 A JP6080881 A JP 6080881A JP S57174786 A JPS57174786 A JP S57174786A
Authority
JP
Japan
Prior art keywords
fixed object
information
circuit
persons
zero
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
JP56060808A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0138272B2 (enrdf_load_stackoverflow
Inventor
Susumu Maeda
Kazuo Tokui
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56060808A priority Critical patent/JPS57174786A/ja
Publication of JPS57174786A publication Critical patent/JPS57174786A/ja
Publication of JPH0138272B2 publication Critical patent/JPH0138272B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M11/00—Counting of objects distributed at random, e.g. on a surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP56060808A 1981-04-22 1981-04-22 Detector for number of persons Granted JPS57174786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56060808A JPS57174786A (en) 1981-04-22 1981-04-22 Detector for number of persons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56060808A JPS57174786A (en) 1981-04-22 1981-04-22 Detector for number of persons

Publications (2)

Publication Number Publication Date
JPS57174786A true JPS57174786A (en) 1982-10-27
JPH0138272B2 JPH0138272B2 (enrdf_load_stackoverflow) 1989-08-11

Family

ID=13153009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56060808A Granted JPS57174786A (en) 1981-04-22 1981-04-22 Detector for number of persons

Country Status (1)

Country Link
JP (1) JPS57174786A (enrdf_load_stackoverflow)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516075A (ja) * 1974-07-03 1976-01-19 Hitachi Ltd Ninzukenshutsusochi
JPS5289360A (en) * 1976-01-21 1977-07-26 Hitachi Ltd Jam detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516075A (ja) * 1974-07-03 1976-01-19 Hitachi Ltd Ninzukenshutsusochi
JPS5289360A (en) * 1976-01-21 1977-07-26 Hitachi Ltd Jam detector

Also Published As

Publication number Publication date
JPH0138272B2 (enrdf_load_stackoverflow) 1989-08-11

Similar Documents

Publication Publication Date Title
ES8707361A1 (es) Un sistema de deteccion de intrusos por infrarrojos.
FR2574200B1 (fr) Dispositif de detection d'intrus muni d'un dispositif d'antimasquage
EP0364137A3 (en) Automatic focus state detecting apparatus
CA2092649A1 (en) Human body detection system
FR2485839B1 (fr) Procede de detection de parole dans un signal de circuit telephonique et detecteur de parole le mettant en oeuvre
FR2509495B1 (fr) Procede de surveillance et d'alarme et le dispositif pour la mise en oeuvre du procede
JPS52152128A (en) Minute signal detection circuit
JPS57174786A (en) Detector for number of persons
JPS57210480A (en) Disk size detecting circuit
JPS5699354A (en) Image recorder
JPS55110905A (en) Defect detecting device
JPS5713380A (en) Discriminating circuit for radiation detecting signal
GB2336902A (en) System and method for discriminating between direct and reflected electromagnetic energy
JPS56158977A (en) Presence detector
JPS56112626A (en) Detecting device for leakage of fluid in nuclear power plant
JPS57131650A (en) Jam detector
JPS57109421A (en) Drop-out detecting circuit
JPS54144197A (en) Detection system
FR2394858A1 (fr) Dispositif autonome d'alarme anti-effraction
JPS54116969A (en) Time limit device
JPS5594170A (en) Fish detector for type discrimination
JPS55114031A (en) Detector for pulse absence
JPS57194376A (en) Detection of foreign matter
JPS641348A (en) Transmitter-receiver
JPS6424348A (en) Pattern recognizing device