FR2391519A1 - Dispositif de discrimination de presence - Google Patents

Dispositif de discrimination de presence

Info

Publication number
FR2391519A1
FR2391519A1 FR7714862A FR7714862A FR2391519A1 FR 2391519 A1 FR2391519 A1 FR 2391519A1 FR 7714862 A FR7714862 A FR 7714862A FR 7714862 A FR7714862 A FR 7714862A FR 2391519 A1 FR2391519 A1 FR 2391519A1
Authority
FR
France
Prior art keywords
detector
sheet
force
sheets
alarm system
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
FR7714862A
Other languages
English (en)
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.)
APP AUTOMATIQUES STE FSE
Original Assignee
APP AUTOMATIQUES STE FSE
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 APP AUTOMATIQUES STE FSE filed Critical APP AUTOMATIQUES STE FSE
Priority to FR7714862A priority Critical patent/FR2391519A1/fr
Publication of FR2391519A1 publication Critical patent/FR2391519A1/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
    • G01G7/02—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • G01L1/142—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors
    • G01L1/144—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors with associated circuitry
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/10—Mechanical actuation by pressure on floors, floor coverings, stair treads, counters, or tills

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Controlling Sheets Or Webs (AREA)

Abstract

Ce dispositif comporte un capteur capacitif 1 associé à un circuit de contrôle. Les variations de capacité du capteur en fonction des variations des déformations auquel est soumis ce capteur ne dépendent essentiellement que de l'aire des zones de déformation. Le dispositif permet de déterminer si le nombre de personnes ou d'objets présents à la surface du capteur dépasse un nombre donné
FR7714862A 1977-05-16 1977-05-16 Dispositif de discrimination de presence Pending FR2391519A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7714862A FR2391519A1 (fr) 1977-05-16 1977-05-16 Dispositif de discrimination de presence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7714862A FR2391519A1 (fr) 1977-05-16 1977-05-16 Dispositif de discrimination de presence

Publications (1)

Publication Number Publication Date
FR2391519A1 true FR2391519A1 (fr) 1978-12-15

Family

ID=9190829

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7714862A Pending FR2391519A1 (fr) 1977-05-16 1977-05-16 Dispositif de discrimination de presence

Country Status (1)

Country Link
FR (1) FR2391519A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0107012A1 (fr) * 1982-09-29 1984-05-02 Siemens Aktiengesellschaft Natte de détecteur
FR2658305A1 (fr) * 1990-02-09 1991-08-16 Commissariat Energie Atomique Dispositif et procede de detection de la presence d'etres vivants sur un trajet notamment de transfert de marchandises.
ES2255853A1 (es) * 2004-12-20 2006-07-01 Asociacion De Investigacion De La Industria Textil Alfombra con detector de presencia.
FR2886555A1 (fr) * 2005-06-07 2006-12-08 Stephane Malot Aire de jeux
WO2007125133A1 (fr) * 2006-03-22 2007-11-08 Asociación De Investigación De La Industria Textil Tapis équipé d'un détecteur de présence
FR2950539A1 (fr) * 2009-09-30 2011-04-01 Richard Corchero Aire de jeux recouverte d'un sol en elastomere

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778807A (en) * 1972-12-13 1973-12-11 Eg & G Inc Capacitive intrusion detection system with balanced resonant circuits
DE2435444A1 (de) * 1973-07-24 1975-02-13 Westinghouse Electric Corp Anordnung zur ueberwachung von stoerungen infolge mechanischer stoesse etc

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778807A (en) * 1972-12-13 1973-12-11 Eg & G Inc Capacitive intrusion detection system with balanced resonant circuits
DE2435444A1 (de) * 1973-07-24 1975-02-13 Westinghouse Electric Corp Anordnung zur ueberwachung von stoerungen infolge mechanischer stoesse etc

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0107012A1 (fr) * 1982-09-29 1984-05-02 Siemens Aktiengesellschaft Natte de détecteur
FR2658305A1 (fr) * 1990-02-09 1991-08-16 Commissariat Energie Atomique Dispositif et procede de detection de la presence d'etres vivants sur un trajet notamment de transfert de marchandises.
ES2255853A1 (es) * 2004-12-20 2006-07-01 Asociacion De Investigacion De La Industria Textil Alfombra con detector de presencia.
FR2886555A1 (fr) * 2005-06-07 2006-12-08 Stephane Malot Aire de jeux
EP1732048A3 (fr) * 2005-06-07 2007-05-09 Stéphane Malot Aire de jeux
WO2007125133A1 (fr) * 2006-03-22 2007-11-08 Asociación De Investigación De La Industria Textil Tapis équipé d'un détecteur de présence
FR2950539A1 (fr) * 2009-09-30 2011-04-01 Richard Corchero Aire de jeux recouverte d'un sol en elastomere
EP2305359A1 (fr) * 2009-09-30 2011-04-06 Richard Corchero Aire de jeux recouverte d'un sol en elastomere

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property