FR2314545A1 - Dispositif pour detecter une tentative de franchissement d'une cloture - Google Patents

Dispositif pour detecter une tentative de franchissement d'une cloture

Info

Publication number
FR2314545A1
FR2314545A1 FR7518400A FR7518400A FR2314545A1 FR 2314545 A1 FR2314545 A1 FR 2314545A1 FR 7518400 A FR7518400 A FR 7518400A FR 7518400 A FR7518400 A FR 7518400A FR 2314545 A1 FR2314545 A1 FR 2314545A1
Authority
FR
France
Prior art keywords
pulse
fence
line
return
time
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
FR7518400A
Other languages
English (en)
Other versions
FR2314545B1 (fr
Inventor
Pierre Bizet
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7518400A priority Critical patent/FR2314545A1/fr
Publication of FR2314545A1 publication Critical patent/FR2314545A1/fr
Application granted granted Critical
Publication of FR2314545B1 publication Critical patent/FR2314545B1/fr
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
FR7518400A 1975-06-12 1975-06-12 Dispositif pour detecter une tentative de franchissement d'une cloture Granted FR2314545A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7518400A FR2314545A1 (fr) 1975-06-12 1975-06-12 Dispositif pour detecter une tentative de franchissement d'une cloture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7518400A FR2314545A1 (fr) 1975-06-12 1975-06-12 Dispositif pour detecter une tentative de franchissement d'une cloture

Publications (2)

Publication Number Publication Date
FR2314545A1 true FR2314545A1 (fr) 1977-01-07
FR2314545B1 FR2314545B1 (fr) 1979-08-10

Family

ID=9156430

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7518400A Granted FR2314545A1 (fr) 1975-06-12 1975-06-12 Dispositif pour detecter une tentative de franchissement d'une cloture

Country Status (1)

Country Link
FR (1) FR2314545A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1860625A1 (fr) * 2006-05-23 2007-11-28 El Far Electronics Systems 2000 Ltd. Système d'avertissement électronique et procédé
US7323985B2 (en) 2004-10-28 2008-01-29 El-Far Electronics Systems 2000 Ltd. Electronic warning system and method
CN102737458A (zh) * 2011-04-02 2012-10-17 叶志锋 脉冲电子围栏报警系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7323985B2 (en) 2004-10-28 2008-01-29 El-Far Electronics Systems 2000 Ltd. Electronic warning system and method
EP1860625A1 (fr) * 2006-05-23 2007-11-28 El Far Electronics Systems 2000 Ltd. Système d'avertissement électronique et procédé
CN102737458A (zh) * 2011-04-02 2012-10-17 叶志锋 脉冲电子围栏报警系统

Also Published As

Publication number Publication date
FR2314545B1 (fr) 1979-08-10

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Legal Events

Date Code Title Description
ST Notification of lapse