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EP0179435A3 - Electric fence device - Google Patents

Electric fence device Download PDF

Info

Publication number
EP0179435A3
EP0179435A3 EP85113357A EP85113357A EP0179435A3 EP 0179435 A3 EP0179435 A3 EP 0179435A3 EP 85113357 A EP85113357 A EP 85113357A EP 85113357 A EP85113357 A EP 85113357A EP 0179435 A3 EP0179435 A3 EP 0179435A3
Authority
EP
European Patent Office
Prior art keywords
devices
electric fence
pulse
electrical
impedance
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
EP85113357A
Other languages
German (de)
Other versions
EP0179435A2 (en
EP0179435B1 (en
Inventor
Wilhelm Dipl.-Ing. Weinrich
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.)
Horizont Geraetewerk GmbH
Original Assignee
Horizont Geraetewerk GmbH
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 Horizont Geraetewerk GmbH filed Critical Horizont Geraetewerk GmbH
Priority to AT85113357T priority Critical patent/ATE69905T1/en
Publication of EP0179435A2 publication Critical patent/EP0179435A2/en
Publication of EP0179435A3 publication Critical patent/EP0179435A3/en
Application granted granted Critical
Publication of EP0179435B1 publication Critical patent/EP0179435B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G08B13/02—Mechanical actuation
    • G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
    • 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)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Catching Or Destruction (AREA)
  • Housing For Livestock And Birds (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

Electric fence devices (10) for connecting an electric fence (17), the electrical impedance of which can be varied in an unwanted and arbitrary manner by external influences, can be provided with effective testing and monitoring devices (12) for the condition of the electric fence even when they are equipped with a pulse generator circuit arrangement (13) having only a low internal electrical impedance. For this purpose, the testing and monitoring devices (12) should contain in combination electrical circuit sections (21) for determining an actual value corresponding to the electrical peak voltage of electrical pulses applied to the electric fence (17), devices (24) for developing a reference quantity for the pulse voltage and devices (25) for comparing the actual value determined and corresponding to the pulse voltage with this reference quantity and devices (27) for evaluating the result of the comparison, such as display, registration, alarm signalling and other means. The effectiveness of the testing and monitoring devices (12) can be improved even further by the fact that the pulse generator circuit arrangement (13) is associated with circuit sections for increasing the internal electrical impedance which are to be activated temporarily. Twin pulses can also be provided, of which one part pulse is formed with less internal impedance and the other part pulse is formed with higher internal impedance of the pulse generator circuit arrangement. <IMAGE>
EP85113357A 1984-10-25 1985-10-22 Electric fence device Expired - Lifetime EP0179435B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85113357T ATE69905T1 (en) 1984-10-25 1985-10-22 ELECTRIC FENCING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3439015 1984-10-25
DE3439015A DE3439015A1 (en) 1984-10-25 1984-10-25 ELECTRIC FENCE

Publications (3)

Publication Number Publication Date
EP0179435A2 EP0179435A2 (en) 1986-04-30
EP0179435A3 true EP0179435A3 (en) 1988-07-13
EP0179435B1 EP0179435B1 (en) 1991-11-27

Family

ID=6248697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113357A Expired - Lifetime EP0179435B1 (en) 1984-10-25 1985-10-22 Electric fence device

Country Status (3)

Country Link
EP (1) EP0179435B1 (en)
AT (1) ATE69905T1 (en)
DE (2) DE3439015A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3727787A1 (en) * 1987-08-20 1989-03-02 Horizont Geraetewerk GENERATOR FOR GENERATING ELECTRIC FENCE IMPULSES
FR2654239B1 (en) * 1989-11-06 1994-04-15 Serpe Iesm METHOD FOR PROTECTING A FORBIDDEN SITE AGAINST INTRUSIONS AND SYSTEM FOR CARRYING OUT SAID METHOD.
FR2673020B1 (en) * 1991-02-20 1995-05-19 Seroe Iesm SYSTEM FOR PROTECTING A FORBIDDEN SITE AGAINST INTRUSIONS, INCLUDING AN ELECTRIFIED FENCE.
DE4115630A1 (en) * 1991-05-14 1992-11-19 Ako Werke Gmbh & Co Electrified pasture fence monitoring circuit - acts cyclically with protection pulses and indicates low resistance condition of electrified fence compared to undisturbed high resistance condition
FR2859302B1 (en) * 2003-08-27 2005-11-11 Serpe Iesm Soc D Etudes Et De SYSTEM FOR DETECTING AND LOCATING FAILURES IN AN ELECTRIFIED FENCE
CN102722950B (en) * 2012-06-28 2015-10-21 彭磊 A kind of method of fence supervisory system and location
CN114333272B (en) * 2021-12-23 2024-04-02 深圳市豪恩安全科技有限公司 High-voltage pulse high-precision detection system and method
WO2024194899A1 (en) * 2023-03-21 2024-09-26 A-1 Fence Products Company Pvt Ltd Intrusion detection system for fence

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1901868A1 (en) * 1968-01-18 1969-10-02 Matsushita Electric Ind Co Ltd Method and device for measuring the impedance of a coaxial line
DE3100936A1 (en) * 1980-01-15 1981-12-03 Matsushita Electric Works Ltd., Kadoma, Osaka "Intruder warning system"

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581299A (en) * 1968-11-19 1971-05-25 Flo Tronics Inc Electric fence charger having ground detector
DE2323212A1 (en) * 1973-05-09 1974-11-28 Utina Elektrowerk Gmbh ELECTRIC FENCE
US4523187A (en) * 1980-08-29 1985-06-11 Norman W. Hutchinson & Sons Pty. Ltd. Alarm system for electric fences

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1901868A1 (en) * 1968-01-18 1969-10-02 Matsushita Electric Ind Co Ltd Method and device for measuring the impedance of a coaxial line
DE3100936A1 (en) * 1980-01-15 1981-12-03 Matsushita Electric Works Ltd., Kadoma, Osaka "Intruder warning system"

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BULL. SEV. Band 62, 16. Oktober 1971, Seiten 1009-1010, Zürich, CH; S. SZPOR et al.: "Mesure de la résistance de terre du pylône de ligne de transmission en ondes de choc répétées" *

Also Published As

Publication number Publication date
EP0179435A2 (en) 1986-04-30
DE3439015A1 (en) 1986-04-30
DE3439015C2 (en) 1989-08-03
EP0179435B1 (en) 1991-11-27
DE3584760D1 (en) 1992-01-09
ATE69905T1 (en) 1991-12-15

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