DE2656349A1 - High security interwoven wire fence - has plastic sheath enclosing steel reinforcing wire and resistance wire connected in bridge circuit - Google Patents

High security interwoven wire fence - has plastic sheath enclosing steel reinforcing wire and resistance wire connected in bridge circuit

Info

Publication number
DE2656349A1
DE2656349A1 DE19762656349 DE2656349A DE2656349A1 DE 2656349 A1 DE2656349 A1 DE 2656349A1 DE 19762656349 DE19762656349 DE 19762656349 DE 2656349 A DE2656349 A DE 2656349A DE 2656349 A1 DE2656349 A1 DE 2656349A1
Authority
DE
Germany
Prior art keywords
wire
resistance
fence
bridge circuit
plastic sheath
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.)
Withdrawn
Application number
DE19762656349
Other languages
German (de)
Inventor
Ernst Blaser
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.)
BLASER, ERNST, 4200 OBERHAUSEN, DE
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19762656349 priority Critical patent/DE2656349A1/en
Priority to CH1398077A priority patent/CH624447A5/en
Priority to ZA00777282A priority patent/ZA777282B/en
Priority to SE7713904A priority patent/SE7713904L/en
Priority to DK546577A priority patent/DK546577A/en
Priority to IT5213977A priority patent/IT1090733B/en
Priority to BE183309A priority patent/BE861679A/en
Priority to ES464950A priority patent/ES464950A1/en
Priority to FR7737521A priority patent/FR2373655A1/en
Priority to NL7713795A priority patent/NL7713795A/en
Publication of DE2656349A1 publication Critical patent/DE2656349A1/en
Withdrawn legal-status Critical Current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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

The fence or barrier is designed for installations which require a high standard of security. The fence consists of an interlinked metallic wire screen or netting. The metallic wire netting has an electrical resistance wire, preferably sheathed in a plastic material. The electrical resistance wire extends along the wire mesh. A resistance measuring bridge is connected to alarm circuits which transmit an alarm signal when a resistance variation is detected. This resistance variation will occur when the wire screen is damaged. Within the plastic sheath covering the resistance wire and parallel to this wire is a steel wire. The steel wire is insulated from the resistance wire and is designed to mechanically reinforce the wire mesh screen.

Description

Beschreibung SchleifenalarmsystemDescription loop alarm system

Zum Schutz von Objekten werden Umzäumungen aus Drahtgeflecht aufgestellt, die unbefugten Personen den Zutritt zu dem zu schützenden Gelände verwehren sollen. Solche Maschendrahtgeflechte stellen nur in mechanische Hindernis dar. Sie sind mittels einfacher Werkzeuge leicht zu beschädigen und zu beseitigen, so dass ein Zutritt zu dem zu sichernden Gelände leicht zu bewerkstelligen ist. Dieser Schutz ist also minimal und das Sicherheitsrisiko groß.Wire mesh fencing is set up to protect objects, the unauthorized persons should refuse access to the area to be protected. Such wire meshes only represent a mechanical obstacle. They are easy to damage and remove using simple tools, so that a Access to the area to be secured is easy to achieve. This protection is therefore minimal and the security risk is great.

Sollen mit solchen Maschendrahtgeflechten Objekte mit hohem oder höchstem Sicherheitsrisiko geschützt werden, so müssen sie mit eier zusätzlichen Einrichtung versehen werden, die jede Art von Beschädigung des Maschendrahtgeflechtes als Signal an eine Meldezentrale weitergibt, so dass von dort entsprechende Massnahmen eingeleitet werden können.Shall with such wire mesh objects with high or highest Security risk must be protected, so they must be equipped with an additional facility that any kind of damage to the wire mesh as a signal to a reporting center so that appropriate measures can be initiated from there can be.

Diese Einrichtung muss so gestaltet sein, dass die Auslösung von Fehlalarmen möglichst gering, am besten socar gleich Null ist. Es scheiden also Einrichtungen aus, die einen Schutz durch Ultraschall- oder Ochfrequenzfelder oder durch kapazitive Melder erreichen, da diese Einrichtungen auf beiden Seiten des Maschendrahtgeflechtes wirksam sind und ausserdem durch eine Reihe von Faktoren beeinflusst werden (z.B. durch Tiere, Witterungseinflüsse usw.).This facility must be designed in such a way that false alarms are triggered as low as possible, ideally socar is zero. So institutions divide protection by means of ultrasonic or oxy-frequency fields or capacitive Detectors reach because these facilities are on both sides of the wire mesh are effective and are also influenced by a number of factors (e.g. by animals, weather influences, etc.).

Die zum Schutz angemeldete Einrichtung benutzt das altbekannte System einer Ruhestromschleife in Brücken oder Widerstandsmesschaltungen dermassen, dass ein oder zwei Zweige eier Brückenschaltung durch den Drahc des Maschendrahtegeflechtes dargestellt wird. Die endliche Aneinanderreihung der Einzeldrähte dieses Geflechtes erbigt die elektrische Leitfähigkeit der Brückenzweige. Diese Einzeldrähte bestehen vorzugsweise aus einem isolierten (Kunststoffmantel) Widerstandsdraht. Zur Verstärkung in mechanischer Hinsicht kann ein zusätzlicher Stahldraht innerhalb des Kunststoffmantels eingebracht sein.The facility registered for protection uses the well-known system a closed-circuit current loop in bridges or resistance measuring circuits in such a way that one or two branches of a bridge circuit through the wire of the wire mesh is pictured. The finite stringing together of the individual wires of this braid inherits the electrical conductivity of the bridge branches. These strands are made preferably made of an insulated (plastic sheath) resistance wire. For reinforcement from a mechanical point of view, an additional steel wire can be placed inside the plastic jacket be brought in.

Der Widerstandsdraht hat einen, dem unbefugten Eindringling unbekannten, Widerrstandswert, so dass schon die Überbrückung mitt einem normalen Draht zu einer minderung des entsprechenden Brückenzweiger und damit auch zur Auslösung eines Meldesignals führt.The resistance wire has a, unknown to the unauthorized intruder, Resistance value, so that bridging with a normal wire to a Reduction of the corresponding bridge branch and thus also to trigger a message signal leads.

Claims (5)

Bla@t @ zur Beschreibung @@@leiferal@@@@@ @er S C H U T Z A N S P R Ü C H E : 1. Scheifenalarmsystem für Umzäunungen auf Marchendrahgeflecht zum Objektschutz dadurch gekennzeichnet, der das Maschnedrahlgeflecht vorzugsweise aus einem Kunststoffummantelten B Widerstandsdraht C besteht.Bla @ t @ for description @@@ leiferal @@@@@ @er S C H U T Z A N S P R Ü C H E: 1. Loop alarm system for fences on Marchend wire mesh for property protection characterized in that the machine-jet braid is preferably sheathed from a plastic B resistance wire C is made. 2.) Schleifenalarmsystem nach Anspruch 1.) dadurch gekennzeichnet, dass der Widerstandsdraht C des Merschendraligeflechtes A einen A einen oder zwei Zweige einer Brückenschaltung G darstellt. 2.) Loop alarm system according to claim 1.) characterized in that that the resistance wire C of the Merschendrali braid A one A one or two Branches of a bridge circuit G represents. 3.) Schleifenalarmsystem nach Anspruch 1.) und 2.) dadurch gekennzeichnet, dass zur Verstärkung des Maschendreaht, geflechtes A zusätzlich zum Widerstandsdreht C ein Stahldraht D innerhalb des Kubststoffmantels B eingebracht is@. 3.) Loop alarm system according to claim 1.) and 2.) characterized in that that to reinforce the wire mesh, braid A turns in addition to the resistance C a steel wire D is inserted inside the cubic material jacket B. 4.) Schleifenalarmsystem nach Anspruch 1.) bis 3.) dadurch gekennzeichnet, dass an Stelle des Widerstandsdrahtes C auch im Zuge des Stahldrahtes D Einzelwiderstände E eingebracht werden können. 4.) Loop alarm system according to claim 1.) to 3.) characterized in that that instead of the resistance wire C there are also individual resistances in the course of the steel wire D. E can be introduced. 5.) Schleifenalarmsystem nach Anspruch 1.) bis 4.) dadurch gekennzeichnet, dass als zusätzliche Sicherung eine ständige hochohmige Erdschlussüberwachung F erfolgt. 5.) Loop alarm system according to claim 1.) to 4.), characterized in that that a permanent high-resistance earth fault monitoring F he follows.
DE19762656349 1976-12-13 1976-12-13 High security interwoven wire fence - has plastic sheath enclosing steel reinforcing wire and resistance wire connected in bridge circuit Withdrawn DE2656349A1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
DE19762656349 DE2656349A1 (en) 1976-12-13 1976-12-13 High security interwoven wire fence - has plastic sheath enclosing steel reinforcing wire and resistance wire connected in bridge circuit
CH1398077A CH624447A5 (en) 1976-12-13 1977-11-16 Surrounding fence with an alarm device for security-threatened installations
ZA00777282A ZA777282B (en) 1976-12-13 1977-12-06 Fence enclosure for security-risk premises comprising a wire mesh
SE7713904A SE7713904L (en) 1976-12-13 1977-12-07 NET FENCE FOR PROTECTION OF INSTALLATIONS
DK546577A DK546577A (en) 1976-12-13 1977-12-08 FENCE OF THE WIRE FOR USE AT RISK PROPERTIES
IT5213977A IT1090733B (en) 1976-12-13 1977-12-09 PROVISION FOR FENCING AREAS SUBJECT TO SECURITY SURVEILLANCE
BE183309A BE861679A (en) 1976-12-13 1977-12-09 MESH FENCE WITH BRAIDED METAL WIRE MESH FOR HIGH SECURITY INSTALLATIONS
ES464950A ES464950A1 (en) 1976-12-13 1977-12-10 Voya metal fabric for installations threatened in your security. (Machine-translation by Google Translate, not legally binding)
FR7737521A FR2373655A1 (en) 1976-12-13 1977-12-13 BRAIDED METAL WIRE MESH FENCE FOR HIGH SECURITY INSTALLATIONS
NL7713795A NL7713795A (en) 1976-12-13 1977-12-13 FENCE CONSISTING OF A WIRE BRAIDING WITH MESHES FOR AN EQUIPMENT WHOSE SAFETY IS AT RISK.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762656349 DE2656349A1 (en) 1976-12-13 1976-12-13 High security interwoven wire fence - has plastic sheath enclosing steel reinforcing wire and resistance wire connected in bridge circuit

Publications (1)

Publication Number Publication Date
DE2656349A1 true DE2656349A1 (en) 1978-06-22

Family

ID=5995373

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762656349 Withdrawn DE2656349A1 (en) 1976-12-13 1976-12-13 High security interwoven wire fence - has plastic sheath enclosing steel reinforcing wire and resistance wire connected in bridge circuit

Country Status (3)

Country Link
BE (1) BE861679A (en)
DE (1) DE2656349A1 (en)
ZA (1) ZA777282B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006999A1 (en) * 1980-02-25 1981-09-24 Ernst 4200 Oberhausen Blaser Circuit for security fence - has four wires forming arms of Wheatstone bridge to release alarm when short-circuited
EP0039371A2 (en) * 1980-02-25 1981-11-11 Ernst Blaser Surveillance device for the field behind a security fence
DE3036063A1 (en) * 1980-09-25 1982-05-06 Wilhelm 4630 Bochum Tretschoks Security wire for electromechanical security fence - has core wires bridge connected for temperature compensation, and helically wound support wires
DE102016100143A1 (en) * 2016-01-05 2017-07-06 Protego24 Perimeter Protection GmbH Wire arrangement for the production of a wire mesh suitable for a safety fence, wire mesh for a safety fence and manufacturing method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1278646A (en) * 1916-08-14 1918-09-10 Toledo Scale Co Weighing-scale.
US3594770A (en) * 1968-10-28 1971-07-20 Lewis Eng Co Printed-circuit type security apparatus for protecting areas
GB1244031A (en) * 1968-01-05 1971-08-25 British Railways Board Improvements relating to security fences

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1278646A (en) * 1916-08-14 1918-09-10 Toledo Scale Co Weighing-scale.
GB1244031A (en) * 1968-01-05 1971-08-25 British Railways Board Improvements relating to security fences
US3594770A (en) * 1968-10-28 1971-07-20 Lewis Eng Co Printed-circuit type security apparatus for protecting areas

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006999A1 (en) * 1980-02-25 1981-09-24 Ernst 4200 Oberhausen Blaser Circuit for security fence - has four wires forming arms of Wheatstone bridge to release alarm when short-circuited
EP0039371A2 (en) * 1980-02-25 1981-11-11 Ernst Blaser Surveillance device for the field behind a security fence
EP0039371A3 (en) * 1980-02-25 1982-03-24 Ernst Blaser Security fence, circuit arrangement and surveillance of the field behind the fence
DE3036063A1 (en) * 1980-09-25 1982-05-06 Wilhelm 4630 Bochum Tretschoks Security wire for electromechanical security fence - has core wires bridge connected for temperature compensation, and helically wound support wires
DE102016100143A1 (en) * 2016-01-05 2017-07-06 Protego24 Perimeter Protection GmbH Wire arrangement for the production of a wire mesh suitable for a safety fence, wire mesh for a safety fence and manufacturing method

Also Published As

Publication number Publication date
ZA777282B (en) 1978-10-25
BE861679A (en) 1978-03-31

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Legal Events

Date Code Title Description
OHJ Non-payment of the annual fee
OI Miscellaneous see part 1
8127 New person/name/address of the applicant

Owner name: BLASER, ERNST, 4200 OBERHAUSEN, DE

8110 Request for examination paragraph 44
8130 Withdrawal