CH683385A5 - HF shop goods security installation - uses transmitting and receiving antennae at pay desk or exit, receiving antenna being of ferrite material of relatively small dimensions - Google Patents

HF shop goods security installation - uses transmitting and receiving antennae at pay desk or exit, receiving antenna being of ferrite material of relatively small dimensions Download PDF

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Publication number
CH683385A5
CH683385A5 CH2865/91A CH286591A CH683385A5 CH 683385 A5 CH683385 A5 CH 683385A5 CH 2865/91 A CH2865/91 A CH 2865/91A CH 286591 A CH286591 A CH 286591A CH 683385 A5 CH683385 A5 CH 683385A5
Authority
CH
Switzerland
Prior art keywords
exit
antenna
receiving
receiving antenna
ferrite material
Prior art date
Application number
CH2865/91A
Other languages
German (de)
Inventor
Maurice Froidevaux
Georges Cerny
Original Assignee
Scanmatic Security Systems Ag
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 Scanmatic Security Systems Ag filed Critical Scanmatic Security Systems Ag
Priority to CH2865/91A priority Critical patent/CH683385A5/en
Publication of CH683385A5 publication Critical patent/CH683385A5/en

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Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/22Electrical actuation
    • G08B13/24Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2414Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/22Electrical actuation
    • G08B13/24Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2465Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2468Antenna in system and the related signal processing
    • G08B13/2474Antenna or antenna activator geometry, arrangement or layout

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

The receiving antenna (FA) is so small that it can be directly integrated in the housing of the transmitting antenna or inconspicuously accommodated in a small housing installed on the side of the space to be monitored to face the transmitting antenna. The h.f. waves of the transmitting antenna can be intercepted by one or more axially aligned ferrite element (X,Y,Z), amplified and evaluated by an electronic computer (MCX). ADVANTAGE - Reduced material and therefore cost. Wider and more elegant exit, more easily satisfying fire regulations can be realised.

Description

1 1

CH 683 385 A5 CH 683 385 A5

2 2nd

Beschreibung description

Die Umsatzverluste durch Ladendiebstahl im Detailhandel betragen alleine in der Schweiz über 100 Millionen jährlich. Der Einsatz von elektronischen Warensicherungssystemen ist daher unvermeidbar geworden. Dabei wird vermehrt von körperdurchstrahlenden Hochfrequenzwellen Gebrauch gemacht. The loss of sales due to shoplifting in the retail trade amounts to over 100 million annually in Switzerland alone. The use of electronic goods surveillance systems has therefore become unavoidable. Increasing use is made of high-frequency waves radiating through the body.

Ein herkömmliches Waren-Sicherungssystem besteht in der Grundausführung aus zwei Rahmenelementen, der Sende- und der Empfangsantenne. Damit ein homogenes elektromagnetisches Feld zwischen den am Ausgang eines zu überwachenden Raumes aufgestellten Antennen erzeugt werden kann, müssen die jeweiligen Antennenrahmen eine Flächengrösse zwischen 0,3 und 0,8 m2 aufweisen. The basic version of a conventional goods security system consists of two frame elements, the transmitting and receiving antennas. In order for a homogeneous electromagnetic field to be generated between the antennas installed at the exit of a room to be monitored, the respective antenna frames must have an area between 0.3 and 0.8 m2.

Die am Ausgang eines Verkaufsgeschäftes aufgestellten Rahmen-Antennenelemente erzeugen ein elektromagnetisches Überwachungsfeld, welches der Kunde beim Verlassen durchschreiten muss. Die Ware wird mit einem in der Frequenz auf das System abgestimmten Schwingkreis in Form einer Etikette versehen, welche beim Zahlen an der Kasse weggenommen oder neutralisiert wird. Wird eine solche Sicherheitsetikette in das Überwachungsfeld getragen, dann wird dieses Feld verstimmt, was zur Alarmauslösung führt. The frame antenna elements set up at the exit of a sales shop generate an electromagnetic monitoring field, which the customer must pass through when leaving. The goods are provided with a frequency-tuned oscillating circuit in the form of a label, which is removed or neutralized when paying at the checkout. If such a security label is carried into the monitoring field, then this field is detuned, which leads to an alarm being triggered.

Die bekannten Ladendiebstahl-Sicherungssysteme arbeiten im Kurzwellenbereich zwischen 5 und 10 MHz. Die Erfindung schlägt vor, die in diesem Frequenzbereich herkömmlichen Empfänger-Rahmen-Antennen durch in den Abmessungen wesentlich kleineren Ferritantennen zu ersetzen. Dadurch ist es möglich, die Zahl der sichtbaren Antennenelemente zu halbieren. Die Ladenausgänge können dann z.B. nur mit einer Antennenanordnung bei gleicher Funktionsweise abgesichert werden. Der Vorteil liegt nicht nur in einer Material- und Kostenersparnis. Die Laden- und Check out-Durchgänge in Supermärkten werden breiter und optisch eleganter und nicht zuletzt, die Feuerpolizei-Vorschriften für breite Ausgänge in Kaufhäusern können erfüllt werden. The known shoplifting security systems work in the shortwave range between 5 and 10 MHz. The invention proposes to replace the receiver frame antennas which are conventional in this frequency range with ferrite antennas which are considerably smaller in size. This makes it possible to halve the number of visible antenna elements. The shop exits can then e.g. can only be secured with an antenna arrangement with the same functionality. The advantage is not only in material and cost savings. The store and check-out passages in supermarkets are becoming wider and more elegant, and last but not least, the fire police regulations for wide exits in department stores can be met.

Ausführungsbeispiele der Erfindung werden anhand der Zeichnung näher erläutert. In dieser zeigen: Embodiments of the invention are explained in more detail with reference to the drawing. In this show:

Fig. 1 und 2 bekannte Antennenanordnungen, 1 and 2 known antenna arrangements,

Fig. 3 das Prinzip-Schema einer Anlage mit Fer-rit-Elementen, 3 shows the principle diagram of a plant with fer-rit elements,

Fig. 4 ein sog. Ein-Antennen-System 4 shows a so-called one-antenna system

Fig. 5 und 6 Anlagen mit getrennten Sende- und Empfangsantennen. 5 and 6 systems with separate transmit and receive antennas.

Fig. 1 und 2 zeigen eine herkömmliche Ausgangsabsicherung mit zwei bzw. drei Antennenelementen. 1 and 2 show a conventional output protection with two and three antenna elements, respectively.

Wie in Fig. 3 dargestellt, werden die Hochfrequenzwellen der Sendeantenne mit einer oder mehreren X,Y,Z - axial gerichteten Ferritelementen FA empfangen, verstärkt und durch die MCX-Mikropro-zesselektronik ausgewertet. As shown in FIG. 3, the high-frequency waves of the transmitting antenna are received with one or more X, Y, Z-axially directed ferrite elements FA, amplified and evaluated by the MCX microprocess electronics.

Fig. 4 zeigt eine Überwachungsanlage, bei der die Ferritempfängerantenne FA direkt in die Sendeantenne S integriert ist. Bei diesem Ein-Antennen-system ist somit von aussen nur noch ein Antennensystem sichtbar. Fig. 4 shows a monitoring system in which the ferrite receiver antenna FA is integrated directly into the transmitting antenna S. With this one-antenna system, only one antenna system is visible from the outside.

Die Fig. 5 und 6 zeigen je eine Anlage, bei denen ein wirkungsvolles homogenes Überwachungsfeld mit getrennt von der Sendeantenne installierten MCX-Ferritantennen-Empfängern erzeugt wird. Die Grundidee der Erfindung, die Empfängerantennen der Ladendiebstahl-Sicherungsanlagen auf kleinsten Abmessungen praktisch unsichtbar installieren zu können, öffnet eine Vielzahl von neuen Anwendungsmöglichkeiten in der Hochfrequenz-Warensicherungstechnologie. 5 and 6 each show a system in which an effective homogeneous monitoring field is generated with MCX ferrite antenna receivers installed separately from the transmitting antenna. The basic idea of the invention, to be able to install the receiver antennas of the shoplifting security systems practically invisibly on the smallest dimensions, opens up a large number of new application possibilities in high-frequency goods security technology.

Claims (1)

Patentanspruch Claim Hochfrequenz-Waren-Sicherungsanlage mit einer Sende- und einer Empfängerantenne, dadurch gekennzeichnet, dass die Empfängerantenne aus Ferritmaterial besteht, deren Abmessungen so gewählt sind, dass sie entweder in dem Gehäuse der Sendeantenne integrierbar ist oder in einem kleinen Gehäuse auf der der Sendeantenne gegenüberliegenden Seite des zu überwachenden Durchgangs aufgestellt ist.High-frequency goods security system with a transmitting and a receiving antenna, characterized in that the receiving antenna consists of ferrite material, the dimensions of which are selected so that it can either be integrated in the housing of the transmitting antenna or in a small housing on the side opposite the transmitting antenna of the passage to be monitored is set up. 55 1010th 1515 2020th 2525th 3030th 3535 4040 4545 5050 5555 6060 6565 22nd
CH2865/91A 1991-09-27 1991-09-27 HF shop goods security installation - uses transmitting and receiving antennae at pay desk or exit, receiving antenna being of ferrite material of relatively small dimensions CH683385A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH2865/91A CH683385A5 (en) 1991-09-27 1991-09-27 HF shop goods security installation - uses transmitting and receiving antennae at pay desk or exit, receiving antenna being of ferrite material of relatively small dimensions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2865/91A CH683385A5 (en) 1991-09-27 1991-09-27 HF shop goods security installation - uses transmitting and receiving antennae at pay desk or exit, receiving antenna being of ferrite material of relatively small dimensions

Publications (1)

Publication Number Publication Date
CH683385A5 true CH683385A5 (en) 1994-02-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CH2865/91A CH683385A5 (en) 1991-09-27 1991-09-27 HF shop goods security installation - uses transmitting and receiving antennae at pay desk or exit, receiving antenna being of ferrite material of relatively small dimensions

Country Status (1)

Country Link
CH (1) CH683385A5 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013413A1 (en) * 1990-02-28 1991-09-05 Scientific Generics Limited Detection apparatus for security systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013413A1 (en) * 1990-02-28 1991-09-05 Scientific Generics Limited Detection apparatus for security systems

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Legal Events

Date Code Title Description
PFA Name/firm changed

Owner name: SCANMATIC SECURITY SYSTEMS AG

PL Patent ceased