FR2593950A1 - Anti-theft system for a microcomputer - Google Patents

Anti-theft system for a microcomputer Download PDF

Info

Publication number
FR2593950A1
FR2593950A1 FR8601504A FR8601504A FR2593950A1 FR 2593950 A1 FR2593950 A1 FR 2593950A1 FR 8601504 A FR8601504 A FR 8601504A FR 8601504 A FR8601504 A FR 8601504A FR 2593950 A1 FR2593950 A1 FR 2593950A1
Authority
FR
France
Prior art keywords
alarm
keyboard
assembly
microcomputer
nut
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
FR8601504A
Other languages
French (fr)
Inventor
Gerard Thomas
Roger Gilet
Gerard Weisz
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.)
Individual
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 FR8601504A priority Critical patent/FR2593950A1/en
Publication of FR2593950A1 publication Critical patent/FR2593950A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/88—Detecting or preventing theft or loss
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1409—Mechanical actuation by lifting or attempted removal of hand-portable articles for removal detection of electrical appliances by detecting their physical disconnection from an electrical system, e.g. using a switch incorporated in the plug connector

Abstract

The invention relates to a set of devices assembled together on the same electronic card capable of being inserted without modification inside microcomputers to the IBM PC or AT (registered trademarks) standard. The principle consists in triggering an alarm or a series of alarms (siren, smoke, coded signal) when the hardware is moved or opened. Optical or electrical sensors or position switches transmit the information to an electronic unit 5 capable of driving a loud speaker 16, a smoke-generating nozzle or a cabled network internal to the building. A secret code inserted from the keyboard of the microcomputer and associated with a computer programme makes it possible to neutralise or set the alarm. The assembly is moulded into epoxy resin providing tamper-proofing. The electrical power supply to the assembly is provided by a battery 9 while the apparatus is switched off, the latter recharging itself during the normal operation of the hardware.

Description

DESCRIPTION
La présente invention concerne un ensemble de dispositif6 qui,rassemblès sur une carte électronique au format standard s'insère dans un micro-ordinateur et permettent de déclencher (ou simuler) une alarme en cas de
- déplacement (non autorisé) de l'appareil
- tentative d' fraction du coffret ou arrachage de la carte
Le système se compose des dispositifs suivants (Figure 1):
- la carte(1) est une carte électronique d'un
format standard pouvant s'insérer dans la plupart des
micro-ordinateurs du type IBM P C ou n T < marques deposées)
ou tout autre compatible.DESCRIPTION
The present invention relates to a set of device6 which, assembled on a standard format electronic card is inserted in a microcomputer and can trigger (or simulate) an alarm in case of
- moving (not allowed) of the device
- attempt to break the box or tear off the card
The system consists of the following devices (Figure 1):
- the card (1) is an electronic card of a
standard format that can fit into most
microcomputers of the type IBM PC or n T <registered trademarks)
or any other compatible.

L'alimentation des circuits électroniques de la carte(1) se
fait par l'intermédiaire du connecteur (4) venant
s'enficher dans le bus de la carte mère ou du fond de panier.La batterie(9) qui permet de rendre l'ensemble autonome a la mise hors tension de l'appareil protégé est notamment alimentée par l'une des tensions continue présente sur le connecteur ou par une liaison directe(91) avec l'alimentation électrique du micro-ordinateur. The power supply of the electronic circuits of the card (1) is
made via the connector (4) coming
plug in the bus of the motherboard or the backplane. The battery (9) which makes it possible to make the assembly autonomous to the power off of the protected device is particularly powered by one of the voltages present present. on the connector or by a direct connection (91) with the power supply of the microcomputer.

Les circuits électroniques de la carte(1) sont pourvus de mémoires vives "rafraichie" permettant de mémoriser un code et quelques instructions de programme. The electronic circuits of the card (1) are provided with "refreshed" random memories for storing a code and some program instructions.

Deux dispositifs de contact de position (-) et (3) sélectionnables par programmation permettent de controler la position horizontale ou verticale de l'appareil < +onctionnement à plat sur le bureau ou en tour).Two positional contactors (-) and (3) selectable by programming make it possible to control the horizontal or vertical position of the device <+ on-the-spot operation on the desk or in a tower).

Ils envoient au déplacement (non controlé) de l'appareil un signal à la centrale électronique(5) qui actionne alors selon la version retenue:
-le haut parleur(16)
-et/ou la mini bombe fumigène (13)
-et/ou un signal codé transmissible sur le réseau
cablé de l'immeuble par l'intermédiaire du connecteur (14)
La durée de fonctionnement de l'alarme est liée à la qualité et a la puissance de la batterie(9) attachée à l'ensemble.They send to the movement (not controlled) of the device a signal to the electronic control unit (5) which then operates according to the selected version:
-the speaker (16)
-and / or the mini smoke bomb (13)
and / or a coded signal transmissible over the network
cable of the building via the connector (14)
The duration of operation of the alarm is related to the quality and power of the battery (9) attached to the assembly.

Le haut parleur(l6) est protégé contre le percement et le choc par un systeme grillage en "chicanes" (17).The loudspeaker (16) is protected against piercing and impact by a "chicane" grid system (17).

En ce qui concerne l'ouverture non autorisée du coffret,un dispositif optoélectrique ,constitué de deux cellules (6) et (7),permet ,à l'aide d'un pinceau lumineux réfléchi sur la pastille (20) collée sur la face interne du coffret de l'appareil, de détecter celle-ci et de déclencher la ou les alarmes comme expliqué precedemment.With regard to the unauthorized opening of the box, an optoelectric device, consisting of two cells (6) and (7), allows, with the aid of a luminous brush reflected on the patch (20) glued on the face internal of the box of the device, detect it and trigger the alarm or alarms as explained above.

L'effraction est également controlée par des contacteurs (1C)) et (il) associés à certaines vis du coffret . ( voir schéma de principe et descriptions correspondantes des fermetures)
La carte elle-même est vissée sur le coffret de base et bloquée avec une vis a tête " en creux permettant éventuellement le remplissage afin d'oter toute prise Un des contacteurs (10) ou (11) pourra etre associé lui même a cette vis le cas échéant
Pour protéger l'ensemble des constituants contre l'arrachage, les coupures, les chocs,... la carte et tous ses éléments sont noyés dans une résine polymérisante ou épo:.:y,dure et opaque .Plusieurs versions du cablage évitent le repérage géographique des éléments sur la carte.Burglary is also controlled by contactors (1C) and (II) associated with certain screws of the cabinet. (see block diagram and corresponding descriptions of closures)
The card itself is screwed on the base box and blocked with a head screw "hollow possibly allowing the filling to remove any plug One of the contactors (10) or (11) can be associated itself to this screw where appropriate
To protect all the components against tearing, cuts, shocks, ... the card and all its elements are embedded in a polymerizing resin or epo:.: Y, hard and opaque.Several versions of the wiring avoid the geographical location of the elements on the map.

Le système de protection est mis en oeuvre à partir de l'écran et du clavier de l'appareil après chargememt de la batterie et d'un programme (fourni sur disquette par exemple
Le programme établira le dialogue avec l'utilisateur qui rentrera son code ou le mot de passe déclenchant la protection.(chiffres ou/et lettres)
L'alarme se déclenche après unnombre déterminé d'essais infructueusr de modificatisn du code
L'autonomie de la batterie est suffisante pour permettre une mise hors service de l'appareil méme dans une période longue (e::::fermeture annuelle des locaux) , tout en assurant une protection efficace de l'ensemble DESCRIPTION DES CONTACTEURS
Deux types de contacteurs sont choisis en fonction des mode de fermeture6 rencontrés sur les micro-ordinateurs ( ils peuvent etre complétés le cas échéant selon les cas de figure).The protection system is implemented from the screen and the keyboard of the device after charging the battery and a program (provided on diskette for example
The program will establish the dialogue with the user who will enter his code or the password triggering the protection. (Numbers or / and letters)
The alarm is triggered after a determined number of unsuccessful code change attempts.
The battery life is sufficient to allow the device to be decommissioned even in a long period of time (e :::: annual closure of the premises), while ensuring effective protection of the assembly. DESCRIPTION OF CONTACTERS
Two types of contactors are chosen according to the mode of closure6 encountered on the microcomputers (they can be supplemented as the case may be).

t ~ Vis bloquée dans un écrou soudé à l'intérieur du coffret
On utilisera dans ce cas un crou en" vinyl"(Figure 3,rep3) (matière plastique) ,superposé à l'écrou d'origine (Figure3, rep5) par collage .Cet écrou a la propriété d'etre traversé par un Cil conducteur continu < Figure 4,rep 3); lors de sa première utilisation, la vis métallique conductrice pénétrant dans 1 'écrou au serrage provoque la rupture du fil en question
Le contact électrique est maintenu entre les deux extrémités conductrices (Figure 4,rep ) et (Figure 4,rep 2) par la pression exercée par la vis elle même
Au desserage il y a rupture du contact, ce changement d'état est transmis à la centrale electronique qui actionne l'alarme .t ~ Screw locked in a welded nut inside the cabinet
We will use in this case a "vinyl" nut (Figure 3, rep3) (plastic), superimposed on the original nut (Figure 3, rep5) by gluing .This nut has the property of being crossed by a Cil continuous conductor <Figure 4, rep 3); when it is first used, the conductive metal screw penetrating the nut on tightening causes the breakage of the wire in question
The electrical contact is maintained between the two conductive ends (Figure 4, rep) and (Figure 4, rep 2) by the pressure exerted by the screw itself
When the contact is broken, this change of state is transmitted to the electronic control unit which activates the alarm.

2 ~ CLIPS avec utilisation d'une vis type "PARKER" (Figure 7)
Pour assurer la prise de contact au niveau de la vis on intercale à l'intérieur du clips , entre celui-ci et le support métallique interne (Figure7,rep 4), la languette (Figure 8,rep t) souple et isolante, pourvue de deux parties métallisées (Figure 8,rep 2 et4),conductrices d'électricité, et raccordables par les cosses (Figure 8,rep 3 et 5) prisee dans la masse de la languette isolante
La matière constituant la languette plastique et ses parties métallisées est percée aisément au serrage par la vis Parer, qui assure elle même le contact électrique entre les deux conducteurs tFigure 8,rep 3 et 5).2 ~ CLIPS with use of a screw type "PARKER" (Figure 7)
To make the contact at the screw is interposed inside the clip, between it and the inner metal support (Figure 7, 4), the tongue (Figure 8, rep t) flexible and insulating, provided of two metallized parts (Figure 8, rep 2 and 4), electrically conductive, and connectable by the lugs (Figure 8, rep 3 and 5) taken from the mass of the insulating tongue
The material constituting the plastic tongue and its metallized parts is easily pierced by the Parer screw, which itself ensures the electrical contact between the two conductors tFigure 8, rep 3 and 5).

Le mode de declenchement de l'alarme est analogue au cas N0 i The triggering mode of the alarm is analogous to the case N0 i

Claims (4)

REVENDICATIONS 1 Dispositif destiné à protéger les micros ordinateurs contre le vol caractérisé en ce qu il comporte un système de détection du déplacement par les contacts de position (Figure 1,rep 2 et 3 ) ou de 1 ouverture du carter de protection par les cellules optoélectriques < Figure 1,rep 6 et 7) ou les contacts des vis de fixation (Figure 1 et 7).1 Device for protecting microcomputers against theft characterized in that it comprises a system for detecting the displacement by the position contacts (Figure 1, 2 and 3) or 1 opening of the protective housing by the optoelectric cells <Figure 1, ref 6 and 7) or the contacts of the fixing screws (Figure 1 and 7). 2- Dispositif selon la revendication 1 caractérisé en ce qu il utilise l'environnement interne déjà existant sur un micro ordinateur: vis, bus, connecteurs standards, écran, clavier.2- Device according to claim 1 characterized in that it uses the existing internal environment on a micro computer: screws, buses, standard connectors, screen, keyboard. 3- Dispositif selon la revendication 1 caractérisé en ce qu il utilise une pastille réfléchissante fiée à 1 interieur du capot du micro-ordinateur et repérée par les cellules < Figure 1, rep 6 et 7) pour en détecter 1 ouverture.3- Device according to claim 1 characterized in that it uses a reflective patch fied inside 1 of the cover of the microcomputer and marked by cells <Figure 1, rep 6 and 7) to detect 1 opening. 4- Dispositif selon revendication 1 caractérisé par la production d'une alarme accoustique durable pouvant etre accompagnée d'un signal codé externe à l'appareil et/ou de l'émission de gaz +umigêne/lacrymogêne destiné à éloigner l'auteur de l'infraction sans porter préjudice au matériel 5- Dispositif selon revendication 1 caractérisé par une activation ou désactivation à partir de l'écran et du clavier de l'appareil en utilisant un programme stocké sur un support magnétique externe1 tel qu'une disquette, et utilisant un code secret alphanumérique stocké dans la mémoire vive de la carte alarme. 4- Device according to claim 1 characterized by the production of a durable acoustic alarm that can be accompanied by a coded signal external to the device and / or the emission of gas + umigen / lacrymogène intended to remove the author of the 5-Device according to claim 1 characterized by an activation or deactivation from the screen and the keyboard of the apparatus using a program stored on an external magnetic medium1 such as a floppy disk, and using an alphanumeric secret code stored in the RAM memory of the alarm card. b- Dispositif selon revendications 1,2 et 3, caractérisé par le chargement d'une batterie (longue durée de vie), a partir deg courants disponibles sur l'appareil pendant ses périodes de fonctionnement normal. b- Device according to claims 1,2 and 3, characterized by charging a battery (long life), from deg current available on the device during its periods of normal operation. 7- Dispositif selon revendication 1 caractérisé par son inviolabilité résidant dans la fourniture monobloc indissociable de la carte et de la géographie aléatoire des composants sur la carte même.7- Device according to claim 1 characterized by its inviolability residing in the inseparable monobloc supply of the map and the random geography of the components on the map itself. 8-Dispositif selon revendications i,2,et 3, caractérisé par l'utilisation d'écrou en vinyl (ou matière similaire), traversé d'un fil conducteur destiné, après serrage de la vis de maintien, a assurer un contact électrique entre les deux extremitês du même fil. Ce contact devant etre interrompue lors du retrait de la vis du dit écrou. Le changement d'état ainsi produit est pris en compte par la centrale électronique de l'ensemble 9- Dispositif selon revendication 1,2, et 3, caractérisé par l'utilisation d'une languette isolante associée à deux lamelles conductrices d'électricité Celles-ci prises dans la masse isolante-de la languette Cette languette associe aux clips de serrage du coffrets produit les mêmes effets que ceux associés a la revendication 8.  8-Device according to claims i, 2 and 3, characterized by the use of a vinyl nut (or similar material), crossed by a conductive wire for, after tightening the holding screw, to ensure electrical contact between both ends of the same thread. This contact must be interrupted when removing the screw of said nut. The change of state thus produced is taken into account by the electronic control unit of the assembly 9- Device according to claim 1, 2 and 3, characterized by the use of an insulating tab associated with two electrically conductive lamellae These tabs associated with the clamping clips of the casing produce the same effects as those associated with claim 8.
FR8601504A 1986-02-04 1986-02-04 Anti-theft system for a microcomputer Pending FR2593950A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8601504A FR2593950A1 (en) 1986-02-04 1986-02-04 Anti-theft system for a microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8601504A FR2593950A1 (en) 1986-02-04 1986-02-04 Anti-theft system for a microcomputer

Publications (1)

Publication Number Publication Date
FR2593950A1 true FR2593950A1 (en) 1987-08-07

Family

ID=9331780

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8601504A Pending FR2593950A1 (en) 1986-02-04 1986-02-04 Anti-theft system for a microcomputer

Country Status (1)

Country Link
FR (1) FR2593950A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317304A (en) * 1991-01-17 1994-05-31 Sonicpro International, Inc. Programmable microprocessor based motion-sensitive alarm
WO1996008800A1 (en) * 1994-09-14 1996-03-21 Kuehling Bernd Monitoring device for computers with connected peripherals, such as monitors, printers or the like
WO1996029638A1 (en) * 1995-03-17 1996-09-26 On Guard International Ab Alarm system for computer equipment connected in a network
WO1996035195A1 (en) * 1995-04-29 1996-11-07 Deritend Electro-Mechanical Services Ltd. Security device for a computer
EP1273998A1 (en) * 2001-07-03 2003-01-08 Hewlett-Packard Company, A Delaware Corporation Tamper-evident and/or tamper-resistant electronic components
US7065656B2 (en) 2001-07-03 2006-06-20 Hewlett-Packard Development Company, L.P. Tamper-evident/tamper-resistant electronic components
ES2264877A1 (en) * 2005-02-21 2007-01-16 Universal De Desarrollos Electronicos, S.A. Modular device for data protection, includes control board that has microcontroller, memories and electronic switches connected to battery for power supply

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418504A1 (en) * 1978-02-24 1979-09-21 Alsthom Cgee Door or window break-in detector - uses fibre optic encased in panel and having ends terminated at light emitter-receiver
DE3023427A1 (en) * 1979-06-28 1981-01-08 Gretag Ag MOBILE DATA KEEPER
US4284983A (en) * 1980-02-19 1981-08-18 Lent Roger S Appliance anti-theft and protection circuitry
US4385288A (en) * 1981-05-04 1983-05-24 Fifth Dimension, Inc. Motion responsive alarm system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418504A1 (en) * 1978-02-24 1979-09-21 Alsthom Cgee Door or window break-in detector - uses fibre optic encased in panel and having ends terminated at light emitter-receiver
DE3023427A1 (en) * 1979-06-28 1981-01-08 Gretag Ag MOBILE DATA KEEPER
US4284983A (en) * 1980-02-19 1981-08-18 Lent Roger S Appliance anti-theft and protection circuitry
US4385288A (en) * 1981-05-04 1983-05-24 Fifth Dimension, Inc. Motion responsive alarm system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317304A (en) * 1991-01-17 1994-05-31 Sonicpro International, Inc. Programmable microprocessor based motion-sensitive alarm
WO1996008800A1 (en) * 1994-09-14 1996-03-21 Kuehling Bernd Monitoring device for computers with connected peripherals, such as monitors, printers or the like
US5821868A (en) * 1994-09-14 1998-10-13 Kuehling; Bernd Monitoring device for computers with connected peripherals such as monitors, printers or the like
WO1996029638A1 (en) * 1995-03-17 1996-09-26 On Guard International Ab Alarm system for computer equipment connected in a network
US5926091A (en) * 1995-03-17 1999-07-20 Tp Control Ab Alarm system for computer equipment connected in a network
WO1996035195A1 (en) * 1995-04-29 1996-11-07 Deritend Electro-Mechanical Services Ltd. Security device for a computer
EP1273998A1 (en) * 2001-07-03 2003-01-08 Hewlett-Packard Company, A Delaware Corporation Tamper-evident and/or tamper-resistant electronic components
US7065656B2 (en) 2001-07-03 2006-06-20 Hewlett-Packard Development Company, L.P. Tamper-evident/tamper-resistant electronic components
US7296299B2 (en) 2001-07-03 2007-11-13 Hewlett-Packard Development Company, L.P. Tamper-evident and/or tamper-resistant electronic components
ES2264877A1 (en) * 2005-02-21 2007-01-16 Universal De Desarrollos Electronicos, S.A. Modular device for data protection, includes control board that has microcontroller, memories and electronic switches connected to battery for power supply

Similar Documents

Publication Publication Date Title
US4663611A (en) Alarm lock
US7659817B2 (en) Security device with perimeter alarm
US4319228A (en) Portable intrusion alarm
US6133842A (en) Alarm system for portable container
US5525965A (en) Appliance theft prevention alarm
US5574429A (en) Self-contained, programmable non-position-sensitive vibration detecting alarm system
JP2006506699A (en) Warning device
EP2715691A1 (en) Methods and devices for retail theft prevention
CA2419556A1 (en) Anti-theft electrical power cord
FR2593950A1 (en) Anti-theft system for a microcomputer
US5754108A (en) Universal alarm system
TW201131516A (en) Electronic device with anti-theft function and mercury on-off device thereof
EP0210889B1 (en) High-security modular monitoring and alarm centre and operating method therefor
FR2868459A1 (en) Panel/drawer locking device for showcase door, has electronic module to trigger time interval and to signal imminence of triggering of alarm device when finger`s presence is not detected so that user closes panel or reads electronic medium
US3914756A (en) Portable alarm actuated by attempted theft
US8902065B2 (en) Security alarm system device and component for securing outdoor appliances
GB2300743A (en) Security device for a computer incorporating motion and tampering sensors
EP0070224B1 (en) Surveillance and alarm method and device
FR2595744A1 (en) Key and corresponding electroacoustic lock
FR2587664A1 (en) Access surveillance and anti-theft alarm device for sea or land vehicles. Claims of the device and its use
EP0065535B1 (en) Surveyance apparatus
FR2769738A1 (en) Intruder detection system
CN216388263U (en) Storage battery anti-theft alarm device
GB2329273A (en) Computer theft alarm mounted on an expansion card
KR950010495Y1 (en) Alarm for thief