DE3338608C1

DE3338608C1 - Circuit arrangement for operating programmable locking devices using key cards having permanently allotted key code information

Info

Publication number: DE3338608C1
Application number: DE19833338608
Authority: DE
Inventors: Klaus Dr. 8022 Grünwald Meister; Pierre Dipl.-Ing. 8012 Ottobrunn Meyers
Original assignee: Individual
Current assignee: Individual
Priority date: 1982-08-20
Filing date: 1983-10-24
Publication date: 1985-01-24

Abstract

An electronic closure device is proposed in which a coded key card having a metal carrier is used for opening and locking and which has a device for easily entering a code provided by the key card, primarily for use as a device for closing doors which are to be operated for a long period by the same users. A key card made of a carrier material (10) contains on both sides a code which is applied at the manufacturing works and consists of perforations, arranged in matrix fashion, in an insulating layer (11) in which conductive areas (13) are printed which, as a result of an insulating island (12) also printed on the carrier, do not make electrical contact with the carrier or make electrical contact with the carrier as a result of omitting said insulating island (12). The electronic system of the closure device has a device (2) on the inside of the door which can be used to set the closure device to the "reprogramming" state, after which these codes can be written into a memory (1) by simply inserting the key card. <IMAGE>

Description

Der Erfindung liegt die Aufgabe zugrunde, eine derartige Anordnung so zu vereinfachen und so auszubilden, daß sie für Wohneinheiten und Wohnanlagen, Geschäftshäuser und andere von weitgehend gleichbleibenden Personen oder Personengruppen betriebene Sicherheitsanlagen geeignet sind. The invention is based on the object of such arrangement to be simplified and trained in such a way that they can be used for residential units and residential complexes, Commercial buildings and others from largely the same people or groups of people operated safety systems are suitable.

Diese Aufgabe wird durch die im Anspruch 1 gekennzeichneten Maßnahmen gelöst. This task is achieved by the measures characterized in claim 1 solved.

Weitere Einzelheiten und Weiterbildungen bzw. Ausgestaltungen der Schlüsselkarte sind in den Unteransprüchen gekennzeichnet. Further details and developments or refinements of the Key cards are characterized in the subclaims.

Die Kodeelemente auf der Schlüsselkarte können durch einfaches Bedrucken einer Metallplatte oder ähnlichem mit einer Isolierschicht hergestellt werden. Um jedoch die Kodierung einem unberechtigten Betrachter zu verschleiern, kann ein eine nichtkodierte Matrix vortäuschender Aufdruck aus elektrisch leitendem Material vorgesehen sein, der nur an den Kodestellen, die z. B. The code elements on the key card can simply be printed on a metal plate or the like with an insulating layer. Around however, obscuring the coding from an unauthorized viewer can be a Non-coded matrix mock print made of electrically conductive material is provided be that only at the code points that z. B.

einen »logisch 1 «-Zustand darstellen bis zur Metallplatte elektrisch leitend ist Durch zweiseitiges Bedrucken ergibt sich eine besonders kleine Schlüsselkarte in der Breite und/oder in der Länge während eine der Potentialzuführung dienende einzige weitere Kodestelle, die insbesondere in unauffälliger Weise als nichtbedruckter Randbereich der Metallplatte ausgebildet ist, eine besonders einfache Kodierung ermöglicht.represent a "logical 1" state up to the metal plate electrically is conductive Printing on both sides results in a particularly small key card in width and / or in length while one is used to supply potential the only other code digit, in particular in an inconspicuous manner as unprinted Edge area of the metal plate is formed, a particularly simple coding enables.

Die Erfindung wird nun anhand der in den Zeichnungen dargestellten Ausführungsbeispiele näher erläutert Es zeigt F i g. 1 das Blockschaltbild der gegenüber der Anordnung nach dem Hauptpatent vereinfachten Auswerteelektronik für die Verschlußeinrichtung einer Wohneinheit und F i g. 2a und 2b eine bevorzugte Ausführungsform von Schlüsselkarten. The invention will now be illustrated with reference to the drawings Exemplary embodiments explained in more detail It shows FIG. 1 the block diagram of the opposite the arrangement according to the main patent simplified evaluation electronics for the locking device a residential unit and F i g. 2a and 2b a preferred embodiment of key cards.

Bei der in F i g. 1 dargestellten Anordnung findet ein Halbleiterspeicher 1 mit einer Organisation von 16 x 4 bit Verwendung. Durch einen Schalter 2 kann die Schreib-/Leseleitung des Speichers nach Masse geschaltet werden, wodurch der Speicher in den Zustand »Neueinprogrammieren« gebracht wird. Der Schalter 2 ist in Form eines zylindergesicherten Schalters ausgeführt und befindet sich an der Türinnenseite. In the case of the in FIG. The arrangement shown in FIG. 1 finds a semiconductor memory 1 with an organization of 16 x 4 bit usage. A switch 2 can the read / write line of the memory are switched to ground, whereby the The memory is brought into the state »reprogramming«. The switch 2 is in the form of a cylinder-secured switch and is located on the Inside door.

Der Signalerzeuger, Lesegerät 3 mit Schlüsselkarte 4, der die in den Speicher einzuprogrammierenden Signale erzeugt, befindet sich dagegen an der Türaußenseite. The signal generator, reader 3 with key card 4, which stores the in generates signals to be programmed into the memory, is on the other hand Outside door.

Demzufolge kann ein neuer Öffnungskode nur bei geöffneter Tür in die Verschlußeinrichtung einprogrammiert werden und darüber hinaus nur von einer Person, die über den Schlüssel zum Betätigen des Schalters 2 verfügt.As a result, a new opening code can only be entered when the door is open Locking device can be programmed and, moreover, only by one person, who has the key to operate switch 2.

Der Speicher 1 stellt in den Speicheradressen orbis 7 eine Ebene dar, in den Speicheradressen 8 bis 15 eine zweite Ebene. The memory 1 represents a level in the memory addresses orbis 7 represents, in the memory addresses 8 to 15, a second level.

Die höchstwertige Adreßleitung 6 des Speichers 1 ist zum Lesegerät 3 verdrahtet Wird nun durch Einführen einer Schlüsselkarte 4 in das Lesegerät 3 diese Adreßleitung 6 nach Masse geschaltet, so gelangen die gleichzeitig durch die Schlüsselkarte erzeugten Kodesignale in eine bestimmte Ebene des Speichers. Werden jedoch die Kodesignale durch ein vom Schlüssel verschiedenes Eingabeelement erzeugt, das nicht an die höchstwertige Adreßleitung 6 Anschluß findet, so bleibt die Adreßleitung 6 aufgrund eines nicht dargestellten Pull-up-Widerstandes auf »high«. Die erzeugten Kodesignale gelangen demzufolge in die zweite Speicherebene. The most significant address line 6 of the memory 1 is to the reader 3 Is now wired by inserting a key card 4 into the reader 3 this address line 6 is connected to ground, so get through the at the same time Key card generated code signals in a certain level of memory. Will however, the code signals are generated by an input element other than the key, that does not find connection to the most significant address line 6, the address line remains 6 to "high" due to a pull-up resistor (not shown). The generated Code signals are therefore transferred to the second memory level.

Diese Vorgänge der Ebenenzuordnung für eine Schlüsselkarte und für andere an dieselben Kodeleitungen angeschlossene Eingabeelemente geschehen so- wohl bei der Neueinprogrammierung wie auch jedes Mal bei einer Kodeeingabe zum Zwecke der Betätigung der Verschlußeinrichtung. These operations of level mapping for a key card and for other input elements connected to the same code lines occur well when reprogramming as well as every time when entering a code for the purpose the actuation of the locking device.

Die weiterhin in F i g. 1 dargestellten Elemente Komparator 7, Bewertung 8 und Magnet 9 führen in bekannter Weise einen Vergleich zwischen dem im Speicher einprogrammierten Kode und dem über die Schlüsselkarte erzeugten Kode durch, wobei die Bewertungseinrichtung 8 bei Gleichheit beider Kodes den Magneten 9 bestromt und dadurch die Verschlußeinrichtung zum Verriegeln bzw. Öffnen freigibt. The further in F i g. 1 illustrated elements comparator 7, evaluation 8 and magnet 9 make a comparison between that in the memory in a known manner programmed code and the code generated by the key card, whereby the evaluation device 8 energizes the magnet 9 if both codes are identical and thereby releases the locking device for locking or opening.

In den F i g. 2a und 2b ist eine Schlüsselkarte in einer bevorzugten Ausführungsform als zweiseitig kodierte Schlüsselkarte dargestellt. Die Schlüsselkarte besteht aus einem metallischen Träger 10 ausreichender Dicke, um eine sehr große Biegesteifigkeit zu erreichen. In the F i g. 2a and 2b is a key card in a preferred one Embodiment shown as a double-sided coded key card. The key card consists of a metallic support 10 of sufficient thickness to a very large To achieve flexural rigidity.

Die Schlüsselkarte ist beidseitig mit einer an allen Kodeelementstellen Durchbrüche aufweisenden elektrisch isolierenden Schicht 11 bedruckt. Die Kodeelementstellen, die z. B. eine »logisch 0« darstellen, werden vornehmlich vor der Aufbringung der Schicht 11 durch Aufdrucken isolierender Bereiche 12 erzeugt, wobei die Abmessungen dieser Bereiche 12 etwas größer sind als die Durchbrüche der Abdeckschicht 11. The key card is on both sides with one in all code element positions Electrically insulating layer 11 having breakthroughs is printed. The code element places, the z. B. represent a "logic 0", are mainly before the application of the Layer 11 produced by printing insulating areas 12, the dimensions these areas 12 are somewhat larger than the openings in the cover layer 11.

Für die Kodeelementstellen, die z. B. eine »logisch 1« darstellen, entfällt der Druck der isolierenden Bereiche 12, so daß an diesen Stellen die Durchbrüche der Abdeckschicht 11 einen direkten Zugang zum Träger 10 zulassen. For the code element positions that z. B. represent a "logical 1", there is no pressure of the insulating areas 12, so that the breakthroughs at these points allow the cover layer 11 direct access to the carrier 10.

Um dem - unberechtigten - Betrachter einer Schlüsselkarte den effektiven elektrischen Kode dieser Schlüssselkarte zu verschleiern, werden nachfolgend sämtliche Kodeelementstellen mit elektrisch leitfähigen Bereichen 13 bedruckt, deren Abmessungen derart gestaltet sind, daß die Durchbrüche gerade ausgefüllt und aufgefüllt werden. To the - unauthorized - viewer of a key card the effective to disguise the electrical code of this key card, all Code element points printed with electrically conductive areas 13, their dimensions are designed so that the openings are just filled and filled.

Die isolierende Abdeckschicht 11 wird flächenmäßig nur so weit aufgebracht, daß beidseitig ein freier Randstreifen 14 erhalten bleibt. Diese Randstreifen werden zum einen benutzt zur Potentialzuführung zwecks Abfrage der elektrischen Zustände der Kodeelementstellen mit Hilfe einfacher Kontaktfinger und zum anderen zum Anschalten der Leitung 6 der F i g. 1 an das zugeführte Potential und damit zur Kennzeichnung der Signale, die an den Kodeelementstellen abgenommen werden, als von einer Schlüsselkarte herrührend. The insulating cover layer 11 is applied in terms of area only to the extent that that a free edge strip 14 is retained on both sides. These margins will be on the one hand used to supply potential for the purpose of querying the electrical states the code element places with the help of simple contact fingers and on the other hand for switching on the line 6 of FIG. 1 to the supplied potential and thus for identification of the signals picked up at the code element locations than from a key card originating.

Die Kodeelementstellen sind matrixförmig angeordnet, wobei auf jeder der beiden Seiten der Schlüsselkarte vornehmlich zwei Spalten 15 und sechs Zeilen 16 zur Anwendung kommen. Damit wird eine Kombinationsvielfalt von 11 Mio. Möglichkeiten erreicht, so daß praktisch am gleichen Ort nie zwei Schlüssel mit gleicher Kodierung vorkommen werden. The code element locations are arranged in a matrix, with each the two sides of the key card mainly two columns 15 and six lines 16 apply. This creates a variety of combinations of 11 million possibilities achieved, so that practically never two keys with the same coding in the same place will occur.

Die Schlüsselkarten werden in Losen einer vorgegebenen Stückzahl mit jeweils gleicher Kodierung der Schlüsselkarten eines Loses hergestellt und sind durch gleichfarbige Griffleisten sowie eine geeignet gewählte Verpackung gegen Vertauschen geschützt - Leerseite - The key cards are supplied in lots of a specified number each with the same coding of the key cards of a lot and are thanks to handle strips of the same color and appropriately selected packaging to prevent confusion protected - blank page -

Claims

Claims: 1. Circuit arrangement for operating programmable Locking devices by means of key cards of a given type by comparison the fixed key code information from the key card with the in the lock code information stored in each case in security systems with preferably at least two operators with equal rights, in which each key card a key code information that is arranged at a predetermined location and permanently assigned to it and the locking device has program switching means that take over the key code information of the entered key card as lock code information the locking device, and in which only authorized persons accessible switch device the locking device for taking over the key code information prepared according to patent no. 3231063, characterized in that the switch device is designed as a switch arranged inside the security system, the only activates the program switching means in the switched-on state in such a way that that the locking device the key code information of an inserted key card as lock code information takes over 2. key card according to claim 1, characterized characterized in that the key card has a matrix-like shape on at least one side Encoding that is designed so that at least each in the same Row (row or column) provided code elements electrically conductive with each other are connected.

3. key card according to claim 2, characterized in that the Code elements are sections on a continuous electrically conductive plate, by one, at the code element places -the example. represent a "logical" state - The electrically non-conductive layer with breakthroughs is covered 4. Key card according to claim 2 or 3, characterized in that the continuous, electrical conductive plate with one having openings at all possible code element locations electrically non-conductive layer is covered and that the code element locations, which should, for example, represent a "logically O" state, before application or after Application of the electrically non-conductive layer having breakthroughs another print is electrically isolated from the conductive plate and that the code element places z. B. should represent a "logical 1" state, not be isolated.

5. Key card according to claim 3 and 4, characterized in that that both those insulated from the electrically conductive plate and those not isolated code element places with - all elements as similar code element places pretending - electrically conductive surface elements are covered - 6. key card according to one of claims 2 to 5, characterized in that the key card from a continuous plate with a code on each side consists of electrically conductive material 7 key card according to one of the claims 3 to 6, characterized in that the key card is arranged next to the Code element digits, each representing two-valued electrical information, at least one further element in the form of a potential supply element uncovered strip - in particular an edge portion - and that the key card has at least one further element in the form of an uncovered one Strip - in particular of the second edge section - has which of the marking serves as a key and contains the information that the signals generated by a Keys come from and not from any other possible input element.

The subject of patent no. 32 31 063 is a circuit arrangement for operating programmable locking devices using key cards at least one predetermined type by comparing the information on the key card predetermined key code information with the one in the locking device stored lock code information in security systems with preferably at least two operators with equal rights and / or at least two unequal operators Operator groups of the same locking device, especially in hotel complexes several guests and / or staff groups entering the same room in which each key card in addition to the one arranged in a predetermined location and her permanently assigned key-code information at a likewise predetermined location has further code information and the locking device only when it is recognized such additional code information has program switching means that take effect, the transfer of the key code information from the key card entered cause as lock code information of the locking device and in which one switch device accessible only to authorized persons the locking device prepared to accept the key code information and the information on the key card provided further code information the takeover of the key code information caused and the preparation of the locking device cancels such a Arrangement is intended for operators, which only partially remain almost unchanged, for example for the staff of a guest house, while other operators - for example the guests - change very often, so that there is a requirement with every change of person to only be able to program the locking device. Only the previous ones are allowed to do this Locking devices released for operators (guests) can be reprogrammed while No high demands are made on the key cards.

However, such a requirement does not apply to residents of the same Housing unit such as individuals and / or family members. A reprogramming is only rarely required here, for example if a key is lost or if Change of tenant. As a result, the same keys remain for a very long time in this application in use, which is why the strength, durability and handiness of the key cards very high demands have to be made.