DE4220911A1 - Mechanical code protection for vehicle central locking system - has key with coded pattern on shank to preset array of security switches - Google Patents

Mechanical code protection for vehicle central locking system - has key with coded pattern on shank to preset array of security switches

Info

Publication number
DE4220911A1
DE4220911A1 DE19924220911 DE4220911A DE4220911A1 DE 4220911 A1 DE4220911 A1 DE 4220911A1 DE 19924220911 DE19924220911 DE 19924220911 DE 4220911 A DE4220911 A DE 4220911A DE 4220911 A1 DE4220911 A1 DE 4220911A1
Authority
DE
Germany
Prior art keywords
switches
key
shank
central locking
locking system
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Withdrawn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
DE19924220911
Other languages
German (de)
Inventor
Akram Memar Tehrani
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.)
Tehrani Akram Memar 50170 Kerpen 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 DE19924220911 priority Critical patent/DE4220911A1/en
Publication of DE4220911A1 publication Critical patent/DE4220911A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
    • E05B49/002Keys with mechanical characteristics, e.g. notches, perforations, opaque marks
    • E05B49/004Keys with mechanical characteristics, e.g. notches, perforations, opaque marks actuating mechanical switches

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  • Lock And Its Accessories (AREA)

Abstract

The central locking system uses a special key with a pattern on the shank. This operates on an array of spring loaded switches, to open and close certain connections in a logic circuit. This inactivates the coding and operates the various locking servo motors in the correct direction. The mechanical coding is simple and has a large number of variations. The array of switches operate on a transistorised security circuit with IC logic. The system sets the alarm and is activated by operating any other switches e.g. opening the doors. ADVANTAGE - Simple security system, difficult to bypass.

Description

Die Erfindung betrifft ein mechanisches codegeschütztes Schloß mit Alarmanlage.The invention relates to a mechanical code-protected lock with alarm system.

Das Schloß besteht aus beliebigen zylinderförmigen Schaltern als Öffner (Fig. 1a) und Schließer (Fig. 1b), die in Reihe (Fig. 2 T-A) und Parallel (Fig. 2 T-B) geschaltet sind, und einem Kreuzschalter (Fig. 2 T-C), der veranlaßt, daß der Motor links oder rechts drehen soll und dadurch die Verriegelung oder Entriegelung der Türe verursacht.The lock consists of any cylindrical switches as NC contacts ( Fig. 1a) and NO contacts ( Fig. 1b), which are connected in series ( Fig. 2 TA) and parallel ( Fig. 2 TB), and a cross switch ( Fig. 2 TC ), which causes the motor to turn left or right, causing the door to lock or unlock.

Die Funktion der zylinderförmigen Schalter:
durch Druck am Kopf von Teil 1 (Fig. 1a und 1b) wird Teil 1 und 2 untergeschoben. Dadurch wird entweder Teil 4 zwischen Teil 5 und 6 geschoben und Verbindung hergestellt oder Verbindung aufgelöst und entsprechend wird die Feder (Teil 3 Fig. 1) gespannt. Die gespannte Feder sorgt dafür, daß nach Aufhebung des Drucks alle Teile in den ursprünglichen Zustand zurückkehren. Das Einordnen der zylinderförmigen Schalter in Reihe und Parallel (T-A und T-B Fig. 2) verursacht eine bestimmte Codierung. Wenn die Schalter in offener Position 0 und in geschlossener Position 1 bezeichnet werden, muß die Codierung des Schlosses wie Tabelle in Fig. 2a aussehen. Nach Einstecken des richtigen Schlüssels sollen alle in Reihe geschalteten Schalter (S1, . . . . . S4) in geschlossener Position und in Parallel geschalteten Schaltern (S5, . . . . . S13) in offene Position gebracht werden. Die Tabelle in Fig. 2a zeigt die richtige Decodierung des Schlosses, d. h. die Position der Schalter S1, S3, S6, S8, S9, S10, S13 muß durch Druck geändert werden. Dieser Vorgang sorgt dafür, daß die Transistor-Basis T1 (Fig. 2) Masseanschluß bekommt und umgekehrt die Transistor-Basis T2 (Fig. 2) von der Masse getrennt wird, dadurch sperrt T1 (Fig. 2) und macht T2 (Fig. 2) leitend. Aufgrund dieses Vorgangs werden die Transistoren T3 und T4 (Fig. 2) leitend und Relais 1 (Fig. 2) wird angezogen. Dann hat Kreuzschalter T-C (Fig. 2) Power und kann durch Schalten in Position 1 oder 2 den Verriegelungsmotor in die eine oder andere Richtung bewegen, dadurch wird die Tür verriegelt oder entriegelt. Solange der richtige Code durch den Schlüssel nicht erreicht ist, gibt es in Punkt C (Fig. 2) keine Spannung und beim Umschalten des Kreuzschalters (T-C Fig. 2) passiert gar nichts.
The function of the cylindrical switch:
by pressing on the head of part 1 ( Fig. 1a and 1b) parts 1 and 2 are pushed under. As a result, either part 4 is pushed between parts 5 and 6 and connection is established or connection is broken and the spring (part 3, FIG. 1) is tensioned accordingly. The tensioned spring ensures that all parts return to their original state after the pressure has been released. Placing the cylindrical switches in series and in parallel (TA and TB Fig. 2) causes a certain coding. If the switches are designated in the open position 0 and in the closed position 1, the coding of the lock must look like the table in FIG. 2a. After inserting the correct key, all switches connected in series (S1,.... S4) should be moved to the closed position and switches connected in parallel (S5,..... S13) to the open position. The table in Fig. 2a shows the correct decoding of the lock, ie the position of the switches S1, S3, S6, S8, S9, S10, S13 must be changed by pressing. This process ensures that the transistor base T1 ( FIG. 2) is grounded and conversely the transistor base T2 ( FIG. 2) is separated from the ground, thereby blocking T1 ( FIG. 2) and making T2 ( FIG. 2) conductive. As a result of this process, the transistors T3 and T4 ( FIG. 2) become conductive and relay 1 ( FIG. 2) is attracted. Then cross switch TC ( Fig. 2) has power and can move the locking motor in one or the other direction by switching to position 1 or 2, this locks or unlocks the door. As long as the correct code is not reached by the key, there is no voltage in point C ( Fig. 2) and nothing happens when the cross switch (TC Fig. 2) is switched.

Um diesen Code zu entschlüsseln, muß man 7 aus 13 Schaltern drücken. Hier gibt es 213 = 8192 mögliche Kombinationen und Wahrscheinlichkeit liegt bei 1 zu 8192. Durch Erhöhen der Schalteranzahl kann man die Wahrscheinlichkeit bedeutend heben. To decode this code, you have to press 7 out of 13 switches. There are 2 13 = 8192 possible combinations and the probability is 1 in 8192. By increasing the number of switches you can increase the probability significantly.

Diese Art Verriegelung ist gut geeignet für eine Centralverriegelung im Auto zusammen mit dem Zündschloß.This type of locking is well suited for central locking in the car together with the ignition lock.

Das kann man erzielen, wenn man mehrere Schloßeinrichtungen parallel an das elektronische Teil anschließt (Fig. 4). Dadurch kann man mehrere Motoren zur Verriegelung oder Entriegelung der Türen in Betrieb nehmen.This can be achieved if several lock devices are connected in parallel to the electronic part ( Fig. 4). This means that several motors can be put into operation to lock or unlock the doors.

Dieses System läßt sich einfach mit der Alarmanlage nachrüsten. Beim Verriegeln der Türen bekommt der Set-Eingang der IC2a eine positive Spannung und bringt Q- Ausgang auf High und Q-Ausgang auf Low und entsprechend werden der Eingänge von IC2b K-Eingang auf High und J-Eingang auf Low gebracht Jetzt ist die Alarm­ anlage in Bereitschaft. Sobald die Tür geöffnet wird, wird der Türschalter S18 geschlossen. Das hat die Folge, daß der Transistor T6 sperrt und positive Flanke am Clock-Eingang von IC2b setzt Q-Ausgang auf High und macht Transistor T7 leitend und Relais 2 zieht an und dadurch wird Alarm ausgelöst. Durch das Entriegeln der Türe wird die Alarmanlage ausgeschaltet. Mit dem gleichen Prinzip kann man das Radio an die Alarmanlage anschließen, d. h. durch das Herausziehen des Schlüssels wird Alarmbereitschaft beim Radio ausgelöst.This system can be easily retrofitted with the alarm system. When the doors are locked, the set input of the IC2a gets a positive voltage and brings Q output to high and Q output to low and accordingly the inputs from IC2b are brought K input to high and J input to low. Now the alarm is plant on standby. As soon as the door is opened, the door switch S18 is closed. This has the consequence that transistor T6 blocks and positive edge at the clock input of IC2b sets Q output to high and makes transistor T7 conductive and relay 2 picks up and this triggers an alarm. The alarm system is switched off by unlocking the door. The same principle can be used to connect the radio to the alarm system, ie when the key is removed, the radio is ready for alarm.

Claims (3)

1. Anordnung zum Betätigen von bestimmten zylinderförmigen Schalter (als Öffner Fig. 1a und als Schließer Fig. 1b) und Auswertung dieses Codes, dadurch gekennzeichnet, daß das Einrichten der Schalter in Reihe (T-A, Fig. 2) und in parallel (T-B, Fig. 2) eine bestimmte Codierung (wie Tabelle in Fig. 2a) verursacht, die durch Einstecken der Schlüssel decodiert werden soll (Tabelle in Fig. 2), welcher die Transistoren T1 sperrt und T2 leitend macht und dadurch beide Transistoren T3 und T4 leitend macht und den Anzug des Relais 1 veranlaßt, dadurch kann der Verriegelungsmotor gesteuert werden.1. Arrangement for actuating certain cylindrical switches (as a breaker Fig. 1a and as a closer Fig. 1b) and evaluation of this code, characterized in that the setting up of the switches in series (TA, Fig. 2) and in parallel (TB, Fig. 2) caused a certain coding (like table in Fig. 2a), which is to be decoded by inserting the key (table in Fig. 2), which blocks the transistors T1 and makes T2 conductive and thereby both transistors T3 and T4 conductive makes and pulls the relay 1 , thereby the locking motor can be controlled. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß durch parallel Schalten mehrere Schloßeinrichtungen an dem elektronischen Teil (Fig. 3) ein Central-Verriegelungssystem zusammen mit dem Zündschloß erzielt werden kann.2. Arrangement according to claim 1, characterized in that a central locking system can be achieved together with the ignition lock by switching several locking devices in parallel on the electronic part ( Fig. 3). 3. Anordnung nach Anspruch 1 oder 2 gekennzeichnet, daß die Alarmanlage mit Verriegelung der Tür durch IC2a und IC2b (Fig. 4) inganggesetzt wird, die bei Zugriff unbefugter Personen durch Schließen der Schalter S18 (Fig. 4) einen Alarm auslöst, genau so beim Herausziehen des Schlüssels wird Alarmbereitschaft beim Radio ausgelöst.3. Arrangement according to claim 1 or 2, characterized in that the alarm system with locking the door by IC2a and IC2b ( Fig. 4) is started, which triggers an alarm when unauthorized persons by closing the switch S18 ( Fig. 4), just like that when the key is removed, the radio is on standby.
DE19924220911 1992-06-25 1992-06-25 Mechanical code protection for vehicle central locking system - has key with coded pattern on shank to preset array of security switches Withdrawn DE4220911A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924220911 DE4220911A1 (en) 1992-06-25 1992-06-25 Mechanical code protection for vehicle central locking system - has key with coded pattern on shank to preset array of security switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924220911 DE4220911A1 (en) 1992-06-25 1992-06-25 Mechanical code protection for vehicle central locking system - has key with coded pattern on shank to preset array of security switches

Publications (1)

Publication Number Publication Date
DE4220911A1 true DE4220911A1 (en) 1994-01-05

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DE19924220911 Withdrawn DE4220911A1 (en) 1992-06-25 1992-06-25 Mechanical code protection for vehicle central locking system - has key with coded pattern on shank to preset array of security switches

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2647917A1 (en) * 1975-10-24 1977-04-28 London Transport Executive SAFETY LOCK
DE2807080A1 (en) * 1978-02-18 1979-08-23 Merk Gmbh Telefonbau Fried Light coded key operated electromagnetic lock - has key light conductors linking shaft side LEDs and phototransistors
DE2327363B2 (en) * 1972-05-30 1980-02-28 Managing Venturers, Philadelphia, Pa. (V.St.A.) Key-operated, electronically controlled locking device
DE2929772A1 (en) * 1979-07-23 1981-02-12 Kirsten Elektrotech Key operated vehicle theft-prevention circuit - has resistive key in bridge circuit connected to discriminator in interrogation circuit
DE3103028A1 (en) * 1981-01-30 1982-08-12 Hülsbeck & Fürst GmbH & Co KG, 5620 Velbert Locking device for a lock, especially a vehicle-door lock having two different keys
FR2506374A1 (en) * 1981-05-21 1982-11-26 Kiekert Gmbh Co Kg CLOSURE DEVICE WITH ANTI-THEFT PROTECTION FOR AUTOMOTIVE VEHICLE DOORS
EP0153263B1 (en) * 1984-02-20 1988-12-07 Milenko Radosavljevic Lock with optoelectronic coders
DE3813262A1 (en) * 1988-04-20 1989-11-09 Mohammadreza Karbasdeh Khalili Electronic lock device with an insertable key for operating closing devices and the like and for switching electrical devices on and off
DE3938995C1 (en) * 1989-11-22 1991-01-03 Klaus 2857 Langen De Kernchen Card-operated security system - has coded strips applied to both sides of card and no more than one aligned lamp sensor pair
DE3936656A1 (en) * 1989-11-03 1991-05-08 Schreiber Hans Release device for electrically-operated lock - uses key card with iron inserts cooperating with permanent magnets in current circuit
DE9102114U1 (en) * 1991-02-22 1991-05-23 Golden, Martin, 8000 München Arrangement for triggering an alarm in the event of attempted break-ins

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2327363B2 (en) * 1972-05-30 1980-02-28 Managing Venturers, Philadelphia, Pa. (V.St.A.) Key-operated, electronically controlled locking device
DE2647917A1 (en) * 1975-10-24 1977-04-28 London Transport Executive SAFETY LOCK
DE2807080A1 (en) * 1978-02-18 1979-08-23 Merk Gmbh Telefonbau Fried Light coded key operated electromagnetic lock - has key light conductors linking shaft side LEDs and phototransistors
DE2929772A1 (en) * 1979-07-23 1981-02-12 Kirsten Elektrotech Key operated vehicle theft-prevention circuit - has resistive key in bridge circuit connected to discriminator in interrogation circuit
DE3103028A1 (en) * 1981-01-30 1982-08-12 Hülsbeck & Fürst GmbH & Co KG, 5620 Velbert Locking device for a lock, especially a vehicle-door lock having two different keys
FR2506374A1 (en) * 1981-05-21 1982-11-26 Kiekert Gmbh Co Kg CLOSURE DEVICE WITH ANTI-THEFT PROTECTION FOR AUTOMOTIVE VEHICLE DOORS
EP0153263B1 (en) * 1984-02-20 1988-12-07 Milenko Radosavljevic Lock with optoelectronic coders
DE3813262A1 (en) * 1988-04-20 1989-11-09 Mohammadreza Karbasdeh Khalili Electronic lock device with an insertable key for operating closing devices and the like and for switching electrical devices on and off
DE3936656A1 (en) * 1989-11-03 1991-05-08 Schreiber Hans Release device for electrically-operated lock - uses key card with iron inserts cooperating with permanent magnets in current circuit
DE3938995C1 (en) * 1989-11-22 1991-01-03 Klaus 2857 Langen De Kernchen Card-operated security system - has coded strips applied to both sides of card and no more than one aligned lamp sensor pair
DE9102114U1 (en) * 1991-02-22 1991-05-23 Golden, Martin, 8000 München Arrangement for triggering an alarm in the event of attempted break-ins

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Baubeschlag-Magazin, 8, 1983, S.152 *

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Legal Events

Date Code Title Description
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
8127 New person/name/address of the applicant

Owner name: TEHRANI, AKRAM MEMAR, 50170 KERPEN, DE

8105 Search report available
8139 Disposal/non-payment of the annual fee