EP0047487A1 - Schaltungsanordnung zur elektronisch codierten Verriegelung von Schlössern - Google Patents

Schaltungsanordnung zur elektronisch codierten Verriegelung von Schlössern Download PDF

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Publication number
EP0047487A1
EP0047487A1 EP81106862A EP81106862A EP0047487A1 EP 0047487 A1 EP0047487 A1 EP 0047487A1 EP 81106862 A EP81106862 A EP 81106862A EP 81106862 A EP81106862 A EP 81106862A EP 0047487 A1 EP0047487 A1 EP 0047487A1
Authority
EP
European Patent Office
Prior art keywords
voltage
circuit arrangement
unlocking
signals
arrangement according
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Withdrawn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
EP81106862A
Other languages
German (de)
English (en)
French (fr)
Inventor
Klaus Stösser
Heinz Vinson
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.)
Gold- und Silber-Scheideanstalt Oberstein Franz Reischauer
Evonik Operations GmbH
Original Assignee
Gold- und Silber-Scheideanstalt Oberstein Franz Reischauer
Degussa GmbH
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 Gold- und Silber-Scheideanstalt Oberstein Franz Reischauer, Degussa GmbH filed Critical Gold- und Silber-Scheideanstalt Oberstein Franz Reischauer
Publication of EP0047487A1 publication Critical patent/EP0047487A1/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00674—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons
    • G07C9/00682—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons actuated repeatedly

Definitions

  • the invention relates to a circuit arrangement which is provided for electronically coded locking of locks and with one or more keys for entering the code signals and with devices for storing the code to be recognized for unlocking and for processing the signals, i.e. for comparing the decoding signals with the stored code, for deciding and for triggering the unlocking if the decoding signals match the stored code.
  • the circuit arrangement according to the invention is particularly suitable for bags, suitcases and other portable containers, but it can also be used for door locks, car locks and other types of locks.
  • Numeric locks with electronic coding are already known in a variety of designs. Since their function depends on a secure power supply, these locks are only suitable and intended for stationary installation.
  • the object of the invention is therefore to overcome these disadvantages and to provide a circuit arrangement with electronic coding which is also suitable for suitcase locks and with which the case can be reliably locked and opened at any time.
  • the supply voltage is checked automatically after each closure actuation under load and / or regularly at predetermined time intervals.
  • a threshold value which is 70 to 90% of the nominal voltage
  • all functions are switched off, but the memory content is retained until the voltage drops to 30 to 50% of the nominal value and by pressing the button again or applying an external voltage source returns to the normal operating state.
  • a microcomputer is provided as a device for controlling and processing the signals and for controlling the voltage monitoring.
  • the circuit arrangement according to the invention essentially consists of a control unit 1, into which the code signals are input via two keys 2, 3, an event counter 4, a shift register 5, a coding field 6, a comparator and decision circuit 7 and from units 8 and 9 for generating the unlocking or locking pulses. There is also a time counter 10, a signal generator 11, a power supply 12 and a voltage monitor 13.
  • the locking mechanism of the lock not shown, which responds to the unlocking and locking signals of the units 8 and 9, is also indicated and designated by 14.
  • the coding field 6 is a mechanical memory
  • the coding is expediently carried out with the aid of coding switches or wire bridges which are separated for coding, or by programmable diode arrangements and changed by the user if necessary.
  • the coding field 6 is only accessible when the container is open - this is a bag or a case. Since it is a mechanical storage arrangement, it is insensitive to magnetic or electrical interference fields. If the power supply fails, the coding is also retained, but of course an unlocking pulse can only be generated with an existing energy source.
  • the power supply 12 is therefore provided with the voltage monitor 13, which triggers an unlocking pulse and, if appropriate, a signal when the voltage drops below a threshold value.
  • the decoding ie the keying in of the predetermined code to be decrypted, is carried out by the user with the aid of the two keys 2, 3, which have different values and corresponding to the Code must be operated in a specific order.
  • the code the number sequence of a date, an account number, passport number or the like can be used, for example, if one key is pressed when the number is odd and the other key is pressed when the number is even.
  • the rhythm of a particular song is also useful as a reminder if one key is assigned short pauses, the other long pauses. In general, it should also be no problem to remember the sequence of key actuation given as a code without reminder.
  • the decoding signals can be entered blindly.
  • the event counter 4 is advanced by one step. After entering the number of keys specified by the coding, the event counter 4 prevents the time counter 10 from being reset again and, via the control unit 1, activates the comparator and decision circuit 7, which is activated in the shift register 5 by the decoding process, ie by pressing the key 2, 3 entered information / tion with the bit sequence specified in coding field 6. If there is a match, the unlocking stage 8 is activated depending on the control unit 1, an unlocking pulse is triggered and the locking mechanism 14 is thus released. In addition, the signal generator 11 gives the user a visual or acoustic prompt to open the closure. After the time period specified by the time counter 10 has expired, the signal caused by the stage 11 ends and - again controlled by the control unit 1 - a locking pulse or a pulse sequence is triggered via the stage 9.
  • the triggering of the unlocking as well as the locking pulse can be made dependent on a repeated actuation of the button 2 or 3.
  • only key 2 is used to enter the code signal sequence, while key 3 is used to mark the beginning and end of the signal sequences.
  • the event counter is only advanced by one step each time the marking key 3 is pressed. Otherwise, the construction and operation of the circuit is similar to that shown.
  • the number of keyings and coding options required depends primarily on the memory used for the coding field and shift register. A sufficient number of encryption options in practice can be achieved with an 8-bit memory.
  • a commercially available 9 volt battery was used for the circuit arrangement according to FIG. 1, which is provided for a suitcase or pocket lock, and which guarantees an operating time of over 10,000 hours, that is approximately 1 year.
  • the power consumption of the circuit arrangement according to the invention is extremely low because only a short pulse is required to trigger the unlocking as well as for the locking.
  • the voltage monitor 13 which ensures that the container is unlocked when the voltage drops, releases the time counter 10 via the control unit 1 permanently as soon as the voltage falls below a limit value.
  • a certain number of unlocking processes are triggered while preventing a new locking.
  • the state "closure no longer secured" is also indicated by the signal generator 11 by means of pulsed light signals or a mechanically triggered continuous signal.
  • the coding can be changed at any time individually by the user using the buttons 2, 3 after actuation of a switch (not shown).
  • all essential functions are controlled by a microcomputer 15; the coding and decoding signals are preferably entered serially via one or more keys in the keypad 16. In some cases it is advantageous to provide separate keys for code entry and for auxiliary functions. With the switch 17 indicated in dashed lines in the keypad 16, certain functions can be signaled or controlled, e.g. completion of code entry, code acceptance, unlocking the lock regardless of the time of decoding, etc.
  • an operating mode switch 18 is provided in FIG. 2, which has the positions “coding”, “test” and “operation”.
  • the switch 18 is arranged such that it is no longer accessible after the locking, e.g. inside a suitcase.
  • the switch position "Test” is important for learning or practicing coding and decoding, because in this switch position no locking can occur, but only correct coding is indicated with the aid of the signal transmitter 19.
  • an oscillator 20 is expediently connected externally to the microcomputer 15, with its associated frequency divider 21 a particularly favorable working frequency for the microcomputer 15 can be set. With a view to low power consumption, the working frequency should not be higher than necessary.
  • the locking and unlocking signals are fed via line 22 to block 23, which is shown in broken lines in FIG. 2, and to assemblies 24 to 27 contains.
  • the locking mechanism has, as an essential element, an electric servomotor 25, which moves a locking bolt (not shown) axially - depending on the direction of rotation - from one end position to the other, with the help of the limit switches 26, for example Hall effect position switches , the respective end position is reported back to the microcomputer 15 via the line 28.
  • the control here motor control "right / left", is symbolized by 24 in FIG.
  • the energy supply takes place with the aid of construction stage 29.
  • it contains four 1.5 volt batteries connected in series.
  • the battery voltage U 1 is measured and the battery is tested according to the invention with the aid of the voltage monitor 30, which is likewise controlled here by the microcomputer 15.
  • the voltage is measured each time the motor 25 is started after a delay of approximately 100 ms, ie after the start-up phase of this motor has ended. If a threshold value is undershot, an optical or acoustic signal is triggered via the signal transmitter 19 and at the same time the renewed locking, but not the unlocking, is prevented.
  • the threshold is 4.8 volts, for example.
  • the programmed code is retained until the voltage drops below approximately 2.7 volts. If the voltage of the aged battery remains above this limit, the normal function can be restored via the connections 31 after connecting an external battery, a power supply unit or the like.
  • a mechanically secured emergency program in the form of the additional memory 32 is additionally provided according to an advantageous embodiment of the invention.
  • the lock After deleting the code stored electronically in the microcomputer due to a total failure of the power supply. after the voltage drops below 2.7 volts, the lock remains closed and can - after connecting an external voltage source U ext . - can only be unlocked using the emergency code. This is particularly advantageous when using the circuit arrangement according to the invention for briefcases, suitcases or the like, which are sometimes not used for longer periods, which is why it can happen that the drop in battery voltage below 2.7 volts is not noticed in time.
  • the voltage monitoring according to the invention additionally checks the battery voltage every 24 hours, regardless of the actuation of the closure or the motor 25, and all functions are switched off when the threshold value falls below 4.8 volts.
  • the quiescent current was reduced from 30 uA to 1 / uA. With this measure, the electronically stored code can be retained for many months or even years, even if the battery is old and weak.
  • the lock is used again, all functions are switched on again and, if the supply voltage is still above 2.7 volts, unlocking and, if necessary, a renewed locking is possible up to a certain limit.
  • FIG. 2 there is also a solar cell 33 with which, when the batteries 29 are replaced by corresponding rechargeable cells, the entire energy for all functions of the circuit arrangement according to the invention, also for the actuation of the servomotor 25, can be obtained; in this case the voltage source only serves as a buffer.
  • a button cell is sufficient, which despite its small dimensions has a lifespan of several years.
  • the construction stage 34 in FIG. 2 also serves to minimize the electricity requirement.
  • the "inner routine" of the microcomputer 15 is only started for a short time when the keys 16 are pressed, in that the microcomputer 15 switches from its standby position to the operating state.
  • Additional electronic devices can be used to take advantage of the many possibilities of a microcomputer lines, for example an electronic clock, can be integrated into the circuit arrangement shown in the figure with little additional effort.
  • a frequency-stable signal for controlling the clock is available through the oscillator 20, which is present anyway.
  • a lock with electronically coded locking can be realized in a comparatively simple manner, which is powered independently of the mains from a battery or an accumulator and in which an unintentional unlocking or locking as a result of used or aged ones is nevertheless highly reliable Voltage source is prevented.
  • the entire electronics are relatively simple and can therefore be produced with little economic outlay.
  • the measures provided according to the invention ensure that the lock can be unlocked even after a voltage drop or power failure.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
EP81106862A 1980-09-04 1981-09-02 Schaltungsanordnung zur elektronisch codierten Verriegelung von Schlössern Withdrawn EP0047487A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3033233 1980-09-04
DE19803033233 DE3033233A1 (de) 1980-09-04 1980-09-04 Schaltungsanordnung zur elektronisch codierten verriegelung von schloessern (ii)

Publications (1)

Publication Number Publication Date
EP0047487A1 true EP0047487A1 (de) 1982-03-17

Family

ID=6111078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106862A Withdrawn EP0047487A1 (de) 1980-09-04 1981-09-02 Schaltungsanordnung zur elektronisch codierten Verriegelung von Schlössern

Country Status (4)

Country Link
EP (1) EP0047487A1 (da)
JP (1) JPS57501535A (da)
DE (1) DE3033233A1 (da)
WO (1) WO1982000846A1 (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699376A1 (fr) * 1992-12-22 1994-06-24 Samsonite Corp Dispositif de verrouillage d'un mécanisme de fermeture pour bagage.
FR2769662A1 (fr) * 1997-10-13 1999-04-16 Siemens Automotive Sa Procede de verrouillage / deverrouillage a distance des portieres d'un vehicule automobile

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0408953B1 (de) * 1989-07-21 1994-01-26 Theodor Kromer GmbH & Co.KG Spezialfabrik für Sicherheitsschlösser Permutationsschloss mit einer Nockenscheibe und Zuhaltungsscheiben
DE4020871A1 (de) * 1989-07-21 1991-01-31 Kromer Theodor Gmbh & Co Kg Permutationsschloss mit einer nockenscheibe und zuhaltungsscheiben
DE4022200A1 (de) * 1990-07-12 1992-01-16 Rainer Lueck Elektronisches schloss
JPH07109857A (ja) * 1993-10-14 1995-04-25 Kumahira Safe Co Inc 電子タイムロック制御機構
EP3020029B1 (en) * 2013-07-11 2017-11-01 Mul-T-Lock Technologies Ltd. Low power override for locking device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755718A (en) * 1971-09-09 1973-08-28 N Nicholson Combination electric lock
US4148092A (en) * 1977-08-04 1979-04-03 Ricky Martin Electronic combination door lock with dead bolt sensing means
DE2909134A1 (de) * 1978-03-17 1979-09-20 Neiman Gmbh & Co Kg Vorrichtung zur steuerung einer kraftfahrzeugschliessvorrichtung
DE2913955A1 (de) * 1979-04-06 1980-10-09 Matthias Design Corp Koffer mit einem schlie"mechanismus
EP0030587A1 (en) * 1979-12-18 1981-06-24 Iwasaki Engineering Co., Ltd. Electronic locking device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1130731B (de) * 1958-05-16 1962-05-30 Bosch Gmbh Robert Elektrische Schalteinrichtung fuer eine Antriebsvorrichtung zum OEffnen und Schliessen von Schiebern und Klappen, insbesondere Fenster- und Tuerfluegeln von Fahrzeugen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755718A (en) * 1971-09-09 1973-08-28 N Nicholson Combination electric lock
US4148092A (en) * 1977-08-04 1979-04-03 Ricky Martin Electronic combination door lock with dead bolt sensing means
DE2909134A1 (de) * 1978-03-17 1979-09-20 Neiman Gmbh & Co Kg Vorrichtung zur steuerung einer kraftfahrzeugschliessvorrichtung
GB2016576A (en) * 1978-03-17 1979-09-26 Neiman Sa Control device for vehicle locks
DE2913955A1 (de) * 1979-04-06 1980-10-09 Matthias Design Corp Koffer mit einem schlie"mechanismus
EP0030587A1 (en) * 1979-12-18 1981-06-24 Iwasaki Engineering Co., Ltd. Electronic locking device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699376A1 (fr) * 1992-12-22 1994-06-24 Samsonite Corp Dispositif de verrouillage d'un mécanisme de fermeture pour bagage.
FR2769662A1 (fr) * 1997-10-13 1999-04-16 Siemens Automotive Sa Procede de verrouillage / deverrouillage a distance des portieres d'un vehicule automobile

Also Published As

Publication number Publication date
WO1982000846A1 (en) 1982-03-18
DE3033233A1 (de) 1982-04-08
JPS57501535A (da) 1982-08-26

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Inventor name: VINSON, HEINZ

Inventor name: STOESSER, KLAUS