EP1327963A1 - Akustische Wellen verwendende Steuervorrichtung für ein Kombinationsschloss - Google Patents

Akustische Wellen verwendende Steuervorrichtung für ein Kombinationsschloss Download PDF

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Publication number
EP1327963A1
EP1327963A1 EP02425010A EP02425010A EP1327963A1 EP 1327963 A1 EP1327963 A1 EP 1327963A1 EP 02425010 A EP02425010 A EP 02425010A EP 02425010 A EP02425010 A EP 02425010A EP 1327963 A1 EP1327963 A1 EP 1327963A1
Authority
EP
European Patent Office
Prior art keywords
door
code
control
lock
acoustic signal
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Withdrawn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
EP02425010A
Other languages
English (en)
French (fr)
Inventor
Silvano De Stefanis
Mario Taricco
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.)
Taricco Mario & C SNC
Original Assignee
Taricco Mario & C SNC
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 Taricco Mario & C SNC filed Critical Taricco Mario & C SNC
Priority to EP02425010A priority Critical patent/EP1327963A1/de
Publication of EP1327963A1 publication Critical patent/EP1327963A1/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Withdrawn legal-status Critical Current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
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • 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
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00801—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by acoustic waves

Definitions

  • the present invention relates to a control device for a combination lock, in particular to an electronically operable lock, of a type described in the preamble to Claim 1.
  • Electronic locks are known in which an identification code (usually for unlocking the lock) is entered by means of a keypad arranged on the door.
  • a control unit receives this code, accesses a memory and compares it with a list stored therein and, if the code corresponds to one in the memory, interprets this as permitted access and releases the locking device so that the door can be opened.
  • the presence of this keypad constitutes a weak point in the door since it is possible to attempt to force the lock by means of the cable connecting it to the keypad.
  • Japanese Patent Application JP 11-210288 describes an electronic system for controlling a lock associated with a door, which includes means for detecting a knock thereon. When these means recognize that someone has knocked on the door, they alert the control unit which uses a two-way radio to send a signal checking an identification code.
  • the aerial is also visible and could invite attempts at forcing the lock.
  • the electronic lock is associated with an armoured door, it is not possible to arrange the aerial inside the door since it would be very difficult for it to receive signals correctly from outside.
  • the object of the present invention is to provide a control device for a combination lock of the type mentioned, whereby it is possible to transmit a code for releasing the lock which has no visible elements on the outside of the door which would enable the position of the lock to be recognised, and no weak points enabling it to be forced or broken.
  • One advantage is that it is possible to fit such a control device to existing locks without having to drill holes or perform other operations in order to run wires between the inside and the outside of the door, operations which would prove somewhat complicated in the case of very thick or heavily armoured doors.
  • Figures 1 and 2 show an armoured door, that of a safe for example, with a body 1 having a lock 2 of a known type.
  • This lock includes a casing 3 containing a mechanism (not shown) able to move bolts 5 so that they enter corresponding cavities in a fixed part of an opening (not shown).
  • This mechanism is controlled electronically by means of an actuator 6, also of a known type.
  • the lock 2 and the actuator 6 are fixed to the inside surface of the body 1 of the door, but they could also be incorporated into the body 1 itself.
  • a handle 7 is present on the outside surface of the door.
  • a housing 8 is also secured to the inside surface of the door and contains, as shown in Figure 3, a first portion of the control device of the invention, including an electronic control unit 10, a memory device 11 and a transmitting-receiving unit 12.
  • the control unit 10 is connected electrically to the actuator 6 by means of a cable 13 so that it can control the release of the lock 2.
  • This control unit is also connected electrically both to the memory 11 and to the transmitter-receiver 12.
  • a battery 14 supplies power to the electronic components arranged on the body 1 of the door.
  • control unit 10 and the memory 11 are arranged in a known manner, whereby the memory 11 is able to store a comparison code or combination, and the control unit 10 is able to receive an input control code (as will be explained in greater detail later), to compare this received code with the comparison code retrieved from the memory 11 and, should the input code have a predetermined relation with the comparison code, to control the release of the lock 2.
  • a second portion of the control device comprises a control box 15, which is preferably removable and portable, adapted to generate a code controlling the release of the lock.
  • This control box 15 includes a box-like casing 15a containing a control circuit 16 which connects a battery 16a supplying power to the components of the control box 15, a memory 16b, a keypad 17 for entering an identity code, a percussion member 18 able to produce a controlled vibration or acoustic signal in the body 1 of the door, thereby transmitting a control code generated by the control circuit on the entering of a correct identification code, a microphone 19 able to detect a vibration through the body 1 of the door and a screen 20 for visually displaying data such as, for example, the arrival of a reply signal via the microphone 19, or the power charge of the battery 16a.
  • the percussion member 18 is constituted by a movable element operated by a solenoid (not shown).
  • a solenoid When the solenoid is activated by a power impulse, it urges the movable element against the door, causing a knock.
  • the percussion member 18 could be constructed in any other way, provided that it is able to cause a vibration in the body 1 in response to an electrical signal from the control circuit.
  • the casing 15a includes fixing means 21 on its contact face, enabling the control box 15 to be secured to the body 1 of the door, in the direction shown by the arrow in Figure 1, so that the identification code can be transmitted.
  • the fixing means are preferably magnetic, if the body 1 of the door is of a metal material, or of any other type, such as suction or form locking means. These means are formed in such a way that the percussion member 18 is able to strike the body 1 of the door. They can have through holes, for example, through which the movable element can run during its strike against the door.
  • the receiving-transmitting unit 12 includes a percussion member 22 able to produce a vibration in the body 1 of the door corresponding to the reply signal described above, and a microphone 23, able to pick up the vibration corresponding to the control code travelling through the body 1 of the door and to convert it into an electrical signal.
  • an additional battery (not shown) inside the housing 8 which is rechargeable by piezoelectric recharging means, able to convert the vibrations into electrical impulses used to recharge the battery.
  • An operator keys into the pad 17 an identification code, constituted for example by decimal numbers.
  • the control circuit 16 converts the entered code into a control code which can be constituted, for example, by a group of three hexadecimal numbers, for each of which an exclusive OR operation is executed using three numbers chosen at random from a series of 250, stored earlier both in the memory 16b of the control box 15 and in the memory 11 of the lock.
  • the control code is converted by the percussion member 18 into an acoustic signal which includes a series of impulses, represented in Figures 3 to 5 by broken arrows across the body 1 of the door.
  • a preferred sequence of these impulses through the signal is shown in Figure 6.
  • the control circuit 16 reads one bit BC of the generated control code and, should this bit BC be equal to 1, controls the percussion member 18 to impart one tap on the body 1 of the door. Should the bit BC be 0, the percussion member 18 remains still.
  • the control circuit reads the next bit BC and so on until the code is completed.
  • the first synchronisation pulse transmitted by the control box 15 travels through the body 1 of the door until it reaches the transmitter-receiver radio 12 through the microphone 23, thereby activating the control unit 10 which starts to read the incoming pulses.
  • the control circuit 16 transmits an index in the same way, the function of which will be explained later, and a check sum, in a predetermined order.
  • the control unit 10 analyzes the incoming data: if it recognizes that the transmission is correct (exact number of bits and valid check number) it decodes the sent number using the index as a pointer to find the series of numbers in the memory 11 to use as decrypting key.
  • control unit 10 deactivates the lock, memorizes the opening number and transmits data on the state of the battery, using the percussion member 22 of the transmitter-receiver 12 which transmits a reply signal by means of a sequence of pulses similar to that previously described.
  • the control circuit 16 receives the reply signal through the microphone 19, displays the message "DOOR OPEN” or "BATTERY LOW" on the screen 20 and updates the index.
  • This index will be used to seek the key and codify the code the next time the door is opened.
  • the code entered by the user is modified by the numerical algorithm according to a key which changes each time the door is opened, thus preventing any misuse of a code which has been recorded by means of a microphone. Retransmission of the same sequence of pulses would not be recognized by the control unit 10, which is expecting a code encrypted by the next group of three numbers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
EP02425010A 2002-01-14 2002-01-14 Akustische Wellen verwendende Steuervorrichtung für ein Kombinationsschloss Withdrawn EP1327963A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02425010A EP1327963A1 (de) 2002-01-14 2002-01-14 Akustische Wellen verwendende Steuervorrichtung für ein Kombinationsschloss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425010A EP1327963A1 (de) 2002-01-14 2002-01-14 Akustische Wellen verwendende Steuervorrichtung für ein Kombinationsschloss

Publications (1)

Publication Number Publication Date
EP1327963A1 true EP1327963A1 (de) 2003-07-16

Family

ID=8185824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02425010A Withdrawn EP1327963A1 (de) 2002-01-14 2002-01-14 Akustische Wellen verwendende Steuervorrichtung für ein Kombinationsschloss

Country Status (1)

Country Link
EP (1) EP1327963A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015059689A1 (en) * 2013-10-21 2015-04-30 Knock N'lock Ltd. Access control device
EP2874088A1 (de) * 2013-11-18 2015-05-20 Tata Consultancy Services Limited Multifaktorauthentifizierung
CN108876970A (zh) * 2017-05-15 2018-11-23 深圳君正时代集成电路有限公司 一种电子锁设备、用户终端设备以及开锁方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197524A (en) * 1978-12-29 1980-04-08 General Electric Company Tap-actuated lock and method of actuating the lock
EP0803623A1 (de) * 1996-04-22 1997-10-29 HÜLSBECK & FÜRST GmbH & CO. KG Schliesseinrichtung für Fahrzeuge mit einem codierten elektronischen Schloss sowie Vorrichtung zur Codierung des Schlüssels
WO1998039539A1 (en) * 1997-03-07 1998-09-11 Ilan Goldman Data transmission system and components thereof
CA2300021A1 (en) * 1999-03-05 2000-09-05 9068-7005 Quebec Inc. Knocking activated device and method for operating an electromechanical device responsive to a control signal
WO2001059238A2 (en) * 2000-02-10 2001-08-16 Ilan Goldman Data receiving device for use in an impulse-based data transmission system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197524A (en) * 1978-12-29 1980-04-08 General Electric Company Tap-actuated lock and method of actuating the lock
EP0803623A1 (de) * 1996-04-22 1997-10-29 HÜLSBECK & FÜRST GmbH & CO. KG Schliesseinrichtung für Fahrzeuge mit einem codierten elektronischen Schloss sowie Vorrichtung zur Codierung des Schlüssels
WO1998039539A1 (en) * 1997-03-07 1998-09-11 Ilan Goldman Data transmission system and components thereof
CA2300021A1 (en) * 1999-03-05 2000-09-05 9068-7005 Quebec Inc. Knocking activated device and method for operating an electromechanical device responsive to a control signal
WO2001059238A2 (en) * 2000-02-10 2001-08-16 Ilan Goldman Data receiving device for use in an impulse-based data transmission system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015059689A1 (en) * 2013-10-21 2015-04-30 Knock N'lock Ltd. Access control device
CN105659297A (zh) * 2013-10-21 2016-06-08 诺克N’洛克有限公司 访问控制装置
US9767628B2 (en) 2013-10-21 2017-09-19 Knock N'lock Ltd. Access control device for delivering coded knocks
CN105659297B (zh) * 2013-10-21 2018-07-03 诺克N’洛克有限公司 访问控制装置
EP2874088A1 (de) * 2013-11-18 2015-05-20 Tata Consultancy Services Limited Multifaktorauthentifizierung
AU2014250733B2 (en) * 2013-11-18 2020-04-09 Tata Consultancy Services Limited Multi-factor authentication
CN108876970A (zh) * 2017-05-15 2018-11-23 深圳君正时代集成电路有限公司 一种电子锁设备、用户终端设备以及开锁方法

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