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EP1468157B1 - Lock and key with a device for the transmission of data and electric energy between the key and the lock - Google Patents

Lock and key with a device for the transmission of data and electric energy between the key and the lock Download PDF

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Publication number
EP1468157B1
EP1468157B1 EP03701496A EP03701496A EP1468157B1 EP 1468157 B1 EP1468157 B1 EP 1468157B1 EP 03701496 A EP03701496 A EP 03701496A EP 03701496 A EP03701496 A EP 03701496A EP 1468157 B1 EP1468157 B1 EP 1468157B1
Authority
EP
European Patent Office
Prior art keywords
key
lock
circuit
data
electric energy
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.)
Expired - Lifetime
Application number
EP03701496A
Other languages
German (de)
French (fr)
Other versions
EP1468157A1 (en
Inventor
Ennio Bandini
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.)
Iseo Serrature SpA
Original Assignee
Iseo Serrature SpA
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 Iseo Serrature SpA filed Critical Iseo Serrature SpA
Publication of EP1468157A1 publication Critical patent/EP1468157A1/en
Application granted granted Critical
Publication of EP1468157B1 publication Critical patent/EP1468157B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309Electronically 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
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0611Cylinder locks with electromagnetic control
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0082Induction for charging or current transformation
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00579Power supply for the keyless data carrier
    • G07C2009/00603Power supply for the keyless data carrier by power transmission from lock
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753Electronically 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
    • G07C2009/00769Electronically 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
    • G07C2009/00777Electronically 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 induction

Definitions

  • the present finding concerns a cylinder rotor of a lock in combination with a key and with a device for the transfer of electric energy and data between the key and the cylinder rotor of the lock.
  • the aim of the present finding is to eliminate the problems described above in well known electromechanical locks.
  • a further object of the finding is to create a cylinder rotor of a lock in combination with a key and with a device in which the data and electric energy can be transmitted even where dust, oxides, liquids, lubricants and similar products are present.
  • a further object of the finding is to create a cylinder rotor of a lock in combination with a key and with a device that permit the use of the locks even in environments with a high pollution level.
  • a further object of the finding is to create a cylinder rotor of a lock in combination with a key and with a device in which the maintenance of the lock circuit is practically inexistent thus providing considerable savings in the cost of programmed maintenance.
  • a further object of the finding is to create a cylinder rotor of a lock in combination with a key and with a device that permit high-level electric transmission between the key and the cylinder of the lock and vice-versa.
  • Last but not least object of the finding is to create a cylinder rotor of a lock in combination with a key and with a device such that the lock requires little maintenance at low cost.
  • a cylinder rotor of a lock in combination with a key and with a device for data and electric energy transmission between a key and the cylinder rotor, according to claim 1.
  • the device for data and electric energy transmission between the key 1, and the cylinder 3 of a lock comprises a first electromagnetic circuit A1 associated with key 1, and a second electromagnetic circuit A2 associated with cylinder 3.
  • the first and second electromagnetic circuits A1 and A2 include connection means for mutual connection during the insertion of the key 1 inside slot A3 of cylinder 3 so that it creates a third electromagnetic circuit 4 adapted to transmit data and electric energy from the primary winding A6 of the first circuit, to the secondary A7 of the second circuit.
  • this forms an electric transformer in which the energy put on in the primary winding A6 is transferred to the secondary winding A7 in the form of a magnetic flux which is suitably sent to a circuit of ferromagnetic material, or advantageously created using ferrite.
  • the use of ferrite makes it possible to use high frequency in order to obtain a band that is adequate for data transmission and high performance for energy transmission.
  • first and second electromagnetic circuits respectively comprise a first and second bar A4 and A5 that result as connected to each other.
  • the first and second bars also result as wound from the coil A6 and A7.
  • the third electromagnetic circuit 4 is thus formed by the mutual coupling of the first and second magnetic circuits forming a closed circuit.
  • FIGS. 5 and 6 show a different example which is not according to the invention as claimed.
  • Coil A11 of the first electromagnetic circuit A9 is subject to a time variable voltage with the same or different frequency band as the second electromagnetic circuit A8, and an amplitude proportional to the ratio between the number of turns of primary winding All, compared to the secondary winding A10 to permit data transmission from key 1 to cylinder 3 and vice-versa.
  • the supply transfer from the key to the cylinder generates a magnetic flux through the primary winding A11 that is sent to the ferromagnetic circuit by passing it through the secondary winding A10 into which an electromotive force is induced, able to supply the electronic circuit and the actuator located inside the cylinder.
  • the data is transmitted using one of the classical electric transmission theory methods such as frequency modulation, amplitude, PWM phase, or any other method thus permitting data transmission from the key to the cylinder and vice-versa.
  • Data is transmitted in digital and/or analogue form.
  • the invention can be used in a method for transmitting data and electric energy between a key and a standard cylinder of a lock as shown schematically in the figures 7 to 9 .
  • the method consists in inserting the key equipped with a first electromagnetic circuit A1 into the cylinder equipped with a second electromagnetic circuit A2.
  • a third electromagnetic circuit 4 is activated through the coupling of the first and second electromagnetic circuit.
  • the key code is transmitted to the cylinder through the application to the first electromagnetic circuit of a time variable voltage with the same or a different frequency band as the second circuit and an amplitude proportional to the ratio between the number of winding turns of the first and second electromagnetic circuits.
  • the energy taken from the secondary magnetic circuit coil must also provide the supply for the relative electronic circuits for decoding the electronic key code.
  • a signal applied to the primary magnetic circuit coil supplies both the energy and the data on the secondary magnetic circuit winding.
  • the device according to the finding is particularly advantageous for eliminating all the drawbacks of electromagnetic locks mainly due to the use of electric contacts.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)
  • Near-Field Transmission Systems (AREA)
  • Chairs Characterized By Structure (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

The device and method for the transmission of data and electric energy between the key and the cylinder of a lock comprises a first electromagnetic circuit associated with the key, and a second electromagnetic circuit associated with the cylinder, the first and second electromagnetic circuits have connection means for mutual connection during the insertion of the key into the cylinder forming a third electromagnetic circuit that transmits at least the electric energy from the primary winding of the first circuit to the secondary (winding) of the second circuit.

Description

  • The present finding concerns a cylinder rotor of a lock in combination with a key and with a device for the transfer of electric energy and data between the key and the cylinder rotor of the lock.
  • It is well known that numerous types of locks exist on the market at present, that are normally equipped with a rotor, a stator, mechanical and/or electromechanical double locks, and a key to activate the lock (open-closed).
  • In the electromechanical locks electric contacts are normally present to transmit both data and electric energy from the key to the cylinder of the lock and vice-versa.
  • The definition provided above makes it easy to understand how the use of electric contacts in an electromechanical type lock present numerous problems.
  • For example, if the lock is mounted in a polluted environment, the presence of dust, oxides, liquids, lubricants and similar products that deposit either on the key or the lock will not permit the energy and data transmission through the electric contacts, including all the problems that can arise in these conditions.
  • Accordingly, in order to always obtain correct performance with electromechanical type locks, the electric contacts on the lock must be cleaned frequently.
  • Said definition above results in frequent and expensive maintenance operations to maintain the electric contacts clean, in order to ensure electric contact conduction.
  • This situation provokes considerable problems, for example, in the case of large-scale buildings with numerous locks.
  • The aim of the present finding is to eliminate the problems described above in well known electromechanical locks.
  • A further object of the finding is to create a cylinder rotor of a lock in combination with a key and with a device in which the data and electric energy can be transmitted even where dust, oxides, liquids, lubricants and similar products are present.
  • A further object of the finding is to create a cylinder rotor of a lock in combination with a key and with a device that permit the use of the locks even in environments with a high pollution level.
  • A further object of the finding is to create a cylinder rotor of a lock in combination with a key and with a device in which the maintenance of the lock circuit is practically inexistent thus providing considerable savings in the cost of programmed maintenance.
  • A further object of the finding is to create a cylinder rotor of a lock in combination with a key and with a device that permit high-level electric transmission between the key and the cylinder of the lock and vice-versa.
  • Last but not least object of the finding is to create a cylinder rotor of a lock in combination with a key and with a device such that the lock requires little maintenance at low cost.
  • This aim, as well as these and other objects are achieved by a cylinder rotor of a lock in combination with a key and with a device for data and electric energy transmission between a key and the cylinder rotor, according to claim 1.
  • Further characteristics and advantages of this invention will be more evident from the description of a preferred but not limiting embodiment of cylinder rotor of a lock in combination with a key and with a device for electric energy and data transmission between the key and the cylinder rotor according to the finding, illustrated in an indicative but in no way limitative manner in the enclosed drawings wherein:
    • figure 1 is a view in perspective of the key according to the finding;
    • figure 2 is a vertical front view of the key according to the finding;
    • figure 3 is a view in perspective of the cylinder according to the finding;
    • figure 4 is a plan view of the first and second electromagnetic circuits according to the finding;
    • figure 5 is a view in perspective of a different example of the cylinder and the key which is not part of the invention as claimed.
    • figure 6 is a plan view of a different example of the first and second electromagnetic circuits which is not part of the invention as claimed ; and
    • figures from 7 to 9 show diagrammatically certain function applications according to the finding.
  • With particular reference to the figures described above, the device for data and electric energy transmission between the key 1, and the cylinder 3 of a lock, not illustrated, comprises a first electromagnetic circuit A1 associated with key 1, and a second electromagnetic circuit A2 associated with cylinder 3.
  • The first and second electromagnetic circuits A1 and A2 include connection means for mutual connection during the insertion of the key 1 inside slot A3 of cylinder 3 so that it creates a third electromagnetic circuit 4 adapted to transmit data and electric energy from the primary winding A6 of the first circuit, to the secondary A7 of the second circuit.
  • In short, when a first electromagnetic circuit is coupled with the second electromagnetic circuit, this forms an electric transformer in which the energy put on in the primary winding A6 is transferred to the secondary winding A7 in the form of a magnetic flux which is suitably sent to a circuit of ferromagnetic material, or advantageously created using ferrite.
  • Advantageously, the use of ferrite makes it possible to use high frequency in order to obtain a band that is adequate for data transmission and high performance for energy transmission.
  • In particular, the first and second electromagnetic circuits respectively comprise a first and second bar A4 and A5 that result as connected to each other.
  • In the case illustrated as an example, the first and second bars also result as wound from the coil A6 and A7.
  • The third electromagnetic circuit 4 is thus formed by the mutual coupling of the first and second magnetic circuits forming a closed circuit.
  • Figures 5 and 6 show a different example which is not according to the invention as claimed.
  • Coil A11 of the first electromagnetic circuit A9 is subject to a time variable voltage with the same or different frequency band as the second electromagnetic circuit A8, and an amplitude proportional to the ratio between the number of turns of primary winding All, compared to the secondary winding A10 to permit data transmission from key 1 to cylinder 3 and vice-versa.
  • In short, the supply transfer from the key to the cylinder generates a magnetic flux through the primary winding A11 that is sent to the ferromagnetic circuit by passing it through the secondary winding A10 into which an electromotive force is induced, able to supply the electronic circuit and the actuator located inside the cylinder.
  • As stated previously, the data is transmitted using one of the classical electric transmission theory methods such as frequency modulation, amplitude, PWM phase, or any other method thus permitting data transmission from the key to the cylinder and vice-versa.
  • Data is transmitted in digital and/or analogue form.
  • Lastly, it should be emphasised that the turns are produced using appropriately insulated conductor wiring.
  • The invention can be used in a method for transmitting data and electric energy between a key and a standard cylinder of a lock as shown schematically in the figures 7 to 9.
  • In particular, the method consists in inserting the key equipped with a first electromagnetic circuit A1 into the cylinder equipped with a second electromagnetic circuit A2.
  • Subsequently, a third electromagnetic circuit 4 is activated through the coupling of the first and second electromagnetic circuit.
  • The key code is transmitted to the cylinder through the application to the first electromagnetic circuit of a time variable voltage with the same or a different frequency band as the second circuit and an amplitude proportional to the ratio between the number of winding turns of the first and second electromagnetic circuits.
  • At this point the key code is recognised and the necessary electric energy is transmitted in the form of a magnetic flux to activate the lock actuator.
  • As well as activating the actuator, the energy taken from the secondary magnetic circuit coil must also provide the supply for the relative electronic circuits for decoding the electronic key code.
  • Lastly the circuit is switched off after actuator rotation, even possibly with the key inserted.
  • Advantageously according to the invention a signal applied to the primary magnetic circuit coil, supplies both the energy and the data on the secondary magnetic circuit winding.
  • Practically speaking, it has been demonstrated that the device according to the finding is particularly advantageous for eliminating all the drawbacks of electromagnetic locks mainly due to the use of electric contacts.
  • The finding according to this concept can be subject to numerous modifications and variants while remaining within the inventive idea as claimed.
  • Practically speaking, the materials employed as well as the size of the elements can vary according to necessity and the technical state of the art.

Claims (5)

  1. A cylinder rotor (3) of a lock in combination with a key (1) and with a device for the transmission of data and electric energy between the key (1) and the cylinder rotor 13) of the lock, comprising a first electromagnetic circuit (A1) in said key (1), and a second electromagnetic circuit (A2) in said CHARACTERISED IN THAT a cylinder rotor (3) of a lock, said first (A1) and second (A2) electromagnetic circuits have connection means for mutual connection during the insertion of said key (1) into said (3) forming a third electromagnetic circuit (4) that transmits at least the electric energy from the primary winding (A6) of said first circuit (A1) to the secondary winding (A7) of said second circuit (A2),
    said electric energy being transmitted from said primary winding (A6) to said secondary winding (A7) in the form of a magnetic flux appropriately transmitted to a ferromagnetic circuit produced using ferrites,
    said first (A1) and second (A2) electromagnetic circuits respectively comprising a first and second bar (A4,A5) connected to each other when the key (1) is inserted into said cylinder rotor (3), said first (A4) and second (A5) bars being both wound with a coil,
    said third electromagnetic circuit (4) being formed by the mutual coupling of said first (A1) and second (A2) magnetic circuit forming a closed circuit.
  2. A cylinder rotor (3) of a lock in combination with a key (1) and a device for the transmission of data and electric energy between the key (1) and the cylinder rotor (3) according to the previous claim, characterised in that a signal applied to said coil (A6) of said first electromagnetic circuit (A1) transmits both the energy and the data to said winding (A7) of said second electromagnetic circuit (A2).
  3. A cylinder rotor (3) of a lock in combination with a key (1) and a device for the transmission of data and electric energy between the key (1) and the cylinder rotor (3), according to one or more of the previous claims, characterised in that said first electromagnetic circuit (A1) is subject to a time variable voltage having the same or different frequency band as said second electromagnetic circuit (A2) and amplitude proportional to the ratio between the number of turns of said primary winding (A6) compared to said secondary winding (A7) for the transmission of said data from said key (1) to said cylinder rotor (3) and vice-versa.
  4. A cylinder rotor of a lock in combination with a key (1) and a device for the transmission of data and electric energy between the key (1) and the cylinder (3) according to one or more of the previous claims, characterised in that said data is transmitted in digital and/or analogue form.
  5. A cylinder rotor of a lock in combination with a key (1) and a device for the transmission of data and electric energy between the key (1) and the cylinder (3), according to claim 3 characterised in that said turns are produced using appropriately insulated conductor wiring.
EP03701496A 2002-01-09 2003-01-08 Lock and key with a device for the transmission of data and electric energy between the key and the lock Expired - Lifetime EP1468157B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2002MI000023A ITMI20020023A1 (en) 2002-01-09 2002-01-09 ELECTRICITY TRANSFER DEVICE AND PROCEDURE BETWEEN A KEY AND THE CYLINDER OF A LOCK
ITMI20020023 2002-01-09
PCT/EP2003/000091 WO2003058016A1 (en) 2002-01-09 2003-01-08 Device and method for the transmission of data and electric energy between a key and the cylinder of a lock

Publications (2)

Publication Number Publication Date
EP1468157A1 EP1468157A1 (en) 2004-10-20
EP1468157B1 true EP1468157B1 (en) 2008-03-05

Family

ID=11448812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03701496A Expired - Lifetime EP1468157B1 (en) 2002-01-09 2003-01-08 Lock and key with a device for the transmission of data and electric energy between the key and the lock

Country Status (10)

Country Link
EP (1) EP1468157B1 (en)
JP (1) JP2005514546A (en)
CN (1) CN100458092C (en)
AT (1) ATE388290T1 (en)
AU (1) AU2003202549A1 (en)
DE (1) DE60319505T2 (en)
ES (1) ES2303582T3 (en)
HK (1) HK1076645A1 (en)
IT (1) ITMI20020023A1 (en)
WO (1) WO2003058016A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11686124B2 (en) 2019-01-30 2023-06-27 Zhuhai Unitech Power Technology Co., Ltd. Method and system for operating key and lock core with wireless charging

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102044100A (en) * 2010-03-22 2011-05-04 珠海理想科技有限公司 Intelligent lock-control system for electric power safety

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997030255A1 (en) * 1996-02-15 1997-08-21 Toyota Jidosha Kabushiki Kaisha Locking system for a vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3515888A1 (en) * 1985-05-03 1986-11-06 Ymos Aktiengesellschaft Industrieprodukte, 6053 Obertshausen MECHANICAL-ELECTRONIC LOCKING DEVICE
CN2035371U (en) * 1988-06-06 1989-04-05 孟国来 Electromagnetic door lock
CH680082A5 (en) * 1989-12-15 1992-06-15 Bauer Kaba Ag
CN2200678Y (en) * 1994-07-14 1995-06-14 甘永光 Magnetic steel cipher electronic lock
DE19856292A1 (en) * 1997-12-12 1999-07-29 Aes Angewandte Elektroniksyste Electromagnetic cylinder lock with electronic control system between the key and the lock

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997030255A1 (en) * 1996-02-15 1997-08-21 Toyota Jidosha Kabushiki Kaisha Locking system for a vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11686124B2 (en) 2019-01-30 2023-06-27 Zhuhai Unitech Power Technology Co., Ltd. Method and system for operating key and lock core with wireless charging

Also Published As

Publication number Publication date
ITMI20020023A1 (en) 2003-07-09
EP1468157A1 (en) 2004-10-20
WO2003058016A1 (en) 2003-07-17
AU2003202549A1 (en) 2003-07-24
DE60319505D1 (en) 2008-04-17
JP2005514546A (en) 2005-05-19
ATE388290T1 (en) 2008-03-15
ITMI20020023A0 (en) 2002-01-09
HK1076645A1 (en) 2006-01-20
CN100458092C (en) 2009-02-04
CN1612970A (en) 2005-05-04
ES2303582T3 (en) 2008-08-16
DE60319505T2 (en) 2009-04-02

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