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WO2011112139A1 - Electronic locking system with non-contact operation by means of a control unit being arranged for detecting radio signals transmitted from a mobile unit - Google Patents

Electronic locking system with non-contact operation by means of a control unit being arranged for detecting radio signals transmitted from a mobile unit Download PDF

Info

Publication number
WO2011112139A1
WO2011112139A1 PCT/SE2011/050247 SE2011050247W WO2011112139A1 WO 2011112139 A1 WO2011112139 A1 WO 2011112139A1 SE 2011050247 W SE2011050247 W SE 2011050247W WO 2011112139 A1 WO2011112139 A1 WO 2011112139A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
locking device
radio signal
state
locking system
Prior art date
Application number
PCT/SE2011/050247
Other languages
French (fr)
Inventor
Tor SJÖDIN
Palm Michael
Original Assignee
Qure Ab
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 Qure Ab filed Critical Qure Ab
Publication of WO2011112139A1 publication Critical patent/WO2011112139A1/en

Links

Classifications

    • 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
    • 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
    • G07C9/00182Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional 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
    • 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
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B67/00Padlocks; Details thereof
    • E05B67/06Shackles; Arrangement of the shackle
    • E05B67/22Padlocks with sliding shackles, with or without rotary or pivotal movement
    • 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
    • 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
    • E05B2047/0094Mechanical aspects of remotely controlled 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
    • E05B47/0001Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • 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
    • G07C2009/00365Electronically 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 in combination with a wake-up circuit
    • G07C2009/00373Electronically 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 in combination with a wake-up circuit whereby the wake-up circuit is situated in the 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
    • G07C9/00817Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
    • G07C2009/00849Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed programming by learning

Definitions

  • the present invention refers to a locking system; more precisely a locking system comprising a locking device comprising a locking installation. a drive unit and a control circuit wherein said locking installation is
  • Locking systems are used in a multitude of different contexts for locking of e.g. homes, stores, cars or bicycles. By the employment of a locking system, the risk of store or housebreaking and that of car or bicycle theft is limited.
  • the locking systems can be arranged for a stationary arranged object, such as a home or a store, or for a mobile arranged object, such as a car or a bicycle.
  • the locking system can be arranged for non-contact manoeuvring of the locking installation. This means that the user locks or unlocks the locking device by manoeuvring the locking installation without touching the locking device, and the locking system can in this connection comprise some kind of remote control. In addition, or alternatively, the locking system can comprise some kind of key which physically intervenes with the locking device in order to manoeuvre the locking installation.
  • locking systems that include keys wherein the key is used only to open the locking device, not to lock it, e.g. padlocks which are opened by the means of a key and which are locked by means of engaging a mechanical force.
  • locking systems including keys
  • the keyhole itself entails exposure to the environment and thus exposure for external environmental influence, such as dirt, dust, gravel, salt etc. and such exposure can affect the functionality of the locking system and in certain cases render the locking system unusable.
  • a further limitation of the above mentioned key-based locking system is that the locking and opening is affected manually.
  • Locking systems arranged for non-contact manoeuvring of the locking installation normally requires a remote control to be handled manually in order to make active the drive unit needed for manoeuvring the locking installation. This kind of locking system can also be relatively energy consuming.
  • one object of the invention is to accomplish a devise which allows a simplified opening of a locking device and which avoids the effects of exposure for external environmental influence on the lock to any greater extent.
  • a further object of the invention is to provide a device allowing such an opening in a secure and reliable manner.
  • Another object with the present invention is to accomplish a device that allows non-contact manoeuvring of the locking device in an energy-efficient way.
  • a device regarding a locking system which comprises a locking device with a locking installation, a drive unit and a control circuit, wherein said locking installation is manoeuvrable between a first and a second state for opening and locking, respectively, of the locking devise, wherein said drive unit is arranged for manoeuvring the locking installation at least from said second state to said first state as a response to a receipt of a control signal, wherein said control circuit comprises a detector for detecting radio signals of a having a strength which exceeds a preset reference value, a comparator being arranged to compare the radio signal with a preset radio signal in response to each detected radio signal, and a control signal transmitter being, arranged to transmit said control signal to said drive unit if the radio signal compared by the comparator is identical to said preset radio signal.
  • An advantage of the present device according to the above is that the locking device can be manoeuvred by a mobile terminal and in that way a secure opening of the locking device is ensured.
  • Another advantage is that the locking device is completely closed without moving parts which can be exposed to various effects of the environment, e.g. dust, gravel, water etc.
  • said control circuit may be activated by detection of a radio signal with a strength which exceeds a preset reference value.
  • An advantage of this is that the locking device can be deactivated when it is not in use, which entails that the need for power supply in the said locking device is reduced compared to if the locking device were to be activated at all times.
  • the locking system further include a mobile terminal arranged to transmit said preset radio signal.
  • the locking system is arranged so that said mobile terminal is a mobile phone or a mobile computer unit.
  • the opening and/or locking of the locking device can be accomplished by means of a mobile phone.
  • said preset radio signal is within one of the intervals 868-870 MHz, 915-925 MHz or 2,4-2,5 GHz.
  • said preset radio signal is chosen from the group that consists of Bluetooth, WLAN, Zigbee, WiMAX, WImedia, RF-ID and NFC.
  • said preset radio signal comprises a coding
  • An advantage of the usage of a code is that locking and/or opening only can be executed by an authorised mobile terminal.
  • the detector is arranged to measure the strength of the detected radio signals according to RSSI (Received Signal Strength Indication).
  • An advantage of this is that a mobile terminal needs to be within a preset area in order to make active said other comparators, which entails that unintentional activation can be minimised.
  • said locking device is a lock which is movable in relation to the object which is to be locked.
  • said locking device is a U-lock, wire lock, chain lock or padlock.
  • said drive unit further includes a solenoid, whereby said solenoid is arranged to manoeuvre said locking installation at least from said second state to said first state.
  • the locking installation can be moved from a locked state to an open state.
  • the locking system includes a power supply source for the feeding of power to the locking device.
  • control circuit By using a power supply source, the control circuit as well as the solenoid can be powered.
  • the power supply source comprises a battery.
  • Figure 1 shows a locking system comprising a locking device and a mobile terminal, wherein the locking device further comprises a locking installation, a drive unit and a control circuit with a detector, a comparator and a control signal transmitter.
  • FIG. 2 shows a flowchart which illustrates the usage of said locking device.
  • FIG. 1 illustrates the embodiment of a locking system 10 including a locking device 12 and a mobile terminal 30 according to the present invention.
  • Mobile terminal 30 relates to a device which is portable and movable. Examples of a mobile terminal 30 are a portable computer or a mobile phone.
  • the locking system 10 is arranged for non-contact manoeuvring of the locking device's 12 locking installation 14 of the locking device 12.
  • Non-contact manoeuvring refers to that the user may manoeuvre the locking installation 14 by means of the mobile terminal 30 without touching the locking device 12.
  • the locking device 12 of the locking system 10 can be used to secure an object such as a car, a bicycle or a store by means of the locking device 12 locking said object.
  • An alternative can be to lock the object to yet another object.
  • An example of such another object is a bicycle stand.
  • the locking device 12 includes a control circuit 20, a drive unit 28 and a locking installation 14.
  • the mobile terminal 30 of the locking system 10 can be used to open the locking device 12 and in occurring cases also for locking of said locking device 12.
  • the mobile terminal 30 is arranged to send out a radio signal corresponding to a preset radio signal.
  • the mobile terminal 30 can hereby include software which allows tuning or adjustment of the transmitted radio signal. This software can enable a matching procedure with the control circuit 20 of the locking device or input of a preset coding of said radio signal.
  • the mobile terminal 30 can be arranged to continuously transmit said radio signal which corresponds to said preset radio signal. Alternatively, the mobile terminal 30 can be arranged to transmit the radio signal as a response to a command from the user.
  • the control circuit 20 of the locking device 12 of the locking system 10 comprises, as is clearly illustrated in figure 1 , a detector 22 for the receiving of radio signals, a comparator 24 for the comparison of radio signals and also a control signal transmitter 26 for the transmitting of a control signal.
  • the detector 22 is arranged for the receipt of radio signals and can also include an antenna or another kind of receiving means.
  • the detector can more precisely be arranged for the receipt of radio signals of some of the types Bluetooth, WLAN, WiMAX, Wlmedia, Zigbee, RF-ID, NFC, or another kind of format which can be used for wireless transmission of radio signals. Varieties of the above mentioned formats can also be used.
  • Bluetooth some of the different effect classes may be used
  • WLAN some of the different IEEE standards may be used, e.g. 802.11a, 802.11b, 802.11g or 802.11 ⁇ .
  • the detector 22 is arranged to detect radio signals with a strength that exceeds a preset reference strength.
  • the measuring of the strength of the radio signal can be executed by means of so called RSSI (Received Signal Strength Indication), which measures the power in a received radio signal.
  • RSSI Received Signal Strength Indication
  • RSSI can be used to determine a value which can be used as a limit value for the strength of the said radio signal.
  • the detector 22 can be arranged so that for each detected radio signal, it sends a detector signal to the comparator 24.
  • the detector signal can include the whole or parts of the radio signal received by the detector 22.
  • the comparator 24 is arranged to in response to each detected radio signal compare the radio signal with a preset radio signal.
  • the comparator 24 can herewith be arranged to compare the type of signal, the signal frequency, the coding etc. of the detected radio signal with the preset radio signal.
  • the comparator 24 can be arranged to be made active at the detection of a radio signal with a strength that exceeds said reference value. In case of the detector 22 at such detection is arranged to send a detector signal to the comparator 24, the comparator 24 is subsequently made active at the receipt of such a detector signal. Thus, said comparator 24 while not detecting a radio signal, i.e. in its normal condition, will be in an inactive mode.
  • Said comparator 24 can be arranged so that when the compared radio signal differs from the preset radio signal said comparator 24 returns to its inactive mode.
  • comparator 24 can be arranged to send a comparator signal to the control signal transmitter 26.
  • the locking device 12 can further comprise a memory which can be integrated in the control circuit and which is arranged to store said preset radio signal, wherein said memory is connected to said comparator 24.
  • the comparator 24 can in this embodiment compare the detected radio signal with the preset radio signal being stored in the memory.
  • control signal transmitter 26 is arranged to send a control signal to said drive unit 28.
  • the control signal transmitter can be arranged to transmit said control signal in response to the receipt of the comparator signal.
  • control signal transmitter 26 can be integrated in the comparator 24, and in such case the comparator signal constitutes said control signal.
  • the locking device 12 includes, as mentioned above, also a drive unit 28 which is arranged to manoeuvre the locking installation 14 of the locking device 12 at the receipt of a control signal from said control signal transmitter 26.
  • the drive unit 28 can include a solenoid which is associated with the locking installation 14 of the locking device 12.
  • the locking installation 14 is manoeuvrable between a first and a second state for opening or closing, respectively, the locking device 12.
  • the drive unit 28 is, as mentioned above, arranged to manoeuvre the locking installation 14, and is more precisely arranged to manoeuvre the locking installation 14 at least from said second state to said first state, i.e. for opening of the locking device 12.
  • the drive unit 28 can also be arranged to manoeuvre the locking installation 14 from said first state to said second state, i.e. for locking of the locking device 12.
  • the locking installation 14 can be arranged for manoeuvring from said first state to said second state through mechanical impact, e.g. by manual turning of a key.
  • the locking installation 14 can include a movable component to which the drive unit 28 is connected.
  • the moveable component can be arranged to work together with a body of the locking device 12, which body can be movably or fixedly arranged.
  • the locking device 12 In the open condition of the locking device 12, i.e. when the locking installation 14 is in said first state, it can be possible to remove the locking device 12 from the object which is to be secured.
  • the locking device 12 if applied to said object, and being in its locked condition, the locking device 12 is so arranged that it cannot be removed from the said object.
  • Said locking device 12 can, for the operation of the control circuit 20 and the drive unit 28, be equipped with a power supply source; the power supply source can include a battery.
  • the power supply source can include a battery.
  • solar cells can be arranged on an exterior of the locking device 12. Also other means being arranged for transforming mechanical work into electrical energy can be arranged for recharging of the battery.
  • the locking device 12 can be so arranged that it cannot be locked if the power of the battery is to weak. Due to that the inventive locking system 10 can be arranged so that the control circuit 20 of the locking device 12 is inactive as long as a radio signal with a strength exceeding a preset strength has not been detected, no energy is consumed from the battery during its normal condition. Only leakage current from the battery is what is consumed in the battery, which entails long battery life compared to the use of active electronics.
  • Figure 1 shows an inventive locking device 12 of padlock-model, and the locking installation 14 includes herewith a moveable component in the form of a locking pin 16 which is connected to a piston of the solenoid.
  • the locking pin 16 is arranged in connection to an opening of the locking device.
  • the locking pin 16 can be spring-loaded, as shown in figure 1. The spring- loading can be so arranged that the locking pin 16 strives towards a position which corresponds to said second state of the locking installation 14.
  • the locking pin 16 is, in its state corresponding to the said second state of the locking installation 14, arranged for engaging a recess in a free end of a body in the form of a movable U-bolt 18, when its free end is introduced in the opening of the locking device 12, for locking of the locking device 12.
  • the shackle 18 is thus moved, in a well-known way, so that its free end is introduced into the opening of the said locking device 12.
  • Said free end can exhibit a guide for engaging with the locking pin 16 for granting of the introduction of the free end in the opening.
  • the locking of the locking device 12 can thus be executed by a manual procedure.
  • the locking can be executed by a combined manual and non-contact procedure.
  • the locking pin 16 is herewith manoeuvred by the drive unit 28 through use of the mobile terminal 30.
  • the drive unit 28 will more precisely displace the piston in such a manner that the locking pin 16 is moved from a state which corresponds to said second state of the locking installation 14 to a state which corresponds to said first state of the locking installation 14.
  • the locking pin 16 is herewith withdrawn from the recess in the free end of the U-bolt 18, whereby the free end of the U-bolt 18 can be moved out of the opening of the locking device's 12. This displacement of the U-bolt 18 can be executed manually or by the assistance of a spring 19, which is illustrated in the figure.
  • the mobile terminal 30 of the locking system 10 is used for opening and in occurring cases locking of the locking device 12 of the locking system 10. More precisely will the detector 22 of the control circuit 20 of the locking device 12 detect the emitted radio signal from the mobile terminal 30 provided that the radio signal is strong enough, that is if the mobile terminal 30 is close enough to the locking device 12.
  • the locking device 12 of the inventive system can be supplied with means which allow mechanical manoeuvring of the locking installation 14. These means, which can have the form of a key and a key operated locking cylinder, can ensure that the locking device 12 can be locked and unlocked in such case the control circuit 20 or the drive unit 28 should have a breakdown. It should be noted though, that the presence of a keyhole entails an exposure to the environment which can have a negative effect on the life span of the locking device 12.
  • FIG 2 illustrates schematically a method for using a locking system 10 according to the invention, which locking system 10 includes the basic components described above with reference to figure 1.
  • the control circuit 20 of the locking device 12 is normally inactive (being the normal condition of the control circuit), wherein the detector 22 which is arranged to detect radio signals with a strength that exceeds a preset reference value. Radio signals having a strength below said reference value will thus not be detected.
  • the radio signal emitted from said mobile terminal 30 will exhibit a strength which exceeds the said reference value, wherein the detector 22 activates the electronics in the control circuit 20 of the locking device 12.
  • the detector 22 will, when detecting a radio signal, send a detector signal to the comparator 24.
  • the detector signal includes the whole or parts of the detected radio signal.
  • the reference value can be chosen at a suitable distance within which a mobile terminal 30 will be able to transmit sufficiently strong radio signals so that opening and in occurring cases locking of the locking device 12 is allowed.
  • a suitable distance between the locking device 12 and the mobile terminal 30 can be within the interval 0-50 cm, preferably 0-15 cm, and most preferably round 5 cm. It is however recognised that also other, larger distances are possible.
  • the detector signal can include a first signal component which is sent initially to activate the control circuit 20, and a second signal component which includes the whole or parts of the detected radio signal and which is sent after the first signal.
  • Measuring the strength of the radio signal can be performed as previously described by the means of so called RSSI.
  • Said comparator 24 compares the detected radio signal, which in this case has been supplied to the comparator 24 in the form of a detector signal, with said preset radio signal, and when these are in agreement said comparator 24 sends a comparator signal to a control signal transmitter 26.
  • the comparator 24 can be arranged to compare a signal coding, a signal frequency and/or a type of signal. If the received radio signal and the preset radio signal do not correspond with each other, the electronics return to an inactive mode.
  • the control signal transmitter 26 which can be integrated in the comparator 24, can be arranged for sending a control signal to the drive unit 28.
  • the drive unit 28 runs a solenoid for manoeuvring a locking installation 14 from a second state to a first state, whereby the locking device 12 is opened.
  • the drive unit 28 can also be arranged to manoeuvre the locking installation 14 from the first state to the second state for locking of the locking device 12. At the receipt of consecutive control signals the drive unit 28 can thus be arranged to alternately manoeuvre the locking installation to the first state and said second state, respectively. Alternatively, the locking installation 14 can only be moved from the said first state to said second state by applying a manual force, which means that the locking device 12 can only be locked manually.
  • the locking device 12 of the locking system 10 can include means for wireless communication with a network, such as the Internet, through e.g. an adjacent base unit in connection with said network. This would allow remote control of the locking device 12, which could be advantageous if the mobile terminal 30 should have a breakdown or get lost.
  • the radio signal for remote control can herewith differ from the preset radio signal.
  • the locking system 10 can be arranged so that it initially, before a first employment of the said locking system 10, can be calibrated, so that said locking device 12 only can be opened and/or locked by an authorised terminal.
  • Said calibration can, by way of example, take place when the locking device 12 is open and a mobile terminal 30 is within a distance from said locking device 12.
  • the mobile terminal 30 can emit radio signals which the receiver of the locking device 12 receives and stores in said memory.
  • the radio signal stored in the memory can then be used by the comparator 24 when said comparator 24 receives a radio signal.
  • the locking device 12 can only be calibrated to the mobile terminal 30 when the locking device 12 is in an open position. The advantage of this is that hacking of the locking device is rendered more difficult and perhaps even impossible.
  • the locking device 12 can further include a photocell or a solar cell (not shown).
  • a photocell or a solar cell not shown.
  • the locking device 12 can further include a mechanical push-button
  • the drive unit 28 can include a stepper motor, wherein the stepper motor is arranged to manoeuvre the locking installation 14 at least from the said second state to the said first state, but possibly also from the said first state to the said second state.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The present invention relates to a Locking system (10) comprising a locking device (12) with a locking installation (14), a drive unit (28) and a control circuit (20), wherein said locking installation (14) is manoeuvrable between a first and a second state for opening and locking, respectively, of the locking device (12), wherein said drive unit (28) is arranged for manoeuvring the locking installation (14) at least from the said second state to the said first state as a response to the reception of a control signal. Said control circuit (20) includes a detector (22) for detecting radio signals having a strength exceeding a preset reference value, a comparator (24) being arranged to in response to each detected radio signal compare the radio signal with said preset radio signal, and a control signal transmitter (26) being arranged to, if the radio signal compared by the comparator (24) is identical to said preset radio signal, transmit said control signal to said drive unit (28).

Description

ELECTRONIC LOCKING SYSTEM WITH NON-CONTACT OPERATION BY MEANS OF A CONTROL UNIT BEING ARRANGED FOR DETECTING RADIO SIGNALS TRANSMITTED FROM A MOBILE UNIT
FIELD OF THE INVENTION
The present invention refers to a locking system; more precisely a locking system comprising a locking device comprising a locking installation. a drive unit and a control circuit wherein said locking installation is
manoeuvrable between a first and a second state for opening and closing, respectively, of the locking device, and wherein said drive unit is arranged for marueuvring the locking installation at least from said second state to said first state as a response to the receipt of a control signal from the control circuit
BACKGROUND OF THE INVENTION
Locking systems are used in a multitude of different contexts for locking of e.g. homes, stores, cars or bicycles. By the employment of a locking system, the risk of store or housebreaking and that of car or bicycle theft is limited.
There are a variety of different kinds of locking systems on the market.
The locking systems can be arranged for a stationary arranged object, such as a home or a store, or for a mobile arranged object, such as a car or a bicycle.
The locking system can be arranged for non-contact manoeuvring of the locking installation. This means that the user locks or unlocks the locking device by manoeuvring the locking installation without touching the locking device, and the locking system can in this connection comprise some kind of remote control. In addition, or alternatively, the locking system can comprise some kind of key which physically intervenes with the locking device in order to manoeuvre the locking installation.
There are also locking systems that include keys wherein the key is used only to open the locking device, not to lock it, e.g. padlocks which are opened by the means of a key and which are locked by means of engaging a mechanical force.
One limitation of locking systems including keys, is that the keyhole itself entails exposure to the environment and thus exposure for external environmental influence, such as dirt, dust, gravel, salt etc. and such exposure can affect the functionality of the locking system and in certain cases render the locking system unusable.
A further limitation of the above mentioned key-based locking system is that the locking and opening is affected manually.
Locking systems arranged for non-contact manoeuvring of the locking installation normally requires a remote control to be handled manually in order to make active the drive unit needed for manoeuvring the locking installation. This kind of locking system can also be relatively energy consuming. SUMMARY OF THE INVENTION
Considering the above, one object of the invention is to accomplish a devise which allows a simplified opening of a locking device and which avoids the effects of exposure for external environmental influence on the lock to any greater extent.
A further object of the invention is to provide a device allowing such an opening in a secure and reliable manner.
Another object with the present invention is to accomplish a device that allows non-contact manoeuvring of the locking device in an energy-efficient way.
In order to achieve at least some of these objects, and also other objects made clear by the subsequent description, there are provided in accordance with the present invention, a device with the distinctive features stated in claim 1. Alternative embodiments are described in the dependent claims.
More precisely, there are provided in accordance with the present invention a device regarding a locking system which comprises a locking device with a locking installation, a drive unit and a control circuit, wherein said locking installation is manoeuvrable between a first and a second state for opening and locking, respectively, of the locking devise, wherein said drive unit is arranged for manoeuvring the locking installation at least from said second state to said first state as a response to a receipt of a control signal, wherein said control circuit comprises a detector for detecting radio signals of a having a strength which exceeds a preset reference value, a comparator being arranged to compare the radio signal with a preset radio signal in response to each detected radio signal, and a control signal transmitter being, arranged to transmit said control signal to said drive unit if the radio signal compared by the comparator is identical to said preset radio signal.
An advantage of the present device according to the above is that the locking device can be manoeuvred by a mobile terminal and in that way a secure opening of the locking device is ensured.
Another advantage is that the locking device is completely closed without moving parts which can be exposed to various effects of the environment, e.g. dust, gravel, water etc.
According to one embodiment, said control circuit may be activated by detection of a radio signal with a strength which exceeds a preset reference value.
An advantage of this is that the locking device can be deactivated when it is not in use, which entails that the need for power supply in the said locking device is reduced compared to if the locking device were to be activated at all times.
According to another embodiment the locking system further include a mobile terminal arranged to transmit said preset radio signal.
In yet another embodiment, the locking system is arranged so that said mobile terminal is a mobile phone or a mobile computer unit.
Thus, the opening and/or locking of the locking device can be accomplished by means of a mobile phone.
In an alternative embodiment, said preset radio signal is within one of the intervals 868-870 MHz, 915-925 MHz or 2,4-2,5 GHz.
The advantage of using these frequency bands is that it enables the usage of different kind of transfer protocols. Yet another advantage is that these frequency bands do not requires licence and are thus free of use.
According to another embodiment, said preset radio signal is chosen from the group that consists of Bluetooth, WLAN, Zigbee, WiMAX, WImedia, RF-ID and NFC.
According to one embodiment, said preset radio signal comprises a coding.
An advantage of the usage of a code is that locking and/or opening only can be executed by an authorised mobile terminal.
In an alternative embodiment, the detector is arranged to measure the strength of the detected radio signals according to RSSI (Received Signal Strength Indication).
An advantage of this is that a mobile terminal needs to be within a preset area in order to make active said other comparators, which entails that unintentional activation can be minimised.
According to one embodiment said locking device is a lock which is movable in relation to the object which is to be locked.
According to another embodiment said locking device is a U-lock, wire lock, chain lock or padlock.
According to yet another embodiment said drive unit further includes a solenoid, whereby said solenoid is arranged to manoeuvre said locking installation at least from said second state to said first state.
By using a solenoid, the locking installation can be moved from a locked state to an open state.
According to one embodiment, the locking system includes a power supply source for the feeding of power to the locking device.
By using a power supply source, the control circuit as well as the solenoid can be powered.
According to yet another embodiment, the power supply source comprises a battery.
The advantage of using a battery is that it can be exchanged when discharged. DESCRIPTION OF DRAWINGS
Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The figures should not be seen as a limitation of the present invention, but rather as an illustration better to understand the invention.
Figure 1 shows a locking system comprising a locking device and a mobile terminal, wherein the locking device further comprises a locking installation, a drive unit and a control circuit with a detector, a comparator and a control signal transmitter.
Figure 2 shows a flowchart which illustrates the usage of said locking device.
DETAILED DESCRIPTION
Figure 1 , to which reference is made, illustrates the embodiment of a locking system 10 including a locking device 12 and a mobile terminal 30 according to the present invention. Mobile terminal 30 relates to a device which is portable and movable. Examples of a mobile terminal 30 are a portable computer or a mobile phone.
The locking system 10 according to the present invention is arranged for non-contact manoeuvring of the locking device's 12 locking installation 14 of the locking device 12. Non-contact manoeuvring refers to that the user may manoeuvre the locking installation 14 by means of the mobile terminal 30 without touching the locking device 12.
The locking device 12 of the locking system 10 can be used to secure an object such as a car, a bicycle or a store by means of the locking device 12 locking said object. An alternative can be to lock the object to yet another object. An example of such another object is a bicycle stand.
The locking device 12 includes a control circuit 20, a drive unit 28 and a locking installation 14.
The mobile terminal 30 of the locking system 10 can be used to open the locking device 12 and in occurring cases also for locking of said locking device 12. The mobile terminal 30 is arranged to send out a radio signal corresponding to a preset radio signal. The mobile terminal 30 can hereby include software which allows tuning or adjustment of the transmitted radio signal. This software can enable a matching procedure with the control circuit 20 of the locking device or input of a preset coding of said radio signal.
The mobile terminal 30 can be arranged to continuously transmit said radio signal which corresponds to said preset radio signal. Alternatively, the mobile terminal 30 can be arranged to transmit the radio signal as a response to a command from the user.
The control circuit 20 of the locking device 12 of the locking system 10 comprises, as is clearly illustrated in figure 1 , a detector 22 for the receiving of radio signals, a comparator 24 for the comparison of radio signals and also a control signal transmitter 26 for the transmitting of a control signal.
The detector 22 is arranged for the receipt of radio signals and can also include an antenna or another kind of receiving means.
The detector can more precisely be arranged for the receipt of radio signals of some of the types Bluetooth, WLAN, WiMAX, Wlmedia, Zigbee, RF-ID, NFC, or another kind of format which can be used for wireless transmission of radio signals. Varieties of the above mentioned formats can also be used. By way of example, for Bluetooth some of the different effect classes may be used, for WLAN some of the different IEEE standards may be used, e.g. 802.11a, 802.11b, 802.11g or 802.11η.
The detector 22 is arranged to detect radio signals with a strength that exceeds a preset reference strength.
The measuring of the strength of the radio signal can be executed by means of so called RSSI (Received Signal Strength Indication), which measures the power in a received radio signal. The result of the
measurement provided by RSSI can be used to determine a value which can be used as a limit value for the strength of the said radio signal.
The detector 22 can be arranged so that for each detected radio signal, it sends a detector signal to the comparator 24. The detector signal can include the whole or parts of the radio signal received by the detector 22. The comparator 24 is arranged to in response to each detected radio signal compare the radio signal with a preset radio signal. The comparator 24 can herewith be arranged to compare the type of signal, the signal frequency, the coding etc. of the detected radio signal with the preset radio signal.
The comparator 24 can be arranged to be made active at the detection of a radio signal with a strength that exceeds said reference value. In case of the detector 22 at such detection is arranged to send a detector signal to the comparator 24, the comparator 24 is subsequently made active at the receipt of such a detector signal. Thus, said comparator 24 while not detecting a radio signal, i.e. in its normal condition, will be in an inactive mode.
Said comparator 24 can be arranged so that when the compared radio signal differs from the preset radio signal said comparator 24 returns to its inactive mode.
When identity between the compared radio signal and the preset radio signal is present said comparator 24 can be arranged to send a comparator signal to the control signal transmitter 26.
The locking device 12 can further comprise a memory which can be integrated in the control circuit and which is arranged to store said preset radio signal, wherein said memory is connected to said comparator 24. The comparator 24 can in this embodiment compare the detected radio signal with the preset radio signal being stored in the memory.
In case of the by the comparator 24 compared radio signal is identical to the preset radio signal the control signal transmitter 26 is arranged to send a control signal to said drive unit 28.
If the comparator 24 is arranged to emit a comparator signal as is the case when identity between the compared radio signal and the preset radio signal is present, the control signal transmittercan be arranged to transmit said control signal in response to the receipt of the comparator signal.
Alternatively, the control signal transmitter 26 can be integrated in the comparator 24, and in such case the comparator signal constitutes said control signal.
The locking device 12 includes, as mentioned above, also a drive unit 28 which is arranged to manoeuvre the locking installation 14 of the locking device 12 at the receipt of a control signal from said control signal transmitter 26.
The drive unit 28 can include a solenoid which is associated with the locking installation 14 of the locking device 12.
The locking installation 14 is manoeuvrable between a first and a second state for opening or closing, respectively, the locking device 12.
The drive unit 28 is, as mentioned above, arranged to manoeuvre the locking installation 14, and is more precisely arranged to manoeuvre the locking installation 14 at least from said second state to said first state, i.e. for opening of the locking device 12.
The drive unit 28 can also be arranged to manoeuvre the locking installation 14 from said first state to said second state, i.e. for locking of the locking device 12. Alternatively, the locking installation 14 can be arranged for manoeuvring from said first state to said second state through mechanical impact, e.g. by manual turning of a key.
The locking installation 14 can include a movable component to which the drive unit 28 is connected. The moveable component can be arranged to work together with a body of the locking device 12, which body can be movably or fixedly arranged.
In the open condition of the locking device 12, i.e. when the locking installation 14 is in said first state, it can be possible to remove the locking device 12 from the object which is to be secured. Herewith, if applied to said object, and being in its locked condition, the locking device 12 is so arranged that it cannot be removed from the said object.
Said locking device 12 can, for the operation of the control circuit 20 and the drive unit 28, be equipped with a power supply source; the power supply source can include a battery. In order to recharge the battery solar cells can be arranged on an exterior of the locking device 12. Also other means being arranged for transforming mechanical work into electrical energy can be arranged for recharging of the battery.
The locking device 12 can be so arranged that it cannot be locked if the power of the battery is to weak. Due to that the inventive locking system 10 can be arranged so that the control circuit 20 of the locking device 12 is inactive as long as a radio signal with a strength exceeding a preset strength has not been detected, no energy is consumed from the battery during its normal condition. Only leakage current from the battery is what is consumed in the battery, which entails long battery life compared to the use of active electronics.
Figure 1 shows an inventive locking device 12 of padlock-model, and the locking installation 14 includes herewith a moveable component in the form of a locking pin 16 which is connected to a piston of the solenoid. The locking pin 16 is arranged in connection to an opening of the locking device. The locking pin 16 can be spring-loaded, as shown in figure 1. The spring- loading can be so arranged that the locking pin 16 strives towards a position which corresponds to said second state of the locking installation 14.
When the solenoid is made active, the piston will be displaced and thereby move said locking pin 16 at least from a state which corresponds to the said second state of the locking installation 14 to a state which
corresponds to the said first state of the locking installation 14.
The locking pin 16 is, in its state corresponding to the said second state of the locking installation 14, arranged for engaging a recess in a free end of a body in the form of a movable U-bolt 18, when its free end is introduced in the opening of the locking device 12, for locking of the locking device 12.
For locking of the locking device 12, the shackle 18 is thus moved, in a well-known way, so that its free end is introduced into the opening of the said locking device 12. Said free end can exhibit a guide for engaging with the locking pin 16 for granting of the introduction of the free end in the opening. When alignment of the recess in relation to the locking pin 16 occurs the later is admitted to engage, by means of a spring force, with the recess of the U- bolt 16, whereby the locking device 12 is being locked. The locking of the locking device 12 can thus be executed by a manual procedure. Alternatively, the locking can be executed by a combined manual and non-contact procedure. The free end of the U-bolt 18 herewith enters manually into the opening of the locking device 12, however according to this embodiment the locking pin 16 is not spring-loaded but is placed into the state corresponding to the second position of the locking device only when the free end of the U- bolt is introduced in the opening and the recess is aligned with the locking pin 16. The locking pin 16 is herewith manoeuvred by the drive unit 28 through use of the mobile terminal 30.
To open the locking device 12, the locking installation 14 is
manoeuvred from said second state to said first state by means of the drive unit 28 through use of the mobile terminal 30. The drive unit 28 will more precisely displace the piston in such a manner that the locking pin 16 is moved from a state which corresponds to said second state of the locking installation 14 to a state which corresponds to said first state of the locking installation 14. The locking pin 16 is herewith withdrawn from the recess in the free end of the U-bolt 18, whereby the free end of the U-bolt 18 can be moved out of the opening of the locking device's 12. This displacement of the U-bolt 18 can be executed manually or by the assistance of a spring 19, which is illustrated in the figure.
As described above, the mobile terminal 30 of the locking system 10 is used for opening and in occurring cases locking of the locking device 12 of the locking system 10. More precisely will the detector 22 of the control circuit 20 of the locking device 12 detect the emitted radio signal from the mobile terminal 30 provided that the radio signal is strong enough, that is if the mobile terminal 30 is close enough to the locking device 12.
It is recognised that according to the scope of the invention that the locking device 12 of the inventive system can be supplied with means which allow mechanical manoeuvring of the locking installation 14. These means, which can have the form of a key and a key operated locking cylinder, can ensure that the locking device 12 can be locked and unlocked in such case the control circuit 20 or the drive unit 28 should have a breakdown. It should be noted though, that the presence of a keyhole entails an exposure to the environment which can have a negative effect on the life span of the locking device 12.
Figure 2, to which reference now is made, illustrates schematically a method for using a locking system 10 according to the invention, which locking system 10 includes the basic components described above with reference to figure 1.
The control circuit 20 of the locking device 12 is normally inactive (being the normal condition of the control circuit), wherein the detector 22 which is arranged to detect radio signals with a strength that exceeds a preset reference value. Radio signals having a strength below said reference value will thus not be detected.
When the mobile terminal 30 is close enough to said locking device 12 the radio signal emitted from said mobile terminal 30 will exhibit a strength which exceeds the said reference value, wherein the detector 22 activates the electronics in the control circuit 20 of the locking device 12.
More precisely, the detector 22 will, when detecting a radio signal, send a detector signal to the comparator 24. The detector signal includes the whole or parts of the detected radio signal.
The reference value can be chosen at a suitable distance within which a mobile terminal 30 will be able to transmit sufficiently strong radio signals so that opening and in occurring cases locking of the locking device 12 is allowed. A suitable distance between the locking device 12 and the mobile terminal 30 can be within the interval 0-50 cm, preferably 0-15 cm, and most preferably round 5 cm. It is however recognised that also other, larger distances are possible.
The detector signal can include a first signal component which is sent initially to activate the control circuit 20, and a second signal component which includes the whole or parts of the detected radio signal and which is sent after the first signal.
Measuring the strength of the radio signal can be performed as previously described by the means of so called RSSI.
Said comparator 24 compares the detected radio signal, which in this case has been supplied to the comparator 24 in the form of a detector signal, with said preset radio signal, and when these are in agreement said comparator 24 sends a comparator signal to a control signal transmitter 26.
The comparator 24 can be arranged to compare a signal coding, a signal frequency and/or a type of signal. If the received radio signal and the preset radio signal do not correspond with each other, the electronics return to an inactive mode.
The control signal transmitter 26, which can be integrated in the comparator 24, can be arranged for sending a control signal to the drive unit 28.
At the reception of a control signal, the drive unit 28 runs a solenoid for manoeuvring a locking installation 14 from a second state to a first state, whereby the locking device 12 is opened.
The drive unit 28 can also be arranged to manoeuvre the locking installation 14 from the first state to the second state for locking of the locking device 12. At the receipt of consecutive control signals the drive unit 28 can thus be arranged to alternately manoeuvre the locking installation to the first state and said second state, respectively. Alternatively, the locking installation 14 can only be moved from the said first state to said second state by applying a manual force, which means that the locking device 12 can only be locked manually.
It is recognised that the present invention is not limited to the shown and described designs, but that several modifications and variations are possible.
By way of example, the locking device 12 of the locking system 10 can include means for wireless communication with a network, such as the Internet, through e.g. an adjacent base unit in connection with said network. This would allow remote control of the locking device 12, which could be advantageous if the mobile terminal 30 should have a breakdown or get lost. The radio signal for remote control can herewith differ from the preset radio signal.
The locking system 10 can be arranged so that it initially, before a first employment of the said locking system 10, can be calibrated, so that said locking device 12 only can be opened and/or locked by an authorised terminal. Said calibration can, by way of example, take place when the locking device 12 is open and a mobile terminal 30 is within a distance from said locking device 12. The mobile terminal 30 can emit radio signals which the receiver of the locking device 12 receives and stores in said memory. The radio signal stored in the memory can then be used by the comparator 24 when said comparator 24 receives a radio signal. According to one
embodiment of the present invention the locking device 12 can only be calibrated to the mobile terminal 30 when the locking device 12 is in an open position. The advantage of this is that hacking of the locking device is rendered more difficult and perhaps even impossible.
The locking device 12 can further include a photocell or a solar cell (not shown). When the control circuit 20 of the locking device 12 is inactive, it can be made active if the photocell or the solar cell is shadowed.
The locking device 12 can further include a mechanical push-button
(not shown). When the locking device's 12 control circuit 20 is inactive it can be made active by operating the mechanical push-button.
The drive unit 28 can include a stepper motor, wherein the stepper motor is arranged to manoeuvre the locking installation 14 at least from the said second state to the said first state, but possibly also from the said first state to the said second state. Several variations and modifications are thus possible, why the extent of the invention is solely defined by the appended patent claims.

Claims

1. Locking system (10) comprising a mobile terminal (30) being arranged for transmitting a preset radio signal and a locking device (12) with a locking installation (14), a drive unit (28), a control circuit (20) and a power supply comprising a battery for the feeding of power to the said locking device (12),
wherein said locking installation (14) is manoeuvrable between a first and a second state for opening and locking, respectively, of the locking device (12),
wherein said drive unit (28) is arranged for manoeuvring the locking installation (14) at least from the said second state to the said first state as a response to the reception of a control signal,
wherein said control circuit (20) includes:
a detector (22) for detecting radio signals having a strength exceeding a preset reference value,
a comparator (24) being arranged to, in response to each detected radio signal, compare the radio signal with said preset radio signal, and
a control signal transmitter (26), being arranged to, if the radio signal compared by the comparator (24) is identical to said preset radio signal, transmit said control signal to said drive unit (28), c h a r a c t e r i s e d by that
the control circuit (20) is arranged to assume an inactive and an active mode, wherein the control circuit (20) is arranged to transform from said inactive mode to said active mode as a response to the detection of said radio signal having a strength exceeding a preset reference value.
2. Locking system (10) according to claim 1 , wherein said mobile terminal (30) is a mobile phone or a portable computer unit.
3. Locking system (10) according to any one of the previous claims, wherein a frequency of the said preset radio signal is within one of the intervals 868-870 MHz, 915-925 MHz or 2,4-2,5 GHz.
4. Locking system ( 0) according to any one of the previous claims, wherein said preset radio signal is chosen from the group consisting of Bluetooth, WLAN, Zigbee, Wlmedia, WiMAX, RF-ID and NFC.
5. Locking system (10) according to any of the previous claims, wherein the said detector is arranged to measure the strength of detected radio signals according to RSSI (Received Signal Strength Indication).
6. Locking system (10) according to any of the previous claims, wherein said locking device (12) is a lock which is moveable in relation to the object which is to be locked.
7. Locking system (10) according to claim 6, where said locking device (12) is a U-lock, wire lock, chain lock or padlock.
8. Locking system (10) according to any of the previous claims, wherein said drive unit (28) comprises a solenoid, wherein said solenoid is arranged for manoeuvring said locking installation (14) at least from said second state to said first state.
9. Locking system (10) according to any of the claims 1-7, wherein the said drive unit (28) comprises a stepper motor, where the said stepper motor is arranged for manoeuvring said locking installation (14) at least from the said second state to the said first state.
10. Locking system (10) according to any one of the previous claims, wherein the locking device (12) is calibrated for use against a specific mobile terminal (30), so that said locking device (12) only may be opened and/or closed by the authorised calibrated mobile terminal (30).
11. Locking system (10) according to claim 10, wherein the locking device (12) only may be calibrated against the mobile terminal (30) in case of the locking device (12) being in an open position.
PCT/SE2011/050247 2010-03-08 2011-03-04 Electronic locking system with non-contact operation by means of a control unit being arranged for detecting radio signals transmitted from a mobile unit WO2011112139A1 (en)

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CN103206121A (en) * 2012-01-11 2013-07-17 宁波德联信息科技有限公司 Safe smart lock
US9679429B2 (en) 2012-12-03 2017-06-13 13876 Yukon Inc. Wireless portable lock system
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CN104790759A (en) * 2015-03-05 2015-07-22 赵丕业 Network and manual operation synchronous lock
CN110905301A (en) * 2019-11-14 2020-03-24 徐慧 Intelligence storehouse pipe lock based on NB-IOT technique
CN111519997A (en) * 2020-04-30 2020-08-11 德施曼机电(中国)有限公司 Control method of passive intelligent door lock device
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