EP3942125B1 - A door lock actuation device for operating a door lock and an alarm installation with such door lock actuation device - Google Patents
A door lock actuation device for operating a door lock and an alarm installation with such door lock actuation device Download PDFInfo
- Publication number
- EP3942125B1 EP3942125B1 EP20712892.7A EP20712892A EP3942125B1 EP 3942125 B1 EP3942125 B1 EP 3942125B1 EP 20712892 A EP20712892 A EP 20712892A EP 3942125 B1 EP3942125 B1 EP 3942125B1
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- EP
- European Patent Office
- Prior art keywords
- door
- door lock
- housing
- actuation device
- screw
- 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.)
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
- E05B9/02—Casings of latch-bolt or deadbolt locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
- E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B45/00—Alarm locks
- E05B45/06—Electric alarm locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/06—Mechanical actuation by tampering with fastening
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/04—Monitoring of the detection circuits
- G08B29/046—Monitoring of the detection circuits prevention of tampering with detection circuits
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B45/00—Alarm locks
- E05B45/06—Electric alarm locks
- E05B2045/063—Electric alarm locks by movement of the wing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B45/00—Alarm locks
- E05B45/06—Electric alarm locks
- E05B2045/064—Electric alarm locks by movement of the lock housing or part thereof
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B45/00—Alarm locks
- E05B45/06—Electric alarm locks
- E05B2045/065—Switch or sensor type used in alarm locks
- E05B2045/067—Switches triggered by inertia
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0057—Feeding
- E05B2047/0058—Feeding by batteries
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0067—Monitoring
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0091—Retrofittable electric locks, e.g. an electric module can be attached to an existing manual lock
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0094—Mechanical aspects of remotely controlled locks
- E05B2047/0095—Mechanical aspects of locks controlled by telephone signals, e.g. by mobile phones
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- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19697—Arrangements wherein non-video detectors generate an alarm themselves
Definitions
- the invention relates to a door lock actuation device for operating a door lock.
- door lock actuation devices are sometimes known as “smart locks” and allow to electrically open and close the deadbolt of a door lock.
- the term "smart lock” will in the following be used as a synonym for such door lock actuation device.
- such smart lock takes over the function of a mechanical key. It allows operation of the door lock only for authorized people, for example those who carry a transponder or a smartphone with an app connected to the smart lock, and it moves a deadbolt of the door lock from the closed position to an open position so that the door can be opened, or from the open to the closed position so that the door is locked.
- a typical smart lock comprises an electric motor which provides the mechanical power for operating the deadbolt, batteries for providing the electrical power for operating the motor, and a control also supplied from the battery for controlling operation of the motor.
- the control receives an authorization signal indicating that an authorized person is in the vicinity of the door equipped with the smart lock.
- CN108266066A discloses an electronic lock for a locker (such as might be provided in a gym).
- a lock shell, a lock cylinder, a circuit board, a motor assembly, an engagement and disengagement mechanism and a battery assembly are all mounted in a housing.
- a button assembly is mounted on the outer side of the housing. The button assembly, the motor assembly and the battery assembly are electrically connected with the circuit board.
- a cam is mounted on an output shaft of the motor assembly.
- a grab handle is mounted on the outer side of the housing.
- the lock cylinder is mounted in the lock shell. The end, with a lock hole, of the lock cylinder is fixed in a shaft hole of the grab handle. The lock hole is exposed out of the outer side of the grab handle.
- a spring bolt mounted on the lock cylinder is exposed out of the inner side of the shell.
- the engagement and disengagement mechanism is located between the cam and the grab handle and adopts mechanical engagement and disengagement.
- US2015/287254A1 discloses electronic locking devices that may employ an accelerometer to detect an acceleration associated with displacement of a portion of an electronic locking device, for example, displacement of a housing provided about a door handle that includes a key hole. The housing may be opened to enable use of a mechanical key to unlock the lock.
- An accelerometer may be attached to the moveable part of the housing that is displaced to reveal the door handle and keyhole.
- a separate housing referred to as a control panel, is provided on the protected side of the door, the separate housing containing the lock power source, a processor and a transceiver.
- the object of the invention is to provide a smart lock which has an increased security level.
- the invention provides a smart lock for operating a door lock, comprising a housing having an interface side for being mounted on a door, an output element adapted for cooperating with the door lock, a drive device operatively connected to the output element, a control for controlling operation of the drive device, a battery compartment adapted for receiving at least one battery which supplies the drive device and the control, a battery cover attached to the housing, the battery cover being removable so as to allow access to the battery compartment, and a locking mechanism for locking the battery cover to the housing, the locking mechanism being accessible only from the interface side of the housing; characterised in that the locking mechanism comprises a screw, and a support block is formed integrally with the battery cover, the screw extending through the support block, the screw having a thread that is threaded into the housing; and in that the screw has a stepped thread with a first diameter at the tip of the screw and a second, larger diameter at the shaft of the screw, the first diameter thread engaging into the housing and the second diameter thread engaging into the support block.
- the support block is formed integrally with the battery cover, for example by injection moulding of the battery cover which is formed from a plastics material.
- the support block provides sufficient material, in particular viewed in an axial direction of the screw, so as to provide a mechanically strong connection with the screw.
- the special design of the screw allows mechanically connecting the screw both to the support block of the battery cover and the housing in a single step.
- the locking mechanism ensures that the battery cover cannot be easily removed from the housing in order to obtain access to the interior of the smart lock. Rather, it is necessary to remove the entire smart lock from the door before being able to open the battery cover.
- the screw forms a mechanically strong means for holding the battery cover in place.
- the screw can extend through an opening in the support block which is closed in a circumferential direction.
- the support block has a through- opening through which the screw extends. This makes it impossible to withdraw or disengage the battery cover in a radial direction from the screw.
- the battery cover is curved and comprises two locking tabs at opposite ends, the locking tabs engaging behind edges of the housing.
- the locking tabs provide a mechanical connection between the ends of the battery cover and the housing so that the battery compartment cannot be pried open with a tool.
- each of the tabs overlaps with the housing by approx. 2 % of circumference of the smart lock.
- an accelerometer is provided in the housing, in particular on a main PCB on which the electronic components of the control are mounted.
- the accelerometer can be used for detecting unusual movements of the smart lock which indicate that somebody is trying to tamper with the smart lock.
- the accelerometer can be mounted on an auxiliary PCB which is connected to a main PCB of the control.
- the connection between the auxiliary PCB and the main PCB can be made by means of a plug connection so that the installation is easily possible.
- the signals of the accelerometer can be sent via a communication module so as to integrate the accelerometer into an alarm installation.
- the signals sent by the communication module can be indicative of at least one of the following situations:
- the alarm installation can comprise a central unit and a smart lock as described above, with the central unit being adapted for triggering an alarm if the accelerometer signals indicate that the smart lock is being tampered with.
- the signals received from the accelerometer can be used to detect if the smart lock is unexpectedly removed from the door as could occur if the door lock is being tampered with. This might result in the smart lock being rotated, in order for example to disengage the door lock from the carrier. This might result in the smart lock being moved axially away from the door, or rotated about the plane of the door, which might occur is someone were attempting to prise the lock from the door or from the carrier.
- one or more the accelerometers are used in order to detect movement in each of these axes. Detecting such movement of the smart lock can be an indication that somebody tries to get access to the side of the smart lock usually rigidly connected to carrier.
- the alarm installation is notified in this regard to that signals which in an armed state of the alarm installation are suspicious, do not result in triggering of an alarm.
- the attempt to remove the lock from the door or carrier can be detected. It is also possible to detect the attempt to drill into the lock.
- the accelerometer can also detect shocks on the door, for example a thief trying to break open the locked door.
- the signals of accelerometer can also be used for detecting whether deadbolt should be moved towards the locked position after it has been opened. If the door lock has been opened and the door has not been moved for a specific period of time (which is detectable with the accelerometer), control can again operate drive device so as to close the door lock.
- FIG. 1 schematically shows a door 1 which is provided with a deadbolt 2.
- the deadbolt 2 can be moved between a closed or locked position (in which it protrudes outwardly over the respective end face of the door) and an open or unlocked position (in which it is retracted into the door so as to not protrude over the end face) by means of a door lock actuation device 10 (referred to in the following as "smart lock").
- Smart lock 10 comprises a housing 12 which is mechanically mounted on a carrier 3.
- Carrier 3 is screwed or otherwise mechanically connected to door 1.
- the side of the housing which is mounted to carrier 3 is referred to as being an interface side of the housing.
- a drive device 14 (here in the form of an electric motor) is arranged which is operatively connected to an output element 16.
- Output element 16 is operatively connected to deadbolt 2 so that rotation of output element 16 moves the deadbolt from the locked position to the opened position, and vice versa.
- a battery compartment 18 is formed in which a battery 20 is arranged.
- Battery 20 provides the electric energy for operating drive device 14.
- control 22 for controlling operation of drive device 14.
- the energy necessary for operation of control 22 is also provided by battery 20.
- smart lock 10 On the side remote from door 1, smart lock 10 is provided with an operating element 24 (e.g. a thumb turn) which is mechanically connected to output element 16 and allows rotation of the output element in case of need (e.g. a failure of the drive device or a lack of electric energy from batteries 20).
- an operating element 24 e.g. a thumb turn
- output element 16 On the side remote from door 1, smart lock 10 is provided with an operating element 24 (e.g. a thumb turn) which is mechanically connected to output element 16 and allows rotation of the output element in case of need (e.g. a failure of the drive device or a lack of electric energy from batteries 20).
- FIGS 2 to 6 show details of the construction of smart lock 10 according to the invention.
- One element of the smart lock according to the invention is a tamper-proof battery cover 26 which forms the external wall of battery compartment 18.
- Battery cover 26 has the shape of an approximately semi-circular shell and is provided with two locking tabs 28 at opposite ends. As can be seen in Figure 6 , each locking tab 28 extends over the entire width of battery cover 26.
- locking tabs 28 engage, when battery cover 26 is mounted to housing 12, behind edges of housing 12. Locking tabs 28 are comparatively long in the circumferential direction so that there is a significant overlap between locking tabs 28 and housing 12.
- Locking tabs 28 extend so far in under housing 12 so that there will never be a gap between battery cover 26 and housing 12 when somebody tries to pry the battery cover open, even if battery cover 26 flexes a little bit when put under load during an attempt to pry it open.
- locking tabs 28 are arranged at a small distance from an interior wall 30 which can form an abutment for locking tabs 28 in case somebody tries to press the entire battery cover into the housing.
- Battery cover 26 is provided with a support block 32 on its inner surface approximately in the middle between locking tabs 28.
- support block 32 is provided with an opening 34 through which a screw 36 extends.
- Screw 36 has a stepped thread at its forward portion, namely a thread 38 with a first diameter portion 38 and a second diameter portion 40.
- the second diameter is larger than the first diameter.
- Examples for the diameters can be 2 mm for the first diameter portion 38 and 3 mm for the second diameter portion 40.
- Threads 38, 40 are arranged such that the first diameter portion 38 engages into housing 12 (please see in particular Figure 4 ) while second diameter portion 40 is threaded into support block 32.
- opening 34 in support block 32 of battery cover 26 is provided with a reduced diameter at the end remote from the head of screw 36.
- Screw 36 thus mechanically engages both housing 12 and battery cover 26.
- a screw with a continuous thread could be used.
- Support block 32 together with screw 36 forms a locking mechanism which is accessible only from the interface side of housing 12 (the side of the housing adapted for being mounted on carrier 3). This can be seen in particular in Figure 3 . This effectively prevents any opening of battery compartment 18 as long as smart lock 10 is properly mounted to door 1.
- Control 22 is mounted on a PCB 42 which is arranged within housing 12.
- Walls 30 can be used for mounting PCB 42 within housing 12.
- PCB 42 also carries an accelerometer 46. Further, a communication module 48 (also referred to as an "RF module” is arranged on PCB 42.
- PCBs can be used, for example a main PCB for control 22 and an auxiliary PCB for the accelerometer and the RF module.
- the alarm installation can comprise other components such as glass breakage sensors, window sensors and door sensors.
- reference numeral 50 designates the living space of an apartment or a house.
- Door 1 provides access to living space 50.
- the door is equipped with smart lock 10.
- a central unit 52 is provided in the apartment or the house, which is part of an alarm installation. Additional intrusion detection devices, in particular magnet sensors which send a signal when a door or a window is being opened, or a glass breakage sensor are part of the alarm installation.
- Central unit 52 has a communication module 54 which can receive RF signals from smart lock 10, in particular the signals from the accelerometer. Central unit 52 can also send signals to smart lock 10 so as to control operation of drive device 14.
- Central unit 52 further includes an evaluation unit 56 for evaluating the accelerometer signals received from smart lock 10. Depending from the result of the evaluation, a plurality of different situations or occurrences can be detected, and control unit 52 can react with a specific response.
- Central unit 52 also includes an external communication device 58 via which a communication with an external monitoring station 60 (operations control).
- evaluation module 56 is used to distinguish between a plurality of different situations.
- a first situation consists in somebody removing smart lock 10 from door 1 without prior authorization.
- Signals indicative of such attempt comprise a rotation of the smart lock about a horizontal central axis of the smart lock, and a tilting of the smart lock about a horizontal axis which is perpendicular to the central axis.
- smart lock 10 is mounted to door 1 by means of a bayonet connection between smart lock 10 and carrier 3, the bayonet connection requiring a rotation of smart lock 10 around the central axis of the smart lock, this axis being perpendicular to the door. For removing the smart lock from the door, a rotation in the opposite direction is necessary.
- central unit 52 If central unit 52 detects that smart lock 10 is rotated or tilted in a manner which should not occur during normal operation, an alarm can be triggered.
- the alarm can involve a notification sent to monitoring station 60, and/or involve activation of a siren, a loudspeaker and/or an alarm light.
- the alarm can also put the entire alarm installation into a state of higher alert.
- a microphone and/or a camera 62 can be activated, and the information captured therewith can be transmitted either to operations control 60 for a decision whether or not the police should be notified or a guard should be sent, and/or the user so that he/she can see e.g. on his/her smartphone what is going on.
- the information captured by the microphone and/or the camera can also be evaluated by evaluation module 56 in order to detect it there is an intrusion or not. This reduces the number of false alarms.
- a maintenance signal is to be sent to central unit 52.
- the maintenance signal can either be sent from monitoring station 60 or can be initiated by the user directly at central unit 52, for example by inserting a corresponding PIN code. Subsequently, removal of smart lock 10 from door 1 is authorized without an alarm being triggered.
- the signals sent from accelerometer can also be used for detecting other attempts of tampering with smart lock 10 and/or door 1.
- shocks resulting from an interaction with the door for example from somebody trying to pry open the door, can be detected and result in an alarm being triggered.
- vibrations resulting from an interaction with the smart lock and/or the door can indicate that somebody tries to drill a whole into the door and/or the smart lock. In this case, an alarm is triggered as well.
- the signals received from the accelerometer can also be used for improving the operation of smart lock 10.
- a smart lock can move deadbolt 2 of door 1 from an unlocked to a locked position after a predefined period of time after opening of the door.
- the signals received from the accelerometer can either extend this time period or completely prevent smart lock 10 from locking deadbolt 2, as long as the door is being moved. Locking of deadbolt 2 can also be prevented when the signals of the accelerometer indicate that the door has come to a stop in an open position.
- Central unit 52 can also make smart lock 10 move deadbolt 2 towards a locked position when the signals received from the accelerometer indicate that there has been a contact between the door and the door frame, and the door has subsequently remained in a stationery condition. Then, an automatic locking of the door can be initiated.
- the signals received from the accelerometer can also be used to "overrule" an automated locking sequence implemented in the smart lock. It is known that the smart lock automatically moves the deadbolt from an unlocked to a locked position at a predetermined point in time after it was unlocked (for example 5 seconds). Central unit 52 can generate a delay signal which extends this time period as long as the signals received from the accelerometer indicate that either the door is still being moved or that the door has come to a stop in an open position. In both of these cases, it does not make much sense to move the deadbolt towards a locked position.
- the signals received from the accelerometer can also be used to very conveniently make smart lock 10 lock deadbolt 2. It is possible that a user stores in central unit 52 a specific sequence of knocks on the door or on the smart lock. Should the central unit receive signals from the accelerometer which correspond to this sequence of knocks after having previously received signals which indicate that the door has been closed, smart lock 10 is commanded to move deadbolt 2 into the locked position. It is thus possible for a user to close the door and knock on the door from the inside or outside with the predefined sequence so as to lock the door without any further steps.
Description
- The invention relates to a door lock actuation device for operating a door lock. Such door lock actuation devices are sometimes known as "smart locks" and allow to electrically open and close the deadbolt of a door lock. The term "smart lock" will in the following be used as a synonym for such door lock actuation device.
- Generally speaking, such smart lock takes over the function of a mechanical key. It allows operation of the door lock only for authorized people, for example those who carry a transponder or a smartphone with an app connected to the smart lock, and it moves a deadbolt of the door lock from the closed position to an open position so that the door can be opened, or from the open to the closed position so that the door is locked.
- A typical smart lock comprises an electric motor which provides the mechanical power for operating the deadbolt, batteries for providing the electrical power for operating the motor, and a control also supplied from the battery for controlling operation of the motor. The control receives an authorization signal indicating that an authorized person is in the vicinity of the door equipped with the smart lock.
- In order to provide a high level of security, certain measures should be taken both on a mechanical level and on an electronic level so as to avoid that unauthorized people can operate the smart lock and/or trigger an opening process. Some of the security measures are clearly on an electronic level (for example an encryption of the signals exchanged between for example a smartphone and the control), while there are others which are purely mechanical (for example the connection of the smart lock to the door itself). There however are also security measures which affect both mechanical and electronic aspects such as measures which prevent unauthorized access to the interior of the smart lock and thereby prevent a manipulation of electrical and electronic components.
-
CN108266066A discloses an electronic lock for a locker (such as might be provided in a gym). A lock shell, a lock cylinder, a circuit board, a motor assembly, an engagement and disengagement mechanism and a battery assembly are all mounted in a housing. A button assembly is mounted on the outer side of the housing. The button assembly, the motor assembly and the battery assembly are electrically connected with the circuit board. A cam is mounted on an output shaft of the motor assembly. A grab handle is mounted on the outer side of the housing. The lock cylinder is mounted in the lock shell. The end, with a lock hole, of the lock cylinder is fixed in a shaft hole of the grab handle. The lock hole is exposed out of the outer side of the grab handle. A spring bolt mounted on the lock cylinder is exposed out of the inner side of the shell. The engagement and disengagement mechanism is located between the cam and the grab handle and adopts mechanical engagement and disengagement. -
US2015/287254A1 discloses electronic locking devices that may employ an accelerometer to detect an acceleration associated with displacement of a portion of an electronic locking device, for example, displacement of a housing provided about a door handle that includes a key hole. The housing may be opened to enable use of a mechanical key to unlock the lock. An accelerometer may be attached to the moveable part of the housing that is displaced to reveal the door handle and keyhole. A separate housing, referred to as a control panel, is provided on the protected side of the door, the separate housing containing the lock power source, a processor and a transceiver. - The object of the invention is to provide a smart lock which has an increased security level.
- To this end, the invention provides a smart lock for operating a door lock, comprising a housing having an interface side for being mounted on a door, an output element adapted for cooperating with the door lock, a drive device operatively connected to the output element, a control for controlling operation of the drive device, a battery compartment adapted for receiving at least one battery which supplies the drive device and the control, a battery cover attached to the housing, the battery cover being removable so as to allow access to the battery compartment, and a locking mechanism for locking the battery cover to the housing, the locking mechanism being accessible only from the interface side of the housing; characterised in that the locking mechanism comprises a screw, and a support block is formed integrally with the battery cover, the screw extending through the support block, the screw having a thread that is threaded into the housing; and in that the screw has a stepped thread with a first diameter at the tip of the screw and a second, larger diameter at the shaft of the screw, the first diameter thread engaging into the housing and the second diameter thread engaging into the support block.
- The support block is formed integrally with the battery cover, for example by injection moulding of the battery cover which is formed from a plastics material.
- The support block provides sufficient material, in particular viewed in an axial direction of the screw, so as to provide a mechanically strong connection with the screw.
- The special design of the screw allows mechanically connecting the screw both to the support block of the battery cover and the housing in a single step.
- The locking mechanism ensures that the battery cover cannot be easily removed from the housing in order to obtain access to the interior of the smart lock. Rather, it is necessary to remove the entire smart lock from the door before being able to open the battery cover.
- The screw forms a mechanically strong means for holding the battery cover in place.
- The screw can extend through an opening in the support block which is closed in a circumferential direction. In other words, the support block has a through- opening through which the screw extends. This makes it impossible to withdraw or disengage the battery cover in a radial direction from the screw.
- According to an embodiment of the invention, the battery cover is curved and comprises two locking tabs at opposite ends, the locking tabs engaging behind edges of the housing. The locking tabs provide a mechanical connection between the ends of the battery cover and the housing so that the battery compartment cannot be pried open with a tool.
- Preferably, each of the tabs overlaps with the housing by approx. 2 % of circumference of the smart lock.
- The mechanical connection is particularly strong when the locking tabs engaging behind the edges of the housing extend over the entire width of the battery cover. According to a preferred embodiment, an accelerometer is provided in the housing, in particular on a main PCB on which the electronic components of the control are mounted. The accelerometer can be used for detecting unusual movements of the smart lock which indicate that somebody is trying to tamper with the smart lock.
- In order to allow adding the accelerometer to already existing smart locks, the accelerometer can be mounted on an auxiliary PCB which is connected to a main PCB of the control. The connection between the auxiliary PCB and the main PCB can be made by means of a plug connection so that the installation is easily possible.
- The signals of the accelerometer can be sent via a communication module so as to integrate the accelerometer into an alarm installation.
- The signals sent by the communication module can be indicative of at least one of the following situations:
- a rotation of the smart lock about a horizontal axis,
- a tilting of the smart lock about an axis which is perpendicular to the horizontal axis,
- rotation of the door to which the smart lock is mounted,
- vibrations resulting from an interaction with the smart lock,
- shocks resulting from an interaction with the door,
- stop of the door in an open position,
- closing of the door,
- a predefined sequence of knocks on the door of on the smart lock.
- The alarm installation can comprise a central unit and a smart lock as described above, with the central unit being adapted for triggering an alarm if the accelerometer signals indicate that the smart lock is being tampered with.
- The signals received from the accelerometer can be used to detect if the smart lock is unexpectedly removed from the door as could occur if the door lock is being tampered with. This might result in the smart lock being rotated, in order for example to disengage the door lock from the carrier. This might result in the smart lock being moved axially away from the door, or rotated about the plane of the door, which might occur is someone were attempting to prise the lock from the door or from the carrier. In preferred embodiments one or more the accelerometers are used in order to detect movement in each of these axes. Detecting such movement of the smart lock can be an indication that somebody tries to get access to the side of the smart lock usually rigidly connected to carrier.
- Should an authorized user intend to replace the smart lock or replace the batteries, the alarm installation is notified in this regard to that signals which in an armed state of the alarm installation are suspicious, do not result in triggering of an alarm.
- This protects the smart lock from tampering. As an example, the attempt to remove the lock from the door or carrier can be detected. It is also possible to detect the attempt to drill into the lock.
- The accelerometer can also detect shocks on the door, for example a thief trying to break open the locked door.
- The signals of accelerometer can also be used for detecting whether deadbolt should be moved towards the locked position after it has been opened. If the door lock has been opened and the door has not been moved for a specific period of time (which is detectable with the accelerometer), control can again operate drive device so as to close the door lock.
- It is also possible to use the signal from accelerometer to prevent the door lock from being operated from an open towards a locked condition as long as the door is moving.
- The invention will now be described with reference to the enclosed drawings. In the drawings,
-
Figure 1 schematically shows in a cross section a door with a door lock actuation device, -
Figure 2 shows a cross section through a door lock actuation device according to the invention, -
Figure 3 shows a cross section of the door lock actuation device ofFigure 2 in a view similar to that ofFigure 1 , -
Figure 4 shows details of the locking mechanism for locking the battery cover to the housing, -
Figure 5 shows the screw used in the locking mechanism, -
Figure 6 shows the battery cover in a perspective view, and -
Figure 7 shows an alarm installation employing the door lock actuation device as shown inFigures 1 to 6 . -
Figure 1 schematically shows a door 1 which is provided with adeadbolt 2. Thedeadbolt 2 can be moved between a closed or locked position (in which it protrudes outwardly over the respective end face of the door) and an open or unlocked position (in which it is retracted into the door so as to not protrude over the end face) by means of a door lock actuation device 10 (referred to in the following as "smart lock"). -
Smart lock 10 comprises ahousing 12 which is mechanically mounted on acarrier 3.Carrier 3 is screwed or otherwise mechanically connected to door 1. - The side of the housing which is mounted to
carrier 3 is referred to as being an interface side of the housing. - Within
housing 12, a drive device 14 (here in the form of an electric motor) is arranged which is operatively connected to anoutput element 16.Output element 16 is operatively connected todeadbolt 2 so that rotation ofoutput element 16 moves the deadbolt from the locked position to the opened position, and vice versa. - Within
housing 12, abattery compartment 18 is formed in which abattery 20 is arranged.Battery 20 provides the electric energy for operatingdrive device 14. - Within
housing 12, there is also arranged acontrol 22 for controlling operation ofdrive device 14. The energy necessary for operation ofcontrol 22 is also provided bybattery 20. - On the side remote from door 1,
smart lock 10 is provided with an operating element 24 (e.g. a thumb turn) which is mechanically connected tooutput element 16 and allows rotation of the output element in case of need (e.g. a failure of the drive device or a lack of electric energy from batteries 20). -
Figures 2 to 6 show details of the construction ofsmart lock 10 according to the invention. - One element of the smart lock according to the invention is a tamper-
proof battery cover 26 which forms the external wall ofbattery compartment 18. -
Battery cover 26 has the shape of an approximately semi-circular shell and is provided with two lockingtabs 28 at opposite ends. As can be seen inFigure 6 , each lockingtab 28 extends over the entire width ofbattery cover 26. - As can be seen in particular in
Figure 2 , lockingtabs 28 engage, whenbattery cover 26 is mounted tohousing 12, behind edges ofhousing 12. Lockingtabs 28 are comparatively long in the circumferential direction so that there is a significant overlap between lockingtabs 28 andhousing 12. - Locking
tabs 28 extend so far in underhousing 12 so that there will never be a gap betweenbattery cover 26 andhousing 12 when somebody tries to pry the battery cover open, even ifbattery cover 26 flexes a little bit when put under load during an attempt to pry it open. - As locking
tabs 28 extend over the full width ofbattery cover 28, this avoids any gap in the corners whilebattery cover 26 is flexing. - It can also be seen that the free ends of locking
tabs 28 are arranged at a small distance from aninterior wall 30 which can form an abutment for lockingtabs 28 in case somebody tries to press the entire battery cover into the housing. -
Battery cover 26 is provided with asupport block 32 on its inner surface approximately in the middle between lockingtabs 28. - As can be seen in particular in
Figures 3 and 4 ,support block 32 is provided with anopening 34 through which ascrew 36 extends. -
Screw 36 has a stepped thread at its forward portion, namely athread 38 with afirst diameter portion 38 and asecond diameter portion 40. The second diameter is larger than the first diameter. - Examples for the diameters can be 2 mm for the
first diameter portion second diameter portion 40. -
Threads first diameter portion 38 engages into housing 12 (please see in particularFigure 4 ) whilesecond diameter portion 40 is threaded intosupport block 32. To this end, opening 34 insupport block 32 ofbattery cover 26 is provided with a reduced diameter at the end remote from the head ofscrew 36. -
Screw 36 thus mechanically engages bothhousing 12 andbattery cover 26. - As an alternative to a stepped screw, a screw with a continuous thread could be used.
-
Support block 32 together withscrew 36 forms a locking mechanism which is accessible only from the interface side of housing 12 (the side of the housing adapted for being mounted on carrier 3). This can be seen in particular inFigure 3 . This effectively prevents any opening ofbattery compartment 18 as long assmart lock 10 is properly mounted to door 1. - This protects the smart lock from a tampering attempt in which electrical power to the lock is removed without first removing the smart lock from the door.
-
Control 22 is mounted on aPCB 42 which is arranged withinhousing 12.Walls 30 can be used for mountingPCB 42 withinhousing 12. -
PCB 42 also carries anaccelerometer 46. Further, a communication module 48 (also referred to as an "RF module" is arranged onPCB 42. - As an alternative, separate PCBs can be used, for example a main PCB for
control 22 and an auxiliary PCB for the accelerometer and the RF module. - With
communication module 48, signals received from theaccelerometer 46 can be sent to an alarm installation. The alarm installation can comprise other components such as glass breakage sensors, window sensors and door sensors. - An example of such alarm installation is shown in
Figure 7 . - In
Figure 7 ,reference numeral 50 designates the living space of an apartment or a house. Door 1 provides access to livingspace 50. The door is equipped withsmart lock 10. - A
central unit 52 is provided in the apartment or the house, which is part of an alarm installation. Additional intrusion detection devices, in particular magnet sensors which send a signal when a door or a window is being opened, or a glass breakage sensor are part of the alarm installation. -
Central unit 52 has acommunication module 54 which can receive RF signals fromsmart lock 10, in particular the signals from the accelerometer.Central unit 52 can also send signals tosmart lock 10 so as to control operation ofdrive device 14. -
Central unit 52 further includes anevaluation unit 56 for evaluating the accelerometer signals received fromsmart lock 10. Depending from the result of the evaluation, a plurality of different situations or occurrences can be detected, andcontrol unit 52 can react with a specific response. -
Central unit 52 also includes anexternal communication device 58 via which a communication with an external monitoring station 60 (operations control). - Generally speaking,
evaluation module 56 is used to distinguish between a plurality of different situations. - A first situation consists in somebody removing
smart lock 10 from door 1 without prior authorization. - Signals indicative of such attempt comprise a rotation of the smart lock about a horizontal central axis of the smart lock, and a tilting of the smart lock about a horizontal axis which is perpendicular to the central axis.
- Typically,
smart lock 10 is mounted to door 1 by means of a bayonet connection betweensmart lock 10 andcarrier 3, the bayonet connection requiring a rotation ofsmart lock 10 around the central axis of the smart lock, this axis being perpendicular to the door. For removing the smart lock from the door, a rotation in the opposite direction is necessary. - Should the signals of the accelerometer indicate that there is a rotation of
smart lock 10 around an axis which is horizontal and perpendicular to door 1, this is an indication thatsmart lock 10 is rotated so as to remove it fromcarrier 3 and thus from door 1. Should there be a rotation around a horizontal axis which is perpendicular to the first horizontal axis, this is an indication thatsmart lock 10 has been removed from door 1 as in a properly mounted condition,smart lock 10 can be rotated only around a vertical axis which coincides with the hinge axis of door 1. - If
central unit 52 detects thatsmart lock 10 is rotated or tilted in a manner which should not occur during normal operation, an alarm can be triggered. The alarm can involve a notification sent tomonitoring station 60, and/or involve activation of a siren, a loudspeaker and/or an alarm light. - The alarm can also put the entire alarm installation into a state of higher alert. In this state, a microphone and/or a
camera 62 can be activated, and the information captured therewith can be transmitted either to operations control 60 for a decision whether or not the police should be notified or a guard should be sent, and/or the user so that he/she can see e.g. on his/her smartphone what is going on. - The information captured by the microphone and/or the camera can also be evaluated by
evaluation module 56 in order to detect it there is an intrusion or not. This reduces the number of false alarms. - Should a user intend to replace
batteries 20, a maintenance signal is to be sent tocentral unit 52. The maintenance signal can either be sent frommonitoring station 60 or can be initiated by the user directly atcentral unit 52, for example by inserting a corresponding PIN code. Subsequently, removal ofsmart lock 10 from door 1 is authorized without an alarm being triggered. - The signals sent from accelerometer can also be used for detecting other attempts of tampering with
smart lock 10 and/or door 1. As an example, shocks resulting from an interaction with the door, for example from somebody trying to pry open the door, can be detected and result in an alarm being triggered. Further, vibrations resulting from an interaction with the smart lock and/or the door can indicate that somebody tries to drill a whole into the door and/or the smart lock. In this case, an alarm is triggered as well. - The signals received from the accelerometer can also be used for improving the operation of
smart lock 10. - It is known that a smart lock can move
deadbolt 2 of door 1 from an unlocked to a locked position after a predefined period of time after opening of the door. The signals received from the accelerometer can either extend this time period or completely preventsmart lock 10 from lockingdeadbolt 2, as long as the door is being moved. Locking ofdeadbolt 2 can also be prevented when the signals of the accelerometer indicate that the door has come to a stop in an open position. -
Central unit 52 can also makesmart lock 10move deadbolt 2 towards a locked position when the signals received from the accelerometer indicate that there has been a contact between the door and the door frame, and the door has subsequently remained in a stationery condition. Then, an automatic locking of the door can be initiated. - The signals received from the accelerometer can also be used to "overrule" an automated locking sequence implemented in the smart lock. It is known that the smart lock automatically moves the deadbolt from an unlocked to a locked position at a predetermined point in time after it was unlocked (for example 5 seconds).
Central unit 52 can generate a delay signal which extends this time period as long as the signals received from the accelerometer indicate that either the door is still being moved or that the door has come to a stop in an open position. In both of these cases, it does not make much sense to move the deadbolt towards a locked position. - The signals received from the accelerometer can also be used to very conveniently make
smart lock 10lock deadbolt 2. It is possible that a user stores in central unit 52 a specific sequence of knocks on the door or on the smart lock. Should the central unit receive signals from the accelerometer which correspond to this sequence of knocks after having previously received signals which indicate that the door has been closed,smart lock 10 is commanded to movedeadbolt 2 into the locked position. It is thus possible for a user to close the door and knock on the door from the inside or outside with the predefined sequence so as to lock the door without any further steps.
Claims (10)
- A door lock actuation device (10) for operating a door lock, comprising a housing (12) having an interface side for being mounted on a door (1 ), an output element (16) adapted for cooperating with the door lock, a drive device (14) operatively connected to the output element (16), a control (22) for controlling operation of the drive device (14), a battery compartment (18) adapted for receiving at least one battery (20) which supplies the drive device (14) and the control (22), a battery cover (26) attached to the housing (12), the battery cover (26) being removable so as to allow access to the battery compartment (18), and a locking mechanism (32, 36) for locking the battery cover (26) to the housing (12), the locking mechanism (32, 36) being accessible only from the interface side of the housing (12); characterised in that:
the locking mechanism comprises a screw (36), and a support block (32) is formed integrally with the battery cover (26), the screw (36) extending through the support block (32), the screw (36) having a thread (38) that is threaded into the housing (12); and in that the screw (36) has a stepped thread (38, 40) with a first diameter at the tip of the screw and a second, larger diameter at the shaft of the screw, the first diameter thread (38) engaging into the housing (12) and the second diameter thread (40) engaging into the support block (32). - The door lock actuation device (10) of claim 1, wherein the screw (36) extends through an opening in the support block which is closed in a circumferential direction.
- The door lock actuation device (10) of claim 1 or claim 2, wherein the battery cover (26) is curved and comprises two locking tabs (28) at opposite ends, the locking tabs (28) engaging behind edges of the housing (12).
- The door lock actuation device (10) of claim 3, wherein the locking tabs (28) engaging behind the edges of the housing (12) extend over the entire width of the battery cover (26).
- The door lock actuation device (10) of any of the preceding claims, wherein an accelerometer (46) is provided in the housing (12).
- The door lock actuation device (10) of claim 5, wherein the accelerometer (46) is mounted on an auxiliary PCB connected to a main PCB (42) of the control (22).
- The door lock actuation device (10) of claim 6, wherein the auxiliary PCB is connected to the main PCB (42) by means of a plug connection.
- The door lock actuation device (10) of any of claims 5 to 7, wherein a communication module (48) is provided for sending signals provided by the accelerometer (46).
- The door lock actuation device (10) of claim 8, wherein the signals indicate at least one of the following situations:- a rotation of the smart lock about a horizontal axis,- a tilting of the smart lock about an axis which is perpendicular to the horizontal axis,- rotation of the door to which the smart lock is mounted,- vibrations resulting from an interaction with the smart lock,- shocks resulting from an interaction with the door,- stop of the door in an open position,- closing of the door,- a predefined sequence of knocks on the door or on the smart lock.
- An alarm installation comprising a central unit and a door lock actuation device (10) according to any of the preceding claims wherein the central unit is adapted for triggering an alarm if the accelerometer signals indicate that the door lock actuation device (10) is being tampered with.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP24150073.5A EP4325006A3 (en) | 2019-03-21 | 2020-03-16 | A door lock actuation device for operating a door lock and an alarm installation with such door lock actuation device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019107282.4A DE102019107282A1 (en) | 2019-03-21 | 2019-03-21 | Door lock operating device for operating a door lock and alarm system with such a door lock operating device |
PCT/EP2020/057154 WO2020187857A2 (en) | 2019-03-21 | 2020-03-16 | A door lock actuation device for operating a door lock and an alarm installation with such door lock actuation device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP24150073.5A Division EP4325006A3 (en) | 2019-03-21 | 2020-03-16 | A door lock actuation device for operating a door lock and an alarm installation with such door lock actuation device |
Publications (3)
Publication Number | Publication Date |
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EP3942125A2 EP3942125A2 (en) | 2022-01-26 |
EP3942125C0 EP3942125C0 (en) | 2024-01-03 |
EP3942125B1 true EP3942125B1 (en) | 2024-01-03 |
Family
ID=69903130
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP24150073.5A Pending EP4325006A3 (en) | 2019-03-21 | 2020-03-16 | A door lock actuation device for operating a door lock and an alarm installation with such door lock actuation device |
EP20712892.7A Active EP3942125B1 (en) | 2019-03-21 | 2020-03-16 | A door lock actuation device for operating a door lock and an alarm installation with such door lock actuation device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP24150073.5A Pending EP4325006A3 (en) | 2019-03-21 | 2020-03-16 | A door lock actuation device for operating a door lock and an alarm installation with such door lock actuation device |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP4325006A3 (en) |
CL (1) | CL2021002449U1 (en) |
DE (1) | DE102019107282A1 (en) |
PE (1) | PE20212037Z (en) |
WO (1) | WO2020187857A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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ES2956853A1 (en) * | 2022-05-24 | 2023-12-29 | Verisure Sarl | Electronic control lock (Machine-translation by Google Translate, not legally binding) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8325039B2 (en) * | 2010-02-25 | 2012-12-04 | Sargent Manufacturing Company | Locking device with embedded circuit board |
DE102011108945A1 (en) * | 2011-07-29 | 2013-01-31 | Sudhaus Gmbh & Co. Kg | Locking device for luggage and / or furniture pieces |
US9697664B2 (en) * | 2012-04-11 | 2017-07-04 | Digilock Asia Limited | Electronic locking systems, methods, and apparatus |
MX2014014315A (en) * | 2012-05-23 | 2015-08-10 | Schlage Lock Co Llc | Door lock sensor and alarm. |
US9695616B2 (en) * | 2013-03-15 | 2017-07-04 | August Home, Inc. | Intelligent door lock system and vibration/tapping sensing device to lock or unlock a door |
ITMI20130460A1 (en) * | 2013-03-27 | 2014-09-28 | Microhard Srl | DEVICE FOR DETECTING THE STATUS OF A DOOR OF GATES, GATES AND THE LIKE. |
DE202013103126U1 (en) * | 2013-07-12 | 2013-07-25 | ASTRA Gesellschaft für Asset Management mbH & Co. KG | Secure cover for the electronics area of a door fitting |
GB201516435D0 (en) * | 2015-09-16 | 2015-10-28 | Glue Together Ab | A smart lock |
CN207829628U (en) * | 2017-12-30 | 2018-09-07 | 安徽苏仕德物联传感技术有限公司 | A kind of smart lock having alarm function |
CN108266066B (en) * | 2018-02-12 | 2019-03-26 | 厦门美科安防科技有限公司 | A kind of novel electron cabinet lock |
-
2019
- 2019-03-21 DE DE102019107282.4A patent/DE102019107282A1/en active Pending
-
2020
- 2020-03-16 EP EP24150073.5A patent/EP4325006A3/en active Pending
- 2020-03-16 EP EP20712892.7A patent/EP3942125B1/en active Active
- 2020-03-16 PE PE2021001558U patent/PE20212037Z/en unknown
- 2020-03-16 WO PCT/EP2020/057154 patent/WO2020187857A2/en active Application Filing
-
2021
- 2021-09-21 CL CL2021002449U patent/CL2021002449U1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CL2021002449U1 (en) | 2022-04-08 |
EP4325006A2 (en) | 2024-02-21 |
DE102019107282A1 (en) | 2020-09-24 |
PE20212037Z (en) | 2021-10-21 |
EP3942125A2 (en) | 2022-01-26 |
WO2020187857A3 (en) | 2020-10-22 |
EP3942125C0 (en) | 2024-01-03 |
EP4325006A3 (en) | 2024-05-01 |
WO2020187857A2 (en) | 2020-09-24 |
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