WO2025201770A1

WO2025201770A1 - Deactivating wireless communication with an electronic lock

Info

Publication number: WO2025201770A1
Application number: PCT/EP2025/054949
Authority: WO
Inventors: Kenneth PERNYER
Original assignee: Assa Abloy AB
Current assignee: Assa Abloy AB
Priority date: 2024-03-28
Filing date: 2025-02-25
Publication date: 2025-10-02
Anticipated expiration: 2026-09-28

Abstract

It is provided a method for conditionally deactivating wireless communication with an electronic lock (12), the method being performed by an electronic lock (12) comprising a wireless key interface (30) and a second credential interface (32, 4), the method comprising: authenticating (40) using the second credential interface (32, 4); detecting (42) a user action using the second credential interface indicating a desire to deactivate the wireless key interface (30); and deactivating (44) the wireless key interface (30).

Description

DEACTIVATING WIRELESS COMMUNICATION WITH AN ELECTRONIC LOCK

TECHNICAL FIELD

[0001] The present disclosure relates to the field of electronic locks with multiple key interfaces, and in particular conditional deactivation of a wireless key interface based on user actions.

BACKGROUND

[0002] Locks have undergone significant evolution, transitioning from their traditional mechanical forms to more sophisticated electronic variants. This transformation has been driven by advancements in technology and changing security needs. Electronic locks, in particular, are becoming increasingly preferred for their enhanced features, including greater flexibility, improved control over access, and superior auditing capabilities, which allow for a comprehensive review of entry and exit records.

[0003] The operational principle of electronic locks involves assessing the legitimacy of access requests through communication with an electronic key. These electronic keys have evolved to embody a diverse range of formats, catering to the convenience and preference of users. They may take the form of key fobs, key cards, or even more advanced versions such as electronic keys equipped with a blade for a conductive connection with the electronic lock. Additionally, the integration of electronic keys into smartphone applications represents a significant leap forward, combining convenience with advanced security features.

[0004] Despite these advancements, electronic locks face the ongoing challenge of maintaining compatibility with a wide array of electronic key types. In addition, it would be of great benefit if the multiple interfaces for electronic keys is not only an inconvenience in implementation, but could also be used for enhancing the user experience.

SUMMARY

[0005] One object is to provide an electronic lock with multiple interfaces for electronic keys that exploits this plurality for benefit of the user. [0006] According to a first aspect, it is provided a method for conditionally deactivating wireless communication with an electronic lock, the method being performed by an electronic lock comprising a wireless key interface and a second credential interface being a physical key interface. The method comprises: authenticating using the second credential interface, which comprises authenticating an electronic key conductively connected of the physical key interface; detecting a user action using the second credential interface indicating a desire to deactivate the wireless key interface; and deactivating the wireless key interface. The detecting a user action comprises detecting one of a first user action and a second user action, wherein the first user action and the second user action are distinct, wherein the duration that the wireless key interface is deactivated depends on whether the user action is detected to be the first user action or the second user action.

[0007] The user action may comprise that the user turns the electronic key, inserted into a socket of the physical key interface, a predefined number of times within a threshold duration.

[0008] The user action may comprise that the user turns the electronic key from an initial position to a rotated position, and holds the electronic key in the rotated position longer than a threshold duration.

[0009] The user action may comprise that the user inserts the electronic key, into the socket of the physical key interface, a predefined number of times within a threshold duration.

[0010] The first user action may be that the user turns the electronic key, inserted into a socket of the physical key interface, a predefined number of times within a threshold duration, and the second user action is that the user turns the electronic key, inserted into a socket of the physical key interface, three times within a threshold duration.

[0011] The first user action may be that the user turns the electronic key from an initial position to a rotated position, and holds the electronic key in the rotated position longer than a first threshold duration and the second user action is that the user turns the electronic key from an initial position to a rotated position, and holds the electronic key in the rotated position longer than a second threshold duration.

[0012] The method may further comprise: notifying the user that the wireless key interface is deactivated.

[0013] The notifying may comprise activating a light emitting diode, LED, of the electronic lock.

[0014] The notifying may comprise emitting a sound or vibration to the user.

[0015] The notifying may comprise triggering a notification on a mobile phone of the user.

[0016] According to a second aspect, it is provided an electronic lock for conditionally deactivating wireless communication with the electronic lock. The electronic lock comprises: a wireless key interface; a second credential interface being a physical key interface; processing circuitry; and memory circuitry storing instructions that, when executed by the processing circuitry, cause the electronic lock to: authenticate using the second credential interface which comprises authenticating an electronic key conductively connected of the physical key interface; detect a user action using the second credential interface indicating a desire to deactivate the wireless key interface; and deactivate the wireless key interface. The instructions to detect a user action comprise instructions that, when executed by the processing circuitry, cause the electronic lock to detect one of a first user action and a second user action, wherein the first user action and the second user action are distinct, wherein the duration that the wireless key interface is deactivated depends on whether the user action is detected to be the first user action or the second user action.

[0017] According to a third aspect, it is provided a computer program for conditionally deactivating wireless communication with the electronic lock. The computer program comprises computer program code which, when executed on an electronic lock comprising a wireless key interface, and a second credential interface being a physical key interface, causes the electronic lock to: authenticate using the second credential interface which comprises authenticating an electronic key conductively connected of the physical key interface; detect a user action using the second credential interface indicating a desire to deactivate the wireless key interface; and deactivate the wireless key interface. The computer program code to detect a user action comprises computer program code which, when executed on an electronic lock, causes the electronic lock to detect one of a first user action and a second user action, wherein the first user action and the second user action are distinct, wherein the duration that the wireless key interface is deactivated depends on whether the user action is detected to be the first user action or the second user action.

[0018] According to a fourth aspect, it is provided a computer program product comprising a computer program according to the third aspect and a computer readable means comprising non-transitory memory in which the computer program is stored.

[0019] Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/an/the element, apparatus, component, means, step, etc." are to be interpreted openly as referring to at least one instance of the element, apparatus, component, means, step, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Aspects and embodiments are now described, by way of example, with reference to the accompanying drawings, in which:

[0021] Fig 1 is a schematic diagram showing an environment in which embodiments presented herein can be applied;

[0022] Fig 2 is a schematic diagram illustrating sections of the electronic lock of Fig 1;

[0023] Fig 3 is a schematic diagram illustrating the mechanical interface of the electronic lock of Figs 1 and 2; [0024] Fig 4 is a schematic diagram illustrating a mechanical lock structure configured to interoperate with the electronic lock of Figs 1-2;

[0025] Fig 5 is mechanical lock structure can be included in a lock case;

[0026] Figs 6A-B are schematic diagrams illustrating how the lock cylinder section of Fig 2 fits into a recess;

[0027] Fig 7 is a schematic diagram illustrating components of the wireless key interface of the electronic lock of Fig 6;

[0028] Fig 8 is a schematic diagram illustrating interaction between an electronic key and the physical key interface of the electronic lock of Fig 6;

[0029] Fig 9 is a schematic diagram illustrating components of the external section and the lock cylinder section of the electronic lock of Figs 1-2;

[0030] Fig 10 is a flow chart illustrating embodiments of methods for deactivating a wireless key interface;

[0031] Fig 11 is a schematic diagram illustrating components of the electronic lock of Fig 1;

[0032] Fig 12 shows one example of a computer program product 90 comprising computer readable means;

[0033] Fig 13 is a schematic diagram illustrating placement of the socket in relation to the loop antenna of the external section of the electronic lock of Fig 7;

[0034] Figs 14A-C are schematic diagrams illustrating embodiments of code input interface that can be applied with the electronic lock of Fig 1; and

[0035] Fig 15 is a schematic diagram illustrating some components of the electronic lock of Figs 1-2 according to one embodiment. DETAILED DESCRIPTION

[0036] The aspects of the present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the invention are shown. These aspects may, however, be embodied in many different forms and should not be construed as limiting; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and to fully convey the scope of all aspects of invention to those skilled in the art. Like numbers refer to like elements throughout the description.

[0037] According to embodiments presented herein, it is provided an electronic lock where the user can deactivate a wireless key interface of the electronic lock, for a lock that includes a wireless key interface as well as a second credential interface, for authenticating a user or an electronic key. The second credential interface can be a physical key interface or a code input interface. Conveniently, the user uses the second credential interface, e.g. an electronic key for the physical key interface, or entering a special (e.g. predefined) deactivation code on the code input interface, for indicating that the wireless key interface is to be deactivated. This provides an intuitive and convenient way for the user to deactivate the wireless interface, improving the security of the electronic lock by at least temporarily limiting the options of unlocking the lock. The result is a convenient manner to provide multi-level protection using the electronic lock. Using embodiments presented herein, the user can conveniently select which one of two different deactivation durations should apply for the deactivation. For instance, the first user action can result in a deactivation duration of one hour, while the second user action can result in a deactivation duration of 24 hours. This provides a flexible way to control the status of a wireless key interface of an electronic lock.

[0038] Fig 1 is a schematic diagram showing an environment in which embodiments presented herein can be applied. Access to a physical space 16 is restricted by an openable physical barrier 15 which is selectively unlockable. The physical barrier 15 stands between the restricted physical space 16 and an accessible physical space 14. Note that the accessible physical space 14 can be a restricted physical space in itself, but in relation to this physical barrier 15, the accessible physical space 14 is accessible. The barrier 15 can be a door, gate, hatch, cabinet door, drawer, window, etc. In order to control access to the physical space 16, by selectively unlocking the barrier 15, an electronic lock 12 is provided.

[0039] The electronic lock 12 can be provided in the barrier 15 itself (as shown) or the electronic lock 12 in a structure 11, such as a wall, surrounding the barrier 15 (not shown). The electronic lock 12 is controllable to be in a locked state or in an unlocked state. When the electronic lock 12 is set in an unlocked state, the electronic lock 12 enables interaction with a mechanical lock structure to open the door, e.g. by retracting a locking bolt or latch, as described in more detail with reference to Figs 4 and 5 below. This interaction with the mechanical lock structure can be based on a user action or based on a motor.

[0040] Hence, when the electronic lock 12 is in an unlocked state, the barrier 15 can be opened and when the electronic lock 12 is in a locked state, the barrier 15 cannot be opened. In this way, access to a restricted physical space 16 is controlled by the electronic lock 12.

[0041] A user 5 carries an electronic key 2 for communication with the electronic lock 12. The electronic key 2 is able to communicate with the electronic lock 12 wirelessly or conductively. Accordingly, the electronic lock 12 is provided with both a wireless key interface 30 and a second credential interface, e.g. a physical key interface 32 or a code input interface 4, as described in more detail below. The electronic key 2 can be provided in any suitable format that allows an access control device to communicate with the electronic key to evaluate whether to grant access. For instance, the electronic key 2 can be in the form of a key fob, a key card, an electronic key with a blade for conductive connection, or the electronic key 2 can be embedded in a smartphone. Depending on the access rights for the electronic key 2, it can be used to unlock the electronic lock 12. It is to be noted that, while only one electronic key 2 and user 5 are shown in Fig 1, there can be any suitable number of users with respective electronic keys that are usable with the electronic lock 12.

[0042] Fig 2 is a flow chart illustrating embodiments of methods for deactivating a wireless key interface. The method is performed by an electronic lock 12 comprising a wireless key interface 30 and a second credential interface, such as a physical key interface 32 or a code input interface 4.

[0043] In an authenticate using 2^nd interface step 40, the electronic lock 12 authenticates using the second credential interface. The authentication can be an authentication an electronic key (2) conductively connected of the physical key interface (32), or authentication of user knowledge of an access code entered using the code input interface 4.. Optionally, this step also comprises authorising the electronic key 2, i.e. once authenticated, checking if the electronic key 2 is authorised to perform actions of the electronic lock 12, including deactivation of the wireless key interface. Optionally, the authorisation is integrated and/or implicit with the authentication.

[0044] In a detect user action using 2^nd interface step 42, the electronic lock 12 detects a user action using the second credential interface indicating a desire to deactivate the wireless key interface 30. The user action can e.g. be a user action of the electronic key (2). Alternatively, the user action is a user action using the code input interface 4, such as entering a predefined access code for deactivation. Such as a predefined access code is not the same as a normal access code for gaining access to the restricted physical space 16. It is to be noted that this step can be performed before or after the authenticate using 2^nd interface key step 40. The user action is predefined, such that the electronic lock 12 can determine the purpose of the user action, i.e. in this case, to deactivate the wireless key interface 30. The user action is an action that the user 5 performs by interacting with the electronic key 2. This interaction can be performed by turning the electronic key 2, once inserted in the socket of the physical key interface 32, or by interacting with a user interface of the electronic key 2 itself.

[0045] When the interaction is performed by turning the projection object 3, the interaction is different than a normal turning of the electronic key 2 which is performed to unlock the electronic lock 12. In one embodiment, the user action comprises that the user turns the electronic key 2, inserted into the socket 33 of the physical key interface 32, twice within a threshold duration. This can be thought of as a double turn of the electronic key 2, analogous to a double click of a mouse button of a computer. Such a user action is intuitive once the user is aware of this particular interaction. [0046] In one embodiment, the user action comprises that the user turns the electronic key 2 (when inserted in the socket 33 of the physical key interface 32) from an initial position to a rotated position, and holds the electronic key 2 in the rotated position longer than a threshold duration. This threshold duration is not the same as other threshold durations mentioned herein. The initial position can be a vertical position of the key blade, and the rotated position can be a rotation of the electronic key 2 from the vertical position (either clockwise or anti-clockwise) to an end position where the electronic key 2 cannot be turned further. This user action can be thought of as a long press of the electronic key 2, analogous to a long press of a push button or a long press on a touch screen which is commonly used. Also this user action is intuitive once the user is aware of such interaction.

[0047] In one embodiment, the user action comprises that the user inserts the electronic key 2, into the socket 33 of the physical key interface 32, a predefined number of times within a threshold duration. This threshold duration is not the same as other threshold durations mentioned herein. This user action also resembles the concept of a double click and is easy for the user to perform. The predefined number of times can be hardcoded, e.g. to two times. Alternatively the predefined number of times, and/ or the threshold duration are configurable by the user.

[0048] In one embodiment, there are two different user actions that the user can perform using the electronic key 2. In this case, the detecting a user action thus comprises detecting one of a first user action and a second user action. The first user action and the second user action are distinct and distinguishable from each other by the electronic lock 12. This distinction can be used such that the duration that the wireless key interface 30 is deactivated (here denoted as a deactivation duration) depends on whether the user action is detected to be the first user action or the second user action. In this way, the user can conveniently select which one of two different deactivation durations should apply for the deactivation. For instance, the first user action can result in a deactivation duration of one hour, while the second user action can result in a deactivation duration of 24 hours. Any other combination of deactivation durations is possible, including an indefinite deactivation duration, where the wireless key interface 30 is deactivated until it is actively activated again. The different deactivation durations and their association with the first and second user actions can be predefined during production and/ or can be configured by the user, e.g. using a smartphone in communication with the electronic lock 12 .

[0049] In one embodiment, the first user action is that the user turns the electronic key 2, inserted into a socket 33 of the physical key interface 32, a predefined number of times within a threshold duration, and the second user action is that the user turns the electronic key 2, inserted into a socket 33 of the physical key interface 32, three times within a threshold duration. The predefined number of times can be hardcoded, e.g. to two times. Alternatively the predefined number of times, and/or the threshold duration are configurable by the user.

[0050] In one embodiment, the first user action is that the user turns the electronic key 2 from an initial position to a rotated position, and holds the electronic key 2 in the rotated position longer than a first threshold duration and the second user action is that the user turns the electronic key 2 from an initial position to a rotated position, and holds the electronic key 2 in the rotated position longer than a second threshold duration. The second threshold duration can be longer than the first threshold duration.

[0051] For the two embodiments mentioned above, the first user action can be associated with a deactivation duration, that is shorter than the deactivation duration associated with the second user action, to be in congruence with the slightly more engaged user action of the second user action compared to the first user action.

[0052] In a deactivate wireless key interface step 44, the electronic lock 12 deactivates the wireless key interface 30. The deactivation of the wireless key interface 30 is triggered by the detection of the user action in the detect user action using 2^nd interface step 42. Prior to performing this step 44, the authenticate using 2^nd interface step 40 has been performed, to ensure that the electronic key 2 is allowed to perform the deactivation of the wireless key interface 30. When deactivated, any electronic keys that rely on wireless communication with the electronic lock 12 cannot be used to unlock the electronic lock 12. This can be performed by disabling the antenna and/or the transceiver of the wireless key interface 30. Alternatively or additionally, the wireless key interface 30 is disconnected from the rest of the electronic lock 12. Alternatively or additionally, the electronic lock 12 is configured to ignore communication over the wireless key interface 30.

[0053] In an optional notify deactivation step 46, the electronic lock 12 notifies the user that the wireless key interface 30 is deactivated. This step 46 is performed based on the deactivation of the wireless key interface 30 having been performed, or at least is determined to be performed. The notification provides user feedback, which makes the user experience the process of deactivating the wireless key interface 30 more reliable. The notification can also assist in informing the user of this functionality and how it is activated.

[0054] In one embodiment, the notifying comprises activating a light emitting diode (LED) of the electronic lock 12. The LED can e.g. be of a specific colour and/or blinking pattern to distinguish the deactivation from conventional access granted and access denied.

[0055] Alternatively or additionally, the notifying comprises emitting a sound or vibration to the user 5. The sound or vibration can be provided from the electronic lock 12 and/ or a handle.

[0056] Alternatively or additionally, the notifying comprises triggering a notification on a mobile phone of the user 5. The electronic lock 12 then communicates with the mobile phone of the user, either directly or via a server that triggers an application of the mobile phone to perform the notification. The notification can include visual notification, sound notification and/ or vibration notification.

[0057] Figs 3-10 illustrate possible embodiments of the electronic lock 12 with different interfaces for interacting with the electronic key 2.

[0058] Fig 3 is a schematic diagram illustrating sections of the electronic lock 12 of Fig 1. The electronic lock 12 comprises an external section 24 and a lock cylinder section 20. The purpose of these sections is described in more detail below with reference to Figs 6A-B. [0059] Fig 4 is a schematic diagram illustrating the mechanical interface of the electronic lock according to one embodiment. This will be described with reference also to Fig 5, which is a schematic diagram illustrating how a mechanical lock structure 21 is configured to interoperate with the electronic lock 12 of Fig 1, according to one embodiment. The mechanical lock structure 21 does not need to be provided only for interaction with electronic locks; the mechanical lock structure 21 can generic per se and could also interact with traditional mechanical lock cylinders. Nevertheless, embodiments presented herein are related to electronic locks.

[0060] In Fig 4, the view is from the back, i.e. towards a back end (provided on an interior side of the electronic lock 12) of the lock cylinder section 20, i.e. looking left from the right-hand side of Fig 3 towards the lock cylinder section 20. The end of the lock cylinder section 20 is provided with a protrusion 27, here in the form of a thin rectangular protrusion, similar to a classic screwdriver. A casing 28 of the lock cylinder section 20 is static, and the protrusion 27 can rotate, when the electronic lock 12 is in an unlocked state, based on user movement or based on rotation of a motor (denoted as a second motor 39 below, see Fig 10 and corresponding text) within the electronic lock 12 that is triggered to rotate when the electronic lock 12 is unlocked.

[0061] Looking now to Fig 5, a lock case 50 is mounted e.g. in the barrier 15 (or in the surrounding structure 11) of Fig 1. The lock case 50 comprises a mechanical lock structure 21 that can mechanically interact with the protrusion 27. For instance, the mechanical lock structure 21 can comprise a recess into which the protrusion 27 is inserted when the electronic lock 12 is installed. Optionally, the mechanical lock structure 21 comprises a cross of recesses (as shown) to simplify installation. When the protrusion 27 of the electronic lock 12 rotates, this causes the mechanical lock structure 21 to rotate, which can be translated (as known in the art per se, e.g. using a cam and follower or a rack and pinion mechanism) to a linear action of a locking member 52. The locking member 52 can e.g. be in the form of a locking bolt or a latch. For unlocking, the locking member 52 can be retracted into the lock case 50 (in a negative direction along the x-axis) and for locking, the locking member 52 can be extended outwards (in a positive direction along the x-axis) from the lock case 50. [0062] Hence, through the mechanical interaction between the protrusion 27 and the mechanical lock structure 21, when the electronic lock 12 is unlocked, a rotational motion on the outside of the door 15 (e.g. of an electronic key 2 with a blade or by rotating the external section 24) causes the locking member to retract 52, after which the barrier 15 can be opened.

[0063] In this way, the electronic lock 12 can be installed in a traditional recess for lock cylinders, while the external section 24 provides a larger form factor for housing additional components and providing a loop antenna of a larger dimension.

[0064] Figs 6A-B are schematic diagrams illustrating how the lock cylinder section 20 of Fig 3 fits into a recess 22. Looking first to Fig 6A, it can be seen how the barrier 15 comprises a recess 22. The shape of the recess 22 corresponds to the shape of the lock cylinder section 20 of the electronic lock 12. Even though the recess 22 is here shown (in its cross-section) as a circular recess, the recess can be of any suitable shape, including oblong shapes, complex shapes of circular or oval shapes and rectangular shapes, etc. Often, each country has a limited number of standard shapes for cylinders.

[0065] The recess and the mechanical lock structure 21 have corresponding cross- sectional shapes, allowing the lock cylinder section 20 of the electronic lock 12 to be inserted into the recess 22, as shown in Fig 6B. When the lock cylinder section 20 is inserted into the recess 22, the external section 24 remains external to the recess 22. In one embodiment, the outer shell of the external section 24 makes up a rotatable section 25. When the electronic lock 12 is in an unlocked state, the user can rotate the rotatable section 25, causing the protrusion 27 to interact with the mechanical lock structure 21 to enable opening of the barrier 15. Hence, in this embodiment, the external section 24 comprises a rotatable section 25, such that only when the electronic lock 12 is unlocked, a rotation of the rotatable section causes a rotational mechanical interaction with the mechanical lock structure 21.

[0066] On a general level, the lock cylinder section 20 is thus configured to mechanically interact with the mechanical lock structure 21, and the lock cylinder section 20 is configured to be located, when the electronic lock 12 is installed, within the recess 22. In contrast, the external section 24 is configured to be located, when the electronic lock 12 is installed, outside the recess 22.

[0067] Fig 7 is a schematic diagram illustrating the key interfaces of the electronic lock 12 of Fig 1. As explained above, the electronic lock 12 comprises both the wireless key interface 30 and the physical key interface 32.

[0068] The wireless key interface 30 enables the electronic lock 12 to receive power from the electronic key 2 as well as to communicate with the electronic key 2.

[0069] The physical key interface 32 comprises a socket comprising lock connectors that enable a direct physical connection between the lock connectors and corresponding key connectors of the electronic key 2, see Fig 9 and corresponding description below for more details. The physical key interface 32 enables the electronic lock 12 to receive power from the electronic key 2 and to communicate with the electronic key 2.

[0070] By providing both interfaces, the electronic lock 12 supports both electronic keys 2 based on wireless communication with the electronic lock 12 and electronic keys 2 based on a physical conductive interface with the electronic lock 12.

[0071] Fig 8 is a schematic diagram illustrating components of the wireless key interface 30 of the electronic lock 12 of Fig 7. The wireless key interface 30 comprises a transceiver 29 and a loop antenna 31, for communicating with the electronic key 2. The wireless key interface 30 can support any suitable wireless communication protocol for local wireless communication, e.g. NFC (near-field communication), RFID (radio frequency identification), BLE (Bluetooth low energy), etc.

[0072] Fig 9 is a schematic diagram illustrating interaction between an electronic key 2 and the physical key interface 32 of the electronic lock 12 of Fig 7. The electronic key 2 comprises key connectors 35a-b provided on a blade 13. The key connectors 35a-b are electrically insulated from each other. One of the key connectors can be conductively connected to, or form part of, the blade 13. The physical key interface 32 (of the electronic lock 12) comprises a socket 33 with a first lock connector 34a and a second lock connector 34b. The first lock connector 34a is positioned such that, when the electronic key 2 is inserted in the socket 33, the first lock connector 34a makes a direct physical (and conductive) connection with the first key connector 35a. Analogously, the second lock connector 34b is positioned such that, when the electronic key 2 is inserted in the socket 33, the second lock connector 34b makes a direct physical (and conductive) connection with the second key connector 35b.

[0073] This arrangement provides a dual terminal connection between the electronic key 2 and the physical key interface 32 of the electronic lock 12 when the electronic key 2 is inserted in the socket 33 of the physical key interface 32. The dual terminal connection is used both for communication between the electronic key 2 and the electronic lock 12 and for powering the electronic lock 12 by transferring electric power from a power supply of the electronic key 2 to the electronic lock 12. Alternatively, separate connectors (not shown) can be provided for powering the electronic lock 12 and communication between the electronic key 2 and the electronic lock 12.

[0074] Only when the electronic lock 12 is unlocked, a rotation of the electronic key 2 within the socket 33 causes a rotational mechanical interaction with the mechanical lock structure 21.

[0075] Optionally, the physical key interface 32 is provided within the external section 24. This prevents any physical interface with the outside world within the lock cylinder section 20, reducing a risk of an attacker physically manipulating the interior of the lock cylinder section 20 to attempt to gain illegitimate access to the restricted physical space 16.

[0076] Fig 10 is a schematic diagram illustrating components of the external section 24 and the lock cylinder section 20 of the electronic lock 12 of Fig 1.

[0077] The lock cylinder section 20 comprises an access controller 36. The access controller 36 is configured to grant access for an electronic key 2 that is authorised, based on communication between the electronic lock 12 and the electronic key 2 over either one of the wireless key interface 30 and the physical key interface 32. The access controller 36 is configured to enable interaction, using the lock cylinder section 20, with the mechanical lock structure 21 based on granting access. In one embodiment, the access controller 36 is provided in the lock cylinder section 20 which is inside the recess 22, providing improved protection from physical tampering by an attacker.

[0078] Optionally, the electronic lock 12 comprises a first motor 37. In this case, the access controller 36 is configured to activate the first motor 37, when the access controller 36 decides to grant access, to enable the mechanical interaction with the mechanical lock structure 21 based on granting access. In other words, the first motor 37 can connect or disconnect a connection between the rotatable member and the mechanical lock structure 21, e.g. by retracting or extending one or more pins. In one embodiment, the first motor 37 is provided in the lock cylinder section 20. Since the lock cylinder section 20 is more physically protected from physical attacks, and the first motor 37 effectuates the granted access, it is more secure to provide the first motor 37 in the lock cylinder section 20.

[0079] The external section 24 optionally comprises a power controller 38 that is configured to control the transfer of power received over the wireless key interface 30 and/ or the physical key interface 32 to the access controller 36. The power controller 38 thereby routes power from the key interface used, regardless of whether it is the wireless key interface 30 or the physical key interface 32, to power the access controller 36.

[0080] Since, the power controller is not directly involved in access decisions, the power controller 38 can be provided in the external section 24 to save space in the lock cylinder section 20, where the available space is defined by the recess 22 into which the external section 24 should fit.

[0081] Optionally, the electronic lock 12 comprises a second motor 39. In this case, the access controller 36 is configured to activate the second motor 39 to perform rotational mechanical interaction with the mechanical lock structure 21 based on granting access. In order to allow opening of the door, the mechanical interaction with the mechanical lock structure 21 is also needed. Hence, access to control the second motor 39 is not sufficient to unlock the electronic lock 12.

[0082] In one embodiment, the second motor 39 is provided in the external section

24. Since, access to the second motor 39 does not compromise the electronic lock 12 per se, the second motor 39 can be provided in the external section 24 to save space in the lock cylinder section 20, where the available space is defined by the recess 22 into which the external section 24 should fit.

[0083] Fig 11 is a schematic diagram illustrating components of the electronic lock 12 of Fig 1. Processing circuitry 60 is provided using any combination of one or more of a suitable central processing unit (CPU), graphics processing unit (GPU), multiprocessor, neural processing unit (NPU), microcontroller, digital signal processor (DSP), etc., capable of executing software instructions 67 stored in memory circuitry 64, which can thus be a computer program product. The processing circuitry 60 could alternatively be implemented using an application specific integrated circuit (ASIC), field programmable gate array (FPGA), etc. The processing circuitry 60 can be configured to execute the method described with reference to Fig 2 above.

[0084] The memory circuitry 64 can be any combination of random-access memory (RAM) and/or read-only memory (ROM). The memory circuitry 64 also comprises non- transitory persistent storage, which, for example, can be any single one or combination of magnetic memory, optical memory, solid-state memory or even remotely mounted memory.

[0085] A data memory 66 is also provided for reading and/ or storing data during execution of software instructions in the processing circuitry 60. The data memory 66 can be any combination of RAM and/or ROM.

[0086] The electronic lock 12 further comprises an I/O interface 62 for communicating with external and/or internal entities. Optionally, the I/O interface 62 also includes a user interface.

[0087] An I/O interface 62 is provided for communicating with external and/ or internal entities. For instance, the I/O interface 62 logically comprises the wireless key interface 30 and the physical key interface 32.

[0088] Other components of the electronic lock 12 described elsewhere are omitted here. [0089] Fig 12 shows one example of a computer program product 90 comprising computer readable means. On this computer readable means, a computer program 91 can be stored in a non-transitory memory. The computer program can cause processing circuitry to execute a method according to embodiments described herein. In this example, the computer program product 90 is in the form of a removable solid-state memory, e.g. a Universal Serial Bus (USB) drive. As explained above, the computer program product could also be embodied in a memory of a device, such as the computer program product 64 of Fig 11. While the computer program 91 is here schematically shown as a section of the removable solid-state memory, the computer program can be stored in any way which is suitable for the computer program product, such as another type of removable solid-state memory, or an optical disc, such as a CD (compact disc), a DVD (digital versatile disc) or a Blu-Ray disc.

[0090] Fig 13 is a schematic diagram illustrating placement of the socket in relation to the loop antenna 31 of the external section 24 of the electronic lock 12 of Fig 7. The loop antenna 31 is provided close to the edge of the external section 24 to improve antenna efficiency in the given space. The socket 33 is provided inside loops of the loop antenna 31, where there is available space. This arrangement is space efficient, while providing a large loop antenna for improved antenna efficiency. In order to save space and improve efficiency of radio communication, a loop antenna for the wireless key interface is provided in the external section, and a socket for the physical key interface is provided inside loops of the loop antenna. By transferring power over the wireless key interface or physical key interface, the electronic lock does not need any other power supply, such as a battery or wired power.

[0091] Figs 14A-C are schematic diagrams illustrating embodiments of code input interface 4 that can be applied with the electronic lock 12 of Fig 1. The views of Fig 14A- C are towards an exposed side of the external section 24. A rotatable member 6 is provided around a circular outer section of the external section 24. When the user wants to use the code input interface, the user rotates the rotatable member 6. This mechanical rotation is converted to electrical energy using an energy converter 8, to thereby power the code input interface 4 as well as an access controller 36. An energy storage device 7 can be used as temporary storage or a buffer of electrical energy. In this way, the electronic lock does not need to have any battery or external power supply for operating the code input interface 4.

[0092] Looking first to Fig 14A, the code input interface 4 is here provided as a touch interface, thereby enabling the user 5 to input the access code. A centre section 70 comprises indications of code elements for user input, here in the form of digits. The user 5 enters a code by sequentially touching the centre section 70 at the location of the code elements that are to be entered. In this embodiment, the centre section 70 can be rotatably fixed or can rotate along with the rotatable member 6.

[0093] Looking now to Fig 14B and Fig 14C, the code input interfaces 4 are here provided using the rotatable member 6, such that the user 5 can rotate the rotatable member 6 to input the access code. In this way, rotation of the rotatable member not only powers the code input interface 4 and the access controller 36, but is also used in parallel to input the access code.

[0094] In Fig 14B, an indicator 71 is printed, embossed, debossed, or otherwise visible indication provided on the rotatable member, and indications of code elements are provided on the (rotatably fixed) centre section. The user then rotates the rotatable member 6 to a position such that the indicator 71 is provided at a position corresponding to the desired code element. This procedure is repeated until all code elements have been entered.

[0095] In Fig 14C, an indicator 71 is provided on the (rotatably fixed) centre section 70, and indications of code elements are provided on the rotatable member 6. Again, the user then rotates the rotatable member 6 to a position such that the desired code element is provided at a position corresponding to the indicator 71 . This procedure is repeated until all code elements have been entered.

[0096] Optionally the code input interface 4 further comprises a user output device. In this case, the electronic lock 12 is configured to emit a user notification using the user output device based on sufficient energy from the energy converter 8 being stored in the energy storage device 7, for powering the code input interface 4 to accept user input for the access code, and for powering the access controller 36 to grant or deny access. The user output device can comprise a light source. Alternatively or additionally, the user output device comprises a sound source, such as a beeper or similar.

[0097] The user notification informs the user that the rotatable member 6 has been rotated sufficiently for code input to be possible. In this way, the user knows when no more turning of the rotatable member 6 is needed. In one embodiment, the user input device is provided as a background light that illuminates the code elements, which also simplifies access code input for the user, especially in conditions with low levels of ambient light.

[0098] In one embodiment, when a first level of energy has been stored, sufficient for enabling the code input interface and the access controller 36, the user output device gives a first user indication. When a second level of energy has been stored (which is more than the first level of energy), to a level that is sufficient for enabling the code input interface 4 and the access controller 36, as well as for powering the background light (when provided), a second of user indication is provided using the user output device. The first user indication can e.g. be a beep, a blinking light-emitting diode (LED), and/or activation of the background lighting. The second user indication can of the same type or be of another type of beep (other pitch, length and/or repetition pattern), another type of LED blinking (other colour, length of illumination and/ or repetition pattern), and/or activation of the background lighting.

[0099] In one embodiment, when the first level of energy has been stored, sufficient for enabling the code input interface and the access controller 36, the user output device gives a user indication. The user can then input an access code for access evaluation. If access is granted, a second turn of the rotatable member 6 causes the electronic lock 12 be unlocked. The coupling between the rotatable member 6 and unlocking can be mechanical, i.e. upon access being granted, the rotatable member 6 is mechanically connected to the mechanical interface for causing the mechanical lock structure 21 to unlock. Alternatively, the coupling between the rotatable member 6 and unlocking can be via the energy converter, whereby electrical energy is stored that is used to power a motor (denoted second motor 39 below) to rotate the mechanical interface for causing the mechanical lock structure 21 to unlock. Optionally, regardless whether the coupling between tor rotatable member 6 and the mechanical lock structure is mechanical or via the energy converter, the output device gives a user indication when the lock has fully opened, e.g. when a locking bolt has retracted sufficiently for the door to be opened. This can be based on a proximity sensor (or other sensor) detecting when the locking bolt has retracted.

[0100] The various user outputs provide intuitive feedback to the user that enables an even more efficient user interface.

[0101] Using the rotatable member 6 and energy converter, the code input interface can be provided while being powered by a simple user rotation of the rotatable member. Hence, no battery or external power source is needed for using the code input interface 4. As described in more detail below, the wireless interface is powered by the electronic key 2, whereby also this credential interface is provided without the need for battery power or an external power source. The resulting electronic lock supports access control using an electronic key as well as using an access code, while being independent from external power sources or batteries.

[0102] Fig 15 is a schematic diagram illustrating some components of the electronic lock of Figs 1-2 according to one embodiment. The electronic lock 12 comprises both the wireless key interface 30 and the code input interface 4.

[0103] The wireless key interface 30 enables the electronic lock 12 to receive power from the electronic key 2 as well as to communicate with the electronic key 2. The code input interface 4 allows the user to input an access code for access evaluation. An energy converter 8 is provided for converting mechanical energy from the rotatable member 6 to electric energy. The energy converter 8 can e.g. be a transformer of one or more phases, combined with an AC/DC (alternating current/ direct current) converter. The electrical energy from the energy converter 8 can be stored in an energy storage device 7. The energy storage device 7 can e.g. be implemented using any one or more of a capacitor, supercapacitor, etc. The energy storage device 7 could also be provided as a rechargeable battery, also known as a secondary cell battery. In such a case, it is to be noted that the rechargeable battery is fundamentally different from a single-use battery (also known as primary cell battery) which needs to be replaced by a person when depleted. The from the energy converter 8, optionally via the energy storage device 7, is used to power an access controller 36 and the code input interface 4. It is to be noted that the energy storage device 7 can also be used in conjunction with energy transfer over the wireless key interface 30. The energy storage device 7 is configured to store energy for powering the code input interface 4 to accept user input for the access code, and for powering the access controller 36 to grant or deny access. In other words, by the energy converter 8 converting mechanical energy from the user action of the rotatable member and storing this energy in the energy storage device 7, sufficient electrical energy is obtained and stored in the energy storage device 7 to power the electronic lock to accept access code input, to evaluate the access code input and to, when access is granted, unlock the electronic lock.

[0104] The access controller 36 is configured to grant access based on communication with the electronic key 2 or based on an access code input by a user into the code input interface 4. The access controller 36 is configured to enable interaction, using the lock cylinder section 20, with the mechanical lock structure 21 based on granting access. In one embodiment, the access controller 36 is provided in the lock cylinder section 20 which is inside the recess 22, providing improved protection from physical tampering by an attacker.

[0105] By providing both interfaces, the electronic lock 12 supports both electronic keys 2 based on wireless communication with the electronic lock 12 and access evaluation based on an access code input by a user 5, both provided without the need to use batteries or other external power sources.

[0106] Here now follows a list of embodiments from another perspective, enumerated with roman numerals.

[0107] i. An electronic lock comprising: a lock cylinder section configured to mechanically interact with a mechanical lock structure, wherein the lock cylinder section is configured to be located, when the electronic lock is installed, within a recess; an external section configured to be located, when the electronic lock is installed, outside the recess; a wireless key interface, comprising a loop antenna, provided in the external section, the wireless key interface enabling the electronic lock to receive power from the electronic key and to communicate with the electronic key; a physical key interface comprising a socket comprising lock connectors enabling a direct physical connection between the lock connectors and corresponding key connectors of the electronic key, wherein the physical key interface enables the electronic lock to receive power from the electronic key and to communicate with the electronic key, wherein the socket is provided inside loops of the loop antenna; and an access controller configured to grant access for an electronic key that is authorised, based on communication between the electronic lock and the electronic key over either one of the wireless key interface and the physical key interface, and wherein the access controller is configured to enable interaction, using the lock cylinder section, with the mechanical lock structure based on granting access.

[0108] ii. The electronic lock according to embodiment i, further comprising a power controller configured to control the transfer of power received over the wireless key interface and/or the physical key interface to the access controller, wherein the power controller is provided in the external section.

[0109] hi. The electronic lock according to embodiment i or ii, wherein the access controller is provided in the lock cylinder section.

[0110] iv. The electronic lock according to any one of the preceding embodiments, wherein the external section comprises a rotatable section, such that only when the electronic lock is unlocked, a rotation of the rotatable section causes a rotational mechanical interaction with the mechanical lock structure.

[0111] v. The electronic lock according to any one of the preceding embodiments, wherein only when the electronic lock is unlocked, a rotation of the electronic key within the socket causes a rotational mechanical interaction with the mechanical lock structure.

[0112] vi. The electronic lock according to any one of the preceding embodiments, wherein the physical key interface is provided within the external section. [0113] vii. The electronic lock according to any one of the preceding embodiments, further comprising a first motor, wherein the access controller is configured to activate the first motor to enable the mechanical interaction with the mechanical lock structure based on granting access.

[0114] viii. The electronic lock according to embodiment vii, wherein the first motor is provided in the lock cylinder section.

[0115] ix. The electronic lock according to any one of the preceding embodiments, further comprising a second motor, wherein the access controller is configured to activate the second motor to perform rotational mechanical interaction with the mechanical lock structure based on granting access.

[0116] x. The electronic lock according to embodiment ix, wherein the second motor is provided in the external section.

[0117] According to the embodiments presented below, it is provided an electronic lock that is capable of receiving energy and communicating wirelessly with an electronic key. The electronic lock also features a code input interface for entering an access code, a rotatable member, and an energy converter that transforms mechanical energy, generated when the rotatable member is rotated, into electrical energy. This electrical energy is buffered and used to power electronic components of the electronic lock, such as the code input interface and an access controller. In this way, the electronic lock not only provides multiple user interfaces for access control but eliminates the need for batteries or other external power sources. The integration of energy harvesting directly from user interaction with the lock (through rotation) contributes to a sustainable and maintenance-free operation, while providing power to enable access code input.

[0118] xi. An electronic lock comprising: a wireless key interface enabling the electronic lock to receive energy from an electronic key and to communicate with the electronic key; a code input interface, comprising a user input device enabling a user to input an access code; an access controller configured to grant or deny access based on communication between the electronic lock and an electronic key over the wireless key interface, or based on a code input using the code input interface; a rotatable member; an energy storage device for storing electrical energy, wherein the energy storage device is configured to store energy for powering the code input interface to accept user input for the access code, and for powering the access controller to grant or deny access; and an energy converter, for converting mechanical energy, from when the rotatable member is rotated, to electrical energy stored in the energy storage device.

[0119] xii. The electronic lock according to embodiment xi, wherein the code input interface is a touch interface enabling the user to input the access code.

[0120] xiii. The electronic lock according to embodiment xi, wherein the code input interface is provided using the rotatable member, such that the user can rotate the rotatable member to input the access code.

[0121] xiv. The electronic lock according to any one of embodiments xi to xiii, wherein there are no other sources for electrical energy than the wireless key interface and the energy converter.

[0122] xv. The electronic lock according to any one of embodiments xi to xiv, wherein the electronic lock further comprises: a lock cylinder section configured to mechanically interact with a mechanical lock structure, wherein the lock cylinder section is configured to be located, when the electronic lock is installed, within a recess; and an external section configured to be located, when the electronic lock is installed, outside the recess; wherein the wireless key interface and the code input interface are provided in the external section.

[0123] xvi. The electronic lock according to embodiment xv, wherein the access controller is provided in the external section. [0124] xvii. The electronic lock according to any one of embodiments xi to xvi, further comprising a user output device, wherein the electronic lock is configured to emit a user notification using the user output device based on sufficient energy from the energy converter being stored in the energy storage device, for powering the code input interface to accept user input for the access code, and for powering the access controller to grant or deny access.

[0125] xviii. The electronic lock according to embodiment xvii, wherein the user output device comprises at least one of a light source and/or a sound source.

[0126] xix. A method for conditionally deactivating wireless communication with an electronic lock, the method being performed by an electronic lock comprising a wireless key interface and a second credential interface, the method comprising: authenticating using the second credential interface; detecting a user action using the second credential interface indicating a desire to deactivate the wireless key interface; and deactivating the wireless key interface.

[0127] xx. The method according to embodiment xix, wherein the second credential interface is a physical key interface and wherein the authentication comprises authenticating an electronic key conductively connected of the physical key interface.

[0128] xxi. The method according to embodiment xx, wherein the user action comprises that the user turns the electronic key, inserted into a socket of the physical key interface, a predefined number of times within a threshold duration.

[0129] xxii. The method according to embodiment xx or xxi, wherein the user action comprises that the user turns the electronic key from an initial position to a rotated position, and holds the electronic key in the rotated position longer than a threshold duration.

[0130] xxiii. The method according to any one of embodiments xx to xxii, wherein the user action comprises that the user inserts the electronic key, into the socket of the physical key interface, a predefined number of times within a threshold duration. [0131] xxiv. The method according to any one of embodiments xx to xxiii, wherein the detecting a user action comprises detecting one of a first user action and a second user action, wherein the first user action and the second user action are distinct, wherein the duration that the wireless key interface is deactivated depends on whether the user action is detected to be the first user action or the second user action.

[0132] xxv. The method according to embodiment xxiv, wherein the first user action is that the user turns the electronic key, inserted into a socket of the physical key interface, a predefined number of times within a threshold duration, and the second user action is that the user turns the electronic key, inserted into a socket of the physical key interface, three times within a threshold duration.

[0133] xvi. The method according to embodiment xxiv, wherein the first user action is that the user turns the electronic key from an initial position to a rotated position, and holds the electronic key in the rotated position longer than a first threshold duration and the second user action is that the user turns the electronic key from an initial position to a rotated position, and holds the electronic key in the rotated position longer than a second threshold duration.

[0134] xvii. The method according to any one of embodiments xix to xxvi, further comprising: notifying the user that the wireless key interface is deactivated.

[0135] xviii. The method according to embodiment xxvii, wherein the notifying comprises activating a light emitting diode, LED, of the electronic lock.

[0136] xxix. The method according to embodiment xxvii or xxviii, wherein the notifying comprises emitting a sound or vibration to the user.

[0137] xxx. The method according to any one of embodiments xxvii to xxix, wherein the notifying comprises triggering a notification on a mobile phone of the user.

[0138] xxxi. An electronic lock for conditionally deactivating wireless communication with the electronic lock, the electronic lock comprising: a wireless key interface; a second credential interface; processing circuitry; and memory circuitry storing instructions that, when executed by the processing circuitry, cause the electronic lock to: authenticate using the second credential interface; detect a user action using the second credential interface indicating a desire to deactivate the wireless key interface; and deactivate the wireless key interface.

[0139] xxxii. The electronic lock according to embodiment xxxi, wherein the second credential interface is a physical key interface and wherein the authentication comprises authenticating an electronic key conductively connected of the physical key interface.

[0140] xxxiii. The electronic lock according to any embodiment xxxii, wherein the instructions to detect a user action comprise instructions that, when executed by the processing circuitry, cause the electronic lock to detect one of a first user action and a second user action, wherein the first user action and the second user action are distinct, wherein the duration that the wireless key interface is deactivated depends on whether the user action is detected to be the first user action or the second user action.

[0141] xxxiv. A computer program for conditionally deactivating wireless communication with the electronic lock, the computer program comprising computer program code which, when executed on an electronic lock comprising a wireless key interface, and a second credential interface, causes the electronic lock to: authenticate using the second credential interface; detect a user action using the second credential interface indicating a desire to deactivate the wireless key interface; and deactivate the wireless key interface.

[0142] xxxv. A computer program product comprising a computer program according to embodiment xxxiv and a computer readable means comprising non- transitory memory in which the computer program is stored. [0143] The aspects of the present disclosure have mainly been described above with reference to a few embodiments. However, as is readily appreciated by a person skilled in the art, other embodiments than the ones disclosed above are equally possible within the scope of the invention, as defined by the appended patent claims. Thus, while various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope being indicated by the following claims.

Claims

1. A method for conditionally deactivating wireless communication with an electronic lock (12), the method being performed by an electronic lock (12) comprising a wireless key interface (30) and a second credential interface (32, 4) being a physical key interface (32), the method comprising: authenticating (40) using the second credential interface (32, 4), which comprises authenticating an electronic key (2) conductively connected of the physical key interface (32); detecting (42) a user action using the second credential interface indicating a desire to deactivate the wireless key interface (30); and deactivating (44) the wireless key interface (30); wherein the detecting (42) a user action comprises detecting one of a first user action and a second user action, wherein the first user action and the second user action are distinct, wherein the duration that the wireless key interface (30) is deactivated depends on whether the user action is detected to be the first user action or the second user action.

2. The method according to claim 1, wherein the user action comprises that the user turns the electronic key (2), inserted into a socket (33) of the physical key interface (32), a predefined number of times within a threshold duration.

3. The method according to claim 1 or 2, wherein the user action comprises that the user turns the electronic key (2) from an initial position to a rotated position, and holds the electronic key (2) in the rotated position longer than a threshold duration.

4. The method according to any one of the preceding claims, wherein the user action comprises that the user inserts the electronic key (2), into the socket (33) of the physical key interface (32), a predefined number of times within a threshold duration.

5. The method according to any one of the preceding claims, wherein the first user action is that the user turns the electronic key (2), inserted into a socket (33) of the physical key interface (32), a predefined number of times within a threshold duration, and the second user action is that the user turns the electronic key (2), inserted into a socket (33) of the physical key interface (32), three times within a threshold duration.

6. The method according to any one of claims 1 to 4, wherein the first user action is that the user turns the electronic key (2) from an initial position to a rotated position, and holds the electronic key (2) in the rotated position longer than a first threshold duration and the second user action is that the user turns the electronic key (2) from an initial position to a rotated position, and holds the electronic key (2) in the rotated position longer than a second threshold duration.

7. The method according to any one of the preceding claims, further comprising: notifying (46) the user that the wireless key interface (30) is deactivated.

8. The method according to claim 7, wherein the notifying (46) comprises activating a light emitting diode, LED, of the electronic lock (12).

9. The method according to claim 7 or 8, wherein the notifying (46) comprises emitting a sound or vibration to the user (5).

10. The method according to any one of claims 7 to 9, wherein the notifying (46) comprises triggering a notification on a mobile phone of the user (5).

11. An electronic lock (12) for conditionally deactivating wireless communication with the electronic lock (12), the electronic lock (12) comprising: a wireless key interface (30); a second credential interface (32, 4) being a physical key interface (32); processing circuitry (60); and memory circuitry (64) storing instructions (67) that, when executed by the processing circuitry, cause the electronic lock (12) to: authenticate using the second credential interface (32, 4) which comprises authenticating an electronic key (2) conductively connected of the physical key interface (32); detect a user action using the second credential interface indicating a desire to deactivate the wireless key interface (30); and deactivate the wireless key interface (30); wherein the instructions to detect a user action comprise instructions (67) that, when executed by the processing circuitry, cause the electronic lock (12) to detect one of a first user action and a second user action, wherein the first user action and the second user action are distinct, wherein the duration that the wireless key interface (30) is deactivated depends on whether the user action is detected to be the first user action or the second user action.

12. A computer program (67, 91) for conditionally deactivating wireless communication with the electronic lock (12), the computer program comprising computer program code which, when executed on an electronic lock (12) comprising a wireless key interface (30), and a second credential interface (32, 4) being a physical key interface (32), causes the electronic lock (12) to: authenticate using the second credential interface (32, 4) which comprises authenticating an electronic key (2) conductively connected of the physical key interface (32); detect a user action using the second credential interface (32, 4) indicating a desire to deactivate the wireless key interface (30); and deactivate the wireless key interface (30); wherein the computer program code to detect a user action comprises computer program code which, when executed on an electronic lock (12), causes the electronic lock (12) to detect one of a first user action and a second user action, wherein the first user action and the second user action are distinct, wherein the duration that the wireless key interface (30) is deactivated depends on whether the user action is detected to be the first user action or the second user action.

13. A computer program product (64, 90) comprising a computer program according to claim 12 and a computer readable means comprising non-transitory memory in which the computer program is stored.