EP3107072A1 - Locating an electronic key - Google Patents
Locating an electronic key Download PDFInfo
- Publication number
- EP3107072A1 EP3107072A1 EP15172113.1A EP15172113A EP3107072A1 EP 3107072 A1 EP3107072 A1 EP 3107072A1 EP 15172113 A EP15172113 A EP 15172113A EP 3107072 A1 EP3107072 A1 EP 3107072A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electronic key
- locating device
- locating
- central server
- computer program
- 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.)
- Granted
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- 238000004590 computer program Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 26
- 230000004044 response Effects 0.000 claims abstract description 23
- 238000012790 confirmation Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 230000004888 barrier function Effects 0.000 description 10
- 230000003287 optical effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
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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
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
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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
- G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
- G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
- G07C2209/63—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
Definitions
- FIG 2 is a schematic diagram illustrating a situation where an electronic key is located using a locating device.
- a central server 10 of the access control system is responsible for managing keys and locks.
- the central server 10 can be accessed by an operator to thereby perform management tasks in the access control system.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
- The invention relates to a method, a locating device, a computer program and a computer program product for locating an electronic key, e.g. when the key has been reported lost.
- Locks and keys are evolving from the traditional pure mechanical locks. These days, there are wireless interfaces for electronic locks, e.g. by interacting with an electronic key. In some installations, to save power and complexity, the electronic locks are offline without communication ability with a central access control system.
- One issue is when an electronic key is lost. With locks being offline, these can not be used to locate any lost electronic keys. Moreover, when the electronic key lacks ability to directly communicate with a central server, this further complicates any ability to locate a lost electronic key.
- It is an object to provide a way to locate an electronic key which lacks ability to directly communicate with a central server.
- According to a first aspect, it is presented a method for locating an electronic key for access to a physical space. The method is performed in a locating device and comprises the steps of: receiving a location query from a central server, the location query comprising an identifier of an electronic key; discovering a presence of the electronic key over short range radio; and transmitting a location response to the central server indicating that the electronic key has been located.
- The location response may comprise an indicator of a position of the locating device.
- The method may further comprise the step of: obtaining a distance indicator, indicating a distance between the locating device and the electronic key; and wherein the location response comprises the distance indicator.
- The step of obtaining a distance indicator comprises using a received signal strength indicator.
- The step of discovering may comprise discovering the presence of the electronic key using Bluetooth low energy, BLE.
- The method may further comprise the steps of: receiving a central invalidation command from a central server; and transmitting a local invalidation command to the electronic key.
- The method may further comprising the steps of: receiving a local confirmation message from the electronic key to be invalidated, the local confirmation message indicating a successful invalidation; and transmitting a central confirmation message to the central server, the central confirmation message indicating a successful invalidation.
- According to a second aspect, it is presented a locating device for locating an electronic key for access to a physical space. The locating device comprises: a processor; and a memory storing instructions that, when executed by the processor, cause the locating device to: receive a location query from a central server, the location query comprising an identifier of an electronic key; discover a presence of the electronic key over short range radio; and transmit a location response to the central server indicating that the electronic key has been located.
- The location response may comprise an indicator of a position of the locating device.
- The locating device may further comprise instructions that, when executed by the processor, cause the locating device to: obtain a distance indicator, indicating a distance between the locating device and the electronic key; and wherein the location response comprises the distance indicator.
- The instructions to obtain a distance indicator may comprise instructions that, when executed by the processor, cause the locating device to use a received signal strength indicator.
- The locating device may form part of a mobile phone.
- The locating device may be a device dedicated to the purpose of locating electronic keys.
- According to a third aspect, it is presented a computer program for locating an electronic key for access to a physical space. The computer program comprises computer program code which, when run on a locating device, causes the locating device to: receive a location query from a central server, the location query comprising an identifier of an electronic key; discover a presence of the electronic key over short range radio; and transmit a location response to the central server indicating that the electronic key has been located.
- According to a fourth aspect, it is presented a computer program product comprising a computer program according to the third aspect and a computer readable means on which the computer program is stored.
- 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.
- The invention is now described, by way of example, with reference to the accompanying drawings, in which:
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Fig 1 is a schematic diagram showing an environment in which embodiments presented herein can be applied; -
Fig 2 is a schematic diagram illustrating a situation where a lost electronic key is located using a locating device; -
Fig 3 is a sequence diagram illustrating communication for locating an electronic key; -
Fig 4 is a flow chart illustrating a method for locating an electronic key, performed in the locating device ofFigs 2 and3 ; -
Fig 5 is a schematic diagram illustrating some components of a locating device according toFigs 2 and3 ; -
Fig 6 is a schematic diagram illustrating a locating device provided as part of a mobile phone; and -
Fig 7 shows one example of a computer program product comprising computer readable means. - The invention will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout the description.
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Fig 1 is a schematic diagram showing an environment in which embodiments presented herein can be applied. Access to aphysical space 16 is restricted by aphysical barrier 15 which is selectively unlockable. Thephysical barrier 15 stands between the restrictedphysical space 16 and an accessiblephysical space 14. Note that the accessiblephysical space 14 can be a restricted physical space in itself, but in relation to thisphysical barrier 15, the accessiblephysical space 14 is accessible. Thebarrier 15 can be a door, gate, hatch, window, drawer, etc. In order to unlock thebarrier 15, anaccess control device 13 is provided. Theaccess control device 13 is connected to aphysical lock device 12, which is controllable by theaccess control device 13 to be set in an unlocked state or locked state. In this embodiment, theaccess control device 13 is mounted close to thephysical lock device 12. Thebarrier 15 is provided in a surrounding fixed structure, such as a wall or fence. - The
access control device 13 is able to receive and send signals from/to anelectronic key 2 over acommunication channel 3 which may be a short range wireless interface or a conductive (i.e. galvanic/electric) connection. Theelectronic key 2 is any suitable device portable by a user and which can be used for authentication over thecommunication channel 3. Theelectronic key 2 is typically carried or worn by the user and may be implemented asa physical key, a key fob, wearable device, etc. The short range wireless interface is a radio frequency wireless interface and could e.g. be using Bluetooth, Bluetooth Low Energy (BLE), ZigBee, any of the IEEE 802. 11 standards, any of the IEEE 802.15 standards, wireless USB, etc. Using thecommunication channel 3, the authenticity of theelectronic key 2 can be checked, e.g. using a challenge and response scheme, after which theaccess control device 13 grants or denies access. - When access is granted, the
access control device 13 sends an unlock signal to thelock device 12, whereby thelock device 12 is set in an unlocked state. In this embodiment, this can e.g. imply a signal over a wire-based communication interface, e.g. using Universal Serial Bus (USB), Ethernet, a serial connection (e.g. RS-485 or RS-232) or even a simple electric connection (e.g. to the lock device 12), or alternatively signal over a wireless communication interface. When thelock device 12 is in an unlocked state, thebarrier 15 can be opened and when thelock device 12 is in a locked state, thebarrier 15 cannot be opened. In this way, access to aclosed space 16 is controlled by theaccess control device 13. It is to be noted that theaccess control device 13 and/or thelock device 12 can be mounted in the fixedstructure 16 by the physical barrier 15 (as shown) or in thephysical barrier 15 itself (not shown). Optionally, thelock device 12 andaccess control device 13 are combined in one unit. In one embodiment, the lock device (optionally combined with the access control device) is in the form of a padlock or any other suitable implementation. - The
access control device 13 can be implemented as an offline device, without the ability to directly communicate with a central server of an access control system. In this way, theaccess control device 13 is easier to implement and uses less power. This allows theaccess control device 13 to be powered for a long time using a battery or by the electronic key. Optionally, energy harvesting of mechanical user actions and/or environmental power (solar power, wind, etc.) can be utilised to prolong the life span of the battery or event to allow the battery to be omitted. -
Fig 2 is a schematic diagram illustrating a situation where an electronic key is located using a locating device. Acentral server 10 of the access control system is responsible for managing keys and locks. Thecentral server 10 can be accessed by an operator to thereby perform management tasks in the access control system. - There is a
first locating device 1a and asecond locating device 1b. Each one of the first and second locating devices are described in more detail below, and can e.g. be implemented as part of a mobile phone or as a dedicated locating device. The locatingdevices 1a-b can communicate with an electronic key for locating purposes, as explained below, and optionally also for other purposes. - In this example, a user has lost an electronic key 2' or has had the electronic key 2' stolen. The electronic key 2' then needs to be located to prevent an attacker from gaining access to closed physical spaces, otherwise accessible using the lost electronic key 2'. The
central server 10 is made aware of the lost electronic key 2', e.g. by an operator indicating that the electronic key 2' is lost. Thecentral server 10 then sends a location query to allrelevant locating devices 1a-b as explained more below. - The
second locating device 1b is withinrange 7 to communicate over a short range radio interface 5 with the lost electronic key 2'. This allows thesecond locating device 1b to communicate with the lost electronic key 2'. In this way, thesecond locating device 1b can discover the electronic key 2'. Therange 7 depends on the type of short range radio which can be used and radio conditions in the vicinity of the electronic key 2'. Whencommunication channel 3 ofFig 1 is wireless, the short range radio interface 5 may be the same as thecommunication channel 3. However, when thecommunication channel 3 ofFig 1 is based on a conductive connection, the short range radio interface 5 is not the same as thecommunication channel 3. The short range radio interface 5 may optionally be used for other purposes, e.g. other maintenance purposes for the electronic key 2'. - It is to be noted that the
first locating device 1a is outside therange 7 of the lost electronic key 2', whereby it is unable to discover and locate the lost electronic key 2' -
Fig 3 is a sequence diagram illustrating communication for locating an electronic key, e.g. in the environment shown inFig 2 . The sequence is performed to locate of an electronic key. Hereinafter, the electronic key to be located is referred to as a lost electronic key. However, there may be other reasons for locating the electronic key, e.g. the electronic key being stolen or that an employee has ended employment and whose electronic key needs to be located. - Once the
central server 10 is made aware of the lost key, thecentral server 10 sends alocation query 20 to allrelevant locating devices 1. This can e.g. be all possible locating devices or only locating devices in a specific area, e.g. within a specific range from a last known location of the lost electronic key 2'. The locatingquery 20 comprises an identifier of the lost electronic key 2'. - A locating
device 1 detects thepresence 21 of the lost electronic key 2' (e.g. as shown for thesecond locating device 1b ofFig 2 ). The locatingdevice 1 detects that the identity of the electronic key 2' matches the identity of thelocation query 20. It is to be noted that when an electronic key is detected which does not have an identity matching any location query, the locatingdevice 1 does not need to proceed further in the sequence diagram. - Once the match is confirmed between the lost electronic key 2' and the
location query 20, the locatingdevice 1 transmits alocation response 22 to thecentral server 10 indicating that lost electronic key 2' has been located. Thelocation response 22 can comprise an indicator of a position of the locating device and optionally a distance indicator indicating a distance between the locatingdevice 1 and the lost electronic key 2'. - This allows the
central server 10 to decide on any further action. For instance, thecentral server 10 may decide that the lost electronic key 2' is to be invalidated to prevent an attacker from illegitimately using the lost electronic key 2' to gain access to otherwise access controlled physical spaces. - The subsequent part of the sequence diagram relates to such optional invalidation. The
central server 10 transmits acentral invalidation command 30 to the locating device. Once thecentral invalidation command 30 has been received, the locatingdevice 1 transmits alocal invalidation command 32 to the lost electronic key 2'. Optionally, the content of thecentral invalidation command 30 and thelocal invalidation command 32 is the same. For instance, both can contain an invalidation package which can be encrypted and/or signed for the lost electronic key 2'. This allows the lost electronic key 2' to validate authenticity of the local invalidation command. In such a case, the locatingdevice 1 routes the invalidation package to the lost key 2' and does not (or cannot) examine the contents of the invalidation package. Upon receipt of thelocal invalidation command 32, the lost electronic key 2' makes itself invalid. Optionally, the electronic key 2' verifies the integrity of the invalidation command (as explained below) prior to performing its invalidation procedure. Optionally, the electronic key 2' sends alocal confirmation message 33 to thelocating device 1. The locatingdevice 1 can then send acentral confirmation message 34 to thecentral server 10. - In this way, the
central server 10 can locate and optionally initiate an invalidation using all relevant locating devices and can optionally be informed of when the invalidation has been successful. Using this method, the lost electronic key 2' can be located and optionally invalidated even though it has no direct communication link with thecentral server 10. -
Fig 4 is a flow chart illustrating a method for locating an electronic key for access to a physical space. The method is performed in the locating device ofFigs 2 and3 . The method corresponds to the actions of the locatingdevice 1 inFig 3 . - In a receive
location query step 40, a location query is received from the central server. The location query comprises an identifier of an electronic key which is to be located. The location query can e.g. be received over a wide area network, such as the Internet. - In a discover
presence step 42, a presence of the electronic key to be located is discovered over short range radio. This can e.g. be performed by discovering the presence of the electronic key using BLE. Any other short range radio technology is equally applicable. - In an optional obtain
distance indicator step 43, a distance indicator is obtained. The distance indicator indicates a distance between the locating device and the electronic key. The distance can be estimated using any suitable method. For instance, the distance can be estimated by measuring received signal strength and comparing this to transmission power. More specifically, an indicator of the transmission power which is used can be transmitted as part of the message. The receiver can then compare the received signal strength with the power used to transmit it and can thus estimate the distance based on the attenuation of the signal. Alternatively, two-way ranging can be used, measuring the time it takes to transmit a signal and receive its response, which gives a distance indication when divided by two multiplied by the speed of light. - In a transmit
location response step 44, a location response is transmitted to the central server indicating that the electronic key has been located. - Optionally, the location response comprises an indicator of a position (e.g. in form of a longitude and a latitude) of the locating device, e.g. obtained using GPS (Global Positioning System) or any other suitable location technology. Also, when the obtain
distance indicator step 43 is performed, the location response can comprise an estimated distance (e.g. in metres) to the electronic key from the position of the locating device. The position and optional estimated distance simplifies the retrieval of the electronic key to be able to reprogram and reuse the lost electronic key. - In a receive central
invalidation command step 46, a central invalidation command is received from the central server. The central invalidation command comprises a way to identify the electronic key to be invalidated, e.g. by an explicit identifier of an electronic key or by a reference to a session comprising the location query. The central invalidation command can e.g. be received over a wide area network, such as the Internet. - Furthermore, the central invalidation command can comprise a main command and an integrity indicator. The integrity can e.g. be derived using the main command and a private electronic key, e.g. using a cryptographic hash function such as SHA-2 (Secure Hash Algorithm 2) or MD-5 (Message Digest algorithm 5).
- In a transmit local
invalidation command step 48, a local invalidation command is transmitted to the electronic key to be invalidated. The main command and the integrity indicator of the central invalidation command can form part of the local invalidation command. This allows the electronic key to verify the source of the invalidation, i.e. from the central server. In this way, third parties are prevented from invalidating keys. - In a receive local
confirmation message step 50, a local confirmation message is received from the electronic key to be invalidated. The local confirmation message indicates a successful invalidation. - In a transmit central
confirmation message step 52, a central confirmation message is transmitted to the central server. The central confirmation message indicates a successful invalidation. -
Fig 5 is a schematic diagram showing some components of the locating device ofFigs 2 and3 . Aprocessor 60 is provided using any combination of one or more of a suitable central processing unit (CPU), multiprocessor, microcontroller, digital signal processor (DSP), application specific integrated circuit etc., capable of executingsoftware instructions 66 stored in amemory 64, which can thus be a computer program product. Theprocessor 60 can be configured to execute the method described with reference toFig 4 above. - The
memory 64 can be any combination of read and write memory (RAM) and read only memory (ROM). Thememory 64 also comprises 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. - A
data memory 66 is also provided for reading and/or storing data during execution of software instructions in theprocessor 60. Thedata memory 66 can be any combination of read and write memory (RAM) and read only memory (ROM). - The locating
device 1 further comprises an I/O interface 67 for communicating with other external entities. Optionally, the I/O interface 67 also includes a user interface. - Other components of the locating
device 1 are omitted in order not to obscure the concepts presented herein. -
Fig 6 is a schematic diagram illustrating alocating device 1 provided as part of amobile phone 4. In such a case, components of themobile phone 4 can be utilised also by the locatingdevice 1. - In another embodiment, the locating
device 1 is a device dedicated to the purpose of locating electronic keys. In such a case, thededicated locating device 1 can be placed in a location where there is a large chance of discovering a lost electronic key. For instance, the dedicated locating device can be placed by the entrance of a building or by a public transport gateway (e.g. underground turnstiles). Thededicated locating device 1 does not need to be portable and can thus be connected to a power socket and wireless and/or wire based communication links for communication with the central server. In this way, thededicated locating device 1 can be continuously active. -
Fig 7 shows one example of a computer program product comprising computer readable means. On this computer readable means acomputer program 91 can be stored, which computer program can cause a processor to execute a method according to embodiments described herein. In this example, the computer program product is an optical disc, such as a CD (compact disc) or a DVD (digital versatile disc) or a Blu-Ray disc. As explained above, the computer program product could also be embodied in a memory of a device, such as thecomputer program product 64 ofFig 5 . While thecomputer program 91 is here schematically shown as a track on the depicted optical disk, the computer program can be stored in any way which is suitable for the computer program product, such as a removable solid state memory, e.g. a Universal Serial Bus (USB) drive. - The invention has 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.
Claims (15)
- A method for locating an electronic key (2') for access to a physical space (16), the method being performed in a locating device (1, 1a, 1b) and comprising the steps of:receiving (40) a location query (20) from a central server (10), the location query (20) comprising an identifier of an electronic key (2');discovering (42) a presence of the electronic key (2') over short range radio; andtransmitting (44) a location response (22) to the central server indicating that the electronic key (2') has been located.
- The method according to claim 1, wherein the location response (22) comprises an indicator of a position of the locating device (1, 1a, 1b).
- The method according to claim 1 or 2, further comprising the step of:obtaining (43) a distance indicator, indicating a distance between the locating device (1, 1a, 1b) and the electronic key (2'); andwherein the location response (22) comprises the distance indicator.
- The method according to claim 3, wherein the step of obtaining (43) a distance indicator comprises using a received signal strength indicator.
- The method according to any one of the preceding claims, wherein the step of discovering (42) comprises discovering the presence of the electronic key (2') using Bluetooth low energy, BLE.
- The method according to any one of the preceding claims, further comprising the steps of:receiving (46) a central invalidation command (30) from a central server (10); andtransmitting (48) a local invalidation command (32) to the electronic key.
- The method according to claim 6, further comprising the steps of:receiving (50) a local confirmation message (33) from the electronic key (2') to be invalidated, the local confirmation message (33) indicating a successful invalidation; andtransmitting (52) a central confirmation message (34) to the central server, the central confirmation message (34) indicating a successful invalidation.
- A locating device (1, 1a, 1b) for locating an electronic key (2') for access to a physical space (16), the locating device (1, 1a, 1b) comprising:a processor (60); anda memory (64) storing instructions (66) that, when executed by the processor, cause the locating device (1, 1a, 1b) to:receive a location query (20) from a central server (10), the location query (20) comprising an identifier of an electronic key (2');discover a presence of the electronic key (2') over short range radio; andtransmit a location response (22) to the central server indicating that the electronic key (2') has been located.
- The locating device (1, 1a, 1b) according to claim 8, wherein the location response (22) comprises an indicator of a position of the locating device (1, 1a, 1b).
- The locating device (1, 1a, 1b) according to claim 8 or 9, further comprising instructions (66) that, when executed by the processor, cause the locating device (1, 1a, 1b) to: obtain a distance indicator, indicating a distance between the locating device (1, 1a, 1b) and the electronic key (2'); and wherein the location response (22) comprises the distance indicator.
- The locating device (1, 1a, 1b) according to claim 10, wherein the instructions to obtain a distance indicator comprise instructions (66) that, when executed by the processor, cause the locating device (1, 1a, 1b) to use a received signal strength indicator.
- The locating device (1, 1a, 1b) according to any one of claims 9 to 11, wherein the locating device forms part of a mobile phone.
- The locating device (1, 1a, 1b) according to any one of claims 9 to 11, wherein the locating device is a device dedicated to the purpose of locating electronic keys.
- A computer program (90) for locating an electronic key (2') for access to a physical space (16), the computer program comprising computer program code which, when run on a locating device (1, 1a, 1b), causes the locating device (1, 1a, 1b) to:receive a location query (20) from a central server (10), the location query (20) comprising an identifier of an electronic key (2');discover a presence of the electronic key (2') over short range radio; andtransmit a location response (22) to the central server indicating that the electronic key (2') has been located.
- A computer program product (91) comprising a computer program according to claim 14 and a computer readable means on which the computer program is stored.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP15172113.1A EP3107072B1 (en) | 2015-06-15 | 2015-06-15 | Locating an electronic key |
PCT/EP2016/063626 WO2016202796A1 (en) | 2015-06-15 | 2016-06-14 | Locating an electronic key |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15172113.1A EP3107072B1 (en) | 2015-06-15 | 2015-06-15 | Locating an electronic key |
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EP3107072A1 true EP3107072A1 (en) | 2016-12-21 |
EP3107072B1 EP3107072B1 (en) | 2023-01-11 |
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EP15172113.1A Active EP3107072B1 (en) | 2015-06-15 | 2015-06-15 | Locating an electronic key |
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EP (1) | EP3107072B1 (en) |
WO (1) | WO2016202796A1 (en) |
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US11386736B2 (en) | 2018-03-26 | 2022-07-12 | Carrier Corporation | System and method for monitoring an access key from a key-box |
US11384565B2 (en) | 2018-03-26 | 2022-07-12 | Carrier Corporation | System and method for monitoring an access key from a key box |
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US11466473B2 (en) | 2018-04-13 | 2022-10-11 | Dormakaba Usa Inc | Electro-mechanical lock core |
CN112752891B (en) | 2018-04-13 | 2022-08-05 | 多玛卡巴美国公司 | Electromechanical lock core |
CN115643523A (en) * | 2021-07-20 | 2023-01-24 | 华为技术有限公司 | Positioning method and related equipment |
CN115226201B (en) * | 2022-03-15 | 2024-02-13 | 广州汽车集团股份有限公司 | Digital key calibration method, device, vehicle and storage medium |
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US11386736B2 (en) | 2018-03-26 | 2022-07-12 | Carrier Corporation | System and method for monitoring an access key from a key-box |
US11384565B2 (en) | 2018-03-26 | 2022-07-12 | Carrier Corporation | System and method for monitoring an access key from a key box |
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Also Published As
Publication number | Publication date |
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WO2016202796A1 (en) | 2016-12-22 |
EP3107072B1 (en) | 2023-01-11 |
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