Method for Unlocking a Lock by a Lock Device Enabled for Short-Range Wireless Data Communication in Compliance With a Communication Standard and Associated Device

• US 20090184801A1
• Filed: 03/17/2006
• Published: 07/23/2009
• Est. Priority Date: 03/18/2005
• Status: Active Grant

• Current Assignee: Phoniro AB (Assa Abloy AB)
• Original Assignee: Phoniro AB (Assa Abloy AB)
• Inventors: Horberg, Johan, Bliding, Olle
• Granted Patent: US 8,593,249 B2
• Time in Patent Office: Days
• US Class Current: 340/5.610
• CPC Class Codes: E05B 2047/0091 Retrofittable electric locks, e.g. an electric module can be attached to an existing manual lock
• CPC Class Codes: E05B 49/00 Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor arrangements for sensing or reading record carriers G06K7/00; mechanisms including electronic locks actuated by nonmechanical keys such as passive and active electrical keys and other data carriers G07C9/00, G07F7/00; electronic switching H03K17/00
• CPC Class Codes: G07C 2009/00373 whereby the wake-up circuit is situated in the lock
• CPC Class Codes: G07C 2009/00642 by battery
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 2209/64 using a proximity sensor
• CPC Class Codes: G07C 2209/65 using means for sensing the user's hand
• CPC Class Codes: G07C 9/00174 Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys mechanical locks with electric permutation E05B49/00; arrangements for sensing or reading record carriers G06K7/00; electronic switching H03K17/00
• CPC Class Codes: G07C 9/00182 operated with unidirectional data transmission between data carrier and locks
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks
• CPC Class Codes: Y10T 70/7136 Key initiated actuation of device

Abstract

A method is presented for unlocking a lock by a lock device enabled for short-range wireless data communication in compliance with a communication standard. In one embodiment, the method includes: a) detecting a key device within operative range of the lock device; b) determining a wireless communication address of the key device; c) evaluating the determined key device address by reference to a data storage with a number of wireless communication addresses stored therein; d) generating an evaluation result from said evaluating step c), wherein a match between the determined key device address and any of the wireless communication addresses stored in the data storage is a requisite for a positive evaluation result; and e) unlocking said lock if a positive evaluation result is generated in step d).

Claims

1. A method for unlocking a lock by a lock device enabled for short-range wireless data communication in compliance with a communication standard, the method comprising:

a) detecting a key device within operative range of the lock device;

b) determining a wireless communication address of the key device;

c) evaluating the determined key device address by reference to a data storage with a number of wireless communication addresses stored therein;

d) generating an evaluation result from said evaluating step c), wherein a match between the determined key device address and any of the wireless communication addresses stored in the data storage is a requisite for a positive evaluation result; and

e) unlocking said lock if a positive evaluation result is generated in step d).

2. The method as defined in claim 1, wherein said steps a) and b) of detecting and determining are performed without any establishment of a two-way communication link between lock device and key device pursuant to said communication standard.

3. The method as defined in claim 1, wherein said communication standard is BlueTooth™

.

4. The method as defined in claim 3, wherein steps a) and b) involve:

paging for BlueTooth™

enabled devices within operative range by sending inquiry requests;

receiving an inquiry response from said key device; and

obtaining said wireless communication address of said key device by reading its BlueTooth™

address from said inquiry response.

5. The method as defined in claim 1, wherein step b) further includes determining a current time;

steps c) and d) further include comparing said current time with a number of time slots associated with a particular one of the stored wireless communication addresses that matches the determined wireless communication address of the key device, a requisite for a positive evaluation result being that the current time falls within any of said time slots.

6. The method as defined in claim 1, wherein the wireless communication addresses stored in the data storage is associated with respective authority levels, wherein steps c) and d) include:

for a particular one of the stored wireless communication addresses that matches the determined wireless communication address of the key device, generating a first evaluation result if an authority level associated with said particular address meets or exceeds a predetermined authority level, and otherwise generating a second evaluation result, wherein said first evaluation result corresponds to said positive evaluation result and causes performance of step e)-, and wherein said second evaluation result causes, instead of step e)-, performance of the following steps;

f) establishing a two-way communication link between said lock device and said key device pursuant to said communication standard;

g) receiving verification data from said key device over said communication link;

h) authenticating said key device by matching the received verification data with authentication data stored in said data storage and associated with said particular address; and

i) upon successful authentication of said key device in step h), unlocking said lock.

7. The method as defined in claim 5, wherein time slots are provided in first and second types, said first type of time slot representing a first authority level which meets or exceeds said predetermined authority level, and said second type of time slot representing a second authority level which is below said predetermined authority level, the method involving the step of deciding that said authority level associated with said particular address is said first authority level if said current time falls within at least one time slot which is of said first type and is associated with said particular address.

8. The method as defined in claim 6, wherein said verification data includes a PIN (Personal Identification Number) code.

9. The method as defined in claim 6, wherein said verification data includes biometric data.

10. The method as defined in claim 1, further comprising steps of detecting the presence of a user in a vicinity of said lock device and in response thereto, triggering performance of step a).

11. The method as defined in claim 10, wherein the presence of said user is detected by receiving a detection signal from a proximity sensor positioned and adapted to monitor the vicinity of said lock device.

12. The method as defined in claim 11, wherein said proximity sensor is selected from the group consisting of:

an IR (Infra-Red) sensor, an ultra-sound sensor, an optical sensor, an RF (Radio Frequency) sensor, a pressure sensor, a capacitive sensor, an acoustic sensor or a vibration sensor.

13. The method as defined in claim 11, wherein said lock device is mounted to a door having a door handle, said proximity sensor is positioned on or at said door handle and is adapted to generate said detection signal by electrically detecting interaction from said user on said door handle.

14. The method as defined in any of claim 1, further comprising storing said wireless communication address, as determined in step b), in said data storage.

15. The method as defined in claim 6, further comprising generating at least one of a log file and statistics by collecting wireless communication addresses for different key devices as stored in the data storage;

and transmitting said at least one of log file and statistics to said key device over said communication link.

16. The method as defined in claim 6, further comprising receiving authentication data updating information from said key device over the communication link established in step f)-;

determining a first time stamp in the authentication data updating information received, said first time stamp reflecting a time of origin for the authentication data updating information;

determining a second time stamp for the authentication data currently stored in the data storage in the lock device; and

updating the authentication data currently stored in the data storage in the lock device with authentication data included in the authentication data updating information received, if said first time stamp is newer than said second time stamp.

17. The method as defined in claim 16, further comprising determining a third time stamp in the authentication data updating information received, wherein said third time stamp reflects a time of receipt of said authentication data updating information at said key device from a remote server, and wherein said first time stamp reflects a creation time of said authentication data updating information at said server;

and performing said updating only if said first time stamp is older than said third time stamp, and both of said first and third time stamps are newer than said second time stamp.

18. A lock actuating device for a lock mechanism of a lock, the lock actuating device comprising:

a wireless transceivers,

a controller to generate a control signal,

a data storage associated with the controller, and

a lock actuator adapted for actuation of the lock mechanism upon receipt of the control signal from the controller,

wherein the controller is configured to detect a wireless communication address of a present key device and perform a first authorization by evaluating the detected wireless communication address for verification against data in said data storage, a possible first outcome of the first authorization representing full approval of said present key device and a possible second outcome of the first authorization representing less than full approval of said present key device,

wherein the controller is further configured, for said first outcome of the first authorization, to generate said control signal to the lock actuator, and, for said second outcome of the first authorization, respectively, to perform a second authorization involving retrieving verification data from said key-device over an established two-way communication link via said wireless transceiver and evaluating the verification data for verification against data in said data storage, a possible first outcome of the second authorization representing approval of said present key device, the controller being configured, for said first outcome of the second authorization, to generate said control signal to the lock actuator.

19. A lock actuating device according to claim 18, further comprising a real-time clock to provide the controller with a current time value, wherein the controller is configured, during the first authorization, to evaluate said current time value with respect to data in said data storage to determine whether said current time matches an allowable time period defined by said data for the wireless communication address of said present key device, a requisite for said possible first outcome being a match between said current time value and said allowable time period.

20. A lock actuating device according to claim 18, wherein the controller includes a sleep mode and an operational mode, the lock actuating device further comprising a wake-up arrangement including a sensor and associated circuitry, the sensor being positioned to detect the presence of a user in a vicinity of the lock actuating device, and the circuitry being adapted to generate a wake-up control signal (to the controller upon detection of said user, so as to cause the controller to switch from sleep mode to operational mode.

21. A lock device for unlocking a lock, comprising:

means for short-range wireless data communication in compliance with a communication standard;

means for detecting a key device (within operative range of the lock device;

means for determining a wireless communication address of the key device;

a data storage with a number of wireless communication addresses stored therein;

means for evaluating the determined key device address by referring to the number of wireless communication addresses stored in the data storage and generating an evaluation result, wherein a match between the determined key device address and any of the wireless communication addresses stored in the data storage is a requisite for a positive evaluation result; and

means for unlocking said lock if a positive evaluation result is generated.

22. (canceled)