Bluetooth Proximity Detection System and Method of Interacting With One or More Bluetooth Devices

• US 20110028093A1
• Filed: 07/28/2010
• Published: 02/03/2011
• Est. Priority Date: 07/28/2009
• Status: Abandoned Application

• Current Assignee: Gregory D. Abowd, Joshua Seal, Matthew S. Reynolds, Ohad Zeira, Ryan Yong Kim, Shwetak N. Patel, Vishwajeet Chatterji
• Original Assignee: Gregory D. Abowd, Joshua Seal, Matthew S. Reynolds, Ohad Zeira, Ryan Yong Kim, Shwetak N. Patel, Vishwajeet Chatterji
• Inventors: Patel, Shwetak N., Kim, Ryan Yong, Chatterji, Vishwajeet, Abowd, Gregory D., Reynolds, Matthew S., Zeira, Ohad, Seal, Joshua
• Application Number:
  US12/845,680
• Publication Number:
  US 20110028093A1
• Time in Patent Office: Days
• US Class Current: 455/41.2
• CPC Class Codes: H04B 17/27 for locating or positioning the transmitter

Abstract

Some embodiments teach an apparatus for determining a proximity of one or more first Bluetooth devices. The apparatus can include: (a) at least one Bluetooth base station with (1) a Bluetooth transmitter configured to transmit one or more service discovery requests to the one or more first Bluetooth devices; and (2) a Bluetooth receiver configured to receive one or more responses from the one or more first Bluetooth devices to the one or more service discovery requests; and (b) a computational module configured to run on one or more processors and further configured to determine one or more approximate distances between the at least one Bluetooth base station and the one or more first Bluetooth devices based on the one or more responses from the one or more first Bluetooth devices. Other embodiments are disclosed.

Claims

1. An apparatus for determining a proximity of one or more first Bluetooth devices, the apparatus comprising:

at least one Bluetooth base station comprising;

a Bluetooth transmitter configured to transmit one or more service discovery requests to the one or more first Bluetooth devices; and

a Bluetooth receiver configured to receive one or more responses from the one or more first Bluetooth devices to the one or more service discovery requests; and

a computational module configured to run on one or more processors and further configured to determine one or more approximate distances between the at least one Bluetooth base station and the one or more first Bluetooth devices based on the one or more responses from the one or more first Bluetooth devices.

2. The apparatus of claim 1, wherein:

the computational module comprises;

a timing module configured to determine one or more first amounts of time between transmitting the one or more service discovery requests and receiving the one or more responses to the one or more service discovery requests; and

a range module configured to determine the one or more approximate distances between the at least one Bluetooth base station and the one or more first Bluetooth devices at least in part using the one or more first amounts of time.

3. The apparatus of claim 1, wherein:

the Bluetooth transmitter is further configured to transmit the one or more service discovery requests without the at least one Bluetooth base station previously pairing with the one or more first Bluetooth devices; and

the Bluetooth receiver is further configured to receive the one or more responses from the one or more first Bluetooth devices to the one or more service discovery requests without the at least one Bluetooth base station previously pairing with the one or more first Bluetooth devices.

4. The apparatus of claim 1, wherein:

the Bluetooth receiver is further configured to receive one or more Bluetooth device addresses from the one or more first Bluetooth devices as part of the one or more responses; and

the computational module is further configured to use the one or more Bluetooth device addresses of the one or more first Bluetooth devices to determine a device type of the one or more first Bluetooth devices.

5. The apparatus of claim 1, wherein:

the Bluetooth transmitter is further configured to request a list of offered services from at least one of the one or more first Bluetooth devices;

the Bluetooth receiver is further configured to receive the list of offered services from the at least one of the one or more first Bluetooth devices; and

the computational module is further configured to use the list of offered services to determine a device type of the at least one of the one or more first Bluetooth devices.

6. The apparatus of claim 1, further comprising:

at least one display device electrically coupled to the computational module and configured to display one or more display items to at least a person who possesses a first one of the one or more first Bluetooth devices,

wherein;

the computation module is further configured to determine the one or more display items at least in part based on a first distance between the Bluetooth base station and the first one of the one or more first Bluetooth devices;

the computation module is further configured to communicate the one or more display items to the at least one display device; and

the one or more approximate distances comprise the first distance.

7. The apparatus of claim 6, wherein:

the Bluetooth receiver is further configured to receive a Bluetooth device address from the first one of the one or more first Bluetooth devices;

the computational module is further configured to use the Bluetooth device address of the first one of the one or more Bluetooth devices to determine a device type of the first one of the one or more Bluetooth devices; and

the computation module is further configured to determine the one or more display items at least in part based on the first distance and the device type of the first one of the one or more Bluetooth devices.

8. The apparatus of claim 6, wherein:

the Bluetooth transmitter is further configured to request a list of offered services from the first one of the one or more first Bluetooth devices;

the Bluetooth receiver is further configured to receive the list of offered services from the first one of the one or more first Bluetooth devices; and

the computational module is further configured to determine the one or more display items at least in part based on the first distance and the list of offered services.

9. The apparatus of claim 1, wherein:

the one or more first Bluetooth devices comprise a Bluetooth tag configured to couple to a set of keys.

10. The apparatus of claim 1, wherein:

two or more stations of the at least one Bluetooth base station are distributed in a structure.

11. The apparatus of claim 10, further comprising:

a flow analysis module configured to receive information regarding one or more locations of the one or more first Bluetooth devices from the two or more stations of the at least one Bluetooth base station,

wherein;

the flow analysis module is further configured to determine a path in the structure of at least a first device of the one or more first Bluetooth devices at least in part based on the information regarding the one or more locations of the one or more first Bluetooth devices.

12. The apparatus of claim 10, further comprising:

a warning module configured to receive information regarding one or more locations of the one or more first Bluetooth devices from the two or more stations of the at least one Bluetooth base station,

wherein;

the warning module is further configured to determine whether the one or more first Bluetooth devices are permitted to be proximate to the one or more locations.

13. The apparatus of claim 10, further comprising:

one or more environmental controls configured to change one or more elements of an environment at one or more locations of the one or more first Bluetooth devices; and

a zone analysis module configured to receive information regarding the one or more locations from the two or more stations of the at least one Bluetooth base station, wherein;

the zone analysis module is further configured to communicate to the one or more environmental controls to change the one or more elements of the environment at the one or more locations when the one or more first Bluetooth devices are proximate to the one or more locations.

14. The apparatus of claim 13, wherein:

the zone analysis module is further configured to communicate to the one or more environmental controls to at least one of;

toggle electrical power to one or more lights proximate to the one or more locations;

or

adjust a temperature of a zone of the structure proximate to or encompassing the one or more locations.

15. The apparatus of claim 1, wherein:

the at least one Bluetooth base station further comprises the computational module.

16. The apparatus of claim 1, wherein:

the one or more first Bluetooth devices are configured such that the one or more first Bluetooth devices receive the one or more service discovery requests from the Bluetooth transmitter while the one or more first Bluetooth devices are paired to one or more second Bluetooth devices; and

the one or more first Bluetooth devices are configured such that the one or more first Bluetooth devices transmit the one or more responses to the one or more service discovery requests while the one or more first Bluetooth devices are paired to the one or more second Bluetooth devices.

17. A Bluetooth proximity detection system configured to interact with one or more first Bluetooth devices, the Bluetooth proximity detection system comprising:

one or more Bluetooth communications modules configured to exchange messages with the one or more first Bluetooth devices using the Bluetooth Service Discovery Protocol; and

one or more processing modules configured to run on one or more processors of one or more computer systems,

wherein;

the one or more Bluetooth communications modules are configured to receive one or more of the messages from the one or more first Bluetooth devices using the Bluetooth Service Discovery Protocol;

the one or more processing modules are further configured to determine one or more approximate distances between the one or more Bluetooth communications modules and the one or more first Bluetooth devices at least in part using the one or more of the messages; and

the one or more processing modules are further configured to determine a device type of the one or more first Bluetooth devices using the one or more of the messages.

18. The Bluetooth proximity detection system of claim 17, wherein:

the one or more Bluetooth communication modules are configured such that the one or more Bluetooth communications modules can exchange the messages with the one or more first Bluetooth devices while the one or more first Bluetooth devices are paired to one or more second Bluetooth devices.

19. The Bluetooth proximity detection system of claim 17, further comprising:

a location tracker module configured to run on the one or more processors of the one or more computer systems,

wherein;

the location tracker module is further configured to use the one or more approximate distances to track one or more locations of the one or more first Bluetooth devices.

20. A method of interacting with one or more first Bluetooth devices, the method comprising:

transmitting from one or more first Bluetooth base stations one or more service discovery requests to the one or more first Bluetooth devices;

receiving in the one or more first Bluetooth base stations one or more responses from the one or more first Bluetooth devices to the one or more service discovery requests;

determining one or more first times between transmitting the one or more service discovery requests and receiving the one or more responses; and

using the one or more first times to determine one or more approximate distances between the one or more first Bluetooth base stations and the one or more first Bluetooth devices.

21. The method of claim 20, further comprising:

using information obtained about the one or more first Bluetooth devices.

22. The method of claim 20, further comprising:

determining a device type of the one or more first Bluetooth devices.

23. The method of claim 20, wherein:

transmitting the one or more service discovery requests and receiving the one or more responses occur without pairing with the one or more first Bluetooth devices.

24. The method of claim 20, wherein:

determining the one or more first times comprises;

recording one or more second times when the one or more first Bluetooth base stations transmitted the one or more service discovery requests;

recording one or more third times when the one or more first Bluetooth base stations received the one or more responses; and

calculating the one or more first times using the one or more second times and the one or more third times.

25. The method of claim 20, wherein:

using the one or more first times to determine the one or more approximate distances comprises;

accessing a set of relationships between the first times and device distances to determine the one or more approximate distances between the one or more first Bluetooth base stations and the one or more first Bluetooth devices.