Personal proximity network

• US 20070001803A1
• Filed: 08/23/2004
• Published: 01/04/2007
• Est. Priority Date: 08/25/2003
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Plamoottil, Thomas
• Application Number:
  US10/569,250
• Publication Number:
  US 20070001803A1
• Time in Patent Office: Days
• US Class Current: 340/2.100
• CPC Class Codes: G08B 13/1427 with transmitter-receiver for distance detection
• CPC Class Codes: G08B 13/2462 Asset location systems combined with EAS inventory, tracking, logistic G06Q10/00; entrance control systems G07C9/00
• CPC Class Codes: G08B 21/0227 System arrangements with a plurality of child units
• CPC Class Codes: H04B 3/36 Repeater circuits H04B3/58 takes precedence

Abstract

A method for tracking the proximity of a plurality of slave objects to a master object associated with a person is provided. The method including: providing the master and slave objects with a wireless communication means operating within a predetermined distance from the master object; periodically signaling the slave objects; and determining if any of the slave objects is within the predetermined distance based upon whether a response to the signaling is received from the slave objects. The method can further include warning the person from the master object if any slave object is determined not to be within the predetermined distance.

Claims

1. A method for tracking the proximity of at least one slave object (102a-102e) to a master object (104) associated with a person, the method comprising:

(a) providing the master (104) and at least one slave object (102a-102e) with a wireless communication means (116, 114, 136, 138) operating within a predetermined distance (108) from the master object (104);

(b) periodically signaling (10) the at least one slave object (102a-102e); and

(c) determining if the at least one slave object (102a-102e) is within the predetermined distance (108) based upon whether a response (112) to the signaling (110) is received from the at least one slave object (102a-102e).

2. The method of claim 1, further comprising warning the person from the master object (104) if the at least one slave object (102a-102e) is determined not to be within the predetermined distance (108).

3. The method of claim 1, further comprising indicating at least one additional object as a slave object (102a-102e).

4. The method of claim 1, further comprising:

determining whether the at least one slave object (102a-102e) has received the signaling (110) within a predetermined time period; and

warning the person from the at least one slave object (102a-102e) if it is determined that the at least one slave object (102a-102e) has not received the signaling within the predetermined time period.

5. The method of claim 1, wherein the at least one slave object (102a-102e) comprises a plurality of slave objects, the method further comprising:

determining which of the plurality of slave objects (102a-102e) is within the predetermined distance (108); and

carrying out steps (b) and (c) only for those slave objects (102a-102e) that are determined to be within the predetermined distance (108).

6. The method of claim 2, wherein the at least one slave object comprises first and second slave objects, the method further comprising:

indicating the first slave object (102e) as being temporarily removable outside the predetermined distance (108); and

warning the person that the first slave object (102e) is outside the predetermined distance 108) in a different manner than if the second slave object (102a-102d) is outside the predetermined distance (102e).

7. A system (100) for tracking the proximity of at least one slave object (102a-102e) to a master object (104) associated with a person, the system comprising:

the master object (104) comprising;

a wireless transmitter (114, 116) operating within a predetermined distance (108) for periodically transmitting a signal (110) to the at least one slave object (102a-102e);

a wireless receiver (114) for receiving a response (112) to the signal (110); and

a processor (116) for determining whether the response (112) is received from the at least one slave object (102a-102e); and

the at least one slave object (102a-102e) comprising;

a wireless receiver (136, 138) for receiving the signal (110) from the master object (104); and

a wireless transmitter (136, 138) for transmitting the response (112) to the master object (104) if the signal (110) is received by the at least one slave object (102a-102e).

8. The system of claim 7, the master object (104) further comprising warning means (122, 120, 118) for warning the person if it is determined that the response (110) is not received from the at least one slave object (102a-102e).

9. The system of claim 7, the master object (104) further comprising means (116, 126) for adding at least one additional object as a slave object (102a-102e).

10. The system of claim 7, the at least one slave object (102a-102e) further comprising:

a processor (138) for determining whether the at least one slave object (102a-102e) has received the signal (110) within a predetermined time period; and

warning means (140, 142) for warning the person if it is determined that the at least one slave object (102a-102e) has not received the signal (110) within the predetermined time period.

11. The system of claim 7, wherein the at least one slave object (102a-102e) comprises a plurality of slave objects (102a-102e) and the processor (116) of the master object (104) determines which of the plurality of slave objects (102a-102e) is within the predetermined distance (108) and transmits signals (110) only to those slave objects (102a-102d) that are determined to be within the predetermined distance (108).

12. The system of claim 8, wherein the at least one slave object (102a-102e) comprises first and second slave objects, the master object (104) further comprising:

means (116, 126) for indicating the first slave object (102e) as being temporarily removable outside the predetermined distance (108); and

means (118, 120, 122) for warning the person that the first slave object (102e) is outside the predetermined distance (108) in a different manner than if the second slave object (102a-102d) is outside the predetermined distance (108).

13. A master object (104) for tracking the proximity of at least one slave object (102a-102e), the master object (104) comprising:

a wireless transmitter (114, 116) operating within a predetermined distance (108) for periodically transmitting a signal (110) to the at least one slave object (102a-102e);

a wireless receiver (114, 116) for receiving a response (112) to the signal (110); and

a processor (116) for determining whether the response (112) is received from the at least one slave object (102a-102e).

14. The master object of claim 13, further comprising warning means (118, 120, 122) for warning the person if it is determined that the response (112) is not received from the at least one slave object (102a-102e).

15. The master object of claim 13, further comprising means (116, 126) for adding at least one additional object as a slave object (102a-102e).

16. The master object of claim 13, wherein the at least one slave object (102a-102e) comprises a plurality of slave objects and the processor (116) determines which of the plurality of slave objects (102a-102d) is within the predetermined distance (108) and transmits signals (110) only to those slave objects (102a-102d) that are determined to be within the predetermined distance (108).

17. The master object of claim 14, wherein the at least one slave object comprises first and second slave objects, the master object (104) further comprising:

means (116, 126) for indicating the first slave object (102e) as being temporarily removable outside the predetermined distance (108); and

means (118, 120, 122) for warning the person that the first slave object (102e) is outside the predetermined distance (108) in a different manner than if the second slave object (102a-102d) is outside the predetermined distance (108).

18. The master object of claim 13, wherein the transmitter and receiver (116, 14) operate on one of RFID or Bluetooth protocols.

19. The master object of claim 13, wherein the master object comprises a cellular telephone (104).

20. A computer program product embodied in a computer-readable medium for tracking the proximity of at least one slave object (102a-102e) to a master object (104) associated with a person, the computer program product comprising:

computer readable program code means for providing the master and at least one slave object with a wireless communication means (114, 116, 136, 138) operating within a predetermined distance (108) from the master object (104);

computer readable program code means for periodically signaling (110) the at least one slave object (102a-102e); and

computer readable program code means for determining if the at least one slave object (102a-102e) is within the predetermined distance (108) based upon whether a response (112) to the signaling (110) is received from the at least one slave object (102a-102e).