Anonymous device position measuring system and method

• US 9,578,617 B2
• Filed: 08/19/2014
• Issued: 02/21/2017
• Est. Priority Date: 08/19/2014
• Status: Active Grant

• Current Assignee: Stratacache Limited
• Original Assignee: Walkbase Oy (STRATACACHE Products, Inc.)
• Inventors: Nyman, Gabriel, Sjlund, Bjrn, Jern, Niclas
• Primary Examiner(s): ZEWDU, MELESS NMN
• Application Number:
  US14/462,715
• Publication Number:
  US 20160057727A1
• Time in Patent Office: 917 Days
• US Class Current: 1/1
• CPC Class Codes: G06Q 30/0261 based on user location
• CPC Class Codes: H04L 63/0407 wherein the identity of one or more communicating identities is hidden cryptographic mechanisms or cryptographic arrangements for anonymous credentials or for identity based cryptographic systems H04L9/00
• CPC Class Codes: H04W 12/02 Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 4/38 for collecting sensor information
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A system for measuring in an anonymous manner one or more spatial positions of one or more user devices within a region, wherein the system includes a wireless arrangement for receiving signals from the one or more user devices for determining the one or more spatial positions of the one or more user devices, wherein the wireless arrangement is operable to receive one or more user identification codes from the one or more user devices, wherein the one or more user identification codes include N bits; the system is operable to apply a mapping function to map the one or more user identification codes to form one or more corresponding secondary identification codes by decreasing an entropy of the one or more user identification codes by K bits; and the system is operable to modify the one or more corresponding secondary identification codes by increasing entropy of the one or more corresponding secondary identification codes by M bits.

Claims

1. A system for measuring in an anonymous manner one or more spatial positions of one or more user devices within a region, wherein the system includes a wireless arrangement for receiving signals from the one or more user devices for determining the one or more spatial positions of the one or more user devices, wherein

the wireless arrangement is configured to receive one or more user identification codes from the one or more user devices, wherein the one or more user identification codes include N bits for each of the one or more user devices;

the system is configured to apply a mapping function to map the one or more user identification codes to form one or more corresponding secondary identification codes by decreasing an entropy of said each of the one or more user identification codes by K bits; and

the system is further configured to modify the one or more corresponding secondary identification codes by increasing an entropy of said each of the one or more corresponding secondary identification codes by M bits to generate a post ID code for each of the one or more user devices, wherein the post ID code is used to represent each of the one or more user devices when providing the one or more spatial positions for each of the one or more user devices.

2. The system as claimed in claim 1, wherein the one or more user identification codes are one or more MAC codes of the one or more user devices.

3. The system as claimed in claim 1, wherein the mapping function is a logical operation.

4. The system as claimed in claim 3, wherein the logical operation includes at least one of:

a logical AND function, a logical OR function, a logical XOR function.

5. The system as claimed in claim 1, wherein the system is configured to modify the entropy of the one or more corresponding secondary identification codes by spreading the one or more corresponding secondary identification codes pseudorandomly around a post-ID space as employed by the system to represent the one or more user devices within the system.

6. The system as claimed in claim 1, wherein the wireless arrangement includes a plurality of nodes which are spatial distributed at mutually different spatial positions within the region.

7. The system as claimed in claim 6, wherein the nodes of the wireless arrangement are configured to form a self-configuration wireless communication network for communicating the one or more user identification codes and/or the one or more user identification codes in modified form within the system.

8. The system as claimed in claim 6, wherein the nodes of the wireless arrangement are configured to form a peer-to-peer (P2P) wireless communication network for communicating the one or more user identification codes and/or the one or more user identification codes in modified form within the system.

9. The system as claimed in claim 1, wherein the wireless arrangement is configured to utilize at least one node for checking a presence of the one or more user devices within the region.

10. A system for measuring in an anonymous manner one or more spatial positions of one or more user devices within a region, wherein the system includes a wireless arrangement for receiving signals from the one or more user devices for determining the one or more spatial positions of the one or more user devices, wherein

the wireless arrangement is configured to receive one or more user identification codes from the one or more user devices, wherein the one or more user identification codes include N bits for each of the one or more user devices;

the system is configured to modify the one or more user identification codes by increasing an entropy of the one or more user identification codes by M bits; and

the system is configured to apply a mapping function to map the entropy-increased one or more user identification codes to form one or more corresponding secondary identification codes by decreasing an entropy of said each of the one or more user identification codes by K bits to generate a post ID code for each of the one or more user devices, wherein the post ID code is used to represent each of the one or more user devices when providing the one or more spatial positions for each of the one or more user devices.

11. A method of measuring in an anonymous manner one or more spatial positions of one or more user devices within a region of a system, wherein the system includes a wireless arrangement for receiving signals from the one or more user devices for determining the one or more spatial positions of the one or more user devices, wherein the method includes:

(a) receiving one or more user identification codes from the one or more user devices, wherein the one or more user identification codes include N bits for each of the one or more user devices;

(b) applying a mapping function to map the one or more user identification codes to form one or more corresponding secondary identification codes by decreasing an entropy of said each of the one or more user identification codes by K bits;

(c) modifying the one or more corresponding secondary identification codes by increasing an entropy of said each of the one or more corresponding secondary identification codes by M bits to generate a post ID code for each of the one or more user devices; and

(d) using the post ID code to represent each of the one or more user devices when providing the one or more spatial positions for each of the one or more user devices.

12. The method as claimed in claim 11, wherein the one or more user identification codes are one or more MAC codes of the one or more user devices.

13. The method as claimed in claim 11, wherein the mapping function is a logical operation.

14. The method as claimed in claim 13, wherein the logical operation includes at least one of:

a logical AND function, a logical OR function, a logical XOR function.

15. The method as claimed in claim 11, wherein the method includes modifying the entropy of the one or more corresponding secondary identification codes by spreading the one or more corresponding secondary identification codes pseudo-randomly around a post-ID space as employed by the system to represent the one or more user devices within the system.

16. The method as claimed in claim 11, wherein the method includes spatially distributing a plurality of nodes of the wireless arrangement at mutually different spatial positions within the region.

17. The method as claimed in claim 16, wherein the method includes arranging for the nodes of the wireless arrangement to form a self-configuration wireless communication network for communicating the one or more user identification codes and/or the one or more user identification codes in modified form within the system.

18. The method as claimed in claim 16, wherein the method includes arranging for the nodes of the wireless arrangement to form a peer-to-peer (P2P) wireless communication network for communicating the one or more user identification codes and/or the one or more user identification codes in modified form within the system.

19. The method as claimed in claim 11, wherein the wireless arrangement is configured to utilize at least one node for checking a presence of the one or more user devices within the region.

20. A computer program product comprising a non-transitory computer-readable storage medium having computer-readable instructions stored thereon, the computer-readable instructions being executable by a computerized device comprising processing hardware to execute a method as claimed in claim 11.

21. A method of measuring in an anonymous manner one or more spatial positions of one or more user devices within a region of a system, wherein the system includes a wireless arrangement for receiving signals from the one or more user devices for determining the one or more spatial positions of the one or more user devices, wherein the method includes:

(a) using the wireless arrangement to receive one or more user identification codes from the one or more user devices, wherein the one or more user identification codes include N bits for each of the one or more user devices;

(b) modifying, via the system, the one or more corresponding user identification codes by increasing an entropy of said each of the one or more corresponding user identification codes by M bits;

(c) applying, via the system, a mapping function to map said each of the one or more entropy-increased user identification codes to form one or more corresponding secondary identification codes by decreasing an entropy of each of the one or more corresponding user identification codes by K bits to generate a post ID code for each of the one or more user devices; and

(d) using the post ID code to represent each of the one or more user devices when providing the one or more spatial positions for each of the one or more user devices.