USER-PARTICIPATION DATA SORTING APPARATUS AND METHOD FOR UPDATING POSITIONING INFRASTRUCTURE DATABASE

• US 20180262881A1
• Filed: 08/11/2017
• Published: 09/13/2018
• Est. Priority Date: 03/13/2017
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: JI, Myung-In, CHO, Young-Su, KIM, Joo-Young, JEON, Ju-ll, PARK, Sang-Joon
• Granted Patent: US 10,390,179 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 4/026 using orientation information, e.g. compass
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 4/33 for indoor environments, e.g. buildings

Abstract

Disclosed herein are a user-participation data selection apparatus and method for updating a positioning infrastructure DB. The user user-participation data selection apparatus includes a data communication unit for transmitting and receiving user-participation data, a movement path reconstruction unit for reconstructing an entire information movement path corresponding to the user-participation data using all information included in the user-participation data, a reliability calculation unit for calculating reliability corresponding to the entire information movement path, and a data selection unit for selecting update-use data for updating a positioning infrastructure DB based on the reliability.

Claims

1. A user-participation data selection apparatus for updating a positioning infrastructure database (DB), comprising:

a data communication unit for transmitting and receiving user-participation data;

a movement path reconstruction unit for reconstructing an entire information movement path corresponding to the user-participation data using all information included in the user-participation data;

a reliability calculation unit for calculating reliability corresponding to the entire information movement path; and

a data selection unit for selecting update-use data for updating a positioning infrastructure DB based on the reliability.

2. The user-participation data selection apparatus of claim 1, wherein the movement path reconstruction unit further reconstructs intermittent information movement paths corresponding to the user-participation data by intermittently using information included in the user-participation data, in addition to the entire information movement path.

3. The user-participation data selection apparatus of claim 2, wherein the reliability calculation unit calculates errors corresponding to respective intermittent information movement paths based on the entire information movement path, and then calculates the reliability using a value obtained by accumulating the errors.

4. The user-participation data selection apparatus of claim 3, wherein the movement path reconstruction unit uses a particle filter when reconstructing the entire information movement path and the intermittent information movement paths.

5. The user-participation data selection apparatus of claim 4, wherein:

the data communication unit further receives positioning infrastructure data, and

the movement path reconstruction unit uses the positioning infrastructure data when reconstructing the entire information movement path and the intermittent information movement paths.

6. The user-participation data selection apparatus of claim 5, wherein the user-participation data includes one or more of wireless communication infrastructure scan information, step count information, and movement direction information.

7. The user-participation data selection apparatus of claim 6, wherein the movement direction information is processed using one or more of compass information and a gyroscope sensor value of a terminal that has collected the user-participation data.

8. The user-participation data selection apparatus of claim 7, wherein the movement path reconstruction unit uses information about paths through which particles used in the particle filter have passed when reconstructing the entire information movement path and the intermittent information movement paths.

9. The user-participation data selection apparatus of claim 7, wherein the movement path reconstruction unit uses information about directions in which particles used in the particle filter have moved when reconstructing the entire information movement path and the intermittent information movement paths.

10. A user-participation data selection method for updating a positioning infrastructure database (DB), comprising:

receiving user-participation data;

reconstructing an entire information movement path corresponding to the user-participation data using all information included in the user-participation data;

calculating reliability corresponding to the entire information movement path;

selecting update-use data for updating a positioning infrastructure DB based on the reliability; and

transmitting the update-use data.

11. The user-participation data selection method of claim 10, further comprising reconstructing intermittent information movement paths corresponding to the user-participation data by intermittently using information included in the user-participation data.

12. The user-participation data selection method of claim 11, wherein calculating the reliability comprises:

calculating errors corresponding to respective intermittent information movement paths based on the entire information movement path; and

calculating the reliability using a value obtained by accumulating the errors.

13. The user-participation data selection method of claim 12, wherein:

reconstructing the entire information movement path is configured to use a particle filter when reconstructing the entire information movement path, and

reconstructing the intermittent information movement paths is configured to use the particle filter when reconstructing the intermittent information movement paths.

14. The user-participation data selection method of claim 13, further comprising receiving positioning infrastructure data,

wherein reconstructing the entire information movement path is configured to use the positioning infrastructure data when reconstructing the entire information movement path, and

wherein reconstructing the intermittent information movement paths is configured to use the positioning infrastructure data when reconstructing the intermittent information movement paths.

15. The user-participation data selection method of claim 14, wherein the received user-participation data includes one or more of wireless communication infrastructure scan information, step count information, and movement direction information.

16. The user-participation data selection method of claim 15, wherein the movement direction information is processed using one or more of compass information and a gyroscope sensor value of a terminal that has collected the user-participation data.

17. The user-participation data selection method of claim 16, wherein:

reconstructing the entire information movement path is configured to use information about paths through which particles used in the particle filter have passed when reconstructing the entire information movement path, and

reconstructing the intermittent information movement paths is configured to use the information about the paths through which the particles used in the particle filter have passed when reconstructing the intermittent information movement paths.

18. The user-participation data selection method of claim 16, wherein:

reconstructing the entire information movement path is configured to use information about directions in which particles used in the particle filter have moved when reconstructing the entire information movement path, and

reconstructing the intermittent information movement paths is configured to use the information about the directions in which the particles used in the particle filter have moved when reconstructing the intermittent information movement paths.