REAL-TIME MOVEMENT PATH ESTIMATION APPARATUS AND METHOD USING VISIBLE LIGHT COMMUNICATION

• US 20140236480A1
• Filed: 09/05/2013
• Published: 08/21/2014
• Est. Priority Date: 02/20/2013
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Kang, Tae-Gyu, Sung, Jung-Sik, Kim, Myung-Soon, Park, Seong-Hee, Lim, Sang-Kyu, Jang, Il-Soon, Kim, You-Jin, Kim, Dae-Ho, Kim, Hyun-Seok, Kim, Hyun-Jong, Kang, Hyun-Chul, Kang, Hyun-Joo, Kim, In-Su, Jeong, Jin-Doo
• Application Number:
  US14/018,468
• Publication Number:
  US 20140236480A1
• Time in Patent Office: Days
• US Class Current: 701/519
• CPC Class Codes: G01C 21/3602 Input other than that of destination using image analysis, e.g. detection of road signs, lanes, buildings, real preceding vehicles using a camera
• CPC Class Codes: G08G 1/0112 from the vehicle, e.g. floating car data [FCD]
• CPC Class Codes: G08G 1/0129 for creating historical data or processing based on historical data
• CPC Class Codes: G08G 1/202 Dispatching vehicles on the basis of a location, e.g. taxi dispatching
• CPC Class Codes: G08G 1/205 Indicating the location of the monitored vehicles as destination, e.g. accidents, stolen, rental

Abstract

The present invention relates to a real-time movement path estimation apparatus using visible light communication. A server for performing communication with an agent for tracking a location of a client which is a target to be tracked includes an agent management unit for setting the agent and the client. A server communication unit receives management information of the agent at intervals of a preset monitoring period. A path prediction unit derives a predicted path for a movement path of the client, based on the location information of the client included in the management information and tracked by a location determination device including a visible light communication device or an image capturing device in the agent.

Claims

1. A server for performing communication with an agent for tracking a location of a client which is a target to be tracked, comprising:

an agent management unit for setting the agent and the client;

a server communication unit for receiving management information of the agent at intervals of a preset monitoring period; and

a path prediction unit for deriving a predicted path for a movement path of the client, based on the location information of the client included in the management information and tracked by a location determination device including a visible light communication device or an image capturing device in the agent.

2. The server of claim 1, further comprising a statistical data generation unit for receiving an actual movement path of the client from the agent through the server communication unit, and generating feedback information by comparing the actual movement path with the predicted path.

3. The server of claim 2, wherein the statistical data generation unit further generates statistical data used to derive the predicted path based on the feedback information.

4. The server of claim 1, wherein the agent management unit comprises:

an agent setting module for setting an agent desired to be managed in response to input from a user; and

a client setting module for setting a client desired to be tracked in response to the input from the user.

5. The server of claim 4, wherein the agent management unit is configured to, if the client is changed through the client setting module, generate client list information, and then transmit the client list information to the agent through the server communication unit.

6. The server of claim 1, wherein the agent management unit comprises a monitoring period setting module for variably adjusting the monitoring period in response to input from a user.

7. The server of claim 1, wherein the agent management unit is configured to, if information about the client is not included in the management information, collect management information of the agent through the server communication unit until information about the client is received.

8. The server of claim 1, wherein the server communication unit is configured to, if a monitoring stop request is received from a user, transmit monitoring stop request information to the agent.

9. An agent for tracking a location of a client which is a target to be tracked, comprising:

an agent communication unit for receiving client list information including a client which is a target to be tracked from a server;

a location determination device search unit for searching for a location determination device including a visible light communication device or an image capturing device; and

a location determination unit for determining location information of the client using the found location determination device,

wherein the agent communication unit transmits the location information of the client determined by the location determination unit to the server.

10. The agent of claim 9, wherein the location determination unit is configured to, if the image capturing device is present in the location determination device, identify the client using the image capturing device and determine the location of the client based on video and audio information of the identified client.

11. The agent of claim 9, wherein the location determination unit is configured to, if an image capturing device is not present and a visible light communication device is present in the location determination device, determine whether visible light communication with other agents falling within a preset range is possible.

12. The agent of claim 11, wherein the location determination unit is configured to, if the visible light communication is possible, compare pieces of location information of the client tracked by the other agents falling within the preset range with each other and receive the location information of the client if the pieces of location information of the client tracked by the other agents are identical to each other.

13. The agent of claim 11, wherein the location determination unit is configured to, if pieces of location information of the client are not identical to each other, monitor a location determination device at intervals of a preset monitoring period.

14. The agent of claim 9, wherein the location determination unit is configured to, if neither the image capturing device nor the visible light communication device is present in the location determination device, determine the location of the client based on the client list information.

15. The agent of claim 9, further comprising a validity verification unit for mapping the client list information transmitted from the server to client list information included in the management information of the agent, and verifying validity of the client list information transmitted from the server.

16. The agent of claim 9, wherein if monitoring stop request information is received from the server, internal processing of the agent is stopped.