Method and apparatus for delivering data based on sensor network

• US 20090128324A1
• Filed: 06/27/2008
• Published: 05/21/2009
• Est. Priority Date: 11/16/2007
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Sung, Kyung Bok, Kim, Do Hyun, Choi, Jeong Dan, Kim, Kyeong Tae, Jang, Byung Tae, Kim, Jung Sook, Yoo, Jae Jun, Lim, Jae Han, Jang, Jeong Ah
• Granted Patent: US 7,994,942 B2
• Time in Patent Office: Days
• US Class Current: 340/539.200
• CPC Class Codes: G08G 1/096791 where the origin of the information is another vehicle
• CPC Class Codes: G08G 1/20 Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles

Abstract

The present invention relates to a method and apparatus for delivering data based on a sensor network. According to an embodiment of the present invention, the apparatus for delivering data is provided in a means of transportation such as a vehicle, activates a node of a corresponding sensor network when a vehicle enters a road segment, and receives data from the transmission node. Then, the apparatus for delivering data calculates an optimum path along which the received data is delivered to a target destination, determines whether to use other vehicles or to directly deliver the data to the target destination on the basis of the calculated optimum path, and delivers the data to the target destination by the determined method. In this case, the target destination to which the data is delivered may be a different node of the same sensor network, or may be a node or a center of a different sensor network.

Claims

1. A method of delivering data of an apparatus for delivering data that is provided in a means of transportation, the method comprising:

receiving data from a transmission node of a first sensor network;

calculating an optimum path along which the data is delivered, on the basis of destination information included in the data;

selecting one of a delivery target destination corresponding to the destination information and at least one means of transportation that is positioned in a region determined on the basis of the means of transportation as a data destination, based on a relation between the optimum path and one of a first movement path of the means of transportation and at least one second movement path received from the at least one means of transportation positioned; and

delivering the data to the data destination.

2. The method of claim 1, wherein the receiving of the data includes:

activating the transmission node by transmitting a first beacon to the transmission node; and

deactivating the transmission node by transmitting a second beacon to the transmission node when the data and the destination information are received.

3. The method of claim 1, wherein the calculating of the optimum path includes:

calculating the optimum path by using disposition information of a center when the delivery target destination is the center; and

calculating the optimum path by using node disposition information of a center network including a receiving node when the delivery target destination is the receiving node.

4. The method of claim 1, wherein the selecting of the data destination includes selecting the delivery target destination as the data destination when the optimum path and the first movement path correspond to each other.

5. The method of claim 4, wherein the selecting of the data destination includes:

receiving the at least one second movement path when the optimum path and the first movement path do not correspond to each other;

calculating a segment matching hit rate between the second movement path corresponding to each of at least one means of transportation and the optimum path;

calculating real-time traffic information of a certain means of transportation of which segment matching hit rate is a predetermined value or more;

calculating time, which is required to deliver data to the delivery target destination for the certain means of transportation;

selecting an optimum means of transportation on the basis of the real-time traffic information and the required time; and

selecting the optimum means of transportation as the data destination.

6. The method of claim 5, wherein the delivering of the data includes delivering the data and the optimum path to the optimum means of transportation when the data destination is the optimum means of transportation.

7. The method of claim 1, wherein the delivery target destination is a receiving node of the second sensor network.

8. The method of claim 7, wherein the delivering of the data includes:

activating the receiving node by transmitting the first beacon to the receiving node when the data destination is the receiving node;

delivering the data to the receiving node; and

deactivating the receiving node by transmitting the second beacon to the receiving node.

9. An apparatus for delivering data, the apparatus comprising:

a map database that stores node disposition information of a plurality of sensor networks; and

an analysis unit that calculates an optimum path on the basis of destination information included in data received from a transmission node of a first sensor network and node disposition information corresponding to a first sensor network, compares a movement path of corresponding means of transportation and at least one of movement paths of at least one means of transportation positioned in a predetermined region determined on the basis of the means of transportation with the optimum path, and delivers the data to one of a delivery target destination and at least one means of transportation.

10. The apparatus of claim 9, wherein the destination information corresponds to a receiving node of a second sensor network different from the first sensor network.