Three-dimensional radio frequency identification tag and environment condition recognition system and method using tag

• US 7,474,220 B2
• Filed: 04/19/2006
• Issued: 01/06/2009
• Est. Priority Date: 06/04/2005
• Status: Expired due to Fees

• Current Assignee: Intellectual Discovery Co., Ltd.
• Original Assignee: Sungkyunkwan University Foundation For Corporate Collaboration (SungKyunKwan University (SKKU))
• Inventors: Choi, Hyouk-ryeol, ROH, Se-Gon, Park, Jin-ho
• Primary Examiner(s): Nguyen, Hung T.
• Application Number:
  US11/379,317
• Publication Number:
  US 20060273905A1
• Time in Patent Office: 993 Days
• Field of Search: 340/572.8, 340/572.7, 340/572.1, 340/572.3, 340/572.4, 340/539.1, 340/568.1, 340/10.1, 340/10.3, 235/375, 235/383, 235/385, 235/492, 235/376, 343/893
• US Class Current: 340/572.7
• CPC Class Codes: G01S 5/0247 Determining attitude
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: G06K 19/07767 the first and second communication means being two different antennas types, e.g. dipole and coil type, or two antennas of the same kind but operating at different frequencies
• CPC Class Codes: G06K 19/07792 the antenna adapted for extending in three dimensions
• CPC Class Codes: G06K 7/10079 the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions

Abstract

A three-dimensional (3D) radio frequency identification (RFID) tag and an environment condition recognition system and method using the 3D RFID tag are provided. The environment condition recognition system capable of recognizing position and orientation of the object includes a plurality of RF tags each having a self identifier ID, being independently disposed, and having an orientation with respect to a main axial direction, an RFID antenna activating the tags and initiating connection with the RF tags, a reader connected to the antenna and reading information of the RF tags, and an analysis unit connected to the reader and collecting and analyzing the information of the tags.

Claims

1. An environment condition recognition system capable of recognizing a position and an orientation of an object, comprising:

a three-dimensional (3D) radio frequency identification (RFID) tag including a plurality of radio frequency (RF) tags independently disposed along main axial directions representing an object, each of the RF tags having a self identifier (ID), and a supporter supporting the tags, the 3D RFID tag being attached to an object having an electromagnetic field shielding function;

an RFID antenna activating the 3D RFID tag and initiating connection with the RF tags;

a reader connected to the antenna and reading information of the RF tags; and

an analysis unit connected to the reader and collecting and analyzing the information of the RF tags.

2. An environment condition recognition system capable of recognizing a position and an orientation of an object, comprising:

a three-dimensional (3D) radio frequency identification (RFID) tag including a plurality of radio frequency (RF) tags independently disposed along main axial directions representing an object, each of the RF tags having a self identifier (ID), and a supporter supporting the tags and having an electromagnetic field shielding function, the 3D RFID tag being attached to an object not having an electromagnetic field shielding function;

an RFID antenna activating the 3D RFID tag and initiating connection with the tag;

a reader connected to the antenna and reading information of the RF tags; and

an analysis unit connected to the reader and collecting and analyzing the information of the RF tags.

3. The environment condition recognition system according to claim 2, further comprising:

a movement unit moving in order to recognize the position and the orientation of the object,

wherein the RFID antenna, the reader, and the analysis unit are built into the movement unit.

4. The environment condition recognition system according to claim 3, wherein each of the RF tags is an active type RF tag or a passive type RF tag.

5. The environment condition recognition system according to claim 4, wherein each of the RF tags has same form and characteristics.

6. The environment condition recognition system according to claim 5, wherein the each of the RF tags is in a same shape, and has same electromagnetic characteristics and frequency band characteristics.

7. An environment condition recognition system capable of recognizing a position and an orientation of an object, comprising:

a plurality of radio frequency (RF) tags having self identifiers (IDs), being independently disposed, and having orientation with respect to main axial directions;

an RFID antenna activating the 3D RFID tag and initiating connection with the tag;

a reader connected to the antenna and reading information of the tag; and

an analysis unit connected to the reader and collecting and analyzing the information of the RF tags,

wherein the plurality of RF tags correspond to the position and the orientation of the object, and are attached to the object so as to match the respective axial directions in an orthogonal coordinate system of the object.

8. The environment condition recognition system according to claim 7, further comprising:

a movement unit moving in order to recognize the position and the orientation of the object,

wherein the RFID antenna, the reader, and the analysis unit are built into the movement unit.

9. The environment condition recognition system according to claim 8, wherein each of the RF tags is an active type RF tag or a passive type RF tag.

10. The environment condition recognition system according to claim 9, wherein each of the RF tags has same form and characteristics.

11. The environment condition recognition system according to claim 10, wherein the each of the RF tags is in a same shape, and has same electromagnetic characteristics and frequency band characteristics.

12. A method of recognizing an environment condition capable of recognizing a position and an orientation of an object, the method comprising:

attaching a plurality of radio frequency (RF) tags to the object, each of the RF tags having a self identifier (ID), being independently disposed, and having orientation with respect to a main axial direction;

detecting the RF tags attached to the object by means of a radio frequency identification (RFID) antenna activating the RF tags and initiating connection with the RF tags, and a reader connected to the antenna and reading information of the RF tags; and

collecting and analyzing the information of the RF tags by means of an analysis unit connected to the reader,

wherein the plurality of RF tags correspond to the position and the orientation of the object, and are attached to the object so as to match the respective axial directions in an orthogonal coordinate system of the object.

13. The method according to claim 12, further comprising:

moving a movement unit for recognizing the position and the orientation of the object,

wherein the RFID antenna, the reader, and the analysis unit are built into the movement unit.