APPARATUS AND A METHOD FOR RECOGNIZING AN ACTIVITY OF DAILY LIVING

• US 20090179739A1
• Filed: 06/06/2008
• Published: 07/16/2009
• Est. Priority Date: 01/14/2008
• Status: Active Grant

• Current Assignee: Korea Advanced Institute of Science and Technology
• Original Assignee: Electronics and Telecommunications Research Institute, Korea Advanced Institute of Science and Technology
• Inventors: KIM, Hyoung Gon, KIM, Ig Jae, AHN, Sang Chul
• Granted Patent: US 7,978,075 B2
• Time in Patent Office: Days
• US Class Current: 340/10.100
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/1123 Discriminating type of movement, e.g. walking or running A61B5/1116, A61B5/112 take precedence
• CPC Class Codes: A61B 5/7264 Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems neural networks per se G06N3/00; expert systems per se G06N5/00
• CPC Class Codes: H04Q 2213/13095 PIN / Access code, authentication

Abstract

Provided is an apparatus for recognizing an activity of daily living (ADL). The apparatus includes a radio frequency identification (RFID) reader for reading the information of an RFID tag to recognize a motion object, a motion detector attached on a moving subject for acquiring acceleration information and recognizing a motion characteristic, and a controller for receiving information on the motion object from the RFID reader and information on the motion characteristic from the motion detector and then recognizing an ADL.

Claims

1. An apparatus for recognizing an activity of daily living (ADL), the apparatus comprising:

a radio frequency identification (RFID) reader for reading information of an RFID tag to recognize a motion object;

a motion detector attached on a moving subject for acquiring acceleration information and recognizing a motion characteristic; and

a controller for receiving information on the motion object from the RFID reader and information on the motion characteristic from the motion detector and then recognizing an ADL.

2. The apparatus according to claim 1, wherein the RFID tag is attached on the motion object.

3. The apparatus according to claim 1, wherein the controller recognizes a motion type of the moving subject based on the motion characteristic information received from the motion detector, and then recognizes the motion object based on the motion object information received from the RFID reader, thereby recognizing the ADL.

4. The apparatus according to claim 3, wherein the controller classifies the motion characteristic information received from the motion detector, into predetermined motion type classes, and recognizes the ADL only when the relationship between the classified motion type classes and the motion object information received from the RFID reader is established.

5. The apparatus according to claim 4, wherein the motion type classes include and up-and-down motion, a down-and-up motion, a left-and-right motion, a right-and-left motion, a front-and-back motion, a back-and-front motion and a rotational motion.

6. The apparatus according to claim 1, wherein the controller recognizes the motion object based on the motion object information received from the RFID reader, and then recognizes a motion type only when the motion coincides with an essential behavior of the recognized motion object, thereby recognizing the ADL.

7. A method for recognizing an activity of daily living (ADL), the method comprising the steps of:

recognizing a characteristic of a motion by acquiring acceleration information for the motion of a moving subject;

recognizing a motion object by reading the information of an RFID tag; and

recognizing an ADL by receiving information on the recognized motion characteristic and information on the recognized motion object.

8. The method according to claim 7, wherein recognizing the motion characteristic includes the steps of:

recognizing the current state of the body of the moving subject based on the motion characteristic information for the lower part of the body; and

recognizing a detailed motion characteristic based on the motion characteristic information for the upper part of the body of the moving subject.

9. The method according to claim 7, wherein recognizing the ADL includes the steps of:

classifying the received motion characteristic information into predetermined motion type classes; and

recognizing the motion characteristic information as the ADL only when the relationship between the classified motion type classes and the received motion object information is established.

10. The method according to claim 9, wherein the motion type classes include an up-and-down motion, a down-and-up motion, a left-and-right motion, a right-and-left motion, a front-and-back motion, a back-and-front motion, and a rotational motion.

11. A method for recognizing an activity of daily living (ADL), the method comprising the steps of:

recognizing a motion object by reading the information of an RFID tag;

acquiring a motion characteristic information of a moving subject only when a motion coincides with an essential behavior of the recognized object; and

recognizing an ADL by receiving information on the recognized motion characteristic and information on the recognized motion object.