Apparatus and method for sensing photoplethysmogram and fall
AssigneeElectronics and Telecommunications Research Institute
InventorsChan Kyu Park, Jae Hong Kim, Joo Chan Sohn, Jae Yeon Lee, Yun Koo Chung
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Abstract
Disclosed are an apparatus and a method for sensing photoplethysmogram and fall. According to the present invention, the apparatus and for sensing photoplethysmogram and fall may include: a sensor unit that senses acceleration and photoplethysmogram; a photoplethysmogram/fall determining module that synthetically tests sensed acceleration signals and photoplethysmogram signals sensed by the sensor unit to determine whether emergency occurs due to fall or emergency occurs due to photoplethysmogram; and a communication module that transmits the test results.
Claims20
An apparatus for sensing photoplethysmogram and fall comprising:
- a sensor unit that senses acceleration and photoplethysmogram;
- a photoplethysmogram/fall determining module that synthetically tests the acceleration signals and photoplethysmogram signals sensed by the sensor unit to determine whether an emergency occurs due to fall or an emergency occurs due to photoplethysmogram;
- and
- a communication module that transmits the determined results,
- wherein the photoplethysmogram/fall determining module,
- collects and frames the acceleration signals and the photoplethysmogram signals and tests and determines the acceleration signals and the photoplethysmogram signals in a frame unit,
- tests the acceleration signals for one frame to decide whether the user conducts ordinary behavior or falls, and
- classifies and stores the behavior pattern from the acceleration signals of one frame if it is determined that the user conducts ordinary behavior according to the test results.
An apparatus for sensing photoplethysmogram and fall, comprising:
- a sensor unit that senses acceleration and photoplethysmogram;
- a photoplethysmogram/fall determining module that synthetically tests the acceleration signals and photoplethysmogram signals sensed by the sensor unit to determine whether an emergency occurs due to fall or an emergency occurs due to photoplethysmogram;
- and
- a communication module that transmits the determined results,
- wherein the photoplethysmogram/fall determining module,
- collects and frames the acceleration signals and the photoplethysmogram signals and tests and determines the acceleration signals and the photoplethysmogram signals in a frame unit,
- tests the acceleration signals for one frame to decide whether the user conducts ordinary behavior or falls, and
- queries the behavior pattern classified from acceleration signals of at least one frame at other times adjacent to the frame and the test results of the photoplethysmogram signal to determine the emergency due to the fall, if it is determined that the user falls according to the test results.
A method for sensing photoplethysmogram and fall, comprising:
- sensing acceleration signals and photoplethysmogram signals;
- synthetically testing the acceleration signals and the photoplethysmogram to determine whether an emergency occurs due to fall or emergency occurs due to photoplethysmogram;
- collecting and testing the acceleration signals for one frame;
- and
- deciding whether one frame is in an ordinary life period or a fall period according to the test results,
- wherein the determining further includes classifying and storing the behavior pattern from the acceleration signals of one frame if it is determined that the user conducts ordinary behavior according to the test results.
Dependencies are inferred from the claim text.