| 摘要 |
A motion monitoring system and a method of obtaining and analyzing motion data that uses an accelerometer or an image capture device to acquire subject motion data. The motion data may be obtained from an accelerometer applied to a chest of the subject, or from an image capture device configured to view the subject during the detected motion. The motion data is analyzed to distinguish between a seizure type of motion and a non-seizure type of motion, with the subject motion characterized by at least one of, and combinations of, motion amplitude or magnitude, motion period or frequency, motion bandwidth, subject position, and subject change in position over a time period of the detected motion. The system and method further includes the generation of an output in response to an identification of the seizure and non-seizure types of motion. |
| 主权项 |
1. A method of distinguishing between a first type of motion and a second type of motion of a subject characterized by a signal corresponding to the first and second types of motions, the method comprising:
receiving the signal at a processor, the signal being representative of subject motion data of the subject, the subject motion data including subject position data and subject change-in-position data; analyzing, by the processor, the subject motion data to distinguish between the first type of motion occurring over a first time period and the second type of motion occurring over a second time period, wherein the first type of motion is characterized by:
a first bandwidth that is inclusively within a first bandwidth range,the subject position data indicating that the subject is in a recumbent orientation throughout the first time period, the recumbent orientation defined by an initial calibration during which the subject is in the recumbent position while defining an offset angle between a subject axis extending from the subject and a vertical axis, the recumbent orientation further defined by the subject axis remaining inclusively within an offset angle range throughout the first time period, andthe subject change-in-position data indicating that a first rotation parameter of the subject change-in-position data is inclusively within a rotation range throughout the first time period, and wherein the second type of motion is characterized by:
a second bandwidth that is inclusively within a second bandwidth range,the subject position data indicating that the subject is in an upright orientation throughout the second time period, the upright orientation defined by the offset angle equaling or exceeding an offset angle threshold throughout the second time period, andthe subject change-in-position data indicating that a second rotation parameter of the subject change-in-position data is greater than a rotation threshold throughout the second time period; and generating a first output from the processor in response to an identification of the first type of motion and generating a second output from the processor in response to an identification of the second type of motion. |
