Specific signal pattern detection system from multi-axis sensor, specific signal pattern detection method from multi-axis sensor

摘要

PROBLEM TO BE SOLVED: To generate a specific signal pattern feature map for estimating a context of a person who carries equipment including a multi-axis sensor based upon multi-axis sensor data output from the multi-axis sensor.SOLUTION: A system which detects a featured signal pattern of time-series multi-axis sensor data obtained from the multi-axis sensor acquires a specific signal pattern to be detected in the obtained multi-axis sensor data as dictionary data, and extracts specific signal pattern base sensor data of the dictionary data from a specific signal pattern featured map and a specific signal pattern firing probability map obtained through learning by self-organization algorithm. Dummy data generated by rotating the extracted data on respective axes is learnt by the self-organization algorithm so as to obtain a specific signal pattern featured map and a specific signal pattern firing probability map. Both the maps are used to extract the specific signal pattern from the time-series data obtained by the multi-axis sensor.