Innovative Head-Mounted System Based on Inertial Sensors and Magnetometer for Detecting Falling Movements
This work presents a fall detection system that is worn on the head, where the acceleration and posture are stable such that everyday movement can be identified without disturbing the wearer. Falling movements are recognized by comparing the acceleration and orientation of a wearer’s head using pres...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-10-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/20/20/5774 |
| _version_ | 1827704498696486912 |
|---|---|
| author | Chih-Lung Lin Wen-Ching Chiu Ting-Ching Chu Yuan-Hao Ho Fu-Hsing Chen Chih-Cheng Hsu Ping-Hsiao Hsieh Chien-Hsu Chen Chou-Ching K. Lin Pi-Shan Sung Peng-Ting Chen |
| author_facet | Chih-Lung Lin Wen-Ching Chiu Ting-Ching Chu Yuan-Hao Ho Fu-Hsing Chen Chih-Cheng Hsu Ping-Hsiao Hsieh Chien-Hsu Chen Chou-Ching K. Lin Pi-Shan Sung Peng-Ting Chen |
| author_sort | Chih-Lung Lin |
| collection | DOAJ |
| description | This work presents a fall detection system that is worn on the head, where the acceleration and posture are stable such that everyday movement can be identified without disturbing the wearer. Falling movements are recognized by comparing the acceleration and orientation of a wearer’s head using prespecified thresholds. The proposed system consists of a triaxial accelerometer, gyroscope, and magnetometer; as such, a Madgwick’s filter is adopted to improve the accuracy of the estimation of orientation. Moreover, with its integrated Wi-Fi module, the proposed system can notify an emergency contact in a timely manner to provide help for the falling person. Based on experimental results concerning falling movements and activities of daily living, the proposed system achieved a sensitivity of 96.67% in fall detection, with a specificity of 98.27%, and, therefore, is suitable for detecting falling movements in daily life. |
| first_indexed | 2024-03-10T15:41:34Z |
| format | Article |
| id | doaj.art-90360272c47241e9b19de3d1b23c1a8a |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T15:41:34Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-90360272c47241e9b19de3d1b23c1a8a2023-11-20T16:45:57ZengMDPI AGSensors1424-82202020-10-012020577410.3390/s20205774Innovative Head-Mounted System Based on Inertial Sensors and Magnetometer for Detecting Falling MovementsChih-Lung Lin0Wen-Ching Chiu1Ting-Ching Chu2Yuan-Hao Ho3Fu-Hsing Chen4Chih-Cheng Hsu5Ping-Hsiao Hsieh6Chien-Hsu Chen7Chou-Ching K. Lin8Pi-Shan Sung9Peng-Ting Chen10Department of Electrical Engineering, National Cheng Kung University, Tainan City 701, TaiwanDepartment of Electrical Engineering, National Cheng Kung University, Tainan City 701, TaiwanDepartment of Electrical Engineering, National Cheng Kung University, Tainan City 701, TaiwanDepartment of Electrical Engineering, National Cheng Kung University, Tainan City 701, TaiwanDepartment of Electrical Engineering, National Cheng Kung University, Tainan City 701, TaiwanDepartment of Electrical Engineering, National Cheng Kung University, Tainan City 701, TaiwanGarmin Asia Corporation, New Taipei City 221, TaiwanDepartment of Industrial Design, National Cheng Kung University, Tainan City 701, TaiwanDepartment of Neurology, National Cheng Kung University Hospital, Tainan City 704, TaiwanDepartment of Neurology, National Cheng Kung University Hospital, Tainan City 704, TaiwanDepartment of Biomedical Engineering, National Cheng Kung University, Tainan City 701, TaiwanThis work presents a fall detection system that is worn on the head, where the acceleration and posture are stable such that everyday movement can be identified without disturbing the wearer. Falling movements are recognized by comparing the acceleration and orientation of a wearer’s head using prespecified thresholds. The proposed system consists of a triaxial accelerometer, gyroscope, and magnetometer; as such, a Madgwick’s filter is adopted to improve the accuracy of the estimation of orientation. Moreover, with its integrated Wi-Fi module, the proposed system can notify an emergency contact in a timely manner to provide help for the falling person. Based on experimental results concerning falling movements and activities of daily living, the proposed system achieved a sensitivity of 96.67% in fall detection, with a specificity of 98.27%, and, therefore, is suitable for detecting falling movements in daily life.https://www.mdpi.com/1424-8220/20/20/5774fall detectionorientation filtertriaxial accelerometertriaxial gyroscopetriaxial magnetometersignal detecting and processing |
| spellingShingle | Chih-Lung Lin Wen-Ching Chiu Ting-Ching Chu Yuan-Hao Ho Fu-Hsing Chen Chih-Cheng Hsu Ping-Hsiao Hsieh Chien-Hsu Chen Chou-Ching K. Lin Pi-Shan Sung Peng-Ting Chen Innovative Head-Mounted System Based on Inertial Sensors and Magnetometer for Detecting Falling Movements Sensors fall detection orientation filter triaxial accelerometer triaxial gyroscope triaxial magnetometer signal detecting and processing |
| title | Innovative Head-Mounted System Based on Inertial Sensors and Magnetometer for Detecting Falling Movements |
| title_full | Innovative Head-Mounted System Based on Inertial Sensors and Magnetometer for Detecting Falling Movements |
| title_fullStr | Innovative Head-Mounted System Based on Inertial Sensors and Magnetometer for Detecting Falling Movements |
| title_full_unstemmed | Innovative Head-Mounted System Based on Inertial Sensors and Magnetometer for Detecting Falling Movements |
| title_short | Innovative Head-Mounted System Based on Inertial Sensors and Magnetometer for Detecting Falling Movements |
| title_sort | innovative head mounted system based on inertial sensors and magnetometer for detecting falling movements |
| topic | fall detection orientation filter triaxial accelerometer triaxial gyroscope triaxial magnetometer signal detecting and processing |
| url | https://www.mdpi.com/1424-8220/20/20/5774 |
| work_keys_str_mv | AT chihlunglin innovativeheadmountedsystembasedoninertialsensorsandmagnetometerfordetectingfallingmovements AT wenchingchiu innovativeheadmountedsystembasedoninertialsensorsandmagnetometerfordetectingfallingmovements AT tingchingchu innovativeheadmountedsystembasedoninertialsensorsandmagnetometerfordetectingfallingmovements AT yuanhaoho innovativeheadmountedsystembasedoninertialsensorsandmagnetometerfordetectingfallingmovements AT fuhsingchen innovativeheadmountedsystembasedoninertialsensorsandmagnetometerfordetectingfallingmovements AT chihchenghsu innovativeheadmountedsystembasedoninertialsensorsandmagnetometerfordetectingfallingmovements AT pinghsiaohsieh innovativeheadmountedsystembasedoninertialsensorsandmagnetometerfordetectingfallingmovements AT chienhsuchen innovativeheadmountedsystembasedoninertialsensorsandmagnetometerfordetectingfallingmovements AT chouchingklin innovativeheadmountedsystembasedoninertialsensorsandmagnetometerfordetectingfallingmovements AT pishansung innovativeheadmountedsystembasedoninertialsensorsandmagnetometerfordetectingfallingmovements AT pengtingchen innovativeheadmountedsystembasedoninertialsensorsandmagnetometerfordetectingfallingmovements |