Load Position Estimation Method for Wearable Devices Based on Difference in Pulse Wave Arrival Time
With the increasing use of wearable devices equipped with various sensors, information on human activities, biometrics, and surrounding environments can be obtained via sensor data at any time and place. When such devices are attached to arbitrary body parts and multiple devices are used to capture...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-01-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/3/1090 |
| _version_ | 1827658654518607872 |
|---|---|
| author | Kazuki Yoshida Kazuya Murao |
| author_facet | Kazuki Yoshida Kazuya Murao |
| author_sort | Kazuki Yoshida |
| collection | DOAJ |
| description | With the increasing use of wearable devices equipped with various sensors, information on human activities, biometrics, and surrounding environments can be obtained via sensor data at any time and place. When such devices are attached to arbitrary body parts and multiple devices are used to capture body-wide movements, it is important to estimate where the devices are attached. In this study, we propose a method that estimates the load positions of wearable devices without requiring the user to perform specific actions. The proposed method estimates the time difference between a heartbeat obtained by an ECG sensor and a pulse wave obtained by a pulse sensor, and it classifies the pulse sensor position from the estimated time difference. Data were collected at 12 body parts from four male subjects and one female subject, and the proposed method was evaluated in both user-dependent and user-independent environments. The average F-value was 1.0 when the number of target body parts was from two to five. |
| first_indexed | 2024-03-09T23:07:41Z |
| format | Article |
| id | doaj.art-476b04f4f0e44080963a6e2d389f8f7a |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T23:07:41Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-476b04f4f0e44080963a6e2d389f8f7a2023-11-23T17:50:20ZengMDPI AGSensors1424-82202022-01-01223109010.3390/s22031090Load Position Estimation Method for Wearable Devices Based on Difference in Pulse Wave Arrival TimeKazuki Yoshida0Kazuya Murao1Graduate School of Information Science and Engineering, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-8577, Shiga, JapanGraduate School of Information Science and Engineering, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-8577, Shiga, JapanWith the increasing use of wearable devices equipped with various sensors, information on human activities, biometrics, and surrounding environments can be obtained via sensor data at any time and place. When such devices are attached to arbitrary body parts and multiple devices are used to capture body-wide movements, it is important to estimate where the devices are attached. In this study, we propose a method that estimates the load positions of wearable devices without requiring the user to perform specific actions. The proposed method estimates the time difference between a heartbeat obtained by an ECG sensor and a pulse wave obtained by a pulse sensor, and it classifies the pulse sensor position from the estimated time difference. Data were collected at 12 body parts from four male subjects and one female subject, and the proposed method was evaluated in both user-dependent and user-independent environments. The average F-value was 1.0 when the number of target body parts was from two to five.https://www.mdpi.com/1424-8220/22/3/1090wearable devicewearable sensorload position estimationelectrocardiogram (ECG)heartbeatpulse wave |
| spellingShingle | Kazuki Yoshida Kazuya Murao Load Position Estimation Method for Wearable Devices Based on Difference in Pulse Wave Arrival Time Sensors wearable device wearable sensor load position estimation electrocardiogram (ECG) heartbeat pulse wave |
| title | Load Position Estimation Method for Wearable Devices Based on Difference in Pulse Wave Arrival Time |
| title_full | Load Position Estimation Method for Wearable Devices Based on Difference in Pulse Wave Arrival Time |
| title_fullStr | Load Position Estimation Method for Wearable Devices Based on Difference in Pulse Wave Arrival Time |
| title_full_unstemmed | Load Position Estimation Method for Wearable Devices Based on Difference in Pulse Wave Arrival Time |
| title_short | Load Position Estimation Method for Wearable Devices Based on Difference in Pulse Wave Arrival Time |
| title_sort | load position estimation method for wearable devices based on difference in pulse wave arrival time |
| topic | wearable device wearable sensor load position estimation electrocardiogram (ECG) heartbeat pulse wave |
| url | https://www.mdpi.com/1424-8220/22/3/1090 |
| work_keys_str_mv | AT kazukiyoshida loadpositionestimationmethodforwearabledevicesbasedondifferenceinpulsewavearrivaltime AT kazuyamurao loadpositionestimationmethodforwearabledevicesbasedondifferenceinpulsewavearrivaltime |