Title :
Monitoring of body movement during sleep in bed
Author :
Tamura, Toshiyo ; Nishigaichi, Atsushi ; Nomura, Toshimitsu
Author_Institution :
Dept. of Electr. & Electron. Eng., Yamaguchi Univ., Yamaguchi, Japan
fDate :
Oct. 29 1992-Nov. 1 1992
Abstract :
Abstract-For assessment of body movement during sleep, a system for monitoring pressure in bed has been developed. The system consists of an optical fiber pressure sensor and a notebook personal computer with an A/D converter. Changes in optical intensity due to changes in pressure were detected, then converted to voltage output and transferred to the computer. The lime of body movement was determined when two of three signals changed. Upon comparison with a video recording, this estimation showed good agreement. Pressure measurement in bed provides a high-resolution estimate of posture change during sleep.
Keywords :
fibre optic sensors; patient monitoring; pressure sensors; sleep; A/D converter; body movement monitoring; notebook personal computer; optical fiber pressure sensor; optical intensity; pressure monitoring; sleep; Biomedical monitoring; Biomedical optical imaging; Monitoring; Optical amplifiers; Optical sensors; Stimulated emission;
Conference_Titel :
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location :
Paris
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1992.5761888
