Title :
Design of a Low-Frequency Microphone for Mobile Phones and Its Application to Ubiquitous Medical and Healthcare Monitoring
Author :
Watanabe, Kajiro ; Kurihara, Yosuke ; Nakamura, Tetsuo ; Tanaka, Hiroshi
Author_Institution :
Syst. Control Eng. Dept., Hosei Univ., Koganei, Japan
fDate :
5/1/2010 12:00:00 AM
Abstract :
This paper describes a novel strategy for providing ubiquitous medical and healthcare monitoring through the use of a mobile phone equipped with a low-frequency microphone sensitive to pressure waves in the frequency range of 0.1 Hz to 10 kHz. The mobile phone is placed in a sealed air cushion under the pillow or mattress of the subject´s bed. The low-frequency microphone in the mobile phone picks up the signals from the subject´s heartbeat, respiration, body movement and snoring and transmits them to a healthcare center where an auto-diagnosing system or specialist monitors the subject´s health condition.
Keywords :
biomedical measurement; health care; microphones; mobile handsets; patient monitoring; autodiagnosing system; body movement; frequency 0.1 kHz to 10 kHz; healthcare monitoring; heartbeat; low frequency microphone; mattress; mobile phones; pillow; respiration; sealed air cushion; snoring; ubiquitous medical monitoring; Acoustic sensors; Biomedical monitoring; Frequency estimation; Heart beat; Helium; Medical services; Microphones; Mobile handsets; Sensor phenomena and characterization; Sleep apnea; Healthcare; low-frequency microphone; mobile phone; sleep depth estimation; ubiquitous medicine;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2009.2038230