Abstract: An estimation method for
energy consumption for daily living has been studied by attaching a light-weight
one-chipped IC triple-axis accelerometer with ECG to the sternum. To estimate
energy consumption, posture and movement have to be discriminated by value of
acceleration. The data is obtained via a receiver with wireless connection. Most
of our daily living consists of sleeping in a supine position, sitting down and
standing with slight movement such as when shopping, working in the office,
walking and running. In this study, body movement and posture are discriminated
by acceleration value obtained by direction of gravity. The energy consumption
is discriminated depending on the strength of movement and posture. The energy
consumption is measured by intake and increases in the amount
of in the exhaust breathing and is
related to strength of movement. Energy consumption depends on BMI values. The
ECG waveform, movement and energy consumption can be measured and saved to the
memory simultaneously with one device, and will contribute to diagnose heart
diseases.
Keywords and phrases: accelerometers, energy consumption, transmitters, ECG.
