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A wearable inertial sensor node for body motion analysis
1. A Wearable Inertial Sensor Node for
Body Motion Analysis
Abstract:
The life expectancy of a human has increased significantly over the past decade. A wearable
wireless inertial sensor node for body motion analysis is designed and implemented. A triaxial
accelerometer, a biaxial gyroscope, and a yaw rate gyroscope are employed to sense the
accelerations and angular rates of the object attached. These three ICs, a wireless mote, the
power circuit, and a modified printed inverted-F antenna are integrated on a four-layer printed
circuit board. To achieve the compact size for comfortable wearing, the printed antenna is
deliberately designed as small as possible, while maintaining a reasonable antenna performance.
The proposed inertial sensor node is also easily adaptable to applications with different power
requirements because of the consideration of the periodic and moving-event wakeup in the
software design. There are many people in our community, who because of age, infirmity,
memory loss or impaired judgment can no longer be totally relied upon, are having pressure put
on them to leave their home to stay in monitored environment and give up their precious
independence.
Existing System:
Some of the studies have demonstrated the feasibility of remotely monitoring activities at
home. It is not convenient to keep on monitoring them through the wired surveillance. So we
need an efficient method to get constant monitoring.
Proposed System:
In this paper, we report the design and development of a sensor network. The physical
status of a person while standing, sitting and jogging is measure through accelerometer and
Gyroscope. We are placing the accelerometer in the chest of a person to measure the acceleration
while moving. This method is to measure the several body motions and those behaviors are
observed apparently. The data’s will be sent wirelessly to PC.
