| Summary: | 碩士 === 中原大學 === 電子工程研究所 === 103 === In recent years, elder population grows consistently in the world. In particular, Taiwan’s elder population grows faster than the others of the world because of the very low birth rate. Taiwan has been become an aged society and then the geriatric care become important issues in Taiwan. One important test about the geriatric care is called Timed Up and Go Test. It is recommended as a screening tool for fall risk in elder people. In traditional, occupational therapist uses stopwatch to achieve this test. In this thesis, we want to implement a system to do the Timed Up-and-Go Test automatically. Smart phone is a good choice, because it equipped many sensors like triaxial accelerometer and gyroscope and wireless telecommunications like WiFi and Bluetooth. Another advantage to use mobile phone is that when doing field test it doesn’t need to deploy any else device. We analyzed human motion depends on Three-Axis Acceleration. In our system we use two smartphones as the measurement device, the first one is called control device, and the another one is called sensor device. Subject wears sensor device to perform test, occupational therapist observes test data on control device. Our algorithm can determine the steps while subject walks, and can also distinguish between object’s state of sitting and walking. This thesis also compares the traditional test method with ours. Experiments show that there is no significant different between them.
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