Wireless knee joint angle measurement system using gyroscope
Sensors are the eyes of control enabling one to see what is going on. Joint movement measurement system is a type of sensor to give the feedback measurement such angular displacement, angular velocity and angular acceleration. The measurements should be accurate and repeatability in order to g...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2012
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| Online Access: | http://eprints.uthm.edu.my/2466/1/24p%20SUKHAIRI%20SUDIN.pdf http://eprints.uthm.edu.my/2466/2/SUKHAIRI%20SUDIN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/2466/3/SUKHAIRI%20SUDIN%20WATERMARK.pdf |
| Summary: | Sensors are the eyes of control enabling one to see what is going on. Joint movement
measurement system is a type of sensor to give the feedback measurement such
angular displacement, angular velocity and angular acceleration. The measurements
should be accurate and repeatability in order to get good controller’s performance.
This project is concerned on the design and development of wireless joint movement
measurement system specifically for Spinal Cord Injury (SCI) patient by using
Functional Electrical Stimulation (FES) assisted activities such as cycling. FES is
used to activate the paralyzed muscle by giving appropriate electrical signal through
electrodes. Aims of this project are to create portable, wearable and wireless knee
joint angle measurement system. To meet the desired aim if this project, practical and
compact design technique are emphasized in order to create a wearable and usable
product. The design of knee guard should be portable, flexible and at the same time
comfortable while still giving a reasonably good grip to avoid misalignment of
sensor after a few set of movement occur. Two gyroscope sensors are installed on the
knee guard which covers thigh and shank part. Gyroscope provides the orientation of
two axes and this orientation will determine the elevated position of thigh and shank.
Technique of comparison of the position between thigh and shank, provided by both
gyroscopes will generate angles at knee joint. This wireless based system will be
helped to reduce the complexity of wired sensor as well as user-friendly and portable
measuring system. Wireless communication using ZigBee protocol with two Xbee
devices will be used to transfer data from the sensory unit to the computer controlled
system. In sum, with using wireless based system, the movement limitation barrier is
no longer an issue to the user. This device will be developed as a new measuring
technique of joint angle and will be one of the contributing factors in Rehabilitation
Engineering for patients with SCI. |
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