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RF Data Transmission for Echo Control Lower Limb Prosthesis

RF Data Transmission for Echo Control Lower Limb Prosthesis. Tanvi Kalra 1 , Deepak Joshi 2 and Sneh Anand 2 1- Department of Biomedical Engineering, Rayat & Bahra Institute of Engineering & Bio-Technology, Punjab 2 - Centre for Biomedical Engineering, Indian Institute of Technology – Delhi.

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RF Data Transmission for Echo Control Lower Limb Prosthesis

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  1. RF Data Transmission for Echo Control Lower Limb Prosthesis Tanvi Kalra1, Deepak Joshi2 and Sneh Anand2 1- Department of Biomedical Engineering, Rayat & Bahra Institute of Engineering & Bio-Technology, Punjab 2 - Centre for Biomedical Engineering, Indian Institute of Technology – Delhi

  2. CONTENTS: • Introduction • Block diagram • Transmitter module • Receiver module • Results • Snapshots • Conclusion • References

  3. INTRODUCTION • Previous study (Deepak Joshi, et. al.; IJBBR) has proved the knee angle to be a potential parameter to develop Echo Control Prosthesis. • Knee Angle measurement system (Deepak Joshi, et. al.; JMET) was found to be quite accurate at the lower range of knee angle (0° - 50°). • Normal range of walking pattern. • Wireless RF Transmission System ( reduce discomfort) • Data – above knee amputee • Low cost system • Uses minimal number of electronic components

  4. BLOCK DIAGRAM

  5. TRANSMITTER MODULE

  6. RECEIVER MODULE

  7. RESULTS (a) Figure 1: Knee-Angle Measurement System (developed in lab, CBME, IITD) Figure 2(a)-(e): These snap shots shows the orderly change in the data at both the ends (channel 1- transmitter end, channel 2 – receiver end)

  8. SNAPSHOTS (b) (c) (d) (e)

  9. CONCLUSION • Results (CRO) - Faithful signal transmission • Knee angle changes at the transmitter end & • the same change is observed at the receiver end. • i.e. ch1 & ch2 resp. • Direct application in Echo Control Lower • Limb Prosthesis • And other wireless medical devices

  10. REFRENCES • Deepak Joshi, Sneh Anand. Study of circular cross correlation and phase • lag to estimate knee angle: an application to prosthesis; Int. J. Biomechatronics • and Biomedical Robotics [in press] • Roozbeh Borjain, Mir Behrad Khamesee, William Melek. Feasibility study on • echo control of a prosthetic knee: sensor and wireless communication; • Microsyst Technol, Vol.16, No.257-265 [2010] • Deepak Joshi et.al. kinematics-coordinated walking pattern based on embedded • controls; journal of medical engineering & technology [in press] • http://www.rentron.com/rf_remote_control.htm • http://pdf1.alldatasheet.com/datasheet-pdf/view/82103/HOLTEK/HT640.html • http://pdf1.alldatasheet.com/datasheet-pdf/view/64465/HOLTEK/HT648L.html

  11. Any Questions ? THANK YOU

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