13th International Conference on Fracture June 16–21, 2013, Beijing, China -9- We hope that the solution should be practical, easy use and should not generate very high costs, as well as safety and immunity to the noise. These characteristics allow that the system should be robust characteristics and easy to reproduce. The persons who have this system must have the possibility of easy movement in a specific area by means of the movement of some part of the body that still has control. The system has the capacity to adjust itself to the characteristics of each individual driver, and thereby is able to improve the efficiency with which it senses the driver's commands. People, for example, do not consciously send commands to every muscle in each leg in order to walk and do not think where to step to avoid an. Similarly, a wheelchair-bound user of the project simply has to send the signal to go in a certain direction and the chair figures out how to get there. A person using the final project to control a wheelchair, for example, only has to move your head about going straight ahead or turning left and the chair follows their command. However, they do not have to worry about colliding with obstacles because the wheelchair itself monitors and reacts to its environment.[5] The fact that is an infrared system allows being immune to electrical noise, as generated by the electric chairs and allows low costs and easy design of engineering. These characteristics are desirable to reduce costs and to make the project possible. References [1] A. Biocca, A survey of position trackers, Presence: Teleoperators and Virtual Environments, v.1 n.2, p.173-200, Spring 1999 [2] A. B. Zoss, H. Kazerooni, A. Chu, “Biomechanical design of the Berkeley Lower Extremity Exoskeleton (BLEEX)“, IEEE/ASME Trans. Mechatronics, vol. 11, no. 2, pp. 128-138, 2006. [3] Adam C. Esser, MD, James G. Koshy, Ph.D, Henry W. Randle, MD, Ph.D. “Ergonomics in Office-Based Surgery: A Survey-Guided Observational Study”. American Society for Dermatologic Surgery, Inc. November 2007 [4] A. J van den Bogert, “Exotendons for assistance of human locomotion”, Biomed. Eng., Online, 2:17, 2003. [5] A. M. Dollar, H. Herr, “Lower Extremity Exoskeletons and Active Orthoses: Challenges and State-of-the-Art”, IEEE Trans. Rob., vol. 24, no. 1, 2008. [6] Axel Mulder. "Human movement tracking technology". Technical report, School of Kinesiology, Simon Fraser University, 2000 [7] Kenneth Meyer , Hugh L. Applewhite , Frank [8] Olivier Faugeras, Three-dimensional computer vision: a geometric viewpoint, MIT Press, Cambridge, MA, 2001 [9] R. T. Tsai "An Efficient and Accurate Camera Calibration Technique for 3-D Machine Vision", Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition, 2001.
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