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http://dx.doi.org/10.5302/J.ICROS.2010.16.9.827

Improvement of the Detection of LOB through Reconstruction of an Internal Model  

Kim, Kwang-Hoon (Pusan National University)
Park, Jung-Hong (Pusan National University)
Son, Kwon (Pusan National University)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.16, no.9, 2010 , pp. 827-832 More about this Journal
Abstract
Many researchers have tried to detect the falling and to reduce the injury associated with falling. Normally the method of detection of a loss of balance is more efficient than that of a compensatory motion in order to predict the falling. The detection algorithm of the loss of balance was composed of three main parts: parts of processing of measured data, construction of an internal model and detection of the loss of balance. The internal model represented a simple dynamic motion balancing with two rear legs of a four-legged chair and was a simplified model of a central nervous system of a person. The internal model was defined by the experimental data obtained within a fixed time interval, and was applied to the detecting algorithm to the end of the experiment without being changed. The balancing motion controlled by the human brain was improved in process of time because of the experience accruing to the brain from controlling sensory organs. In this study a reconstruction method of the internal model was used in order to improve the success rate and the detecting time of the algorithm and was changed with time the same as the brain did. When using the reconstruction method, the success rate and the detecting time were 95 % and 0.729 sec, respectively and those results were improved by about 7.6 % and 0.25 sec in comparison to the results of the paper of Ahmed and Ashton-Miller. The results showed that the proposed reconstruction method of the internal model was efficient to improve the detecting performance of the algorithm.
Keywords
reconstruction method; loss of balance; detection; internal model;
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1 S. Sadigh, A. Reimers, R. Andersson, and L. Laflamme, “Falls and fall-related injuries among the elderly: a survey of residential-care facilities in a swedish municipality,” J Community Health, vol. 29, no. 2, pp. 129-140, Apr. 2004.   DOI
2 N. Noury, P. Rumeau, A. K. Bourke, G. OLaighin, and J. E. Lundy, “A proposal for the classification and evaluation of fall detectors,” Elsevier Masson France IRBM, vol. 29, pp. 340-349, Dec. 2008.
3 M. J. Gibson, R. O. Andres, B. Isaacs, T. Radebaugh, and J. Worm-Petersen, “The prevention of falls in later life,” Dan Med Bull, vol. 34 (Suppl 4), pp. 1-24, Apr. 1987.
4 G. Wu, “Distinguishing fall activities from normal activities by velocity characteristics,” J Biomechanics, vol. 33, pp. 1497-1500, Nov. 2000.   DOI
5 A. A. Ahmed and J. A. Ashton-Miller, “Is a loss of balance a control error signal anomaly? Evidence for three-sigma failure detection in young adults,” Gait and Posture, vol. 19, pp. 252-262, Jun. 2004.   DOI
6 G. J. Wijlhuizen, A. M. J. Chorus, and M. Hopman-Rock, “The 24-h distribution of falls and person-hours of physical activity in the home and strongly associated among community-dwelling older persons,” Preventive medicine, vol. 46, pp. 605-608, Jun. 2008.   DOI
7 Y. S. Oh, W. Y. Park, K. H. Kim, K. O. An, and S. H. Song, “The research of balance strategy and latency between old and adolescent by dynamic posturography,” Korea J of Sports Science, vol. 17, no. 2, pp. 959-968, May 2008.
8 J. H. J. Allum and F. Honegger, “Informations between vestibular and proprioceptive inputs triggering and modulating human balance-correcting response differ across muscles,” Exp Brain Res, vol. 121, pp. 478-494, May 1998.   DOI