A Dynamic Measurement System Developed For Human Bodys' Balance Control Ability Based On Virtual Instrument

China has steped into aging society.The cost in older populations' medical treatment or nursing has raised more higher.Both society or families are faced new strains.The most of these caused by falling and fractures or other injuries as results.This research design body balance dynamic measurement system mainly by measuring the control reactionof foot motherboard,To detect human upright equilibrium and the body shaking generated unbalanced inertial force.Measuring equipment includes two-dimensional degrees of freedom at forward,backward, left, right.Two stress test board about has three pressure sensor.When we are stepping in about two stress test plate vector-valued force can be measured.Measurement includes those tested still stand, without outside interference and stimulate the static balance when detection and when those tested under the influence of external factors. Such as external interference and provide stimulation, or require those tested accept open and close my eyes or standing on one foot when such instructions the dynamic test.The force of these cases the data are collected,Through the design good matching LabVIEW program extremely data acquisition card.Data analysis and equilibrium calculation block diagram,obtain concrete human static balance and dynamic balance data as "Stable balance time ","Gravity sloshing range", "Maximum control","Control action frequency","Control center of gravity","Left and right foot control ability","The body changes occurred","Visual disturbance control reaction time",etc.These can be used as a judge balance ability or health of the basis or can remind those tested timely correcting or do targeted therapy.