Matrix Pad Transducer

摘要

Human trait detection could be a useful job for an automat system. Animal abilities of space detection are strictly oriented to help them to survive. Dog use, first, the smell receptivity, but snake uses the infrared sensors. The matrix pressure sensor for human gait detection needs such a structure in order to be able to acquire a set of data to describe the human footprint as a spatial-temporal function p(x,y,t). Any element of the transducer takes a position that is defined by the matrix coordinate. All the elements are pressure sensors. A difficulty of this transducer design is the achievement of the signal. A simple grid connection is not adequate to obtain p(x,y,t) versus s(t) signal. The analogical signal has to be converted to digital one. Finally the matrix must be analyzed with an image strategy: segmentation, ROI establishing, Fast Fourier Analyze etc.