抄録
A new bed monitoring system of the poses of a patient by using an electrostatic method has been developed. A two-dimensional array (8×8) of condensers is composed of electrodes attached to both sides of a mat, and the capacity of each condenser varies depending on the local sinking of the mat with the weight of a patient. The capacity of each point is transformed at first to an electric signal through the circuit using FET, and then to a time serial signal with X, Y scanning. The signal is processed by spline supplementing program to make the contour map displayed on CRT. The displayed map could show the various lying poses or any movement of a patient on the bed.
