| 摘要 |
<p>The manual control comprises a matrix sensor (2) with a sensitive surface (6) and pushbuttons (8,10,12,14) defining points of support and adapted to touch the sensitive surface under the action of manual support. The pushbuttons are fixed on the sensor, or linked to a support against which the sensor is fixed. The sensor is adapted to deliver a signal which is a function of the point of touching the sensitive surface. The matrix sensor (2) has typically four connection wires (4); two for electric supply and two for delivering the signals. The pushbuttons are compressible. The sensor functions by pressure or contact at touching points. The positions of the points of touching according to the directions of x and y are indicated by signals transmitted in two wires, one corresponding to the positions in x and the other corresponding to the positions in y, or by coded signal for two positions transmitted in one wire. The four pushbuttons allow the manual control comprising the four functions: automatic lifting to close position, automatic lowering to open position, manual lifting until the pressure is maintained, and manual lowering until the pressure is maintained. The manual control or a window lifting requires a motor-reducing controlled by signals from the matrix sensor with pushbuttons.</p> |
