| 摘要 |
<p>The procedure comprises the stages of feeding the motor of the door (5) with a determinated frequency and a voltage; sensing the door position (x); provide the voltage and frequency values relative to the door position (x) ; and in the case of an obstacle being placed in the door closing movement trajectory, the stages of detecting the obstacle, activating the reopening of the door, slowing the door speed when the door aproaches the obstacle, reactivate the reopening of the door in the case of the said obstacle still being present; and increasing the speed of the door in the opposite situation. The device comprises a variator of feed voltage and frequency of the motor(5) and a door position encoder which comprises two independent sensors (8, 9) which each provide impulses (23, 25). The steps of detecting and activating are performed when the time passed between these impulses exceeds a predeterminated time value, caused by the absence of a new impulse detected and/or the presence of an inverse impulse to that desired. <IMAGE></p> |
