| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening/closing control method for an automatic door of good sensitivity which detects the state of being caught in the door and immediately performs safety return even when the door rebounds or does not stop. SOLUTION: When a door position is in a section A or B by judgement of a step S18, detection the state of being caught in of an obstacle is detected by rebound or stop of the door to perform a reversely opening operation. When the door is in a territory except the sections A, B by judgement of the step S18, a method of detecting the state of being caught in of an obstacle by rebound or stop of the door, and a method of detecting a speed V of the door becoming under the detected speed Vs of being caught in, are jointly used, and even when the door strikes against an obstacle or the like to rebound or to stop, the door immediately performs safety return when the door speed V becomes under the detected speed Vs of being caught in. Further after changeover of a magnetic sensor, the door speed up to changeover to a next signal is estimated, and when the estimated door speed is under Vs, safety return is performed. |
