| 摘要 |
<p>The door has a safety device detecting a foreign object (46), which is provided in a free part (40) of a movement region (34) below a door edge (32) and prevents collision. The safety device comprises a light grid with light emitters. The door edge exhibits height within the movement region, where the height is larger than distance of three adjacent monitoring channels. The channels comprise a value of zero or one, and are monitored in a common manner, where two of the channels are provided at a region of the door edge and below the door edge.</p> |
