| 摘要 |
Summary: In the case of this lift shaft (1), a reflector (2) with a code (3) is arranged in the region of a stopping place. The code (3) displays two identical tracks (4, 5). The level of the stopping place is illustrated by the broken line (HO), to which the code (3) is symmetrical. A moving-in region (BE), in which the bridging-over of door contacts is permitted, lies half above and half below the level line (HO). A resetting region (BN), in which a resetting of a lift cage (6) lowering due to cable expansion is permitted with bridged-over door contacts when the doors are open, lies half above and half below the level line (HO). The code (3) of the tracks (4, 5) is detected and evaluated by a 2-channel evaluating equipment (7) arranged at the lift cage (6). Transmitters (8, 9) of the evaluating equipment (7) illuminate the tracks (4, 5) of the reflector (2). The illuminated surfaces of the tracks (4, 5) are imaged onto chargecoupled device sensors (10, 11) of the evaluating unit (7) and detected by means of a pattern recognition logic system. The preparation of the images into the information, which serves for the lift control, takes place by means of a computing equipment.
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