| 摘要 |
FIELD: transport.SUBSTANCE: lifting system (20) comprises optical pickups (62) composed of LED or laser diode, processor (70) and floor gage (78). In control over lifting plant, elevator cabin (30) is displaced vertically in lifting compartment (22). Optical pickup (62) connected with cabin (30) emits signal (66) to each gage mark (74) said cabin passes by. Signals (68) reflected from attribute (74a) related to the surface (bar code, number, whatever optically recognisable lines) and from every gage mark (74) can be received by optical pickup (62) and saved by computer (70).EFFECT: cabin position and speed determination, elevator well door determination, lower costs.20 cl, 6 dwg |
