POSITION RECOVERY VIA DUMMY LANDING PATTERNS

摘要

An elevator system (10) includes an elevator hoistway (12) having a plurality of landings (14), an elevator car (16) configured to move within the elevator hoistway (12), and a position determining system (40) having a plurality of landing position indicators (48) and a plurality of dummy position indicators (50). At least one of the landing position indicators (48) is mounted proximate to each of the plurality of landings (14). Each dummy position indicator (50) is mounted within the elevator hoistway (12) at a predetermined vertical position between various of the plurality of landing position indicators (48). The position determining system (40) additionally includes a sensor (42) configured to determine when the elevator car is adjacent one of the plurality of landing position indicators (48) or one of the plurality of dummy position indicators (50). The plurality of landing position indicators (48) and the plurality of dummy position indicators (50) are positioned to form a sequence of unique patterns. The position determining system is more cost effective and timesaving than the absolute position reference systems.

主权项

1. An elevator system comprising:
an elevator hoistway comprising a plurality of landings; an elevator car configured to move within the elevator hoistway; and a position determining system including:
a plurality of landing position indicators, at least one of the plurality of landing position indicators being mounted proximate to each of the plurality of landings;a plurality of dummy position indicators, each of the plurality of dummy position indicators being mounted within the elevator hoistway at a predetermined vertical position between various of the plurality of landing position indicators; anda sensor, mounted to the elevator car, and configured to determine when the elevator car is adjacent one of the plurality of landing position indicators or one of the plurality of dummy position indicators,wherein the plurality of landing position indicators and the plurality of dummy position indicators are positioned to form a sequence of unique patterns.