B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
364/17
B66B 3/02 (2006.01)
Patent
CA 1247763
Abstract A position indicating system for an elevator system includes a position indicator which operates in conjunction with an elevator control to provide an indi- cation of elevator position and direction of travel by means of a display disposed within the elevator or at any position in the building. The position of the elevator is sensed by the elevator control and is converted into a multi-bit digital word which is transmitted serially over hoistway wires to the position indicator. The position indicator utilizes the multi-bit word to access a memory in which is stored a library of codes for character sets which may be indicated by the display. The proper codes are obtained from the memory and used to energize the display elements to illuminate the desired characters. By transmitting the position word in serial fashion to the position indicator, only six hoistway wires are required regardless of the number of position indicators utilized in the building. Further, a standardized library may be stored in the memory element, in turn permitting the position indicator to be mass produced.
444938
Meredith & Finlayson
Montgomery Elevator Company
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