Otis Elevator Company

Staubli International Ag.

Kim Ngoc Trinh

Steven D Coste

Jason S Stone

Carl Heldwein

William G Edgar

Richard J Casler, Jr

Kenneth E Daggett

Eimei M Onaga

Julian H Shull, Jr

D Richard Schafer

Richard Schafer

Julian H Shull Jr

James A Hart

A system of sensing elevator car position is presented that dynamically compensates for problems due to frictional slippage of its mechanical connection and/or building settlement. The system comprises an elevator car within an elevator hoistway. An encoder is mounted within the elevator hoistway and mechanically connected to the elevator car. The mechanical connection drives the encoder which generates data indicative of the position of the elevator car. Either one of a position sensor and a position sensor actuator is mounted to a landing of the hoistway. The other one of the position sensor and position sensor actuator is mounted to the elevator car. The position sensor generates data indicative of the elevator car floor reaching a predetermined distance from the elevator landing when actuated by the position sensor actuator. An elevator position controller receives the data generated by both the position sensor and the encoder. The mechanical connection may include an elevator rope frictionally driving a governor sheave of an elevator speed governor system upon which the encoder is mounted.

Elevator car position sensing system

A control system is provided for a workcell having a plurality of electric robots and a plurality of workcell equipment items in turn having a plurality of control and sensor devices associated therewith. Respective electronic robot controllers are disposed at respective workcell locations to operate robots as a part of the workcell process. Each robot controller has a floppy disk or other means for loading program data for one of the robot controllers. A first input/output control module is disposed at another workcell location and it has connected thereto as inputs a first group of the sensor devices and as outputs a first group of the control devices. Second and third input/output control modules are disposed at additional workcell locations and have connected thereto as inputs second and third groups of the sensor devices and as outputs second and third groups of the control devices. Additional input/output control modules are associated with the other robot controllers, and are similarly connected and placed in spaced workcell locations.

Robotic workcell control system having improved input/output interfacing

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Danbury, CT, United States of America

Kim Ngoc Trinh