Otis Elevator Company

Bruce P Lerner

Daryl J Marvin

Arthur Hsu

Hansoo Shim

Vijay Jayachandran

Seongrak Jeong

Cheng-Shuo Wang

Cheong Sik Shin

Cheongsik Shin

Arthur C Hsu

An elevator control system includes at least one destination entry fixture coupled to a controller area network (CAN) bus that provides a first communication channel, the at least one destination entry fixture operable to transmit destination information over the CAN bus; a plurality of elevator car controllers each associated with a respective elevator car, the plurality of elevator car controllers coupled to the CAN bus to receive the destination information; the plurality of elevator car controllers coupled to a ring network that provides a second communication channel; and a group controller operable to determine an elevator car to be dispatched in response to receiving the destination information.

Elevator system using dual communication channels

The movement of a plurality of elevator cars () in an elevator hoistway () is coordinated for situations in which the regions of the hoistway that are serviceable by the cars () at any given time are configured to overlap. A car stop plan for each elevator car () is generated that includes a sequence of stops for servicing demand assigned to the elevator car (). Operation of the elevator cars () is then coordinated based on the car stop plans such that each elevator car () services its assigned demand without interfering with the car stop plans of any other of the plurality of elevator cars ().

Coordination of multiple elevator cars in a hoistway

Growing community of inventors

Cheshire, CT, United States of America

Bruce P Lerner