Otis Elevator Company

Arthur T Grondine

Daryl J Marvin

Craig Drew Bogli

Sandeep Sudi

Randall S Dube

Devu Manikantan Shila

Michael Garfinkel

Teems E Lovett

Benjamin J Watson

Marcin Wroblewski

Joseph Crute

A method of avoiding unnecessary safety brake actuation in an elevator system. The method includes determining whether a true overspeed or overacceleration condition of an elevator car is present. The method also includes activating the electronic safety actuator if a true overspeed or overacceleration condition of the elevator car.

Method and system of reducing false actuation of safety brakes in elevator system

An electronic speed detection system is provided. The electronic speed detection system includes an accelerometer coupled to a moving object and a hybrid altimeter, which includes a first pressure sensor coupled to the moving object and a second pressure sensor. The electronic speed detection system also includes a controller comprising a memory and a processor. The memory storing computer program instructions executable by the processor to cause the electronic speed detection system to determine a normalized position based on first inputs received from the hybrid altimeter, or determine a corrected velocity position based on a second input received from the accelerometer and the normalized position.

Hybrid altimeter for measuring vertical velocity

A mobile-based equipment service system includes a remote server, a mobile device, and at least one equipment controller. The mobile device includes a user interface, and is configured to send a user authentication message, initiated by a user via the user interface, to the remote server. The remote server is configured to verify the user via the user authentication message and once verified, send an encrypted blob to the mobile device in response to the user authentication message. At least one equipment controller is configured to receive and decrypt the encrypted blob from the mobile device.

Mobile-based equipment service system using encrypted code offloading

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Deep River, CT, United States of America

Arthur T Grondine