Elevator safety system having multiple buses

US9371210B2 · kind B2 · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Shari R. Parillo · Berlin, US
• Paul C. Hoppie · Bloomington, US
• Steven D. Coste · Berlin, US
• Robert Mazzamauro · Waterbury, US
• Ronnie E. Thebeau · Haddam, US
• Leslie C. Watterson · Unionville, US
• Peter Herkel · Berlin, DE

Key dates

• Filing date: Sep 13, 2010
• Grant date: Jun 21, 2016
• Expiry date: Jun 16, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66B5/0018
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

An elevator safety system including a controller, and a hoistway safety node arranged at a pit portion of an elevator hoistway. The hoistway node is operatively connected to one of a pit safety device and a lower hoistway device arranged at the elevator pit. A first bus links the hoistway node and the controller. The first bus passes communication signals directly from the hoistway node to the controller. A car node is arranged in an elevator car. The car node is operatively connected to a car safety device arranged at the elevator car. A second bus links the car node and the controller. The second bus passes communication signals directly from the car node to the controller.