Patent · US Active

Method and device for operating a passenger transport installation

US8469175B2 · kind B2 · utility

3Cited by
17References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 23, 2012
Grant dateJun 25, 2013
Priority date
Expiry dateJan 23, 2032

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66B25/00
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A method for controlling an installation for a revolving passenger transport comprised of steps or pallets moving along a transport path that includes a plurality of drives. At least one drive is arranged in a reversing area and at least one further drive is arranged in an area of the transport path. Each drive is actively connected to a frequency converter. All of the frequency converters are monitored by a higher-order control. A defined drive pattern is memorized in the higher-order control. Measured values of the drives are transmitted to the higher-order control by individual frequency converters. The measured values are compared in the higher-order control with respect to each other. In case of divergences from the memorized drive pattern of the respective frequency converter, the respective frequency converter which diverges from a comparative value is corrected with aid of the higher-order control.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.