Elevator system comprising a safety monitoring system with a master/slave hierarchy

Abstract

The invention relates to an elevator system (1) which has a drive (3), a car (5), multiple safety function components (9a-p) for providing safety functions at different positions within the elevator system (1), and a safety monitoring system (11) for controlling all of the safety function components (9a-p). The safety monitoring system (11) has multiple safety monitoring units (13a-e). The elevator system (1) is characterized in that the safety monitoring units (13a-e) have an input interface for reading data or signals, a data processing unit for processing the data or signals into control signals, and an output interface for outputting the control signals to an assigned safety function component of the safety function components (9a-p). At least some of the safety monitoring units (13) of the safety monitoring system (11) are connected together via data exchange channels (15). Furthermore, the safety monitoring units (13a-e) of the safety monitoring system (11) are organized in the form of a master / slave hierarchy, wherein one of the safety monitoring units (13e) is designed as a master unit and at least one of the safety monitoring units (13a-d) is designed as a slave unit. The elevator system allows a high degree of safety with as little cabling complexity as possible and thus as inexpensively as possible, in particular for high-rise elevators, by means of the decentralized safety monitoring units (13a-e), which are provided with their own data processing capability, and by means of the master / slave organization.

Description

technical field [0001] The invention relates to an elevator system, in particular to an elevator system with a safety monitoring system. Background technique [0002] In general, elevator systems are used to transport people or goods in a vertical direction. In order to avoid hazards to persons or objects, security monitoring systems are usually deployed. These systems monitor the current operating conditions of the elevator system, for example by means of detection of safety functions, ie for example by means of data or signals from sensors or from control devices. For example, monitoring the speed of an elevator car, or the closing status of the doors of an elevator system. In the event of a critical operating situation, the safety monitoring system activates suitable safety functions that can be activated, such as braking devices or fall arrest devices for braking, ie stopping the elevator car. The most stringent requirements are imposed on security monitoring systems ...

AI Technical Summary

Problems solved by technology

[0004] However, such central monitoring and control systems often require highly complex wiring

In addition, significant signal propagation times may occur between the locally provided detection and activatable safety function components and the centrally provided safety monitoring unit, whereby the reaction required by the safety monitoring system to react adequately to the critical situation that has occurred time can be extended considerably

In addition, the transmission of signals and data, for example from several distributed sensors to a single central safety monitoring unit and the central data processing there can result in considerable processing times, which can further extend reaction times

Images