Elevator Destination Call Control via Story Terminal Extraction
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Solution Overview
Problem
Elevator installations often require modernization to adapt to changing demands, such as improved safety, efficiency, and user comfort, as older systems may no longer meet evolving needs, and existing solutions do not effectively integrate destination call control systems to prevent unplanned stops.
Innovation Solution
The integration of a story terminal on each building story, electronically coupled with the control device, allows for destination call control, deactivating story selection on the input device after a destination is chosen, preventing unplanned stops and enhancing operational efficiency, while allowing special buttons for emergencies and handicapped access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If story selection is enabled in the cage input device, then users can freely select destinations, but unplanned stops occur reducing efficiency
Solution Approach 1:
The story selection function is extracted from the cage input device and relocated to the story terminal outside the cage. The cage input device retains only the call button function, while destination selection is performed externally at the story terminal before the elevator arrives.
Solution Approach 2:
The story terminal acts as an intermediary between the user and the elevator system. Users input their desired story at the story terminal, which then communicates the destination call to the control device, which in turn activates the display in the cage to inform the user of their selected destination.
2Productivity
If story terminal is integrated with control device, then destination call control prevents unplanned stops, but system complexity increases
Solution Approach 1:
The control device is designed with multi-functionality to handle both traditional cage input signals and new story terminal destination call signals. The same control device manages elevator operation, processes calls from multiple sources, controls the display, and manages the interlocking logic, thereby avoiding the need for separate dedicated control units.
3Productivity
If cage input device is deactivated for story selection, then unplanned stops are prevented, but user feedback on selected story is lost
Solution Approach 1:
The story selection information is copied from the story terminal input to a display device inside the cage. The display shows the selected destination story, providing visual confirmation to the user without requiring the cage input device to remain active for story selection.
Data Source
AI summary
A method for modernizing an elevator installation includes installing story terminals for input of a destination story on the stories of the building, which terminals are so coupled with an elevator control device connected with an input device in the elevator cage that, at least in a standard mode, after input of the destination story call detected by means of the story terminal, the cage automatically travels to the selected destination story, and in that case a story selection in the cage by use of the input device is no longer possible. The indicating means for representing selected stories of the input device are so incorporated in the control system that the indicating means, after input of a story call by way of the story terminal, are activated.