Elevator Control Fixed Destination Allocation
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Solution Overview
Problem
Elevator systems in public buildings face inefficiencies and increased intermediate stops due to passengers' varied destination calls, particularly during peak times, leading to prolonged travel times and complex control requirements.
Innovation Solution
Implementing a method where at least one destination story is fixedly allocated to an access story, with the elevator control automatically determining and maintaining this allocation based on building structure and occupancy patterns, allowing passengers to be directed directly to their destination without intermediate stops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If destination call control is used to allocate elevator cages based on desired destination, then persons with common destination stories are concentrated in the same elevator cage reducing intermediate stops, but the control system becomes complex and delays occur at peak times since persons who have not made a destination call still board elevators
Solution Approach 1:
The building is divided into multiple zones with access stories and destination stories, and the elevator installation is segmented into multiple independent elevator cages. Each elevator cage is allocated to serve specific destination stories from specific access stories, creating a segmented control structure that reduces complexity while maintaining efficiency
Solution Approach 2:
The elevator control pre-establishes fixed allocations of destination stories to access stories for each elevator cage before peak times occur. This preliminary configuration allows the system to handle peak traffic efficiently without requiring complex real-time decision-making, reducing both control complexity and travel time
2Productivity
If multiple elevator cages are used to serve different destination stories simultaneously, then the transportation effectiveness is improved, but the number of intermediate stops increases when passengers need to switch between cages
Solution Approach 1:
Each elevator cage is designed with multi-functionality to serve multiple destination stories from a single access story. The fixed allocation system allows each cage to perform various functions (serving different destination stories) while maintaining a simplified operational pattern that avoids intermediate stops and passenger transfers
3Loss of time
If fixed allocation of destination stories to access stories is implemented for each elevator cage, then intermediate stops are minimized and travel times are reduced, but the system becomes less flexible in responding to varying passenger demands
Solution Approach 1:
The fixed allocation of destination stories to access stories for each elevator cage provides a stable operational framework that minimizes intermediate stops. The system maintains this fixed structure while adapting to varying passenger demands through the coordinated operation of multiple elevator cages, each following its predetermined allocation pattern
Data Source
AI summary
A method and system for transporting people in a building using an elevator installation having at least one elevator cage determines a destination story based on the movement direction of people on an access story. The movement direction of one or more persons on an access story is detected using a movement direction sensor. The destination story may be based on detected movement and the access story on which the movement is detected. The elevator cage is entered by people on at least one first access floor (S1, S2). In order to increase the transport efficiency at least one target floor (S3, S4, S5, S6, S7) is associated with the access floor (S1, S2) in a fixed manner, in such a way that the elevator cage (11) travels from the first access floor (S1, S2) to the target floor (S3, S4, S5, S6, S7) associated therewith.