Elevator Group Controller Dynamic Zone Allocation
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Solution Overview
Problem
Multicar elevator systems with circular paths in connected shafts face delays due to inability to bypass each other, limiting efficient allocation of elevator cars in response to passenger calls, leading to increased service time.
Innovation Solution
An elevator system with a group controller that determines efficiency by calculating waiting times in zones and adjusts the operation of elevator sub-systems to serve different zones dynamically, allowing one sub-system to serve specific zones from another, optimizing service allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If elevator cars travel along a circular path in connected shafts, then the system can provide continuous service, but the elevator cars cannot bypass each other causing delays
Solution Approach 1:
The system divides the building into multiple zones and assigns different elevator sub-systems to serve different zones dynamically. This segmentation allows the controller to optimize car allocation by directing cars to specific zones based on real-time demand, preventing circulation delays while maintaining continuous service capability.
Solution Approach 2:
The patent implements dynamic zone assignment where elevator sub-systems can be reassigned to different zones based on real-time efficiency calculations. The controller continuously monitors waiting times and reallocates cars dynamically, transforming the static circular path limitation into a flexible system that adapts to changing traffic patterns.
2Ease of operation
If elevator cars travel independently in the shafts, then each car can move autonomously, but the allocation of elevator cars in response to calls is limited
Solution Approach 1:
The controller receives feedback from call buttons and efficiency calculations, then dynamically adjusts car allocation decisions. The system monitors waiting times and call patterns, using this feedback to optimize which cars serve which zones, enhancing adaptability while preserving independent car motion capability.
Solution Approach 2:
The system changes operational parameters by dynamically adjusting zone assignments and car allocations based on real-time conditions. The controller modifies service patterns, waiting time thresholds, and car routing parameters to optimize response to passenger calls while maintaining independent car operation.
Data Source
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AI summary
The invention relates to an elevator system comprising: a plurality of elevator sub-systems (110; 150) and a group controller (170) configured to control the plurality of the elevator sub-systems (110; 150), wherein the group controller (170) is configured to: determine an efficiency of the elevator system; and control, in accordance with the efficiency of the elevator system, at least one elevator sub-system (110; 150) to serve elevator calls at different zones from at least one other elevator sub-system (110; 150). The invention also relates to a method, a group controller and a computer program product.