Elevator Destination Call Control for Traffic Adaptation
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Solution Overview
Problem
Existing destination call control methods for elevator allocation struggle to effectively manage varying traffic conditions, leading to inefficiencies in high-traffic situations.
Innovation Solution
An elevator control system with multiple operating modes that adjusts based on traffic conditions, using immediate call allocation in low traffic and a delayed allocation mode in high traffic, along with a third mode for immediate allocation for handicapped or VIP individuals, utilizing data from load sensors, traffic forecasts, and common information panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If immediate call allocation is used in destination call control, then the passenger receives quick information about the allocated elevator, but the system becomes less effective in high-traffic situations
Solution Approach 1:
The system dynamically switches between immediate call allocation mode and delayed call allocation mode based on real-time traffic conditions. When traffic is light, immediate allocation provides quick service. When traffic is heavy, the system transitions to delayed allocation to optimize overall system performance, thus adapting the allocation strategy to current operational conditions rather than using a fixed approach
Solution Approach 2:
The system changes the allocation time parameter based on traffic conditions. In immediate allocation mode, the allocation occurs right when the call is registered. In delayed allocation mode, the system waits for an optimized time point before allocating, effectively changing the timing parameter to suit different traffic scenarios and improve overall system efficiency
2Productivity
If delayed call allocation is used to optimize elevator selection, then more time is available to select the optimal elevator, but the passenger experience is degraded by not receiving immediate information
Solution Approach 1:
The system introduces a common information panel as an intermediary between the delayed allocation process and the passenger. While the allocation is delayed to optimize selection, the panel keeps passengers informed about the process status and eventually displays the allocated elevator information, thus maintaining passenger engagement and information flow without compromising the optimization benefits of delayed allocation
Solution Approach 2:
The information feedback mechanism dynamically adapts to the allocation mode. In immediate allocation mode, information is provided right away. In delayed allocation mode, the system uses the common information panel to provide updates during the waiting period and final allocation information, thus dynamically adjusting the feedback timing and method to match the operational mode and maintain passenger satisfaction
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the ability to optimize elevator allocation across different traffic conditions, improving overall system performance and passenger experience by allowing for more time to select optimal elevators in heavy traffic scenarios while ensuring immediate service for priority groups.
Implementation Method 1
The determining means may for example receive signals from a load weighing device of at least one, possibly all elevators of the elevator group
Implementation Method 2
Also person sensors, e.g. IR sensors in the elevator lobby and/or elevators may be used to gather information about the current traffic situation
Data Source
AI summary
The invention relates to a method for allocating elevators of an elevator group to landing calls given in the elevator group, the elevator group having a control unit having a destination call control, which elevator control unit is connected to determining means for the prevailing traffic condition in the elevator group. Further the control unit comprises at least a first and second operating mode which are selected according to the prevailing traffic condition, wherein the first operating mode uses immediate call allocation of the elevators which includes the display of the allocated elevator on a destination operating panel immediately after having issued a landing call and wherein the second mode comprises the allocation of an elevator to a landing call before the arrival of the allocated elevator call to the landing where the landing call has been issued. The invention allows an adaption of destination control to different traffic situations.