Elevator Access Control via Floor Detection Mismatch
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Solution Overview
Problem
Existing methods for managing elevator usage and emergency evacuation in buildings do not effectively determine the location of persons within the building without their active input, leading to inefficiencies and safety concerns.
Innovation Solution
A method utilizing detection devices on each floor to track individuals entering and exiting elevators, comparing destination floors, and triggering actions such as authorization changes or alerts if there is a mismatch, with actions dependent on status, time, and location, while integrating location information into emergency plans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detection devices are installed on each floor to automatically detect person location, then safety and location tracking are improved, but device complexity and cost increase
Solution Approach 1:
The detection devices serve multiple functions: they detect person presence, determine location, and provide data for both safety monitoring and elevator access control. This multi-functionality reduces the need for separate systems, thereby limiting the increase in device complexity while maintaining improved safety.
Solution Approach 2:
The system automatically detects and tracks person locations without requiring active participation from the persons themselves. The detection devices autonomously monitor and report locations, eliminating the need for manual location input and reducing the operational burden on users.
2Measurement precision
If detection devices are installed on each floor to automatically detect person location, then location tracking accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The detection devices are designed to perform multiple functions including presence detection, location determination, and integration with elevator control systems. By consolidating these functions into a single system, the patent reduces the need for multiple separate devices, thereby limiting manufacturing cost increases while achieving accurate location tracking.
3Reliability
If the system monitors and controls elevator access based on destination floor matching, then unauthorized usage is reduced, but ease of operation decreases
Solution Approach 1:
The system continuously monitors elevator usage and compares actual destination floors with authorized destinations. When a mismatch is detected, the system provides feedback by triggering alerts or denying access. This automated feedback mechanism strengthens access control while minimizing the need for manual intervention, thereby limiting the impact on ease of operation.
4Reliability
If the system triggers actions such as authorization changes or alerts for destination mismatches, then safety is improved, but device complexity increases
Solution Approach 1:
The system pre-establishes rules and criteria for what constitutes a destination mismatch and what actions should be taken (alerts, authorization changes, etc.). By defining these actions in advance, the control logic becomes more structured and manageable, limiting the increase in device complexity while maintaining improved safety through consistent enforcement of security protocols.
Data Source
AI summary
A person is detected before entering an elevator in a building, and a destination floor desired by the person is detected. When the person leaves the elevator, the floor on which the person leaves the elevator is detected using a further detecting device. An action is triggered if the floor on which the person leaves the elevator and the destination floor do not match.