Elevator Evacuation Mode Auto-Release Control

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Solution Overview

Problem

In existing elevator systems, after evacuating individuals from a designated rescue floor, the evacuation operation mode is not properly released, preventing other rescue floors from utilizing the elevator for evacuation, thus hindering continuous evacuation of individuals from the building.

Innovation Solution

An elevator device with an evacuation operation mode requesting device and a car operation instructing device on each rescue floor, where the control device sets and maintains an evacuation operation mode until a predetermined time passes without operation, allowing automatic release and reassignment to other rescue floors for continuous evacuation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the evacuation operation mode requesting device is maintained in an operated state, then the car maintains traveling between the rescue floor concerned and the evacuation floor, but this prevents any evacuee left on a rescue floor other than the rescue floor concerned from evacuating on the elevator

Engineering Contradiction:
Improveevacuation operation reliabilityVSAvoidrescue floor adaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The evacuation operation mode is changed from a static maintained state to a dynamic state with automatic release after a predetermined time. The control device automatically releases the evacuation operation mode corresponding to the rescue floor concerned when the car operation instructing device is not operated before the predetermined time passes, allowing the system to adapt to different rescue floors sequentially

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control device monitors the operation state of the car operation instructing device and the passage of predetermined time, and automatically releases the evacuation operation mode based on this feedback. This feedback mechanism ensures that the elevator can transition from serving one rescue floor to another, improving overall system adaptability

Inventive Principle:
Principle #23Feedback

2Ease of operation

If the evacuation operation mode is maintained continuously, then the evacuation guide can evacuate through emergency stairs without releasing the operation, but this causes loss of time for evacuating other floors

Engineering Contradiction:
Improveevacuation guide operation easeVSAvoidevacuation time loss
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The control device automatically releases the evacuation operation mode without requiring the evacuation guide to manually release it. The system serves itself by monitoring the time passage and automatically transitioning to the next rescue floor, eliminating the need for manual intervention and reducing evacuation time loss

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The evacuation operation mode is designed with a predetermined time period during which it will be automatically released if not manually extended. This periodic action ensures that the elevator systematically moves from one rescue floor to the next, optimizing the overall evacuation timeline across multiple floors

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS10407276B2Elevator device
Publication Date: 2019.09.10 MITSUBISHI ELECTRIC CORP
  • US10407276B2 patent drawing
  • US10407276B2 patent drawing
  • US10407276B2 patent drawing

AI summary

An elevator device that can continuously evacuate any evacuee left in a building by using an elevator. The elevator device includes a control device configured to maintain an evacuation operation mode corresponding to a rescue floor concerned when a car operation instructing device is operated on the rescue floor concerned before a predetermined time passes from when the car stops at the rescue floor concerned during the evacuation operation mode corresponding to the rescue floor concerned, and release the evacuation operation mode corresponding to the rescue floor concerned when the car operation instructing device is not operated on the rescue floor concerned before the predetermined time passes from when the car stops at the rescue floor concerned during the evacuation operation mode corresponding to the rescue floor concerned.