Elevator Call Registration Device Using 2D Barcode Floor Selection

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Solution Overview

Problem

Existing elevator systems require users to manually input their destination floor, which is inconvenient, especially when users need to travel between multiple floors.

Innovation Solution

A call registration device that uses a two-dimensional barcode to automatically specify candidate floors, determines the departure and destination floors based on the barcode information, and registers a call for the elevator accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a two-dimensional barcode including information on a plurality of candidate floors is read by the reader, then the user can specify multiple possible destinations, but the system cannot automatically determine which floor is the actual destination without additional user input

Engineering Contradiction:

Improveability to handle multiple candidate floorsVSAvoidconvenience of elevator call registration

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system performs preliminary determination of the departure floor by comparing candidate floors with the installation floor before final destination selection. This preliminary action reduces the decision space and enables automatic destination determination in many cases, eliminating the need for additional user input while maintaining the ability to handle multiple candidate floors

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses the reader's installation floor information to automatically determine the departure floor and subsequently the destination floor without requiring user input. The system serves itself by utilizing its own operational context (installation location) to complete the call registration process automatically

Inventive Principle:

Principle #25Self-service

2Ease of operation

If the system automatically determines departure and destination floors from the two-dimensional barcode, then user input operation is reduced, but the system complexity increases due to additional determination and setting means

Engineering Contradiction:

Improveconvenience of elevator call registrationVSAvoidcomplexity of floor determination system

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The system merges the determination of departure floor and destination floor into a single integrated process. The specification means identifies candidate floors, the first determination means checks against installation floor, and the setting means simultaneously determines both departure and destination floors based on this information, reducing overall system complexity through functional integration

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12282826B2Call registration device

Publication Date: 2025.04.22 MITSUBISHI ELECTRIC CORP

AI summary

A registration device includes a reader, a specification unit, a determination unit, a setting unit and a call registration unit. The specification unit specifies a plurality of candidate floors on the basis of a two-dimensional barcode. In a case where it is determined by the determination unit that a candidate floor that matches an installation floor is included, the setting unit sets the candidate floor as a departure floor and sets another candidate floor included in the plurality of candidate floors as a destination floor. The call registration unit registers a call for a car on the basis of the departure floor and the destination floor set by the setting unit.