Elevator Car Assignment Confirmation Using Personal ID

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Solution Overview

Problem

Existing elevator systems fail to provide sufficient guidance on assigned elevator cars after destination calls are registered, leading to user confusion and potential misboarding, especially when personal information is used for special operations.

Innovation Solution

An elevator system that requires users to input personal information before boarding, using ID recognition and assigned car notification systems to ensure accurate and continuous car assignment information is provided through dedicated devices or a combined device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If an indication device shows the assigned elevator number only temporarily, then the system complexity is reduced, but the user cannot confirm the assigned elevator after leaving the registration area

Engineering Contradiction:
Improveindication device functionVSAvoidassigned elevator information
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

The patent introduces a portable terminal (smartphone, tablet, or wearable device) as an intermediary between the indication device and the user. The terminal receives the assigned elevator number from the indication device via short-range wireless communication and stores it locally, allowing the user to access the information at any time after leaving the registration area.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent transitions the information display from a fixed spatial dimension (indication device at registration location) to a portable temporal dimension (terminal device that moves with the user). This allows the user to carry the assigned elevator information anywhere in the building.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Device complexity

If only destination floor information is displayed on the indication device, then the device complexity is reduced, but users may board the wrong elevator especially when special operations are involved

Engineering Contradiction:
Improveindication device functionVSAvoidelevator boarding accuracy
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent segments the information display into two distinct parts: destination floor information and assigned elevator number. This segmentation allows users to clearly distinguish between the destination they requested and the specific elevator assigned to serve them, preventing confusion and ensuring accurate boarding.

Inventive Principle:
Principle #1Segmentation

3Reliability

If the registration device is installed away from the elevator hall for security reasons, then security is improved, but users may forget the assigned elevator number during movement to the hall

Engineering Contradiction:
ImprovesecurityVSAvoidassigned elevator number
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The portable terminal serves as a portable memory intermediary that travels with the user from the registration location to the elevator hall. This eliminates the problem of forgetting the assigned elevator number during movement, while the registration device can remain securely installed away from the elevator hall.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3241795B1Elevator system
Publication Date: 2026.05.20 MITSUBISHI ELECTRIC CORP
  • EP3241795B1 patent drawingFigure 1~2
  • EP3241795B1 patent drawingFigure 3~4
  • EP3241795B1 patent drawingFigure 5

AI summary

In an elevator system in which a user registers a destination call by inputting his or her personal information before boarding an elevator car, it is ensured that information on an assigned car can be appropriately provided, and that the user is able to easily make sure of the elevator car to board even after the registration of a destination call. For this purpose, there is installed in an elevator hall or the like a destination call registration device with which a user registers a destination call before boarding the elevator car and which has an assigned car confirmation means with which a user makes sure of an assigned car by inputting his or her personal information. When an elevator has been assigned to a destination call registered from the destination call registration device, regarding the destination call for which the assignment has been performed, information on an assigned car and personal information of a user are stored in storage means by associating these pieces of information with each other. When personal information of a user has been inputted, the assigned car confirmation means provides information on the assigned car of the user on the basis of the personal information and the memory content in the storage means.