Elevator Control via Mobile Terminal Acceleration Sensor

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Solution Overview

Problem

Existing elevator control systems require users to perform complex operations on their mobile terminals to indicate the use of a wheelchair, which is inconvenient and burdensome.

Innovation Solution

A control apparatus for elevators that uses a call registration unit and an operation control unit, where the operation control unit adjusts elevator operations based on user type determined by an acceleration sensor in the mobile terminal, without requiring the user to perform complex operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If information transmission settings are made on a mobile terminal to indicate wheelchair use, then the elevator can be controlled appropriately for non-pedestrian users, but the user is required to perform complicated operations

Engineering Contradiction:
Improveelevator control adaptabilityVSAvoidmobile terminal operation complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The mobile terminal automatically detects user movement state through its acceleration sensor and transmits the detected information to the elevator control apparatus without requiring manual operation. The terminal serves itself to identify whether the user is a pedestrian or using a wheeled moving body, eliminating the need for users to manually configure settings or select options.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical operation (buttons, switches, or tactile inputs on the mobile terminal) with an automatic sensing system. The acceleration sensor detects physical movement patterns characteristic of wheeled moving bodies versus pedestrian walking, and this detected information is automatically transmitted to control elevator operation, substituting mechanical user interaction with sensor-based automatic detection.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If automatic detection using acceleration sensor is implemented, then user operation is simplified, but the device complexity increases

Engineering Contradiction:
Improvecall registration operationVSAvoidcontrol system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The mobile terminal's acceleration sensor, which is already present for other functions (such as step counting or motion-based interfaces), is repurposed to detect wheeled moving body usage. This multi-functional use of existing hardware avoids adding dedicated detection devices, thereby minimizing the increase in overall system complexity while enabling automatic user type identification.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The mobile terminal acts as an intermediary device that bridges the user and the elevator control system. Instead of adding complexity to the elevator itself, the solution places the detection and processing functions in the mobile terminal, which then communicates with the elevator. This distributes system complexity to a device users already carry, simplifying the elevator's control architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables the elevator to be controlled suitably for users who are not pedestrians, such as those using wheelchairs, without requiring the user to perform complex operations, thereby improving user convenience and accessibility.

Implementation Method 1

when a user type is determined to be a wheeled moving body from a detection result of an acceleration sensor of the mobile terminal

Methodology Applied
Scientific EffectAcceleration sensor detection: Accelerometer

Data Source

PatentUS12214992B2Control apparatus for elevator
Publication Date: 2025.02.04 MITSUBISHI ELECTRIC CORP
  • US12214992B2 patent drawing
  • US12214992B2 patent drawing
  • US12214992B2 patent drawing

AI summary

Provided is a control apparatus for an elevator that can control the operation of the elevator in a suitable manner when a user is not a pedestrian, without requiring the user for a complicated operation. A control apparatus (7) according to the present invention is provided with: a call registration unit (14) that registers a call for an elevator (1) based on information transmitted by wireless communication from a mobile terminal (10) to communication equipment (8) installed in a region passable by a user (9); and an operation control unit (15) that, when a user type is determined to be a wheeled moving body from a detection result of an acceleration sensor (12) of the mobile terminal (10), controls the operation of the elevator (1) in a manner different from a case where the user type is determined to be a pedestrian.