Mobile Route Detection for Accurate Automatic Elevator Calls

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Solution Overview

Problem

Existing elevator systems face issues with unnecessary call registrations due to information reception from mobile terminals carried by non-users as communication areas expand.

Innovation Solution

An elevator system equipped with a mobile terminal featuring an acceleration sensor and direction sensor to specify a boarding route, calculating a feature quantity of the route, and determining whether it is a boarding route for automatic call registration, preventing useless registrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the communication area is expanded to enable automatic call registration, then the ease of operation is improved, but the reliability deteriorates due to receiving information from non-users

Engineering Contradiction:

Improveautomatic call registrationVSAvoidcall registration accuracy

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system dynamically adjusts the communication area boundary based on the detected route. The receiving device monitors movement patterns and adapts the reception range to only include areas along the detected route, transforming a static communication zone into a dynamic one that follows the user's path to the elevator.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The route detection function acts as an intermediary between the mobile terminal and the receiving device. It processes the raw communication signals and filters them based on route information, allowing only calls from terminals that are actually moving toward the elevator to be registered.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If the communication area is expanded for automatic call registration, then the productivity is improved, but the loss of information increases due to useless call registrations

Engineering Contradiction:

Improvecall registration efficiencyVSAvoiduseless call registration

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

The communication area is transformed from a static fixed region to a dynamic zone that expands and contracts based on detected user movement. The system actively adjusts the reception boundary to follow the route toward the elevator, ensuring that communication coverage matches actual user behavior patterns.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the parameter of communication area radius based on route detection results. When a terminal is detected moving toward the elevator, the communication area is expanded in that direction; when no valid route is detected, the area is reduced, thereby optimizing signal reception parameters dynamically.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12410035B2Elevator system controlling elevators in response to call information from a mobile terminal

Publication Date: 2025.09.09 MITSUBISHI ELECTRIC CORP

AI summary

A mobile terminal (7) has an acceleration sensor (8) and a direction sensor (9). The mobile terminal (7) includes a route specifying unit (11), a calculating unit (13), a determining unit (14), and a communicating unit (16). The calculating unit (13) calculates a feature quantity of a route specified by the route specifying unit (11) on the basis of the route specified by the route specifying unit (11). The communicating unit (16) transmits call information to the communicating device (6) when the determining unit (14) determines that the route specified by the route specifying unit (11) is a boarding route.