Dynamic Button Assignment for Elevator Touchscreen Wear

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Solution Overview

Problem

Elevator destination entry systems face issues with touchscreen display failure due to repeated pressing of the same location, leading to dead spots and surface damage, necessitating frequent replacements.

Innovation Solution

Implementing a dynamic assignment system that changes the location of selection buttons on the touchscreen display based on usage patterns, such as frequency of selection, to distribute wear evenly and prevent repeated pressing on the same spot.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If selection buttons are displayed at fixed locations on the touchscreen display, then users can easily locate and press them, but the same location is pressed repeatedly leading to dead spots and surface damage

Engineering Contradiction:

Improveease of locating selection buttonVSAvoidtouchscreen display lifespan

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent applies dynamics by making the selection button locations changeable rather than fixed. The system dynamically reassigns selection buttons to different locations on the touchscreen display based on usage patterns, preventing wear at single fixed points while maintaining ease of operation through predictive algorithms that anticipate user needs.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of button location from static to dynamic. By monitoring usage frequency and predicting future selections, the system adjusts the position parameters of selection buttons on the display, distributing physical wear across multiple locations while keeping the interface intuitive through intelligent repositioning.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If the touchscreen display interface is replaced frequently due to dead spots and surface damage, then operational reliability is maintained, but replacement costs and downtime increase

Engineering Contradiction:

Improvetouchscreen display functionalityVSAvoidreplacement time and cost

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by proactively redistributing selection button locations before the touchscreen display reaches its failure point. The system monitors usage patterns and predicts which areas will experience wear, repositioning buttons in advance to prevent dead spot formation, thereby extending display life and avoiding costly replacements.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback by continuously monitoring touchscreen usage patterns and using this information to dynamically adjust button locations. The system tracks which areas are pressed most frequently and responds by redistributing buttons to less-worn areas, creating a closed-loop system that prevents wear accumulation and extends display lifespan.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11440767B2Dynamic assignment of selection buttons on a destination entry system of an elevator

Publication Date: 2022.09.13 OTIS ELEVATOR CO

AI summary

A system for dynamic assignment of buttons on destination entry terminals (DETs) is provided. The system performs operations that include identifying a message for display on a touchscreen display of a destination entry system of an elevator. The message includes a selection button for display on the touchscreen display. The at least one selection button is displayed at a first location on the touchscreen display. The at least one selection button is displayed at a different location on the touchscreen display once a rearrangement criterion is satisfied.