Mobile Robot UV-C Self-Disinfection for Contamination Control

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Solution Overview

Problem

Existing mobile devices used for disinfecting indoor areas are inefficient and may fail to disinfect all contaminated surfaces, while also potentially spreading contaminants due to their own contaminated surfaces.

Innovation Solution

A method involving a mobile robot that moves in a predetermined path within a designated area using a drive system and outputs ultraviolet (UV) light from a light source onto its wheels and other surfaces, ensuring thorough disinfection and self-cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If mobile robots are used to disinfect indoor areas, then the ability to disinfect surfaces is improved, but the robots themselves become contaminated and spread pathogens to other areas

Engineering Contradiction:
Improvedisinfection capabilityVSAvoidcontamination spread
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The mobile robot performs self-disinfection by applying UV-C light to its own wheels and surfaces. The system includes UV-C light sources positioned to irradiate the wheels and body of the robot, allowing it to autonomously eliminate pathogens from its own surfaces without human intervention, thus preventing contamination spread while maintaining continuous disinfection capability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

UV-C light serves as an intermediary substance that transfers disinfection function from the robot's light sources to both the environment and the robot's own surfaces. The light acts as a mediator that enables the robot to disinfect external areas while simultaneously self-cleaning, resolving the contradiction between disinfection capability and contamination risk

Inventive Principle:
Principle #24Intermediary (Mediator)

2Area of stationary object

If mobile robots disinfect environments, then area coverage is improved, but efficiency and completeness of disinfection are insufficient

Engineering Contradiction:
Improvedisinfection coverageVSAvoiddisinfection efficiency
Core Design Contradiction:
Area of stationary objectVSProductivity

Solution Approach 1:

The mobile robot performs multiple functions simultaneously: it disinfects the environment through UV-C light sources directed at surfaces and air, while also performing self-disinfection of its wheels and body. This multi-functionality allows the robot to maintain high efficiency by eliminating the need for separate self-cleaning operations, thereby improving overall productivity while expanding effective coverage area

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

Solution Approach 2:

The robot maintains continuous disinfection action by integrating self-disinfection into its operational cycle. UV-C light sources continuously irradiate the robot's surfaces and the environment simultaneously, ensuring uninterrupted disinfection coverage without reducing efficiency or requiring停顿 for self-cleaning

Inventive Principle:
Principle #20Continuity of useful action

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

The mobile robot effectively disinfects both the environment and its own surfaces, preventing the spread of contaminants and ensuring efficient disinfection with reduced human error.

Implementation Method 1

outputting ultraviolet (UV) light from a first light source onto a portion of at least one of a plurality of wheels of the drive system

Methodology Applied
Scientific EffectUltraviolet light: Light

Data Source

PatentEP4059524B1Method of self-disinfection of mobile robot
Publication Date: 2025.02.12 BLUE OCEAN ROBOTICS APS
  • EP4059524B1 patent drawingFigure 1
  • EP4059524B1 patent drawingFigure 2
  • EP4059524B1 patent drawingFigure 3

AI summary

Implementations of the disclosed subject matter provide a method that includes moving a mobile robot in a path within a predetermined area using a drive system of the mobile robot, and outputting ultraviolet (UV) light from a first light source onto a portion of at least one of a plurality of wheels of the drive system based on a first dosage level.