Cleaning system comprising supply robot and cleaning satellites and method for cleaning

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing cleaning systems for surfaces are limited in their ability to perform comprehensive cleaning, especially in areas difficult to access, due to limitations in suction power and the need for separate storage and energy sources for cleaning satellites.

Innovation Solution

A cleaning system comprising an automatically movable supply robot and cleaning satellite with a technical control link for cooperative operation, where the supply robot provides continuous or discontinuous delivery of cleaning agents, energy, and water, eliminating the need for storage on the satellite, and allowing the satellite to operate autonomously with independent navigation and mapping of the environment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If cleaning satellites have their own storage capacity for auxiliary substances and energy, then they can operate autonomously for longer periods, but the device complexity and weight increase

Engineering Contradiction:
Improveautonomous operating phaseVSAvoidstorage capacity requirements
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The patent extracts the storage function from the cleaning satellites and relocates it to the supply robot. The supply robot carries large-capacity tanks for auxiliary substances (cleaning agents, rinsing water) and energy, while cleaning satellites operate with minimal or no local storage, receiving continuous or periodic supplies through hose connections.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a hose connection as an intermediary between the supply robot and cleaning satellites. This flexible connection enables continuous transfer of auxiliary substances and energy, allowing satellites to extend their operating duration without carrying large storage capacities themselves.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Duration of action of moving object

If cleaning satellites carry their own energy storage devices with significant capacity, then they can operate independently for longer, but the weight and volume of the satellite increase

Engineering Contradiction:
Improveindependent operation timeVSAvoidsatellite weight
Core Design Contradiction:
Duration of action of moving objectVSWeight of moving object

Solution Approach 1:

The energy storage function is extracted from the cleaning satellites and centralized in the supply robot. The supply robot carries large-capacity energy storage devices and transfers energy to satellites through the hose connection during operation or during periodic docking at service stations.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The supply robot serves multiple functions: it acts as a mobile base station for recharging satellites, a supply vehicle for delivering auxiliary substances, and a coordinating control unit. This multi-functionality allows the system to reduce overall weight by eliminating redundant storage devices on individual satellites.

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

3Productivity

If the supply robot continuously supplies auxiliary substances to cleaning satellites, then comprehensive cleaning performance is achieved, but the hose connection length and system complexity increase

Engineering Contradiction:
Improvecleaning coverageVSAvoidhose connection system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The hose connection system is designed to be dynamic and adaptive. The hose length and connection configuration can adjust based on the supply robot's position and the satellite's location, enabling flexible operation in various environments while maintaining continuous supply for comprehensive cleaning coverage.

Inventive Principle:
Principle #15Dynamics

4Adaptability or versatility

If cleaning satellites move to hard-to-reach areas, then cleaning coverage is improved, but the ability to maintain connection with the supply robot becomes difficult

Engineering Contradiction:
Improveaccess to hard-to-reach areasVSAvoidconnection stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The hose connection acts as a flexible link between the supply robot and cleaning satellites. This flexible connection allows satellites to navigate into tight spaces and hard-to-reach areas while maintaining a reliable supply connection, as the hose can bend and extend to accommodate the satellite's movement patterns.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentEP3581083B1Cleaning system comprising supply robot and cleaning satellites and method for cleaning
Publication Date: 2020.05.20 FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
  • EP3581083B1 patent drawingFigure 1~2
  • EP3581083B1 patent drawingFigure 3~5

AI summary

The invention relates to a cleaning system for surfaces (12, 14, 16) designed for automatic and autonomous operation, comprising at least one automatically moving supply robot (20) and at least one automatically moving cleaning satellite (30, 30', 40, 40'), wherein a control-technical link for cooperative operation exists between the at least one supply robot (20) and the at least one cleaning satellite (30, 30', 40, 40').According to the invention, the at least one supply robot (20) can hold at least one auxiliary substance for continuous or discontinuous dispensing from an auxiliary substance storage tank (27) to the at least one cleaning satellite (30, 30', 40, 40') and the at least one supply robot (20) can automatically take the at least one auxiliary substance and energy from a service station (3) and return to the location of the cleaning task on the surface (12, 14, 16) and at least to transfer the at least one auxiliary substance to the at least one cleaning satellite (30, 30', 40, 40').