Robot Cleaner Remote Mapping for Precise Wireless Control

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Solution Overview

Problem

Existing robot cleaners face challenges in precisely measuring the relative position between the user and the device, leading to difficulties in detecting the robot's location and requiring the user to be in the same area for wireless operation, which can result in delayed and imprecise control, limiting the use of manual operation modes.

Innovation Solution

A robot cleaner system equipped with a remote control device featuring a camera that generates image information to map the robot's location and surroundings, allowing for precise location and posture determination through recognition marks, enabling intuitive control and location-based services.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If robot cleaner uses traditional position detection methods, then device complexity is reduced, but measurement precision of relative position deteriorates

Engineering Contradiction:
Improverelative position measurement precisionVSAvoidposition detection system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces recognition marks as an intermediary element between the robot cleaner and the external detection system. These marks serve as a mediator that enables precise position detection without requiring complex sensors or systems on the robot itself. The recognition marks are detected by an external device (such as a camera-based system), allowing the robot's position to be determined indirectly through image processing and coordinate transformation, thus resolving the contradiction between measurement precision and device complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates a virtual copy of the physical space by establishing a correspondence between the real-world environment and a virtual coordinate system. The recognition marks in the physical world are mapped to corresponding positions in the virtual space, allowing the robot's position to be determined through image processing rather than direct physical measurement. This copying approach enables precise position detection while keeping the robot's hardware simple.

Inventive Principle:
Principle #26Copying

2Ease of operation

If robot cleaner requires user to be in the same area for wireless operation, then control precision is improved, but ease of operation deteriorates

Engineering Contradiction:
Improveremote control accessibilityVSAvoidrobot location detection precision
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent introduces recognition marks as an intermediary that enables the external device to accurately determine the robot's position and orientation without requiring the user to be physically close to the robot. The recognition marks provide reference points that allow the external device to calculate the robot's location and posture through image processing, thus enabling remote control while maintaining location detection precision.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the need for direct line-of-sight or proximity-based control with an optical measurement system. Instead of requiring the user to be near the robot for manual operation, the system uses image capture and processing to determine the robot's position and transmit control signals wirelessly. This substitution of mechanical proximity requirements with optical measurement enables easier operation from a distance while maintaining control precision.

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

3Measurement precision

If robot cleaner uses recognition marks for position detection, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improverobot location and posture detection precisionVSAvoidsystem structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces recognition marks as an intermediary element that enables precise position and posture detection without requiring complex sensors or systems on the robot itself. These marks serve as reference points that can be detected by an external device, allowing the robot's location and orientation to be determined through image processing and coordinate transformation, thus resolving the contradiction between measurement precision and device complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10052004B2Robot cleaner system and control method of the same
Publication Date: 2018.08.21 LG ELECTRONICS INC
  • US10052004B2 patent drawing
  • US10052004B2 patent drawing
  • US10052004B2 patent drawing

AI summary

A robot cleaner system may include a robot cleaner that may be automatically driven while performing a cleaning operation, a recharging base that receives the robot cleaner, and a remote control device that remotely controls the robot cleaner. The remote control device may also generate mapping information between an actual region and a virtual region based on image information generated by a camera provided on the robot cleaner, and/or image information generated by a camera on the recharging base.