Robot Cleaner Self-Test for Sensor and Motor Fault Detection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Robot cleaners lack a self-test capability, which can lead to malfunctions and errors during operation, affecting their stability and user safety, as they do not have a mechanism to test the state of their operation sensing units and other components.

Innovation Solution

A robot cleaner with a self-test mode that includes a driving unit, storage unit for test algorithms, operation sensing units, and an output unit to execute and display test results, allowing users to input commands for self-testing and ensuring the functionality of sensors and motors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a robot cleaner is equipped with self-test capability including test algorithms, operation sensing units, and controller functions, then reliability is improved by preventing malfunctions, but device complexity increases due to additional testing components and procedures

Engineering Contradiction:
Improvesystem stabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The robot cleaner performs self-diagnosis and self-testing of its own components without external intervention. The controller automatically executes test algorithms that activate driving units, sensing units, and cleaning units to detect malfunctions, enabling the system to monitor its own health status independently

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary testing of components before they are needed for actual cleaning operations. By pre-activating and testing driving units, sensing units, and cleaning units through stored test algorithms, the system identifies potential failures before they occur during normal operation, preventing malfunctions in advance

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9928459B2Robotic cleaner and self testing method of the same
Publication Date: 2018.03.27 LG ELECTRONICS INC
  • US9928459B2 patent drawing
  • US9928459B2 patent drawing
  • US9928459B2 patent drawing

AI summary

Disclosed are a robot cleaner and a self testing method thereof. The robot cleaner performs a self test when being initially operated or when required by a user. This may prevent malfunctions or breakdowns of the robot cleaner. Furthermore, the robot cleaner senses a state of an operation sensing unit provided at a body, based on a sensing signal of the operation sensing unit. This may prevent accidents or errors which may occur as the robot cleaner operates.