Signal-Guided Cleaning Robot Navigation for Precise Docking

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Solution Overview

Problem

Conventional automated cleaning devices lack the ability to controllably move to specific locations for cleaning and face inconvenience in handling, as they primarily follow predetermined routes and struggle to accurately navigate to areas that require attention.

Innovation Solution

A signal-guided cleaning device equipped with first signal receivers, drivers, and a power supply unit that responds to external emission signals to move towards their source, utilizing a controlling unit to decode signal intensity and create corresponding driving instructions for mobile elements, enabling precise navigation and charging dock alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an automated cleaning device follows a predetermined route for cleaning, then the cleaning coverage is ensured, but the device fails to controllably arrive at specific locations that require attention

Engineering Contradiction:
Improveability to navigate to specific locationsVSAvoidnavigation control system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces an external signal emitter as an intermediary that transmits guidance signals to the cleaning device. This mediator enables the device to locate and navigate to specific positions without requiring complex autonomous navigation systems, thereby improving adaptability while keeping the device's own complexity low.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces complex mechanical autonomous navigation systems with a signal-based guidance system. Instead of relying on sophisticated sensors, processors, and decision-making algorithms for autonomous navigation, the device uses simple signal receivers to detect external guidance signals and follow them to target locations.

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

2Extent of automation

If a mobile charger automatically moves to charge the cleaning device, then charging automation is achieved, but the handling convenience is reduced

Engineering Contradiction:
Improveautomatic chargingVSAvoidhandling convenience
Core Design Contradiction:
Extent of automationVSEase of operation

Solution Approach 1:

The cleaning device is equipped with automatic docking and charging capabilities that allow it to autonomously return to the charging dock and recharge when battery level is low. This self-service mechanism maintains high automation while improving ease of operation, as users simply need to place the device on the dock without requiring complex manual charging procedures.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If the cleaning device uses signal intensity to determine driving speed, then navigation precision is improved, but the device complexity increases

Engineering Contradiction:
Improvesignal intensity detection accuracyVSAvoidsignal processing system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent utilizes signal intensity as a variable parameter to control driving speed dynamically. By changing the speed parameter based on received signal strength, the device achieves precise navigation toward signal sources or charging docks without requiring complex processing systems, simply adjusting speed according to the intensity parameter.

Inventive Principle:
Principle #35Parameter changes

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 signal-guided cleaning device effectively moves towards emission signal sources and accurately navigates to charging docks, improving handling convenience and precision in cleaning operations by using distinct driving speeds based on signal intensity and coded formats.

Implementation Method 1

the first signal receivers configured on the body receive external first emission signals within detection ranges so as to provide a first reception instruction

Methodology Applied
Scientific EffectSignal reception: Electromagnetic Induction

Implementation Method 2

the drivers are configured in the body; the mobile elements configured on the bottom side of the body and connected to at least one of the drivers are driven by the drivers based on the first reception instructions to move the body toward a direction from which the first emission signals originate

Methodology Applied
Scientific EffectSignal-guided motion: Electromagnetic Propulsion

Implementation Method 3

The power supply unit in the body provides electricity to the signal receivers and drivers

Methodology Applied
Scientific EffectBattery power supply: Battery (electricity)

Data Source

PatentUS10268189B2Signal guided cleaning device and signal guided cleaning system thereof
Publication Date: 2019.04.23 YAN JASON
  • US10268189B2 patent drawing
  • US10268189B2 patent drawing
  • US10268189B2 patent drawing

AI summary

The present application provides a signal guided cleaning device and a signal guided cleaning system thereof. The signal guided cleaning system includes a signal emitter and a signal guided cleaning device. The signal emitter is used to emit at least one first emission signal. And the signal guided cleaning device includes a body, at least one mobile element, at least one driver, and a controlling unit. Each first signal receiver received the first emission signal in receiving range and provides a first reception instruction. Each mobile element connects with the corresponding driver. Controlling unit connects with the first signal receivers and drivers, provides a corresponding first controlling instruction according to the received first reception instruction, and drives the corresponding drivers so as to make the mobile elements drive the body forward an emitting direction of the first emission signal.