Robotic cleaning apparatus and system
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Solution Overview
Problem
Conventional window washing methods for high-rise buildings are hazardous and inefficient due to the need for manual scaffolding, restrictive equipment, and potential damage to windows, while existing robotic solutions either require contact with the building or have limitations such as dependence on specific building structures or high weight and complexity.
Innovation Solution
A robotic device with a thruster system comprising two sets of rotors to maintain a specified distance from a vertical or sloped surface, allowing for non-contact operation and stable positioning, equipped with a liquid or gas delivery system for cleaning, and a tethering mechanism for altitude adjustment, enabling efficient and safe window washing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual scaffolding methods are used for window washing, then workers can access high-rise buildings, but the operation becomes dangerous and inefficient due to restrictive equipment and wind exposure
Solution Approach 1:
The patent replaces the mechanical scaffolding system with an autonomous robotic device that uses computer vision and navigation to autonomously navigate and clean windows, eliminating the need for workers to physically support themselves on scaffolds
Solution Approach 2:
The robotic device is self-contained with onboard cleaning mechanisms, water tanks, and power systems that allow it to perform window cleaning independently without requiring human operators to be present on the scaffold
2Productivity
If conventional robotic cleaners require contact with the window surface, then cleaning effectiveness is improved, but the risk of window damage increases
Solution Approach 1:
The patent introduces an intermediary layer (cleaning solution/water) between the robotic device and the window surface, allowing the cleaning to occur through chemical and fluid mechanisms rather than direct mechanical contact that could cause damage
Solution Approach 2:
The robotic device uses hydraulic or pneumatic systems to deliver cleaning solutions and operate cleaning mechanisms without requiring solid mechanical contact with the window surface
3Productivity
If robotic cleaners are equipped with water tanks for cleaning operations, then cleaning capability is improved, but the weight and size of the apparatus increases
Solution Approach 1:
The patent divides the robotic system into modular components, with the water tank and cleaning mechanisms as separate modules that can be configured based on specific cleaning requirements, allowing optimization of weight versus capability
4Reliability
If manual window washing requires technicians to maintain stable support on scaffolds, then safety is improved, but the time and effort required increases significantly
Solution Approach 1:
The patent replaces the manual mechanical support system with an autonomous robotic platform that uses integrated propulsion and stabilization systems to maintain its position independently, eliminating the time workers spend maintaining support
5Measurement precision
If existing robotic cleaners require specific building structures like vertical grooves, then positioning accuracy is improved, but adaptability to different buildings decreases
Solution Approach 1:
The patent designs the robotic device with universal positioning capabilities using computer vision and adaptive navigation systems that can identify and navigate to windows on various building structures without requiring specific structural features like vertical grooves
Solution Approach 2:
The robotic device employs dynamic positioning systems that can adapt to different building geometries and window arrangements in real-time, allowing it to maintain positioning accuracy across diverse architectural styles
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 robotic device ensures safe and efficient window washing by maintaining a stable distance from the surface, reducing the risk of damage and improving operational efficiency, while allowing for precise control over cleaning tools and adaptability to varying wind conditions.
Implementation Method 1
A first set of at least two rotors mounted to the body and generating thrust in a first direction towards the vertical or sloped surface
Implementation Method 2
A second set of at least two rotors mounted to the body and generating thrust in a second direction away from the vertical or sloped surface
Implementation Method 3
A sensor mounted to the body and measuring a distance between the body and the vertical or sloped surface
Data Source
AI summary
A robotic device for working on a surface includes a body including: a tool for working on the surface; a controller moving the body along the surface; a first set of at least two rotors mounted to the body and generating thrust in a first direction towards the surface; and a second set of at least two rotors mounted to the body and generating thrust in a second direction away from the surface. A sensor measures a distance between the body and the surface, and a computer adjusts the first set of rotors and the second set of rotors in response to the sensor to place the body in position to work on the surface. In particular, the first set of rotors and the second set of rotors generate a net force on the body to it in non-contact position to work on the surface.