Pyranometer Surface Cleaning Arm for Automated Irradiance Accuracy

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Solution Overview

Problem

Current cleaning systems for pyranometers in solar installations are complex, expensive, and invasive, requiring manual intervention and not adaptable to various pyranometer models, leading to inefficiencies and increased maintenance costs.

Innovation Solution

A device comprising a base platform, movable arm, driving means, and control system that automatically cleans the surface of pyranometers without interfering with their operation, using a simple design that adapts to multiple models and brands, allowing for dry or wet cleaning and self-cleaning capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If manual cleaning methods are used for pyranometers, then cleaning can be performed, but it requires human intervention and is not automated

Engineering Contradiction:
Improveautomation of cleaning processVSAvoidmanual intervention requirement
Core Design Contradiction:
Extent of automationVSEase of operation

Solution Approach 1:

The cleaning device is designed to autonomously clean the pyranometer surface without requiring manual intervention. The system includes a movable arm with a cleaning element that automatically positions itself and executes cleaning operations based on control signals, enabling the system to serve itself

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical cleaning operations with an automated mechanical system. The movable arm mechanism, driven by motors or actuators, substitutes human hands and tools, transforming a manual task into an automated mechanical process

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

2Reliability

If complex cleaning systems are used for pyranometers, then cleaning effectiveness may improve, but device complexity and cost increase

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The cleaning device is divided into distinct functional segments: a base platform, a movable arm, a cleaning element, and a control system. This segmentation allows each component to perform its specific function independently, simplifying the overall system while maintaining effectiveness

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cleaning device is designed with universal applicability to work with different pyranometer models. The movable arm and cleaning element can be adjusted or configured to accommodate various sensor types, making the system multi-functional and reducing the need for model-specific cleaning solutions

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

3Ease of manufacture

If invasive cleaning methods are used, then cleaning can be achieved, but structural components of the pyranometer are intervened

Engineering Contradiction:
Improvesimplicity of device designVSAvoidstructural intervention
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The cleaning function is extracted as a separate, independent system rather than being integrated into the pyranometer's structural components. The movable arm and cleaning element operate as external entities that interact with the sensor surface without becoming part of its structure, avoiding invasive modifications

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The movable arm acts as an intermediary between the cleaning element and the pyranometer surface. It positions and controls the cleaning element's contact with the sensor, mediating the interaction to ensure cleaning effectiveness while minimizing structural intervention and potential damage

Inventive Principle:
Principle #24Intermediary (Mediator)

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 solution ensures precise and reliable irradiance measurements by maintaining the pyranometer's surface cleanliness, reducing maintenance costs and avoiding structural intervention, thus maximizing energy production in solar plants.

Implementation Method 1

at least one cleaning element to clean the surface of the at least one measuring device and connected to one end of the at least one first driving means to allow its rotation

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

at least one second driving means to allow the rotation of the at least one movable arm around the at least one measuring device

Methodology Applied
Scientific EffectMechanical rotation:

Data Source

PatentUS20240291424A1Device and method for automatically cleaning the surface of at least one measuring device used in solar installations
Publication Date: 2024.08.29 INTI TECH SPA
  • US20240291424A1 patent drawing
  • US20240291424A1 patent drawing
  • US20240291424A1 patent drawing

AI summary

A device and method for automatically cleaning the surface of at least one measuring device used in solar installations, wherein the device comprises at least one base platform; at least one movable arm attached to the at least one base platform; at least a first driving means attached to one end of the at least one movable arm; at least one cleaning element to clean the surface of the at least one measuring device and connected to one end of the at least one first driving means to allow its rotation; at least one second driving means to allow the rotation of the at least one movable arm around the at least one measuring device; and at least one control means to control the operation of the at least one first driving means and of the at least one second driving means.