Autonomous Vehicle Thermal Imaging for PV Panel Defect Detection
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Solution Overview
Problem
Current methods for maintaining and monitoring photovoltaic ground-mounted systems are inefficient, as they lack reliable and continuous assessment of individual solar panel conditions, leading to late detection of defects and reduced performance, and are often dependent on manual or remotely controlled methods that are time-consuming and costly.
Innovation Solution
A vehicle system equipped with a control unit, carrier platform, thermal imaging camera, and adjustable mounting device for motion-compensated imaging, allowing for autonomous and automated maintenance and monitoring of photovoltaic modules, including cleaning and floor care, which enables frequent and detailed condition assessment of solar panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual monitoring of solar panels is performed, then detailed condition assessment is possible, but time consumption and labor costs increase significantly
Solution Approach 1:
The patent replaces manual mechanical inspection with an automated vehicle system equipped with thermal imaging cameras and computing units. The system autonomously navigates through the photovoltaic facility, capturing thermal images of solar panels and using image processing algorithms to detect defects, thereby eliminating manual labor while maintaining high measurement precision.
Solution Approach 2:
The vehicle system performs self-navigation and autonomous operation through the photovoltaic facility. The control unit processes thermal images in real-time to identify defective panels, enabling the system to conduct comprehensive monitoring without continuous human intervention, thus reducing both time consumption and labor costs.
2Area of stationary object
If aerial surveillance using helicopters is used, then large-area coverage is achieved, but cost increases and detailed thermal images cannot be obtained
Solution Approach 1:
Instead of using aerial surveillance from high altitude, the patent transitions to ground-level monitoring by deploying a vehicle system that moves through the photovoltaic facility. This dimensional change allows the thermal imaging cameras to operate at optimal distances from the panels, achieving both comprehensive area coverage and high-resolution thermal images simultaneously.
3Adaptability or versatility
If remote-controlled aircraft are used for inspection, then access to solar panels is possible, but continuous monitoring cannot be achieved due to weather dependence
Solution Approach 1:
The patent replaces weather-vulnerable aerial remote-controlled aircraft with a ground-based vehicle system. This substitution eliminates weather dependence while maintaining the ability to access and inspect solar panels throughout the facility, ensuring reliable continuous monitoring operations regardless of weather conditions.
4Measurement precision
If individual solar panel dismantling is performed for checking, then detailed inspection is possible, but productivity decreases and system downtime increases
Solution Approach 1:
The patent replaces the mechanical process of dismantling individual solar panels with a non-contact thermal imaging inspection system. The vehicle-mounted cameras capture thermal images of panels in their installed positions, and image processing algorithms automatically identify defects, thereby achieving detailed inspection without any panel removal, system downtime, or productivity loss.
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 vehicle system allows for early detection of defects and reduced performance in solar panels, optimizing system efficiency by providing continuous and cost-effective monitoring and maintenance, reducing personnel costs and enabling prompt repair or replacement actions.
Implementation Method 1
a thermal imaging camera and an associated computing unit for evaluating an image from the thermal imaging camera
Data Source
Figure 1~2
AI summary
The invention relates to a vehicle system for the autonomous and automated maintenance and/or servicing of a photovoltaic open-field system, comprising a control unit, a carrier platform, a thermal imaging camera, and an associated computing unit for evaluating an image from the thermal imaging camera. An adjustable mounting device for guiding the thermal imaging camera and/or a cleaning unit for cleaning photovoltaic modules is arranged on the carrier platform, and a floor maintenance unit for maintaining the floor in the vicinity of the photovoltaic open-field system is assigned to the vehicle system. The adjustable mounting device is configured such that the thermal imaging camera can be guided in a motion-compensated manner during the operation of the vehicle system, the cleaning of photovoltaic modules, and/or the maintenance of the floor.that a defect or reduced performance of each photovoltaic module in the ground-mounted photovoltaic system can be detected by means of an evaluated image from a thermal imaging camera. Furthermore, the invention relates to a method for the autonomous and automated maintenance and/or servicing of a ground-mounted photovoltaic system.