On-site Drone Inspection
We have the legal qualification registered by CAA and the experience of applying for the operation in the restricted area, and we have obtained the consent of the competent authority and its conditions before the activity. According to the site information form filled out by the customer, on the day of aerial photography, a professional pilot with a professional operating license will carry the equipment and conduct aerial photography under sufficient sunlight (more than 600W/m²), the system is in power, and there is no serious dirt on the surface of the module (the heat shift generated by serious dirt will interfere with the determination of other thermal defects). All drone equipment is insured with drone liability insurance, up to NT$3 million for accidental bodily injury and NT$1 million for accidental physical damage. Professional pilots will use IRUAV Toolkit to confirm the completeness of data collection and upload the data for subsequent AI analysis and expert review after inspection.
AI Analytics and Expert Review
We have experience in thermal image inspection of different types of solar energy systems, and have collected a large amount of thermal image and visible light data of Taiwan's solar energy systems, and have carried out the industry's most detailed thermal defect categorization and established a database of anomalies affecting the power generation and safety of the system. Currently, the average accuracy of the AI model has exceeded 90%, and we have integrated the IRUAV Analysis software (Invention Patent No. I727785) to successfully apply AI technology in the judgment of thermal image air shot data. We will continue to optimize and apply the AI model, and achieve the accuracy target close to 100% through expert review and provide supplementary suggestions in the report. Customers can clearly see the results of AI analysis and expert review through the cloud vision system.
Cloud Visualization System
To help customers manage their numerous solar assets, a cloud vision system (New Patent No. M659668 / Technical Report Code 6) has been developed to save and present thermal image aerial data and automatically generate reports in a consistent format. Users can connect to the cloud vision system through the IRUAV APP, which is currently available for desktop computers and mobile devices. The search function allows users to quickly locate the site, the thermal defects marked on the modules in the ortho-map allow maintenance personnel to quickly and correctly find the abnormal modules, the comparison function of the inspection data from previous inspections is similar to a health check, and there is also a maintenance log to record the status of the personnel, which is important to the customers who adopt data-driven management for their PV assets. It is an important tool for customers to adopt data-driven management for solar assets.
Module Power Measurement
The output power of PV modules is highly sensitive to temperature fluctuations, varying by approximately 0.4–0.5% per 1°C change. To ensure precise performance measurement, the International Electrotechnical Commission (IEC) has established Standard Test Conditions (STC), defining module power ratings at 25°C, 1,000W/m² illumination, and the AM1.5 standard spectrum. Laboratory testing under these conditions provides consistent and reliable results. If a PV system’s power generation is lower than expected despite no abnormalities detected through aerial inspection, selected modules can be sent to a laboratory for STC power testing. This process helps determine whether systematic degradation, such as LeTID, has occurred.
Electroluminescence Measurement
With a large number of PV modules installed outdoors, detecting internal damage with the naked eye is challenging. If aerial inspections reveal a significant number of non-shading hot spots, selected PV modules can undergo electroluminescence (EL) testing in a laboratory for further evaluation. EL testing utilizes the electroluminescence properties of PV modules. When a specific current is applied, defects become visible, where the more defects present, the weaker the luminous intensity. This process effectively uncovers micro-cracks, disconnections, and other hidden issues. Additionally, by analyzing EL data and defect patterns, the root cause of abnormalities can be identified. If the issue originates from module quality, a laboratory report provides clear validation, making quality concerns easier to recognize and address.
Dry and Moisture Insulation Measurement
Solar system voltage is generally as high as 1000~1500V, this high voltage exists in the system conductors. If the solar module insulating materials, such as backsheets and EVAs, deteriorate, it may cause leakage, resulting in inverter tripping or inductance. Laboratory dry and wet insulation current testing can be utilized to determine the dielectric strength of solar module insulation materials when subjected to high voltages. The test conditions are 1000V plus 2 times the system voltage into the junction box connector and aluminum frame. If the calculated insulation resistance after the insulation test is less than 40 MΩ/meter squared, the insulation function or material of the solar module may have deteriorated.
Cybersecurity Certified Drone
In addition to our self-developed drone and telescopic rod solutions, we have also been closely monitoring the development of Taiwan's drone industry. In recent years, the government has been actively developing the drone-related industries, and the local supply chain and national team are taking shape, and the safety certification system has been gradually established. Domestic manufacturers have independently researched and developed flight controls, ground station systems, RTK modules, three-optical lenses, motors and batteries, and other important equipment. We are actively evaluating the drone equipment that has passed the security certification and importing it into the platform as an operational tool to be used in the inspection of governmental agencies' solar systems, and we anticipate that we will have initial results by 2026.
DJI Enterprise Drones
From drone flight control systems to aerial photography carrier design, multi-axis gimbals to high-definition image transfer, DJI's products are widely used in aerial photography, film, mapping, firefighting, rescue, energy and other fields. The platform has been successfully introduced into Mavic 3T, Matrice 4T and Matrice 350 RTK + H20T for thermal image aerial photography operations, and developed IRUAV Toolkit software to allow pilots to collect complete data in the field and upload it to the platform for analysis, we also sell the above platform-compatible drones and provide original after-sales service.
Training Programs
The course is written by IRUAV, mainly based on the IEC 62446-3 technical document, it explains how to operate a platform-compatible industrial drone, collect complete thermal image aerial photography data through IRUAV Toolkit, categorize thermal defects and use IRUAV APP. The course is both theoretical and practical and covers three topics: ① Thermal Imaging Aerial Photography Principles and Technical Documents ② Key Points for Industrial Drone Operation and CAA Regulations ③ IRUAV PLATFORM Usage. The course schedule includes 3 hours of online course (theory) + 2 hours of outdoor course (equipment setup and practical exercises) + IRUAV Toolkit.
