The scale of existing photovoltaic power plants in China is constantly expanding, and a large number of components that were put into operation in the early stage are gradually entering the aging cycle. Internal defects such as hidden cracks, virtual welding, broken grids, fragments, PID decay, etc. in the battery cells are important causes of component power attenuation and hot spot faults. These defects are hidden inside the components and cannot be recognized by the naked eye. EL electroluminescence non-destructive testing has become an indispensable key means of component quality control. Traditional portable EL devices have pain points such as difficulty in manual focusing, blurred imaging in low light environments, bulky equipment, and low efficiency in manually interpreting defects. Field power station inspections require a lot of time and manpower. Suzhou LAILX has launched the LXG50 portable EL detector, which relies on its self-developed optical imaging system and AI intelligent recognition algorithm, taking into account the multiple advantages of high-definition imaging, lightweight portability, and intelligent data analysis. It provides an integrated solution for the factory re inspection, arrival acceptance, and on-site operation and maintenance testing of photovoltaic modules, and widely serves major energy groups, third-party testing institutions, and EPC engineering enterprises. Photovoltaic power station tester

The core hardware configuration of the LXG50 portable EL detector has been fully upgraded, equipped with a 26 million level high-sensitivity infrared imaging camera and a high-performance infrared photosensitive chip. The imaging clarity is high, and it can capture micro level fine cracks, clearly restore various internal defect details such as hidden cracks, broken grids, virtual soldering, black cores, sintered mesh patterns, and thermal spot attenuation. It is compatible with mainstream component types on the market such as monocrystalline silicon, polycrystalline silicon, double glass double-sided, half sheet, and perovskite. A single field detection can capture up to two components at the same time, suitable for all testing conditions from laboratories to field power stations. The device is equipped with a patented full-time dark light autofocus system, which does not require manual distance measurement and focusing. Whether it is in a dark light environment at night or a photovoltaic array installed on a slope, the device can complete automatic focusing, completely solving the industry problems of inaccurate focusing and blurry imaging of traditional manual focusing equipment. The detection efficiency is several times higher than that of traditional equipment, greatly reducing the technical threshold for on-site operators. The supporting programmable integrated detection power supply can directly complete power on/off and parameter adjustment through wireless means on the software end. The camera and power signal are synchronized and linked, eliminating the need for complex wiring and debugging steps on site and simplifying the on-site operation process.

The equipment is designed to be lightweight around outdoor inspection scenarios, with a complete set of cameras, power supplies, and tripods weighing only 6.5kg. After being stored in a customized protective box, it can be carried and transported by a single person. Areas that are difficult for vehicles to reach, such as mountain photovoltaics, rooftop distributed systems, and fishery photovoltaic complementary power stations, can also be easily inspected. The whole machine shell is made of high-strength engineering materials, with a protection level of IP64, and has the ability to prevent dust, water, and wind and sand. It can work stably in a wide temperature range of -20 ℃ to 50 ℃, and can easily cope with complex regional environments such as harsh deserts in the northwest and high temperatures, high humidity, and heavy rainfall in the south. The device is equipped with AI App intelligent detection software, which is compatible with Android and IOS mobile terminals. It relies on WIFI wireless to achieve remote camera control and real-time image feedback. The EL imaging effect can be viewed on site. The AI algorithm can automatically identify, mark, and count various component defects, avoiding subjective errors caused by manual visual judgment. After defect recognition is completed, a standardized detection report is automatically generated with one click, accompanied by defect location, defect type, and power station location information, which facilitates the positioning and rectification of defective components in the later stage. The software supports local storage and cloud backup of image detection, and can compare and analyze multi period detection data of the same component, track the long-term aging and decay of the component, and provide objective data basis for power plant operation and maintenance decisions.

The LXG50 portable EL detector has been applied in a large number of photovoltaic projects across the country. It is used by component manufacturing enterprises for factory quality sampling, EPC enterprises for project delivery component acceptance, and operation and maintenance units for regular inspection and hidden danger detection of existing power stations. Equipment is not just about providing hardware products, LAILX synchronously provides operation training, image interpretation guidance, and lifelong algorithm iteration upgrade services to help customers quickly master the entire EL detection workflow. The long-term benefits of photovoltaic power plants cannot be separated from component quality control. The LXG50 portable EL detector has precise non-destructive testing capabilities to uncover hidden internal defects of components, avoid the risk of hot spot fire in advance, reduce power generation losses, and help the photovoltaic operation and maintenance industry move towards refinement and intelligence, providing solid testing equipment support for the high-quality development of the photovoltaic industry.

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