As the core power generation unit of photovoltaic power plants, photovoltaic modules have hidden defects such as internal cracks, broken grids, virtual welding, hot spots, PID attenuation, and fragments, which are the core causes of module power generation efficiency degradation, power generation decrease, equipment premature aging, and even safety failures. Traditional EL detection equipment generally has problems such as low imaging clarity, high missed detection rate of subtle defects, dependence on dark detection environment, cumbersome operation, and low work efficiency, which are difficult to meet the current high-precision, high-efficiency, and full scene quality inspection and operation needs of photovoltaic modules. To break through the bottleneck of industry detection, LAILX New Energy Technology Co., Ltd. in Suzhou has independently developed and launched the LXG50 portable EL detector based on years of accumulation of photovoltaic optical detection technology. With the core advantages of high-definition imaging, all-weather detection, intelligent focusing, and lightweight portability, it achieves accurate, efficient, and comprehensive detection of hidden defects in photovoltaic modules. Rapid detection instrument for hidden cracks in photovoltaic panels

The imaging performance is the core advantage of LXG50. The equipment is equipped with the industry's top 30 million pixel full frame industrial grade CMOS infrared chip, coupled with a self-developed patented 95 ° wide-angle infrared lens and high infrared photosensitive module. The imaging clarity is improved by more than 50% compared to traditional EL devices, and the imaging accuracy can reach 0.2mm/pixel. It can accurately capture micro cracks with a width as low as 0.2 μ m, completely solving the problem of unclear and indistinguishable micro defects in traditional devices. Relying on its strong infrared sensitivity, the equipment can clearly identify more than ten common hidden faults such as internal cracks, horizontal and vertical grid breaks, virtual welding of solar cells, sintered mesh patterns, black cores and black edges, edge overengraving, mixing, PID attenuation, and hot spot hazards in photovoltaic modules. It comprehensively covers the defect detection needs of module production quality inspection, power station acceptance, and operation and maintenance troubleshooting, achieving zero omission detection of module hazards.

Unlike traditional EL detectors that require the construction of shading shelters and can only detect at night, the LXG50 is equipped with LAILX's exclusive patented daytime detection module, which innovatively optimizes the infrared filtering algorithm and can effectively block external light sources such as sunlight, moonlight, and ambient lighting interference. It can directly carry out detection operations in natural light environments below 300 irradiance without the need to build shading facilities or wait for nighttime operations. It truly achieves all-weather, anytime, anywhere detection during the day, night, indoors, and outdoors, greatly simplifies the detection process, reduces operating costs, and improves the efficiency of photovoltaic EL detection by more than 7 times. This breakthrough technological innovation completely breaks the constraints of traditional EL detection scenarios and adapts to the rapid inspection needs of various distributed photovoltaics and large ground power stations.

In terms of focusing and intelligent homework, LXG50 has achieved a fully automated intelligent upgrade, significantly reducing the threshold for manual operation. The device is equipped with a self-developed full-time low light autofocus system, which does not require additional auxiliary equipment such as rangefinders or fill lights, and does not require manual focusing. It can automatically and accurately focus on complex scenes such as tilted components, low light environments, and long-distance operations. The focusing accuracy covers 1-14 grid lines, and the focusing is stable and efficient. A single task can simultaneously complete high-definition testing of two photovoltaic modules. Compared to traditional single module testing equipment, batch operation efficiency is doubled, perfectly adapting to the work needs of batch quality inspection and large-scale operation and maintenance investigation in power plants. At the same time, the equipment adopts an intelligent control mode of current gradual rise and fall, effectively avoiding secondary damage to photovoltaic modules caused by instantaneous surge currents, providing comprehensive protection for the tested equipment, greatly improving detection safety, and equipped with a 10 second automatic power-off protection mechanism to further avoid operational safety risks.

The portable design and lightweight configuration make the LXG50 perfectly suitable for complex outdoor work scenarios. The equipment adopts an integrated structure design, with highly integrated core components, abandoning the bulky and cumbersome structure of traditional equipment. The whole machine is designed to be lightweight and equipped with a self-developed 2kg lightweight DC mobile power supply, which is fully portable and can be easily carried and quickly deployed by a single worker. It can adapt to various complex operating environments such as rooftop photovoltaics, mountain power stations, water surface power stations, desert power stations, etc., solving the pain points of difficult handling, cumbersome deployment, and inconvenient high-altitude operations of traditional EL equipment. The device supports 2.4G high-speed WIFI wireless control and image transmission function, which can be remotely controlled and detected, real-time image transmission, and online data viewing through a dedicated EL mobile app, freeing itself from the constraints of wired devices and making work more flexible and convenient.

The device parameter configuration is flexible and adaptable to multi scene detection needs. The exposure time supports custom adjustment from 1/250 to 60 seconds, and the detection time can be freely set from 0.1 to 45 seconds. Staff can flexibly adjust parameters according to component working conditions and ambient lighting to ensure the quality of detection imaging in different scenes. In terms of battery life, the device can continuously complete the testing of more than 500 photovoltaic modules when fully charged, with a long-lasting and stable battery life, fully meeting the needs of outdoor batch testing throughout the day. At the same time, the equipment is equipped with dual professional EL analysis software, which can automatically perform intelligent analysis, defect classification, fault marking on the detection images, generate standardized detection reports, support image storage, data export, and historical record tracing, facilitate staff to organize detection data, track component performance status, and provide complete data support for component quality evaluation, fault maintenance, and batch traceability.

With excellent detection performance, all-weather operation capability, intelligent operation experience, and reliable product quality, the LXG50 portable EL detector has been widely used in various scenarios such as factory quality inspection of photovoltaic module manufacturers, acceptance of photovoltaic power plant projects, daily operation and maintenance testing, and evaluation by third-party authoritative testing institutions. With its precise, efficient, and convenient operation advantages, it has gained wide recognition from industry customers. In the future, LAILX in Suzhou will continue to focus on innovation in photovoltaic detection technology, continuously optimize optical imaging and intelligent detection algorithms, polish higher quality detection equipment, help improve the quality and efficiency of the photovoltaic industry, and promote the high-quality development of the new energy industry.

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