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, etc., which are the core causes of decreased power generation efficiency, shortened service life, and even safety accidents. These defects are difficult to identify with the naked eye and conventional detection methods are difficult to accurately locate, which has long been a pain point for quality control and efficient operation and maintenance of photovoltaic power plants. Based on industry demand, Suzhou Laikesi New Energy Technology Co., Ltd. (LAILX) is deeply engaged in the research and development of electroluminescence (EL) imaging technology. With years of technical accumulation and scene testing optimization, it has launched the LXG50 portable EL detector, which provides professional solutions for defect detection of photovoltaic modules with the core advantages of high-definition imaging, precise recognition, portability and high efficiency, and intelligent analysis. It has become a "perspective weapon" for quality protection of photovoltaic power plants. Photovoltaic panel testing instrument

Electroluminescence (EL) imaging technology is currently the most effective means of detecting internal defects in photovoltaic modules. By applying a forward bias voltage to the module, it excites the module to emit infrared light, and then captures the image with a high-sensitivity infrared camera, which can clearly present the subtle defects inside the module. Traditional EL detectors generally suffer from problems such as large size, heavy weight, complex operation, dependence on dark environments, and low detection efficiency, making it difficult to adapt to the rapid detection needs of outdoor power plants, especially in distributed photovoltaic power plants, household photovoltaics, and other scenarios. The weakness of poor portability is particularly prominent. The LXG50 portable EL detector is designed specifically for on-site inspection of photovoltaic power plants, breaking through the limitations of traditional equipment and achieving "lightweight, intelligent, all-weather, and high-efficiency" detection, completely revolutionizing the photovoltaic defect detection mode.

High definition imaging and precise recognition are the core competitiveness of LXG50. The equipment is equipped with a 30 million pixel full frame industrial grade CMOS infrared chip, paired with a 17mm/95 ° wide-angle infrared lens, with an imaging accuracy of>0.2mm/pixel. It can clearly capture fine cracks with a width of less than 0.2 μ m, accurately identify hidden cracks, broken grids, fragments, virtual welding, sintered mesh, black cores, black edges, mixed gears, low efficiency chips, PID attenuation, hot spot attenuation and more than ten other internal defects. It detects and covers all types of photovoltaic modules such as monocrystalline silicon, polycrystalline silicon, double glass, half chip, perovskite, etc., fully meeting the defect detection needs of module production, installation, operation and maintenance throughout the entire cycle.

To adapt to all-weather work scenarios, LXG50 breaks through the limitations of traditional EL detectors that need to detect in dark environments. It is equipped with high-sensitivity infrared imaging technology, which can accurately detect both day and night without the need to build a darkroom, greatly improving detection flexibility and efficiency. The device adopts fully automatic focusing technology, which eliminates the need for manual distance measurement and enables fast imaging upon startup. The single component detection cycle is only 3-10 seconds, and the efficiency of string detection far exceeds traditional devices; Equipped with WIFI wireless operation, image transmission and download functions, the camera and power can be remotely controlled through devices such as tablets and mobile phones, allowing real-time viewing of imaging images. There is no need to frequently travel between devices and components, and a single person can complete inspection tasks, greatly reducing labor costs.

In terms of intelligent and convenient design, LXG50 fully meets the needs of outdoor operations. The whole machine adopts a lightweight design and is equipped with a high-strength portable protective case, which includes a complete set of equipment such as the host, camera, tripod, power supply, etc. It can be easily carried and transported by a single person, and can be quickly deployed in various complex power plant scenarios such as mountains, roofs, and water surfaces; Equipped with LAILX's independently developed AI intelligent analysis system, it can automatically identify defect types and mark their locations, generate standardized testing reports, support cloud upload and storage, facilitate data traceability and management, and solve the problems of low efficiency and large errors in traditional manual detection and identification; Equipped with dual operating software for Android and iOS, the interface is simple and friendly, and the operation is easy to understand. Novices can proficiently operate it after simple training.

As a benchmark product for domestic portable EL detectors, LXG50 has achieved independent research and development in core chips, imaging algorithms, and software systems, breaking the monopoly of foreign technology. While its performance is comparable to international brands, it has higher cost-effectiveness and localized service advantages. At present, this equipment has been widely used in various scenarios such as factory quality inspection of photovoltaic modules, acceptance of power station arrivals, post installation testing, daily operation and maintenance inspections, and third-party testing. It is highly trusted and recognized by the State Grid, large-scale photovoltaic power station operators, module production enterprises, and testing institutions.

In the future, LAILX in Suzhou will continue to focus on innovation in photovoltaic defect detection technology, continuously optimize the performance of LXG50 products, upgrade AI defect recognition algorithms, expand more practical functions, and provide more efficient, accurate, and intelligent defect detection solutions for the photovoltaic industry. The launch of LXG50 portable EL detector not only fills the gap of high-end portable EL detection equipment in China, but also helps the photovoltaic industry improve its quality control level, reduce operation and maintenance costs, and promote the development of the photovoltaic industry towards high-quality and sustainable direction.

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