The integrity of photovoltaic modules is the core foundation for ensuring stable power generation and long-term operation and maintenance of photovoltaic power plants. However, hidden defects such as hidden cracks, virtual soldering, broken grids, black cores, and fragments cannot be identified by naked eye or conventional detection methods. Long term retention can lead to power attenuation, local overheating, and even safety hazards such as short circuits and burns, seriously affecting the power generation efficiency and service life of the power plant. Traditional EL detection equipment has a large volume, complex deployment, relies on fixed sites, and cannot be moved outdoors for detection, making it difficult to adapt to the on-site inspection and batch acceptance needs of large-scale photovoltaic power plants. To solve the problem of hidden defect detection in the industry, Jiangsu Jingwei relies on core infrared imaging technology and ingeniously creates the JW-EL2 portable EL detector. With the advantages of high-definition imaging, all-weather detection, portability and high efficiency, and intelligent recognition, it has become the core tool for non-destructive testing of photovoltaic modules. Rapid detection instrument for hidden cracks in photovoltaic panels
The biggest breakthrough of JW-EL2 portable EL detector is the perfect integration of "high-precision detection+ultimate portability". Traditional EL detection equipment is mostly fixed large-scale equipment, requiring professional sites, complex wiring, and multi person operation, with long detection cycles and high costs. The JW-EL2 adopts an integrated lightweight design, with a compact and lightweight overall structure. Paired with portable storage bags, it can be easily carried and quickly deployed by a single person. It can be tested right out of the box without the need for complex installation and debugging, completely breaking the limitations of the site. It truly realizes the detection of EL defects in photovoltaic modules on outdoor sites, anytime and anywhere, and is suitable for various complex photovoltaic power plant scenarios such as roofs, mountains, deserts, and water surfaces.
Imaging performance is the core competitiveness of EL detectors. The JW-EL2 is equipped with a 24 megapixel high-sensitivity near-infrared industrial camera, paired with a self-developed low distortion optical autofocus lens. Its imaging clarity, color reproduction, and detail capture ability far exceed similar products in the industry. The device can accurately capture micro level defects in photovoltaic cells, whether it is subtle hidden cracks, broken grids, or highly concealed defects such as virtual soldering, delamination, black hearts, and impurities, all of which can be clearly imaged and accurately presented, without blind spots to investigate internal quality problems of components. At the same time, the device is equipped with intelligent anti-interference algorithms, which can effectively filter out environmental light interference such as outdoor natural light, lighting, moonlight, etc., achieving breakthrough precision detection during the day and night, completely breaking free from the limitations of traditional EL devices that can only operate at night, and greatly improving the efficiency of detection work.
In terms of homework endurance and practical experience, JW-EL2 fully meets the needs of outdoor long-term inspection operations. The device is equipped with high-density and safe lithium batteries, powered by energy optimization algorithms. When fully charged, it can continuously perform imaging and testing of over 260 photovoltaic modules, with a battery life of over 9 hours, fully meeting the needs of batch inspection in the field all day long. For remote and off grid operation scenarios, the equipment supports external portable solar charging panels for energy replenishment, eliminating power outages and shutdowns during operation and ensuring the continuity of testing work. The device is equipped with a high-definition touch screen display, which supports real-time imaging preview, defect enlargement viewing, and quick on-site analysis. There is no need to export image analysis in the later stage, greatly reducing the detection and analysis cycle and improving on-site operation efficiency.
Intelligent functional design makes device operation more efficient and professional. JW-EL2 supports wireless image transmission function, and the detected images can be transmitted in real time to tablets and computer terminals. The large screen visualizes the details of defects, making the operation more convenient and the judgment more accurate. The device is equipped with an intelligent defect classification algorithm, which can automatically identify, mark, and count various types of defects, synchronously record detection time, component number, defect location, defect type, and other information, and achieve full traceability of detection data. At the same time, it supports massive image storage, one click export, batch archiving, and is equipped with professional data analysis software. It can automatically generate standardized testing reports, adapt to various work needs such as engineering acceptance, quality inspection filing, and operation and maintenance traceability.
With excellent product performance and scene adaptation capabilities, Jiangsu Jingwei JW-EL2 portable EL detector has been fully applied in various scenarios such as photovoltaic module factory quality inspection, power station engineering completion acceptance, daily operation and maintenance defect investigation, rectification of hidden dangers in old power stations, and special testing by third-party testing institutions. It helps enterprises accurately control component quality, identify hidden safety hazards in advance, reduce power station operation and maintenance losses, and improve power generation revenue. In the future, Jiangsu Jingwei will continue to iterate infrared imaging detection technology, optimize product intelligence functions, and provide better equipment solutions for non-destructive testing and refined operation and maintenance in the photovoltaic industry.
Photovoltaic panel hidden crack rapid detection instrument, outdoor photovoltaic power station tester, photovoltaic module tester
