The internal hidden damages such as hidden cracks, broken grids, virtual soldering, black cores, and PID attenuation in photovoltaic modules are important causes of the decline in power generation and frequent occurrence of hot spot faults in power plants. These types of defects cannot be recognized by the naked eye, and traditional electroluminescent (EL) detection equipment is limited by nighttime or dark room environments, making it difficult to meet the needs of large-scale inspections on large power plant sites. The LXG30 portable EL detector launched by Shanghai LAILX has successfully overcome the problem of strong light detection during the day, achieving lightweight, all-weather, and high-efficiency non-destructive testing of internal defects in components, bringing revolutionary breakthroughs to the quality control of photovoltaic power plants. Outdoor photovoltaic power station tester

The core technology of LXG30 lies in its high-sensitivity near-infrared CMOS imaging system and self-developed strong light suppression algorithm. The device applies a positive excitation current to the photovoltaic modules, which excites the solar cells to generate near-infrared luminescence signals, which are captured and imaged by a high pixel infrared industrial camera. Its innovative intelligent light control adaptive system, combined with ambient light sensors, does not require the construction of a shading shed, and can obtain high-quality EL images even in noon daylight environments, completely breaking the shackles of traditional equipment that can only work at night and greatly extending the effective daily working hours. In terms of imaging accuracy, LXG30 can clearly identify fine cracks at the 0.1 millimeter level, accurately presenting more than ten types of internal faults such as hidden cracks, fragments, virtual welding, broken grids, black cores and black edges, and sintered mesh patterns, effectively avoiding missed and false detections.

In terms of operational convenience and safety, LXG30 also performs well. The device supports 2.4G Wi Fi wireless remote control, and staff can remotely control the camera shooting and power on/off through a tablet or mobile phone. This not only enables safe operations from 10 meters away and avoids the risk of electric shock, but also enables quick location detection through dynamic video framing. Single component imaging only takes a few seconds, coupled with LAILX's self-developed intelligent image analysis system, it can complete defect recognition and output preliminary reports in a short period of time. The built-in large capacity lithium battery supports a long-lasting battery life of up to 12 hours, meeting the needs of long-term continuous work in the field.

The application of LXG30 covers the entire lifecycle scenarios of component factory sampling, project acceptance, grid connection testing, operation and maintenance troubleshooting, and outdoor verification, and is suitable for mainstream components such as monocrystalline silicon, polycrystalline silicon, double glass, and half chip. As a representative of domestically produced portable EL detection equipment, LXG30 has the comprehensive advantages of all-weather operation, high-definition and precise imaging, and lightweight deployment, greatly shortening the whole station inspection cycle and compressing labor and time costs.

Shanghai LAILX is committed to promoting photovoltaic operation and maintenance towards high efficiency and intelligence through technological innovation. The LXG30 portable EL detector not only provides intuitive and reliable image basis for component quality judgment, but also provides a solid guarantee for the long-term stable income of power plants. With the continuous improvement of quality control requirements in the photovoltaic industry, LXG30 will continue to leverage its technological advantages to help the industry achieve more refined operation and maintenance management, and promote the high-quality development of the photovoltaic industry.

Outdoor photovoltaic power station tester, machine vision inspection, photovoltaic module tester