Photovoltaic power plants operate outdoors for a long time, causing temperature anomalies such as component hot spots, overheating of junction boxes, virtual connections in combiner box circuits, aging and heating of cables, and high temperatures in inverter power devices. These are the core causes of decreased power generation efficiency, component burnout, and power plant fire accidents. These temperature anomalies have small temperature differences and cannot be recognized by the naked eye. Traditional contact thermometers can only measure at a single point and cannot capture the temperature distribution throughout the entire area, resulting in a high risk of missed inspections. Infrared thermal imaging technology, with its advantages of non-contact temperature measurement and long-distance fast scanning, has become the core tool for photovoltaic operation and maintenance to troubleshoot thermal faults. However, most thermal imaging instruments on the market have problems such as bulky body, low imaging resolution, large temperature measurement errors, short outdoor endurance, and high professional operation barriers, making it difficult to adapt to the rapid inspection needs of roofs and mountains in large areas. Suzhou Laikesi LAILX relies on the accumulation of infrared sensing and image algorithm research and development, and has launched the LX-F100 handheld infrared thermal imaging instrument, which is specially customized for outdoor inspection of photovoltaics and power plants. It takes into account portable touch, high-definition imaging, high-precision temperature measurement, and intelligent fault recognition, and creates a lightweight global temperature hidden danger investigation equipment, providing efficient technical support for the normal and safe operation and maintenance of photovoltaic power plants. Compact, portable, precise imaging

The LX-F100 adopts an ergonomic one handed handheld body design, with a total weight of only 580g. It fits the anti slip rubber handle of the palm and is not easy to fatigue during long-term outdoor inspections. The small size of the body can be directly carried in a tool kit, and can be flexibly operated when climbing high, narrow roofs, or small areas between equipment. It is different from the bulky design of large professional thermal imagers that require both hands to lift. The body protection level is IP54, with anti drop, waterproof, and dustproof properties. It has passed a 1.2-meter drop test and is suitable for rough working environments on construction sites. The working temperature range is -30 ℃ to 55 ℃, and it can work stably in cold winter and high temperature outdoor environments in summer. The front-end is equipped with a professional photovoltaic customized infrared lens, paired with a 256 × 192 high-definition infrared detector. The infrared imaging image is rich in details, and the smallest temperature difference that can be recognized is 0.06 ℃. It can accurately capture hidden faults such as component micro heat spots and wiring terminal micro temperature differences; Built in visible light dual light fusion module, infrared thermal image and real scene image are overlaid on the same screen, and the fusion mode can be switched with one click to accurately locate the physical components corresponding to the heating point, avoiding the trouble of operation and maintenance personnel having difficulty matching the fault location.

The temperature measurement performance fully matches the testing standards of the photovoltaic power industry. The LX-F100 temperature measurement range covers -20 ℃ to 350 ℃, fully covering the temperature measurement requirements of photovoltaic modules, cables, distribution boxes, and inverters. The temperature measurement accuracy is ± 2 ℃, and it has multi-mode temperature measurement functions such as center point temperature measurement, regional highest temperature, regional lowest temperature, and temperature difference comparison. When scanning the component array, it can select the entire photovoltaic array with one click, automatically mark the highest hotspot in the area, and quickly lock the hot spot faulty components. The device is equipped with a photovoltaic specific temperature measurement algorithm, which optimizes color thresholds for three high-frequency faults: hot spots on battery cells, diode failure, and overheating of junction boxes. High temperature areas are marked with prominent red and orange colors, while normal temperature ranges are distinguished by cool tones. Operation and maintenance personnel can identify abnormal heat sources at a glance; At the same time, it supports custom temperature alarm thresholds, and automatically provides sound and light reminders when the set temperature is exceeded during detection, avoiding manual omission of high temperature hazards.

The battery life and data management are fully adapted to all day outdoor inspection scenarios. The body is equipped with high-density fast charging lithium batteries, which can continuously and uninterruptedly image and measure temperature for 8 hours on a single full charge, meeting the requirements of large-scale power station inspections throughout the day; Equipped with a Type-C universal fast charging interface, both power banks and car chargers can quickly replenish energy, ensuring worry free range in outdoor scenarios without mains power. The body comes with 32GB local storage, which can store tens of thousands of infrared temperature measurement images. Each photo automatically records the shooting time, temperature value, and highest temperature point data. It supports continuous video recording and fully retains the temperature image of the fault site; The device is equipped with wireless Bluetooth transmission function, and once the shooting is completed, it will be synchronized to the LAILX operation and maintenance APP on the mobile phone. It supports image annotation, text annotation of fault types, and one click generation of temperature measurement inspection reports. The reports automatically summarize the heat hazard points of the entire station, classify and count the number of hot spots, line overheating, and equipment high temperature faults, and provide data basis for operation and maintenance scheduling and spare parts procurement, simplifying the tedious process of traditional paper records and later organizing ledgers.

The operation logic is extremely easy to use, and the whole machine is equipped with a 3.5-inch high brightness outdoor touch display screen, which is visible under strong light without reflection. It is matched with quick physical buttons on the side, and can complete all operations such as taking photos, recording, temperature measurement mode switching, and color code adjustment with one hand. It has two preset imaging modes for photovoltaic and power, and can switch photovoltaic specific parameters with one click when turning on, without the need to manually adjust temperature measurement range and color contrast. Zero basic operation and maintenance personnel can proficiently use it in a short time. The device is equipped with multiple practical auxiliary functions, including laser positioning indication, isotherm analysis, temperature difference calculation, image scaling and enlargement. When scanning the mountain photovoltaic array from a distance, the enlarged image can clearly view the temperature distribution of individual components. Remote non-contact temperature measurement does not require climbing close to live equipment, avoiding the safety risks of electric shock and falling from a high altitude from the source.

Since the LX-F100 was launched on the market, it has been widely applied in distributed industrial and commercial photovoltaics, large-scale ground photovoltaic power stations, and household photovoltaic clusters. Many operation and maintenance enterprises have reported using this handheld thermal imager to conduct monthly site inspections. A single person can complete a full area temperature scan of a megawatt level photovoltaic array in a single day, and the detection rate of thermal spots and line virtual connection heating hazards has increased by 90%, eliminating multiple potential fire risks in advance and significantly reducing the losses of power station shutdown and maintenance. In addition to photovoltaic operation and maintenance, the equipment can also be compatible with temperature measurement in distribution rooms, charging stations, and industrial electrical lines. One machine is versatile, improving the utilization rate of operation and maintenance tools and reducing the procurement cost of enterprise equipment.

Suzhou LAILX continues to deeply cultivate the field of photovoltaic operation and maintenance testing equipment. The LX-F100 handheld infrared thermal imaging instrument accurately targets industry pain points such as low efficiency, high leakage rate, and bulky equipment in outdoor temperature measurement and inspection. With multiple advantages such as lightweight body, high-definition dual light imaging, high-precision global temperature measurement, and intelligent data management, it has built a comprehensive thermal hazard investigation system for photovoltaic power plants. The enterprise will continue to optimize the infrared image AI recognition algorithm, upgrade the automatic fault classification and labeling function, continuously improve the entire series of photovoltaic operation and maintenance detection equipment matrix, and use domestically produced cost-effective professional instruments to assist in the safe, stable, and long-term operation of new energy power plants.

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