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In 2015, the National Development and Reform Commission and the National Energy Administration issued the *Guiding Opinions on Promoting the Development of Smart Grids*. Within just one year, smart grids in my country experienced rapid development. Against this backdrop, intelligent inspection—a key component of smart grid construction—also entered a period of flourishing growth.
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Optical Fog Penetration for Surveillance Standard visible light cannot penetrate clouds, fog, smoke, or dust, whereas near-infrared light is capable of passing through haze and particulate matter of certain densities. Optical fog penetration technology leverages the principle that near-infrared light can diffract around tiny particles to achieve accurate and rapid focusing. The technology relies primarily on the lens and optical filters, employing a physical approach...
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In terms of technical categories, night-vision surveillance technology can be classified into active infrared and passive infrared technologies. Consequently, night-vision surveillance products fall into two main categories: active night-vision products and passive night-vision products. Common examples of active night-vision products include standard infrared cameras and laser cameras, while passive night-vision products include low-light night-vision devices and infrared thermal imagers.
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Unlike ordinary PTZ cameras, high-altitude observation cameras are designed for precise, wide-area image monitoring from higher positions. They offer both wide-angle coverage and close-up shooting of specific targets. They can effectively capture details in large-scale, long-distance surveillance footage. In the event of emergencies such as traffic accidents, the location information of the event can be quickly obtained from the high-altitude observation camera.
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Laser night-vision technology has been available in China for nearly a decade. As a form of active infrared night-vision technology, it operates by optically diffusing a point-source laser beam to provide illumination at night; the wavelengths typically fall within the near-infrared range (808, 940, or 980 nm). The system utilizes a high-aperture night-vision lens to capture light reflected from the target for imaging, while a low-light CCD camera acquires and outputs the resulting images.
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We frequently encounter specifications citing theoretical transmission rates—such as 300 Mbps, 150 Mbps, or 100 Mbps—for devices like wireless bridges and COFDM equipment. While we all recognize these as units for measuring network data transmission speed, few people have likely stopped to consider how these theoretical rates are actually calculated. 因此，我们要秉承牛顿精神，懂得
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