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Traditional dome problems than most criticized poor adaptation to the environment, the vast majority of high-speed dome camera with transparent dome design, this curved dome dirty easily, maintainability, and without humic acid salt intrusion. Dome cameras used on people know that in six months the longest outdoor applications, due to the dome cover gray so that the imaging effect will be discounted, and often because of rain dust fouling, the movement focused on the dome will automatically dirt , thus affecting the normal application dome. Since the problem is caused by a transparent dome into the sky, that solve this problem, the natural need to change the traditional program transparent dome. There are already manufacturer of innovative high-definition flat with a small range of optical glass surface instead of a large area of the dome, while reducing the Dome easy to dirty difficult maintenance problems, on the one hand but also solve the surfaces affected by HD 1080P image telephoto distortion problem, and through a special coating material selection and design, can achieve high light transmittance and hate hate dust and water designed for high speed dome camera for outdoor applications form a good solution. Another disadvantage is that the performance of ultra-low-light, fill light at night is no perimeter of the park and township roads, box cameras can be used with external programs fill light, but the dome can be rotated 360 degrees advantage turned into ornaments Since almost no reasonable distances fill light 360 degree programs, therefore, involves the needs of ultra-low light in the evening, generally do not use the dome. In recent years, many domestic manufacturers gradually developed a variety of infrared light dome, to a certain extent, alleviate the problem, but also makes peace counties, towns, parks demand dome perimeter was a blowout situation. But a rational point of view, on the one hand, due to the integrated infrared heat lamp beads, lifetime limit, currently able to truly follow the fill light, fill light distance up to 100 meters above the dome is not much; hand, HD movement to the present, the most common 1080P/20 optical zoom movement, the longest focal length is generally about 100mm, the focal length of the movement during the day and can see the license plate 200 meters, to distinguish between the basic characteristics of people, can 400 m contour detection items, but 100 meters up from the integrated infrared light to detect movement far less than the current distance, not to mention, the movement is still developing, 1080P 30 times the movement has also been a commercial, it is possible to really see night and day as far as the dome, still need further development in the long-distance high reliability fill light program. From the perspective of the ball machine application point of view, the vast majority of applications fabled dome. We all know that the biggest advantage is the 360-degree dome camera high-speed rotation, while the dome is not equivalent to a rotation of the actual fixed cameras, dome cameras are often therefore suitable for cruising or track scene. But in fact many cities blindly pursue the dome, but the dome of the application but did not achieve the appropriate configuration, in most monitoring points, the dome has been fixed in one direction, so often we look at the news when a security incident to occur, due to the dome shine in the other direction, the results clearly on the dome design coverage, but does not provide any data monitoring point for judging the event. So how to make the actual value of the dome, it must be a new proposition in the future development of the dome. Networking and intelligent combination of trends, so that when the dome rotate rotation, when the zoom magnification, when the snap snap, so the dome independent thinking is not difficult, but the difficulty is how to reduce the ball false alarm rate of the camera, the false negative rate, is the dome camera popularize premise. Either analog or HD network dome camera dome camera movement are undoubtedly the key imaging. Movement itself contains the lens, sensor, ISP, electromechanical control circuits, due to the application of special, its manufacturing process is much higher than an IP box cameras. Early for a long time, the movement of the core technology in the hands of Japanese and Korean manufacturers, but with the demand for high speed dome camera rapid expansion of imported brands of HD showed some movement bottleneck: First, the cost of imported movement disadvantages makes imported dome camera movement there are some problems in business competitiveness, followed by the movement of imported goods due to the longer replacement cycle, when the HD box camera ultra low light, wide dynamic technology has been commercially successful, the mainstream import movement or the use of the previous generation of programs, leading to the dome on the image performance was behind the box camera. In recent years, many domestic manufacturers have started independent research dome camera movement, especially in high-definition movement, since 2012 CPSE, mainstream manufacturers have achieved self-developed alternative to the Japanese movement movement, on the one hand makes the ball greatly reduce the cost of the camera, the other on the color illumination, through the fog, glare suppression characteristics also formed an advantage. For domestic security vendors, how to make the product in the future stability of self-development movement, providing high-quality programs focusing on speed, is the focus of the various efforts.
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dome camera, speed dome camera, network monitoring,
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