2010 has already passed. According to the practice of previous years, this year's security industry has focused on product and technology development in the security industry. We hope that we can provide you with some of the latest trends through our observations. Although the current networked application has caused a wave of upsurges, the analog surveillance market can not be ignored, and all manufacturers continue to maintain high product development efforts.
Faced with the upsurge of networked surveillance product development triggered by high-definition video, the traditional analog surveillance equipment seems to be declining, but this is not the case. As far as the overall application status is concerned, about 90% of the systems still use analog products. The analog monitoring system is still an important market. Its acceleration may be slowing, but it will always maintain a certain amount of growth. On the whole, it continues to develop in the direction of improving image quality and adapting to various industrial application environments.
Millions of high-definition and fog-free lenses have emerged in response to the rapid development of the HD process, which also imposes higher requirements on the lens products. Not only does it require high resolution, but it also requires high color difference. For this reason, whether it is the corresponding 650-line analog high-definition camera, or to deal with megapixel IP surveillance cameras, different manufacturers have introduced their own high-definition lens products.
Aiming at the problem that has always plagued the imaging quality of IP network cameras - how to improve the imaging quality in the processing of near-infrared light fields, for this reason, in the Dragon megapixel IR compatible manual zoom lens products, based on Tamron-based aspherical lenses and high The quality of the coating technology, the product also uses the latest optical design, to achieve a global correction of aberrations, making it possible to obtain sharp imaging results in the near-infrared light area, from the visible light to the near-infrared area can maintain a corresponding high of 3 million pixels Performance, thus achieving all-weather HD1080P surveillance quality requirements.
In addition, some manufacturers of outdoor telephoto lens in the monitoring distance, anti-shake performance, as well as the ability to fog have made further improvements. In order to realize the lens's function of penetrating fog, generally, two methods of optical compensation and mechanical compensation of the difference between visible light and infrared light imaging surface can be adopted to ensure that all the available light is accurately focused on the imaging surface. Such as Fujinon's most representative fog lens D32 and D60 series products, which make full use of special optical lenses, EBC broadband multi-layer coating technology that greatly enhances luminous flux, and more than ten lens groups that support the lens body are accurately and smoothly Mobile precision machining technology, as well as software technology that can accurately and arbitrarily control the motor, meets a wide range of applications such as night vision, fogging, and image stabilization.
High-definition surveillance is the main theme of the entire security industry, and in the analog world, with the rapid advancement of technology, the number of camera line indicators is also rising, 480TVL, 540TVL (color mode) is now close to 650TVL (color mode), 700TVL (Black and white mode) limit value. For example, the new SSC-N21 hemisphere recently introduced by Sony uses a high-sensitivity 1/3-inch Executable HADCCDII with a horizontal resolution of 650 TVL to obtain sharp and detailed images. At the same time, ** machine SSC-G113/8 also uses the ExamHADCCDII high-sensitivity CCD, can output 650TVL high-definition images, with electronic color to black features and ATRLite wide dynamic capabilities, can be applied in a variety of environments.
In addition, Panasonic's WV-CP500 series 650-line ultra-high-definition camera developed with the fifth-generation super-wide dynamic technology incorporates an automatic dark area compensation technology to provide clearer images in backlight conditions, while also carrying i-VMD smart mobile. Object detection technology enables packet loss/packet detection alarms, moving object direction detection alarms, spray detection alarms, focus offset detection alarms, and more.
In Korean products, LG Electronics adopts the latest self-developed third-generation XDI-II smart chip to process high-quality images from 520/610K sensors to ensure high resolution of 650TV lines. Key improvements include analog images. The WDR range extends from 60dB to 68dB, and ACE (Adaptive Contrast Enhancement) enhances WDR performance, while the new 3D-DNR (Digital Noise Reduction) engine reduces the accumulation of noise and similar ghosting, making it ideal for low Lighting monitoring.
However, it must be acknowledged that high-definition surveillance is a system project, not just limited to the realization of front-end high-definition imaging, for the current analog monitor market is still dominated, to build a complete set of high-definition systems still have some problems Solutions, such as high-definition transmission, high-definition display, etc., all need to be supported by devices supporting the front-end HD camera.
PTZ camera is colorful with the continuous development of monitoring applications, applicable to all kinds of outdoor integrated PTZ cameras in nighttime environments, harsh conditions, long-distance, large-scale real-time monitoring applications (such as: forest, coastal defense, railway, etc.) Type has obvious market demand. In addition to the general vertical models, in recent years, there are more and more vehicle-mounted PTZ models installed on the top of vehicles. However, it is not an easy task to truly adapt to such a complex environment. In order to prevent outdoor moisture, rain, acid and alkali corrosion of the product itself, the equipment should have a high degree of internal tightness, can resist violent impact, corrosion resistance, good weather resistance (the built-in heating element inside the shield), protection level At least to IP66; Second, in order to ensure accurate positioning and tracking, as well as reduce the need for regular maintenance, the performance of the camera's PTZ is also required to be more accurate, sturdy, and higher stability.
What's more, in order to improve the monitoring effect at night, some advanced night-vision technology has been introduced into this field. For example, a series of integrated intelligent high-speed PTZ cameras developed by Changzhou Mingjing Electronics Co., Ltd. includes infrared technology (one side is an infrared LED lamp and one side is a camera) and laser synchronization (a laser generator on one side, And with intelligent follow-up function), as well as thermal imaging technology (one side is an infrared imager, one side is a camera, and the two can be video switching), etc., to meet different application needs.
In order to achieve better overall performance, some manufacturers strive for the selection of materials and design of this type of camera, and strive to provide users with high-quality products. For example, VIEDOTEC has introduced a high-speed integrated camera positioning system that combines a camera, a high-speed head and a decoder, and can be used with a thermal imager, and uses glass to enhance the infrared transmittance; or plug-in infrared LED lighting to Improve the night picture quality, while also providing an IP network-based integrated positioning system, which greatly enriches the types of outdoor surveillance camera products.
However, in general, analog monitoring technology is more mature in practical applications, and it is bound to maintain its proper place. As far as the future development is concerned, networked applications will certainly be the trend of the times. While the analog surveillance products are constantly improving technical indicators, the biggest problem to be faced is how to face the future with a smooth transition to a networked system. This is also a current model. One of the main reasons for the emergence of hybrid systems.
