4G HD wireless video surveillance camera network from 2009 has been the rapid rise of high-definition cameras, network monitoring to maintain a rapid growth trend, in 2014 the market in terms of security, IP surveillance cameras still maintained an annual growth rate of 30% growth rate, 4G wireless camera The development is gradually stabilizing, but also shows the next year is still a major trend in high-definition monitor, and towards a more market-oriented direction HD. Although with the commercialization of 4G, can solve the bandwidth problem, but it needs to be universal 4G is a period of some time; appear H.265 technology, can effectively reduce the bandwidth, the market also appeared in camera of the technology, although future good prospects, but still facing the conditions and limitations of external support and technology popularization of time. H.265, also known as HEVC (HighEfficientVideoCoding, HEVC), International Organization for Standardization is the next-generation video and ITU organizations are jointly developing compression standard, mainly for high-definition digital TV and video codec system applications, from SQICF (128X96 ) to 4K Ultra HD (7680 × 4320) different levels of video applications. H.265 coding efficiency target is increased by 50% compared to H.264, the image quality that is in the same condition, the target rate down to 50% H.264's. ? It is also worth noting that now occupy the low-end video surveillance market Hass also occur during the year or next year based on the H.265 compression chips. Stage network video monitoring business mainly concentrated in the government, education, road transport, public security, finance and banking, energy, power, petrochemical and other industrial users, this development has started in the SMB / home users on. In 2015, the security industry will usher in a new round of development opportunities. We expect that in 2015 the security industry can achieve even greater development. We also wish that all security companies engaged in security work and hard worker in 2015 can be a good harvest, to create a new glory. Classification wireless surveillance cameras camera market now generally divided into WIFI wireless network cameras, wired IP cameras, 3G and 4G wireless network cameras. WIFI wireless network cameras and wireless routers with the work required, can require a wireless router on the Internet. The advantage of using WIFI wireless network camera: no wiring, installation and increasing the number of cameras are more convenient, low cost Internet. But the distance to the wireless router network cameras general requirements in the range of 30 to 100 meters, if you exceed this range you need to use a dedicated antenna or install a wireless router nearby. Wired network camera directly plugged into the network port or router with Internet access will be able to work properly. The advantage of using a wired network camera: using extremely simple, does not require any configuration can be used, not afraid of signal interference, reliable, relatively low cost Internet. Disadvantages wiring was required. 3G and 4G wireless network camera only need to insert the corresponding phone card, easy to use without any additional configuration can be used, as long as there is a place to use the mobile phone network. Wireless remote monitoring camera surveillance camera is a semiconductor imaging device with high sensitivity, anti-glare, distortion, small size, long life, anti-vibration and so on. With the progress of society, the use of surveillance cameras range more widely. Should be based on surveillance cameras monitored the distance to the target, to select the fixed focus lens focal length. Surveillance camera focal length is the distance between the lens and the sensor. Magnification lens is approximately equal to the ratio of the focal length and object distance. In other words, with the increase in surveillance camera focal length and magnification increases, the close-range pull away, details clearer vision, on the contrary, was established. In order to observe the range of surveillance cameras is maximized, surveillance cameras must be able to rotate, the method is to install and use PTZ surveillance cameras fixed to rotate. In addition, it must be able to realize the power of the zoom, zoom. This requires surveillance cameras inside the camera head can be quickly and accurately automatic zoom. It has also become a surveillance camera to determine a standard of good and bad.