Six issues that HD IPC needs to solve urgently

â—‡ Network performance needs to be optimized. The advantage of network cameras is their flexible remote monitoring, which expands the scope of application of image surveillance and strengthens the role of video images in remote management and video data sharing. However, its shortcomings are also very obvious. In this survey, when it comes to the problems existing in current network cameras, there are many problems that the application end feedback: coding performance, network bandwidth, system compatibility, stability, and network delay. Hours, night monitoring performance and other aspects. On the one hand, the high definition improves the quality of the monitoring picture, and at the same time it also puts forward higher requirements on the bandwidth environment. Therefore, the IP monitoring and high-definition low bitstream has become another direction for manufacturers to develop.

â—‡The application requirements are at the end of the process In order to more objectively understand the specific factors that the current contractor pays attention to in the procurement and application of network cameras, the survey investigates the quality of the screen, night-time monitoring, intelligent analysis, network transmission performance, stability, and compatibility. Conditions such as ease of use as an option, statistics found that image quality, stability, compatibility, network transmission capabilities are the main projects of concern to the project. Among them, the image quality option has reached a statistical value of 83.33%.

â—‡ Image quality is the first requirement The picture quality of IPC is mainly reflected in its pixel size. The survey found that 720P and 1080P network cameras with the highest HD resolution are most welcomed by the engineering companies, of which 1080P has a larger increase compared to previous years. More than 3 million pixels are not purchased, the main reason is that 1080P HD picture quality is sufficient in most applications, and higher pixel pressure on the bandwidth is also greater. According to feedback from most of the engineering companies, compared to the traditional CIF resolution webcam, one million HD IPCs are superior to standard definition in terms of display effect and fluency. From the display effect, HD supports both large-screen display and 16:9 wide-screen display, which can greatly enhance the user's viewing experience. In terms of fluency, HD supports higher frame rates. For example, both 720p and 1080i/1080p can support 60 frames per second or 60 fields per second, and its image fluency is twice as high as standard definition.

â—‡ Compatibility determines that system application monitoring systems move from closed to networked, and must open up standards to achieve the interconnection and interoperability between devices and systems. In the Internet era, the development of open standards and the provision of security systems that provide users with flexibility and scalability have become the best choice for security vendors to compete in the local market and achieve globalization. In this regard, Huang Weiyi, product manager of Zhejiang Dahua Technology Co., Ltd., said that the IPC market capacity has grown rapidly. With the increase of users' demand for high-definition images, the continuous improvement of the domestic network environment, and the introduction of network video surveillance standards such as ONVIF/GB28181, the network of video surveillance has developed extremely rapidly.

â—‡ Day and night monitoring needs growth The security monitoring has been increasingly used in high-end private areas, and the application range of cameras has become more and more widespread. Many poor monitoring conditions and dimly-lit places also require the installation of versatile cameras, especially low-light cameras. Low-light cameras have also become the new darling of the surveillance market. In addition, network cameras equipped with infrared lights are also very popular and can be monitored normally without any light source. The surveyed engineering firm mentioned the use of several brightening technologies to illuminate high-definition network cameras, which are different from ordinary cameras in that they fade color images into black and white images under low illumination conditions. This product still displays color images under low illumination, regardless of It is a static picture or a dynamic picture that can show the advantages of strong sense of hierarchy, true color reproduction, less noise and no trailing phenomenon. The improvement of low-light performance will accelerate the popularity of high-definition network cameras and accelerate the process of the era of high-definition surveillance.

The easy-to-use network cameras, which cannot be ignored, are more complex than the traditional plug-and-play analog cameras, whether they are installed or maintained. According to feedback from this survey, for most domestic engineering companies, integrators, and users, they are not very skilled in the use of network cameras. Therefore, in the development and design of network cameras, the characteristics of these people must be taken into consideration. Convenience and ease of use must be fully reflected, for example, support PoE power supply, local video output, as well as to facilitate local debugging and support wireless functions. In this regard, Hikvision's Cheng Hao emphasized the importance of the ABF function. In practical application debugging, from the perspective of installation and use, the ABF automatic back focus adjustment function can be used to fine-tune the focal length through IE/client remotely. Bolt installation and commissioning.