With the rapid development of high-definition surveillance, IP high-speed high-speed ball gradually emerged, and more and more users are concerned about it. On the one hand, compared with the traditional high-speed ball, the image clarity of the IP high-speed high-speed ball has a qualitative leap, and it can present more abundant picture details. In the same physical resolution, the monitoring range of the IP high-speed high-speed ball is far greater. In the traditional high-speed ball; on the other hand, compared with the IP high-definition gun, hemisphere, IP high-speed high-speed ball has unparalleled advantages in handling, adaptability. Therefore, the market prospect of IP high-speed high-speed ball will be more extensive.
IP network monitoring market development is popular
With the continuous development of the video surveillance market, the most important market for network video surveillance is concentrated in several major industries such as safe cities and transportation. The network surveillance cameras also gradually transitioned from "standard definition" to "high definition", and the proportion of network standard definition gradually decreased. The demand for high-definition network surveillance cameras is high in some economically more developed regions. Network monitoring has also become the primary choice in many projects. In some network monitoring deployment areas, an average of about two surveillance sites will have a high-definition network surveillance camera; some personnel must enter and access frequent areas and must install network surveillance cameras. High-definition network surveillance cameras are constantly improving in the security market. Showing advantages has become one of the first choices in some industry applications. It is understood that in the overall slowdown of the security surveillance market, the market size of the network camera in 2012 is 22% higher than the market size of the network camera in 2011. The market size of the network camera is expected to be approximately RMB 2.696 billion, accounting for the overall The market size of the camera is 23.81%, of which HD network cameras are about 60% of the network camera market. So why are HD network surveillance cameras so popular?
In the area of ​​intelligent traffic monitoring, HDTV monitoring technology was introduced earlier to resolve the problem of sharpness of license plate captures. For example, in addition to the recognition of human faces, the 2 million-pixel “electronic police†system put into operation in Shanghai can accurately identify the specific characteristics of the vehicle's number plate, color, speed, model, and vehicle length. The 5-megapixel electronic police system under construction is mainly used to capture illegal red-light vehicles. It can record each vehicle passing through the monitoring point, capture a high-resolution picture and save it together with the time and place, and compare the vehicles. And data analysis provides a reliable basis. At the same time, the Shenyang Municipal Public Security Bureau has stipulated that from 2010, all applications for parking lots must be installed with high-definition television monitoring equipment; at the same time, the existing parking lots should be immediately organized to install high-definition television monitoring equipment. It can be said that intelligent transportation, non-high-definition can not! â€
The pursuit of high-definition products, low bandwidth
The first is sharpness. At present, the image clarity of IP high-speed domes is mostly 720p (corresponding to 1 million pixels), and some manufacturers have also introduced 1080p products (corresponding to 2 million pixels). Next, according to different monitoring application requirements, IP high-speed high-speed ball will also have to develop a higher definition, such as 3 million, 5 million pixels. Of course, there are many technical problems that need to be resolved as the resolution increases. For example, how the PTZ adapts to high definition is one of the difficulties. Former SD high-speed ball has a small amount of data and the process requirements for the slip ring are not very high; however, in the HD high-speed ball, the amount of data is very large and the corresponding pairs of slides The process requirements of the ring are also very high, otherwise it is difficult to guarantee the quality of video information delivery. The higher the definition, the higher the requirement.
Followed by bandwidth, IP high-speed high-speed ball based on the IP network to transmit video information, usually the clearer the image, the greater the network transmission bandwidth it occupies, the higher the corresponding video storage space requirements. For example, using the previous H.264 video coding technology, the bandwidth of 720p/1080p HD is generally 4Mbps to 6Mbps or more, and the cost is very high regardless of network transmission or storage space. Therefore, how to improve the image quality while reducing the bandwidth consumption is the top priority for IP high-speed dome manufacturers to consider. At present, some manufacturers have adopted new coding techniques to gradually improve this problem, which is typically the H.264 HighProfile technology. As an advanced video coding standard, H.264 defines four different categories: BaselineProfile, ExtendedProfile, MainProfile, and HighProfile. Of these four categories, the main ones used in the past were Baseline Profile and Main Profile, and High Profile was the highest-order category. H.264HighProfile can greatly reduce the coding rate (generally, can reduce 30% -50%) without reducing the image quality, thereby reducing the transmission bandwidth and storage space, thereby reducing the cost.
Standardization promotes product popularization
The biggest advantage of IP surveillance products lies in the popularization of networks and the customization of application protocols. However, since all manufacturers are self-contained, most IP cameras, NVRs, and monitoring platforms on the market cannot be compatible with each other. To this end, in May 2008, Axis, Bosch and Sony announced that they will jointly establish an international open network video product standard network interface development forum, named ONVIF (Open Network Video Interface Forum), and Open and industry standards are jointly formulated on the basis of openness and openness. From this IP surveillance product began to enter the era of standardization.
The agreement stipulates the contents of device discovery, real-time audio and video, camera PTZ control, video control, video analysis, and so on, laying the technical foundation for the interconnection of IP high-speed high-speed ball. The above three major technological breakthroughs have cleared the technical obstacles for the manufacture, application and promotion of IP high-speed high-speed balls, which has enabled IP high-speed high-speed balls to quickly replace IP-standard high-speed balls and become the mainstream product of IP high-speed balls.
IP HD Camera has unlimited potential for future development
With the continuous expansion of IP high-definition camera application areas and market demands, users continue to improve the quality and function of the picture, IP high-definition cameras will gradually evolve from a simple security monitoring, to a variety of functions, a variety of operations, and more A variety of management and other needs and one device, specifically, IP high-definition camera in the following aspects will have innovation and application.
1, IP high-definition video camera and Internet of things combination
With the successful application of the Internet of Things's radio frequency technology (RFID), seamless integration with high-definition video can be achieved in the future to bring about good practical applications. The data transmitted from the radio frequency can be received through the COM interface of the IP high-definition camera, and the combination of the image and the radio frequency can be achieved. For example, this technology can replace fixed punching and illegal person identification and thus help to improve many of the more tedious tasks in practice, reflecting the value of high intelligence and high technology.
2, IP high-definition camera and alarm equipment linkage
The alarm (ALARMI/O) interface on the IP HD IP camera can handle the switching level. After the IP HD camcorder receives this data, it can encode it and send it to the TCP/IP network, through the application software. The alarm signal performs various linkage response settings such as sound emission, light alarm, and alarm recording.
3. Combination of IP HD Cameras and Mobile Devices
With the popularization of 3G technology, and each IP high-definition camera has its own independent IP address, it can directly connect with mobile devices through a 3G network, transmit high-definition images in real time, and realize the transmission of wireless high-definition video. You can also configure the built-in email, FTP, and other clients in the IP HD camera. When you can access the Internet, the IP HD camera device can also send images or videos captured by the alarm trigger to the mobile device through Email, FTP, or other means. . It can also be connected via a COM port to a device that can connect to a SIM card, and can be sent to a designated mobile phone terminal using a short message or a multimedia message. In this way, real-time and intelligent monitoring can be achieved while using only a small amount of bandwidth and cost.
4, cut into the IP high-definition camera from the intelligent aspect
Because the IP HD camcorder front end is equipped with an operating system, all the smart algorithms can be attached to the front end. The intelligent algorithm can directly process the original image information output from the chip, and based on the original image, do some appropriate applications suitable for the feature occasion. For example, you can embed the entrance and exit statistics function. This function can automatically analyze and count the number of people or objects passing through important entrances or designated areas by analyzing the images monitored by the camera. And in the era of low carbon, the combination of smart algorithms and energy-saving environmental protection opens up another huge market. In party and government agencies, schools, enterprises, and large home environments, intelligent video analysis technology can also be used to eliminate huge energy waste and safety hazards, such as automatically turning off unnecessary lights or turning on lights for people working or adjusting the intensity of lights as needed. Wait.