2013年5月14日星期二

HD IP Camera HD demand highlights

HD IP Camera HD demand highlights
2012 for the security industry is concerned, but also a year of rapid development, the modernization of the city's rapid economic development, building a harmonious society, security monitoring work on the various sectors of the city system put forward a number of new requirements and issues. The same time, the Green City project, the Olympics, the development of the security industry has laid a good foundation to promote the development of the technology industry. Video surveillance security industry occupies a very important position, time of rapid growth in the security market, also revealed a number of problems.
At present, the customer requirements for video surveillance products are constantly improved, such as more complete functional requirements, stable performance requirements more clearly and accurately. At the same time, in shopping malls, savings and other monitoring sites require to see a person's facial features? Roads and asked how to look at high-speed vehicle license? The hustle and bustle of the train station, stadiums, squares and other occasions, urged How can quickly and accurately find the target ... these are the problems to be solved of video surveillance products.
HD demand highlights
Throughout the video surveillance technology development and product market can be said to a pack and play times, there are a lot of R & D strength, the market share of the enterprise, and has launched many advanced products, such as the current video HD monitoring products on the people "eyes lit up" dual-stream, network storage, 16-channel full D1, the video surveillance products experienced digital network after two important stages of development, high-definition surveillance products become a new bright spot .
Recently, the industry "Let us see more clearly, perhaps this is a very urgent demand made many users in the use of digital video surveillance products. Authority of the U.S. IT market research firm MultiMediaIntelligence President Mark? Kirstein referred to the four technical factors to promote the development of video surveillance equipment market: millions of HD IP Camera, high-performance codec, powerful analytical techniques, and to facilitate migration to IP / networked video surveillance from closed-circuit television (CCTV) All the underlying technology. From his words, we can see that in the four technical factors megapixels camera, high-performance codecs and IP network technology, with high-definition products, represents a high-definition products acquisition, encoding and decoding, network transmission direction of development.
Two megapixels camera features and analysis
In recent years, video surveillance equipment has gradually stepped into the HD from megapixels to traditional analog control of megapixels is very difficult, and network video surveillance HD becomes possible. Thanks to H.264 compression standard, in the case of an equivalent amount of data with respect to the MPEG4 standard, the H.264 compression capacity after only MPEG4 compression of 20%, this means that the same storage capacity H.264 storage content MPEG4 is 5 times, which can greatly reduce the cost of storage of the user, and the transmission quality of the image does not change. The more important is the H.264 is the international standard, iPhone, television and other video devices are based on the H.264 standard, so that compatibility is good, and other devices which can be used to watch the surveillance video. Below, we mainly with the Jingyang technology products to talk about the millions of HD IP Camera features and application.
1, the main characteristics and application
(1) the use of high-end megapixels CCD;
(2) Effective pixels: 1280 (H) x 960 (V);
(3) Framerate: 1280 (H) x 960 (V) under 22.5 frames / sec,
1280 (H) x 720 (V) 25 frames / sec;
(4) Exposure time 1/50 sec to 1/50K seconds can be set;
(5) camera operating parameters programmable settings and has the power and memory function;
(6) color / monochrome mode automatically switches;
(7) double trigger gun capture function, snapping parameters programmable (the number of frames can be set);
(8) network diagnostic functions.
2, Feature
(1) Speed ​​Enforcement
The arrival of the first trigger signal, the system emptied ready to capture the arrival of the second trigger signal (capture signal), the driving speed of the system, according to the settings can be continuous capture or capture according to the specified speed, the start fill light equipment, when the vehicle reaches capture the best area to obtain the time interval between pictures, the number of pictures and pictures can be set to complete the picture capture, in turn returns a JPEG or BMP file superposition speed information.
(2) Continuous capture
Host can be set to 1.3 million pixel high-definition IP Camera continuous capture function, you can set the capture time and the number of frames, in order to ensure that the output continuous output high frame rate of the compressed image.
(3) saved locally
The system design capacity (optional) demand-board memory, support offline work. Network abort, to temporarily store data locally, such as the network is restored normal, and then back to the server.
(4) self-monitoring function
In order to facilitate the maintenance and reduce the workload of field maintenance, system design powerful system self-test function, such as the common fault alarm, ambient temperature detection, front-end failure (loss of image).
(5) "heartbeat packet-aware
Host probe packets issued by each device, the response packet receiving apparatus to sense the presence or the working state of the device.
(6) Image Compression
Trigger to capture the images can be JPEG or BMP coding, coding quality slider flexible control.
(7) Gain control
Manual gain control (MGC): 0 to 30 dB programmable settings.
Automatic gain control (AGC)
(8) power recovery
The system can be saved at any time the current status of work in the case of a power-camcorder automatically restore the former state, which can greatly reduce the back-end intervention and maintenance workload.
(9) High-definition the VGA digital image output
For the convenience of on-site commissioning and user product image quality assessment, the camera design the direct VGA video output interface, can be directly viewed by an ordinary VGA monitor to the real-time image.
Million-pixel high-definition IP Camera with real-time automatic license plate recognition system, triggered by video or trigger coil, high-speed movement of vehicles and automatically capture accurate real-time identification number of the vehicle and license plate color, and can also identify the license plate in the same screen. It is widely used in the field of urban transport, road transport, public security and traffic police across the country.
From:http://www.vstarcam.com/channel/HD-IP-Camera-HD-demand-highlights-114.html

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