One, the appearance of the interface of choice for most digital hard disk video recorder (DVR)selected industrial chassis as its shell, the appearance and screen printing to exquisite beauty, floppy drive and power switch with mechanical lock up styles have the certain help toreduce man-made fault. If you can open the machine cover, should pay attention to watch forwhat fan and power, as a special fan Pentium III CPU mean time between failures in more than 3 years, and the general fan MTBF depends on every day, digital hard disk this continuousboot video recorder (DVR) is a a hidden fault, in addition, the wiring way is reliable and convenient. In order to facilitate the operation, the interface should be finished, the main function can stick out a mile to reflect on the main interface, suggested that the choice to look professional, beautiful, intuitive operation interface.

Study two, function according to the main function is divided into the function of monitoring,video recording, alarm function, control function, network function, identity recognition function, work schedule function and power at the same time, work function, the following wereintroduced.

1, the effect of surveillance monitoring function is one of the host matrix and digital host the main function, the function of monitor is nothing but to see the full, see the scene of the scene,when necessary, there should be sound, mainly through articulation, screen real time display form to determine the degree and effectiveness of supervision. General images per secondmore than 17 frames when the naked eye is real-time image, and teller system and some special monitoring site needs to reach 25 frame images per second or more, usually to dosome hand quick action to observe this feature, such as quick count, clap, can also throughframe by frame playback view of two frame images the time interval between the video frames / sec, =1/ two images of the time interval, 25 frames / second corresponds to two images of thetime interval of 0.04 seconds. Display form in general there are 1, 4, 7, 9, 10, 16 imagesegmentation form, also can be cut to the full screen picture. The parameters of each roadbrightness, contrast, color saturation, etc. should be continuously adjustable, or in a multipicture because the light is not equal reason can not be good to watch, which is a digital hard disk video recorder (DVR) is better than the common image splitter place. Full screen display,can accurately reflect the quality, speed and quality of video card.