tory burch travel wallet Image storage DVR monitor

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calculation example: 8 CIF format video 24 hours a day for 30 days hard disk capacity required?
8 Road × 200M × 24 小时 × 30 days ÷ 1024M = 1125G (Note: 1G = 1024M)
CIF quality
Half-D1 quality
D. CIF quality
D1 quality general activities
25-200M / h
60-430 M / h
50-400 M / h
110-800 M / h complex / vigorous activity
50-250 M / h
150-680 M / h
150-680 M / h
190-900 M / h at night / low light
25-150 M / h
130-380 M / h
90-280 M / h
190-500 M / h

DVR large ones have a common road, 2, 4,asics kayano 15 women, 8, 9 Road, 12 Road and 16 Road. Maximum can be connected to eight 2000GB hard drive, with a total capacity of up to 1.6T (currently the largest market in the 1000GB hard drive or so), if the use of CIF resolution, usually every hard disk capacity 1 channel 180MB ~ 250MB / hour, usually value of 200MB / hour; if D1 resolution video required hard disk capacity per hour is 720MB ~ 1000MB / hour, usually in order to reduce the capacity of the hard disk can be in accordance with the 500MB / hour, 25fps frame rate less than smart set,tory burch flip flops clearance 坎昆会议：全球气候, stream should be less,nike air 95! I believe we can calculate a full eight of the 16 500GB hard drive video recorder for how long?
hard drive takes time calculation: calculation of the normal picture quality, each hour 200M. For example, hard disk recorders 16, while recording a total of occupation under an hour drive 3.2G. Depending on the application site,床上什么样，就是什么人, dynamic video,christian louboutin ########s 猜猜我有多爱你,jordan heels, etc. can be used for video, thus ensuring an effective part of the video data are.
hard disk will automatically record over video footage circulating on the front cover. Available CD burner will require long-term preservation of video content carved in the disc.
some cases, to reduce the input drive can be set per way per hour 100M video quality, but the picture quality is not guaranteed. Recommended only in less demanding circumstances.
various resolutions of what kind of stream can get better image quality
DS-8000HC Embedded Network DVR supports multiple resolutions, we generally use the CIF , DCIF, D1 three. In different video resolution, we recommend that users set the mode using the following code stream
CIF: 512Kbps, variable bit rate setting in the image quality select
DCIF: 768Kbps, variable bit rate setting in the image quality select Rate the image quality settings select the stream size × 3600 ÷ 8 ÷ 1024 = MB / hour DVR hard disk capacity calculation
the following formula:
hour video file size × DVR recording time × day × large ones need to preserve the number of days
example: 8 hard disk recorders, video and audio recording, set by 512Kbps stream video 12 hours a day timer,tory burch travel wallet, video data retention for 15 days, calculated as follows:
hour video file size = 512 × 3600 ÷ 8 ÷ 1024 = 225MB
DVR required Hard disk capacity = 225 × 8 × 12 × 15 = 324000MB ≈ 320GB
audio stream to a fixed 16kbps, share of capacity per hour is very small, can be ignored

take a variety of DVR hard disk space and video quality comparison chart


general engineering calculation: the amount of data per hour * 24 hours * days =? ? G
mainstream DVR currently uses two types of resolution: CIF and D1.