DVR and DVS

Block diagram (SBD) for a Digital Video Recorder and Digital Video Server for HD video surveillance featuring video decoders and audio codecs which allows for storage of data, and enables remote access via TCP/IP networks.

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Design Considerations

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A digital video recorder (DVR) and digital video server (DVS) are appliances used in video surveillance. These appliances take the analog video signals from multiple analog surveillance cameras and digitize them. A processing engine encodes the video streams in digital formats such as H.264, motion JPEG, MPEG-4 or proprietary codecs to allow for data storage or transmission.

While the DVR is designed to store and view this video stream locally, the DVS sends the encoded video to the larger security network using the TCP/IP protocol. Higher performance systems also have video content analysis (VCA) capabilities allowing for the automatic detection of motion, crossing of virtual fences, etc.

DVRs and DVSs are used to upgrade existing security systems, which are based on analog surveillance cameras. Replacing tape-based VCRs, the DVR/DVS automates the storage of surveillance data and enables remote access to surveillance installations via TCP/IP networks. DVRs/DVSs typically have 4-, 8- or 16-input channels. With further integration, the channel count will increase to 32, 64 and beyond.

With the advent of IP cameras, systems that accept both analog and digital formats are advantageous as the installed analog camera market base still dominates. For this reason, Hybrid DVRs are available today. These appliances are versatile video recording devices that also must have the capability to perform storage and VCA functions.

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Application Notes (11)

Title Abstract Type Size (KB) Date Views
HTM 8 KB 10 Sep 2012 1250
HTM 8 KB 06 Oct 2011 2071
HTM 8 KB 01 Aug 2011 1070
HTM 8 KB 18 May 2011 907
HTM 8 KB 01 Mar 2011 782
HTM 9 KB 29 Apr 2010 851
HTM 8 KB 11 Apr 2010 731
HTM 9 KB 09 Dec 2009 561
HTM 8 KB 25 Nov 2009 1050
HTM 9 KB 10 Sep 2009 813
HTM 9 KB 17 Jul 2008 2455

User Guides (3)

Title Abstract Type Size (KB) Date Views
htm 8 KB 04 Aug 2010 754
htm 8 KB 16 Nov 2009 640
htm 8 KB 07 Dec 2007 536
    

Reference Designs

Description Part Number Company Tool Type
DM365 Digital Video Recorder Reference Design DM365DVR-UD1 Texas Instruments Reference Designs

Selection and Solution Guides

Selection Guides (3)

Title Abstract Type Size (KB) Date Views
PDF 9.51 MB 01 May 2014 58145
PDF 2.55 MB 10 Oct 2013 6073
PDF 4.16 MB 23 Jul 2009 6140

Solution Guides (1)

Title Abstract Type Size (KB) Date Views
PDF 5.43 MB 15 Dec 2011 4782

Tools and Software

Name Part # Company Software/Tool Type
Code Composer Studio (CCS) Integrated Development Environment (IDE) CCSTUDIO Texas Instruments SW Development Tools, IDEs, Compilers
TMSDM365 Digital Video Evaluation Module TMDXEVM365 Texas Instruments Development Kits

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White Papers (4)

Title Abstract Type Size (MB) Date Views
PDF 2.01 MB 30 May 2012 2044
PDF 2.5 MB 11 Apr 2012 1097
PDF 94 KB 16 Jun 2011 529
PDF 150 KB 28 Aug 2009 1274

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DaVinci 26 Jun 2013 7:12 PM
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