ee01003 0 Posted April 11, 2008 hi..i have some problems in calculating the storage needs in a cctv system. i know that the factors that i have to considered when calculating storage needs are: -number of cameras -number of hours per day, that the camera will be recording -how long the data must be stored - frame rate , compression, image quality and complexity for the bellow exemple : if i have 1 camera whit: resolution= 640 * 480 frames per second=25 period of storage= 8 hours compression = MJPEG (50) i know that i have to use this formula (FOR 1 CAMERA): required storage space=image size* frames per second * period of request my principal question is how i can calculating the image size? how resolution and compression influences the image size? can anybody help me? best regards Share this post Link to post Share on other sites
si_kungs 0 Posted April 16, 2008 please check the time recording table of the DVR. if you don't have it, you can have an actual test. connect one camera to the dvr and select you desired setting. record for at least 2 mins and note down the quality setting and fps setting, from there you can estimate the space the will be occupied by the video for a certain setting. Share this post Link to post Share on other sites
ee01003 0 Posted April 16, 2008 please check the time recording table of the DVR. if you don't have it, you can have an actual test. connect one camera to the dvr and select you desired setting. record for at least 2 mins and note down the quality setting and fps setting, from there you can estimate the space the will be occupied by the video for a certain setting. i don´t have the time recording table of the DVR. what you are saying is that is impossible to know the storage needs even if i knew the resolution,frame rate , compression mode(Mpeg4 or mjpeg), number of cameras, etc....unless i do a pratical test. so, when i need install a diferents cameras or DVR´s, whit a diferents resolutaion , i have to do new tests? thanks for your help, i am a newbie in cctv, and all information are welcome. Share this post Link to post Share on other sites
si_kungs 0 Posted April 16, 2008 what dvr are you using? Share this post Link to post Share on other sites
ee01003 0 Posted April 17, 2008 what dvr are you using? i'm going use the samsung SHR-2040 Share this post Link to post Share on other sites
si_kungs 0 Posted April 17, 2008 check this link http://www.samsung-security.com/Portals/0/UserManuals/SHR-2040-2041-2042-ENG-F.pdf Share this post Link to post Share on other sites
si_kungs 0 Posted April 17, 2008 visit this site for samsung SHR-2040 storage calculator http://www.gviss.com/default.aspx?tabID=435 Share this post Link to post Share on other sites
