Bryann 0 Posted July 13, 2007 I work for a surveillance company in South Africa, and we have developed a surveillance program that is taking our market by storm! H.264 compression Unvarying 25 frames per second (PAL) on every channel at high resolution on preview and playback! Multi camera playback Remote view over LAN/WAN Audio capability for every channel POS overlay Our software does not sacrifice resolution for frame-speed, or vise-versa. Always real-time, always high resolution! If you would like more information, feel free to email me. Share this post Link to post Share on other sites
Daryl733 0 Posted July 30, 2007 What's the bandwidth needed ? I've seen quite a lot of system that promised realtime. Demo's good. but what's not mention is the bandwidth needed. Customer almost always have to subscribe to high bandwidth plan. Normal DSL/Cable plan almost always fail to deliver "realtime". But then across highbandwidth plan, those that never promise realtime also seems to perform similarly, at a lower cost. Normal plan over here, upstream is only 128kbps - 256kbps. Can we do realtime for 16chs at that bandwidth ? Share this post Link to post Share on other sites
Bryann 0 Posted August 3, 2007 What's the bandwidth needed ?I've seen quite a lot of system that promised realtime. Demo's good. but what's not mention is the bandwidth needed. Customer almost always have to subscribe to high bandwidth plan. Normal DSL/Cable plan almost always fail to deliver "realtime". But then across highbandwidth plan, those that never promise realtime also seems to perform similarly, at a lower cost. Normal plan over here, upstream is only 128kbps - 256kbps. Can we do realtime for 16chs at that bandwidth ? Unfortunately, that is the case with digital CCTV right across the market. High resolutions chew away at bandwidth at an alarming rate. Our product does have a "bandwidth throttle" though, which allows you to alter the bit rate of the video being sent, so you still have a real-time video, at a reduced resolution, and at slightly lower bandwidth usage. This will let you adequately view one camera at a time , but 16 is a bit much 16-24 cameras over LAN is, however, a reality and we currently have existing installations on such an application. Share this post Link to post Share on other sites
Daryl733 0 Posted August 3, 2007 LAN's normally not a problem. I mean normally. Cause sometimes u got customers that doesn't understand IT at all, and think that you are trying to rip them off by asking them to get seperate switches for IP cameras in order not to congest the LAN with cameras traffic, or get giglan, or get better switches (those higher end one instead of those low end switches that doesn't give good throughput). If you try dumping everyting on a single switches on a LAN, you'll still face transmission prob. But most of the time, if they go IP, is coz they want to see over internet. Most layman customer ave very high expectation, expecting to see SMOOTH video. Especially when they go to some other showroom, which basically show them their LAN setup, or supposely stream from internet over a T1 upstream line, and expect us to do it at their normal broadband speed of 256kbps upstream line. Well.. kinda give up on these customers. Too high expectation without sufficient budgets. And when u implemented, and they don't see smooth video (they dun understand internet is shared bandwidth, and there are peaks and off peaks traffic), they threaten to withhold payments. Unfortunately, that is the case with digital CCTV right across the market. High resolutions chew away at bandwidth at an alarming rate. Our product does have a "bandwidth throttle" though, which allows you to alter the bit rate of the video being sent, so you still have a real-time video, at a reduced resolution, and at slightly lower bandwidth usage. This will let you adequately view one camera at a time , but 16 is a bit much 16-24 cameras over LAN is, however, a reality and we currently have existing installations on such an application. Share this post Link to post Share on other sites
