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digitalwitness last won the day on February 23 2013

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About digitalwitness

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  1. Ok, good luck with it. I am more interested in the technical too, why should be obvious but at some point also consider there is a science behind everything that happens before you get to what your interested in. Security and CCTV is about providing useful images in varied conditions, the how it's transmitted or network configured, etc, is secondary. I agree HD-SDi future is limited but not irrelevant.
  2. Then is not CCTV you wish to learn, why understand what WDR stands for but not interested in why or where it's used? Just trying to understand what exactly you are looking to learn, I'll explain the abbreviations very quickly if that's all your looking for. In theory, possibly but IP has limits mainly that are based on your existing infrastructure when it comes to upgrades but yes more leeway than HD-SDi but remember IP had been around in security for 15 years iirc. IMO HD-SDi Vs IP is a pointless argument, they have very little in common, if you need what IP can offer, you need IP! HD-SDi i
  3. I would ask this another way, on a installation where both IP and HD-SDi are viable options, why would you over complicate it with IP? While IP may not be a challenge for most, it does introduce more opportunity for failure with no real benefit (in such an install). Besides, the only thing HD-SDi is missing is volume, at the same volume, equivalent quality HD-SDi and IP cameras, the HD-SDi camera would be much cheaper, infact some have said a HD-SDi camera would be cheaper than an analog camera (negating the cost of the higher res sensor ofcourse) because a HD-SDi camera does not need a digit
  4. Others are much more experienced on the practical side, I'm more technical/theory orientated. What I mean by "solution to a problem", is a system proposal to secure your premises. First thing would be a site survey, to identify weak points, points of attack (so to speak), lighting, etc., then what type of camera is best suited to cover an area from which mounting point, etc. After this is done, is when you would look at your options such as transmission method (analog, IP, HD-SDi), recording, etc, while taking into consideration which functions you may like to have (phone access, storage times
  5. Tbh your starting at the wrong end, you're looking at how it's done when why its done is the more important question. Believe me, understand the why and the answers to the above will make a lot more sense, in other words, I can explain any of the above (as can many on here) but it is how and why they are applicable when trying to present a solution to a problem is paramount.
  6. What are you trying to achieve with this setup? If you wish to record the IP camera this is not a cheap solution to do right and there maybe other ways.
  7. Many of the free CMS softwares supplied today with DVRs will support DVR and IP camera, while some also have apps that can handle both. Iirc, Adata DVRs from Dahua have this function and are cheap but double check before buying, not all their DVRs are Dahua afaik. Btw: Xvision/Alien/Genie all come from different factories so will have different functions and features, not sure if any of these offer what you are looking for.
  8. Hasn't been rebadged geovision for quite a few years now. AlterEgo, I'll send you a PM with details.
  9. Make sure the second drive is now set to master, just in case make sure you use the same cable as the previous master also. Check the system clock if you can, problems with the system clock can cause errors and corrupt the recorded database. I suspect issues with the clock, as when you connected the camera the DVR may have tried to record. Also DVRs that auto detect PAL or NTSC often use channel 1 for this usually on boot up. While the hard drives do not have the boot software on them (usually on embedded DVRs), the do offer information with regards to the recorded database (dates, tim
  10. PC on LAN You mentioned a different port number than 9000? Phone on 3G Make sure wifi is off when trying 3G Check firewall level settings (if there is level settings), some routers deactivate port forwarding at higher levels. Goto www.portforward.com and check how to for your router, there is also a software tool to check if you have actually opened the ports.
  11. Can you connect using wifi and local IP address? edit: nevermind, James got there first
  12. I don’t think that anyone would disagree that the security industry has changed significantly over the last few years. In the intruder alarm business, the revenue focus has shifted from profit on the supply and installation of equipment to profit on the life of the contract or take overs. CCTV is heading down the same path so how can CCTV manufacturers help facilitate the “recurring revenue” business model? The Key for me is the DVR. (The target market for this are End Users that would typically purchase an >4 camera system with a standalone DVR) In this blog, I hope to describe how a DVR
  13. What exactly are you right about Steve and where did I say I had a standard off the shelf solution? Where did I say I had any solution? You could not understand how batteries (dormant state) could be detected inside a retail package, maybe you still don't and thats my problem but is possible. End of. My original point was simply;
  14. Quote "rubbish"', quote "I'm correct", quote "wrong again I'm afraid"' - yep, reasoned, frank and intelligent, lol! If you actually know as much as you pretend to, you would be a valuable contributor, your delivery could do with some work though.
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