rory
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Everything posted by rory
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Hi, lots of info in the posts linked from this thread: http://www.cctvforum.com/viewtopic.php?t=6122
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GunRunner1, GeoVision is a PC DVR Card, so it will be a PC System.
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GunRunner1, no, it is a DVR PCI Card, requires a PCI slot which Notebooks do not have.
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it may not be acceptable in court in certain countries, such as the one ben is from. Though I believe ben may be a manufacturer in China, so perhaps it is just a way to push his companies MJpeg DVRS?
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No flirting in the forums. LOL
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whats your impression to "made in China"--survey
rory replied to leo0929's topic in Security Cameras
For MIC typically quantity over quality .. cheaper components means a lower quality product. The cheaper they can sell it for the better .. more sales for the Chinese Government. Yes, some products are high quality, and you pay for that, but it is generally the other way around. -
110VAC yes
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I had systems in Retail Businesses running 5fps and lower, and they caught every incident of stealing. Trust me, 15fps is not a minimum, heck back in the day we were doing 0.1fps even to tape. We're just spoiled now The more the merrier though, going by todays technology you can easily get faster speeds if you can afford it; back in the day, there was no other choice. Im using the 1480 at the night club for that reason, they have tons of fights and other things, and this helps. Could he get away with much slower, sure, he was for many years. If you have the money and the technology is there though, why not use it. I do feel the GV650 and the GV800 still certainly have their places, especially in retail businesses. That said, for retail business on a budget, even the GV600 is fine (4 camera example). Yes those look like the black borders. Without the black background, they are even more noticeable. The side and center borders should be the same width of the top border in the image on the right. Ive seen them on all kinds of Geo systems I have demoed where they were running combo cards, though cant say if any were NTSC or PAL. Geo confirms the issue, however they mention it is also in 320x240 mode, which I dont use, and also they say it is with H.264, however it appears with Fast Mpeg4 also in my experiences.
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for my home cameras, heck i have 1 single 20amp plug spliced out to 4 bullet cameras
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video over Power over ethernet
rory replied to cctvlad's topic in Video Transmission/Control Devices
Ive never personally used the Decoders, just going by theory from research. Basically you encode the analog video (output from the DVR) using a 1-channel IP Video Server (Video Encoder), plug that into the router of your choice, then on the other end, from the access point, you plug the appropriate port into the 1-channel IP Video Decoder, which decodes the IP video to analog for output to any composite input such as a DVR BNC port or TV's AV input. Or .. If you already have a DVR and if that has client software for your PC, then optionally just use a PC (mini or not) on the TV side and run that software when you need to. You would probably want to just stream in lower res and H.264 and also make sure you can set a default site for the software to load, and place that on start up. If the software does full screen then even better. use the TV Output from the PC's video card to connect to the TV; eg. S-Video. -
IMO, the GV800 is great for surveillance. Obviously the 4 channel version is better than the 16, as then it is basically real time video recorded and live. 20 fps is real time to the human eye. 15fps looks real time to the untrained human eye, or at least resembles it enough. A colleague is recording at 1fps set to per camera .. for his alarm central station .. it is fine, evidence is captured without any loss. He is not monitoring a road though, in that case it would be another story. Lower the frames, longer recording. BW cameras (instead of Color), longer recordings also, Due to lower image size. I had a night club with the GE Kalatel DVRs for 5 years, captured every incident, and that was 60pps max, and lower quality evidence sharing; but it still worked fine. Switched to the PC based for faster live video and also higher quality evidence sharing. I remember when we were capturing evidence on Tape even .. before the DVRs came about .. worse thing with that was when needing to search for an event .. well the lower quality also, even when using S-VHS. As to the GV1480 vs the GV800, the GV800 produces better quality live video, in my experiences. There is also a bug with the Combo cards, when set the source to 740x480 you will get black borders around the video in playback and remote - this was acknowledged by GeoVision to effect only the Combo cards, and it still remains today even with a brand new card and version 8.12. All Geo Cards support the software feature "Smart Motion Detection", which means it only records which cameras are picking up motion at the time, so the total fps is distributed amongst those. I agree though, no perfect DVR yet, I want higher resolutions, speed is nice, but less of an issue. With the low cost of storage now, I would prefer lower compression and higher quality, I mean $100 for a 500GB Drive now .. Basically it depends as the GV1480 is quite a bit more $$, the Gv1120 is not that much more, so if you want real time live video, and can deal with the black boxes in 720x480 mode, then the GV1120 it is. if using only 640x480 though no big deal, other than the live video quality is slightly less on the GV1120. The DSP feature is basically useless unless you just want to duplicate the video to another monitor/TV, and if you dont mind loosing Direct Draw overlay for the live video, then you could use the DSP Spot Feature; I dont recommend that though. just my 2cents
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Intel Core 2 Quad Q6600 2.4GHz Socket LGA775, 8MB, BOXED 300,- USD + tax at my location. JD yep, only $75 more than the E6600 .. im going to use them from now on .. for now anyway as the prices are dropping like flies .. well up and down right now. By the end of the year who knows what CPU we will be using
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video over Power over ethernet
rory replied to cctvlad's topic in Video Transmission/Control Devices
Not really, they are both DVRs so you can only access one or the other. You would want the client side at the TV and the Server side (DVR) at the other end where the cameras are. I made some custom software like this for the Geo DVRs, but havent released it yet as rewriting all the main code. It loads in the BBlean shell (not explorer.exe, no desktop etc) and once you set it up once, it auto connects when you power up the PC .. it will stay running until your turn it off .. very basic version .. connection drops the video just goes or if one camera looses video that goes .. but once it comes back the video comes back up as it auto reconnects. But if you have the decoder on the Tv side, just output from that direct to the TV, and you dont need any client software or another PC. -
Yall seen the Core 2 Quad is now like $300 ..8MB cache and 4 cores .. Yippee!
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Probably over edited images for the media .. dont know what their system is though as they dont mention it?
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Cool .. yeah my mother is scottish also, moved here in the 60's I think, same thing, in her twenties I believe.
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video over Power over ethernet
rory replied to cctvlad's topic in Video Transmission/Control Devices
What DVR Card are you using? Does it have a DSP (RCA) Output for the video only? Do you need total control of the video or just to view a duplicate of the DVR's video? Why would you be interested in POE? That is sending POWER over the Ethernet, not Video. Are you talking about sending it using POWERLINE devices? Such as how X-10 does it? If so, then just look for one of those. Too many issues with that stuff down here so personally I cant recommend anything. Here is one idea though: http://reviews.cnet.com/Corinex_Powerline_router/4660-3319_7-6239462.html Then use an IP Encoder (Video Server) and an IP Decoder on the other end, 1 channel only, high res, and output to the TV like that. Other Option .. depends what you want to spend .. Setup Wireless Video Transmitter (some call it analog wireless) on the DVR side, setup high, and better yet, in its weatherproof PVC enclosure on the outside of the Building, line of sight, to the other building where a receiver is. Video from there goes to the TV using RCA. That is a typical wireless CCTV setup. Check out VideoComm. Next option .. depends on the DVR, if it has a client based program you could set up a mini PC on the TV side and just run that program on that, using a Wireless Router just send it over that route with a wireless access point. You can get away with a simple enough Linksys router and access point to save money. Though the PC will still cost extra, and depends on how good the DVR's network software is. -
LOL yeah! Welcome to the new guy.
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if you use the DSP Spot Feature on the menu, it disables Direct Draw Overlay which means lower quality live video (blocky video), more noticeable when in full view. Personally I dont think its worth the lower live video quality, but thats up to the user. You can still use the DSP output but dont need to turn on the spot monitor feature, however it will just duplicate the video from the DVR.
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all this time i thouht you were in the UK Is that Spain? Or are they independent? Are you spanish?
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Altronix Distributed power supplies, wall mount. Get Isolated units if using 24VAC.
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yep they arent cheap, but they work and they last, even on the ocean. The cameras in that image are going on 6 years now, even added a few more. Retail pricing would be around $2.5K.
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Hilly terrrain with dense forest - no line of site
rory replied to sbbamafan's topic in Video Transmission/Control Devices
Line of site means just that .. point them at each other .. anything in between can cause issues. -
Yet Another Newbie says 'hi' and asks for advice
rory replied to ravedog's topic in General Digital Discussion
Generally its Quality & Features problems. I did demo one that was pretty decent, though as far as i know it still required windows, even though the entire thing was in Java! -
apart from the front door camera on the right lower box, they are all EX-82's from Extreme CCTV. Its the camera pictured in the 2 top boxes. Most of them are just mounted on the side of the home though, only 2 poles exist.