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koolmer

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Posts posted by koolmer

  2. Posted

    hi. a dvr is just as complex to set as 1 camera.... your idea of just using 1 camera does have problems. first recording (you need recording) ok your going to use an alarm system to send you a sms. then you are going to log in with your iphone to watch what is happening. what you will see is nothing. you are forgetting about time delay.

     

    90 secs for your sms. then you have to switch off your alarm via phone ........ if you dont as you are connecting to your camera via your iphone you can guarantee another sms will come and your iphone will go back to the message screen. you could be looking at 10 minutes from alert to iphone footage.

     

    dvr. you can have images direct to your phone ... and you have the footage if the dvr is hidden well

     

    Hmm - I see your point. Ok, he needs recording. But still a DVR is another additional device and I would prefer IP. One of the computers could act as NVR. I was planning to use "Total Control" http://www.youtube.com/watch?v=fKAtvTCjPXI to directly access an IP camera.

     

     

    Take a look at Y-cam, they have a small budget internal IP VGA camera with IR night vision and SD card slot for recording, it can send an email on motion detection with scheduling so the motion only works after you have gone home - Works on PC or Mac and is Smart phone copmpatible - you just need a little knowledge on Static IP's / Port forwarding.

     

    http://www.y-cam.com/y-cam-knight-sd

     

    No - it's not my Company !!!

     

    Sounds very interesting - I will take a look!

  4. Posted · Edited by Guest

    Hi Everybody,

     

    My brothers company got robbed yesterday. It's only 1 room. He will install a simple wireless burglar system that sends him an SMS or gives a call to him.

     

    Additionally he needs 1 cameras that he can access with his iPhone. It's dark in the night, so IR is needed. It should be an IP camera with VGA resolution that he can setup himself to work on his iPhone.

     

    koolmer

  7. Posted

    You have connected web cams to a DVR card?!

     

    DVR cards need an analogue composite video input and usually use BNC connectors.

     

    What is "medium priced"? What did you have in mind?

     

    Edit:

    I would recommend this: http://www.netvisiondvr.com/ProductInfo.asp?id=33

     

     

    And here is something I wrote in another thread:

    I have 4 cards from Hik and I love them. IVMS2000 is the original Hik Software and is good, but NetvisionDVR is better Software (google it). It is hybrid and has a very nice feature list. Quality of the recording is better than anything that I got from standalones that I tried.

     

    The latest Netvision PC DVR that I setup is running for 2 months now and never crashed, never went stuck or caused trouble in some other way. I am running it on XP though. It is supposed to run on Windows 7 64 bit also. In the manual are steps written down that tell how to get it to run on a windows 7 system with 64 bit.

  8. Posted

    I have 4 cards from Hik and I love them. IVMS2000 is the original Hik Software and is good, but NetvisionDVR is better Software (google it). It is hybrid and has a very nice feature list. Quality of the recording is better than anything that I got from standalones that I tried.

     

    The latest Netvision PC DVR that I setup is running for 2 months now and never crashed, never went stuck or caused trouble in some other way. I am running it on XP though. It is supposed to run on Windows 7 64 bit also. In the manual are steps written down that tell how to get it to run on a windows 7 system with 64 bit.

  9. Posted

    seeing as most CCTV cameras are under 800x600 pixels, anything over 800x600 is really overkill

     

    Not if you use split screen

     

    Lets say you use a 1280 x 1024 screen for a quad display and the DVR supports the native resolution of 1280 x 1024. Then you have 640 x 512 pixel available for each camera.

     

    If you display 12 cameras on a 1080p screen then you would have still 480 x 360 pixel for each camera. This still gives you quite a good image.

  10. Posted

    Good DVRs have different camera setup for 16/9 screens. I use NetvisionDVR and if I choose a 16/9 resolution the setup looks like this:

     

     

     

     

    Of course there are more available setups, but this is just to give you an idea. Also good DVR Software should support 1920 x 1080, so that you don't loose quality because of interpolation. It is quite amazing how sharp a camera is displayed on such a DVR + 1080p screen, even when only a few centimeters big! There is much more resolution available for a VERY good and clear split view.

    untitled.JPG.78fe1f4ef3a073933ec73501383126a7.JPG

    untitled2.JPG.cda81d627f4a91c7a85bc330310e25cc.JPG

    untitled3.JPG.5711c789cf843485fdf4946dfe8c9f66.JPG

  12. Posted

    Hi,

     

    I use Wavesight tranceivers in these situations and they are not really expensive compared to others.

     

    The WaveSprint, WaveFlow and WaveMax wireless bridging systems provide secure, high bandwidth video communications over distances of up to 40km, on unlicensed 2.4GHz and 5GHz bands.

     

    WaveSprint provides short distance wireless bridging, with data rates of up to 54Mbps, at distances up to 1km. WaveFlow meets requirements for wider area communications at distances up to 5km with data rates up to 108Mbps in turbo mode, while WaveMax offers the same class-leading data rates at distances up to 40km.

     

    Also Wavesight uses reflections of the buildings to get from a to b sometimes.

    Be carefull that the vision is not completely blocked, also wireless connection goes through trees but not when their wet.

    The wireless connections are encrypted and secure.

     

     

    Greets,

    Electryko

     

    I had a look at WaveSprint. It should be enough for my application. BUT it says "optimised for use up to 1Km. With up to 54Mbps you...". I hate this unprecise "up to". I would like to know what I WILL get and not what I might get. Has anyone tested this system? How does it react to heavy rain or snow? What's the price for 1 complete system (for one bridge)?

  14. Posted

    thanks! Its hard to find cnb cameras in canada apparently, although I have asked a few for quotes. What are some other reputable companies? Read KT&T somewhere. Also read a lot about getting sony chips but I see many of the various companies use sony chips.

     

    Sony chip doesn't mean anything. The camera can still be crap. I don't know KT&T. There are many very good Camera Manufacturers, but most of them are MUCH more expensive than CNB. Samsung, Panasonic, Pelco, etc - just to name a few.

     

    Now, this is all analogue we are talking about. For IP it looks little different. The first quastion should be "What's your budget?".

  15. Posted

    Ok - I actually have a setup where I could test that.

     

    It's a Netvision server and a client. The client is only 20 m away from the server and everything is connected with Gigabit Network. Usually the Client is only used to display 6 cameras in D1 @ 12fps. I don't know if it really reaches 12 fps, but it looks quite smooth. The delay is about 1 second. However when I choose more cameras to be displayed (16) at the client, the refresh rate on the client gets VERY poor.

     

    I don't know why this is. The bandwidth should not be the problem and the PCs cannot be the problem either. Both computers are very powerful.

     

    I have to find a program that tells me how much bandwidth is used. Does anybody know a good one?

  16. Posted

    Hmm thanks for the reply. You will see that I edited the post. It is only about 500 meters actually.

     

    The cameras are watched 24/7. I am not good at calculating the necessary bandwidth actually. You can see in the image how many cameras there are. Now lets say I would want to transfer them in D1 with 6fps. Realistic? I am using H.264 hardware encoding cards from Hikvision.

     

    Edit (only saw this now): Yes there will be a server at each building and only live images get send over. I am planning to use NetvisionDVR cards for the servers and then access them in the control room with client Software.

  17. Posted · Edited by Guest

    Hi everybody!

     

    I will have an interesting job in the next year and I am not sure yet how to do it. There are 3 buildings that are 500 m away from each other. They are not in the same Street, but in the same part of town. The building in the middle should have a control room to control everything in all 3 buildings and see all cameras.

     

    There are between 16 - 20 cameras in each building. Now the question is how to transmit the pictures to the control room. This is going to happen over IP, but how do I connect the buildings together? I am not sure if I have a line of sight, because the buildings in between might be higher (have to check it). I have checked Ubiquiti equipment, but it really confuses me.

     

    Now, is it possible to establish a RELIABLE (also in Snow and heavy rain!) WLAN between those buildings? What equipment should I use? I would like to have 100 Mbps or more.

     

    buildings-1.jpg

  18. Posted

    Buy Hikvision,it have very nice and stable software for it`s money

     

    If you buy Hikvision cards, you can always use the original Software from Hikvision (IVMS2000) and it's for free. IVMS is good, but better Software does exist for Hikvision cards. I would recommend NetvisionDVR - this is the best that I found so far. I tried Skyvision (crashed regularly) and IVMS2000 (good and stable, but looks like it's 10 years old)

     

    You are asking for a program that can be minimized or run in a window and has basically a normal Windows window around it - I have never seen this. All these programs run in full screen and usually overlap any other window.

     

    koolmer

  19. Posted

    It will say in the product discription if the card has Hardware encoding. If it doesn't say anything about it, you can be sure that it has Software encoding.

     

    Biggest benefit of Hardware encoding is that the computer will practically be idle and respond very fast. I have 32 Channel systems recording in D1 with 10 fps and CPU usage is around 19%.

     

    I have used Software encoding in the past and would not do it again.

     

    I would recommend netvisiondvr, but I must also tell you that I haven't used any other Hardware encoding cards yet. Anyways, I am happy with my system and it runs with the cards from Netvision. The card will cost you around 500 - 600 USD.

  20. Posted

    I've seen this happen with an IQ753... the filter stuck halfway across the frame, so we had proper color on one side of the frame, and false color on the other, with a fuzzy line across the middle: the filter's frame was just wide enough to "blur" across the picture.

     

    Thats interesting. Did you manage to fix it or did you just send it back? I would send it back if my warranty hadn't ran out. On the other hand I think it is interesting to open up this camera and see if I can fix the issue.

     

    Isn't it like 1 AM in Canada now?!

  22. Posted

    ive done it on a sanyo day night box camera before, you basically have to open up the camera to get to it. In my case it got stuck from switching too much the first night I installed it.

     

    But mine works sometimes and sometimes it doesn't. Any idea why that would be? How does it look like inside?

     

    I guess the actual filter is a thin foil or piece of plasic or glass. It probably has some kind of frame around it and it must be switching to the side. How is that achieved? With an electric magnet?

     

    Edit: It seems to be falling out of place sometimes. I switch to color, the camera goes into color mode and a few seconds later the picture gets monochrome and blury. When I switch back to real monochrome the picture is very clear, but of course monochrome. Why is that? Why is the picture blury when the filter "falls" out of place, but clear when I switch to mono manually? Does the camera adjust the focus differently when in mono mode?

  23. Posted

    Hi everybody,

     

    Since a few days one of my GE CyberDomes (26x) is broken. The IR cut filter goes stuck from time to time and I get a blurry B/W image in the day. If I push the button to switch between B/W & color, it will work sometimes.

     

    My warranty has run out, but I still want to fix it. Has anybody here done that? What would usually be broken? Could it be just dust or dirt?

     

    koolmer

  24. Posted

    I don't have the card, but I have a question for you rory. Where do I buy CNB products? I don't find any real distributor of their products. Do they sell them directly to end-users?

    Quite a few online retailers sell their cameras, cards and standalones.

    I imagine the warranty with a retailer wont be much though .. should still have the manufacturer warranty though.

     

    Do you know someone in EU? CNB gave me some German website that has exactly 1 (!) CNB Dome on it. This was supposed to be their German distributor - ridiculous.

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