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ryeporta

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Posts posted by ryeporta

  1. Posted

    So if all you need is a budget system with minimum of fuss, standalone is the way to go. If you need a few more features than what a standalone can offer, then the GeoVision card would do fine.

     

    I kind of agree with Securicorp ..

     

    Things to consider when using a DVR Card ..

     

    1) The card may be cheap .. but u gotta factor in the cost of setting up a PC system .. with the CPU/Mobo/RAM .. casing .. fans etc .. so unless u have a PC that is lying around and still meet the required specs .. it may likely cost quite a bit .. esp if u are building a 4-Ch PC Based ..

     

    2) PC knowledge .. it is 1 thing to plug the DVR into a PC .. and it is totally a different game if you are building a system that is running 24/7 .. the PSU .. the fans .. the mainboard ..

     

    U gotta ensure sufficient cooling and yet for the system to be quiet enough not to disturb the serenity of your home

     

    3) The hassle .. the problem with PC is that there are many points of failure .. I m new in this line but the amount of troubleshooting I've already done on those PC based DVRs is killing me..

     

    I personally favour PC-Based a great deal due to it robustness and customisability .. but .. unless u r relatively experienced in building PCs and extremely adventurous .. a stand-alone will save u a lot of panadols

  3. Posted

    Hi! I am Edmund from Singapore.

     

    Really new in the CCTV Industry .. starting out only in June. No prior experience in surveillance systems .. armed with only some knowledge in networks and PCs ..

     

    Found this forum a wonderful learning ground .. as I've seen many veterans here .. from such a diversed background .. who are so willing to share ..

     

    Hope to learn from you all .. and to contribute in little ways that I can .. Cheers

  6. Posted

    Unfortunately I can't reposition the camera as the client wants to monitor the front of the sales counters.

     

    Can you monitor the sales counters from a different angle? Use a ladder and and look through several inches of paper towel tube to mimic the perspective.

     

    Best,

    Christopher

     

    I kind of like Chris' answer .. ..

     

    Well try rory's advise 1st .. then if failed .. Chris' advise will come in handy .. I think that sometimes we have to manage clients' expectation and also to provide what a good friend of mine coined as "Customer Education" ..

     

    Your client may not be aware of such situtations .. not unless he is a photographer or photography hobbyist .. .. a good customer will be one that listens to advises and appreciate them .. u'll have a much easier time working with them in the future .. also .. it is a good way to earn their trust in your expertise ..

  7. Posted

    Hi Sawbones .. thanks for making this illustration so clear!

     

    I just like to add a few questions:

     

    1) Was told by my supplier IR LEDs have a "limited" lifespan. It about 18mth to 24mth .. is this true?

     

    2) If I point a long range (About 40m / 120ft) IR cam at a very near object .. there is a very bright spot .. like a spotlight .. is this a normal situation? Or are there more intelligent cameras that will adjust the IR intensity accordingly?

     

    3) There are situations where IR don't seemed to come on early enough .. the monitored area is rather dim .. but the object .. a car .. is brighter .. but the number plate is not bright enough to be identified .. How can I tweak this? Is it a inherent limitation of most IR cameras?

     

    4) Is there a diff in the technology of Night Vision vs Day/Night Cameras? Ok .. this sound dumb but .. forgive me as I m very new in the industry

     

    5) Under what will recommend a Day/Night Camera (0.01 Lux) vs an IR Cam?

     

    Thanks

  8. Posted

    Hi .. I am just a little curious abt the advantages of a CCTV monitor over a normal PC LCD Monitor

     

    I was told by my supplier that the main advantage is the life span and also that the screen will not be "burnt" with the DVR interface so easily ..

     

    Personally I also see that images are much crisper on these monitors .

     

    My questions are:

    1) Is it really better to advise my clients to get a CCTV monitor for the lifespan? I mean .. in my country .. a CCTV cost about 3 times that of a PC LCD monitor .. and LCD monitors usually come with a 3 years warranty ..

     

    2) Why are the images much crisper and sharper on the on the CCTV monitor? Is it a setting issue or a technology issue?

     

    Thanks

  9. Posted

    what are the best cat 5 to bnc baluns you guys have found? the ones I've tried using are crap and could use some upgrading!

     

    I've gotten a smaller batch tat transmit both pwer and video .. lab tested .. but not field tested yet .. will post more in the future after I put them through the field test.

  10. Posted

     

    We're waiting on a Panasonic demo that claims 600 lines...

     

     

    Don't really need wait .. 2 Korean companies have already done it ..

     

    Samsung Techwin has 1 model but not available in country yet .. can't remember the model .. but u can chk out their website .. it is a box camera

     

     

    CNB Techonology has a range in their Mona Lisa Series. Tried to contact them but they seemed very protective in releasing any information though ..

     

    Unfortunately I am too new to post their URLs .. in this post .. but I am sure u can google them ..

  11. Posted

    I suggest you do not use UTP!!

     

    That is exactly what my cabling contractor advise me against UTP. However I am still VERY keen to bring this stuff into my country.. a passive balun that transmit both power and video signal over 1 UTP ..

     

    I've personally tested the baluns .. did not to the extreme but here are the results:

     

    For both power and video, perfect at 65m (abt 200ft)

    For video only 200m (abt 670ft)

     

    And that is using some very cheap UTP cables.

     

    This is my personal feel abt the UTP/baluns setup

     

    Pro:

    1) Cheaper - 1 UTP + 1 pair of balun (abt $12 for the samples I bought)

    2) Future conversion - can be convert to IP Cams in the future with POE

    3) Easier to lay - we all know how inflexible coax are .. Crimping a RJ45 is so much easier than doing the terminations for both Coax and power

     

    Cons:

    1) More pts of failure .. the fault could be from

    - UPT

    - RJ45 connector

    - balun

    2) Less revenue for cabling contractor - He cannot charge the full cost of laying the UTP for future conversion.

     

    Just my 2 cents .. like to hear from the rest of forumers

  12. Posted

    I have a 5000 sq. ft. warehouse sitting on 10 acres of land. I have a simple security system that sets off an alarm everytime the wind blows. I want to go to a security system that imploys cameras. I am not sure if I should go to a stand alone DVR. Here are the requirements I am looking for:

     

     

    Just thinking given the size of the size of the area, will a wireless camera system be more appropriate?

     

    I am just curious, cos this looked like a pretty big area for someone like me who is living in one of the smallest country in the world - Singapore

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