SunnyKim

I may recommend the products from Taiwan, or Korea. Points are there they can still be competitive, more responsible for their products.

Thanks, Ilk. I agree to you 100%.

Questionz, The video capture card from Geovison could be as old as your cable. They may also charge you a lot for the card. If you leave your postal address in my Private Mail Box provided in this forum, I can send you the capture card for analog CCTV cameras for Free. Simply a gift for visiting at CCTVforum.com. The capture card of is for PCI Express Interface and for recording 8 Channels of analog cameras. We just started promoting our new video capture cards with our brand new high performance chip sets. The card is to be sent together with an NVR software as good as any one out there in the market. Please do not tell others because the free gifts are running short quickly.

HD-SDI system is designed for RG59 cable or better, not designed for Cat5e. HD-SDI is based on Very High Speed of Gigabit transmission technology, very sensitive to cable conditions. HD-SDI may work for short distance with Cat5e. But may not for a longer distance. The longer the cable, the higher the capacitance associated with the cable. It is the capacitance that degrades the signal quality during transmission, eating up high frequency component of the signal. The simple passive baluns would not work.

I guess that you got what you paid for. They are just assembly houses with no capacity for technical services. They just copied the whole solution except box. If you deal with local distributors in your area, they may work for your side.

As I notice the S-video interface, the system was not, in origin, designed for CCTV system. The S-Video signals were multiplexed(say one outof 4 inputs) and converted into one CVBS signal. That seems too much old system. Just throw them away. Tech has so much advanced during more than 20 years. Buy new system which is a lot cheaper.

joerockshard, Any analog cameras are supposed to output D1 or 960H sized video. Old DVRs had to scale down the video into CIF (a quarter of D1 size) for recording. Please buy a new 16 Ch DVR and plug all 16 cameras to the DVR and check whether you can get the the video quality that you like to have. Then you can start to change the positions of cameras or upgrade some cameras if needed.

prsmith777, I guess you better consult with Geovision. To me, your application seems quite heavy, even for your high-end PC. The reason can be explained below. The video data from 9 analog cameras need to be software-wise compressed and instantly viewed on the monitor. At the same time, the compressed bit streams from 16 IP cameras need to be decompressed for being displayed on the monitor. If those IP cameras are HD, the CPU load for decompression would be very huge, even for the high end PC. If the GV-1480 is based on PCI interface, the video size from analog cameras shall be limited to no more than CIF size and their video quality is to be bad. Also PCI bus is to be shared with input network bit stream from IP cameras. It seems your application also uses max bandwidth of PCI Bus. And CPU has to handle all of these things one by one, with a huge buffer. Also note that the compressed bit streams are to be stored on the HDD, before being readout/decompressed/displayed on the monitor. So 5 seconds delay seems not unreasonable.

Thanks, MilkIsBad. Please keep posting such news. I keep monitoring this kinds of technology with a keen interest.

Scampo, The card that you will be using must have been made before the year 2000 ( I mean before century). If you can leave your address into my PM provided by this forum, then I will send you the card that we are going to launch very soon. Of course it is free, under the condition that you would tell us what things are bad and what things to be improved. Of course, it is to be accompanied with a very high end updated NVR software that you would love. If you can, you may let us know of your opinion after comparing it with Geovision's. As another note, improper grounding and impedance mismatch could lead to a lot of noisy video.

Your HD CVI DVR is to provide Main Video Compressed Stream Files for the incoming HD-CVI camera video signal and storing them to its own HDD. Please check whether your DVR can also provide Sub Stream (compressed in smaller resolution and less frame rate) and sending the sub-stream file over the network cable. I understand most of decent DVRs can do that, then You need a NVR box or a PC with those soft-wares, which can store the substream file and can decompress and display when needed.

Price, Sorry to know No Help from police. Here goes one tip, but I have not tried. The idea lies in the fact that the plate number is in black color but the back ground of it is in yellow or a much bright color. The fact is the digital value of black or near black is 0 to 30 in all RGB value, but bright color values ranges above 150, in Red and Green. Please extract the region of license plate. Keep folding the same plate until the black number can be readable (identified). Folding means adding the value mathematically. The values getting over 255 will be chopped down to 255, to be represented in digital 8 bit. The values below 255 will keep being added to show you the clearer number. You may try to find a software pack to do this kind of things manually. Or ask a college programmer to do this for you.

Pixelplus has beaten Sony's CMOS sensor so badly in China market with pricing. Probably your cameras are manufactured in China. Its quality can be marginal to that of Sony's. To me, the lens comes first, then comes ISP chip which does the image processing on the raw captured image data from the sensor. As to ISP, most of the sensors, as Pixelplus', include the ISP into its sensor chip. In order to compare camera quality, you can plug the camera output (TV signal) into a high brand TV set.

I can supply the PCB boards of DVR cards with our chip sets. We can supply device drivers. If anyone who is interested in making Linux based DVR cards and doing its business, please let me know.

DDNS works when your DVR keeps telling a dedicated network server all the ip addresses in chain that your DVR is connected to. The server dynamically updates the ip address at a regular interval when the IP address in a long chain changes. If your DVR is port-forwarded and you can willingly take trouble to identify its global(public) ip address every time your remote access is blocked, then you do not need to pay for DDNS.

Any IP Camera that you find on the internet would do that for you

Your understanding is OK, Terry The analog TV signal (PAL, NTSC) is very much limited in carrying enough resolution for the video captured by a HD camera, what they call Mega Pixel, 1.3MP above.To be exact, more than 3 Mhz resolution can not be carried over the TV signal. So even the VGA sized (640X480X30 FPS) can not fit into 3 Mhz resolution or 6M pixelwise resolution per second. I mean theoretically. So we can claim that the 640 TVL is good enough to be represented as 960H. But when considering the most video contents can not always carry the black white lines (max contrast by each line), even 1200 TVL-horizontal resolution can fit into a total 3Mhz bandwidth of the TV signal. To say in other words, the captured video data is to be filtered less than 3 Mhz before being loaded onto the TV signal. 1200 TVL (horizontal resolution) may have a good chance to be untouched and delivered, retaining good horizontal resolution as captured. You must also note that the technology of image processing and sensors are always getting better. So new one is better than old one, you may be assured. But I always believe the quality of its lens decides the quality of video. And finally, when they say 960H, it is for analog. So buy the 960H DVR or Hybrid DVR that can work with HD transmitted signal (HD-SDI or HD-CVI), as well as analog signal (D1 or WD1, or 960H).

It is too dark. Get the light or IR on.

Can you tell your camera is the type of HD-SDI or ip Camera?

1. As to conventional analog cameras, say VGA, D1, and WD1(960H), TV signal (NTSC, PAL) is being used for transmitting/ receiving its captured video data over coax cable. But there is no fixed standard yet for trans/receiving such a large amount of HD video data in real time. HD-in analog may mean to HD-CVI type from Daihua. I understand Hikvision is also launching its own communication technology. It would take a while for the CCTV industry to get one standard, HD-in analog. Currently, they over-state that it could go up to 500 meter. But I do not buy that, as I tested it and failed with a rather cheap 200 meter cable which is being used for the conventional analog cameras. They may need a high quality special pure copper cable. 2.There is another type of technology, so called, HD-SDI, a SerDes technology. It uses high speed Serial TX and De-serial RX, field proven at the studios of broadcasting TV station. But a bit more expansive than HD-in analog explained above. But OK with conventional cables up to 70 meter. 3. And finally, HD-IP camera can be used. Huge HD Video data is to be compressed in less than 10 Mbit per second, which can be, then, delivered over LAN cable. Its drawback is time lag- spot previewing can not be in real time. A single bit loss can lead to a video loss of at least 1 second duration. 3. Buy a 16 Ch DVR for future expansion. Hybrid type can be your option, when you can add cheaper analog cameras, later on. 4. For all technology explained, cabling of 150ft or 200ft in distance does not present any problems. 5. Higher resolution counts but the video quality depends on good lens with being focused correctly, I believe.

There could be of course DVI to HD-SDI converter. And HD -SDI DVR Box expects HD-SDI signals to be plugged into. HD-SDI can be applicable up to 100 meter Coax Cable, they say.

I understand "gennum.com" was the first one to supply HD-SDI TX and RX chipsets. There are many camera and dvr suppliers based on the HD-SDI technology. Buy a Korean or Taiwan product, which will be less disappointing in quality and customer support.

Samir, Actually, HD-SDI system was designed for transferring a high quality video from the original film source, being used for broadcasting TV studio. CCTV has just started to use it for delivering HD raw video data from HD Camera. IP camera could be a cheaper option, but with some time delay and degradation of decoded video quality from the artifact of compression.

Samir, Ssnapier DVI(digital visual interface) signal can not go further than HDMI signal. TV signal (PAL /NTSC) from the DVR can go easily over 200 meter, but its resolution is quite limited as said. That's why my recommendation was HD-SDI system, which could be much cheaper overall.

HD-SDI is there for less than 100 meter hook up. Otherwise, IP camera could be the option.