Next, we go to features. Once again, the IP cameras offer the biggest bang for the buck. The features of the average analog or hybrid analog camera have not exactly jumped out and bit anyone lately. This is explainable. The IP camera has the advantage of being a computer. The higher you go up the quality ladder with these units, the more features become available. We can add just about any level of intelligence or programming at the camera level. It's like having a head-end controller at the front end of every cable or LAN.
The result is that large numbers of cameras can be used with little or no bandwidth impact. Why? How? Simple. The decisions are made at the camera. So instead of sending a continuous stream of high-bandwidth video back to the head-end for a decision, the camera picks what needs to be sent and sends only that information. We also have the ability in some units to store limited video streams until a request to download comes from the central body. What a hoot, eh? Will this trend of intelligence and decision making at the camera continue to evolve? Absolutely. We are, after all, working with computers. Just look where the Commodore 64 went.
From here we go to transmission methods. The leaders of the pack are twisted pair, fiber optics and wireless. More and more equipment is coming to the shelf with twisted pair technology built in. Will this continue? Absolutely. Why not? It has coaxial cable kicked from here to Bolivia.
Fiber optics just continues to get better. We can do almost anything with fiber today, including sending huge numbers of live, full-resolution, full-frame-rate video signals simultaneously in two directions on a single fiber. Next, add equal numbers of data signals, voice signals and generated instructions for your PTZs, and you are just scratching the surface of the best glass in town. Then, stage right, here comes wireless. WiFi, Blackberry and canopy systems. Talk about your plug and play. Imagine a full stage system where you could take a camera with a built-in transmitter/receiver and power it up at any point in your system-no, anywhere on your property. Then, using a PDA, portable computer or a PC, do a simple image and instruction set-up. Holy cow! Are we there? Absolutely.
The only problem at this point is that wireless systems still, for the most part, are restricted by bandwidth problems and so can only handle so many cameras at a time, even intelligent ones. What does the trend master say as we trudge up the next hill? Twisted pair will continue to grow in popularity, fiber optics will continue to blow us down, and wireless can only get better. Hopefully, the trend will be to continue to streamline the bandwidth required for high-detail images. If so, wireless could surface as a huge leader in the on-site transmission race.
Digital video recorders seem to have finally lost their wind. Granted, these devices have done some great things for our industry. But let's face it, for the past couple of years, they have also been a huge pain in our backside. I don't know what was worse, the large-scale bragging about what DVRs could do (mostly to cover up what they couldn't do), or the number of computer geek manufacturers coming out of the woodwork with a new unit to look at every 30 days. The good news is, the trend is finally twisting away from the overrated, under-built units of the opportunist and ending up in the hands of a smaller number of survivor geek manufacturers that are finally getting the design right.
The second half of the storage trend is that wary end users and designers are tired of stacking DVRs to get a single recording solution. They are also tired of spending huge amounts of money to come up with a simple hard drive. As a result, they are buying stock hard drives and working with digital organizational manufacturers that are offering single solutions to multiple-format integration problems. A huge step forward in an early developing industry. Will this trend continue? People are saving huge amounts of money, they're able to work with anyone's format, they can integrate new and existing technology and improve control features. Why wouldn't it continue?
All these trends show that the CCTV industry continues to take huge steps into the digital industrial industry. This is the only way it can go. However, buyer beware! We have only touched the surface of the subject. Prices will continue to stagger all over the board, and the technology will seem to take great leaps as opposed to slow, simple and steady forward motion.