People live without cameras in buses, malls, traffic, we everywhere! One of the big debates as of late is Analog or IP Cameras when installing a new CCTV system. This debate has heated up recently with new technology that makes an IP setup a very viable option. To give a quick summary, Analog cameras talk with a Digital Video Recorder (DVR) via a coaxial cable. The camera footage is decoded at the actual DVR. An IP camera performs its decoding at the camera itself and transmits its footage via a Cat5 or Cat6 cable. Mini Size IR Dome Camera are basically an extra device on your local area network (LAN) or Wide Area Network (WAN).
Analog camera systems are very straight forward and easy to install. Simply purchase a DVR with the number of channels you would like (# of cameras you want to add), purchase a power supply and any analog camera on the market. The next step would be to run a coaxial cable such as RG59 or RG6 between the DVR and the camera. You can even buy cable that has power wire attached. Cameras typically take 12VDC or 24VDC/VAC. Plug the camera in, power up the DVR and you are good to go with the exception of minor programming and network tweaking. The great part about analog systems is that if the power goes out the DVR will keep recording (assuming you have it backed up with an emergency power supply). Camera power supplies are usually backed up with 12V brick batteries. The SD Video Conference Camera can be tied into your LAN and the footage can be viewed from any PC that has authority on that network.
When we want to buy the camera, we should be a better understanding of it, which we buy is of great help. best china video cameras systems are going to be the future, there is no way around it. They will eventually overtake the Analog market and will dominate the CCTV world. IP Camera systems can be just as easy to install as Analog assuming you have some networking knowledge. Basically, the way that an IP system works is that each camera gets power (as stated in the Analog section) such as 12VDC or 24VDC/VAC and a Cat5 or Cat6 cable. The network cable would be tied into the LAN or WAN and would allow the camera to talk over the network. Network cabling does have its limitations though, you can only run about 328′ with a Cat5 or Cat6 cable. This is no big deal if you have a newer building and it has been wired for network drops. IP camera systems use a Network Video Recorder (NVR) instead of a DVR. They function similarly, with an interchangeable hard drive that is written to. The big difference is that cameras terminate using a network cable instead of a coax cable on an NVR. Simply plug a camera into the nearest network jack and power the camera up, configure the NVR to see the camera and you are off. If you want to learn more about cameras, please visit our official website: www.winsafecctv.com