What are the advantages and disadvantages million HD IP Camera

What are the advantages and disadvantages million HD IP Camera
Megapixel network cameras monitoring almost become a mainstream product, not knowing that one million HD IP Camera has its unavoidable shortcomings.
1, the first is occupied by storage capacity. If you press 2M stream computing, each image will occupy 0.9G space per hour, the same ratio D1 network camera than doubled. Demanding that the computer again, because of the high definition image decoding to consume more CPU resources, decoding an HD network camera, roughly equivalent to four standard definition decoding network cameras.
2, some of the high-definition network surveillance cameras SD illuminance is less than good. This mainly refers to the majority of CMOS HD products, but this problem has been dramatically improving, and before long, this problem does not exist. The CCD HD network camera illumination problem does not exist, but the cost is too high, so the current is still the mainstream of CMOS products.
3, more bandwidth. 1080P HD network camera by calculation, the amount of information that is 5 times D1 cameras by optimizing encoding compression, bandwidth of about 2M, D1 network camera than twice as much. If used within the network is also a big problem, but to long-distance transmission, you have to use the line, ADSL is not enough.
Even HD IP Camera have these disadvantages, but we still have a lot of ways to circumvent, some issues such as bandwidth, even if the current is not a good solution, but development point of view, it will certainly be solved.
Let us say that it is the application of advantage.
Network Camera not only computer-based local area network for regional monitoring, such as monitoring residential, office buildings, banks, shopping malls and other traditional monitors; but also through the INTERNET across the region for the new remote monitoring and online display, remote child and elderly care , unattended monitoring communications room, tourist attractions online telecast, products, online exhibitions.
Features:
The image encoding M-JPEG, through the network using TCP / IP protocol for transmission; through the network camera or lens, PTZ, and other external equipment operation control;
Built-in one 10M/100M Ethernet RJ45 interface, remote interface through the network; a parallel I / O port, you can connect an external sensor alarm, can also control external devices or linkage alarm function; an RS45 serial port, you can the lens, PTZ control, or connect other external devices;
Embedded WEB SERVER, Megapixel IP camera provide an internal WEB SERVER, allows users from a PC using a standard browser to a variety of interfaces, operations; has security mechanisms alone, you can operate the camera points to the user level permissions verification;
Centralized management of a central monitoring and control of distributed networks and no central monitoring network; built-in real-time operating system that supports software download and configuration settings for easy upgrades and operations management.
From:http://www.vstarcam.com/channel/What-are-the-advantages-and-disadvantages-million-HD-IP-Camera-156.html