• Power Over Ethernet (IEEE 802.3af) Less cabling Can be added using injectors (mid-spans) Use existing Voice over IP switches
Various video compression methods are available ◦ Motion JPEG ◦ MPEG4 ◦ H.264 ◦ Wavelet Most cameras only have one or two types of compression available
The camera can be used as connection device for other types of data: ◦ Alarm Inputs ◦ Alarm Outputs ◦ Audio (Bi-Directional) ◦ RS-232
Many models have card slots available for wireless Ethernet adaptors or local storage Many options are available for wireless connection to cameras
Most models have built-in motion detection Some have built-in video analytics ◦ Intelligent motion detection ◦ Abandoned object
Software Solution ◦ Installed on a non-proprietary server ◦ Advantages: Customers can source their own servers, workstations, and storage devices Can be less expensive in cases where there are a large number of cameras being recorded at a low frame rate Virtually all IP cameras are supported Virtual matrix switch software is available
◦ Disadvantages of software NVR Can be more difficult to install and service Higher total cost in most cases Limited integration with access control Customers can buy their own servers and storage
NVR on proprietary hardware ◦ Software is pre-installed on hardware provided by the CCTV manufacturer ◦ Internal or external storage is also usually provided by the CCTV manufacturer ◦ Advantages Easy to design the system Easy to install and service Many of these types of NVRs can be integrated with access control systems User interface may be similar or identical to DVRs Well developed suite of features inherited from DVR technology
◦ Disadvantages of proprietary NVR Usually support a very limited variety of cameras Customers that desire IP surveillance systems may not want to be locked into proprietary server and storage hardware
Hardware Cost ◦ $300 to $500 more per camera Requires a higher level of skill and training to install Introduces a different group of competitors ◦ Internet Resellers ◦ Network VARs
Existing IP network infrastructure can beutilized Gigabit Ethernet Backbone Schools, office buildings, etc.
Large facilities or campus environments Server pulls video over network backbone Long distance “home-run” cabling is not required.
Locations are connected via a WAN Recording is done at a central location
Customer needs high resolution images ◦ Most surveillance grade IP cameras can provide higher resolution images than DVR ◦ MegaPixel cameras can provide very high quality images Remember that they will require at least 20 times more storage space than a standard camera Customers with the future in mind Customers with a strong IT department
Sridhar ponugupatiBlaze AutomationHyderabad, India