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What is an IP Camera?
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IP is an abbreviation for Internet Protocol, the most common protocol for communication over computer networks and the internet. An IP Camera is a camera that creates digitized video streams and transfers them via a wired or wireless IP network thus enabling monitoring and video recording as far as the network reaches. In other words, using an IP camera can save a lot of money on installation since most facilities are already wired with LAN cables. Wiring coaxial cables and power cables is the major expense when implementing analog cameras. It also allows users to have a camera at one location while viewing live video at another location over the network / internet.
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What is a video server?
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It has it's own "mac" and static ip address, so it is just like a computer on your network. A video server can deliver live video automatically or on request to a web browser and be viewed and recorded to a computers hard drive. Video servers digitize analog video sources and distribute digital video over an IP network turning analog cameras into IP cameras. A video server can also be connected via a modem for access over a phone or ISDN line.
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What kind of software is provided by Etrovision with video server?
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Etrovision will provide SDK (Software Developer Kit) along with a simple AP for reference.
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What is the difference between a web camera and an IP camera?
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A web camera is connected to a PC, normally through USB, and uses the PC to make video available to other viewers. It will not work without a PC locally connected to the camera. An IP camera usually stands alone, and combines the functionality of a high-end web camera with the PC and network interface working together.
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How much bandwidth does an IP Camera need?
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It depends on both the resolution and frame rate. It also depends on the compression technology the IP camera is using. Below are three of the most popular compression technologies and the required bandwidth and other important information.
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Compression Protocol |
M-JPEG |
MPEG-2 |
MPEG-4 |
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Compression Rate |
6 |
30-40 |
200-500 |
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Resolution |
352 x 288 |
720 x 576 |
720 x 576 |
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FPS |
25-30 fps |
50-60 fps |
25-30 fps |
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Bandwidth Required |
1.5Mbps |
4-15Mbps |
10K-1Mbps |
Also, please note that 30 frames/s (NTSC), (25 for PAL) is the required frame rate to provide continuous motion and good DVD like video quality.
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