General Instructions :
Fill out the lines starting from the top. There are two lines for each resolution, one for MJPEG and one for MPEG4. If you have many different frame rates for the same resolution, use as many additional lines as needed by simply changing the resolution to what you need.
Assume the following example:
- 5 cameras at 320x240 resolution, MPEG4 video compression and streaming at 5 frames per second,
- 2 cameras (same resolution and same compression) at 20 FPS.
- 2 cameras at 1280x1024 resolution streaming at 5 FPS.
This can be accomplished by doing the following:
- Starting at the second line (first line is MJPEG so skip) enter the 5 cameras at 5 FPS (fill in also the hours of activity and percentage of motion).
- Skip to the third line (2nd line is MJPEG) and select 2 cameras at 20 FPS (remember to change the resolution to 320x240) and fill in the rest.
- Lastly, go to the mega pixel section and fill in the mega pixel cameras.
- Click "results" to view your hardware requirements.
Resolution:
NTSC Standards CIF = (320 pixels x 240 lines), 2CIF (640x240), 4CIF (640x480), 16 CIF = (1280x1024 1.0 Mega Pixel), 25CIF (1600x1200 / 2.1 Mega pixel), and 40CIF (2048x1536 / 3.0 Mega pixel). For the compression levels we are using the average level(middle of the road). For example, 8 KB for CIF, 32 KB for 4 CIF, 80 KB for 16 CIF, 130 KB for 25 CIF and 180 KB for 40 CIF.
Video Compression:
Video Encoding and Decoding Compression Standards: The most commonly used today are MJPEG and MPEG4. Note: Currently high resolution cameras only stream in MJPEG compression. As technology improves streaming in MPEG4 will follow.
Frame Per Second: Frames per second (also known as images per second) are the number of images per second the camera sends to the NVR .
Hours of Activity Per Day: Hours during the day that motion might trigger recording. For example, a typical business open 9 - 5 would have 8 hours of motion.
Percentage of Motion during Activity Hours: Amount of time during (Hours of Activity) that motion might occur on many of the cameras at the same time.
Workstation Mode:
Workstation mode is used when there is a need to view live or playback video directly on the workstation screens, usually when the NVR is located next to an operator. The video can also be accessed by via the NetGuard and NetGuard-EVS NVRs. The hardware used is usually workstation class hardware in either mini or full tower formats.
Server Mode:
Server mode is used when there is no need to view the live or playback video directly on the Server station screens, usually when the NVR is located on a rack in a computer room, closet or unmanned location. Access to the video is through the NetGuard and NetGuard-EVS clients. In this case you will notice a reduction in the CPU and video card requirements, as the system does not need to de-compress the video for on-screen presentation. The hardware used is usually rack-mountable server class hardware.
To run the software in server mode: launch the Administrator, select 'General Settings' and check 'Disable Screen Update'. |
