Conflicts among high speed, large amount of data rate and long time to record are still problems in the field of frame
grabbing. It has been settled partly and temporarily by the development of raid technology. A frame grabbing system
with the characteristic of high speed and large storage is generated using raid technology and Fibre Channels. It is able
to keep recording frames at a high speed for a long time without reducing resolution. The system has been set up
successfully whose recording and displaying process can be generally controlled. Problems that show stable live video
in real time while recording have been solved. The composition of hardware in this system is given out in the paper. The
principle how it works is described.
For the purpose of recording at a high speed without dropping frames and to insure the imaging quality while
synchronized with outer signals that generated from an outer circuit, several synchronizing ways are discussed and
compared. The most suitable way is chosen through analyzing theoretically and tested out by experiment.
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