Knowledge Description: Pc
First talk about the development of PC-type hard disk recorder of history it:
VCR has experienced several such processes, the first is the tape, and many people are used, 2 hours a tape of that, but the 24-hour day for scallops, bank security personnel finally crazy ...
With the rapid development of the computer, people developed a video processing core card, which makes analog video into digital possible, so that the first piece of video capture card was born. That is, I said PC-type hard disk recorders. This is a small security under the Bank finally happy, because the use of large-capacity hard drive, complete liberation of their day for the suffering of the tape. However, Windows-based system Monitor Process applications, not to mention the stability of the software itself, on Windows itself, it does not want to work 24 hours, without a crash for months, maybe even Bill Gates himself would not believe, there was something annoying a, PC-type hard disk recorder or crash all day, or every turn on to something Virus . Our security comrades has mad ...
Bank chief of security, could not, bring the phone to us Technology Director of meal fat Biao: "What you breaking product developed, the day of Death, want do not want money ..." The pain, our director in the bottom of my heart secretly swore: "and then use the Windows platform, the TMD can not!"
Six months, we have based on Linux platform DVR Finally surfaced lakes, and not a virus, no disk fragmentation, the system finally is stable for some time. Security Section long day nothing else to do, to get some video files to go home to see. Because education is limited to using Linux since it is difficult, and copy down the files found on his computer simply can not play, so he brought director made a call with us again once Biao. Director of desperation, began to plot the next generation of video products of the ...
The technology development and maturity far greater than people imagine, and production of PC hardware manufacturers, timely security monitoring this area, produced specifically for security monitoring of PC hardware. I speak here not substantially v. their differences and general PC hardware, I will casually talk about the ordinary For example hard disk drives and DVR-specific differences:
DVR-specific hard drive is designed to meet the digital hard disk recorders on the system data and digital image information storage requirements. Normal PC hard drive designed to 8 5 basis. 8 5 refers to the ordinary PC hard drive to work 8 hours a day, 5 days a week (hard work is the hard drive in read-write state. Require special attention to the hard drive after power-two states: the work of state and wait state, where working conditions are hard to read and write the work, wait state is working hard not to read and write but on standby.) DVR-specific hard drive is based on 24 7 with Enterprise Level design and development of environmental requirements. 24 7 is working 24 hours a day, 7 days a week (is continuous work). So, not suitable for normal PC hard drive read and write continuously for long time, if the long hours required to read and write ordinary PC hard drive will greatly damage the hard disk, so that abnormal sound hard, read and write errors, working suspension and many other issues and thus leading to the final damage the hard disk. Digital hard disk recorders is continuous year round operation, thus requiring continuous work hard to be a long time, to meet this requirement is the DVR-specific hard drive.
Following entered, the assembled PC-type hard disk recorders should pay attention to. First state that I am not teaching you how to installed capacity, but some details of how to improve the overall machine stability and longer service life.
Installed when the start is installed CPU, simple steps may seem simple, but very luxurious, the place where the most stress is coated silicone grease. But we think the machines are in use is 7 24-hour operation, if the server room in a professional, intelligent temperature control air-conditioning at any time, I will say is nonsense, but most of the machines it no this treatment. In the general environment, CPU temperature is quite astonishing, if not above the fan Radiator CPU used omelette is no problem at all, and Grease at this time on an important role, when Tu sure to note that even to be coated but not too thick, too thick a time when the fan pressure up grease on the To spill, if CPU flow into the tank after some disastrous, but it can not be painted too thin, too thin CPU and fans will have a certain gap between the heat sink is not conducive to heat dissipation. I see a lot of time in loading CUP grease are readily a coating, or simply not painted, and this in the future because the CPU temperature is too high if the resulting crash, then you certainly will not attentive and regret . Second, to say that the hard disk installation
problem. Hard before a big fan, this fan is cooling the hard drive from the vital role. Now the hard lot, usually installed is a T, speed fast, high heat dissipation. Very often when the computer is equipped with a large hard drive, but the location of the hard disk slot, or there are many. The location of the face of so many, many people, when installed is pick any one location, leading to the location of the hard disk is not the most central in the fan. If the hard disk temperature is too high, read and write speeds are slower, and sometimes lead to worse quality of the video. Also is the screw, Standard Is 4 points, in fact, the stability of a fixed order to drive the screw 8 is not off, once and for all.
On the capture card issues. Acquisition card installed, when a tank is usually installed on every other one, this one conducive to heat the second is conducive to the convenience of disassembly. Post-acquisition card installed to give the interface behind the marker is a few roads under the acquisition card, which is conducive to the installation of pigtails. The installation must not go wrong queue, for example, a good many people pretending to be collecting cards of the card test, simply take a queue on the plug, and then found that some port is not used, this time he would consider the acquisition card is bad. In actual fact, if you use 4-way pigtail plug 8 capture card that would lead to a port is not aware of the situation, so this must be noted.
Well, first say no more.
Knowledge Description: Pc
By: wuwu
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