The selective buying of the car DVR
The digital car monitoring system is composed of car dvr recorder, camera, monitor and sign line. The video digital camera will capure the video indicate in the car. The image sign will be transmitted on the car dvr with the video coaxial-cable. The digital video recorder recorder will pack and save this signal in the hard disk drive as to the setting pressure format. At the same time, the actual dvr can transmitt the video signal to the keep track of as to the selected substance modes.
The specialized aspects of the car Digital recording device
The car dvr has become the traditional embedded dvr segment market. It is a new product developed combined with the digital video and audio tracks coding. The car Digital video recorder integrates the digital car stereo coding, large capability data hard disk safe-keeping, wireless video transmitting and GPS satellite technology. It finds out the audio and video keeping track of in the passenger carry, special vehicle industry as well as other fields.
At present, the AV standard algorithms used by your vehicle dvr manufactuers are MPEG-2, MPEG-4, H.264 and MJPEG. The MPEG-2 along with MJPEG have a low pressure rate. The H.264 coding algorithm features rich in video compression, very low bit rate, very low bandwidth and adaptability. Along with the improvement of the camera resolution, the digital coding performance is replaced from CIF(352*288) to 2CIF(704?288), DCIF(528?384),D1(704?576).
The actual dvr shockproof technology is vital technology of the automobile DVR. It’s the difference between the gps recorder and also the traditional embedded dvr. The traditional shockproof technology commonly uses the mechanised method to suspend that in the special shockproof machine. The shock absorber absorbs the vibration in addition to impact energy. This magnetic head won’t be affected by the physical vibration.
Furthermore, a number of manufacturers choose the digital shock absorber solution. A number of car DVR provides the customized characteristics like GPS satellite locating, car info recording and media player based on the recording function.
Generally speaking, most of us judge the car DVR based on the stability, shockproof capability, thermal stability along with miniaturization. However, the different chosen models have different features. The car DVR contains the following functions.
A single. The professional strength design. It meets the needs of the working environment of the large offer voltage fluctuation and also electric pulse reach.
2. Professional shockproof style. It’s lockable in addition to movable. It can give you the convenient data copy function.
3. The actual embedded operation method. It’s stable and difficult crash machine.
4. It supports multiplex car stereo input. The real moment monitoring and documenting are realized.
Five. Video recording as well as quick checking capabilities.
6. It has film loss alarm purpose.
7. It props up the large capacity hard drive. It’s plug in addition to play.
Except for principle functions, the car digital video recorder should have the powerful expansibility. It can provide different expanding functions about the user’s needs. It could record the operating process. The real serious amounts of two way information sending function can help you realize the monitoring managing. The car entertainment perform can realize the video playback. It can be used to help broadcast the ad and recreation system.
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