The selective buying the car DVR
The digital car keeping track of system is composed of auto dvr recorder, video camera, monitor and transmitting line. The video video camera will capure the video sign in the car. The image signal will be transmitted towards the car dvr throughout the video coaxial-cable. The digital recording device recorder will reduce and save the particular signal in the disk drive as to the setting compression setting format. At the same time, this dvr can transmitt the playback quality signal to the observe as to the selected element modes.
The techie aspects of the car DVR
The car dvr is among the traditional embedded digital video recorder segment market. It is just a new product developed together with the digital video and audio coding. The car Digital recording device integrates the digital audio and video coding, large total capacity data hard disk storage, wireless video shifting and GPS satellite tv for pc technology. It realizes the audio and video checking in the passenger transport, special vehicle sector as well as other fields.
Currently, the AV common algorithms used by the automobile dvr manufactuers are MPEG-2, MPEG-4, .264 and MJPEG. The MPEG-2 as well as MJPEG have a low compression setting rate. The H.264 programming algorithm features with higher video compression, lower bit rate, lower bandwidth and adaptability. With the improvement of the recorders resolution, the digital programming performance is enhanced from CIF(352*288) to 2CIF(704?288), DCIF(528?384),D1(704?576).
This dvr shockproof technology is key technology of the car DVR. It’s the difference between the gps recorder plus the traditional embedded digital video recorder. The traditional shockproof technology typically uses the hardware method to suspend the item in the special shockproof appliance. The shock absorber takes up the vibration and also impact energy. The particular magnetic head aren’t going to be affected by the mechanical vibration.
Furthermore, a few manufacturers choose the automated shock absorber solution. A few car DVR gives the customized capabilities like GPS satellite tv for pc locating, car facts recording and advertising player based on the taking function.
Generally speaking, we all judge the car Digital video recorder based on the stability, shockproof power, thermal stability as well as miniaturization. However, the different picked out models have different functions. The car DVR has got the following functions.
1. The professional power design. It complies with the needs of the working setting of the large supply voltage fluctuation and electric pulse hit.
2. Professional shockproof style and design. It’s lockable and also movable. It can provide the convenient data back-up function.
3. This embedded operation system. It’s stable and hard crash machine.
Several. It supports multiplex video and audio input. The real time monitoring and producing are realized.
5 various. Video recording in addition to quick checking operates.
6. It has the playback quality loss alarm operate.
7. It sports ths large capacity hard disk drive. It’s plug in addition to play.
Except for the essential functions, the car digital video recorder should have the strong expansibility. It can provide unique expanding functions regarding user’s needs. It can record the driving a car process. The real some time and two way information indication function can help you know the monitoring operations. The car entertainment function can realize film playback. It can be used for you to broadcast the advert and recreation program.
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