Car DVR can open a new concept of mobile storage monitoring?

In the early 1980s, people will have a sense of vehicle control, and begin installing video equipment in the car, and later with the development of science and technology, giving rise to a simulated car video recorder, the VCR via analog Way intended to signal the operator to record and store the vehicle, so that the computer can not be parameter settings, manage and query, but due to the limited time image recording tape, in the course of operation of the vehicle but also constantly changing Tape, which inevitably brings trouble for the storage ...... So, car DVR will come into being.

The so-called Car DVR, which uses standard 1U architecture, installation at the location of the radio or CD player, buses, and access 1-4 road image to the vehicle to monitor the situation and video compression algorithms currently used in car DVR mainly for MPEG4 and H.264.

Car manufacturers have applied for such embedded DVR played a nice name, MDR or MVR (Mobiledigitalrecorder or Mobilevideorecorder). Thus, "Mobile (mobile)" became the biggest difference with the ordinary Car DVR DVR. It is because of this mobile car DVR with Nature, they provide good conditions for vehicle safety monitoring in the process of moving.

Is not an ordinary car can be used for surveillance DVR? The answer is no. While ordinary DVR as embedded systems, but car DVR technology is more complex than ordinary DVR, needs to solve The key is different. Because the vehicle during the move, will inevitably suffer shock, dust, power supply such problems, which are destined Car DVR DVR application environment even worse than normal.

Harsh vehicle environment, multi-technology integration "stable" Caosheng Quan

It is understood that, in order to ensure that the bus can still achieve smooth running store, manufacturers are on-board DVR technology including enhanced shock, voltage current, heat, wireless transmission. Perfect integration of these technologies are designed to further enhance the stability of DVR storage.

Damping

Due to the different condition, road conditions, shockproof technology has become a basic requirement for Car DVR, which includes the whole of the many facets of shock absorption, cushioning the hard drive rack, hard disk shock, etc., to achieve the overall damping Car DVR treatment.

In these shock sessions, hard disk shock is a top priority. This is due to the DVR for the most part is easily damaged hard drive, if the hard disk once damaged, can not be stored inside the case, so the hard drive shock problem is particularly important.

For the current damping method currently used mostly on the market springs, rubber shock pad as a structural material, although in the vertical direction of the force can play a role, but actually in the driving state (especially In bad road conditions) its vibration direction is irregular, prolonged use will inevitably lead to equipment failure. Springs with rubber pads actually can not absorb vibration energy, but this energy will be stored, when up To a certain extent, it will result in greater rebound. According to him, at present there is a rubber mat in the fuel capsule practice, mainly using compressed air, oil is smaller than advantages to achieve better damping effect.

In addition, some manufacturers have carried out the hard suspension suspension suspension suspension or chassis design for car DVR, is the hard drive or the entire chassis to achieve "floating" state, in order to achieve damping effect.

Power Supply

In addition to damping, car DVR Another important technology is a stable power supply. As the vehicles in the process, the vehicle will brake, climbing, ignition and other actions, such behavior would make the output voltage of the vehicle fluctuations of different magnitudes, it is easy to cause burn-board equipment and, therefore, must have own car DVR Wide input voltage capability to adapt to this change in voltage.

Heat dissipation

It is understood that the bus during operation, there will be big changes in temperature characteristics, many buses are installed under the car DVR driver's seat or the seat in the top of the enclosed space, which the use of performance-car DVR put forward higher requirements.

However, insiders believe that, because the state and local governments on the GPS positioning systems have specific requirements and related documents, many transport companies are mandatory equipped with GPS positioning system, so the added GPS Car DVR functions, is more in line with the bus needed.

Future: Let the store smarter

It seems from the above description, vehicle DVR seems to have more perfect. However, the only constant innovation in order to make development faster car DVR market. I learned from the interview in the current manufacturers have already begun to consider the on-board intelligent processing DVR certain functions, such as increased recognition, people counting, feature recognition and other functions, to increase the usefulness and relevance of in-vehicle systems, and make storage more intelligent.

When violations occur after the car, the police only through careful observation of the crime's face, dressed, etc., as the case who appears again to be arrested based on the judgment, such an approach is a waste of time, nor Flexible enough. Moreover, the center managers at each viewing video playback or real-time video streaming, it will inevitably be missed case of certain events. So, for the Car DVR implanted "nervous system", instead of the human brain to make it into Line analysis, judgment, will be the future direction of development.

For the analysis of the advantages of the smart technology, intelligent analysis techniques using computer powerful data processing capabilities, the video screen for high-speed analysis of massive data, information filtering out the user does not care, just to provide useful information to monitor those key, which can effectively save network bandwidth, greatly enhancing the available network bandwidth.

More importantly, the intelligent video technology can be analyzed in real-time or recorded video streams, thus detect suspicious activity, event or pattern of behavior, you can make video surveillance after searching the suspects engaged in converting an incident was to stop crime adjunct occurred.

Intelligent play an increasingly important role in the future of the Car DVR storage applications, manufacturers are based on user demand will continue to develop more innovative technologies, in order to protect the integrity and availability of data recording