- Define the type of DVR
- Important features of video recorders
- What else can avtovideoregistrator
Define the type of DVR
Avtovideoregistrator there are two types: single and multi.
Is a small independent device with a video camera that can shoot in one direction. Low price, good video quality and very economical in energy consumption. Easy uncomplicated mounting easy to install gadget on the windshield and remove as needed.
If you want to be fully prepared and monitor everything that is happening around, then this DVR will be most welcome. The ability to connect up to four video cameras will allow to control all four sides, no more worries about blind spots, and intelligent ability of the Registrar will help to navigate the road. However, this will require large expenditures of energy, the price of such devices is significantly higher and the installation of numerous wires will cause the head to break. But it is fixable. Multi-channel DVRs fully justify its cost, and the development of wireless communication systems will eliminate the web of wires.
Important features of video recorders
The main purpose of DVR is to remove the image, and the clearer and more informative the image will be, the better. In that case, if the angle is higher, then the camera lens can capture not only the lane of your car, but also neighboring extreme bands. It is worth remembering that too large an angle will distort the image. The optimal values considered to be from 90 degrees to 140 diagonally or horizontally 80-100. Maintaining good quality of the video, and all the necessary objects into the camera lens.
Features of the DVR is affecting the quality of the video
To judge the quality of the video allows recording resolution. The higher the resolution, the more detail we can look at the pictures, to catch small nuances and reliably detect and characterize moving near the car. There are autovideocreator with resolutions 640×480, 1280×720 and 1920×1080 pixels (permits and intermediate values). On the market you can find a cheap recorder with high quality video, but it should be remembered that this is achieved through digital zoom.
Another characteristic quality of the image is flatten. Distinguish between progressive (1080p) and interlaced (1080i). Typically, the first allows you to make more quality video.
If the answer to the question — how to choose a video — pay attention to the sensitivity setting of the camera. The higher the value, the better the video will turn out in low light.
The fact that the human eye is able to combine individual frames into a movie when the recording speed of 24 frames per second, a fairly well-known. This is necessary, but not sufficient. Modern DVRs are capable of recording at 30 frames per second and more, allowing you to get a good video when the car and buy a device with smaller value is not recommended. Easy-to-use devices with adjustable recording speed. This feature is useful, for example, during night Parking.
The video codecs automoderation
All captured videos are stored on the memory card of the video recorder. Needless to say that memory is limited, and to ensure that the information is preserved for a longer period, resort to file compression to save space on the map. To cope with such a difficult task help systems for special programs. The so-called codec allows to compress a video file to a minimum size and the image quality is the same. In modern automoderator use such well-known compression formats, MJPEG, MPEG, MPEG-4 and H. 264. The latter is considered more compact and preferred.
Storage of information
When choosing a DVR, it is recommended to give preference to that which supports memory card. More accessible are considered the SD card. Having the same capacity, and MicroSD, they are much cheaper.
Avtovideoregistrator primarily designed to help the driver, so when purchasing, pay attention to its dimensions. The device must be compact, not too edgy and not to limit the review at the movement. The most convenient mounting is considered to be a suction Cup. These DVRs do not cause difficulties during installation, it is possible to find the optimal location that is convenient for you, with the right angle, and to make installation.
Attachment-based self-adhesive tapes are also present on the market, however, it is worth considering whether you need a trace of glue in the car.
Video recorder with display in the cabin of the machine
What else can avtovideoregistrator
DVRs are complex electronic devices, and in addition to its basic functions, some instances even possess a number of useful features. Most importantly, do not forget to determine the functionality. Decide what extra options you will find useful.
DVRs with built-in display allow you to quickly view the footage. Such a need arises in the resolution of disputes on the road. Such a clear and timely demonstration of your innocence is unlikely to interfere.
There is a possibility to do without the built-in monitor. In this case, the DVR must be equipped with a dedicated output to an external screen.
Cyclic video recording
It is highly recommended to choose a driving recorder with the function of cyclic recording. Due to the limited volume of the memory card have to watch it fill. For you with this work to make DVR itself. It records videos in 2-15 minutes and saves them as separate files. As the memory is full, old information is deleted, thereby freeing up space for new. This is the cyclical operation of the device.
Date and time
It is difficult to imagine modern electronic gadgets without a show date and time. For the DVR overlay such information is especially important, otherwise, in the event of unforeseen circumstances, your device will be invalid and will not be able to serve as a proof or a fact.
The movie footage with sound can help to create the full picture of what is happening.
Imagine that every time you get in your car, you need to enable and disable driving recorder. Of course, it’s a matter of habit, but there is always the human factor. At any time you can distract, interrupt, and you will forget to include automotive all-seeing eye. And according to Murphy’s law, this usually happens at the most inopportune moment. To avoid such troubles will auto turn on and turn off the DVR. Accordingly, by turning on the ignition — the unit wakes up, when killing the engine again goes into sleep mode.
In addition, the force included the Registrar without your help can built-in motion sensor. The need for such functions is controversial. It has not found wide demand in the Russian market.
Than not the camera…
Use a DVR as a separate independent device allows an internal battery. There are models that are able to survive without an external source of energy to two hours. Thus, from the data logger can be completely self-contained camcorder.
DVR Mio c GPS
Very useful, but still a rare feature of the DVR. Built-in GPS receiver-signal allows to determine the coordinates of the vehicle and the speed of its movement, tying these data to the video. Specially installed software will help you to navigate the terrain and fight on the map, you need a path to follow.
The IR aims to improve the quality of shooting at night. This solution offers some advantages, but generally does not solve the problem. The clarity of the image becomes slightly better as the quality of the recording in this range remains low.
We hope our article has brought some clarity in answering the question of how to choose a video. The final decision is always yours, because nobody knows what is right for you better than you do.