Analysis of dash cam from five technical points

People pay more attention to the safety of driving, many drivers are beginning to plan to provide their seats with a high-definition dash cam, but everyone in the process of buying a variety of question. The following is on the dash cam

1, choose 1296p or 1080p?

Using for avoiding racketeers, 1080p dash cam is enough, the higher definition will reduce the life of the memory car and reduce saving time.

In addition, due to the average of each pixel point into the light reduced, night vision of 1296p effect is poor.

We must have experience in this respect: watching 720p films on TV is already very clear. Even if we rise to the 1080p source, the difference in definition is not obvious. But 1080p has twice as much data as 720p and 1296p as much as 1080p: the same TF card not only reduces the amount of time that can be recorded by 30%. It also greatly increases the number of rewrites and reads of the card and shortens its useful life (if someone tells you that the recording time is not shorter: the amount of data has not increased, how can the clarity be improved.)

Similarly, movies with 24 frames per second are clear and fluent, raising 30 frames to 60 frames, which also reduces the time available for recording and shortens the life of the card.best front and rear dash cam focus on practicality and durability, not all the parameters of the higher the better.

2, the pixel of some brands is more than one thousand million

The number of pixels to the 1080p image is exactly 2.1 million(1920 multiply by 1080 equal to 207 million, and the edge of the sensor will be wasted). with more pixels, the sharpness increase is bot obvious, but night vision becomes worse as the average of light per pixel decreases. Focus on overall performance, not puzzled by the number of sizes.

3, Why do you not install with a sucker?

sucker easy to fall off in collision, exposure or winter, causing driving danger. in fact, you can simply use this to determine whether the design of the recorder bought is professional. unlike navigation, the recorder is hung there throughout the year. Restless, can you feel safe? The true 3M VHB adhesive adheres firmly, does not damage the film when removed, does not leave the residual glue. Virgo students can first post a static paste, and then stick the scaffold on the electrostatic paste, easy to move around.

4, parking monitoring for 24 hours

The new car is easily attracted thieves, or be scraped by someone, so need round-the-clock protection.However, the existing products of parking monitoring and effective protection time is short, power consumption, damage battery. If there is a need for anti-rowing, buy a recorder with all-day monitoring: the effective protection time is three times longer than that of the parking monitor, but the power consumption is only 20% (one month without driving is no problem). Regular parking surveillance, you look at the video the next morning, only after 2: 00 in the morning, the previous is all covered!

5, ADAS intelligence driving assistant

The dash cam can't get the news of the driver hitting the turn signal, and the lane deviation alarm issued when changing the lane will annoy people. In addition, speed is an important basis for judging the number of seconds left before you hit the car in front of you. If the recorder itself does not have a GPS, the mobile phone's GPS is extremely power consuming, no speed this key, the car collision warning is not reliable. So, I'm kidding you. But people are not wrong, two in one, in other words, it final left only one function.