How to choose a recorder? How to choose a recorder

1. What is a dash cam Dash cam, as the name suggests, is an instrument that records the surrounding state during driving, which is similar to the black box of an aircraft. A dash cam is actually a camera that is fixed on the car and works all the time. Second, the use of the dash cam 1

Evidence of the accident With real-time video playback, the accident process and the determination of responsibility are very clear, and the other party can no longer deny it. 2.Learning to drive Novices often mishandle various incidents in the process of driving.

Because it is in the middle of the car, the accompanying instructor cannot analyze and explain in detail, so as not to affect the subsequent driving. With the video, you can repeat it afterwards, analyze it in detail, draw inferences from one another, and explain a problem thoroughly, which is of great help to improve driving skills. 3.

Record the scenery Self-driving travel, there are many beautiful scenery along the way, but they are all fleeting. With the video, it can be slowly reminiscent and stored for a long time. 3. Functional requirements and parameters of the dash cam The dash cam has a basic camera recording function, and at the same time, it must meet the long-term use of the fixed car and work automatically.

Functional parameters Dash cams are common with a diagonal viewing angle of 90 120 degrees. The wide-angle lens with a large angle can shoot a wider range, and can capture both sides of the front of the car into the frame, which is more comprehensive. The 150-degree or even 180-degree wide angle promoted by some businesses is generally just a gimmick to increase publicity.

The video frame rate can generally reach 30 to meet the requirements. **There are many kinds of data encoding, and low-end products often use M-JPEG encoding, which has a large amount of data and poor image quality. The use of encoding can maintain high image quality while having a large data compression ratio, and the video file of the same length is smaller and the effect is better.

The dash cam must be able to support cycle recording. When the memory card is full, the earlier files are automatically deleted, and the last image is retained. Dash cams always save video files in segments.

There may be a gap of several seconds between time periods that are not recorded. This will risk losing critical content. High-quality high-speed memory cards can be used to reduce the number of seconds that slip, while the new dual-core recording can achieve no leaks.

The dash cam must be able to automatically turn on and record automatically with the ignition of the car. When the car turns off, the recording will automatically stop after a few seconds and save the file without data loss. In order to reduce unnecessary data recording, dash cams are generally able to support motion detection.

Automatic recording occurs when the image in front of the camera changes, and automatically stops when there is no change in the remaining image. The dash cam with a display screen can play back the video at any time without the help of other equipment, which is very helpful for on-site emergency response. The display also allows you to set up functions and adjust the time on board at any time.

In other aspects, it must be able to use the on-board power supply to record while charging, have a screen timestamp overlay function, and support the memory card capacity to be as large as possible, etc.

A dash cam is an instrument that records the image and sound of the vehicle while driving. After installing the dash cam, it can record the best images and sounds of the whole process of driving, which can provide evidence for traffic accidents.

Hello, dash cam. Just a requirement to record clearly, there is no small problem, about 500 yuan or so to use.

Dash cam. Just record a clear request.

A dash cam is a device that contains the image and sound of the vehicle while it is on the road. After installing the dash cam, it can record the best images and sounds of the whole process of driving the car, which can provide evidence for the accident of the traffic base.

Tip 1: Look at the price.

The general price of the more cost-effective is 300 to 800, and if there are less than 300, the effect is not good, especially at night. Of course, there are several thousand, and for us working people, we can't afford to hurt Therefore, I suggest that the landlord buy 300 to 800 well

In addition to the price, the appearance and size are the two most important points when choosing a dash cam. Due to the different size and position structure of the interior mirrors of each car, not all recorders are suitable for their own car.

Tip 2: Look at the appearance.

Due to the different size and position structure of our car rearview mirrors, as well as reducing the impact on the driver's line of sight, I still recommend choosing smaller products as much as possible, and one point is that many beautiful and larger recorders are not easy to install between the rearview mirror and the windshield, so when we buy a "black box", take a good look at the shape and reserved space of the inner rearview mirror of our own vehicle, and we must know the size.

Tip 3: Look at the picture.

There is also the mainstream recorder has LED fill light or infrared fill light to solve the problem of insufficient light at night, but the LED fill light will cause a larger blind spot when turned on at night Therefore, I still recommend that the landlord focus on the recorder with infrared night vision light.

Tip 4: Look at the function.

Tip 5: Look at the operation.

Some dash cams have a less "user-friendly" interface. If you are such a "digital rookie", you should pay special attention to whether the menu interface of the dash cam is easy and convenient to use.

In 2020, there are no new functions on the market for the time being, mainly based on wifi interconnection and rearview mirror flow**, 360-degree reversing image, most products are still based on Novatek chips, Ambarella chips are gradually eliminated by the market, mainly because of poor functional scalability, the chip does not support dual lenses, and Novatek chips support front and rear dual recording, which can be more comprehensive in driving.

With the reshuffle of the market in recent years, many brands have also been eliminated, such as Zhongheng, Shilianke, Kailide, Wannian Ship, Jiluke, LeTV, etc., these brands are basically not seen on the market at present, and the brands that can survive have their own advantages, such as lipstick Ji, Xingkewei, 360, HP, Lingdu, Yunlu, Xiaomi, Dingdingpai, Pai Dog, Ren E Xing, Hikvision and so on. Among them, Lipstick Ji, Xingkewei, and Yunlu are mainly engaged in foreign markets, and the products are all high-end routes, and the quality control is relatively good, but they are all high, and the domestic popularity is still relatively low.