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The purchase of dashcam

Return ListSource:Shengtai Date:2020.09.02 Read:0

During the purchase, product parameters should be analyzed to analyze the shooting Angle, video resolution, compression format, cache, whether the video can be turned off manually, emergency video recording, not to interfere with other automobile electronic products, whether the card should be equipped, etc.

Camera Angle

The camera Angle of the dashcam is mostly around 100 degrees, which can basically ensure the shooting of both sides of the vehicle in the lane. Of course, it's better for the owner to choose the biggest camera Angle possible, but it also costs more money.

Video resolution

In general, when the video resolution is 1280*720, the license plate of the car in front can be seen clearly, while the license plate of the next lane is relatively blurred. In addition, the recorder's CMOS chip photosensitive ability and the quality of the glass outside the lens. It is directly related to the effect of its shooting at night.

Compressed format

Most data recorders use H.264 compression format. Not only does it take up more storage capacity, but it also requires higher speed of memory card, otherwise it is easy to lose frames and affect the compatibility of memory card data recorders. The size of the 1-minute fragment compressed by H.264 with 720P resolution is about 60MB. For car owners, a reasonable choice of record interval time and capacity is conducive to timely forensics when accidents occur. Generally speaking, it is advisable to choose 1 minute as the interval time.

The cache

Choose as large a cache as possible for smoother video and better memory card compatibility.

The night vision effect

The night vision effect here refers to the low illumination performance of products. Excellent products are not those with LED lights or infrared lights. No matter how strong the supplementary light is, it will not be able to shine on the road, and it will reflect on the front glass. Keep in mind that the products with tinted lights are all made by shanzhai manufacturers, just to fool confused buyers with a bunch of hype.

The tape open

If you can't turn it off, it's not good for the privacy of the car, and you say something, and it's all on tape, you might have a very awkward situation. The recorder produced by normal brands on the market has the function of one-button silence.

Emergency video

Based on the aforementioned features of cycling video, if an image is important but subsequent videos have to be shot, the previous important videos will be automatically deleted. There is an emergency video design. If you have an important image, you just need to press a key manually, which will force you to save the video and not delete it automatically when the card is full. Automatic emergency video is a gravity sensor that automatically protects the video from being deleted when it is monitored for violent vehicle vibration. This feature can be useful in the event of a collision.

Shielding measures

Copycat products are designed to reduce costs without any shielding measures, there is no rigorous testing, will interfere with GPS navigation, remote control, radio, tire pressure gauge and car computer and other automotive electronic products, when the impact is huge.

Deserve to card

Because the video files recorded by the dashcam are very large, high-definition views

Dual-lens shooting reduces the frequency of image edge distortion (source: Network) up to nearly 100 megabits per minute, so the speed of memory card writing is very demanding. The low speed calorific dash CAM can cause a crash. Domestic market sales of flash CARDS mixed, the same card, high quality chip can be repeatedly written more than 100,000 times, poor quality only about 2000 times. Generally recommended buyers friends with the original original card more than CLASS6.

operation

Buy an easy-to-use, intelligent dashcam.

The effect

After receiving the auto data recorder, you can try it under various conditions. Once it is tested, it will be more safe and reliable to use.

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