Buy a 16g card for a driving recorder. The high-speed card records for a few seconds and then stops automatically and then automatically records. Sometimes the reason why it does not record is that the reading and writing speed of the high-speed card has not reached the requirements. Another possibility is driving. The recorder is set to a dynamic recording mode, which means that the driving recorder does not record when it is stationary. It can be set and modified to normal. The driving recorder prompts to use a high-speed memory card, which means that the current card cannot meet the needs of the recorder. The transmission, reading, writing and input speed are too low. It is estimated to be Class 4, and it is recommended to replace it with Class 10. Many people may not consider the memory card when they first purchase a driving recorder, and a large number of them may not even know that a driving recorder must be equipped with a memory card to use it. The memory card of a driving recorder is equivalent to the human brain, and almost all driving recorders require a memory card to be used. Generally, when purchasing a driving recorder, a memory card will not come with it. If you are careful, merchants may remind you to purchase or give away a memory card, so that we do not have to think about how to choose a driving recorder memory card. However, if the merchant does not provide a gift or directly tell us which card to buy, we need to buy it ourselves. Many users often buy memory cards but find that the driving recorder cannot write the scene, or cannot read the data after writing. This is caused by using a memory card that is not compatible with the driving recorder. Most driving recorders on the market now use TF, SD or SDHC cards. First, let's take a look at the differences between these three cards. 1. The TF card was originally named Trans-flashCard. It was officially renamed MicroSDCard at the end of 2004 and was invented and founded by SanDisk. Before the advent of MicroSD, mobile phone manufacturers used embedded memory. Although this type of module is easy to install, it has the problem of being unable to meet the actual needs of the trend - the capacity is limited and there is no room for upgrades. But why is the word "MicroSD" printed on the TF card we buy? That's because although the name has changed, everyone is still used to calling it TF card. 2. The full name of SD card is SecureDigital, which is translated into Chinese as Secure Digital Card. It is a standard for flash memory cards that is widely used in portable devices, such as digital cameras, personal digital assistants (PDAs), and multimedia players. It follows the SD1.0/1.1 specification. Since the SD card specified in the SD1.1 specification uses the FAT12 and FAT16 file systems, the SD card that complies with the SD1.1 specification can only reach a maximum capacity of 2G. 3. SDHC is the abbreviation of "SecureDigitalHighCapacity", which means "high-capacity SD memory card". SDHC is actually an upgraded version of SD card. It follows the SD2.0 specification and uses the FAT32 file system, allowing the SDHC card to reach a maximum capacity of 32G. Because the file systems of the two memory cards are different, the maximum capacity of the cards is different. Driving recorder memory cards are generally divided into ordinary cards and high-speed cards. Currently, memory card performance is divided into several levels, and different levels meet different usage needs. Class0: also known as C0 card, including Class2 and unmarked Speedclass; Class2: also known as C2 card, which can meet the needs of watching ordinary MPEG4 movies and digital camera shooting; Class4: generally a special card for driving recorders; Class6: generally suitable for Shooting with SLR cameras; Class10: Generally suitable for those who pursue perfection in card speed and meet the needs of higher-speed storage. The transmission speeds are: Class10>Class6>Class4>Class2>Class0. The common cards we use in daily life are C4, C6, and C10 cards, which represent random write speeds of 4MB/s, 6MB/s, and 10MB/s respectively. A high-speed card will make the dash cam run smoothly. 1. If your driving recorder is 480P, you can use the most common TF card; 2. If it is a 720P machine, it is enough to use a C4 high-speed card; 3. If it is a 1080P machine, you must use C6 or above. Memory card; 4. If you want to have smoother effects, it is recommended that you use a C10 memory card.
As long as the capacity of the driving recorder memory card does not exceed the capacity of the device, you can choose according to your actual situation. Under normal circumstances, a driving recorder generates about 100MB of video files in one minute. Let’s take a look at the relationship between capacity and shooting time. There is no need to pursue large capacity for the driving recorder memory card, as long as it is enough. Because most driving recorders have the ability to loop shooting, it is best to set the loop shooting time to a few minutes. Because the time is too long, when the previous file is overwritten after the record is full, it will easily affect a long file. If the time If it is too short, it will be troublesome to find records. The performance of TF cards and SD cards are basically similar, but there is a difference in size. When choosing, we try to choose a TF card or SD card with a larger cache, so that the video will be smoother, the compatibility will be better, and most importantly, there will be no missing seconds.