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The small Micro SD card is suitable for driving recorder. It is small but with large capacity
Driving Recorder Memory Card (TF Card) Explained
The memory card used in driving recorders, commonly referred to as a TF card (an abbreviation for Trans-flash Card), is a rewritable, high-speed storage device that supports hot swapping. It plays a crucial role in storing the vast amount of data captured by driving recorders.
Features of Driving Recorder Memory Cards
The functionality of driving recorders is well-known; they capture and record the surroundings during driving. While high-quality footage is essential, the storage card’s capability is equally important. A reliable storage card is akin to a sturdy saddle for a fine horse, ensuring seamless operation. Let’s delve into the specifics of driving recorder memory cards.
Micro SD Card
Currently, the majority of driving recorders utilise Micro SD cards. Previously known as Trans-flash Cards, Micro SD cards are part of the SD Card Association. Their compact size (15x11x1mm), rapid transfer speeds, and support for hot swapping make them widely used in mobile phones, navigators, and various automotive electronic products.
Memory Card Capacity
Driving recorders on the market typically support Micro SD cards with a maximum capacity of 32GB, though some recorders accommodate 64GB, and a few can handle up to 128GB. The most common capacities are 8GB, 16GB, and 32GB. At a standard 1080P resolution, an 8GB memory card can store approximately 180 minutes of video, which may be insufficient for extended drives. Consequently, memory cards below 8GB are becoming less common.
Is Capacity the Only Important Factor in Memory Card Parameters?
Certainly not. Driving recorders are high-speed devices that require both storage and read/write speeds. The Class system is used to rate Micro SD card speeds, with classifications ranging from Class0 to Class10. For instance, a Class2 card has a minimum write speed of 2MB/s. Higher numbers indicate faster speeds. To ensure smooth video storage without data loss, it’s advisable to use memory cards rated Class6 or higher in driving recorders.
Circular Recording Function
The circular recording feature addresses the storage limitations of driving recorders by continuously overwriting the oldest footage when the card is full. This ensures continuous recording without manual intervention. However, users often worry that this function might overwrite critical accident footage. Modern recorders typically have a G-sensor that triggers an emergency mode, locking and separately storing footage during incidents to prevent overwriting.
Storage Capacity and Recording Time
With an 8GB memory card at 1080P resolution and 25 frames per second, approximately 180 minutes of video can be recorded. For longer recordings, larger capacities such as 32GB are recommended, although some recorders support up to 64GB or 128GB.
Editor’s Summary
The introduction of TF cards and circular recording functionality has revolutionised driving recorders. While capacity is important, speed and other features are equally crucial. Circular recording offers an effective solution to manage storage costs, making driving recorders more accessible and popular.
Comparison Table: Memory Card Capacity vs. Recording Time
Memory Card Capacity | Approximate Recording Time at 1080P (90MB/min) |
---|---|
8GB | 180 minutes |
16GB | 360 minutes |
32GB | 720 minutes |
64GB | 1440 minutes |
128GB | 2880 minutes |
Comparison Table: Memory Card Class Speeds
Class Rating | Minimum Write Speed |
---|---|
Class0 | Undefined (Typically Slow) |
Class2 | 2MB/s |
Class4 | 4MB/s |
Class6 | 6MB/s |
Class10 | 10MB/s |
Conclusion
In conclusion, Microsd card, MMC card, and CF card each have their own unique features and advantages. Microsd card is the most convenient and widely used option, with a great balance of capacity, compatibility, and cost. MMC card, with its extremely small size, is still used in some specialized applications. CF card, on the other hand, offers high performance and reliability, making it a favorite among professional photographers. When choosing the right storage solution, it is important to consider your specific needs and the requirements of your devices.
Overall, understanding the characteristics of these different storage formats can help you make the best choice for your digital storage needs. Whether you need a small and affordable option for your smartphone or a high-capacity and fast card for your professional photography equipment, there is a storage solution out there to meet your requirements.
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