- Brand: WMA / but the public security
- Model: TF
- Intelligence Type: Other
- Color Classification: 64G 32G 16G 8G 8G for 16G 8Gr for 32G 8G for 64G
What is the actual capacity of 32G?
Details can look at the introduction of Baidu know: http://zhidao.baidu.com/question/531511792.html (copy link to the browser which opens)
32G memory card CIF mode (352 * 288 resolution) to save 5 to 6 days recording.High definition VGA mode (640 * 480 resolution) can be stored for about 80 hours.
16G memory card CIF mode (352 * 288 resolution) to save 3 to 4 days recording.High definition VGA mode (640 * 480 resolution) can be stored for about 40 hours.
8G memory card CIF mode (352 * 288 resolution) to save 1 to 2 days recording.High definition VGA mode (640 * 480 resolution) can be stored for about 20 hours.
The above data are average, the specific storage time also subject to the actual environment, dynamic images and recording will affect the storage time.The device automatically generates a 30 minutes video, full of storage will be automatically covered by the cycle, one by one, the most recent storage video.
Note: The camera than the average mobile device, it needs 24 hours on the memory card to store work, if
Once the memory card has a problem, it will cause the device to halt, such as failure to stop! That is to say, perhaps your card in the mobile phone and other general equipment
With no problem, but does not mean you can perfectly compatible with the camera. The above description please familiar! Thank you!
After purchasing the memory card, careful people will find that the memory card in the operating system capacity and official nominal capacity does not match, should be less than the nominal capacity, the greater the capacity the greater the difference.
Nominal 512MB of memory card, the operating system displays only 490MB or so;
1GB of memory card is only about 980MB;
While the 4GB of memory card is only about 3.7GB.
This is not a manufacturer or distributor to deceive consumers shoddy, but the memory card manufacturers to calculate the capacity of the operating system and the calculation method of different units conversion relationship caused by the difference.
As we all know, is used in the computer binary, resulting in the operating system for the calculation of the capacity is 1024 per 1024, 1024KB for each 1KB, 1KB 1024KB, 1GB;
The memory card manufacturers in terms of computing capacity is 1000 per 1000, 1000 bytes per 1KB, 1MB per 1000KB, 1GB per 1GB, the difference between the two systems caused by the memory card capacity 'shrink '.
Take the 4GB memory card as an example:
Vendor capacity calculation method: 4GB = 4,000MB = 4,000,000KB = 4,000,000,000 bytes
Converted into an operating system Calculation method: 4,000,000,000 bytes / 1024 = 3,906,250KB / 1024 = 3,814.697265625MB = 3.8GB
At the same time in the operating system, the memory card is formatted, so the system will take up some space on the memory card, provided to the system files, so the operating system shows the memory card capacity and nominal capacity will be different.
We usually use the hard disk and other types of storage devices are calculated in this way the capacity, the greater the capacity will be greater deviation, such as 40GB hard drive is only about 37GB, this is the normal capacity.