4G Mini Camera Structural components
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The main structures and components of the camera can be listed from the working principle of the camera:
1. LENS
Lens structure, consisting of several lenses, including plastic lens or glass lens
2. Image sensor
It can be divided into two categories:
CCD (charge couple device): charge coupled device
CMOS (complementary metal oxide semiconductor): complementary metal oxide semiconductor
3. Digital signal processing chip (DSP)
There are many DSP manufacturers, such as VIMICRO 301P/L, SONIX 102/120/128, ST (Logitech LOGITECH's DSP provider), SUNPLUS (SUN+focuses on the development of CIF and VGA for single chip, but the image quality is average), PIXART (original phase), PAC207, SQ930C, etc.
4. Power supply
Two working voltages are required inside the camera: 3.3V and 2.5V. The latest process chip can use 1.8V.
Some cameras also use video transmission lines for synchronous power supply without external power lines.
1. Ducklings (days 1-25). Feed requirements (%): crude protein 20%, crude fiber 3.9%, calcium 1.1%, phosphorus 0.5%. Reference formula (%): corn 50%, vegetable cake 20%, broken rice 10%, bran 10%, fish meal 7.5%, meat powder 1%, shell powder 1%, salt 0.5%. 2. Middle Duck (26-45 days). Feed requirements (%): Crude protein 17.5%, crude fiber 4.1%, calcium phosphorus 0.5%. Reference formula (%): corn 50%, bran 12%, broken rice 10%, salt 0.5%, vegetable cake 5%, large (small) wheat 17%, fishmeal 4.5%, shell powder 1%. 3, fattening formula. Formula 1 (%): 35% of corn used in the previous period and 26.5% of flour. Rice bran 30%, beans (fried) 5%, shell powder 2%, bone meal 1%, salt 0.5%; later use corn 35%, flour 30%, rice bran 25%, sorghum 6.5%, shell powder 2%, bone meal 1 %, salt 0.5%. Formula 2 (%): corn 35%, flour 26.5%, rice bran 25%, sorghum 10%, shell powder 2%, bone meal 1%, salt 0.5%. China Agricultural Network Editor
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