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.
New Technology for Preventing Vegetable Infection with Viral Diseases
Vegetable virus disease is a devastating disease. Once vegetables become susceptible, they cannot be cured. The traditional method of prevention and treatment is to find out that the diseased plants must be immediately eradicated, and lime powder is used to disinfect the diseased points, and at the same time, pesticides such as aphids, whiteflies, and tea planters that spread viruses are eliminated by spraying. Here is a new technology that can prevent the occurrence of viral diseases: inoculation of plant virus vaccines to improve the immunity and antiviral capacity of vegetables. Specific approach: When sowing or transplanting vegetable seedlings, soak the seeds with a 600-fold plant virus vaccine aqueous solution for 8 minutes - 10 minutes, collect and drain the water, wash with water 2 times - 3 times before sowing, or Roots of seedlings are immersed in the liquid for 3 minutes to 5 minutes, and the roots are covered with liquid medicine before planting. When the seed germinates out of the ground to form seedlings or after the seedlings survive, they are soaked once with 600-fold plant virus vaccine solution, and each plant is sprayed with 1 kg - 1.5 kg and sprayed 2 times - 3 times each time. 7 days - spray 10 days, evenly spray all the leaves, it is appropriate to start dripping leaves. In addition, during the flowering period of tomatoes, peppers, and eggplants, and the Baoxin period of Chinese cabbage, it is the peak period of viral disease, and 600 times of plant virus vaccine solution must be sprayed once more. China Agricultural Network Editor
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