Initial debugging of NXP beacon camera (avoid detours)

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Initial debugging of NXP beacon camera (avoid detours) [Copy link]

 

Time flies so fast!!!

Today I officially started debugging the beacon confrontation car. I worked for a month without knowing anything, and ended up not knowing anything after a month. I always dreamed of becoming a big shot in one go... But it turned out to be impossible. Today I asked a senior from the 2014 class, and he said we have to do it step by step, and the fastest way is to do it step by step.

I plan to start with the camera. I compared many cameras before, and finally decided to use the Shanwai Eagle Eye Camera OV7725.

Step 1: Focus the camera.

Use A4 paper to stick a Chinese character “大” on it. Place the camera 1 to 2 meters away from the paper. Slowly rotate the front end of the camera until a clear Chinese character “大” appears on the screen.

Step 2: Modify the resolution.

What is resolution? You can open the screen resolution on your computer desktop. The recommended resolution for computers is 1366 X 768 (recommended). This resolution is more comfortable to look at. After trying to reduce it, I found that the screen became smaller. The resolution needs to be modified according to the actual situation. I chose to use a resolution of 60 X 80.

Step 3: Adjust the number of frames. Do not refresh the image too quickly. I chose 112 frames.

Step 4: Adjust the threshold.

Posted by primary school students on 2013-7-2 19:56 file:///C:\Users\ADMINI~1\AppData\Local\Temp\ksohtml\wpsB8CC.tmp.png CNST indirectly modifies the threshold The smaller the value of CNST, the darker the image