Professor Chen is one of my expert.
His knowledge of electronic helped me a lot on making the information system.
He gave me few options of making a information system when I told him what I want to make.
- motion sensor
- micro-switch
- magnet
- ultrasonic
At the end, I choose ultrasonic for my solution of the information system.
Ultrasonic is a distance sensor that some parking lot will use.
I have research a lot of parallel study of parking lot, and I found ultrasonic is a good way for my solution.
here is a link of the parking system website:
http://qedfactory.com/pgs_space_counter.html
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