JavaLaurence Posted April 30, 2014 at 03:17 PM Share Posted April 30, 2014 at 03:17 PM A few weeks ago I had the idea to count the cars passing in our street using some TF magic. Initially I thought maybe one of the Distance IR/US would work, but quickly realised that the cars would be out of reach of the detection range. Then I thought, "Sound Intensity" ? A passing vehicle produces neat peaks of noisy sound, and this ought to be enough to create some counting application. A couple of days of software tinkering, and it works ! Screenshot attached. It's far from perfect: a passing tractor was counted as 3 vehicles, and the occasional car that glides past really silently doesn't register at all. But so far, out of the 50 counts I'd say that 47 are real. PS. I bought 2x Sound Intensity, because I was hoping to extract vehicle speed too... that's next. Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.