Note to Coin Exchanger with Fake Note Detection

Now a days, we have to suffer a lot for the change in various public places such as railway station, bus stop, parks, mall, also in rural areas where the coin telephones are used. The need of coins in such places is more than the notes, so we thought to develop an exchanger machine which will dispense a coin when note is placed. The main part of project is to check whether the note is fake or real by using MATLAB code where we used RGB to HSI conversion. In this the camera will take the picture of note and MATLAB will compare the given note with the reference note. The output of MATLAB is given to the microcontroller through the USB to serial converter through which the controller will know whether the note is real or fake. If the note is real then Controller will send the command as 0 or 1 to the relays and the output of relay given to the solenoids and through the container coin will dispensed for example, if note is of RS 10 the coins will dispensed as required and if note is fake then it will not. We have implemented a fake note detection unit using RGB module.