babudpoa

Hi, I am having a billiard parlor, and i need a simple tool to find out how many racks has been played in a day, I checked some sensors available to detect obstacle (ball rack) but i am confused by their technicalities. can anyone give me an idea with which i can find out how many racks has been played. (just how many times the ball rack has been kept on the table) thats all i would like to know. thanks and cheers babu