METHOD FOR DETECTING EXHAUSTION OF RAW MATERIALS IN VENDING MACHINE WITHOUT USING A SENSOR

摘要

PURPOSE: A method for detecting exhaustion of raw materials in a vending machine without using a sensor is provided, thereby decreasing the production cost of the vending machine and informing the exhaustion of commodities correctly to the customers. CONSTITUTION: The method for detecting exhaustion of raw materials in a vending machine is characterized by inserting raw materials when the vending machine meets selling conditions and is ready to sell commodities; setting the number of cups to be sold through a selling number setting part(600); calculating the number of remaining cups by comparing the cup number sold and the cup number inserted; and continuing the selling of the vending machine when the number of remaining cups is not 0 and stopping the selling of the vending machine when the number of remaining cups is 0.