Traditional vending machine is how to sell things

A growing number of vending machines appeared in the streets, station, square, shopping malls and other public places. Often asked the author: a little, how the vending machine work? How does it automatically sell things? In fact, different kinds of vending machine, the working principle of difference is very big, the use of technology is also different, today I first about common coin vending machine working principle, namely traditional vending machine. This kind of vending machine mainly has three parts, respectively, the control circuit, coin, cargo shipping agency. Working process is as follows: 1, the customer to pay COINS or paper money and pay for currency and authenticity identification, if counterfeit, spit it out directly to refuse. In this process, coin machine will put the cash received information to control circuit. 2, customers choose goods by button or keyboard, control circuit is based on the coin to price in the information sent and received cash amount of contrast, the amount of adequate words will signal to the aisle shipping agency for shipment, insufficient amount through the fuselage LED digital tube tip amount is insufficient to the customer. 3, cargo shipping agency received shipment of control circuit of the signal, open motor drive the aisle spiral spring shipment. 4, after the completion of the shipment, if the amount received and product costing, shopping is over. If the amount received is greater than the commodity price, the vending machine for customer further operations, if customers continue to choose goods, the vending machine to continue the above process, if customers choose to change, main control circuit to receive the amount of money and commodity price to add and subtract, difference is sent to the slot machine, coin machine coin change according to the information from the main control circuit, until the end of shopping. In the process, if the vending machine is not connected to the Internet, all sales data exist local ( Not connected to the vending machine is now rarely) ； If the vending machine connected to the Internet, it can real-time sales data uploaded to the backend server, vending machine administrator can login account of the background management anytime, anywhere viewing the vending machine sales, management is more convenient.