How do traditional vending machines sell things

More and more vending machines appear in public places such as streets, alleys, stations, squares, and shopping malls. Some people often ask Xiaobian: Xiaoyi, how does the vending machine work? How does it sell things automatically? In fact, the working principles of different types of vending machines are very different, and the technologies used are also different. Today I will talk about the working principle of the more common coin-operated vending machines, which is the traditional vending machine. . There are three main parts of this type of vending machine, which are control circuit, coin acceptor, and goods delivery mechanism. The working process is as follows: 1. The customer puts coins or paper money into the coin acceptor, and the coin acceptor recognizes the value and authenticity of the coin. If it is a counterfeit coin, it will be directly spit out and rejected. In this process, the coin acceptor will pass the received cash information to the control circuit. 2. The customer selects the product through the button or the keyboard. The control circuit will compare the price and the amount of cash received based on the information sent by the coin acceptor. If the amount is sufficient, it will send a signal to the freight forwarding agency to ship the amount. If it is not enough, the LED digital tube on the body will remind the customer that the amount is not enough. 3. The cargo transport mechanism receives the shipping signal from the control circuit and turns on the motor to drive the spring spiral cargo transport to rotate for shipment. 4. After the shipment is completed, if the amount received is equal to the selling price of the product, the shopping ends. If the received amount is greater than the price of the product, the unmanned vending machine waits for further operation by the customer. If the customer continues to select the goods, the unmanned vending machine continues the above process. If the customer chooses to change, the main control circuit will check the received amount Add and subtract the product price, send the difference to the coin acceptor, and the coin acceptor will change the coin according to the information sent by the main control circuit. So far, shopping is over. In this process, if the unmanned vending machine is not connected to the Internet, all sales data will be stored locally (now there are very few vending machines that are not connected to the Internet); if the unmanned vending machine is connected to the Internet, it will upload the sales data to With the back-end server, the vending machine administrator can log in to the back-end management account to view the sales of the vending machine anytime and anywhere, and the management is more convenient.

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