Traditional vending machine

The machine that teases you is a traditional vending machine. Its essence is a two-dimensional coordinate system. You select a certain coordinate, and the machine will push out the beverage.

They are generally closed design, and no one can steal anything, but the price is that you have to push the partitions away in a squatting position to take out the goods; and you can only buy one at a time, and there is often a "Bought, But I didn't buy it completely" embarrassing scene

Smart vending machine

So nowadays, the vending machines in office buildings and other places are basically this kind of open intelligent vending machine. Open the cabinet door and take it as you like, take out the drinks in front, and the back slides automatically. After closing the door, the fee is automatically deducted.