Briefly describes the basic function of the vending machine

In real life, we can see the vending machine sales of some simple daily necessities, such as beverage, commonly used drugs and small articles for daily use, etc. Vending machine's basic function is to put the money in operation, and according to the monetary value judgment whether to buy a commodity, and make corresponding reaction. Saw an example to illustrate, for example: in the vending machine have 8 commodity, including 01 goods ( On behalf of the kind of goods) The price of 2. 6 yuan, 02 goods is 3. 5 yuan, and the rest on. Now put a 1 yuan coin, when put currency than 01 prices of the goods, 01 commodity option buttons should change, prompt can buy, compared with other commodities. When press select 01 prices of the goods, vending machine to subtract from into monetary value minus the 01, extract, prices of the goods at the same time start the corresponding motor 01 goods shipment to the port. The vending machine to continue waiting for external commands, such as continue to trade and the same as above, if no longer buy and COINS back button at this time, vending machine, must carry on the work operation, returned to the corresponding currency, and in the program, complete the transaction. It seems that vending machine to a deal involving addition, subtraction operation and when the work division, this is its internal functions. Must have the currency recognition system and monetary rotation to achieve a complete sales, work function. As a large domestic advanced vending machine production base, with the domestic technology development laboratories and excellent technology research and development team, the vending machine has become the industry leader, specific function as follows: credit card shopping function: under the condition of network environment support, have a variety of electronic payment function, such as credit card, stored-value CARDS, mobile phone card brush calorie of consumption. Multiple currency recognition: electronic control system with paper money, COINS recognizer can increase function of vouchers, can identify types of COINS and paper vouchers. Data download function: the application of USB technology, the use of a USB flash drive, you can easily download vending machine operating information, and then use a PC to download data, easy to master by the carriers in different areas, different machine and selling goods. Wireless network operation management functions: will the vending machine current operating data, including the system status, system failure and material failure, out of stock situation, the sales data by installing in the vending machine of GPRS wireless transmission module to the vending machine network server, operating personnel can grasp on any a networked computer vending machine of this information, realize the vending machine of large-scale operations and network management. Mobile phone shopping function: vending machine system and mobile POS docking module system, implementation of the mobile launch 2. 4 GHZ RFSIM card to read and write operations, complete mobile phone shopping function. Multimedia display function: the LED display, multimedia display technology, docking vending machine system and PC system, make consumers can be controlled by PC touch screen vending machine of choose and buy goods, not only replace the pick button, and make the vending machine has the function of media. Self-help pay cost of business: the ATM system embedded in a vending machine, make the vending machine in mobile, financial terminal equipment, realize self-help payment business. A: take you analysis of working principle of the automatic coin vending machine