Vending machine based on FPGA control

Abstract

The invention discloses a vending machine based on FPGA control, belongs to the field of vending equipment, and provides a vending machine based on FPGA control with high running speed and strong expandability. The technical solution of the invention is as follows: the vending machine comprises an FPGA control module and a currency recognition apparatus; a coin slot is arranged on the currency recognition apparatus; the FPGA control module comprises a frequency divider and a core control unit; the output end of the frequency divider is connected to the input end of the clock signal of the corecontrol unit; the coin slot is connected to the core control unit through the currency recognition apparatus; the core control unit is implemented through a finite state machine; the currency recognition apparatus is used for recognizing the authenticity of the input coins; the frequency divider is used for obtaining stable clock signals which are long in period and low in shaking degree; and thefinite state machine is used for realizing conversion between different states according to the number of different coins input through the coin slot, and controlling the commodity vending and leveling operation of the vending machine.

Description

technical field [0001] The invention relates to an automatic vending machine based on FPGA control, which belongs to the technical field of automatic vending equipment. Background technique [0002] A vending machine is an automatically controlled sales device whose function is to automatically sell goods and give change according to the total amount of coins put in. Since vending machines are not limited by time and place, they can automatically sell goods in places with large passenger traffic such as airports, subways, and parks. This transaction method is highly intelligent, convenient and fast, and saves manpower to the greatest extent. Therefore, it is widely used very broad. [0003] At present, most of the vending machines on the market are based on the single-chip microcomputer as the core controller, and the single-chip microcomputer is widely used because of its low price. However, the internal program of the vending machine based on the single-chip microcompute...

AI Technical Summary

Problems solved by technology

However, the internal program of the vending machine based on the single-chip microcomputer as the core controller is executed sequentially. Therefore, the processing speed is slow, and problems such as freezes, crashes, and even sales and change errors often occur, requiring regular manual processing.

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