A function expansion device and modification method of an automatic vending machine

Abstract

The invention relates to the technical field of commodity selling equipment, and provides a vending machine function extension device. The device comprises a master controller, a touch display screen, a simulation keyboard input interface used for receiving an input signal generated by a vending machine keyboard input device, a simulation keyboard output interface used for transmitting a keyboard signal coming from a simulation keyboard signal conversion module to a vending machine VMC, the simulation keyboard signal conversion module, an MDB / VTS interface, an MDB / VTS data processing module, a UART serial port and a wireless communication module; the master controller is connected with the simulation keyboard signal conversion module, the MDB / VTS data processing module, the UART serial port, the touch display screen and the wireless communication module. The invention further provides a transformation method of the vending machine. The vending machine function extension device and the transformation method have the advantages that detailed commodity information is displayed on the touch display screen, and selection is convenient; more non-cash transaction payment modes are added; the vending machine function extension device is reasonable in structure, novel and wide in application prospect.

Description

technical field [0001] The invention relates to the technical field of commodity vending equipment, in particular to a function expansion device and a transformation method of an automatic vending machine. Background technique [0002] Traditional vending machines have been using keyboards or buttons to purchase goods, while new vending machines can be purchased through screens. The transformation method of the traditional vending machine is to use the serial port to connect with the industrial computer with the screen to realize the purchase of goods on the screen. A special software protocol is used between VMC and industrial computer. [0003] CN201928274U discloses a wireless data transmission device for vending machines, which enables network monitoring of vending machines. [0004] CN101807325A discloses a wireless data terminal for non-cash transactions of automatic vending machines, which can realize non-cash transactions of automatic vending machines. [0005] US...

AI Technical Summary

Problems solved by technology

[0007] 1. Without a standard software protocol, it is difficult to achieve interconnection;

[0008] 2. There are many manufacturers of the main controller, and the software implementation of each company is different, so the software development is difficult;

[0009] 3. There is a large amount of traditional vending machines in the existing market, the old machines have been used for a long time, and the workload and difficulty of software upgrades are great;

[0010] 4. The purchase of the screen is a function upgrade, most of which are not covered by the warranty, and the cost of the upgrade is huge

[0012] 1. None of the above-mentioned publications realizes the function of selecting products on the touch-screen display screen. Since none of the modified terminals mentioned in the above-mentioned patent documents can take over the product selection buttons on the vending machine, it is impossible to Realize the selection of products on the new touch screen, and still rely on the original product selection buttons on the vending machine to select products

[0013] 2. Although the above-mentioned published documents provide non-cash transaction methods, they have limitations and cannot implement new payment methods such as picking up goods by using a pick-up code

The reason is that the keyboard code input to the main board VMC of the vending machine cannot be realized

Images