Temperature control method and device for controlling temperature adjusting equipment of vending machine

Abstract

A device and a method for controlling a temperature adjusting equipment of a vending machine belong to the field of vending machine. The method comprises the following steps: arranging a temperature control device between a main controller (101) and the temperature adjusting equipment (102) of the vending machine, wherein the main controller (101) is communicated with the temperature control device through MDB protocol; constructing MDB communication between the main controller (101) and the temperature control device firstly; transmitting preset operation parameters to the temperature control device by the main controller (101) through a MDB bus; storing the received operation parameters in the temperature control device; and controlling the operation state of the temperature adjusting equipment by the temperature control device according to the operation parameters. The device comprises a temperature adjusting controller (301), a temperature control data memory (302), a MDB communication module (303) and an execution module (305), wherein the I / O ports of the temperature adjusting controller (301) are connected with the temperature control data memory (302), the MDB communication module (303) and the execution module (305). The device can improve the reliability of the vending machine system, and enhance the configuration flexibility.

Description

technical field [0001] The invention relates to the field of automatic vending machines, in particular to a temperature control method and device for controlling temperature adjustment equipment of automatic vending machines. Background technique [0002] In the current prior art, an internal communication protocol——MDB / ICP protocol (Multi-Drop Bus / Internal Communication Protocol), abbreviated as MDB protocol, is commonly used in the field of vending machines. The agreement was jointly formulated by three organizations including the American Vending Association NAMA (Nation Automatic Merchandising Association), the European Vending Association EVA (European Vending Association) and the European Vending Machine Manufacturers Association EVMMA (European Vending Machine Manufacturers Association). It is a master-slave serial bus protocol with a baud rate of 9600. Each type of peripheral on the MDB bus is assigned a fixed address, and the controller broadcasts instructions to t...

AI Technical Summary

Problems solved by technology

[0004] The first is risk concentration. Once the controller fails, the entire vending machine system will be paralyzed, the temperature adjustment equipment will stop operating, and the stored goods will deteriorate and cannot be sold;

[0005] Secondly, the configuration of the temperature adjustment equipment is not flexible

Since the main controller of the automatic vending machine directly controls the temperature adjustment equipment, the manufacturer of the automatic vending machine must develop two different control hardware and software according to whether the temperature adjustment equipment is equipped, which undoubtedly increases the cost of research and development and production.

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