The communication method and system of the upper computer of the refrigerator, the lower computer of the refrigerator, and the refrigerator

Abstract

The invention provides an upper computer of a refrigerator, a lower computer of the refrigerator and a communication method and system of the refrigerator. The upper computer of the refrigerator includes an upper computer processing unit, an upper computer timer, a first I / O port and a second I / O port. The upper computer processing unit is used for receiving a current command input from the outside and generating a communication command corresponding to the current command; the upper computer timer is used for executing the following steps that A1, the communication command is obtained; A2, the communication command is sent to the lower computer of the refrigerator through the first I / O port; A3, a replay signal, corresponding to the communication command, sent by the lower computer of the refrigerator is received through the second I / O port, wherein the replay signal includes a guidance code, a communication head code, state data, a check code and an end electrical level; A4, the guidance code, the communication head code, the state data, the check code and the end electrical level are judged in sequence to determine whether all of them meet the corresponding preset rules of the upper computer of the refrigerator or not, if yes, the replay signal is determined as an effective replay signal, the state data is extracted, otherwise, the A2 is executed.

Description

technical field The invention relates to the field of electronic technology, in particular to a refrigerator upper computer, a refrigerator lower computer, and a refrigerator communication method and system. Background technique Refrigerators are widely used household appliances, and people have higher and higher requirements for the control functions of refrigerators, which put forward higher requirements for refrigerator controllers. With the rise of the concept of human-computer interaction, users can set the working state of the refrigerator they want to achieve by operating the upper computer (display board) of the refrigerator, which makes the data interaction between the upper computer and the lower computer (electric control board) of the refrigerator become essential. The existing technology adopts a control system based on a single-chip microcomputer, and realizes the interaction between the upper computer and the lower computer through the communication module o...

AI Technical Summary

Problems solved by technology

Therefore, when the prior art uses the communication module to realize the interaction between the host computer and the lower computer, it will affect the realization of other functions of the single-chip microcomputer.

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