Half-duplex communication method for refrigerator and refrigerator

Abstract

The invention provides a half-duplex communication method for a refrigerator and the refrigerator. The refrigerator has a master communication terminal, at least one slave communication terminal, and a communication bus connecting the master communication terminal and the slave communication terminal, and the communication method includes: after the master communication terminal obtains the communication initiation event, determines the communication mode according to the communication initiation event; obtains the communication mode as The address segment of the slave communication end of the communication object, and determine the transfer address value corresponding to the communication mode from the address segment, each address segment of the slave communication end includes multiple transfer address values ​​corresponding to different communication modes, and different slave communication ends The address segments are configured to be different; the main communication end sends a handshake request, and initiates a communication process to the communication object after receiving the handshake reply, and the handshake request includes at least the determined transmission address value. The communication is initiated by the master communication terminal, and the communication handshake is performed directly using the transfer address of the slave communication terminal as the communication object, which greatly improves the handshake efficiency and speeds up the response speed of the refrigerator.

Description

technical field [0001] The invention relates to home appliance control, in particular to a half-duplex communication method for a refrigerator and the refrigerator. Background technique [0002] As the functions of refrigerators continue to increase, the number of circuit boards in refrigerators continues to increase. In order to coordinate operations, data transmission between circuit boards is required. [0003] In refrigerators in the prior art, communication between circuit boards generally adopts a simple and reliable master-slave half-duplex communication mode. However, with the expansion of functions, the number of slave boards, communication times, and communication data also continue to increase. The handshake between the existing master-slave half-duplex communication methods adopts the same data format, that is, the master control board sends a frame of data (about 20Byte, takes 20ms) to other single slave boards during the handshake, and then the slave board rep...

AI Technical Summary

Problems solved by technology

The handshake between the existing master-slave half-duplex communication methods adopts the same data format, that is, the master control board sends a frame of data (about 20Byte, takes 20ms) to other single slave boards during the handshake, and then the slave board replies to the master control board. The connection is established after the frame data, so as the number of slave boards increases, the handshake time will be longer and the communication delay will cause the slave board to respond slowly. For some data with higher priority, the transmission efficiency is also relatively low.

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