Half-duplex communication method for refrigerator and refrigerator

A half-duplex communication and refrigerator technology, applied in duplex signal operation, applications, home appliances, etc., can solve the problems of slow response from the board, low transmission efficiency, and long handshake time, so as to speed up the response speed and meet the communication requirements , the effect of improving communication efficiency

CN112134771BActive Publication Date: 2022-03-29QINGDAO HAIER REFRIGERATOR CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-03-29

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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.
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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...

Examples

Embodiment Construction

[0031] figure 1 is a schematic diagram of a refrigerator 10 according to one embodiment of the present invention. The refrigerator 10 may generally include a master communication terminal 110 , at least one slave communication terminal 120 , and a communication bus 130 connecting the master communication terminal 110 and the slave communication terminal 120 .

[0032] The above-mentioned main communication terminal 110 may be a main control device of the refrigerator 10 as an information processing core of the refrigerator 10 . The slave communication terminal 120 can be the control board of each executive component, such as the ice machine control board (for controlling the actions of entering and exiting water to make ice, crushing ice, and taking ice), and the variable temperature control board (for controlling the switching of different gears). Time-varying temperature damper, fan, compressor status), micro air duct control panel, etc. The number and types of the slave c...