Communication control method and apparatus for air conditioner, and communication system and readable storage medium

Patent metadata

Field	Value
Publication number	US-12566010-B2
Application number	US-202117922971-A
Country	US
Kind code	B2
Filing date	Sep 10, 2021
Priority date	Dec 9, 2020
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

Provided are a communication control method and apparatus for an air conditioner, and a communication system and a readable storage medium. The communication control method for an air conditioner includes acquiring a voltage signal on a bus; determining a voltage slope-rising edge and a voltage slope-falling edge in the voltage signal based on that the voltage signal satisfies a comparison condition of a power supply voltage of a communication device and a reference voltage on the bus; performing time comparison on the voltage signal to obtain a processed voltage signal based on that the voltage slope-rising edge and the voltage slope-falling edge satisfy a slope comparison condition; determining, from a data model library, a target data model that is consistent with the processed voltage signal; and outputting data information corresponding to the target data model.

First claim

What is claimed is:

1 . A communication control method for an air conditioner, wherein the air conditioner is connected with a bus, and the communication control method for an air conditioner comprises:
acquiring a voltage signal on the bus; determining a voltage slope-rising edge and a voltage slope-falling edge in the voltage signal based on that the voltage signal satisfies a comparison condition of a power supply voltage of the air conditioner and a reference voltage on the bus; performing time comparison on the voltage signal to obtain a processed voltage signal based on that the voltage slope-rising edge and the voltage slope-falling edge satisfy a slope comparison condition; determining, from a data model library, a target data model that is consistent with the processed voltage signal; and outputting data information corresponding to the target data model.

2 . The communication control method for an air conditioner according to claim 1 , wherein
determining that the voltage signal satisfies the comparison condition of the power supply voltage of the air conditioner and the reference voltage on the bus, based on that any sampling voltage value in the voltage signal is less than or equal to the power supply voltage of the air conditioner and a difference between the sampling voltage value and the reference voltage is greater than a preset threshold.

3 . The communication control method for an air conditioner according to claim 1 , wherein
determining a first amplitude corresponding to the voltage slope-rising edge and a second amplitude corresponding to the voltage slope-falling edge; and determining that the voltage slope-rising edge and the voltage slope-falling edge satisfy the slope comparison condition, based on that a ratio of the first amplitude to the second amplitude is greater than 0.5 and less than 2.

4 . The communication control method for an air conditioner according to claim 1 , wherein the determining the voltage slope-rising edge and the voltage slope-falling edge in the voltage signal comprises:
recording a sampling voltage value as a first voltage value based on that the sampling voltage value of the bus is greater than the reference voltage; recording the sampling voltage value as a second voltage value based on that a duration when the sampling voltage value of the bus is greater than the reference voltage is greater than or equal to a first preset duration; taking a ratio of the second voltage value to the first voltage value as the voltage slope-rising edge; searching for a moment when the sampling voltage value of the bus is a maximum voltage value and taking the moment as a start moment, and recording the sampling voltage value recorded after the first preset duration as a third voltage value; and taking a ratio of the maximum voltage value to the third voltage value as the voltage slope-falling edge.

5 . The communication control method for an air conditioner according to claim 1 , wherein the performing of the time comparison on the voltage signal to obtain a processed voltage signal comprises:
determining a moment when a sampling voltage value is greater than the reference voltage as a start moment, and recording a first moment after a second preset duration; determining the moment when the sampling voltage value of the bus is the maximum voltage value as a start moment, and recording the second moment after the second preset duration; determining a first duration according to the first moment and the second moment; determining a number of a first numerical codes represented by the first duration according to the first duration and the duration corresponding to the first numerical code in binary data; determining the moment when the sampling voltage value of the bus is greater than the reference voltage again as a start moment, and recording a third moment after the second preset duration; determining the second duration according to the third moment and the second moment; determining a number of the second numerical codes represented by the second duration according to the second duration and the duration corresponding to the second numerical codes in the binary data; and determining the processed voltage signal according to the number of the first numerical codes, the number of the second numerical codes, the first numerical codes and the second numerical codes.

6 . The communication control method for an air conditioner according to claim 5 , further comprising:
determining that the first duration corresponds to M consecutive first numerical codes, based on that a difference between the first duration and the duration corresponding to M first numerical codes is less than or equal to a set value; and determining that the second duration corresponds to N consecutive second numerical codes, based on that a difference between the second duration and the duration corresponding to N second numerical codes is less than or equal to the set value, wherein M and N are natural numbers.

7 . The communication control method for an air conditioner according to claim 5 , further comprising:
obtaining a baud rate of the air conditioner and the actual communication time on the bus; and determining the duration corresponding to the first numerical code and the duration corresponding to a second numerical code according to the baud rate and the actual communication time.

8 . A communication system, comprising:
a processor, a memory; and a program or an instruction which is stored in the memory and can run in the processor, wherein the steps of the communication control method for an air conditioner according to claim 1 are achieved when the program or the instruction is executed by the processor.

9 . A non-transitory readable storage medium, wherein a program or an instruction is stored in the readable storage medium, when the program or the instruction is executed by a processor, the steps of the communication control method for an air conditioner according to claim 1 are achieved.

10 . A communication control apparatus for an air conditioner, wherein the air conditioner is connected with a bus, and the communication control apparatus for an air conditioner comprises:
an acquiring device, configured to acquire the voltage signal on the bus; a determining device, configured to: determine a voltage slope-rising edge and a voltage slope-falling edge in the voltage signal based on a situation that the voltage signal satisfies a comparison condition of a power supply voltage of the air conditioner and a reference voltage on the bus, perform time comparison on the voltage signal to obtain a processed voltage signal based on that the voltage slope-rising edge and the voltage slope-falling edge satisfy a slope comparison condition, and determine, from a data model library, a target data model that is consistent with the processed voltage signal; and an output device, configured to output data information corresponding to the target data model.

Assignees

• Gd Midea Heating & Ventilating Equipment Co Ltd
• Midea Group Co Ltd

Inventors

• Sun Liangwei
• Mei Lijun
• Wu Tian
• Peng Mengqiang

Classifications

• G06F13/4068

  Electrical coupling · CPC title

• H04L12/10

  Current supply arrangements · CPC title

• Y02B30/70

  Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating · CPC title

• H03K5/1534

  Transition or edge detectors · CPC title

• F24F11/88 Primary

  Electrical aspects, e.g. circuits · CPC title