WO2020228136A1

WO2020228136A1 - Air conditioner and communication control method therefor, device, and electronic apparatus

Info

Publication number: WO2020228136A1
Application number: PCT/CN2019/097775
Authority: WO
Inventors: 向兴华
Original assignee: 广东美的制冷设备有限公司; 美的集团股份有限公司
Priority date: 2019-05-10
Filing date: 2019-07-25
Publication date: 2020-11-19
Also published as: CN110173802B; CN110173802A

Abstract

Disclosed are an air conditioner and a communication control method therefor, a device, and an electronic apparatus. The method comprises: controlling an indoor unit and an outdoor unit of an air conditioner to communicate with each other using a first communication parameter; performing detection on the communication between the indoor unit and the outdoor unit, and determining that an anomaly occurs in the communication between the indoor unit and the outdoor unit; and controlling the indoor unit and the outdoor unit to communicate with each other using a second communication parameter. The control method of the present invention ensures that a compressor can be activated quickly when an air conditioner is turned on at a normal voltage, and ensures that a fault does not occur in communication between an indoor unit and an outdoor unit when the communication is performed at a low voltage.

Description

Air conditioner and its communication control method, device and electronic equipment

Cross references to related applications

This application is filed based on a Chinese patent application with an application number of 201910390455.1 and an application date of May 10, 2019, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by reference.

Technical field

This application relates to the field of air conditioning technology, and in particular to an air conditioner and its communication control method, device and electronic equipment.

Background technique

At present, the communication between the indoor unit and the outdoor unit of the inverter air conditioner generally uses a current loop for real-time communication, and the communication between the indoor unit and the outdoor unit generally uses a fixed communication interval in the master-slave mode. When the power grid is in a low voltage state, the air conditioner will have insufficient current loop power supply voltage, which will cause communication failures between indoor and outdoor units.

In the related technology, the method of extending the communication interval is adopted to reduce the power consumption of the current loop to realize the communication between the indoor unit and the outdoor unit. However, no matter what voltage state, the user turns on the outdoor unit for a long period of time. The machine can only receive the communication instructions from the indoor machine to turn on the compressor and outdoor fan, which affects the cooling and heating effect of the air conditioner and reduces the user experience.

Summary of the invention

This application aims to solve one of the technical problems in the related technology at least to a certain extent.

For this reason, the first purpose of this application is to propose an air conditioner and its communication control method, which can not only ensure that the compressor and outdoor fan can be started quickly after the user is turned on under normal voltage, but also ensure that the indoor unit and The outdoor unit will not have communication failure.

The second purpose of this application is to provide a communication control device for an air conditioner.

The third purpose of this application is to propose an air conditioner.

The fourth purpose of this application is to propose an electronic device.

The fifth purpose of this application is to provide a computer-readable storage medium.

In order to achieve the above objective, an embodiment of the first aspect of the present application provides a communication control method for an air conditioner, including: controlling the indoor unit and the outdoor unit in the air conditioner to communicate using a first communication parameter; An abnormal communication between the indoor unit and the outdoor unit occurs between the outdoor unit and the outdoor unit; and the second communication parameter is controlled to communicate between the indoor unit and the outdoor unit.

In addition, the communication control method for an air conditioner proposed according to the above embodiments of the present application may also have the following additional technical features:

In an embodiment of the present application, the first communication parameter is a communication parameter used when the input voltage of the air conditioner is greater than or equal to a preset voltage; the second communication parameter is the input voltage of the air conditioner The communication parameter used when it is less than the preset voltage threshold.

In an embodiment of the present application, the first communication parameter includes a first communication interval, and the second communication parameter includes a second communication interval; wherein, the first communication interval is smaller than the second communication interval.

In an embodiment of the present application, the above-mentioned communication control method for an air conditioner further includes: controlling the communication power supply between the indoor unit and the outdoor unit during the first communication interval or the second communication interval Or, controlling the current of the communication loop between the indoor unit and the outdoor unit to be less than a preset current threshold.

In an embodiment of the present application, the preset current threshold is greater than or equal to 0.5 mA, and the preset current threshold is less than or equal to 50 mA.

In an embodiment of the present application, the preset current threshold is greater than or equal to 1 mA, and the preset current threshold is less than or equal to 2 mA.

In an embodiment of the present application, the first communication interval and the second communication interval are greater than or equal to 1 ms, and the first communication interval and the second communication interval are less than or equal to 100s.

In another embodiment of the present application, the first communication interval and the second communication interval are greater than or equal to 1 ms, and the first communication interval and the second communication interval are less than or equal to 10 seconds.

In an embodiment of the present application, the first communication parameter includes a first baud rate, and the second communication parameter includes a second baud rate, wherein the first baud frequency is less than the second baud rate. Baud rate.

In an embodiment of the present application, the first baud rate and the second baud rate are greater than or equal to 10 bps, and the first baud rate and the second baud rate are less than or equal to 100 Kbps.

In another embodiment of the present application, the first baud rate and the second baud rate are greater than or equal to 100 bps, and the first baud rate and the second baud rate are less than or equal to 10 Kbps .

In an embodiment of the present application, the first communication parameter includes a first data frame length, and the second communication parameter includes a second data frame length, wherein the first data frame length is greater than the second data frame length. Frame length.

In an embodiment of the present application, the first data frame length and the second data frame length are greater than or equal to 1 byte, and the first data frame length and the second data frame length are less than or equal to 1024 bytes.

In an embodiment of the present application, the first communication parameter includes a first communication interval and a first baud rate, and the second communication parameter includes a second communication interval and a second baud rate. The product of a communication interval and the first baud rate is smaller than the product of the second communication interval and the second baud rate.

In an embodiment of the present application, the first communication parameter includes a first communication interval and a first baud rate and a first data frame length; the second communication parameter includes a second communication interval and a second baud rate And the second data frame length; wherein, the first value=the first data frame length/(the first communication interval*the first baud rate); the second value=the second data frame length/ (The second communication interval * the second baud rate), the first value is greater than the second value.

In an embodiment of the present application, before said controlling the communication between the indoor unit and the outdoor unit using the second communication parameter, the method further includes: acquiring communication abnormality between the indoor unit and the outdoor unit And/or, obtain the abnormal number of abnormal communication between the indoor unit and the outdoor unit within the second preset time period, and identify the The number of abnormalities is greater than or equal to the preset number.

In an embodiment of the present application, the communication abnormality between the indoor unit and the outdoor unit and the communication between the indoor unit and the outdoor unit includes: detecting that the indoor unit is in the third preset Assuming that the response data fed back by the outdoor unit is not received for a time period, it is determined that a communication abnormality occurs between the indoor unit and the outdoor unit.

In an embodiment of the present application, the communication abnormality between the indoor unit and the outdoor unit between the indoor unit and the outdoor unit further includes: detecting that the indoor unit is in the fourth Receiving the response data fed back by the outdoor unit for a preset time; identifying that the feedback response data is abnormal; according to the abnormality of the response data, it is determined that the communication between the indoor unit and the outdoor unit is abnormal.

In an embodiment of the present application, the controlling the communication between the indoor unit and the outdoor unit using a second communication parameter includes: obtaining the current input voltage of the air conditioner, and identifying that the input voltage is less than The preset voltage threshold; acquiring the second communication parameter that matches the input voltage, and controlling the communication parameter between the indoor unit and the outdoor unit to be updated from the first communication parameter to the second communication parameter .

In an embodiment of the present application, the preset voltage threshold is greater than or equal to 40V, and the preset voltage threshold is less than or equal to 180V.

In another embodiment of the present application, the preset voltage threshold is greater than or equal to 100, and the preset voltage threshold is less than or equal to 150V.

To achieve the foregoing objective, an embodiment of the second aspect of the present application provides a communication control device for an air conditioner, including: a communication control module for controlling the indoor unit and the outdoor unit in the air conditioner to communicate using the first communication parameter, And a communication abnormality occurs between the indoor unit and the outdoor unit to control the communication between the indoor unit and the outdoor unit using a second communication parameter; an abnormality detection module is used to communicate between the indoor unit and the outdoor unit An abnormal communication occurs between the outdoor unit and the indoor unit and the outdoor unit.

In order to achieve the foregoing objective, an embodiment of the third aspect of the present application provides an air conditioner, including: the foregoing communication control device for the air conditioner.

To achieve the foregoing objective, an embodiment of the fourth aspect of the present application provides an electronic device, including a memory, a processor, and a program stored in the memory and running on the processor. When the processor executes the program, The above-mentioned communication control method of the air conditioner.

To achieve the foregoing objective, an embodiment of the fifth aspect of the present application provides a computer-readable storage medium on which a computer program is stored, and the program is executed by a processor to implement the foregoing communication control method for an air conditioner.

One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

1. Ensure that the indoor unit and outdoor unit can communicate quickly under normal voltage, so that the compressor and outdoor fan can start quickly, and ensure that the indoor unit and outdoor unit can communicate normally under low voltage conditions without reporting the communication failure of the indoor unit and outdoor unit .

2. It can effectively make up for the delayed start of the compressor after the user turns on under the normal voltage and the communication failure of the indoor and outdoor units of the air conditioner under the condition of low voltage, ensuring that the air conditioner can work normally under normal voltage and low voltage.

Description of the drawings

FIG. 1 is a flowchart of a communication control method of an air conditioner according to Embodiment 1 of the application;

Figure 2 is a communication circuit diagram of the air conditioner according to the first embodiment of the application;

3 is a waveform diagram of the communication interval when the communication between the indoor unit and the outdoor unit in the first embodiment of the application is started;

4 is a waveform diagram of the baud rate when the communication between the indoor unit and the outdoor unit in the first embodiment of the application is started;

Fig. 5 is a schematic block diagram of a communication control device for an air conditioner according to a second embodiment of the application; and

Fig. 6 is a block diagram of the air conditioner according to the third embodiment of the application.

Detailed ways

In order to solve the communication between the indoor unit and the outdoor unit of the inverter air conditioner in the prior art, the master-slave mode is generally used for fixed communication interval communication. When the power grid is in a low voltage state, the current loop power supply voltage is insufficient and the indoor and outdoor unit communication fails. In addition to the technical problem of insufficient communication that affects user experience by extending the communication interval and reducing the power consumption of the current loop, this application proposes a communication control method for an air conditioner. The indoor unit and the outdoor unit preferentially use a small normal voltage communication interval. The communication mode is used for communication. When the indoor unit and the outdoor unit cannot communicate normally within a limited time or number of times, it will automatically switch to a low-voltage communication mode with a large communication interval. This can ensure that the compressor and outdoor fan can be powered by the user under normal voltage. Quick start can ensure that the indoor unit and outdoor unit will not have communication failures under low voltage.

In order to better understand the above technical solutions, the exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the drawings show exemplary embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided for a more thorough understanding of the application, and to fully convey the scope of the application to those skilled in the art.

In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementations.

Example one

Fig. 1 is a flowchart of a communication control method of an air conditioner according to Embodiment 1 of the application.

In an embodiment of the present application, as shown in FIG. 2, the communication circuits of the indoor unit and the outdoor unit involved in the communication control method of the air conditioner in the embodiment of the present application mainly include: an outdoor communication circuit 10 and an indoor communication circuit 20.

Specifically, the outdoor communication circuit 10 may include: multiple resistors (such as resistors R20-R27), multiple capacitors (such as capacitors C21-C24), multiple diodes (such as diodes D20 and D3), multiple photocouplers (such as Photocoupler IC20 and IC21), common mode inductor L2 and transistor Q101 and other components. The indoor communication circuit 20 may include: multiple resistors (such as resistors R1-R11), multiple capacitors (such as capacitors C21-C24), electrolytic capacitor E1, multiple diodes (such as diodes D1-D3), multiple photocouplers ( Such as photocoupler IC2 and IC1), voltage regulator tube DZ1, common mode inductor L1 and transistor Q1 and other components. Among them, the communication power supply 21 may include: a diode D1, resistors R1 and R2, a voltage regulator tube DZ1, an electrolytic capacitor E1, and a capacitor C1. The diode D1, resistors R1 and R2 form a charging circuit for charging the electrolytic capacitor E1; a photocoupler IC20 and IC21, resistor R20, diodes D20 and D2, resistor R4, photocouplers IC1 and IC2 form the entire communication loop of the current loop.

In general, current loops are used for real-time communication between the indoor unit and the outdoor unit of the air conditioner. For example, the communication between the indoor unit and the outdoor unit uses a fixed communication interval and frequency in the master-slave mode. However, in the low voltage state, the air conditioner will have insufficient current loop power supply voltage, which will cause the communication between the indoor unit and the outdoor unit to fail. Although it is possible to reduce the power consumption of the current loop by using a communication method that extends the communication interval, it will appear that no matter what voltage state, the outdoor unit will receive the communication command from the indoor unit after a long period of time after the user is turned on, and then the compression will be turned on. This will affect the user’s experience and the cooling and heating effect of the air conditioner.

For this reason, this application proposes a communication control method for an air conditioner, which can ensure that the compressor and outdoor fan can quickly start after the user turns on under normal voltage, and can ensure that the indoor unit and outdoor unit will not communicate under low voltage. malfunction.

As shown in FIG. 1, the communication control method of the air conditioner in the embodiment of the present application may include the following steps:

S11: Control the indoor unit and the outdoor unit in the air conditioner to communicate using the first communication parameter.

S12: Detect the communication between the indoor unit and the outdoor unit, and determine that there is an abnormal communication between the indoor unit and the outdoor unit.

In an embodiment of the present application, detecting the communication between the indoor unit and the outdoor unit to determine that there is an abnormal communication between the indoor unit and the outdoor unit includes: detecting that the indoor unit does not receive the outdoor unit within the third preset period of time The feedback data confirms that there is an abnormal communication between the indoor unit and the outdoor unit. Among them, the third preset duration can be calibrated according to actual conditions.

Specifically, when the indoor unit and the outdoor unit preferentially use the first communication parameter for communication, it is also necessary to determine whether the communication between the indoor unit and the outdoor unit is normal, and if it is not normal, the communication mode needs to be changed. For example, after the indoor unit sends a communication connection signal to the outdoor unit, if the indoor unit still does not receive the response data from the outdoor unit after a period of time (the third preset duration), it is determined that there is communication between the indoor unit and the outdoor unit abnormal.

In another embodiment of the present application, detecting the communication between the indoor unit and the outdoor unit to determine that there is an abnormal communication between the indoor unit and the outdoor unit further includes: detecting that the indoor unit receives the outdoor unit within the fourth preset period of time. The response data fed back by the unit; identify the abnormality of the response data fed back; according to the abnormality of the response data, determine that the communication between the indoor unit and the outdoor unit is abnormal. Among them, the fourth preset duration can be calibrated according to actual conditions.

That is to say, when the indoor unit receives the response data from the outdoor unit within a certain period of time, it will further determine whether the received response data is correct. For example, you can check the waveform of the data feedback. Different, it indicates that the data to be sent back by the outdoor unit is abnormal. At this time, it is judged that there is an abnormal communication between the indoor unit and the outdoor unit.

S13: Control the indoor unit and the outdoor unit to communicate using the second communication parameter.

Specifically, after the air conditioner is powered on, the communication mode of normal voltage is preferentially used for communication (the first communication parameter is preferentially used for communication), which can ensure that the compressor and outdoor fan can quickly start after the user turns on, ensuring that the air conditioner The cooling/heating effect is improved to improve user experience. When an abnormal communication between the indoor unit and the outdoor unit is detected, the communication between the indoor unit and the outdoor unit is controlled to communicate under low voltage, that is, the second communication parameter is used for communication, which can ensure that even under low voltage It can also ensure that communication will not fail.

In an embodiment of the present application, the first communication parameter may be a communication parameter used when the input voltage of the air conditioner is greater than or equal to the preset voltage threshold; the second communication parameter may be that the input voltage of the air conditioner is less than the preset voltage threshold The communication parameters used at the time.

In an embodiment of the present application, controlling the indoor unit and the outdoor unit to communicate using the second communication parameter includes: obtaining the current input voltage of the air conditioner, identifying that the input voltage is less than a preset voltage threshold; obtaining the voltage matching the input voltage The second communication parameter controls the update of the communication parameter between the indoor unit and the outdoor unit from the first communication parameter to the second communication parameter.

Among them, the preset voltage threshold can be calibrated according to actual conditions. For example, the preset voltage threshold is greater than or equal to 40V, and the preset voltage threshold is less than or equal to 180V, that is, the preset voltage threshold can be in the range of [40V, 180V] In another example, the preset voltage threshold is greater than or equal to 100V, and the preset voltage threshold is less than or equal to 150V, that is, the value of the preset voltage threshold can be in the range of [100V, 150V].

After judging that there is an abnormal communication between the indoor unit and the outdoor unit using the first communication parameter for communication, obtain the current input voltage of the air conditioner. When the current input voltage is less than the preset voltage, obtain the second input voltage that matches the input voltage. Communication parameters, and update the communication parameters between the indoor unit and the outdoor unit from the first communication parameter to the second communication parameter (using the second communication interval and the second baud rate of low-voltage communication). This can ensure the normal communication between the indoor unit and the outdoor unit in the low voltage state without reporting a communication failure, and ensure that the air conditioner can work normally under normal voltage and low voltage.

It should be noted that the second communication parameter may be a fixed value, or the corresponding second communication parameter may be selected according to the magnitude of the input voltage, wherein the air conditioner prestores a table of the corresponding relationship between the input voltage and the second communication parameter.

In addition, when it is judged that a communication abnormality occurs when the first communication parameter is used for communication between the indoor unit and the outdoor unit, if the current input voltage of the air conditioner is greater than or equal to the preset voltage, it means that the reason for the current communication abnormality is not due to low Abnormal communication caused by voltage may be a problem with the line. At this time, an alarm is required to remind the user to repair.

In an embodiment of the present application, before controlling the communication between the indoor unit and the outdoor unit using the second communication parameter, it further includes: acquiring the duration of abnormal communication between the indoor unit and the outdoor unit, and identifying that the duration is greater than or equal to A first preset duration; and/or, acquiring the number of abnormal communication occurrences between the indoor unit and the outdoor unit within the second preset duration, and identifying that the number of abnormalities is greater than or equal to the preset number. Among them, the first preset duration, second preset duration, and preset times can be calibrated according to actual conditions.

Specifically, in order to ensure the accuracy of judging whether the communication is normal, when judging that there is an abnormal communication between the indoor unit and the outdoor unit, it is also determined whether there is an abnormality between the indoor unit and the outdoor unit according to the duration of the abnormal communication and/or the number of abnormalities. Communication is abnormal. For example, when judging that there is an abnormal communication between the indoor unit and the outdoor unit, obtain the duration of the abnormal communication between the indoor unit and the outdoor unit, and judge it, if the duration is greater than or equal to the first preset duration, then It can be determined that there is an abnormal communication between the indoor unit and the outdoor unit; if the duration is less than the first preset duration, it is further determined whether the number of abnormal communication between the indoor unit and the outdoor unit within the second preset duration is greater than or equal to the preset The number of times, among which, if yes, it is judged that there is a communication abnormality, if not, it means that there may be a communication delay between the indoor unit and the outdoor unit. For another example, it is also possible to determine whether an abnormality occurs only based on the duration of the abnormal communication between the indoor unit and the outdoor unit, or only based on the number of abnormal communications between the indoor unit and the outdoor unit within the second preset time period. Whether there is an abnormality.

In an embodiment of the present application, the first communication parameter includes a first communication interval, and the second communication parameter includes a second communication interval, where the communication interval is the length of the interval for transmitting adjacent data frames, the first communication interval and the second communication interval The communication interval can be calibrated according to actual conditions, and the first communication interval is smaller than the second communication interval. For example, the first communication interval and the second communication interval are greater than or equal to 1ms, and the first communication interval and the second communication interval are less than or equal to 100s, that is, the value of the first communication interval may be in the range of [1ms, 100s], The value of the second communication interval can be in the range of [1ms, 100s]; for another example, the first communication interval and the second communication interval are greater than or equal to 1ms, and the first communication interval and the second communication interval are less than or equal to 10s, that is, The value of the first communication interval may be in the range of [1ms, 10s], and the value of the second communication interval may be in the range of [1ms, 10s].

Among them, as shown in Figure 3, 103 is the timing diagram of the communication between the indoor unit and the outdoor unit; 104 is the waveform diagram of the communication input voltage between the indoor unit and the outdoor unit. When the communication interval between the indoor unit and the outdoor unit is small, the input voltage will decrease ; On the contrary, when the communication interval between the indoor unit and the outdoor unit increases, the input voltage will increase accordingly.

In an embodiment of the present application, the above-mentioned communication control method for an air conditioner further includes: controlling the communication power supply between the indoor unit and the outdoor unit to be turned off within the first communication interval or the second communication interval; or, controlling The current of the communication loop between the indoor unit and the outdoor unit is less than the preset current threshold.

Among them, the preset current threshold can be calibrated according to actual conditions. For example, the preset current threshold is greater than or equal to 0.5mA, and the preset current threshold is less than or equal to 50mA, that is, the preset current threshold can be set at [0.5mA, 50mA]; for another example, the preset current threshold is greater than or equal to 1mA, and the preset current threshold is less than or equal to 2mA, that is, the preset current threshold can be within the range of [1mA, 2mA].

That is to say, in order to reduce energy consumption and reduce resource waste, when the first communication interval is used for communication between the indoor unit and the outdoor unit, the communication power supply between the indoor unit and the outdoor unit is controlled to be turned off during the second communication interval. Or the current of the communication loop between the control indoor unit and the outdoor unit is less than the preset current threshold. Similarly, when the second communication interval is adopted between the indoor unit and the outdoor unit, the communication power supply between the control indoor unit and the outdoor unit is turned off within the first communication interval, or the communication between the indoor unit and the outdoor unit is controlled The loop current is less than the preset current threshold.

In another embodiment of the application, the first communication parameter includes a first baud rate, and the second communication parameter includes a second baud rate, where the first baud rate and the second baud rate can be performed according to actual conditions. Calibration, and the first baud rate is less than the second baud rate. For example, the first baud rate and the second baud rate are greater than or equal to 10bps, and the first baud rate and the second baud rate are less than or equal to 100Kbps, that is, the value of the first baud rate can be in [10bps, 100Kbps], the value of the second baud rate can be in the range of [10bps, 100Kbps]; another example, the first baud rate and the second baud rate are greater than or equal to 100bps, and the first baud rate and the second baud rate The second baud rate is less than or equal to 10Kbps, that is, the value of the first baud rate can be in the range of [100bps, 10Kbps], and the value of the second baud rate can be in the range of [100bps, 10Kbps].

As shown in Figure 4, when an abnormal communication occurs between the indoor unit and the outdoor unit, the communication parameters are updated from the first baud rate to the second baud rate. In order to ensure the normal communication between the indoor unit and the outdoor unit, increase The baud rate of the communication between the indoor unit and the outdoor unit, the baud rate changes from B1 to B2, and the time interval t2>t1.

It should be noted that after the time in FIG. 3 is individually enlarged every communication interval, the waveform diagram of the baud rate shown in FIG. 4 can be obtained.

In another embodiment of the present application, the first communication parameter includes a first data frame length, and the second communication parameter includes a second data frame length. The first data frame length and the second data frame length can be determined according to actual conditions. Calibration, and the length of the first data frame is greater than the length of the second data frame. For example, the first data frame length and the second data frame length are greater than or equal to 1 byte, and the first data frame length and the second data frame length are less than or equal to 1024 bytes, that is, the value of the first data frame length can be in [1byte, Within the range of 1024byte], the value of the second data frame length can be in the range of [1byte, 1024byte].

That is, under normal voltage, communication is performed with the first data frame length, and under low voltage or when the input voltage is less than the preset voltage threshold, communication is performed with the second data frame length.

In still another embodiment of the present application, the first communication parameter may include a first communication interval and a first baud rate, and the second communication parameter may include a second communication interval and a second baud rate; wherein, the first communication interval The product of the first baud rate is smaller than the product of the second communication interval and the second baud rate.

That is, under normal voltage, the communication is performed at the first communication interval and the first baud rate, and in the case of low voltage or when the input voltage is less than the preset voltage threshold, the communication is performed at the second communication interval and the second baud rate. Communication.

In yet another embodiment of the present application, the first communication parameter may include a first communication interval and a first baud rate and a first data frame length; the second communication parameter may include a second communication interval and a second baud rate and The second data frame length; where the first value = the first data frame length/(the first communication interval * the first baud rate); the second value = the second data frame length/(the second communication interval * the second wave) Special rate), the first value is greater than the second value.

In other words, after the air conditioner is powered on, the first value is preferentially used for communication. When it is judged that the communication between the indoor unit and the outdoor unit is abnormal or the input voltage is less than the preset voltage threshold, it is updated to use the second data for communication. Communication.

The above-mentioned technical solutions in the embodiments of the application have at least the following technical effects or advantages:

Based on the same concept, the embodiment of the present application also provides a device corresponding to the method in the first embodiment, see the second embodiment.

Example two

Fig. 5 is a schematic block diagram of a communication control device for an air conditioner according to a second embodiment of the application.

As shown in FIG. 5, the communication control device of the air conditioner of the present application may include: a communication control module 401 and an abnormality detection module 402.

Among them, the communication control module 401 is used to control the indoor unit and the outdoor unit in the air conditioner to communicate using the first communication parameter, and to control the second communication between the indoor unit and the outdoor unit when communication abnormality occurs between the indoor unit and the outdoor unit. Communication parameters for communication. The abnormality detection module 402 is used to detect the communication between the indoor unit and the outdoor unit, and determine that the communication between the indoor unit and the outdoor unit is abnormal.

In an embodiment of the present application, the first communication parameter is the communication parameter used when the input voltage of the air conditioner is greater than or equal to the preset voltage threshold; the second communication parameter is the communication parameter used when the input voltage of the air conditioner is less than the preset voltage threshold. Communication parameters used.

In an embodiment of the present application, the first communication parameter includes a first communication interval, and the second communication parameter includes a second communication interval, wherein the first communication interval is smaller than the second communication interval.

In an embodiment of the present application, the communication control module 401 is also used to control the communication power supply between the indoor unit and the outdoor unit to be turned off in the first communication interval or the second communication interval; or, to control the indoor unit and the outdoor unit. The current of the communication loop between the machines is less than the preset current threshold.

In another embodiment of the present application, the preset current threshold is greater than or equal to 1 mA, and the preset current threshold is less than or equal to 2 mA.

In another embodiment of the present application, the first communication interval and the second communication interval are greater than or equal to 1 ms, and the first communication interval and the second communication interval are less than or equal to 10 s.

In an embodiment of the present application, the first communication parameter includes: a first baud rate, and the second communication parameter includes a second baud rate; wherein, the first baud rate is less than the second baud rate.

In another embodiment of the present application, the first baud rate and the second baud rate are greater than or equal to 100 bps, and the first baud rate and the second baud rate are less than or equal to 10 Kbps.

In an embodiment of the present application, the first communication parameter includes a first data frame length, and the second communication parameter includes a second data frame length, wherein the first data frame length is greater than the second data frame length.

In another embodiment of the present application, the first communication parameter includes a first communication interval and a first baud rate, and the second communication parameter includes a second communication interval and a second baud rate. The product of one baud rate is smaller than the product of the second communication interval and the second baud rate.

In an embodiment of the present application, the first communication parameter includes a first communication interval, a first baud rate, and a first data frame length; the second communication parameter includes a second communication interval, a second baud rate, and second data Frame length; among them, the first value = the length of the first data frame/(the first communication interval * the first baud rate); the second value = the length of the second data frame/(the second communication interval * the second baud rate) , The first value is greater than the second value.

In an embodiment of the present application, the communication control module 401 is further configured to obtain the duration of abnormal communication between the indoor unit and the outdoor unit, and identify that the duration is greater than or equal to the first preset duration; and/or, obtain the first 2. The number of abnormal communication occurrences between the indoor unit and the outdoor unit within a preset period of time, and the number of abnormal identifications is greater than or equal to the preset number.

In an embodiment of the present application, the abnormality detection module 402 is further configured to detect that the indoor unit does not receive response data fed back by the outdoor unit within the third preset period of time, and determine that a communication abnormality occurs between the indoor unit and the outdoor unit.

In an embodiment of the present application, the abnormality detection module 402 is further configured to detect that the indoor unit receives the response data fed back by the outdoor unit within the fourth preset time period; identify that the response data fed back is abnormal; and determine whether the response data is abnormal. There is an abnormal communication between the indoor unit and the outdoor unit.

In an embodiment of the present application, the communication control module 401 is further configured to obtain the current input voltage of the air conditioner, identify that the input voltage is less than a preset voltage threshold; obtain a second communication parameter that matches the input voltage, and control the indoor unit and The communication parameters between the outdoor units are updated from the first communication parameters to the second communication parameters.

It should be noted that, for details not disclosed in the communication control device of the air conditioner in the embodiment of the present application, please refer to the details disclosed in the communication control method of the air conditioner in the embodiment of the present application, and the details are not repeated here.

Example three

Based on the same concept, the embodiment of the present application also provides an air conditioner corresponding to the device in the second embodiment, see the third embodiment.

As shown in FIG. 6, the air conditioner 500 of the embodiment of the present application may include: the communication control device 400 of the air conditioner described above.

Example four

This application also proposes an electronic device including a memory, a processor, and a program stored in the memory and capable of running on the processor. When the processor executes the program, the communication control method of the air conditioner described above is realized.

Example five

This application also proposes a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the communication control method for the air conditioner described above is realized.

Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

This application is described with reference to flowcharts and/or block diagrams of methods, equipment (systems), and computer program products according to the embodiments of this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

It should be noted that in the claims, any reference signs located between parentheses should not be constructed as limitations on the claims. The word "comprising" does not exclude the presence of parts or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of multiple such components. This application can be realized by means of hardware including several different components and by means of a suitably programmed computer. In the unit claims enumerating several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. do not indicate any order. These words can be interpreted as names.

Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of this application.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application also intends to include these modifications and variations.

Claims

A communication control method for an air conditioner, characterized in that it comprises:

Controlling the indoor unit and the outdoor unit in the air conditioner to use the first communication parameter to communicate;

Detect the communication between the indoor unit and the outdoor unit, and determine that communication abnormality occurs between the indoor unit and the outdoor unit;

Controlling the indoor unit and the outdoor unit to use the second communication parameter to communicate.
The communication control method of an air conditioner according to claim 1, wherein the first communication parameter is a communication parameter used when the input voltage of the air conditioner is greater than or equal to a preset voltage threshold; the second The communication parameter is a communication parameter used when the input voltage of the air conditioner is less than the preset voltage threshold.
The communication control method of an air conditioner according to claim 1 or 2, wherein the first communication parameter includes a first communication interval, and the second communication parameter includes a second communication interval, wherein the first communication interval The communication interval is smaller than the second communication interval.
The communication control method for an air conditioner according to claim 3, further comprising:

Control the communication power supply between the indoor unit and the outdoor unit to be turned off during the first communication interval or the second communication interval; or,

Controlling the current of the communication loop between the indoor unit and the outdoor unit to be less than a preset current threshold.
The communication control method for an air conditioner according to claim 4, wherein the preset current threshold is greater than or equal to 0.5 mA, and the preset current threshold is less than or equal to 50 mA.
The communication control method of an air conditioner according to claim 5, wherein the preset current threshold is greater than or equal to 1 mA, and the preset current threshold is less than or equal to 2 mA.
The communication control method of an air conditioner according to claim 3, wherein the first communication interval and the second communication interval are greater than or equal to 1 ms, and the first communication interval and the second communication interval Less than or equal to 100s.
The communication control method of an air conditioner according to claim 7, wherein the first communication interval and the second communication interval are greater than or equal to 1 ms, and the first communication interval and the second communication interval Less than or equal to 10s.
The communication control method of an air conditioner according to claim 1 or 2, wherein the first communication parameter includes a first baud rate, and the second communication parameter includes a second baud rate, wherein The first baud rate is less than the second baud rate.
The communication control method of an air conditioner according to claim 9, wherein the first baud rate and the second baud rate are greater than or equal to 10 bps, and the first baud rate and the second baud rate The second baud rate is less than or equal to 100Kbps.
The communication control method of an air conditioner according to claim 10, wherein the first baud rate and the second baud rate are greater than or equal to 100 bps, and the first baud rate and the second baud rate The second baud rate is less than or equal to 10Kbps.
The communication control method of an air conditioner according to claim 1 or 2, wherein the first communication parameter includes a first data frame length, and the second communication parameter includes a second data frame length, wherein the The length of the first data frame is greater than the length of the second data frame.
The communication control method of an air conditioner according to claim 12, wherein the first data frame length and the second data frame length are greater than or equal to 1 byte, and the first data frame length and the first data frame length 2. The length of the data frame is less than or equal to 1024 bytes.
The communication control method of an air conditioner according to claim 1 or 2, wherein the first communication parameter includes a first communication interval and a first baud rate, and the second communication parameter includes a second communication interval and The second baud rate, wherein the product of the first communication interval and the first baud rate is smaller than the product of the second communication interval and the second baud rate.
The communication control method of an air conditioner according to claim 1 or 2, wherein the first communication parameter includes a first communication interval, a first baud rate, and a first data frame length; the second communication parameter It includes a second communication interval, a second baud rate, and a second data frame length; where the first value=the first data frame length/(the first communication interval*the first baud rate); Two value=the second data frame length/(the second communication interval*the second baud rate), the first value is greater than the second value.
The communication control method of an air conditioner according to claim 1 or 2, characterized in that, before said controlling the communication between the indoor unit and the outdoor unit using a second communication parameter, the method further comprises:

Acquire the duration of abnormal communication between the indoor unit and the outdoor unit, and identify that the duration is greater than or equal to a first preset duration; and/or,

Acquire the abnormal number of abnormal communication between the indoor unit and the outdoor unit within the second preset time period, and identify that the abnormal number is greater than or equal to the preset number.
The communication control method of an air conditioner according to claim 1 or 2, wherein the communication between the indoor unit and the outdoor unit is detected to determine the difference between the indoor unit and the outdoor unit Abnormal communication occurs between the two, including:

It is detected that the indoor unit has not received response data fed back by the outdoor unit within the third preset period of time, and it is determined that a communication abnormality occurs between the indoor unit and the outdoor unit.
The communication control method of an air conditioner according to claim 1 or 2, wherein the communication between the indoor unit and the outdoor unit is detected to determine the difference between the indoor unit and the outdoor unit Abnormal communication occurs between, including:

Detecting that the indoor unit receives response data fed back by the outdoor unit within a fourth preset time period;

Identify that the feedback response data is abnormal;

According to the abnormality of the response data, it is determined that a communication abnormality occurs between the indoor unit and the outdoor unit.
The communication control method for an air conditioner according to claim 2, wherein said controlling said indoor unit and said outdoor unit to communicate using a second communication parameter comprises:

Acquiring the current input voltage of the air conditioner, and identifying that the input voltage is less than the preset voltage threshold;

Acquire the second communication parameter that matches the input voltage, and control to update the communication parameter between the indoor unit and the outdoor unit from the first communication parameter to the second communication parameter.
The communication control method of an air conditioner according to claim 2 or 19, wherein the preset voltage threshold is greater than or equal to 40V, and the preset voltage threshold is less than or equal to 180V.
The communication control method of an air conditioner according to claim 2 or 19, wherein the preset voltage threshold is greater than or equal to 100V, and the preset voltage threshold is less than or equal to 150V.
A communication control device for an air conditioner, characterized in that it comprises:

The communication control module is used to control the indoor unit and the outdoor unit in the air conditioner to communicate using the first communication parameter, and to control the indoor unit and the outdoor unit when a communication abnormality occurs between the indoor unit and the outdoor unit Use the second communication parameter to communicate between machines;

The abnormality detection module is used to detect the communication between the indoor unit and the outdoor unit, and determine that communication abnormality occurs between the indoor unit and the outdoor unit.
An air conditioner, characterized by comprising: the communication control device of the air conditioner according to claim 22.
An electronic device, characterized in that it comprises a memory, a processor, and a program stored in the memory and running on the processor, wherein the processor executes the program to realize A communication control method for an air conditioner described in any one of the above.
A computer-readable storage medium with a computer program stored thereon, which is characterized in that when the program is executed by a processor, the communication control method for an air conditioner according to any one of claims 1-21 is realized.