CN113587385B - Communication fault processing method and control system for indoor and outdoor units of air conditioner and air conditioner - Google Patents
Communication fault processing method and control system for indoor and outdoor units of air conditioner and air conditioner Download PDFInfo
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- CN113587385B CN113587385B CN202110788025.2A CN202110788025A CN113587385B CN 113587385 B CN113587385 B CN 113587385B CN 202110788025 A CN202110788025 A CN 202110788025A CN 113587385 B CN113587385 B CN 113587385B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
Abstract
The application provides an air conditioner indoor and outdoor unit communication fault processing method, a control system and an air conditioner, relates to the technical field of air conditioners, solves the problem of indoor and outdoor unit communication faults caused by the fact that an optocoupler CTR can aggravate attenuation, and comprises the steps of obtaining communication fault detection information of indoor and outdoor units of the air conditioner; according to the communication fault detection information, acquiring an outdoor unit inner cavity temperature value and a current on-off state of an air conditioner four-way valve; and adjusting the on-off state of the air conditioner four-way valve according to the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve. This application switches the current operational mode of air conditioner through adjustment air conditioner cross valve on-off state, realizes the purpose of the temperature of adjustment off-premises station inner chamber to solve opto-coupler work extremely low or high temperature down, the problem of interior outer quick-witted communication trouble that opto-coupler CTR can aggravate the decay and arouse, protect the communication function of indoor outer machine better.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to an air conditioner indoor and outdoor unit communication fault processing method, a control system and an air conditioner.
Background
At present, the indoor and outdoor units of the household variable frequency air conditioner are communicated in a zero-live line communication mode, a zero-live line communication circuit is composed of common devices such as a resistor, a capacitor, a diode, a triode, an optocoupler and the like, an additional chip is not needed, and hardware is low in cost, so that the household variable frequency air conditioner is widely applied to the field of household variable frequency air conditioners.
As shown in fig. 1, the zero line and live line communication is a current loop communication mode, the conduction of a current loop in a circuit has a large relationship with the Current Transfer Ratio (CTR) of an optocoupler, and the current transfer ratio is a parameter for describing the control characteristic of the optocoupler, i.e., the percentage of the output current (IO) on the secondary side of the optocoupler and the input current (IF) on the primary side of the optocoupler. After the air conditioner used a period, the opto-coupler CTR produced the decay easily, when the opto-coupler work was extremely low or high temperature down, the opto-coupler CTR can aggravate the decay, because the CTR of opto-coupler is less, can lead to the photic end of opto-coupler promptly the triode end can't switch on to influence the loop and switch on, arouse the interior external machine communication trouble of air conditioner.
Disclosure of Invention
The application provides an air conditioner internal and external machine communication fault processing method, a control system and an air conditioner, and aims to solve the problem that after an air conditioner is used for a period of time, an optical coupler CTR generates attenuation, and when the optical coupler works at an extremely low or high temperature, the optical coupler CTR aggravates attenuation and causes the internal and external machine communication fault.
In one aspect, the present application provides a method for handling communication faults of an indoor unit and an outdoor unit of an air conditioner, including:
acquiring communication fault detection information of indoor and outdoor units of an air conditioner;
acquiring an outdoor unit inner cavity temperature value and a current on-off state of an air conditioner four-way valve according to the communication fault detection information;
and adjusting the on-off state of the air conditioner four-way valve according to the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve.
In a possible implementation of this application, according to communication fault detection information acquires off-premises station inner chamber temperature value and the current on-off state of air conditioner cross valve, includes:
the communication fault detection information comprises normal communication and abnormal communication;
and when the communication fault detection information is abnormal communication, acquiring the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve.
In a possible implementation manner of the present application, adjusting the on-off state of the air conditioner four-way valve according to the temperature value of the outdoor unit inner cavity and the current on-off state of the air conditioner four-way valve comprises:
acquiring adjustment information according to the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve;
and adjusting the on-off state of the four-way valve of the air conditioner according to the adjustment information within a preset first adjustment time length.
In a possible implementation manner of the present application, adjusting an on-off state of an air conditioner four-way valve according to the current temperature value of an inner cavity of the outdoor unit and the on-off state of the air conditioner four-way valve includes:
in the cooling mode of the air conditioner,
comparing the current temperature value of the inner cavity of the outdoor unit with a preset first temperature threshold value to obtain a first comparison result;
if the on-off state of the air conditioner four-way valve is the off state and the first comparison result is that the current temperature value of the inner cavity of the outdoor unit is greater than a preset first temperature threshold value, the adjustment information is opening information, and the opening information indicates that the air conditioner four-way valve is switched to be opened.
In a possible implementation manner of the present application, adjusting an on-off state of an air conditioner four-way valve according to the current temperature value of an inner cavity of the outdoor unit and the on-off state of the air conditioner four-way valve includes:
in the heating mode of the air conditioner,
comparing the current temperature value of the inner cavity of the outdoor unit with a preset second temperature threshold value to obtain a second comparison result;
if the on-off state of the air conditioner four-way valve is the on-off state and the second comparison result is that the current temperature value of the inner cavity of the outdoor unit is smaller than the preset second temperature threshold value, the adjustment information is the off-information, and the on-information indicates that the air conditioner four-way valve is switched to off.
In one possible implementation manner of the present application, the method further includes:
acquiring air deflector adjustment information according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the air deflector adjustment information indicates that the air conditioner air deflector is adjusted to a preset set angle.
In one possible implementation manner of the present application, the method further includes:
acquiring indoor fan rotating speed adjusting information according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the indoor fan rotating speed adjusting information indicates that the rotating speed of the indoor fan of the air conditioner is adjusted to a preset set rotating speed.
In one possible implementation manner of the present application, the method further includes:
acquiring running frequency adjustment information of the compressor according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the compressor frequency adjustment information indicates that the operating frequency of the air conditioner compressor is adjusted to a preset set operating frequency.
In one possible implementation manner of the present application, the method further includes:
when the communication fault detection information is abnormal communication, acquiring a total failure count value of the indoor unit and the outdoor unit of the air conditioner when the communication fault detection information is abnormal communication;
comparing the total failure count value with a preset failure count threshold value to obtain a failure count comparison result;
and when the total number of times of the faults is larger than the threshold value of the number of times of the faults, sending out optocoupler replacement prompt information.
In another aspect, the present application provides a control system, comprising:
the fault detection module is used for acquiring communication fault detection information of the indoor unit and the outdoor unit of the air conditioner;
the information acquisition module acquires an outdoor unit inner cavity temperature value and a current on-off state of the air conditioner four-way valve according to the communication fault detection information;
and the control module is used for adjusting the on-off state of the air conditioner four-way valve according to the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve.
The information acquisition module is specifically configured to:
the communication fault detection information comprises normal communication and abnormal communication;
and when the communication fault detection information is abnormal, the communication fault detection information is used for acquiring the temperature value of the inner cavity of the outdoor unit and the current switching state of the air conditioner four-way valve.
The control module specifically comprises:
the system comprises an outdoor unit, an air conditioner four-way valve, an air conditioner temperature sensor, an air conditioner four-way valve and a control module, wherein the outdoor unit is used for acquiring adjustment information according to the temperature value of an inner cavity of the outdoor unit and the current switching state of the air conditioner four-way valve;
and the four-way valve switching state of the air conditioner is adjusted according to the adjustment information within a preset first adjustment time length.
The control module specifically comprises:
in the cooling mode of the air conditioner,
the temperature control device is used for comparing the current temperature value of the inner cavity of the outdoor unit with a preset first temperature threshold value to obtain a first comparison result;
if the on-off state of the air conditioner four-way valve is the off state and the first comparison result is that the current temperature value of the inner cavity of the outdoor unit is greater than a preset first temperature threshold value, the adjustment information is opening information, and the opening information indicates that the air conditioner four-way valve is switched to be opened.
The control module further specifically comprises:
in the heating mode of the air conditioner,
comparing the current temperature value of the inner cavity of the outdoor unit with a preset second temperature threshold value to obtain a second comparison result;
if the on-off state of the air conditioner four-way valve is the on-off state and the second comparison result is that the current temperature value of the inner cavity of the outdoor unit is smaller than the preset second temperature threshold value, the adjustment information is the off-information, and the on-information indicates that the air conditioner four-way valve is switched to off.
The control module is further specifically:
the system is used for acquiring air deflector adjustment information according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the air deflector adjustment information indicates that the air conditioner air deflector is adjusted to a preset set angle.
The control module further specifically comprises:
the indoor fan rotating speed adjusting device is used for acquiring indoor fan rotating speed adjusting information according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the indoor fan rotating speed adjusting information indicates that the rotating speed of the indoor fan of the air conditioner is adjusted to a preset set rotating speed.
The control module is further specifically:
the system is used for acquiring the running frequency adjustment information of the compressor according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the compressor frequency adjustment information indicates that the operating frequency of the air conditioner compressor is adjusted to a preset set operating frequency.
The control system further comprises a prompt module:
when the communication fault detection information is abnormal communication, the method is used for acquiring a total failure count value of the indoor unit and the outdoor unit of the air conditioner, wherein the total failure count value is used for acquiring the total failure count value of the indoor unit and the outdoor unit of the air conditioner, which have communication faults;
the fault counting module is used for comparing the total failure counting number value with a preset fault number threshold value to obtain a fault number comparison result;
and when the total number of times of the faults is larger than the threshold value of the number of times of the faults, sending out optocoupler replacement prompt information.
In another aspect, the present application further provides an air conditioner, including: the air conditioner comprises an indoor unit, an outdoor unit electric control board, an air conditioner air deflector, an air conditioner indoor fan and an air conditioner compressor, and adopts an air conditioner indoor and outdoor unit communication fault processing method or a control system.
This application detects whether the communication of indoor outer machine is unusual through the communication fault detection information who acquires the indoor outer machine, when the communication is unusual at the indoor outer machine, through judging off-premises station inner chamber temperature value and the current on-off state of air conditioner cross valve, in order to judge whether there is the unusual and current operational mode of air conditioner in off-premises station inner chamber temperature, thereby judge whether the communication of the indoor outer machine that leads to is unusual at the temperature of off-premises station inner chamber under extreme temperature environment is unusual, when the communication is unusual for the communication of the indoor outer machine that leads to for the temperature anomaly of off-premises station inner chamber, switch over the current operational mode of air conditioner through adjusting the on-off state of air conditioner cross valve, realize the purpose of adjusting the temperature of off-premises station inner chamber, in order to solve opto-coupler work under extremely low or high temperature, the problem of the communication trouble of the indoor outer machine that the opto-coupler CTR can aggravate the decay and arouse, protect the communication function of the indoor outer machine better.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art current loop circuit in an embodiment of the present application;
FIG. 2 is a schematic diagram of a linear relationship between a current transmission ratio of an optical coupler and an ambient temperature in an embodiment of the present application;
fig. 3 is a schematic flowchart of an embodiment of a method for processing communication faults between an air conditioner internal and external units according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart of an embodiment of a method for processing communication faults between an air conditioner internal and external units according to the embodiment of the present application;
fig. 5 is a schematic structural diagram of an embodiment of the control system in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
The Current Transfer Ratio (CTR) relation of the conduction of a current loop in the air-conditioning zero-live wire communication circuit and the optical coupler is large, the CTR of the optical coupler can be reduced along with the increase of the service life, the influence of the environmental temperature is large, the linear relation between the current transfer ratio of the optical coupler and the environmental temperature is shown in figure 2, and the CTR value firstly rises and then falls under the condition that IF is certain along with the rise of the working environment temperature of the optical coupler, and the peak value of the CTR is about 0 ℃. Therefore, after the air conditioner has been used for several years, the CTR of the air conditioner will originally attenuate to a certain value, and thus, the operating temperature of the air conditioner is too high or too low, which further aggravates the attenuation of the CTR, resulting in an obstructed communication loop, and the indoor unit and the outdoor unit cannot normally communicate, reporting a communication fault, and affecting the normal use of the user.
As shown in fig. 3, which is a schematic flow chart of an embodiment of a method for processing a communication fault of an air conditioner indoor unit and outdoor unit in the embodiment of the present application, the method for processing a communication fault of an air conditioner indoor unit and outdoor unit includes the following steps 101 to 103:
101. and acquiring communication fault detection information of the indoor and outdoor units of the air conditioner.
In the operation process of the air conditioner, the communication conditions of an indoor unit and an outdoor unit are detected in real time through a fault detection module in a communication current loop circuit between the indoor unit and the outdoor unit of the air conditioner, the fault detection module can be a voltage sensor, a current sensor or a sampling resistor in the communication current loop circuit, and power data of the communication current loop circuit are sent to a control module of the air conditioner through the communication fault detection module, so that the air conditioner can acquire communication fault detection information of the indoor unit and the outdoor unit in real time.
102. And acquiring the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve according to the communication fault detection information.
The communication fault detection information comprises normal communication and abnormal communication;
when the communication fault detection information indicates that the communication is normal, the communication fault does not occur in the indoor unit and the outdoor unit of the air conditioner, and further the temperature of the outdoor unit of the air conditioner does not need to be adjusted, so that the air conditioner is kept in normal operation.
When the communication fault detection information indicates that the communication is abnormal, in order to determine whether the communication of the air conditioner is abnormal due to attenuation of an optical coupler in the air conditioner external unit caused by overhigh or overlow temperature in the air conditioner external unit, the temperature in the air conditioner external unit needs to be detected and the operation mode of the air conditioner needs to be analyzed.
Namely, when the communication fault detection information is abnormal, the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve are obtained.
The temperature value of the inner cavity of the outdoor unit is a current temperature value inside a machine body of the outdoor unit of the air conditioner, the temperature value of the inner cavity of the outdoor unit can be detected by a temperature sensor arranged in the outdoor unit of the air conditioner, and the current on-off state of the four-way valve of the air conditioner means that the four-way valve is in an electrified on state and starts to be in an unpowered off state in the running process of the air conditioner.
103. And adjusting the on-off state of the air conditioner four-way valve according to the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve.
In practical application of the air conditioner, in a refrigeration mode, the copper pipe of the indoor unit is cooled, and the copper pipe of the outdoor unit is heated, and in a heating mode, the copper pipe of the indoor unit is heated, and the copper pipe of the outdoor unit is cooled. The operation mode of the air conditioner is switched by switching the switch of the four-way valve, namely the flow direction of a refrigerant is controlled by switching the four-way valve off when in refrigeration and switching the four-way valve on when in heating, so that the switching between the refrigeration mode and the heating mode of the air conditioner is realized.
Therefore, when the communication fault detection information is communication abnormality, it is analyzed that the communication abnormality of the air conditioner is caused by overhigh or overlow temperature inside the air conditioner outdoor unit, the switching state of the air conditioner four-way valve needs to be adjusted to adjust the temperature of the copper pipe of the outdoor unit, so that the temperature of the inner cavity of the air conditioner outdoor unit is adjusted to solve the problem that the optical coupler inside the air conditioner outdoor unit is attenuated due to overhigh or overlow temperature inside the air conditioner outdoor unit.
This application detects whether the communication of indoor outer machine is unusual through the communication fault detection information who acquires the indoor outer machine, when the communication is unusual at the indoor outer machine, through judging off-premises station inner chamber temperature value and the current on-off state of air conditioner cross valve, in order to judge whether the temperature of off-premises station inner chamber exists unusually and the current running mode of air conditioner, thereby judge whether the communication of the indoor outer machine that leads to is unusual at the temperature of off-premises station inner chamber under extreme temperature environment is unusual, when the communication is unusual for the indoor outer machine communication that leads to for the temperature of off-premises station inner chamber unusually, switch over the current running mode of air conditioner through adjusting the on-off state of air conditioner cross valve, realize the purpose of the temperature of adjustment off-premises station inner chamber, in order to solve opto-coupler work under extremely low or high temperature, the problem of the communication trouble of the indoor outer machine that optocoupler CTR can aggravate the decay and arouse, protect the communication function of the indoor outer machine better.
In another embodiment of this application, according to off-premises station inner chamber temperature value and the current on-off state of air conditioner cross valve, adjust the on-off state of air conditioner cross valve, include:
and acquiring adjustment information according to the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve.
The method comprises the steps of obtaining the current communication fault reason of the air conditioner and obtaining adjustment information by judging the temperature value of an inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve, wherein the adjustment information can be opening information, closing information and maintaining information, the opening information indicates that the air conditioner four-way valve is switched to be opened, the closing information indicates that the air conditioner four-way valve is switched to be closed, and the maintaining information indicates that the air conditioner four-way valve maintains the current on-off state of the air conditioner four-way valve to operate.
And adjusting the on-off state of the four-way valve of the air conditioner according to the adjustment information within a preset first adjustment duration.
After the air conditioner acquires the adjustment information, a control module in the air conditioner executes the adjustment information of the corresponding air conditioner four-way valve, namely, the air conditioner four-way valve is controlled to be opened and closed, and the current on-off state of the air conditioner four-way valve is maintained to run.
When the air conditioner was in the refrigeration mode, air conditioner cross valve on-off state was the state that the air conditioner cross valve closed for not circular telegram, and the operation in-process, indoor set copper pipe becomes cold, and the outdoor unit copper pipe generates heat, if the communication is unusual for the air conditioner appears, need judge whether to lead to the high temperature of outdoor unit inner chamber because of the copper pipe generates heat, lead to opto-coupler CTR's aggravation decay, and then lead to the indoor outer quick-witted communication unusual. Therefore, in another embodiment of the present application, adjusting the on-off state of the air conditioner four-way valve according to the current temperature value of the outdoor unit inner cavity and the on-off state of the air conditioner four-way valve includes:
in the cooling mode of the air conditioner,
and comparing the current temperature value of the inner cavity of the outdoor unit with a preset first temperature threshold value to obtain a first comparison result.
When the air conditioner has a communication fault, comparing the current outdoor unit inner cavity temperature value with a first temperature threshold value to judge whether the current outdoor unit inner cavity temperature value exceeds the first temperature threshold value, wherein the first comparison result can be that the current outdoor unit inner cavity temperature value is less than or equal to the first temperature threshold value and the current outdoor unit inner cavity temperature value is greater than the first temperature threshold value.
If the on-off state of the air-conditioning four-way valve is the off state of the air-conditioning four-way valve and the temperature value of the inner cavity of the current outdoor unit is smaller than or equal to the first temperature threshold value, the adjustment information is maintenance information, and the maintenance information indicates the air-conditioning four-way valve to maintain the operation of the air-conditioning four-way valve in the current on-off state.
Namely, when the air conditioner has communication abnormality and the temperature of the inner cavity of the outdoor unit is not too high, the reason that the air conditioner has communication abnormality in the refrigeration mode can be judged, the reason that the communication abnormality occurs in the air conditioner is not caused by the fact that the temperature of the inner cavity of the outdoor unit is too high, and the four-way valve of the air conditioner does not need to be adjusted.
If the on-off state of the air conditioner four-way valve is the off state of the air conditioner four-way valve and the first comparison result is that the temperature value of the inner cavity of the outdoor unit is greater than a preset first temperature threshold value, the adjusting information is opening information, and the opening information indicates that the air conditioner four-way valve is switched to be opened.
The communication that appears when the air conditioner is unusual promptly, and the temperature of off-premises station inner chamber is higher than the first temperature threshold value of settlement, then can judge, under the refrigeration mode, the unusual reason of communication appears in the air conditioner probably is the high temperature of off-premises station inner chamber and leads to, need adjust the air conditioner cross valve, switch the air conditioner cross valve into opening, be about to the air conditioner by the mode switch of refrigeration mode for the mode operation that heats, through the refrigerated off-premises station copper pipe mode, reduce the temperature of off-premises station inner chamber, be close to the great interval of opto-coupler CTR value with the ambient temperature of opto-coupler work as far as possible, in order to alleviate opto-coupler CTR's aggravation decay, thereby solve the problem of interior outdoor unit communication trouble, in the time of adjustment, try to resume interior outdoor unit normal communication.
The first temperature threshold is preset in the air conditioner, and the first temperature threshold may be manually preset, or the air conditioner may be adaptively set according to the detection of the temperature of the indoor unit.
When the air conditioner is in the mode of heating, air conditioner cross valve on-off state is the state that the air conditioner cross valve opened for the circular telegram, and the operation in-process, indoor set copper pipe generates heat, and the cooling of off-premises station copper pipe, if the communication is unusual appears in the air conditioner, need judge whether to lead to the temperature of off-premises station inner chamber too cold because of the copper pipe excessively low, lead to the aggravation decay of opto-coupler CTR, and then lead to the indoor outer machine communication unusual. Therefore, in another embodiment of the present application, adjusting the on-off state of the air conditioner four-way valve according to the current temperature value of the outdoor unit inner cavity and the on-off state of the air conditioner four-way valve includes:
in the heating mode of the air conditioner,
and comparing the current temperature value of the inner cavity of the outdoor unit with a preset second temperature threshold value to obtain a second comparison result.
When the air conditioner has a communication fault, comparing the current outdoor unit inner cavity temperature value with a second temperature threshold value to judge whether the current outdoor unit inner cavity temperature value exceeds the second temperature threshold value, wherein the second comparison result can be that the current outdoor unit inner cavity temperature value is greater than or equal to the second temperature threshold value and the current outdoor unit inner cavity temperature value is less than the second temperature threshold value.
And if the on-off state of the air conditioner four-way valve is the off state and the temperature value of the inner cavity of the current outdoor unit is greater than or equal to the second temperature threshold value, adjusting the information to be maintenance information, and indicating the air conditioner four-way valve to maintain the operation of the current on-off state of the air conditioner four-way valve by the maintenance information.
Namely, when the air conditioner has communication abnormality and the temperature of the inner cavity of the outdoor unit is not over-low, the air conditioner can judge that the reason of the communication abnormality of the air conditioner is not caused by over-low temperature of the inner cavity of the outdoor unit in the heating mode, and the four-way valve of the air conditioner is not required to be adjusted.
If the on-off state of the air conditioner four-way valve is the on-off state of the air conditioner four-way valve and the second comparison result is that the current temperature value of the inner cavity of the outdoor unit is smaller than the preset second temperature threshold value, the adjustment information is closing information, and the closing information indicates that the air conditioner four-way valve is switched to be closed.
The air conditioner is characterized in that communication abnormity occurs when the air conditioner, the temperature of an inner cavity of the outdoor unit is lower than a set second temperature threshold value, the judgment can be made, and under a heating mode, the reason that the communication abnormity occurs in the air conditioner is probably caused by the fact that the temperature of the inner cavity of the outdoor unit is too low, the air conditioner four-way valve needs to be adjusted, the air conditioner four-way valve is switched to be closed, namely the air conditioner is switched to be operated in the cooling mode from the heating mode, the mode that a copper pipe of the outdoor unit becomes hot is adopted, the temperature of the inner cavity of the outdoor unit is improved, the environment temperature of the work of the optical coupler is close to the interval with the larger CTR value of the optical coupler as much as possible, the aggravation attenuation of the CTR of the optical coupler is relieved, the problem of communication faults of the indoor unit and the outdoor unit is solved, and the normal communication is attempted to be recovered while being adjusted.
The second temperature threshold is preset in the air conditioner, and the second temperature threshold may be manually preset, or may be adaptively set by the air conditioner according to the detection of the temperature of the indoor unit.
In another embodiment of the present application, the method further comprises:
and acquiring the adjustment information of the air deflector according to the communication fault detection information.
When the communication fault detection information indicates that the communication is abnormal, the air deflector adjustment information indicates that the air deflector of the air conditioner is adjusted to a preset set angle.
When the air conditioner is in a cooling mode or a heating mode, and the acquired communication fault detection information is communication abnormity, the air deflector of the air conditioner is indicated to be adjusted to a preset set angle through the air deflector adjustment information, the adjusted set angle is smaller than the initial angle of the air deflector, the set angle of the air deflector is preset in the air conditioner, and the set angle can be manually set in advance or can be set in a self-adaptive manner according to the actual situation.
When the temperature of the inner cavity of the air conditioner outdoor unit is adjusted, the working modes of the air conditioner indoor unit can be switched, the indoor temperature change of the air conditioner is output, the experience of the indoor temperature change of the air conditioner is avoided due to the fact that the indoor temperature change is too large, the setting angle of the air deflector of the air conditioner can be adjusted, the air outlet angle of the air outlet of the indoor unit is adjusted, and the problem that the indoor temperature of the indoor unit is too fast is solved.
In another embodiment of the present application, the method further comprises:
acquiring indoor fan rotating speed adjusting information according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the indoor fan rotating speed adjusting information indicates that the rotating speed of the indoor fan of the air conditioner is adjusted to a preset set rotating speed.
When the air conditioner is in a cooling mode or a heating mode, and the acquired communication fault detection information indicates that the communication is abnormal, the rotating speed of the indoor fan of the air conditioner is adjusted to a preset set rotating speed through the rotating speed adjustment information of the indoor fan, the adjusted set rotating speed of the indoor fan is smaller than the initial rotating speed of the indoor fan, the set rotating speed of the indoor fan is preset in the air conditioner, and the set rotating speed can be manually set in advance or can be set by the air conditioner in a self-adaptive mode according to actual conditions.
When adjusting the outer quick-witted inner chamber temperature of air conditioner, in order to avoid the too big influence of the indoor temperature change at air conditioner place to use experience, can be through the rotational speed of adjusting air conditioner indoor fan to the air-out size of adjusting indoor set, thereby alleviate the too fast problem of indoor temperature change at indoor set place.
In another embodiment of the present application, the method further comprises:
acquiring running frequency adjustment information of the compressor according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the compressor frequency adjustment information indicates that the operating frequency of the air conditioner compressor is adjusted to a preset set operating frequency.
When the air conditioner is in a cooling mode or a heating mode, and the acquired communication fault detection information indicates that the communication is abnormal, the operation frequency of the air conditioner compressor is adjusted to a preset set operation frequency through the compressor frequency adjustment information, the adjusted set operation frequency of the compressor is smaller than the initial operation frequency of the compressor, the set operation frequency of the compressor is preset in the air conditioner, and the set operation frequency can be manually set in advance or can be set by the air conditioner in a self-adaptive manner according to actual conditions.
When the temperature of the inner cavity of the outdoor unit of the air conditioner is adjusted, the temperature change in the cavity of the compressor of the outdoor unit is slowed down by reducing the frequency of the compressor, so that the communication fault caused by the rapid temperature change of the inner cavity of the outdoor unit due to the over-high running frequency of the compressor is avoided.
In another embodiment of the present application, as shown in fig. 4, the method further includes 201 to 203:
201. and when the communication fault detection information is abnormal communication, acquiring a total failure count value of the indoor unit and the outdoor unit of the air conditioner when the communication fault detection information is abnormal communication.
The total failure frequency value of the communication failure of the indoor and outdoor units of the air conditioner can be any natural number larger than 1, and when the communication failure occurs in the air conditioner, the total failure frequency value is counted through a counter of a control module in the air conditioner.
202. And comparing the total failure count value with a preset failure count threshold value to obtain a failure count comparison result.
When the air conditioner has a communication fault, comparing the total fault count value with a fault count threshold value to judge whether the total fault count value exceeds the fault count threshold value, wherein the fault count comparison result can indicate that the total fault count value is smaller than the fault count threshold value and the total fault count value is greater than or equal to the fault count threshold value. The failure frequency threshold is preset in the air conditioner, and may be manually set in advance or may be set adaptively.
203. And when the total failure count value is greater than the failure count threshold value, sending out optocoupler replacement prompt information.
When total number of times numerical value of trouble is greater than the failure number of times threshold value, promptly the opto-coupler in the air conditioner outdoor unit has reached life, opto-coupler CTR has attenuated value limit value, needs to change the opto-coupler in the air conditioner outdoor unit, then sends opto-coupler change prompt message through the information prompt module of air conditioner, and the opto-coupler change prompt message can carry out acousto-optic warning through the display panel of air conditioner, perhaps changes prompt message transmission to user terminal with the opto-coupler through wireless communication module through the information prompt module.
In order to better implement the method for processing the communication fault between the indoor unit and the outdoor unit of the air conditioner in the embodiment of the present application, on the basis of the method for processing the communication fault between the indoor unit and the outdoor unit of the air conditioner, in another embodiment of the present application, a control system is further provided, as shown in fig. 5, where the control system 300 includes:
the fault detection module 301 is used for acquiring communication fault detection information of the indoor unit and the outdoor unit of the air conditioner;
the information acquisition module 302 is used for acquiring the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve according to the communication fault detection information;
and the control module 303 is used for adjusting the on-off state of the air conditioner four-way valve according to the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve.
The information obtaining module 302 is specifically configured to:
the communication fault detection information comprises normal communication and abnormal communication;
and when the communication fault detection information is abnormal, the method is used for acquiring the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve.
The control module 303 is specifically:
the system comprises an outdoor unit, an air conditioner four-way valve and a temperature sensor, wherein the outdoor unit is used for acquiring indoor temperature values of the outdoor unit and current on-off states of the air conditioner four-way valve;
and the control device is used for adjusting the on-off state of the four-way valve of the air conditioner according to the adjustment information within a preset first adjustment duration.
The control module 303 is specifically:
in the cooling mode of the air conditioner,
the temperature control device is used for comparing the current temperature value of the inner cavity of the outdoor unit with a preset first temperature threshold value to obtain a first comparison result;
if the on-off state of the air conditioner four-way valve is the off state of the air conditioner four-way valve and the first comparison result is that the current temperature value of the inner cavity of the outdoor unit is larger than a preset first temperature threshold value, the adjusting information is opening information, and the opening information indicates that the air conditioner four-way valve is switched to be opened.
The control module 303 further specifically includes:
in the heating mode of the air conditioner,
comparing the current temperature value of the inner cavity of the outdoor unit with a preset second temperature threshold value to obtain a second comparison result;
if the on-off state of the air conditioner four-way valve is the on state of the air conditioner four-way valve and the second comparison result is that the current temperature value of the inner cavity of the outdoor unit is smaller than the preset second temperature threshold value, the adjusting information is closing information, and the opening information indicates that the air conditioner four-way valve is switched to be closed.
The control module 303 further specifically includes:
the system is used for acquiring air deflector adjustment information according to the communication fault detection information;
when the communication fault detection information indicates that the communication is abnormal, the air deflector adjustment information indicates that the air deflector of the air conditioner is adjusted to a preset set angle.
The control module 303 further specifically includes:
the indoor fan rotating speed adjusting device is used for acquiring indoor fan rotating speed adjusting information according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the indoor fan rotating speed adjusting information indicates that the rotating speed of the indoor fan of the air conditioner is adjusted to a preset set rotating speed.
The control module 303 further specifically includes:
the system is used for acquiring the running frequency adjustment information of the compressor according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the compressor frequency adjustment information indicates that the operating frequency of the air conditioner compressor is adjusted to a preset set operating frequency.
The control system further comprises a prompt module:
when the communication fault detection information is communication abnormality, the method is used for acquiring a total fault counting number of the indoor and outdoor units of the air conditioner, which have communication faults;
the fault counting module is used for comparing the total failure counting number value with a preset fault number threshold value to obtain a fault number comparison result;
and when the total failure count value is greater than the failure count threshold value, sending out optocoupler replacement prompt information.
In another embodiment of the present application, there is also provided an air conditioner, characterized in that the air conditioner includes: the air conditioner comprises an indoor unit, an outdoor unit electric control board, an air conditioner air deflector, an air conditioner indoor fan and an air conditioner compressor, and adopts an air conditioner indoor and outdoor unit communication fault processing method or a control system.
The communication fault processing method, the control system and the air conditioner for the air conditioner indoor and outdoor unit provided by the embodiment of the application are introduced in detail, a specific example is applied to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. A communication fault processing method for an indoor unit and an outdoor unit of an air conditioner is characterized by comprising the following steps:
acquiring communication fault detection information of indoor and outdoor units of an air conditioner;
acquiring an outdoor unit inner cavity temperature value and a current on-off state of an air conditioner four-way valve according to the communication fault detection information;
the communication fault detection information comprises normal communication and abnormal communication;
when the communication fault detection information is abnormal communication, acquiring the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve;
adjusting the on-off state of the air conditioner four-way valve according to the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve;
in the cooling mode of the air conditioner,
comparing the current temperature value of the inner cavity of the outdoor unit with a preset first temperature threshold value to obtain a first comparison result;
and if the on-off state of the air conditioner four-way valve is the off state and the first comparison result is that the current temperature value of the inner cavity of the outdoor unit is greater than a preset first temperature threshold value, adjusting information to be opening information, wherein the opening information indicates that the air conditioner four-way valve is switched to be opened.
2. The method for handling the communication fault between the indoor unit and the outdoor unit of the air conditioner as claimed in claim 1, wherein the adjusting the on-off state of the four-way valve of the air conditioner according to the temperature value of the indoor unit and the current on-off state of the four-way valve of the air conditioner comprises:
acquiring adjustment information according to the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve;
and adjusting the on-off state of the four-way valve of the air conditioner according to the adjustment information within a preset first adjustment duration.
3. The method for processing communication failure between an indoor unit and an outdoor unit of an air conditioner as claimed in claim 2, wherein the adjusting the on-off state of the four-way valve of the air conditioner according to the current temperature value of the indoor unit and the on-off state of the four-way valve of the air conditioner comprises:
in the heating mode of the air conditioner,
comparing the current temperature value of the inner cavity of the outdoor unit with a preset second temperature threshold value to obtain a second comparison result;
if the on-off state of the air conditioner four-way valve is the on state of the air conditioner four-way valve and the second comparison result is that the current temperature value of the inner cavity of the outdoor unit is smaller than a preset second temperature threshold value, the adjusting information is closing information, and the closing information indicates that the air conditioner four-way valve is switched to be closed.
4. The communication fault handling method for the indoor unit and the outdoor unit of the air conditioner as claimed in claim 1, further comprising:
acquiring air deflector adjustment information according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the air deflector adjustment information indicates that the air conditioner air deflector is adjusted to a preset set angle.
5. The communication fault handling method for the indoor unit and the outdoor unit of the air conditioner as claimed in claim 1, further comprising:
acquiring indoor fan rotating speed adjusting information according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the indoor fan rotating speed adjustment information indicates that the rotating speed of the indoor fan of the air conditioner is adjusted to a preset set rotating speed.
6. The communication fault handling method for the indoor and outdoor units of the air conditioner as claimed in claim 1, further comprising:
acquiring running frequency adjustment information of the compressor according to the communication fault detection information;
and when the communication fault detection information indicates that the communication is abnormal, the compressor frequency adjustment information indicates that the operating frequency of the air conditioner compressor is adjusted to a preset set operating frequency.
7. The communication fault handling method for the indoor and outdoor units of the air conditioner as claimed in claim 1, further comprising:
when the communication fault detection information is abnormal communication, acquiring a total failure count value of the indoor unit and the outdoor unit of the air conditioner when the communication fault detection information is abnormal communication;
comparing the total failure count value with a preset failure count threshold value to obtain a failure count comparison result;
and when the total number of times of the faults is larger than the threshold value of the number of times of the faults, sending out optocoupler replacement prompt information.
8. A control system, characterized in that the control system comprises:
the fault detection module is used for acquiring communication fault detection information of the indoor unit and the outdoor unit of the air conditioner;
the information acquisition module acquires an outdoor unit inner cavity temperature value and a current on-off state of the air conditioner four-way valve according to the communication fault detection information;
the information acquisition module specifically comprises:
the communication fault detection information comprises normal communication and abnormal communication;
when the communication fault detection information is abnormal communication, acquiring the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve;
the control module is used for adjusting the on-off state of the air conditioner four-way valve according to the temperature value of the inner cavity of the outdoor unit and the current on-off state of the air conditioner four-way valve;
the control module specifically comprises:
in the cooling mode of the air conditioner,
comparing the current temperature value of the inner cavity of the outdoor unit with a preset first temperature threshold value to obtain a first comparison result;
if the on-off state of the air conditioner four-way valve is the off state and the first comparison result is that the current temperature value of the inner cavity of the outdoor unit is larger than a preset first temperature threshold value, adjusting information to be opening information, wherein the opening information indicates that the air conditioner four-way valve is switched to be opened.
9. An air conditioner, characterized in that the air conditioner comprises: the air conditioner comprises an indoor unit, an outdoor unit electric control board, an air conditioner air deflector, an air conditioner indoor fan and an air conditioner compressor, and the air conditioner adopts the communication fault processing method of the indoor unit and the outdoor unit of the air conditioner or the control system of claim 8 in any one of claims 1 to 7.
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| CN114826314B (en) * | 2022-03-11 | 2023-05-12 | 珠海格力电器股份有限公司 | Communication circuit, control method and device thereof and electronic equipment |
| CN115183347A (en) * | 2022-06-21 | 2022-10-14 | 青岛海尔空调电子有限公司 | Control method of air conditioning system and air conditioning system |
| CN115773564A (en) * | 2022-06-23 | 2023-03-10 | 珠海格力电器股份有限公司 | Air conditioner control method, system, circuit, equipment and storage medium |
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