CN113432207A - Communication control method and device for indoor and outdoor units of air conditioner, air conditioner and storage medium - Google Patents

Communication control method and device for indoor and outdoor units of air conditioner, air conditioner and storage medium Download PDF

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Publication number
CN113432207A
CN113432207A CN202110686226.1A CN202110686226A CN113432207A CN 113432207 A CN113432207 A CN 113432207A CN 202110686226 A CN202110686226 A CN 202110686226A CN 113432207 A CN113432207 A CN 113432207A
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China
Prior art keywords
communication
air conditioner
temperature
outdoor
low
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CN202110686226.1A
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Chinese (zh)
Inventor
刘湘
张琴兰
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TCL Air Conditioner Zhongshan Co Ltd
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TCL Air Conditioner Zhongshan Co Ltd
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Priority to CN202110686226.1A priority Critical patent/CN113432207A/en
Publication of CN113432207A publication Critical patent/CN113432207A/en
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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/22—Arrangement or mounting thereof
    • 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
    • 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
    • F24F11/52—Indication arrangements, e.g. displays
    • 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
    • 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
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an air conditioner internal and external machine communication control method, an air conditioner internal and external machine communication control device, an air conditioner and a storage medium, and solves the problem of low-temperature communication fault of the internal and external machines of the air conditioner in a low-temperature environment; according to the technical scheme, whether the outdoor temperature is lower than a preset low-temperature threshold value or not is detected by acquiring the outdoor temperature, and if the outdoor temperature is lower than the preset low-temperature threshold value, the working temperature of the electrolytic capacitor is increased to enable the indoor unit and the outdoor unit of the air conditioner to normally communicate; this application technical scheme acquires outdoor temperature, through the operating temperature who improves electrolytic capacitor when outdoor temperature is less than predetermineeing low temperature threshold value in order to reduce its equivalent series resistance of electrolytic capacitor, make the interior outer quick-witted normal communication of air conditioner, through detecting outdoor temperature, intervene in advance and influence the user in case low temperature communication trouble appears and use, reduce low temperature communication trouble frequency of occurrence, reduce the maintenance number of times, solve the problem of interior outer quick-witted low temperature communication trouble that the increase of the equivalent series resistance of the electrolytic capacitor of air conditioner arouses in the low temperature environment.

Description

Communication control method and device for indoor and outdoor units of air conditioner, air conditioner and storage medium
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner indoor and outdoor unit communication control method and device, an air conditioner and a storage medium.
Background
The indoor outer machine communication of domestic variable frequency air conditioner at present adopts the zero live wire communication mode more, and the electric current size receives supply voltage and the loop total resistance in the circuit to influence great, and the equivalent resistance ESR who is used for the electrolytic capacitor of energy storage under the lower temperature is more can the surge very big, thereby arouses the unusual increase of resistance in the loop, makes communication loop current reduce, leads to the opto-coupler can't switch on, the communication trouble of interior outer machine appears, leads to the air conditioner to shut down, influences user normal use.
Disclosure of Invention
The invention provides an air conditioner indoor and outdoor unit communication control method and device, an air conditioner and a storage medium, and solves the problem of low-temperature communication faults of indoor and outdoor units of the air conditioner in a low-temperature environment.
In one aspect, the present application provides a method for controlling communication between an indoor unit and an outdoor unit of an air conditioner, the method comprising:
acquiring outdoor temperature;
detecting whether the outdoor temperature is lower than a preset low-temperature threshold value;
and if the outdoor temperature is lower than the preset low-temperature threshold, the working temperature of an electrolytic capacitor in the communication loop is increased, so that the indoor unit and the outdoor unit of the air conditioner can communicate normally.
In some embodiments of the present application, before the obtaining of the outdoor temperature, the method includes:
acquiring an equipment identifier of an air conditioner, and determining the type of the air conditioner according to the equipment identifier;
and if the type of the air conditioner is the target type, acquiring the outdoor temperature.
In some embodiments of the present application, after increasing the operating temperature of the electrolytic capacitor in the communication loop if the outdoor temperature is lower than a preset low temperature threshold, so that the indoor unit and the outdoor unit of the air conditioner communicate with each other normally, the method includes:
if the communication between the internal machine and the external machine of the air conditioner is abnormal, a communication loop is disconnected;
and detecting the disconnection time of the communication loop, and when the disconnection time of the communication loop reaches a preset time length, the communication loop is conducted so as to enable the communication between the internal machine and the external machine of the air conditioner to be recovered to be normal.
In some embodiments of the present application, the detecting a disconnection time of the communication loop, and after the communication loop is turned on when the disconnection time of the communication loop reaches a preset time, the method includes:
detecting the current, voltage or resistance of the communication loop to judge whether the communication between the internal machine and the external machine of the air conditioner is recovered to be normal;
if the communication between the internal machine and the external machine of the air conditioner is recovered to be normal, determining that the communication fault type of the air conditioner is a low-temperature communication fault;
counting the low-temperature communication fault frequency of the air conditioner, and detecting whether the low-temperature communication fault frequency of the air conditioner reaches a preset frequency threshold value;
and if the low-temperature communication failure frequency of the air conditioner reaches a preset frequency threshold, setting the type of the air conditioner as a target type to execute the operation of acquiring the outdoor temperature.
In some embodiments of the present application, before the obtaining of the outdoor temperature, the method includes:
detecting whether the resistance of a communication loop is larger than a preset resistance threshold value for normal communication of the internal machine and the external machine or whether the power supply voltage is lower than a preset voltage threshold value for normal communication of the internal machine and the external machine;
if the resistance of the communication loop is larger than a preset resistance threshold value for normal communication of the internal machine and the external machine, or the power supply voltage is lower than a preset voltage threshold value for normal communication of the internal machine and the external machine, the communication loop is disconnected;
detecting whether the disconnection time of the communication loop is greater than preset time or not;
when the disconnection time of the communication loop is longer than the preset time, starting the communication loop and judging whether the communication of the communication loop is abnormal or not;
and if the communication of the communication loop is abnormal, executing the operation of acquiring the outdoor temperature.
In some embodiments of the present application, if the outdoor temperature is lower than a preset low temperature threshold, increasing an operating temperature of an electrolytic capacitor in a communication loop, so that normal communication between an indoor unit and an outdoor unit of the air conditioner includes:
if the outdoor temperature is lower than the preset low-temperature threshold, the working temperature of the electrolytic capacitor is increased by starting an outdoor electromechanical heating belt of the air conditioner or starting a compressor self-preheating function of the air conditioner;
and sending prompt information to an indoor unit of the air conditioner when the working temperature of the electrolytic capacitor is adjusted.
In some embodiments of the present application, after increasing the operating temperature of the electrolytic capacitor in the communication loop if the outdoor temperature is lower than a preset low temperature threshold, so that the indoor unit and the outdoor unit of the air conditioner communicate with each other normally, the method further includes:
detecting whether the air conditioner has communication faults of an internal machine and an external machine;
if the air conditioner has communication faults of the internal machine and the external machine, the communication loop is disconnected, and fault prompt information is output;
if the air conditioner has no communication fault between the internal machine and the external machine, the air conditioner operates normally.
In another aspect, the present application provides an apparatus for controlling communication between an air conditioner and an indoor unit, the apparatus including:
the acquisition module is used for acquiring outdoor temperature;
the temperature module is used for detecting whether the outdoor temperature is lower than a preset low-temperature threshold value;
and the control module is used for increasing the working temperature of the electrolytic capacitor in the communication loop if the outdoor temperature is lower than a preset low-temperature threshold value so as to enable the indoor unit and the outdoor unit of the air conditioner to normally communicate.
In another aspect, the present application provides an air conditioner comprising a memory, a processor; the memory stores application programs, and the processor is used for running the application programs in the memory so as to execute the operation in the communication control method of the indoor unit and the outdoor unit of the air conditioner.
In another aspect, the present application provides a storage medium storing a plurality of instructions, where the instructions are suitable for being loaded by a processor to perform the steps in the method for controlling communication between an air conditioner and an indoor unit and an outdoor unit of an air conditioner.
This application embodiment acquires outdoor temperature, through the operating temperature who improves electrolytic capacitor when outdoor temperature is less than predetermineeing low temperature threshold value in order to reduce its equivalent series resistance ESR of electrolytic capacitor, make the interior external machine communication of air conditioner normal, through detecting outdoor temperature, intervene in advance and influence the user in case low temperature communication trouble appears and use, reduce low temperature communication trouble frequency of occurrence, reduce the maintenance number of times, solve the problem of interior external machine low temperature communication trouble that the equivalent series resistance ESR increase of the electrolytic capacitor of air conditioner arouses in the low temperature environment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a communication loop provided in an embodiment of the present application;
fig. 2 is a schematic flowchart of an embodiment of a method for controlling communication between an indoor unit and an outdoor unit of an air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart of an embodiment of a low temperature communication fault solving method in a communication control method for an indoor unit and an outdoor unit of an air conditioner according to the present application;
fig. 4 is a schematic flowchart illustrating an embodiment of determining a communication fault type in a communication control method for an indoor unit and an outdoor unit of an air conditioner according to an embodiment of the present disclosure;
fig. 5 is a schematic flowchart illustrating an embodiment of determining a communication fault in a communication control method for an air conditioner indoor unit and an outdoor unit according to an embodiment of the present disclosure;
fig. 6 is a schematic view of an application scenario of communication control between an indoor unit and an outdoor unit of an air conditioner according to an embodiment of the present application;
fig. 7 is a schematic view of another application scenario of communication control between an indoor unit and an outdoor unit of an air conditioner according to an embodiment of the present application;
fig. 8 is a schematic flowchart of an embodiment of an apparatus for controlling communication between an air conditioner and an indoor unit of an air conditioner according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of an embodiment of an air conditioner according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
The embodiment of the invention provides an air conditioner indoor and outdoor unit communication control method and device, an air conditioner and a storage medium.
According to an embodiment of the method for controlling communication between an air conditioner and an indoor unit and an outdoor unit of an air conditioner provided by the embodiment of the present application, it should be noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and although a logical sequence is shown in the flowchart, in some cases, the steps shown or described may be executed in a sequence different from that shown herein.
In some embodiments of the present application, the method for controlling communication between an indoor unit and an outdoor unit of an air conditioner provided in the embodiments of the present application is applied to the air conditioner. In some embodiments of the present application, the air conditioner may be an industrial air conditioner; in some embodiments of the present application, the air conditioner may be a household air conditioner; in some embodiments of the present application, the air conditioner may be a single air conditioner, such as a cabinet air conditioner or a wall-mounted air conditioner; in some embodiments of the present application, the air conditioner may be an air conditioner group composed of a plurality of air conditioners, a multi-connected air conditioner, for example, a central air conditioner composed of a plurality of air conditioners.
In some embodiments of the present application, an air conditioner includes an indoor unit, an outdoor unit, and a communication loop connecting the indoor unit and the outdoor unit for communication between the indoor unit and the outdoor unit; the outdoor unit comprises a fan and a compressor; the communication loop comprises an outer machine communication electronic circuit, an inner machine communication electronic circuit, an electrolytic capacitor and a power supply electronic circuit; the outer machine communication circuit is connected with the inner machine communication circuit through the power supply circuit to form a communication loop; the electrolytic capacitor is connected with the electronic circuit. The power supply circuit is used for providing electric energy for the electrolytic capacitor, is connected with the live wire and the zero wire and charges the electrolytic capacitor when the communication loop is conducted; the electrolytic capacitor is used for providing energy storage for the communication loop and providing electric energy for the communication loop when the communication loop is conducted.
In some embodiments of the present application, an embodiment structure of a communication loop is described in detail, and for example, as shown in fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a communication loop provided in an embodiment of the present application, where the communication loop includes an internal machine communication sub-circuit 101, an external machine communication sub-circuit 102, an electrolytic capacitor 103, and an electronic supply circuit 104.
The communication loop shown in fig. 1, wherein the indoor unit communication sub-circuit 101 includes a second transistor Q2, a second isolating optocoupler OPT2, a fourth isolating optocoupler OPT4, and a third resistor R3; a base electrode of a second triode Q2 is connected with a TXD1 signal end, a collector electrode of a second triode Q2 is connected with a 1 st pin of a second isolating optocoupler OPT2, an emitter electrode of the second triode Q2 is grounded, a 2 nd pin of a second isolating optocoupler OPT2 is connected with an external machine communication electronic circuit through a first resistor R1, a 3 rd pin of a second isolating optocoupler OPT2 is connected with a 2 nd pin of a fourth isolating optocoupler OPT4, a 4 th pin of a second isolating optocoupler OPT2 and a 4 th pin of a fourth isolating optocoupler OPT4 are electrically connected, a 3 rd pin of a fourth isolating optocoupler OPT4 is connected with an electrolytic capacitor 103, a 1 st pin of the fourth isolating optocoupler OPT4 is connected with an RXD1 signal end, one end of a third resistor R3 is connected with the RXD1 signal end in parallel and then connected with the 1 st pin of the fourth isolating optocoupler OPT4, and the other end of the third resistor R3 is grounded; in some embodiments of the present application, the communication loop is controlled to be disconnected, and the second transistor Q2 may be turned off, so that the second isolation optocoupler OPT2 is disconnected to implement disconnection of the communication loop; in some embodiments of the present application, the communication loop is controlled to be conducted, and the second transistor Q2 may be conducted, so that the second isolation optocoupler OPT2 is conducted to implement the communication loop conduction.
The communication loop shown in fig. 1, wherein the outer-machine communication sub-circuit 102 includes a first transistor Q1, a first isolating optocoupler OPT1, a third isolating optocoupler OPT3, and a second resistor R2; the base electrode of the first triode Q1 is connected with a TXD2 signal end, the collector electrode of the first triode Q1 is connected with the 1 st pin of the first isolating optocoupler OPT1, the emitter electrode of the first triode Q1 is grounded, the 2 nd pin of the first isolating optocoupler OPT1 is connected with the 3 rd pin of the fourth isolating optocoupler, the 3 rd pin of the first isolating optocoupler OPT1 is connected with the 2 nd pin of the second isolating optocoupler OPT2 through a first resistor R1, the 4 th pin of the first isolating optocoupler OPT1 and the 4 th pin of the third isolating optocoupler OPT3 are connected with power, the 2 nd pin of the third isolating optocoupler OPT3 is connected with the electrolytic capacitor 103, the 1 st pin of the third isolating optocoupler OPT3 is connected with an RXD2 signal end, one end of the second resistor R2 is connected with the RXD2 signal end in parallel and then connected with the 1 st pin of the third isolating optocoupler OPT3, and the other end of the second resistor R2 is grounded.
As shown in fig. 1, the anode of the electrolytic capacitor 103 is connected to the 3 rd pin of the fourth isolating optocoupler OPT4, the cathode of the electrolytic capacitor 103 is connected to the 2 nd pin of the third isolating optocoupler OPT3, when the communication loop is turned on for communication, the electrolytic capacitor 103 supplies power to the communication loop, when the current of the communication loop is lower than the normal current of the communication loop, that is, the charging speed of the electrolytic capacitor 103 is lower than the power consumption speed of the communication loop, the second triode Q2 or the first triode Q1 is turned off to disconnect the communication loop, thereby preventing the air conditioner from being stopped due to communication failure, and after the communication loop is disconnected, the electrolytic capacitor 103 only needs to be charged to store energy, so as to prepare for communication loop recovery communication.
As shown in fig. 1, the power supply circuit 104 includes a diode D1, a zener diode D2, and a fourth resistor R4, the anode of the zener diode D2 is connected to the cathode of the electrolytic capacitor 103 and the ac power supply, the cathode of the zener diode D2 is connected to the cathode of the diode D1, the anode of the diode D1 is connected to one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected to the current power supply, so as to supply power to the electrolytic capacitor 103 through the power supply circuit 104, thereby ensuring the normal operation of the communication loop.
As shown in fig. 2, fig. 2 is a schematic flowchart of an embodiment of a method for controlling communication between an indoor unit and an outdoor unit of an air conditioner according to the embodiment of the present application. The communication control method for the indoor unit and the outdoor unit of the air conditioner provided by the embodiment of the application takes the air conditioner as an execution main body for example, and the execution main body is omitted in the embodiment of the application for simplifying the description. The communication control method for the indoor unit and the outdoor unit of the air conditioner comprises the following steps of 201-203:
step 201, acquiring outdoor temperature.
Step 202, detecting whether the outdoor temperature is lower than a preset low-temperature threshold value.
The preset low-temperature threshold is a low-temperature threshold of an electrolytic capacitor in a communication loop of the air conditioner, and for example, when the outdoor temperature is lower than the low-temperature threshold of the electrolytic capacitor in the communication loop of the air conditioner, the equivalent resistance of the electrolytic capacitor is increased, so that the current in the communication loop is reduced, the communication loop is disconnected, and the air conditioner is shut down due to communication failure.
In some embodiments of the present application, it may be determined whether the outdoor temperature is lower than the preset low temperature threshold by calculating a temperature difference between the outdoor temperature and the preset low temperature threshold.
And 203, if the outdoor temperature is lower than the preset low-temperature threshold, increasing the working temperature of the electrolytic capacitor in the communication loop so as to enable the indoor unit and the outdoor unit of the air conditioner to normally communicate.
The working temperature of the electrolytic capacitor is related to the equivalent resistance of the electrolytic capacitor, and when the working temperature of the electrolytic capacitor is reduced, the equivalent resistance of the electrolytic capacitor is increased.
The working temperature of the electrolytic capacitor is increased, so that the equivalent resistance of the electrolytic capacitor can be reduced, the current of the communication loop is increased, the second triode Q2 and the first triode Q1 in the communication loop are conducted, and the communication loop works normally.
In some embodiments of the present application, if the outdoor temperature is lower than the preset low temperature threshold, which indicates that the equivalent resistance of the electrolytic capacitor is increased, and the communication loop has a hidden trouble of communication failure, the operating temperature of the electrolytic capacitor in the communication loop is increased, so that the indoor unit and the outdoor unit of the air conditioner communicate normally.
This application embodiment acquires outdoor temperature, through the operating temperature who improves electrolytic capacitor when outdoor temperature is less than predetermineeing low temperature threshold value in order to reduce its equivalent series resistance ESR of electrolytic capacitor, make the interior outer quick-witted normal communication of air conditioner, through detecting outdoor temperature, intervene in advance and influence the user in case low temperature communication trouble appears and use, reduce low temperature communication trouble frequency of occurrence, reduce the maintenance number of times, solve the problem of interior outer quick-witted low temperature communication trouble that the equivalent series resistance ESR increase of the electrolytic capacitor of air conditioner arouses in the low temperature environment.
In some embodiments of the present application, in order to improve the accuracy of the air conditioner in predicting the low-temperature communication fault, before step 201, the type of the air conditioner is obtained, and it is determined whether the air conditioner is prone to the low-temperature communication fault by using the type of the air conditioner, specifically, steps b 1-b 2 are included:
and b1, acquiring the equipment identifier of the air conditioner, and determining the type of the air conditioner according to the equipment identifier.
The equipment identification of the air conditioner comprises parameter information of the air conditioner and the type of the air conditioner, wherein the parameter information of the air conditioner comprises but is not limited to rated voltage, rated resistance and rated resistance of a compressor of the air conditioner.
The type of the air conditioner is used to indicate the type of communication fault that the air conditioner is prone to, and illustratively, includes a low temperature communication fault and a low voltage communication fault, where the low voltage communication fault is a communication fault caused by a supply voltage of a communication loop being too low.
In some embodiments of the present application, an equipment identifier of the air conditioner is obtained, and a type of the air conditioner is read from the equipment identifier of the air conditioner.
And b2, if the type of the air conditioner is the target type, acquiring the outdoor temperature.
The target type is a target communication fault type that is likely to occur in the air conditioner, and in some embodiments of the present application, the target type is a low temperature communication fault.
In some embodiments of the present application, if the type of the air conditioner is a target type, which indicates that the air conditioner is prone to low-temperature communication failure, the outdoor temperature is obtained, and the low-temperature communication failure is intervened in advance by monitoring the outdoor temperature.
According to the embodiment of the application, the outdoor temperature is obtained, the type of the air conditioner is obtained, prior information is provided through the type of the air conditioner to determine whether the low-temperature communication fault easily occurs in the air conditioner, and the low-temperature communication fault easily occurs in the air conditioner with the low-temperature communication fault, so that the outdoor temperature is monitored to predict whether the low-temperature communication fault occurs, and the accuracy of the air conditioner for predicting the low-temperature communication fault is improved.
In some embodiments of the present application, in order to monitor the operation status of the communication loop of the air conditioner, in step 203, the operation status of the communication loop of the air conditioner is sent to the cloud, and specifically, the method includes steps c1 to c 2:
and c1, if the outdoor temperature is lower than the preset low-temperature threshold, the working temperature of the electrolytic capacitor is increased by starting an outdoor machine electric heating belt of the air conditioner or starting a compressor self-preheating function of the air conditioner.
And c2, when the adjustment of the working temperature of the electrolytic capacitor is finished, sending prompt information to the indoor unit of the air conditioner.
The prompt information is used for prompting that the cloud air conditioner has the hidden danger of low-temperature faults, and the indoor unit of the air conditioner sends the prompt information to the cloud end after receiving the prompt information and reports the hidden danger of low-temperature faults to the cloud end.
In some embodiments of this application, the operating condition of the communication loop of high in the clouds through prompt message monitoring air conditioner specifically includes: the cloud end judges the running state of the communication loop of the air conditioner according to the times of the received prompt messages in the preset time period, if the times of the received prompt messages in the preset time period reach the preset times, the running state of the communication loop of the air conditioner is abnormal, and the adaptability of the air conditioner in the low-temperature environment is poor, the cloud end sends out repair information to prompt a user to maintain.
In the embodiment of the application, when the outdoor temperature is lower than the preset low-temperature threshold, the working temperature of the electrolytic capacitor is improved by starting an outdoor electromechanical heating belt of the air conditioner or starting a compressor self-preheating function of the air conditioner, the equivalent resistance of the electrolytic capacitor is reduced by improving the working temperature of the electrolytic capacitor, and the resistance in a communication loop is changed without adding an additional component; and sending prompt information to the cloud end, so that the cloud end obtains the operation information of the communication loop of the air conditioner in the low-temperature environment, the operation state of the air conditioner in the low-temperature environment is monitored, and the air conditioner is automatically overhauled.
In some embodiments of the present application, in order to guarantee the normal operation of the communication loop of the air conditioner, after step 203, detecting whether the communication loop has a communication fault to guarantee the normal operation of the communication loop, specifically, the method includes steps d 1-d 3:
and d1, detecting whether the air conditioner has communication fault of the indoor unit and the outdoor unit.
In some embodiments of the present application, there are various ways to detect whether there is a communication failure between the indoor unit and the outdoor unit of the air conditioner, which includes, for example:
(1) whether the voltage of the communication loop is lower than a voltage threshold value can be detected; if the voltage of the communication loop is lower than the voltage threshold, judging that the air conditioner has communication faults of the internal machine and the external machine; and if the voltage of the communication loop is greater than or equal to the voltage threshold, judging that the air conditioner has no communication fault between the internal machine and the external machine.
(2) Whether the current of the communication loop is lower than a current threshold value can be detected; if the current of the communication loop is lower than the current threshold, judging that the air conditioner has communication faults of the internal machine and the external machine; and if the current of the communication loop is greater than or equal to the current threshold, judging that the air conditioner has no communication fault between the internal machine and the external machine.
(3) The method can be used for detecting whether the resistance of the communication loop is higher than a resistance threshold value; if the resistance of the communication loop is higher than the resistance threshold value, judging that the air conditioner has communication faults of the internal machine and the external machine; and if the resistance of the communication loop is lower than the resistance threshold value, judging that the air conditioner has no communication fault between the internal machine and the external machine.
It should be noted that the above-mentioned method for detecting whether the air conditioner has the communication fault between the internal machine and the external machine is only an exemplary description, and does not constitute a limitation on the method for detecting the communication fault between the internal machine and the external machine of the air conditioner in the method for controlling the communication between the internal machine and the external machine of the air conditioner provided in the embodiment of the present application.
And d2, if the air conditioner has communication fault between the internal machine and the external machine, disconnecting the communication loop and outputting fault prompt information.
In some embodiments of the present application, if the air conditioner has an internal and external machine communication fault, which indicates that the internal and external machine communication fault is not caused by a low temperature, the second triode Q2 or the first triode Q1 in the communication loop is disconnected, so as to disconnect the communication loop, after waiting for a preset time, the second triode Q2 and the first triode Q1 in the communication loop are turned on, so as to turn on the communication loop, detect whether the air conditioner has the internal and external machine communication fault, and if the internal and external machine communication fault exists, a fault notification message is output to a cloud end, so as to wait for maintenance; if there is no communication fault between the internal and external machines, the air conditioner operates normally.
And d3, if the air conditioner has no communication fault between the indoor unit and the outdoor unit, the air conditioner operates normally.
In this application embodiment, after improving electrolytic capacitor's temperature, whether detect the air conditioner and have interior outer quick-witted communication trouble, guarantee air conditioner's communication loop's normal operating, and when the air conditioner exists interior outer quick-witted communication trouble, through breaking off communication loop, charge the energy storage to electrolytic capacitor, after the disconnection communication loop reaches to predetermineeing for a long time, switch on communication loop, detect communication loop's communication trouble, and output trouble suggestion information to high in the clouds when communication loop exists communication trouble, wait to overhaul, when guaranteeing air conditioner's communication loop's normal operating, the communication trouble of automatic detection air conditioner's communication loop.
In some embodiments of the present application, in order to solve the low-temperature communication fault of the communication loop, after step 203, the communication loop is disconnected to store energy for charging the electrolytic capacitor, so that the communication between the indoor unit and the outdoor unit of the air conditioner is recovered to normal, specifically, as shown in fig. 3, fig. 3 is a schematic flow chart of an embodiment of the method for solving the low-temperature communication fault in the method for controlling the communication between the indoor unit and the outdoor unit of the air conditioner provided in the embodiment of the present application, where the method for solving the low-temperature communication fault includes steps 301 to 302:
step 301, if the communication between the indoor unit and the outdoor unit of the air conditioner is abnormal, the communication loop is disconnected.
In some embodiments of the present application, the manner of opening the communication loop is similar to that in step d2, and is not described herein again.
In some embodiments of the present application, before step 301, it may be detected whether the communication between the indoor unit and the outdoor unit of the air conditioner is abnormal, where the method for detecting whether the communication between the indoor unit and the outdoor unit of the air conditioner is abnormal is similar to the method for detecting whether the communication fault between the indoor unit and the outdoor unit exists in step d1, and details are not repeated here.
And 302, detecting the disconnection time of the communication loop, and conducting the communication loop when the disconnection time of the communication loop reaches a preset time length so as to enable the communication between the indoor unit and the outdoor unit of the air conditioner to be normal.
In some embodiments of the present application, after controlling the air conditioner to disconnect the communication loop, detecting a disconnection time of the communication loop, and when the disconnection time of the communication loop is less than a preset time length, indicating that charging and energy storage of the electrolytic capacitor are not completed, not switching on the communication loop and not determining a communication fault; when the disconnection time of the communication loop reaches the preset time length, which indicates that the charging and energy storage of the electrolytic capacitor is completed, the second triode Q2 and the first triode Q1 in the communication loop are conducted to conduct the communication loop, so that the current of the communication loop is recovered to be normal, and the communication between the internal machine and the external machine of the air conditioner is recovered to be normal.
In some embodiments of the present application, in order to determine whether a communication fault of a communication loop is a low-temperature communication fault, after step 302, it is determined whether the communication fault is a low-temperature communication fault by detecting whether the communication loop is recovered to be normal, specifically, as shown in fig. 4, fig. 4 is a schematic flow chart of an embodiment of determining a communication fault type in an air conditioner indoor and outdoor unit communication control method provided in an embodiment of the present application, where the method for determining the communication fault type includes steps 401 to 404:
step 401, detecting the current, voltage or resistance of the communication loop to judge whether the communication between the indoor unit and the outdoor unit of the air conditioner is recovered to normal.
In some embodiments of the present application, the method for determining whether the communication between the indoor unit and the outdoor unit of the air conditioner is recovered to normal is similar to the method for detecting whether the communication fault between the indoor unit and the outdoor unit exists in the air conditioner in step d1, and therefore, the description thereof is omitted here.
Step 402, if the communication between the internal machine and the external machine of the air conditioner is recovered to be normal, determining that the communication fault type of the air conditioner is a low-temperature communication fault.
In some embodiments of the present application, if the communication between the indoor unit and the outdoor unit of the air conditioner is not restored to normal, which indicates that the communication failure is not caused by low temperature, the repair information is sent to the cloud end; if the communication fault of the internal machine and the external machine is recovered, the communication fault is caused by low temperature, the communication fault type of the air conditioner is determined to be the low temperature communication fault, and the air conditioner is controlled to normally operate.
And step 403, counting the low-temperature communication failure frequency of the air conditioner, and detecting whether the low-temperature communication failure frequency of the air conditioner reaches a preset frequency threshold value.
And step 404, if the low-temperature communication failure frequency of the air conditioner reaches a preset frequency threshold, setting the type of the air conditioner as a target type to execute the operation of acquiring the outdoor temperature.
In some embodiments of the present application, if the number of low-temperature communication failures of the air conditioner reaches a preset number threshold, which indicates that the air conditioner is prone to communication failures caused by low temperature, the type of the air conditioner is set as a target type, where the target type is a type where the low-temperature communication failures are prone to occur; and if the low-temperature communication failure frequency of the air conditioner does not reach a preset frequency threshold value, controlling the air conditioner to normally operate, and detecting whether the air conditioner has a communication failure.
In the embodiment of the application, whether the communication fault is the low-temperature communication fault is determined by detecting whether the communication loop is recovered to be normal or not, the number of times of the low-temperature communication fault is counted when the communication fault is the low-temperature communication fault, the type of the air conditioner is set to be the type which is easy to have the low-temperature fault when the number of times of the low-temperature communication fault reaches a preset number threshold, prior information is provided for the follow-up air conditioner to predict the low-temperature communication fault, and intervention is performed in advance to prevent the low-temperature communication fault from influencing the use of a user.
In some embodiments of the present application, in order to further determine whether a communication fault of the communication loop is caused by a low temperature, before step 201, it is determined whether the communication loop has a communication abnormality, and it is determined whether the communication abnormality is a low-temperature communication fault, specifically, as shown in fig. 5, fig. 5 is a schematic flow chart of an embodiment of determining a communication fault in the communication control method for the indoor unit and the outdoor unit of the air conditioner provided in the embodiment of the present application, where the method for determining a communication fault includes steps 501 to 505:
step 501, detecting whether the resistance of the communication loop is larger than a preset resistance threshold value for normal communication of the internal and external machines, or detecting whether the power supply voltage is lower than a preset voltage threshold value for normal communication of the internal and external machines.
Step 502, if the resistance of the communication loop is larger than a preset resistance threshold value for normal communication of the internal and external machines, or the power supply voltage is lower than a preset voltage threshold value for normal communication of the internal and external machines, the communication loop is disconnected.
In some embodiments of the present application, if the resistance of the communication loop is greater than a preset resistance threshold for normal communication between the internal and external machines, or the power supply voltage is lower than a preset voltage threshold for normal communication between the internal and external machines, which indicates that the current of the communication loop is insufficient, the communication loop is disconnected, so that the electrolytic capacitor is charged to store energy; the manner of opening the communication loop is similar to that of opening the communication loop in step d2, and will not be described herein.
Step 503, detecting whether the disconnection time of the communication loop is greater than a preset time.
Step 504, when the disconnection time of the communication loop is greater than the preset time, the communication loop is opened, and whether the communication of the communication loop is abnormal is judged.
In some embodiments of the present application, the method for determining whether the communication of the communication loop is abnormal is similar to the method for detecting whether the air conditioner has the communication fault of the indoor unit and the outdoor unit in step d1, and therefore, the detailed description thereof is omitted.
And 505, if the communication of the communication loop is abnormal, executing the operation of acquiring the outdoor temperature.
In some embodiments of the present application, if the communication of the communication loop is abnormal, which indicates that the communication is abnormal and is caused by low temperature, the operation of acquiring the outdoor temperature is performed; if the communication of the communication loop is normal, the communication abnormality is caused by insufficient voltage.
In some embodiments of the present application, when the air conditioner is shut down due to a communication fault occurring in the air conditioner, an outdoor temperature may be obtained, and whether the outdoor temperature is lower than a preset low temperature threshold is detected to determine whether the communication fault is a low temperature communication fault.
In some embodiments of the present application, to better explain the method for controlling communication between an air conditioner internal and external units provided in the embodiments of the present application, for example, taking prediction of a low-temperature communication fault of an air conditioner as an example, an application scenario of the communication control between the air conditioner internal and external units in low-temperature communication fault prediction is provided, as shown in fig. 6, fig. 6 is an application scenario schematic diagram of the communication control between the air conditioner internal and external units provided in the embodiments of the present application, and the communication control between the air conditioner internal and external units includes steps e1 to e 8:
and e1, acquiring the type of the air conditioner. And acquiring an equipment identifier of the air conditioner, and determining the type of the air conditioner according to the equipment identifier.
And e2, judging whether the type of the air conditioner is the target type.
And e3, if the type of the air conditioner is the target type, acquiring the outdoor temperature.
And e4, detecting whether the outdoor temperature is lower than a preset low-temperature threshold value.
And e5, if the outdoor temperature is lower than the preset low-temperature threshold, the working temperature of the electrolytic capacitor is increased by starting an outdoor machine electric heating belt of the air conditioner or starting a compressor self-preheating function of the air conditioner.
And e6, detecting whether the air conditioner has communication faults of the indoor unit and the outdoor unit.
And e7, if the air conditioner has communication fault between the internal machine and the external machine, disconnecting the communication loop and outputting fault prompt information.
And e8, if the air conditioner has no communication fault between the indoor unit and the outdoor unit, the air conditioner operates normally and the outdoor temperature is monitored.
According to the method and the device, the outdoor temperature is obtained, and when the outdoor temperature is lower than a preset low-temperature threshold value, intervention is performed in advance to prevent low-temperature communication faults from occurring to influence the use of a user; and the working temperature of the electrolytic capacitor is increased to reduce the Equivalent Series Resistance (ESR) of the electrolytic capacitor, and the normal loop current is recovered, so that the indoor unit and the outdoor unit of the air conditioner can communicate normally, and the problem of low-temperature communication fault of the indoor unit and the outdoor unit caused by the increase of the Equivalent Series Resistance (ESR) of the electrolytic capacitor of the air conditioner in a low-temperature environment is solved.
In some embodiments of the present application, to better describe the method for controlling communication between an indoor unit and an outdoor unit of an air conditioner according to the embodiments of the present application, for example, taking a solution of a low-temperature communication fault of the air conditioner as an example, an application scenario of the communication control between the indoor unit and the outdoor unit of the air conditioner in the solution of the low-temperature communication fault is provided, as shown in fig. 7, fig. 7 is a schematic view of another application scenario of the communication control between the indoor unit and the outdoor unit of the air conditioner according to the embodiments of the present application, where the communication control between the indoor unit and the outdoor unit of the air conditioner includes steps f1 to f 10:
and f1, controlling the air conditioner to normally operate, and judging whether the communication loop has communication abnormity.
Step f2, if the communication loop has communication abnormity, acquiring outdoor temperature; and if the communication loop is not abnormal in communication, the air conditioner operates normally.
And f3, detecting whether the outdoor temperature is lower than a preset low-temperature threshold value.
Step f4, if the outdoor temperature is lower than the preset low-temperature threshold, the working temperature of the electrolytic capacitor is increased, and the communication loop is disconnected; and if the outdoor temperature is not lower than the preset low-temperature threshold, outputting fault prompt information.
And f5, detecting whether the disconnection time of the communication loop reaches a preset time length.
Step f6, if the disconnection time of the communication loop reaches the preset time length, the communication loop is conducted; and if the disconnection time of the communication loop does not reach the preset time length, the communication loop is not conducted.
And f7, detecting whether the communication loop is recovered to normal to determine whether the communication fault is a low-temperature communication fault.
Step f8, if the communication loop returns to normal and the communication fault is determined to be a low-temperature communication fault, counting the frequency of the low-temperature communication fault of the air conditioner; and if the communication loop is not recovered to be normal, indicating that the communication fault is not a low-temperature communication fault, outputting fault prompt information.
And f9, detecting whether the low-temperature communication failure frequency of the air conditioner reaches a preset frequency threshold value.
Step f10, if the low-temperature communication failure frequency of the air conditioner reaches a preset frequency threshold, setting the type of the air conditioner as a target type; and if the low-temperature communication failure frequency of the air conditioner does not reach the preset frequency threshold value, the air conditioner normally operates.
In the embodiment of the application, when the communication between the internal machine and the external machine is abnormal, the normal loop current is recovered by increasing the working temperature of the electrolytic capacitor, and the normal communication between the internal machine and the external machine is protected, so that after-sale maintenance is reduced, and the user experience is improved; and counting the low-temperature communication fault frequency, and when the low-temperature communication fault frequency of the air conditioner reaches a preset frequency threshold value, setting the type of the air conditioner as a target type, providing prior information for subsequent low-temperature communication fault prediction, and improving the accuracy of low-temperature communication fault prediction.
In order to better implement the communication control method for the indoor unit and the outdoor unit of the air conditioner provided in the embodiment of the present application, on the basis of the communication control method for the indoor unit and the outdoor unit of the air conditioner, an embodiment of the present application further provides an indoor unit and outdoor unit communication control device of the air conditioner, as shown in fig. 8, where fig. 8 is a schematic flow chart of an embodiment of the communication control device for the indoor unit and the outdoor unit of the air conditioner provided in the embodiment of the present application, and the illustrated communication control device for the indoor unit and the outdoor unit of the air conditioner includes:
an obtaining module 801, configured to obtain an outdoor temperature;
a temperature module 802, configured to detect whether the outdoor temperature is lower than a preset low temperature threshold;
and the control module 803 is configured to increase the working temperature of the electrolytic capacitor in the communication loop if the outdoor temperature is lower than a preset low-temperature threshold, so that the air conditioner can perform normal communication between the indoor unit and the outdoor unit.
In some embodiments of the present application, the indoor unit and outdoor unit communication control apparatus of an air conditioner further includes a determining module 804;
the judging module 804 is configured to obtain an equipment identifier of an air conditioner, and determine the type of the air conditioner according to the equipment identifier; and if the type of the air conditioner is the target type, acquiring the outdoor temperature.
In some embodiments of the present application, the control module 803 further comprises:
the loop control unit is used for disconnecting the communication loop if the communication between the indoor unit and the outdoor unit of the air conditioner is abnormal;
the time length detection unit is used for detecting the disconnection time of the communication loop; and when the disconnection time of the communication loop reaches the preset time length, the communication loop is conducted so as to enable the communication between the indoor unit and the outdoor unit of the air conditioner to be recovered to be normal.
In some embodiments of the present application, the control module 803 further comprises:
the fault detection unit is used for detecting the current, the voltage or the resistance of the communication loop and judging whether the communication fault of the internal machine and the external machine of the air conditioner is recovered;
the fault type judging unit is used for determining that the communication fault type of the air conditioner is a low-temperature communication fault if the communication fault of the internal machine and the external machine is recovered;
the counting unit is used for counting the low-temperature communication fault frequency of the air conditioner and detecting whether the low-temperature communication fault frequency of the air conditioner reaches a preset frequency threshold value; and if the low-temperature communication failure frequency of the air conditioner reaches a preset frequency threshold, setting the type of the air conditioner as a target type to execute the operation of acquiring the outdoor temperature.
In some embodiments of the present application, the obtaining module 801 is further configured to detect whether a resistance of the communication loop is greater than a preset resistance threshold for normal communication between the internal and external devices, or detect whether a power supply voltage is lower than a preset voltage threshold for normal communication between the internal and external devices;
the control module 803 is further configured to disconnect the communication loop if the resistance of the communication loop is greater than a preset resistance threshold for normal communication between the internal and external machines, or the power supply voltage is lower than a preset voltage threshold for normal communication between the internal and external machines; detecting whether the disconnection time of the communication loop is greater than preset time or not; when the disconnection time of the communication loop is longer than the preset time, starting the communication loop and judging whether the communication of the communication loop is abnormal or not; and if the communication of the communication loop is abnormal, executing the operation of acquiring the outdoor temperature.
In some embodiments of the present application, the control module 803 is further configured to, if the outdoor temperature is lower than a preset low temperature threshold, increase the working temperature of the electrolytic capacitor by turning on an outdoor electromechanical heating belt of the air conditioner or turning on a compressor self-preheating function of the air conditioner; and sending prompt information to an indoor unit of the air conditioner when the working temperature of the electrolytic capacitor is adjusted.
In some embodiments of the present application, the obtaining module 801 is further configured to detect whether there is an indoor/outdoor unit communication fault in the air conditioner;
the control module 803 is further configured to disconnect the communication loop and output a fault prompt message if the air conditioner has an internal and external machine communication fault; if the air conditioner has no communication fault between the internal machine and the external machine, the air conditioner operates normally.
The method and the device for controlling the outdoor temperature of the mobile terminal acquire the outdoor temperature, and intervene in advance to prevent low-temperature communication faults from affecting use of users when the outdoor temperature is lower than a preset low-temperature threshold; and the working temperature of the electrolytic capacitor is increased to reduce the Equivalent Series Resistance (ESR) of the electrolytic capacitor, and the normal loop current is recovered, so that the indoor unit and the outdoor unit of the air conditioner can communicate normally, and the problem of low-temperature communication fault of the indoor unit and the outdoor unit caused by the increase of the Equivalent Series Resistance (ESR) of the electrolytic capacitor of the air conditioner in a low-temperature environment is solved.
An embodiment of the present application further provides an air conditioner, as shown in fig. 9, fig. 9 is a schematic structural diagram of an embodiment of the air conditioner provided in the embodiment of the present application.
The air conditioner integrates any one of the communication control devices for the internal machine and the external machine of the air conditioner provided by the embodiment of the application, and the air conditioner comprises:
a memory, a processor; the memory stores an application program, and the processor is configured to run the application program in the memory to execute the steps of the air conditioner indoor and outdoor unit communication control method in any embodiment of the air conditioner indoor and outdoor unit communication control method to achieve air conditioner indoor and outdoor unit communication control.
The air conditioner may include components such as a processor 901 of one or more processing cores, memory 902 of one or more computer-readable storage media, a power supply 903, and an input unit 904. Those skilled in the art will appreciate that the air conditioner configuration shown in fig. 9 is not intended to be limiting and may include more or fewer components than shown, or some components in combination, or a different arrangement of components. Wherein:
the processor 901 is a control center of the air conditioner, connects various parts of the whole air conditioner by using various interfaces and lines, and performs various functions of the air conditioner and processes data by running or executing software programs and/or modules stored in the memory 902 and calling data stored in the memory 902, thereby performing overall monitoring of the air conditioner. Optionally, processor 901 may include one or more processing cores; preferably, the processor 901 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 901.
The memory 902 may be used to store software programs and modules, and the processor 901 executes various functional applications and data processing by operating the software programs and modules stored in the memory 902. The memory 902 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to the use of the air conditioner, and the like. Further, the memory 902 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 902 may also include a memory controller to provide the processor 901 access to the memory 902.
The air conditioner further comprises a power supply 903 for supplying power to each component, and preferably, the power supply 903 can be logically connected with the processor 901 through a power management system, so that functions of charging, discharging, power consumption management and the like can be managed through the power management system. The power supply 903 may also include any component including one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
The air conditioner may further include an input unit 904, and the input unit 904 may be used to receive input numeric or character information and generate a keyboard, mouse, joystick, optical or trackball signal input related to user setting and function control.
Although not shown, the air conditioner may further include a display unit and the like, which will not be described in detail herein. Specifically, in this embodiment, the processor 901 in the air conditioner loads the executable file corresponding to the process of one or more application programs into the memory 902 according to the following instructions, and the processor 901 runs the application programs stored in the memory 902, so as to implement various functions as follows:
acquiring outdoor temperature;
detecting whether the outdoor temperature is lower than a preset low-temperature threshold value;
and if the outdoor temperature is lower than the preset low-temperature threshold, the working temperature of an electrolytic capacitor in the communication loop is increased, so that the indoor unit and the outdoor unit of the air conditioner can communicate normally.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, an embodiment of the present invention provides a storage medium, where the storage medium is a computer-readable storage medium, and the storage medium stores a plurality of instructions, where the instructions can be loaded by a processor to perform any steps in any method for controlling communication between an air conditioner and an internal/external machine according to an embodiment of the present invention. For example, the instructions may perform the steps of:
acquiring outdoor temperature;
detecting whether the outdoor temperature is lower than a preset low-temperature threshold value;
and if the outdoor temperature is lower than the preset low-temperature threshold, the working temperature of an electrolytic capacitor in the communication loop is increased, so that the indoor unit and the outdoor unit of the air conditioner can communicate normally.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
Wherein the storage medium may include: a Read Only Memory (ROM, Chinese: Read Only Memory), a Random Access Memory (RAM, Random Access Memory, Chinese: Random Access Memory), a magnetic or optical disk, and the like.
Since the instructions stored in the storage medium can execute the steps in any of the methods for controlling communication between an air conditioner and an internal and external machine provided by the embodiments of the present invention, the beneficial effects that can be achieved by any of the methods for controlling communication between an air conditioner and an internal and external machine provided by the embodiments of the present invention can be achieved, which are detailed in the foregoing embodiments and will not be described herein again.
The method, the device, the air conditioner and the storage medium for controlling the communication between the indoor unit and the outdoor unit of the air conditioner provided by the embodiment of the invention are described in detail, a specific example is applied in the description 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 (10)

1. An air conditioner indoor and outdoor unit communication control method is characterized by comprising the following steps:
acquiring outdoor temperature;
detecting whether the outdoor temperature is lower than a preset low-temperature threshold value;
and if the outdoor temperature is lower than the preset low-temperature threshold, the working temperature of an electrolytic capacitor in the communication loop is increased, so that the indoor unit and the outdoor unit of the air conditioner can communicate normally.
2. The communication control method for indoor and outdoor units of an air conditioner according to claim 1, wherein before the outdoor temperature is obtained, the method comprises:
acquiring an equipment identifier of an air conditioner, and determining the type of the air conditioner according to the equipment identifier;
and if the type of the air conditioner is the target type, acquiring the outdoor temperature.
3. The method for controlling communication between an indoor unit and an outdoor unit of an air conditioner as claimed in claim 1, wherein if the outdoor temperature is lower than a preset low temperature threshold, the method further comprises the step of increasing the operating temperature of an electrolytic capacitor in the communication loop so that the indoor unit and the outdoor unit of the air conditioner communicate with each other normally:
if the communication between the internal machine and the external machine of the air conditioner is abnormal, a communication loop is disconnected;
and detecting the disconnection time of the communication loop, and when the disconnection time of the communication loop reaches a preset time length, the communication loop is conducted so as to enable the communication between the internal machine and the external machine of the air conditioner to be recovered to be normal.
4. The method for controlling communication between an indoor unit and an outdoor unit of an air conditioner as claimed in claim 3, wherein the detecting of the off-time of the communication loop, when the off-time of the communication loop reaches a predetermined time, the method comprises, after the communication loop is turned on:
detecting the current, voltage or resistance of the communication loop to judge whether the communication between the internal machine and the external machine of the air conditioner is recovered to be normal;
if the communication between the internal machine and the external machine of the air conditioner is recovered to be normal, determining that the communication fault type of the air conditioner is a low-temperature communication fault;
counting the low-temperature communication fault frequency of the air conditioner, and detecting whether the low-temperature communication fault frequency of the air conditioner reaches a preset frequency threshold value;
and if the low-temperature communication failure frequency of the air conditioner reaches a preset frequency threshold, setting the type of the air conditioner as a target type to execute the operation of acquiring the outdoor temperature.
5. The communication control method for indoor and outdoor units of an air conditioner according to claim 1, wherein before the outdoor temperature is obtained, the method comprises:
detecting whether the resistance of a communication loop is larger than a preset resistance threshold value for normal communication of the internal machine and the external machine or whether the power supply voltage is lower than a preset voltage threshold value for normal communication of the internal machine and the external machine;
if the resistance of the communication loop is larger than a preset resistance threshold value for normal communication of the internal machine and the external machine, or the power supply voltage is lower than a preset voltage threshold value for normal communication of the internal machine and the external machine, the communication loop is disconnected;
detecting whether the disconnection time of the communication loop is greater than preset time or not;
when the disconnection time of the communication loop is longer than the preset time, starting the communication loop and judging whether the communication of the communication loop is abnormal or not;
and if the communication of the communication loop is abnormal, executing the operation of acquiring the outdoor temperature.
6. The method for controlling communication between an indoor unit and an outdoor unit of an air conditioner according to claim 1, wherein if the outdoor temperature is lower than a preset low temperature threshold, the operating temperature of an electrolytic capacitor in the communication loop is increased, specifically:
if the outdoor temperature is lower than the preset low-temperature threshold, the working temperature of the electrolytic capacitor is increased by starting an outdoor electromechanical heating belt of the air conditioner or starting a compressor self-preheating function of the air conditioner;
and sending prompt information to an indoor unit of the air conditioner when the working temperature of the electrolytic capacitor is adjusted.
7. The communication control method for the indoor unit and the outdoor unit of the air conditioner according to any one of claims 1 to 6, wherein after the operating temperature of the electrolytic capacitor in the communication loop is increased if the outdoor temperature is lower than a preset low temperature threshold, the method further comprises:
detecting whether the air conditioner has communication faults of an internal machine and an external machine;
if the air conditioner has communication faults of the internal machine and the external machine, the communication loop is disconnected, and fault prompt information is output;
if the air conditioner has no communication fault between the internal machine and the external machine, the air conditioner operates normally.
8. An air conditioner internal and external machine communication control device, characterized in that the device includes:
the acquisition module is used for acquiring outdoor temperature;
the temperature module is used for detecting whether the outdoor temperature is lower than a preset low-temperature threshold value;
and the control module is used for increasing the working temperature of the electrolytic capacitor in the communication loop if the outdoor temperature is lower than a preset low-temperature threshold value so as to enable the indoor unit and the outdoor unit of the air conditioner to normally communicate.
9. An air conditioner is characterized by comprising a memory and a processor; the memory stores an application program, and the processor is configured to execute the application program in the memory to perform the operations of the air conditioner indoor and outdoor unit communication control method according to any one of claims 1 to 7.
10. A storage medium storing a plurality of instructions, the instructions being adapted to be loaded by a processor to perform the steps of the method for controlling communication between an indoor unit and an outdoor unit of an air conditioner according to any one of claims 1 to 7.
CN202110686226.1A 2021-06-21 2021-06-21 Communication control method and device for indoor and outdoor units of air conditioner, air conditioner and storage medium Pending CN113432207A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
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CN114791157A (en) * 2022-04-15 2022-07-26 珠海格力电器股份有限公司 Communication device of air conditioner outdoor unit and communication system of air conditioner
CN114826314A (en) * 2022-03-11 2022-07-29 珠海格力电器股份有限公司 Communication circuit, control method and device thereof and electronic equipment
CN115218375A (en) * 2022-07-25 2022-10-21 广东万颗子智控科技有限公司 Communication control method and device for indoor unit and outdoor unit of air conditioner, air conditioner and computer storage medium
CN115218377A (en) * 2022-07-29 2022-10-21 广东万颗子智控科技有限公司 Air conditioner indoor and outdoor unit communication fault processing method and air conditioner
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
CN115823699A (en) * 2022-11-24 2023-03-21 宁波奥克斯电气股份有限公司 Commodity inspection control method and device for variable frequency air conditioner, electronic equipment and storage medium

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CN114826314A (en) * 2022-03-11 2022-07-29 珠海格力电器股份有限公司 Communication circuit, control method and device thereof and electronic equipment
CN114791157A (en) * 2022-04-15 2022-07-26 珠海格力电器股份有限公司 Communication device of air conditioner outdoor unit and communication system of air conditioner
CN114791157B (en) * 2022-04-15 2023-09-26 珠海格力电器股份有限公司 Communication device of air conditioner external unit and communication system of air conditioner
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
CN115773564B (en) * 2022-06-23 2024-07-05 珠海格力电器股份有限公司 Air conditioner control method, system, circuit, equipment and storage medium
CN115218375A (en) * 2022-07-25 2022-10-21 广东万颗子智控科技有限公司 Communication control method and device for indoor unit and outdoor unit of air conditioner, air conditioner and computer storage medium
CN115218377A (en) * 2022-07-29 2022-10-21 广东万颗子智控科技有限公司 Air conditioner indoor and outdoor unit communication fault processing method and air conditioner
CN115823699A (en) * 2022-11-24 2023-03-21 宁波奥克斯电气股份有限公司 Commodity inspection control method and device for variable frequency air conditioner, electronic equipment and storage medium
CN115823699B (en) * 2022-11-24 2024-06-11 宁波奥克斯电气股份有限公司 Commercial inspection control method and device of variable frequency air conditioner, electronic equipment and storage medium

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