CN110173803B - Air conditioner, communication control method and device thereof and electronic equipment - Google Patents
Air conditioner, communication control method and device thereof and electronic equipment Download PDFInfo
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- CN110173803B CN110173803B CN201910390456.6A CN201910390456A CN110173803B CN 110173803 B CN110173803 B CN 110173803B CN 201910390456 A CN201910390456 A CN 201910390456A CN 110173803 B CN110173803 B CN 110173803B
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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
- F24F11/32—Responding to malfunctions or emergencies
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
Abstract
The application discloses an air conditioner, a communication control method and device thereof and electronic equipment, wherein the method comprises the following steps: controlling an indoor unit and an outdoor unit in the air conditioner to communicate according to a first communication parameter, wherein the first communication parameter is a communication parameter adopted when the input alternating-current voltage of the air conditioner is smaller than a preset voltage threshold; and detecting and determining that communication abnormity occurs between the indoor unit and the outdoor unit, controlling the power supply and/or the communication power supply of the outdoor unit to be restarted, and controlling the power supply to be continuously communicated according to the first communication parameter after being restarted. According to the control method, the factor that the communication between the indoor unit and the outdoor unit is abnormal due to low voltage can be considered, and the accuracy of communication fault judgment is improved.
Description
Technical Field
The present disclosure relates to the field of air conditioners, and in particular, to an air conditioner, a communication control method and apparatus thereof, and an electronic device.
Background
At present, the communication mode between the indoor unit and the outdoor unit of the inverter air conditioner generally adopts a current loop to perform real-time communication, and the communication between the indoor unit and the outdoor unit generally adopts a communication interval fixed by a master-slave unit mode. When the voltage of a power grid is low to a certain degree, the air conditioner has insufficient current loop power supply voltage, communication abnormality of the indoor unit and the outdoor unit is caused, communication fault reminding is reported, users and maintenance personnel are easily misled, the air conditioner needs maintenance, and the actual air conditioner and the communication between the indoor unit and the outdoor unit are normal but the voltage of the power grid is low.
Disclosure of Invention
The present application is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first objective of the present application is to provide a communication control method for an air conditioner, which takes into account the fact that the voltage of the power grid is low and the communication between the indoor unit and the outdoor unit is abnormal, makes up the deficiency of the false alarm of the communication fault caused by the reduction of the voltage of the power grid, ensures that the air conditioner can accurately detect the indoor and outdoor faults under the low voltage, greatly improves the user experience, and effectively avoids the waste of manpower and financial resources.
A second object of the present application is to provide a communication control apparatus of an air conditioner.
A third object of the present application is to provide an air conditioner.
A fourth object of the present application is to provide an electronic device.
A fifth object of the present application is to propose a computer-readable storage medium.
The embodiment of the application provides a communication control method of an air conditioner, which comprises the following steps: controlling an indoor unit and an outdoor unit in the air conditioner to communicate according to a first communication parameter, wherein the first communication parameter is a communication parameter adopted when the input alternating-current voltage of the air conditioner is smaller than a preset voltage threshold; detecting and determining that communication abnormity occurs between the indoor unit and the outdoor unit, and controlling to restart a power supply and/or a communication power supply of the outdoor unit; and controlling the power supply to continue to communicate according to the first communication parameter after restarting.
In addition, the communication control method of the air conditioner according to the above embodiment of the present application may further have the following additional technical features:
in an embodiment of the present application, before controlling the indoor unit and the outdoor unit in the air conditioner to communicate according to the first communication parameter, the method further includes: and acquiring the current input alternating voltage of the air conditioner, and detecting and identifying that the current input alternating voltage is smaller than the preset voltage threshold.
In an embodiment of the present application, the controlling an indoor unit and an outdoor unit in the air conditioner to communicate according to a first communication parameter includes: and acquiring the first communication parameter matched with the current input alternating voltage, and controlling to update the communication parameter between the indoor unit and the outdoor unit to the first communication parameter.
In an embodiment of the present application, before controlling the indoor unit and the outdoor unit in the air conditioner to communicate according to the first communication parameter, the method further includes: detecting and determining that communication abnormity occurs between the indoor unit and the outdoor unit when communication is performed according to a second communication parameter; and the second communication parameter is a communication parameter adopted when the input alternating voltage of the air conditioner is greater than or equal to the preset voltage threshold.
In an embodiment of the present application, after detecting and determining that a communication abnormality occurs when the indoor unit communicates with the outdoor unit according to the second communication parameter, the method further includes: acquiring the duration of communication abnormity in the communication between the indoor unit and the outdoor unit according to the second communication parameter, and identifying that the duration is greater than or equal to a first preset time; and/or acquiring the abnormal times of communication abnormity between the indoor unit and the outdoor unit within a second preset time, and identifying that the abnormal times is greater than or equal to the first preset times.
In an embodiment of the present application, after the controlling power supply continues to communicate according to the first communication parameter after restarting, the method further includes: acquiring the duration of communication abnormity between the indoor unit and the outdoor unit during communication according to the first communication parameter, identifying that the duration is greater than or equal to a third preset time, and determining that communication faults occur between the indoor unit and the outdoor unit; and/or acquiring abnormal times of communication abnormity between the indoor unit and the outdoor unit during communication according to the first communication parameter within a fourth preset time, identifying that the abnormal times is greater than or equal to a second preset time, and determining that communication faults occur between the indoor unit and the outdoor unit.
In one embodiment of the present application, the first communication parameter comprises at least one of a first communication interval, a first baud rate, and a first data frame length, and the second communication parameter comprises at least one of a second communication interval, a second baud rate, and a second data frame length; wherein the first communication interval is greater than the second communication interval, the first baud rate is greater than the second baud rate, and the first data frame length is less than the second data frame length.
In one embodiment of the present application, the first communication parameters include the first communication interval, the first baud rate, and the first data frame length; the second communication parameters include the second communication interval, the second baud rate, and the second data frame length; wherein a first value is said first data frame length/(said first communication interval is said first baud rate); a second value of said second data frame length/(said second communication interval said second baud rate), said first value being less than said second value.
In one embodiment of the present application, the first communication parameter includes the first communication interval and the first baud rate; the second communication parameters include the second communication interval and the second baud rate; wherein a product of the first communication interval and the first baud rate is greater than a product of the second communication interval and the second baud rate.
In an embodiment of the present application, the detecting and determining that a communication abnormality occurs between the indoor unit and the outdoor unit includes: and detecting that the indoor unit does not receive response data fed back by the outdoor unit within a fifth preset time period, and determining that communication abnormity occurs between the indoor unit and the outdoor unit.
In an embodiment of the present application, the detecting and determining that a communication abnormality occurs between the indoor unit and the outdoor unit further includes; detecting that the indoor unit receives response data fed back by the outdoor unit in a sixth preset time; identifying the abnormality of the feedback response data; and determining that communication abnormity occurs between the indoor unit and the outdoor unit according to the abnormity of the response data.
The embodiment of the application provides a communication control device of an air conditioner, which comprises: the communication control module is used for controlling an indoor unit and an outdoor unit in the air conditioner to communicate according to a first communication parameter, wherein the first communication parameter is a communication parameter adopted when the input alternating-current voltage of the air conditioner is smaller than a preset voltage threshold value; the abnormity detection module is used for detecting and determining that communication abnormity occurs between the indoor unit and the outdoor unit, and controlling and restarting a power supply and/or a communication power supply of the outdoor unit; and the communication control module is also used for controlling the power supply to be restarted and then continuously communicating according to the first communication parameter.
The embodiment of the application provides an air conditioner, includes: the communication control device for the air conditioner is an air conditioner.
The embodiment of the application provides electronic equipment, which comprises a memory, a processor and a program which is stored on the memory and can run on the processor, and is characterized in that when the processor executes the program, the communication control method of the air conditioner is realized.
An embodiment of the present application provides a computer-readable storage medium having stored thereon a computer program, which when executed by a processor, implements the communication control method of the air conditioner described above.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the method and the device have the advantages that the factor that the communication between the indoor unit and the outdoor unit is abnormal due to the fact that the power grid voltage is low can be considered, the defect that the communication fault is mistakenly reported due to the fact that the power grid voltage is reduced is overcome, whether the communication fault occurs between the indoor unit and the outdoor unit or not can be accurately detected by the air conditioner under the low voltage is guaranteed, user experience is greatly improved, and meanwhile waste of manpower and financial resources is effectively avoided.
Drawings
Fig. 1 is a flowchart illustrating a communication control method of an air conditioner according to a first embodiment of the present application;
fig. 2 is a communication circuit diagram of an air conditioner according to a first embodiment of the present application;
fig. 3 is a waveform diagram of a communication interval when communication between an indoor unit and an outdoor unit is started according to a first embodiment of the present application;
fig. 4 is a waveform diagram of baud rate when the indoor unit and the outdoor unit start communication according to the first embodiment of the present application;
fig. 5 is a flowchart illustrating a communication control method of an air conditioner according to a specific example of the embodiment of the present application;
fig. 6 is a block diagram illustrating a communication control apparatus of an air conditioner according to a second embodiment of the present invention;
fig. 7 is a block diagram illustrating a communication control apparatus of an air conditioner according to a second embodiment of the present invention; and
fig. 8 is a block diagram of an air conditioner according to a third embodiment of the present application.
Detailed Description
In order to solve the technical problems that communication between an indoor unit and an outdoor unit of a variable frequency air conditioner generally adopts communication interval communication fixed in a master-slave mode in the prior art, and communication faults of the indoor unit and the outdoor unit caused by insufficient power supply voltage of a current loop exist in a low-voltage state of a power grid, so that misjudgment is caused.
In order to better understand the above technical solutions, exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example one
Fig. 1 is a flowchart of a communication control method of an air conditioner according to a first embodiment of the present application.
In an embodiment of the present application, as shown in fig. 2, a communication circuit of an indoor unit and an outdoor unit according to a communication control method of an air conditioner of the present application mainly includes: an outdoor communication circuit 10 and an indoor communication circuit 20.
Specifically, the outdoor communication circuit 10 may include: the circuit comprises a plurality of resistors (such as resistors R20-R27), a plurality of capacitors (such as capacitors C21-C24), a plurality of diodes (such as diodes D20 and D3), a plurality of photocouplers (such as photocouplers IC20 and IC21), a common-mode inductor L2, a transistor Q101 and the like. The indoor communication circuit 20 may include: the circuit comprises a plurality of resistors (such as resistors R1-R11), a plurality of capacitors (such as capacitors C21-C24), an electrolytic capacitor E1, a plurality of diodes (such as diodes D1-D3), a plurality of photocouplers (such as photocouplers IC2 and IC1), a voltage regulator tube DZ1, a common-mode inductor L1, a transistor Q1 and other components. Among them, the communication power supply 21 may include: the charging circuit comprises a diode D1, resistors R1 and R2, a voltage regulator tube DZ1, an electrolytic capacitor E1 and a capacitor C1, wherein the diode D1, the resistor R1 and the resistor R2 form a charging circuit for charging the electrolytic capacitor E1; photocouplers IC20 and IC21, resistor R20, diodes D20 and D2, resistor R4, photocoupler IC1 and IC2 form a whole current loop communication loop.
Generally, current loops are used for real-time communication between indoor units and outdoor units of air conditioners, for example, communication intervals and frequencies are fixed between the indoor units and the outdoor units in a master-slave mode. However, in a low voltage state, the current loop supply voltage of the air conditioner is insufficient, which causes a failure in communication between the indoor unit and the outdoor unit. Although the power consumption of the current loop can be reduced by adopting a communication mode of prolonging the communication interval, no matter under what voltage state, after a user starts the air conditioner for a long time, the outdoor unit receives a communication instruction of the indoor unit, and then the compressor and the outdoor fan are started, so that the use experience of the user and the cooling and heating effects of the air conditioner can be influenced.
Therefore, the application provides a communication control method of an air conditioner, which can accurately judge whether the communication between an indoor unit and an outdoor unit is abnormal.
As shown in fig. 1, the communication control method of the air conditioner according to the embodiment of the present application may include the steps of:
and S11, controlling the indoor unit and the outdoor unit in the air conditioner to communicate according to a first communication parameter, wherein the first communication parameter is a communication parameter adopted when the input alternating-current voltage of the air conditioner is smaller than a preset voltage threshold value.
In an embodiment of the present application, before controlling an indoor unit and an outdoor unit in an air conditioner to communicate according to a first communication parameter, the method further includes: detecting and determining that communication abnormity occurs between the indoor unit and the outdoor unit when communication is performed according to a second communication parameter; and the communication parameters are adopted when the input alternating voltage of the air conditioner is greater than or equal to the preset voltage threshold. The preset voltage threshold may be calibrated according to actual conditions, for example, a value of the preset voltage threshold may be in a range of [40V, 180V ], and for example, a value of the preset voltage threshold may be in a range of [100V, 150V ].
Further, in an embodiment of the present application, after detecting and determining that a communication abnormality occurs when the indoor unit communicates with the outdoor unit according to the second communication parameter, the method further includes: acquiring the duration of communication abnormity of communication between the indoor unit and the outdoor unit according to a second communication parameter, and identifying that the duration is greater than or equal to a first preset time; and/or acquiring the abnormal times of communication abnormity between the indoor unit and the outdoor unit in a second preset time, and identifying that the abnormal times is greater than or equal to the first preset times. The first preset time, the second preset time and the first preset times can be calibrated according to actual conditions.
Specifically, after the air conditioner is powered on to work, the communication mode with a small normal voltage communication interval is preferentially adopted for communication (the second communication parameter is preferentially adopted for communication), so that after a user starts the air conditioner, the compressor and the outdoor fan can be rapidly started, the refrigerating/heating effect of the air conditioner is guaranteed, and the user experience is improved.
When the indoor unit and the outdoor unit preferentially adopt the second communication parameter for communication, whether the communication between the indoor unit and the outdoor unit is normal or not needs to be judged, and if the communication between the indoor unit and the outdoor unit is not normal, the communication mode needs to be replaced. For example, after the indoor unit sends the communication connection signal to the outdoor unit, if the indoor unit still does not receive the response data fed back by the outdoor unit after a period of time, it is determined that the communication between the indoor unit and the outdoor unit is abnormal.
In order to ensure the accuracy of judging whether the communication is normal, when the communication between the indoor unit and the outdoor unit is abnormal, whether the communication between the indoor unit and the outdoor unit is abnormal is determined according to the duration and/or abnormal times of the communication abnormality. For example, when communication abnormality between the indoor unit and the outdoor unit is judged, the duration time of the communication abnormality between the indoor unit and the outdoor unit is acquired and judged, and if the duration time is greater than or equal to a first preset time length, the communication abnormality between the indoor unit and the outdoor unit can be determined; if the duration time is less than the first preset time, whether the frequency of abnormal communication between the indoor unit and the outdoor unit in the second preset time is more than or equal to the first preset frequency is further judged, if yes, the abnormal communication is judged, and if not, communication delay possibly occurs between the indoor unit and the outdoor unit. For another example, whether the communication abnormality occurs may be determined only according to the duration of the communication abnormality between the indoor unit and the outdoor unit, or whether the communication abnormality occurs may be determined only according to the number of times of the communication abnormality occurring between the indoor unit and the outdoor unit within the second preset time period.
In an embodiment of the present application, before controlling an indoor unit and an outdoor unit in an air conditioner to communicate according to a first communication parameter, the method further includes: the method comprises the steps of obtaining the current input alternating current voltage of the air conditioner, and detecting and recognizing that the current input alternating current voltage is smaller than a preset voltage threshold value.
Specifically, when the indoor unit and the outdoor unit communicate with each other by using the second communication parameter and the communication between the indoor unit and the outdoor unit is abnormal, the current input alternating-current voltage of the air conditioner is acquired and judged. And when the current input alternating voltage is smaller than the preset voltage threshold, controlling the indoor unit and the outdoor unit to communicate according to the first communication parameter.
The first communication parameter may be a fixed value, or a corresponding first communication parameter may be selected according to the magnitude of the input ac voltage, where a table of a correspondence relationship between the input ac voltage and the first communication parameter is stored in advance in the air conditioner.
And S12, detecting and determining that communication abnormity occurs between the indoor unit and the outdoor unit, and controlling the power supply and/or the communication power supply of the outdoor unit to be restarted. The communication power supply may be provided separately or may be mounted on an outdoor unit power supply.
In one embodiment of the present application, detecting and determining that a communication abnormality occurs between an indoor unit and an outdoor unit includes: and detecting that the indoor unit does not receive response data fed back by the outdoor unit within a fifth preset time period, and determining that communication abnormity occurs between the indoor unit and the outdoor unit. And the fifth preset time length can be calibrated according to the actual condition.
Specifically, when the second communication parameter is preferentially adopted for communication between the indoor unit and the outdoor unit, it is further necessary to determine whether the communication between the indoor unit and the outdoor unit is normal, and if not, the communication mode needs to be changed. For example, the indoor unit sends a communication connection signal to the outdoor unit, if the indoor unit does not receive a response signal of the outdoor unit within a period of time (fifth preset time), it is indicated that communication between the indoor unit and the outdoor unit is abnormal, and at this time, the communication power supply in the controller is controlled to restart, that is, a relay in the communication power supply is first opened and then closed.
In another embodiment of the present application, detecting and determining that a communication abnormality occurs between an indoor unit and an outdoor unit further includes: detecting that the indoor unit receives response data fed back by the outdoor unit in a sixth preset time; recognizing that the fed-back response data is abnormal; and determining that communication abnormity occurs between the indoor unit and the outdoor unit according to the abnormity of the response data. And the sixth preset time can be calibrated according to the actual condition.
That is, when the indoor unit receives the response data fed back by the outdoor unit within a period of time (sixth preset time), it is further determined whether the received response data is correct, for example, by checking a waveform diagram of the data feedback, if the received response data is different from a waveform diagram stored in advance, it is indicated that the data fed back by the outdoor unit is abnormal, and at this time, it is determined that the communication between the indoor unit and the outdoor unit is abnormal.
And S13, controlling the power supply to restart and then continuing to communicate according to the first communication parameters.
In one embodiment of the present application, controlling the air conditioner to continue to communicate according to the first communication parameter after the communication power supply is restarted further includes: acquiring the duration of communication abnormity between the indoor unit and the outdoor unit when the indoor unit and the outdoor unit communicate according to the first communication parameter, identifying that the duration is greater than or equal to a third preset time, and determining that communication faults occur between the indoor unit and the outdoor unit; and/or acquiring the abnormal times of communication abnormity between the indoor unit and the outdoor unit in the fourth preset time according to the first communication parameter, identifying that the abnormal times is larger than or equal to the second preset times, and determining that the indoor unit and the outdoor unit have communication faults. And the third preset time length, the fourth preset time length and the second preset times can be calibrated according to actual conditions. The first to fourth preset time periods may be the same or different.
Specifically, after the communication power supply is controlled to restart, after communication is continuously performed according to the first communication parameter, whether communication abnormality occurs between the indoor unit and the outdoor unit is continuously judged, and if the communication abnormality occurs, whether a communication fault occurs between the indoor unit and the outdoor unit is further determined according to the duration and/or the abnormality frequency of the communication abnormality so as to ensure the judgment accuracy. For example, when communication abnormality between the indoor unit and the outdoor unit is judged, the duration time of the communication abnormality between the indoor unit and the outdoor unit is acquired and judged, and if the duration time is greater than or equal to a third preset time length, a communication fault between the indoor unit and the outdoor unit can be determined; if the duration time is less than the third preset time, further judging whether the number of times of communication abnormity between the indoor unit and the outdoor unit in the fourth preset time is more than or equal to the second preset number of times, wherein if yes, the communication fault is judged, and if not, the communication delay possibly occurs between the indoor unit and the outdoor unit. For another example, it may be determined whether a communication fault occurs only according to the duration of the communication abnormality between the indoor unit and the outdoor unit, or whether a communication fault occurs only according to the number of times of the communication abnormality occurring between the indoor unit and the outdoor unit within the fourth preset time period.
After the communication fault between the indoor unit and the outdoor unit is judged, all loads in the air conditioner are controlled to operate according to the communication fault state, namely the compressor stops operating, the indoor fan stops operating, the outdoor fan stops operating and the air guide strip is closed, and a relay in the communication power supply is controlled to be in a closed state all the time.
In one embodiment of the present application, the first communication parameter comprises at least one of a first communication interval, a first baud rate and a first data frame length, and the second communication parameter comprises at least one of a second communication interval, a second baud rate and a second data frame length; the first communication interval is larger than the second communication interval, the first baud rate is larger than the second baud rate, and the length of the first data frame is smaller than that of the second data frame.
Example one: when the first communication parameter includes a first communication interval and the second communication parameter includes a second communication interval, the communication interval is an interval duration for transmitting adjacent data frames, the first communication interval and the second communication interval can be calibrated according to an actual situation, and the first communication interval is greater than the second communication interval. For example, the value of the first communication interval may be in the range of [1ms, 100s ], and the value of the second communication interval may be in the range of [1ms, 100s ]; as another example, the first communication interval may take on a value in the range of [1ms, 10s ], and the second communication interval may take on a value in the range of [1ms, 10s ].
Specifically, as shown in fig. 3, 103 is a timing chart of communication start of the indoor unit and the outdoor unit; 104 is a waveform diagram of communication input voltage of the indoor unit and the outdoor unit, and when the communication interval between the indoor unit and the outdoor unit is small, the input voltage is reduced; conversely, when the communication interval between the indoor unit and the outdoor unit is increased, the input voltage is increased accordingly.
Example two: when the first communication parameter comprises a first baud rate and the second communication parameter comprises a second baud rate, the first baud rate and the second baud rate can be calibrated according to the actual situation, and the first baud rate is greater than the second baud rate, for example, the value of the first baud rate can be in the range of [10bps, 100Kbps ], and the value of the second baud rate can be in the range of [10bps, 100Kbps ]; for another example, the first baud rate may be in the range of [100bps, 10Kbps ], and the second baud rate may be in the range of [100bps, 10Kbps ].
Specifically, as shown in fig. 4, when communication between the indoor unit and the outdoor unit is abnormal, the communication parameter is updated from the first baud rate to the second baud rate, and in order to ensure that communication between the indoor unit and the outdoor unit is normal and reduce the baud rate of communication between the indoor unit and the outdoor unit, the baud rate is changed from B1 to B2, and the time interval t1 is less than t 2.
Note that, after the time shown in fig. 3 is individually amplified at communication intervals, the baud rate waveform shown in fig. 4 can be obtained.
Example three: when the first communication parameter comprises the length of the first data frame and the second communication parameter comprises the length of the second data frame, the length of the first data frame and the length of the second data frame can be calibrated according to the actual situation, and the length of the first data frame is smaller than the length of the second data frame. For example, the first data frame length may have a value in the range of [1byte, 1024byte ], and the second data frame length may have a value in the range of [1byte, 1024byte ]. That is, communication is performed at the second data frame length at normal voltages and at the first data frame length at low voltages or when the input voltage is less than a preset voltage threshold.
Example four: when the first communication parameter includes a first communication interval, a first baud rate, and a first data frame length, and the second communication parameter includes a second communication interval, a second baud rate, and a second data frame length, the first value is the first data frame length/(the first communication interval is the first baud rate); the second data frame length/(second communication interval ×) second baud rate, the first value being less than the second value. That is, after the air conditioner is powered on and works, the second numerical value is preferentially adopted for communication, and when the communication between the indoor unit and the outdoor unit is judged to be abnormal or the input voltage is identified to be smaller than the preset voltage threshold value, the communication is updated to be carried out by adopting the first data.
Example five: when the first communication parameter includes a first communication interval and a first baud rate and the second communication parameter includes a second communication interval and a second baud rate, a product of the first communication interval and the first baud rate is greater than a product of the second communication interval and the second baud rate.
That is, communication is performed at the second communication interval and the second baud rate under a normal voltage, and communication is performed at the first communication interval and the first baud rate under a low voltage condition or when the input voltage is smaller than a preset voltage threshold.
As a specific example, as shown in fig. 5, the communication control method of the air conditioner of the present application may include the steps of:
and S301, electrifying the air conditioner to work.
And S302, controlling the indoor unit and the outdoor unit to communicate according to a normal voltage communication mode (a second communication parameter).
And S303, judging whether communication abnormity occurs when the indoor unit and the outdoor unit communicate with each other at normal voltage. If yes, go to step S304; if not, return to step S302.
And S304, judging whether the duration of the communication abnormity between the indoor unit and the outdoor unit exceeds a first preset time t 1. If yes, go to step S305; if not, return to step S302.
S305, controlling the indoor unit and the outdoor unit to communicate with each other in a low voltage communication mode (first communication parameter).
And S306, judging whether communication abnormity occurs when the indoor unit and the outdoor unit communicate at low voltage. If yes, go to step S307; if not, return to step S305.
And S307, judging whether the duration of the communication abnormity between the indoor unit and the outdoor unit exceeds a third preset time t 2. If yes, go to step S308; if not, return to step S305.
And S308, determining that a communication fault occurs between the indoor unit and the outdoor unit.
And S309, controlling each load in the air conditioner to operate according to the communication fault state.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the method and the device have the advantages that the factor that the communication between the indoor unit and the outdoor unit is abnormal due to the fact that the power grid voltage is low can be considered, the defect that the communication fault is mistakenly reported due to the fact that the power grid voltage is reduced is overcome, whether the communication fault occurs between the indoor unit and the outdoor unit or not can be accurately detected by the air conditioner under the low voltage is guaranteed, user experience is greatly improved, and meanwhile waste of manpower and financial resources is effectively avoided.
Based on the same concept, the embodiment of the application also provides a device corresponding to the method in the first embodiment, which is shown in the second embodiment.
Example two
Fig. 6 is a block diagram illustrating a communication control device of an air conditioner according to a second embodiment of the present invention.
As shown in fig. 6, the communication control device of the air conditioner of the present application may include: a communication control module 401 and an anomaly detection module 402.
The communication control module 401 is configured to control an indoor unit and an outdoor unit in an air conditioner to communicate according to a first communication parameter, where the first communication parameter is a communication parameter used when an input ac voltage of the air conditioner is smaller than a preset voltage threshold. The anomaly detection module 402 is used for detecting and determining that communication anomaly occurs between the indoor unit and the outdoor unit, and controlling the power supply and/or the communication power supply of the outdoor unit to be restarted. The communication control module 401 is further configured to control the power supply to restart and then continue to communicate according to the first communication parameter.
In an embodiment of the present application, as shown in fig. 7, the communication control device of the air conditioner further includes: an obtaining module 403, configured to obtain a current input ac voltage of the air conditioner; the identifying module 404 is configured to detect and identify that the current input ac voltage is smaller than a preset voltage threshold.
In an embodiment of the present application, the communication control module 401 is specifically configured to obtain a first communication parameter matched with the current input ac voltage, and control to update the communication parameter between the indoor unit and the outdoor unit to the first communication parameter.
In an embodiment of the present application, the communication control module 401 is further configured to detect and determine that a communication abnormality occurs when the indoor unit and the outdoor unit communicate according to the second communication parameter; and the second communication parameter is a communication parameter adopted when the input alternating voltage of the air conditioner is greater than or equal to a preset voltage threshold value.
In an embodiment of the present application, the anomaly detection module 402 is further configured to obtain a duration of a communication anomaly occurring in a communication between the indoor unit and the outdoor unit according to the second communication parameter, and identify that the duration is greater than or equal to a first preset duration; and/or acquiring the abnormal times of communication abnormity between the indoor unit and the outdoor unit in a second preset time, and identifying that the abnormal times is greater than or equal to the first preset times.
In an embodiment of the application, the communication control module 401 is further configured to obtain a duration of a communication abnormality occurring when the indoor unit and the outdoor unit communicate according to the first communication parameter, identify that the duration is greater than or equal to a third preset duration, and determine that a communication fault occurs between the indoor unit and the outdoor unit; and/or acquiring the abnormal times of communication abnormity between the indoor unit and the outdoor unit in the fourth preset time according to the first communication parameter, identifying that the abnormal times is larger than or equal to the second preset times, and determining that the indoor unit and the outdoor unit have communication faults.
In one embodiment of the present application, the first communication parameter comprises at least one of a first communication interval, a first baud rate and a first data frame length, and the second communication parameter comprises at least one of a second communication interval, a second baud rate and a second data frame length; the first communication interval is larger than the second communication interval, the first baud rate is larger than the second baud rate, and the length of the first data frame is smaller than that of the second data frame.
In one embodiment of the present application, the first communication parameters include a first communication interval, a first baud rate, and a first data frame length; the second communication parameters include a second communication interval, a second baud rate, and a second data frame length; wherein the first value is a first data frame length/(first communication interval) first baud rate; the second data frame length/(second communication interval ×) second baud rate, the first value being less than the second value.
In one embodiment of the present application, the first communication parameter includes a first communication interval and a first baud rate; the second communication parameters comprise a second communication interval and a second baud rate; wherein a product of the first communication interval and the first baud rate is less than a product of the second communication interval and the second baud rate.
In an embodiment of the present application, the anomaly detection module 402 detects and determines that a communication anomaly occurs between the indoor unit and the outdoor unit, and is specifically configured to detect that the indoor unit does not receive response data fed back by the outdoor unit in a fifth preset time period, and determine that a communication anomaly occurs between the indoor unit and the outdoor unit.
In another embodiment of the present application, the anomaly detection module 402 detects and determines that a communication anomaly occurs between the indoor unit and the outdoor unit, and is specifically configured to detect that the indoor unit receives response data fed back by the outdoor unit in a sixth preset time period; recognizing that the fed-back response data is abnormal; and determining that communication abnormity occurs between the indoor unit and the outdoor unit according to the abnormity of the response data.
It should be noted that, for details not disclosed in the communication control device of the air conditioner in the embodiment of the present application, please refer to details disclosed in the communication control method of the air conditioner in the embodiment of the present application, and details are not repeated herein.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the method and the device have the advantages that the factor that the communication between the indoor unit and the outdoor unit is abnormal due to the fact that the power grid voltage is low can be considered, the defect that the communication fault is mistakenly reported due to the fact that the power grid voltage is reduced is overcome, whether the communication fault occurs between the indoor unit and the outdoor unit or not can be accurately detected by the air conditioner under the low voltage is guaranteed, user experience is greatly improved, and meanwhile waste of manpower and financial resources is effectively avoided.
EXAMPLE III
Based on the same concept, the embodiment of the application also provides an air conditioner corresponding to the device in the second embodiment, which is shown in the third embodiment.
Fig. 8 is a block diagram of an air conditioner according to a third embodiment of the present application.
As shown in fig. 8, the air conditioner 600 according to the embodiment of the present application may include: the communication control device 400 of the air conditioner described above.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the method and the device have the advantages that the factor that the communication between the indoor unit and the outdoor unit is abnormal due to the fact that the power grid voltage is low can be considered, the defect that the communication fault is mistakenly reported due to the fact that the power grid voltage is reduced is overcome, whether the communication fault occurs between the indoor unit and the outdoor unit or not can be accurately detected by the air conditioner under the low voltage is guaranteed, user experience is greatly improved, and meanwhile waste of manpower and financial resources is effectively avoided.
Example four
The application also provides an electronic device, which comprises a memory, a processor and a program which is stored on the memory and can run on the processor, wherein when the processor executes the program, the communication control method of the air conditioner is realized.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the method and the device have the advantages that the factor that the communication between the indoor unit and the outdoor unit is abnormal due to the fact that the power grid voltage is low can be considered, the defect that the communication fault is mistakenly reported due to the fact that the power grid voltage is reduced is overcome, whether the communication fault occurs between the indoor unit and the outdoor unit or not can be accurately detected by the air conditioner under the low voltage is guaranteed, user experience is greatly improved, and meanwhile waste of manpower and financial resources is effectively avoided.
EXAMPLE five
The present application also proposes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the communication control method of the air conditioner described above.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the method and the device have the advantages that the factor that the communication between the indoor unit and the outdoor unit is abnormal due to the fact that the power grid voltage is low can be considered, the defect that the communication fault is mistakenly reported due to the fact that the power grid voltage is reduced is overcome, whether the communication fault occurs between the indoor unit and the outdoor unit or not can be accurately detected by the air conditioner under the low voltage is guaranteed, user experience is greatly improved, and meanwhile waste of manpower and financial resources is effectively avoided.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (13)
1. A communication control method of an air conditioner is characterized by comprising the following steps:
detecting and determining that communication abnormity occurs between the indoor unit and the outdoor unit when communication is performed according to a second communication parameter; the second communication parameter is a communication parameter adopted when the input alternating-current voltage of the air conditioner is greater than or equal to a preset voltage threshold;
acquiring the current input alternating voltage of the air conditioner, and detecting and identifying that the current input alternating voltage is smaller than the preset voltage threshold;
controlling an indoor unit and an outdoor unit in the air conditioner to communicate according to a first communication parameter, wherein the first communication parameter is a communication parameter adopted when the input alternating-current voltage of the air conditioner is smaller than a preset voltage threshold;
detecting and determining that communication abnormity occurs between the indoor unit and the outdoor unit, and controlling to restart a power supply and/or a communication power supply of the outdoor unit;
and controlling the power supply to continue to communicate according to the first communication parameter after restarting.
2. The communication control method of the air conditioner according to claim 1, wherein the controlling of the indoor unit and the outdoor unit of the air conditioner to communicate according to the first communication parameter comprises:
and acquiring the first communication parameter matched with the current input alternating voltage, and controlling to update the communication parameter between the indoor unit and the outdoor unit to the first communication parameter.
3. The method of claim 1, wherein after detecting and determining that a communication anomaly occurs during communication between the indoor unit and the outdoor unit according to the second communication parameter, the method further comprises:
acquiring the duration of communication abnormity in the communication between the indoor unit and the outdoor unit according to the second communication parameter, and identifying that the duration is greater than or equal to a first preset time; and/or the presence of a gas in the gas,
and acquiring the abnormal times of communication abnormity between the indoor unit and the outdoor unit within a second preset time, and identifying that the abnormal times is greater than or equal to a first preset time.
4. The method according to any one of claims 1-3, wherein after the controlling power supply resumes communication according to the first communication parameter after restarting, further comprising:
acquiring the duration of communication abnormity between the indoor unit and the outdoor unit during communication according to the first communication parameter, identifying that the duration is greater than or equal to a third preset time, and determining that communication faults occur between the indoor unit and the outdoor unit; and/or the presence of a gas in the gas,
and acquiring abnormal times of communication abnormity between the indoor unit and the outdoor unit during communication according to the first communication parameter within a fourth preset time, identifying that the abnormal times is greater than or equal to a second preset time, and determining that communication faults occur between the indoor unit and the outdoor unit.
5. The communication control method of an air conditioner according to claim 1, wherein the first communication parameter includes at least one of a first communication interval, a first baud rate, and a first data frame length, and the second communication parameter includes at least one of a second communication interval, a second baud rate, and a second data frame length; wherein the first communication interval is greater than the second communication interval, the first baud rate is greater than the second baud rate, and the first data frame length is less than the second data frame length.
6. The communication control method of an air conditioner according to claim 1, wherein the first communication parameters include a first communication interval, a first baud rate, and a first data frame length; the second communication parameters comprise a second communication interval, a second baud rate and a second data frame length; wherein a first value = the first data frame length/(the first communication interval ×. the first baud rate); a second value = said second data frame length/(said second communication interval ×. said second baud rate), said first value being less than said second value.
7. The communication control method of an air conditioner according to claim 5, wherein the first communication parameter includes the first communication interval and the first baud rate; the second communication parameters include the second communication interval and the second baud rate; wherein a product of the first communication interval and the first baud rate is greater than a product of the second communication interval and the second baud rate.
8. The communication control method of an air conditioner according to any one of claims 1 to 3, wherein the detecting and determining that the communication abnormality occurs between the indoor unit and the outdoor unit includes:
and detecting that the indoor unit does not receive response data fed back by the outdoor unit within a fifth preset time period, and determining that communication abnormity occurs between the indoor unit and the outdoor unit.
9. The communication control method of an air conditioner according to any one of claims 1-3, wherein the detecting and determining that a communication abnormality occurs between the indoor unit and the outdoor unit further comprises;
detecting that the indoor unit receives response data fed back by the outdoor unit in a sixth preset time;
identifying the abnormality of the feedback response data;
and determining that communication abnormity occurs between the indoor unit and the outdoor unit according to the abnormity of the response data.
10. A communication control apparatus of an air conditioner, comprising:
the communication control module is used for controlling an indoor unit and an outdoor unit in the air conditioner to communicate according to a first communication parameter, wherein the first communication parameter is a communication parameter adopted when the input alternating voltage of the air conditioner is smaller than a preset voltage threshold value, and detecting and determining that communication abnormity occurs between the indoor unit and the outdoor unit when communication is carried out according to a second communication parameter, wherein the second communication parameter is a communication parameter adopted when the input alternating voltage of the air conditioner is larger than or equal to the preset voltage threshold value;
the abnormity detection module is used for detecting and determining that communication abnormity occurs between the indoor unit and the outdoor unit, and controlling and restarting a power supply and/or a communication power supply of the outdoor unit; the communication control module is also used for controlling the power supply to restart and then continue to communicate according to the first communication parameter;
the acquisition module is used for acquiring the current input alternating voltage of the air conditioner;
and the identification module is used for detecting and identifying that the current input alternating voltage is smaller than a preset voltage threshold value.
11. An air conditioner, comprising: the communication control apparatus of an air conditioner according to claim 10.
12. An electronic device comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor implements the communication control method of the air conditioner according to any one of claims 1 to 9 when executing the program.
13. A computer-readable storage medium on which a computer program is stored, the program being characterized by implementing a communication control method of an air conditioner according to any one of claims 1 to 9 when executed by a processor.
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