CN113154523A - Multi-split air conditioning system communication fault detection method and device and multi-split air conditioning system - Google Patents
Multi-split air conditioning system communication fault detection method and device and multi-split air conditioning system Download PDFInfo
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- CN113154523A CN113154523A CN202110571894.XA CN202110571894A CN113154523A CN 113154523 A CN113154523 A CN 113154523A CN 202110571894 A CN202110571894 A CN 202110571894A CN 113154523 A CN113154523 A CN 113154523A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 67
- 238000004891 communication Methods 0.000 title claims abstract description 48
- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 239000003507 refrigerant Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000004590 computer program Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000012937 correction Methods 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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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
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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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
- F24F11/38—Failure diagnosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
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Abstract
The invention discloses a method and a device for detecting communication faults of a multi-split air conditioning system and the multi-split air conditioning system, which can adjust the communication sequence of an outdoor unit by detecting the pressure values of the front parts of heat exchangers of a plurality of indoor units and comparing the pressure values with the pressure values of refrigerant when indoor units and the outdoor unit are installed and connected in a wrong way, so that the control and the communication of an electronic expansion valve connected with a liquid pipe of the indoor unit are kept consistent, the detection method and the reset of the internal control of the system are realized during installation, the purposes of safety error correction and fault tolerance are achieved, and the reliable operation of the system is finally ensured.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for detecting communication faults of a multi-split air conditioning system and the multi-split air conditioning system.
Technical Field
At present, the existing multi-split air conditioning system is connected in a one-to-one correspondence manner of outdoor unit stop valves and indoor unit stop valves, the number of 1 outdoor unit connectable to 2-5 indoor units, and each indoor unit is separately communicated with the outdoor unit, that is, each indoor unit needs an independent communication line and power line.
The following problems are liable to occur:
1. if the indoor unit and the outdoor unit are not in one-to-one correspondence with each other, the situation that the refrigeration system cannot complete circulation and cannot normally operate occurs;
2. if the communication line and the power line of the indoor unit are not correctly connected with the corresponding wiring terminal of the outdoor unit, the indoor unit cannot be started, the system cannot normally operate, and even the system can be damaged when the machine is partially opened from full opening.
The technical reasons for the problems are:
1. the electronic expansion valves of the indoor units are moved in the outdoor unit system, and the refrigerant can enter the indoor units after passing through the corresponding electronic expansion valve of each indoor unit and then passing through the liquid pipe where the corresponding liquid side stop valve is located;
2. the communication between the indoor unit and the outdoor unit is controlled in a non-integrated mode, and each indoor unit is independently communicated with the outdoor unit;
3. the inexpert and non-standard operation of an installer causes that the system cannot be used normally, and the fault tolerance is allowed to be installed in design.
Disclosure of Invention
In view of the above problems in the prior art, the present invention solves the problem of achieving the purposes of installation error correction and fault tolerance by system detection and reset, so that the air conditioning system can operate normally, and the convenience of installation and use of the multi-split air conditioning system is improved.
In order to achieve the aim, the invention provides a communication fault detection method of a multi-split air conditioning system, which comprises the following steps:
after the multi-split air conditioning system is started for the first time, entering a detection mode, and detecting a plurality of indoor unit parameters, wherein the air conditioning parameters comprise a front pressure value of an indoor unit heat exchanger and an indoor unit refrigerant pressure value;
and comparing the detected parameters of the multi-split air-conditioning system, and controlling the multi-split air-conditioning system according to the comparison result.
In the preferable technical scheme of the invention, in the step of entering a detection mode and detecting a plurality of indoor unit parameters after the multi-split air conditioning system is started for the first time, the method further comprises the steps of temporarily shielding various frequency limiting and protecting functions of the system, enabling the compressor to operate at 30Hz all the time, and displaying FF by a display panel.
In the preferable technical scheme of the invention, the front pressure value of the heat exchanger of the indoor unit comprises ｃA front pressure value P-A of the heat exchanger of the indoor unit A, ｃA front pressure value P-B of the heat exchanger of the indoor unit B, ｃA front pressure value P-C of the heat exchanger of the indoor unit C, ｃA front pressure value P-D of the heat exchanger of the indoor unit D and ｃA front pressure value P-E of the heat exchanger of the indoor unit E.
In a preferred technical scheme of the invention, the indoor unit refrigerant pressure value comprises an indoor unit refrigerant pressure value P-1, an indoor unit refrigerant pressure value P-2, an indoor unit refrigerant pressure value P-3, an indoor unit refrigerant pressure value P-4 and an indoor unit refrigerant pressure value P-5.
In the preferred technical scheme of the invention, the step of comparing according to the detected data of the multi-split air-conditioning system and controlling the multi-split air-conditioning system according to the comparison result further comprises that firstly, the opening degree of the electronic expansion valve A is adjusted to 108 steps, the opening degrees of the electronic expansion valve B, the electronic expansion valve C, the electronic expansion valve D and the electronic expansion valve E are 0 step, the parameter values detected by each indoor unit are transmitted to a computer readable storage medium of the outdoor unit through communication, and the processor carries out comparison operation.
In a preferred technical scheme of the present invention, after the step of comparing the detected parameters of the multi-split air conditioning system and controlling the multi-split air conditioning system according to the comparison result, the method further comprises adjusting the communication sequence of the outdoor unit when the indoor unit and the outdoor unit are connected incorrectly.
In the preferred technical scheme of the invention, after the communication sequence of the outdoor unit is adjusted, the display panel displays that 0 time lasts for 30 seconds, then the system is shut down, and the indoor units A, B, C, D and E are reset, so that the indoor units connected with the electronic expansion valve of the outdoor unit have corresponding communication and control.
The invention also provides a detection device of the multi-split air conditioning system, which comprises the following components: the detection module is used for detecting the front pressure value of the heat exchanger of the indoor unit and the pressure value of the refrigerant of the indoor unit;
the judging module is used for comparing the parameters of the detected multi-split air conditioning system;
and the execution module is used for controlling the multi-split air conditioning system according to the comparison result.
The invention also provides a multi-split air conditioning system, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium is used for storing a computer program, and the computer program is read by the processor and runs to realize the communication fault detection method of the multi-split air conditioning system.
The invention also discloses a computer readable storage medium which stores a computer program, and the computer program is read by a processor and runs to realize the communication fault detection method of the multi-split air-conditioning system.
By applying the technical scheme of the invention, when the indoor units and the outdoor units are in installation connection errors, including connection errors of the connecting copper pipes and the communication lines, the communication sequence of the outdoor units is adjusted by detecting the pressure values of the front parts of the heat exchangers of the indoor units and comparing the pressure values with the refrigerant pressure values, so that the control and the communication of the electronic expansion valves connected with the liquid pipes of the indoor units are kept consistent, and the detection method and the reset of the internal control of the system are realized during installation, thereby achieving the purposes of safety, error correction and fault tolerance, finally ensuring the reliable operation of the system, and avoiding secondary rectification and installation.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating a communication fault detection method of a multi-split air conditioning system according to the present invention;
FIG. 2 is a flowchart illustrating a method for detecting a communication fault in a multi-split air conditioning system according to an embodiment of the present invention;
FIG. 3 is a block diagram of a multi-split air conditioning system detection device according to the present invention;
fig. 4 is a block diagram of a multiple on-line system according to the present invention.
The reference numbers in the figures are: 100-a detection module, 200-a determination module, 300-an execution module, 400-a processor, 500-a computer-readable storage medium.
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.
Referring to fig. 1 to 2, a method for detecting a communication fault of a multi-split air conditioning system includes the following steps:
s100, after the multi-split air conditioning system is started for the first time, entering a detection mode, and detecting a plurality of indoor unit parameters, wherein the air conditioning parameters comprise a front pressure value of an indoor unit heat exchanger and an indoor unit refrigerant pressure value;
and S200, comparing the detected parameters of the multi-split air-conditioning system, and controlling the multi-split air-conditioning system according to the comparison result.
Optionally, in step S100, "after the multi-split air conditioning system is initially turned on, the multi-split air conditioning system enters a detection mode to detect parameters of the plurality of indoor units", and the method further includes step S110, various frequency limiting and protection functions of the system are temporarily shielded, the compressor always operates at 30Hz, and the display panel displays FF.
Optionally, the pressure value at the front part of the heat exchanger of the indoor unit comprises ｃA pressure value P- ｃA at the front part of the heat exchanger of the indoor unit ｃA, ｃA pressure value P-B at the front part of the heat exchanger of the indoor unit B, ｃA pressure value P-C at the front part of the heat exchanger of the indoor unit C, ｃA pressure value P-D at the front part of the heat exchanger of the indoor unit D, and ｃA pressure value P-E at the front part of the heat exchanger of the indoor unit E.
Optionally, the pressure values of the indoor unit refrigerant include an indoor unit refrigerant pressure value P-1, an indoor unit refrigerant pressure value P-2, an indoor unit refrigerant pressure value P-3, an indoor unit refrigerant pressure value P-4, and an indoor unit refrigerant pressure value P-5.
Preferably, the step S200 of "comparing according to the detected data of the multi-split air conditioning system and controlling the multi-split air conditioning system according to the comparison result" further includes a step S210 of firstly adjusting the opening degree of the electronic expansion valve a to 108 steps, the opening degrees of the electronic expansion valve B, the electronic expansion valve C, the electronic expansion valve D, and the electronic expansion valve E to 0 steps, communicating the parameter values detected by each indoor unit to the readable storage medium 500 of the outdoor unit computer, performing comparison operation by the processor 400, adjusting the opening degree of the electronic expansion valve B to 108 steps after the determination of the a unit, closing the opening degree of the electronic expansion valve a to 0 steps, at this time, the opening degrees of the electronic expansion valve a, the electronic expansion valve C, the electronic expansion valve D, and the electronic expansion valve E are all 0 steps, communicating the parameter values detected by each indoor unit to the readable storage medium 500 of the outdoor unit computer, performing comparison operation by the processor 400, and so on to the E machine determination.
Optionally, after step S200, "comparing according to the detected parameters of the multi-split air conditioning system, and controlling the multi-split air conditioning system according to the comparison result" further includes step S220, where when the indoor unit and the outdoor unit are connected incorrectly, the communication sequence of the outdoor unit is adjusted. The control and communication of the electronic expansion valve connected with the liquid pipe of the indoor unit are kept consistent.
When the machine A is determined, if T2-A is less than T1-A, the communication of the machine A is judged to be correct, namely the number of the machine A is changed into A;
if T2-B is less than T1-B, the communication error of the machine A is judged, and the number of the machine B is changed into A.
And in the MCU operation, the signals and data of the machine A are the detection values of the original indoor machine B. After the automatic reset function is finished, the signal of the electronic control board to the electronic expansion valve A is not sent to the electronic expansion valve A, but the output control signal is sent to the electronic expansion valve B;
if T2-C is less than T1-C, the communication error of the machine A is judged, and the number of the machine C is changed into A.
The signals and data of machine a are both detected values of the original machine C during the operation of the processor 400. After the automatic reset function is finished, the signal of the electric control board pair A is not sent to the electronic expansion valve A, but the output control signal is sent to the electronic expansion valve C;
if T2-D is less than T1-D, the communication error of the machine A is judged, and the number of the machine D in the room is changed into A.
The signal and data of machine a are both detected values of the original indoor machine D during the operation of the processor 400. After the automatic reset function is finished, the signal of the electronic control board to the electronic expansion valve A is not sent to the electronic expansion valve A, but the output control signal is sent to the electronic expansion valve D;
if T2-E is less than T1-E, the communication error of the machine A is judged, and the number of the machine E in the room is changed into A.
The signals and data of the machine a are both detected values of the original machine E during the operation of the processor 400. After the automatic reset function is finished, the signal of the electronic control board to the electronic expansion valve a is not sent to the electronic expansion valve a, but the output control signal is sent to the electronic expansion valve E.
When the B machine is determined, if T2-B is less than T1-B, the communication of the B machine is judged to be correct, namely the number of the B machine is changed into B;
if T2-A is less than T1-A, the communication error of the B machine is judged, and the number of the A machine is changed into B.
The signal and data of the machine B are both detected values of the original machine a during the calculation of the processor 400. After the automatic reset function is finished, the signal of the electronic control board to the electronic expansion valve B is not sent to the electronic expansion valve B, but the output control signal is sent to the electronic expansion valve A;
if T2-C is less than T1-C, the communication error of the B machine is judged, and the number of the C machine is changed into B.
The signals and data of the machine B are both detected values of the original machine C during the calculation by the processor 400. After the automatic reset function is finished, the signal of the electronic control board to the electronic expansion valve B is not sent to the electronic expansion valve B, but the output control signal is sent to the electronic expansion valve C;
if T2-D is less than T1-D, the communication error of the machine B is judged, and the number of the machine D is changed into B.
The signal and data of the machine B are both detected values of the original indoor machine D during the calculation by the processor 400. After the automatic reset function is finished, the signal of the electronic control board to the electronic expansion valve B is not sent to the electronic expansion valve B, but the output control signal is sent to the electronic expansion valve D;
if T2-E is less than T1-E, the communication error of the B machine is judged, and the number of the E machine is changed into B.
The signals and data of the machine B are both detected values of the original indoor machine E during the operation of the processor 400. After the automatic reset function is finished, the signal of the electronic control board to the electronic expansion valve B is not sent to the electronic expansion valve B, but the output control signal is sent to the electronic expansion valve E. The logic is determined for the E machine.
Preferably, after the communication sequence of the outdoor unit is adjusted, the display panel displays that 0 time lasts for 30 seconds, then the system is shut down, and the indoor unit a, the indoor unit B, the indoor unit C, the indoor unit D and the indoor unit E are reset, so that the indoor units connected with the electronic expansion valve of the outdoor unit have corresponding communication and control.
Referring to fig. 3, the present invention also provides a detection apparatus of a multi-split air conditioning system, including: the detection module 100, the detection module 100 is used for detecting the front pressure value of the heat exchanger of the indoor unit and the pressure value of the refrigerant of the indoor unit;
the judging module 200, the judging module 200 is used for comparing according to the detected parameters of the multi-split air conditioning system;
and the execution module 300, wherein the execution module 300 is used for controlling the multi-split air conditioning system according to the comparison result.
Compared with the prior art, the detection device of the multi-split air conditioning system and the detection method of the multi-split air conditioning system have similar advantages, and are not described herein again.
Referring to fig. 4, the present invention further provides a multi-split air conditioning system, including a computer-readable storage medium 500 storing a computer program and a processor 400, where the computer program is read and executed by the processor 400 to implement the above-mentioned method for detecting a communication failure of a multi-split air conditioning system.
Compared with the prior art, the multi-split system and the multi-split system detection method have similar advantages, and are not described herein again.
The invention also discloses a computer readable storage medium, the computer readable storage medium 500 stores a computer program, and the computer program is read by the processor 400 and runs to realize the communication fault detection method of the multi-split air conditioning system. The advantages of the computer-readable storage medium 500 and the method for detecting the communication failure of the multi-split air conditioning system are similar to those of the prior art, and are not described herein again.
From the above description, it can be seen that the embodiments of the present application have the following technical effects: the method mainly aims at the installation and connection errors of indoor units and outdoor units of the multi-split air-conditioning system, and can adjust the communication sequence of the outdoor units by detecting the pressure values of the front parts of heat exchangers of a plurality of indoor units and the pressure value of refrigerant when the connection errors of connecting copper pipes and communication lines of the multi-split air-conditioning system exist, so that the control and communication of electronic expansion valves connected with liquid pipes of the indoor units are kept consistent, the detection and reset functions of internal control of the system during installation are realized, the purposes of safety and error correction and fault tolerance are achieved, the reliable operation of the system is finally ensured, and secondary rectification and installation are avoided.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The method for detecting the communication fault of the multi-split air conditioning system is characterized by comprising the following steps of:
after the multi-split air conditioning system is started for the first time, entering a detection mode, and detecting a plurality of indoor unit parameters, wherein the air conditioning parameters comprise a front pressure value of an indoor unit heat exchanger and an indoor unit refrigerant pressure value;
and comparing the detected parameters of the multi-split air-conditioning system, and controlling the multi-split air-conditioning system according to the comparison result.
2. The method as claimed in claim 1, wherein in the step of entering a detection mode after the multi-split air conditioning system is initially turned on and detecting a plurality of indoor unit parameters, the method further comprises temporarily shielding various frequency limiting and protecting functions of the system, operating the compressor at 30Hz all the time, and displaying FF on a display panel.
3. The communication fault detection method for the multi-split air conditioning system according to claim 1, wherein the pressure values of the front portions of the indoor unit heat exchangers comprise ｃA pressure value P-A of the front portion of the indoor unit A heat exchanger, ｃA pressure value P-B of the front portion of the indoor unit B heat exchanger, ｃA pressure value P-C of the front portion of the indoor unit C heat exchanger, ｃA pressure value P-D of the front portion of the indoor unit D heat exchanger, and ｃA pressure value P-E of the front portion of the indoor unit E heat exchanger.
4. The communication fault detection method of a multi-split air conditioning system according to claim 1, wherein the indoor unit refrigerant pressure values include an indoor unit refrigerant pressure value P-1, an indoor unit refrigerant pressure value P-2, an indoor unit refrigerant pressure value P-3, an indoor unit refrigerant pressure value P-4, and an indoor unit refrigerant pressure value P-5.
5. The method as claimed in claim 1, wherein the step of comparing the data of the multi-split air conditioning system according to the detected data and controlling the multi-split air conditioning system according to the comparison result further comprises the steps of firstly adjusting the opening degree of the electronic expansion valve a to 108 steps, adjusting the opening degrees of the electronic expansion valve B, the electronic expansion valve C, the electronic expansion valve D and the electronic expansion valve E to 0 step, communicating the detected parameter values of the indoor units to a computer readable storage medium of an outdoor unit, and performing the comparison operation by a processor.
6. The method as claimed in claim 1, wherein after the steps of comparing the detected parameters of the multi-split air conditioning system and controlling the multi-split air conditioning system according to the comparison result, the method further comprises adjusting a communication sequence of the outdoor unit when the indoor unit and the outdoor unit are incorrectly connected.
7. The method as claimed in claim 6, further comprising, after adjusting the outdoor unit communication sequence, displaying on the display panel for 0 duration for 30 seconds, and then stopping the system, and resetting the indoor units a, B, C, D, and E, so that the indoor units connected to the outdoor unit electronic expansion valve have corresponding communication and control.
8. Detection apparatus of multi-split air conditioning system, its characterized in that includes: the detection module (100) is used for detecting the front pressure value of the heat exchanger of the indoor unit and the pressure value of the refrigerant of the indoor unit;
the judging module (200) is used for comparing the parameters of the detected multi-split air conditioning system;
and the execution module (300) is used for controlling the multi-split air conditioning system according to the comparison result.
9. Multi-split system, comprising a computer readable storage medium (500) having a computer program stored thereon and a processor (400), the computer program being readable and executable by the processor (400) for performing the method according to any of claims 1-7.
10. A computer-readable storage medium (500) in which a computer program is stored, which, when read and executed by a processor (400), implements the method according to any one of claims 1-7.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484733A (en) * | 2022-01-26 | 2022-05-13 | 宁波奥克斯电气股份有限公司 | Expansion valve control method and device and air conditioning system |
| CN114838461A (en) * | 2022-05-16 | 2022-08-02 | 美的集团武汉暖通设备有限公司 | Control method of multi-split air conditioner, multi-split air conditioner and storage medium |
| CN115950047A (en) * | 2023-01-03 | 2023-04-11 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioner control method and device, multi-split air conditioner and readable storage medium |
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| JPH0771802A (en) * | 1993-08-31 | 1995-03-17 | Mitsubishi Electric Corp | Air conditioner |
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| CN114484733A (en) * | 2022-01-26 | 2022-05-13 | 宁波奥克斯电气股份有限公司 | Expansion valve control method and device and air conditioning system |
| CN114484733B (en) * | 2022-01-26 | 2023-07-21 | 宁波奥克斯电气股份有限公司 | Expansion valve control method and device and air conditioning system |
| CN114838461A (en) * | 2022-05-16 | 2022-08-02 | 美的集团武汉暖通设备有限公司 | Control method of multi-split air conditioner, multi-split air conditioner and storage medium |
| CN114838461B (en) * | 2022-05-16 | 2024-02-20 | 美的集团武汉暖通设备有限公司 | Control method of multi-split air conditioner, multi-split air conditioner and storage medium |
| CN115950047A (en) * | 2023-01-03 | 2023-04-11 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioner control method and device, multi-split air conditioner and readable storage medium |
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