CN210425441U - Air conditioning system based on two-core communication bus - Google Patents
Air conditioning system based on two-core communication bus Download PDFInfo
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- CN210425441U CN210425441U CN201920728426.7U CN201920728426U CN210425441U CN 210425441 U CN210425441 U CN 210425441U CN 201920728426 U CN201920728426 U CN 201920728426U CN 210425441 U CN210425441 U CN 210425441U
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Abstract
The utility model relates to an air conditioning system based on two core communication buses, include: when the outdoor unit is started in a first temperature adjusting mode, the valve state of a first control valve arranged on a first refrigerant pipe is controlled, and a pipeline matching set instruction is sent to at least two indoor units through the two-core communication bus; and if a first matching success message sent by any indoor unit is received within a preset time period, determining that the indoor unit is matched with the first refrigerant pipe. The utility model discloses can match the address of indoor set and the refrigerant pipe that corresponds to guarantee the normal operating of air conditioner.
Description
Technical Field
The utility model relates to an electrical apparatus technical field especially relates to an air conditioning system based on two core communication buses.
Background
At present, in order to save cost, a household air conditioner has the condition that one outdoor unit is connected with a plurality of indoor units, the outdoor unit is connected with the plurality of indoor units through a plurality of different refrigerant pipes, the outdoor unit is usually connected with the plurality of indoor units on the same two-core communication bus at the same time, each indoor unit has a unique pipeline address in order to distinguish the different indoor units, and then the outdoor unit controls the plurality of indoor units through the two-core communication bus;
however, in practical applications it may happen that: although the refrigerant pipe a is actually connected with the indoor unit a and the refrigerant pipe B is connected with the indoor unit B, the pipeline address of the indoor unit a is wrongly set as the pipeline address of the indoor unit B by the outdoor unit, that is, the outdoor unit mistakenly considers that the refrigerant pipe a is connected with the indoor unit B, so that when the outdoor unit needs to control the indoor unit a connected with the refrigerant pipe a to be started, the indoor unit B actually connected with the refrigerant pipe B is started, and therefore the indoor unit a is not started under the control of the outdoor unit, the indoor unit B is started, and the air conditioning equipment on the whole two-core communication bus is possibly influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, (one) the utility model aims at providing an air conditioning system based on two core communication buses to alleviate the unable one-to-one of refrigerant union coupling of the pipeline address of equipment and corresponding equipment among the current air conditioning system, thereby directly lead to air conditioning system because refrigerant pipe erection joint mistake appears the unable technical problem of operation of air conditioner.
(II) technical scheme
In a first aspect, the present application provides an air conditioning system based on a two-core communication bus, comprising: the outdoor unit and the at least two indoor units are connected to the same two-core communication bus, the outdoor unit and each indoor unit are respectively connected through different refrigerant pipes, and each refrigerant pipe is respectively provided with a control valve for controlling the circulation of a refrigerant;
when the outdoor unit is started in a first temperature adjusting mode, the valve state of a first control valve arranged on a first refrigerant pipe is controlled, and a pipeline matching set instruction is sent to at least two indoor units through the two-core communication bus; if a matching success message sent by any indoor unit is received within a preset time period, the first refrigerant pipe is determined to be matched with the indoor unit, and the second refrigerant pipe is started to be matched until all the refrigerant pipes are matched;
the indoor unit responds to the pipeline matching setting instruction, collects the temperature value inside the indoor unit, and sends a matching success message to the outdoor unit if the variation of the temperature value in a preset time period exceeds a preset temperature threshold.
Optionally, the outdoor unit includes: a compressor, a first heat exchanger and a first main controller;
the first output end of the first main controller is electrically connected with the compressor and the input end of the first heat exchanger, and the first main controller controls the working states of the compressor and the first heat exchanger according to the state of the valve of the first control valve so as to complete the refrigerant circulation between the outdoor unit and the indoor unit;
the compressor is communicated with the first heat exchanger through a refrigerant pipe, a four-way valve used for switching temperature regulation modes is arranged on the refrigerant pipe between the compressor and the first heat exchanger, and the four-way valve is electrically connected with the first main controller.
Optionally, the first master includes: the system comprises a first CPU processing module and a first communication module;
the output end of the first CPU processing module is connected with the input end of the first communication module, the output end of the first communication module is connected to a two-core communication bus, the first communication module transmits a pipeline matching setting instruction received from the first CPU processing module to the two-core communication bus, and then the pipeline matching setting instruction is transmitted to at least two indoor units through the two-core communication bus.
Optionally, the outdoor unit further includes a timing module, and an input end of the timing module is connected to the second output end of the first main controller, and is configured to perform timing according to a preset time period.
Optionally, the indoor unit includes a second heat exchanger and a second main controller;
the input end of the second heat exchanger is electrically connected to the output end of the second main controller, the second main controller responds to the pipeline matching setting instruction and controls the second heat exchanger to collect the temperature value inside the indoor unit, and if the variation of the temperature value in a preset time period exceeds a preset temperature threshold, the second main controller sends a matching success message to the outdoor unit.
Optionally, the second master includes: the second communication module and the second CPU processing module;
the input end of the second communication module is connected with the two-core communication bus so as to realize the communication connection between the indoor unit and the outdoor unit;
the output end of the second communication module is connected with the input end of the second CPU processing module, the second communication module sends the received pipeline matching setting instruction to the second CPU processing module, and when the variation of the temperature value inside the indoor unit in a preset time period of the second CPU processing module exceeds a preset temperature threshold value, the second CPU processing module sends a matching success message to the outdoor unit and locks the address of the indoor unit.
Optionally, a temperature sensor is arranged in the second heat exchanger, and the temperature sensor is used for acquiring a temperature value inside the indoor unit.
Optionally, the indoor unit further includes a storage module, an input end of the storage module is connected to a second output end of the second CPU processing module, and the second CPU processing module writes the locked address information into the storage module.
Optionally, the two-core communication bus is specifically a CAN bus or an RS485 bus.
Optionally, the temperature inside the indoor unit is specifically a pipeline temperature of the indoor unit or an ambient temperature of the indoor unit.
(III) the beneficial effects are as follows:
the embodiment of the utility model provides an above-mentioned technical scheme compares with prior art has following advantage:
the utility model controls the valve state of the first control valve arranged on the first refrigerant pipe when the outdoor unit is opened in the first temperature adjusting mode, and sends a pipeline matching setting instruction to at least two indoor units through the two-core communication bus; the indoor unit responds to the pipeline matching setting instruction, collects a temperature value inside the indoor unit, and sends a matching success message to the outdoor unit if the variation of the temperature value in a preset time period exceeds a preset temperature threshold; if the successful message of matching that indoor set sent is received to the outer machine in the preset time quantum, the off-premises station is confirmed first refrigerant pipe is accomplished the matching with this indoor set, begins to match for the second refrigerant pipe, matches the completion until whole refrigerant pipes, the utility model discloses can match the address of indoor set and the refrigerant pipe that corresponds to guarantee the normal operating of air conditioner.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a block diagram of a basic structure of an air conditioning system based on a two-core communication bus according to the present invention;
fig. 2 is a schematic structural diagram of an air conditioning system based on a two-core communication bus according to the present invention;
fig. 3 is a schematic structural diagram of an outdoor unit of an air conditioning system according to an embodiment of the present invention;
fig. 4 is a schematic mechanism diagram of a refrigeration process in an air conditioning system based on a two-core communication bus according to an embodiment of the present invention;
fig. 5 is a schematic mechanism diagram of a heating operation process in an air conditioning system based on a two-core communication bus according to an embodiment of the present invention;
fig. 6 is a schematic flow chart of a self-adaptive control method for an air conditioning system according to the present invention.
In the figure:
1. an outdoor unit; 2. an indoor unit; 3. a two-core communication bus; 4. a control valve; 5. a compressor; 6. a first heat exchanger; 7. a first master controller; 8. a second heat exchanger; 9. a second master controller; 10. a four-way valve; 11. a capillary tube; 12. a refrigerant pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The invention will be described in further detail with reference to the accompanying drawings and specific embodiments:
example one
The air conditioning system generally refers to a civil air conditioner, when a user purchases the air conditioning system, the outdoor unit 1 is installed outdoors, and the indoor units 2 are installed in corresponding rooms, because the household freely-matched air conditioning system is adopted in the application, the freely-matched air conditioning system refers to that in the application, one outdoor unit 1 is provided with a plurality of indoor units 2, the user can install the indoor units 2 according to the number of rooms with required temperature adjustment, when the rooms with required temperature adjustment are increased, a new air conditioning system does not need to be purchased, and the rest indoor units 2 in the application can be installed, so that the expenditure cost is saved;
according to the method, the mode of adaptively identifying the refrigerant pipe 12 through the pipeline address of the air conditioning equipment breaks through the address setting mode in the prior art, the sub-equipment of the air conditioning system is accurately matched with the refrigerant pipe 12 connected with the sub-equipment, the situation that the air conditioner cannot normally work is avoided due to the installation and connection errors of the refrigerant pipe 12, specifically, the refrigerant pipe 12 is already connected when the air conditioning system is installed, and the indoor unit 2 corresponding to the indoor unit can be identified only through the address setting mode, so that the indoor unit can be judged to be successfully matched with the corresponding refrigerant pipe 12;
wherein the adaptive identification means: for example: when a freely-matched air conditioning system purchased by a user comprises one outdoor unit 1 and five indoor units 2, but the user needs to adjust the temperature of 3 existing rooms, the user only needs to install the indoor units 2 in the corresponding rooms, and then the power is switched on, so that the matching can be automatically performed.
As shown in fig. 1 and 2, the present application provides an air conditioning system based on a two-core communication bus 3, including: the outdoor unit 1 and the at least two indoor units 2 are connected to the same two-core communication bus, so that unified control over the indoor units 2 through one indoor unit 2 is achieved, specifically, the two-core communication bus 3 CAN adopt a CAN bus or an RS485 bus and the like, the outdoor unit 1 and each indoor unit 2 are respectively connected through different refrigerant pipes 12, each refrigerant pipe 12 is respectively provided with a control valve 4 for controlling refrigerant circulation, the control valve 4 is used for enabling the refrigerant to flow to the corresponding indoor unit 2 from the indoor unit 2 only by opening or closing the control valve 4 when temperature adjustment is needed, and in the application, the outdoor unit 1 achieves refrigeration or heating adjustment over the indoor unit 2 connected with the outdoor unit 1 by opening the corresponding control valve 4 on the corresponding refrigerant pipe 12.
In a specific control process, the matching of the refrigerant pipe 12 and the indoor unit 2 is performed in sequence:
first, the first refrigerant pipe 12 is matched:
when the outdoor unit 1 starts the first temperature regulation mode, the valve state of a first control valve 4 arranged on a first refrigerant pipe 12 is controlled, specifically, the control valve 4 is opened to start temperature regulation when refrigerant flows into the indoor units 2 from the outdoor unit 1, the corresponding temperature regulation is also closed when the control valve 4 is closed, and a pipeline matching setting instruction is sent to at least two indoor units 2 through a two-core communication bus, wherein the pipeline matching setting instruction comprises first pipeline address information, if a matching success message sent by any indoor unit 2 is received within a preset time period, the first refrigerant pipe 12 is determined to be matched with the indoor unit 2, and the matching of the first refrigerant pipe 12 and the second refrigerant pipe 12 is started until all the refrigerant pipes 12 are matched;
the indoor unit 2 responds to the pipeline matching setting instruction, stores the first pipeline address information in the storage space, collects the temperature value inside the indoor unit 2, locks the indoor unit 2 as a first indoor unit if the variation of the temperature value within a preset time period exceeds a preset temperature threshold, considers that the indoor unit 2 is successfully matched with the first refrigerant pipe 12, and sends a matching success message to the outdoor unit 1.
As shown in fig. 3, specifically, the outdoor unit 1 includes: a compressor 5, a first heat exchanger 6 and a first main controller 7;
the first output end of the first main controller 7 is electrically connected with the input ends of the compressor 5 and the first heat exchanger 6, and the first main controller 7 controls the working states of the compressor 5 and the first heat exchanger 6 according to the valve state of the first control valve 4 so as to complete the refrigerant circulation between the outdoor unit 1 and the indoor unit 2;
the compressor 5 is communicated with the first heat exchanger 6 through a refrigerant pipe 12, a four-way valve 10 for switching a temperature adjusting mode is arranged on the refrigerant pipe 12 between the compressor 5 and the first heat exchanger 6, the four-way valve 10 is electrically connected with the first main controller 7, and the reversing of the four-way valve 10 is controlled through the first controller, so that the switching of a refrigerating or heating mode is realized.
The first master 7 includes: the system comprises a first CPU processing module and a first communication module;
the output end of the first CPU processing module is connected with the input end of the first communication module, the output end of the first communication module is connected to the two-core communication bus, the first communication module transmits a pipeline matching setting instruction received from the first CPU processing module to the two-core communication bus, and then transmits the pipeline matching setting instruction to at least two indoor units 2 through the two-core communication bus 3.
The outdoor unit 1 further comprises a timing module, wherein an input end of the timing module is connected with a second output end of the first main controller 7 and is used for timing according to a preset time period.
The indoor unit 2 comprises a second heat exchanger 8 and a second main controller 9;
the input end of the second heat exchanger 8 is electrically connected to the output end of the second main controller 9, the second main controller 9 responds to the pipeline matching setting instruction, controls the second heat exchanger 8 to collect the temperature value inside the indoor unit 2, and if the variation of the temperature value in the preset time period exceeds the preset temperature threshold, the second main controller 9 sends a matching success message to the outdoor unit 1.
The second master 9 includes: the second communication module and the second CPU processing module;
the input end of the second communication module is connected with the two-core communication bus 3 so as to realize the communication connection between the indoor unit 2 and the outdoor unit 1;
the output end of the second communication module is connected with the input end of the second CPU processing module, the second communication module sends the received pipeline matching setting instruction to the second CPU processing module, and when the variation of the temperature value inside the indoor unit 2 in the preset time period of the second CPU processing module exceeds the preset temperature threshold, the second CPU processing module sends a matching success message to the outdoor unit 1 and locks the address of the indoor unit 2.
Wherein the temperature regulation process is as follows:
in the process of transferring heat from one place to another place, the refrigerant is easy to evaporate in a low-pressure state, absorb ambient heat, and easily condense in a high-pressure state, and emit heat to the surroundings, so that cooling or heating is realized, wherein difluorochloromethane (R22) is commonly used as the refrigerant.
The refrigeration process is shown in fig. 4, and the specific process is as follows:
in the refrigeration process, a first heat exchanger 6 in the outdoor unit 1 is a condenser, and a second heat exchanger 8 in the indoor unit 2 is an evaporator;
the first main controller 7 starts the compressor 5, the compressor 5 discharges high-pressure and high-temperature gaseous refrigerant, then the high-pressure and high-temperature gaseous refrigerant enters the outdoor coil pipe through the pipelines 1 and 2 of the four-way valve 10 to be condensed, the heat is released to become high-pressure and normal-temperature liquid refrigerant, the high-pressure and normal-temperature liquid refrigerant passes through the capillary tube 11 to be decompressed and throttled, the high-pressure and high-temperature liquid refrigerant enters the indoor coil pipe through the refrigerant pipe 12 to be evaporated at low pressure and low temperature in the indoor coil pipe, the heat in the indoor unit 2 is absorbed, the refrigeration is realized, then the low-pressure and low-temperature gaseous refrigerant is changed to flow;
the heating process is shown in fig. 5, and the specific process is as follows:
the first main controller 7 controls the four-way valve 10 to change direction, the first heat exchanger 6 in the outdoor unit 1 is used as an evaporator, the second heat exchanger 8 in the indoor unit 2 is used as a condenser, the compressor 5 discharges high-pressure and high-temperature gaseous refrigerant, then the high-pressure and high-temperature gaseous refrigerant enters the indoor coil pipe through the pipelines 1 and 4 of the four-way valve 10 to be condensed and simultaneously emits heat to the surroundings to become high-pressure and normal-temperature liquid refrigerant, the high-pressure and normal-temperature liquid refrigerant is subjected to pressure reduction and throttling through the capillary tube 11 and enters the outdoor coil pipe through the refrigerant pipe 12 to be evaporated at low pressure and low temperature in the outdoor coil pipe and simultaneously absorb heat of the environment of the outdoor unit 1 to become low-pressure and low-.
Specifically, a temperature sensor is arranged in the second heat exchanger 8 and used for collecting the temperature value inside the indoor unit 2, wherein the temperature inside the indoor unit 2 can refer to the temperature of the pipeline or the ambient temperature of the indoor unit 2, but the time for collecting the pipeline temperature of the indoor unit 2 is shorter than the time for collecting the ambient temperature of the indoor unit 2, and the accuracy of the matching degree is higher than the accuracy of the ambient temperature of the indoor unit 2, so that the method for collecting the pipeline temperature of the indoor unit 2 is adopted in the present application, but the scheme for collecting the ambient temperature of the indoor unit 2 can also be realized, and therefore, the scheme is not limited too much.
The indoor unit 2 further comprises a storage module, an input end of the storage module is connected with a second output end of the second CPU processing module, the second CPU processing module writes the locked address information into the storage module,
the storage module can be various nonvolatile memories (capable of keeping the stored data information under the condition of power failure). The memory module may include high speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory module may further include memory located remotely from the processor, which may be connected to the mobile terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
It can be seen from the above technical solutions that, the present embodiment provides an air conditioning system based on a two-core communication bus 3, specifically, when an outdoor unit 1 starts a first temperature adjustment mode, the outdoor unit controls a valve state of a first control valve 4 disposed on a first refrigerant pipe 12, and sends a pipeline matching setting instruction to at least two indoor units 2 through the two-core communication bus; if a first matching success message sent by any indoor unit 2 is received within a preset time period, determining that the indoor unit 2 is matched with the first refrigerant pipe 12; the utility model is used for realize among the air conditioning system the pipeline address of equipment and the refrigerant pipe 12 one-to-one of corresponding equipment and be connected to guarantee the normal operating of air conditioner.
Example two
As shown in fig. 6, the present application provides an adaptive control method for an air conditioning system, which is applied to the air conditioning system of the first embodiment, and the method may include the following steps:
step S1, the outdoor unit 1 opens the first control valve 4 in the first temperature adjusting mode, and sends a pipeline matching setting instruction to the indoor unit 2 through the two-core communication bus, and the timing is t 1;
firstly, after the whole air conditioning system is powered on, the indoor unit 2 and the outdoor unit 1 establish communication connection through the two-core communication bus 3, the outdoor unit 1 sends a pipeline matching set instruction to the indoor unit 2 through the two-core communication bus, the outdoor unit 1 starts a first temperature adjusting mode, wherein the temperature adjusting mode can be heating or refrigerating, only if the temperature adjusting mode is different from a second temperature adjusting mode, then the first control valve 4 is started, the first control valve 4 is broadcasted to the indoor unit 2 through the two-core communication bus 3, the first temperature adjusting mode is carried out by only starting the first control valve 4 at present, and a timer t1 is started, wherein t1 is more than 0s and more than 60s, and the reference can be selected for 30 s;
step S11, the indoor unit 2 responds to the pipeline matching setting instruction and collects the temperature value inside the indoor unit 2;
after the indoor units 2 receive the address and pipeline matching setting command, all the indoor units 2 are completely processed according to shutdown, all the loads stop acting, and the process of matching the address and the pipeline starts to enter, and after each indoor unit 2 receives the broadcast information, each indoor unit 2 acquires the temperature value inside the indoor unit in real time through a temperature sensor arranged in the indoor unit 2;
step S12, whether the variation of the temperature value in the preset time period exceeds the preset temperature threshold value or not;
when the temperature inside the indoor unit 2 is detected to rise or fall by X degrees, wherein X is more than 0 ℃ and less than 15 ℃, the reference temperature can be 5 ℃, namely: if the variation of the temperature value within the preset time period exceeds the preset temperature threshold, the indoor unit 2 is considered to be successfully matched with the first refrigerant pipe 12, and a matching success message is sent to the outdoor unit 1.
Step S13, whether the outdoor unit 1 receives a matching success message;
if the outdoor unit 1 receives the first matching success message sent by any indoor unit 2 or does not receive the first matching success message sent by any indoor unit 2 within a preset time period, the indoor unit 2 is determined to be matched with the first refrigerant pipe 12, and the second refrigerant pipe 12 is continued to match the indoor units 2;
or in order to check the accuracy of the previous matching process, matching is performed again, and the steps are as follows:
step S2, keeping the state of the first control valve 4 unchanged, switching the second temperature adjusting mode by the outdoor unit 1, and sending a pipeline matching connection command to the indoor unit 2 through the two-core communication bus;
keeping the state of the first control valve 4 unchanged, starting a second temperature regulation mode by the outdoor unit 1, wherein the temperature regulation mode can be heating or cooling, and only the first temperature regulation mode is different, and only the mode of realizing temperature change is different, the scheme is used, and only a pipeline matching connection starting command is broadcasted to the indoor unit 2 through the two-core communication bus 3, and a timer t2 is started, wherein 0s is more than t1 and less than 60s, and can be selected for 30s as a reference;
step S21, the indoor unit 2 responds to the pipeline matching connection command and collects the temperature value inside the indoor unit 2;
after each indoor unit 2 receives the pipeline matching connection command, each indoor unit 2 acquires the temperature value inside the indoor unit in real time through a temperature sensor arranged inside the indoor unit;
step S22, whether the variation of the temperature value in the preset time period exceeds the preset temperature threshold value or not;
when the temperature inside the indoor unit 2 is detected to rise or fall by Y ℃, wherein Y is more than 0 ℃ and less than 15 ℃, the reference temperature can be 5 ℃, namely: if the variation of the temperature value within the preset time period exceeds the preset temperature threshold, the indoor unit 2 is locked as a first indoor unit, and meanwhile, the indoor unit 2 and the first refrigerant pipe 12 are considered to be successfully matched, so that the problem in the previous matching process is verified, and then a matching success message is sent to the outdoor unit 1.
Step S23, whether the outdoor unit 1 receives a matching success message;
and if the outdoor unit 1 receives a second matching success message sent by any indoor unit 2 within a preset time period, executing a step of determining that the indoor unit 2 and the first refrigerant pipe 12 complete matching.
Step S3, the indoor unit 2 starts an automatic error correction phase;
in this step, in order to avoid setting different indoor units 2 to the same pipeline address, and thus improve the matching accuracy, the specific process is as follows:
sending a pipeline address acquisition request to other indoor units 2 in the air conditioning system;
if a second pipeline address returned by any indoor unit 2 in response to the pipeline address acquisition request is received;
step S31, whether the first pipe addresses in the indoor units 2 are the same;
specifically, whether the two received pipeline addresses are the same or not is judged;
step S32, the indoor unit 2 sends a pipe invalidation notification to the outdoor unit 1;
and if the first pipeline address is the same as the second pipeline address, determining that the first pipeline address is invalid, deleting the first pipeline address in the preset storage space, sending a pipeline invalid notification to the outdoor unit 1, and if the first pipeline address is not the same as the second pipeline address, finishing the rest matching process.
Step S33, the outdoor unit 1 determines whether it has received a pipe invalidation notification;
if the outdoor unit 1 receives a pipeline invalidation notification sent by any indoor unit 2, the outdoor unit 1 memorizes the information of the first control valve 4 corresponding to the current pipeline invalidation notification;
step S34, the outdoor unit 1 memorizes the information of the first control valve 4 corresponding to the current invalid notification;
step S35, after all the matching is completed, matching the first refrigerant pipe 12 corresponding to the first control valve 4 again;
after the matching of the plurality of refrigerant pipes 12 with the indoor unit 2 is completed, the indoor unit 2 is matched again for the first refrigerant pipe 12 corresponding to the first control valve 4, but in the current scheme, the pipeline is unique, so that the problem of repeated pipeline addresses does not exist theoretically, but in order to avoid special situations, the automatic error correction stage is set.
In step S4, the outdoor unit 1 writes the locked address information in the storage module.
Determining a first pipeline address of the first refrigerant pipe 12 based on the pipeline matching setting instruction;
the first locked pipeline address is written into the preset storage space of the corresponding indoor unit 2, after the indoor unit 2 is electrified again, the indoor unit 2 can directly read the address information stored before from the storage module, the pipeline address matching is not needed to be carried out again, the operation is carried out only by matching once when the air conditioning system is just installed, and the operation is simple and convenient.
A storage medium is provided in which a computer program is stored, wherein the computer program is arranged to perform the above-mentioned method when executed.
The embodiment provides a self-adaptive control method of an air conditioning system, which specifically comprises the steps that when an outdoor unit 1 is started in a first temperature regulation mode, the valve state of a first control valve 4 arranged on a first refrigerant pipe 12 is controlled, and a pipeline matching setting instruction is sent to at least two indoor units 2 through a two-core communication bus; if a first matching success message sent by any indoor unit 2 is received within a preset time period, determining that the indoor unit 2 is matched with the first refrigerant pipe 12; the utility model is used for realize among the air conditioning system the pipeline address of equipment and the refrigerant pipe 12 one-to-one of corresponding equipment and be connected to guarantee the normal operating of air conditioner.
The above-mentioned embodiment is the most preferred embodiment, and more accurate matching can be realized through two different temperature regulation modes, but this application is not limited to only turning on the cooling mode or the heating mode first, and this application is not limited to the above-mentioned scheme, and a single mode can be adopted, for example: the technical problem of the application can be solved only by switching on the refrigeration mode or the heating mode and only by temperature change.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one of skill in the art, embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of 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, embodiments of 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.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (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 terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, 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 terminal 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 terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present application and are presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An air conditioning system based on a two-core communication bus, comprising: the outdoor unit and the at least two indoor units are connected to the same two-core communication bus, the outdoor unit and each indoor unit are respectively connected through different refrigerant pipes, and each refrigerant pipe is respectively provided with a control valve for controlling the circulation of a refrigerant;
when the outdoor unit is started in a first temperature adjusting mode, the valve state of a first control valve arranged on a first refrigerant pipe is controlled, and a pipeline matching set instruction is sent to at least two indoor units through the two-core communication bus; if a matching success message sent by any indoor unit is received within a preset time period, the first refrigerant pipe is determined to be matched with the indoor unit, and the second refrigerant pipe is started to be matched until all the refrigerant pipes are matched;
the indoor unit responds to the pipeline matching setting instruction, collects the temperature value inside the indoor unit, and sends a matching success message to the outdoor unit if the variation of the temperature value in a preset time period exceeds a preset temperature threshold.
2. The two-wire communication bus-based air conditioning system of claim 1, wherein the outdoor unit comprises: a compressor, a first heat exchanger and a first main controller;
the first output end of the first main controller is electrically connected with the compressor and the input end of the first heat exchanger, and the first main controller controls the working states of the compressor and the first heat exchanger according to the state of the valve of the first control valve so as to complete the refrigerant circulation between the outdoor unit and the indoor unit;
the compressor is communicated with the first heat exchanger through a refrigerant pipe, a four-way valve used for switching temperature regulation modes is arranged on the refrigerant pipe between the compressor and the first heat exchanger, and the four-way valve is electrically connected with the first main controller.
3. The two-core communication bus based air conditioning system as claimed in claim 2, wherein the first master controller comprises: the system comprises a first CPU processing module and a first communication module;
the output end of the first CPU processing module is connected with the input end of the first communication module, the output end of the first communication module is connected to a two-core communication bus, the first communication module transmits a pipeline matching setting instruction received from the first CPU processing module to the two-core communication bus, and then the pipeline matching setting instruction is transmitted to at least two indoor units through the two-core communication bus.
4. The air conditioning system of claim 2, wherein the outdoor unit further comprises a timing module, and an input terminal of the timing module is connected to the second output terminal of the first master controller for timing according to a preset time period.
5. The two-core communication bus based air conditioning system as claimed in claim 3, wherein the indoor unit comprises a second heat exchanger and a second master controller;
the input end of the second heat exchanger is electrically connected to the output end of the second main controller, the second main controller responds to the pipeline matching setting instruction and controls the second heat exchanger to collect the temperature value inside the indoor unit, and if the variation of the temperature value in a preset time period exceeds a preset temperature threshold, the second main controller sends a matching success message to the outdoor unit.
6. The two-core communication bus based air conditioning system as claimed in claim 5, wherein the second master controller comprises: the second communication module and the second CPU processing module;
the input end of the second communication module is connected with the two-core communication bus so as to realize the communication connection between the indoor unit and the outdoor unit;
the output end of the second communication module is connected with the input end of the second CPU processing module, the second communication module sends the received pipeline matching setting instruction to the second CPU processing module, and when the variation of the temperature value inside the indoor unit in a preset time period of the second CPU processing module exceeds a preset temperature threshold value, the second CPU processing module sends a matching success message to the outdoor unit and locks the address of the indoor unit.
7. The air conditioning system based on the two-core communication bus of claim 5, wherein a temperature sensor is arranged in the second heat exchanger, and the temperature sensor is used for collecting the temperature value inside the indoor unit.
8. The air conditioning system based on the two-core communication bus of claim 6, wherein the indoor unit further comprises a storage module, an input end of the storage module is connected with a second output end of the second CPU processing module, and the second CPU processing module writes the locked address information into the storage module.
9. Air conditioning system according to claim 1, characterized in that the two-core communication bus is in particular a CAN bus or an RS485 bus.
10. The air conditioning system based on the two-core communication bus according to any one of claims 1 to 9, wherein the temperature inside the indoor unit is specifically a pipe temperature of the indoor unit or an ambient temperature of the indoor unit.
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| CN110260477A (en) * | 2019-05-20 | 2019-09-20 | 珠海格力电器股份有限公司 | A kind of air-conditioning system, control method and storage medium based on two core communication buses |
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