Control method and device for floor heating system, floor heating system and computer readable storage medium

Abstract

The invention relates to the technical field of heating and ventilation, and discloses a control method for a floor heating system, and the floor heating system comprises a compressor, a floor heating coil, a throttling device and an outdoor heat exchanger which are sequentially connected through a refrigerant pipeline; the control method comprises the steps that under the condition that heating of the floor heating system is started, the current indoor temperature difference and the floor heating heat storage constant are obtained; according to the current indoor temperature difference and the floor heating heat storage constant, the target operation frequency of a compressor is determined; and controlling the compressor to start operation according to the target operation frequency. When heating of the floor heating system is started, the optimal target operation frequency of the compressor can be determined according to the current indoor temperature difference and the floor heating heat storage constant, and the compressor is controlled to reasonably operate according to the target operation frequency. Therefore, the running logic of the floor heating system can be optimized, so that the floor heating system runs more reasonably, and the heat comfort experience of a user can be improved. The invention further discloses a control device for the floor heating system, the floor heating system and a computer readable storage medium.

Description

Technical Field

[0001] The present application relates to the field of HVAC technology, for example, to a control method and device for a floor heating system, a floor heating system, and a computer-readable storage medium. Background Art

[0002] At present, with the improvement of people's living standards, multi-split systems have been widely used. In daily life, air conditioning heating can meet the thermal comfort requirements of users. As people pay more and more attention to their own comfort experience, floor heating with relatively higher comfort is gradually favored by users. To this end, the relevant technology proposes a floor heating and air conditioning dual-generation system that integrates air conditioning and floor heating, in which the floor heating system is connected in parallel to the refrigerant pipeline of the air conditioning system.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] Related technologies can control the high-temperature refrigerant discharged from the compressor to flow into the floor heating coil in the heating mode, and then dissipate heat through floor radiation. However, there are differences in the heat exchange form between the floor heating system and the air-conditioning system, and the operating logic of the air-conditioning system cannot be well applied to the floor heating system. For example, due to the different laying conditions of the floor heating coils, it is easy to cause differences in the heat storage conditions in the user's home. And because the floor heating system takes a long time to heat, if the operating parameters of the floor heating system cannot be accurately controlled when it starts, it is easy to cause its overall heating time to be greatly prolonged, causing the user to be unable to feel the thermal comfort effect for a long time.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a control method and device for a floor heating system, a floor heating system, and a computer-readable storage medium, which can optimize the operating logic of the floor heating system to make the floor heating system operate more reasonably, thereby improving the user's thermal comfort experience.

[0008] In some embodiments, the floor heating system includes a compressor, a floor heating coil, a throttling device and an outdoor heat exchanger connected in sequence through a refrigerant pipeline; the control method includes: when the floor heating system is started to heat, obtaining the current indoor temperature difference and the floor heating heat storage constant; determining the target operating frequency of the compressor based on the current indoor temperature difference and the floor heating heat storage constant; and controlling the compressor to start operating according to the target operating frequency.

[0009] In some embodiments, the device includes: a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned control method for the floor heating system when running the program instructions.

[0010] In some embodiments, the floor heating system includes: a compressor, a floor heating coil, a throttling device and an outdoor heat exchanger connected in sequence through a refrigerant pipeline; the above-mentioned control device for the floor heating system is electrically connected to the compressor.

[0011] In some embodiments, the computer-readable storage medium stores program instructions, and when the program instructions are executed, the computer executes the above-mentioned control method for the floor heating system.

[0012] The control method, device, floor heating system, and computer-readable storage medium for a floor heating system provided in the embodiments of the present disclosure can achieve the following technical effects:

[0013] When the floor heating system starts heating, the disclosed embodiment can obtain the current temperature difference in the room to determine the actual heating demand in the room at this time. At the same time, the disclosed embodiment can obtain the floor heating heat storage constant to analyze the actual heat storage performance of the floor heating coils laid indoors. Then the disclosed embodiment can determine the optimal target operating frequency of the compressor based on this, and control the compressor to operate reasonably according to the target operating frequency under the heating condition of the floor heating system. Therefore, the disclosed embodiment can optimize the operating logic of the floor heating system to make the floor heating system operate more reasonably, which is conducive to improving the user's thermal comfort experience.

[0014] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0016] Figure 1 is a structural schematic diagram of a floor heating system provided by an embodiment of the present disclosure;

[0017] Figure 2is a schematic diagram of a control method for a floor heating system provided by an embodiment of the present disclosure;

[0018] Figure 3 is a schematic diagram of another control method for a floor heating system provided by an embodiment of the present disclosure;

[0019] Figure 4 is a schematic diagram of another control method for a floor heating system provided by an embodiment of the present disclosure;

[0020] Figure 5 is a schematic diagram of another control method for a floor heating system provided by an embodiment of the present disclosure;

[0021] Figure 6 It is a schematic diagram of a control device for a floor heating system provided in an embodiment of the present disclosure.

[0022] Reference numerals:

[0023] 10: compressor; 20: floor heating coil; 30: throttling device; 40: outdoor heat exchanger; 51: first temperature sensor; 52: second temperature sensor; 60: control device for floor heating system; 61: processor; 62: memory; 63: communication interface; 64: bus. DETAILED DESCRIPTION

[0024] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0025] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0026] Unless otherwise stated, the term "plurality" means two or more.

[0027] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0028] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0029] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0030] Combination Figure 1 As shown, the embodiment of the present disclosure provides a floor heating system, including: a compressor 10, a floor heating coil 20, a throttling device 30 and an outdoor heat exchanger 40. The compressor 10, the floor heating coil 20, the throttling device 30 and the outdoor heat exchanger 40 are sequentially connected through a refrigerant pipeline to form a refrigerant circulation loop.

[0031] When the floor heating system provided by the embodiment of the present disclosure is in a heating state, the high-temperature refrigerant discharged by the compressor 10 flows into the floor heating coil 20, and releases heat to the floor above the floor heating coil 20 through the condensation process, thereby achieving radiant heat dissipation indoors. The floor heating system can thereby ensure uniformity of indoor temperature, which is conducive to improving the thermal comfort experience of users.

[0032] Optionally, the floor heating system further includes a first temperature sensor 51. The first temperature sensor 51 is disposed on the floor above the outlet pipeline of the floor heating coil 20, and is used to detect the indoor floor temperature. In this way, the indoor floor temperature can be collected by the first temperature sensor 51, which is conducive to analyzing the heat storage performance of the floor heating coil laid indoors, so as to more reasonably control the operating frequency of the compressor.

[0033] Optionally, the floor heating system further includes a second temperature sensor 52. The second temperature sensor 52 is disposed at a housing outside the outdoor heat exchanger 40 and is used to detect the outdoor ambient temperature. In this way, the outdoor ambient temperature can be collected by the second temperature sensor 52, which is conducive to analyzing the influence of the current outdoor working conditions on the heating efficiency, so as to more reasonably control the operating frequency of the compressor.

[0034] Optionally, the floor heating system further includes a control device 60 for the floor heating system. The control device 60 for the floor heating system is electrically connected to the compressor 10. In this way, the embodiment of the present disclosure can execute a corresponding control method through the control device 60 to make the floor heating system operate more reasonably.

[0035] Based on the above floor heating system, combined with Figure 2 As shown, the embodiment of the present disclosure provides a control method for a floor heating system, comprising:

[0036] S101, when the floor heating system is started, the control device obtains the current indoor temperature difference and the floor heating heat storage constant.

[0037] S102, the control device determines the target operating frequency of the compressor according to the current indoor temperature difference and the floor heating heat storage constant.

[0038] S103, the control device controls the compressor to start operating according to the target operating frequency.

[0039] By adopting the control method for the floor heating system provided by the embodiment of the present disclosure, when the floor heating system starts heating, the embodiment of the present disclosure can obtain the current temperature difference in the room to determine the actual heating demand in the room at this time. At the same time, the embodiment of the present disclosure can obtain the floor heating heat storage constant to analyze the actual heat storage performance of the floor heating coils laid indoors. Then the embodiment of the present disclosure can determine the optimal target operating frequency of the compressor based on this, and control the compressor to operate reasonably according to the target operating frequency under the heating condition of the floor heating system. Therefore, the embodiment of the present disclosure can optimize the operating logic of the floor heating system to make the operation of the floor heating system more reasonable, which is conducive to improving the user's thermal comfort experience.

[0040] Optionally, the control device obtains the current temperature difference in the room, including: the control device obtains the current temperature in the room and determines the set target temperature; the control device calculates the difference between the set target temperature and the current temperature in the room to obtain the current temperature difference in the room. In this way, the embodiment of the present disclosure can obtain the current temperature difference in the room by obtaining the set target temperature and the current temperature in the room and calculating the difference between the two, which is conducive to timely monitoring the current heating demand in the room. Therefore, the operating frequency of the compressor can be reasonably set accordingly, so that the floor heating system can operate more reasonably, which is conducive to improving the thermal comfort experience of users.

[0041] Optionally, the control device obtains the floor heating heat storage constant, including: the control device obtains the historical temperature rise effective time of the floor temperature; the control device determines the corresponding floor heating heat storage constant from the first preset association relationship according to the historical temperature rise effective time of the floor temperature.

[0042] In this way, the disclosed embodiment can obtain the historical temperature rise effective time of the floor temperature of the floor heating system in the recent period, that is, the time when the radiant heat dissipation starts to take effect after the floor heating system is turned on. The historical temperature rise effective time can be the latest temperature rise effective time of the floor temperature after the floor heating system was turned on for the last time, or it can be the average temperature rise effective time of the floor temperature after the floor heating system was turned on in the past week. Then, the disclosed embodiment can combine the historical temperature rise effective time to match and obtain the corresponding floor heating heat storage constant in the first preset association relationship, which is conducive to reasonably setting the operating frequency of the compressor in combination with the actual heat storage performance of the floor heating coil, so that the floor heating system can operate more reasonably, which is conducive to improving the user's thermal comfort experience.

[0043] Among them, the floor heating heat storage constant is positively correlated with the historical temperature rise onset time. In this way, when the historical temperature rise onset time of the floor temperature is longer, it means that the radiation heat dissipation takes longer to take effect after the floor heating system is turned on. At this time, the actual heat storage performance of the floor heating coils laid indoors is relatively weak. Therefore, the implementation of the present disclosure can set a relatively larger floor heating heat storage constant to slightly increase the operating frequency of the compressor after the floor heating system is started, thereby ensuring the initial heating efficiency of the floor heating system, and then avoiding the long heating time of the floor heating system, which causes users to be unable to enjoy a comfortable experience in time.

[0044] Optionally, the first preset association relationship includes one or more corresponding relationships between the effective time of the temperature rise of the floor temperature and the heat storage constant of the floor heating. For example, Table 1 shows a corresponding relationship between the effective time of the temperature rise of the floor temperature t and the heat storage constant of the floor heating b, as shown in the following table:

[0045] Table 1

[0046]

[0047] Among them, 0<t1<t2<t3<t4<t max , b1<b2<b3<b4<b5.

[0048] Optionally, the control device obtains the floor heating heat storage constant, further comprising: when the floor heating system is started for the first time, the control device obtains floor heating installation parameters; the control device determines the floor heating heat storage constant according to the floor heating installation parameters. The floor heating installation parameters include the material of the heat storage layer and / or the thickness of the heat storage layer and / or the normal temperature of the heat storage layer.

[0049] Thus, when the floor heating coil is just installed, since the historical temperature rise time of the floor temperature has not yet been recorded, in order to better analyze the heat storage performance of the floor heating coil laid indoors, the disclosed embodiment can combine the floor heating installation parameters such as the material of the heat storage layer, the thickness of the heat storage layer, and the normal temperature of the heat storage layer to estimate the floor heating heat storage constant at the first start. Therefore, the disclosed embodiment can reasonably set the operating frequency of the compressor when the floor heating system is first operated, so that the floor heating system can operate more reasonably, which is conducive to improving the user's thermal comfort experience.

[0050] Optionally, combined Figure 3 As shown, the control device determines the target operating frequency of the compressor according to the current indoor temperature difference and the floor heating heat storage constant, including:

[0051] S201, the control device determines the target condensing temperature of the floor heating coil according to the current indoor temperature difference.

[0052] S202, the control device according to f = a * T L +b, obtain the target operating frequency of the compressor.

[0053] Where f is the target operating frequency of the compressor, a is the floor heating condensation coefficient, T L is the target condensing temperature of the floor heating coil, and b is the floor heating heat storage constant.

[0054] In this way, the disclosed embodiment can judge the current heating demand of the room in combination with the current temperature difference in the room, and then set the appropriate target condensing temperature of the floor heating coil as needed, so as to better ensure the thermal radiation efficiency of the floor heating system. On this basis, the disclosed embodiment introduces the floor heating heat storage constant, so as to optimize the operating state of the floor heating system in combination with the actual heat storage performance of the floor heating coil, and by calculating the target operating frequency of the compressor, the floor heating system can operate more reasonably, which is conducive to improving the thermal comfort experience of users.

[0055] Optionally, the control device determines the target condensing temperature of the floor heating coil according to the current indoor temperature difference, including: the control device calculates the target condensing temperature of the floor heating coil according to the PID algorithm according to the current indoor temperature difference. In this way, the embodiment of the present disclosure combines the PID (Proportional Integral Derivative) algorithm to dynamically set the target condensing temperature of the floor heating coil, so that the compressor can be more accurately controlled to operate reasonably, which is conducive to realizing the on-demand operation of the floor heating system.

[0056] Optionally, after the control device controls the compressor to start running at the target operating frequency, it also includes: the control device collects and records the effective duration of the current temperature rise of the floor temperature. In this way, after the floor heating system is started, the embodiment of the present disclosure can count the actual effective duration of the temperature rise of the floor temperature each time to determine whether there is a difference in the actual heat storage performance of the floor heating coil. This is conducive to the subsequent dynamic adjustment of the floor heating heat storage constant of the floor heating system, so that the floor heating system can operate more reasonably.

[0057] Specifically, the control device collects and records the effective duration of the current temperature rise of the floor temperature, including: the control device continuously detects the floor temperature; when the change value of the floor temperature is greater than or equal to the temperature rise threshold, the control device obtains and records the effective duration of the current temperature rise. In this way, the embodiment of the present disclosure can take into account the impact of normal fluctuations in indoor temperature on the floor temperature, thereby improving the accuracy of collecting the effective duration of the temperature rise.

[0058] Preferably, the floor temperature above the outlet pipe of the floor heating coil can be detected. In this way, the accuracy of the acquisition of the effective time of the temperature rise can be further improved, which is conducive to better judging the time when the radiation heat dissipation starts to take effect after the floor heating system is turned on.

[0059] Based on the above floor heating system, combined with Figure 4 As shown, the embodiment of the present disclosure provides another control method for a floor heating system, comprising:

[0060] S301, when the floor heating system is started, the control device obtains the current indoor temperature difference and the floor heating heat storage constant.

[0061] S302, the control device determines the target operating frequency of the compressor according to the current indoor temperature difference and the floor heating heat storage constant.

[0062] S303, the control device obtains an external ring temperature correction constant.

[0063] S304, the control device corrects the target operating frequency of the compressor according to the external ring temperature correction constant.

[0064] S305, the control device controls the compressor to start operating according to the corrected target operating frequency.

[0065] Using the control method for the floor heating system provided by the embodiment of the present disclosure, when the heating system starts heating, the embodiment of the present disclosure can obtain the current temperature difference in the room to determine the actual heating demand in the room at this time. At the same time, the embodiment of the present disclosure can obtain the floor heating heat storage constant to analyze the actual heat storage performance of the floor heating coils laid indoors. In addition, the embodiment of the present disclosure can also obtain the external ring temperature correction constant to fully consider the impact of the current outdoor working conditions on the heating efficiency of the floor heating system. Then, the embodiment of the present disclosure can reasonably set the optimal target operating frequency of the compressor based on the above factors, and control the compressor to operate reasonably according to the target operating frequency under the heating conditions of the floor heating system. As a result, the embodiment of the present disclosure can optimize the operating logic of the floor heating system to make the operation of the floor heating system more reasonable, which is conducive to improving the user's thermal comfort experience.

[0066] Optionally, the control device obtains an external ring temperature correction constant, including: the control device obtains the outdoor ambient temperature when the floor heating system starts heating; the control device determines the corresponding external ring temperature correction constant from a second preset association relationship according to the outdoor ambient temperature.

[0067] In this way, the disclosed embodiment can obtain the outdoor ambient temperature when the floor heating system starts heating, so as to analyze the influence of the current outdoor working condition on the heating efficiency of the floor heating system. Then, the disclosed embodiment can match the outdoor ambient temperature in the second preset association relationship to obtain the corresponding external temperature correction constant, so as to reasonably set the operating frequency of the compressor in combination with the influence of the outdoor load working condition on the heating efficiency of the floor heating system, so as to make the floor heating system operate more reasonably, which is conducive to improving the thermal comfort experience of users.

[0068] Among them, in the second preset correlation, the outer loop temperature correction constant is negatively correlated with the outdoor ambient temperature. In this way, when the outdoor ambient temperature is higher when the floor heating system is started, the temperature difference between the outdoor ambient temperature and the evaporation temperature of the outdoor heat exchanger is greater, indicating that the outdoor heat exchanger is more likely to absorb heat from the outside air. Therefore, the implementation of the present disclosure can set a relatively smaller outer loop temperature correction constant to slightly reduce the operating frequency of the compressor after the floor heating system is started, thereby ensuring the heating efficiency of the floor heating system while reducing unnecessary energy consumption of the floor heating system, so that the floor heating system always operates in the high-efficiency range.

[0069] Optionally, the second preset association relationship includes one or more corresponding relationships between outdoor ambient temperature and external temperature correction constant. For example, Table 2 shows an outdoor ambient temperature T w The corresponding relationship with the external ring temperature correction constant c is shown in the following table:

[0070] Table 2

[0071]

[0072] Among them, T min <T1<T2<T3<T4<T max , c1>c2>c3>c4>c5.

[0073] Optionally, the control device corrects the target operating frequency of the compressor according to the external ring temperature correction constant, including: the control device determines the corrected target operating frequency of the compressor according to f'=f+c'.

[0074] Wherein, f' is the corrected target operating frequency of the compressor, and c is the external ring temperature correction constant.

[0075] In this way, the embodiment of the present disclosure can introduce an external ring temperature correction constant, so that the operating state of the floor heating system can be optimized in combination with the impact of outdoor load conditions on the heating efficiency of the floor heating system, and by calculating the corrected target operating frequency of the compressor, the floor heating system can operate more efficiently, which is conducive to improving the energy-saving effect of the floor heating system.

[0076] Based on the above floor heating system, combined with Figure 5 As shown, the embodiment of the present disclosure provides another control method for a floor heating system, comprising:

[0077] S401, when the floor heating system is started, the control device obtains the current indoor temperature difference and the floor heating heat storage constant.

[0078] S402, the control device determines the target operating frequency of the compressor according to the current indoor temperature difference and the floor heating heat storage constant.

[0079] S403, the control device controls the compressor to start operating according to the target operating frequency.

[0080] S404, when the floor heating system operates stably, the control device obtains the current supercooling degree of the floor heating system.

[0081] S405, the control device adjusts the opening of the throttling device according to the current supercooling degree of the floor heating system.

[0082] By adopting the control method for the floor heating system provided by the embodiment of the present disclosure, when the heating of the floor heating system is started, the embodiment of the present disclosure can obtain the current temperature difference in the room to determine the actual heating demand in the room at this time. At the same time, the embodiment of the present disclosure can obtain the floor heating heat storage constant to analyze the actual heat storage performance of the floor heating coils laid indoors. Then the embodiment of the present disclosure can determine the optimal target operating frequency of the compressor based on this, and control the compressor to operate reasonably according to the target operating frequency under the heating condition of the floor heating system. In addition, after the operation of the floor heating system is stable, the embodiment of the present disclosure can obtain the current supercooling of the floor heating system, and reasonably adjust the opening of the throttling device based on this, so as to improve the heating energy efficiency of the floor heating system, which is conducive to better exerting the heating capacity of the floor heating system. Therefore, the embodiment of the present disclosure can optimize the operating logic of the floor heating system to make the operation of the floor heating system more reasonable, which is conducive to improving the thermal comfort experience of users.

[0083] Optionally, the control device obtains the current supercooling degree of the floor heating system, including: the control device determines the target condensing temperature of the floor heating coil and detects the current outlet temperature of the floor heating coil; the control device calculates the difference between the target condensing temperature and the current outlet temperature to obtain the current supercooling degree of the floor heating system. In this way, the embodiment of the present disclosure can obtain the current supercooling degree of the floor heating system by obtaining the target condensing temperature and the current outlet temperature of the floor heating coil and calculating the difference between the two, thereby improving the heating energy efficiency of the floor heating system and facilitating better exertion of the heating capacity of the floor heating system.

[0084] Optionally, the control device adjusts the opening of the throttling device according to the current supercooling degree of the floor heating system, including: when the current supercooling degree of the floor heating system is greater than the upper limit value of the preset supercooling range, the control device increases the opening of the throttling device; or, when the current supercooling degree of the floor heating system is less than the lower limit value of the preset supercooling range, the control device reduces the opening of the throttling device.

[0085] In this way, when the current supercooling degree of the floor heating system is greater than the upper limit value of the preset supercooling degree range (such as 5°C), it indicates that the system supercooling degree is too large. At this time, the liquid refrigerant is overcooled in the floor heating coil, which increases the workload of the floor heating coil and generates additional energy consumption, resulting in a decrease in the heating efficiency of the floor heating system. Therefore, the embodiment of the present disclosure can appropriately increase the opening of the throttling device to increase the refrigerant flow at the outlet of the floor heating coil, thereby slightly reducing the condensing pressure of the floor heating coil, so that the supercooling degree of the floor heating system can be quickly reduced to within the preset supercooling degree range, which is conducive to better ensuring the efficient operation of the floor heating system.

[0086] Similarly, when the current supercooling degree of the floor heating system is less than the lower limit of the preset supercooling degree range (such as 3°C), it indicates that the system supercooling degree is too small. At this time, the liquid refrigerant is not fully cooled in the floor heating coil. When it passes through the throttling device, it will produce more flash gas, resulting in a decrease in the mass of liquid refrigerant participating in the evaporation in the outdoor heat exchanger, causing the heating capacity of the floor heating system to decrease. Therefore, the embodiment of the present disclosure can appropriately reduce the opening of the throttling device to reduce the refrigerant flow at the outlet of the floor heating coil, thereby slightly increasing the condensing pressure of the floor heating coil, so that the supercooling degree of the floor heating system can be quickly raised to the preset supercooling degree range, which is conducive to better ensuring the efficient operation of the floor heating system.

[0087] Combination Figure 6 As shown, the embodiment of the present disclosure provides a control device 60 for a floor heating system, including a processor 61 and a memory 62. Optionally, the control device 60 may also include a communication interface 63 and a bus 64. The processor 61, the communication interface 63, and the memory 62 may communicate with each other through the bus 64. The communication interface 63 may be used for information transmission. The processor 61 may call the logic instructions in the memory 62 to execute the control method for a floor heating system of the above embodiment.

[0088] In addition, the logic instructions in the memory 62 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0089] The memory 62 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 61 executes the function application and data processing by running the program instructions / modules stored in the memory 62, that is, realizing the control method for the floor heating system in the above embodiment.

[0090] The memory 62 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 62 may include a high-speed random access memory and may also include a non-volatile memory.

[0091] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned control method for a floor heating system.

[0092] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes.

[0093] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0094] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0095] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0096] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for a floor heating system, characterized in that: The floor heating system comprises a compressor, a floor heating coil, a throttling device and an outdoor heat exchanger which are sequentially connected through a refrigerant pipeline; the control method comprises: When the floor heating system is started, obtain the current indoor temperature difference and floor heating heat storage constant; Determine the target operating frequency of the compressor based on the current indoor temperature difference and the floor heating heat storage constant; Control the compressor to start running according to the target operating frequency.

2. The method according to claim 1, characterized in that According to the current indoor temperature difference and the floor heating heat storage constant, the target operating frequency of the compressor is determined, including: Determine the target condensing temperature of the floor heating coil based on the current indoor temperature difference; According to f = a * T L +b, obtain the target operating frequency of the compressor; Where f is the target operating frequency of the compressor, a is the floor heating condensation coefficient, T L is the target condensing temperature of the floor heating coil, and b is the floor heating heat storage constant.

3. The method according to claim 2, characterized in that Determine the target condensing temperature of the floor heating coil based on the current indoor temperature difference, including: According to the current temperature difference in the room, the target condensing temperature of the floor heating coil is calculated according to the PID algorithm.

4. The method according to claim 1, characterized in that: Get the floor heating heat storage constant, including: Get the historical temperature rise effective time of the floor temperature; According to the effective duration of the historical temperature rise of the floor temperature, the corresponding floor heating heat storage constant is determined from the first preset association relationship.

5. The method according to any one of claims 1 to 4, characterized in that: Also includes: Get the external ring temperature correction constant; Correct the target operating frequency of the compressor according to the external ring temperature correction constant.

6. The method according to claim 5, characterized in that Get external temperature correction constants, including: Get the outdoor ambient temperature when the floor heating system starts heating; According to the outdoor ambient temperature, a corresponding external temperature correction constant is determined from a second preset association relationship.

7. The method according to any one of claims 1 to 4, characterized in that: After controlling the compressor to start running according to the target operating frequency, it also includes: When the floor heating system is running stably, obtain the current supercooling degree of the floor heating system; According to the current undercooling degree of the floor heating system, adjust the opening degree of the throttling device.

8. The method according to claim 7, characterized in that According to the current subcooling degree of the floor heating system, adjust the opening degree of the throttling device, including: When the current supercooling degree of the floor heating system is greater than the upper limit of the preset supercooling degree range, increasing the opening degree of the throttling device; or, When the current supercooling degree of the floor heating system is less than the lower limit value of the preset supercooling degree range, the opening degree of the throttling device is reduced.

9. A control device for a floor heating system, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for a floor heating system according to any one of claims 1 to 8 when running the program instructions.

10. A floor heating system, characterized in that: include: A compressor, a floor heating coil, a throttling device and an outdoor heat exchanger are connected in sequence through a refrigerant pipeline; The control device for a floor heating system as claimed in claim 9 is electrically connected to the compressor.

11. A computer-readable storage medium storing program instructions, characterized in that: When the program instructions are executed, the computer is used to execute the control method for the floor heating system according to any one of claims 1 to 8.

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