CN117537462A

CN117537462A - Control method and device of multi-split system, multi-split system and storage medium

Info

Publication number: CN117537462A
Application number: CN202311230266.0A
Authority: CN
Inventors: 李龙飞; 倪毅; 武连发; 傅英胜; 杨林
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2023-09-21
Filing date: 2023-09-21
Publication date: 2024-02-09

Abstract

The application relates to a control method and device of a multi-split system, the multi-split system and a storage medium, wherein the method comprises the following steps: under the condition that at least two different types of functional modules in the multi-split system need to be operated simultaneously and an outdoor host module in the multi-split system needs to be output at full load, controlling the at least two different types of functional modules in the multi-split system to be operated simultaneously, wherein the functional modules are one of an air conditioner internal unit module, a floor heating module and a hot water module, acquiring operation parameters of each functional module in the operation process in the process of simultaneously operating the at least two different types of functional modules in the multi-split system, and controlling the opening of an electronic expansion valve connected with the functional modules according to the operation parameters of the functional modules aiming at each functional module in the multi-split system. The method and the device realize that all the functional modules can run simultaneously and meet the demands of users, so that the use experience of the users is improved, and the energy efficiency of the whole multi-split system is improved.

Description

Control method and device of multi-split system, multi-split system and storage medium

Technical Field

The present disclosure relates to the field of multi-split technology, and in particular, to a control method and apparatus for a multi-split system, and a storage medium.

Background

At present, as the multi-split system can provide multiple functions (such as an air conditioning function, a floor heating function and a hot water function), the multi-split system is increasingly and widely applied to family life. When the multi-split system is used, when multiple functions of the multi-split system are simultaneously required and full-load output of an outdoor host module in the multi-split system is required, the priorities of the functions in the multi-split system are preset in general, and the requirements of the functions are sequentially met according to the priorities of the functions. However, in the above manner of realizing the requirements of each function through the priority, if the function with a high priority cannot meet the requirements all the time, the function with a low priority cannot be used, so that the waiting time of the user is longer, and further, the experience of the user is poor.

Disclosure of Invention

The application provides a control method and device of a multi-split system, the multi-split system and a storage medium, and aims to solve the problems that the existing control multi-split system is poor in user experience and energy efficiency of the multi-split system is affected.

In a first aspect, the present application provides a control method of a multi-split system, where the multi-split system includes an outdoor host module and at least two different types of functional modules, the functional modules are one of an air conditioner indoor unit module, a floor heating module and a hot water module, and each functional module is connected with the outdoor host module through an electronic expansion valve, and the method includes:

controlling at least two different types of functional modules in the multi-split system to operate simultaneously under the condition that the functional modules in the multi-split system are required to operate simultaneously and the outdoor host module is required to output at full load;

acquiring operation parameters of each functional module in the operation process in the process of simultaneously operating at least two different types of functional modules in the multi-split system;

and controlling the opening of the electronic expansion valve connected with the functional module according to the operation parameters of the functional module aiming at each functional module operated in the multi-split system.

In an optional implementation manner, when the functional module operated by one of the multiple on-line systems is the air conditioner indoor unit module, the operation parameters of the air conditioner indoor unit module include a first actual temperature of an indoor environment in which the air conditioner indoor unit module is located and a second actual temperature of a heat exchanger outlet pipe in the air conditioner indoor unit module;

The controlling the opening of the electronic expansion valve connected with the functional module according to the operation parameter of the functional module comprises the following steps:

when the functional module is the air conditioner indoor unit module, determining a first temperature difference value between a first set temperature of an indoor environment where the air conditioner indoor unit module is located and the first actual temperature;

when the first temperature difference value is larger than a first temperature difference threshold value, controlling the opening of the electronic expansion valve connected with the air conditioner indoor unit module by utilizing the second actual temperature;

and when the first temperature difference value is smaller than or equal to the first temperature difference threshold value, controlling the opening degree of the electronic expansion valve connected with the air conditioner indoor unit module to be reduced so that the first actual temperature reaches the first set temperature.

In an optional embodiment, the controlling the opening of the electronic expansion valve connected to the air conditioner module by using the second actual temperature includes:

when the second actual temperature is smaller than or equal to a first temperature threshold value, controlling the opening degree of the electronic expansion valve connected with the air conditioner indoor unit module to be increased, so that the second actual temperature is larger than the first temperature threshold value and smaller than or equal to a second temperature threshold value until the first actual temperature reaches the first set temperature;

And when the second actual temperature is greater than the second temperature threshold, controlling the opening degree of the electronic expansion valve connected with the air conditioner indoor unit module to be reduced, so that the second actual temperature is greater than the first temperature threshold and smaller than or equal to the second temperature threshold until the first actual temperature reaches the first set temperature.

In an alternative embodiment, when the functional module operated by one of the multiple on-line systems is the hot water module, the operating parameters of the hot water module include a third actual temperature of a water tank in the hot water module and an actual temperature rise rate of the water tank in the hot water module;

determining a second temperature difference between a second set temperature of the water tank in the hot water module and the third actual temperature when the functional module is the hot water module;

determining a target comparison result between the second temperature difference value and a second temperature difference threshold value;

and controlling the opening of the electronic expansion valve connected with the hot water module according to the target comparison result and the actual temperature rise rate.

In an alternative embodiment, the controlling the opening of the electronic expansion valve connected to the hot water module according to the target comparison result and the actual temperature rise rate includes:

when the target comparison result is that the second temperature difference value is larger than the second temperature difference threshold value, if the actual temperature rise rate is smaller than or equal to a first rate threshold value, controlling the opening of the electronic expansion valve connected with the hot water module to be increased so that the actual temperature rise rate is larger than the first rate threshold value and smaller than or equal to a second rate threshold value until the third actual temperature reaches the second set temperature;

and when the target comparison result is that the second temperature difference value is larger than the second temperature difference threshold value, if the actual temperature rise rate is larger than the second temperature difference threshold value, controlling the opening degree of the electronic expansion valve connected with the hot water module to be reduced so that the actual temperature rise rate is larger than the first temperature difference value and smaller than or equal to the second temperature difference value until the third actual temperature reaches the second set temperature.

In an alternative embodiment, the controlling the opening of the electronic expansion valve connected to the hot water module according to the target comparison result and the actual temperature rise rate of the water tank includes:

And when the target comparison result is that the second temperature difference value is smaller than or equal to the second temperature difference threshold value, if the actual temperature rise rate is larger than a first speed threshold value, controlling the opening degree of the electronic expansion valve connected with the hot water module to be reduced, so that the actual temperature rise rate is larger than the first speed threshold value and smaller than or equal to a second speed threshold value until the third actual temperature reaches the second set temperature.

In an optional implementation manner, when the functional module operated by one of the multiple on-line systems is the floor heating module, the operation parameter of the floor heating module includes a fourth actual temperature of an indoor environment in which the floor heating module is located;

when the functional module is the floor heating module, if the third set temperature of the indoor environment where the floor heating module is located is greater than the fourth actual temperature, controlling the opening of the electronic expansion valve connected with the floor heating module to be increased to a first preset opening so that the fourth actual temperature reaches the third set temperature, wherein the first preset opening is used for indicating the maximum opening of the electronic expansion valve connected with the floor heating module.

In an alternative embodiment, the determining that the outdoor host module requires full output includes:

determining the capacity requirement of each functional module to be operated in the multi-split system;

determining capability requirements and values among the capability requirements of all the functional modules to be operated in the multi-split system;

and when the capacity requirement sum value is larger than the preset capacity corresponding to the outdoor host module, determining that the outdoor host module needs to output full load.

In a second aspect, the present application provides a control device of a multi-split system, the multi-split system includes an outdoor host module and at least two different types of functional modules, the functional modules are one of an air conditioner indoor unit module, a floor heating module and a hot water module, each functional module is connected with the outdoor host module through an electronic expansion valve, the device includes:

the control module is used for controlling the at least two different types of functional modules in the multi-split system to operate simultaneously under the condition that the at least two different types of functional modules in the multi-split system are determined to operate simultaneously and the outdoor host module is required to output at full load;

The acquisition module is used for acquiring the operation parameters of each functional module in the operation process in the process of simultaneously operating at least two different types of functional modules in the multi-split system;

the control module is further configured to control, for each functional module running in the multiple on-line system, an opening of the electronic expansion valve connected to the functional module according to the running parameter of the functional module.

In a third aspect, the present application provides a multi-split system, including: the system comprises a processor and a memory, wherein the processor is used for executing a control program of the multi-split system stored in the memory so as to realize the control method of the multi-split system.

In a fourth aspect, the present application further provides a storage medium storing one or more programs executable by one or more processors to implement the control method of the multi-split system as described above.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages that the method provided by the embodiment of the application comprises the following steps: under the condition that at least two different types of functional modules in the multi-split system need to be operated simultaneously and an outdoor host module in the multi-split system needs to be output at full load, controlling the at least two different types of functional modules in the multi-split system to be operated simultaneously, wherein the functional modules are one of an air conditioner internal unit module, a floor heating module and a hot water module, acquiring operation parameters of each functional module in the operation process in the process of simultaneously operating the at least two different types of functional modules in the multi-split system, and controlling the opening of an electronic expansion valve connected with the functional modules according to the operation parameters of the functional modules aiming at each functional module in the multi-split system. By means of the method, the embodiment of the application simultaneously controls the operation of at least two different types of functional modules under the condition that the at least two different types of functional modules in the multi-split system are required to be operated simultaneously and the outdoor host module is required to be operated at full load, and in the operation process of each functional module, the operation parameters of each functional module are monitored to control the opening of the electronic expansion valve connected with the functional module according to the monitored operation parameters, so that the outdoor host module dynamically distributes refrigerant quantity to different functional modules according to the opening of the electronic expansion valve, the capacity requirement of each functional module is controlled, the simultaneous operation of each functional module is further realized, the user requirement can be met, the use experience of a user is improved, the heat exchanger of the outdoor host module is fully utilized, and the energy efficiency of the whole multi-split system is improved.

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 invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

Fig. 1 is a schematic flow chart of a control method of a multi-split system according to an embodiment of the present application;

FIG. 2 is a flow chart of another control method of the multi-split system according to the embodiment of the present application;

FIG. 3 is a flow chart of a control method of a multi-split system according to an embodiment of the present disclosure;

Fig. 4 is a schematic structural diagram of a multi-split system according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a control device of a multi-split system according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of another multiple on-line system according to an embodiment of the present disclosure;

in the above figures:

10. a control module; 20. an acquisition module;

401. an outdoor host module; 402. an air conditioner indoor unit module; 403. a floor heating module; 404. a hot water module; 405. an electronic expansion valve;

600. a multi-split system; 601. a processor; 602. a memory; 6021. an operating system; 6022. an application program; 603. a user interface; 604. a network interface; 605. a bus system.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

Referring to fig. 1, fig. 1 is a flow chart of a control method of a multi-split system according to an embodiment of the present application. The control method of the multi-split system provided by the embodiment of the application comprises the following steps:

s101: and under the condition that at least two different types of functional modules in the multi-split system are required to operate simultaneously and the outdoor host module is required to output full load, controlling the at least two different types of functional modules in the multi-split system to operate simultaneously.

In this embodiment, the multi-split system includes an outdoor host module and at least two different types of functional modules, where the functional modules are one of an air conditioner indoor unit module, a floor heating module and a hot water module, and each functional module is connected with the outdoor host module through an electronic expansion valve. Referring to fig. 4, the multi-split system provided in this embodiment includes three different types of functional modules, namely, an air conditioner indoor unit module 402, a floor heating module 403 and a hot water module 404, where the air conditioner indoor unit module 402 is connected with an outdoor host module 401 through an electronic expansion valve 405, the floor heating module 403 is connected with the outdoor host module 401 through the electronic expansion valve 405, and the hot water module 404 is connected with the outdoor host module 401 through the electronic expansion valve 405. Wherein, the indoor unit module 402 can be set one or more according to actual needs. When determining that at least two different types of functional modules in the multi-split system need to be operated simultaneously, it can be understood that when the multi-split system includes the air conditioning indoor unit module 402, the floor heating module 403 and the hot water module 404, if it is determined that the air conditioning indoor unit module 402 and the floor heating module 403 need to be operated simultaneously, the air conditioning indoor unit module 402 and the hot water module 404 need to be operated simultaneously, the floor heating module 403 and the hot water module 404 need to be operated simultaneously, or the air conditioning indoor unit module 402, the floor heating module 403 and the hot water module 404 need to be operated simultaneously, it can be determined that at least two different types of functional modules in the multi-split system need to be operated simultaneously.

In the above, determining that the outdoor host module needs full load output specifically includes:

determining capacity requirements and values among capacity requirements of all functional modules to be operated in the multi-split system;

and when the capacity requirement sum value is larger than the corresponding preset capacity of the outdoor host module, determining that the outdoor host module needs to output full load.

And when the capacity requirement sum value is smaller than or equal to the preset capacity corresponding to the outdoor host module, the outdoor host module is characterized to be capable of meeting the capacity requirement of simultaneously operating at least two different types of functional modules in the multi-online system. At this time, the functional modules can be controlled according to the capability requirements of the functional modules to achieve the corresponding capability requirements. And when the capacity requirement sum value is larger than the corresponding preset capacity of the outdoor host module, representing that the outdoor host module is required to output full load. The traditional mode of controlling the opening of each functional module in a priority mode easily influences the use experience of a user, and the heat exchanger outlet pipe of the outdoor host module cannot be fully utilized so as to influence the energy efficiency of the whole multi-split system. In this embodiment, under the condition that it is determined that at least two different types of functional modules in the multi-split system need to operate simultaneously and the outdoor host module needs to output at full load, at least two different types of functional modules are controlled to operate simultaneously, and in the process that two different types of functional modules operate simultaneously, the capacity requirements of each functional module are dynamically adjusted through the following step S102 and step S103, so that each functional module can meet the respective capacity requirements when operating simultaneously, and therefore the use experience of a user is improved, and the utilization rate of a heat exchanger in the outdoor host module is improved, and therefore the energy efficiency of the whole multi-split system is further improved.

It should be noted that, when determining whether the outdoor host module is fully loaded, a coefficient corresponding to the capacity requirement and the capacity value may be set, after obtaining the capacity requirement and the capacity value, a product between the capacity requirement and the capacity coefficient is determined, and when the product is greater than a preset capacity, the outdoor host module is determined to be fully loaded. And when the product is smaller than or equal to the preset capacity, characterizing that the outdoor host module can meet the capacity requirement of simultaneously operating at least two different types of functional modules in the multi-split system. The coefficient may be set according to actual needs, and the specific numerical value of the coefficient is not specifically limited in this embodiment.

In this embodiment, the capacity requirement of the air conditioner indoor unit module may be determined according to the number and capacity of all the air conditioner indoor unit modules required to operate, the actual temperature of the indoor environment where the air conditioner indoor unit module is located, the actual temperature of the outdoor environment where the outdoor host module is located, and the set temperature of the indoor environment where the air conditioner indoor unit module is located. The capacity requirement of the hot water module may be determined according to the water capacity of the water tank in the hot water module, the actual temperature of the water tank, and the set temperature of the water tank. The capacity requirement of the floor heating module can be determined according to the actual temperature of the indoor environment where the floor heating module is located, the actual temperature of the outdoor environment where the outdoor host module is located and the set temperature of the indoor environment where the floor heating module is located. The preset capacity corresponding to the outdoor host module may be set according to an actual temperature of an outdoor environment in which the outdoor host module is located.

S102: and acquiring the operation parameters of each functional module in the operation process in the process of simultaneously operating at least two different types of functional modules in the multi-split system.

In this embodiment, when one of the functional modules in the multi-split system is an air conditioner indoor unit module, the operating parameters of the air conditioner indoor unit module include a first actual temperature of an indoor environment in which the air conditioner indoor unit module is located and a second actual temperature of a heat exchanger outlet pipe in the air conditioner indoor unit module; when one running functional module in the multi-split system is a hot water module, the running parameters of the hot water module comprise the third actual temperature of the water tank in the hot water module and the actual temperature rise rate of the water tank in the hot water module; when one running functional module in the multi-split system is a floor heating module, the running parameters of the floor heating module comprise a fourth actual temperature of the indoor environment where the floor heating module is located.

The indoor environment can be provided with a temperature sensor to acquire a first actual temperature of the indoor environment where the air conditioner indoor unit module is located and a fourth actual temperature of the indoor environment where the floor heating module is located, the temperature sensor is also arranged near a heat exchanger outlet pipe in the air conditioner indoor unit module to acquire a second actual temperature of the heat exchanger outlet pipe in the air conditioner indoor unit module, and the temperature sensor is also arranged in a water tank in the hot water module to acquire a third actual temperature of the water tank. The actual temperature rise rate in the hot water module can be determined according to the ratio between the temperature change in the water tank and the detection period, the detection period can be set according to actual needs, and the specific numerical value of the detection period is not limited in the embodiment.

S103: and controlling the opening of an electronic expansion valve connected with each functional module according to the operation parameters of the functional module aiming at each functional module in the multi-split system.

In this embodiment, after the operation parameters of each functional module in the operation process are obtained, the opening degree of the electronic expansion valve of each functional module can be controlled according to the operation parameters of each functional module, so as to realize the control of the capacity requirements of different functional modules, and further, each functional module can meet the user requirements when simultaneously operating, thereby not only improving the use experience of the user, but also fully utilizing the heat exchanger of the outdoor host module and improving the energy efficiency of the whole multi-split air conditioner system.

The embodiment provides a control method of a multi-split system, which is used for controlling at least two different types of functional modules to operate simultaneously under the condition that the at least two different types of functional modules in the multi-split system are determined to operate simultaneously and the outdoor host module is required to output in full load.

Referring to fig. 2, fig. 2 is a flow chart of a control method of another multi-split system according to an embodiment of the present application. The control method of the multi-split system provided by the embodiment of the application comprises the following steps:

s201: and under the condition that at least two different types of functional modules in the multi-connection system are required to operate simultaneously and the outdoor host module is required to output full load, controlling the at least two different types of functional modules in the multi-connection system to operate simultaneously.

S202: and acquiring the operation parameters of each functional module in the operation process in the process of simultaneously operating at least two different types of functional modules in the multi-split system.

For the steps S201 and S202, the step S201 is consistent with the step S101, and the step S202 is consistent with the step S102, which are described with reference to the steps S201 and S202, and detailed descriptions thereof are omitted in this embodiment.

S203: when one running functional module in the multi-split system is an air conditioner indoor unit module, a first temperature difference value between a first set temperature and a first actual temperature of an indoor environment where the functional module is located is determined.

S204: it is determined whether the first temperature difference is greater than a first temperature difference threshold.

S205: when the first temperature difference value is larger than the first temperature difference threshold value, the opening of the electronic expansion valve connected with the air conditioner indoor unit module is controlled by utilizing the second actual temperature.

S206: when the first temperature difference value is smaller than or equal to a first temperature difference threshold value, controlling the opening degree of an electronic expansion valve connected with the air conditioner internal unit module to be reduced so that the first actual temperature reaches a first set temperature.

For the above steps S203 to S206, when there is an air conditioner indoor unit module in the multi-split system as one functional module running, the temperature of the indoor environment where the air conditioner indoor unit module is located and the temperature of the heat exchanger outlet pipe in the air conditioner indoor unit module can be detected to control the opening of the electronic expansion valve connected with the air conditioner indoor unit module, so as to realize dynamic control of the flow of the refrigerant flowing into the air conditioner indoor unit module, and further meet the capacity requirement of the air conditioner indoor unit module. The first temperature difference threshold may be set according to actual needs, and in this embodiment, a specific value of the first temperature difference threshold is not limited. The first set temperature is set by a user according to specific environmental conditions. When the first temperature difference value is larger than a first temperature difference threshold value, a first actual temperature representing the indoor environment where the air conditioner indoor unit module is located is larger than a first set temperature representing the indoor environment where the air conditioner indoor unit module is located, and at the moment, the heating capacity of the air conditioner indoor unit module is judged after the second actual temperature of the heat exchanger outlet pipe in the air conditioner indoor unit module is detected, so that the opening of an electronic expansion valve connected with the air conditioner indoor unit module is controlled according to the heating capacity of the air conditioner indoor unit module; when the first temperature difference value is smaller than or equal to the first temperature difference threshold value, the first actual temperature representing the indoor environment where the air conditioner indoor unit module is located is not different from the first set temperature representing the indoor environment where the air conditioner indoor unit module is located, at this time, the first actual temperature of the indoor environment where the air conditioner indoor unit module is located basically meets the requirements of users, the opening degree of an electronic expansion valve connected with the air conditioner indoor unit module can be controlled to be reduced until the first actual temperature reaches the first set temperature, and on the basis of reducing the opening degree of the electronic expansion valve connected with the air conditioner indoor unit module, the amount of refrigerant flowing into the air conditioner indoor unit module from the outdoor host module is reduced, so that when other operating functional modules do not meet the capability requirements, more refrigerant of the outdoor host module can flow into the other operating functional modules, the capability requirements of the other operating functional modules can be met, the simultaneous operation of the functional modules can be realized, the use experience of users can be improved, the heat exchanger in the outdoor host module can be fully utilized, and the energy efficiency of the whole multi-split system can be improved.

In this embodiment, in step S205, controlling the opening of the electronic expansion valve connected to the air conditioner indoor unit module by using the second actual temperature includes:

determining whether the second actual temperature is less than or equal to the first temperature threshold;

when the second actual temperature is smaller than or equal to the first temperature threshold value, controlling the opening degree of an electronic expansion valve connected with the air conditioner internal unit module to be increased so that the second actual temperature is larger than the first temperature threshold value and smaller than or equal to the second temperature threshold value until the first actual temperature reaches the first set temperature;

determining if the second actual temperature is greater than the second temperature threshold when the second actual temperature is greater than the first temperature threshold;

when the second actual temperature is greater than the second temperature threshold, controlling the opening degree of an electronic expansion valve connected with the air conditioner internal unit module to be reduced, so that the second actual temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold until the first actual temperature reaches the first set temperature;

when the second actual temperature is larger than the first temperature threshold and smaller than or equal to the second temperature threshold, the opening of the electronic expansion valve connected with the air conditioner indoor unit module is not required to be controlled until the first actual temperature reaches the first set temperature.

In the foregoing, specific values of the first temperature threshold and the second temperature threshold may be set according to actual needs, and in this embodiment, specific values of the first temperature threshold and the second temperature threshold are not limited. When the second actual temperature is smaller than or equal to the first temperature threshold, the fact that the heating capacity of the current air conditioner indoor unit module is weak is characterized, the opening of an electronic expansion valve connected with the air conditioner indoor unit module can be controlled to be increased, so that the amount of refrigerant flowing into the air conditioner indoor unit module from the outdoor host module is increased, the heating capacity of the air conditioner indoor unit module is further increased, and the second actual temperature is between the first temperature threshold and the second temperature threshold as soon as possible; when the second actual temperature is larger than the second temperature threshold, the heating capacity of the current air conditioner indoor unit module is higher, the opening degree of an electronic expansion valve connected with the air conditioner indoor unit module can be controlled to be reduced, so that the refrigerant quantity flowing into the air conditioner indoor unit module by the outdoor host module is reduced, the heating capacity of the air conditioner indoor unit module is further reduced, on the basis of reducing the refrigerant quantity flowing into the air conditioner indoor unit module by the outdoor host module, when the capacity requirement is not met by other running functional modules, more refrigerant quantity of the outdoor host module can flow into the other running functional modules, so that the capacity requirement of the other running functional modules can be met by the functional modules, the simultaneous running of the functional modules is realized, the use experience of users is improved, the heat exchanger in the outdoor host module can be fully utilized, and the energy efficiency of the whole multi-split system is improved; when the second actual temperature is between the first temperature threshold and the second temperature threshold, the opening of the electronic expansion valve connected with the air conditioner indoor unit module is not required to be controlled at the moment until the first actual temperature reaches the first set temperature. According to the embodiment, the second actual temperature of the heat exchanger outlet pipe in the air conditioner indoor unit module is detected to control the opening degree of the electronic expansion valve connected with the air conditioner indoor unit module, so that the second actual temperature of the heat exchanger outlet pipe in the air conditioner indoor unit module is between the first temperature threshold value and the second temperature threshold value, and the first actual temperature is gradually enabled to reach the first set temperature by utilizing the opening degree of the electronic expansion valve between the first temperature threshold value and the second temperature threshold value, so that the capacity requirement of the air conditioner indoor unit module is met.

S207: when one running functional module in the multi-split system is a hot water module, a second temperature difference value between a second set temperature and a third actual temperature of a water tank in the hot water module is determined.

S208: a target comparison result between the second temperature difference value and the second temperature difference threshold value is determined.

S209: and controlling the opening of an electronic expansion valve connected with the hot water module according to the target comparison result and the actual temperature rise rate of the water tank in the hot water module.

For the steps S207 to S209, the second temperature difference threshold may be set according to actual needs, and in this embodiment, the specific value of the second temperature difference threshold is not limited. In this embodiment, when the hot water module is running, the opening of the electronic expansion valve connected to the hot water module is controlled according to the determined target comparison result between the second temperature difference value and the second temperature difference threshold value and the obtained actual temperature rise rate of the water tank in the hot water module, so that the third actual temperature of the water tank in the hot water module gradually reaches the second set temperature, thereby meeting the capacity requirement of the hot water module.

In the above, in step S209, controlling the opening of the electronic expansion valve connected to the hot water module according to the target comparison result and the actual temperature rise rate includes:

Determining whether the target comparison result is that the second temperature difference value is larger than a second temperature difference threshold value;

when the target comparison result is that the second temperature difference value is larger than the second temperature difference threshold value, if the actual temperature rise rate is smaller than or equal to the first temperature difference threshold value, controlling the opening of an electronic expansion valve connected with the hot water module to be increased so that the actual temperature rise rate is larger than the first temperature difference threshold value and smaller than or equal to the second temperature difference threshold value until the third actual temperature reaches the second set temperature;

when the target comparison result is that the second temperature difference value is larger than the second temperature difference threshold value, if the actual temperature rise rate is larger than the second temperature difference threshold value, controlling the opening degree of an electronic expansion valve connected with the hot water module to be reduced so that the actual temperature rise rate is larger than the first temperature difference value and smaller than or equal to the second temperature difference value until the third actual temperature reaches the second set temperature;

when the target comparison result is that the second temperature difference value is larger than the second temperature difference threshold value, if the actual temperature rise rate is larger than the first rate threshold value and smaller than or equal to the second rate threshold value, the opening degree of an electronic expansion valve connected with the hot water module is not required to be controlled until the third actual temperature of the water tank in the hot water module reaches the second set temperature;

When the target comparison result is that the second temperature difference value is smaller than or equal to the second temperature threshold value, if the actual temperature rise rate is larger than the first rate threshold value, controlling the opening degree of an electronic expansion valve connected with the hot water module to be reduced so that the actual temperature rise rate is larger than the first rate threshold value and smaller than or equal to the second rate threshold value until the third actual temperature reaches the second set temperature;

when the target comparison result is that the second temperature difference value is smaller than or equal to the second temperature threshold value, if the actual temperature rising rate is smaller than or equal to the first rate threshold value, the opening degree of an electronic expansion valve connected with the hot water module is not required to be controlled until the third actual temperature of the water tank in the hot water module reaches the second set temperature.

In this embodiment, when the target comparison result is that the second temperature difference value is greater than the second temperature difference threshold, the difference between the third actual temperature of the water tank in the hot water module and the second set temperature is larger, and the difference between the third actual temperature of the water tank in the hot water module and the second set temperature of the water tank in the hot water module is larger. Specifically, when the actual temperature rising rate is smaller than or equal to the first rate threshold, the heating water capacity of the hot water module is weak, and the opening of the electronic expansion valve connected with the hot water module can be controlled to be increased, so that the refrigerant quantity flowing into the hot water module by the outdoor host module is increased, the heating water capacity of the hot water module is further increased, and the actual temperature rising rate is between the first rate threshold and the second rate threshold as soon as possible; when the actual temperature rise speed is greater than the second speed threshold, the heating water capacity of the hot water module is higher, the opening degree of an electronic expansion valve connected with the hot water module can be controlled to be reduced, so that the refrigerant quantity flowing into the hot water module from an outdoor host module is reduced, the heating water capacity of the hot water module is further reduced, on the basis of reducing the refrigerant quantity flowing into the hot water module from the outdoor host module, when other running functional modules do not meet the capacity requirement, more refrigerant quantity of the outdoor host module can flow into the other running functional modules, so that the other running functional modules also meet the capacity requirement of the respective functional modules, the simultaneous running of the functional modules is realized, the use experience of users is improved, the heat exchanger in the outdoor host module can be fully utilized, and the energy efficiency of the whole multi-online system is improved; when the actual temperature rise rate is between the first rate threshold value and the second rate threshold value, the opening degree of the electronic expansion valve connected with the hot water module is not required to be controlled until the third actual temperature reaches the second set temperature. In this embodiment, the temperature rising rate of the water tank in the hot water module is detected to control the opening of the electronic expansion valve connected with the hot water module, so that the actual temperature rising rate of the water tank in the hot water module is between the first speed threshold and the second speed threshold, and the third actual temperature gradually reaches the second set temperature by using the opening of the electronic expansion valve between the first speed threshold and the second speed threshold, thereby meeting the capacity requirement of the hot water module.

In this embodiment, when the second temperature difference is less than or equal to the second temperature threshold, the third actual temperature of the water tank in the hot water module is not greatly different from the second set temperature of the water tank in the hot water module, at this time, the actual temperature rising rate of the water tank in the hot water module is detected, and when the actual temperature rising rate is greater than the first rate threshold, the heating capacity of the hot water module is stronger at this time, the opening of the electronic expansion valve connected with the hot water module can be reduced by controlling the opening of the electronic expansion valve so that the actual temperature rising rate is maintained between the first rate threshold and the second rate threshold, and the opening of the electronic expansion valve between the first rate threshold and the second rate threshold is utilized to enable the third actual temperature to reach the second set temperature, and on the basis of reducing the opening of the electronic expansion valve connected with the air conditioner internal unit module, the refrigerant quantity flowing into the hot water module from the outdoor host module is reduced, so that when the capacity requirement is not met by other functional modules, more quantities of the outdoor host module can be flowed into the functional modules, and the functional modules can be fully operated by using the functional modules, and the capacity of the other functional modules can be fully utilized by the functional modules; and when the actual temperature rise rate is smaller than or equal to the first rate threshold value, the opening degree of the electronic expansion valve connected with the hot water module is not required to be controlled until the third actual temperature reaches the second set temperature.

S210: when one running functional module in the multi-split system is a floor heating module, determining whether a third set temperature of an indoor environment where the floor heating module is located is larger than a fourth actual temperature.

S211: when the third set temperature is larger than the fourth actual temperature, controlling the opening of the electronic expansion valve connected with the floor heating module to be increased to a first preset opening so that the fourth actual temperature reaches the third set temperature.

S212: and when the third set temperature is smaller than or equal to the fourth actual temperature, the opening degree of the electronic expansion valve connected with the floor heating module is not required to be controlled.

For the steps S210 to S212, the first preset opening is used to indicate the maximum opening of the electronic expansion valve connected to the floor heating module. When the third set temperature of the indoor environment where the floor heating module is located is larger than the fourth actual temperature of the indoor environment where the floor heating module is located, the fourth actual temperature of the indoor environment where the floor heating module is located is characterized as having larger difference from the third set temperature of the indoor environment where the floor heating module is located, and when the floor heating is required to run, the requirements of users are generally urgent, so when the third set temperature is larger than the fourth actual temperature, the opening of the electronic expansion valve connected with the floor heating module can be directly controlled to the maximum opening until the final fourth actual temperature reaches the third set temperature, and the floor heating module can reach the capacity requirement; and when the third set temperature is smaller than or equal to the fourth actual temperature, the fact that the floor heating module reaches the capacity requirement currently is indicated, and at the moment, the opening of an electronic expansion valve connected with the floor heating module is not required to be controlled.

As an example, referring to fig. 3, a control process of the multi-split system including the air conditioner indoor unit module, the hot water module, and the floor heating module is specifically described as follows:

when the indoor unit module, the hot water module and the floor heating module of the air conditioner are determined to be operated simultaneously and the outdoor host module in the multi-split system is required to output in a full load mode, the indoor unit module, the hot water module and the floor heating module of the air conditioner are controlled to be operated simultaneously;

In the process that the air conditioner indoor unit module, the hot water module and the floor heating module are operated simultaneously, acquiring a first actual temperature of an indoor environment where the air conditioner indoor unit module is positioned, a second actual temperature of a heat exchanger outlet pipe in the air conditioner indoor unit module, a third actual temperature of a water tank in the hot water module, an actual temperature rise rate of the water tank in the hot water module and a fourth actual temperature of the indoor environment where the floor heating module is positioned;

the control process for the hot water module is as follows:

judging whether a second temperature difference value between a second set temperature of a water tank in the hot water module and a third actual temperature of the water tank in the hot water module is larger than a second temperature difference threshold value;

if so, judging whether the first rate threshold value a is smaller than the actual temperature rise rate of the water tank and smaller than the second rate threshold value b;

a) If the actual temperature rise rate is less than or equal to the first rate threshold a, controlling the opening of an electronic expansion valve connected with the hot water module to be increased, increasing the flow of the refrigerant, and increasing the water heating capacity, so that the first rate threshold a is less than the actual temperature rise rate and less than or equal to the second rate threshold b until the third actual temperature reaches the second set temperature;

b) If the actual temperature rise rate is larger than the second rate threshold b, controlling the opening of an electronic expansion valve connected with the hot water module to be reduced, reducing the flow of a refrigerant, reducing the water heating capacity, and enabling the first rate threshold a to be smaller than the actual temperature rise rate and smaller than or equal to the second rate threshold b until the third actual temperature reaches a second set temperature;

c) If the first speed threshold value a is smaller than the actual temperature rise speed and smaller than the second speed threshold value b, the opening degree of the electronic expansion valve connected with the hot water module is maintained unchanged until the third actual temperature reaches the second set temperature.

If not, judging whether the first rate threshold value a is smaller than the actual temperature rise rate;

a) If not, the opening degree of the electronic expansion valve connected with the hot water module is maintained unchanged until the third actual temperature reaches the second set temperature.

b) If yes, controlling the opening of an electronic expansion valve connected with the hot water module to be reduced, reducing the flow of the refrigerant, reducing the water heating capacity, enabling the first speed threshold value a to be smaller than the actual temperature rise rate, and until the third actual temperature reaches the second set temperature.

The control process for the air conditioner indoor unit module is as follows:

judging whether a first temperature difference value between a first set temperature of an indoor environment where the air conditioner indoor unit module is positioned and a first actual temperature of the indoor environment where the air conditioner indoor unit module is positioned is larger than a first temperature difference threshold value;

if so, judging whether the first temperature threshold value c is less than the second actual temperature tc of the heat exchanger outlet pipe in the air conditioner inner unit module is less than or equal to the second temperature threshold value d,

a) If tc is less than or equal to c, controlling an electronic expansion valve connected with the air conditioner internal unit module to increase, increasing the flow of the refrigerant, and increasing the heating capacity of the air conditioner, so that c is less than or equal to d, which is the second actual temperature tc of the heat exchanger outlet pipe in the air conditioner internal unit module, until the first actual temperature reaches the first set temperature;

b) If tc is greater than d, controlling an electronic expansion valve connected with the air conditioner internal unit module to be reduced, reducing the flow of a refrigerant, reducing the heating capacity of the air conditioner, and enabling c to be less than the second actual temperature tc of a heat exchanger outlet pipe in the air conditioner internal unit module and less than d until the first actual temperature reaches a first set temperature;

c) If c is smaller than the second actual temperature tc of the heat exchanger outlet pipe in the air conditioner indoor unit module and smaller than d, the opening degree of the electronic expansion valve connected with the air conditioner indoor unit module is maintained unchanged until the first actual temperature reaches the first set temperature.

If not, the opening degree of the electronic expansion valve connected with the air conditioner internal unit module is controlled to be reduced until the first actual temperature reaches the first set temperature.

The control process for the floor heating module is as follows:

judging whether the third set temperature of the indoor environment where the floor heating module is located is more than the fourth actual temperature of the indoor environment where the floor heating module is located; if yes, the electronic expansion valve connected with the floor heating module is fully opened until the fourth actual temperature reaches the third set temperature; if not, the fourth actual temperature reaches the third set temperature, and the opening degree of the electronic expansion valve connected with the air conditioner internal unit module is kept unchanged.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a control device of a multi-split system according to an embodiment of the present application. The control device of the multi-split system provided by the embodiment of the application comprises a control module 10 and an acquisition module 20. The multi-split air conditioner comprises an air conditioner indoor unit module, a floor heating module and a hot water module, wherein the multi-split air conditioner system comprises an outdoor host module and at least two functional modules of different types, each functional module is one of the air conditioner indoor unit module, the floor heating module and the hot water module, and each functional module is connected with the outdoor host module through an electronic expansion valve. The control module 10 is configured to control at least two different types of functional modules in the multi-split system to operate simultaneously when it is determined that the at least two different types of functional modules in the multi-split system need to operate simultaneously and the outdoor host module needs to output at full load; the acquiring module 20 is configured to acquire an operation parameter of each functional module in an operation process during a process of simultaneously operating at least two different types of functional modules in the multi-split system; the control module 10 is further configured to control, for each functional module that operates in the multiple on-line system, an opening of the electronic expansion valve connected to the functional module according to the operation parameter of the functional module.

In this embodiment, when the functional module running in one of the multiple on-line systems is the air conditioner indoor unit module, the running parameter of the air conditioner indoor unit module includes a first actual temperature of an indoor environment in which the air conditioner indoor unit module is located and a second actual temperature of a heat exchanger outlet pipe in the air conditioner indoor unit module.

In the present embodiment, the control module 10 is further configured to:

In this embodiment, when the functional module that one of the multiple on-line systems operates is the hot water module, the operation parameters of the hot water module include a third actual temperature of a water tank in the hot water module and an actual temperature rise rate of the water tank in the hot water module.

In the present embodiment, the control module 10 is further configured to:

In this embodiment, when the functional module running in one of the multiple on-line systems is the floor heating module, the running parameter of the floor heating module includes a fourth actual temperature of an indoor environment in which the floor heating module is located.

In the present embodiment, the control module 10 is further configured to:

The multi-split control device provided in this embodiment further includes a determining module, where the determining module is configured to:

According to the control device of the multi-split system, under the condition that at least two different types of functional modules in the multi-split system are required to be operated simultaneously and the outdoor host module is required to be output in a full load mode, the operation of the at least two different types of functional modules is controlled simultaneously, in the operation process of each functional module, the operation parameters of each functional module are monitored, the opening of the electronic expansion valve connected with the functional module is controlled according to the monitored operation parameters, so that the outdoor host module dynamically distributes refrigerant quantity to different functional modules according to the opening of the electronic expansion valve, the capacity requirements of each functional module are controlled, the fact that the simultaneous operation of each functional module can meet the user requirements is achieved, the use experience of users is improved, the heat exchanger of the outdoor host module can be fully utilized, and the energy efficiency of the whole multi-split system is improved.

Fig. 6 is a schematic structural diagram of a multi-split system according to an embodiment of the present application. The multi-split system 600 shown in fig. 6 includes: at least one processor 601, memory 602, at least one network interface 604, and other user interfaces 603. The various components in multi-split system 600 are coupled together by bus system 605. It is understood that the bus system 405 is used to enable connected communications between these components. The bus system 605 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various buses are labeled as bus system 605 in fig. 6.

The user interface 603 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, a trackball, a touch pad, or a touch screen, etc.).

It is to be appreciated that the memory 602 in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and Direct memory bus RAM (DRRAM). The memory 602 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In some implementations, the memory 602 stores the following elements, executable units or data structures, or a subset thereof, or an extended set thereof: an operating system 6021 and application programs 6022.

The operating system 6021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 6022 includes various application programs such as a Media Player (Media Player), a Browser (Browser), and the like for realizing various application services. A program for implementing the method of the embodiment of the present application may be included in the application 6022.

In the embodiment of the present application, the processor 601 is configured to execute the method steps provided by the method embodiments by calling a program or an instruction stored in the memory 602, specifically, a program or an instruction stored in the application 6022, including, for example: under the condition that at least two different types of functional modules in the multi-split system need to be operated simultaneously and an outdoor host module in the multi-split system needs to be output at full load, controlling the at least two different types of functional modules in the multi-split system to be operated simultaneously, wherein the functional modules are one of an air conditioner internal unit module, a floor heating module and a hot water module, acquiring operation parameters of each functional module in the operation process in the process of simultaneously operating the at least two different types of functional modules in the multi-split system, and controlling the opening of an electronic expansion valve connected with the functional modules according to the operation parameters of the functional modules aiming at each functional module in the multi-split system.

The method disclosed in the embodiments of the present application may be applied to the processor 601 or implemented by the processor 601. The processor 601 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 601 or instructions in the form of software. The processor 601 may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software elements in a decoded processor. The software elements may be located in a random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory 602, and the processor 601 reads information in the memory 602 and performs the steps of the above method in combination with its hardware.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units may be implemented within one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (dspev, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented by means of units that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

The multi-split system provided in this embodiment may be a multi-split system as shown in fig. 6, and may perform all steps of the control method of the multi-split system as shown in fig. 1-3, so as to achieve the technical effects of the control method of the multi-split system as shown in fig. 1-3, and the detailed description is omitted herein for brevity.

The embodiment of the application also provides a storage medium (computer readable storage medium). The storage medium here stores one or more programs. Wherein the storage medium may comprise volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, hard disk, or solid state disk; the memory may also comprise a combination of the above types of memories.

When one or more programs in the storage medium can be executed by one or more processors, the control method of the multi-split system executed on the control device side of the multi-split system is realized.

The processor is used for executing a control program of the multi-split system stored in the memory so as to realize the following steps of a control method of the multi-split system executed on a control equipment side of the multi-split system: under the condition that at least two different types of functional modules in the multi-split system need to be operated simultaneously and an outdoor host module in the multi-split system needs to be output at full load, controlling the at least two different types of functional modules in the multi-split system to be operated simultaneously, wherein the functional modules are one of an air conditioner internal unit module, a floor heating module and a hot water module, acquiring operation parameters of each functional module in the operation process in the process of simultaneously operating the at least two different types of functional modules in the multi-split system, and controlling the opening of an electronic expansion valve connected with the functional modules according to the operation parameters of the functional modules aiming at each functional module in the multi-split system.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of function in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It should be noted that references in the specification to "one implementation," "an embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be noted that in this document, relational terms such as "first" and "second" and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The utility model provides a control method of many online systems, its characterized in that, many online systems includes outdoor host computer module and at least two different grade type functional module, the functional module is one of air conditioner internal unit module, ground warm module and hot water module, every functional module passes through electronic expansion valve with outdoor host computer module is connected, the method includes:

2. The method of claim 1, wherein when the functional module operated by one of the multiple on-line systems is the air conditioner indoor module, the operating parameters of the air conditioner indoor module include a first actual temperature of an indoor environment in which the air conditioner indoor module is located and a second actual temperature of a heat exchanger outlet pipe in the air conditioner indoor module;

3. The method according to claim 2, wherein controlling the opening degree of the electronic expansion valve connected to the air conditioner indoor unit module using the second actual temperature includes:

4. The method of claim 1, wherein when the functional module operated by one of the multi-split systems is the hot water module, the operating parameters of the hot water module include a third actual temperature of a tank in the hot water module and an actual rate of temperature rise of the tank in the hot water module;

5. The method of claim 4, wherein controlling the opening of the electronic expansion valve connected to the hot water module according to the target comparison result and the actual temperature rise rate comprises:

6. The method of claim 4, wherein controlling the opening of the electronic expansion valve connected to the hot water module according to a target comparison result and the actual temperature rise rate of the water tank, comprises:

7. The method of claim 1, wherein when the functional module operated by one of the multi-split systems is the floor heating module, the operating parameter of the floor heating module includes a fourth actual temperature of an indoor environment in which the floor heating module is located;

8. The method of claim 1, wherein said determining that the outdoor host module requires full output comprises:

9. The utility model provides a controlling means of many online systems, its characterized in that, many online systems includes outdoor host computer module and at least two different grade type functional module, the functional module is one of air conditioner internal unit module, ground warm module and hot water module, every functional module pass through electronic expansion valve with outdoor host computer module is connected, the device includes:

10. A multi-split system, comprising: the system comprises a processor and a memory, wherein the processor is used for executing a control program of the multi-split system stored in the memory so as to realize the control method of the multi-split system according to any one of claims 1 to 8.

11. A storage medium storing one or more programs executable by one or more processors to implement the method of controlling the multi-split system of any one of claims 1 to 8.