Control system, method, apparatus, air handler, air conditioner, device, and medium

Abstract

The application relates to a control system, method, device, air processor, air conditioner, equipment and medium. The method comprises the following steps: acquiring air temperature information corresponding to an external environment of an air conditioner and determining a target heat exchange amount of the air conditioner according to the air temperature information; acquiring water temperature information corresponding to an internal environment of the air conditioner and determining an actual heat exchange amount of the air conditioner according to the water temperature information; and controlling on-off states of a first coil and a second coil in the air conditioner and the rotating speed of a fan in the air conditioner according to the target heat exchange amount and the actual heat exchange amount. The water paths of the two coils are independent, so that the two coils have the ability of independent heat dissipation or independent refrigeration. Therefore, by controlling the on-off states of the two coils and the rotating speed of the fan, the heat dissipation amount of the air conditioner can be adjusted, the ambient temperature of the environment where the air conditioner is located can be adjusted, and the demand of a user for changing the indoor temperature at any time can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of Internet of Things, and in particular to a control system, method and device, an air handling unit, an air conditioner, equipment and a medium. BACKGROUND

[0002] With the development of economy, people's living standards are constantly improving, and the demand for quality of life is also rising. Air conditioners, as an important device to improve the quality of life, are becoming more and more popular. To meet more complex user needs, air conditioner product categories have become more diverse and refined. Air handling units are very popular because of their low energy consumption and ability to maintain indoor space temperature and humidity stability. However, the existing air handling units are only equipped with one coil, which results in single temperature regulation of the air conditioner and cannot meet the different needs of users for indoor temperature at different times. SUMMARY

[0003] The present application provides a control system, method and device, an air handling unit, an air conditioner, equipment and a medium to solve the problem of single temperature regulation of the existing air conditioner, which cannot meet the different needs of users for indoor temperature at different times.

[0004] To solve the above technical problems, the technical solution of the present application is as follows:

[0005] The present application provides an air conditioner control system, comprising: a temperature sensor group, a first coil, a second coil, a fan and a control device; wherein the temperature sensor group detects air temperature information corresponding to the external environment of the air conditioner and water temperature information corresponding to the internal environment of the air conditioner; the first coil and the second coil are arranged between the air inlet and the air outlet of the air conditioner; wherein the pipe diameter of the first coil is smaller than the pipe diameter of the second coil; the control device is connected to the temperature sensor group, the first coil, the second coil and the fan respectively, and controls the on-off state of the first coil and the second coil and the speed of the fan according to the air temperature information and the water temperature information reported by the temperature sensor group.

[0006] The first coil comprises a first water valve arranged at the water inlet of the first coil; the second coil comprises a second water valve arranged at the water inlet of the second coil; the control device is connected to the first water valve and the second water valve, and controls the on-off state of the first water valve and the second water valve respectively.

[0007] The embodiment of the present application further provides an air conditioner control method, which is applied to the control device in the air conditioner control system, and comprises the following steps: obtaining air temperature information corresponding to an external environment of an air conditioner and determining a target heat exchange amount of the air conditioner according to the air temperature information; obtaining water temperature information corresponding to an internal environment of the air conditioner and determining an actual heat exchange amount of the air conditioner according to the water temperature information; and controlling on-off states of a first coil and a second coil in the air conditioner and the rotating speed of a fan in the air conditioner according to the target heat exchange amount and the actual heat exchange amount.

[0008] The air temperature information comprises an environment temperature corresponding to the external environment of the air conditioner; and the step of determining the target heat exchange amount of the air conditioner according to the air temperature information comprises the following steps: obtaining a set temperature corresponding to the external environment of the air conditioner; and determining the target heat exchange amount of the air conditioner according to a difference between the set temperature and the environment temperature, a preset air specific heat capacity and a preset air mass.

[0009] The water temperature information comprises a first inlet water temperature at an inlet of the first coil, a first outlet water temperature at an outlet of the first coil, a second inlet water temperature at an inlet of the second coil and a second outlet water temperature at an outlet of the second coil; and the step of determining the actual heat exchange amount of the air conditioner according to the water temperature information comprises the following steps: determining a coil heat exchange amount corresponding to the first coil according to a difference between the first inlet water temperature and the first outlet water temperature, the preset air specific heat capacity and the preset air mass; determining an actual heat exchange amount corresponding to the first coil as a sum of the coil heat exchange amount corresponding to the first coil and a preset loss heat exchange amount; determining a coil heat exchange amount corresponding to the second coil according to a difference between the second inlet water temperature and the second outlet water temperature, the air specific heat capacity and the air mass; determining an actual heat exchange amount corresponding to the second coil as a sum of the coil heat exchange amount corresponding to the second coil and the loss heat exchange amount; and determining the actual heat exchange amount of the air conditioner as a sum of the actual heat exchange amount corresponding to the first coil and the actual heat exchange amount corresponding to the second coil.

[0010] The step of controlling the on-off states of the first coil and the second coil in the air conditioner and the rotating speed of the fan in the air conditioner according to the target heat exchange amount and the actual heat exchange amount comprises the following steps: in a case where the target heat exchange amount is greater than the actual heat exchange amount, controlling a first water valve arranged at an inlet of the first coil to be opened, controlling a second water valve arranged at an inlet of the second coil to be opened and controlling the fan to operate at a preset first rotating speed; and in a case where the target heat exchange amount is equal to the actual heat exchange amount, maintaining the current on-off states of the first coil and the second coil in the air conditioner and the current rotating speed of the fan in the air conditioner.

[0011] Wherein, the on-off status of the first coil and the second coil in the air conditioner are respectively controlled according to the target heat exchange rate and the actual heat exchange rate, and the speed of the fan in the air conditioner is linked to be controlled, including: when the target heat exchange rate is less than the actual heat exchange rate, determining the on-off status of the first water valve arranged at the water inlet of the first coil and the on-off status of the second water valve arranged at the water inlet of the second coil; when the first water valve and the second water valve are both open, controlling the second water valve to close and controlling the fan to operate at a preset second speed; when the first water valve is open and the second water valve is closed, controlling the first water valve to close, controlling the second water valve to open and controlling the fan to operate at a preset third speed; wherein, the first speed is greater than the second speed, and the second speed is greater than the third speed.

[0012] Among them, before obtaining the temperature information corresponding to the preset air-conditioning external environment, it also includes: after the air-conditioning is started, controlling the first water valve set at the water inlet of the first coil to open, controlling the second water valve set at the water inlet of the second coil to close, and controlling the fan to operate at a preset second speed; starting from the start of the air-conditioning, obtaining the temperature information corresponding to the preset air-conditioning external environment once every preset time period.

[0013] An embodiment of the present application also provides an air-conditioning control device, including: a first acquisition module, used to obtain air temperature information corresponding to the external environment of the air-conditioning and determine the target heat exchange rate of the air-conditioning based on the air temperature information; a second acquisition module, used to obtain water temperature information corresponding to the internal environment of the air-conditioning and determine the actual heat exchange rate of the air-conditioning based on the water temperature information; a control module, used to control the on and off states of the first coil and the second coil in the air-conditioning according to the target heat exchange rate and the actual heat exchange rate, and to control the speed of the fan in the air-conditioning in a linkage manner.

[0014] An embodiment of the present application also provides an air handling unit, comprising any of the above-mentioned air conditioning control systems.

[0015] An embodiment of the present application also provides an air conditioner, comprising any of the air conditioning control systems described above.

[0016] An embodiment of the present application also provides an air-conditioning control device, comprising: at least one communication interface; at least one bus connected to the at least one communication interface; at least one processor connected to the at least one bus; and at least one memory connected to the at least one bus, wherein the processor is configured to: execute the air-conditioning control program stored in the memory to implement any of the above-mentioned air-conditioning control methods.

[0017] The embodiment of the present application further provides a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are executed to implement the air conditioner control method.

[0018] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: the method provided by the embodiment of the present application can acquire the air temperature information corresponding to the external environment of the air conditioner and determine the target heat exchange amount of the air conditioner according to the air temperature information; acquire the water temperature information corresponding to the internal environment of the air conditioner and determine the actual heat exchange amount of the air conditioner according to the water temperature information; and control the on-off state of the first coil and the second coil in the air conditioner and the rotating speed of the fan in the air conditioner according to the target heat exchange amount and the actual heat exchange amount, respectively. The water paths of the two coils in the embodiment of the present application are independent, so that the two coils can have the ability of independent heat dissipation or independent refrigeration. In this way, by controlling the on-off state of the two coils and the rotating speed of the fan, respectively, the heat dissipation amount of the air conditioner can be adjusted, and then the environment temperature of the environment where the air conditioner is located can be adjusted, so as to meet the demand of the user who wants to change the indoor temperature at any time. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate one embodiment consistent with the present application and, together with the description, serve to explain the principles of the application.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, those skilled in the art can obtain other drawings from these drawings without any creative effort.

[0021] One or more embodiments are exemplarily illustrated by pictures in the drawings corresponding to the embodiments, and these exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings do not constitute a proportional limitation.

[0022] Figure 1 FIG. 1 is a structural diagram of an air conditioner control system according to an embodiment of the present application;

[0023] Figure 2 FIG. 2 is a flowchart of an air conditioner control method according to an embodiment of the present application;

[0024] Figure 3 FIG. 3 is a flowchart of a step of determining an actual heat exchange amount according to an embodiment of the present application;

[0025] Figure 4 FIG. 4 is a flowchart of a step in an automatic mode according to an embodiment of the present application;

[0026] Figure 5 A structure diagram of an air conditioner control device according to an embodiment of the present application is shown.

[0027] Figure 6 A structure diagram of an air conditioner control device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0028] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0029] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the components and arrangements of the various examples are shown in the following description. It should be understood, however, that they are only examples and are not intended to limit the present application. Furthermore, the present application can be implemented in a variety of environments and systems. In addition, the present application is not limited to the specific examples described herein, but the specific examples contribute to providing an excellent working hypothesis for the field to further develop based on the related background art.

[0030] An air conditioner control system is provided in the embodiments of the present application. As shown in Figure 1 A structure diagram of an air conditioner control system according to an embodiment of the present application is shown.

[0031] In the embodiments of the present application, the air conditioner control system at least includes a temperature sensor group (not shown in the figure), a first coil 1, a second coil 2, a fan 3 and a control device (not shown in the figure). Among them, the first coil 1 and the second coil 2 are arranged in Figure 1 The area inside the dashed box.

[0032] The temperature sensor group detects the air temperature information corresponding to the external environment and the water temperature information corresponding to the internal environment of the air conditioner. The type of air conditioner includes but is not limited to water machine air conditioner. The external environment of the air conditioner refers to the space environment where the air conditioner is located. For example: the indoor environment where the air conditioner is located. The air temperature information includes but is not limited to the environmental temperature corresponding to the space environment where the air conditioner is located. The internal environment of the air conditioner refers to the internal environment of the air conditioner. The water temperature information includes but is not limited to the water flow temperature in the air conditioner.

[0033] The first coil 1 and the second coil 2 are both arranged between the air inlet 4 and the air outlet 5 of the air conditioner; wherein the pipe diameter of the first coil 1 is smaller than the pipe diameter of the second coil 2.

[0034] The control device is connected to the temperature sensor group, the first coil pipe 1, the second coil pipe 2 and the fan 3 respectively, and controls the on-off state of the first coil pipe 1 and the second coil pipe 2 and the rotating speed of the fan 3 according to the air temperature information and the water temperature information detected by the temperature sensor group.

[0035] In the embodiment of the present application, the temperature sensor group includes a plurality of temperature sensors arranged at different positions. The types of temperature sensors include temperature sensors for detecting ambient temperature and temperature sensors for detecting water temperature. The number of temperature sensors for detecting ambient temperature is at least one, which can be arranged in the external environment of the air conditioner. The number of temperature sensors for detecting water temperature is four, which are arranged at the water inlet 11 of the first coil pipe 1, the water outlet 12 of the first coil pipe 1, the water inlet 21 of the second coil pipe 2 and the water outlet 22 of the second coil pipe 2 respectively.

[0036] In the embodiment of the present application, the first coil pipe 1 and the second coil pipe 2 are arranged between the air inlet 4 and the air outlet 5 of the air conditioner. After the fan 3 is started, the airflow enters the air duct from the air inlet 4, passes through the first coil pipe 1 first, then passes through the second coil pipe 2, and then exits the air duct from the air outlet 5. In this way, the water circuits of the first coil pipe 1 and the second coil pipe 2 are connected in parallel and the air circuits are connected in series.

[0037] In the embodiment of the present application, the first coil pipe 1 includes a first water valve arranged at the water inlet 11 of the first coil pipe 1; the second coil pipe 2 includes a second water valve arranged at the water inlet 21 of the second coil pipe 2; and the control device is connected to the first water valve and the second water valve to control the on-off state of the first water valve and the second water valve respectively.

[0038] In the embodiment of the present application, the control module controls the on-off state of the first coil pipe and the second coil pipe and the rotating speed of the fan according to the ambient temperature corresponding to the external environment of the air conditioner, the first water inlet temperature at the water inlet of the first coil pipe, the first water outlet temperature at the water outlet of the first coil pipe, the second water inlet temperature at the water inlet of the second coil pipe and the second water outlet temperature at the water outlet of the second coil pipe.

[0039] In the embodiment of the present application, two coil pipes with different diameters are arranged, so that the air circuits of the two coil pipes are connected in series and the water circuits are connected in parallel, that is, the two coil pipes share one fan and one air duct and the water circuits of the two coil pipes are independent of each other. The independent water circuits of the two coil pipes can provide independent heat dissipation or refrigeration capacity. Thus, the embodiment of the present application provides a double-water system air conditioner, and the heat exchange capacity of the air conditioner can be adjusted by controlling the on-off state of the two coil pipes and the rotating speed of the fan, thereby adjusting the ambient temperature of the environment where the air conditioner is located.

[0040] Based on the air conditioner control system, the embodiment of the present application provides an air handling unit. The air handling unit is also called air handling unit. The air handling unit is used as the terminal equipment of the air conditioning system. The air handling unit includes the air conditioner control system.

[0041] Based on the air conditioner control system, the embodiment of the present application provides an air conditioner control method. The execution subject of the embodiment of the present application is the control device in the air conditioner control system. Figure 2 The flow chart of the air conditioner control method according to an embodiment of the present application.

[0042] In step S210, the temperature information corresponding to the external environment of the air conditioner is obtained, and the target heat exchange amount of the air conditioner is determined according to the temperature information.

[0043] The temperature information includes but is not limited to the ambient temperature corresponding to the external environment of the air conditioner.

[0044] The target heat exchange amount refers to the theoretical heat exchange amount of the air conditioner.

[0045] In step S220, the water temperature information corresponding to the internal environment of the air conditioner is obtained, and the actual heat exchange amount of the air conditioner is determined according to the water temperature information.

[0046] The water temperature information includes but is not limited to the water flow temperature corresponding to the internal environment of the air conditioner.

[0047] The actual heat exchange amount refers to the actual heat exchange amount provided by the two water paths of the first coil and the second coil in the air conditioner.

[0048] In step S230, the target heat exchange amount and the actual heat exchange amount are compared, and the on-off state of the first coil and the second coil in the air conditioner is controlled, and the speed of the fan in the air conditioner is controlled.

[0049] The on-off state includes the connected state and the disconnected state. The connected state means that water can flow through the coil. The disconnected state means that water cannot flow through the coil.

[0050] Because there is a temperature difference between the inlet water temperature and the outlet water temperature of the internal coil of the air conditioner, and the air flow condition of the environment where the air conditioner is located, the target heat exchange amount and the actual heat exchange amount of the air conditioner are different. Therefore, the target heat exchange amount and the actual heat exchange amount are compared, the on-off state of the first coil and the second coil in the air conditioner is controlled, and the speed of the fan in the air conditioner is controlled.

[0051] In the case that the target heat exchange amount is greater than the actual heat exchange amount, it indicates that the actual heat exchange amount provided by the two water circuits of the air conditioner cannot reach the target heat exchange amount, the actual heat exchange amount of the air conditioner is insufficient, and the demand of the user for the heat exchange amount cannot be met, at this time, the first coil and the second coil in the air conditioner are controlled to be in the connected state, and the fan in the air conditioner is controlled to operate at the preset first rotating speed, so as to increase the heat exchange amount of the air conditioner.

[0052] In the case that the target heat exchange amount is equal to the actual heat exchange amount, it indicates that the actual heat exchange amount provided by the two water circuits of the air conditioner meets the target heat exchange amount, at this time, the current on-off state of the first coil and the second coil and the current rotating speed of the fan are maintained.

[0053] In the case that the target heat exchange amount is less than the actual heat exchange amount, it indicates that the actual heat exchange amount provided by the two water circuits of the air conditioner has exceeded the target heat exchange amount, the heat exchange amount of the air conditioner is too much, at this time, one of the first coil and the second coil in the air conditioner is controlled to be in the connected state, and the other coil is controlled to be in the disconnected state, and the fan is controlled to operate at the rotating speed corresponding to the coil in the connected state, so as to reduce the heat exchange amount of the air conditioner.

[0054] In the embodiment of the present application, the air temperature information corresponding to the preset external environment of the air conditioner is obtained, and the target heat exchange amount of the air conditioner is determined according to the air temperature information; the water temperature information corresponding to the internal environment of the air conditioner is obtained, and the actual heat exchange amount of the air conditioner is determined according to the water temperature information; the on-off state of the first coil and the second coil in the air conditioner is controlled respectively according to the target heat exchange amount and the actual heat exchange amount, and the rotating speed of the fan in the air conditioner is controlled in linkage. The water circuits of the two coils in the embodiment of the present application are independent, and the two coils can have independent heat dissipation or independent refrigeration capacity, so that by controlling the on-off state of the two coils and the rotating speed of the fan respectively, the heat dissipation amount of the air conditioner can be adjusted, and then the environment temperature of the environment where the air conditioner is located can be adjusted to meet the demand of the user who wants to change the indoor temperature at any time.

[0055] Further, since the pipe diameters of the two coils in the embodiment of the present application are different, the coil with a small pipe diameter has a larger heat exchange amount, and the coil with a large pipe diameter has a smaller water resistance. Therefore, by separately controlling the coil with a small pipe diameter to be turned on and separately controlling the coil with a large pipe diameter to be turned on, the air conditioner can obtain different heat exchange amounts, and different heat exchange amounts can adjust the environment temperature of the environment where the air conditioner is located to be different; in the case that both of the two coils are controlled to be turned on, the superimposed heat exchange amount of the two coils can be obtained, and the heat exchange speed is faster.

[0056] In order to make the embodiment of the present application more clear, the air conditioner control method of the embodiment of the present application will be described further.

[0057] In the embodiment of the present application, after the air conditioner is started, the first water valve arranged at the water inlet of the first coil is opened, the second water valve arranged at the water inlet of the second coil is closed, and the fan is controlled to operate at a preset second rotating speed. Starting from the start of the air conditioner, the air temperature information corresponding to the preset external environment of the air conditioner is acquired once every preset time period. That is to say, every preset time period, it is re-judged whether the on-off state of the first coil and the second coil and the rotating speed of the fan need to be adjusted.

[0058] Further, the length of the preset time period can be determined according to requirements. For example, the length of the preset time period is 120 seconds.

[0059] In the embodiment of the present application, the air temperature information corresponding to the preset external environment of the air conditioner is acquired, and the target heat exchange amount of the air conditioner is determined according to the air temperature information.

[0060] The air temperature information includes the ambient temperature corresponding to the external environment of the air conditioner.

[0061] Specifically, the set temperature corresponding to the external environment of the air conditioner is acquired; and the target heat exchange amount of the air conditioner is determined according to the difference between the set temperature and the ambient temperature, and the preset specific heat capacity of air and the preset air mass.

[0062] The set temperature refers to the temperature set by the user, that is, the temperature that the user hopes to achieve.

[0063] Further, since the on-off state of the first coil and the second coil is frequently adjusted, the water temperature may fluctuate when detected. Therefore, when determining the target heat exchange amount, the capacity difference value introduced by the fluctuation can be considered. In this way, the initial target heat exchange amount of the air conditioner can be determined according to the difference between the set temperature and the ambient temperature, and the preset specific heat capacity of air and the preset air mass; the absolute value of the difference between the initial target heat exchange amount and the preset capacity difference value is calculated, and the absolute value is determined as the target heat exchange amount of the air conditioner.

[0064] For example, the initial target heat exchange amount of the air conditioner can be determined by the following formula:

[0065] Q = c × m × (Tout-Tin);

[0066] Wherein, Q represents the initial target heat exchange amount; c represents the specific heat capacity of air; m represents the air mass; Tout represents the set temperature; and Tin represents the ambient temperature. The air exchange frequency and the air exchange volume of the environment where the air conditioner is located within the preset time period can be determined; and the product of the air exchange frequency and the air exchange volume is multiplied by the preset air density to obtain the air mass.

[0067] Further, a temperature value detected by a temperature sensor in the temperature sensor group for detecting an ambient temperature is acquired. The ambient temperature refers to a temperature of an environment in which the air conditioner is located. For example, an indoor temperature of a location where the air conditioner is located.

[0068] In the embodiments of the present application, water temperature information corresponding to an internal environment of the air conditioner is acquired, and an actual heat exchange amount of the air conditioner is determined according to the water temperature information.

[0069] The water temperature information includes a first inlet water temperature at an inlet of the first coil, a first outlet water temperature at an outlet of the first coil, a second inlet water temperature at an inlet of the second coil, and a second outlet water temperature at an outlet of the second coil.

[0070] Specifically, the step of determining the actual heat exchange amount can be implemented by referring to the flowchart of the step of determining the actual heat exchange amount shown in FIG. 3. Figure 3

[0071] In step S310, a first inlet water temperature at an inlet of the first coil, a first outlet water temperature at an outlet of the first coil, a second inlet water temperature at an inlet of the second coil, and a second outlet water temperature at an outlet of the second coil are acquired.

[0072] In step S320, a coil heat exchange amount corresponding to the first coil is determined according to a difference between the first inlet water temperature and the first outlet water temperature, and a preset air specific heat capacity and a preset air mass, and a sum of the coil heat exchange amount corresponding to the first coil and a preset loss heat exchange amount is determined as an actual heat exchange amount corresponding to the first coil.

[0073] In step S330, a coil heat exchange amount corresponding to the second coil is determined according to a difference between the second inlet water temperature and the second outlet water temperature, and the air specific heat capacity and the air mass, and a sum of the coil heat exchange amount corresponding to the second coil and the loss heat exchange amount is determined as an actual heat exchange amount corresponding to the second coil.

[0074] In step S340, a sum of the actual heat exchange amount corresponding to the first coil and the actual heat exchange amount corresponding to the second coil is determined as an actual heat exchange amount of the air conditioner.

[0075] ​Further, the first water inlet temperature, the first water outlet temperature, the second water inlet temperature and the second water outlet temperature of the first coil and the second coil can be obtained according to the current on-off state of the first coil and the second coil. If the first coil is in the on state, the first water inlet temperature and the first water outlet temperature of the first coil are both the detected temperature values. If the first coil is in the off state, the first water inlet temperature and the first water outlet temperature of the first coil are both 0. If the second coil is in the on state, the second water inlet temperature and the second water outlet temperature of the second coil are both the detected temperature values. If the second coil is in the off state, the second water inlet temperature and the second water outlet temperature of the second coil are both 0.

[0076] For example, for each of the first coil and the second coil, the actual heat exchange amount of the coil can be determined by the following formula:

[0077] Q' = Q P + Q S ;

[0078] Q P = c x m x (T 进 - T 出 ) ;

[0079] wherein Q' represents the actual heat exchange amount of the current coil; Q P represents the coil heat exchange amount of the coil, Q S represents the preset loss heat exchange amount; c represents the specific heat capacity of air; m represents the air mass; T 进 represents the water inlet temperature of the coil; and T 出 represents the water outlet temperature of the coil.

[0080] Further, the loss heat exchange amount is an empirical value or a value obtained through experiments.

[0081] Further, the temperature value detected by the temperature sensor for detecting the water temperature in the temperature sensor group is obtained. Further, the temperature values detected by the temperature sensors respectively arranged at the water inlet of the first coil, the water outlet of the first coil, the water inlet of the second coil and the water outlet of the second coil are obtained.

[0082] In the embodiments of the present application, the on-off state of the first coil and the second coil in the air conditioner and the rotation speed of the fan in the air conditioner are respectively controlled according to the target heat exchange amount and the actual heat exchange amount.

[0083] Further, the first rotational speed corresponding to the case that both the first coil and the second coil are in the communication state can be preset, the second rotational speed corresponding to the case that the first coil is in the communication state and the second coil is in the closed state can be preset, and the third rotational speed corresponding to the case that the first coil is in the closed state and the second coil is in the communication state can be preset. The rotational speeds are in descending order as follows: the first rotational speed, the second rotational speed, and the third rotational speed.

[0084] In the case that the target heat exchange amount is greater than the actual heat exchange amount, the first water valve arranged at the water inlet of the first coil is controlled to be opened, the second water valve arranged at the water inlet of the second coil is controlled to be opened, and the fan is controlled to operate at the preset first rotational speed. Further, if the current on-off state of the first coil and the second coil is that both the first coil and the second coil are in the communication state, the first water valve arranged at the water inlet of the first coil is maintained to be opened and the second water valve arranged at the water inlet of the second coil is maintained to be opened; if the current on-off state of the first coil and the second coil is that one of the first coil and the second coil is in the communication state, the coil in the closed state is adjusted to be in the communication state, i.e., the water valve corresponding to the coil is opened, and in addition, the rotational speed of the fan is adjusted to be the first rotational speed.

[0085] In the case that the target heat exchange amount is equal to the actual heat exchange amount, the current on-off state of the first coil and the second coil in the air conditioner and the current rotational speed of the fan in the air conditioner are maintained.

[0086] In the case that the target heat exchange amount is less than the actual heat exchange amount, the on-off state of the first water valve arranged at the water inlet of the first coil and the on-off state of the second water valve arranged at the water inlet of the second coil are determined; in the case that both the first water valve and the second water valve are opened, the second water valve is controlled to be closed and the fan is controlled to operate at the preset second rotational speed; in the case that the first water valve is opened and the second water valve is closed, the first water valve is controlled to be closed, the second water valve is controlled to be opened, and the fan is controlled to operate at the preset third rotational speed; wherein the first rotational speed is greater than the second rotational speed, and the second rotational speed is greater than the third rotational speed. Of course, in the case that the target heat exchange amount is less than the actual heat exchange amount, if the first water valve is closed and the second water valve is opened, the first water valve is maintained to be closed and the second water valve is maintained to be opened.

[0087] In the embodiments of the present application, the ambient temperature of the environment where the air conditioner is located can be acquired in real time; the set temperature and the ambient temperature are compared; and according to the comparison result, the opening degree of the water valve arranged at the water inlet of the coil currently in the communication state is adjusted by using a proportional-integral-derivative control (PID) mode. For example, if the ambient temperature is greater than the set temperature, the opening degree of the water valve is controlled to decrease by a preset gradient value; if the ambient temperature is less than the set temperature, the opening degree of the water valve is controlled to increase by the gradient value; and if the ambient temperature is equal to the set temperature, the current opening degree of the water valve is maintained. The gradient value can be an empirical value or a value obtained through experiments.

[0088] In order to make the embodiments of the present application more easily understood, a more specific example is provided below to further describe the air conditioner control method of the embodiments of the present application.

[0089] In the example, three gears are set, which are high gear, middle gear and low gear. In the example, the middle gear can be taken as the default gear.

[0090] The high gear corresponds to the maximum heat exchange amount. In the high gear, the first water valve of the water inlet of the first coil is opened, the second water valve of the water inlet of the second coil is opened, and the fan adopts the first rotating speed.

[0091] The middle gear corresponds to the medium heat exchange amount. In the middle gear, the first water valve of the water inlet of the first coil is opened, the second water valve of the water inlet of the second coil is closed, and the fan adopts the second rotating speed.

[0092] The low gear corresponds to the minimum heat exchange amount. In the low gear, the first water valve of the water inlet of the first coil is closed, the second water valve of the water inlet of the second coil is opened, and the fan adopts the third rotating speed.

[0093] In the example, an automatic mode and a manual mode are set. The automatic mode means that whether the air conditioner needs to adjust the gear is automatically detected, and when it is determined that the gear needs to be adjusted, the gear is automatically adjusted. The manual mode means that the gear of the air conditioner is adjusted according to the gear selected by the user. For example, the user can manually adjust the gear to the high gear if the user wants to increase the heat exchange amount, and the user can manually adjust the gear to the low gear if the user wants to reduce the heat exchange amount.

[0094] As shown in FIG. 6, it is a step flow chart in the automatic mode according to an embodiment of the present application. Figure 4

[0095] Step S410, after the air conditioner is started, the middle gear as the default gear is entered, that is, the first water valve of the water inlet of the first coil is controlled to be opened, the second water valve of the water inlet of the second coil is controlled to be closed, and the fan is controlled to rotate at the second rotating speed. ​

[0096] Step S420, after the air conditioner is started, the target heat exchange amount and the actual heat exchange amount of the air conditioner are determined at intervals of a preset time period.

[0097] For example, after the air conditioner is continuously operated for 120 seconds, the air temperature information corresponding to the preset external environment of the air conditioner is acquired, and the target heat exchange amount of the air conditioner is determined according to the air temperature information; the water temperature information corresponding to the internal environment of the air conditioner is acquired, and the actual heat exchange amount of the air conditioner is determined according to the water temperature information.

[0098] Step S430, the current gear of the air conditioner is adjusted by comparing the target heat exchange amount |Q-X| and the actual heat exchange amount Q' of the air conditioner.

[0099] If |Q-X|>Q', the high gear is entered, the first water valve of the water inlet of the first coil pipe is opened, the second water valve of the water inlet of the second coil pipe is opened, and the fan is controlled to operate at the first rotating speed.

[0100] If |Q-X|=Q', the middle gear is kept.

[0101] If |Q-X|>Q', the low gear is entered, the first water valve of the water inlet of the first coil pipe is closed, the second water valve of the water inlet of the second coil pipe is opened, and the fan is controlled to operate at the third rotating speed.

[0102] Under the current gear, the environment temperature is continuously detected in real time; the environment temperature and the set temperature are compared; according to the comparison result, the PID control is performed on the coil pipe currently in the connected state, so as to adjust the opening degree of the water valve arranged at the water inlet of the coil pipe. For example, if the environment temperature is greater than the set temperature, the opening degree of the water valve is controlled to decrease by a preset gradient value; if the environment temperature is less than the set temperature, the opening degree of the water valve is controlled to increase by the gradient value; if the environment temperature is equal to the set temperature, the current opening degree of the water valve is kept.

[0103] Step S440, the air conditioner is continuously operated, and the target heat exchange amount and the actual heat exchange amount of the air conditioner are determined again at intervals of a preset time period.

[0104] After the air conditioner is continuously operated for 120 seconds, that is, after the air conditioner is started, the target heat exchange amount of the air conditioner is determined according to the air temperature information corresponding to the preset external environment of the air conditioner at intervals of a preset time period; the actual heat exchange amount of the air conditioner is determined according to the water temperature information corresponding to the internal environment of the air conditioner; the target heat exchange amount (that is, |Q-X|) and the actual heat exchange amount Q' of the air conditioner are compared.

[0105] Step S450, the current gear of the air conditioner is read, and the current gear of the air conditioner is adjusted by comparing the target heat exchange amount and the actual heat exchange amount of the air conditioner.

[0106] If |Q-X|>Q', the current gear is identified; if the current gear is a high gear, the high gear is maintained, and if the current gear is a middle gear or a low gear, the gear is increased by one. That is, if the current gear is a middle gear, the gear is increased to a high gear, and if the current gear is a low gear, the gear is increased to a middle gear.

[0107] If |Q-X|=Q', the current gear is maintained.

[0108] If |Q-X|>Q', the current gear is identified; if the current gear is a low gear, the low gear is maintained, and if the current gear is a high gear or a middle gear, the gear is decreased by one. That is, if the current gear is a high gear, the gear is decreased to a middle gear, and if the current gear is a middle gear, the gear is decreased to a low gear.

[0109] In this example, after step S450 is performed, the process jumps to step S440 until the air conditioner is stopped.

[0110] In this example, the fan can be a variable frequency motor. The variable frequency motor can be a three-gear motor, and the speed of the motor is adjusted according to the carbon dioxide range value.

[0111] The application achieves the adjustment of the air volume and the heat of the air conditioner to meet the different cooling and heating load demands of the user in different time periods by designing a terminal equipment structure of a double-water system air conditioner, and adjusting the flow and the fan according to the variable flow and the variable air volume to achieve the control method of the heat exchange capacity (the refrigerating capacity or the heating capacity). Meanwhile, the intelligent control of the air conditioner is achieved by switching between the working modes, the comfort degree is met, the user operation is reduced, and the purpose of reducing the energy consumption is achieved.

[0112] The application also provides an air conditioner control device. As shown in Figure 5 the structural diagram of the air conditioner control device according to an embodiment of the application.

[0113] The air conditioner control device comprises:

[0114] A first acquisition module 510 is configured to acquire temperature information corresponding to an external environment of an air conditioner and determine a target heat exchange capacity of the air conditioner according to the temperature information.

[0115] A second acquisition module 520 is configured to acquire water temperature information corresponding to an internal environment of the air conditioner and determine an actual heat exchange capacity of the air conditioner according to the water temperature information.

[0116] A control module 530 is configured to control the on-off state of a first coil pipe and a second coil pipe in the air conditioner and the speed of a fan in the air conditioner according to the target heat exchange capacity and the actual heat exchange capacity, respectively.

[0117] The functions of the device described in the embodiments of the present application have been described in the method embodiments described above, and thus the descriptions of the embodiments of the present application are not described in detail. For details, refer to the relevant descriptions in the foregoing embodiments, which are not described herein.

[0118] The embodiments of the present application also provide an air conditioner control device, as shown in Figure 6 Fig. 1 is a structural diagram of an air conditioner control device according to an embodiment of the present application.

[0119] The air conditioner control device includes a processor 610, a communication interface 620, a memory 630, and a communication bus 640. The processor 610, the communication interface 620, and the memory 630 communicate with each other through the communication bus 640.

[0120] The memory 630 is used to store a computer program.

[0121] In an embodiment of the present application, when the processor 610 executes the program stored in the memory 630, the air conditioner control method provided by any one of the foregoing method embodiments is implemented, including: obtaining air temperature information corresponding to an external environment of an air conditioner and determining a target heat exchange amount of the air conditioner according to the air temperature information; obtaining water temperature information corresponding to an internal environment of the air conditioner and determining an actual heat exchange amount of the air conditioner according to the water temperature information; and controlling the on-off state of a first coil and a second coil in the air conditioner and the rotating speed of a fan in the air conditioner according to the target heat exchange amount and the actual heat exchange amount, respectively.

[0122] The air temperature information includes an environmental temperature corresponding to the external environment of the air conditioner, and the determination of the target heat exchange amount of the air conditioner according to the air temperature information includes: obtaining a set temperature corresponding to the external environment of the air conditioner; and determining the target heat exchange amount of the air conditioner according to the difference between the set temperature and the environmental temperature, a preset air specific heat capacity, and a preset air mass.

[0123] The water temperature information includes: a first inlet water temperature at an inlet of the first coil, a first outlet water temperature at an outlet of the first coil, a second inlet water temperature at an inlet of the second coil, and a second outlet water temperature at an outlet of the second coil; the actual heat exchange amount of the air conditioner is determined according to the water temperature information, including: determining the coil heat exchange amount corresponding to the first coil according to the difference between the first inlet water temperature and the first outlet water temperature, and the preset air specific heat capacity and the preset air mass; and determining the actual heat exchange amount corresponding to the first coil as the sum of the coil heat exchange amount corresponding to the first coil and the preset loss heat exchange amount; determining the coil heat exchange amount corresponding to the second coil according to the difference between the second inlet water temperature and the second outlet water temperature, and the air specific heat capacity and the air mass; and determining the actual heat exchange amount corresponding to the second coil as the sum of the coil heat exchange amount corresponding to the second coil and the loss heat exchange amount; and determining the actual heat exchange amount of the air conditioner as the sum of the actual heat exchange amount corresponding to the first coil and the actual heat exchange amount corresponding to the second coil.

[0124] The target heat exchange amount and the actual heat exchange amount are used to control the on-off state of the first coil and the second coil in the air conditioner and to control the rotating speed of the fan in the air conditioner, including: in the case that the target heat exchange amount is greater than the actual heat exchange amount, the first water valve arranged at the inlet of the first coil is controlled to be opened, the second water valve arranged at the inlet of the second coil is controlled to be opened, and the fan is controlled to operate at a preset first rotating speed; in the case that the target heat exchange amount is equal to the actual heat exchange amount, the current on-off state of the first coil and the second coil in the air conditioner and the current rotating speed of the fan in the air conditioner are maintained.

[0125] The target heat exchange amount and the actual heat exchange amount are used to control the on-off state of the first coil and the second coil in the air conditioner and to control the rotating speed of the fan in the air conditioner, including: in the case that the target heat exchange amount is less than the actual heat exchange amount, the opening and closing state of the first water valve arranged at the inlet of the first coil and the opening and closing state of the second water valve arranged at the inlet of the second coil are determined; in the case that the first water valve and the second water valve are both opened, the second water valve is controlled to be closed, and the fan is controlled to operate at a preset second rotating speed; in the case that the first water valve is opened and the second water valve is closed, the first water valve is controlled to be closed, the second water valve is controlled to be opened, and the fan is controlled to operate at a preset third rotating speed; wherein the first rotating speed is greater than the second rotating speed, and the second rotating speed is greater than the third rotating speed.

[0126] Before the air conditioner is started, the first water valve is opened, the second water valve is closed, and the fan is controlled to rotate at a preset second rotating speed.

[0127] The embodiment of the present application further provides a computer readable storage medium, which has a computer program stored thereon, and the computer program is executed by a processor to realize the steps of the air conditioner control method provided by any one of the foregoing method embodiments. Since the air conditioner control method has been described in detail above, the description of the embodiment is not elaborated, and the related description in the foregoing embodiments can be referred to, which will not be repeated here.

[0128] The apparatus embodiments described above are only schematic, and the units illustrated as separate components may or may not be physically separate, and the components illustrated as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment.

[0129] Through the description of the foregoing embodiments, those skilled in the art can clearly understand that each embodiment can be realized by means of software plus a general hardware platform, and of course can also be realized by hardware. Based on such understanding, the foregoing technical solutions essentially or in other words the part that contributes to the related art can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, or an optical disk, and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0130] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically indicated as such. It is also to be understood that additional or alternative steps can be employed.

[0131] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above. Rather, the general scope of the application is to be determined by the appended claims and their equivalents.

Claims

1. An air conditioning control method, characterized in that: A control device used in an air conditioning control system; wherein, The air-conditioning control system includes: a temperature sensor group, a first coil, a second coil, a fan and the control device; wherein, the temperature sensor group detects air temperature information corresponding to the external environment of the air conditioner and water temperature information corresponding to the internal environment of the air conditioner; the first coil and the second coil are both arranged between the air inlet and the air outlet of the air conditioner; wherein, the diameter of the first coil is smaller than the diameter of the second coil; the control device is respectively connected to the temperature sensor group, the first coil, the second coil and the fan, and controls the first coil according to the air temperature information and the water temperature information reported by the temperature sensor group. and the on / off state of the second coil and the linkage control of the fan speed; the first coil includes a first water valve provided at the water inlet of the first coil; the second coil includes a second water valve provided at the water inlet of the second coil; the control device is connected to the first water valve and the second water valve to control the on / off state of the first water valve and the second water valve respectively; the water temperature information includes: a first water inlet temperature at the water inlet of the first coil, a first water outlet temperature at the water outlet of the first coil, a second water inlet temperature at the water inlet of the second coil, and a second water outlet temperature at the water outlet of the second coil; The air conditioning control method includes: Acquiring temperature information corresponding to the external environment of the air conditioner and determining a target heat exchange amount of the air conditioner according to the temperature information; Acquiring water temperature information corresponding to the internal environment of the air conditioner and determining an actual heat exchange amount of the air conditioner based on the water temperature information; According to the target heat exchange amount and the actual heat exchange amount, the on / off states of the first coil and the second coil in the air conditioner are controlled respectively, and the speed of the fan in the air conditioner is controlled in a linked manner.

2. The method according to claim 1, characterized in that The temperature information includes: the ambient temperature corresponding to the external environment of the air conditioner; Determining the target heat exchange amount of the air conditioner according to the temperature information includes: Obtaining a set temperature corresponding to the external environment of the air conditioner; The target heat exchange amount of the air conditioner is determined according to the difference between the set temperature and the ambient temperature, a preset air specific heat capacity, and a preset air quality.

3. The method according to claim 1, characterized in that Determining the actual heat exchange amount of the air conditioner according to the water temperature information includes: determining a coil heat exchange capacity corresponding to the first coil based on a difference between the first water inlet temperature and the first water outlet temperature, a preset air specific heat capacity, and a preset air mass; and determining a sum of the coil heat exchange capacity corresponding to the first coil and a preset heat loss as an actual heat exchange capacity corresponding to the first coil; determining a coil heat exchange capacity corresponding to the second coil according to the difference between the second water inlet temperature and the second water outlet temperature, the air specific heat capacity, and the air mass; and determining the sum of the coil heat exchange capacity corresponding to the second coil and the heat exchange loss as the actual heat exchange capacity corresponding to the second coil; The sum of the actual heat exchange corresponding to the first coil and the actual heat exchange corresponding to the second coil is determined as the actual heat exchange of the air conditioner.

4. The method according to claim 1, wherein The method of controlling the on / off states of the first coil and the second coil in the air conditioner and controlling the speed of the fan in the air conditioner in a linked manner according to the target heat exchange amount and the actual heat exchange amount includes: When the target heat exchange amount is greater than the actual heat exchange amount, the first water valve provided at the water inlet of the first coil is controlled to be opened, the second water valve provided at the water inlet of the second coil is controlled to be opened, and the fan is controlled to operate at a preset first speed; When the target heat exchange amount is equal to the actual heat exchange amount, the current on / off states of the first coil and the second coil in the air conditioner and the current rotation speed of the fan in the air conditioner are maintained.

5. The method according to claim 4, characterized in that The method of controlling the on / off states of the first coil and the second coil in the air conditioner and controlling the speed of the fan in the air conditioner in a linked manner according to the target heat exchange amount and the actual heat exchange amount includes: When the target heat exchange amount is less than the actual heat exchange amount, determining the on / off state of a first water valve provided at the water inlet of the first coil and the on / off state of a second water valve provided at the water inlet of the second coil; When both the first water valve and the second water valve are open, controlling the second water valve to close and controlling the fan to operate at a preset second speed; When the first water valve is open and the second water valve is closed, the first water valve is controlled to be closed, the second water valve is controlled to be open, and the fan is controlled to operate at a preset third speed; wherein the first speed is greater than the second speed, and the second speed is greater than the third speed.

6. The method according to claim 1, characterized in that Before obtaining the temperature information corresponding to the external environment of the air conditioner, the method further includes: After the air conditioner is started, a first water valve provided at the water inlet of the first coil is controlled to be opened, a second water valve provided at the water inlet of the second coil is controlled to be closed, and the fan is controlled to operate at a preset second speed; From the start of the air conditioner, the temperature information corresponding to the preset air conditioner external environment is obtained every preset time period.

7. An air conditioning control device, characterized in that: Applied in air conditioning control systems; among them, The air-conditioning control system includes: a temperature sensor group, a first coil, a second coil, a fan and the air-conditioning control device; wherein, the temperature sensor group detects air temperature information corresponding to the external environment of the air-conditioning and water temperature information corresponding to the internal environment of the air-conditioning; the first coil and the second coil are both arranged between the air inlet and the air outlet of the air-conditioning; wherein, the diameter of the first coil is smaller than the diameter of the second coil; the air-conditioning control device is respectively connected to the temperature sensor group, the first coil, the second coil and the fan, and controls the first coil according to the air temperature information and the water temperature information reported by the temperature sensor group. The on-off state of the coil and the second coil and the linkage control of the fan speed; the first coil includes a first water valve provided at the water inlet of the first coil; the second coil includes a second water valve provided at the water inlet of the second coil; the air conditioning control device is connected to the first water valve and the second water valve to control the on-off state of the first water valve and the second water valve respectively; the water temperature information includes: a first water inlet temperature at the water inlet of the first coil, a first water outlet temperature at the water outlet of the first coil, a second water inlet temperature at the water inlet of the second coil, and a second water outlet temperature at the water outlet of the second coil; The air conditioning control device comprises: a first acquisition module, configured to acquire temperature information corresponding to the external environment of the air conditioner and determine a target heat exchange rate of the air conditioner according to the temperature information; a second acquisition module, configured to acquire water temperature information corresponding to the internal environment of the air conditioner and determine an actual heat exchange amount of the air conditioner according to the water temperature information; The control module is used to control the on / off status of the first coil and the second coil in the air conditioner according to the target heat exchange amount and the actual heat exchange amount, and to control the speed of the fan in the air conditioner in a linked manner.

8. An air handling unit, characterized in that: The air conditioning control method according to any one of claims 1 to 6 is adopted.

9. An air conditioner, characterized in that: The air conditioning control method according to any one of claims 1 to 6 is adopted.

10. An air conditioning control device, characterized in that: include: at least one communication interface; at least one bus connected to the at least one communication interface; at least one processor connected to the at least one bus; At least one memory connected to the at least one bus, wherein the processor is configured to: execute an air-conditioning control program stored in the memory to implement the air-conditioning control method according to any one of claims 1-6.

11. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed to implement the air-conditioning control method according to any one of claims 1 to 6.

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