Warehouse air conditioner temperature and humidity control method and device, air conditioner, storage medium and electronic equipment

Abstract

The invention provides a temperature and humidity control method and device for a warehouse air conditioner, the air conditioner, a storage medium and electronic device.The method comprises the steps that the return air temperature and return air humidity of the warehouse air conditioner are detected; according to the return air temperature and the return air humidity, the indoor temperature state and the indoor humidity state of the warehouse air conditioner are recognized correspondingly, and the indoor temperature state is used for representing the matching relation between the current indoor temperature of the warehouse air conditioner and the optimal storage temperature of stored objects in a warehouse; the indoor humidity state is used for representing the matching relation between the current indoor humidity of the warehouse air conditioner and the optimal storage humidity of stored objects in the warehouse; and the evaporation temperature and the fan speed of the warehouse air conditioner are controlled according to the indoor temperature state and the indoor humidity state. The technical problem that in the prior art, a warehouse air conditioner cannot accurately control the temperature and humidity in the warehouse is solved, and the accuracy of controlling the temperature and humidity in the warehouse by the air conditioner is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular, to a method and device for controlling the temperature and humidity of a warehouse air conditioner, an air conditioner, a storage medium, and an electronic device. Background Art

[0002] In the related art, the preservation of grains is affected by external adverse factors such as dryness, heat and humidity, and mold. How to reduce the loss caused by the quality change of grains in the warehousing link is of great significance in the issue of food security.

[0003] When ordinary air conditioners are used for temperature and humidity control in granaries, since their original design intention is for the human comfortable environment and not specifically for the needs of grain storage, there are obvious deficiencies in the accuracy and stability of temperature and humidity control. This inaccurate control will lead to increased fluctuations in the temperature and humidity in the granary. When the temperature and humidity in the granary are too high, condensation will occur, which will cause the grains to get damp, moldy, and infested with insects, reducing the storage stability. When the granary is too dry, it will cause the rice grains to crack at the waist, which will affect the processing quality and the rice yield rate. In addition, unreasonable temperature and humidity will also lead to abnormal respiration of grains and unstable moisture content, exacerbating the metabolic loss and storage loss inside the grain pile.

[0004] In view of the above problems existing in the related art, no efficient and accurate solution has been found yet. Summary of the Invention

[0005] The present invention provides a method and device for controlling the temperature and humidity of a warehouse air conditioner, an air conditioner, a storage medium, and an electronic device to solve the technical problem of inaccurate control of the temperature and humidity in the warehouse by the warehouse air conditioner in the related art.

[0006] According to an embodiment of the present invention, a method for controlling the temperature and humidity of a warehouse air conditioner is provided, including: detecting the return air temperature and return air humidity of the warehouse air conditioner; respectively identifying the indoor temperature state and indoor humidity state of the warehouse air conditioner according to the return air temperature and the return air humidity, wherein the indoor temperature state is used to characterize the matching relationship between the current indoor temperature of the warehouse air conditioner and the optimal storage temperature of the stored items in the warehouse, and the indoor humidity state is used to characterize the matching relationship between the current indoor humidity of the warehouse air conditioner and the optimal storage humidity of the stored items in the warehouse; controlling the evaporation temperature and the fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state.

[0007] Optionally, controlling the evaporation temperature and the fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state includes: determining whether the indoor temperature state is a high temperature state; if the indoor temperature state is a high temperature state, controlling the evaporation temperature of the warehouse air conditioner to be 0°C, and controlling the fan speed of the warehouse air conditioner based on the indoor humidity state.

[0008] Optionally, controlling the fan speed of the warehouse air conditioner based on the indoor humidity state includes: determining whether the indoor humidity state is a high humidity state; if the indoor humidity state is a high humidity state, controlling the fan state of the warehouse air conditioner to be in the medium speed state; if the indoor humidity state is a low humidity state, controlling the fan state of the warehouse air conditioner to be in the maximum speed state and turning on the humidifying component; if the indoor humidity state is a medium humidity state, controlling the fan state of the warehouse air conditioner to be in the maximum speed state, wherein the wind speed in the medium speed state is less than the wind speed in the maximum speed state.

[0009] Optionally, controlling the evaporation temperature and the fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state includes: determining whether the indoor temperature state is a low temperature state; if the indoor temperature state is a low temperature state, determining whether the indoor humidity state is a high humidity state; if the indoor humidity state is a high humidity state, controlling the evaporation temperature of the warehouse air conditioner to be less than the dew point temperature and controlling the fan state of the warehouse air conditioner to be in the lowest speed state.

[0010] Optionally, after determining whether the indoor humidity state is a high humidity state, the method further includes: if the indoor humidity state is a low humidity state, controlling the refrigeration component of the warehouse air conditioner to be in the standby state, controlling the fan state of the warehouse air conditioner to be in the maximum speed state, and turning on the humidifying component; if the indoor humidity state is a medium humidity state, controlling the refrigeration component of the warehouse air conditioner to be in the standby state and controlling the fan state of the warehouse air conditioner to be in the lowest speed state.

[0011] Optionally, controlling the evaporation temperature and the fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state includes: if the indoor temperature state is a medium temperature state, determining whether the indoor humidity state is a high humidity state; if the indoor humidity state is a high humidity state, controlling the evaporation temperature of the warehouse air conditioner to be lower than the dew point temperature and controlling the fan state of the warehouse air conditioner to be in the lowest speed state.

[0012] Optionally, after determining whether the indoor humidity state is a high humidity state, the method further includes: if the indoor humidity state is a medium humidity state, controlling the lowest evaporation temperature of the warehouse air conditioner to be equal to the dew point temperature and controlling the fan state of the warehouse air conditioner to be in the lowest speed state; if the indoor humidity state is a low humidity state, controlling the lowest evaporation temperature of the warehouse air conditioner to be equal to the dew point temperature, controlling the fan state of the warehouse air conditioner to be in the highest speed state, and turning on the humidifying component.

[0013] Optionally, the method further includes: determining whether the warehouse air conditioner enters a defrosting mode; if the warehouse air conditioner enters the defrosting mode, starting a hot water spraying device, where the hot water spraying device is used to spray hot water on the evaporator of the warehouse air conditioner; determining whether the evaporator enters a dripping state; if the evaporator enters the dripping state, turning off the spraying device; determining whether the dripping state ends; if the dripping state ends, controlling the warehouse air conditioner to terminate the defrosting mode.

[0014] Optionally, respectively identifying the indoor temperature state and the indoor humidity state of the warehouse air conditioner according to the return air temperature and the return air humidity includes: detecting the storage item category of the stored items in the warehouse of the warehouse air conditioner; searching for the optimal storage temperature range and the optimal storage humidity range matching the storage item category; determining whether the return air temperature is within the optimal storage temperature range and determining whether the return air humidity is within the optimal storage humidity range; if the return air temperature is within the optimal storage temperature range, determining that the indoor temperature state is a medium temperature state, if the return air temperature is greater than the maximum temperature of the optimal storage temperature range, determining that the indoor temperature state is a high temperature state, if the return air temperature is less than the minimum temperature of the optimal storage temperature range, determining that the indoor temperature state is a low temperature state; if the return air humidity is within the optimal storage humidity range, determining that the indoor humidity state is a medium humidity state, if the return air humidity is greater than the maximum humidity of the optimal storage humidity range, determining that the indoor humidity state is a high humidity state, if the return air humidity is less than the minimum humidity of the optimal storage humidity range, determining that the indoor humidity state is a low humidity state.

[0015] According to another embodiment of the present invention, there is provided a temperature and humidity control device for a warehouse air conditioner, including: a detection module for detecting the return air temperature and the return air humidity of the warehouse air conditioner; an identification module for respectively identifying the indoor temperature state and the indoor humidity state of the warehouse air conditioner according to the return air temperature and the return air humidity, where the indoor temperature state is used to characterize the matching relationship between the current indoor temperature of the warehouse air conditioner and the optimal storage temperature of the stored items in the warehouse, and the indoor humidity state is used to characterize the matching relationship between the current indoor humidity of the warehouse air conditioner and the optimal storage humidity of the stored items in the warehouse; a control module for controlling the evaporation temperature and the fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state.

[0016] Optionally, the control module includes: a first judgment unit for judging whether the indoor temperature state is a high temperature state; a first control unit for, if the indoor temperature state is a high temperature state, controlling the evaporation temperature of the warehouse air conditioner to 0°C and controlling the fan speed of the warehouse air conditioner based on the indoor humidity state.

[0017] Optionally, the first control unit includes: a judgment subunit, configured to judge whether the indoor humidity state is a high-humidity state; a control subunit, configured to, if the indoor humidity state is a high-humidity state, control the fan state of the warehouse air conditioner to be in a medium wind speed state; if the indoor humidity state is a low-humidity state, control the fan state of the warehouse air conditioner to be in a maximum wind speed state and turn on the humidification component; if the indoor humidity state is a medium-humidity state, control the fan state of the warehouse air conditioner to be in a maximum wind speed state, wherein the wind speed of the medium wind speed state is less than the wind speed of the maximum wind speed state.

[0018] Optionally, the control module includes: a second judgment unit, configured to judge whether the indoor temperature state is a low-temperature state; a third judgment unit, configured to, if the indoor temperature state is a low-temperature state, judge whether the indoor humidity state is a high-humidity state; a second control unit, configured to, if the indoor humidity state is a high-humidity state, control the evaporation temperature of the warehouse air conditioner to be less than the dew point temperature and control the fan state of the warehouse air conditioner to be in a lowest wind speed state.

[0019] Optionally, the control module further includes: a third control unit, configured to, after the third judgment unit judges whether the indoor humidity state is a high-humidity state, if the indoor humidity state is a low-humidity state, control the refrigeration component of the warehouse air conditioner to be in a standby state, control the fan state of the warehouse air conditioner to be in a maximum wind speed state, and turn on the humidification component; if the indoor humidity state is a medium-humidity state, control the refrigeration component of the warehouse air conditioner to be in a standby state and control the fan state of the warehouse air conditioner to be in a lowest wind speed state.

[0020] Optionally, the control module includes: a fourth judgment unit, configured to, if the indoor temperature state is a medium-temperature state, judge whether the indoor humidity state is a high-humidity state; a fourth control unit, configured to, if the indoor humidity state is a high-humidity state, control the evaporation temperature of the warehouse air conditioner to be lower than the dew point temperature and control the fan state of the warehouse air conditioner to be in a lowest wind speed state.

[0021] Optionally, the device further includes: a fifth control unit, configured to, after the fourth judgment unit judges whether the indoor humidity state is a high-humidity state, if the indoor humidity state is a medium-humidity state, control the lowest evaporation temperature of the warehouse air conditioner to be equal to the dew point temperature and control the fan state of the warehouse air conditioner to be in a lowest wind speed state; if the indoor humidity state is a low-humidity state, control the lowest evaporation temperature of the warehouse air conditioner to be equal to the dew point temperature, control the fan state of the warehouse air conditioner to be in a highest wind speed state, and turn on the humidification component.

[0022] Optionally, the device further includes: a first determination module, configured to determine whether the warehouse air conditioner enters a defrosting mode; a start module, configured to start a hot water spraying device if the warehouse air conditioner enters the defrosting mode, where the hot water spraying device is used to spray hot water on the evaporator of the warehouse air conditioner; a second determination module, configured to determine whether the evaporator enters a dripping state; a shutdown module, configured to shut down the spraying device if the evaporator enters the dripping state; a third determination module, configured to determine whether the dripping state ends; and a termination module, configured to control the warehouse air conditioner to terminate the defrosting mode if the dripping state ends.

[0023] Optionally, the identification module includes: a detection unit, configured to detect the storage item category of the items stored in the warehouse of the warehouse air conditioner; a search unit, configured to search for the optimal storage temperature range and the optimal storage humidity range that match the storage item category; a judgment unit, configured to judge whether the return air temperature is within the optimal storage temperature range and whether the return air humidity is within the optimal storage humidity range; and a determination unit, configured to determine that the indoor temperature state is a medium temperature state if the return air temperature is within the optimal storage temperature range, determine that the indoor temperature state is a high temperature state if the return air temperature is greater than the maximum temperature of the optimal storage temperature range, and determine that the indoor temperature state is a low temperature state if the return air temperature is less than the minimum temperature of the optimal storage temperature range; and determine that the indoor humidity state is a medium humidity state if the return air humidity is within the optimal storage humidity range, determine that the indoor humidity state is a high humidity state if the return air humidity is greater than the maximum humidity of the optimal storage humidity range, and determine that the indoor humidity state is a low humidity state if the return air humidity is less than the minimum humidity of the optimal storage humidity range.

[0024] According to another embodiment of the present invention, an air conditioner is provided, including the temperature and humidity control device of the warehouse air conditioner described in the above embodiment.

[0025] Optionally, the air conditioner further includes a first housing installed outdoors, a second housing installed outdoors and a hot water storage tank, and a third housing installed indoors. The third housing installs an evaporator, an indoor fan, a spraying device, and a humidifying component. The second housing installs a condenser and an outdoor fan. The first housing installs a compressor, a main board, a drive board, an electronic expansion valve, and a solenoid valve. The hot water storage tank faces the air outlet of the outdoor fan, and the water outlet of the hot water storage tank is connected to the spraying device.

[0026] According to another aspect of the embodiments of the present application, a storage medium is further provided. The storage medium includes a stored program, and the program executes the above steps when running.

[0027] According to another aspect of the embodiments of the present application, an electronic device is further provided, including a processor, a communication interface, a memory, and a communication bus. Among them, the processor, the communication interface, and the memory complete mutual communication through the communication bus; where: the memory is used to store a computer program; the processor is used to execute the steps in the above method by running the program stored on the memory.

[0028] According to yet another embodiment of the present invention, a storage medium is further provided. A computer program is stored in the storage medium, where the computer program is configured to execute the steps in any one of the above device embodiments when running.

[0029] Through the embodiments of the present invention, the return air temperature and return air humidity of the warehouse air conditioner are detected; the indoor temperature state and indoor humidity state of the warehouse air conditioner are respectively identified according to the return air temperature and the return air humidity. Among them, the indoor temperature state is used to characterize the matching relationship between the current indoor temperature of the warehouse air conditioner and the optimal storage temperature of the stored items in the warehouse, and the indoor humidity state is used to characterize the matching relationship between the current indoor humidity of the warehouse air conditioner and the optimal storage humidity of the stored items in the warehouse; the evaporation temperature and fan speed of the warehouse air conditioner are controlled according to the indoor temperature state and the indoor humidity state. By detecting the indoor temperature and humidity of the warehouse air conditioner, identifying the indoor temperature and humidity state, and then controlling the evaporation temperature and fan speed of the air conditioner, the humidity in the warehouse can be maximally guaranteed and a reasonable temperature can be maintained under different temperature and humidity states, solving the technical problem of inaccurate control of the indoor temperature and humidity by the warehouse air conditioner in the related art, and improving the accuracy of the air conditioner's control of the indoor temperature and humidity in the warehouse. Description of the Drawings

[0030] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 is a hardware structure block diagram of an air conditioner according to an embodiment of the present invention;

[0032] Figure 2 is a flowchart of a temperature and humidity control method for a warehouse air conditioner according to an embodiment of the present invention;

[0033] Figure 3 Logic diagram for identifying the temperature and humidity state of a granary in an embodiment of the present invention;

[0034] Figure 4 is a control logic diagram for the high-temperature state in an embodiment of the present invention;

[0035] Figure 5 is a control logic diagram for the low-temperature state in an embodiment of the present invention;

[0036] Figure 6 It is the control logic diagram of the temperature state in the embodiment of the present invention;

[0037] Figure 7 It is the system structure diagram of the warehouse air conditioner in the embodiment of the present invention;

[0038] Figure 8 It is the structural block diagram of a temperature and humidity control device for a warehouse air conditioner in the embodiment of the present invention. Detailed implementation manners

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying 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 of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these process, method, product or device.

[0041] Embodiment 1

[0042] The method embodiment provided in Embodiment 1 of the present application can be executed in an air conditioner, a multi-split air conditioner, an air duct machine, an air conditioner controller or a similar device management device. Taking running on an air conditioner as an example, Figure 1 It is the hardware structural block diagram of an air conditioner in the embodiment of the present invention. As Figure 1 shown, the air conditioner may include one or more ( Figure 1 only one is shown in ) processors 102 (the processors 102 may include, but are not limited to, processing devices such as a microprocessor MCU or a field programmable gate array FPGA) and a memory 104 for storing data. Optionally, the above-mentioned air conditioner may further include a transmission device 106 for communication functions and an input / output device 108. Those of ordinary skill in the art can understand,Figure 1 The structure shown is only schematic and does not limit the structure of the above air conditioner. For example, the air conditioner may further include more or fewer components than those shown in Figure 1 or have a different configuration from that shown in Figure 1 .

[0043] The memory 104 can be used to store air conditioner programs. For example, software programs and modules of application software, such as the air conditioner program corresponding to the temperature and humidity control method of a warehouse air conditioner in an embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the air conditioner program stored in the memory 104, that is, implements the above method. The memory 104 may include high-speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memories. In some instances, the memory 104 may further include a memory remotely set relative to the processor 102, and these remote memories can be connected to the air conditioner through a network. Examples of the above network include but are not limited to the Internet, enterprise intranet, local area network, mobile communication network, and combinations thereof.

[0044] The transmission device 106 is used to receive or send data via a network. Specific examples of the above network may include the wireless network provided by the communication provider of the air conditioner. In one instance, the transmission device 106 includes a network adapter (abbreviated as NIC), which can be connected to other network devices through a base station and thus can communicate with the Internet. In one instance, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0045] In this embodiment, a temperature and humidity control method for a warehouse air conditioner is provided. Figure 2 is a flowchart of a temperature and humidity control method for a warehouse air conditioner according to an embodiment of the present invention. As shown in Figure 2 , the process includes the following steps:

[0046] Step S202, detecting the return air temperature and return air humidity of the warehouse air conditioner;

[0047] Optionally, the return air temperature and return air humidity of the warehouse air conditioner in the indoor (inside the granary) are collected through the temperature sensor and humidity sensor of the indoor unit.

[0048] Step S204: Identify the indoor temperature state and indoor humidity state of the warehouse air conditioner according to the return air temperature and the return air humidity respectively. The indoor temperature state is used to characterize the matching relationship between the current indoor temperature of the warehouse air conditioner and the optimal storage temperature of the stored items in the warehouse, and the indoor humidity state is used to characterize the matching relationship between the current indoor humidity of the warehouse air conditioner and the optimal storage humidity of the stored items in the warehouse.

[0049] The warehouse air conditioner of this embodiment can be installed in warehouses such as granaries, food warehouses, and electrical appliance warehouses. Taking a granary as an example for illustration.

[0050] Optionally, the optimal storage temperature and the optimal storage humidity can be set by the user, such as the set temperature and the set humidity, or can be automatically found by the warehouse air conditioner based on the types of stored items in the warehouse. The indoor temperature state includes a high temperature state, a medium temperature state, and a low temperature state, and the indoor humidity state includes a high humidity state, a medium humidity state, and a low humidity state.

[0051] In this embodiment, the optimal storage temperature and the optimal storage humidity of the warehouse air conditioner correspond to the types of stored items in the warehouse, such as rice, corn, wheat, potatoes, etc. For example, the range of the optimal storage temperature of rice is 10°C to 15°C. If the return air temperature is between 10°C and 15°C, it is in the medium temperature state; if it is greater than 15°C, it is in the high temperature state; if it is less than 10°C, it is in the low temperature state. The range of the optimal storage humidity of rice is 60% to 75%. If the return air humidity is between 60% and 75%, it is in the medium humidity state; if it is greater than 75%, it is in the high humidity state; if it is less than 60%, it is in the low humidity state.

[0052] Step S206: Control the evaporation temperature and the fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state.

[0053] The fan speed in this embodiment is the fan speed of the indoor evaporator.

[0054] Through the above steps, the return air temperature and return air humidity of the warehouse air conditioner are detected; the indoor temperature state and indoor humidity state of the warehouse air conditioner are respectively identified according to the return air temperature and the return air humidity, wherein the indoor temperature state is used to characterize the matching relationship between the current indoor temperature of the warehouse air conditioner and the optimal storage temperature of the stored items in the warehouse, and the indoor humidity state is used to characterize the matching relationship between the current indoor humidity of the warehouse air conditioner and the optimal storage humidity of the stored items in the warehouse; the evaporation temperature and fan speed of the warehouse air conditioner are controlled according to the indoor temperature state and the indoor humidity state. By detecting the indoor temperature and humidity of the warehouse air conditioner and identifying the indoor temperature and humidity states, and then controlling the evaporation temperature and fan speed of the air conditioner, it is possible to ensure the humidity in the warehouse to the greatest extent and maintain a reasonable temperature under different temperature and humidity states, solving the technical problem of inaccurate control of the indoor temperature and humidity in the warehouse in the related art, and improving the accuracy of the air conditioner in controlling the indoor temperature and humidity in the warehouse.

[0055] In this embodiment, respectively identifying the indoor temperature state and indoor humidity state of the warehouse air conditioner according to the return air temperature and the return air humidity includes: detecting the storage item category of the stored items in the warehouse of the warehouse air conditioner; searching for the optimal storage temperature range and optimal storage humidity range matching the storage item category; judging whether the return air temperature is within the optimal storage temperature range and whether the return air humidity is within the optimal storage humidity range; if the return air temperature is within the optimal storage temperature range, determining that the indoor temperature state is the medium temperature state, if the return air temperature is greater than the maximum temperature of the optimal storage temperature range, determining that the indoor temperature state is the high temperature state, if the return air temperature is less than the minimum temperature of the optimal storage temperature range, determining that the indoor temperature state is the low temperature state; if the return air humidity is within the optimal storage humidity range, determining that the indoor humidity state is the medium humidity state, if the return air humidity is greater than the maximum humidity of the optimal storage humidity range, determining that the indoor humidity state is the high humidity state, if the return air humidity is less than the minimum humidity of the optimal storage humidity range, determining that the indoor humidity state is the low humidity state.

[0056] Optionally, according to the combination of the indoor temperature state and the indoor humidity state, the unit operation modes of the warehouse air conditioner are divided into nine operation modes: high temperature and high humidity, high temperature and medium humidity, high temperature and low humidity, medium temperature and high humidity, medium temperature and medium humidity, medium temperature and low humidity, low temperature and high humidity, low temperature and medium humidity, and low temperature and low humidity.

[0057] In the refrigeration mode, the user can set according to the types of stored items in the granary. The user inputs the types of stored items in the warehouse or identifies the types of stored items in the warehouse through a camera. By looking up a table, the optimal indoor temperature Tset and indoor humidity Rset that match the types of stored items (most suitable for storing the stored items) are obtained. And the upper limit Tm of the temperature value fluctuation in the high-temperature state, the lower limit Tn of the temperature value fluctuation in the low-temperature state can be set. The optimal storage temperature range is Tset - Tn to Tset + Tm. The upper limit Rm of the humidity value fluctuation in the high-humidity state, the lower limit Rn of the humidity value fluctuation in the low-humidity state can be set. The optimal storage humidity range is Rset - Rn to Rset + Rm.

[0058] Figure 3 The logic diagram for identifying the temperature and humidity states of the granary in the embodiments of the present invention. During refrigeration, the ambient sensing package 7 at the return air outlet and the humidity sensor 8 detect the return air temperature T and the return air humidity R. When T - Tset > Tm, the unit refrigeration mode enters the high-temperature operation mode; when Tset - T > Tn, the unit enters the low-temperature operation mode; if the temperature range is between the two, it enters the medium-temperature mode. At the same time, the humidity state is judged according to the humidity range. Here, the high temperature is taken as an example to judge the humidity. When R - Rset > Rm, the unit is in the high-temperature and high-humidity mode. At the same time, when judging the humidity, when Rset - R > Rm, the unit is in the high-temperature and high-humidity operation mode; when R - Rset > Rn, the unit is in the high-temperature and low-humidity operation mode; if the humidity range is between the two, it is in the high-temperature and medium-humidity mode. In the medium-temperature and low-temperature operation modes, it is the same as the above high-temperature judgment of humidity.

[0059] Adopting the solution of this embodiment, by looking up the optimal storage temperature range and the optimal storage humidity range of the air conditioner according to the types of stored items in the warehouse, and then identifying the indoor temperature state and indoor humidity state based on the real-time detected return air temperature and return air humidity, the most matching temperature and humidity states can be flexibly identified based on the items stored in the warehouse, improving the accuracy of air conditioner temperature and humidity control.

[0060] In an implementation scenario of this embodiment, controlling the evaporation temperature and the fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state includes: judging whether the indoor temperature state is a high-temperature state; if the indoor temperature state is a high-temperature state, controlling the evaporation temperature of the warehouse air conditioner to be 0°C, and controlling the fan speed of the warehouse air conditioner based on the indoor humidity state.

[0061] The evaporation temperature can be controlled to be 0°C through the compressor and the electronic expansion valve. The evaporation temperature of 0°C can prevent the evaporator from icing severely and can quickly reduce the temperature.

[0062] Adopting the solution of this embodiment, in the high-temperature state, controlling the evaporation temperature of the warehouse air conditioner to be 0°C can prevent the evaporator from icing severely and can quickly reduce the temperature.

[0063] In one example, controlling the fan speed of the warehouse air conditioner based on the indoor humidity state includes: determining whether the indoor humidity state is a high-humidity state; if the indoor humidity state is a high-humidity state, controlling the fan state of the warehouse air conditioner to be in the medium-speed state; if the indoor humidity state is a low-humidity state, controlling the fan state of the warehouse air conditioner to be in the maximum-speed state and turning on the humidification component; if the indoor humidity state is a medium-humidity state, controlling the fan state of the warehouse air conditioner to be in the maximum-speed state, where the wind speed in the medium-speed state is less than the wind speed in the maximum-speed state.

[0064] The wind speed in the medium-speed state is less than the wind speed in the maximum-speed state and greater than the wind speed in the minimum-speed state.

[0065] Optionally, the humidification component can be an atomizer, a humidifier, etc.

[0066] In the high-temperature and high-humidity state, the fan air volume is medium, the evaporation temperature is 0°C, to prevent the evaporator from freezing severely, and it can quickly reduce the temperature and humidity. Although using the medium-speed wind speed sacrifices part of the refrigeration capacity, it is more conducive to dehumidification compared to the high wind speed. In the high-temperature and low-humidity state, at this time the humidity is low, the evaporation temperature is controlled at 0°C through the compressor and the electronic expansion valve, the fan air volume is at the maximum speed, and the atomizer is turned on for supplementary humidification. The maximum air volume weakens the dehumidification effect, making the return air pass through the evaporator with the lowest humidity first, but supplementary humidification is carried out after the evaporator, and the maximum air volume enables the granary to cool down quickly. In the high-temperature and medium-humidity state, the evaporation temperature is controlled at 0°C through the compressor and the electronic expansion valve, the fan air volume is at the maximum speed. At this time, the evaporator temperature is 0°C and it cools down quickly. The dehumidification effect of the evaporator is the lowest at the maximum wind speed. While ensuring an appropriate level, it cools down quickly.

[0067] Adopting the solution of this embodiment, in the high-temperature state, the fan speed and the humidification component are controlled respectively based on different humidity states. While quickly cooling down, it can make the humidity state in the warehouse optimal.

[0068] Figure 4It is the control logic diagram in the high-temperature state in the embodiment of the present invention. First, the temperature is judged. When T - Tset > Tm, the unit enters the high-temperature mode, and then the humidity is judged. When R - Rset > Rm, the unit operates in the high-temperature and high-humidity mode. The compressor and the electronic expansion valve are used to control the evaporation temperature to 0°C, and the air volume of the fan is at medium speed. The evaporation temperature is 0°C to prevent the evaporator from freezing severely, and it can quickly reduce the temperature and humidity. Although using medium wind speed sacrifices part of the refrigeration capacity, it is more conducive to dehumidification compared with high wind speed. When Rset - R > Rn, the unit operates in the high-temperature and low-humidity mode. The compressor and the electronic expansion valve are used to control the evaporation temperature to 0°C, the air volume of the fan is at maximum speed, and the atomizer is turned on to supplement humidity. At this time, the humidity is low, and the maximum air volume weakens the dehumidification effect, making the return air pass through the evaporator first with the minimum humidity, but humidification is carried out after the evaporator, and the maximum air volume enables the granary to cool down quickly. When the humidity neither satisfies R - Rset > Rm nor satisfies Rset - R > Rn, the unit enters the high-temperature and medium-humidity operation mode. The compressor and the electronic expansion valve are used to control the evaporation temperature to 0°C, and the air volume of the fan is at maximum speed. At this time, the evaporator temperature is 0°C for rapid cooling, and the dehumidification effect of the evaporator is the lowest at the maximum wind speed. While ensuring an appropriate level, the temperature is quickly reduced.

[0069] In an implementation scenario of this embodiment, controlling the evaporation temperature and the fan wind speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state includes: judging whether the indoor temperature state is a low-temperature state; if the indoor temperature state is a low-temperature state, judging whether the indoor humidity state is a high-humidity state; if the indoor humidity state is a high-humidity state, controlling the evaporation temperature of the warehouse air conditioner to be less than the dew point temperature and controlling the fan state of the warehouse air conditioner to be the lowest wind speed state.

[0070] Optionally, the evaporation temperature can be controlled by the compressor and the electronic expansion valve = dew point temperature - 1°C, and the air volume of the fan is the lowest. When the evaporation temperature is 1°C lower than the dew point temperature, it just meets the dehumidification requirement and makes the refrigeration effect the weakest. At this time, the lowest air volume is used for air supply to ensure the maximum time of the return air in the evaporator, and the dehumidification effect is the strongest.

[0071] Adopting the solution of this embodiment, in the low-temperature and high-humidity state, by controlling the evaporation temperature to be less than the dew point temperature and using the lowest air supply volume, the dehumidification effect is enhanced.

[0072] In one implementation manner, after judging whether the indoor humidity state is a high-humidity state, it further includes: if the indoor humidity state is a low-humidity state, controlling the refrigeration component of the warehouse air conditioner to be in the standby state, controlling the fan state of the warehouse air conditioner to be the maximum wind speed state, and turning on the humidification component; if the indoor humidity state is a medium-humidity state, controlling the refrigeration component of the warehouse air conditioner to be in the standby state, and controlling the fan state of the warehouse air conditioner to be the lowest wind speed state.

[0073] In this embodiment, in the low-temperature and medium-humidity operation mode, the compressor is on standby, the air volume of the fan is the lowest, the evaporator does not refrigerate to let the granary return to temperature, and the humidity is appropriate without regulation. In the low-temperature and low-humidity operation mode, the compressor is on standby, the air volume of the fan is the largest, humidification is carried out, the evaporator does not provide refrigeration, the atomizer is turned on, and the fan sends the moisture into the granary at the maximum speed to quickly replenish the humidity.

[0074] By adopting the solution of this embodiment, when in the low-temperature and medium-humidity state and the low-temperature and low-humidity state, the air volume of the fan is controlled to be the lowest and the largest respectively, so that the best storage humidity can be maintained in the granary at different humidity states under low temperature.

[0075] Figure 5 It is the control logic diagram of the low-temperature state of the embodiment of the present invention. When Tset - T > Tn, the unit enters the low-temperature mode. The humidity judgment here is the same as above and will not be elaborated. The operation mode at low temperature will be directly explained. When in the low-temperature and high-humidity operation mode, the evaporation temperature is controlled to be equal to the dew point temperature - 1°C through the compressor and the electronic expansion valve, and the air volume of the fan is the lowest. When the evaporation temperature is 1°C lower than the dew point temperature, it just meets the dehumidification requirement and at the same time makes the refrigeration effect the weakest. At this time, the lowest air volume is used for air supply to ensure the longest time of the return air in the evaporator and the strongest dehumidification effect. When in the low-temperature and medium-humidity operation mode, the compressor is on standby, the air volume of the fan is the lowest, the evaporator does not refrigerate to let the granary return to temperature, and the humidity is appropriate without regulation. In the low-temperature and low-humidity operation mode, the compressor is on standby, the air volume of the fan is the largest, humidification is carried out, the evaporator does not provide refrigeration, the atomizer is turned on, and the fan sends the moisture into the granary at the maximum speed to quickly replenish the humidity.

[0076] In an implementation scenario of this embodiment, controlling the evaporation temperature and the fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state includes: if the indoor temperature state is the medium-temperature state, determining whether the indoor humidity state is the high-humidity state; if the indoor humidity state is the high-humidity state, controlling the evaporation temperature of the warehouse air conditioner to be lower than the dew point temperature and controlling the fan state of the warehouse air conditioner to be the lowest wind speed state.

[0077] When in the medium-temperature and high-humidity operation mode, the evaporation temperature is controlled to be 1°C lower than the dew point temperature through the compressor and the electronic expansion valve, the air volume of the fan is the lowest, and after the evaporation temperature reaches the dehumidification condition, the refrigeration capacity is ensured to be the weakest and the air volume is the lowest to maximize the dehumidification capacity.

[0078] By adopting the solution of this embodiment, by controlling the evaporation temperature, the refrigeration effect of the air conditioner is weakened and the dehumidification effect is improved, realizing the best humidity state in the granary in the medium-temperature and high-humidity state.

[0079] In one embodiment, after determining whether the indoor humidity state is a high humidity state, the following steps are further included: If the indoor humidity state is a medium humidity state, control the minimum evaporation temperature of the warehouse air conditioner to be equal to the dew point temperature, and control the fan state of the warehouse air conditioner to be the lowest wind speed state; If the indoor humidity state is a low humidity state, control the minimum evaporation temperature of the warehouse air conditioner to be equal to the dew point temperature, control the fan state of the warehouse air conditioner to be the highest wind speed state, and turn on the humidification component.

[0080] When in the medium temperature and medium humidity state, set the minimum evaporation temperature to the dew point temperature at this time. The compressor performs PID (Proportional, Integral, Derivative) control according to the return air temperature and the set optimal value temperature. The fan air volume is at the lowest speed. At this time, the temperature of the granary is regulated between the optimal set values. When the evaporation temperature is greater than the dew point temperature, try to maintain the humidity without decreasing. When in the medium temperature and low humidity operation mode, set the minimum evaporation temperature to the dew point temperature at this time. The compressor performs PID control according to the return air temperature. The fan air volume is the largest, and humidification is performed. While maintaining the temperature, turn on the atomizer for humidification. The largest air volume makes the granary humidify quickly.

[0081] Adopting the solution of this embodiment, when the warehouse air conditioner is in the medium temperature and medium humidity, by controlling the minimum evaporation temperature of the evaporator and the lowest fan wind speed, it is possible to prevent the humidity from decreasing. When in the medium temperature and low humidity state, by controlling the minimum evaporation temperature of the evaporator and humidifying with the maximum wind speed, it is possible to achieve rapid humidification.

[0082] Figure 6 It is the control logic diagram of the medium temperature state in the embodiment of the present invention. When the temperature neither satisfies T - Tset > Tm nor satisfies Tset - T > Tn, the unit enters the medium temperature mode. When in the medium temperature and high humidity operation mode, control the evaporation temperature to be set 1°C lower than the dew point temperature through the compressor and the electronic expansion valve. The fan air volume is the lowest. After the evaporation temperature reaches the dehumidification condition, ensure the weakest refrigeration capacity and the lowest air volume to maximize the dehumidification capacity. When in the medium temperature and medium humidity operation mode, set the minimum evaporation temperature to the dew point temperature at this time. The compressor performs PID control according to the return air temperature and the set optimal value temperature. The fan air volume is at the lowest speed. At this time, the temperature of the granary is regulated between the optimal set values. When the evaporation temperature is greater than the dew point temperature, try to maintain the humidity without decreasing. When in the medium temperature and low humidity operation mode, in the medium temperature and low humidity mode, set the minimum evaporation temperature to the dew point temperature at this time. The compressor performs PID control according to the return air temperature. The fan air volume is the largest, and humidification is performed. While maintaining the temperature, turn on the atomizer for humidification. The largest air volume makes the granary humidify quickly.

[0083] In an implementation manner of this embodiment, it further includes: determining whether the warehouse air conditioner enters the defrosting mode; if the warehouse air conditioner enters the defrosting mode, starting a hot water spraying device, where the hot water spraying device is used to spray hot water on the evaporator of the warehouse air conditioner; determining whether the evaporator enters a dripping state; if the evaporator enters a dripping state, closing the spraying device; determining whether the dripping state ends; if the dripping state ends, controlling the warehouse air conditioner to terminate the defrosting mode.

[0084] The dripping state in this embodiment refers to the state where liquid water (in the direction of gravity) flows out from the air outlet of the evaporator.

[0085] When the defrosting condition is reached, the air conditioner enters the defrosting state. At this time, the four-way valve turns to open for hot gas defrosting, and the spraying device is turned on to spray the hot water in the hot water storage tank on the evaporator to accelerate defrosting. This process can also clean the mud on the evaporator. When the defrosting ends and enters the defrosting dripping state, the four-way valve is closed and the spraying device is closed. Wait until the dripping process ends and the defrosting ends.

[0086] Adopting the solution of this embodiment, by spraying hot water on the evaporator, while defrosting, the effect of dredging the outlet of the evaporator and the like is achieved. The hot water can prevent refreezing and improve the stability of the air conditioner.

[0087] In this embodiment, the air conditioner further includes a first housing installed outdoors, a second housing installed outdoors, a hot water storage tank, and a third housing installed indoors. The third housing installs an evaporator, an indoor fan, a spraying device, and a humidifying component. The second housing installs a condenser and an outdoor fan. The first housing installs a compressor, a main board, a drive board, an electronic expansion valve, and a solenoid valve.

[0088] Optionally, the hot water storage tank faces the air outlet of the outdoor fan. The first water outlet of the hot water storage tank is connected to the spraying device, and the spraying device is used to spray defrosting water on the evaporator in the defrosting mode.

[0089] Optionally, the second water outlet of the hot water storage tank is connected to the humidifying component, and the humidifying component is used to humidify the indoor air.

[0090] Optionally, another water outlet of the hot water storage tank is connected to the humidifying component. The third housing is the evaporator housing, the second housing is the condenser housing, and the first housing is the compressor and component housing.

[0091] Figure 7It is the system structure diagram of the warehouse air conditioner in the embodiment of the present invention, including a compressor and a component housing 1, a condenser housing 2, an evaporator housing 3, a hot water storage tank 4, a spraying device 5, an atomizer 6, an ambient temperature sensor 7, a humidity sensor 8, an evaporator 9, a fan 10, a condenser 11, a condenser temperature sensor 12, a fan 1, an ambient temperature sensor 14, a four-way valve 15, an oil separator 16, a check valve 17, a high-pressure pressure switch 18, an unloading solenoid valve 19, an exhaust temperature sensor 20, a vapor separator 21, a compressor 22, a low-pressure sensor 2, a suction temperature sensor 24, a capillary tube 25, a filter 26, a solenoid valve 27, a suction filter 28, a liquid supply filter 29, an electronic expansion valve 30, a liquid supply filter 31. The air conditioner has a defrosting mode and a refrigeration mode.

[0092] In the refrigeration mode of the air conditioner, the refrigerant is compressed into a high-temperature and high-pressure gas by the compressor 22, passes through the exhaust temperature sensor 20, the high-pressure pressure switch 18, the check valve 17, flows through the oil separator, and enters the condenser through the four-way valve. It is cooled in the condenser 12, and the heat is collected by the hot water storage tank 4, which is used for spraying and defrosting during defrosting. Then the refrigerant enters the evaporator 9 through the liquid supply filter 29, the electronic expansion valve 30, and the liquid supply filter 31 to take away the heat of the return air in the granary. Subsequently, the refrigerant flows back to the four-way valve 15 through the suction filter 28, enters the compressor through the vapor separator 21 to complete a cycle. In the defrosting mode: the refrigerant passes through the four-way valve and turns to flow through the evaporator first, and the loop through which the refrigerant flows is opposite to the refrigeration mode.

[0093] The overall structure of the air conditioner is divided into three parts plus a hot water storage tank. The evaporator housing 3 only installs the evaporator 9, the fan 10, the spraying device 5 and the atomizer 6, without electronic expansion valves and solenoid valve components. Only the condenser and the fan are placed in the condenser housing. Compared with the conventional outdoor unit, the compressor, the main board, the drive board, the electronic expansion valve, the solenoid valve and other components are installed in the component housing 1. In addition, the hot water storage tank 4 collects the heat of the hot air discharged by the condenser 11 in the condenser housing 2 for heat storage. Its basic cycle is the same as that of the air conditioner cycle, but the structure has been improved. Without other electronic components affecting, when cleaning the air conditioner, it can be directly washed with water. And during defrosting, not only hot compress defrosting is available, but also the water in the hot water storage tank can be sprayed on the evaporator to achieve the functions of double defrosting and cleaning, which is beneficial in the dusty environment of the granary.

[0094] Through the split design, all the components in the evaporator housing are migrated to the third housing where the compressor is located, isolating dust, facilitating defrosting and cleaning of the evaporator. A hot water storage tank is added to collect the heat of the condenser to save energy. During defrosting of the air conditioner, the water in the tank can be sprayed on the evaporator for defrosting, accelerating defrosting and cleaning the evaporator on the basis of hot gas defrosting.

[0095] An intelligent operation mode logic for a granary air conditioner to ensure the humidity of the granary is proposed. Users can set the high, medium, and low ranges of temperature and humidity according to different types of grains. Control the relationship between the evaporation temperature and the dew point temperature, as well as the wind speed of the evaporation fan. In different temperature and humidity range modes, the humidity of the granary is maximally guaranteed and the temperature is maintained. Under this control logic, different control modes are proposed for the compressor to regulate measures such as the evaporation temperature, the wind speed of the evaporation fan, and self-humidification, so that the temperature and humidity can quickly reach a reasonable range.

[0096] The control logic of the granary air conditioner in this embodiment focuses on granary moisture preservation. The air conditioner dehumidifies by controlling the evaporation temperature at the dew point temperature of the granary environment, and the dehumidification effect is closely related to the wind speed. Therefore, three gears of wind speed, high, medium, and low, are set for the evaporation fan. The lowest gear of wind speed is most conducive to defrosting when the evaporation temperature is lower than the dew point temperature: when the wind speed is low, the wind stays in the evaporator for a relatively long time, which will enhance the dehumidification effect. When the wind speed is higher, the dehumidification effect will be greatly reduced at the same evaporation temperature, and the high gear of wind speed can accelerate the cooling, and the medium gear of wind speed can be used to maintain the air conditions in the granary under appropriate conditions.

[0097] The solution of this embodiment realizes a split-type granary air conditioner. In terms of the external hardware of the air conditioner: the evaporator and the variable-frequency fan are separately independent in a housing. There are only heat exchangers and fans in the housing without other components, which is convenient for dust cleaning and defrosting. And a hot water storage tank is added outside the condenser housing to store the heat of the condensation wind in the tank for defrosting and dust removal, and the water in the tank can also be used for humidification in a low-humidity environment. In terms of the control system: an intelligent operation mode is set for the granary air conditioner. Users can set the optimal temperature and humidity fluctuation ranges by themselves, so as to divide the internal environment temperature and humidity of the granary into multiple states. Users can set the temperature and humidity standards according to different types of stored grains in the granary, and the unit can automatically adjust the operation mode in different environments.

[0098] Due to the relatively large amount of dust in the granary environment, the evaporator of the granary air conditioner faces the dual problems of defrosting and dust removal. And because of the preservation characteristics of crops, the granary has extremely high requirements for the temperature and humidity of the air. Neither the temperature nor the humidity in the granary can be too high or too low. Traditional air conditioners often cannot humidify themselves, and the control methods of traditional air conditioners cannot meet the storage requirements in the special environment of the granary in terms of temperature and humidity, and cannot quickly respond according to the internal environment of the granary, which will lead to a series of problems such as grain loss.

[0099] This embodiment proposes a split - type granary air conditioner. All the components in the evaporator housing are relocated to the compressor and component housing to facilitate the cleaning of the dust on the evaporator. Moreover, a hot water storage tank is added to store the condensation heat. The hot water in the hot water storage tank is used for direct defrosting when frosting occurs, for cleaning the evaporator when there is a lot of dust, and can be atomized for humidification when the granary environment enters a low - humidity state. Regarding the proposed intelligent control mode for the granary, users can set the optimal temperature and humidity ranges by themselves. The optimal temperature range is medium temperature, and the optimal humidity range is medium humidity. If it exceeds this value, it is high, and if it is lower than this value, it is low. In this way, the granary environment is divided into nine situations: high - temperature and high - humidity, high - temperature and medium - humidity, high - temperature and low - humidity, medium - temperature and high - humidity, medium - temperature and medium - humidity, medium - temperature and low - humidity, low - temperature and high - humidity, low - temperature and medium - humidity, and low - temperature and low - humidity. Users can set the optimal values of the granary temperature and humidity by themselves, as well as the range of high, medium, and low temperatures and humidities. This control mode can calculate the dew - point temperature based on the return - air temperature and humidity, and directly affect the temperature and humidity by regulating parameters such as the evaporation temperature of the air conditioner and the speed of the evaporation fan. When the humidity in the granary is too low, it can supplement moisture through the self - contained humidification device, maintaining the moisture in the granary within an appropriate medium - humidity range and quickly bringing the granary environment to the optimal state.

[0100] Through the description of the above - mentioned embodiments, those skilled in the art can clearly understand that the method according to the above - mentioned embodiments can be implemented by means of software plus a necessary general - purpose hardware platform. Of course, it can also be implemented by hardware, but in many cases, the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence, or the part that makes a contribution to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc) and includes several instructions for causing a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0101] Embodiment 2

[0102] In this embodiment, a temperature - humidity control device and an air conditioner for a warehouse are also provided. This device is used to implement the above - mentioned embodiments and preferred implementation methods, and those that have been described will not be repeated. As used hereinafter, the term "module" can be a combination of software and hardware that can achieve a predefined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware, can also be contemplated.

[0103] Figure 8 is a structural block diagram of a temperature - humidity control device for a warehouse air conditioner according to an embodiment of the present invention. As Figure 8 shown, it includes:

[0104] A detection module 80, which is used to detect the return - air temperature and return - air humidity of the warehouse air conditioner;

[0105] An identification module 82 is configured to identify the indoor temperature state and indoor humidity state of the warehouse air conditioner based on the return air temperature and the return air humidity respectively, wherein the indoor temperature state is used to characterize the matching relationship between the current indoor temperature of the warehouse air conditioner and the optimal storage temperature of the stored items in the warehouse, and the indoor humidity state is used to characterize the matching relationship between the current indoor humidity of the warehouse air conditioner and the optimal storage humidity of the stored items in the warehouse;

[0106] A control module 84 is configured to control the evaporation temperature and the fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state.

[0107] Optionally, the control module includes: a first judgment unit, configured to judge whether the indoor temperature state is a high temperature state; a first control unit, configured to, if the indoor temperature state is a high temperature state, control the evaporation temperature of the warehouse air conditioner to be 0°C and control the fan speed of the warehouse air conditioner based on the indoor humidity state.

[0108] Optionally, the first control unit includes: a judgment sub-unit, configured to judge whether the indoor humidity state is a high humidity state; a control sub-unit, configured to, if the indoor humidity state is a high humidity state, control the fan state of the warehouse air conditioner to be in the medium wind speed state; if the indoor humidity state is a low humidity state, control the fan state of the warehouse air conditioner to be in the maximum wind speed state and turn on the humidification component; if the indoor humidity state is a medium humidity state, control the fan state of the warehouse air conditioner to be in the maximum wind speed state, wherein the wind speed of the medium wind speed state is less than the wind speed of the maximum wind speed state.

[0109] Optionally, the control module includes: a second judgment unit, configured to judge whether the indoor temperature state is a low temperature state; a third judgment unit, configured to, if the indoor temperature state is a low temperature state, judge whether the indoor humidity state is a high humidity state; a second control unit, configured to, if the indoor humidity state is a high humidity state, control the evaporation temperature of the warehouse air conditioner to be less than the dew point temperature and control the fan state of the warehouse air conditioner to be in the lowest wind speed state.

[0110] Optionally, the control module further includes: a third control unit, configured to, after the third judgment unit judges whether the indoor humidity state is a high humidity state, if the indoor humidity state is a low humidity state, control the refrigeration component of the warehouse air conditioner to be in the standby state, control the fan state of the warehouse air conditioner to be in the maximum wind speed state, and turn on the humidification component; if the indoor humidity state is a medium humidity state, control the refrigeration component of the warehouse air conditioner to be in the standby state and control the fan state of the warehouse air conditioner to be in the lowest wind speed state.

[0111] Optionally, the control module includes: a fourth determination unit configured to determine whether the indoor humidity state is a high humidity state if the indoor temperature state is a medium temperature state; a fourth control unit configured to control the evaporation temperature of the warehouse air conditioner to be lower than the dew point temperature and control the fan state of the warehouse air conditioner to be the lowest wind speed state if the indoor humidity state is a high humidity state.

[0112] Optionally, the device further includes: a fifth control unit configured to, after the fourth determination unit determines whether the indoor humidity state is a high humidity state, control the lowest evaporation temperature of the warehouse air conditioner to be equal to the dew point temperature and control the fan state of the warehouse air conditioner to be the lowest wind speed state if the indoor humidity state is a medium humidity state; control the lowest evaporation temperature of the warehouse air conditioner to be equal to the dew point temperature, control the fan state of the warehouse air conditioner to be the highest wind speed state, and turn on the humidification component if the indoor humidity state is a low humidity state.

[0113] Optionally, the device further includes: a first determination module configured to determine whether the warehouse air conditioner enters a defrost mode; a start module configured to start a hot water spraying device if the warehouse air conditioner enters the defrost mode, where the hot water spraying device is configured to spray hot water on the evaporator of the warehouse air conditioner; a second determination module configured to determine whether the evaporator enters a dripping state; a shutdown module configured to shut down the spraying device if the evaporator enters the dripping state; a third determination module configured to determine whether the dripping state ends; and a termination module configured to control the warehouse air conditioner to terminate the defrost mode if the dripping state ends.

[0114] Optionally, the recognition module includes: a detection unit configured to detect the storage item category of the items stored in the warehouse of the warehouse air conditioner; a search unit configured to search for the optimal storage temperature range and the optimal storage humidity range that match the storage item category; a determination unit configured to determine whether the return air temperature is within the optimal storage temperature range and determine whether the return air humidity is within the optimal storage humidity range; a determination unit configured to determine that the indoor temperature state is a medium temperature state if the return air temperature is within the optimal storage temperature range, determine that the indoor temperature state is a high temperature state if the return air temperature is greater than the maximum temperature of the optimal storage temperature range, and determine that the indoor temperature state is a low temperature state if the return air temperature is less than the minimum temperature of the optimal storage temperature range; determine that the indoor humidity state is a medium humidity state if the return air humidity is within the optimal storage humidity range, determine that the indoor humidity state is a high humidity state if the return air humidity is greater than the maximum humidity of the optimal storage humidity range, and determine that the indoor humidity state is a low humidity state if the return air humidity is less than the minimum humidity of the optimal storage humidity range.

[0115] This embodiment also provides an air conditioner, including an outdoor unit and a plurality of indoor units. Among them, any one of the indoor units includes the temperature and humidity control device of the warehouse air conditioner described in the above embodiment.

[0116] It should be noted that the above-mentioned various modules can be implemented by software or hardware. For the latter, it can be achieved in the following ways, but not limited to this: the above-mentioned modules are all located in the same processor; or, the above-mentioned various modules are respectively located in different processors in any combination form.

[0117] Embodiment 3

[0118] The embodiment of the present invention also provides a storage medium, in which a computer program is stored. Among them, the computer program is set to execute the steps in any one of the above method embodiments when running.

[0119] Optionally, in this embodiment, the above storage medium can be set to store a computer program for execution:

[0120] S1, detecting the return air temperature and return air humidity of the warehouse air conditioner;

[0121] S2, respectively identifying the indoor temperature state and indoor humidity state of the warehouse air conditioner according to the return air temperature and the return air humidity, where the indoor temperature state is used to characterize the matching relationship between the current indoor temperature of the warehouse air conditioner and the optimal storage temperature of the stored items in the warehouse, and the indoor humidity state is used to characterize the matching relationship between the current indoor humidity of the warehouse air conditioner and the optimal storage humidity of the stored items in the warehouse;

[0122] S3, controlling the evaporation temperature and fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state.

[0123] Optionally, in this embodiment, the above storage medium may include, but is not limited to: USB flash drive, read-only memory (ROM for short), random access memory (RAM for short), mobile hard disk, magnetic disk or optical disc and other various media that can store computer programs.

[0124] The embodiment of the present invention also provides an electronic device, including a memory and a processor. A computer program is stored in the memory, and the processor is set to run the computer program to execute the steps in any one of the above method embodiments.

[0125] Optionally, the above electronic device may further include a transmission device and an input / output device. Among them, the transmission device is connected to the above processor, and the input / output device is connected to the above processor.

[0126] Optionally, in this embodiment, the above-mentioned processor may be configured to execute the following steps through a computer program:

[0127] S1, detect the return air temperature and return air humidity of the warehouse air conditioner;

[0128] S2, respectively identify the indoor temperature state and indoor humidity state of the warehouse air conditioner according to the return air temperature and the return air humidity, wherein the indoor temperature state is used to characterize the matching relationship between the current indoor temperature of the warehouse air conditioner and the optimal storage temperature of the stored items in the warehouse, and the indoor humidity state is used to characterize the matching relationship between the current indoor humidity of the warehouse air conditioner and the optimal storage humidity of the stored items in the warehouse;

[0129] S3, control the evaporation temperature and the fan air volume of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state.

[0130] Optionally, specific examples in this embodiment may refer to the examples described in the above-mentioned embodiments and optional implementation manners, and will not be elaborated herein.

[0131] The serial numbers of the above-mentioned embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments.

[0132] In the above-mentioned embodiments of the present application, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0133] In the several embodiments provided by the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of units or modules can be in electrical or other forms.

[0134] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0135] In addition, in each embodiment of the present application, each functional unit can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0136] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a controller, or a network device, etc.) to execute all or part of the steps of the methods in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), mobile hard disks, magnetic disks, or optical discs.

[0137] The above is only the preferred embodiment of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A temperature and humidity control method for a warehouse air conditioner, characterized in that, Including: Detecting the return air temperature and return air humidity of the warehouse air conditioner; Identifying the indoor temperature state and indoor humidity state of the warehouse air conditioner according to the return air temperature and the return air humidity respectively, wherein the indoor temperature state is used to characterize the matching relationship between the current indoor temperature of the warehouse air conditioner and the optimal storage temperature of the stored items in the warehouse, and the indoor humidity state is used to characterize the matching relationship between the current indoor humidity of the warehouse air conditioner and the optimal storage humidity of the stored items in the warehouse; Controlling the evaporation temperature and fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state.

2. The method according to claim 1, characterized in that, Controlling the evaporation temperature and fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state includes: Judging whether the indoor temperature state is a high temperature state; If the indoor temperature state is a high temperature state, controlling the evaporation temperature of the warehouse air conditioner to be 0°C and controlling the fan speed of the warehouse air conditioner based on the indoor humidity state.

3. The method according to claim 2, characterized in that, Controlling the fan speed of the warehouse air conditioner based on the indoor humidity state includes: Judging whether the indoor humidity state is a high humidity state; If the indoor humidity state is a high humidity state, controlling the fan state of the warehouse air conditioner to be in the medium speed state; if the indoor humidity state is a low humidity state, controlling the fan state of the warehouse air conditioner to be in the maximum speed state and turning on the humidifying component; if the indoor humidity state is a medium humidity state, controlling the fan state of the warehouse air conditioner to be in the maximum speed state, wherein the wind speed in the medium speed state is less than the wind speed in the maximum speed state.

4. The method according to claim 1, wherein Controlling the evaporation temperature and fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state includes: Judging whether the indoor temperature state is a low temperature state; If the indoor temperature state is a low temperature state, judging whether the indoor humidity state is a high humidity state; If the indoor humidity state is a high humidity state, controlling the evaporation temperature of the warehouse air conditioner to be less than the dew point temperature and controlling the fan state of the warehouse air conditioner to be in the lowest speed state.

5. The method according to claim 4, wherein After judging whether the indoor humidity state is a high humidity state, the method further includes: If the indoor humidity state is a low humidity state, controlling the refrigeration component of the warehouse air conditioner to be in the standby state, controlling the fan state of the warehouse air conditioner to be in the maximum speed state, and turning on the humidifying component; if the indoor humidity state is a medium humidity state, controlling the refrigeration component of the warehouse air conditioner to be in the standby state and controlling the fan state of the warehouse air conditioner to be in the lowest speed state.

6. The method according to claim 1, characterized in that, Controlling the evaporation temperature and fan speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state includes: If the indoor temperature state is a medium temperature state, judging whether the indoor humidity state is a high humidity state; If the indoor humidity state is a high humidity state, controlling the evaporation temperature of the warehouse air conditioner to be lower than the dew point temperature and controlling the fan state of the warehouse air conditioner to be in the lowest speed state.

7. The method according to claim 6, wherein After judging whether the indoor humidity state is a high humidity state, the method further includes: If the indoor humidity state is medium humidity state, control the minimum evaporation temperature of the warehouse air conditioner to be equal to the dew point temperature, and control the fan state of the warehouse air conditioner to be the lowest wind speed state; if the indoor humidity state is low humidity state, control the minimum evaporation temperature of the warehouse air conditioner to be equal to the dew point temperature, and control the fan state of the warehouse air conditioner to be the highest wind speed state, and turn on the humidification component.

8. The method according to claim 1, characterized in that, The method further includes: Judge whether the warehouse air conditioner enters the defrosting mode; If the warehouse air conditioner enters the defrosting mode, start the hot water spraying device, wherein the hot water spraying device is used to spray hot water on the evaporator of the warehouse air conditioner; Judge whether the evaporator enters the dripping state; If the evaporator enters the dripping state, turn off the spraying device; Judge whether the dripping state ends; If the dripping state ends, control the warehouse air conditioner to terminate the defrosting mode.

9. The method according to claim 1, characterized in that Identifying the indoor temperature state and indoor humidity state of the warehouse air conditioner according to the return air temperature and the return air humidity respectively includes: Detect the storage item category of the stored items in the warehouse of the warehouse air conditioner; Search for the best storage temperature range and the best storage humidity range matching the storage item category; Judge whether the return air temperature is within the best storage temperature range and whether the return air humidity is within the best storage humidity range; If the return air temperature is within the best storage temperature range, determine that the indoor temperature state is medium temperature state; if the return air temperature is greater than the maximum temperature of the best storage temperature range, determine that the indoor temperature state is high temperature state; if the return air temperature is less than the minimum temperature of the best storage temperature range, determine that the indoor temperature state is low temperature state; if the return air humidity is within the best storage humidity range, determine that the indoor humidity state is medium humidity state; if the return air humidity is greater than the maximum humidity of the best storage humidity range, determine that the indoor humidity state is high humidity state; if the return air humidity is less than the minimum humidity of the best storage humidity range, determine that the indoor humidity state is low humidity state.

10. A temperature and humidity control device for a warehouse air conditioner, characterized in that, It includes: A detection module for detecting the return air temperature and return air humidity of the warehouse air conditioner; An identification module for respectively identifying the indoor temperature state and indoor humidity state of the warehouse air conditioner according to the return air temperature and the return air humidity, wherein the indoor temperature state is used to characterize the matching relationship between the current indoor temperature of the warehouse air conditioner and the best storage temperature of the stored items in the warehouse, and the indoor humidity state is used to characterize the matching relationship between the current indoor humidity of the warehouse air conditioner and the best storage humidity of the stored items in the warehouse; A control module for controlling the evaporation temperature and fan air speed of the warehouse air conditioner according to the indoor temperature state and the indoor humidity state.

11. An air conditioner, characterized in that, It includes the temperature and humidity control device of the warehouse air conditioner described in claim 10.

12. The air conditioner according to claim 11, characterized in that, The air conditioner further includes a first housing installed outdoors, a second housing installed outdoors, a hot water storage tank, and a third housing installed indoors. The third housing is provided with an evaporator, an indoor blower, a spraying device, and a humidifying component. The second housing is provided with a condenser and an outdoor blower. The first housing is provided with a compressor, a main board, a drive board, an electronic expansion valve, and a solenoid valve. The hot water storage tank faces the air outlet of the outdoor blower, and the water outlet of the hot water storage tank is connected to the spraying device.

13. A storage medium, characterized in that, A computer program is stored in a storage medium, wherein the computer program is configured to execute the steps of the temperature and humidity control method of the warehouse air conditioner according to any one of claims 1 to 9 when running.

14. An electronic device, comprising a processor, a communication interface, a memory, and a communication bus, wherein, A processor, a communication interface, and a memory complete mutual communication through a communication bus; wherein: The memory is used for storing a computer program; The processor is configured to execute the steps of the temperature and humidity control method of the warehouse air conditioner according to any one of claims 1 to 9 by running the program stored on the memory.

Images