Control method and device of grain bin cooling equipment, electronic equipment and storage medium

Abstract

The application provides a control method and device of a granary cooling equipment, electronic equipment and a storage medium, comprising: determining a first temperature value outside a granary and a second temperature value inside the granary; determining a temperature pre-cooling duration according to the first temperature value and the second temperature value, and controlling the cooling equipment to operate at a first operating power for the temperature pre-cooling duration when introducing grains into the granary; operating the cooling equipment at a second operating power after controlling the cooling equipment to operate at the first operating power for the temperature pre-cooling duration; the first operating power is greater than the second operating power; operating the cooling equipment at a third operating power when the temperature value of the surface of the grains decreases to a preset first threshold value; the third operating power is greater than the second operating power; operating the cooling equipment at a fourth operating power when the surface temperature of the grains decreases to a preset second threshold value; the first threshold value is greater than the second threshold value. Through the embodiment of the application, the problem of condensation of the surface of the grains due to rapid cooling can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain temperature management, and in particular to a control method of a grain cooling device, a control device of a grain cooling device, an electronic device and a computer readable storage medium. BACKGROUND

[0002] In the process of grain storage, maintaining appropriate temperature and humidity is crucial to prevent grain from mildewing, insect infestation and maintaining its quality.

[0003] At present, the commonly used temperature regulation means for grain storage mainly includes natural ventilation, mechanical ventilation and traditional air conditioning system.

[0004] Among them, natural ventilation is greatly affected by season and weather, and the regulation effect is unstable; mechanical ventilation can improve the environment in the warehouse to a certain extent, but the control precision of temperature and humidity is limited.

[0005] And although the traditional air conditioning system can realize relatively accurate temperature and humidity control, it has high energy consumption and large operation cost, and in the application of large space such as grain storage, there are problems such as uneven distribution of cold quantity and low energy consumption efficiency.

[0006] In particular, the existing air conditioning system often directly cools the interior of the grain storehouse, ignoring the fact that when the temperature difference between the interior and exterior of the grain storehouse is large, rapid cooling may cause condensation on the surface of the grain, which not only affects the quality of the grain, but also may promote the growth of microorganisms and increase the risk of storage.

[0007] Therefore, it is particularly important to develop a grain air conditioning pre-cooling method that can efficiently cool and avoid condensation problems. SUMMARY

[0008] In view of the above problems, a control method of a grain cooling device, a control device of a grain cooling device, an electronic device and a computer readable storage medium are provided to overcome the above problems or at least partially solve the above problems, comprising:

[0009] A control method of a grain cooling device, the method comprising:

[0010] determining a first temperature value outside the grain storehouse and a second temperature value inside the grain storehouse;

[0011] determining a temperature pre-cooling duration according to the first temperature value and the second temperature value, and controlling the cooling device to operate at a first operating power for the temperature pre-cooling duration when grain is introduced into the grain storehouse;

[0012] After controlling the cooling device to operate at the first operating power for the temperature pre-cooling time, the cooling device is operated at the second operating power; the first operating power is greater than the second operating power;

[0013] When the temperature on the surface of the grain drops to a preset first threshold, the cooling device operates at a third operating power; the third operating power is greater than the second operating power.

[0014] When the surface temperature of the grain drops to a preset second threshold, the cooling device is operated at a fourth operating power; the first threshold is greater than the second threshold.

[0015] Optionally, determining the pre-cooling time based on the first temperature value and the second temperature value includes:

[0016] Calculate the difference between the first temperature value and the second temperature value;

[0017] The temperature precooling time is determined based on the difference and the first operating power.

[0018] Optionally, determining the temperature precooling duration based on the difference and the first operating power includes:

[0019] Determine the size of the grain silo, and the preset space-to-cooling-capacity ratio coefficient;

[0020] The temperature precooling time is calculated based on the size of the grain silo, the space ratio coefficient, the first operating power, and the difference.

[0021] Optionally, the second operating power is half of the first operating power.

[0022] Optionally, the third operating power is the maximum operating power of the cooling device.

[0023] Optionally, when controlling the cooling device to operate at a first operating power for the temperature pre-cooling duration, the method further includes:

[0024] When condensation is detected on the surface of the grain, the cooling device is operated at the second operating power.

[0025] Optionally, when the cooling device is operated at a fourth operating power, the method further includes:

[0026] The temperature of the grain surface is detected, and the cooling device is controlled to maintain the temperature of the grain surface at the target temperature.

[0027] Optionally, the cooling device includes an air conditioner and a fan.

[0028] This invention also provides a control device for a grain silo cooling system, the device comprising:

[0029] The determining module is used to determine a first temperature value outside the grain silo and a second temperature value inside the grain silo;

[0030] The first control module is used to determine the temperature precooling time based on the first temperature value and the second temperature value, and to control the cooling equipment to operate at the first operating power for the temperature precooling time when grain is introduced into the grain silo.

[0031] The second control module is used to control the cooling device to operate at the first operating power for the temperature pre-cooling time and then operate the cooling device at the second operating power; the first operating power is greater than the second operating power;

[0032] The third control module is used to operate the cooling device at a third operating power when the temperature value on the surface of the grain drops to a preset first threshold; the third operating power is greater than the second operating power.

[0033] The fourth control module is used to operate the cooling device at a fourth operating power when the surface temperature of the grain drops to a preset second threshold; the first threshold is greater than the second threshold.

[0034] Optionally, the determining module is used to calculate the difference between the first temperature value and the second temperature value; and to determine the temperature precooling time based on the difference and the first operating power.

[0035] Optionally, the determining module is used to determine the size of the grain silo and a preset space-to-cooling-capacity ratio coefficient; and to calculate the temperature precooling time based on the size of the grain silo, the space-to-cooling ratio coefficient, the first operating power, and the difference.

[0036] Optionally, the second operating power is half of the first operating power.

[0037] Optionally, the third operating power is the maximum operating power of the cooling device.

[0038] Optionally, the first control module is further configured to operate the cooling device at the second operating power when condensation is detected on the surface of the grain while controlling the cooling device to operate at the first operating power for the temperature pre-cooling time.

[0039] Optionally, the first control module is further configured to detect the temperature of the grain surface when the cooling device is running at a fourth operating power, and to maintain the temperature of the grain surface at a target temperature by controlling the cooling device.

[0040] Optionally, the cooling device includes an air conditioner and a fan.

[0041] This invention also provides an electronic device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, it implements the control method for the grain silo cooling device described above.

[0042] This invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the control method for the grain silo cooling device described above.

[0043] The embodiments of the present invention have the following advantages:

[0044] In this embodiment of the invention, a first temperature value outside the grain silo and a second temperature value inside the grain silo are determined; a pre-cooling time is determined based on the first and second temperature values, and when grain is introduced into the grain silo, the cooling equipment is controlled to operate at a first operating power for the pre-cooling time; after controlling the cooling equipment to operate at the first operating power for the pre-cooling time, the cooling equipment is operated at a second operating power; the first operating power is greater than the second operating power; when the temperature value of the grain surface decreases to a preset first threshold, the cooling equipment is operated at a third operating power; the third operating power is greater than the second operating power; when the surface temperature of the grain decreases to a preset second threshold, the cooling equipment is operated at a fourth operating power; the first threshold is greater than the second threshold. Through this embodiment of the invention, the grain silo can be pre-cooled before the grain is put into the silo; then, a gradient cooling process is performed. Precise temperature control can effectively avoid the problem of condensation on the grain surface due to rapid cooling, thereby ensuring the quality of the grain stored in the grain silo. Attached Figure Description

[0045] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a flowchart illustrating the steps of a control method for a grain storage cooling device according to an embodiment of the present invention.

[0047] Figure 2This is a flowchart of the steps of a control method for a grain storage cooling device according to another embodiment of the present invention;

[0048] Figure 3 This is a flowchart illustrating the steps of a control method for a grain storage cooling device according to another embodiment of the present invention.

[0049] Figure 4 This is a schematic diagram of the control device for a grain storage cooling equipment according to an embodiment of the present invention. Detailed Implementation

[0050] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0051] To achieve efficient cooling while preventing condensation on the grain in the granary, this invention provides a control method for a grain granary cooling device. This method pre-cools the granary when the grain is placed inside, followed by gradient cooling. Precise temperature control effectively prevents condensation on the grain surface due to rapid cooling, thus ensuring the quality of the grain stored in the granary.

[0052] For specific details, please refer to Figure 1 The diagram illustrates a flowchart of the control method for a grain storage cooling device according to an embodiment of the present invention.

[0053] like Figure 1 As shown, the control method for the grain silo cooling equipment may include the following steps:

[0054] Step 101: Determine the first temperature value outside the grain warehouse and the second temperature value inside the grain warehouse.

[0055] In this embodiment of the invention, temperature sensors and humidity sensors can be installed inside and outside the grain warehouse respectively to monitor environmental parameters inside and outside the grain warehouse in real time. Specifically, a first temperature value collected from the outside of the grain warehouse can be obtained from the temperature sensor; in addition, a second temperature value collected from the inside of the grain warehouse can be obtained from the temperature sensor.

[0056] Step 102: Determine the temperature pre-cooling time based on the first temperature value and the second temperature value, and control the cooling equipment to operate at the first operating power for the temperature pre-cooling time when introducing grain into the grain silo.

[0057] After determining the first and second temperature values, the pre-cooling time can be determined first, that is, the pre-cooling time when the grain is introduced into the grain warehouse.

[0058] Specifically, after determining the first temperature value and the second temperature value, the pre-cooling time can be calculated based on the first temperature value and the second temperature value.

[0059] Then, timing can be started when grain is introduced into the grain silo, and the cooling equipment can be controlled to operate at the first operating power and continue to pre-cool for a period of time to quickly reduce the surface temperature of the grain to be close to the temperature outside the grain silo.

[0060] In one embodiment of the present invention, the cooling device includes an air conditioner and a fan.

[0061] In some feasible embodiments, the first operating power may include a first air conditioning power and a first fan power for the air conditioner; when grain is started to be introduced into the grain silo, the air conditioner may be controlled to operate at the first air conditioning power for a pre-cooling time; in addition, the fan may be controlled to operate at the first fan power for a pre-cooling time, and the embodiments of the present invention do not limit this.

[0062] Step 103: After controlling the cooling equipment to operate at the first operating power for the pre-cooling time, the cooling equipment is operated at the second operating power; the first operating power is greater than the second operating power.

[0063] After controlling the cooling equipment to operate at the first operating power for the pre-cooling time, in order to avoid continuing to cool the inside of the grain silo at a higher power, which would cause condensation on the surface of the grain inside the silo, the cooling equipment can be controlled to operate at a second operating power lower than the first operating power.

[0064] In practical applications, the actual values ​​of the first operating power and the second operating power can be set according to the actual situation, and the embodiments of the present invention do not impose any restrictions on this.

[0065] For example, the second operating power may include the second air conditioning power and the second fan power; when controlling the cooling equipment to operate at the second operating power, the air conditioner may be controlled to operate at the second air conditioning power; in addition, the fan may also be controlled to operate at the second fan power, and the embodiments of the present invention do not limit this.

[0066] Step 104: When the temperature value on the surface of the grain drops to the preset first threshold, the cooling equipment is operated at the third operating power; the third operating power is greater than the second operating power.

[0067] In this embodiment of the invention, after the cooling device is operated at the second operating power for a period of time, the temperature of the grain surface can be obtained; specifically, the temperature of the grain surface can be obtained from a temperature sensor.

[0068] Then, it can be detected whether the temperature of the currently acquired grain surface is lower than a preset first threshold; for example, the first threshold can be 20 degrees Celsius.

[0069] When the temperature of the currently acquired grain surface is detected to be no lower than the preset first threshold, the cooling equipment can continue to operate at the second operating power.

[0070] Conversely, if the temperature of the currently acquired grain surface is detected to be lower than the preset first threshold, it indicates that the temperature of the grain in the grain silo is already low and condensation is unlikely to occur. In this case, the cooling equipment can be controlled to operate at a third operating power greater than the second operating power to quickly cool the grain silo.

[0071] For example, the third operating power may include the third air conditioning power and the third fan power; when controlling the cooling equipment to operate at the third operating power, the air conditioner may be controlled to operate at the third air conditioning power; in addition, the fan may also be controlled to operate at the third fan power, and the embodiments of the present invention do not limit this.

[0072] Step 105: When the surface temperature of the grain drops to the preset second threshold, the cooling equipment is operated at the fourth operating power; the first threshold is greater than the second threshold.

[0073] When the cooling device is running at the third operating power, the temperature of the grain surface can continue to be monitored, and it can be determined whether the currently acquired grain surface temperature is lower than a second threshold; wherein, the second threshold can be lower than the first threshold. For example, the second threshold can be 15 degrees Celsius.

[0074] When the temperature of the currently acquired grain surface is detected to be no lower than the preset second threshold, the cooling equipment can continue to operate at the third operating power.

[0075] Conversely, if the temperature of the currently acquired grain surface is detected to be lower than the preset second threshold, it indicates that the temperature of the grain in the grain silo has reached the normal storage temperature; at this time, the cooling equipment can be controlled to operate at the fourth operating power to maintain the temperature of the grain silo.

[0076] For example, the fourth operating power may include the fourth air conditioning power and the fourth fan power; when controlling the cooling equipment to operate at the fourth operating power, the air conditioner may be controlled to operate at the fourth air conditioning power; in addition, the fan may also be controlled to operate at the fourth fan power, and the embodiments of the present invention do not limit this.

[0077] In this embodiment of the invention, a first temperature value outside the grain silo and a second temperature value inside the grain silo are determined; a pre-cooling time is determined based on the first and second temperature values, and when grain is introduced into the grain silo, the cooling equipment is controlled to operate at a first operating power for the pre-cooling time; after controlling the cooling equipment to operate at the first operating power for the pre-cooling time, the cooling equipment is operated at a second operating power; the first operating power is greater than the second operating power; when the temperature value of the grain surface decreases to a preset first threshold, the cooling equipment is operated at a third operating power; the third operating power is greater than the second operating power; when the surface temperature of the grain decreases to a preset second threshold, the cooling equipment is operated at a fourth operating power; the first threshold is greater than the second threshold. Through this embodiment of the invention, the grain silo can be pre-cooled before the grain is put into the silo; then, a gradient cooling process is performed. Precise temperature control can effectively avoid the problem of condensation on the grain surface due to rapid cooling, thereby ensuring the quality of the grain stored in the grain silo.

[0078] Reference Figure 2 The diagram illustrates a flowchart of another control method for a grain silo cooling device according to an embodiment of the present invention, which may include the following steps:

[0079] Step 201: Determine the first temperature value outside the grain warehouse and the second temperature value inside the grain warehouse.

[0080] In practical applications, temperature and humidity sensors can be installed inside and outside the grain silo to monitor environmental parameters inside and outside the grain silo in real time. Specifically, the first temperature value collected from the outside of the grain silo can be obtained from the temperature sensor, and the second temperature value collected from the inside of the grain silo can be obtained from the temperature sensor.

[0081] Step 202: Calculate the difference between the first temperature value and the second temperature value.

[0082] After determining the first and second temperature values, the pre-cooling time can be determined first, that is, the pre-cooling time when the grain is introduced into the grain warehouse.

[0083] Specifically, after determining the first temperature value and the second temperature value, the difference between the first temperature value and the second temperature value can be calculated first.

[0084] Step 203: Determine the temperature precooling time based on the difference and the first operating power.

[0085] In practical applications, the temperature precooling time can be calculated based on this difference and the first operating power.

[0086] Step 204: When introducing grain into the grain silo, control the cooling equipment to operate at the first operating power for the pre-cooling time.

[0087] Then, timing can be started when grain is introduced into the grain silo, and the cooling equipment can be controlled to operate at the first operating power and continue to pre-cool for a period of time to quickly reduce the surface temperature of the grain to be close to the temperature outside the grain silo.

[0088] In some feasible embodiments, the first operating power may include a first air conditioning power and a first fan power for the air conditioner; when grain is started to be introduced into the grain silo, the air conditioner may be controlled to operate at the first air conditioning power for a pre-cooling time; in addition, the fan may be controlled to operate at the first fan power for a pre-cooling time, and the embodiments of the present invention do not limit this.

[0089] Step 205: After controlling the cooling equipment to operate at the first operating power for the pre-cooling time, operate the cooling equipment at the second operating power.

[0090] After controlling the cooling equipment to operate at the first operating power for the pre-cooling time, in order to avoid continuing to cool the inside of the grain silo at a higher power, which would cause condensation on the surface of the grain inside the silo, the cooling equipment can be controlled to operate at a second operating power lower than the first operating power.

[0091] In practical applications, the actual values ​​of the first operating power and the second operating power can be set according to the actual situation, and the embodiments of the present invention do not impose any restrictions on this.

[0092] For example, the second operating power may include the second air conditioning power and the second fan power; when controlling the cooling equipment to operate at the second operating power, the air conditioner may be controlled to operate at the second air conditioning power; in addition, the fan may also be controlled to operate at the second fan power, and the embodiments of the present invention do not limit this.

[0093] In one embodiment of the present invention, the second operating power is half of the first operating power.

[0094] In some feasible embodiments, the second operating power can be half of the first operating power, and the first operating power can be the maximum power of the cooling device. This embodiment of the invention does not limit this.

[0095] In one embodiment of the present invention, when controlling the cooling device to operate at a first operating power for a pre-cooling time, the method further includes:

[0096] When condensation is detected on the grain surface, the cooling equipment is operated at the second operating power.

[0097] In some feasible embodiments, while controlling the cooling equipment to operate at a first operating power for a pre-cooling time, it is also possible to detect whether condensation has begun to form on the surface of the grain poured into the grain silo; for example, after recognizing the image of the grain inside the grain silo acquired by the image acquisition device, it is possible to analyze whether condensation has begun to form on the surface of the grain poured into the grain silo.

[0098] If no condensation is detected on the surface of the grain poured into the grain silo, the cooling equipment can continue to be controlled at the first operating power and pre-cooling temperature for the specified duration.

[0099] Conversely, if condensation is detected on the surface of the grain poured into the grain silo, the cooling equipment can be operated at the second operating power.

[0100] Step 206: When the temperature value on the surface of the grain drops to the preset first threshold, the cooling equipment is operated at the third operating power.

[0101] In this embodiment of the invention, after the cooling device is operated at the second operating power for a period of time, the temperature of the grain surface can be obtained; specifically, the temperature of the grain surface can be obtained from a temperature sensor.

[0102] Then, it can be detected whether the temperature of the currently acquired grain surface is lower than a preset first threshold.

[0103] When the temperature of the currently acquired grain surface is detected to be no lower than the preset first threshold, the cooling equipment can continue to operate at the second operating power.

[0104] Conversely, if the temperature of the currently acquired grain surface is detected to be lower than the preset first threshold, it indicates that the temperature of the grain in the grain silo is already low and condensation is unlikely to occur. In this case, the cooling equipment can be controlled to operate at a third operating power greater than the second operating power to quickly cool the grain silo.

[0105] For example, the third operating power may include the third air conditioning power and the third fan power; when controlling the cooling equipment to operate at the third operating power, the air conditioner may be controlled to operate at the third air conditioning power; in addition, the fan may also be controlled to operate at the third fan power, and the embodiments of the present invention do not limit this.

[0106] In one embodiment of the present invention, the third operating power is the maximum operating power of the cooling device.

[0107] In some feasible embodiments, the third operating power can be the maximum operating power of the cooling equipment to quickly reduce the temperature of the grain silo to the storage temperature.

[0108] Step 207: When the surface temperature of the grain drops to the preset second threshold, the cooling equipment is operated at the fourth operating power.

[0109] When the cooling equipment is running at the third operating power, the temperature of the grain surface can continue to be detected, and it can be detected whether the currently obtained temperature of the grain surface is lower than the second threshold; wherein, the second threshold can be lower than the first threshold.

[0110] When the temperature of the currently acquired grain surface is detected to be no lower than the preset second threshold, the cooling equipment can continue to operate at the third operating power.

[0111] Conversely, if the temperature of the currently acquired grain surface is detected to be lower than the preset second threshold, it indicates that the temperature of the grain in the grain silo has reached the normal storage temperature; at this time, the cooling equipment can be controlled to operate at the fourth operating power to maintain the temperature of the grain silo.

[0112] For example, the fourth operating power may include the fourth air conditioning power and the fourth fan power; when controlling the cooling equipment to operate at the fourth operating power, the air conditioner may be controlled to operate at the fourth air conditioning power; in addition, the fan may also be controlled to operate at the fourth fan power, and the embodiments of the present invention do not limit this.

[0113] In one embodiment of the present invention, when the cooling device is operated at a fourth operating power, the method further includes:

[0114] The temperature of the grain surface is detected, and the cooling equipment is controlled to maintain the grain surface temperature at the target temperature.

[0115] In some feasible embodiments, the surface temperature of the grain inside the grain silo can continue to be monitored while the cooling equipment is running at a fourth operating power.

[0116] Based on the current surface temperature of the grain, the cooling equipment can be controlled to maintain the surface temperature of the grain in the grain warehouse at a target temperature; this target temperature can refer to the storage temperature of the grain, for example, 15 degrees Celsius.

[0117] In this embodiment of the invention, a first temperature value outside the grain silo and a second temperature value inside the grain silo are determined; the difference between the first and second temperature values ​​is calculated; based on the difference and a first operating power, a pre-cooling time is determined; when grain is introduced into the grain silo, the cooling equipment is controlled to operate at the first operating power for the pre-cooling time; after the cooling equipment operates at the first operating power for the pre-cooling time, it operates at the second operating power; when the temperature of the grain surface decreases to a preset first threshold, the cooling equipment operates at a third operating power; when the surface temperature of the grain decreases to a preset second threshold, the cooling equipment operates at a fourth operating power. Through this embodiment of the invention, the grain silo can be pre-cooled before the grain is put into storage, and then a gradient cooling process can be performed. Precise temperature control can effectively avoid the problem of condensation on the grain surface due to rapid cooling, thereby ensuring the quality of the grain stored in the grain silo.

[0118] Reference Figure 3 The diagram illustrates a flowchart of a control method for a grain storage cooling device according to another embodiment of the present invention, which may include the following steps:

[0119] Step 301: Determine the first temperature value outside the grain warehouse and the second temperature value inside the grain warehouse.

[0120] In practical applications, temperature and humidity sensors can be installed inside and outside the grain silo to monitor environmental parameters inside and outside the grain silo in real time. Specifically, the first temperature value collected from the outside of the grain silo can be obtained from the temperature sensor, and the second temperature value collected from the inside of the grain silo can be obtained from the temperature sensor.

[0121] Step 302: Calculate the difference between the first temperature value and the second temperature value.

[0122] After determining the first and second temperature values, the pre-cooling time can be determined first, that is, the pre-cooling time when the grain is introduced into the grain warehouse.

[0123] Specifically, after determining the first temperature value and the second temperature value, the difference between the first temperature value and the second temperature value can be calculated first.

[0124] Step 303: Determine the size of the grain warehouse and the preset space-to-cooling-capacity ratio coefficient.

[0125] In some feasible embodiments, the size of the grain storage space in the grain silo, as well as a preset space-to-cooling-capacity ratio coefficient, can also be determined. This space-to-cooling-capacity ratio coefficient can be set according to the actual situation, and its unit can be [time / (volume*temperature)].

[0126] Step 304: Calculate the temperature precooling time based on the size of the grain warehouse, the space ratio coefficient, the first operating power, and the difference.

[0127] After obtaining the size of the grain silo, its spatial proportion coefficient, initial operating power, and the difference, the temperature precooling time can be calculated based on these parameters.

[0128] Step 305: When introducing grain into the grain silo, control the cooling equipment to operate at the first operating power for the pre-cooling time.

[0129] After determining the pre-cooling time, timing can begin when grain is poured into the grain silo, and the cooling equipment can be controlled to operate at the first operating power and continue for the pre-cooling time to quickly reduce the surface temperature of the grain to be close to the temperature outside the grain silo.

[0130] In some feasible embodiments, the first operating power may include a first air conditioning power and a first fan power for the air conditioner; when grain is started to be introduced into the grain silo, the air conditioner may be controlled to operate at the first air conditioning power for a pre-cooling time; in addition, the fan may be controlled to operate at the first fan power for a pre-cooling time, and the embodiments of the present invention do not limit this.

[0131] Step 306: After controlling the cooling equipment to operate at the first operating power for the pre-cooling time, operate the cooling equipment at the second operating power.

[0132] After controlling the cooling equipment to operate at the first operating power for the pre-cooling time, in order to avoid continuing to cool the inside of the grain silo at a higher power, which would cause condensation on the surface of the grain inside the silo, the cooling equipment can be controlled to operate at a second operating power lower than the first operating power.

[0133] In practical applications, the actual values ​​of the first operating power and the second operating power can be set according to the actual situation, and the embodiments of the present invention do not impose any restrictions on this.

[0134] For example, the second operating power may include the second air conditioning power and the second fan power; when controlling the cooling equipment to operate at the second operating power, the air conditioner may be controlled to operate at the second air conditioning power; in addition, the fan may also be controlled to operate at the second fan power, and the embodiments of the present invention do not limit this.

[0135] In some feasible embodiments, while controlling the cooling equipment to operate at a first operating power for a pre-cooling time, it is also possible to detect whether condensation has begun to form on the surface of the grain poured into the grain silo; for example, after recognizing the image of the grain inside the grain silo acquired by the image acquisition device, it is possible to analyze whether condensation has begun to form on the surface of the grain poured into the grain silo.

[0136] If no condensation is detected on the surface of the grain poured into the grain silo, the cooling equipment can continue to be controlled at the first operating power and pre-cooling temperature for the specified duration.

[0137] Conversely, if condensation is detected on the surface of the grain poured into the grain silo, the cooling equipment can be operated at the second operating power.

[0138] Step 307: When the temperature value on the surface of the grain drops to the preset first threshold, the cooling equipment is operated at the third operating power.

[0139] In this embodiment of the invention, after the cooling device is operated at the second operating power for a period of time, the temperature of the grain surface can be obtained; specifically, the temperature of the grain surface can be obtained from a temperature sensor.

[0140] Then, it can be detected whether the temperature of the currently acquired grain surface is lower than a preset first threshold.

[0141] When the temperature of the currently acquired grain surface is detected to be no lower than the preset first threshold, the cooling equipment can continue to operate at the second operating power.

[0142] Conversely, if the temperature of the currently acquired grain surface is detected to be lower than the preset first threshold, it indicates that the temperature of the grain in the grain silo is already low and condensation is unlikely to occur. In this case, the cooling equipment can be controlled to operate at a third operating power greater than the second operating power to quickly cool the grain silo.

[0143] For example, the third operating power may include the third air conditioning power and the third fan power; when controlling the cooling equipment to operate at the third operating power, the air conditioner may be controlled to operate at the third air conditioning power; in addition, the fan may also be controlled to operate at the third fan power, and the embodiments of the present invention do not limit this.

[0144] Step 308: When the surface temperature of the grain drops to the preset second threshold, the cooling equipment is operated at the fourth operating power.

[0145] When the cooling equipment is running at the third operating power, the temperature of the grain surface can continue to be detected, and it can be detected whether the currently obtained temperature of the grain surface is lower than the second threshold; wherein, the second threshold can be lower than the first threshold.

[0146] When the temperature of the currently acquired grain surface is detected to be no lower than the preset second threshold, the cooling equipment can continue to operate at the third operating power.

[0147] Conversely, if the temperature of the currently acquired grain surface is detected to be lower than the preset second threshold, it indicates that the temperature of the grain in the grain silo has reached the normal storage temperature; at this time, the cooling equipment can be controlled to operate at the fourth operating power to maintain the temperature of the grain silo.

[0148] For example, the fourth operating power may include the fourth air conditioning power and the fourth fan power; when controlling the cooling equipment to operate at the fourth operating power, the air conditioner may be controlled to operate at the fourth air conditioning power; in addition, the fan may also be controlled to operate at the fourth fan power, and the embodiments of the present invention do not limit this.

[0149] In some feasible embodiments, the surface temperature of the grain inside the grain silo can continue to be monitored while the cooling equipment is running at a fourth operating power.

[0150] Based on the current surface temperature of the grain, the cooling equipment can be controlled to maintain the surface temperature of the grain in the grain warehouse at a target temperature; this target temperature can refer to the storage temperature of the grain.

[0151] For example, after the grain is stored, the cooling equipment in the grain warehouse is turned on. After a time T, the temperature of the grain can be seen to have dropped to a level close to the initial temperature t1 in the grain warehouse. At this time, the grain can be cooled down again.

[0152] If we continue cooling at this power level, condensation may occur on the grain surface due to rapid cooling. Therefore, we need to perform initial cooling. Here is an example:

[0153] Currently, the grain temperature has dropped to the initial temperature of 25°C inside the storage facility. To further reduce the grain surface temperature to 15°C, we will take the following steps:

[0154] 1. Initial Cooling: First, reduce the frequency of the grain silo cooling equipment to 50% of its original power (P / 2). At this power, gradually lower the grain surface temperature to 20°C. This gentle cooling process helps reduce the temperature gradient and lowers the risk of condensation on the grain surface.

[0155] 2. Rapid Cooling: Once the grain surface temperature drops to 20℃, turn the cooling equipment to its maximum power to achieve maximum cooling capacity. Since the temperature difference between the grain storage room and the air outlet is not significant at this point, the likelihood of condensation on the grain surface is low. At maximum cooling capacity, rapidly reduce the grain surface temperature to 15℃.

[0156] Stable maintenance: Once the target temperature of 15℃ is reached, the power of the cooling equipment is reduced (e.g., the frequency of the air conditioner is reduced and the speed of the fan is reduced), and the grain silo enters a low-power operation mode to ensure the stability of the temperature inside the silo and avoid the impact of temperature fluctuations on the quality of the grain.

[0157] In this embodiment of the invention, a first temperature value outside the grain silo and a second temperature value inside the grain silo are determined; the difference between the first and second temperature values ​​is calculated; the size of the grain silo and a preset space-to-cooling-capacity ratio coefficient are determined; based on the grain silo size, the space-to-cooling-capacity ratio coefficient, a first operating power, and the temperature difference, a pre-cooling time is calculated; when grain is introduced into the grain silo, the cooling equipment is controlled to operate at the first operating power for the pre-cooling time; after the cooling equipment operates at the first operating power for the pre-cooling time, it operates at the second operating power; when the temperature of the grain surface decreases to a preset first threshold, the cooling equipment operates at a third operating power; when the grain surface temperature decreases to a preset second threshold, the cooling equipment operates at a fourth operating power. Through this embodiment of the invention, the grain silo can be pre-cooled before the grain is placed inside, followed by gradient cooling. Precise temperature control effectively avoids condensation on the grain surface due to rapid cooling, thereby ensuring the quality of the grain stored in the grain silo.

[0158] It should be noted that, for the sake of simplicity, the method embodiments are all described as a series of actions. However, those skilled in the art should understand that the embodiments of the present invention are not limited to the described order of actions, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0159] Reference Figure 4 The diagram shows a structural schematic of a control device for a grain storage cooling system according to an embodiment of the present invention, which may include the following modules:

[0160] The determination module 501 is used to determine a first temperature value outside the grain silo and a second temperature value inside the grain silo.

[0161] The first control module 502 is used to determine the temperature precooling time based on the first temperature value and the second temperature value, and to control the cooling equipment to operate at the first operating power for the temperature precooling time when introducing grain into the grain silo.

[0162] The second control module 503 is used to control the cooling equipment to operate at a pre-cooling time at a first operating power and then operate the cooling equipment at a second operating power; the first operating power is greater than the second operating power.

[0163] The third control module 504 is used to operate the cooling device at a third operating power when the temperature value on the grain surface drops to a preset first threshold; the third operating power is greater than the second operating power.

[0164] The fourth control module 505 is used to operate the cooling device at a fourth operating power when the surface temperature of the grain drops to a preset second threshold; the first threshold is greater than the second threshold.

[0165] In an optional embodiment of the present invention, the determining module 501 is used to calculate the difference between the first temperature value and the second temperature value; and to determine the temperature precooling time based on the difference and the first operating power.

[0166] In an optional embodiment of the present invention, the determining module 501 is used to determine the size of the grain silo and a preset space-to-cooling-capacity ratio coefficient; and to calculate the temperature pre-cooling time based on the size of the grain silo, the space-to-cooling ratio coefficient, the first operating power, and the difference.

[0167] In one optional embodiment of the present invention, the second operating power is half of the first operating power.

[0168] In an optional embodiment of the present invention, the third operating power is the maximum operating power of the cooling device.

[0169] In an optional embodiment of the present invention, the first control module 502 is further configured to operate the cooling device at a second operating power when condensation is detected on the surface of the grain while controlling the cooling device to operate at a first operating power for a pre-cooling time at a first operating power.

[0170] In an optional embodiment of the present invention, the fourth control module 505 is further configured to detect the temperature of the grain surface when the cooling device is running at the fourth operating power, and to maintain the temperature of the grain surface at the target temperature by controlling the cooling device.

[0171] In one optional embodiment of the present invention, the cooling device includes an air conditioner and a fan.

[0172] In this embodiment of the invention, a first temperature value outside the grain silo and a second temperature value inside the grain silo are determined; a pre-cooling time is determined based on the first and second temperature values, and when grain is introduced into the grain silo, the cooling equipment is controlled to operate at a first operating power for the pre-cooling time; after controlling the cooling equipment to operate at the first operating power for the pre-cooling time, the cooling equipment is operated at a second operating power; the first operating power is greater than the second operating power; when the temperature value of the grain surface decreases to a preset first threshold, the cooling equipment is operated at a third operating power; the third operating power is greater than the second operating power; when the surface temperature of the grain decreases to a preset second threshold, the cooling equipment is operated at a fourth operating power; the first threshold is greater than the second threshold. Through this embodiment of the invention, the grain silo can be pre-cooled before the grain is put into the silo; then, a gradient cooling process is performed. Precise temperature control can effectively avoid the problem of condensation on the grain surface due to rapid cooling, thereby ensuring the quality of the grain stored in the grain silo.

[0173] This invention also provides an electronic device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, it implements the control method of the grain silo cooling device described above.

[0174] This invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the control method for the grain silo cooling device described above.

[0175] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the description of the method embodiment.

[0176] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0177] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, apparatus, or computer program products. Therefore, embodiments of the present invention can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of the present invention can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0178] Embodiments of the present invention are described with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0179] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1The function specified in one or more boxes.

[0180] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0181] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present invention.

[0182] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0183] The control method, control device, electronic device, and computer-readable storage medium for a grain silo cooling device have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A control method for a grain silo cooling device, characterized in that, The method includes: Determine a first temperature value outside the grain warehouse and a second temperature value inside the grain warehouse; Based on the first temperature value and the second temperature value, the temperature precooling time is determined, and when grain is introduced into the grain silo, the cooling equipment is controlled to operate at the first operating power for the temperature precooling time. After controlling the cooling device to operate at the first operating power for the temperature pre-cooling time, the cooling device is operated at the second operating power; the first operating power is greater than the second operating power; When the temperature on the surface of the grain drops to a preset first threshold, the cooling device operates at a third operating power; the third operating power is greater than the second operating power. When the surface temperature of the grain drops to a preset second threshold, the cooling device operates at a fourth operating power; the first threshold is greater than the second threshold. The step of determining the pre-cooling time based on the first temperature value and the second temperature value includes: Calculate the difference between the first temperature value and the second temperature value; The temperature precooling time is determined based on the difference and the first operating power.

2. The method according to claim 1, characterized in that, The step of determining the temperature precooling duration based on the difference and the first operating power includes: Determine the size of the grain silo, and the preset space-to-cooling-capacity ratio coefficient; The temperature precooling time is calculated based on the size of the grain silo, the space ratio coefficient, the first operating power, and the difference.

3. The method according to claim 1, characterized in that, The second operating power is one-half of the first operating power.

4. The method according to claim 1, characterized in that, The third operating power is the maximum operating power of the cooling device.

5. The method according to claim 1, characterized in that, When controlling the cooling device to operate at a first operating power for the temperature pre-cooling duration, the method further includes: When condensation is detected on the surface of the grain, the cooling device is operated at the second operating power.

6. The method according to claim 1, characterized in that, When the cooling device is operated at a fourth operating power, the method further includes: The temperature of the grain surface is detected, and the cooling device is controlled to maintain the temperature of the grain surface at the target temperature.

7. The method according to claim 1, characterized in that, The cooling equipment includes air conditioners and fans.

8. A control device for a grain silo cooling system, characterized in that, The device includes: The determining module is used to determine a first temperature value outside the grain silo and a second temperature value inside the grain silo; The first control module is used to determine the temperature precooling time based on the first temperature value and the second temperature value, and to control the cooling equipment to operate at the first operating power for the temperature precooling time when grain is introduced into the grain silo. The second control module is used to control the cooling device to operate at the first operating power for the temperature pre-cooling time and then operate the cooling device at the second operating power; the first operating power is greater than the second operating power; The third control module is used to operate the cooling device at a third operating power when the temperature value on the surface of the grain drops to a preset first threshold; the third operating power is greater than the second operating power. The fourth control module is used to operate the cooling device at a fourth operating power when the surface temperature of the grain drops to a preset second threshold; the first threshold is greater than the second threshold. The determining module is used to calculate the difference between the first temperature value and the second temperature value; and to determine the temperature precooling time based on the difference and the first operating power.

9. An electronic device, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, it implements the control method of the grain silo cooling device as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, which, when executed by a processor, implements the control method for the grain silo cooling device as described in any one of claims 1 to 7.

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