CN115462316B - Control method of cultivation environmental control system and cultivation environmental control system - Google Patents
Control method of cultivation environmental control system and cultivation environmental control system Download PDFInfo
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- CN115462316B CN115462316B CN202211020647.1A CN202211020647A CN115462316B CN 115462316 B CN115462316 B CN 115462316B CN 202211020647 A CN202211020647 A CN 202211020647A CN 115462316 B CN115462316 B CN 115462316B
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- 230000007613 environmental effect Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 27
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 164
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 82
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 62
- 238000009423 ventilation Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000004378 air conditioning Methods 0.000 claims description 17
- 230000001276 controlling effect Effects 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims 1
- 238000009395 breeding Methods 0.000 abstract description 10
- 230000001488 breeding effect Effects 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 244000144972 livestock Species 0.000 abstract description 7
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 230000003938 response to stress Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ventilation (AREA)
- Greenhouses (AREA)
Abstract
The invention discloses a control method of a cultivation environmental control system and the cultivation environmental control system, comprising the steps of judging whether the indoor carbon dioxide concentration is greater than the sum of a carbon dioxide concentration adjustment threshold value and a concentration deviation value; if so, when the indoor temperature meets a first temperature preset condition corresponding to the current operation mode, an exhaust regulation command is sent out to increase the exhaust amount of the cultivation house and reduce the carbon dioxide concentration. According to the invention, through the judging condition of the coupling of the temperature and the carbon dioxide concentration, the exhaust air quantity adjustment in the refrigerating, heating and ventilation modes is realized, and the temperature fluctuation in the cultivation house is reduced as much as possible while the concentration of the carbon dioxide in the cultivation house is reduced; and the opening of the small window is adjusted to control the flow speed of the airflow at the small window, so that the stress reaction of livestock in the breeding house is avoided.
Description
Technical Field
The invention relates to the technical field of cultivation temperature control, in particular to a control method of a cultivation environmental control system and the cultivation environmental control system.
Background
With the large-scale development of the breeding industry, the breeding density of livestock is greatly improved, so that the air quality requirement in a breeding house is also improved. At present, the control of the carbon dioxide concentration in the cultivation house is mainly controlled by adjusting the ventilation quantity, when fresh wind is increased, the temperature in the cultivation house is greatly influenced by outdoor temperature, and in order to realize an optimal carbon dioxide concentration control scheme, an optimal ventilation control method is needed to be considered, so that the carbon dioxide concentration is reduced as much as possible under the premise of ensuring the temperature in the house, and the load is reduced.
Disclosure of Invention
The invention provides a control method of a cultivation environmental control system and the cultivation environmental control system, and aims to solve the technical problem that the temperature fluctuation of a cultivation house is large due to the control of the carbon dioxide concentration of the cultivation house in the prior art.
The technical scheme adopted by the invention is as follows:
the invention provides a control method of a cultivation environmental control system, which comprises the following steps:
the environmental control system operates;
judging whether the indoor carbon dioxide concentration is larger than the sum of the carbon dioxide concentration adjusting threshold value and the first concentration deviation value; if so, when the indoor temperature meets a first temperature preset condition corresponding to the current operation mode, an exhaust regulation command is sent out to increase the exhaust quantity and reduce the indoor carbon dioxide concentration.
In the above step, the method for sending the exhaust air adjusting command to increase the exhaust air amount of the cultivation house specifically comprises the following steps: and (3) increasing the operation power of the exhaust fan unit, opening a small window of the cultivation house, and controlling the opening of the small window according to the airflow velocity at the small window.
Specifically, after the exhaust air adjusting command is executed to reduce the carbon dioxide concentration, judging whether the indoor carbon dioxide concentration is smaller than or equal to the difference between the carbon dioxide concentration adjusting threshold value and the second concentration deviation value; if yes, reducing the power of the exhaust fan unit to enable the exhaust air quantity of the cultivation house to be equal to the air supply quantity of an air conditioning system of the cultivation house, and closing the small window; if not, continuing to execute the exhaust air adjusting command.
Specifically, after the exhaust air regulation command is executed to reduce the carbon dioxide concentration, judging whether the indoor temperature meets a second temperature preset condition corresponding to the current operation mode, if so, reducing the power of an exhaust fan unit to enable the exhaust air quantity of the cultivation house to be equal to the air quantity of an air conditioning system of the cultivation house, and closing a small window; if not, continuing to execute the exhaust air adjusting command.
The indoor temperature meets the preset conditions corresponding to the heating mode: the indoor temperature is greater than or equal to a difference between the indoor target temperature and the first control temperature difference.
The indoor temperature meets the preset conditions corresponding to the ventilation mode: the indoor temperature is greater than or equal to a difference between the indoor target temperature and the first control temperature difference, and the indoor temperature is less than or equal to a sum of the indoor target temperature and the first control temperature difference.
The indoor temperature meets the preset conditions corresponding to the refrigeration mode: the indoor temperature is greater than or equal to a sum of the indoor target temperature and the first control temperature difference.
Specifically, whether the indoor temperature meets the second temperature preset condition corresponding to the current operation mode is judged specifically as follows: judging whether the indoor temperature is greater than or equal to the sum of the indoor target temperature and the second control temperature difference value when the refrigerating mode is operated; judging whether the indoor temperature is less than or equal to the difference between the indoor target temperature and the second control temperature difference value when the heating mode is operated; and judging whether the indoor temperature is smaller than or equal to the difference between the indoor target temperature and the second control temperature difference value or whether the indoor temperature is larger than or equal to the sum of the indoor target temperature and the second control temperature difference value when the ventilation mode is operated.
Further, opening the small window of the cultivation house and controlling the opening of the small window according to the airflow velocity at the small window specifically comprises: when the airflow velocity of the small window is larger than the sum of the airflow velocity regulating threshold value of the small window and the flow velocity control deviation value, increasing the opening of the small window; and when the small window airflow speed is smaller than the difference between the small window wind speed adjustment threshold value and the flow speed control deviation value, reducing the opening of the small window.
The invention also provides a cultivation environmental control system, and the control method of the cultivation environmental control system is used for reducing the concentration of carbon dioxide in a cultivation house.
Compared with the prior art, the invention realizes the exhaust air quantity adjustment in the refrigeration, heating and ventilation modes by the judging condition of the coupling of the temperature and the carbon dioxide concentration, reduces the carbon dioxide concentration in the cultivation house and simultaneously reduces the temperature fluctuation in the cultivation house as much as possible; and the opening of the small window is adjusted to control the flow speed of the airflow at the small window, so that the stress reaction of livestock in the breeding house is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The principles and structures of the present invention are described in detail below with reference to the drawings and the examples.
The breeding density of livestock is greatly improved, so that the air quality requirement in the breeding house is also greatly improved. At present, the control of the carbon dioxide concentration in the cultivation house is mainly controlled by adjusting the ventilation quantity, specifically, the concentration of the carbon dioxide in the cultivation house is reduced by increasing fresh air, and the fresh air system is influenced by outdoor temperature in the process of increasing the fresh air, so that the temperature in the cultivation house, namely the indoor temperature fluctuation, is large, and the stress response of livestock is easily caused. In this regard, the invention provides a control method of a cultivation environmental control system, which judges whether to execute an exhaust regulation command according to the indoor carbon dioxide concentration, and reduces the concentration of carbon dioxide in a cultivation house by opening a small window and increasing the power of an exhaust fan unit, so as to avoid the stress reaction of livestock caused by directly blowing fresh air.
Breed environmental control system specifically corresponds to breed the house setting, breeds environmental control system specifically and includes: the air conditioning system (also can be called as fresh air conditioning system), the small window baffle that sets up in small window position regulation ventilation area, set up the exhaust fan unit of breeding the side of house to and detect the indoor (namely breed the indoor carbon dioxide detection element of carbon dioxide concentration, detect and breed the indoor temperature or be the temperature sensor of indoor temperature.
As shown in fig. 1, the invention provides a control method of a cultivation environmental control system, which comprises the following steps:
when the environmental control system operates, and when the exhaust air quantity of the environmental control system is equal to the air supply quantity (the air supply quantity can be slightly deviated), the next judging step is executed, and the explanation is that the exhaust air quantity is the exhaust air quantity of an exhaust fan unit, and the air supply quantity is the air supply quantity of an air supply unit of the fresh air conditioner;
judging whether the concentration of the carbon dioxide in the room (namely in the cultivation house) is larger than the sum of the carbon dioxide concentration regulating threshold value and the first concentration deviation value; if yes, when the indoor temperature meets a first temperature preset condition corresponding to the current operation mode, an exhaust regulation command is sent out to increase the exhaust amount of the cultivation house and reduce the carbon dioxide concentration; if not, the process is terminated or the judgment step is returned.
When the indoor carbon dioxide concentration is overlarge, whether the indoor temperature meets the conditions corresponding to the current operation mode or not is determined, so that the indoor temperature can be maintained in a normal temperature range while the exhaust air is increased, and the indoor carbon dioxide concentration can be reduced.
The exhaust air measuring tool for sending the exhaust air adjusting command to increase the cultivation house specifically comprises: increasing the operation power of the exhaust fan unit, opening a small window of the cultivation house, controlling the opening of the small window according to the airflow velocity at the small window, and forming negative pressure in the cultivation house after the operation power of the exhaust fan unit is increased and the small window is opened, so that fresh air is introduced at the small window, the energy consumption for introducing the fresh air from the small window is far less than that for directly introducing the fresh air from a fresh air conditioning system, and the stress reaction of livestock can not be caused.
In the first embodiment, after the exhaust air conditioning command is executed to reduce the carbon dioxide concentration, it is determined whether the indoor carbon dioxide concentration is less than or equal to the difference between the carbon dioxide concentration adjustment threshold value and the second concentration deviation value; if yes, reducing the running power of the exhaust fan unit to enable the exhaust air quantity of the cultivation house to be equal to the air supply quantity of an air conditioning system of the cultivation house, and closing the small window; if not, continuing to execute the exhaust air adjusting command.
In a second embodiment, after the exhaust regulation command is executed to reduce the carbon dioxide concentration, judging whether the indoor temperature meets a second temperature preset condition corresponding to the current operation mode, if so, reducing the operation power of the exhaust fan unit to enable the exhaust amount of the cultivation house to be equal to the air supply amount of an air conditioning system of the cultivation house, and closing the small window; if not, continuing to execute the exhaust air adjusting command.
In a third embodiment, after the exhaust air conditioning command is executed to reduce the carbon dioxide concentration, determining whether the indoor carbon dioxide concentration is less than or equal to a difference between a carbon dioxide concentration adjustment threshold and a second concentration deviation value; or judging whether the indoor temperature meets a second temperature preset condition corresponding to the current operation mode, if so, reducing the operation power of the exhaust fan unit to ensure that the exhaust air quantity of the cultivation house is equal to the air supply quantity of an air conditioning system of the cultivation house, and closing the small window; if not, continuing to execute the exhaust air adjusting command.
Specifically, the operation modes of the fresh air conditioning system specifically include: the system comprises a heating mode, a refrigerating mode and a ventilation mode, wherein the heating mode is specifically started to heat the inside of the cultivation house in winter, the refrigerating mode is specifically started to cool the inside of the cultivation house in summer, and the ventilation mode is specifically used for introducing fresh air when the temperature in the cultivation house reaches the standard.
In the above three embodiments, the determining whether the indoor temperature meets the second temperature preset condition corresponding to the current operation mode specifically includes:
judging whether the indoor temperature is greater than or equal to the sum of the indoor target temperature and the second control temperature difference value when the refrigerating mode is operated;
judging whether the indoor temperature is less than or equal to the difference between the indoor target temperature and the second control temperature difference value when the heating mode is operated;
and judging whether the indoor temperature is smaller than or equal to the difference between the indoor target temperature and the second control temperature difference value or whether the indoor temperature is larger than or equal to the sum of the indoor target temperature and the second control temperature difference value when the ventilation mode is operated.
The first temperature preset condition corresponding to the current operation mode is specifically as follows:
the first temperature preset condition that the indoor temperature meets the heating mode corresponds is: the indoor temperature is greater than or equal to a difference between the indoor target temperature and the first control temperature difference.
The first temperature preset condition corresponding to the indoor temperature meeting the ventilation mode is as follows: the indoor temperature is greater than or equal to a difference between the indoor target temperature and the first control temperature difference, and the indoor temperature is less than or equal to a sum of the indoor target temperature and the first control temperature difference.
The first temperature preset condition corresponding to the indoor temperature meeting the refrigeration mode is as follows: the indoor temperature is greater than or equal to a sum of the indoor target temperature and the first control temperature difference.
The carbon dioxide concentration adjusting threshold is an indoor target carbon dioxide concentration value, the concentration deviation value is a deviation range of carbon dioxide concentration control, so that the concentration of carbon dioxide in the cultivation house is controlled between the carbon dioxide concentration adjusting threshold and a first concentration deviation value and between the carbon dioxide concentration adjusting threshold and a first concentration deviation value, and the specific values of the first concentration deviation value and the second concentration deviation value can be set according to actual needs.
The second control temperature difference value is larger than the first control temperature difference value, and the control temperature difference value is used for judging the difference value of the temperature interval when adjusting the concentration of carbon dioxide, so that the indoor temperature is ensured not to deviate from the target temperature too far to cause overlarge temperature fluctuation when the concentration of carbon dioxide is reduced. The first control temperature difference value and the second control temperature difference value can be obtained through experiments, and the phenomenon that the indoor temperature change is overlarge due to the fact that fresh air is introduced through a small window is avoided.
Opening the small window of the cultivation house and controlling the opening of the small window according to the airflow velocity at the small window specifically comprises the following steps: when the small window airflow velocity is larger than the sum of the small window wind speed adjusting threshold value and the flow velocity control deviation value, increasing the opening of the small window; and when the small window airflow speed is smaller than the difference between the small window wind speed adjustment threshold value and the flow speed control deviation value, reducing the small window opening.
In an embodiment, the exhaust fan of the exhaust fan unit is a constant frequency fan, and the increasing and decreasing the operation power of the exhaust fan unit is as follows: and when the number of the exhaust fans is reduced, firstly closing the exhaust fan with the longest running time, and prolonging the service life of the fan.
In another embodiment, the exhaust fan of the exhaust fan unit is a variable frequency fan, and the increasing and decreasing the operation power of the exhaust fan unit is as follows: the frequency conversion fan is controlled to increase and decrease the running frequency in a PID control mode, and when the frequency conversion fan is increased to the highest, one exhaust fan is started, or when the frequency conversion fan is decreased to the lowest, the exhaust fan is closed, so that the exhaust air quantity is increased or decreased, and the exhaust air quantity of the cultivation house is equal to or close to the air inlet quantity.
The invention also provides a cultivation environmental control system, and the carbon dioxide concentration in the cultivation house is reduced by using the control method. The cultivation environmental control system specifically comprises: air conditioning system (also can be called fresh air conditioning system), set up the small window baffle of the area of ventilation of small window position regulation, set up the exhaust fan unit of breeding the side of house (i.e. breed the current poultry fan of installation in the house) and detect the carbon dioxide detection unit of indoor (i.e. breed in the house) carbon dioxide concentration, detect the temperature or be indoor temperature's temperature sensor in the house.
The side surface of the cultivation house is correspondingly provided with small ventilation windows, the small ventilation windows are specifically arranged at the upper parts of the wall surfaces on two sides of the cultivation house at a longer distance, and a plurality of small ventilation windows are arranged along the wall to be aligned; the small window is a self-equipped component of the existing breeding house, and no new equipment is needed. And an air outlet is arranged at the position opposite to the small window, and an air exhaust fan unit is arranged at the air outlet. The above specific structures have been described in detail in the prior art, and are not important for protection of the present invention, and are not described in detail.
As shown in fig. 1, the following is a specific embodiment of the present invention, namely, the specific control flow of the above system (the CO2 concentration adjustment threshold is a carbon dioxide concentration adjustment threshold, the CO2 concentration control deviation value 1 is a first concentration deviation value, the CO2 concentration control deviation value 2 is a second concentration deviation value, the CO2 concentration control temperature difference value 1 is a first control temperature difference value, and the CO2 concentration control temperature difference value 2 is a second control temperature difference value):
1. the system runs normally, and at the moment, the air supply quantity=the air discharge quantity in the cultivation house;
2. detecting the indoor carbon dioxide concentration by a carbon dioxide detection unit, and if the indoor carbon dioxide concentration exceeds the CO2 concentration adjustment threshold value [ CO2 concentration control deviation value 1 ], entering temperature condition judgment;
if not, terminating the flow;
3. detecting the indoor temperature in each mode through a temperature detection unit, and judging the difference value between the indoor temperature and the indoor target temperature through a judgment unit;
3.1, in a heating mode, if the temperature of the indoor temperature is more than or equal to the temperature of the indoor target temperature and the temperature difference value of CO2 concentration control is 1, entering a flow 4;
if not, terminating the flow;
3.2, in a ventilation mode, if the temperature difference value of the concentration control temperature of the CO2 is less than or equal to the temperature difference value of the concentration control temperature of the CO2 in the room, entering a flow 4;
if not, terminating the flow;
3.3, in a refrigeration mode, if the indoor temperature is not less than the indoor target temperature and the CO2 concentration control temperature difference value is 1, entering a flow 4;
if not, terminating the flow;
4. after any condition of 3.1-3.3 is met, the control unit issues an air exhaust regulation command, if the frequency of the air exhaust fan reaches the maximum or a fixed frequency fan is adopted according to the situation, the air exhaust fan is additionally started, if the fan does not run at full frequency, the air fan is controlled to raise the frequency, the frequency of the air exhaust fan can be controlled in a PID control mode, the control signal can be a deviation value of the indoor temperature and the target temperature, and specific control logic of PID control is not specifically repeated, so that the air exhaust fan is a common control mode in the prior art;
5. and detecting the airflow velocity condition at the small window through the small window wind speed detection unit, so as to adjust the opening of the small window.
5.1, increasing the opening of the small window when the airflow velocity at the small window > [ small window wind speed adjustment threshold v ] + [ flow speed control deviation value Deltav1 ];
5.2, when the airflow velocity at the small window is < [ small window wind speed adjustment threshold v ] [ flow speed control deviation value Deltav 2 ], reducing the opening of the window;
6. during execution of the above flow, the carbon dioxide concentration detection unit and the temperature detection unit monitor the relevant data in real time.
6.1, when the indoor CO2 concentration is less than or equal to [ CO2 concentration adjustment threshold value ] [ CO2 concentration control deviation value 2 ], [ CO2 concentration control deviation value ], [ CO2 concentration adjustment threshold value ], [ CO2 ] is entered into a flow 7;
and 6.2, the temperature detection unit detects the indoor temperature in different modes.
6.2.1, when the temperature (indoor temperature) is more than or equal to the temperature (indoor target temperature) in the refrigeration mode (CO 2 concentration control temperature difference value 2), entering a flow 7;
6.2.2, when the temperature in the heating mode is less than or equal to the temperature in the room (indoor target temperature) and the temperature difference value of CO2 concentration control is 2, entering a flow 7;
6.2.3 when the indoor temperature is less than or equal to the indoor target temperature in the ventilation mode, the CO2 concentration control temperature difference value 2 or the indoor temperature is more than or equal to the indoor target temperature and the CO2 concentration control temperature difference value 2, entering a flow 7;
that is, if either of the conditions 6.1 and 6.2 is satisfied in the flow 6, the flow 7 is entered, and if both the conditions 6.1 and 6.2 are not satisfied at the same time, the adjustment of the flow 4 and the flow 5 is continued.
7. When any one of the conditions 6.1 and 6.2 is met, the control unit issues an air discharge regulation command, if a fixed-frequency fan is adopted according to the situation, a fan with longer running time is closed, and if the fan does not run at the minimum frequency, the fan is controlled to reduce the frequency, so that the air discharge = air supply;
8. after the steps are finished, the small window is closed, and the control flow is finished.
The control mode can utilize logic judgment to control exhaust of the cultivation house by detecting carbon dioxide concentration and temperature fluctuation in the house. The small window control logic is added to prevent the condition that the airflow velocity in the house is too high or too low in the air exhaust process because the airflow velocity change is introduced into the small window by adjusting the air exhaust. By utilizing the design, the temperature in the cultivation house can be ensured to be in a control range in the process of reducing the carbon dioxide concentration by ventilation of the cultivation house, and the condition of severe fluctuation of the temperature in the house caused by increasing exhaust air is effectively reduced.
It is noted that the above-mentioned terms are used merely to describe specific embodiments, and are not intended to limit exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A control method of a cultivation environmental control system, characterized in that the cultivation environmental control system comprises: little window to and exhaust fan unit and new trend air conditioning system, new trend air conditioning system's mode of operation includes: the control method comprises the following steps of:
the system operates;
judging whether the indoor carbon dioxide concentration is larger than the sum of the carbon dioxide concentration adjusting threshold value and the first concentration deviation value;
if yes, when the indoor temperature meets a first temperature preset condition corresponding to the current operation mode, an exhaust regulation command is sent out to increase the exhaust quantity and reduce the indoor carbon dioxide concentration;
judging whether the indoor temperature meets a second temperature preset condition corresponding to the current operation mode, if so, reducing the power of an exhaust fan unit to enable the exhaust air quantity of the cultivation house to be equal to the air supply quantity of a fresh air conditioning system, and closing a small window; if not, continuing to execute the exhaust air adjusting command;
the issuing of the exhaust adjustment command increases the exhaust amount specifically includes: increasing the operation power of the exhaust fan unit, opening a small window of the cultivation house and controlling the opening of the small window according to the airflow velocity at the small window;
after the exhaust air regulation command is executed to reduce the carbon dioxide concentration, judging whether the indoor carbon dioxide concentration is smaller than or equal to the difference between the carbon dioxide concentration regulation threshold value and the second concentration deviation value; if yes, reducing the power of the exhaust fan unit to enable the exhaust amount of the cultivation house to be equal to the air supply amount of the fresh air conditioning system, and closing the small window; if not, continuing to execute the exhaust air adjusting command;
the second temperature preset condition corresponding to the current operation mode is specifically: judging whether the indoor temperature is greater than or equal to the sum of the indoor target temperature and the second control temperature difference value when the refrigerating mode is operated; judging whether the indoor temperature is less than or equal to the difference between the indoor target temperature and the second control temperature difference value when the heating mode is operated; judging whether the indoor temperature is less than or equal to the difference between the indoor target temperature and the second control temperature difference value or whether the indoor temperature is greater than or equal to the sum of the indoor target temperature and the second control temperature difference value when the ventilation mode is operated;
opening the small window of the cultivation house and controlling the opening of the small window according to the airflow velocity at the small window specifically comprises the following steps: when the airflow velocity of the small window is larger than the sum of the airflow velocity regulating threshold value of the small window and the flow velocity control deviation value, increasing the opening of the small window; and when the small window airflow speed is smaller than the difference between the small window wind speed adjustment threshold value and the flow speed control deviation value, reducing the opening of the small window.
2. The method for controlling a cultivation environmental control system according to claim 1, wherein when the indoor temperature satisfies a first temperature preset condition corresponding to the heating mode, the method comprises: the indoor temperature is greater than or equal to a difference between the indoor target temperature and the first control temperature difference.
3. The method for controlling a cultivation environmental control system according to claim 1, wherein when the indoor temperature satisfies the first temperature preset condition corresponding to the ventilation mode, the method comprises: the indoor temperature is greater than or equal to a difference between the indoor target temperature and the first control temperature difference, and the indoor temperature is less than or equal to a sum of the indoor target temperature and the first control temperature difference.
4. The method for controlling a climate control system according to claim 1, wherein when the indoor temperature satisfies a first temperature preset condition corresponding to a cooling mode, the method comprises: the indoor temperature is greater than or equal to a sum of the indoor target temperature and the first control temperature difference.
5. A cultivation environmental control system, characterized in that the carbon dioxide concentration in a cultivation house is reduced by using the control method of the cultivation environmental control system as claimed in any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211020647.1A CN115462316B (en) | 2022-08-24 | 2022-08-24 | Control method of cultivation environmental control system and cultivation environmental control system |
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| CN202211020647.1A CN115462316B (en) | 2022-08-24 | 2022-08-24 | Control method of cultivation environmental control system and cultivation environmental control system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109144151A (en) * | 2018-11-01 | 2019-01-04 | 隆昌邦得畜牧机械制造有限公司 | Environmental control system is given up in livestock-raising field |
| CN111937753A (en) * | 2020-09-16 | 2020-11-17 | 珠海格力电器股份有限公司 | Air conditioning system for breeding house, control method and device thereof, and storage medium |
| CN113303232A (en) * | 2021-05-19 | 2021-08-27 | 北京中集智冷科技有限公司 | Control method of colony house management system and colony house management system |
| CN114860005A (en) * | 2022-04-11 | 2022-08-05 | 西门子（中国）有限公司 | Method, device, system and medium for controlling breeding environment |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109144151A (en) * | 2018-11-01 | 2019-01-04 | 隆昌邦得畜牧机械制造有限公司 | Environmental control system is given up in livestock-raising field |
| CN111937753A (en) * | 2020-09-16 | 2020-11-17 | 珠海格力电器股份有限公司 | Air conditioning system for breeding house, control method and device thereof, and storage medium |
| CN113303232A (en) * | 2021-05-19 | 2021-08-27 | 北京中集智冷科技有限公司 | Control method of colony house management system and colony house management system |
| CN114860005A (en) * | 2022-04-11 | 2022-08-05 | 西门子（中国）有限公司 | Method, device, system and medium for controlling breeding environment |
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| CN115462316A (en) | 2022-12-13 |
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