CN112262694A - Underground space gas environment regulation and control method and system applied to deep-field agriculture - Google Patents
Underground space gas environment regulation and control method and system applied to deep-field agriculture Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
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Abstract
The invention discloses an underground space gas environment regulation and control method applied to deep agriculture. The method comprises the following steps: when the agricultural cultivation system works, the air inlet system on the ground supplies air from the air inlet channel and enters the agricultural cultivation space through the air inlet side of the air environment control gate valve; step two: a gas pressure sensor, a temperature sensor, a gas component detection device and a wind speed detection device in the agricultural cultivation space detect various gas environment parameters in the current agricultural cultivation space in real time; step three: when the gas environment parameters in the agricultural cultivation space need to be adjusted, the dynamic parameters are adjusted to be in a relatively stable state through adjustment of the gas adjusting layer and/or the humidity adjusting layer and/or the wind speed adjusting layer on the gas environment control gate valve. The invention has the advantage of realizing the stability control and regulation of the gas environment of the agricultural cultivation space. The invention also discloses an underground space gas environment regulation and control system applied to deep agriculture.
Description
Technical Field
The invention relates to the field of underground engineering environment, in particular to the field of agricultural cultivation for plant cultivation in deep ground space, and specifically relates to an underground space gas environment regulation and control method applied to deep ground agriculture. The invention also relates to an underground space gas environment regulation and control system applied to deep agriculture, which is adopted by the underground space gas environment regulation and control method applied to deep agriculture.
Background
With the development of economy, the development and utilization of surface space resources, particularly the space of oversized and large-sized cities, tend to be saturated, and a series of environmental problems follow. Meanwhile, human living space is continuously extruded, so that economic development is reversed, and great challenges are brought to production and life of people. Therefore, the development and utilization of underground space resources become increasingly important contents and fields in all countries in the world. At present, taking underground agriculture as an example, the underground space has the characteristics of relatively stable independent space system, no occupation of ground space, wide available depth and the like, and has the possibility of developing deep agriculture in cities. However, domestic and foreign researches on agricultural development of underground space exist in the research stage of improving agricultural test fields in underground seed banks and underground mines, more scientific researches only propose some development modes and concepts, the environment state of specific underground agricultural space is lack of fine researches, and the difficulty of realizing steady-state control and regulation of underground agricultural gas environment and the like becomes a key technical problem for restricting the development of underground agriculture.
Therefore, there is a need to develop a method to achieve steady state control and regulation of underground agricultural gas environments.
Disclosure of Invention
The first purpose of the present invention is to provide a method for regulating and controlling the gas environment in an underground space applied to deep agriculture, wherein a wireless signal receiving device can receive data signals transmitted by the signal sensing and detecting device installed in the agricultural cultivation space, and further control the grid density of the wind speed adjusting layer, the humidity adjusting layer and the gas processing layer, thereby realizing the stability control and regulation of the gas environment in the agricultural cultivation space.
The second purpose of the invention is to provide an underground space gas environment regulation and control system applied to deep agriculture, which is adopted by the underground space gas environment regulation and control method applied to deep agriculture, so that a gas environment stability control method of a plant cultivation space in the field of deep agriculture can be innovated, an environment control maintaining system of an underground agriculture space integrating mechanical control, air pressure control and intelligent control is innovated, and technical support is provided for the development of deep agriculture.
In order to achieve the first object of the present invention, the technical solution of the present invention is: an underground space gas environment regulation and control method applied to deep agriculture is characterized in that: comprises the following steps of (a) carrying out,
the method comprises the following steps: when the agricultural cultivation system works, the air inlet system on the ground supplies air from the air inlet channel, enters the agricultural cultivation space through the air inlet side of the gas environment control gate valve, and is sent to the air return system through the air outlet side of the gas environment control gate valve through the air return channel;
step two: a gas pressure sensor, a temperature sensor, a gas component detection device and a wind speed detection device in the agricultural cultivation space detect various gas environment parameters in the current agricultural cultivation space in real time;
step three: when the gas environment parameters in the agricultural cultivation space need to be adjusted, each sensor sends the detected parameters to the wireless signal receiving device through the wireless sensing device; the wireless signal receiving device receives the corresponding signals, and adjusts the dynamic parameters to a relatively stable optimal state through the adjustment of the gas adjusting layer and/or the humidity adjusting layer and/or the wind speed adjusting layer on the gas environment control gate valve according to the preset parameter values of the attributes of the plants cultivated in the agricultural cultivation space.
In the technical scheme, when the regulation and control capability of the gas environment control gate valve is not enough to realize the regulation and control of the optimal gas environment state of the agricultural cultivation space, the wireless signal receiving device transmits a signal to the local gas environment control and regulation device, and the local gas environment control and regulation device carries out corresponding supplementary regulation on the agricultural cultivation space.
In the technical scheme, the gas environment control gate valve comprises three control modes, namely a mechanical opening and closing mode of manual control, signal sensor feedback control and intelligent control.
In the technical scheme, the gas adjusting layer adjusts the components of external gas entering the inner space by adjusting the density of the gas filtering net grids;
the humidity adjusting layer adjusts the humidity of external air entering the internal space by adjusting the size of the vent holes of the humidity grid;
the wind speed adjusting layer adjusts the wind speed of external air entering the inner space by adjusting the size of the ventilation holes of the air inlet net grid.
In order to achieve the second object of the present invention, the technical solution of the present invention is: the underground space gas environment regulation and control system applied to deep agriculture is adopted by the underground space gas environment regulation and control method applied to deep agriculture, and is characterized in that: the device comprises an agricultural cultivation space internal sensing system, an agricultural cultivation space, a gas environment control gate valve, an air inlet channel and an air return channel; the air inlet side of the gas environment control gate valve is communicated with the air inlet channel, and the air return side of the gas environment control gate valve is communicated with the air return channel; the air inlet channel and the air return channel are both connected with the earth surface;
the sensing system inside the agricultural cultivation space is positioned in the agricultural cultivation space;
the gaseous environment control gate valve is located outside the agricultural cultivation space;
the gas environment control gate valve is provided with a gas regulating layer, a humidity regulating layer, a wind speed regulating layer and a wireless signal receiving device; the wireless signal receiving device is arranged on the upper part of the gas environment control gate valve;
the gas adjusting layer is provided with a gas filtering net grid;
a humidity grid is arranged on the humidity adjusting layer;
an air inlet grid is arranged on the air speed adjusting layer.
In the technical scheme, the air inlet side of the gas environment control gate valve is sequentially provided with the gas regulating layer, the humidity regulating layer and the air speed regulating layer from outside to inside; the wireless signal receiving device is arranged on the top of the gas adjusting layer, the humidity adjusting layer and the wind speed adjusting layer.
In the technical scheme, the sensing system in the agricultural cultivation space comprises a gas pressure sensor, a temperature sensor, a gas component detection device and a wind speed detection device;
wireless sensing devices are arranged on the gas pressure sensor, the temperature sensor, the gas component detection device and the wind speed detection device;
the gas pressure sensor, the temperature sensor, the gas component detection device and the wind speed detection device are arranged in the agricultural cultivation space.
In the technical scheme, the device further comprises a local gas environment control and regulation device; the local gas environment control and regulation device is positioned outside the gas environment control gate valve and is connected with the gas environment control gate valve.
In the above technical solution, the local gas environment control and regulation device includes a local temperature and humidity regulation device, a local gas pumping and exhausting device, and a local gas pipeline;
the local temperature and humidity adjusting device is connected with the air inlet side of the gas environment control gate valve through a local gas pipeline;
the local gas pumping and exhausting device is connected with the air outlet side of the gas environment control gate valve through a local gas pipeline.
The invention has the following advantages:
(1) the invention creates an environment control and maintenance system of underground agricultural space integrating mechanical control, air pressure control and intelligent control, and provides technical support for the development of deep agriculture; the coordination problem of different adaptability of deep agricultural space plants and human beings to the gas environment can be solved;
(2) the wireless signal receiving device can receive data signals transmitted by the signal sensing detection device installed in the agricultural cultivation space, and further control the grid density of the wind speed adjusting layer, the humidity adjusting layer and the gas processing layer, so that the stability control and adjustment of the gas environment of the agricultural cultivation space are realized.
Drawings
FIG. 1 is a flow chart of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural view of the wind speed adjusting layer of the present invention adjusting the wind speed of the external air entering the internal space by adjusting the size of the mesh grid vent holes.
Fig. 4 is a schematic structural diagram of the humidity adjusting layer adjusting the humidity of the external air entering the internal space by adjusting the size of the vent holes of the mesh grid in the present invention.
Fig. 5 is a schematic structural diagram of the gas conditioning layer of the present invention adjusting the density of the specific gas-carrying filter grids to adjust the composition of the external gas entering the internal space.
FIG. 6 is a sectional view of the air intake side of the air environmental control gate valve of the present invention, and the arrangement of the air velocity adjusting layer, the humidity adjusting layer, and the air adjusting layer within the air environmental control gate valve.
Fig. 7 is a front view of a frame of the gas regulating layer in the present embodiment.
Fig. 8 is a partially hidden structure diagram of the air inlet grid of the air adjustment layer in this embodiment with small size.
Fig. 9 is a schematic diagram showing the operation result of the traction rod of the air adjusting layer driving the traveling wheels to move so as to reduce the size of the grille in the air inlet grille in the embodiment.
Fig. 10 is a schematic view of a partially hidden structure with a large size for the air inlet grid of the air adjustment layer in this embodiment.
Fig. 11 is a schematic diagram of a track structure of the gas conditioning layer in this embodiment.
Fig. 12 is a side view of the gas regulating layer in the present embodiment.
Fig. 13 is a schematic structural view of a traveling wheel of the air regulation layer in this embodiment.
The arrows in fig. 2 indicate the direction of wind flow in the present invention.
In fig. 3, a1 represents the original state of the wind speed regulation layer; b1 shows the wind speed reduction state of the wind speed adjusting layer adjusting the mesh grid vent holes to be smaller; c1 shows the wind speed regulation layer adjusting the wind speed state with the mesh grid vent holes enlarged.
In fig. 4, a2 represents the original state of the humidity adjustment layer; b2 shows the humidity adjusting layer adjusting the humidity state with the mesh vents becoming smaller; c2 represents a reduced humidity state where the humidity control layer adjusts the mesh vents to become larger.
In fig. 5, a3 represents the original state of the gas regulating layer; b2 shows a state where the humidity control layer adjusts the vent holes of the mesh grid to be smaller and increases the removal rate of the components of the external air entering the internal space; c2 shows a state where the humidity control layer adjusts the vent holes of the mesh to be larger and the removal rate of the components of the external air entering the internal space to be reduced.
In fig. 6, Q indicates the direction of gas entering the inlet side of the gas atmosphere control gate valve.
A in fig. 8 denotes a hidden grill part in the air intake grill.
B in fig. 10 denotes a hidden grill section in the air intake grill.
In the figure, 1-an agricultural cultivation space internal sensing system, 1.1-a gas pressure sensor, 1.2-a temperature sensor, 1.3-a gas component detection device, 1.4-a wind speed detection device, 2-an agricultural cultivation space, 3-a gas environment control gate valve, 3.1-a gas regulation layer, 3.11-a gas filter grid, 3.2-a humidity regulation layer, 3.21-a humidity grid, 3.3-a wind speed regulation layer, 3.31-an air inlet grid, 3.32-a control center, 3.33-a walking wheel, 3.34-a track, 3.35-a dragging rod, 3.36-a connecting frame, 3.37-an upper door frame, 3.38-a lower door frame, G11-an upper track, G12-a lower track, 3.4-a wireless signal receiving device, 3.5-a central processing unit, 4-a local gas environment control and regulation device, 4.1-local temperature and humidity adjusting device, 4.2-local gas pumping and exhausting device, 4.3-local gas pipeline, 5-wireless sensing device, 6-air inlet channel, 7-air return channel, 8-air return system, 9-air inlet system and 10-earth surface.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily understood by the description.
With reference to the accompanying drawings: the regulation and control method of the underground space gas environment regulation and control system applied to deep agriculture comprises the following steps,
the method comprises the following steps: when the agricultural cultivation system works, the air inlet system 9 positioned on the ground surface 10 supplies air from the air inlet channel 6, enters the agricultural cultivation space 2 through the air inlet side of the gas environment control gate valve 3, and is sent to the air return system 8 through the air outlet side of the gas environment control gate valve 3 through the air return channel 7;
step two: signal sensing detection devices such as a gas pressure sensor 1.1, a temperature sensor 1.2, a gas component detection device 1.3 and a wind speed detection device 1.4 in the agricultural cultivation space 2 detect various gas environment parameters in the current agricultural cultivation space 2 in real time;
step three: when the gas environment parameters in the agricultural cultivation space 2 need to be adjusted, the gas pressure sensor 1.1, the temperature sensor 1.2, the gas component detection device 1.3 and the wind speed detection device 1.4 send the detected parameters to the wireless signal receiving device 3.4 of the gas environment control gate valve 3 through the wireless sensing device 5 carried by the gas pressure sensor, the temperature sensor, the gas component detection device and the wind speed detection device 1.4; the wireless signal receiving device 3.4 receives the corresponding signal and adjusts the dynamic parameters (i.e. the parameters of the gas environment to be adjusted inside the agricultural cultivation space 2) to a relatively stable optimal state (i.e. according to the preset parameter values of the properties of the plants cultivated inside the agricultural cultivation space 2) by adjusting the gas adjusting layer 3.1 and/or the humidity adjusting layer 3.2 and/or the wind speed adjusting layer 3.3 on the gas environment control gate valve 3 according to the preset parameter values of the properties of the plants cultivated inside the agricultural cultivation space 2).
Further, when the regulation ability of the gas atmosphere control gate valve 3 is insufficient to achieve the regulation of the optimum gas atmosphere state of the agricultural cultivation space 2 (the determination of the optimum parameter in the optimum gas atmosphere state is determined according to the type of plants specifically cultivated in the underground agricultural space, such parameters being distinguished by the kind of crops), the wireless signal receiving device 3.4 transmits signals to the local gas environment control and regulation device 4, the local gas environment control and regulation device 4 carries out corresponding supplementary regulation on the agricultural cultivation space 2 through the local temperature and humidity regulation device and the corresponding local gas pipeline, after the gas environment control gate valve 3 is used for regulating and controlling the agricultural cultivation space 2, the local temperature and humidity regulating device 4.1 regulates the temperature and humidity in the agricultural cultivation space 2 through the local gas pipeline 4.3, wherein the part of the agricultural cultivation space 2 which does not meet preset parameter values of the properties of plants cultivated in the agricultural cultivation space 2; the local gas extraction and evacuation device 4.2 regulates the gas composition in the agricultural growth space 2 via a local gas duct 4.3.
Further, the gas environment control gate valve 3 comprises three control modes, namely a manual control mechanical opening and closing mode; secondly, signal sensor feedback control; thirdly, when the human and the plant are co-located in a space and the adaptability of the human and the plant to the environment is different, the intelligent optimization control of the integrated processing of each signal sensor takes the optimal human survival parameter as a basic adjustment parameter to assist the modification of the survival environment parameters of the plant so as to adapt to the underground agricultural cultivation mode under more conditions;
the central processor continuously adjusts the underground agricultural space information in real time according to the detection-transmission-processing-command-control-execution mode of the information flow, the control mode is real-time, does not need human participation, and is called intelligent control.
In another case, the feedback control is a mode in which each type of sensing device feeds information back to the central processing unit for control and adjustment only when the living environment of the cultivated plants in the local agricultural space reaches a critical point suitable for the living environment.
Further, the gas adjusting layer 3.1 adjusts the components of the external gas entering the internal space by adjusting the density of the gas filtering grids 3.11 (carrying specific gas filtering grids, wherein the specific gas refers to harmful gas of the stratum where the deep agricultural space is applied);
the humidity adjusting layer 3.2 can adjust the humidity of the external air entering the internal space by adjusting the size of the vent holes of the humidity grid 3.21;
the wind speed adjusting layer 3.3 can adjust the wind speed of external air entering the inner space by adjusting the size of the ventilation holes of the air inlet net grid 3.31.
With reference to the accompanying drawings: the underground space gas environment regulation and control system applied to deep agriculture comprises an agricultural cultivation space internal sensing system 1, an agricultural cultivation space 2, a gas environment control gate valve 3, an air inlet channel 6 and an air return channel 7; the air inlet side of the gas environment control gate valve 3 is communicated with the air inlet channel 6, and the air return side is communicated with the air return channel 7; the air inlet channel 6 and the air return channel 7 are both connected with the earth surface 10;
the sensing system 1 inside the agricultural cultivation space is positioned in the agricultural cultivation space 2; the agricultural cultivation space 2 is a space place for plant cultivation;
the gas environment control gate valve 3 is located outside the agricultural cultivation space 2; the agricultural cultivation space 2 is an independent space isolated by a gas environment control gate valve 3; a gas environment control gate valve 3 for regulating the gas environment of the agricultural cultivation space;
the gas environment control gate valve 3 is provided with a gas adjusting layer 3.1, a humidity adjusting layer 3.2, a wind speed adjusting layer 3.3, a wireless signal receiving device 3.4 and a central processing unit 3.5; the wireless signal receiving device 3.4 and the central processing unit 3.5 are arranged on the upper part of the gas environment control door valve 3; the gas treatment layer, the humidity adjusting layer and the wind speed adjusting layer are used as actuating mechanisms and are respectively used for treating harmful gas and adjusting the humidity and the wind speed of the planting space;
the wireless signal receiving device is used for receiving signals transmitted by the sensor, and comprises various environment state signals measured by the gas pressure sensor, the humidity sensor, the gas composition detection device and the wind speed detection device, and information stored in the signals can reflect the state of the current agricultural underground space suitable for planting;
the wireless signal receiving device is used as an information transmission node, and transmits a signal carrying the information to the central processing unit, and the central processing unit stores various parameter information data which are suitable for the cultivation and growth environment of underground space plant cultivars at a specific depth (the stratums with different depths have different ground temperature gradients and have certain limitation on the choice of cultivars of agricultural plants); meanwhile, the central processing unit compares the suitable cultivation conditions of the planted plants according to the real-time environment information of the underground space sent by the wireless signal receiving device, makes adjustment commands of various information parameters, and sends the adjustment commands to the gas processing layer, the humidity adjusting layer and the air speed adjusting layer for execution;
the gas adjusting layer 3.1 is provided with a gas filtering grid 3.11; the density of the gas filter mesh 3.11 (carrying a specific gas filter mesh, wherein the specific gas refers to harmful gas of a stratum where a deep agricultural space is applied) is adjusted so as to adjust the components of the external gas entering the internal space;
a humidity grid 3.21 is arranged on the humidity adjusting layer 3.2; the humidity of the external air entering the internal space can be adjusted by adjusting the size of the vent holes of the humidity grid 3.21;
an air inlet grid 3.31 is arranged on the air speed adjusting layer 3.3; the wind speed of external air entering the inner space can be adjusted by adjusting the sizes of the ventilation holes of the air inlet grids 3.31.
Further, the air inlet side of the gas environment control gate valve 3 is sequentially provided with a gas adjusting layer 3.1, a humidity adjusting layer 3.2 and a wind speed adjusting layer 3.3 from outside to inside; wireless signal receiving arrangement 3.4 sets up gas regulation layer 3.1, humidity control layer 3.2 and wind speed regulation layer 3.3's top, and the effect of gas regulation layer, humidity control layer and wind speed regulation layer installation order is: firstly, removing water in natural gas by using a gas adjusting layer, and further adjusting the depth in a humidity adjusting layer;
other devices, such as a wireless signal receiving device, are arranged on the upper part of the door valve, so that the signals can be received and processed by a central processing unit, and related information of the actuator can be quickly ordered.
Further, the sensing system 1 in the agricultural cultivation space comprises a gas pressure sensor 1.1, a temperature sensor 1.2, a gas component detection device 1.3 and a wind speed detection device 1.4;
the gas pressure sensor 1.1, the temperature sensor 1.2, the gas component detection device 1.3 and the wind speed detection device 1.4 are all provided with wireless sensing devices 5; the wireless sensing device 5 sends the parameters detected by the gas pressure sensor 1.1, the temperature sensor 1.2, the gas component detection device 1.3 and the wind speed detection device 1.4 to the wireless signal receiving device 3.4 of the gas environment control door valve 3;
the gas pressure sensor 1.1, the temperature sensor 1.2, the gas component detection device 1.3 and the wind speed detection device 1.4 are arranged in the agricultural cultivation space 2; the gas pressure sensor 1.1, the temperature sensor 1.2, the gas component detection device 1.3 and the wind speed detection device 1.4 are arranged at intervals.
Further, a local gas environment control and regulation device 4 is also included; the local gas environment control and regulation device 4 is positioned outside the gas environment control gate valve 3 and is connected with the gas environment control gate valve 3; the local gas environment control and regulation device 4 is a supplementary device for regulating the gas environment of the agricultural cultivation space by the gas environment control gate valve 3 (as shown in fig. 1 and 2).
Further, the local gas environment control and regulation device 4 comprises a local temperature and humidity regulation device 4.1, a local gas pumping and exhausting device 4.2 and a local gas pipeline 4.3;
the local temperature and humidity adjusting device 4.1 is connected with the air inlet side of the gas environment control gate valve 3 through a local gas pipeline 4.3; the local temperature and humidity adjusting device 4.1 adjusts the temperature and the humidity in the agricultural cultivation space 2 through a local gas pipeline 4.3;
the local gas pumping and exhausting device 4.2 is connected with the air outlet side of the gas environment control gate valve 3 through a local gas pipeline 4.3; the local gas extraction and evacuation device 4.2 regulates the gas composition in the agricultural growth space 2 via a local gas duct 4.3.
Examples
The humidity regulation of the invention applied to certain agricultural cultivation space is taken as an embodiment, the invention is explained in detail, and the invention also has a guiding function for regulating and controlling the gas environment of other underground spaces.
In the regulation and control method of the underground space gas environment regulation and control system applied to deep agriculture, the underground agricultural space is located in a certain modified mine in the eastern region, the depth is between-500 m and 600m, the whole structure comprises an air inlet shaft, an underground agricultural space, an air return shaft and a local fan supplementary adjustment system, various environment sensors and control execution mechanisms are combined, the underground agricultural space is located in a stratum with stable confining pressure, no harmful radioactive substances and harmful gases exist in the stratum, only a few low-density methane gases remain, the rock integrity is high, the support structure of the original mine is utilized, after modification, secondary reinforcement modification is carried out, and an intelligent detection and control system is added to realize the structural function of the underground agricultural space.
The structure on gas regulation layer 3.1, humidity control layer 3.2, wind speed control layer 3.3 in this embodiment is the same, all is similar to push-and-pull door structure, and the difference lies in: the material and permeability of the grids between the gas adjusting layer 3.1, the humidity adjusting layer 3.2 and the wind speed adjusting layer 3.3 are different (as shown in fig. 7, 11, 12 and 13);
the specific structure of the wind speed adjusting layer 3.3 in this embodiment is as follows:
the wind speed adjusting layer 3.3 comprises an air inlet mesh grid 3.31, a control center 3.32, a traveling wheel 3.33, a track 3.34, a drag rod 3.35, a connecting frame 3.36, an upper door frame 3.37 and a lower door frame 3.38; the control center 3.32 is arranged at the upper part of the drag rod 3.35; the walking wheels 3.33 are arranged on the connecting frame 3.36, the connecting frame 3.36 is arranged on the traction rod 3.35, and the walking wheels 3.33 are movably connected with the track 3.34; the movement space of the travelling wheels 3.33 is larger than the adjusting space of the wind speed, so that the size of the grids in the air inlet grid 3.31 can be adjusted by adjusting the positions of the travelling wheels 3.33, and further the adjustment of the wind speed is realized;
the track 3.34 comprises an upper track G11 and a lower track G12, so that the dragging rod 3.35 can drag the adjustable air inlet net grid to move up and down synchronously; an upper rail G11 is provided on the upper doorframe 3.37 and a lower rail G12 is provided on the lower doorframe 3.38 (as shown in fig. 7-13).
The method for adjusting the wind speed of the air inlet mesh grid 3.31 in the embodiment is as follows: the control center 3.32 obtains a wind speed adjusting instruction of the central processing unit, and the control center is analyzed and converted into a moving speed instruction of dragging equipment to drag the adjustable air inlet grid;
the control center sends a moving speed instruction of the adjustable air inlet grid to an instruction receiving device on a traveling wheel 3.33, the instruction receiving device on the traveling wheel 3.33 obtains the moving speed instruction, the traveling wheel 3.33 is controlled to advance according to a specific speed and direction through a motor, the traveling wheel 3.33 travels and moves on a track 3.34, the moving traveling wheels 3.33 are arranged at symmetrical positions on two sides of the track 3.34, and the moving states of the traveling wheels on two sides of the track 3.34 are kept synchronous;
the traveling wheels 3.33 are driven by the connecting frames 3.36 and the pull rods 3.35 to move, so as to drive the air inlet grids 3.31 to move, and further realize the adjustment of the grid size of the air inlet grids 3.31 (the structure of the air inlet grids 3.31 is similar to that of a sliding door) (as shown in fig. 7, 8, 9, 10 and 12).
In this embodiment, only the structures of the gas adjusting layer 3.1, the humidity adjusting layer 3.2, and the wind speed adjusting layer 3.3 in the present invention are illustrated; the air adjusting layer 3.1, the humidity adjusting layer 3.2 and the wind speed adjusting layer 3.3 can be set into other structures capable of adjusting the grid passing rate according to actual conditions.
In the trial operation process of the underground agricultural space described in this embodiment, taking humidity adjustment as an example, when the humidity sensor in the agricultural cultivation space detects that the humidity parameter in the current space is lower than the optimal parameter of the plants cultivated in the current space, the current humidity parameter value is sent to a wireless signal receiving device of the gas environment door valve through a wireless sensing device carried by the wireless signal receiving device, the wireless signal receiving device receives a corresponding signal, the information is transmitted to the gas environment control door valve humidity adjusting layer according to the preset optimal parameter value of the attributes of the cultivated plants in the agricultural internal cultivation space, the humidity of the external air entering the internal space is adjusted to the proper humidity by controlling the size of the mesh grid ventilation holes of the humidity-adjustable mesh grid in the humidity adjusting layer until new instruction adjusting information sent by the humidity sensor in the internal agricultural cultivation space is received.
In addition, methane adsorption active particles which can be replaced periodically are added into the gas adjusting layer 3.1 aiming at methane gas, and meanwhile, ventilation is accelerated in the wind speed adjusting layer 3.3, so that the concentration of the methane gas is reduced, and the gas environment is controlled within the proper range of the underground agricultural space.
The wireless signal receiving device 3.4 in this embodiment can receive the data signal transmitted by the signal sensing and detecting device installed in the agricultural cultivation space 2, and further control the grid density of the wind speed adjusting layer 3.3, the humidity adjusting layer 3.2 and the gas processing layer 3.1, thereby realizing the stability control and adjustment of the wind speed, the humidity and the air composition in the gas environment of the agricultural cultivation space.
After a period of observation and recording, the internal environmental parameters of the underground agricultural space are stable, and the ecological environmental conditions necessary for planting and cultivating plants are completely achieved.
Claims (9)
1. An underground space gas environment regulation and control method applied to deep agriculture is characterized in that: comprises the following steps of (a) carrying out,
the method comprises the following steps: when the agricultural cultivation system works, the air inlet system (9) positioned on the ground (10) supplies air from the air inlet channel (6), enters the agricultural cultivation space (2) through the air inlet side of the gas environment control gate valve (3), and is sent to the air return system (8) through the air outlet side of the gas environment control gate valve (3) through the air return channel (7);
step two: the method comprises the following steps that a gas pressure sensor (1.1), a temperature sensor (1.2), a gas composition detection device (1.3) and a wind speed detection device (1.4) in the agricultural cultivation space (2) detect various gas environment parameters in the current agricultural cultivation space (2) in real time;
step three: when the gas environment parameters in the agricultural cultivation space (2) need to be adjusted, each sensor sends the detected parameters to the wireless signal receiving device (3.4) through the wireless sensing device of each sensor; the wireless signal receiving device (3.4) receives corresponding signals and adjusts dynamic parameters to a relatively stable optimal state through the adjustment of the gas adjusting layer (3.1) and/or the humidity adjusting layer (3.2) and/or the wind speed adjusting layer (3.3) on the gas environment control gate valve (3) according to preset parameter values of the attributes of the plants cultivated in the agricultural cultivation space (2).
2. An underground space gas environment regulation method applied to deep ground agriculture according to claim 1, characterized in that: when the regulation and control capability of the gas environment control gate valve (3) is not enough to realize the regulation and control of the optimal gas environment state of the agricultural cultivation space (2), the wireless signal receiving device (3.4) transmits a signal to the local gas environment control and regulation device (4), and the local gas environment control and regulation device (4) carries out corresponding supplementary regulation on the agricultural cultivation space (2).
3. An underground space gas environment regulation method applied to deep ground agriculture according to claim 2, characterized in that: the gas environment control gate valve (3) comprises three control modes, namely a mechanical opening and closing mode of manual control, signal sensor feedback control and intelligent control.
4. A method for controlling a gas environment in an underground space for deep ground agriculture according to claim 3, wherein: the gas adjusting layer (3.1) adjusts the density of the gas filtering net grid (3.11) so as to adjust the composition of the external gas entering the internal space;
the humidity adjusting layer (3.2) adjusts the humidity of the external air entering the internal space by adjusting the size of the vent holes of the humidity grid (3.21);
the wind speed adjusting layer (3.3) adjusts the wind speed of external air entering the inner space by adjusting the size of the vent holes of the air inlet net grid (3.31).
5. The underground space gas environment regulation and control system applied to deep agriculture, which is adopted by the underground space gas environment regulation and control method applied to deep agriculture according to any one of claims 1 to 4, is characterized in that: the device comprises an agricultural cultivation space internal sensing system (1), an agricultural cultivation space (2), a gas environment control gate valve (3), an air inlet channel (6) and an air return channel (7); the air inlet side of the gas environment control gate valve (3) is communicated with the air inlet channel (6), and the air return side is communicated with the air return channel (7); the air inlet channel (6) and the air return channel (7) are both connected with the earth surface;
the sensing system (1) inside the agricultural cultivation space is positioned in the agricultural cultivation space (2);
the gas environment control gate valve (3) is positioned outside the agricultural cultivation space (2);
the gas environment control gate valve (3) is provided with a gas adjusting layer (3.1), a humidity adjusting layer (3.2), a wind speed adjusting layer (3.3) and a wireless signal receiving device (3.4); the wireless signal receiving device (3.4) is arranged on the upper part of the gas environment control door valve (3);
a gas filtering net grid (3.11) is arranged on the gas adjusting layer (3.1);
a humidity grid (3.21) is arranged on the humidity adjusting layer (3.2);
an air inlet grid (3.31) is arranged on the air speed adjusting layer (3.3).
6. An underground space gas environment conditioning system for deep ground agriculture according to claim 5 wherein: the air inlet side of the gas environment control gate valve (3) is sequentially provided with a gas regulating layer (3.1), a humidity regulating layer (3.2) and an air speed regulating layer (3.3) from outside to inside; the wireless signal receiving device (3.4) is arranged at the top of the gas adjusting layer (3.1), the humidity adjusting layer (3.2) and the wind speed adjusting layer (3.3).
7. An underground space gas environment conditioning system for deep ground agriculture according to claim 6 wherein: the sensing system (1) in the agricultural cultivation space comprises a gas pressure sensor (1.1), a temperature sensor (1.2), a gas component detection device (1.3) and a wind speed detection device (1.4);
wireless sensing devices are arranged on the gas pressure sensor (1.1), the temperature sensor (1.2), the gas component detection device (1.3) and the wind speed detection device (1.4);
the gas pressure sensor (1.1), the temperature sensor (1.2), the gas component detection device (1.3) and the wind speed detection device (1.4) are arranged in the agricultural cultivation space (2).
8. An underground space gas environment conditioning system for deep ground agriculture according to claim 7 wherein: the device also comprises a local gas environment control and regulation device (4); the local gas environment control and regulation device (4) is positioned outside the gas environment control gate valve (3) and is connected with the gas environment control gate valve (3).
9. An underground space gas environment conditioning system for deep ground agriculture according to claim 8 wherein: the local gas environment control and regulation device (4) comprises a local temperature and humidity regulation device (4.1), a local gas pumping and exhausting device (4.2) and a local gas pipeline (4.3);
the local temperature and humidity adjusting device (4.1) is connected with the air inlet side of the gas environment control gate valve (3) through a local gas pipeline (4.3);
the local gas pumping and exhausting device (4.2) is connected with the air outlet side of the gas environment control gate valve (3) through a local gas pipeline (4.3).
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