CN109379917B - Farmland drainage salt control device and method - Google Patents
Farmland drainage salt control device and method Download PDFInfo
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- CN109379917B CN109379917B CN201710691003.8A CN201710691003A CN109379917B CN 109379917 B CN109379917 B CN 109379917B CN 201710691003 A CN201710691003 A CN 201710691003A CN 109379917 B CN109379917 B CN 109379917B
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- 150000003839 salts Chemical class 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 154
- 238000012545 processing Methods 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 239000003673 groundwater Substances 0.000 claims description 18
- 230000008859 change Effects 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 206010042674 Swelling Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B77/00—Machines for lifting and treating soil
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/005—Precision agriculture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/026—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving liquids
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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Abstract
The invention discloses a farmland drainage salt control device and method, and belongs to the field of farmland drainage salt control. The device includes: the intelligent control platform, the acquisition module assembly and the execution mechanism. The actuating mechanism includes: the water inlet pipe and the water outlet pipe are communicated with different sides of the communicating vessel, and the control valve is arranged on the water outlet pipe; the acquisition module assembly is arranged in the communicating vessel and is used for acquiring the water level and the salinity of waterlogging in the farmland in real time; the intelligent control platform is simultaneously connected with the acquisition module assembly and the control valve and used for receiving and processing water level and salt content information and controlling the opening and closing of the control valve according to a processing result. The device can not only gather the water level and the salinity information of farmland waterlogging through setting up the intelligence accuse platform and collection module subassembly, and according to this information collection, makes the intelligence accuse opening and shutting of platform automatic control valve, through the waterlogging of discharging, reaches the purpose that the salt was controlled in the drainage, so not only reduce intensity of labour, can adapt to environmental factor's change moreover.
Description
Technical Field
The invention relates to the field of farmland drainage salt control, in particular to a farmland drainage salt control device and a farmland drainage salt control method.
Background
In a farmland area with a prominent waterlogging disaster, the soil contains more waterlogging water, and in order to improve the relation between water, gas and heat of the soil and maintain the salinity balance of the soil in a root area, the waterlogging water with higher salt content needs to be discharged. In order to effectively remove redundant waterlogging in a farmland and prevent nitrogen and phosphorus loss and excessive drainage, the effective farmland drainage salt control device is necessary.
The prior art provides such a farmland drainage device: the device comprises a floating ball device, an elastic sheet control device, a water quality measurement and control device, a concealed pipe and a gate. The upper end of the floating ball device is provided with a spring plate control device, the spring plate control device is connected with the water quality measurement and control device, the lower end of the floating ball device is connected with the gate, the concealed pipe is arranged along the transverse direction of the gate, and the height of the gate is greater than that of the concealed pipe. The water quality monitoring device controls the opening and closing of the gate to realize water drainage by controlling the height of the floating ball through the elastic sheet control device, and water level management can be realized by manually adjusting the height of the floating ball.
The inventor finds that the prior art has at least the following problems:
the farmland drainage device provided by the prior art needs manual cooperation to adjust the water level, can not realize the control of salt content, not only increases the labor intensity, but also is difficult to adapt to the change of environmental factors.
Disclosure of Invention
In order to solve the technical problems, the embodiment of the invention provides a farmland drainage salt control device and a farmland drainage salt control method. The specific technical scheme is as follows:
in a first aspect, there is provided a farmland drainage salt control device, the device comprising: the intelligent control platform, the acquisition module assembly and the execution mechanism;
the actuator includes: a communicating vessel;
the water inlet pipe and the water outlet pipe are communicated with different sides of the communicating vessel;
the control valve is arranged on the water outlet pipe;
the acquisition module assembly is arranged in the communicating vessel and is used for acquiring the water level and the salinity of waterlogging in the farmland in real time;
the intelligent control platform is simultaneously connected with the acquisition module assembly and the control valve and used for receiving and processing the water level and the salt content information and controlling the opening and closing of the control valve according to a processing result.
Specifically, preferably, the acquisition module assembly comprises a three-parameter underground water recorder and a signal line connected to the three-parameter underground water recorder;
the three-parameter recorder is detachably arranged in the communicating vessel.
Specifically, as the preferred, the device still includes joint spare, through joint spare will three parameter record appearance along vertical direction setting in the inside of linker.
Specifically, preferably, the bottom of the communicating vessel is provided as an inclined surface;
the water inlet pipe is close to the high end of the inclined plane;
the water outlet pipe is close to the lower end of the inclined plane.
Specifically, as a preferred mode, the bottom of the communicating vessel is provided with a drain hole;
the inlet end of the drain hole is positioned at the lower end of the inclined plane, and the outlet end of the drain hole is communicated with the water outlet pipe.
Particularly, preferably, the free end of the water outlet pipe is provided with a protection mechanism;
the guard mechanism includes: the cover body is matched with the inclined notch at the free end of the water outlet pipe;
a crank arm connected with the upper end of the cover body;
the hoop is sleeved on the water outlet pipe;
the fixing shaft is arranged on the hoop;
the crank arm is hinged with the fixed shaft, so that the cover body is opened and closed.
Particularly, preferably, a gate valve is arranged on the water inlet pipe.
In a second aspect, a method for farmland drainage salt control by using any one of the farmland drainage salt control devices is provided, the method comprising:
placing the communicating vessel in a to-be-detected area below the ground of a farmland, wherein waterlogging water in the to-be-detected area enters the communicating vessel through a water inlet pipe;
the acquisition module component acquires the water level and the salinity of the waterlogging water in the communicating vessel in real time;
the intelligent control platform receives and processes the water level and the salt content information and guides the opening and closing of the control valve according to a processing result.
Further, the method further comprises:
presetting a water level threshold Hmin and a salt content threshold ECmax aiming at a specific growth stage of crops;
comparing the water level measured value H and the salt content measured value EC received from the collection module assembly with the water level threshold Hmin and the salt content threshold ECmax, respectively;
and if H is greater than Hmin and EC is less than ECmax, the intelligent control platform controls the control valve to be in a closed state, otherwise, the control valve is opened.
Further, the method further comprises:
judging whether 1.5Hmin > H >0.5Hmin or 0.5ECmax < EC <1.5ECmax is true or not;
if so, setting the acquisition time interval of the acquisition module assembly and the processing time interval of the intelligent control platform as short time step lengths;
and if not, setting the acquisition time interval of the acquisition module assembly and the processing time interval of the intelligent control platform as long time step lengths.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the device provided by the embodiment of the invention, through arranging the intelligent control platform and the acquisition module component, the water level and salinity information of waterlogging water of a farmland can be acquired in real time, and the intelligent control platform can automatically control the opening and closing of the control valve according to the acquired information, so that the water level and salinity of the waterlogging water of the farmland can be controlled, and the automatic control of drainage and salinity control of the farmland can be realized, so that the labor intensity is reduced, and the change of environmental factors can be adapted. For example, under different crop types, different growth stages of crops, different seasons and different weather conditions, the intelligent control platform and the collection module component can be matched with each other to automatically control water drainage and salt control in time so as to meet different waterlogging requirements.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a farmland drainage salt control device provided by an embodiment of the invention;
FIG. 2 is a schematic diagram illustrating a connection relationship between an acquisition module assembly and an actuator in the farmland drainage salt control device provided by the embodiment of the invention;
FIG. 3 is a schematic diagram of the depth control change of water levels in different growth periods of crops.
The reference numerals denote:
1-an intelligent control platform, wherein the intelligent control platform,
2-acquisition Module Assembly, 201-three parameter groundwater recorder, 202-Signal line
3-the execution mechanism is used for executing the operation,
301-communicating vessel, 3011-water drain hole, 302-water inlet pipe,
303-water outlet pipe, 3031-inclined cut, 304-control valve,
4-a clip, 401-an annular collar, 402-a support,
5-a protective device for the device to protect the device,
501-cover plate, 502-upper fixed arm, 503-hoop, 504-fixed shaft,
6-gate valve.
Detailed Description
Unless defined otherwise, all technical terms used in the examples of the present invention have the same meaning as commonly understood by one of ordinary skill in the art. In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In a first aspect, an embodiment of the present invention provides a farmland drainage salt control device, as shown in fig. 1 and fig. 2, the device comprising: the intelligent control platform comprises an intelligent control platform 1, an acquisition module component 2 and an execution mechanism 3.
Wherein, the actuator 3 includes: the water supply device comprises a communicating vessel 301, a water inlet pipe 302 and a water outlet pipe 303 which are communicated with different sides of the communicating vessel 301, and a control valve 304 arranged on the water outlet pipe 303.
The acquisition module component 2 is arranged inside the communicating vessel 301 and is used for acquiring the water level and the salinity of waterlogging in the farmland in real time;
the intelligent control platform 1 is simultaneously connected with the acquisition module assembly 2 and the control valve 304 and is used for receiving and processing water level and salt content information and controlling the opening and closing of the control valve 304 according to a processing result.
The working principle of the farmland drainage salt control device is summarized as follows:
the farmland drainage salt control device provided by the embodiment of the invention can be buried under the farmland ground to measure the water level and the salt content of waterlogging in the farmland, and can guide whether to discharge the waterlogging according to the measurement result, so that the purpose of drainage and salt control can be achieved when the waterlogging is discharged. In the specific application process, the communicating vessel 301 is buried in the region to be detected below the farmland ground, and at the moment, waterlogging in the region to be detected enters the communicating vessel 301 from the water inlet pipe 302. Based on the principle of the communication of the communicator 301, the water level of the waterlogging water inside the communicator 301 is identical to the water level thereof in the area to be measured.
Since the collection module assembly 2 is disposed inside the communicating vessel 301, it can collect the water level and salinity of waterlogged water inside the communicating vessel 301 (i.e., the water level and salinity of waterlogged water in the region to be measured in the farmland) in real time. The collection module component 2 is further connected with the intelligent control platform 1, the collection module component 2 can transmit the collected water level and salinity information to the intelligent control platform 1, the intelligent control platform 1 receives the information and then processes the information, and judges whether the water level and the salinity of waterlogging in the area to be detected meet the requirements or not according to the processing result, if the water level and the salinity of waterlogging in the area to be detected meet the requirements, a closing keeping instruction is sent to the control valve 304 (any instruction can also not be sent to the control valve 304), otherwise, an opening instruction is sent to the control valve 304 until the water level and the salinity of waterlogging in the area to be detected meet the requirements.
Therefore, the device provided by the embodiment of the invention can acquire the water level and salinity information of waterlogging water of the farmland in real time by arranging the intelligent control platform 1 and the acquisition module component 2, and can automatically control the opening and closing of the control valve 304 by the intelligent control platform 1 according to the acquired information so as to realize the automatic control of the drainage and salinity control of the farmland, thereby not only reducing the labor intensity, but also being capable of adapting to the change of environmental factors. For example, different crop types, different growth stages of crops, different seasons and different weather conditions can control whether waterlogging is discharged or not in time through mutual matching of the intelligent control platform 1 and the acquisition module component 2 so as to meet different requirements of waterlogging.
The various components of the device are described separately below:
the connection between the intelligent control platform 1 and the acquisition module assembly 2 and the control valve 304 can be a wired connection or a wireless connection.
The intelligent control platform 1 is used for receiving and processing the water level and salinity information of the waterlogged water, and it can be understood that the intelligent control platform 1 is internally provided with a corresponding processing program to execute the processing process. The processing procedure can comprise the following steps:
and presetting a water level threshold Hmin and a salt content threshold ECmax aiming at a specific growth stage of crops.
The water level measured value H and the salinity measured value EC received from the collection module assembly 2 are compared with the water level threshold Hmin and the salinity threshold ECmax, respectively.
If H > Hmin and EC < ECmax, the control valve 304 is closed, otherwise, the control valve 304 is opened.
In the embodiment of the invention, the water level threshold Hmin and the salt content threshold ECmax are preset in the intelligent control platform 1 aiming at the specific growth stage of the crops so as to be respectively compared with the actually measured water level and salt content, and thus, a processing result of whether the currently measured information meets the requirement is obtained.
Wherein, the requirement for waterlogging water content is different due to different growth stages of crops, for example, as shown in figure 3, the water level control depth of seedling stage is 0.3m, the water level control depth of branch flowering stage is 0.4m, the water level control depth of flowering and swelling stage is 0.5 m, and the water level control depth of swelling stage is 0.7 m. Therefore, different water level thresholds Hmin and salt content thresholds ECmax are preset for specific growth stages of the crops respectively.
If H is more than Hmin and EC is less than ECmax, the water level is below the safe water level, and the salt content does not cause harm to the growth of crops, at this time, the intelligent control platform 1 enables the control valve 304 to be in a closed state. On the contrary, when any one of the water level or the salt content does not meet the requirement, the intelligent control platform 1 opens the control valve 304.
When the acquisition module component 2 is used for acquiring waterlogging water level and salinity information and the intelligent control platform 1 is used for processing the information, whether 1.5Hmin > H >0.5Hmin or 0.5ECmax < EC <1.5ECmax is judged, if yes, the acquisition time interval of the acquisition module component 2 and the processing time interval of the intelligent control platform 1 are both set to be short time step length, otherwise, the acquisition time interval of the acquisition module component 2 and the processing time interval of the intelligent control platform 1 are both set to be long time step length.
In the examples of the present invention, the short time step is defined to be 20 to 50 minutes, for example, 20 minutes, 25 minutes, 30 minutes, 35 minutes, 40 minutes, 45 minutes, 50 minutes, etc., and the long time step is defined to be 3 to 8 hours, for example, 3 hours, 3.5 hours, 4 hours, 4.5 hours, 5 hours, 5.5 hours, 6 hours, 6.5 hours, 7 hours, 7.5 hours, etc.
The specific selection of the short-time step length and the long-time step length can be dynamically adjusted according to factors such as crop types, growth periods, weather environments and the like, and the method is only required to ensure that the reaction speed of the farmland drainage salt control device can be improved when the water content and the salt content are close to the threshold value, the operation frequency can be reduced in a safety range far away from the threshold value, and resources are saved. Meanwhile, one terminal can control more farmland drainage salt control devices.
The intelligent control platform 1 is used as a terminal device, and may be in the form of a computer, a mobile phone, a tablet computer, and the like, and the embodiment of the present invention is not particularly limited thereto.
For the collection module assembly 2, which can collect the water level and salinity of waterlogging in real time, as an example, the collection module assembly 2 includes: a three-parameter underground water recorder 201 and a signal line 202 connected with the three-parameter underground water recorder 201;
wherein, three parameter groundwater record appearance 201 sets up in linker 301 detachably.
Three-parameter groundwater recorders 201 are conventional in the art, and for example, a Levelogger Edge model of three-parameter groundwater recorders manufactured and sold by solist, canada, may be suitable for use with embodiments of the present invention.
The three-parameter groundwater recorder 201 includes: data acquisition unit, conductivity sensor, pressure sensor, temperature probe, battery, waterproof shell. The working principle is that the conductivity (namely, salinity), the water level and the temperature of waterlogging water are respectively collected by using a conductivity sensor, a pressure sensor and a temperature detector and are stored in a data collector, and the data collector transmits the stored waterlogging water information (specifically, the water level and the salinity) to the intelligent control platform 1 for processing through a signal line 202.
It will be appreciated by those skilled in the art that three parameter groundwater recorder 201 is generally of cylindrical configuration, and that three parameter groundwater recorder 201 may be removably disposed within communicator 301 for ease of servicing, replacement, etc.
Specifically, this can dismantle the mode of setting can adopt modes such as joint, threaded connection, hasp connection, public box to connect and realize, for the ease of realizing above-mentioned relation of connection, can be equipped with suitable connecting piece to three parameter groundwater recorders 201.
For example, when the clamping manner is adopted, the device further comprises a clamping piece 4, and the three-parameter underground water recorder 201 is arranged on the inner wall of the communicating vessel 301 along the vertical direction through the clamping piece 4.
First, the clamping piece 4 is used as a connecting part of the three-parameter groundwater recorder 201 and the communicating vessel 301 to realize clamping of the two.
As an example, as shown in fig. 2, the clip 4 includes: one or more annular clamps 401 and supports 402, wherein the annular clamps 401 are fixed on the inner wall of the base 301 at intervals along the vertical direction, the supports 402 are also fixed on the inner wall of the base 301, the clamps 401 are used for clamping the body of the base 201, and the supports 402 are used for supporting the bottom end of the base 201.
Through setting up as above to fastener 4, insert three parameter groundwater record appearance 201 in annular clamp 401 and make its bottom and 402 counterbalance, can realize three parameter groundwater record appearance 201 fixed, and through pulling out three parameter groundwater record appearance 201 from it, can realize three parameter groundwater record appearance 201 dismantlement.
The annular collar 401 may be in clearance fit with the three-parameter groundwater recorder 201, and the support 402 may be provided in a funnel-shaped structure with a wide top and a narrow bottom.
Secondly, set up three parameter groundwater record appearance 201 along vertical direction, its purpose has bigger area of contact in the water level direction for waterlogging caused by excessive rainfall and three parameter groundwater record appearance 201 in the linker 301, can satisfy the water level measurement in the wider range.
During installation, the three-parameter underground water recorder 201 is installed at the high end of the inner inclined plane of the communicating vessel 301 and is opposite to the water outlet pipe 303, the vertical distance between the bottom end of the three-parameter underground water recorder 201 and the water inlet pipe 302 is set to be 3-8cm, such as 3cm, 4cm, 5cm, 6cm, 7cm and the like, and by the arrangement, the influence of water flow disturbance or silt and the like on data acquisition of the three-parameter underground water recorder 201 can be reduced.
The embodiment of the invention adopts the actuating mechanism 3 to simulate the waterlogging environment of the farmland and is used for drainage operation, and specifically, the actuating mechanism 3 comprises a communicating vessel 301, a water inlet pipe 302 and a water outlet pipe 303 which are communicated with different sides of the communicating vessel 301, and a control valve 304 arranged on the water outlet pipe 303.
The communicating vessel 301 has a communicating function so that the waterlogging environment inside thereof is the same as that outside. It will be appreciated that the communication vessel 301 has a hollow interior to accommodate waterlogging. Simultaneously, its open-top to in the installation of collection module subassembly 2, change, maintenance, signal line 202 is in order to be connected to actuating mechanism 3 outsidely through this opening, and then is connected with intelligence accuse platform 1 through wired or wireless connection, and its bottom is sealed, makes actuating mechanism 3 internal environment not direct contact soil, avoids the silt siltation, and can increase weight and make the focus position reduce, improves the stability of linker 301, is difficult for empting.
As an example, the communicating vessel 301 may be configured as a cylinder structure such as a square, a cylinder, etc., and accordingly, the top opening thereof may be square, circular, etc.
The water inlet pipe 302 and the water outlet pipe 303 are arranged on different sides of the communicating vessel 301, preferably on two opposite sides, so that the waterlogging can flow in the communicating vessel 301 in a larger range during water inlet and water outlet, and the waterlogging information measured by the three-parameter underground water recorder 201 can truly reflect the actual waterlogging information outside the communicating vessel 301.
Preferably, as shown in fig. 2, the bottom of the communicating vessel 301 is provided as an inclined surface;
the inlet pipe 302 is near the high end of the ramp;
The above-mentioned "near the high end of the inclined plane" means that the water inlet pipe 302 is provided on the side wall of the communicating vessel 301 connected to the high end of the inclined plane. Wherein, the lower end of the nozzle of the water inlet pipe 302 is close to the high end of the bottom inclined plane of the communicating vessel 301 and is level with the high end of the bottom inclined plane of the communicating vessel 301.
The above-mentioned "near the lower end of the inclined surface" means that the outlet pipe 303 is provided on the side wall of the communicating vessel 301 connected to the lower end of the inclined surface.
By providing the communicating vessel 301 as above, the waterlogging flows in the communicating vessel 301 in the slope-down direction, reducing the resistance, facilitating smooth drainage, and preventing silt from depositing.
Further, a drain hole 3011 is provided on the bottom slope of the communicating vessel 301.
The inlet end of the water discharge hole 3011 is located at the lower end of the inclined plane, and the outlet end of the water discharge hole 3011 is communicated with the water outlet pipe 303.
The waterlogging water in the communicating vessel 301 is communicated with the water outlet pipe 303 through arranging the water outlet hole 3011, and the waterlogging water can be cylindrical or square, and the path can be straight line, arc line and the like. Preferably, as shown in fig. 2, the drainage holes 3011 are curved and cylindrical to facilitate smooth drainage and prevent silt from depositing.
Wherein, the drainage hole 3011 and inlet tube 302 are in the diagonal position, in order to further ensure smooth drainage, prevent silt from depositing.
A control valve 304 is provided on the outlet pipe 303 to control whether or not to discharge water. It is understood that the control valve 304 is an electrically controlled control valve, and is kept in a closed state or an open state according to a command sent by the intelligent control platform 1.
The gate valve 6 is provided on the water inlet pipe 302. Gate valve 6 is in the open mode when farmland drainage accuse salt device normally works, can conveniently maintain, change, overhaul etc. operation to collection module subassembly 2 and control valve 304 through manual closing gate valve 6.
Further, as shown in fig. 1, the free end of the outlet pipe 303 is provided with a protection mechanism 5.
The guard mechanism 5 includes: a cover body 501 matched with the inclined notch 3031 at the free end of the water outlet pipe 303;
a crank arm 502 connected to the upper end of the lid 501;
the hoop 503 is sleeved on the water outlet pipe 303;
and a fixing shaft 504 arranged on the hoop 503.
The crank arm 502 is hinged to the fixed shaft 504 to open and close the cover 501.
A matched cover body 501 is arranged on the inclined notch 3031 at the free end of the water outlet pipe 303 to cover the inclined notch 3031; the cover 501 is hinged to a fixed shaft 504 by a crank arm 502, so that the cover 501 can be turned up and down around the fixed shaft 504. During drainage, the cover body 501 is jacked up under the action of water pressure, so that drainage work is not hindered; when the water is not drained, the cover body 501 seals the inclined cut 3031 under the action of gravity to prevent water from flowing backwards and small animals from entering, and the function of protecting the farmland water drainage and salt control device is achieved.
Wherein the chamfered notch 3031 is a 20 ° to 50 ° chamfer, such as 30 °, to allow the cover 501 to conform more closely to the chamfered notch 3031 under the force of gravity.
The cover 501 may be a rubber, metal, or the like material sized to fit the size of the chamfered notch 3031.
The crank arm 502 is hinged to the fixed shaft 504, so as to ensure that the cover 501 is attached to the bevel notch 3031, and to drive the cover 501 to rotate around the fixed shaft 504 to open the bevel notch 3031.
In a second aspect, an embodiment of the present invention provides a method for farmland drainage salt control by using any one of the farmland drainage salt control devices described above, the method including:
placing the communicating vessel 301 in a to-be-detected area below the ground, and enabling waterlogging water in the to-be-detected area to enter the communicating vessel 301 through the water inlet pipe 302;
the acquisition module component 2 acquires the water level and the salt content of waterlogging water in the communicating vessel 301 in real time;
the intelligent control platform 1 receives and processes the water level and salt content information and controls the opening and closing of the control valve 304 according to the processing result.
The method provided by the embodiment of the invention can automatically control the farmland drainage and salt control according to the actual working conditions of the farmland, does not need manual participation, and reduces the labor intensity by automatically controlling the farmland drainage and salt control.
Further, the method further comprises:
presetting a water level threshold Hmin and a salt content threshold ECmax aiming at a specific growth stage of crops;
comparing the water level measured value H and the salt content measured value EC received from the acquisition module assembly 2 with a water level threshold Hmin and a salt content threshold ECmax, respectively;
if H is greater than Hmin and EC is less than ECmax, the intelligent control platform 1 controls the control valve 304 to be in a closed state, otherwise, the control valve 304 is opened.
Through setting up as above, regulation and control when realizing waterlogging water level and salinity to at the different growth stages of crop, need not change farmland drainage accuse salt device again and bury the degree of depth in the farmland and just can realize the demand of crop to different water levels and salinity, realized the full automation of farmland drainage accuse salt and operated, not only use manpower and materials sparingly, avoided manual operation's fault rate moreover.
Further, the method further comprises:
judging whether 1.5Hmin > H >0.5Hmin or 0.5ECmax < EC <1.5ECmax is true or not;
if yes, setting the acquisition time interval of the acquisition module component 2 and the processing time interval of the intelligent control platform 1 as short time step lengths;
if not, the acquisition time interval of the acquisition module component 2 and the processing time interval of the intelligent control platform 1 are set as long time step length.
The setting can improve the reaction speed of farmland drainage salt control device when moisture and salt content are close to the threshold value, and can reduce the operation speed in the safety range far away from the threshold value, thereby saving resources, reasonably distributing operation resources, lightening the burden of the server, and considering the condition that one terminal controls a plurality of farmland drainage salt control devices.
Therefore, the method provided by the embodiment of the invention can realize automatic control of farmland drainage salt control, thereby not only reducing labor intensity, but also being capable of adapting to the change of environmental factors. For example, different crop species, different growth stages of crops, different seasons and different weather conditions can meet different drainage requirements by changing the preset value of the intelligent control platform.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. An agricultural drainage salt control device, characterized in that the device includes: the intelligent control platform (1), the acquisition module assembly (2) and the execution mechanism (3);
the actuator (3) comprises: the communicating vessel (301), the communicating vessel (301) is arranged in a region to be detected below the ground of a farmland;
the water inlet pipe (302) and the water outlet pipe (303) are communicated with different sides of the communicating vessel (301), and waterlogging water in the area to be detected enters the communicating vessel (301) from the water inlet pipe (302);
a control valve (304) arranged on the water outlet pipe (303);
the acquisition module component (2) is arranged inside the communicating vessel (301) and is used for acquiring a water level value H and a salt content value EC of waterlogging water in the farmland in real time;
the intelligent control platform (1) is simultaneously connected with the acquisition module assembly (2) and the control valve (304) and is used for receiving and processing the water level and the salt content information and controlling the control valve (304) to open and close according to a processing result;
wherein, in performing farmland drainage salt control, the device is configured to:
if H is greater than Hmin and EC is less than ECmax, the intelligent control platform (1) controls the control valve (304) to be in a closed state, otherwise, the control valve (304) is opened, wherein Hmin is a water level threshold value preset for a specific growth stage of the crop, and ECmax is a salt content threshold value preset for the specific growth stage of the crop;
if 1.5Hmin > H >0.5Hmin or 0.5ECmax < EC <1.5ECmax, the collection time interval of the collection module assembly (2) and the processing time interval of the intelligent control platform (1) are both set as short time step length, otherwise, they are both set as long time step length.
2. The farmland drainage salt control device according to claim 1, wherein the collection module assembly (2) comprises a three-parameter groundwater recorder (201), a signal line (202) connected to the three-parameter groundwater recorder (201);
the three-parameter underground water recorder (201) is detachably arranged in the communicating vessel (301).
3. The farmland drainage salt control device according to claim 2, characterized in that the device further comprises a clamping piece (4), and the three-parameter underground water recorder (201) is arranged inside the communicating vessel (301) along the vertical direction through the clamping piece (4).
4. The farmland drainage salt-control device according to claim 1, wherein the bottom of the communicating vessel (301) is provided as an inclined plane;
the water inlet pipe (302) is close to the high end of the inclined plane;
the water outlet pipe (303) is close to the lower end of the inclined plane.
5. The farmland drainage salt-control device according to claim 4, characterized in that the bottom of the communicating vessel (301) is provided with a drainage hole (3011);
the inlet end of the drain hole (3011) is located at the lower end of the inclined plane, and the outlet end of the drain hole (3011) is communicated with the water outlet pipe (303).
6. A farmland drainage salt control device as claimed in claim 1, wherein the free end of the outlet pipe (303) is provided with a protection mechanism (5);
the guard mechanism (5) comprises: the cover body (501) is matched with the inclined notch (3031) at the free end of the water outlet pipe (303);
a crank arm (502) connected to the upper end of the lid (501);
the hoop (503) is sleeved on the water outlet pipe (303);
a fixing shaft (504) arranged on the hoop (503);
the crank arm (502) is hinged with the fixed shaft (504) to open and close the cover body (501).
7. The farmland drainage salt control device according to claim 1, wherein the water inlet pipe (302) is provided with a gate valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691003.8A CN109379917B (en) | 2017-08-14 | 2017-08-14 | Farmland drainage salt control device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691003.8A CN109379917B (en) | 2017-08-14 | 2017-08-14 | Farmland drainage salt control device and method |
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| Publication Number | Publication Date |
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| CN109379917A CN109379917A (en) | 2019-02-26 |
| CN109379917B true CN109379917B (en) | 2021-03-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3792331A (en) * | 1972-05-08 | 1974-02-12 | Chicago Bridge & Iron Co | Interface gaging system for underwater oil storage tanks |
| CN201218914Y (en) * | 2008-01-30 | 2009-04-08 | 石河子大学 | Automatic farmland information collection and intelligent irrigation control apparatus |
| CN102229313A (en) * | 2011-05-31 | 2011-11-02 | 深圳市元征软件开发有限公司 | Tyre pressure monitor system (TPMS) and tyre pressure monitoring method |
| CN204065814U (en) * | 2014-09-12 | 2014-12-31 | 天津市津水工程新技术开发公司 | Agricultural foggara Ore-controlling Role |
| CN205912453U (en) * | 2016-07-11 | 2017-02-01 | 山东胜伟园林科技有限公司 | Saline and alkaline land field water -saving irrigation accuse salt system |
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