CN114342786B - Soil remediation humidity adjusting system and method - Google Patents
Soil remediation humidity adjusting system and method Download PDFInfo
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- CN114342786B CN114342786B CN202210059218.9A CN202210059218A CN114342786B CN 114342786 B CN114342786 B CN 114342786B CN 202210059218 A CN202210059218 A CN 202210059218A CN 114342786 B CN114342786 B CN 114342786B
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Abstract
The invention discloses a soil remediation humidity adjusting system and a method, wherein at least two humidity sensors are arranged in the same area and are respectively used in different stages of irrigation, wherein at least one humidity sensor can measure the soil humidity at different depths; the humidity measurement precision is improved by combining a resonance frequency shift method with a traditional gypsum balance method; providing sprinkling irrigation equipment and infiltrating irrigation equipment, and modifying the structures of the sprinkling irrigation equipment and the infiltrating irrigation equipment to adapt to flexible and changeable requirements; setting a model database and a data database, and optimizing an irrigation plan according to historical conditions, current conditions and future predicted conditions; dynamic region division is carried out on the soil to be irrigated by comprehensively considering the terrain information, the crop growth condition, the water migration trend and the like; by the mode, water sources can be saved, and the irrigation effect is improved.
Description
Technical Field
The invention belongs to application of big data and edge calculation technology in the field of farmland planting, and relates to a soil remediation humidity regulation related system and a concrete method.
Background
China has broad width and large and wonderful land, but the arable area is relatively limited, and the method has higher demand on grain yield. However, in recent years, with the rapid development and soaring of the Chinese economy and the continuous promotion of the urbanization process, vast rural areas are continuously compressed. Meanwhile, as a large number of people enter cities, the problem of aging of agricultural population is continuously highlighted, and sufficient agricultural labor force is difficult to ensure. Therefore, how to improve the intelligent management of the water content of the soil crops and improve the production efficiency becomes an irreparable task.
In addition, china is not a country with abundant water, and due to the limitation of meteorological conditions and environmental conditions, the continuous water supply without difference of soil can not be realized in each water supply peak period.
In order to solve the problems, a water-saving soil moisture intelligent control system and a method thereof have been developed, but the prior art widely has the following problems: firstly, the soil humidity measurement means is single, and the distribution condition of the water in the soil cannot be accurately reflected; secondly, the humidity measurement precision is not enough, so that the growth of crops is influenced, and water resource waste is caused; thirdly, the irrigation device cannot adapt to flexible and changeable actual environment, and the regulation and control of water quantity are not convenient enough; fourth, there is a lack of feedback and adjustment to established irrigation plans, parameters; fifthly, differential zone irrigation is not carried out according to the geographical conditions of different plots, and the global optimal solution cannot be realized.
Disclosure of Invention
The invention aims at the defects and provides a soil remediation humidity adjusting system and a method.
The invention provides a soil remediation humidity adjusting system, which comprises an irrigation device 1, an irrigation control valve 2, a flowmeter 3, a soil humidity sensor 4, a meteorological sensor 5, an irrigation control unit 6 and an edge calculation server 7, wherein the irrigation control valve is connected with the edge calculation server;
the multi-view visual mapping device 8 is used for measuring the terrain information and dividing the soil area according to the established rule on one hand, and is used for capturing the growth information of the soil crops and feeding the growth information back to the irrigation control unit 6 on the other hand.
Preferably, the irrigation control unit 6 comprises a crop irrigation model database, a crop historical growth information database, an irrigation parameter setting module, an irrigation control module, a humidity sensor interface, a meteorological sensor interface, a multi-view visual mapping device interface and a communication module; the edge calculation server 7 comprises a region division module and a growth analysis module.
Preferably, the irrigation device 1 includes a sprinkler 11, the sprinkler 11 specifically includes a main body 111 and a telescopic portion 112 capable of entering/extending out of the main body, the main body 111 has a plurality of first openings 113 with a first aperture Φ 1 distributed at equal intervals along the length direction, the telescopic portion 112 has a plurality of second openings 114 distributed at equal intervals along the length direction, the apertures of the plurality of second openings 114 are sequentially increased from one end of the telescopic portion 112 close to the main body 111 to the free end of the telescopic portion 112, and the smallest aperture in the plurality of second openings 114 is Φ 1.
Preferably, the expansion part 112 is also rotatable with respect to the main body 111, a sealing cap 115 is provided at a free end of the expansion part 112, and a stopper plug 116 is provided at an end of the expansion part 112 close to the main body 111.
Preferably, the irrigation device 1 further comprises an infiltration irrigation apparatus 12 inserted into the ground, the infiltration irrigation apparatus 12 is cylindrical, the sidewall of the infiltration irrigation apparatus 12 is provided with a plurality of groups of infiltration irrigation windows 121, each group of infiltration irrigation windows 121 comprises a strip-shaped infiltration irrigation opening 122 and a plurality of infiltration irrigation holes 123 located below the strip-shaped infiltration irrigation opening 122 and symmetrical along the central axis of the strip-shaped infiltration irrigation opening 122; the central axes of any two sets of the filtration irrigation windows 121 are not coincident.
Preferably, the soil moisture sensor 4 is disposed below the infiltrating irrigation equipment 12.
Preferably, the soil moisture meter further comprises an inverted cone-shaped soil hammer which is provided with a shell and an inner accommodating chamber which are nested with each other and used as a supplementary means for realizing fixed-point measurement of soil moisture.
Meanwhile, the invention also provides a humidity adjusting method applied to the soil remediation humidity adjusting system, which comprises the following steps:
s1: measuring the topography information through the multi-view visual mapping device 8 and capturing the growth information of the soil crops;
s2: the edge computing server 7 sets a soil area division rule according to the information fed back by the multi-view visual mapping device 8, and determines the crop variety, growth vigor and growth stage;
s3: dynamically dividing regions of the soil to be irrigated by the multi-view visual mapping device 8, wherein each region comprises a plurality of continuous plots with different terrain heights;
s4: arranging a plurality of groups of soil humidity sensors 4 with different lengths at a measuring position, and measuring the soil humidity by a resonance frequency shift method;
s5: the current atmospheric temperature, humidity, wind direction and air pressure are measured by the meteorological sensor 5, and the meteorological condition in the future 48 hours is predicted;
s6: the irrigation control unit 6 integrates the related contents of an irrigation model database and a crop historical growth data database according to the analysis result fed back by the edge calculation server 7, the zoning condition fed back by the multi-view vision mapping device 8, and the sensing result fed back by the soil humidity sensor 4 and the meteorological sensor 5, and sets irrigation parameters;
s7: the irrigation control unit 6 sets different irrigation plans for different plots in the same area;
s8: the irrigation control unit 6 controls the irrigation device 1 to irrigate the target plot according to the irrigation parameters and plan;
s9: after the irrigation is stopped, measuring whether the humidity of the specified depth of the soil reaches a set threshold value again after a preset time;
s10: if the humidity of the specified depth of the soil does not reach the set threshold value, a secondary irrigation plan is made according to the humidity information of the current specified depth of the soil and irrigation is carried out;
s11: after irrigation is finished, information such as current soil humidity information, irrigation quantity, irrigation times, irrigation time, crop growth, current meteorological conditions, meteorological conditions in the past 48 hours and the like is fed back to the irrigation model database to correct an irrigation plan.
Preferably, the step S4 specifically includes:
s41: a first humidity sensor group 41 consisting of two probes with first lengths is connected in parallel with a first resonant circuit with a first composite impedance value to form a first measuring loop so as to measure the surface humidity of the soil;
s42: a second humidity sensor group 42, consisting of two probes with a second length, is connected in parallel with a second resonant circuit with a first complex impedance value, forming a second measuring loop to measure the soil humidity at a first depth;
s43: a third humidity sensor group 43, consisting of two probes with a third length, is connected in parallel with a third resonant circuit with a first complex impedance value, forming a third measuring loop to measure the soil humidity at a second depth;
s44: a fourth humidity sensor group 44, consisting of two probes having a fourth length, is connected in parallel with a fourth resonant circuit having the first complex impedance value, forming a fourth measuring loop to measure the soil humidity at a third depth;
s45: respectively providing first alternating current to a first measurement loop, a second measurement loop, a third measurement loop and a fourth measurement loop through an oscillator to respectively obtain a first resonant frequency, a second resonant frequency, a third resonant frequency and a fourth resonant frequency;
s46: and taking the first resonant frequency as a first input end signal, and respectively taking the second resonant frequency, the third resonant frequency and the fourth resonant frequency as a second input end signal, and sequentially passing through the multiplier, the low-pass filter and the comparator so as to respectively obtain the relative humidity of the soil at different depths.
Preferably, in step S7, the irrigation amount is set to Q1, the irrigation time is set to T1, the irrigation amount is set to Q2 for a land parcel with a medium land level, the irrigation time is set to T2, the irrigation amount is set to Q3 for a land parcel with a low land level, and the irrigation time is set to T3, wherein Q1> Q2> Q3, and T1> T2> T3.
Preferably, in the step S7, when the high-terrain plot is irrigated in the step S7, the telescopic part 112 of the sprinkler irrigation equipment 11 extends out of the main body 111; when irrigating the plots with moderate terrain, the telescopic part 112 of the sprinkler irrigation equipment 11 enters the main body part 111, and the first opening 113 is opposite to the second opening 114; when the land plot with lower topography is irrigated, the telescopic part 112 of the sprinkler irrigation equipment 11 enters the main body part 111, and the first opening hole 113 is back to back with the second opening hole 114.
Preferably, in the step S7, when the plot with a higher topography is irrigated, the sprinkling irrigation equipment 11 and the infiltrating irrigation equipment 12 work simultaneously; when irrigating plots with moderate terrain, only the sprinkling irrigation equipment 11 works; when the plots with lower topography are irrigated, only the infiltrating irrigation equipment 12 works.
Compared with the prior art, the soil remediation humidity adjusting system and the soil remediation humidity adjusting method are upgraded and reformed, wherein firstly, at least two humidity sensors are arranged in the same area and are respectively used in different stages of irrigation, and at least one humidity sensor can measure the soil humidity at different depths; secondly, the humidity measurement precision is improved by combining a resonance frequency shift method with a traditional gypsum balance method; thirdly, simultaneously providing sprinkling irrigation equipment and infiltrating irrigation equipment, and modifying the structures of the sprinkling irrigation equipment and the infiltrating irrigation equipment to adapt to flexible and changeable requirements; fourthly, setting a model database and a data database, and optimizing an irrigation plan according to historical conditions, current conditions and future predicted conditions; fifthly, dynamic area division is carried out on the soil to be irrigated by comprehensively considering the terrain information, the crop growth situation, the water migration trend and the like; by the mode, water sources can be saved, and the irrigation effect is improved.
Drawings
FIG. 1 is a block diagram of a soil remediation moisture conditioning system of the present invention;
FIG. 2 is a diagram of the irrigation control unit and edge computing server architecture of the present invention;
FIG. 3 is a schematic view of the sprinkler irrigation apparatus of the present invention;
FIG. 4 is a view showing the construction of the infiltrating irrigation apparatus of the present invention;
FIG. 5 is a flow chart of the soil remediation moisture conditioning method of the present invention.
Description of reference numerals: the irrigation device 1, an irrigation control valve 2, a flowmeter 3, a soil humidity sensor 4, a meteorological sensor 5, an irrigation control unit 6, an edge calculation server 7, a multi-view visual mapping device 8, irrigation equipment 11, a main body part 111, a telescopic part 112, a first opening 113, a second opening 114, a sealing cover 115, a limiting sealing plug 116, infiltration irrigation equipment 12, an infiltration irrigation window 121, a strip-shaped infiltration irrigation opening 122, an infiltration irrigation hole 123, a first humidity sensor group 41, a second humidity sensor group 42, a third humidity sensor group 43, a fourth humidity sensor group 44 and an integrated circuit part 45.
Detailed Description
The techniques described below are susceptible to various modifications and alternative embodiments, and specific embodiments have been shown by way of example in the drawings and will be described in detail herein. However, this is not meant to limit the techniques described below to particular embodiments. It should be understood that the present invention includes all similar modifications, equivalents, and alternatives without departing from the spirit and technical scope of the technology described below.
As shown in fig. 1-4, the present invention provides a soil remediation humidity conditioning system, comprising an irrigation device 1, an irrigation control valve 2, a flow meter 3, a soil humidity sensor 4, a meteorological sensor 5, an irrigation control unit 6 and an edge calculation server 7;
the multi-view visual surveying and mapping device 8 is used for measuring the topography information and dividing the soil area according to the established rules on one hand, and is used for capturing the soil crop growth information and feeding the soil crop growth information back to the irrigation control unit 6 on the other hand.
The intensive soil management and the automatic agricultural planting both put forward higher requirements on the computing power of an intelligent control system, and the soil in different regions often has unique characteristics. The introduction of the edge computing server can quickly and properly process related data and improve the scientificity of soil remediation humidity adjustment.
The terrain information, the meteorological conditions, the historical data, the mathematical model and the growth situation of the crops are used as the basis for dividing the soil area, the root of the crops can transform the soil interior along with the difference change of the growth situation of the crops, the established rule can change, and the area division can be dynamically adjusted.
The irrigation control unit 6 comprises a crop irrigation model database, a crop historical growth information database, an irrigation parameter setting module, an irrigation control module, a humidity sensor interface, a meteorological sensor interface, a multi-view visual mapping device interface and a communication module; the edge calculation server 7 comprises a region division module and a growth analysis module.
The irrigation device 1 comprises a sprinkler irrigation device 11, the sprinkler irrigation device 11 specifically comprises a main body 111 and a telescopic part 112 capable of entering/extending out of the main body, a plurality of first holes 113 with a first aperture phi 1 are distributed on the main body 111 along the length direction at equal intervals, a plurality of second holes 114 are distributed on the telescopic part 112 along the length direction at equal intervals, the apertures of the second holes 114 are sequentially increased from one end of the telescopic part 112 close to the main body 111 to the free end of the telescopic part 112, and the minimum aperture in the second holes 114 is phi 1.
The expansion part 112 is also rotatable relative to the main body 111, a sealing cover 115 is disposed at a free end of the expansion part 112, and a limit sealing plug 116 is disposed at one end of the expansion part 112 close to the main body 111.
Generally speaking, the water pressure decreases progressively along the direction of keeping away from the water supply end, and in order to ensure the homogeneity of the sprinkling irrigation water yield, the aperture of the plurality of second openings of the telescopic part increases progressively in turn. However, when the extension portion extends out of the main body portion, in order to ensure that water flowing through the main body portion and entering the extension portion has sufficient water pressure, the apertures of the plurality of first openings of the main body portion should not be too large, and in order to ensure smooth transition of water pressure at the junction of the extension portion and the main body portion, the minimum aperture of the plurality of second openings is set to be the same as the apertures of the plurality of first openings.
In addition, by adjusting the extension length of the telescopic part relative to the main body part and the coincidence degree of the second opening and the first opening, the water yield and the sprinkling irrigation range can be flexibly adjusted at the tail end of the system, and the water pressure and the water yield do not need to be adjusted at the water supply end, so that the burden of the water supply end is reduced, and the complexity of the head end control system is reduced.
The irrigation device 1 further comprises an infiltration irrigation apparatus 12 inserted into the ground, wherein the infiltration irrigation apparatus 12 is cylindrical, the side wall of the infiltration irrigation apparatus is provided with a plurality of groups of infiltration irrigation windows 121, each group of infiltration irrigation windows 121 comprises a strip-shaped infiltration irrigation opening 122 and a plurality of infiltration irrigation holes 123 which are positioned below the strip-shaped infiltration irrigation opening 122 and are symmetrical along the central axis of the strip-shaped infiltration irrigation opening 122; the central axes of any two groups of the infiltration irrigation windows 121 are not coincident.
The water pressure flowing out from the infiltrating irrigation hole is large, the effect of loosening soil can be achieved, and the water flowing out from the strip-shaped infiltrating irrigation hole above the infiltrating irrigation hole can be conveniently and fully settled. In addition, in order to ensure enough osmotic pressure, fully infiltrating irrigation of peripheral areas and reduce water source loss as much as possible, the central axes of any two groups of infiltrating irrigation windows are arranged not to coincide.
Wherein the soil humidity sensor 4 is arranged below the infiltrating irrigation equipment 12.
The soil moisture sensor includes first to fourth sensor groups 41 to 44, which are constituted by probe pairs of different lengths, and are attached to the bottom end of the infiltrating irrigation apparatus via an integrated circuit part 45.
The soil moisture meter also comprises an inverted cone-shaped soil hammer which is provided with a shell and an inner containing chamber which are mutually nested, and the soil hammer is used as a supplementary means to realize the fixed-point measurement of the soil moisture.
Specifically, firstly, inserting a shell of a soil hammer into a point to be measured, then filling standard humidity soil in an inner containing chamber, inserting the inner containing chamber into the shell, and after the soil in the inner containing chamber and the external soil reach moisture balance, combining a regression equation by measuring the weight of the soil hammer to obtain the humidity of the point to be measured. Wherein the shell is used for avoiding the influence of animals, plant roots and cavities in the soil on water migration. The housing is made of a ceramic material and the interior compartment is baked from gypsum or kaolin.
As shown in fig. 5, the present invention further provides a humidity adjusting method applied to the soil remediation humidity adjusting system, comprising the following steps:
s1: measuring the terrain information through the multi-view vision mapping device 8 and capturing the growth information of the soil crops;
s2: the edge calculation server 7 sets a soil area division rule according to the information fed back by the multi-view vision mapping device 8, and determines the variety, growth and growth stage of crops;
s3: dynamic area division is carried out on the soil to be irrigated through the multi-view visual mapping device 8, and each area comprises a plurality of continuous plots with different terrain heights;
the water irrigated into the soil migrates from high to low along the terrain, and therefore the water holding capacity is not the same even if the adjacent plots have the same meteorological conditions and soil conditions. The soil areas are divided according to the topography, so that the water resource is utilized to the maximum extent, and the waste is reduced. For example, after irrigation of a high-lying land area a, 3% of water will migrate to a middle-lying land area B1,0.5% of water will migrate to a middle-lying land area B2, after irrigation of a middle-lying land area B1, 1% of water will migrate to a low-lying land area C1, and 4% of water will migrate to a low-lying land area C2, after a certain time interval, the land areas A, B, C2 can be divided into the same area.
In addition, even in adjacent plots, the growth vigor of crops is different sometimes, and the root systems of the crops can cause non-negligible influence on the internal structure of soil along with the growth of the crops. Changes in the internal structure of the soil, root density, etc., can all affect the migration of moisture in the soil. For example, after a period of time, after irrigation of a high-lying plot a, 1% of water will migrate to a medium-lying plot B1, and 2.5% of water will migrate to a medium-lying plot B2, the combination of zones of the plot A, B1 is dynamically adjusted to A, B.
S4: arranging a plurality of groups of soil humidity sensors 4 with different lengths at a measuring position, and measuring the soil humidity by a resonance frequency shift method;
s5: the current atmospheric temperature, humidity, wind direction and air pressure are measured by the meteorological sensor 5, and the meteorological condition in the future 48 hours is predicted;
s6: the irrigation control unit 6 integrates the related contents of an irrigation model database and a crop historical growth data database according to the analysis result fed back by the edge calculation server 7, the zoning condition fed back by the multi-view vision mapping device 8, and the sensing result fed back by the soil humidity sensor 4 and the meteorological sensor 5, and sets irrigation parameters;
s7: the irrigation control unit 6 sets different irrigation plans for different plots in the same area;
furthermore, in order to provide a basis for dynamic adjustment of the soil area, different areas are irrigated in different time periods respectively, and fixed time intervals are set among the time periods, so that sufficient time can be provided for migration of moisture in the soil, and therefore soil humidity and moisture migration trends can be measured better. The fixed time interval is determined by practical production experience in the field.
S8: the irrigation control unit 6 controls the irrigation device 1 to irrigate the target plot according to the irrigation parameters and plan;
s9: after the irrigation is stopped, measuring whether the humidity of the specified depth of the soil reaches a set threshold value again after a preset time;
the predetermined time is determined by actual production experience in the art. The re-measurement of the soil humidity is completed through the soil hammer, firstly, because the soil has equivalent humidity after irrigation at the moment, the migration phenomenon of the moisture is more remarkable, the measurement precision is met, secondly, the system power consumption can be saved, thirdly, the humidity measurement of the designated position can be realized, and the operation is more flexible.
S10: if the humidity of the specified depth of the soil does not reach the set threshold value, a secondary irrigation plan is made according to the humidity information of the current specified depth of the soil and irrigation is carried out;
the set threshold is determined by practical production experience in the field. The secondary irrigation plan can be performed by fixed-point irrigation equipment.
S11: after irrigation is finished, the current soil humidity information, irrigation quantity, irrigation times, irrigation time, crop growth, current meteorological conditions, meteorological conditions in the past 48 hours and the like are fed back to the irrigation model database so as to correct the irrigation plan.
Weather conditions, crop growth, this time irrigation condition, current weather conditions etc. of a period of time all can all exert an influence to this irrigation effect, through carrying out statistical analysis to these factors, constantly revise irrigation model, can effectively improve soil moisture control effect.
Wherein, the step S4 specifically includes:
s41: a first humidity sensor group 41 consisting of two probes with a first length is connected with a first resonance circuit with a first composite impedance value in parallel to form a first measuring loop so as to measure the surface humidity of the soil;
s42: a second humidity sensor group 42, consisting of two probes of a second length, is connected in parallel with a second resonant circuit having a first complex impedance value, forming a second measuring loop to measure the soil humidity at a first depth;
s43: a third humidity sensor group 43, consisting of two probes with a third length, is connected in parallel with a third resonant circuit with a first complex impedance value, forming a third measuring loop to measure the soil humidity at a second depth;
s44: a fourth humidity sensor group 44, consisting of two probes of a fourth length, is connected in parallel with a fourth resonant circuit with a first complex impedance value, forming a fourth measuring loop to measure the soil humidity at a third depth;
s45: respectively providing first alternating current to a first measurement loop, a second measurement loop, a third measurement loop and a fourth measurement loop through an oscillator to respectively obtain a first resonant frequency, a second resonant frequency, a third resonant frequency and a fourth resonant frequency;
s46: and taking the first resonance frequency as a first input end signal, and respectively taking the second resonance frequency, the third resonance frequency and the fourth resonance frequency as a second input end signal, and sequentially passing through a multiplier, a low-pass filter and a comparator to respectively obtain the relative humidity of the soil at different depths.
After the relative humidity at different depths of the soil is respectively obtained, second alternating currents are respectively provided for at least two of the first measuring circuit, the second measuring circuit, the third measuring circuit and the fourth measuring circuit through the oscillator, and the difference value of the relative humidity at any two corresponding positions is calculated according to the obtained difference value among the plurality of resonant frequencies so as to verify the humidity value measured in the step S4.
In step S7, the irrigation amount is set to Q1, the irrigation time is set to T1, the irrigation amount is set to Q2, the irrigation time is set to T2, the irrigation amount is set to Q3, and the irrigation time is set to T3 for the plots with high and medium terrains in the same area, where Q1> Q2> Q3 and T1> T2> T3.
Irrigation to different plots in the same area can be simultaneously carried out or finished simultaneously, and also can be respectively carried out in different time periods, and fixed time intervals are set among the time periods. The fixed time interval is determined by practical production experience in the field.
In step S7, when irrigating a high-terrain plot, the telescopic part 112 of the sprinkler irrigation equipment 11 extends out of the main body 111; when irrigating a land with moderate topography, the telescopic part 112 of the sprinkler irrigation equipment 11 enters the main body part 111, and the first opening 113 is opposite to the second opening 114; when the plots with lower terrain are irrigated, the telescopic part 112 of the sprinkling irrigation equipment 11 enters the main body part 111, and the first opening hole 113 is opposite to the second opening hole 114.
In step S7, when irrigating a plot with a high terrain, the sprinkling irrigation equipment 11 and the infiltrating irrigation equipment 12 work simultaneously; when irrigating plots with moderate topography, only the sprinkling irrigation equipment 11 works; when the plots with lower topography are irrigated, only the infiltrating irrigation equipment 12 works.
Moisture not only can migrate in soil inside, also can migrate on the soil top layer, and the general trend is from high to low, consequently, if the lower landmass of relief can assemble sufficient rivers, then need not spray again.
Although the invention has been described in detail with reference to specific embodiments and examples, it is to be understood that modifications and improvements may be made based on the invention. The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other variations and modifications which may occur to those skilled in the art without departing from the spirit and scope of the present invention are also within the scope of the present invention.
Claims (7)
1. A soil remediation humidity adjusting system comprises an irrigation device (1), an irrigation control valve (2), a flowmeter (3), a soil humidity sensor (4), a meteorological sensor (5), an irrigation control unit (6), an edge calculation server (7) and a multi-view vision mapping device (8);
the multi-view visual mapping device (8) is used for measuring the terrain information and dividing the soil into areas according to a set rule on one hand, and is used for capturing the growth information of the soil crops and feeding the growth information back to the irrigation control unit (6) on the other hand;
the irrigation control unit (6) comprises a crop irrigation model database, a crop historical growth information database, an irrigation parameter setting module, an irrigation control module, a humidity sensor interface, a meteorological sensor interface, a multi-view visual mapping device interface and a communication module;
the edge computing server (7) comprises an area dividing module and a growth analysis module;
the irrigation device (1) is characterized by comprising irrigation equipment (11), wherein the irrigation equipment (11) specifically comprises a main body part (111) and a telescopic part (112) capable of entering/extending out of the main body part, a plurality of first holes (113) with a first aperture phi 1 are distributed on the main body part (111) at equal intervals along the length direction, a plurality of second holes (114) are distributed on the telescopic part (112) at equal intervals along the length direction, the apertures of the second holes (114) are sequentially increased from one end, close to the main body part (111), of the telescopic part (112) to the free end of the telescopic part (112), and the smallest aperture in the second holes (114) is phi 1;
the irrigation device (1) further comprises an infiltration irrigation device (12) inserted into the ground, wherein the infiltration irrigation device (12) is cylindrical, a plurality of groups of infiltration irrigation windows (121) are formed in the side wall of the infiltration irrigation device, each group of infiltration irrigation windows (121) comprises a long strip-shaped infiltration irrigation opening (122) and a plurality of infiltration irrigation holes (123) which are positioned below the long strip-shaped infiltration irrigation opening (122) and are symmetrical along the central axis of the long strip-shaped infiltration irrigation opening (122); the central axes of any two groups of the filtration irrigation windows (121) are not coincident.
2. Soil remediation moisture conditioning system according to claim 1, wherein the telescoping section (112) is further rotatable relative to the main body section (111), and wherein the free end of the telescoping section (112) is provided with a sealing cap (115), and wherein the end of the telescoping section (112) adjacent to the main body section (111) is provided with a limiting sealing plug (116).
3. A method of conditioning moisture for use in the soil remediation moisture conditioning system of any one of claims 1 to 2, comprising the steps of:
s1: determining the terrain information through the multi-view visual mapping device (8) and capturing the soil crop growth information;
s2: the edge calculation server (7) sets a soil area division rule according to the information fed back by the multi-view visual mapping device (8), and determines the variety, growth and growth stage of crops;
s3: dynamically dividing regions of the soil to be irrigated by the multi-view visual mapping device (8), wherein each region comprises a plurality of continuous plots with different terrain heights;
s4: arranging a plurality of groups of soil humidity sensors (4) with different lengths at a measuring position, and measuring the soil humidity by a resonance frequency shift method;
s5: measuring the current atmospheric temperature, humidity, wind direction and air pressure through the meteorological sensor (5), and predicting the meteorological condition in the future 48 hours;
s6: the irrigation control unit (6) integrates the related contents of an irrigation model database and a crop historical growth data database according to the analysis result fed back by the edge calculation server (7), the zoning condition fed back by the multi-view vision mapping device (8) and the sensing result fed back by the soil humidity sensor (4) and the meteorological sensor (5) and sets irrigation parameters;
s7: the irrigation control unit (6) sets different irrigation plans for different plots in the same area;
s8: the irrigation control unit (6) controls the irrigation device (1) to irrigate the target land parcel according to the irrigation parameters and plan;
s9: after the irrigation is stopped, measuring whether the humidity of the specified depth of the soil reaches a set threshold value again after a preset time;
s10: if the humidity of the specified depth of the soil does not reach the set threshold value, a secondary irrigation plan is made according to the humidity information of the current specified depth of the soil and irrigation is carried out;
s11: after irrigation is finished, information such as current soil humidity information, irrigation quantity, irrigation times, irrigation time, crop growth, current meteorological conditions, meteorological conditions in the past 48 hours and the like is fed back to the irrigation model database to correct an irrigation plan.
4. A humidity control method according to claim 3, wherein the step S4 specifically comprises:
s41: connecting a first humidity sensor group (41) consisting of two probes with a first length in parallel with a first resonant circuit with a first composite impedance value to form a first measuring loop so as to measure the surface humidity of the soil;
s42: connecting a second humidity sensor group (42) consisting of two probes having a second length in parallel with a second resonant circuit having a first complex impedance value to form a second measurement loop to measure soil humidity at a first depth;
s43: connecting a third humidity sensor group (43) consisting of two probes with a third length in parallel with a third resonant circuit with a first complex impedance value to form a third measuring loop for measuring the soil humidity at a second depth;
s44: connecting a fourth humidity sensor group (44) consisting of two probes having a fourth length in parallel with a fourth resonant circuit having the first complex impedance value to form a fourth measurement loop for measuring soil humidity at a third depth;
s45: respectively providing first alternating current to a first measurement loop, a second measurement loop, a third measurement loop and a fourth measurement loop through an oscillator to respectively obtain a first resonant frequency, a second resonant frequency, a third resonant frequency and a fourth resonant frequency;
s46: and taking the first resonance frequency as a first input end signal, and respectively taking the second resonance frequency, the third resonance frequency and the fourth resonance frequency as a second input end signal, and sequentially passing through a multiplier, a low-pass filter and a comparator to respectively obtain the relative humidity of the soil at different depths.
5. The humidity control method according to claim 4, wherein in step S7, the irrigation amount is set to Q1, the irrigation time is set to T1, the irrigation amount is set to Q2, the irrigation time is set to T2, the irrigation amount is set to Q3, and the irrigation time is set to T3 for a plot with a medium topography, wherein Q1> Q2> Q3, and T1> T2> T3, for a plot with a high topography in the same area.
6. A humidity control method according to claim 5, wherein in step S7, when irrigating a high-lying land, the telescopic part (112) of the sprinkler irrigation apparatus (11) is extended out of the main body part (111); when the land with moderate terrain is irrigated, the telescopic part (112) of the sprinkling irrigation equipment (11) enters the main body part (111), and the first opening (113) is opposite to the second opening (114); when the plots with lower terrain are irrigated, the telescopic parts (112) of the sprinkling irrigation equipment (11) enter the main body part (111), and the first open holes (113) and the second open holes (114) are back to back.
7. A humidity control method as claimed in claim 6, characterized in that in step S7, the sprinkling irrigation equipment (11) and the infiltrating irrigation equipment (12) are operated simultaneously when irrigating the land areas with high terrain; when the land plots with moderate terrain are irrigated, only the sprinkling irrigation equipment (11) works; when the plots with lower topography are irrigated, only the filtration irrigation equipment (12) works.
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