CN106053330A - Soil compactness and moisture composite measuring method and device - Google Patents
Soil compactness and moisture composite measuring method and device Download PDFInfo
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- CN106053330A CN106053330A CN201610345195.2A CN201610345195A CN106053330A CN 106053330 A CN106053330 A CN 106053330A CN 201610345195 A CN201610345195 A CN 201610345195A CN 106053330 A CN106053330 A CN 106053330A
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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
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Abstract
The invention relates to a soil compactness and moisture composite measuring method and device. The method comprises the following steps: obtaining the acceleration and pressure of a probe during the process that the probe is inserted into soil to be tested; subjecting the acceleration and pressure to a noise removing treatment; analyzing the acceleration and pressure after the noise removing treatment so as to determine the measuring result of soil compactness; and based on a volumetric soil water content model, according to the compactness measuring result, converting the soil moisture into volumetric water content under standard soil compactness. The provided method is more universal for measuring the soil compactness. The measurement error due to uneven inserting speed of probe is avoided. The soil compactness can be measured more precisely. The measuring error of volumetric soil water content caused by different compactness of soil can be avoided. The volumetric soil water content can be measured more precisely. The research on agricultural production, forest breeding, and ecological and environmental monitoring is well assisted by the provided method.
Description
Technical field
The present invention relates to Forest soil detection field, particularly relate to a kind of soil density and moisture combined measurement method and
Device.
Background technology
Soil because having fertility, green plants can be grown and become the basis that agriculture and forestry produce, the degree of packing in soil
And moisture content directly affects the growth promoter of plant.Soil density is the important parameter in Soil structure, by Soil Anti shearing,
Compression stress and frictional force etc. collectively form.The natural cause such as flood, arid and heavy-duty machinery and other tillage control measures etc. are artificial
Factor all can make soil density change, thus affects the situation of liquid manure gas heat in the soil environment that plant depends on for existence,
And then growth and the yield of crops of plant can be affected.The big I of soil density affects the growth of crop root, permissible
For evaluating soil tilth.The excessively soil of consolidation can stop infiltrating of moisture, affects plant root growth, reduces the profit of chemical fertilizer
By rate, thus cause crop failure.Growth promoter and the soil density of plant are all used material impact, soil by soil moisture content
Water content is too much or very few all can generation the normal growth of plant is coerced.
But, inside forest, fallen leaves accumulate and rot throughout the year, and in forest, ecosystem complexity is various in addition, cause forest zone soil
Earth composition complexity.Prior art is being measured during the Forest soil degree of packing, measure probe when inserting soil often due to
Non-at the uniform velocity insertion causes the result measured bigger error occur.The American Society of Agricultural Engineers ASAE regulation degree of packing is visited when measuring
The speed that pin inserts is 0.03m/s, and the pressure now recorded can be used for characterizing soil density.
Being a quick process owing to probe inserts, hand-held soil density instrument is difficult to accurately ensure in actual use
This speed, thus the downward power that is subject to of measured probe some for producing acceleration, so based on the method
Measurement can produce bigger error.Further, measurement for volumetric soil water content before does not all account for soil compaction
The impact of degree, but actually the volumetric water content of soil and the consolidation degree of soil have substantial connection, the degree of packing of soil increases
Conference causes the soil density in unit volume to increase, and then causes the change of unit soil internal water, therefore, does not consider soil
The degree of packing and directly measure the volumetric water content of soil and actually exist bigger error.
Summary of the invention
For existing soil density instrument owing to being difficult to accurately ensure the speed that probe inserts in actual use, thus lead
Cause to produce the defect of bigger measurement error and existing soil moisture content measure during ignore soil density impact and
Causing the defect of volumetric soil water content measurement error, the present invention proposes following technical scheme:
A kind of soil density and moisture combined measurement method, including:
Obtain probe acceleration in inserting soil course to be measured and pressure experienced；
Described acceleration and described pressure are carried out denoising；
Based on Newton's second law and balance between two forces method, described acceleration and the described pressure through denoising is carried out
Analyze, determine the degree of packing measurement result of described soil to be measured with the result according to described analysis；
Obtain described probe and insert the moisture of described soil to be measured；
Based on the volumetric soil water content model under the standard degree of packing, according to described degree of packing measurement result by described to be measured
The moisture of soil is scaled volumetric water content nominally.
Alternatively, described acquisition probe in the acceleration inserted in soil course to be measured and pressure experienced, including:
During described probe inserts described soil to be measured, the acceleration of described probe is carried out between predeterminated frequency
Every measurement, to obtain the acceleration discrete values reflecting the change of described probe acceleration；
Described probe pressure experienced is carried out the interval measurement of predeterminated frequency, reflects the change of described probe pressure to obtain
Pressure discrete values.
Alternatively, described described acceleration and described pressure are carried out denoising, including:
Use amplitude limit average filter method that described acceleration and described pressure are carried out denoising, inclined to eliminate sampled value
Difference.
Alternatively, described based on Newton's second law with balance between two forces method, to through denoising described acceleration and
Described pressure is analyzed, and determines the degree of packing measurement result of described soil to be measured with the result according to described analysis, including:
Based on Newton's second law, according to the numerical value of the described acceleration through denoising and described in recording in advance
The quality of probe determines the numerical value of the power for producing described acceleration；
Based on balance between two forces method, according to the numerical value of the described pressure through denoising and described add described in producing
The numerical value of the power of speed, is equivalent at the uniform velocity process, by discrete by the non-at the uniform velocity process that described probe inserts described soil to be measured
Integral algorithm determines effective consolidation power of described soil to be measured, with by consolidation that described effective consolidation masterpiece is described soil to be measured
Degree measurement result.
Alternatively, the described probe of described acquisition inserts the moisture of soil to be measured, including:
Based on standing-wave ratio method, use signal source and the coaxial transmission line of blocked impedance of 100M, bimetallic ring electrode is surveyed
The voltage signal that amount obtains processes, and obtains the analog voltage signal of moisture content corresponding to described soil to be measured, with by described
Analog voltage signal is as the moisture measurement result of described soil to be measured.
Alternatively, described based on the volumetric soil water content model under the standard degree of packing, in conjunction with obtain measured by above-mentioned
Described soil moisture is scaled volumetric water content nominally by soil density, including:
The moisture measurement result of described soil to be measured is carried out Treatment Analysis, obtains the volume of aqueous of described soil to be measured
Rate；
Described degree of packing measurement result and described moisture measurement result are substituted into the pass of soil density and volumetric water content
It is model, to obtain the volumetric soil water content under the standard soil degree of packing.
A kind of soil density and moisture duplex measurement device, including:
Acceleration and pressure acquiring unit, and be subject at the acceleration that inserts in soil course to be measured for obtaining probe
Pressure；
Denoising unit, for carrying out denoising to described acceleration and described pressure；
Degree of packing measuring unit, for based on Newton's second law and balance between two forces method, to through described in denoising
Acceleration and described pressure are analyzed, and determine that with the result according to described analysis the degree of packing of described soil to be measured measures knot
Really；
Moisture acquiring unit, inserts the moisture of described soil to be measured for obtaining described probe；
Volumetric water content measuring unit, for based on the volumetric soil water content model under the standard degree of packing, according to described
The moisture of described soil to be measured is scaled volumetric water content nominally by degree of packing measurement result.
Alternatively, described acceleration and pressure acquiring unit, it is further used for:
During described probe inserts described soil to be measured, the acceleration of described probe is carried out between predeterminated frequency
Every measurement, to obtain the acceleration discrete values reflecting the change of described probe acceleration；And,
During described probe inserts described soil to be measured, described probe pressure experienced is carried out predeterminated frequency
Interval measurement, to obtain the pressure discrete values reflecting the change of described probe pressure.
Alternatively, described denoising unit, it is further used for:
Use amplitude limit average filter method that described acceleration and described pressure are carried out denoising, inclined to eliminate sampled value
Difference.
Alternatively, described degree of packing measuring unit, it is further used for:
Based on Newton's second law, according to the numerical value of the described acceleration through denoising and described in recording in advance
The quality of probe determines the numerical value of the power for producing described acceleration；
Based on balance between two forces method, according to the numerical value of the described pressure through denoising and described add described in producing
The numerical value of the power of speed, is equivalent at the uniform velocity process, by discrete by the non-at the uniform velocity process that described probe inserts described soil to be measured
Integral algorithm determines effective consolidation power of described soil to be measured, with by consolidation that described effective consolidation masterpiece is described soil to be measured
Degree measurement result.
Alternatively, described moisture acquiring unit, it is further used for:
Based on standing-wave ratio method, use signal source and the coaxial transmission line of blocked impedance of 100M, bimetallic ring electrode is surveyed
The voltage signal that amount obtains processes, and obtains the analog voltage signal of moisture content corresponding to described soil to be measured, with by described
Analog voltage signal is as the moisture measurement result of described soil to be measured.
Alternatively, described volumetric water content measuring unit, it is further used for:
The moisture measurement result of described soil to be measured is carried out Treatment Analysis, obtains the volume of aqueous of described soil to be measured
Rate；And,
Described degree of packing measurement result and described moisture measurement result are substituted into the pass of soil density and volumetric water content
It is model, to obtain the volumetric soil water content under the standard soil degree of packing.
Soil density that the present invention provides and moisture combined measurement method and device are tight compared to the soil of prior art
Solidity and moisture combined measurement method, for the measurement more universality of soil density, it is possible to that avoids due to probe is non-even
The measurement error that speed is inserted and produced, can be measured Soil compaction more accurately, be contained with volume by soil density
Water rate model can convert the volumetric soil water content obtained under the standard degree of packing, can avoid owing to Soil compaction is different
The error that the volumetric soil water content caused is measured, and then measure volumetric soil water content more accurately, and then be that agricultural is raw
The research of product, stand tending and ECOLOGICAL ENVIRONMENTAL MONITORING lays the foundation.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
These accompanying drawings obtain other accompanying drawing.
Fig. 1 is soil density and the schematic flow sheet of moisture combined measurement method of one embodiment of the invention；
Fig. 2 is the stream carrying out denoising in the soil density of one embodiment of the invention and moisture combined measurement method
Journey schematic diagram；
Fig. 3 is to carry out equivalence in the soil density of one embodiment of the invention and moisture combined measurement method at the uniform velocity to process
Schematic flow sheet；
Fig. 4 is soil density and the structural representation of moisture duplex measurement device of one embodiment of the invention；
Fig. 5 is soil density and the structural representation of moisture duplex measurement system of one embodiment of the invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of embodiment rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
Make the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Fig. 1 is soil density and the schematic flow sheet of moisture combined measurement method of one embodiment of the invention；Such as Fig. 1
Shown in, the method includes:
S1: obtain probe acceleration in inserting soil course to be measured and pressure experienced；
S2: described acceleration and described pressure are carried out denoising；
S3: based on Newton's second law and balance between two forces method, to through the described acceleration of denoising and described pressure
It is analyzed, determines the degree of packing measurement result of described soil to be measured with the result according to described analysis；
S4: obtain described probe and insert the moisture of described soil to be measured；
S5: based on the volumetric soil water content model under the standard degree of packing, according to described degree of packing measurement result by described
The moisture of soil to be measured is scaled volumetric water content nominally.
The soil density of the present embodiment and moisture combined measurement method, compared to soil density and the water of prior art
Point combined measurement method, for the measurement more universality of soil density, it is possible to avoid non-at the uniform velocity insertion the due to probe and
The measurement error produced, can measure Soil compaction more accurately, by soil density and volumetric water content model
Can be converted the volumetric soil water content obtained under the standard degree of packing, can avoid the soil caused due to Soil compaction difference
The error that earth volumetric water content is measured, and then measure volumetric soil water content more accurately, and then comfort for agricultural production, forest
Educate and the research of ECOLOGICAL ENVIRONMENTAL MONITORING lays the foundation.
Preferred as the present embodiment, obtains probe acceleration in inserting soil course to be measured and is subject in step S1
Pressure, can farther include:
S11: during described probe inserts described soil to be measured, the acceleration of described probe is carried out predeterminated frequency
Interval measurement, with obtain reflect described probe acceleration change acceleration discrete values；
S12: described probe pressure experienced carries out the interval measurement of predeterminated frequency, reflects described probe pressure to obtain
The pressure discrete values of change.
Preferred as the present embodiment, carries out denoising to described acceleration and described pressure in step S2, can enter one
Step includes:
Use amplitude limit average filter method that described acceleration and described pressure are carried out denoising, inclined to eliminate sampled value
Difference.
Specifically, Fig. 2 is carried out in showing the soil density of one embodiment of the invention and moisture combined measurement method
The flow process of denoising.As in figure 2 it is shown, use amplitude limit average filter method, N number of for continuous print sampled value is regarded as a queue length
It is fixed as N, samples a new data every time and put into tail of the queue, determine the maximum deflection difference value (being set to A) that double sampling allows, if
This sub-value is less than or equal to A with the difference of upper sub-value, then this sub-value is effective, if the difference of this sub-value and upper sub-value is more than A, then this sub-value
Invalid, abandon this sub-value, replace this sub-value by sub-value, and throw away a sampled data of head of the queue, the N number of data in queue
Carrying out arithmetic mean computing, obtaining new filter result N is worth choosing, and uses amplitude limit average filter method for the arteries and veins accidentally occurred
Punching property is disturbed, and can eliminate the sampled value deviation caused by impulse disturbances.
A following several method is had about discrete signal denoising:
Average value filtering is typical linear filter method, and it is conceived to this sampling period.In a sampling period,
Signal is done m sampling, and it is taken arithmetic average, export as the wave filter in this sampling period.Average value filtering pair
Periodic jamming signals has good inhibitory action, but can produce certain delay, and this delay needs the number of times m of sampling with filtering
It is directly proportional.M value depends on the requirement to smoothness and sensitivity.M increases, and smoothness increases, and sensitivity is lowered.
Medium filtering is typical non-linear filtering method, for filtering accidental impulse disturbances, frequently with medium filtering.In
Continuous m the sampled value of signal is ranked up by value filtering, takes its intermediate value and exports as the filtering in this sampling period.M is more
Big filter effect is the best, but postpones to increase.Medium filtering has good filter effect to the impulse disturbances of gradual process.
Vienna filters a kind of adaptive wave filter, and its basic thought is that signal exports with under certain constraints
With the difference of a desired output square minimum optiaml ciriterion.Wiener filtering adaptive surface is relatively wide, and no matter stationary random process is
Continuous print or discrete, is scalar or vector, all can apply.But cannot be used for the random mistake that noise is non-stationary
The situation of journey, also inconvenient for vector situation application.Therefore, Wiener filtering is applied seldom in practical problem.
Wavelet Denoising Method has good localization property in time domain and frequency domain simultaneously, and the wavelet coefficient of signal is with the increasing of yardstick
Increasing greatly, the wavelet conversion coefficient of noise reduces with the increase of yardstick.Therefore, it can set a threshold value, utilize this threshold value
According to certain rule, wavelet coefficient is carried out adjusting thresholds.Wavelet coefficients at different levels after adjusting thresholds are reconstructed, obtain
Signal after de-noising.Due to the randomness of noise signal strength, and signal and the propagation characteristic of noise during wavelet decomposition
Difference, the threshold value that each layer of coefficient of wavelet decomposition is used should be to change with the change of wavelet coefficient.Therefore, threshold value
Choose be denoising effect quality key.
Owing to the method for above-mentioned several existing sampling denoisings all exists that speed is slow, chosen by threshold value and affect bigger etc. lacking
Point, therefore, the characteristic in conjunction with soil density and moisture duplex measurement uses amplitude limit average filter method.
Fig. 3 is to carry out equivalence in the soil density of one embodiment of the invention and moisture combined measurement method at the uniform velocity to process
Schematic flow sheet；As it is shown on figure 3, preferred as above-described embodiment, step S3 is put down based on Newton's second law and two power
Weighing apparatus method, is analyzed described acceleration and the described pressure through denoising, determines institute with the result according to described analysis
State the degree of packing measurement result of soil to be measured, can farther include:
S31: based on Newton's second law, according to the numerical value of the described acceleration through denoising and records in advance
The quality of described probe determines the numerical value of the power for producing described acceleration；
S32: based on balance between two forces method, according to the numerical value of the described pressure through denoising and described for producing
State the numerical value of the power of acceleration, the non-at the uniform velocity process that described probe inserts described soil to be measured is equivalent at the uniform velocity process, passes through
Discrete integration algorithm determines effective consolidation power of described soil to be measured, being described soil to be measured by described effective consolidation masterpiece
Degree of packing measurement result.
Specifically, based on balance between two forces method, probe is executed by downward power F that probe applies during insertion more than soil
The counteracting force Fn added, and then the acceleration a produced, downward power F includes pressure F1 that people is applied on probe and probe
Gravity G, power Fn then reflects the degree of packing of soil, balance between two forces method understand the F that makes a concerted effort of power F1 and G, a part be used for
Disappear counteracting force Fn, and another part is used for producing acceleration a, and the quality of probe is m, then the power producing acceleration is Fa=m*a,
Then Fn=F1-Fa+G；Being known by balance between two forces method, if probe does linear uniform motion and enters soil, probe is subject to during insertion
To downward power Fx, then the counteracting force N=G+Fx that probe is applied by soil, because the soil density of same point is constant, institute
With N=Fn, then there is Fx=F1-Fa, therefore can be calculated by pressure F and the acceleration a that measurement is applied on probe
Power Fx, and then the process inserting a probe into soil is equivalent at the uniform velocity process.Because when probe at the uniform velocity inserts soil due to soil
Consolidation is different is N, N=Fn to the counteracting force varied in size produced by probe, it is possible to be calculated by F1 and a
Fx, and then obtain N (i.e. Fn), the size of Fn has reacted the consolidation degree of soil, obtains soil by processing Fn discrete integration
Effectively consolidation power Fs, it is achieved measurement and the quantization to soil density.
The soil density measuring method of the present embodiment, is equivalent at the uniform velocity by the non-at the uniform velocity process inserting a probe into soil
Process, and then realize measurement to soil density, compared to art methods, for measurement pervasive of soil density
Property higher, can be prevented effectively from owing to Forest soil constitutes the complicated and measurement that causes non-at the uniform velocity insertion of probe and produce by mistake
Difference, the degree of accuracy measuring Soil compaction is higher.Can be converted with volumetric water content model by soil density and be marked
Volumetric soil water content under the quasi-degree of packing, can avoid the volumetric soil water content caused due to Soil compaction difference to survey
The error of amount, and then measure volumetric soil water content more accurately.
Fig. 4 is soil density and the structural representation of moisture duplex measurement device of one embodiment of the invention；Such as Fig. 4
Shown in, this device includes acceleration and pressure acquiring unit 10, denoising unit 20, degree of packing measuring unit 30, moisture acquisition list
Unit 40 and volumetric water content measuring unit 50；
Wherein, acceleration and pressure acquiring unit 10 for obtain probe acceleration in inserting soil course to be measured and
Pressure experienced；
Denoising unit 20 is for carrying out denoising to described acceleration and described pressure；
Degree of packing measuring unit 30 is for based on Newton's second law and balance between two forces method, to through described in denoising
Acceleration and described pressure are analyzed, and determine that with the result according to described analysis the degree of packing of described soil to be measured measures knot
Really；
Moisture acquiring unit 40, inserts the moisture of described soil to be measured for obtaining described probe；
Volumetric water content measuring unit 50, for based on the volumetric soil water content model under the standard degree of packing, according to institute
State degree of packing measurement result and the moisture of described soil to be measured is scaled volumetric water content nominally.
Soil density and moisture duplex measurement device described in the present embodiment may be used for performing said method embodiment,
Its principle is similar with technique effect, and here is omitted.
Preferred as the present embodiment, acceleration and pressure acquiring unit 10 can also be further used for:
During described probe inserts described soil to be measured, the acceleration of described probe is carried out between predeterminated frequency
Every measurement, to obtain the acceleration discrete values reflecting the change of described probe acceleration；And,
During described probe inserts described soil to be measured, described probe pressure experienced is carried out predeterminated frequency
Interval measurement, to obtain the pressure discrete values reflecting the change of described probe pressure.
Preferred as the present embodiment, denoising unit 20 can also be further used for:
Use amplitude limit average filter method that described acceleration and described pressure are carried out denoising, inclined to eliminate sampled value
Difference.
Preferred as the present embodiment, degree of packing measuring unit 30 can also be further used for:
Based on Newton's second law, according to the numerical value of the described acceleration through denoising and described in recording in advance
The quality of probe determines the numerical value of the power for producing described acceleration；
Based on balance between two forces method, according to the numerical value of the described pressure through denoising and described add described in producing
The numerical value of the power of speed, is equivalent at the uniform velocity process, by discrete by the non-at the uniform velocity process that described probe inserts described soil to be measured
Integral algorithm determines effective consolidation power of described soil to be measured, with by consolidation that described effective consolidation masterpiece is described soil to be measured
Degree measurement result.
Preferred as the present embodiment, moisture acquiring unit 40, can be further used for:
Based on standing-wave ratio method, use signal source and the coaxial transmission line of blocked impedance of 100M, bimetallic ring electrode is surveyed
The voltage signal that amount obtains processes, and obtains the analog voltage signal of moisture content corresponding to described soil to be measured, with by described
Analog voltage signal is as the moisture measurement result of described soil to be measured.
Preferred as the present embodiment, volumetric water content measuring unit 50 can also be further used for:
The moisture measurement result of described soil to be measured is carried out Treatment Analysis, obtains the volume of aqueous of described soil to be measured
Rate；And,
Described degree of packing measurement result and described moisture measurement result are substituted into the pass of soil density and volumetric water content
It is model, to obtain the volumetric soil water content under the standard soil degree of packing.
Soil density and moisture duplex measurement device described in the present embodiment may be used for performing said method embodiment,
Its principle is similar with technique effect, and here is omitted.
It should be noted that for device embodiment, due to itself and embodiment of the method basic simlarity, so describe
Fairly simple, relevant part sees the part of embodiment of the method and illustrates.
With a specific embodiment, the present invention is described below, but does not limit protection scope of the present invention.
Fig. 5 is soil density and the structural representation of moisture duplex measurement system of one embodiment of the invention.Such as Fig. 5
Shown in, this system includes:
Degree of packing detector unit 100, is used for utilizing acceleration module 110 and modular pressure 120 to measure probe and is inserting soil
Acceleration signal during earth and pressure signal, to utilize acceleration and pressure to realize the detection of the degree of packing；
Temperature detecting unit 200, for measuring the temperature of soil；
Water content detection unit 300, for measuring the volumetric water content of soil；
GPS positioning unit 400, the positional information of the soil density obtained measured by position and altitude information；
LCD MODULE 500, for combining the forest zone stereomodel that temperature, moisture, position and the degree of packing are drawn
Figure carries out figure and shows, and shows the relational model between the degree of packing and temperature, moisture and position, for system
Operational order shows；
Serial ports download unit 600, transmits with corresponding data for communicating with host computer；
Volumetric water content measuring unit 700, is used for combining soil density and Soil moisture, by soil density and
Volumetric soil water content model, is calculated the volumetric soil water content under the standard soil degree of packing；
Master control processing unit 800, calculates for carrying out the data obtained processing, and controls the communication of data with aobvious
Show.
Further, this master control processing unit 800 can also include denoising unit 810, computing unit 820 and data mould
Type unit 830 (not shown)；
Wherein, denoising unit 810 is for carrying out denoising to measured acceleration signal and pressure signal, and removal is made an uproar
The interference of sound point.
Computing unit 820, for based on the signal after denoising, uses Newton's second law and balance between two forces method, comprehensively accelerates
Degree and pressure insert a probe into process and are equivalent at the uniform velocity process, carry out discrete integration and calculate soil effective consolidation power, it is achieved
Measurement to soil compaction.
Data model unit 830 is used for combining temperature, moisture, position and the degree of packing and sets up stereomodel, and sets up consolidation
Relation curve model between degree and temperature, moisture and position.
A kind of Forest soil degree of packing equivalence at the uniform velocity measuring method of embodiment of the present invention offer and the system of measurement, mainly lead to
Cross and insert a probe into the non-at the uniform velocity process of soil and be equivalent at the uniform velocity process, and then realize the measurement to soil density, be followed successively by
Degree of being accelerated and pressure measxurement, carry out temperature survey, carry out moisture measurement, gps position measurement, carry out denoising, based on
The equivalence of Newton's second law and balance between two forces method at the uniform velocity processes, discrete integration asks effective consolidation power, nominally soil mass
Long-pending moisture content calculates, and the foundation of stereomodel and relation curve shows, thus compared to art methods, for soil compaction
The measurement of degree has universality, can be prevented effectively from and cause non-at the uniform velocity insertion of probe to be produced owing to Forest soil constitutes complicated
Raw measurement error, can measure Soil compaction more accurately；Can by soil density and volumetric water content model
Obtain the volumetric soil water content under the standard degree of packing with conversion, the soil caused due to Soil compaction difference can be avoided
The error that volumetric water content is measured, and then measure volumetric soil water content more accurately, and then be agricultural production, stand tending
And the research of ECOLOGICAL ENVIRONMENTAL MONITORING lays the foundation.
Above example is merely to illustrate technical scheme, is not intended to limit；Although with reference to previous embodiment
The present invention is described in detail, it will be understood by those within the art that: it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent；And these are revised or replace
Change, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (12)
1. a soil density and moisture combined measurement method, it is characterised in that including:
Obtain probe acceleration in inserting soil course to be measured and pressure experienced；
Described acceleration and described pressure are carried out denoising；
Based on Newton's second law and balance between two forces method, carry out point through the described acceleration of denoising and described pressure
Analysis, determines the degree of packing measurement result of described soil to be measured with the result according to described analysis；
Obtain described probe and insert the moisture of described soil to be measured；
Based on the volumetric soil water content model under the standard degree of packing, according to described degree of packing measurement result by described soil to be measured
Moisture be scaled volumetric water content nominally.
Method the most according to claim 1, it is characterised in that described acquisition probe adding in inserting soil course to be measured
Speed and pressure experienced, including:
Inserting during described soil to be measured at described probe, the interval that the acceleration of described probe carries out predeterminated frequency is surveyed
Amount, to obtain the acceleration discrete values reflecting the change of described probe acceleration；
Described probe pressure experienced is carried out the interval measurement of predeterminated frequency, to obtain the pressure reflecting the change of described probe pressure
Power discrete values.
Method the most according to claim 1, it is characterised in that described described acceleration and described pressure are carried out at denoising
Reason, including:
Amplitude limit average filter method is used described acceleration and described pressure to be carried out denoising, to eliminate sampled value deviation.
Method the most according to claim 1, it is characterised in that described based on Newton's second law with balance between two forces method, to warp
Described acceleration and the described pressure of crossing denoising are analyzed, and determine described soil to be measured with the result according to described analysis
Degree of packing measurement result, including:
Based on Newton's second law, according to the numerical value of the described acceleration through denoising and the described probe that records in advance
Quality determine the numerical value of the power for producing described acceleration；
Based on balance between two forces method, according to the numerical value of the described pressure through denoising and described for producing described acceleration
The numerical value of power, the non-at the uniform velocity process that described probe inserts described soil to be measured is equivalent at the uniform velocity process, passes through discrete integration
Algorithm determines effective consolidation power of described soil to be measured, the degree of packing that described effective consolidation masterpiece is described soil to be measured to be surveyed
Amount result.
Method the most according to claim 1, it is characterised in that the described probe of described acquisition inserts the moisture of soil to be measured, bag
Include:
Based on standing-wave ratio method, use signal source and the coaxial transmission line of blocked impedance of 100M, bimetallic ring electrode measurement is obtained
The voltage signal taken processes, and obtains the analog voltage signal of moisture content corresponding to described soil to be measured, with by described simulation
Voltage signal is as the moisture measurement result of described soil to be measured.
Method the most according to claim 5, it is characterised in that described based on the volumetric soil water content mould under the standard degree of packing
Type, is scaled volumetric water content nominally in conjunction with the soil density obtained measured by above-mentioned by described soil moisture,
Including:
The moisture measurement result of described soil to be measured is carried out Treatment Analysis, obtains the volumetric water content of described soil to be measured；
Described degree of packing measurement result and described moisture measurement result are substituted into the relation mould of soil density and volumetric water content
Type, to obtain the volumetric soil water content under the standard soil degree of packing.
7. a soil density and moisture duplex measurement device, it is characterised in that including:
Acceleration and pressure acquiring unit, for obtaining probe acceleration in inserting soil course to be measured and the pressure being subject to
Power；
Denoising unit, for carrying out denoising to described acceleration and described pressure；
Degree of packing measuring unit, for based on Newton's second law and balance between two forces method, to the described acceleration through denoising
Degree and described pressure are analyzed, and determine the degree of packing measurement result of described soil to be measured with the result according to described analysis；
Moisture acquiring unit, inserts the moisture of described soil to be measured for obtaining described probe；
Volumetric water content measuring unit, for based on the volumetric soil water content model under the standard degree of packing, according to described consolidation
The moisture of described soil to be measured is scaled volumetric water content nominally by degree measurement result.
Device the most according to claim 7, it is characterised in that described acceleration and pressure acquiring unit, is further used for:
Inserting during described soil to be measured at described probe, the interval that the acceleration of described probe carries out predeterminated frequency is surveyed
Amount, to obtain the acceleration discrete values reflecting the change of described probe acceleration；And,
During described probe inserts described soil to be measured, described probe pressure experienced is carried out the interval of predeterminated frequency
Measure, to obtain the pressure discrete values reflecting the change of described probe pressure.
Device the most according to claim 7, it is characterised in that described denoising unit, is further used for:
Amplitude limit average filter method is used described acceleration and described pressure to be carried out denoising, to eliminate sampled value deviation.
The most according to claim 7, device, it is characterised in that described degree of packing measuring unit, be further used for:
Based on Newton's second law, according to the numerical value of the described acceleration through denoising and the described probe that records in advance
Quality determine the numerical value of the power for producing described acceleration；
Based on balance between two forces method, according to the numerical value of the described pressure through denoising and described for producing described acceleration
The numerical value of power, the non-at the uniform velocity process that described probe inserts described soil to be measured is equivalent at the uniform velocity process, passes through discrete integration
Algorithm determines effective consolidation power of described soil to be measured, the degree of packing that described effective consolidation masterpiece is described soil to be measured to be surveyed
Amount result.
11. devices according to claim 7, it is characterised in that described moisture acquiring unit, are further used for:
Based on standing-wave ratio method, use signal source and the coaxial transmission line of blocked impedance of 100M, bimetallic ring electrode measurement is obtained
The voltage signal taken processes, and obtains the analog voltage signal of moisture content corresponding to described soil to be measured, with by described simulation
Voltage signal is as the moisture measurement result of described soil to be measured.
12. devices according to claim 7, it is characterised in that described volumetric water content measuring unit, are further used for:
The moisture measurement result of described soil to be measured is carried out Treatment Analysis, obtains the volumetric water content of described soil to be measured；With
And,
Described degree of packing measurement result and described moisture measurement result are substituted into the relation mould of soil density and volumetric water content
Type, to obtain the volumetric soil water content under the standard soil degree of packing.
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| US11946747B2 (en) | 2020-10-09 | 2024-04-02 | Deere & Company | Crop constituent map generation and control system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2758741Y (en) * | 2004-12-24 | 2006-02-15 | 中国农业大学 | Synchronous realtime measurer for soil section conic index and water ratio |
| CN1811415A (en) * | 2005-07-19 | 2006-08-02 | 中国农业大学 | Airborn walking soil moisture and compactedness synchronous real-time measurement sensor |
| CN204000818U (en) * | 2014-07-02 | 2014-12-10 | 四川农业大学 | A kind of soil compactibility determinator |
-
2016
- 2016-05-23 CN CN201610345195.2A patent/CN106053330B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2758741Y (en) * | 2004-12-24 | 2006-02-15 | 中国农业大学 | Synchronous realtime measurer for soil section conic index and water ratio |
| CN1811415A (en) * | 2005-07-19 | 2006-08-02 | 中国农业大学 | Airborn walking soil moisture and compactedness synchronous real-time measurement sensor |
| CN204000818U (en) * | 2014-07-02 | 2014-12-10 | 四川农业大学 | A kind of soil compactibility determinator |
Non-Patent Citations (3)
| Title |
|---|
| 彭曾愉: "土壤含水率及紧实度复合传感器的研究与开发", 《中国优秀硕士学位论文全文数据库 农业科技辑》 * |
| 朱兆龙 等: "一种土壤剖面水分与坚实度同步测量装置", 《江苏大学学报(自然科学版)》 * |
| 邵玲 等: "农田土壤含水率与坚实度快速信息采集系统", 《农机化研究》 * |
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