CN206523465U - A kind of humidity sensor and dust humidity detection system based on feedback compensation - Google Patents
A kind of humidity sensor and dust humidity detection system based on feedback compensation Download PDFInfo
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- CN206523465U CN206523465U CN201621189170.XU CN201621189170U CN206523465U CN 206523465 U CN206523465 U CN 206523465U CN 201621189170 U CN201621189170 U CN 201621189170U CN 206523465 U CN206523465 U CN 206523465U
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- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
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Abstract
The utility model discloses in the above-mentioned technical solutions, the utility model provides a kind of humidity sensor based on feedback compensation, including analog switch, parallel pin, water content detection chip and main controller, has the beneficial effect that：Detecting electrode need not be all connected with by making the circuit of measurement soil moisture content and soil salt content, simple in construction, and the power consumption of equipment detection reduces, and reduces production cost to a certain extent, realized time-sharing multiplex parallel pin and carried out salt content, water content detection；The influence that soil salt content is detected to soil moisture content is considered, it is higher to make finally to measure obtained result (soil moisture content) accuracy, truly reflects the humidity of soil, plantation foundation is provided for people.A kind of soil moisture detecting system, because above-mentioned humidity sensor has above-mentioned technique effect, the detecting system comprising the humidity sensor is should also have corresponding technique effect.
Description
Technical field
The utility model is related to soil moisture detection field, and in particular to a kind of humidity sensor based on feedback compensation and
Dust humidity detection system.
Background technology
The growth of soil nutrient degree and plant has close relationship, and the factor of influence soil nutrient degree has：Moisture, solubility
Salinity, the content of organic matter, available nutrient, soil texture and structure and porosity etc., wherein moisture, soluble organic fraction are to plant growth
Influence it is especially prominent, if the amount of this two kinds of nutrients is not enough, it is easy to cause Plant death or withered.
With the progress of science and technology, planting technology has also obtained significant progress, main still with the warp of plant personnel
Test judgement to be defined, carry out the supplement of moisture or salinity to soil according to plantation experience, but there is subjectivity after all in artificial judgement
With it is error, the death rate of plant still remains high.In this context, moisture, salinity detection technique are arisen at the historic moment, by this
A little technical staff can carry out the judgement of science to amount of water, salt adding amount etc..
In the prior art, used extensively by everybody by way of standing wave ratio testing soil moisture, the program is logical
Cross in one group of parallel pin insertion soil, and launch into soil the signal of certain frequency, due to the parallel pin in insertion soil with
The impedance mismatch of transmission line, produces standing wave, the impedance in soil is tested out by testing standing wave ratio, Jie of soil is equivalent to
Electric constant, you can obtain the moisture of soil.Patent document such as Application No. CN201410445644.1 discloses one kind
Soil moisture content based on bifrequency alternative excitation and conductivity detection method and detection means, including it is host computer, single-chip microcomputer, double
Frequency sine exiting signal generating circuit, soil moisture content detection control circuit, soil moisture content detection control circuit perform machine
Structure, soil moisture content detecting electrode, soil moisture content detection circuit, soil conductivity detecting electrode, soil conductivity detection electricity
Road and A/D change-over circuits.
It is in place of the deficiencies in the prior art, connection inspection is intended on the circuit of measurement soil moisture content and soil salt content
Electrode is surveyed, causes overall structure more complicated, the power consumption of equipment detection is larger, and adds somewhat to production cost；
The influence that soil salt content is detected to soil moisture content is not accounted for, causes finally to measure obtained result (soil moisture content) by mistake
Difference is larger, it is impossible to the humidity of true reflection soil, and plant growth is adversely affected.
Utility model content
The purpose of this utility model is to provide a kind of humidity sensor based on feedback compensation, to solve complicated, work(
The larger, cost of consumption is high, do not consider the problem of soil salt content is to soil moisture content factor.
To achieve these goals, the utility model provides following technical scheme：
A kind of humidity sensor based on feedback compensation, including：Parallel pin, main controller, water content detection chip and mould
Intend switch,
The parallel pin is connected with the analog switch, and the pulse signal to be sent according to the main controller carries out soil
Salt content is detected；
The analog switch, after soil salt content detection is completed, to switch to the water content detection circuit；
The water content detection chip is connected with the analog switch, to carry out soil moisture content detection；
The main controller is connected with the analog switch, to be fed back according to the soil salt content generation first measured
Information, and the soil moisture content measured is corrected according to first feedback information.
Above-mentioned humidity sensor, the parallel pin is the identical and arranged in parallel metal electrode bar of two structures, two
The polarity of the individual metal electrode bar is inconsistent.
Offered on above-mentioned humidity sensor, the parallel pin in mating hole, the mating hole and be placed with temperature sensor,
The temperature sensor is fixedly connected with the mating hole.
Above-mentioned humidity sensor, the temperature sensor is connected with the main controller, to be detected to the soil moisture,
Second feedback information is generated according to the soil moisture that measures, and according to second feedback information to the soil saliferous that measures
Amount is corrected.
Above-mentioned humidity sensor, the analog switch, also after being corrected by first feedback information, to switch back into
The circuit detected to soil salt content.
Above-mentioned humidity sensor, the frequency of the pulse signal is 1KHZ, to measure soil electricity by the parallel pin
Conductance.
Above-mentioned humidity sensor, the main controller obtains the soil salt content according to the Conductivity Calculation.
Above-mentioned humidity sensor, the water content detection chip includes signal generator and standing wave ratio detection circuit,
The signal generator is connected with the analog switch, to send the side that frequency is 133MHZ to the parallel pin
Ripple signal, forms standing wave；
The standing wave ratio detection circuit is connected with the analog switch, the standing wave to detect standing wave on the parallel pin
Rate.
Above-mentioned humidity sensor, the main controller calculates according to the standing wave ratio and obtains the soil moisture content.
A kind of soil moisture detecting system, including the humidity sensor based on feedback compensation.
In the above-mentioned technical solutions, the utility model provides a kind of humidity sensor based on feedback compensation, including simulation
Switch, parallel pin, water content detection chip and main controller, realize that soil salt content is examined by the cooperation of main controller and parallel pin
Survey；Pass through analog switch switching circuit；The detection of soil moisture content is realized by the cooperation of parallel pin and water content detection chip；
Soil salt content is converted to by the first feedback information by main controller, then the first feedback information is used as to the benefit to soil moisture content
Repay；Detecting electrode need not be all connected with by making the circuit of measurement soil moisture content and soil salt content, simple in construction, equipment detection
Power consumption reduces, and reduces production cost to a certain extent, realizes time-sharing multiplex parallel pin and carries out salt content, water content inspection
Survey；The influence that soil salt content is detected to soil moisture content is considered, makes finally to measure obtained result (soil moisture content) essence
Exactness is higher, truly reflects the humidity of soil, and plantation foundation is provided for people.
In the above-mentioned technical solutions, the utility model also provides a kind of soil moisture detecting system, because above-mentioned humidity is passed
Sensor has above-mentioned technique effect, and the detecting system comprising the humidity sensor is should also have corresponding technique effect.
Brief description of the drawings
, below will be to institute in embodiment in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only described in the utility model
Some embodiments, for those of ordinary skill in the art, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation for the humidity sensor that Fig. 1 provides for the utility model embodiment；
The cut-away drawing for the humidity sensor that Fig. 2 provides for the preferred embodiment of the utility model one；
The structural representation for the humidity sensor that Fig. 3 provides for the utility model further embodiment；
The structural representation for the humidity sensor that Fig. 4 provides for the utility model further embodiment；
The structural representation for the humidity sensor that Fig. 5 provides for the utility model further embodiment.
Description of reference numerals：
10th, main controller；20th, analog switch；30th, water content detection chip；301st, standing wave ratio detection circuit；302nd, signal is sent out
Raw device；40th, parallel pin；50th, temperature sensor.
Embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with accompanying drawing pair
The utility model is further detailed.
The structural representation and Fig. 2 for the humidity sensor that Fig. 1 provides for the utility model embodiment are the utility model one
The cut-away drawing for the humidity sensor that preferred embodiment is provided.
The humidity sensor based on feedback compensation in the present embodiment, including：Parallel pin 40, main controller 10, water content inspection
Chip 30 and analog switch 20 are surveyed, the parallel pin 40 is connected with the analog switch 20, to according to the main controller 10
The pulse signal sent carries out soil salt content detection；The analog switch 20, after soil salt content detection is completed, to cut
Shift to the moisture content detection circuit；The water content detection chip 30 is connected with the analog switch 20, to carry out soil
Water content is detected；The main controller 10 is connected with the analog switch 20, to according to the soil salt content generation measured
First feedback information, and the soil moisture content measured is corrected according to first feedback information.Specifically, pulse
Signal is to send with certain frequency, the instantaneous signal in cycle, is sent by main controller 10, to make parallel pin 40 enter saliferous
Measure detection state.Soil salt content be soil in salt content, salt amount number be soil fertility embodiment, Ke Yiju
This judges the growth of certain whether suitable plant of soil；The detection of salt content is real by parallel pin 40 and the cooperation of detection chip
It is existing.Soil moisture content is the content of the moisture in soil, and the growth of any plant is required for water, therefore, moisture number can be straight
Connect reflect plant growing environment it is whether favourable, hypohydration is unfavorable for plant growth；The detection of water content is by parallel
What the cooperation of pin 40 and water content detection chip 30 was realized.First feedback information is that the feedback compensated to soil moisture content is mended
Information is repaid, by soil salt content passes through the calculating of main controller 10, is specially：Soil salt content is substituted into salt content demarcation public
Formula, calculates and obtains the first feedback information；Soil moisture content is compensated by the first feedback information, more accurate soil is obtained
Salt content；The detection of salt on soil water content in soil, which has, compares large effect, it is therefore desirable to carry out salt content compensation.It is real
Border is in use, parallel pin 40 is inserted in soil, and parallel pin 40 receives pulse signal, completes the detection to soil salt content：
Electrical conductivity is detected, and soil salt content is obtained by controller computing according to electrical conductivity, the storage of the main controller 10 is reached
Preserved in unit.Water content detection circuit is switched to again, coordinates parallel pin 40 to complete the detection of soil moisture content：Main controller 10 is sent out
Go out trigger signal, water content detection chip 30 is entered working condition, square-wave signal is sent by water content detection chip 30,
Standing wave is formed on parallel pin 40, and standing wave ratio is detected by water content detection chip 30, passes through the standing wave ratio mark in main controller 10
Determine formula, calculate to obtain and such as allow water content, the memory cell for reaching the main controller 10 is preserved.It is logical finally according to soil salt content
Cross controller computing and obtain the first feedback information, soil moisture content is corrected according to the first feedback information, obtain accuracy relatively
High soil moisture content, is exported as final testing result.
Further, the analog switch 20, also after being corrected by first feedback information, to switch back into soil
The circuit that earth salt content is detected；Complete to automatically switch back into the circuit for detecting soil salt content after detection, it is ensured that next
During secondary detection, directly detected, it is not necessary to artificial to reset.
It is preferred that, the frequency of the pulse signal is 1KHZ, to measure soil conductivity by the parallel pin 40；It is right
Soil salt content is detected as：Pulse signal is sent by controller, parallel pin 40 is entered working condition, coordinates pulse letter
Number realize detection to soil conductivity.
Further, the main controller 10 obtains the soil salt content according to the Conductivity Calculation；Detection is obtained
Soil conductivity reach main controller 10, electrical conductivity is substituted into and is pre-stored within electrical conductivity calibration formula therein by main controller 10,
Calculate and obtain soil salt content；Realize the detection of soil salt content.
Further, the output acquaintance of the moisture in soil can be the equipment such as display, player, allow personnel can be with
Accordingly judge add water, the amount of salt.
Further, the parallel pin 40 is the identical and arranged in parallel metal electrode bar of two structures, two institutes
The polarity for stating metal electrode bar is inconsistent.It is so designed that and is easy to calculate, makes the detection algorithm of soil moisture content easy enough.
Those skilled in the art is it is to be appreciated that the chip model of main controller 10 is:DA14580.
Those skilled in the art is it is to be understood that as shown in Fig. 2 U7 is analog switch, its chip signal is：
te3usb30e。
In the above-mentioned technical solutions, the utility model provides a kind of humidity sensor based on feedback compensation, including simulation
Switch 20, parallel pin 40, water content detection chip 30 and main controller 10, are realized by the cooperation of main controller 10 and parallel pin 40
Soil salt content is detected；Pass through the switching circuit of analog switch 20；It is real by the cooperation of parallel pin 40 and water content detection chip 30
The detection of existing soil moisture content；Soil salt content is converted to by the first feedback information by main controller 10, then by the first feedback letter
Breath is used as the compensation to soil moisture content；Detection electricity need not be all connected with by making the circuit of measurement soil moisture content and soil salt content
Pole, simple in construction, the power consumption of equipment detection reduces, and reduces production cost to a certain extent, realizes time-sharing multiplex and puts down
The hand-manipulating of needle 40 carries out salt content, water content detection；The influence that soil salt content is detected to soil moisture content is considered, makes final measurement
Obtained result (soil moisture content) accuracy is higher, truly reflects the humidity of soil, and plantation foundation is provided for people.
The structural representation for the humidity sensor that Fig. 3 provides for the preferred embodiment of the utility model one.
The humidity sensor based on feedback compensation in the present embodiment, including：Parallel pin 40, main controller 10, water content inspection
Chip 30 and analog switch 20 are surveyed, the parallel pin 40 is connected with the analog switch 20, to according to the main controller 10
The pulse signal sent carries out soil salt content detection；The analog switch 20, after soil salt content detection is completed, to cut
Shift to the moisture content detection circuit；The water content detection chip 30 is connected with the analog switch 20, to carry out soil
Water content is detected；The main controller 10 is connected with the analog switch 20, to according to the soil salt content generation measured
First feedback information, and the soil moisture content measured is corrected according to first feedback information.It is used as this implementation
It is preferred in example, offered on the parallel pin 40 and temperature sensor 50, the temperature are placed with mating hole, the mating hole
Sensor 50 is fixedly connected with the mating hole；The temperature sensor 50 is connected with the main controller 10, to soil temperature
Degree is detected, the second feedback information is generated according to the soil moisture measured, and according to second feedback information to surveying
The soil salt content obtained is corrected.Specifically, temperature sensor 50 is fixed in the hole on parallel pin 40, making for use is miniature
Temperature sensor 50, can so guarantee in implantation mating hole；And mating hole is arranged at one that parallel pin 40 is contacted with soil
End, it is ensured that temperature detection can be carried out to soil internal environment；The mode that mating hole is fixedly connected with temperature sensor 50 can be with
For：Can be welded in inside mating hole or by existing by clamping apparatus clamping, by fastening device snapping
Other modes in technology are fixedly connected.The temperature for acting as detecting environment in soil of temperature sensor 50, and should
Temperature sends main controller 10 to, and calculating conversion by main controller 10 obtains the second feedback information, by the second feedback information to electricity
The soil salt content that road detection is obtained is compensated, and obtains high precision soil salt content；Second feedback information is used as feedback compensation
Signal makes the detection of soil salt content more accurate, so as to further increase the detection accuracy of soil moisture content.
The structural representation for the humidity sensor that Fig. 4 provides for the utility model further embodiment.
The humidity sensor based on feedback compensation in the present embodiment, including：Parallel pin 40, main controller 10, water content inspection
Chip 30 and analog switch 20 are surveyed, the parallel pin 40 is connected with the analog switch 20, to according to the main controller 10
The pulse signal sent carries out soil salt content detection；The analog switch 20, after soil salt content detection is completed, to cut
Shift to the moisture content detection circuit；The water content detection chip 30 is connected with the analog switch 20, to carry out soil
Water content is detected；The main controller 10 is connected with the analog switch 20, to according to the soil salt content generation measured
First feedback information, and the soil moisture content measured is corrected according to first feedback information.It is used as this implementation
Preferred in example, the water content detection chip 30 includes signal generator 302 and standing wave ratio detection circuit 301, the signal
Generator 302 is connected with the analog switch 20, to send the square-wave signal that frequency is 133MHZ, shape to the parallel pin 40
Into standing wave；The standing wave ratio detection circuit 301 is connected with the analog switch 20, to detect standing wave on the parallel pin 40
Standing wave ratio；Further, the main controller 10 calculates according to the standing wave ratio and obtains the soil moisture content.Specifically, working as mould
When plan switch 20 switches to water content detection circuit, main controller 10 sends trigger signal, standing wave ratio is detected circuit 301 and signal
Generator 302 enters working condition, and 133MHZ square-wave signal is sent by signal generator 302, is formed on parallel pin 40
Standing wave, and detect that circuit 301 detects the standing wave ratio of the standing wave formed on parallel pin 40 by standing wave ratio, by main controller 10
Standing wave ratio calibration formula, calculates and obtains soil dielectric constant, is calculated further according to dielectric constant and obtains volume soil moisture content, according to
Soil moisture content and the soil volume being pre-stored within controller calculate and obtain soil moisture content, and reach the main controller
10 memory cell is preserved.
It should be understood by those skilled in the art that as shown in Fig. 2 U8 is signal generator 302, its chip signal is
DS1088C-BGA, its characteristic is to send high-frequency signal；U11 is that standing wave ratio detects circuit 301, and its chip model is
LMH2121TMX, its characteristic is low-power consumption, and detection range is wide.
The structural representation for the soil moisture detecting system that Fig. 5 provides for the utility model embodiment.
A kind of soil moisture detecting system, including the humidity sensor based on feedback compensation.
The humidity sensor based on feedback compensation includes：Parallel pin 40, main controller 10, water content detection chip 30,
Analog switch 20 and temperature sensor 50,
The parallel pin 40 is connected with the analog switch 20, and the pulse signal to be sent according to the main controller 10 enters
Row soil salt content is detected；
The temperature sensor 50 is connected with the main controller 10, to be detected to the soil moisture, according to what is measured
The soil moisture generates the second feedback information, and carries out school to the soil salt content measured according to second feedback information
Just；
The analog switch 20, after correction soil salt content is completed, to switch to the water content detection circuit；
The water content detection chip 30 is connected with the analog switch 20, to carry out soil moisture content detection；
The main controller 10 is connected with the analog switch 20, to according to the soil salt content generation first measured
Feedback information, and the soil moisture content measured is corrected according to first feedback information.
The water content detection chip 30 includes：Signal generator 302 and standing wave ratio detection circuit 301, the signal hair
Raw device 302 is connected with the analog switch 20, to send the square-wave signal that frequency is 133MHZ to the parallel pin 40, is formed
Standing wave；
The standing wave ratio detection circuit 301 is connected with the analog switch 20, to detect standing wave on the parallel pin 40
Standing wave ratio；The main controller 10 obtains the soil moisture content according to the Conductivity Calculation.
In the above-mentioned technical solutions there is provided a kind of soil moisture detecting system, due to above-mentioned humidity sensor have it is above-mentioned
Technique effect, the detecting system comprising the humidity sensor is should also have corresponding technique effect.
Some one exemplary embodiments of the present utility model are only described by way of explanation above, undoubtedly, for
One of ordinary skill in the art, can be with a variety of in the case of without departing from spirit and scope of the present utility model
Mode is modified to described embodiment.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as
Limitation to the utility model claims.
Claims (10)
1. a kind of humidity sensor based on feedback compensation, it is characterised in that including：Parallel pin, main controller, water content detection core
Piece and analog switch,
The parallel pin is connected with the analog switch, and the pulse signal to be sent according to the main controller carries out soil saliferous
Amount detection；
The analog switch, after soil salt content detection is completed, to switch to the water content detection chip；
The water content detection chip is connected with the analog switch, to carry out soil moisture content detection；
The main controller is connected with the analog switch, to generate the first feedback letter according to the soil salt content measured
Breath, and the soil moisture content measured is corrected according to first feedback information.
2. humidity sensor according to claim 1, it is characterised in that the parallel pin is that two structures are identical and mutual
The metal electrode bar be arrangeding in parallel, the polarity of two metal electrode bars is inconsistent.
3. humidity sensor according to claim 1, it is characterised in that mating hole is offered on the parallel pin, described
Temperature sensor is placed with mating hole, the temperature sensor is fixedly connected with the mating hole.
4. humidity sensor according to claim 3, it is characterised in that the temperature sensor connects with the main controller
Connect, to be detected to the soil moisture, the second feedback information is generated according to the soil moisture that measures, and according to described the
Two feedback informations are corrected to the soil salt content measured.
5. humidity sensor according to claim 1, it is characterised in that the analog switch, also to by described
After the correction of first feedback information, the circuit detected to soil salt content is switched back into.
6. humidity sensor according to claim 1, it is characterised in that the frequency of the pulse signal is 1KHZ, is used to
Soil conductivity is measured by the parallel pin.
7. humidity sensor according to claim 6, it is characterised in that the main controller is obtained according to the Conductivity Calculation
Obtain the soil salt content.
8. humidity sensor according to claim 1, it is characterised in that the water content detection chip includes signal
Device and standing wave ratio detection circuit,
The signal generator is connected with the analog switch, is believed to send the square wave that frequency is 133MHZ to the parallel pin
Number, form standing wave；
The standing wave ratio detection circuit is connected with the analog switch, the standing wave ratio to detect standing wave on the parallel pin.
9. humidity sensor according to claim 8, it is characterised in that the main controller is calculated according to the standing wave ratio and obtained
Obtain the soil moisture content.
10. a kind of soil moisture detecting system, it is characterised in that including the humidity sensor described in claim 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621189170.XU CN206523465U (en) | 2016-11-04 | 2016-11-04 | A kind of humidity sensor and dust humidity detection system based on feedback compensation |
| PCT/CN2016/110968 WO2018082159A1 (en) | 2016-11-04 | 2016-12-20 | Feedback compensation-based humidity sensor and humidity detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621189170.XU CN206523465U (en) | 2016-11-04 | 2016-11-04 | A kind of humidity sensor and dust humidity detection system based on feedback compensation |
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| CN206523465U true CN206523465U (en) | 2017-09-26 |
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| CN201621189170.XU Active CN206523465U (en) | 2016-11-04 | 2016-11-04 | A kind of humidity sensor and dust humidity detection system based on feedback compensation |
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| CN (1) | CN206523465U (en) |
| WO (1) | WO2018082159A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398540A (en) * | 2018-01-31 | 2018-08-14 | 昆明大蚯蚓科技有限公司 | Processing method and processing device for soil surveying index |
| CN114609199A (en) * | 2020-12-09 | 2022-06-10 | 上海硕物天成信息科技有限公司 | System and method for measuring moisture content of soil |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351917A (en) * | 2018-12-24 | 2020-06-30 | 广州交投工程检测有限公司 | Quick detection device of moisture content |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002953346A0 (en) * | 2002-12-16 | 2003-01-09 | Sentek Pty Ltd | Soil matric potential and salinity measurement apparatus and method of use |
| CN100514049C (en) * | 2007-02-14 | 2009-07-15 | 中国科学院南京土壤研究所 | Original position soil salt content sensing transducer |
| CN102997964B (en) * | 2012-12-07 | 2015-01-28 | 西北农林科技大学 | Soil multiparameter sensing measurement system |
| CN203191329U (en) * | 2013-04-12 | 2013-09-11 | 武汉大学 | Time domain reflector probe for monitoring water and salt in high-salt-content soil |
| CN205484177U (en) * | 2016-03-02 | 2016-08-17 | 北京小米移动软件有限公司 | Soil parameters measuring device |
| CN105717278B (en) * | 2016-04-14 | 2018-02-13 | 中国科学院半导体研究所 | A kind of soil salt cooling-water temperature sensor |
-
2016
- 2016-11-04 CN CN201621189170.XU patent/CN206523465U/en active Active
- 2016-12-20 WO PCT/CN2016/110968 patent/WO2018082159A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398540A (en) * | 2018-01-31 | 2018-08-14 | 昆明大蚯蚓科技有限公司 | Processing method and processing device for soil surveying index |
| CN108398540B (en) * | 2018-01-31 | 2024-02-13 | 昆明大蚯蚓科技有限公司 | Method and device for processing soil measurement index |
| CN114609199A (en) * | 2020-12-09 | 2022-06-10 | 上海硕物天成信息科技有限公司 | System and method for measuring moisture content of soil |
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| WO2018082159A1 (en) | 2018-05-11 |
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