CN207649664U - The automatic soil erosion monitoring device in field - Google Patents
The automatic soil erosion monitoring device in field Download PDFInfo
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- CN207649664U CN207649664U CN201721505488.9U CN201721505488U CN207649664U CN 207649664 U CN207649664 U CN 207649664U CN 201721505488 U CN201721505488 U CN 201721505488U CN 207649664 U CN207649664 U CN 207649664U
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Abstract
The utility model is related to a kind of automatic soil erosion monitoring devices in field, solve the problems such as existing soil erosion monitoring apparatus function is single, data precision is poor.Technical solution includes holder, the holder includes vertically disposed main support rod, equipment platform at the top of main support rod, horizontal homogeneous is mounted on 4 secondary supporting rods of equipment platform circumference, it is described pair supporting rod be equipped at least one probe vertical under to ultrasonic range finder, the equipment platform is equipped with infrared ray rainfall/raininess sensor, Big Dipper data transmission module, microcontroller, and the accumulator for above equipment power supply；The ultrasonic range finder, infrared ray rainfall/raininess sensor and Big Dipper data transmission module are connect with microcontroller.Utility model device is simple in structure, service life is long, full-featured, and the utility model method can effectively reject untrue data caused by production stream, and field soil erosion monitoring accuracy is high, can be judged and be calculated automatically.
Description
Technical field
The utility model is related to a kind of field monitoring equipment, specifically a kind of automatic soil erosion monitoring dress in field
It sets.
Background technology
The variation of the normal topsoil thickness of the soil erosion, erosion and the accumulation that soil is shown as on single monitoring site are existing
As thickness of soil variation monitoring is an important content of water and soil conservation value.
Conventional method and new method can be divided into for the assay method of thickness of soil variation at present, conventional method is mainly wrapped
Include plug in pricker method and runoff observation on plots method, it is that plug in pricker is inserted perpendicularly into soil layer to plug in pricker method, read expose native face length variation with
The method for calculating thickness of soil variation, this method takes time and effort, measurement error is larger；Runoff observation on plots method is enclosed to native face
The silt that is swept away with runoff is simultaneously collected on weir, then the average erosion thickness in face that must be unearthed by quantity of sand and mud divided by cofferdam area side
Method, this method applicable surface is narrow, and artificial observation error is big, and precision is relatively low, is suitable for soil loss monitoring and is unsuitable for soil
Corrode observation.Novel technical method includes stereoscopic rangefinding method, single-point telemetry, Remote Sensing Interpretation, photoelectricity measurement ruler method, indirect method etc.,
New technology is limited to of high cost, complicated for operation mostly, thus is difficult to promote.
If stereoscopic rangefinding method, single-point telemetry may be collectively referred to as telemetry, difference lies in distance-measuring equipment type and point distance measurements
Quantity, telemetry high certainty of measurement, but complicated for operation, cost is compared with high, post-processing difficulty is big, and domestic and international telemetry at present
Measurement error caused by slope runoff when not solving rainfall.
Stereoscopic rangefinding method mainly utilizes 3 D laser scanning and oblique photograph measuring technique, periodically reads terrain data,
According to topography variation amount calculate soil erosion amount, as patent (CN201010143941.2) to such method carried out simplify and
Standardization improve, but still have the shortcomings that it is of high cost, complicated for operation, need later stage special disposal.Single-point telemetry, which is similar to, inserts
The principle of pricker is based on laser ranging and ultrasonic ranging principle using single-point ranging, and the soil erosion thickness for obtaining representative point becomes
Change, and then calculate monitoring surface soil erosion change, if patent (CN201210063867.2) utilizes laser distance measuring principle, to list
Point ranging is improved, and multiple spot soil erosion change situation is obtained using rotatable laser range finder,
Remote Sensing Interpretation is the method for carrying out soil erosion estimation using the image and combined ground altitude data of large scale,
As patent (CN201511023717.9) is defined and improves to this method, but Remote Sensing Interpretation precision is relatively low, is applicable in
In large scale water and soil conservation value, have little significance for the monitoring of high-precision zonule.Photoelectricity measurement ruler method is using by photocell
PV quantity is no less than the photovoltaic cell arrays composition measurement ruler of 1 piece of linear array, directly reads thickness of soil changing value, such as patent
(CN200920191369.X) a kind of photoelectricity measurement ruler for soil erosion observation is disclosed, this method is limited to energy supply feelings
Condition, service life, photoelectricity measurement ruler reading accuracy and automation issues, it is difficult to be used under the conditions of bad environments in the wild.Indirect method
It is to utilize other methods for calculating soil erosion situation with the relevant data of the soil erosion, synthesis, such as patent in measurement soil
(CN201620224908.5) acquisitions and the relevant temperature of the soil erosion such as photoelectric sensor, humidity temperature pickup are then mainly utilized
The data such as degree, humidity, and then it is converted into soil erosion amount, the unstability that this method measures is very big, and it is extremely difficult error occur
Correction is unsuitable for the laying of large area complex environment.
To sum up, following condition need to be had by laying the automatic soil erosion monitoring equipment in field：1, has self energy supply item
Part；2, cost is relatively low；3, service life is long；4, monitoring accuracy height it is higher, 5, it is full-featured.Due to the normal position of soil erosion monitoring point
In the field of bad environments, while management condition is low, and communication environment is poor, is not advised greatly on soil erosion monitoring both at home and abroad at present
Mould lays unattended automated monitor.
On the other hand, production stream is the water layer that earth's surface is covered in after rainfall, at this time according to stadia surveying when, measure
Numerical value is then the truthful data of water layer data above rather than soil surface, therefore the generation for producing after rainfall stream can direct shadow
The real reliability of sound monitoring data, when monitoring device corrodes monitoring for field soil, production is flowed to the accuracy of data
It influences to be always to need to overcome the problems, such as, the main reason is that there are water level error after (1) production stream caused by rainfall occurs in ground,
Monitoring device can not carry out automatic discrimination, cause the data measured untrue；(2) rainfall is not meant to be bound to produce
Stream, rainfall and production are flowed and there is no necessarily relationships, and geological conditions is different, and the condition that production stream occurs also differs, therefore nothing
Method judges whether production stream generates by simply judging the presence or absence of rainfall, further results in the untrue of monitoring data.It is at present
Only there are no good methods to solve above-mentioned technical problem.
Invention content
Purpose of the utility model is to solve above-mentioned technical problem, provide it is a kind of it is simple in structure, have self energy supply,
Service life is long, precision is high, the automatic soil erosion monitoring device in full-featured field.
Technical solution includes holder, and the holder includes vertically disposed main support rod, setting at the top of main support rod
Standby platform, horizontal homogeneous are mounted on 4 secondary supporting rods of equipment platform circumference, and the pair supporting rod is equipped at least one probe
Under vertical to ultrasonic range finder, the equipment platform is equipped with infrared ray rainfall/raininess sensor, Big Dipper data transmission mould
Block, microcontroller, and the accumulator for above equipment power supply；The ultrasonic range finder, infrared ray rainfall/raininess sensor and
Big Dipper data transmission module is connect with microcontroller.
Inclination/burglar alarm the module being connect with microcontroller, temperature/moisture measurement sensing are additionally provided on the equipment platform
Device and GPS/ Beidou positioning modules.
The solar powered plate to charge for the accumulator is additionally provided on the equipment platform.
The hypomere of the main support rod is embedded to below ground through anchoring piece.
The part of the main support rod embedment below ground is equipped with ground temperature/measurement of water ratio sensor.
It is equipped with protective cover above the ground temperature/measurement of water ratio sensor.
Air bubble type level meter is additionally provided on the equipment platform.
The problem of for background technology, inventor devise a kind of automatic soil erosion monitoring device in field, will
Multiple monitorings fill sensor integration on a holder, are analyzed each item data of acquisition, are stored using microcontroller, and led to
It crosses wireless transmission method and sends Background control terminal to.Ultrasonic range finder is with purchase cost is low, accuracy is high, is hardly damaged
The characteristics of, acquire soil altitude information for substituting photoelectricity measurement ruler, can be arranged on a holder it is multiple, with synchronous acquisition
Multipoint data increases the accuracy of data analysis；Infrared rainfall/raininess the sensor is mounted on equipment platform, for supervising
Measure rainfall/raininess data, and binding time can be analyzed to obtain rainfall duration, and acts on whether soil is in Rainfall-runoff state
One of Rule of judgment；The ground temperature/measurement of water ratio sensor is mounted on the part that main support rod directly enters below ground, preferably buries
Depth be 20 ± 2cm, for monitoring soil moisture content, can be used as soil whether be in Rainfall-runoff state Rule of judgment it
One.Otherwise it is whole to monitoring to send out alarm signal for monitoring whether holder is in plumbness for the inclination/burglar alarm module
End, temperature/humidity measuring transducer are used for monitoring of environmental temperature and humidity, and GPS/ Beidou positioning modules are positioned for equipment.By
It is all concentrated on a holder in above-mentioned each detection device, is not only easy to assembling production, convenient for centralized management, and each item data is adopted
Collect in range set, keeps the result that data analysis obtains more true and reliable.
The monitoring method of the automatic soil erosion monitoring device in the utility model field, includes the following steps：
When normal work, multiple ultrasonic range finders monitor in real time vertical range soil altitude information a, b, c ... ... m,
Infrared ray rainfall/raininess sensor monitors instantaneous raininess R in real time, and soil moisture content sensor monitors soil moisture content C in real time, on
State data be sent into microcontroller analysis preserve after through the Big Dipper data transmission module biography be wirelessly sent to control terminal, by control terminal
It is calculated as follows：
Formula 1：
Wherein, E tnThe soil erosion modulus at moment；tnIndicate a certain moment, an, bn, cn... ... mnIndicate several
Ultrasonic range finder is in tnThe reading value at moment；tn-1It indicates in the tnA upper record moment at moment, an-1, bn-1,
cn-1... ... mn-1Indicate several described ultrasonic range finders in tn-1The reading value at moment, ρ are soil density, and L is secondary supports
The length of bar, the m on denominator are the quantity of ultrasonic range finder.
When ambient enviroment has rain fall generation, following three parameters are monitored according to different soil conditions,
To judge whether production stream：
(1) under the conditions of clay：1. instantaneous raininess R >=30mm/h, 2. single rainfall duration tr>=30min, 3. soil quality
Moisture content C >=30%；
(2) under the conditions of loam：1. instantaneous raininess R >=35mm/h, 2. single rainfall duration tr>=30min, 3. soil quality
Moisture content C >=25%；
(3) under the conditions of sand：1. instantaneous raininess R >=40mm/h, 2. single rainfall duration tr>=40min, 3. soil quality
Moisture content C >=20%；
The trThe interval duration for being 0mm/h for the raininess instantaneous twice recorded before and after single rainfall；
Criterion is：When either condition meets in above three condition, then it is determined as having production to flow, control terminal
It is error amount, the calculating without soil erosion modulus E by the every data judging read at this time.
When three conditions are unsatisfactory for simultaneously, then it is determined as without production stream mode, control terminal is calculated as follows at this time：
Formula 2：
Wherein, E tqThe soil erosion modulus at moment；tiIndicate the critical moment for meeting three condition any one conditions
(critical before production stream)；tqIndicate the water-break moment (complete water-break after this time production stream) when three conditions are unsatisfactory for, ai, bi,
ci... ... miIndicate several ultrasonic range finders in tiThe reading value at moment；The aq, bq, cq... ... mqIndicate described several
A ultrasonic range finder is in tqThe reading value at moment, ρ are soil density, and L is the length of secondary supporting rod, and the m on denominator is ultrasound
The quantity of wave rangefinder.
Different geological conditions, production are flowed in order to eliminate as much as data error caused by production stream, inventor in monitoring process
The condition of generation conducts in-depth research, and creative proposing is monitored three conditions, be respectively infrared ray rainfall/
The instantaneous raininess R of raininess Sensor monitoring, the soil quality moisture content C and microcontroller of ground temperature/measurement of water ratio Sensor monitoring
The single rainfall duration t of recordr, applicants have found that, these three data and the generation of production stream are closely related, by above-mentioned
The analysis of three parameters, it can be determined that go out with the presence or absence of production stream.Further, due to geological conditions difference, the feelings of production stream generation
Condition also differs, and such as clay good water-retaining property, moisture content is higher to be not easy to hair production stream, but its water imbibition is bad in short-term, instantaneous raininess R
Production stream just easily occurs for >=30mm/h；And then good water absorption, instantaneous raininess R will not usually occur sand less than 40mm/h in short-term
Production stream, and its water-retaining property is bad, and production easily occurs once soil quality moisture content C >=20% once and flows etc., and therefore, inventor is into one
It walks and the condition of geological conditions different residing for device, generation production stream is conducted in-depth research, and criterion is carried out
Subdivision has formulated the disconnected standard of different judgements respectively for clay, loam and sand.When meeting the either condition in three conditions
When, then it is assumed that there is the possibility that production stream occurs in soil, the data in this period are then used as error information, do not substitute into formula and use
Make calculating soil erosion modulus.
Further, when three conditions are unsatisfactory for, then judge that production stream disappears, the data conduct of water-break moment record
Valid data can be made in substitution calculation formula, and the valid data of the critical moment record before being flowed with production due to the valid data are had
Time difference, then, control terminal is needed three conditions while water-break moment t when being unsatisfactory foriIt is arbitrary to subtract three conditions of satisfaction
Critical moment t before one conditionq, and all data being passed between two moment are then used as error to reject.
By above-mentioned monitoring method, can be very good to eliminate influence of the soil production stream to soil erosion monitoring data, effectively
Data error is avoided, the accuracy, reliability and authenticity of monitoring are improved, all analyses judge and calculate control eventually
End is automatically performed, and thoroughly solve data existing for the automatic soil erosion monitoring in existing field is influenced by production stream, and accuracy is not high
The problem of.
Utility model device design structure is simple, floor space is small, every sensor technology is ripe, water level Error subtraction scheme
Efficiently, easy to operate, low energy consumption, high degree of automation, accuracy are high, production is low with maintenance cost, service life is long, is suitable for
All kinds of environment under plane, slope surface state, in actual use equipment be suitable for the various gradients and long and narrow landform, for a long time use
Excellent accuracy can be kept, corrodes automatic monitoring especially suitable for field soil.The utility model method is simple, reliable, accurate
True property is high, and strong operability, extended capability is strong, and high degree of automation, scalable optimization space are big, before having preferable marketing
Scape.
Description of the drawings
Fig. 1 is utility model device structural schematic diagram.
Fig. 2 is the vertical view of equipment platform.
Fig. 3 is the data comparison figure tested under 1 four kinds of gradients.
Fig. 4 is the utility model device reading and photoelectricity measurement ruler comparative effectiveness figure in experiment 2.
Wherein, 1- main support rods, 2- equipment platforms, 3- pairs supporting rod, 4- ultrasonic range finders, 5- infrared rays rainfall/rain
Strong sensor, 6- temperature/humidity measuring transducer, 7- Big Dippeves data transmission module, 8- microcontrollers, 9- accumulators, 10- tilt/
Burglar alarm module, 11- anchoring pieces, 12-GPS/ Beidou positioning modules, the solar powered plates of 13-, 14- ground temperature/moisture content are surveyed
Quantity sensor, 15- protective covers, 16- air bubble types level meter, 17- control terminals, 18- slope surfaces.
Specific implementation mode
Explanation is further explained to utility model device below in conjunction with the accompanying drawings：
The holder of utility model device includes vertically disposed main support rod 1, and the equipment being located at the top of main support rod is flat
Platform 2, horizontal homogeneous are mounted on 4 secondary supporting rods 3 of equipment platform circumference, and the pair supporting rod 3 is equipped at least one probe and hangs down
Under straight to ultrasonic range finder 4 in addition to this, as needed can also be every in end set one in the present embodiment
A pair supporting rod 4 uniformly installs additional multiple；The hypomere of the main support rod 1 is embedded to below ground, below ground through anchoring piece 11
Part ground temperature/measurement of water ratio sensor 14 is installed, 14 top of the ground temperature/measurement of water ratio sensor is equipped with protective cover
15, prevent Infiltration water from directly causing to read bigger than normal containing ground temperature/measurement of water ratio sensor 14 along package of sunkening cord.
The equipment platform 2 is integrated with multiple sensors and equipment, including infrared ray rainfall/raininess sensor 5, temperature/
Humidity measuring transducer 6, Big Dipper data transmission module 7, microcontroller 8, GPS/ Beidou positioning modules 12, inclination/burglar alarm mould
Block 10 and the accumulator 9 powered for above equipment are solar powered plate 13 and air bubble type level that the accumulator charges
Instrument 16；The ultrasonic range finder 4, infrared ray rainfall/raininess sensor 5, temperature/humidity measuring transducer 6, the GPS/ Big Dippeves are fixed
Position module 12, inclination/burglar alarm module 10, ground temperature/measurement of water ratio sensor 14 (are purchased from the limited public affairs of the auspicious peak science and technology in Dalian
The SMTS-II-50 soil moisture sensors of department) and Big Dipper data transmission module 7 connect with microcontroller 8.
Infrared ray rainfall/raininess the sensor 5 is used to monitor the rainfall and raininess of ambient enviroment, is purchased from Beijing Hebei
The infrared rain sensor of the IRS202 models of Wen Kong Science and Technology Ltd.s production；
Temperature/the humidity measuring transducer 6 is used to monitor the gas mild temperature of ambient enviroment, is purchased from Guangzhou pine electricity difficult to understand
The AM2322 sensors of the model of sub- Co., Ltd's production；
The Big Dipper data transmission module 7 for will the data remote transmission from microcontroller 8 to control terminal, Big Dipper number
The FB3511 Big Dipper short message terminals of Fu great Big Dippeves Co., Ltd are purchased from according to transmission module 7；
GPS/ Beidou positioning modules 12 are purchased from Wuhan Meng Xin Science and Technology Ltd.s for being positioned to the equipment
MXT903 models；
Inclination/burglar alarm module 10 is used to monitor whether holder to have inclination or stolen, is purchased from Dongguan City lark electronics
The BL-3827 models of Co., Ltd；
The ultrasonic range finder 4 is purchased from the KS109 models that Shenzhen is oriented to mechanical ＆ electrical corporation.It also can be used as needed
Laser range sensor completely or partially substitutes ultrasonic range finder 4.
The microcontroller 8 to the various data of 17 remote transmission of control terminal and is led to by Big Dipper data transmission module 7
News.
Monitoring method includes the following steps：
When normal work, multiple ultrasonic range finders monitor in real time vertical range soil altitude information a, b, c ... ... m,
Infrared ray rainfall/raininess sensor monitors instantaneous raininess R in real time, and soil moisture content sensor monitors soil moisture content C in real time, on
State data be sent into microcontroller analysis preserve after through the Big Dipper data transmission module biography be wirelessly sent to control terminal, by control terminal
It is calculated as follows：
Formula 1：
Wherein, E tnThe soil erosion modulus at moment；tnIndicate a certain moment, an, bn, cn... ... mnIndicate several
Ultrasonic range finder is in tnThe reading value at moment；tn-1It indicates in the tnA upper record moment at moment, an-1, bn-1,
cn-1... ... mn-1Indicate several described ultrasonic range finders in tn-1The reading value at moment, ρ are soil density, and L is secondary supports
The length of bar, the m on denominator are the quantity of ultrasonic range finder.
When ambient enviroment has rain fall generation, following three parameters are monitored according to different soil conditions,
To judge whether production stream：
(1) under the conditions of clay：1. instantaneous raininess R >=30mm/h, 2. single rainfall duration tr>=30min, 3. soil quality
Moisture content C >=30%；
(2) under the conditions of loam：1. instantaneous raininess R >=35mm/h, 2. single rainfall duration tr>=30min, 3. soil quality
Moisture content C >=25%；
(3) under the conditions of sand：1. instantaneous raininess R >=40mm/h, 2. single rainfall duration tr>=40min, 3. soil quality
Moisture content C >=20%；
The trThe interval duration for being 0mm/h for the raininess instantaneous twice recorded before and after single rainfall；
Criterion is：When either condition meets in above three condition, then it is determined as having production to flow, control terminal
It is error amount, the calculating without soil erosion modulus E by the every data judging read at this time.
When three conditions are unsatisfactory for simultaneously, then it is determined as without production stream mode, control terminal is calculated as follows at this time：
Formula 2：
Wherein, E tqThe soil erosion modulus at moment；tiIndicate the critical moment for meeting three condition any one conditions
(critical before production stream)；tqIndicate the water-break moment (complete water-break after this time production stream) when three conditions are unsatisfactory for, ai, bi,
ci... ... miIndicate several ultrasonic range finders in tiThe reading value at moment；The aq, bq, cq... ... mqIndicate described several
A ultrasonic range finder is in tqThe reading value at moment, ρ are soil density, and L is the length of secondary supporting rod, and the m on denominator is ultrasound
The quantity of wave rangefinder.
Experiment 1：
In order to verify the accuracy of the utility model device monitoring, inventor has carried out following experiment：
1. according to requiring to be arranged vertically the utility model monitoring device, a band is placed under monitoring device and carves ruler fence
Flat car, by flat car be separately adjusted to angularly horizontal (0 °), 10 °, 20 °, 30 °, laser is used in combination in the utility model device reading
Rangefinder reads ultrasonic ranging head anomaly wooden handcart distance and is corrected；
2. maintaining flat car horizontality (0 °), uniformly dress is native on flat car, 0.5cm is loaded per secondary control, after installing
Screeding and compaction, and by flat car be separately adjusted to angularly horizontal (0 °), 10 °, 20 °, 30 °, carried out using the utility model monitoring device
Reading；
As a result see Fig. 3：Under 0 °, 10 °, 20 °, 30 ° of slopes, the Overall Standard Deviation difference of the utility model monitoring device monitoring
For 0.19cm, 0.21cm, 0.15cm, 0.27cm, measurement accuracy is within 0.3cm.
Experiment 2：
1. in order to verify rejecting effect of the utility model device to level land (0 °) ponding and shallow flow on slopes error, hair
A person of good sense has carried out following supplement experiment：
2 are maintaining flat car horizontality (0 °), and loam is uniformly filled on flat car, the filling 0.5cm soil per secondary control,
When filling soil high 3cm, 6cm, 9cm, 12cm, 0.5cm, 1cm, 0.5cm, 1cm depth are supplemented respectively using photoelectricity measurement ruler and water-level gauge
Ponding is detected reading after constant liquid level.
The utility model device is read sees that Fig. 4, photoelectricity staff reading overall error are 6.8cm with photoelectricity measurement ruler comparative effectiveness,
Mean error is 0.2cm, wherein 4 ponding errors are up to 49% to the contribution rate of overall error, the utility model device reading is total
Error sum of squares is 2.6cm, mean error 0.09cm.The utility model device is after rejecting ponding and sheet flow error amount
Precision significantly improves.
Claims (8)
1. a kind of automatic soil erosion monitoring device in field, including holder, it is characterised in that, the holder includes vertically disposed
Main support rod, the equipment platform being located at the top of main support rod, horizontal homogeneous are mounted on 4 secondary supporting rods of equipment platform circumference,
It is described pair supporting rod be equipped at least one probe vertical under to ultrasonic range finder, the equipment platform be equipped with infrared ray
Rainfall/raininess sensor, Big Dipper data transmission module, microcontroller, and the accumulator for above equipment power supply；The ultrasonic wave
Rangefinder, infrared ray rainfall/raininess sensor and Big Dipper data transmission module are connect with microcontroller.
2. the automatic soil erosion monitoring device in field as described in claim 1, which is characterized in that also set on the equipment platform
There are inclination/burglar alarm module, temperature/humidity measuring transducer and the GPS/ Beidou positioning modules being connect with microcontroller.
3. the automatic soil erosion monitoring device in field as described in claim 1, which is characterized in that also set on the equipment platform
The solar powered plate of the promising accumulator charging.
4. the automatic soil erosion monitoring device in field as described in any one of claims 1-3, which is characterized in that the main support
The hypomere of bar is embedded to below ground through anchoring piece.
5. the automatic soil erosion monitoring device in field as claimed in claim 4, which is characterized in that main support rod embedment ground
Face part below is equipped with ground temperature/measurement of water ratio sensor.
6. the automatic soil erosion monitoring device in field as claimed in claim 5, which is characterized in that the ground temperature/moisture content is surveyed
The buried depth of quantity sensor is 20 ± 2cm.
7. such as the automatic soil erosion monitoring device in field described in claim 5 or 6, which is characterized in that the ground temperature/moisture content
Protective cover is equipped with above measurement sensor.
8. the automatic soil erosion monitoring device in field as described in any one of claims 1-3, which is characterized in that the equipment is flat
Air bubble type level meter is additionally provided on platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505488.9U CN207649664U (en) | 2017-11-13 | 2017-11-13 | The automatic soil erosion monitoring device in field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505488.9U CN207649664U (en) | 2017-11-13 | 2017-11-13 | The automatic soil erosion monitoring device in field |
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| Publication Number | Publication Date |
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| CN207649664U true CN207649664U (en) | 2018-07-24 |
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ID=62888449
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727152A (en) * | 2017-11-13 | 2018-02-23 | 长江水利委员会长江流域水土保持监测中心站 | The automatic soil erosion monitoring device in field and monitoring method |
-
2017
- 2017-11-13 CN CN201721505488.9U patent/CN207649664U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727152A (en) * | 2017-11-13 | 2018-02-23 | 长江水利委员会长江流域水土保持监测中心站 | The automatic soil erosion monitoring device in field and monitoring method |
| CN107727152B (en) * | 2017-11-13 | 2024-01-30 | 长江水利委员会长江流域水土保持监测中心站 | Automatic field soil erosion monitoring device and monitoring method |
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