CN112414445B - Calibration device and calibration method based on crop group bearing capacity - Google Patents
Calibration device and calibration method based on crop group bearing capacity Download PDFInfo
- Publication number
- CN112414445B CN112414445B CN202011122143.1A CN202011122143A CN112414445B CN 112414445 B CN112414445 B CN 112414445B CN 202011122143 A CN202011122143 A CN 202011122143A CN 112414445 B CN112414445 B CN 112414445B
- Authority
- CN
- China
- Prior art keywords
- control module
- calibration device
- bearing capacity
- crop
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Soil Working Implements (AREA)
Abstract
The invention discloses a calibration device and a calibration method based on crop group bearing capacity, wherein the calibration device comprises a shell, a fixed frame, a fixed plate, a weight control mechanism, a driver, a control module, a display screen, a camera, an electric telescopic rod and a contact sensor; the top of the casing is connected with a fixed frame, a support frame is arranged in the casing and circumferentially arranged along the inner wall of the casing, a fixed plate is connected with the fixed frame, a control module, a display screen and a camera are all arranged on the fixed plate, one end of an electric telescopic rod is connected with the fixed plate, the other end of the electric telescopic rod is connected with a driver, the control module is electrically connected with the electric telescopic rod, and the control module is respectively electrically connected with the display screen and the camera; the weight control mechanism comprises a loader, a conveying pipe and a self-stabilizing device, wherein the loader is connected with the support frame, the loader is filled with contents, one end of the conveying pipe is connected to the loader, the other end of the conveying pipe extends out of the machine shell, and the self-stabilizing device is used for controlling the conveying pipe to suck or discharge the contents.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a calibration device and a calibration method based on crop group bearing capacity.
Background
The calibration of the measuring equipment mainly refers to the calibration of the accuracy (precision) of the used instrument by using higher-precision calibration equipment. The crop data are measured in the field, which is a complicated and difficult thing, and even if the used measuring equipment is calibrated in advance, when the measuring equipment is carried to the field environment, the working stability of the measuring equipment and the reliability of the measured data are still difficult to guarantee, and even faults occur.
When field measurement is carried out, a calibration device is uniformly used for all measuring equipment, so that the simplicity and the efficiency of field tests can be improved, and the test flow is simplified. Most of the existing calibration devices need to be fixed for use, and are inconvenient for field environments, especially paddy fields.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a calibration device based on the bearing capacity of crop groups, and solves the problem that the existing calibration device is inconvenient to measure.
Another objective of the present invention is to provide a calibration method for the calibration apparatus based on the bearing capacity of the crop group.
The technical scheme of the invention is as follows: a calibration device based on crop group bearing capacity comprises a shell, a fixed frame, a fixed plate, a weight control mechanism, a driver, a control module, a display screen, a camera, an electric telescopic rod and a contact sensor;
the top of the casing is connected with the fixed frame, a support frame is arranged in the casing and circumferentially arranged along the inner wall of the casing, the fixed plate is connected with the fixed frame, the control module, the display screen and the camera are all arranged on the fixed plate, one end of the electric telescopic rod is connected with the fixed plate, the other end of the electric telescopic rod is connected with the driver, the control module is electrically connected with the electric telescopic rod, and the control module is respectively electrically connected with the display screen and the camera;
the weight control mechanism comprises a loader, a conveying pipe and a self-stabilizing device, wherein the loader is connected with a support frame, the loader is filled with contents, one end of the conveying pipe is connected to the loader, the other end of the conveying pipe extends out of the machine shell, the self-stabilizing device is connected with the support frame and is electrically connected with the control module, and the self-stabilizing device is used for controlling the conveying pipe to suck or discharge the contents;
the contact sensor is arranged on the surface of the machine shell and is electrically connected with the control module, and the contact sensor is used for detecting the contact condition of crops and the machine shell.
Further, still include track seat, slider and telescopic link, the track seat is installed on the fixed plate, and the display screen is equipped with the track on installing to the track seat on the track seat, slider slidable mounting to the track in, the one end and the slider of telescopic link are connected, and the other end is connected with the camera. Through setting up track seat, slider and telescopic link, the position of the shooting of messenger's camera is adjustable, conveniently looks over the monitoring.
Further, still include the scale bar, the scale bar is installed to the surface of fixed frame. The scale bar visually reflects whether the crops in the test area reach the expected value.
Furthermore, the device also comprises a plurality of color blocks, wherein the color blocks are respectively arranged on the outer surface of the machine shell and are made of photosensitive materials. The color of the colored block changes under different weather conditions or different light conditions, and the current environmental conditions are reflected by the color.
Further, the shell is made of flexible materials. By adopting the flexible material, the shape of the casing can be changed conveniently according to the condition of crops, and the casing can be more 'slim' on the basis of being larger than the planting interval aiming at the crops with relatively hard stems, such as cotton and corn; for crops with relatively soft stems, such as rice, the bottom surface area of the enclosure will be larger. For another example, when the speed measuring equipment is calibrated, the casing is funnel-shaped; when the related indexes of the crop leaves are calibrated, the casing is in a round cake shape.
Further, still including supporting the cover, supporting the cover and including collar and a plurality of lamellar body, the collar is connected with fixed frame, and the one end and the collar of lamellar body are connected, and the other end upwards extends, and the shape of lamellar body is the arc, has the interval between two adjacent lamellar bodies. The supporting cover is arranged to prevent the driver from damaging the electronic components on the casing.
Further, still include the protection casing, the protection casing is connected and is located the support cover with fixed frame outside, and the protection casing is the horn mouth form. Through setting up the protection casing, prevent that the crop from producing the collision with electronic component on the casing.
Further, the loader is an airbag, and the content is gas.
Further, still include laser sensor, laser sensor installs in the casing, laser sensor and control module electric connection, and laser sensor is used for the range finding and tests the speed.
The other technical scheme of the invention is as follows: the calibration method of the calibration device based on the crop group bearing capacity comprises the following steps:
step S1: according to the type of crops, the shape of the supporting frame is adjusted, and the shape of the shell is further changed;
step S2: filling a proper amount of contents into the loader according to the bearing capacity of the crop canopy;
step S3: after the measurement equipment is erected, driving the calibration device to be above the crop canopy of the target measurement area, electrically connecting the measurement equipment with a control module of the calibration device, and communicating real-time measurement data of the measurement equipment with measurement data of the calibration device;
step S4: the contact sensor transmits the contact condition of the crop and the shell to the control module, the camera transmits the shooting data to the control module, and the control module compares and analyzes the contact condition data and the shooting data transmission with the measurement data of the measurement equipment and transmits the result to the display;
step S5: and after the measurement is finished, exporting the data packet, closing the calibration device and finishing one-time calibration operation.
The working principle of the calibration device based on the crop group bearing capacity is as follows: the shape of the supporting frame is adjusted according to the type of crops, the shape of the supporting frame can be changed due to the fact that the casing is made of flexible materials, the control module controls the electric telescopic rod to stretch and retract according to operation requirements, the working height of the driver is controlled, the contact sensor transmits the contact condition of the crops and the casing to the control module, the camera transmits shooting data to the control module, the laser sensor is used for distance measurement and speed measurement and transmits the measurement data to the control module, and the control module can transmit various types of data to the display screen; the self-stabilizing device transmits flight data to the control module according to the requirement of the operation flight attitude, and the control module controls the transport pipe to suck or discharge contents so as to adjust the weight of the calibration device.
Compared with the prior art, the invention has the following beneficial effects:
the calibration device based on the crop group bearing capacity is simple in use mode, based on the crop group bearing capacity, directly contacts crops, can effectively measure multiple indexes of the crops, is used as a comprehensive reference, and is combined with the measurement conditions of various measurement devices to play a calibration role. According to the actual measurement result, the bearing capacity of the rice (Meixiangzhan No. 2) canopy in the tillering stage can reach 100N per unit area, and the bearing capacity is enough to support the calibration device with complete function to freely walk on medium-hard stalk crops, even soft stalks such as rice and the like.
According to the calibration device based on the crop group bearing capacity, the casing is made of flexible materials, the shape of the casing can be changed conveniently according to the condition of crops, and the casing can be more 'slim' on the basis of the planting interval for crops with relatively hard stems, such as cotton and corn; for crops with relatively soft stems, such as rice, the bottom surface area of the enclosure will be larger. For another example, when the speed measuring equipment is calibrated, the casing is funnel-shaped; when the related indexes of the crop leaves are calibrated, the casing is in a round cake shape.
Drawings
Fig. 1 is a schematic structural diagram of a calibration device based on crop population bearing capacity.
Fig. 2 is a schematic partial structure diagram of the calibration device based on the bearing capacity of the crop group.
Fig. 3 is an exploded view of the calibration device based on the bearing capacity of the crop group.
Fig. 4 is an exploded view of another perspective of the calibration device based on crop group bearing capacity of the present invention.
Fig. 5 is a schematic view of the assembly of the housing with the support frame and the loader of the present invention.
The device comprises a machine shell 1, a fixed frame 2, a fixed plate 3, a driver 4, a display screen 5, a camera 6, an electric telescopic rod 7, a rail seat 8, a rail 81, a sliding block 9, a telescopic rod 10, a color block 11, a supporting cover 12, a protective cover 13, a loader 14, a mounting ring 15, a sheet body 16 and a supporting frame 17.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Examples
As shown in fig. 1 and fig. 3, the present embodiment provides a calibration device based on the bearing capacity of a crop group, which includes a housing 1, a fixed frame 2, a fixed plate 3, a supporting frame 17, a weight control mechanism, a driver 4, a control module, a display screen 5, a camera 6, an electric telescopic rod 7, a contact sensor, a laser sensor, a rail seat 8, a sliding block 9, a telescopic rod 10, a scale bar, a color block 11, a supporting cover 12, and a protective cover 13.
As shown in fig. 2, 3, 4 and 5, the top of the casing is connected to the fixed frame, a support frame is disposed in the casing, the support frame is circumferentially disposed along the inner wall of the casing, the fixed plate is connected to the fixed frame, the control module, the display screen and the camera are all disposed on the fixed plate, one end of the electric telescopic rod is connected to the fixed plate, the other end of the electric telescopic rod is connected to the driver, the control module is electrically connected to the electric telescopic rod, and the control module is electrically connected to the display screen and the camera respectively; the track seat is installed on the fixed plate, and the display screen is installed to the track seat on, is equipped with track 81 on the track seat, and slider slidable mounting is connected with the slider in to the track, the one end of telescopic link, and the other end is connected with the camera. Through setting up track seat, slider and telescopic link, the position of the shooting of messenger's camera is adjustable, conveniently looks over the monitoring.
The casing is made of flexible materials, the shape of the casing can be changed conveniently according to the condition of crops by adopting the flexible materials, and the casing can be more 'slim' on the basis of being larger than the planting interval aiming at crops with relatively hard stems, such as cotton and corn; for crops with relatively soft stems, such as rice, the bottom surface area of the enclosure will be larger. For another example, when the speed measuring equipment is calibrated, the casing is funnel-shaped; when the related indexes of the crop leaves are calibrated, the casing is in a round cake shape. The shape of the housing is changed according to the shape change of the support frame in the housing.
As shown in fig. 1 and 4, the contact sensor is mounted on the surface of the housing, the contact sensor is electrically connected to the control module, and the contact sensor is used for detecting the contact condition between the crops and the housing; the plurality of color blocks are respectively installed on the outer surface of the machine shell and are made of photosensitive materials. The color of the color block can change under different weather conditions or different light conditions, and the current environmental conditions are reflected by the color; the scale bar is mounted to the outer surface of the fixed frame. The scale bars visually reflect whether the growth of crops in the test area reaches an expected value or not; laser sensor installs in the casing, laser sensor and control module electric connection, and laser sensor is used for the range finding and tests the speed.
As shown in fig. 5, the weight control mechanism includes a loader 14, a transport tube and a self-stabilizing device, the loader is connected with a support frame, the loader is filled with contents, one end of the transport tube is connected to the loader, the other end of the transport tube extends out of the machine shell, the self-stabilizing device is connected with the support frame, the self-stabilizing device is electrically connected with the control module, and the self-stabilizing device is used for controlling the transport tube to suck or discharge the contents; in this embodiment, the loader is an airbag, the contents are gas, and the weight of the entire apparatus is adjusted by controlling the air intake or exhaust of the airbag.
As shown in fig. 1 and 3, the support cover includes a mounting ring 15 and a plurality of sheet bodies 16, the mounting ring is connected with the fixing frame, one end of each sheet body is connected with the mounting ring, the other end of each sheet body extends upwards, the shape of each sheet body is arc-shaped, and a distance is reserved between every two adjacent sheet bodies. The supporting cover is arranged to prevent the driver from damaging the electronic components on the casing. The supporting cover is provided with a plurality of sheet bodies, which is beneficial to the divergence of the downwash of the driver.
As shown in fig. 3 and 4, the protective cover is connected with the fixing frame and located outside the supporting cover, and the protective cover is in a horn mouth shape. Through setting up the protection casing, prevent that the crop from producing the collision with electronic component on the casing.
The calibration method of the calibration device based on the crop group bearing capacity comprises the following steps:
step S1: according to the type of crops, the shape of the supporting frame is adjusted, and the shape of the shell is further changed;
step S2: filling a proper amount of contents into the loader according to the bearing capacity of the crop canopy;
step S3: after the measurement equipment is erected, driving the calibration device to be above the crop canopy of the target measurement area, electrically connecting the measurement equipment with a control module of the calibration device, and communicating real-time measurement data of the measurement equipment with measurement data of the calibration device;
step S4: the contact sensor transmits the contact condition of the crop and the shell to the control module, the camera transmits the shooting data to the control module, and the control module compares and analyzes the contact condition data and the shooting data transmission with the measurement data of the measurement equipment and transmits the result to the display;
step S5: and after the measurement is finished, exporting the data packet, closing the calibration device and finishing one-time calibration operation.
The working principle of the calibration device based on the crop group bearing capacity is as follows: the shape of the supporting frame is adjusted according to the type of crops, the shape of the supporting frame can be changed due to the fact that the casing is made of flexible materials, the control module controls the electric telescopic rod to stretch and retract according to operation requirements, the working height of the driver is controlled, the contact sensor transmits the contact condition of the crops and the casing to the control module, the camera transmits shooting data to the control module, the laser sensor is used for distance measurement and speed measurement and transmits the measurement data to the control module, and the control module can transmit various types of data to the display screen; the self-stabilizing device transmits flight data to the control module according to the requirement of the operation flight attitude, and the control module controls the transport pipe to suck or discharge contents so as to adjust the weight of the calibration device.
As mentioned above, the present invention can be better realized, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present disclosure are intended to be covered by the scope of the claims of the present invention.
Claims (9)
1. A calibration device based on crop group bearing capacity is characterized by comprising a shell, a fixed frame, a fixed plate, a weight control mechanism, a driver, a control module, a display screen, a camera, an electric telescopic rod and a contact sensor;
the top of the shell is connected with a fixed frame, a support frame is arranged in the shell and is circumferentially arranged along the inner wall of the shell, the shell is made of a flexible material, the shape of the shell is changed by changing the shape of the support frame, a fixed plate is connected with the fixed frame, a control module, a display screen and a camera are all arranged on the fixed plate, one end of an electric telescopic rod is connected with the fixed plate, the other end of the electric telescopic rod is connected with a driver, the control module is electrically connected with the electric telescopic rod, and the control module is respectively electrically connected with the display screen and the camera;
the weight control mechanism comprises a loader, a conveying pipe and a self-stabilizing device, wherein the loader is connected with a support frame, the loader is filled with contents, one end of the conveying pipe is connected to the loader, the other end of the conveying pipe extends out of the machine shell, the self-stabilizing device is connected with the support frame and is electrically connected with the control module, and the self-stabilizing device is used for controlling the conveying pipe to suck or discharge the contents;
the contact sensor is arranged on the surface of the machine shell and is electrically connected with the control module, and the contact sensor is used for detecting the contact condition of crops and the machine shell.
2. The calibration device based on the bearing capacity of the crop groups as claimed in claim 1, further comprising a rail seat, a sliding block and a telescopic rod, wherein the rail seat is mounted on the fixing plate, the display screen is mounted on the rail seat, the rail seat is provided with a rail, the sliding block is slidably mounted in the rail, one end of the telescopic rod is connected with the sliding block, and the other end of the telescopic rod is connected with the camera.
3. The calibration device based on crop population bearing capacity according to claim 1, further comprising a scale bar mounted to the outer surface of the fixed frame.
4. The calibration device according to claim 1, further comprising a plurality of colored blocks, wherein the colored blocks are respectively mounted on the outer surface of the housing, and the colored blocks are made of photosensitive material.
5. The calibration device based on crop population bearing capacity according to claim 1, further comprising a support cover, wherein the support cover comprises a mounting ring and a plurality of sheet bodies, the mounting ring is connected with the fixing frame, one end of each sheet body is connected with the mounting ring, the other end of each sheet body extends upwards, the shape of each sheet body is arc-shaped, and a distance is formed between every two adjacent sheet bodies.
6. The calibration device based on crop population bearing capacity of claim 5, further comprising a protective cover, wherein the protective cover is connected with the fixed frame and located outside the supporting cover, and the protective cover is in a bell mouth shape.
7. The calibration device based on crop population bearing capacity according to claim 1, wherein the loader is an air bag and the content is gas.
8. The calibration device based on the crop population bearing capacity of claim 1, further comprising a laser sensor, wherein the laser sensor is installed on the machine shell, the laser sensor is electrically connected with the control module, and the laser sensor is used for measuring distance and speed.
9. A calibration method of a calibration device based on crop population bearing capacity as claimed in any one of claims 1 to 8, characterized by comprising the following steps:
step S1: according to the type of crops, the shape of the supporting frame is adjusted, and the shape of the shell is changed;
step S2: filling a proper amount of contents into the loader according to the bearing capacity of the crop canopy;
step S3: after the measurement equipment is erected, driving the calibration device to be above the crop canopy of the target measurement area, electrically connecting the measurement equipment with a control module of the calibration device, and communicating real-time measurement data of the measurement equipment with measurement data of the calibration device;
step S4: the contact sensor transmits the contact condition of the crop and the shell to the control module, the camera transmits the shooting data to the control module, and the control module compares and analyzes the contact condition data and the shooting data transmission with the measurement data of the measurement equipment and transmits the result to the display;
step S5: and after the measurement is finished, exporting the data packet, closing the calibration device and finishing one-time calibration operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011122143.1A CN112414445B (en) | 2020-10-20 | 2020-10-20 | Calibration device and calibration method based on crop group bearing capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011122143.1A CN112414445B (en) | 2020-10-20 | 2020-10-20 | Calibration device and calibration method based on crop group bearing capacity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112414445A CN112414445A (en) | 2021-02-26 |
| CN112414445B true CN112414445B (en) | 2021-09-24 |
Family
ID=74840989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011122143.1A Active CN112414445B (en) | 2020-10-20 | 2020-10-20 | Calibration device and calibration method based on crop group bearing capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112414445B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3978324A (en) * | 1975-02-04 | 1976-08-31 | Hawker Siddeley Dynamics Limited | Automatic crop inventory system |
| CN103274045A (en) * | 2013-05-10 | 2013-09-04 | 华南农业大学 | Duct airship helicopter |
| CN103885454A (en) * | 2014-03-07 | 2014-06-25 | 华南农业大学 | Operation method and device for enabling agricultural aircraft to fly according to canopy characteristic parameters |
| CN204329907U (en) * | 2015-01-06 | 2015-05-13 | 山西农业大学 | A kind of crop canopies analyser |
| CN105510242A (en) * | 2015-12-28 | 2016-04-20 | 南京农业大学 | Crop growth monitoring method and device based on multi-rotor wing unmanned aerial vehicle platform |
| CN205482946U (en) * | 2016-01-29 | 2016-08-17 | 北京农业信息技术研究中心 | Crop canopies image acquisition device |
| CN205665108U (en) * | 2016-06-03 | 2016-10-26 | 湖南杂交水稻研究中心 | Stem of plant stalk bearing capacity survey device |
| CN106516090A (en) * | 2016-12-09 | 2017-03-22 | 华南农业大学 | Device and method suitable for fixed-wing unmanned aerial vehicle to land on field crop canopy |
| CN208270464U (en) * | 2018-05-25 | 2018-12-21 | 华中科技大学 | A kind of measuring system for Crop evapotranspiration hair measurement |
| CN110046613A (en) * | 2019-05-16 | 2019-07-23 | 北京农业信息技术研究中心 | A kind of crop canopies growth in situ phenotype monitoring device and three-dimensional rebuilding method |
| CN111645478A (en) * | 2020-05-27 | 2020-09-11 | 农业农村部南京农业机械化研究所 | Wheeled farmland management robot with flexible profiling chassis and profiling control method |
-
2020
- 2020-10-20 CN CN202011122143.1A patent/CN112414445B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3978324A (en) * | 1975-02-04 | 1976-08-31 | Hawker Siddeley Dynamics Limited | Automatic crop inventory system |
| CN103274045A (en) * | 2013-05-10 | 2013-09-04 | 华南农业大学 | Duct airship helicopter |
| CN103885454A (en) * | 2014-03-07 | 2014-06-25 | 华南农业大学 | Operation method and device for enabling agricultural aircraft to fly according to canopy characteristic parameters |
| CN204329907U (en) * | 2015-01-06 | 2015-05-13 | 山西农业大学 | A kind of crop canopies analyser |
| CN105510242A (en) * | 2015-12-28 | 2016-04-20 | 南京农业大学 | Crop growth monitoring method and device based on multi-rotor wing unmanned aerial vehicle platform |
| CN205482946U (en) * | 2016-01-29 | 2016-08-17 | 北京农业信息技术研究中心 | Crop canopies image acquisition device |
| CN205665108U (en) * | 2016-06-03 | 2016-10-26 | 湖南杂交水稻研究中心 | Stem of plant stalk bearing capacity survey device |
| CN106516090A (en) * | 2016-12-09 | 2017-03-22 | 华南农业大学 | Device and method suitable for fixed-wing unmanned aerial vehicle to land on field crop canopy |
| CN208270464U (en) * | 2018-05-25 | 2018-12-21 | 华中科技大学 | A kind of measuring system for Crop evapotranspiration hair measurement |
| CN110046613A (en) * | 2019-05-16 | 2019-07-23 | 北京农业信息技术研究中心 | A kind of crop canopies growth in situ phenotype monitoring device and three-dimensional rebuilding method |
| CN111645478A (en) * | 2020-05-27 | 2020-09-11 | 农业农村部南京农业机械化研究所 | Wheeled farmland management robot with flexible profiling chassis and profiling control method |
Non-Patent Citations (1)
| Title |
|---|
| 作物株型和冠层结构信息获取与表述的方法（综述）;李少昆 等;《石河子大学学报（自然科学版）》;19970930;第1卷(第3期);第250-255页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112414445A (en) | 2021-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206740075U (en) | A kind of box volume measurement apparatus for conveyer belt | |
| CN108362744B (en) | Indoor measuring device and method for dynamic spray deposition distribution characteristics of spray rod type sprayer | |
| US20090118910A1 (en) | Method of operating a planter for planting seeds in a field for experimental purposes | |
| CN112414445B (en) | Calibration device and calibration method based on crop group bearing capacity | |
| CN105451630A (en) | Insertion system and method for adjusting shape detection characteristics of shape sensor | |
| CN105716684A (en) | UAV (Unmanned Aerial Vehicle) liquid level measuring device and UAV liquid level measuring method | |
| US20190234811A9 (en) | Air and gas flow velocity and temperature sensor probe | |
| CN211402374U (en) | Four feelings of integrated form agricultural quick detection device | |
| KR101992581B1 (en) | Meteorological observing apparatus using drone and balloon | |
| CN207191436U (en) | The uniform unmanned plane of spraying insecticide of sprinkling | |
| CN116513524B (en) | Urban planning mapping equipment based on unmanned aerial vehicle remote sensing mapping | |
| CN206056588U (en) | A kind of Multifunctional total station instrument | |
| CN115683542A (en) | Adjustable wind resistance performance test system | |
| CN112539939B (en) | Phase change engine tail flame temperature testing device and control method | |
| CN210833806U (en) | Visual balance of dampproofing and waterproofing thing networking | |
| CN211178573U (en) | Height self-adjusting greenhouse crop growth environment monitoring device | |
| CN211745357U (en) | Harvester with measuring function | |
| CN209746000U (en) | High-precision wind speed sensor | |
| CN209841347U (en) | Device for measuring astronomical site seeing degree | |
| CN111661333A (en) | Precision seeding unmanned aerial vehicle | |
| CN209911188U (en) | Sand dust concentration calibrating device | |
| CN208110075U (en) | Hand-held weather station | |
| RU2693600C1 (en) | Method for modernization of crop equipment and device for realizing method | |
| CN220140227U (en) | Concave plate and roller clearance detection structure, screening plant and grain harvester | |
| CN115060856B (en) | Online cereal moisture survey device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |