Crop growth monitoring device

Abstract

The invention relates to the technical field of crop planting, and discloses a crop growth monitoring device which comprises an unmanned aerial vehicle body, undercarriages are fixedly arranged on the two sides of the unmanned aerial vehicle body, a mounting cavity is formed in the middle of the bottom end of the unmanned aerial vehicle body, and a laser distance measuring sensor and a camera are arranged in the mounting cavity. Cavities are formed in the two sides of the bottom end of the unmanned aerial vehicle body, rotating frames are fixedly arranged on the two sides of the bottom end of the unmanned aerial vehicle body, and mounting shafts are rotationally arranged in the rotating frames; the unmanned aerial vehicle is used for flight monitoring, the monitoring range is wider, monitoring data are more accurate, the foldable supporting structure is arranged at the bottom of the unmanned aerial vehicle body and can be stored at the bottom of the unmanned aerial vehicle body in the flight process of the unmanned aerial vehicle, the occupied space is reduced, the unmanned aerial vehicle is supported when landing, the supporting structure is arranged to be in a telescopic state, and therefore the unmanned aerial vehicle is more convenient to use. In the unfolding process, automatic extension is conducted, the supporting height of the unmanned aerial vehicle body is increased, and the enough length ensures that the unmanned aerial vehicle does not make contact with crops.

Description

Technical Field

[0001] The invention relates to the technical field of crop planting, in particular to a crop growth monitoring device. Background Art

[0002] As a large agricultural country, China has a wide range of crops planted. At the same time, various researches on improving crops are also emerging in an endless stream. In order to ensure the growth status of crops and provide reasonable care, real-time monitoring of crops is very important, especially for trial crops in experimental fields, which need real-time monitoring to obtain detailed data as the basis for experiments. After searching, the crop growth monitoring device based on the Internet of Things and the method thereof disclosed in the application number 201910394935.5 include several monitoring mechanisms, each of which includes a base and a support rod fixed on the base, and the support rod is provided with an electrical installation box formed by buckling an upper conical cover and a lower conical cover; a component for driving the swing arm to rotate is provided on the support rod adjacent to the lowest surface of the upper conical cover, and a plurality of laser ranging sensors are provided on the swing arm; a component for driving the ultra-high-definition camera to rotate is provided on the support rod in the section where the upper conical cover is located, and the image collected by the ultra-high-definition camera can be used to obtain the leaf growth of crops, and the data collected by the laser ranging sensor can be used to confirm the height of crops; After further searching, the application number 202111339761.6 disclosed a crop growth monitoring device for agricultural Internet of Things, which includes: a support leg and a first rotating seat, six support legs are evenly arranged on the lower part of the first rotating seat; a first rotating block, a first rotating block is rotatably arranged on the upper part of the first rotating seat; a discharge plate, a discharge plate is arranged on the upper side of the first rotating seat; a first bracket, a first bracket is arranged on the outer wall and both sides of the first rotating seat; a second rotating seat, a second rotating seat is connected between the upper parts of the three first brackets. The present invention is provided with a rotating mechanism, and the camera with circular motion and up and down reciprocating motion can monitor the growth of crops in all directions and record the growth conditions of crops. There is no need for staff to monitor for a long time, which reduces the difficulty of work. However, the above method still has the following defects in actual use: the base is fixed, the monitoring range of the ultra-high-definition camera or camera and laser ranging sensor is limited, which makes it inconvenient for staff to monitor and compare the growth of crops in different locations in real time, and it is impossible to monitor the soil temperature and humidity in each area, resulting in the inability to understand the growth of plants in a timely and convenient manner, and it is not convenient for large-scale planting. Summary of the invention

[0003] The object of the present invention is to provide a crop growth monitoring device, which increases the monitoring range and can monitor the soil temperature and humidity in various areas.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: a crop growth monitoring device, including an unmanned aerial vehicle body, landing gears are fixedly provided on both sides of the unmanned aerial vehicle body, an installation cavity is provided in the middle of the bottom end of the unmanned aerial vehicle body, a laser ranging sensor and a camera are arranged inside the installation cavity, a cavity is provided on both sides of the bottom end of the unmanned aerial vehicle body, a rotating frame is fixedly provided on both sides of the bottom end of the unmanned aerial vehicle body, an installation shaft is rotatably provided inside the rotating frame, a connecting component is provided on the installing shaft, the installing shaft is transmission-connected to a support frame through the connecting component, a telescopic frame is slidingly provided inside the support frame, a bracket is fixedly provided at the bottom end of the telescopic frame, a linkage component is provided on the inner side of the support frame to drive the telescopic frame to telescope and move inside the support frame, a monitoring mechanism for monitoring soil temperature and humidity is provided on the surface of the bracket, the monitoring mechanism includes an insertion rod and a temperature and humidity sensor, the insertion rod passes through the bracket, and the insertion rod and the bracket are slidably matched.

[0005] The present invention is further configured as follows: a motor frame is fixedly provided on one side of the rotating frame, a driving motor is fixedly provided on the outer side of the motor frame, and a transmission shaft of the driving motor is connected to one end of the mounting shaft.

[0006] The present invention is further configured as follows: the connecting assembly includes a mounting tube and a torsion spring, two mounting tubes are rotatably mounted on the mounting shaft, the mounting tube passes through the top of the support frame, and the support frame is fixedly connected to the mounting tube, and two torsion springs are sleeved on the mounting shaft.

[0007] The present invention is further configured as follows: the linkage assembly includes a linkage plate and a connecting arm 1, the linkage plate is arranged in the middle of the mounting shaft, and the linkage plate is fixedly connected to the mounting shaft, one end of the torsion spring is fixedly connected to the linkage plate, the other end of the torsion spring is fixedly connected to the support frame, one end of the linkage plate away from the mounting shaft is rotatably connected to one end of the connecting arm 1, and the other end of the connecting arm 1 is rotatably connected to the top of the telescopic frame.

[0008] The present invention is further configured as follows: a stop bar is fixedly mounted on one side of the rotating frame, and when the support frame rotates to a vertical state, the support frame fits against the stop bar.

[0009] The present invention is further configured as follows: a connecting plate is provided on the top of the telescopic frame, a guide groove corresponding to the connecting plate is provided on the inner side of the support frame, a rotating seat is fixedly provided on one side of the connecting plate, and the rotating seat is rotatably connected to the other end of the connecting arm.

[0010] The present invention is further configured as follows: a lifting cylinder is fixedly provided inside the installation cavity, a connecting frame is fixedly provided at the piston end of the lifting cylinder, a mounting seat 1 is fixedly provided at one end of the connecting frame, the laser ranging sensor is arranged at the bottom end of the mounting seat 1, a mounting seat 2 is fixedly provided at the other end of the connecting frame, and the camera is arranged at the bottom end of the mounting seat 2.

[0011] The present invention is further configured as follows: a protective tube that slides in correspondence with the insertion rod is fixedly provided on the top of the bracket, and a driving assembly is provided on the bracket so that the telescopic frame can synchronously drive the insertion rod to move up and down when the telescopic frame is telescoped inside the support frame.

[0012] The present invention is further configured as follows: the driving assembly includes a vertical plate, a support and a rope winding wheel, the vertical plates are provided with two, the vertical plates are fixedly arranged at the top end of the bracket, a two-way screw rod is rotatably arranged between the two vertical plates, the wire grooves at both ends of the two-way screw rod are in opposite directions, a rope winding wheel is fixedly arranged in the middle of the two-way screw rod, two moving seats are threadedly installed on the surface of the two-way screw rod, a support is provided above the bracket, the support is elastically connected to the bracket through a spring, a connecting arm two is rotatably arranged between the moving seat and the support, the insertion rod is fixedly arranged at the bottom end of the support, a connecting rod is fixedly installed on the inner side of the support frame, a traction rope is connected to the rope winding wheel, and the top of the traction rope is fixedly connected to the connecting rod.

[0013] The present invention is further configured as follows: an articulated seat 1 is fixedly provided at the bottom end of the movable seat, the articulated seat 1 is rotatably connected to the top of the connecting arm 2, and two articulated seats 2 are fixedly provided at the top end of the support, the articulated seat 2 is rotatably connected to the bottom of the connecting arm 2.

[0014] In summary, the present invention has the following beneficial effects: the images collected by the camera can be used to obtain the leaf growth conditions of crops, the data collected by the laser ranging sensor can be used to confirm the height of crops, and the drone flight monitoring is used. Compared with the traditional fixed position monitoring, the monitoring range is wider and the monitoring data is more accurate; by arranging a foldable support structure at the bottom of the drone body, it can be stored at the bottom of the drone during flight to reduce the occupied space, and support the drone when it lands, and the support structure is set to a retractable state, which automatically extends during the unfolding process to increase the support height of the drone body, and has sufficient length to ensure that the drone does not contact the crops; a sliding plug rod is provided, and a temperature and humidity sensor is provided at the bottom of the plug rod to detect the temperature and humidity of the soil, and a driving component is provided, which can drive the bottom of the plug rod to move out of the bottom of the bracket when the support frame is unfolded, without interfering with the detection of the soil by the plug rod, and when the support frame is stored, the plug rod is moved into the protective tube to protect the temperature and humidity sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a structural schematic diagram of the support frame, the mounting shaft, the torsion spring and the linkage plate of the present invention; Figure 3 This is one of the structural schematic diagrams of the support frame, telescopic frame and linkage assembly of the present invention; Figure 4 It is a structural schematic diagram of the lifting cylinder and the connecting frame of the present invention; Figure 5 This is the second structural schematic diagram of the support frame, telescopic frame and linkage assembly of the present invention; Figure 6 For the present invention Figure 5 An enlarged schematic diagram of point A.

[0016] In the figure: 1, drone body; 101, landing gear; 2, rotating frame; 201, mounting shaft; 202, linkage plate; 203, connecting arm 1; 204, motor frame; 205, drive motor; 206, torsion spring; 207, mounting tube; 3, support frame; 301, guide groove; 4, telescopic frame; 401, bracket; 405, connecting plate; 406, rotating seat; 5, stop rod; 6, mounting cavity; 601, lifting cylinder; 602, connecting frame; 60 3. Mounting seat 1; 604. Laser ranging sensor; 605. Mounting seat 2; 606. Camera; 7. Monitoring mechanism; 701. Vertical plate; 702. Bidirectional screw rod; 703. Moving seat; 704. Rope winding wheel; 705. Traction rope; 706. Protective tube; 707. Articulated seat 1; 708. Connecting arm 2; 709. Articulated seat 2; 710. Support; 711. Insert rod; 712. Temperature and humidity sensor; 713. Spring; 8. Connecting rod. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0018] See also Figures 1 to 6In an embodiment of the present invention, a crop growth monitoring device includes a drone body 1, both sides of the drone body 1 are fixedly provided with landing gears 101, and the length of the bottom of the landing gear 101 is greater than the height of the lower support frame 3 when it is stored, which can play a supporting role when the drone body 1 is landing, and prevent the support structure after storage from contacting the ground, causing the support of the drone body 1 to be unstable. The middle part of the bottom end of the drone body 1 is provided with an installation cavity 6, and the interior of the installation cavity 6 is provided with a laser ranging sensor 604 and a camera 606. The laser ranging sensor 604 is used to detect the plant height of the growing crops, and the camera 606 is used to dynamically monitor the growth of crops at different positions. Both sides of the bottom end of the drone body 1 are provided with cavities The body does not interfere with the storage of the support frame 3. A rotating frame 2 is fixed on both sides of the bottom of the drone body 1. A mounting shaft 201 is rotatably arranged inside the rotating frame 2, and both ends of the mounting shaft 201 penetrate the side of the rotating frame 2 and are connected by bearings, which guides the deployment and storage of the support frame 3. A connecting component is arranged on the mounting shaft 201, and the mounting shaft 201 is transmission-connected to the support frame 3 through the connecting component. A telescopic frame 4 is slidably arranged inside the support frame 3. The telescopic support structure can increase the support height of the drone body 1, and has a sufficient length to ensure that the drone body 1 does not contact the crops, so as to prevent the drone body 1 from causing damage to the crops when landing, and at the same time reduce the space occupied when the support structure is stored. The support frame 3 has a space for use, and a linkage component is arranged on the inner side of the support frame 3 to drive the telescopic frame 4 to telescope and move inside the support frame 3, with higher synchronization, and no separate driving structure is required to realize the synchronous telescopic movement of the telescopic frame 4. A bracket 401 is fixedly arranged at the bottom end of the telescopic frame 4, and a monitoring mechanism 7 for monitoring the temperature and humidity of the soil is arranged on the surface of the bracket 401. The monitoring mechanism 7 includes an insertion rod 711 and a temperature and humidity sensor 712. The insertion rod 711 passes through the bracket 401, and the insertion rod 711 slides with the bracket 401. The position of the insertion rod 711 can be moved so as to be inserted into the soil at the crop planting site. A temperature and humidity sensor 712 is embedded at the bottom end of the insertion rod 711, and the temperature and humidity sensor 712 is used to monitor the temperature and humidity of the soil Real-time detection is performed, and the bottom of the insertion rod 711 is set to be conical, so that the insertion rod 711 can be inserted into the soil more quickly to detect its temperature and humidity. At the same time, the flight of the drone body 1 is controlled by the drone remote control. A PLC controller is set in the drone remote control, and the PLC controller is connected to the laser ranging sensor 604, the camera 606 and the temperature and humidity sensor 712 signals. The PLC controller can receive the detection data of the laser ranging sensor 604, the camera 606 and the temperature and humidity sensor 712, and transmit the detection data of the laser ranging sensor 604, the camera 606 and the temperature and humidity sensor 712 to the display screen of the drone remote control in real time, so that the staff can understand the growth status of the crops in real time.

[0019] In this embodiment, preferably, a motor frame 204 is fixedly provided on one side of the rotating frame 2, and a driving motor 205 is fixedly provided on the outer side of the motor frame 204. The transmission shaft of the driving motor 205 is connected to one end of the installation shaft 201, and the installation shaft 201 can be driven to rotate by rotating the transmission shaft of the driving motor 205. The driving motor 205 is a forward and reverse motor, and the rotation angle of the transmission shaft of the driving motor 205 is a forward rotation angle and a reverse rotation angle, so that the support frame 3 is perpendicular to the ground when unfolded or parallel to the ground when retracted. At the same time, the rotation directions of the two driving motors 205 are opposite, so that the support frame 3 can be synchronously unfolded or retracted to ensure synchronization; In this embodiment, preferably, the connecting component includes a mounting tube 207 and a torsion spring 206, two mounting tubes 207 are rotatably installed on the mounting shaft 201, the mounting tube 207 passes through the top of the support frame 3, and the support frame 3 is fixedly connected to the mounting tube 207, two torsion springs 206 are sleeved on the mounting shaft 201, and the linkage component includes a linkage plate 202 and a connecting arm 203, the linkage plate 202 is arranged in the middle of the mounting shaft 201, and the linkage plate 202 is fixedly connected to the mounting shaft 201, one end of the torsion spring 206 is fixedly connected to the linkage plate 202, and the other end of the torsion spring 206 is fixedly connected to the support frame 3, the end of the linkage plate 202 away from the mounting shaft 201 is rotatably connected to one end of the connecting arm 203, and the other end of the connecting arm 203 is rotatably connected to the top of the telescopic frame 4; one side of the rotating frame 2 is fixedly installed There is a stop rod 5. When the support frame 3 rotates to a vertical state, the support frame 3 fits with the stop rod 5; when the support frame 3 is unfolded or stored, the driving motor 205 can drive the installation shaft 201 to rotate, thereby driving the linkage plate 202 to rotate. When the linkage plate 202 rotates, the support frame 3 is driven to rotate synchronously through the torsion spring 206. When the support frame 3 rotates to a vertical state, the support frame 3 contacts the stop rod 5, so that the support frame 3 cannot continue to rotate. Due to the setting of the torsion spring 206, the installation shaft 201 can continue to rotate, and then the driving motor 205 continues to drive the installation shaft 201 to rotate. When the installation shaft 201 rotates, it continues to drive the linkage plate 202 to rotate. At this time, the installation cylinder 207 is stationary, and the installation shaft 201 rotates. When the linkage plate 202 rotates, the connecting plate 405 is driven to rise and fall through the connecting arm 203, and then the telescopic frame 4 is driven to telescope synchronously inside the support frame 3; In this embodiment, preferably, a connecting plate 405 is provided on the top of the telescopic frame 4, and a guide groove 301 corresponding to the connecting plate 405 is provided on the inner side of the support frame 3 so as not to interfere with the movement of the telescopic frame 4. A rotating seat 406 is fixedly provided on one side of the connecting plate 405, and the rotating seat 406 is rotatably connected to the other end of the connecting arm 203, so as to guide the linkage of the telescopic frame 4. In this embodiment, preferably, a protective tube 706 is fixedly provided at the top of the bracket 401, which is slidably matched with the insertion rod 711, so that the bottom of the insertion rod 711 is retracted into the inside of the protective tube 706 when not in use, and the temperature and humidity sensor 712 at the bottom of the insertion rod 711 is protected. A driving component is provided on the bracket 401, so that the telescopic frame 4 can synchronously drive the insertion rod 711 to move up and down when the telescopic frame 4 is telescoped inside the support frame 3, so that the bottom of the insertion rod 711 can pass through the bottom of the bracket 401, and when the support frame 3 is unfolded, the part of the insertion rod 711 with the temperature and humidity sensor 712 can be inserted into the soil; In this embodiment, preferably, the driving assembly includes a vertical plate 701, a support 710 and a rope winding wheel 704, and two vertical plates 701 are provided. The vertical plates 701 are fixedly arranged at the top end of the bracket 401, and a bidirectional screw rod 702 is rotatably arranged between the two vertical plates 701. The wire grooves at both ends of the bidirectional screw rod 702 are in opposite directions. The bidirectional screw rod 702 is a ball screw, so that the moving seat 703 on the surface of the bidirectional screw rod 702 moves synchronously toward each other, and a rope winding wheel 704 is fixedly arranged in the middle part of the bidirectional screw rod 702. Two moving seats 703 are threadedly installed on the surface of the bidirectional screw rod 702, and a support 710 is arranged above the bracket 401. The support 710 is elastically connected to the bracket 401 through a spring 713, and a connecting arm 2 708 is rotatably arranged between the moving seat 703 and the support 710. The insertion rod 711 is fixedly arranged at the bottom end of the support 710, and a connecting rod 8 is fixedly installed on the inner side of the support frame 3. A traction rope 705 is connected to the rope wheel 704, and the top of the traction rope 705 is fixedly connected to the connecting rod 8. When the telescopic frame 4 is extended downward, as the distance between the rope wheel 704 and the connecting rod 8 increases, the traction rope 705 is gradually released from the rope wheel 704, thereby rotating the rope wheel 704. When the rope wheel 704 rotates, it drives the bidirectional screw rod 702 to rotate. The wire grooves at both ends of the bidirectional screw rod 702 are in opposite directions, so that the moving seat 703 on the surface of the bidirectional screw rod 702 moves synchronously towards each other, and the support 710 is driven to move downward through the connecting arm 2 708, so that the part with the temperature and humidity sensor 712 at the bottom of the insertion rod 711 below the support 710 is exposed to the bottom of the bracket 401; In this embodiment, preferably, a hinged seat 707 is fixedly provided at the bottom end of the movable seat 703, and the hinged seat 707 is rotatably connected to the top of the connecting arm 708. Two hinged seats 709 are fixedly provided at the top of the support 710, and the hinged seat 709 is rotatably connected to the bottom of the connecting arm 708. When the movable seat 703 on the surface of the bidirectional screw rod 702 moves synchronously toward each other, the hinged connecting arm 708 drives the support 710 to move up and down synchronously. In this embodiment, preferably, a lifting cylinder 601 is fixedly provided inside the installation cavity 6, a connecting frame 602 is fixedly provided at the piston end of the lifting cylinder 601, a mounting seat 1 603 is fixedly provided at one end of the connecting frame 602, the laser ranging sensor 604 is arranged at the bottom end of the mounting seat 1 603, a mounting seat 2 605 is fixedly provided at the other end of the connecting frame 602, and the camera 606 is arranged at the bottom end of the mounting seat 2 605. When monitoring the growth of crops, the laser ranging sensor 604 and the camera 606 in the installation cavity 6 are moved to the outside of the installation cavity 6 by extending the piston end of the lifting cylinder 601, the plant height of the growing crops is detected by the laser ranging sensor 604, and the growth of crops at different positions is dynamically monitored by the camera 606. When not monitoring, the laser ranging sensor 604 and the camera 606 in the installation cavity 6 are moved to the inside of the installation cavity 6 by contracting the piston end of the lifting cylinder 601 to play a protective role. In this embodiment, preferably, a protective cover (not shown in the figure) is provided under the installation cavity 6. When no monitoring is performed, the protective cover is used to protect the laser ranging sensor 604 and the camera 606 in the installation cavity 6, and the protective cover is connected to the bottom of the drone body 1 by screws so that the protective cover can be quickly disassembled and assembled.

[0020] When in use, when monitoring the growth of crops, the drone body 1 is controlled to fly above the crop planting position, and the piston end of the lifting cylinder 601 is controlled to extend to drive the laser ranging sensor 604 and the camera 606 to move to the outside of the installation cavity 6. The image collected by the camera 606 can be used to obtain the growth of the leaves of the crops, and the data collected by the laser ranging sensor 604 can be used to confirm the height of the crops. The collected data is sent to the display screen of the drone remote control, which is convenient for the staff to compare the growth of crops in different positions in real time and understand the growth of plants in a timely and convenient manner. When it is necessary to detect the soil for planting crops, the piston end of the lifting cylinder 601 is controlled to retract to move the laser ranging sensor 604 and the camera 606 to the outside of the installation cavity 6 to protect the internal laser ranging sensor 604 and the camera 606; then the drone body 1 is controlled to fly to the detection position of the soil for planting crops, and before landing, the output shafts of the drive motors 205 on both sides are controlled to rotate 90°, thereby driving the corresponding installation shaft 201 to rotate, and when the installation shaft 201 rotates, it drives the fixedly connected linkage plate 202 to rotate, and when the linkage plate 202 rotates, The mounting tube 207 is driven to rotate by the torsion spring 206, thereby driving the support frame 3 to rotate synchronously. When the support frame 3 rotates to a vertical state, the support frame 3 contacts the blocking rod 5, so that the support frame 3 cannot continue to rotate. Due to the setting of the torsion spring 206, the mounting shaft 201 can continue to rotate, and then the mounting shaft 201 is driven to rotate by the driving motor 205. When the mounting shaft 201 rotates, it continues to drive the linkage plate 202 to rotate, thereby driving the connecting arm 203 to move, and then synchronously driving the telescopic frame 4 to extend from the inside of the support frame 3 to increase the support height of the drone body 1; At the same time, when the telescopic frame 4 is extended downward, as the distance between the rope wheel 704 and the connecting rod 8 increases, the traction rope 705 is gradually released from the rope wheel 704, thereby causing the rope wheel 704 to rotate. When the rope wheel 704 rotates, it drives the bidirectional screw rod 702 to rotate. The wire grooves at both ends of the bidirectional screw rod 702 are in opposite directions, so that the moving seat 703 on the surface of the bidirectional screw rod 702 moves synchronously towards each other, and the support 710 is driven downward by the connecting arm 2 708, so that the bottom of the plug rod 711 under the support 710 with the temperature and humidity sensor 712 is exposed to the bottom of the bracket 401, and then the drone body 1 is controlled to land at the planting site, and the bracket 401 is used for support. The lengthened support frame 3 increases the support height of the drone body 1, and has sufficient length to ensure that the drone body 1 does not contact the crops, and the exposed plug rod 711 is inserted into the soil in the planting area to detect the temperature and humidity of the soil in real time.

[0021] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A crop growth monitoring device, comprising an unmanned aerial vehicle body (1), wherein landing gears (101) are fixedly provided on both sides of the unmanned aerial vehicle body (1), and characterized in that: A mounting cavity (6) is provided in the middle of the bottom end of the drone body (1), a laser distance measuring sensor (604) and a camera (606) are provided inside the mounting cavity (6), cavities are provided on both sides of the bottom end of the drone body (1), rotating frames (2) are fixedly provided on both sides of the bottom end of the drone body (1), a mounting shaft (201) is rotatably provided inside the rotating frame (2), a connecting assembly is provided on the mounting shaft (201), the mounting shaft (201) is transmission-connected to the support frame (3) via the connecting assembly, and the support frame (3) is provided with a mounting shaft (201) and a mounting shaft (201) is provided on the mounting shaft (201). A telescopic frame (4) is slidably disposed inside the support frame (3), a bracket (401) is fixedly disposed at the bottom end of the telescopic frame (4), a linkage assembly is disposed inside the support frame (3) to drive the telescopic frame (4) to telescope and move inside the support frame (3), a monitoring mechanism (7) for monitoring soil temperature and humidity is disposed on the surface of the bracket (401), the monitoring mechanism (7) comprises a plug rod (711) and a temperature and humidity sensor (712), the plug rod (711) passes through the bracket (401), and the plug rod (711) and the bracket (401) are slidably matched.

2. A crop growth monitoring device according to claim 1, characterized in that: A motor frame (204) is fixedly provided on one side of the rotating frame (2), a driving motor (205) is fixedly provided on the outer side of the motor frame (204), and a transmission shaft of the driving motor (205) is connected to one end of the mounting shaft (201).

3. A crop growth monitoring device according to claim 2, characterized in that: The connection assembly comprises a mounting tube (207) and a torsion spring (206); two mounting tubes (207) are rotatably mounted on the mounting shaft (201); the mounting tubes (207) penetrate the top of the support frame (3); the support frame (3) is fixedly connected to the mounting tubes (207); and two torsion springs (206) are sleeved on the mounting shaft (201).

4. A crop growth monitoring device according to claim 3, characterized in that: The linkage assembly comprises a linkage plate (202) and a connecting arm 1 (203); the linkage plate (202) is arranged in the middle of the mounting shaft (201), and the linkage plate (202) is fixedly connected to the mounting shaft (201); one end of the torsion spring (206) is fixedly connected to the linkage plate (202); the other end of the torsion spring (206) is fixedly connected to the support frame (3); one end of the linkage plate (202) away from the mounting shaft (201) is rotatably connected to one end of the connecting arm 1 (203); and the other end of the connecting arm 1 (203) is rotatably connected to the top of the telescopic frame (4).

5. A crop growth monitoring device according to claim 4, characterized in that: A blocking rod (5) is fixedly mounted on one side of the rotating frame (2); when the supporting frame (3) rotates to a vertical state, the supporting frame (3) fits the blocking rod (5).

6. A crop growth monitoring device according to claim 4, characterized in that: A connecting plate (405) is provided on the top of the telescopic frame (4), a guide groove (301) corresponding to the connecting plate (405) is provided on the inner side of the support frame (3), a rotating seat (406) is fixedly provided on one side of the connecting plate (405), and the rotating seat (406) is rotatably connected to the other end of the first connecting arm (203).

7. The crop growth monitoring device according to claim 1, characterized in that: A lifting cylinder (601) is fixedly provided inside the installation cavity (6); a connecting frame (602) is fixedly provided at the piston end of the lifting cylinder (601); a mounting seat 1 (603) is fixedly provided at one end of the connecting frame (602); the laser ranging sensor (604) is arranged at the bottom end of the mounting seat 1 (603); a mounting seat 2 (605) is fixedly provided at the other end of the connecting frame (602); and the camera (606) is arranged at the bottom end of the mounting seat 2 (605).

8. A crop growth monitoring device according to claim 7, characterized in that: A protective tube (706) is fixedly provided at the top end of the bracket (401) and is slidably matched with the insertion rod (711). A driving assembly is provided on the bracket (401) so that the telescopic frame (4) synchronously drives the insertion rod (711) to move up and down when the telescopic frame (4) is telescoped inside the support frame (3).

9. A crop growth monitoring device according to claim 8, characterized in that: The driving assembly comprises a vertical plate (701), a support (710) and a rope winding wheel (704), wherein two vertical plates (701) are provided, wherein the vertical plates (701) are fixedly arranged at the top end of the bracket (401), and a bidirectional screw rod (702) is rotatably arranged between the two vertical plates (701), wherein the wire grooves at both ends of the bidirectional screw rod (702) are in opposite directions, and a rope winding wheel (704) is fixedly arranged in the middle of the bidirectional screw rod (702), and two movable seats (703) are threadedly installed on the surface of the bidirectional screw rod (702), and the bracket A support (710) is arranged above (401), and the support (710) is elastically connected to the bracket (401) through a spring (713). A second connecting arm (708) is rotatably arranged between the movable seat (703) and the support (710). The insertion rod (711) is fixedly arranged at the bottom end of the support (710). A connecting rod (8) is fixedly installed on the inner side of the support frame (3). A traction rope (705) is connected to the rope winding wheel (704), and the top end of the traction rope (705) is fixedly connected to the connecting rod (8).

10. The crop growth monitoring device according to claim 9, characterized in that: The bottom end of the movable seat (703) is fixedly provided with an articulated seat 1 (707), and the articulated seat 1 (707) is rotatably connected to the top of the connecting arm 2 (708). The top end of the support (710) is fixedly provided with two articulated seats 2 (709), and the articulated seat 2 (709) is rotatably connected to the bottom of the connecting arm 2 (708).

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