Auxiliary device and method for farmland monitoring
By designing an auxiliary device to achieve camera height adjustment and automatic cleaning, the problem of camera being easily damaged in natural environments is solved, and the reliability of monitoring and image quality are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-10
- Publication Date
- 2026-03-27
Smart Images
Figure CN121739249A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of cultivated land protection and monitoring, and particularly relates to an auxiliary device and method for cultivated land monitoring. BACKGROUND
[0002] With the increasing demand for global food security and ecological environment protection, cultivated land protection has become the core link of the national sustainable development strategy. Continuous and accurate dynamic monitoring of cultivated land resources is the key technical support for realizing effective protection, monitoring the changes in the shape of cultivated land, and grasping the quality of soil and the growth of crops. At present, the "sky-ground" integrated three-dimensional monitoring network composed of remote sensing satellites, unmanned aerial vehicle inspection and various ground monitoring devices (such as soil sensors, environmental monitoring stations, cameras, etc.) deployed in the field has gradually formed and been put into application. Among them, the ground monitoring device (camera) plays an irreplaceable role in providing localized accurate information due to its high spatio-temporal resolution and real-time continuous data acquisition capability.
[0003] However, cultivated land is mostly distributed in open areas, and the camera is often directly exposed to the natural environment, and the height of the camera is mostly fixed, so the lens surface of the camera is easy to be scratched or adsorb dust. SUMMARY
[0004] Therefore, the purpose of the present application is to provide an auxiliary device and method for cultivated land monitoring to solve the problem that the camera is often directly exposed to the natural environment, and the height of the camera is mostly fixed, so the lens surface of the camera is easy to be scratched or adsorb dust in the prior art.
[0005] The present application is achieved by the following technical solutions: An auxiliary device for cultivated land monitoring, comprising a mounting plate and a moving assembly for moving the mounting plate, the upper and lower sides of the mounting plate are respectively fixedly connected with a shell and a cover, a screw rod is rotatably connected to the mounting plate, a first through hole matched with the screw rod is formed in the cover, the screw rod passes through the first through hole, a driving assembly for driving the screw rod to rotate is fixedly connected in the shell, a sleeve is threadedly connected to the screw rod, support rods are arranged on both sides of the sleeve, the two support rods are fixedly connected to the cover, a limiting rod is fixedly connected to the sleeve, second through holes matched with the support rods are formed at both ends of the limiting rod, the two support rods pass through the corresponding second through holes, a support plate is fixedly connected to the upper end of the sleeve, and a camera is fixedly connected to the support plate.
[0006] Further, the driving assembly comprises a first motor fixedly connected in the shell, the lower end of the screw rod is fixedly connected with a first gear, a second gear is rotatably connected to the mounting plate, the second gear is engaged with the first gear, a first recess is formed in the center of the second gear, a plurality of first protrusions are fixedly connected to the inner side wall of the first recess, a first centrifugal sleeve is fixedly connected to the output shaft of the first motor, a first sliding groove is formed in the first centrifugal sleeve, a first sliding block is slidably connected in the first sliding groove, a first spring is arranged between the first sliding block and the side wall of the first sliding groove, the two ends of the first spring are fixedly connected with the first sliding block and the side wall of the first sliding groove respectively, and the first sliding block is located in the first sliding groove as a whole when the first spring is in a natural state.
[0007] Further, a third gear is arranged between the cover and the mounting plate, the third gear is rotatably connected to the mounting plate and has a third through hole adapted to the screw rod in the center, the screw rod passes through the third through hole, the third gear is in transmission connection with the screw rod, a plurality of arc-shaped grooves are formed in the third gear, a plurality of convex shafts are slidably connected in the arc-shaped grooves, a sliding rod is fixedly connected to one end of each of the plurality of convex shafts located outside the arc-shaped groove, a first limiting groove adapted to the sliding rod is formed in the cover, the sliding rod is slidably connected in the first limiting groove, and a supporting leg is fixedly connected to the end of the sliding rod away from the convex shaft.
[0008] Further, a first sprocket is fixedly connected to the screw rod, a transmission shaft is rotatably connected to the mounting plate, a second sprocket and a fourth gear engaged with the third gear are fixedly connected to the transmission shaft, the number of teeth of the fourth gear is less than that of the third gear, and the first sprocket and the second sprocket are engaged and tensioned with a first chain.
[0009] Further, a limiting plate is arranged at the upper end of each of the two supporting rods, the upper end of each of the two supporting rods is fixedly connected with the side wall of the limiting plate, a fourth through hole adapted to the sleeve is formed in the limiting plate, and the sleeve passes through the fourth through hole.
[0010] Further, a first rotating shaft is rotatably connected to the limiting plate, a wind cup is fixedly connected to the upper end of the first rotating shaft and a fifth gear is in transmission connection with the lower end of the first rotating shaft, a second rotating shaft is arranged on one side of the first rotating shaft, the two ends of the second rotating shaft are rotatably connected with the side walls of the limiting plate and the cover respectively, a sixth gear engaged with the fifth gear is fixedly connected to the upper end of the second rotating shaft and a seventh gear is fixedly connected to the lower end of the second rotating shaft, and an eighth gear engaged with the seventh gear is in transmission connection with the screw rod.
[0011] Further, the center of the fifth gear is provided with a second groove, a plurality of second protrusions are fixedly connected to the inner side wall of the second groove, the lower end of the first rotating shaft is fixedly connected with a second centrifugal sleeve, the second centrifugal sleeve is provided with a second sliding groove, a second sliding block is slidably connected in the second sliding groove, a second spring is arranged between the second sliding block and the side wall of the second sliding groove, and the two ends of the second spring are fixedly connected with the second sliding block and the side wall of the second sliding groove respectively.
[0012] Further, the cover is provided with a second limiting groove for accommodating the eighth gear, a limiting ring is slidably connected in the second limiting groove, the limiting ring is sleeved on the screw rod and abuts against the bottom wall of the eighth gear, a third spring is arranged between the limiting ring and the side wall of the second limiting groove, and the two ends of the third spring are fixedly connected with the limiting ring and the side wall of the second limiting groove respectively, a conical clutch head is fixedly connected to the screw rod, a clamping groove matched with the conical clutch head is formed in the eighth gear, the lower end of the sleeve is fixedly connected with a pressing ring, the outer diameter of the conical clutch head is smaller than the inner diameter of the pressing ring, and the conical clutch head is clamped in the clamping groove when the third spring is in a natural state.
[0013] Further, the limiting plate is provided with a fifth through hole matched with the camera, a protective cover is fixedly connected in the fifth through hole, a third rotating shaft is rotatably connected to the protective cover, the upper end of the third rotating shaft is fixedly connected with a mounting shell and the lower end is fixedly connected with a third sprocket, a sponge strip is fixedly connected in the mounting shell and a dry cloth strip is fixedly connected to the outer side wall of the mounting shell, the sponge strip and the dry cloth strip can be tightly attached to the lens of the camera, the protective cover is provided with a first drainage hole, the mounting shell is provided with a second drainage hole, a fourth sprocket is fixedly connected to the second rotating shaft, and the third sprocket and the fourth sprocket are meshed and tensioned with a second chain.
[0014] An auxiliary method for monitoring ploughing, S1: the moving assembly carries the mounting plate to the ploughing area to be monitored.
[0015] S2: the driving assembly drives the screw rod to rotate clockwise, and drives the sleeve and the camera to rise to the highest set height during the clockwise rotation of the screw rod.
[0016] S3: the camera shoots pictures and videos and wirelessly transmits them to the monitoring terminal.
[0017] S4: When the environmental wind speed reaches the preset threshold value, the wind cup is pushed by the wind force to drive the first rotating shaft to rotate counterclockwise, and the second sliding block in the second centrifugal sleeve slides outward under the action of centrifugal force to contact and abut against the second protruding block in the second groove, and drive the fifth gear to rotate counterclockwise, further drive the sixth gear, the second rotating shaft and the seventh gear to rotate clockwise, further drive the eighth gear and the screw to rotate counterclockwise, and further drive the sleeve and the camera to continuously descend.
[0018] S5: When the sleeve descends to the lowest set height, the compression ring contacts and presses the eighth gear to make the clamping groove disengage from the conical clutch head, the eighth gear idles, and the screw stops counterclockwise rotation.
[0019] The beneficial effects of the present application are: The auxiliary device and method for farmland monitoring can carry the mounting plate to the farmland area to be monitored through the moving assembly. Then the driving assembly drives the screw to rotate clockwise, and the sleeve and the camera are lifted during the clockwise rotation of the screw until the set height. The camera shoots pictures and videos and wirelessly transmits them to the monitoring terminal. When the environmental wind speed reaches the preset threshold value or the shooting is completed, the driving assembly drives the screw to rotate counterclockwise, and the sleeve and the camera are lowered during the counterclockwise rotation of the screw until the lowest set height. Compared with the prior art, the height of the camera can be flexibly adjusted according to the height of crops and weather changes, the optimal observation angle is obtained, and the lens surface of the camera is protected, thereby reducing the probability of scratching or adsorbing dust on the lens surface of the camera.
[0020] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following specification and drawings. The objects and other advantages of the present application can be realized and obtained by means of the following specification. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 The structure of the present application is shown in the figure; Figure 2 The structure of the present application is shown in the figure Figure One ; Figure 3 The structure of the present application is shown in the figure Figure 2 The structure of the present application is shown in the figure Figure 4 The structure of the present application is shown in the figure Figure Two ; Figure 5 The structure of the present application is shown in the figure Figure 6 Figure is the connection diagram of the first rotating shaft, the wind cup and the fifth gear of the present application; Figure 7 Figure is the connection diagram of the third rotating shaft and the mounting shell of the present application.
[0022] In the figure: 1, mounting plate; 2, moving assembly; 3, shell; 4, cover; 5, screw rod; 6, first through hole; 7, driving assembly; 8, sleeve; 9, support rod; 10, limiting rod; 11, second through hole; 12, support plate; 13, camera; 14, first motor; 15, first gear; 16, second gear; 17, first recess; 18, first protrusion; 19, first centrifugal sleeve; 20, first sliding slot; 21, first sliding block; 22, first spring; 23, third gear; 24, third through hole; 25, arc-shaped slot; 26, protruding shaft; 27, sliding rod; 28, first limiting slot; 29, support leg; 30, first sprocket; 31, transmission shaft; 32, second sprocket; 33, fourth gear; 34, first chain; 35, limiting plate; 36, fourth through hole; 37, first rotating shaft; 38, wind cup; 39, fifth gear; 40, second rotating shaft; 41, sixth gear; 42, seventh gear; 43, eighth gear; 44, second recess; 45, second protrusion; 46, second centrifugal sleeve; 47, second sliding slot; 48, second sliding block; 49, second spring; 50, second limiting slot; 51, limiting ring; 52, third spring; 53, conical clutch head; 54, clamping groove; 55, pressing ring; 56, fifth through hole; 57, protective cover; 58, third rotating shaft; 59, mounting shell; 60, third sprocket; 61, sponge strip; 62, dry cloth strip; 63, first drainage hole; 64, second drainage hole; 65, fourth sprocket; 66, second chain; 67, second motor; 68, omni-directional wheel. DETAILED DESCRIPTION
[0023] In order to make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.
[0025] It should be noted that similar reference numerals and letters refer to like items in the accompanying drawings, and once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
[0026] In the foregoing description of the present application, it should be noted that the terms "one side", "the other side" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed during use, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0027] In addition, the terms "same" and the like do not mean that the parts must be absolutely the same, but there can be slight differences. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.
[0028] Embodiment one: Please refer to Figures 1-7 The present application provides a technical scheme: an auxiliary device for farmland monitoring, comprising a mounting plate 1 and a moving assembly 2 for moving the mounting plate 1, the mounting plate 1 is fixedly connected with a shell 3 and a cover 4 on the upper and lower sides respectively, the mounting plate 1 is rotatably connected with a screw rod 5, the cover 4 is provided with a first through hole 6 matched with the screw rod 5, the screw rod 5 passes through the first through hole 6, the shell 3 is fixedly connected with a driving assembly 7 for driving the screw rod 5 to rotate, the screw rod 5 is threadedly connected with a sleeve 8, the sleeve 8 is provided with a supporting rod 9 on both sides, the two supporting rods 9 are fixedly connected on the cover 4, the sleeve 8 is fixedly connected with a limiting rod 10, the limiting rod 10 is provided with a second through hole 11 matched with the supporting rod 9 at both ends, the two supporting rods 9 pass through the corresponding second through holes 11 respectively, the upper end of the sleeve 8 is fixedly connected with a supporting plate 12, and the supporting plate 12 is fixedly connected with a camera 13.
[0029] The driving assembly 7 comprises a first motor 14 fixedly connected in the shell 3, the lower end of the screw rod 5 is fixedly connected with a first gear 15, the mounting plate 1 is rotatably connected with a second gear 16, the second gear 16 is engaged with the first gear 15, the center of the second gear 16 is provided with a first groove 17, a plurality of first protrusions 18 are fixedly connected on the inner side wall of the first groove 17, a first centrifugal sleeve 19 is fixedly connected on the output shaft of the first motor 14, a first sliding groove 20 is formed in the first centrifugal sleeve 19, a first sliding block 21 is slidably connected in the first sliding groove 20, a first spring 22 is arranged between the first sliding block 21 and the side wall of the first sliding groove 20, the two ends of the first spring 22 are fixedly connected with the first sliding block 21 and the side wall of the first sliding groove 20 respectively, when the first spring 22 is in a natural state, the first sliding block 21 is located in the first sliding groove 20 as a whole.
[0030] The moving assembly 2 comprises a controller and a plurality of second motors 67 fixedly connected on the shell 3, a plurality of omnidirectional wheels 68 are fixedly connected on the output shafts of the second motors 67, the signal input ends of the first motor 14 and the second motors 67 are electrically connected with the signal output end of the controller.
[0031] Working principle: by threadedly connecting the sleeve 8 on the screw rod 5, the two sides of the sleeve 8 are provided with support rods 9, the two support rods 9 are fixedly connected on the cover body 4, a limiting rod 10 is fixedly connected on the sleeve 8, the two ends of the limiting rod 10 are provided with second through holes 11 matched with the support rods 9, the two support rods 9 pass through the corresponding second through holes 11 respectively, the upper end of the sleeve 8 is fixedly connected with a support plate 12, and a camera 13 is fixedly connected on the support plate 12. The second through holes 11 on the support rods 9 and the limiting rod 10 on the two sides of the sleeve 8 jointly limit the sleeve 8 to move only in the vertical direction. Therefore, when the screw rod 5 rotates clockwise, the sleeve 8 and the camera 13 are lifted until the highest set height. When the screw rod 5 rotates counterclockwise, the sleeve 8 and the camera 13 are lowered until the lowest set height.
[0032] By opening a first groove 17 in the center of the second gear 16, a plurality of first protrusions 18 are fixedly connected to the inner side wall of the first groove 17, a first centrifugal sleeve 19 is fixedly connected to the output shaft of the first motor 14, a first sliding groove 20 is opened on the first centrifugal sleeve 19, a first sliding block 21 is slidably connected in the first sliding groove 20, a first spring 22 is arranged between the first sliding block 21 and the side wall of the first sliding groove 20, and the two ends of the first spring 22 are fixedly connected to the first sliding block 21 and the side wall of the first sliding groove 20 respectively. When the first spring 22 is in a natural state, the first sliding block 21 is located in the first sliding groove 20 as a whole. When the rotational speed of the output shaft of the first motor 14 exceeds the set value, the first sliding block 21 protrudes from the first sliding groove 20 against the tension of the first spring 22 under the action of centrifugal force, at this time the first spring 22 is in a stretched state, and the part of the first sliding block 21 protruding from the first sliding groove 20 abuts against the side wall of one of the first protrusions 18, thereby driving the second gear 16 to rotate synchronously. When the output shaft of the first motor 14 stops rotating or rotates at a low speed, the first sliding block 21 is located in the first sliding groove 20 as a whole under the action of the tension of the first spring 22, at this time the first spring 22 is in a natural stretched state.
[0033] By fixedly connecting the first gear 15 to the lower end of the screw rod 5, rotatably connecting the second gear 16 to the mounting plate 1, and engaging the second gear 16 with the first gear 15, when the rotational speed of the output shaft of the first motor 14 exceeds the set value, the clockwise rotation of the output shaft of the first motor 14 will drive the second gear 16 to rotate clockwise, and in turn drive the first gear 15 and the screw rod 5 to rotate counterclockwise; the counterclockwise rotation of the output shaft of the first motor 14 will drive the second gear 16 to rotate counterclockwise, and in turn drive the first gear 15 and the screw rod 5 to rotate clockwise.
[0034] Method for using the device: Step one: control the output shaft of the plurality of second motors 67 to rotate by the controller, drive the corresponding omnidirectional wheels 68 to rotate, and carry the mounting plate 1 to the area to be monitored.
[0035] Step two: control the output shaft of the first motor 14 to rotate counterclockwise by the controller, when the rotational speed of the output shaft of the first motor 14 exceeds the set value, the first sliding block 21 protrudes from the first sliding groove 20 against the tension of the first spring 22 under the action of centrifugal force, at this time the first spring 22 is in a stretched state, and the part of the first sliding block 21 protruding from the first sliding groove 20 abuts against the side wall of one of the first protrusions 18, thereby driving the second gear 16 to rotate counterclockwise, and in turn driving the first gear 15 and the screw rod 5 to rotate clockwise. In the process of clockwise rotation of the screw rod 5, the sleeve 8 and the camera 13 are lifted until the set height.
[0036] Step three: the camera 13 shoots pictures and videos, and wirelessly transmits them to the monitoring terminal.
[0037] Step four: when the environmental wind speed reaches the preset threshold or the shooting is completed, the output shaft of the first motor 14 is controlled to rotate clockwise by the controller, and when the rotation speed of the output shaft of the first motor 14 exceeds the set value, the first sliding block 21 overcomes the tension of the first spring 22 and partially protrudes from the first sliding groove 20 under the action of centrifugal force, at this time the first spring 22 is in a stretched state, and the part of the first sliding block 21 protruding from the first sliding groove 20 abuts against the side wall of one of the first protrusions 18, thereby driving the second gear 16 to rotate clockwise, driving the first gear 15 and the screw rod 5 to rotate counterclockwise, and driving the sleeve 8 and the camera 13 to descend in the counterclockwise rotation process of the screw rod 5 until the lowest set height.
[0038] Technical effect: Compared with the prior art, the height of the camera 13 can be flexibly adjusted according to the height of crops and weather changes, the optimal observation angle can be obtained, and the lens surface of the camera 13 is protected, thereby reducing the probability of scratching or adsorbing dust on the lens surface of the camera 13.
[0039] The output shafts of the plurality of second motors 67 are controlled to rotate by the controller, thereby driving the corresponding omnidirectional wheels 68 to rotate and carrying the mounting plate 1 to the farmland area to be monitored. The mounting plate 1 can be quickly deployed to different plots or moved along a preset route for monitoring as needed, thereby improving the monitoring coverage range and deployment flexibility of a single device.
[0040] In the embodiment, a third gear 23 is arranged between the cover 4 and the mounting plate 1, the third gear 23 is rotationally connected to the mounting plate 1 and has a third through hole 24 with a third gear 23 in the center, the screw rod 5 passes through the third through hole 24, the third gear 23 is in transmission connection with the screw rod 5, a plurality of arc-shaped grooves 25 are formed in the third gear 23, a plurality of convex shafts 26 are slidably connected in the arc-shaped grooves 25, a plurality of slide rods 27 are fixedly connected to one ends of the convex shafts 26 located outside the arc-shaped grooves 25, a first limiting groove 28 is formed in the cover 4 and matched with the slide rods 27, the slide rods 27 are slidably connected in the first limiting groove 28, and supporting feet 29 are fixedly connected to one ends of the slide rods 27 away from the convex shafts 26.
[0041] A first sprocket 30 is fixedly connected to the screw rod 5, a transmission shaft 31 is rotationally connected to the mounting plate 1, a second sprocket 32 and a fourth gear 33 meshing with the third gear 23 are fixedly connected to the transmission shaft 31, the number of teeth of the fourth gear 33 is less than that of the third gear 23, and a first chain 34 is meshed and tensioned on the first sprocket 30 and the second sprocket 32.
[0042] Technical effects: By setting the third gear 23 between the cover 4 and the mounting plate 1, the third gear 23 is rotationally connected to the mounting plate 1, and the center is provided with a third through hole 24 matched with the screw rod 5, the screw rod 5 passes through the third through hole 24, the third gear 23 is in transmission connection with the screw rod 5, a plurality of arc-shaped grooves 25 are formed on the third gear 23, a plurality of convex shafts 26 are slidably connected in the arc-shaped grooves 25, a plurality of slide rods 27 are fixedly connected to one end of the convex shafts 26 located outside the arc-shaped grooves 25, a first limiting groove 28 matched with the slide rod 27 is formed on the cover 4, the slide rod 27 is slidably connected in the first limiting groove 28, and a supporting leg 29 is fixedly connected to one end of the slide rod 27 away from the convex shaft 26. The first sprocket 30 is fixedly connected to the screw rod 5, the transmission shaft 31 is rotationally connected to the mounting plate 1, the second sprocket 32 and the fourth gear 33 meshing with the third gear 23 are fixedly connected to the transmission shaft 31, the number of teeth of the fourth gear 33 is less than that of the third gear 23, and the first chain 34 is meshed and tensioned on the first sprocket 30 and the second sprocket 32. The tooth number ratio of the fourth gear 33 to the third gear 23 is 1:50, that is, when the sleeve 8 and the camera 13 reach the highest set position, the supporting leg 29 reaches the farthest set position.
[0043] During the clockwise rotation of the screw rod 5, the first sprocket 30 is driven to rotate clockwise, the first chain 34, the second sprocket 32 and the fourth gear 33 are driven to rotate clockwise during the clockwise rotation of the first sprocket 30, and the third gear 23 is driven to rotate counterclockwise, when the third gear 23 rotates counterclockwise, the slide rod 27 is pushed to slide radially outward along the first limiting groove 28 formed on the cover 4 through the relative movement of the convex shaft 26 in the arc-shaped groove 25, thereby driving the supporting leg 29 fixed to the end of the slide rod 27 to move away from the center of the third gear 23. And during the clockwise rotation of the screw rod 5, the sleeve 8 and the camera 13 are lifted, when the sleeve 8 and the camera 13 reach the highest set position, the supporting leg 29 reaches the farthest set position. The supporting leg 29 expands and recovers automatically synchronously with the lifting and lowering action of the camera 13, which expands the supporting bottom area and enhances the overall stability and wind resistance of the camera 13 when working at a high position.
[0044] The screw rod 5 rotates counterclockwise to drive the first sprocket 30 to rotate counterclockwise, and the first sprocket 30 drives the first chain 34, the second sprocket 32 and the fourth gear 33 to rotate counterclockwise, and drives the third gear 23 to rotate clockwise. When the third gear 23 rotates clockwise, the relative movement of the convex shaft 26 in the arc-shaped groove 25 pulls back the slide rod 27 to slide radially inward along the first limiting groove 28 formed on the cover body 4, thereby driving the support leg 29 fixed to the end of the slide rod 27 to approach the center of the third gear 23. And the sleeve 8 and the camera 13 are lowered during the clockwise rotation of the screw rod 5, and when the sleeve 8 and the camera 13 reach the lowest set position, the support leg 29 reaches the nearest set position. After the support leg 29 is retracted, it remains compact, which facilitates the transfer of the moving assembly 2 to another location.
[0045] In the embodiment: the upper ends of the two support rods 9 are provided with a limiting plate 35, the upper ends of the two support rods 9 are fixedly connected with the side wall of the limiting plate 35, a fourth through hole 36 adapted to the sleeve 8 is formed on the limiting plate 35, and the sleeve 8 passes through the fourth through hole 36.
[0046] A first rotating shaft 37 is rotatably connected to the limiting plate 35, the upper end of the first rotating shaft 37 is fixedly connected with a wind cup 38, and the lower end is drivingly connected with a fifth gear 39, one side of the first rotating shaft 37 is provided with a second rotating shaft 40, both ends of the second rotating shaft 40 are rotatably connected with the limiting plate 35 and the side wall of the cover body 4, the upper end of the second rotating shaft 40 is fixedly connected with a sixth gear 41 engaged with the fifth gear 39, and the lower end is fixedly connected with a seventh gear 42, and the eighth gear 43 engaged with the seventh gear 42 is drivingly connected to the screw rod 5.
[0047] A second recess 44 is formed in the center of the fifth gear 39, a plurality of second protrusions 45 are fixedly connected to the inner side wall of the second recess 44, a second centrifugal sleeve 46 is fixedly connected to the lower end of the first rotating shaft 37, a second sliding groove 47 is formed on the second centrifugal sleeve 46, a second sliding block 48 is slidingly connected in the second sliding groove 47, a second spring 49 is arranged between the second sliding block 48 and the side wall of the second sliding groove 47, and both ends of the second spring 49 are fixedly connected with the second sliding block 48 and the side wall of the second sliding groove 47. When the second spring 49 is in a natural state, the second sliding block 48 is located in the second sliding groove 47.
[0048] Technical effects: by arranging the limiting plate 35 on the upper ends of the two support rods 9, the upper ends of the two support rods 9 are fixedly connected with the side wall of the limiting plate 35, a fourth through hole 36 adapted to the sleeve 8 is formed on the limiting plate 35, and the sleeve 8 passes through the fourth through hole 36. The stability of the sleeve 8 and the camera 13 during the rising process is improved.
[0049] The first rotating shaft 37 is rotatably connected to the limiting plate 35, the upper end of the first rotating shaft 37 is fixedly connected to the wind cup 38, and the lower end is drivingly connected to the fifth gear 39, one side of the first rotating shaft 37 is provided with the second rotating shaft 40, both ends of the second rotating shaft 40 are rotatably connected to the limiting plate 35 and the side wall of the cover body 4 respectively, the upper end of the second rotating shaft 40 is fixedly connected to the sixth gear 41 which is engaged with the fifth gear 39, and the lower end is fixedly connected to the seventh gear 42, and the screw rod 5 is drivingly connected to the eighth gear 43 which is engaged with the seventh gear 42.
[0050] The center of the fifth gear 39 is provided with the second groove 44, a plurality of second protrusions 45 are fixedly connected to the inner side wall of the second groove 44, the lower end of the first rotating shaft 37 is fixedly connected to the second centrifugal sleeve 46, the second centrifugal sleeve 46 is provided with the second sliding groove 47, the second sliding groove 47 is slidingly connected to the second sliding block 48, the second spring 49 is arranged between the second sliding block 48 and the side wall of the second sliding groove 47, both ends of the second spring 49 are fixedly connected to the second sliding block 48 and the side wall of the second sliding groove 47 respectively, and when the second spring 49 is in a natural state, the second sliding block 48 is located in the second sliding groove 47.
[0051] When the wind speed is low, the second sliding block 48 in the second centrifugal sleeve 46 is located in the second sliding groove 47 under the action of the pulling force of the second spring 49, does not contact the inner wall of the second groove 44 of the fifth gear 39, and the wind cup 38 rotates counterclockwise. When the wind speed increases beyond a set value, the second sliding block 48 partially protrudes from the second sliding groove 47 under the action of centrifugal force and overcomes the pulling force of the second spring 49, at this time, the second spring 49 is in a stretched state, the part of the second sliding block 48 protruding from the second sliding groove 47 abuts against the side wall of one of the second protrusions 45, drives the fifth gear 39 to rotate counterclockwise, drives the sixth gear 41, the second rotating shaft 40 and the seventh gear 42 to rotate clockwise, and drives the eighth gear 43 and the screw rod 5 to rotate counterclockwise, drives the sleeve 8 and the camera 13 to descend in the counterclockwise rotation process of the screw rod 5, until the lowest set height. Automatic perception and response to strong wind environment are realized, without external power or signal instruction, the camera 13 can be independently lowered to a low-risk height in bad weather, effectively reducing the probability of scratching or adsorbing dust on the lens surface of the camera 13 by sand carried by strong wind.
[0052] In this embodiment: the cover 4 is provided with a second limiting groove 50 for accommodating the eighth gear 43, the second limiting groove 50 is slidably connected with a limiting ring 51, the limiting ring 51 is sleeved on the screw rod 5 and abuts against the bottom wall of the eighth gear 43, the third spring 52 is arranged between the limiting ring 51 and the side wall of the second limiting groove 50, the two ends of the third spring 52 are fixedly connected with the limiting ring 51 and the side wall of the second limiting groove 50 respectively, the taper clutch head 53 is fixedly connected on the screw rod 5, the clamping groove 54 matched with the taper clutch head 53 is arranged on the eighth gear 43, the lower end of the sleeve 8 is fixedly connected with the pressing ring 55, the outer diameter of the taper clutch head 53 is smaller than the inner diameter of the pressing ring 55, and the taper clutch head 53 is clamped in the clamping groove 54 when the third spring 52 is in a natural state.
[0053] Technical effects: through the second limiting groove 50 for accommodating the eighth gear 43 arranged on the cover 4, the second limiting groove 50 is slidably connected with the limiting ring 51, the limiting ring 51 is sleeved on the screw rod 5 and abuts against the bottom wall of the eighth gear 43, the third spring 52 is arranged between the limiting ring 51 and the side wall of the second limiting groove 50, the two ends of the third spring 52 are fixedly connected with the limiting ring 51 and the side wall of the second limiting groove 50 respectively, the taper clutch head 53 is fixedly connected on the screw rod 5, the clamping groove 54 matched with the taper clutch head 53 is arranged on the eighth gear 43, the lower end of the sleeve 8 is fixedly connected with the pressing ring 55, the outer diameter of the taper clutch head 53 is smaller than the inner diameter of the pressing ring 55, and the taper clutch head 53 is clamped in the clamping groove 54 when the third spring 52 is in a natural state.
[0054] Under the action of the third spring 52, the limiting ring 51 pushes the eighth gear 43 upwards, so that the clamping groove 54 at the top of the eighth gear 43 is tightly clamped with the taper clutch head 53 fixedly connected on the screw rod 5, and the power transmission from the seventh gear 42 to the eighth gear 43 and then to the screw rod 5 is realized.
[0055] When the camera 13 reaches the lowest set height under the wind driving (or under the driving of the first motor 14 to descend), the pressing ring 55 fixedly connected at the lower end of the sleeve 8 contacts the upper surface of the eighth gear 43 and continues to press downwards. The eighth gear 43 moves downwards along the second limiting groove 50 against the elastic force of the third spring 52, causing the clamping groove 54 to be disengaged from the taper clutch head 53. At this time, the eighth gear 43 idles under the driving of the seventh gear 42, the screw rod 5 stops counterclockwise rotation, and the camera 13 stops descending. After the descending action stops, the transmission chain is disconnected, reducing the wear or damage caused by long-term stress on the transmission system or attempts to “hard turn” under the continuous action of strong wind. When the wind decreases and needs to rise, the first motor 14 can normally drive the screw rod 5 to rotate clockwise.
[0056] In this embodiment: the limiting plate 35 is provided with a fifth through hole 56 matched with the camera 13, a protective cover 57 is fixedly connected in the fifth through hole 56, a third rotating shaft 58 is rotatably connected to the protective cover 57, an installation shell 59 is fixedly connected to the upper end of the third rotating shaft 58, and a third sprocket 60 is fixedly connected to the lower end of the third rotating shaft 58, a sponge strip 61 is fixedly connected in the installation shell 59, and a dry cloth strip 62 is fixedly connected to the outer side wall of the installation shell 59, the sponge strip 61 and the dry cloth strip 62 can be tightly attached to the lens of the camera 13, the protective cover 57 is provided with a first drainage hole 63, the installation shell 59 is provided with a second drainage hole 64, a fourth sprocket 65 is fixedly connected to the second rotating shaft 40, and the third sprocket 60 and the fourth sprocket 65 are meshed and tensioned with a second chain 66.
[0057] Technical effects: by providing the limiting plate 35 with a fifth through hole 56 matched with the camera 13, fixing a protective cover 57 in the fifth through hole 56, rotatably connecting a third rotating shaft 58 to the protective cover 57, fixedly connecting an installation shell 59 to the upper end of the third rotating shaft 58, fixedly connecting a third sprocket 60 to the lower end of the third rotating shaft 58, fixedly connecting a sponge strip 61 in the installation shell 59, and fixedly connecting a dry cloth strip 62 to the outer side wall of the installation shell 59, the sponge strip 61 and the dry cloth strip 62 can be tightly attached to the lens of the camera 13, the protective cover 57 is provided with a first drainage hole 63, the installation shell 59 is provided with a second drainage hole 64, a fourth sprocket 65 is fixedly connected to the second rotating shaft 40, and the third sprocket 60 and the fourth sprocket 65 are meshed and tensioned with a second chain 66.
[0058] When the wind speed increases beyond the set value, the second sliding block 48 overcomes the tension of the second spring 49 and partially protrudes from the second sliding groove 47 under the action of centrifugal force, at this time the second spring 49 is in a stretched state, the part of the second sliding block 48 protruding from the second sliding groove 47 abuts against the side wall of one of the second protrusions 45, driving the fifth gear 39 to rotate counterclockwise, driving the sixth gear 41, the second rotating shaft 40 and the fourth sprocket 65 to rotate clockwise, driving the second chain 66 and the third sprocket 60 to rotate clockwise, and further driving the third rotating shaft 58, the installation shell 59, the sponge strip 61 and the dry cloth strip 62 to rotate clockwise. The sponge strip 61 and the dry cloth strip 62 alternately wipe the surface of the lens of the camera 13. The sponge strip 61 can wet and adsorb dust and insect stains, and the dry cloth strip 62 can wipe and further clean.
[0059] During the cleaning process, waste liquid may be generated, which can be discharged in time through the first drainage hole 63 on the protective cover 57 and the second drainage hole 64 on the installation shell 59, reducing the probability of water accumulation affecting the cleaning effect or causing corrosion.
[0060] The automatic and effective cleaning solution is provided for the problem that the lens is easily polluted by the dust, rainwater and insect secretions in the farmland environment, and the sustainability and reliability of the monitoring image quality are significantly improved.
[0061] The adverse environmental factor of "strong wind" is ingeniously converted into the energy driving the cleaning action, achieving "turning harm into benefit", without the need for additional cleaning motor or battery power consumption.
[0062] Embodiment two: An auxiliary method for farmland monitoring, comprising an auxiliary device for farmland monitoring, S1: the moving assembly 2 carries the mounting plate 1 to the farmland area to be monitored.
[0063] S2: the driving assembly 7 drives the screw 5 to rotate clockwise, and the sleeve 8 and the camera 13 are lifted to a set height during the clockwise rotation of the screw 5.
[0064] S3: the camera 13 shoots pictures and videos and wirelessly transmits them to the monitoring terminal.
[0065] S4: when the environmental wind speed reaches a preset threshold, the wind cup 38 is pushed by the wind to drive the first rotating shaft 37 to rotate counterclockwise, and the second sliding block 48 in the second centrifugal sleeve 46 slides outward under the action of centrifugal force when the rotating speed exceeds the preset threshold, overcoming the resistance of the second spring 49, contacting and abutting against the second protruding block 45 in the second groove 44, and driving the fifth gear 39 to rotate counterclockwise, further driving the sixth gear 41, the second rotating shaft 40 and the seventh gear 42 to rotate clockwise, and further driving the eighth gear 43 and the screw 5 to rotate counterclockwise, and further driving the sleeve 8 and the camera 13 to continuously descend.
[0066] S5: after the sleeve 8 descends to the lowest set height, the compression ring 55 contacts and presses the eighth gear 43, overcoming the elastic force of the third spring 52 to make the clamping groove 54 disengage from the conical clutch head 53, the eighth gear 43 idles, and the screw 5 stops counterclockwise rotation.
[0067] Technical effect: covering the whole cycle of normal monitoring, severe weather response and equipment self-protection, improving the self-adaptive ability and service life of the monitoring system under unattended conditions.
[0068] Compared with the prior art, the height of the camera 13 can be flexibly adjusted according to the height of the crops and weather changes, the optimal observation angle is obtained, the lens surface of the camera 13 is protected, and the probability of scratching or adsorbing dust on the lens surface of the camera 13 is reduced.
[0069] Finally, it is to be explained that the above embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the purpose and scope of the present application, and all of them should be covered in the scope of the claims of the present application.
Claims
1. An auxiliary device for monitoring arable land, comprising a mounting plate (1) and a moving assembly (2) for moving the mounting plate (1), wherein a housing (3) and a cover (4) are fixedly connected to the upper and lower sides of the mounting plate (1), characterized in that: A screw (5) is rotatably connected to the mounting plate (1). A first through hole (6) adapted to the screw (5) is opened on the cover (4). The screw (5) passes through the first through hole (6). A drive assembly (7) for driving the screw (5) to rotate is fixedly connected inside the housing (3). A sleeve (8) is threadedly connected to the screw (5). Support rods (9) are provided on both sides of the sleeve (8). The two support rods (9) are fixedly connected to the cover (4). A limit rod (10) is fixedly connected to the sleeve (8). A second through hole (11) adapted to the support rod (9) is opened at both ends of the limit rod (10). The two support rods (9) pass through the corresponding second through hole (11). A support plate (12) is fixedly connected to the upper end of the sleeve (8). A camera (13) is fixedly connected to the support plate (12).
2. The auxiliary device for monitoring arable land according to claim 1, characterized in that: The drive assembly (7) includes a first motor (14) fixedly connected inside the housing (3), a first gear (15) fixedly connected to the lower end of the screw (5), a second gear (16) rotatably connected to the mounting plate (1), the second gear (16) meshing with the first gear (15), a first groove (17) is provided in the center of the second gear (16), a plurality of first protrusions (18) are fixedly connected to the inner sidewall of the first groove (17), a first centrifugal sleeve (19) is fixedly connected to the output shaft of the first motor (14), a first sliding groove (20) is provided on the first centrifugal sleeve (19), a first slider (21) is slidably connected in the first sliding groove (20), a first spring (22) is provided between the first slider (21) and the sidewall of the first sliding groove (20), the two ends of the first spring (22) are fixedly connected to the sidewall of the first slider (21) and the first sliding groove (20) respectively, and when the first spring (22) is in its natural state, the first slider (21) is entirely located in the first sliding groove (20).
3. The auxiliary device for monitoring arable land according to claim 2, characterized in that: A third gear (23) is provided between the cover (4) and the mounting plate (1). The third gear (23) is rotatably connected to the mounting plate (1) and has a third through hole (24) at its center that is compatible with the screw (5). The screw (5) passes through the third through hole (24). The third gear (23) is connected to the screw (5) in a transmission. The third gear (23) has multiple arc-shaped grooves (25). A convex shaft (26) is slidably connected in each of the multiple arc-shaped grooves (25). A slide rod (27) is fixedly connected to one end of each of the multiple convex shafts (26) located outside the arc-shaped grooves (25). A first limiting groove (28) that is compatible with the slide rod (27) is provided on the cover (4). The slide rod (27) is slidably connected in the first limiting groove (28). A support foot (29) is fixedly connected to one end of the slide rod (27) away from the convex shaft (26).
4. An auxiliary device for monitoring arable land according to claim 3, characterized in that: A first sprocket (30) is fixedly connected to the screw (5), and a drive shaft (31) is rotatably connected to the mounting plate (1). A second sprocket (32) and a fourth gear (33) meshing with a third gear (23) are fixedly connected to the drive shaft (31). The fourth gear (33) has fewer teeth than the third gear (23). A first chain (34) meshes and is tensioned on the first sprocket (30) and the second sprocket (32).
5. An auxiliary device for monitoring arable land according to claim 1, characterized in that: The upper ends of the two support rods (9) are provided with limit plates (35), and the upper ends of the two support rods (9) are fixedly connected to the side wall of the limit plate (35). The limit plate (35) is provided with a fourth through hole (36) that is compatible with the sleeve (8), and the sleeve (8) passes through the fourth through hole (36).
6. An auxiliary device for monitoring arable land according to claim 5, characterized in that: The limiting plate (35) is rotatably connected to a first rotating shaft (37). The upper end of the first rotating shaft (37) is fixedly connected to a wind cup (38), and the lower end is driven to connect to a fifth gear (39). A second rotating shaft (40) is provided on one side of the first rotating shaft (37). The two ends of the second rotating shaft (40) are rotatably connected to the side wall of the limiting plate (35) and the cover (4) respectively. The upper end of the second rotating shaft (40) is fixedly connected to a sixth gear (41) that meshes with the fifth gear (39), and the lower end is fixedly connected to a seventh gear (42). The screw (5) is driven to connect to an eighth gear (43) that meshes with the seventh gear (42).
7. An auxiliary device for monitoring arable land according to claim 6, characterized in that: The fifth gear (39) has a second groove (44) at its center. Multiple second protrusions (45) are fixedly connected to the inner sidewall of the second groove (44). The lower end of the first rotating shaft (37) is fixedly connected to a second centrifugal sleeve (46). A second sliding groove (47) is provided on the second centrifugal sleeve (46). A second slider (48) is slidably connected in the second sliding groove (47). A second spring (49) is provided between the second slider (48) and the sidewall of the second sliding groove (47). The two ends of the second spring (49) are fixedly connected to the sidewall of the second slider (48) and the second sliding groove (47), respectively. When the second spring (49) is in its natural state, the second slider (48) is completely located in the second sliding groove (47).
8. An auxiliary device for monitoring arable land according to claim 7, characterized in that: The cover (4) has a second limiting groove (50) for accommodating the eighth gear (43). A limiting ring (51) is slidably connected in the second limiting groove (50). The limiting ring (51) is sleeved on the screw (5) and abuts against the bottom wall of the eighth gear (43). A third spring (52) is provided between the limiting ring (51) and the side wall of the second limiting groove (50). The two ends of the third spring (52) are respectively connected to the limiting ring (51) and the second limiting groove (50). The side wall of the groove (50) is fixedly connected, and a conical clutch head (53) is fixedly connected to the screw (5). The eighth gear (43) is provided with a slot (54) that is compatible with the conical clutch head (53). A pressure ring (55) is fixedly connected to the lower end of the sleeve (8). The outer diameter of the conical clutch head (53) is smaller than the inner diameter of the pressure ring (55). When the third spring (52) is in its natural state, the conical clutch head (53) is engaged in the slot (54).
9. An auxiliary device for monitoring arable land according to claim 6, characterized in that: The limiting plate (35) has a fifth through hole (56) adapted to the camera (13). A protective cover (57) is fixedly connected in the fifth through hole (56). A third rotating shaft (58) is rotatably connected in the protective cover (57). A mounting shell (59) is fixedly connected to the upper end of the third rotating shaft (58), and a third sprocket (60) is fixedly connected to the lower end. A sponge strip (61) is fixedly connected in the mounting shell (59), and a dry cloth strip (62) is fixedly connected to the outer wall of the mounting shell (59). The sponge strip (61) and the dry cloth strip (62) can fit tightly with the lens of the camera (13). The protective cover (57) has a first drainage hole (63). A second drainage hole (64) is opened in the mounting shell (59). A fourth sprocket (65) is fixedly connected in the second rotating shaft (40). A second chain (66) meshes and tensions on the third sprocket (60) and the fourth sprocket (65).
10. An auxiliary method for monitoring arable land, comprising the auxiliary device for monitoring arable land as described in claim 8, characterized in that: S1: The mobile component (2) transports the mounting plate (1) to the farmland area to be monitored; S2: The drive assembly (7) drives the screw (5) to rotate clockwise, and during the clockwise rotation of the screw (5), it drives the sleeve (8) and the camera (13) to rise to the highest set height; S3: The camera (13) captures pictures and videos and wirelessly transmits them to the monitoring terminal; S4: When the ambient wind speed reaches the preset threshold, the wind cup (38) is driven by the wind to rotate the first rotating shaft (37) counterclockwise. When the rotation speed exceeds the preset threshold, the second slider (48) in the second centrifugal sleeve (46) overcomes the resistance of the second spring (49) and slides outward under the action of centrifugal force, and contacts and abuts the second protrusion (45) in the second groove (44), and drives the fifth gear (39) to rotate counterclockwise, further drives the sixth gear (41), the second rotating shaft (40) and the seventh gear (42) to rotate clockwise, further drives the eighth gear (43) and the screw (5) to rotate counterclockwise, and further drives the sleeve (8) and the camera (13) to continue to descend. S5: After the sleeve (8) descends to the lowest set height, the pressure ring (55) contacts and presses down the eighth gear (43), overcoming the elastic force of the third spring (52) to make the slot (54) disengage from the conical clutch head (53), the eighth gear (43) spins freely, and the screw (5) stops rotating counterclockwise.