A remote sensing mapping positioning device

Abstract

The application belongs to the technical field of surveying equipment, and particularly relates to a remote sensing surveying and mapping positioning device. The device comprises a positioning coordinate mechanism, which comprises two bottom plates, two rectangular warehouses arranged on the two supporting plates, a guide roller arranged on the top of each rectangular warehouse and rotating on the opposite side plate, a winding roller rotating in each rectangular warehouse, a plurality of target sheets wound on the winding roller in the rectangular warehouse on the left side, a long block fixed on each of the two opposite side plates and provided with a cylindrical slide, a rubber shaft fixed on the two sides of each target sheet, a first L-shaped plate sliding in each of the two opposite side plates, and a second L-shaped plate arranged between the first L-shaped plates on the same side. The positioning coordinate mechanism can solve the problems of ink fading, falling off, deformation and wrinkling of the target sheet, background contrast reduction and pixel-level accurate interpretation.

Description

Technical Field

[0001] This invention belongs to the field of surveying equipment technology, specifically a remote sensing mapping and positioning device. Background Technology

[0002] Currently, establishing ground control points by deploying target patches is the mainstream core technology solution for achieving high-precision absolute positioning and constraining the accuracy of remote sensing mapping results. This solution involves uniformly deploying target patches with high-contrast, centrally symmetrical geometric patterns throughout the survey area, forming positioning anchor points that can be accurately identified at the pixel level on remote sensing images. In the field, high-precision geodetic equipment such as total stations are used to accurately determine the three-dimensional absolute geographic coordinates of the geometric center of the target patches, obtaining benchmark control points with known precise coordinates. In the office, bundle adjustment and aerial triangulation are used to complete the accurate registration of the image pixel coordinate system and the geodetic coordinate system, simultaneously achieving image geometric distortion correction, splicing error constraint, and elevation accuracy control. Ultimately, this achieves centimeter-level or even sub-centimeter-level absolute positioning of the entire survey area's remote sensing results, making it an indispensable core link in ensuring the accuracy and compliance of large-scale topographic maps, digital orthophotos, and realistic 3D models.

[0003] During long-term field deployment, target sheets are subjected to continuous exposure to strong ultraviolet radiation, large temperature differences between day and night, rain immersion, and humid environments. These factors easily cause the substrate to warp, wrinkle, and stretch, resulting in the loss of the original precision of the target's central symmetrical geometric pattern. Simultaneously, the ink printed on the surface fades and peels off rapidly, significantly reducing the contrast between the target and the ground background. This makes pixel-level precision interpretation impossible in remote sensing imagery, drastically increasing the error of the puncture points in the data processing, and even completely eliminating the target's identifiability and rendering it useless as a positioning reference. Furthermore, the windblown dust, loose soil, fallen leaves, and construction dust commonly found in field operations easily form a covering layer on the target sheet surface, completely obscuring the core geometric pattern and rendering the target unidentifiable in remote sensing imagery. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a remote sensing mapping and positioning device. By setting a positioning coordinate mechanism, it can solve the problems of reduced background contrast and inability to achieve pixel-level accurate interpretation caused by ink fading, peeling, deformation, and wrinkling on the target sheet; the specific structure is as follows; A remote sensing mapping and positioning device includes a positioning coordinate mechanism; the positioning coordinate mechanism includes two base plates; The two support plates are provided with two rectangular compartments, the rectangular compartment on the left is fixed to the bottom plate, and the rectangular compartment on the right slides on the bottom plate; Both rectangular compartments are provided with side plates on both sides, and the side plates are fixed to the rectangular compartments respectively, with a gap between the side plates of the two rectangular compartments; Both rectangular bins are equipped with guide rollers at their top, and the guide rollers rotate on opposite side plates; inside the two rectangular bins, there are rotating rollers, and the two rollers are driven by a first motor, which is installed on the opposite side of the side plates. Multiple target pieces are wound on the roller inside the rectangular compartment on the left side, and the multiple target pieces are connected end to end to form a roll; The target sheet passes over the left guide roller, then over the right guide roller, and enters the right rectangular compartment to be fixed on the winding roller; Each pair of opposite side plates is fixed with a long block, and a cylindrical slide is opened in the long block; the two sides of the target piece that are connected to each other are fixed with rubber shafts, and the rubber shafts slide in the cylindrical slide. Each pair of opposing side plates has a first L-shaped plate sliding inside it, and the first L-shaped plate passes through the side plate and is slidably connected to the side plate; The first L-shaped plate is located on one side above the target sheet and is in contact with the surface of the target sheet; a second L-shaped plate is provided between the first L-shaped plates on the same side, and the second L-shaped plate slides inside the first L-shaped plate; A threaded rod is rotatably mounted on the opposite side of the side plate; a helical block is threaded onto the threaded rod, and the helical block is fixed to the first L-shaped plate.

[0005] As a preferred embodiment of the present invention, a first convex groove is provided above both of the base plates; Both rectangular compartments have a first convex block fixed to their bottoms, and the first convex block slides within a first convex groove; the first convex block at the bottom of the rectangular compartment on the left is locked in place by a locking bolt.

[0006] In a preferred embodiment of the present invention, the guide roller located on the right side passes through the side plate and extends to the other side of the side plate; Both side plates on the same side have rotating rollers, and a rotating belt rotates on both rollers together. The beginning and end of the rotating belt are fixed by Velcro in an alternating manner. The rotating rollers all extend to the opposite side of the side plate; the portion of the rotating roller located on the opposite side of the side plate is fixed with a ratchet; the rotating roller has a rotating shaft on its side, and the rotating shaft rotates on the side plate. A turntable is fixed to the outer ring of the rotating shaft, and pawls are evenly arranged and hinged on the turntable. The pawls mesh with the ratchet. Both the rotating shaft and the guide roller are equipped with pulleys, and the pulleys on the guide roller and the rotating shaft are connected by a belt. When the guide roller rotates clockwise, it will drive the turntable and pawls to rotate clockwise through the belt, and push the ratchet to rotate counterclockwise. A long rod is fixed between the two conveyor belts, and the long rod is threaded; two sliders slide on the long rod; locking nuts are provided on both sides of the two sliders, and the locking nuts are threadedly engaged with the long rod. Both sliders have push plates fixed to their bottoms, and the two push plates are staggered and fit together; the push plates are initially positioned above the left rectangular compartment.

[0007] In a preferred embodiment of the present invention, a mounting plate is provided above the ratchet, and the mounting plate is fixed to the side plate; A second motor is fixed on the mounting plate, and the output shaft of the second motor is connected to the rotating roller via a coupling.

[0008] In a preferred embodiment of the present invention, a vertical plate is provided between the two side plates located on the same side, and the vertical plate is fixed to the bottom plate; The side plate has a sliding cavity on the side facing the upright plate, and the upright plate slides in the sliding cavity; the upright plate is located below the second L-shaped plate.

[0009] In a preferred embodiment of the present invention, multiple support plate groups are provided between the two rectangular compartments; Each of the aforementioned support plate assemblies includes two support plates, which are staggered, fit together, and are respectively installed on the rectangular compartments on both sides; One of the support plates in each of the support plate assemblies is provided with a second convex groove, and a second convex block is fixed on the other support plate, and the second convex block slides in the second convex groove; The two support plate groups near the two side plates are not fixed to the rectangular compartment, while the support plates on the remaining support plate groups are fixed to the rectangular compartments on both sides respectively. Limiting grooves are provided on the two support plates of the two support plate assemblies near the two side plates; sliding shafts slide in the limiting grooves and are fixed on the rectangular compartment. The first L-shaped plate and the second L-shaped plate are respectively opposite to two support plate groups near the two side plates, and the target piece is located between the first L-shaped plate, the second L-shaped plate and the support plate group; A J-shaped plate is fixed on the second L-shaped plate, and the J-shaped plate extends through the upright plate to the side of the support plate near the side plate; a slider is fixed on the side of the J-shaped plate near the support plate; a groove is provided on the support plate near the slider, and the slider slides in the groove; the cross-section of the groove is C-shaped.

[0010] As a preferred embodiment of the present invention, inclined plates are fixed below both rectangular bins; The inclined plate has a slot, and an inclined block slides in the slot; a spring is provided above the inclined block, and the other side of the spring is connected to the slot. A rubber roller rotates at the bottom of the inclined block.

[0011] In a preferred embodiment of the present invention, an arc-shaped guide plate is provided above the inclined block, and an extension plate is provided at the top of the arc-shaped guide plate.

[0012] In a preferred embodiment of the present invention, an arc-shaped scraper is fixed above the extension plate, and the arc-shaped scraper is in contact with the target plate.

[0013] The beneficial effects of this invention are as follows: 1. The remote sensing mapping and positioning device of the present invention, through a fully automatic target replacement structure driven by a first motor, can quickly and automatically update the target within the work area when the target exhibits failures such as ink fading, local damage, or surface impurity coverage. This solves the problems of decreased background contrast and inability to achieve pixel-level accurate interpretation caused by ink fading and peeling of the target, and removes the occlusion effect of surface impurities on the core geometric pattern of the target. This ensures that the target maintains qualified image recognizability during long-term field operations, enabling the ground control points to continuously and stably serve as positioning anchor points in aerial triangulation adjustment calculations. It effectively avoids problems such as excessive adjustment residuals, non-convergence of adjustment, substandard accuracy of surveying results, and overall rework in the field due to target failure.

[0014] 2. The remote sensing mapping and positioning device of the present invention, through a slidingly adjustable rectangular compartment structure and a retractable first L-shaped plate and a second L-shaped plate structure, realizes the adjustment of the effective recognition size of the target sheet. Operators can flexibly adjust the exposed size of the target sheet according to the actual mapping needs of different flight altitudes, mapping scales, and ground resolutions, so that the number of imaging pixels of the target sheet is always within the optimal range required by the mapping specifications. This fundamentally avoids the image recognition failure caused by the target sheet being too small, or the center interpretation ambiguity and terrain projection difference magnification caused by the target sheet being too large, thus ensuring the pixel-level accurate interpretation capability of the ground control points.

[0015] 3. The remote sensing mapping positioning device of the present invention, through the synchronous linkage of the first L-shaped plate, the second L-shaped plate and the lower support plate group, always maintains the first L-shaped plate, the second L-shaped plate and the support plate in a vertically aligned positional relationship, forming a clamping structure for the edge of the target piece, further strengthening the fixing effect of the target piece, solving the problem of the target piece being blown by strong winds in the field, effectively avoiding the target piece from shaking, bulging, warping, displacement and other situations, ensuring the positional stability of the geometric center of the target piece, eliminating the problem of coordinate reference offset caused by the shaking and displacement of the target piece, and ensuring that the image control point can continuously provide a stable and reliable absolute positioning reference for remote sensing mapping. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the positioning coordinate mechanism of the present invention; Figure 2 This is a perspective view of the positioning coordinate mechanism of the present invention from another angle; Figure 3 This is the present invention. Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 This is a structural diagram of the side plate, the first L-shaped plate, the second L-shaped plate, and the target sheet in this invention; Figure 5 This is a structural diagram of the base plate, rectangular compartment, and support plate in this invention; Figure 6 This is a structural diagram of the side plate, the first L-shaped plate, the second L-shaped plate, and the support plate in this invention; Figure 7 This is a structural diagram of the long rod, slider, and push plate in this invention; Figure 8 This is a top view of the positioning coordinate mechanism of the present invention; Figure 9 This is the present invention. Figure 8 Stepped sectional view at point BB; Figure 10 This is the present invention. Figure 9 Enlarged view of a section at point C; Figure 11 This is the present invention. Figure 9 Stepped sectional view at point DD; Figure 12 This is the present invention. Figure 11 Enlarged view of a section at point E in the middle.

[0018] In the diagram: 1. Base plate; 11. First convex groove; 12. Rectangular bin; 13. First convex block; 14. Roller; 15. Target plate; 16. Rubber shaft; 2. Side plate; 21. Guide roller; 22. Long block; 23. Columnar slide; 24. First L-shaped plate; 25. Second L-shaped plate; 26. Threaded rod; 27. Spiral block; 28. Vertical plate; 3. Rotating roller; 31. Belt; 32. Ratchet; 33. Shaft; 34. Pawl; 35. Belt; 36. Long rod; 37. Slider; 38. Push plate; 39. Mounting plate; 4. Support plate; 41. Second convex block; 42. Sliding shaft; 43. J-shaped plate; 44. Sliding ball; 5. Inclined plate; 51. Inclined block; 52. Rubber roller; 53. Arc-shaped guide plate; 54. Arc-shaped scraper. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] like Figures 1 to 12 As shown, the remote sensing mapping and positioning device of the present invention includes a positioning coordinate mechanism; the positioning coordinate mechanism includes two base plates 1; Two rectangular compartments 12 are provided on the two support plates 4. The rectangular compartment 12 on the left is fixed on the base plate 1, and the rectangular compartment 12 on the right slides on the base plate 1. Both rectangular compartments 12 are provided with side plates 2 on both sides, and the side plates 2 are fixed on the rectangular compartments 12 respectively, and a gap is left between the side plates 2 of the two rectangular compartments 12. The top of each of the two rectangular bins 12 is provided with guide rollers 21, and the two sides of the guide rollers 21 rotate on opposite side plates 2; inside the two rectangular bins 12, there are rotating rollers 14, and the two rollers 14 are driven by a first motor, and the first motor is installed on the opposite side of the side plates 2. Multiple target pieces 15 are wound on the roller 14 inside the rectangular compartment 12 on the left side, and the multiple target pieces 15 are connected end to end to form a roll. The target piece 15 passes over the left guide roller 21, then passes over the right guide roller 21, and enters the right rectangular compartment 12 to be fixed on the winding roller 14; Each pair of opposite side plates 2 is fixed with a long block 22, and a cylindrical slide 23 is provided in the long block 22; rubber shafts 16 are fixed on both sides of the target piece 15 that are connected to each other, and the rubber shafts 16 slide in the cylindrical slide 23. Each pair of opposing side plates 2 has a first L-shaped plate 24 sliding inside it, and the first L-shaped plate 24 passes through the side plate 2 and is slidably connected to the side plate 2; The first L-shaped plate 24 is located on one side above the target plate 15 and is in contact with the surface of the target plate 15; a second L-shaped plate 25 is provided between the first L-shaped plates 24 on the same side, and the second L-shaped plate 25 slides within the first L-shaped plate 24; A threaded rod 26 is rotatably mounted on the opposite side of the side plate 2; a spiral block 27 is threaded onto the threaded rod 26 and the spiral block 27 is fixed on the first L-shaped plate 24. In this embodiment, a first convex groove 11 is provided on the top of each of the two base plates 1; Both rectangular compartments 12 have a first convex block 13 fixed at their bottom, and the first convex block 13 slides in the first convex groove 11; the first convex block 13 at the bottom of the rectangular compartment 12 on the left side is locked and fixed by a locking bolt.

[0021] When setting up the positioning coordinate mechanism, firstly, place two base plates 1 on the ground where the selected image control points are laid out in the survey area. Then, slide the first convex blocks 13 fixed at the bottom of the two rectangular chambers 12 into the first convex grooves 11 opened above the two base plates 1. Then, lock the first convex block 13 at the bottom of the left rectangular chamber 12 onto the base plate 1 with locking bolts to complete the positioning of the left reference end. Then, push the right rectangular chamber 12 so that it slides away from the left rectangular chamber 12 along the first convex groove 11 through the first convex block 13 at the bottom. During the movement of the right rectangular chamber 12, it will pull out the target piece 15, which is connected end to end and rolled up on the roller 14 in the left rectangular chamber 12. With the movement of the right rectangular chamber 12, the target piece 15 always remains in a flat traction state. During this process, the rubber shafts 16 fixed on both sides of the interconnected target piece 15 will slide synchronously along the cylindrical slides 23 opened in the long blocks 22 fixed on both sides of the side plates 2 to realize the full-range limit guidance of the target piece 15.

[0022] Specifically, the side plate 2, which is fixedly connected to the right rectangular compartment 12, will move synchronously, causing the first L-shaped plate 24, which slides on the side plate 2, to move synchronously away from the left first L-shaped plate 24. At this time, the second L-shaped plate 25, which slides between the two first L-shaped plates 24 on the same side, will slide synchronously out from the first L-shaped plate 24, always maintaining the state of overlapping between the two first L-shaped plates 24, adapting to the change in the stretching length of the target piece 15. The operator can determine the required size of the target piece 15 according to the flight altitude, ground resolution, and mapping scale requirements of this remote sensing mapping, and control the moving distance of the right rectangular compartment 12 accordingly. When the right rectangular compartment 12 moves to the target position, the first convex block 13 at the bottom of the right rectangular compartment 12 is locked and fixed to the base plate 1 by locking bolts, thus completing the locking of the stretching length of the target piece 15.

[0023] More specifically, after locking the stretching length of the target piece 15, the threaded rod 26 on the opposite side of the rotating side plate 2 is rotated. Through the threaded engagement between the threaded rod 26 and the spiral block 27, the spiral block 27 is driven to move axially along the threaded rod 26, thereby pushing the first L-shaped plate 24, which is fixedly connected to the spiral block 27, to slide towards the center of the target piece 15. Since a second L-shaped plate 25 slides between the two first L-shaped plates 24 on the same side, the movement of a single first L-shaped plate 24 will simultaneously drive the other set of first L-shaped plates 24 and second L-shaped plates 25 to move together. With step displacement, the operator can adjust the feed distance of the first L-shaped plate 24 and the second L-shaped plate 25 according to the target width of the target piece 15, and pull out the target piece 15 in conjunction with the locked length, so that the exposed target piece 15 forms a complete rectangular effective identification area that meets the size requirements, and completes the precise adjustment of the size of the target piece 15; during this process, the side of the first L-shaped plate 24 and the second L-shaped plate 25 located above the target piece 15 is always in contact with the surface of the target piece 15, which can form a complete pressing and fixing of the edge of the exposed target piece 15.

[0024] Furthermore, the device has a built-in control system and storage battery, and can also be equipped with solar panels to achieve long-term power supply in the field. When the target sheet 15 is used in the field and the surface ink fades, is covered by impurities such as windblown sand, loose soil, and fallen leaves, or is partially damaged, resulting in wrinkles, warping, or deformation at the damaged area, the control system can simultaneously start the first motors installed on the opposite sides of the two side plates 2. The two first motors drive the rollers 14 in the corresponding rectangular compartments 12 to rotate clockwise synchronously. At this time, the rollers 14 in the left rectangular compartment 12 rotate clockwise. The roller 14 continuously releases new target pieces 15, while the roller 14 in the rectangular compartment 12 on the right simultaneously winds up the used old target pieces 15, achieving fully automatic replacement of target pieces 15 within the effective working area between the two side plates 2. During the replacement of target pieces 15, impurities attached to the surface of the old target pieces 15 are synchronously carried away from the effective working area as the target pieces 15 are wound up. At the same time, the new target pieces 15, under the limiting of the rubber shafts 16 on both sides and the cylindrical slide 23, and the synchronous traction of the two rollers 14, always enter the working area in a flat and stretched state.

[0025] Furthermore, by using the adjustable rectangular compartment 12 structure and the retractable first L-shaped plate 24 and second L-shaped plate 25 structure, the effective recognition size of the target sheet 15 can be adjusted. Operators can flexibly adjust the exposed size of the target sheet 15 according to the actual mapping needs of different flight altitudes, mapping scales, and ground resolutions, so that the number of imaging pixels of the target sheet 15 is always within the optimal range required by the mapping specifications. This fundamentally avoids the image recognition failure caused by the target sheet 15 being too small, or the center interpretation ambiguity and terrain projection difference magnification caused by the target sheet 15 being too large, thus ensuring the pixel-level accurate interpretation capability of the control points.

[0026] Meanwhile, through the structural design of synchronous traction by double rollers 14 and full-process limiting by rubber shafts 16 on both sides and cylindrical slide rails 23, the target piece 15 is always in a flat and stretched state during use. This effectively avoids the problems of wrinkles, warping, and stretching deformation caused by rain soaking, temperature and humidity changes, and sun aging in complex outdoor environments. It also avoids the physical offset of the geometric center caused by the deformation of the target piece 15, thus eliminating the problem of systematic positioning error at the root. At the same time, by pressing the first L-shaped plate 24 and the second L-shaped plate 25 onto the surface of the target piece 15, the exposed edges of the target piece 15 can be pressed and fixed in a full circumference, effectively resisting the blowing effect of strong winds on the target piece 15 in the field and preventing the target piece 15 from shaking.

[0027] Meanwhile, the fully automatic target replacement structure driven by the first motor can quickly and automatically update the target 15 in the work area when it fails due to ink fading, local damage, or surface impurities. This solves the problems of reduced background contrast and inability to achieve pixel-level accurate interpretation caused by ink fading and peeling of the target 15, and removes the occlusion of the core geometric pattern of the target 15 by surface impurities. This ensures that the target 15 always has qualified image recognition during long-term field operations, and enables the control points to continuously and stably participate in aerial triangulation adjustment calculations as positioning anchor points. It effectively avoids problems such as excessive adjustment residuals, non-convergence of adjustment, substandard accuracy of surveying results, and overall rework of field work caused by the failure of the target 15.

[0028] As one embodiment of the present invention; the guide roller 21 located on the right side passes through the side plate 2 and extends to the other side of the side plate 2; Two side plates 2 located on the same side each have a rotating roller 3, and a rotating belt 31 rotates together on the two rotating rollers 3, and the beginning and end of the rotating belt 31 are fixed by Velcro in an alternating manner; The rotating rollers 3 all extend to the opposite side of the side plate 2; a ratchet 32 ​​is fixed to the part of the rotating roller 3 located on the opposite side of the side plate 2; a rotating shaft 33 is rotatable on the side of the rotating roller 3, and the rotating shaft 33 rotates on the side plate 2. A turntable is fixed to the outer ring of the rotating shaft 33, and pawls 34 are hinged on the turntable and are evenly arranged, and the pawls 34 mesh with the ratchet 32; both the rotating shaft 33 and the guide roller 21 are equipped with pulleys, and the pulleys on the guide roller 21 and the rotating shaft 33 are connected by a belt 35; when the guide roller 21 rotates clockwise, it will drive the turntable and pawls 34 to rotate clockwise through the belt 35, and push the ratchet 32 ​​to rotate counterclockwise; A long rod 36 is fixed between the two conveyor belts 31, and the long rod 36 is a threaded rod 26; two sliders 37 slide on the long rod 36; locking nuts are provided on both sides of the two sliders 37, and the locking nuts are threadedly engaged with the long rod 36. Both sliders 37 have push plates 38 fixed to their bottoms, and the two push plates 38 are staggered and fit together; the push plates 38 are initially located above the left rectangular compartment 12.

[0029] In this embodiment, a mounting plate 39 is provided above the ratchet 32, and the mounting plate 39 is fixed on the side plate 2; A second motor is fixed on the mounting plate 39, and the output shaft of the second motor is connected to the rotating roller 3 via a coupling.

[0030] Because the beginning and end of the conveyor belt 31 are fixed with Velcro in an alternating manner, during the initial adjustment of the position of the right rectangular compartment 12 and the adaptation of the stretching length of the target piece 15, the right rectangular compartment 12 will synchronously drive the side plate 2 fixed to it, as well as the rotating roller 3 and the rotating shaft 33 mounted on the side plate 2, to move synchronously, thus completing the adaptation adjustment of the spacing between the rotating rollers 3 on the two side plates 2. After the position of the right rectangular compartment 12 is locked by the locking bolt, the relative position of the two rotating rollers 3 is synchronously fixed. At this time, the Velcro at the beginning and end of the conveyor belt 31 can be separated. The conveyor belt 31 can be adjusted according to the actual spacing between the two rotating rollers 3. After the conveyor belt 31 is evenly wrapped around the two rotating rollers 3, the beginning and end of the conveyor belt 31 are then fixed with Velcro in an alternating manner, so that the conveyor belt 31 forms a closed-loop transmission structure that adapts to the current spacing between the rotating rollers 3, perfectly adapting to the adjustment and change of the stretching length of the target piece 15.

[0031] Specifically, during the process of the two first motors driving the winding roller 14 to rotate clockwise, winding up the old target piece 15 and releasing the new target piece 15, when the target piece 15 is pulled past the right guide roller 21, it will drive the right guide roller 21 to rotate clockwise synchronously through friction. Therefore, the clockwise rotating guide roller 21 will drive the rotating shaft 33 to rotate synchronously through the belt 35. The outer ring of the rotating shaft 33 is fixed with a turntable, and the turntable is hinged with evenly arranged pawls 34 that rotate synchronously clockwise. The pawls 34 will get into the tooth groove of the ratchet 32 ​​and push the ratchet 32 ​​and the rotating roller 3 to rotate counterclockwise synchronously, thereby driving the closed-loop belt 31 between the two rotating rollers 3 to rotate synchronously counterclockwise.

[0032] More specifically, during the rotation of the conveyor belt 31, the long rod 36 fixed between the two conveyor belts 31 will rotate with the conveyor belt 31, and the push plate 38 fixed on the long rod 36 by the slider 37 will move synchronously, and the push plate 38 will be in contact with the surface of the target piece 15. The push plate 38 will move synchronously from left to right along the surface of the target piece 15, pushing all the impurities such as wind sand, loose soil, and fallen leaves attached to the surface of the target piece 15 to the outside of the target piece 15, so as to avoid the impurities rolling when they are rolled with the target piece 15, resulting in some impurities remaining on the surface of the new target piece 15, thereby eliminating the problem of the new target piece 15 being contaminated by residual impurities after replacement.

[0033] Furthermore, since one end of the rotating roller 3 is connected to the output shaft of the second motor via a coupling, after the target piece 15 is replaced and impurities are cleaned, the control system starts the second motor, which drives the rotating roller 3 to rotate clockwise, thereby driving the conveyor belt 31 to rotate clockwise, resetting the long rod 36 and the push plate 38 from the right side to the initial position above the left rectangular compartment 12. When the rotating roller 3 rotates, the ratchet 32 ​​at the end of the rotating roller 3 rotates clockwise synchronously. When the ratchet 32 ​​rotates, it will push the pawl 34 hinged on the turntable to rotate. After the teeth of the ratchet 32 ​​pass through the pawl 34, the pawl 34 is reset. At the same time, when it is not necessary to replace the target piece 15, the rotating roller 3 is driven to rotate by the second motor, thereby driving the conveyor belt 31 and the push plate 38 to rotate, which can also clean the surface of the target piece 15, avoiding impurities on the target piece 15 that may affect the surveying process.

[0034] As an embodiment of the present invention, a vertical plate 28 is provided between the two side plates 2 located on the same side, and the vertical plate 28 is fixed on the base plate 1; The side plate 2 has a sliding cavity on the side facing the vertical plate 28, and the vertical plate 28 slides in the sliding cavity; the vertical plate 28 is located below the second L-shaped plate 25; In this embodiment, multiple support plate groups are provided between the two rectangular compartments 12; Each of the support plate groups includes two support plates 4, which are staggered, fit together, and are respectively installed on the rectangular compartments 12 on both sides. A second convex groove is provided on one of the support plates 4 of each support plate assembly, and a second convex block 41 is fixed on the other support plate 4, and the second convex block 41 slides in the second convex groove. The two support plate groups near the two sides of the side plate 2 are not fixed to the rectangular compartment 12, and the support plates 4 on the other support plate groups are fixed to the rectangular compartments 12 on both sides respectively. Limiting grooves are provided on the two support plates 4 of the two support plate groups near the two sides of the side plate 2; sliding shafts 42 slide in the limiting grooves and are fixed on the rectangular compartment 12. The first L-shaped plate 24 and the second L-shaped plate 25 are respectively opposite to the two support plate groups near the two sides of the side plate 2, and the target piece 15 is located between the first L-shaped plate 24, the second L-shaped plate 25 and the support plate group; A J-shaped plate 43 is fixed on the second L-shaped plate 25, and the J-shaped plate 43 extends through the vertical plate 28 to the side of the support plate 4 near the side plate 2; a slider 44 is fixed on the side of the J-shaped plate 43 near the support plate 4; a sliding groove is provided on the support plate 4 near the slider 44, and the slider 44 slides in the sliding groove; the cross-section of the sliding groove is C-shaped.

[0035] Since there is a vertical plate 28 between the two side plates 2, when the side plates 2 move with the rectangular compartment 12, they will slide smoothly along the vertical plate 28 fixed on the base plate 1. When the two rectangular compartments 12 move, the multiple sets of support plates set between the two rectangular compartments 12 will synchronously adapt to the change in the spacing of the rectangular compartments 12. The two staggered support plates 4 in each support plate set will slide relative to each other as the rectangular compartment 12 moves. The second convex block 41 fixed on one of the support plates 4 will slide smoothly along the second convex groove opened on the other support plate 4.

[0036] Specifically, the two sets of support plates near the side plates 2 each have a limiting groove on their two support plates 4. A sliding shaft 42 fixed to the rectangular compartment 12 is slidably installed in the limiting groove, so that the two sets of support plates 4 can be adjusted with the spacing of the rectangular compartment 12 and slide towards the side plate 2 through the limiting groove along the sliding shaft 42, while always maintaining the connection and limiting with the rectangular compartment 12 and not falling off. At the same time, the target piece 15 is laid flat on the upper surface of the two sets of support plates, with the first L-shaped plate 24 and the second L-shaped plate 25 arranged directly above it, so that the target piece 15 is in the clamping space between the first L-shaped plate 24, the second L-shaped plate 25 and the corresponding support plate set below.

[0037] More specifically, when the threaded rod 26 is rotated to adjust the position of the first L-shaped plate 24, the moving first L-shaped plate 24 will drive the second L-shaped plate 25, which is slidably engaged with it, to move synchronously along the width direction of the target piece 15. The J-shaped plate 43 fixed on the second L-shaped plate 25 will slide synchronously through the vertical plate 28. The sliding ball 44 fixed on the side of the J-shaped plate 43 near the support plate 4 will, through cooperation with the C-shaped cross-section sliding groove on the support plate 4, drive the support plate assembly near the side plate 2 to move synchronously along the width direction of the target piece 15. During this process, the limiting groove on the support plate 4 will slide smoothly along the sliding shaft 42 fixed on the rectangular compartment 12, ensuring the straightness and stability of the support plate 4 during its movement. Ultimately, the support plate assembly near the side plate 2 will always maintain a vertically aligned position with the first L-shaped plate 24 and the second L-shaped plate 25 above, and cooperate with the first L-shaped plate 24 and the second L-shaped plate 25 to form a stable vertical clamping of the target piece 15 in the middle.

[0038] Furthermore, through the synchronous linkage of the first L-shaped plate 24, the second L-shaped plate 25 and the lower support plate group, the first L-shaped plate 24, the second L-shaped plate 25 and the support plate 4 are always kept in a vertically aligned position, forming a clamping structure for the edge of the target piece 15. This further strengthens the fixing effect of the target piece 15, solves the problem of the target piece 15 being blown by strong winds in the field, effectively avoids the target piece 15 from shaking, bulging, warping, or shifting, ensures the positional stability of the geometric center of the target piece 15, eliminates the problem of coordinate reference offset caused by the shaking and shifting of the target piece 15, and ensures that the image control point can continuously provide a stable and reliable absolute positioning reference for remote sensing mapping.

[0039] As an embodiment of the present invention; inclined plates 5 are fixed below both rectangular bins 12; slots are provided in the inclined plates 5, and inclined blocks 51 slide in the slots; springs are provided above the inclined blocks 51, and the other side of the springs is connected to the slots; rubber rollers 52 rotate at the bottom of the inclined blocks 51; an arc-shaped guide plate 53 is provided above the inclined blocks 51, and an extension plate is provided at the top of the arc-shaped guide plate 53; an arc-shaped scraper 54 is fixed above the extension plate, and the arc-shaped scraper 54 is in contact with the target plate 15.

[0040] During the movement of the right rectangular compartment 12, the two rectangular compartments 12 simultaneously move the inclined plates 5 fixedly connected below them, the inclined blocks 51, and the rubber rollers 52 rotatably connected to the bottom of the inclined blocks 51 along the ground. The rubber rollers 52 at the bottom of the inclined blocks 51 are always in close contact with the ground, ensuring that the rubber rollers 52 and the ground are always in contact. After the rubber rollers 52 are in contact with the ground, the two sets of oppositely arranged inclined plates 5 and inclined blocks 51 will form a full coverage of the space below the target plate 15 between the two rectangular compartments 12. The circumferential enclosure prevents airflow from entering the area below the target piece 15 through the gap at the bottom of the rectangular chamber 12, thus avoiding the airflow from lifting the target piece 15 from the bottom and causing it to sway, bulge, or warp. This further strengthens the fixation of the target piece 15, ensuring the integrity of the central symmetrical geometric pattern and the positional stability of the geometric center. It also eliminates the problem of coordinate reference offset caused by the swaying and displacement of the target piece 15, providing a stable and reliable foundation for high-precision absolute positioning in remote sensing mapping.

[0041] Specifically, the inclined slopes of the inclined plate 5 and the inclined block 51 will form a primary guide for the airflow carrying sand, dust and other impurities that are blown in from the front. After the airflow comes into contact with the inclined slope, it will be guided upward along the slope to the position of the fixed arc-shaped guide plate 53 above the inclined block 51. The arc-shaped curved surface of the arc-shaped guide plate 53 will form a secondary reverse guide for the airflow, and will guide the airflow in the opposite direction of its original direction of blowing. This will not only prevent the airflow from directly impacting the target plate 15 area, but also carry the impurities carried by the airflow away from the surrounding area of ​​the equipment with the reverse airflow.

[0042] More specifically, an extension plate is fixedly installed on the top of the arc-shaped guide plate 53, and an arc-shaped scraper 54 is fixed above the extension plate. The arc-shaped cutting edge of the arc-shaped scraper 54 is always in close contact with the lower surface of the target piece 15 that is about to enter the right rectangular bin 12. When the two first motors drive the rollers 14 to rotate synchronously and pull the used old target piece 15 into the right rectangular bin 12, the arc-shaped scraper 54 will thoroughly scrape and clean the floating dust, mud, fine debris and other impurities attached to the lower surface of the target piece 15, so as to prevent impurities from entering the interior of the right rectangular bin 12 with the target piece 15.

[0043] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A remote sensing mapping and positioning device, comprising a positioning coordinate mechanism; characterized in that, The positioning coordinate mechanism includes two base plates (1); Two rectangular compartments (12) are provided on the two support plates (4). The rectangular compartment (12) on the left is fixed on the base plate (1), and the rectangular compartment (12) on the right slides on the base plate (1). Side plates (2) are fixed on both sides of the two rectangular compartments (12). The top of each of the two rectangular bins (12) is provided with guide rollers (21), and the guide rollers (21) rotate on opposite side plates (2) on both sides; inside the two rectangular bins (12) there are rotating rollers (14), and the two rollers (14) are driven by a first motor; Multiple target pieces (15) are wound on the roller (14) inside the rectangular compartment (12) on the left side, and the multiple target pieces (15) are connected end to end to form a roll; The target piece (15) passes over the left guide roller (21), then passes over the right guide roller (21), and enters the right rectangular compartment (12) to be fixed on the winding roller (14); Each pair of opposite side plates (2) is fixed with a long block (22), and a cylindrical slide (23) is provided in the long block (22); the target plates (15) connected to each other are fixed with rubber shafts (16) on both sides, and the rubber shafts (16) slide in the cylindrical slide (23); Each pair of opposite side plates (2) has a first L-shaped plate (24) sliding inside it; a second L-shaped plate (25) is provided between the first L-shaped plates (24) on the same side, and the second L-shaped plate (25) slides inside the first L-shaped plate (24); The side plate (2) has a threaded rod (26) rotating on the opposite side; a spiral block (27) is threaded on the threaded rod (26), and the spiral block (27) is fixed on the first L-shaped plate (24).

2. The remote sensing mapping and positioning device according to claim 1, characterized in that: A first convex groove (11) is provided above each of the two base plates (1); Both rectangular compartments (12) have a first convex block (13) fixed at their bottoms, and the first convex block (13) slides in the first convex groove (11); the first convex block (13) at the bottom of the rectangular compartment (12) on the left side is locked and fixed by a locking bolt.

3. The remote sensing mapping and positioning device according to claim 1, characterized in that: The guide roller (21) located on the right side passes through the side plate (2) and extends to the other side of the side plate (2); Two side plates (2) located on the same side each have a rotating roller (3), and the two rotating rollers (3) have a rotating belt (31) rotating together, and the beginning and end of the rotating belt (31) are fixed by Velcro in an alternating manner; The rotating rollers (3) all extend to the opposite side of the side plate (2); a ratchet (32) is fixed on the part of the rotating roller (3) located on the opposite side of the side plate (2); a rotating shaft (33) is rotatable on the side of the rotating roller (3), and the rotating shaft (33) rotates on the side plate (2); The outer ring of the rotating shaft (33) is fixed with a turntable, and the turntable is hinged with evenly arranged pawls (34), and the pawls (34) mesh with the ratchet (32); both the rotating shaft (33) and the guide roller (21) are equipped with pulleys, and the pulleys on the guide roller (21) and the rotating shaft (33) are connected by a belt (35); when the guide roller (21) rotates clockwise, it will drive the turntable and the pawls (34) to rotate clockwise through the belt (35), and push the ratchet (32) to rotate counterclockwise; A long rod (36) is fixed between the two conveyor belts (31), and the long rod (36) is a threaded rod (26); two sliders (37) slide on the long rod (36); locking nuts are provided on both sides of the two sliders (37), and the locking nuts are threadedly engaged with the long rod (36); Both sliders (37) have push plates (38) fixed at their bottoms, and the two push plates (38) are staggered and fit together; the push plates (38) are initially located above the left rectangular compartment (12).

4. The remote sensing mapping and positioning device according to claim 3, characterized in that: A mounting plate (39) is provided above the ratchet (32), and the mounting plate (39) is fixed on the side plate (2); The second motor is fixed on the mounting plate (39), and the output shaft of the second motor is connected to the rotating roller (3) through a coupling.

5. The remote sensing mapping and positioning device according to claim 1, characterized in that: A vertical plate (28) is provided between the two side plates (2) located on the same side, and the vertical plate (28) is fixed on the bottom plate (1); The side plate (2) has a sliding cavity on the side facing the vertical plate (28), and the vertical plate (28) slides in the sliding cavity; the vertical plate (28) is located below the second L-shaped plate (25).

6. The remote sensing mapping and positioning device according to claim 5, characterized in that: Multiple support plate assemblies are provided between the two rectangular compartments (12); Each of the support plate groups includes two support plates (4), and the two support plates (4) are staggered, fit together, and are respectively installed on the rectangular compartments (12) on both sides; One of the support plates (4) of each support plate group is provided with a second convex groove, and the other support plate (4) is fixed with a second convex block (41), and the second convex block (41) slides in the second convex groove; The two support plate groups near the two side plates (2) are not fixed to the rectangular compartment (12), and the support plates (4) on the other support plate groups are fixed to the rectangular compartments (12) on both sides respectively; Limiting grooves are provided on the two support plates (4) of the two support plate groups near the two side plates (2); sliding shafts (42) slide in the limiting grooves and the sliding shafts (42) are fixed on the rectangular compartment (12); The first L-shaped plate (24) and the second L-shaped plate (25) are respectively opposite to the two support plate groups near the two side plates (2), and the target piece (15) is located between the first L-shaped plate (24), the second L-shaped plate (25) and the support plate group; A J-shaped plate (43) is fixed on the second L-shaped plate (25), and the J-shaped plate (43) extends through the upright plate (28) to the side of the support plate (4) near the side plate (2); a slider (44) is fixed on the side of the J-shaped plate (43) near the support plate (4); a sliding groove is provided on the support plate (4) near the slider (44), and the slider (44) slides in the sliding groove; the cross-section of the sliding groove is C-shaped.

7. The remote sensing mapping and positioning device according to claim 6, characterized in that: Both rectangular compartments (12) are fixed with inclined plates (5) below them; The inclined plate (5) has a slot, and an inclined block (51) slides in the slot; a spring is provided above the inclined block (51), and the other side of the spring is connected to the slot. A rubber roller (52) rotates at the bottom of the inclined block (51).

8. The remote sensing mapping and positioning device according to claim 7, characterized in that: An arc-shaped guide plate (53) is provided above the inclined block (51), and an extension plate is provided on the top of the arc-shaped guide plate (53).

9. The remote sensing mapping and positioning device according to claim 8, characterized in that: An arc-shaped scraper (54) is fixed above the extension plate, and the arc-shaped scraper (54) is in contact with the target plate (15).

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