Intelligent surveying and mapping device and surveying and mapping method for territorial space planning

Abstract

The invention discloses an intelligent surveying and mapping device and method for territorial space planning, and relates to the technical field of surveying and mapping devices. The intelligent surveying and mapping device for territorial space planning comprises a shell, a supporting unit, a lead weight and a laser centering device fixed to the bottom of the shell, and a marking assembly for conducting ink jet marking according to a centering result and an expansion assembly for switching marking modes according to different terrains are arranged below the shell. The marking assembly comprises an ink storage box with the bottom fixed to the left supporting plate and used for storing ink; the spray head is fixed on the ink storage box and used for spraying ink to the ground under the spray head to form a cross-shaped mark, the spray head, the lead weight and the laser centering device are located on the same plumb line after rotation, reproducible high-precision positioning can be achieved, the spray head is suitable for dense point distribution scenes such as image control points and monitoring nets, operation time is saved, point marking efficiency and accuracy are improved, and work efficiency is improved. And the long-standing problems of positioning and marking disjunction are solved.

Description

Technical Field

[0001] This invention relates to the field of surveying and mapping equipment technology, specifically to an intelligent surveying and mapping device and method for land spatial planning. Background Technology

[0002] Currently, the establishment of temporary benchmarks mainly involves operators holding a GNSS-RTK centering rod, moving it to the vicinity of the target coordinates based on the position deviation information displayed on the handheld screen, and then lowering the centering rod. The tip of the rod is then painted or a physical stake is set. After the centering rod is removed, the marking action cannot ensure that it coincides with the original positioning point, with an offset of 2–5 cm or even greater. Especially at night, in rain, fog, or complex terrain conditions, the marking accuracy drops sharply. Although there are automated stakeout robots (such as the Leica iCON series) that can achieve laser indication or mechanical guidance, they are based on the premise of being set up on known control points, which cannot solve the core need of accurately establishing new benchmarks at any unknown location. For example, the terrain boundary marking device based on high-density RTK disclosed in CN115655245A is equipped with a solar charging component that is not easy to accumulate dust and a reinforcement component, but this has little impact on improving the marking accuracy and cannot solve the core requirement of accurately establishing a temporary benchmark at any unknown location. Similarly, the laser mapping instrument for municipal engineering disclosed in CN120667616A also has the problem that although an adjustable support is provided, it cannot solve the core requirement of accurately establishing a benchmark at any unknown location. Therefore, an intelligent surveying and mapping device and method for land spatial planning are proposed. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an intelligent surveying and mapping device and method for land spatial planning, solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an intelligent surveying and mapping device for land spatial planning, comprising a shell, a support unit providing support for the shell, a plumb bob, and a laser centering device fixed to the bottom of the shell. Below the shell are a marking component for inkjet marking based on the centering result and an extension component for switching marking methods according to different terrains. The marking component includes: The mounting plate is fixed to the bottom surface of the outer casing at the top. The mounting shaft is hinged at the top to the bottom of the fixing plate via a torsion spring; The top of the left support plate is fixedly connected to the bottom of the mounting shaft, and it rotates around the mounting shaft as the axis under the action of external force. The ink cartridge is fixed to the left support plate at the bottom and stores ink. The printhead, fixed to the ink cartridge, is used to spray ink onto the ground directly below, forming a cross-shaped mark. After rotation, it is aligned with the plumb bob and laser alignment device on the same vertical line.

[0005] Preferably, the marking assembly further includes: an electric push rod, one end of which is fixed to the side wall of the housing via a mounting plate; an upper sliding block, the top of which is fixed to the output end of the electric push rod and the bottom of which is provided with an inclined surface; and a lower sliding block, the bottom of which is fixed to the top of the left support plate and the top of which is provided with an inclined surface that is slidably adapted to the upper sliding block.

[0006] Preferably, the marking assembly further includes: a lower electromagnet, the bottom of which is mounted on the left support plate; and an upper electromagnet, one end of which is fixed to the side wall of the fixing plate, which magnetically attracts the lower electromagnet when energized, thereby fixing the position of the left support plate.

[0007] Preferably, the marking assembly further includes: a second electric push rod, one end of which is fixed to the side wall of the left support plate via a connecting plate; a sliding rod, one end of which is fixed to the output end of the second electric push rod and moves linearly under the drive of the second electric push rod; a piston plate, fixed to the other end of the sliding rod and slidably installed inside the ink storage cartridge; a partition plate, fixed inside the ink storage cartridge and equipped with a solenoid valve; and an air supply pipe, one end of which is connected to the ink storage cartridge and supplies air to the ink storage cartridge to allow ink to be ejected from the printhead.

[0008] Preferably, the extended component includes: a driven slider with a sloping surface at the top that is adapted to slide with the upper slider; a right support plate with its top fixed to the bottom of the driven slider and mounted on the housing via a mounting shaft and a fixing plate, capable of rotating around the mounting shaft under external force; and a fixed electromagnet with its bottom fixed to the top of the right support plate, which, when energized, magnetically engages with the upper electromagnet to fix the right support plate.

[0009] Preferably, the extension assembly further includes: an electric push rod three, one end of which is fixed to the top of the right support plate via an L-shaped plate; a positioning plate, the top of which is fixed to the output end of the electric push rod three, and a piling hole is provided on its surface. After rotation, the piling hole, the plumb bob, and the laser centering device are on the same vertical line; and a threaded sleeve, which is movably mounted on the positioning plate.

[0010] Preferably, the extension component further includes: a micro motor, fixed to the top of the positioning plate; a power gear, fixed to the output end of the micro motor via an output shaft; and a driven gear ring, fixedly sleeved on the threaded sleeve and meshing with the power gear, driving the threaded sleeve to rotate under the drive of the micro motor.

[0011] Preferably, the support unit includes: a connecting ring located outside the housing; a sliding sleeve mounted on the bottom of the connecting ring via a pin; a power push rod, one end of which is fixed inside the sliding sleeve; a sliding leg, one end of which slides through the sliding sleeve and is fixed to the other end of the power push rod; a fan fixed to the top of the housing via a chassis; a sliding box, one end of which slides through the housing via a T-shaped rod and is connected to the fan via an air supply pipe, a transfer box, and a solenoid valve; a sliding plate slidably mounted inside the sliding box; and a push rod, one end of which is fixed to the sliding plate and the other end slides out of the sliding box and is fixed to the connecting ring.

[0012] This invention also provides a surveying method applicable to an intelligent surveying device for land spatial planning, comprising the following steps: S1. Utilize the GNSS positioning module installed inside the casing to determine the real-time position of the casing, and change the real-time position of the casing with the support unit until it coincides with the preset target position; S2. The laser alignment device is controlled by the control system built into the shell, and works in conjunction with the plumb bob to perform alignment operations. S3. After centering is completed, the marking component is controlled by the control system inside the shell to print a crosshair mark on the ground. S4. When the ground conditions do not meet the requirements for inkjet marking, the control system controls the operation of the extension component to drive physical stakes into the ground for marking. S5. After completing the establishment of the benchmark point, proceed to the next location where a new benchmark point needs to be established to carry out the work.

[0013] Preferably, during the process of rotating the nozzle to be aligned with the plumb bob and the laser alignment device on the same vertical line, the laser alignment device remains activated to maintain alignment.

[0014] This invention provides an intelligent surveying and mapping device and method for land spatial planning. Compared with the prior art, it has the following advantages: (1) The intelligent surveying and mapping device and surveying method used in the land space planning can achieve reproducible high-precision positioning. Multiple points can be preset and the equipment can be deployed in sequence. It is suitable for densely distributed scenarios such as control points and monitoring networks, saving operation time, improving the efficiency and accuracy of marking, and solving the long-standing problem of the disconnect between positioning and marking.

[0015] (2) The intelligent surveying device and surveying method used in the land space planning can directly spray out the crosshair after the equipment completes automatic centering, leveling and locking position. This systematically eliminates the geometric deviation introduced by human operation. The spatial consistency between the marked point and the preset coordinate can be within ±2mm. The marking is only started when the three conditions of stable position, verticality meets the standard and sufficient dwell time are met, to prevent misoperation. In the subsequent measurement, the operator only needs to align the instrument or prism with the crosshair center to quickly reproduce the origin, greatly reducing the secondary centering error and solving the fundamental contradiction of easy positioning, accurate marking and difficult reproduction in the field of surveying.

[0016] (3) The intelligent surveying device and surveying method used in the land space planning are no longer limited to clean, hard, and dry ground. They can truly realize the ability to operate in the field, significantly improving the environmental adaptability, marking durability and engineering practicality of the equipment. The deviation between the center of the pile top and the preset coordinates is ≤ ±5 mm, which is far better than manual operation (often ±2–3 cm).

[0017] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is another perspective view of the overall structure of the present invention; Figure 3 The following are structural diagrams of the laser alignment device of the present invention; Figure 4 The relevant structural diagrams of the fan of this invention are shown below; Figure 5 The relevant structural diagrams of the lead weight of this invention are shown below; Figure 6 This is a schematic diagram showing the disassembled state of the sliding leg of the present invention; Figure 7 This is a side sectional view of the sliding box of the present invention; Figure 8 This is a structural diagram of the left support plate before it is flipped in this invention; Figure 9 This is a schematic diagram showing the state of the left support plate after it has been flipped over according to the present invention; Figure 10 This is a side sectional view of the ink cartridge of the present invention; Figure 11 This is a structural diagram of the right support plate of the present invention; Figure 12 This is another perspective view of the right support plate of the present invention; Figure 13 This is a schematic diagram of the right support plate after it has been flipped over according to the present invention; Figure 14 This is another perspective view of the right support plate after it has been flipped over according to the present invention.

[0019] In the diagram: 1. Outer shell; 11. Fixing rope; 12. Plumb bob; 13. Laser centering device; 2. Connecting ring; 21. Sliding sleeve; 22. Power push rod; 23. Sliding leg; 24. Fan; 25. Transfer box; 26. Gas pipe; 27. Sliding box; 28. Sliding plate; 29. ​​Push rod; 3. Electric push rod one; 31. Upper sliding block; 32. Lower sliding block; 33. Left support plate; 34. Mounting shaft; 35. Fixing plate; 36. 37. Lower electromagnet; 38. Upper electromagnet; 39. Ink cartridge; 30. Electric push rod II; 310. Sliding rod; 311. Piston plate; 312. Divider plate; 313. Printhead; 314. Air supply pipe; 41. Driven slider; 42. Right support plate; 43. Fixed electromagnet; 44. Electric push rod III; 45. Positioning plate; 46. Threaded sleeve; 47. Micro motor; 48. Power gear; 49. Driven gear ring; 5. Expansion column. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0022] Please see Figures 1 to 7 The present invention provides the following technical solutions: Example 1: An intelligent surveying and mapping device for land and space planning includes a housing 1, a support unit for supporting the housing 1, four fixing ropes 11 fixedly installed at the bottom of the housing 1, the other ends of the four fixing ropes 11 being fixedly installed at the top of the plumb bob 12, and the top of the laser centering device 13 being fixedly installed at the bottom of the housing 1. The support unit includes: a connecting ring 2, a sliding sleeve 21, a power push rod 22, a sliding leg 23, a fan 24, a transfer box 25, an air supply pipe 26, a sliding box 27, a sliding plate 28, and a push rod 29. The connecting ring 2 is located outside the outer shell 1. One end of the sliding sleeve 21 is installed at the bottom of the connecting ring 2 via a pin. One end of the power push rod 22 is fixedly installed inside the sliding sleeve 21. One end of the sliding leg 23 slides through the sliding sleeve 21 and is fixedly connected to the other end of the power push rod 22. The fan 24 is fixedly installed on the top of the outer shell 1 via a chassis. One end of the sliding box 27 is fixedly installed with a T-shaped rod. The T-shaped rod consists of two parts, one part being a shorter T-shape and the other part being a shorter straight rod. The two parts are hinged together by a hinge. One end of the T-shaped rod slides through the outer shell 1. The sliding box 27 is connected to the fan 24 via the air supply pipe 26, the transfer box 25, and the solenoid valve. The sliding plate 28 is slidably installed inside the sliding box 27. One end of the push rod 29 is fixedly installed on the sliding plate 28. The other end of the push rod 29 slides out of the sliding box 27 and is fixedly installed on the connecting ring 2.

[0023] In use, during the process of land and space planning and surveying, especially in scenarios with a large number of points, such as topographic surveying and the need to mark benchmark points in the early stages of construction, the outer shell 1 is placed near the preset target position. The sliding sleeve 21, the power push rod 22 and the sliding leg 23 cooperate with each other, and the connecting ring 2 provides support for the outer shell 1. The high-precision GNSS positioning module inside the outer shell 1 obtains the position of the outer shell 1 in the geodetic coordinate system in real time. The real-time position is compared with the preset target position to determine the next direction of movement of the outer shell 1. After the direction of movement is determined, the control system inside the outer shell 1 controls the fan 24 to start. The fan 24 delivers gas to the sliding box 27 that needs to be adjusted through the transfer box 25 and the gas supply pipe 26. By opening the corresponding solenoid valve and closing the solenoid valve at the sliding box 27 that does not need to be adjusted, the gas enters the sliding box 27 that needs to be adjusted through the transfer box 25 and the gas supply pipe 26. Finally, the gas is on the left or right side of the sliding plate 28. When gas enters one of the sliding boxes 27 and is located to the left of the inner sliding plate 28, the sliding box 27 directly opposite this sliding box 27 will also have the same volume of gas input, and these gases are also located to the left of the inner sliding plate 28. Through the sliding engagement between the outer shell 1 and the sliding box 27, all the sliding boxes 27 can make corresponding linear movements in a plane parallel to the top surface of the outer shell 1 under the action of external force. When gas is injected into the sliding boxes 27 on the left and right sides, the sliding boxes 27 on the front and rear sides slide with the outer shell 1. Correspondingly, when gas is injected into the sliding boxes 27 on the front and rear sides, the sliding boxes 27 on the left and right sides slide with the outer shell 1, so that the real-time position coincides with the preset target position. Simultaneously, the laser alignment device 13 is activated by the control system. A camera mounted on the bottom of the outer casing 1 takes a picture of the lead weight 12 and transmits it to the image recognition module in the control system. The module determines whether the laser point is at the center of the top surface of the lead weight 12 and whether the lead weight 12 is horizontal. If it is not horizontal, the control system activates the corresponding power push rod 22, which moves the sliding sleeve 21. Through the sliding engagement between the sliding sleeve 21 and the sliding leg 23, the sliding sleeve 21 can move linearly along the sliding leg 23, thereby changing the state of the lead weight 12 so that it is horizontal and the laser point is at the center of the top surface of the lead weight 12. At this time, a physical mark can be made on the ground directly below the lead weight 12 for later use.

[0024] In another embodiment, distinct from the aforementioned embodiments, this device is used in conjunction with a total station. The extension column 5 is configured with an external thread, and an internal thread mounting base is provided at the bottom of the prism. Alternatively, using other existing quick-change technologies, the prism is fixedly mounted on the top of the housing 1 via the extension column 5. After the operator inputs the target point coordinates, the total station aims at the prism on the housing 1 and measures its current position coordinates. The total station sends the position deviation to the control system of this device via a wireless data link, or displays it directly on the operator's handheld device. The operator moves this device according to the instructions until the coordinates measured by the total station match the target coordinates. At this point, the control system activates the laser centering device 13 and projects the laser point directly below, followed by marking.

[0025] Please see Figures 8 to 10 The present invention provides the following technical solutions: Example 2, the technical solution of which differs from Example 1 includes: a marking component for inkjet marking based on the centering result is provided at the bottom 1 of the outer casing. The marking component includes: electric push rod 3, upper sliding block 31, lower sliding block 32, left support plate 33, mounting shaft 34, fixing plate 35, lower electromagnet 36, upper electromagnet 37, ink cartridge 38, electric push rod 39, sliding rod 310, piston plate 311, partition plate 312, printhead 313, and air supply pipe 314; One end of the electric push rod 3 is fixedly mounted on the mounting plate, and one end of the mounting plate is fixedly mounted on the side wall of the housing 1. The top of the upper sliding block 31 is fixedly mounted on the output end of the electric push rod 3. The bottom of the upper sliding block 31 is provided with an inclined surface. The bottom of the lower sliding block 32 is fixedly mounted on the top of the left support plate 33. The top of the lower sliding block 32 is provided with an inclined surface that slides and adapts to the upper sliding block 31. The top of the left support plate 33 is fixedly connected to the bottom of the mounting shaft 34. The left support plate 33 can be tilted by the mounting shaft 34 under the action of external force. 4 is for axial rotation; the top of the mounting shaft 34 is movably hinged to the bottom of the fixing plate 35 by a torsion spring. The top of the fixing plate 35 is fixed to the bottom of the outer casing 1. The bottom of the lower electromagnet 36 is fixedly mounted on the left support plate 33, and there are two lower electromagnets 36 with an included angle of 90° between them. One end of the upper electromagnet 37 is fixedly mounted on the side wall of the fixing plate 35. When the upper electromagnet 37 is energized, it can magnetically attract both lower electromagnets 36, thereby fixing the position of the left support plate 33 and storing ink. The bottom of cartridge 38 is fixedly mounted on the left support plate 33. Cartridge 38 stores ink. One end of the electric push rod 39 is fixedly mounted on the connecting plate, and the other end of the connecting plate is fixedly mounted on the side wall of the left support plate 33. One end of the sliding rod 310 is fixedly mounted on the output end of the electric push rod 39. The sliding rod 310 can move linearly under the drive of the electric push rod 39. The side of the piston plate 311 is fixedly mounted on the other end of the sliding rod 310, and the piston plate 311 is slidably mounted inside the cartridge 38. The ink cartridge 38 is sealed to the ink cartridge 11. The partition plate 312 is fixedly installed inside the ink cartridge 38, and a solenoid valve is fixedly installed on the partition plate 312. The print head 313 is fixedly installed on the ink cartridge 38. The print head 313 is used to spray ink onto the ground directly below to form a cross-shaped mark. After rotation, the print head 313 is on the same vertical line as the plumb bob 12 and the laser centering device 13. One end of the air supply pipe 314 is connected to the ink cartridge 38. The air supply pipe 314 is used to supply air to the ink cartridge 38 so that the ink can be sprayed out from the print head 313.

[0026] In use, after the outer casing 1 moves to the preset target position and the centering step is completed, the electric push rod 3 is started by the control system. The electric push rod 3 drives the upper sliding block 31 to move. The upper sliding block 31 slides and abuts against the lower sliding block 32, so that the upper sliding block 31 pushes the lower sliding block 32 to move. The lower sliding block 32 is fixedly connected to the left support plate 33. The mounting shaft 34 provides support for the left support plate 33, the fixing plate 35 provides support for the mounting shaft 34, and the outer casing 1 provides support for the fixing plate 35, so that the lower sliding block 32 synchronously drives the left support plate 33 to rotate around the mounting shaft 34 as the axis. As the electric push rod 3 starts, the control system de-energizes the upper electromagnet 37, causing the upper electromagnet 37 to... Figure 8When the lower electromagnets 36 shown can no longer maintain a magnetic attraction, the lower sliding block 32 and the left support plate 33 rotate around the mounting shaft 34. After deflection of 30°, the upper electromagnet 37 resumes power supply. When the lower sliding block 32 and the left support plate 33 rotate 90°, the upper electromagnet 37 and the other lower electromagnet 36 are magnetically attracted to each other, and at the same time, the electric push rod 3 stops, causing the left support plate 33 to move from... Figure 8 Rotate to the position shown Figure 9 At the position shown, the left support plate 33 synchronously drives the nozzle 313 to move, in Figure 9 When positioned, the printhead 313, laser centering device 13, and plumb bob 12 are on the same vertical line. At this time, the control system activates the electric push rod 39 and one of the solenoid valves on the partition plate 312. The electric push rod 39 drives the sliding rod 310 to move, and the sliding rod 310 drives the piston plate 311 to move. The piston plate 311 pushes the ink inside the ink cartridge 38 through the opened solenoid valve into the inner cavity on the side where the printhead 313 is located. Then, the control system controls the air pump to supply air to the inner cavity through the air supply pipe 314, thereby spraying the ink through the printhead 313 onto the ground directly below, thus forming a crosshair mark. After the marking is completed, the electric push rod 3 is controlled by the control system to return to its original position. Figure 8 As shown in the initial position, after the upper sliding block 31 is no longer pressed, the lower sliding block 32, the left support plate 33, and the mounting shaft 34 are synchronously reset to the initial position under the action of the torsion spring. During the process, the upper electromagnet 37 is first de-energized and then energized again, so that the reset left support plate 33 can remain in the initial position and wait for the next use.

[0027] Please see Figures 11 to 14 The present invention provides the following technical solutions: Example 3, the technical solution of which differs from Example 2 is as follows: an extension component is provided at the bottom 1 of the outer shell to switch the marking mode according to different terrains. The extension component includes: a driven slider 4, a right support plate 41, a fixed electromagnet 42, an electric push rod 43, a positioning plate 44, a threaded sleeve 45, a micro motor 46, a power gear 47, and a driven gear ring 48. The number of electric push rod 3, upper sliding block 31, mounting shaft 34, fixing plate 35, and upper electromagnet 37 are two sets, and the two sets of electric push rod 3, upper sliding block 31, mounting shaft 34, fixing plate 35, and upper electromagnet 37 are located on both sides of the outer casing 1 respectively. The driven slider 4 has an inclined surface at its top that slides between it and one of the upper sliding blocks 31. The top of the right support plate 41 is fixedly connected to the bottom of the driven slider 4. The top of the right support plate 41 is fixedly mounted on one of the mounting shafts 34, and the mounting shaft 34 is hinged to the corresponding fixed plate 35 via a torsion spring. The fixed plate 35 is fixedly mounted on the outer casing 1. The right support plate 41 can rotate around the mounting shaft 34 under the action of external force. The bottom of the fixing electromagnet 42 is fixedly mounted on the top of the right support plate 41. When the fixing electromagnet 42 is energized, it magnetically engages with one of the upper electromagnets 37 to fix the right support plate 41. Electric push rod 3 43 is fixedly mounted on an L-shaped plate at one end, and the L-shaped plate at the other end is fixedly mounted on the top of the right support plate 41. The top of the positioning plate 44 is fixedly mounted on the output end of the electric push rod 3 43. The surface of the positioning plate 44 is provided with a piling hole. After rotation, the piling hole, the plumb bob 12, and the laser centering device 13 are on the same vertical line. The threaded sleeve 45 is movably mounted on the positioning plate 44 through a bearing. The threaded sleeve 45 is provided with a spiral blade on the outside to help drill holes in the ground. The micro motor 46 is fixedly mounted on the top of the positioning plate 44. The power gear 47 is fixedly mounted on the output end of the micro motor 46 through an output shaft. The driven gear ring 48 is fixedly sleeved on the threaded sleeve 45, and the driven gear ring 48 is meshed with the power gear 47. The driven gear ring 48 drives the threaded sleeve 45 to rotate under the drive of the micro motor 46.

[0028] When in use, if it is not convenient to use inkjet marking on the ground surface during field surveying, after centering is completed, the electric push rod 3 located at the right support plate 41 is controlled by the control system. The electric push rod 3 is activated to drive the upper sliding block 31 to move down. The upper sliding block 31 slides and abuts against the driven slider 4 below, so that the driven slider 4 drives the right support plate 41 to rotate 90° around the mounting shaft 34 on this side. Similarly, the upper electromagnet 37 and the fixed electromagnet 42 on this side are used to fix the rotated right support plate 41. Its working process is the same as that between the upper electromagnet 37 and the lower electromagnet 36, so that the piling hole opened on the surface of the right support plate 41 is on the same vertical line as the laser centering device 13 and the plumb bob 12. At this point, the control system starts the electric push rod 43, which moves the positioning plate 44, which in turn moves the threaded sleeve 45, bringing its bottom into contact with the ground. The electric push rod 43 pauses for 3-5 seconds. During this pause, the control system starts the micro motor 46, which rotates the output shaft, which in turn rotates the power gear 47, which in turn rotates the driven gear ring 48, which in turn rotates the threaded sleeve 45. Simultaneously, the electric push rod 43 resumes operation and continues to move the threaded sleeve 45 downwards via the positioning plate 44, thus creating a shallow positioning hole in the ground. A positioning stake is then inserted through the piling hole on the surface of the positioning plate, and a heavy rod is inserted into the threaded sleeve 45 through the piling hole and used to strike the positioning stake downwards, thus completing the physical stake marking.

[0029] This invention also provides a surveying method for an intelligent surveying device used in land spatial planning, comprising the following steps: S1. Using the GNSS positioning module installed inside the outer casing 1, determine the real-time position of the outer casing 1, and change the real-time position of the outer casing 1 with the support unit until it coincides with the preset target position; S2. The laser alignment device 13 is controlled by the control system installed inside the outer shell 1, and works in conjunction with the plumb bob 12 to perform alignment operations. S3. After centering is completed, the marking component is controlled by the control system inside the outer shell 1 to print a crosshair mark on the ground. S4. When the ground conditions do not meet the requirements for inkjet marking, the control system controls the operation of the extension component to drive physical stakes into the ground for marking. S5. After completing the establishment of the benchmark point, proceed to the next location where a new benchmark point needs to be established to carry out the work.

[0030] During the process of the nozzle 313 rotating to be on the same vertical line as the plumb bob 12 and the laser centering device 13, the laser centering device 13 is always in the activated state to maintain centering, and is monitored in real time by the camera mounted on the bottom of the housing 1.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Parallelism: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism. It allows for situations where the parallelism is not absolute due to factors such as assembly tolerance, design tolerance, and structural flatness. It also allows for errors within a small angular range, such as within 10 degrees of assembly error. These can all be considered as parallel relationships.

[0034] Perpendicularity: The perpendicularity defined in this application is not limited to an absolute perpendicular intersection (with an included angle of 90 degrees). It is permissible for non-absolute perpendicular intersections caused by factors such as assembly tolerances, design tolerances, and structural flatness. It is permissible for errors within a small angular range, such as an assembly error range of 80 to 100 degrees, which can all be understood as a perpendicular relationship.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent surveying and mapping device for land spatial planning, comprising a housing (1), a support unit providing support for the housing (1), a plumb bob (12), and a laser centering device (13) fixed to the bottom of the housing (1), characterized in that, Below the outer casing (1) is a marking component for inkjet marking based on the centering result and an extension component for switching marking methods according to different terrains. The marking component includes: The top of the fixing plate (35) is fixed to the bottom surface of the outer casing (1); The mounting shaft (34) is hinged at the top to the bottom of the fixing plate (35) by a torsion spring; The top of the left support plate (33) is fixedly connected to the bottom of the mounting shaft (34), and rotates around the mounting shaft (34) as the axis under the action of external force; The ink cartridge (38) is fixed at the bottom to the left support plate (33) to store ink; The nozzle (313) is fixed on the ink cartridge (38) and is used to spray ink onto the ground directly below to form a cross mark. After rotation, it is aligned with the plumb bob (12) and the laser centering device (13) on the same vertical line.

2. The intelligent surveying and mapping device for land spatial planning according to claim 1, characterized in that, The tagging component also includes: One end of the electric push rod (3) is fixed to the side wall of the outer casing (1) by a mounting plate; The upper sliding block (31) is fixed at the top of the output end of the electric push rod (3) and has a slope at the bottom; The lower sliding block (32) is fixed at the bottom to the top of the left support plate (33), and the top is provided with an inclined surface that is adapted to slide between the upper sliding block (31).

3. The intelligent surveying and mapping device for land spatial planning according to claim 1, characterized in that, The tagging component also includes: The lower electromagnet (36) is mounted on the left support plate (33) at its bottom; The upper electromagnet (37) is fixed at one end to the side wall of the fixing plate (35). When energized, it is magnetically attracted to the lower electromagnet (36), thereby fixing the position of the left support plate (33).

4. The intelligent surveying and mapping device for land spatial planning according to claim 1, characterized in that, The tagging component also includes: Electric push rod 2 (39) is fixed at one end to the side wall of the left support plate (33) via a connecting plate; The sliding rod (310) is fixed at one end to the output end of the electric push rod (39) and moves linearly under the drive of the electric push rod (39). Piston plate (311) is fixed to the other end of sliding rod (310) and slidably installed in ink cartridge (38); A partition plate (312) is fixed inside the ink cartridge (38) and a solenoid valve is installed on it; An air supply pipe (314) is connected at one end to an ink cartridge (38) to supply air to the ink cartridge (38) so that ink can be sprayed out from the print head (313).

5. The intelligent surveying and mapping device for land spatial planning according to claim 2, characterized in that, The extended components include: The driven slider (4) has a slope at the top that is adapted to slide between it and the upper slider (31); The right support plate (41) is fixed at the top and the bottom of the driven slider (4), and is mounted on the outer shell (1) through the mounting shaft (34) and the fixing plate (35), and can rotate around the mounting shaft (34) as the axis under the action of external force; The electromagnet (42) is fixed at the bottom and at the top of the right support plate (41). After being energized, it magnetically engages with the upper electromagnet (37) to fix the right support plate (41).

6. The intelligent surveying and mapping device for land spatial planning according to claim 5, characterized in that, The extended components also include: The electric push rod three (43) is fixed at one end to the top of the right support plate (41) by an L-shaped plate; The positioning plate (44) is fixed at the top of the output end of the electric push rod three (43), and a piling hole is opened on the surface. After rotation, the piling hole, the plumb bob (12), and the laser centering device (13) are on the same vertical line. The threaded sleeve (45) is movably mounted on the positioning plate (44).

7. The intelligent surveying and mapping device for land spatial planning according to claim 6, characterized in that, The extended components also include: A micro motor (46) is fixed to the top of the positioning plate (44); The power gear (47) is fixed to the output end of the micro motor (46) via the output shaft; The driven gear ring (48) is fixedly sleeved on the threaded sleeve (45) and meshes with the power gear (47). Under the drive of the micro motor (46), it drives the threaded sleeve (45) to rotate.

8. The intelligent surveying and mapping device for land spatial planning according to claim 1, characterized in that, The support unit includes: Connecting ring (2), located outside the outer casing (1); The sliding sleeve (21) is mounted on the bottom of the connecting ring (2) by means of a pin; The power push rod (22) is fixed at one end inside the sliding sleeve (21); The sliding leg (23) has one end slidably inserted into the sliding sleeve (21) and fixed to the other end of the power push rod (22); The fan (24) is fixed to the top of the outer casing (1) via the chassis; The sliding box (27) is slidably installed inside the outer shell (1) through a T-shaped rod at one end, and is connected to the fan (24) through the gas supply pipe (26), the transfer box (25), and the solenoid valve; The sliding plate (28) is slidably installed inside the sliding box (27); The push rod (29) is fixed at one end to the sliding plate (28), and the other end slides out of the sliding box (27) and is fixed to the connecting ring (2).

9. A surveying method applicable to the intelligent surveying device for land spatial planning as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Using the GNSS positioning module installed inside the outer shell (1), determine the real-time position of the outer shell (1), and change the real-time position of the outer shell (1) with the support unit until it coincides with the preset target position; S2. The laser centering device (13) is controlled by the control system inside the outer shell (1) and works in conjunction with the plumb bob (12) to perform centering operations. S3. After centering is completed, the marking component is controlled by the control system inside the shell (1) to print a crosshair mark on the ground. S4. When the ground conditions do not meet the requirements for inkjet marking, the control system controls the operation of the extension component to drive physical stakes into the ground for marking. S5. After completing the establishment of the benchmark point, proceed to the next location where a new benchmark point needs to be established to carry out the work.

10. The surveying method of an intelligent surveying and mapping device for land spatial planning according to claim 9, characterized in that: During the process of rotating the nozzle (313) to be on the same vertical line as the plumb bob (12) and the laser centering device (13), the laser centering device (13) is always in the start state to maintain centering.

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