Remote sensing surveying and mapping positioning device

Abstract

The invention belongs to the technical field of remote sensing surveying and mapping equipment, and particularly relates to a remote sensing surveying and mapping positioning device which comprises a fixing rod, the top end of the fixing rod is provided with a tester, the main body of the fixing rod is of a hollow structure, and the bottom end of the fixing rod is fixedly communicated with a central pipe; the central tube is provided with a plurality of locking mechanisms in the axis direction, the central tube is sleeved with a plurality of image control targets in a sliding mode, the image control targets are fixed to the central tube through the locking mechanisms, and an unlocking mechanism is arranged on the fixing rod and used for unlocking the locking mechanisms. The method is simple, convenient and efficient to operate, can realize continuous and rapid layout of the image control target, remarkably improves the operation efficiency, and saves the time cost.

Description

Technical Field

[0001] The present invention relates to the technical field of remote sensing mapping equipment, and particularly relates to a remote sensing mapping positioning device. Background Art

[0002] Remote sensing technology is a new technology that uses telemetry instruments carried by artificial earth satellites or other space vehicles to remotely sense, detect, and identify the earth's surface through electronic and optical means to achieve resource management and monitoring.

[0003] Remote sensing mapping is an act of using remote sensing technology to perform data processing and analysis on a computer to achieve the purpose of mapping. Aerial survey by aircraft, as a new type of low-altitude remote sensing image acquisition technology, is a powerful supplement to satellite remote sensing and aerial photography. It can quickly obtain high-resolution orthophotos of small areas and areas difficult to photograph, thus playing an important role in national economic construction.

[0004] Currently, the layout of image control points is generally carried out by spraying paint or coating, and the entire process requires manual operation. This not only causes the labor intensity of operators to remain high, but also greatly consumes time costs and seriously affects work efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a remote sensing mapping positioning device to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the present invention provides a remote sensing mapping positioning device, including a fixed rod. A measuring instrument is installed at the top of the fixed rod. The main body of the fixed rod is a hollow structure. The bottom end of the fixed rod is fixedly communicated with a central tube. The bottom end of the central tube is fixedly connected with a positioning head. A plurality of locking mechanisms are arranged along the axial direction of the central tube. A plurality of image control targets are slidably sleeved on the central tube. The image control targets are fixed on the central tube through the locking mechanisms. An unlocking mechanism is arranged on the fixed rod, and the unlocking mechanism is used to unlock the locking mechanisms.

[0007] Preferably, the image control target includes a sliding cylinder slidably sleeved on the central tube. A plurality of support rods are circumferentially and equidistantly hinged on the outer wall of the bottom end of the sliding cylinder. A gravity sliding ring is slidably sleeved on the sliding cylinder. A limiting component is arranged on the gravity sliding ring, and the gravity sliding ring is fixed on the outer wall of the sliding cylinder through the limiting component. One ends of a plurality of pull rods are circumferentially and equidistantly hinged on the outer wall of the gravity sliding ring. The other ends of the pull rods are hinged to the lower parts of the support rods. The pull rods and the support rods are correspondingly arranged. After the plurality of pull rods are unfolded, they form a rectangular support frame body, and an image control target cloth is fixedly covered on the rectangular support frame body.

[0008] Preferably, the limiting component includes a plurality of through holes circumferentially formed on the side wall of the gravity sliding ring. A second spring is arranged in the through hole. A steel ball is fixedly connected to one end of the second spring close to the sliding cylinder. A plurality of hemispherical grooves are circumferentially formed on the outer wall of the sliding cylinder. The hemispherical grooves are adapted to the steel balls. The other end of the second spring abuts against an adjusting plug. The adjusting plug is threadedly connected to the outer wall of the gravity sliding ring.

[0009] Preferably, the locking mechanism includes a plurality of grooves circumferentially formed on the outer wall of the central tube. A locking tongue is slidably connected in the groove. A plurality of locking holes are circumferentially formed on the outer wall of the upper end of the sliding cylinder. The locking holes are adapted to the locking tongues. One end of a connecting rod is connected to the end of the locking tongue away from the sliding cylinder. The other end of the connecting rod penetrates through the inner wall of the groove and is connected to a limiting piece. A first spring is slidably sleeved on the connecting rod. Two ends of the first spring respectively abut against the locking tongue and the inner wall of the groove.

[0010] Preferably, the unlocking mechanism includes a lead screw rotatably connected in the cavity where the central tube and the fixed rod communicate. A block is threadedly connected to the lead screw. The block is of a cylindrical structure. A sliding rod is vertically connected in the cavity. The block is slidably limited on the sliding rod. A plurality of unlocking components are circumferentially arranged on the outer wall of the block. The unlocking components are arranged corresponding to the limiting pieces. A driving component for driving the lead screw to rotate is arranged on the fixed rod.

[0011] Preferably, the unlocking component includes unlocking bodies circumferentially arranged at equal intervals on the outer wall of the block. An avoidance groove for allowing the limiting piece to pass through is formed on one side of the unlocking body close to the limiting piece. Wedge-shaped blocks are fixedly connected to opposite sides of the avoidance groove. The limiting piece is of a frustum of a cone structure. The wedge-shaped blocks are adapted to the limiting piece.

[0012] Preferably, the driving component includes a rotating shaft rotatably connected to the fixed rod. A crank is fixedly arranged at one end of the rotating shaft. The other end of the rotating shaft penetrates through the outer wall of the fixed rod and is connected to a second bevel gear. A first bevel gear is connected to the top end of the lead screw. The first bevel gear meshes with the second bevel gear.

[0013] Preferably, a plurality of legs are circumferentially and equally spaced and hinged to the outer wall of the fixed rod.

[0014] Compared with the prior art, the present invention has the following advantages and technical effects:

[0015] A remote sensing mapping and positioning device provided by the present invention can quickly and fixedly install multiple image control targets on a central tube in sequence through a provided locking mechanism. At the same time, through the provided unlocking mechanism, unlocking can be carried out in sequence as required. After the image control target slides down along the central tube and lands, it automatically unfolds, which is convenient for layout. Moreover, continuous layout of image control targets can be achieved. The layout of the image control target at the current position is completed through a provided measuring instrument.

[0016] The operation process of the present invention is simple. Workers can start operating without complex training and cumbersome operation steps. In scenarios such as field operations, continuous layout of image control targets can be quickly and efficiently achieved. Compared with the traditional layout method of image control targets, the present invention greatly saves time costs, effectively improves the operation efficiency, provides strong support for the smooth progress of remote sensing mapping work, and reduces unnecessary losses of manpower and material resources while improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of a remote sensing mapping and positioning device proposed by the present invention;

[0019] Figure 2 is Figure 1 a partial enlarged view of part A in

[0020] Figure 3 is Figure 1 a partial enlarged view of part B in

[0021] Figure 4 It is a side view of the unlocking component in the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the image control target in the present invention;

[0023] Figure 6 is Figure 5 a partial enlarged view of part C in

[0024] Figure 7 is Figure 3 a partial enlarged view of part D in

[0025] Wherein: 1. positioning head; 2. central tube; 3. image control target cloth; 4. gravity slip ring; 5. fixed rod; 6. bracket one; 7. bevel gear one; 8. bevel gear two; 9. crank; 10. rotating shaft; 11. measuring instrument; 12. leg; 13. lead screw; 14. slide bar; 15. sliding cylinder; 16. lock hole; 17. lock tongue; 18. connecting rod; 19. spring one; 20. limiting piece; 21. avoidance groove; 22. wedge block; 23. unlocking body; 24. spring two; 25. adjusting plug; 26. steel ball; 27. hemispherical groove; 28. support rod; 29. pull rod; 30. block; 31. bracket two. Specific embodiments

[0026] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0027] The following explanations are made for the technical terms in the embodiments:

[0028] I. Basic principle of remote sensing mapping and positioning

[0029] Remote sensing mapping and positioning is mainly based on the electromagnetic wave theory. Different objects on the earth's surface have different electromagnetic wave characteristics, and they will reflect or radiate electromagnetic waves of specific wavelengths. The sensors on the remote sensing platform can capture these electromagnetic waves and infer the properties and distributions of ground objects by analyzing the spectral information of these waves, so as to achieve mapping and positioning.

[0030] II. Technical characteristics of remote sensing mapping and positioning

[0031] Remote sensing at a long distance: The sensing distance of remote sensing satellites is far, and it can sense any corner of the earth widely without restriction. Especially in areas with harsh natural conditions and difficult ground measurements, it can easily obtain ground information.

[0032] Diverse information: Remote sensing technology can not only obtain information in the visible light band, but also obtain information in invisible light bands such as ultraviolet, infrared, and microwave. In addition, according to the different penetrability of the ground objects by the wave bands, it can also obtain ground object information such as surface temperature, vegetation content, and atmospheric pollutant content.

[0033] Fast and efficient: The acquisition speed of remote sensing information is fast and the cycle is short. For example, it only takes 16 days to obtain the surface information of the entire earth by using Landsat 8.

[0034] Wide detection range: An aerial image taken at an altitude of 10,000 meters can cover an area of up to 900 square kilometers, and a satellite photo of the Earth's resources can cover an area of up to 34,000 square kilometers.

[0035] III. Application Areas of Remote Sensing Mapping and Positioning

[0036] Environmental protection: Remote sensing monitoring technology can achieve comprehensive and detailed monitoring of the ecological environment and play an important role in the monitoring of black and odorous water bodies and greenhouse gases.

[0037] Agricultural production: Remote sensing technology can be used for agricultural environment monitoring, current land use status monitoring, soil moisture analysis, and crop four-situation analysis, etc., providing data support for agricultural production.

[0038] Urban planning: Remote sensing technology can provide convenient information data for the preliminary work of urban planning and provide technical support for optimizing the urban land use layout.

[0039] Finance and insurance: Satellite remote sensing application technology has become a new source of data information and plays a role in pre-loan / pre-insurance due diligence, post-loan / post-insurance monitoring and other links. Especially in agricultural insurance, it can scientifically and reasonably allocate survey and loss assessment forces, improving the efficiency and accuracy of claims settlement.

[0040] Land surveying and mapping: By efficiently obtaining UAV aerial photography data, the detailed situation of the surveyed area can be quickly grasped, and then it can be widely applied to various aspects such as dynamic monitoring and investigation of land resources, updating of land use and coverage maps, monitoring of dynamic changes in land use, and analysis of characteristic information.

[0041] Route selection design: Remote sensing UAVs play an important role in the route selection design of power, highways, and railways. It can quickly obtain linear UAV aerial images and provide timely data support for route selection design.

[0042] Environmental monitoring: The high-resolution aerial images efficiently obtained by UAVs provide a timely and effective means for environmental pollution monitoring, especially for the monitoring of sewage pollution. At the same time, it is also widely applied to multiple fields such as marine monitoring, oil spill monitoring, water quality monitoring, wetland monitoring, solid pollutant monitoring, coastal zone monitoring, and vegetation ecological monitoring.

[0043] IV. Development Trends of Remote Sensing Mapping and Positioning

[0044] With the progress of communication and sensor technologies, remote sensing mapping and positioning technology is developing towards higher resolution, faster response, and wider coverage. Especially the rise of UAV remote sensing mapping technology, with its characteristics of high cost performance, portable transportation, no site restrictions, and flexibility, stands out among many remote sensing data acquisition methods and becomes one of the mainstream technologies of future aerial remote sensing.

[0045] In summary, remote sensing mapping and positioning technology plays an important role in multiple fields with its unique advantages, and shows a broader application prospect with the continuous progress of technology.

[0046] Image control point targets are ground control point markers used in photogrammetry and remote sensing applications. These targets are clearly visible in the images, and their main function is to determine specific positions on the ground, thus helping to accurately interpret and correct aerial or satellite images. In scenarios such as UAV aerial survey and ground mapping, image control point targets can provide accurate geographical location information to ensure the accuracy and reliability of measurement data.

[0047] Refer to Figures 1 to 7 As shown, the present invention provides a remote sensing mapping and positioning device, including a fixed rod 5. At the top of the fixed rod 5, a measuring instrument 11 is installed. The main body of the fixed rod 5 is a hollow structure. At the bottom end of the fixed rod 5, a central tube 2 is fixedly connected in communication. At the bottom end of the central tube 2, a positioning head 1 is fixedly connected. Along the axial direction of the central tube 2, a plurality of locking mechanisms are provided. A plurality of image control targets are slidably sleeved on the central tube 2, and the image control targets are fixed on the central tube 2 through the locking mechanisms. An unlocking mechanism is provided on the fixed rod 5, and the unlocking mechanism is used to unlock the locking mechanisms.

[0048] In order to prevent the deployed image control targets from being blown away and displaced by the wind, in this embodiment, ground nails are used to fix the four corners of the image control targets.

[0049] Through the provided locking mechanisms, a plurality of image control targets can be quickly installed and fixed on the central tube 2 in sequence. At the same time, through the provided unlocking mechanism, unlocking can be carried out in sequence as needed. After the image control targets slide down along the central tube 2 and land, they automatically unfold, which is convenient for deployment. Moreover, continuous deployment of image control targets can be achieved. Through the provided measuring instrument 11, the deployment of the image control targets at the current position is completed.

[0050] Furthermore, the image control target includes a sliding cylinder 15 slidably sleeved on the central tube 2. Along the circumferential direction at equal intervals on the outer wall of the bottom end of the sliding cylinder 15, a plurality of support rods 28 are hinged. A gravity sliding ring 4 is slidably sleeved on the sliding cylinder 15. A limiting component is provided on the gravity sliding ring 4, and the gravity sliding ring 4 is fixed on the outer wall of the sliding cylinder 15 through the limiting component. One ends of a plurality of pull rods 29 are hinged along the circumferential direction at equal intervals on the outer wall of the gravity sliding ring 4, and the other ends of the pull rods 29 are joined to the lower parts of the support rods 28. The pull rods 29 and the support rods 28 are correspondingly arranged. After the plurality of pull rods 29 are unfolded, they form a rectangular support frame body, and an image control target cloth 3 is fixedly covered on the rectangular support frame body.

[0051] When arranging the image control target, the unlocking mechanism is controlled to unlock the locking mechanism. As a result, the sliding cylinder 15 loses its restriction, and the sliding cylinder 15 and the gravity sliding ring 4 move downward along the central tube 2 together. When the sliding cylinder 15 touches the ground, it is forced to stop sliding. At this time, under the action of its own inertia, the gravity sliding ring 4 overcomes the limitation of the limiting component and continues to slide down along the outer wall of the sliding cylinder 15. The gravity sliding ring 4 drives the pull rod 29 to push the support rod 28 to rotate and unfold. Subsequently, the image control target cloth 3 is completely spread out on the ground, thus completing the arrangement of the image control target.

[0052] Furthermore, the limiting component includes a plurality of through holes circumferentially opened on the side wall of the gravity sliding ring 4. A second spring 24 is arranged in the through hole. One end of the second spring 24 close to the sliding cylinder 15 is fixedly connected with a steel ball 26. A plurality of hemispherical grooves 27 are circumferentially opened on the outer wall of the sliding cylinder 15. The hemispherical grooves 27 are adapted to the steel balls 26. The other end of the second spring 24 abuts against an adjusting plug 25, and the adjusting plug 25 is threadedly connected to the outer wall of the gravity sliding ring 4.

[0053] When the sliding cylinder 15 touches the ground and stops sliding, at this time, under the action of its own inertia, the steel ball 26 is squeezed and compresses the second spring 24, and then disengages from the hemispherical groove 27. By rotating the adjusting plug 25, the elastic force of the second spring 24 can be adjusted, so as to ensure that the image control target cloth 3 is always in the retracted state, that is, before the image control target does not slide on the central tube 2, the gravity sliding ring 4 is always limited at the top of the sliding cylinder 15.

[0054] Furthermore, the locking mechanism includes a plurality of grooves circumferentially opened on the outer wall of the central tube 2. A locking tongue 17 is slidably connected in the groove. A plurality of locking holes 16 are circumferentially opened on the outer wall of the upper end of the sliding cylinder 15. The locking holes 16 are adapted to the locking tongue 17. One end of a connecting rod 18 is connected to the end of the locking tongue 17 away from the sliding cylinder 15. The other end of the connecting rod 18 penetrates through the inner wall of the groove and is connected with a limiting piece 20. A first spring 19 is slidably sleeved on the connecting rod 18. The two ends of the first spring 19 respectively abut against the locking tongue 17 and the inner wall of the groove.

[0055] The locking tongue 17 extends into the locking hole 16 under the rebounding force of the first spring 19 to fix the sliding cylinder 15.

[0056] Furthermore, the unlocking mechanism includes a lead screw 13. The lead screw 13 is rotatably connected in the cavity where the central tube 2 and the fixed rod 5 communicate. A block 30 is threadedly connected to the lead screw 13. The block 30 is of a cylindrical structure. A sliding rod 14 is connected vertically in the cavity. The block 30 is slidably limited on the sliding rod 14. A plurality of unlocking components are arranged circumferentially on the outer wall of the block 30. The unlocking components are arranged corresponding to the limiting pieces 20. A driving component for driving the lead screw 13 to rotate is arranged on the fixed rod 5.

[0057] In this embodiment, a first bracket 6 is connected inside the fixed rod 5, and a second bracket 31 is connected to the inner bottom end of the central tube 2. The lead screw 13 is rotatably connected between the two brackets, and the slide rod 14 is also fixedly connected between the two brackets.

[0058] The drive assembly drives the lead screw 13 to rotate. Under the action of screw thread engagement and the limit of the slide rod 14, the block 30 moves along the slide rod 14, and the moving block 30 drives the unlocking assembly to contact the limit piece 20 and unlock it.

[0059] Furthermore, the unlocking assembly includes unlocking bodies 23 arranged at equal intervals in the circumferential direction of the outer wall of the block 30. A relief groove 21 for allowing the limit piece 20 to pass through is formed on one side of the unlocking body 23 close to the limit piece 20. Wedge-shaped blocks 22 are fixedly connected to opposite sides of the relief groove 21. The limit piece 20 has a frustum of a cone structure, and the wedge-shaped blocks 22 are adapted to the limit piece 20.

[0060] The moving block 30 drives the unlocking body 23 to approach the limit piece 20, and the two wedge-shaped blocks 22 are inserted between the limit piece 20 and the central tube 2. Under the action of the inclined surfaces of the wedge-shaped blocks 22, the limit piece 20 continuously pulls the connecting rod 18 and the lock tongue 17 against the elastic force of the first spring 19, so that the lock tongue 17 disengages from the lock hole 16 to achieve unlocking.

[0061] Furthermore, the drive assembly includes a rotating shaft 10 rotatably connected to the fixed rod 5. A crank 9 is fixedly arranged at one end of the rotating shaft 10. The other end of the rotating shaft 10 penetrates the outer wall of the fixed rod 5 and is connected with a second bevel gear 8. The top end of the lead screw 13 is connected with a first bevel gear 7, and the first bevel gear 7 meshes with the second bevel gear 8.

[0062] By shaking the crank 9, the rotating shaft 10 is driven to rotate. The rotating shaft 10 drives the second bevel gear 8 to rotate. Through the meshing transmission of the first bevel gear 7 and the second bevel gear 8, the lead screw 13 is further driven to rotate.

[0063] Furthermore, in order to better ensure that the central tube 2 is perpendicular to the ground, three legs 12 are hinged to the outer wall of the fixed rod 5 at equal intervals in the circumferential direction.

[0064] The remote sensing mapping and positioning device provided by the present invention has the following working principle: before the user conducts aerial survey, the user needs to arrange image control points for the divided area, first install several image control targets on the central tube 2 in sequence, move the measuring instrument 11 to the pre-set position, and spread the legs 12 on the central tube 2, slowly shake the crank 9 to drive the rotating shaft 10 to rotate, the rotating shaft 10 drives the bevel gear 2 8 to rotate, and through the meshing transmission of the bevel gear 1 7 and the bevel gear 2 8, the screw rod 13 is driven to rotate, and the block 30 moves along the slide rod 14 under the action of the threaded engagement and the limiting action of the slide rod 14, and the moving block 30 drives the unlocking body 23 to approach the limiting piece 20, and makes the two wedge-shaped The block 22 is inserted between the limit piece 20 and the center tube 2. Under the inclined surface of the wedge-shaped block 22, the limit piece 20 overcomes the elastic force of the spring 19 and continuously pulls the connecting rod 18 and the lock tongue 17, so that the lock tongue 17 escapes from the lock hole 16 to achieve unlocking. The slide tube 15 moves downward along the center tube 2 together with the gravity slip ring 4. When the slide tube 15 lands on the ground, it stops sliding. At this time, the gravity slip ring 4 drives the steel ball 26 to squeeze the compressed spring 24 under its own inertia, and then escapes from the hemispherical groove 27. The gravity slip ring 4 continues to slide down along the outer wall of the slide tube 15. The gravity slip ring 4 drives the pull rod 29 to push the support rod 28 to rotate, and then the image control target cloth 3 is completely spread on the ground, thereby completing the layout of the image control target.

[0065] The above are only preferred specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A remote sensing mapping and positioning device, characterized in that, It includes a fixed rod (5), at the top of the fixed rod (5), a measuring instrument (11) is installed. The main body of the fixed rod (5) is of a hollow structure. At the bottom end of the fixed rod (5), a central tube (2) is fixedly communicated. At the bottom end of the central tube (2), a positioning head (1) is fixedly connected. Along the axial direction of the central tube (2), a plurality of locking mechanisms are arranged. A plurality of image control targets are slidably sleeved on the central tube (2), and the image control targets are fixed on the central tube (2) through the locking mechanisms. An unlocking mechanism is arranged on the fixed rod (5), and the unlocking mechanism is used to unlock the locking mechanisms.

2. The remote sensing mapping and positioning device according to claim 1, wherein The image control target includes a sliding cylinder (15) slidably sleeved on the central tube (2). Along the circumferential direction at equal intervals on the outer wall of the bottom end of the sliding cylinder (15), a plurality of support rods (28) are hinged. A gravity sliding ring (4) is slidably sleeved on the sliding cylinder (15). A limiting component is arranged on the gravity sliding ring (4), and the gravity sliding ring (4) is fixed on the outer wall of the sliding cylinder (15) through the limiting component. One ends of a plurality of pull rods (29) are hinged along the circumferential direction at equal intervals on the outer wall of the gravity sliding ring (4), and the other ends of the pull rods (29) are joined with the lower parts of the support rods (28). The pull rods (29) and the support rods (28) are arranged correspondingly. After the plurality of pull rods (29) are unfolded, they form a rectangular support frame body, and an image control target cloth (3) is fixedly covered on the rectangular support frame body.

3. The remote sensing mapping and positioning device according to claim 2, characterized in that, The limiting component includes a plurality of through holes opened along the circumferential direction on the side wall of the gravity sliding ring (4). In the through holes, a second spring (24) is arranged. One end of the second spring (24) close to the sliding cylinder (15) is fixedly connected with a steel ball (26). Along the circumferential direction on the outer wall of the sliding cylinder (15), a plurality of hemispherical grooves (27) are opened. The hemispherical grooves (27) are adapted to the steel balls (26). The other end of the second spring (24) abuts against an adjusting plug (25), and the adjusting plug (25) is threadedly connected to the outer wall of the gravity sliding ring (4).

4. The remote sensing mapping and positioning device according to claim 3, characterized in that, The locking mechanism includes a plurality of grooves opened along the circumferential direction on the outer wall of the central tube (2). In the grooves, a locking tongue (17) is slidably connected. Along the circumferential direction on the outer wall of the upper end of the sliding cylinder (15), a plurality of locking holes (16) are opened. The locking holes (16) are adapted to the locking tongues (17). One end of a connecting rod (18) is connected to the end of the locking tongue (17) away from the sliding cylinder (15). The other end of the connecting rod (18) penetrates through the inner wall of the groove and is connected with a limiting piece (20). A first spring (19) is slidably sleeved on the connecting rod (18), and both ends of the first spring (19) respectively abut against the locking tongue (17) and the inner wall of the groove.

5. The remote sensing mapping and positioning device according to claim 4, wherein, The unlocking mechanism comprises a screw rod (13), the screw rod (13) is rotatably connected in a cavity communicating with the central tube (2) and the fixed rod (5), a block (30) is threadedly connected to the screw rod (13), the block (30) is a cylindrical structure, a sliding rod (14) is vertically connected to the cavity, the block (30) is slidably limited on the sliding rod (14), a plurality of unlocking components are circumferentially arranged on the outer wall of the block (30), the unlocking components are arranged corresponding to the limiting plate (20), and a driving component for driving the screw rod (13) to rotate is arranged on the fixed rod (5).

6. The remote sensing mapping and positioning device according to claim 5, wherein, The unlocking assembly comprises an unlocking body (23) which is arranged at equal intervals along the circumferential direction of the outer wall of the block body (30); a side of the unlocking body (23) close to the limiting plate (20) is provided with an avoidance groove (21) for allowing the limiting plate (20) to pass through; the opposite sides of the avoidance groove (21) are fixedly connected with a wedge block (22); the limiting plate (20) is a truncated cone structure, and the wedge block (22) is adapted to the limiting plate (20).

7. The remote sensing mapping and positioning device according to claim 5, characterized in that, The driving assembly comprises a rotating shaft (10) rotatably connected to the fixed rod (5), a crank (9) being fixedly provided at one end of the rotating shaft (10), the other end of the rotating shaft (10) passing through the outer wall of the fixed rod (5) and being connected to a bevel gear 2 (8), the top end of the screw rod (13) being connected to a bevel gear 1 (7), and the bevel gear 1 (7) being meshed with the bevel gear 2 (8).

8. The remote sensing mapping and positioning device according to claim 1, characterized in that A plurality of legs (12) are hingedly connected to the outer wall of the fixing rod (5) at equal intervals in the circumferential direction.

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