Remote sensing-based territorial information monitoring device and measurement method

Abstract

The invention discloses a remote sensing-based territorial information monitoring device and measuring method.The monitoring device comprises a base, two sets of swing mechanisms, a connecting rod mechanism and a measuring mechanism, a plurality of mutually-spaced sliding grooves are formed in the base and are radially distributed by taking the base as the center, and the connecting rod mechanism is connected with the connecting rod mechanism; one ends of the two swing mechanisms are connected to the base, the other ends of the two swing mechanisms can swing up and down relative to the base so as to aim at a target point of the boundary of an area to be measured, and the connecting rod mechanism is connected with the two swing mechanisms and horizontally moves along with up-down swing of the swing mechanisms. The measuring mechanism is connected with the connecting rod mechanism through a separable connecting piece, and the measuring mechanism can synchronously move along with the connecting rod mechanism so as to measure the horizontal movement displacement of the connecting rod mechanism. In the working process, a measurer does not need to carry an instrument to walk back and forth on the edge of a to-be-measured area, the pressure and burden of the measurer are relieved, operation is easy and convenient, and the measurement efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of land monitoring technology, and in particular to a land information monitoring device and a measuring method based on remote sensing. Background Art

[0002] Currently, there are two methods for surveying land area: direct measurement, in which surveyors use measuring tools such as tape measures and measuring ropes to directly measure the land; and another method is to use a measuring instrument to measure the land area. The staff carries the measuring instrument and walks around the land to be measured. The shape of the land to be measured is displayed on the screen by the measuring instrument, and then the area of ​​the shape is calculated.

[0003] However, the inventors found that the above land area surveying and mapping method has at least the following problems during the actual operation: direct manual measurement is only suitable for small-area land measurement and consumes a lot of manpower and material resources; and the method of measuring with a surveying instrument is less convenient and easy to use because it is necessary to carry the instrument while walking, especially for areas where walking is inconvenient and the environment is harsh, the difficulty of surveying and mapping will be increased. Summary of the invention

[0004] The main purpose of the present invention is to provide a land information monitoring device and measurement method based on remote sensing, aiming to solve the above-mentioned technical problems.

[0005] The technical problem solved by the present invention is achieved by adopting the following technical solutions:

[0006] A land information monitoring device based on remote sensing, characterized in that it includes:

[0007] The base comprises a base body and a column vertically arranged at the center of the base body, a plurality of mutually spaced slide grooves are formed on the base body, and the plurality of slide grooves are radially distributed with the column as the center;

[0008] The swing mechanism has two groups arranged at intervals along the axial direction of the column, the first ends of the two groups of swing mechanisms are connected to the column, and the second ends of the two groups of swing mechanisms can swing up and down relative to the column to aim at the target point at the boundary of the area to be measured;

[0009] A connecting rod mechanism, a first end of which is connected to the two sets of swing mechanisms, a second end of which extends in the direction of the slide slot, and the connecting rod mechanism can move horizontally as the swing mechanism swings up and down;

[0010] The measuring mechanism is arranged on the seat body and comprises a measuring block slidably arranged in a slide groove. The measuring block is connected to the connecting rod mechanism through a detachable connecting piece and can move synchronously with the connecting rod mechanism to measure the horizontal displacement of the connecting rod mechanism.

[0011] In some embodiments, each set of swing mechanisms includes:

[0012] The swing arm is rotatably connected to the column and can swing up and down relative to the column;

[0013] A first sighting mirror, fixed on the swing arm, is used to aim at a target point at the boundary of the area to be measured;

[0014] A first locking assembly is disposed between the swing arm and the column and is used to limit the relative movement between the swing arm and the column;

[0015] An angle ruler is arranged on the column and coaxially with the swing arm, and is used to measure the swing angle of the swing arm.

[0016] In some embodiments, the linkage mechanism comprises:

[0017] A support rod is rotatably connected to the column, and a guide groove parallel to the slide groove is provided on the support rod;

[0018] A telescopic rod, a first end of which is connected to the two sets of swing mechanisms, a second end of which is connected to the measuring block via a detachable connecting piece, and a sliding block slidably connected to the guide groove is also provided on the telescopic rod;

[0019] The second locking assembly is arranged between the telescopic rod and the swing mechanism, and is used to lock and fix the connecting rod mechanism after the two swing mechanisms are aimed at the target point.

[0020] In some embodiments, the measuring mechanism further comprises:

[0021] A plurality of rollers are arranged at the bottom of the measuring block away from the connecting rod mechanism;

[0022] An elastic belt is arranged on the bottom surface of the seat body away from the pillar, and the elastic belt is sleeved on the outside of the plurality of rollers;

[0023] The third locking assembly is arranged between the seat body and the measuring block to lock or unlock the measuring block.

[0024] In some embodiments, a connecting sleeve is provided on the swing arm, a through hole is provided in the connecting sleeve, a notch connected to the through hole is provided on the side wall, a connecting piece is provided on the column, and the connecting piece is sleeved on the outside of the connecting sleeve;

[0025] The first locking assembly comprises:

[0026] A first locking member is disposed in the notch and contacts the inner wall of the connecting member;

[0027] The first cam member includes a first cam shaft and a first knob. The first cam shaft is rotatably connected in the through hole and is used to drive the first locking member to move so that the first locking member is pressed against the inner wall of the connecting member to limit the swing of the swing arm. The first knob is arranged at one end of the first cam shaft extending to the outside of the swing arm.

[0028] In some embodiments, the second locking assembly includes:

[0029] A mounting seat, slidably connected along the axial direction of the swing mechanism;

[0030] A second locking member is disposed on opposite sides of the mounting seat and contacts the inner wall of the swing mechanism;

[0031] The second cam member includes a second cam shaft and a second knob. The second cam shaft is rotatably connected to the center of the mounting seat and is used to drive the second locking member to move so that the second locking member is pressed against the inner wall of the swing mechanism. The second knob is arranged at one end of the second cam shaft extending to the outside of the swing mechanism.

[0032] In some embodiments, the third locking assembly includes a third cam member, the third cam member includes a third camshaft and a third knob, the third camshaft is inserted in the slide groove and contacts the measuring block, and the third knob is arranged at one end of the third camshaft extending to the outside of the seat body.

[0033] In some embodiments, it also includes:

[0034] The supporting mechanism includes a plurality of legs, wherein the plurality of legs extend downward from the bottom surface of the seat body away from the pillar;

[0035] An adjustment mechanism, disposed on the seat body, for adjusting the height of the support mechanism;

[0036] The observation mechanism is arranged on the column and the connecting rod mechanism and is used for observing the target point at the boundary of the area to be measured.

[0037] In some embodiments, a cavity is provided on the seat body, and the cavity includes a mounting cavity provided one-to-one with the plurality of legs and a connecting cavity provided around the circumference of the seat body, one end of the leg is connected to the mounting cavity and can move up and down along the mounting cavity, and the connecting cavity connects the mounting cavities;

[0038] The regulatory agencies include:

[0039] The valve plate is sleeved on the outer periphery of the seat body and partially embedded in the cavity, and the inner wall of the valve plate is provided with a protrusion for isolating the installation cavity from the connecting cavity;

[0040] The handle is arranged on the outer side of the valve plate and is used to drive the valve plate to rotate so as to connect or separate the installation cavity and the connection cavity.

[0041] The present invention also provides a land information measurement method based on remote sensing, the measurement method comprising the following steps:

[0042] Step S10: placing the land information monitoring device in the middle of the area to be measured;

[0043] Step S20: respectively adjusting the two sets of swing mechanisms to swing up and down, so that the first sights on the two sets of swing mechanisms are aimed at the same target point at the boundary of the area to be measured;

[0044] Step S30: locking and fixing the swing mechanism by means of a first locking assembly;

[0045] Step S40: The two sets of swing mechanisms swing up and down while driving the connecting rod mechanism to move horizontally;

[0046] Step S50: the measuring block moves synchronously with the connecting rod mechanism;

[0047] Step S60: After the two sets of swing mechanisms aim at the target point, the connecting rod mechanism and the measuring block are locked and fixed;

[0048] Step S70: measuring and recording the distance moved by the measuring block and the angle value of the swing mechanism, and calculating the actual distance from the land information monitoring device to the target point;

[0049] Step S80: rotating the swing mechanism and the connecting rod mechanism around the axis of the column to make them face the next target point at the boundary of the area to be measured, and then repeating steps S20 to S70;

[0050] Step S90: Calculate the area of ​​the region to be measured according to the actual distance of each target point.

[0051] The present invention has the following beneficial effects:

[0052] The land information monitoring device based on remote sensing of the present invention only needs to be placed at the center of the area to be measured when in use. The target point at the boundary of the area to be measured can be located through two sets of swing mechanisms. The connecting rod mechanism will move horizontally with the up and down swing of the swing mechanism, and drive the measuring mechanism at its bottom to move synchronously. By measuring the distance moved by the measuring mechanism and the swing angle of the swing mechanism, the actual distance from the center of the area to be measured to the target point can be calculated. After measuring and calculating the actual distances of multiple target points at the boundary of the area to be measured, the area of ​​the area to be measured can be calculated. During the work process, there is no need for the surveyor to carry the instrument back and forth at the edge of the area to be measured, which reduces the pressure and burden of the surveyor. The operation is simple and convenient, and the measurement efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0054] Figure 1A schematic diagram of the three-dimensional structure of a land information monitoring device based on remote sensing according to an embodiment of the present invention;

[0055] Figure 2 It is a schematic diagram of the three-dimensional structure of the land information monitoring device based on remote sensing according to an embodiment of the present invention (with the upper cover hidden);

[0056] Figure 3 It is a schematic diagram of the three-dimensional structure of the land information monitoring device based on remote sensing according to an embodiment of the present invention from another angle;

[0057] Figure 4 A schematic diagram of the three-dimensional structure of a land information monitoring device based on remote sensing according to an embodiment of the present invention (with the base and supporting mechanism hidden);

[0058] Figure 5 for Figure 4 The main view;

[0059] Figure 6 A schematic diagram of the working state of a land information monitoring device based on remote sensing according to an embodiment of the present invention;

[0060] Figure 7 for Figure 4 A cross-sectional view of

[0061] Figure 8 for Figure 7 Middle A is a partial enlarged view;

[0062] Fig. 9 A cross-sectional view of a swing arm in a land information monitoring device based on remote sensing according to an embodiment of the present invention;

[0063] Fig.10 It is a schematic diagram of the three-dimensional structure of the first cam member in the land information monitoring device based on remote sensing according to an embodiment of the present invention;

[0064] Fig.11 for Figure 7 Middle B is a partial enlarged view;

[0065] Fig.12 It is a schematic diagram of the three-dimensional structure of the second locking component in the land information monitoring device based on remote sensing according to an embodiment of the present invention;

[0066] Fig.13 It is an exploded view of the second locking assembly in the land information monitoring device based on remote sensing according to an embodiment of the present invention;

[0067] Fig.14 It is a schematic diagram of the three-dimensional structure of the land information monitoring device based on remote sensing according to an embodiment of the present invention (hiding the swing mechanism, the connecting rod mechanism and the observation mechanism);

[0068] Fig.15 for Fig.14A cross-sectional view of

[0069] Fig.16 It is a schematic diagram of the three-dimensional structure of the third cam member in the land information monitoring device based on remote sensing according to an embodiment of the present invention;

[0070] Fig.17 A longitudinal cross-sectional view of a seat body in a land information monitoring device based on remote sensing according to an embodiment of the present invention;

[0071] Fig.18 A transverse cross-sectional view of a seat body in a land information monitoring device based on remote sensing according to an embodiment of the present invention;

[0072] Fig.19 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism in the land information monitoring device based on remote sensing according to the embodiment of the present invention;

[0073] Fig. 20 The present invention is a flowchart of a land information measurement method based on remote sensing.

[0074] The above reference numerals:

[0075] 10-base; 11-base body; 111-slideway; 1111-scale; 112-installation cavity; 113-connection cavity; 114-limiting part; 12-column; 121-connecting piece;

[0076] 20-swing mechanism; 21-swing arm; 211-connecting sleeve; 2111-through hole; 2112-notch; 22-first sighting mirror; 23-first locking assembly; 231-first locking member; 232-first cam member; 2321-first cam shaft; 2322-first knob; 24-angle ruler;

[0077] 30-linkage mechanism; 31-support rod; 311-guide groove; 32-telescopic rod; 321-sliding block; 33-second locking assembly; 331-mounting seat; 332-second locking member; 333-second cam member; 3331-second cam shaft; 3332-second knob;

[0078] 40-measuring mechanism; 41-measuring block; 42-roller; 43-elastic belt; 44-third locking assembly; 441-third cam member; 4411-third cam shaft; 4412-third knob;

[0079] 50-support mechanism; 51-support leg;

[0080] 60-adjusting mechanism; 61-valve plate; 611-protrusion; 62-handle;

[0081] 70- observation mechanism; 71- eyepiece; 72- reflector; 73- second sighting mirror. DETAILED DESCRIPTION

[0082] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0083] It should be noted that similar reference numerals denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition and explanation in the subsequent drawings.

[0084] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0085] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0086] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] See also Figures 1 to 19 As shown, the land information monitoring device based on remote sensing includes a base 10, a swing mechanism 20, a connecting rod mechanism 30 and a measuring mechanism 40.

[0088] The base 10 plays a supporting role and is used to support the swing mechanism 20, the connecting rod mechanism 30 and the measuring mechanism 40. The base 10 includes a base body 11 and a column 12 vertically arranged at the center of the base body 11. The specific shape of the base body 11 is not limited here, for example, it can be round, square, etc. The embodiment of the present application is described as a circular base body 11. A plurality of mutually spaced slide grooves 111 are formed on the base body 11, and the plurality of slide grooves 111 are radially distributed with the column 12 as the center. The column 12 can be fixedly connected to the base body 11, or can be rotatably connected to the base body 11, thereby driving the swing mechanism 20 and the connecting rod mechanism 30 to rotate relative to the base body 11.

[0089] It should be noted that “plurality” refers to a number of 2 or more than 2, such as 2, 3, 6, etc. The embodiment of the present application is described by taking the number of slide grooves 111 as 6 as an example, and a fixed angle is formed between two adjacent slide grooves 111 .

[0090] The swing mechanism 20 is mainly used to aim at the target point at the boundary of the area to be measured. Two groups of swing mechanisms 20 are arranged at intervals along the axial direction of the column 12. The two groups of swing mechanisms 20 have the same structure. The first end of each group of swing mechanisms 20 is connected to the column 12, and the second end can swing up and down relative to the column 12 to aim at the target point at the boundary of the area to be measured. After the two groups of swing mechanisms 20 swing to the target position, their second ends can intersect at one point, so that a triangular structure is formed between the column 12 and the two groups of swing mechanisms 20.

[0091] The connecting rod mechanism 30 is mainly used to connect the swing mechanism 20 and the measuring mechanism 40. The first end of the connecting rod mechanism 30 is connected to the intersection of the two sets of swing mechanisms 20, and the second end of the connecting rod mechanism 30 extends toward the direction of the slide slot 111. The connecting rod mechanism 30 can move horizontally as the two sets of swing mechanisms 20 swing up and down.

[0092] The measuring mechanism 40 is mainly used to measure the displacement of the connecting rod mechanism 30. The measuring mechanism 40 is arranged on the seat body 11, and includes a measuring block 41 slidably arranged in the slide groove 111. A measuring block 41 is correspondingly installed in each slide groove 111. Each measuring block 41 can be connected to the connecting rod mechanism 30 through a detachable connecting piece, and can move synchronously with the connecting rod mechanism 30, so as to measure the displacement of the horizontal movement of the connecting rod mechanism 30.

[0093] Among them, the detachable connecting part may include a first magnet arranged at the bottom of the connecting rod mechanism 30 and a second magnet arranged at the top of the measuring block 41. When the connecting rod mechanism 30 rotates, the first magnet can be attracted to or separated from the second magnet, thereby connecting or separating the connecting rod mechanism 30 and the measuring block 41.

[0094] In this embodiment, when it is necessary to measure the area of ​​a certain area, the remote sensing-based land information monitoring device is first fixed at the center of the area to be measured. Then, the swing mechanism 20 located at the upper part of the column 12 is adjusted to swing up and down so that it aims at the target point at the boundary of the area to be measured, and the swing mechanism 20 is positioned and fixed. Then, the swing mechanism 20 located at the lower part of the column 12 is adjusted to swing up and down so that it aims at the same target point aimed at by the upper swing mechanism 20, and the swing mechanism 20 is positioned and fixed. When the two sets of swing mechanisms 20 swing up and down, the connecting rod mechanism 30 connected thereto will be driven to move forward and backward. When the connecting rod mechanism 30 moves, it will drive the measuring mechanism 40 to move synchronously. When the angle adjustment of the two sets of swing mechanisms 20 is completed, the connecting rod mechanism 30 and the measuring mechanism 40 can be locked and fixed, and then the swing angle of the swing mechanism 20 at this position, the distance moved by the measuring mechanism 40 and other parameters are recorded; then the swing mechanism 20 and the connecting rod mechanism 30 are rotated to face the next target point at the boundary of the area to be measured, and the swing mechanism 20 is adjusted in the same way, and the measuring mechanism 40 in this direction is locked and fixed, and then the swing angle of the swing mechanism 20 at this position, the distance moved by the measuring mechanism 40 and other parameters are recorded. After all the target points at the boundary of the area to be measured are measured, the target points can be enclosed into a polygon. The target points at the boundary of the area to be measured aimed by the two swing mechanisms 20 are located on the extension line of each measuring mechanism 40, so the polygon enclosed between the measuring mechanisms 40 is a reduced version of the area to be measured. Finally, the actual distance between the measurement position and each target point is calculated, and the actual area of ​​the area to be measured can be calculated based on the actual distance of each target point and the angle between two adjacent target points. Figure 5 and Figure 6 After the measurement of each target point is completed, a right triangle structure is formed between the swing mechanism 20 at point A, the target point C at the boundary of the measurement area aimed at by the two swing mechanisms 20, and the measurement position D, wherein the angle ∠A and the length of AD are both known (measured directly from the device). According to the principle of trigonometric function, the actual distance (i.e., the length of CD) between the measurement position (i.e., the position under the feet of the measurer) and the target point at the boundary of the area to be measured in this direction can be inferred, and the angle between two adjacent target points is known (equal to the angle between the corresponding measurement mechanisms 40). According to the actual distance of each target point and the angle between two adjacent target points, the actual area of ​​the area to be measured can be calculated.

[0095] When the present invention is used, it is only necessary to place the monitoring device at the center of the area to be measured. The target point at the boundary of the area to be measured can be located through two sets of swing mechanisms 20. The connecting rod mechanism 30 will move horizontally with the up and down swing of the swing mechanism 20, and drive the measuring mechanism 40 at its bottom to move synchronously. By measuring the distance moved by the measuring mechanism 40 and the swing angle of the swing mechanism 20, the actual distance from the center of the area to be measured to the target point can be calculated. After measuring and calculating the actual distances of multiple target points at the boundary of the area to be measured, the area of ​​the area to be measured can be calculated. During the work process, there is no need for the measurer to carry the instrument back and forth at the edge of the area to be measured, which reduces the pressure and burden of the measurer. The operation is simple and convenient, and the measurement efficiency is effectively improved.

[0096] In some embodiments of the present application, in order to prevent dust from entering the seat body 11 , the base 10 may further include an upper cover disposed on the top of the seat body 11 .

[0097] See also Figure 4 and Figure 5 In some embodiments of the present application, each set of swing mechanisms 20 includes a swing arm 21, a first sighting mirror 22, a first locking assembly 23 and an angle ruler 24. The swing arm 21 can be a long bar-shaped structure, and a guide groove is arranged inside the swing arm 21 along the length direction. The first end of the swing arm 21 is connected to the column 12, and can rotate relative to the column 12 and swing up and down. The first sighting mirror 22 can be a holographic sighting mirror, a laser sighting mirror, etc. The first sighting mirror 22 is installed at a fixed angle at the front end of the swing arm 21 near the column 12, and is used to aim at the target point at the boundary of the area to be measured. The first locking assembly 23 is arranged between the swing arm 21 and the column 12, and is used to position and fix the swing arm 21 after it swings to the target position. The angle ruler 24 is arranged on the column 12 and is coaxial with the swing arm 21, and is used to measure the swing angle of the swing arm 21. Specifically, when in use, the swing arm 21 is adjusted to swing up and down, and observed through the first sighting scope 22. When the first sighting scope 22 is aimed at the target point at the boundary of the area to be measured, the first locking assembly 23 is adjusted to lock and fix the swing arm 21. At this time, a certain angle is formed between the swing arm 21 and the column 12, and the swing angle of the swing arm 21 can be measured by the angle ruler 24.

[0098] Specifically, in some embodiments of the present application, see Figures 7 to 10As shown, the front end of the swing arm 21 connected to the column 12 is provided with a U-shaped installation groove with an opening facing upward, a connecting sleeve 211 is provided in the U-shaped installation groove, a through hole 2111 is provided in the connecting sleeve 211, and a notch 2112 communicating with the through hole 2111 is provided on the side wall of the connecting sleeve 211. The column 12 may include a rod body and a connecting member 121, and the connecting member 121 may include a sleeve sleeved on the rod body and a lug plate fixed on the side wall of the sleeve, and the lug plate is sleeved on the outer side of the connecting sleeve 211 to flexibly connect the swing arm 21 to the column 12.

[0099] The first locking assembly 23 may include a first locking member 231 and a first cam member 232. The first locking member 231 may be a locking block embedded in the notch 2112, which contacts the inner wall of the lug plate of the connecting member 121. The first cam member 232 may include a first cam shaft 2321 and a first knob 2322. The first cam shaft 2321 is rotatably connected to the through hole 2111, and the first knob 2322 is disposed at one end of the first cam shaft 2321 extending to the outside of the swing arm 21. When the swing arm 21 needs to be locked and fixed, the first knob 2322 is rotated, and the first knob 2322 drives the first cam shaft 2321 to rotate. When the first cam shaft 2321 rotates, its protruding portion pushes the first locking member 231 to move toward the connecting member 121 and presses against the inner wall of the connecting member 121, thereby limiting the relative swing between the swing arm 21 and the column 12.

[0100] See also Figure 4 and Figure 5 In some embodiments of the present application, the connecting rod mechanism 30 may include a support rod 31, a telescopic rod 32, and a second locking assembly 33. The support rod 31 is used to support the telescopic rod 32, which can be vertically connected to the column 12 and can rotate relative to the axis of the column 12. The support rod 31 is provided with a guide groove 311 parallel to the slide groove 111, and the guide groove 311 is used to guide the telescopic rod 32 to move horizontally. The first end of the telescopic rod 32 is connected to the two sets of swing mechanisms 20, and can move forward and backward and stretch up and down with the up and down swing of the swing mechanism 20. The second end of the telescopic rod 32 is connected to the measuring block 41 through a detachable connecting piece. When the swing mechanism 20 swings up and down, the telescopic rod 32 is driven to move horizontally. The movement of the telescopic rod 32 also drives the measuring mechanism 40 to move, thereby measuring the distance moved by the telescopic rod 32. Among them, the telescopic rod 32 is also provided with a slider 321 slidably connected to the guide groove 311. The slider 321 is connected to the guide groove 311, which can improve the stability of the telescopic rod 32 when it moves. The second locking assembly 33 is disposed between the telescopic rod 32 and the swing mechanism 20 , and is used to lock and fix the connecting rod mechanism 30 after the two swing mechanisms 20 aim at the target point.

[0101] Specifically, in some embodiments of the present application, see Figures 11 to 13As shown, the second locking assembly 33 may include a mounting seat 331, a second locking member 332, and a second cam member 333. The mounting seat 331 may be a mounting block adapted to the guide groove on the swing arm 21, which is embedded in the guide groove of the swing arm 21 and can slide along the guide groove. A mounting hole is provided at the front center of the mounting seat 331, and mounting grooves communicating with the mounting hole are provided on two pairs of sides of the mounting hole. The second locking member 332 is embedded in the mounting groove of the mounting seat 331, and its outer side wall contacts the inner wall of the guide groove of the swing mechanism 20. The second cam member 333 may include a second cam shaft 3331 and a second knob 3332, the second cam shaft 3331 is rotatably connected to the mounting hole at the center of the mounting seat 331, and the second knob 3332 is provided at one end of the second cam shaft 3331 extending to the outside of the swing mechanism 20. When the connecting rod mechanism 30 needs to be locked and fixed, the second knob 3332 is rotated, and the second knob 3332 drives the second cam shaft 3331 to rotate. When the second cam shaft 3331 rotates, the common raised portion will push the second locking members 332 on both sides to move away from the center of the mounting seat 331, and press against the inner wall of the swing mechanism 20, thereby limiting the relative movement between the swing mechanism 20 and the connecting rod mechanism 30.

[0102] In order to facilitate the simultaneous locking and fixing of the connecting rod mechanism 30 and the two groups of swing mechanisms 20, a U-shaped connecting portion with an opening upward can be provided at the upper end where the telescopic rod 32 is connected to the swing mechanism 20, and the U-shaped connecting portion is sleeved on the outer sides of the two swing mechanisms 20. Two groups of second locking components 33 are provided, and the two groups of second locking components 33 are respectively installed on the two side plates of the U-shaped connecting portion and are respectively connected to the two swing mechanisms 20. In this way, after the two swing mechanisms 20 swing to the target position, the connecting rod mechanism 30 and the two groups of swing mechanisms 20 can be locked and fixed at the same time by adjusting the two groups of second locking components 33 on the upper part of the telescopic rod 32.

[0103] See also Fig.14 and Fig.15 In some embodiments of the present application, the measuring mechanism 40 may further include a plurality of rollers 42 , an elastic band 43 and a third locking assembly 44 .

[0104] The roller 42 is arranged at the bottom of the measuring block 41 away from the connecting rod mechanism 30, and a roller 42 is installed at the bottom of each measuring block 41. The elastic belt 43 is arranged on the bottom surface of the seat body 11 away from the column 12, and the elastic belt 43 is sleeved on the outside of the plurality of rollers 42 to enclose the plurality of rollers 42, thereby forming a polygon. The third locking assembly 44 is arranged between the seat body 11 and the measuring block 41, and is used to lock or unlock the measuring block 41.

[0105] Specifically, when the swing mechanism 20 swings up and down to aim at the target point, it will drive the connecting rod mechanism 30 to move horizontally. When the connecting rod mechanism 30 moves, it will drive the measuring block 41 to move synchronously. The measuring block 41 drives the roller 42 at the bottom to move. When the roller 42 moves, it will pull the elastic belt 43 to retract. After the measuring block 41 moves to the target position, the measuring block 41 is locked in this position by the third locking component 44, and then the swing mechanism 20 and the connecting rod mechanism 30 are rotated to align them with the next target point on the boundary of the area to be measured, and the position of the measuring block 41 corresponding to the target point is adjusted and locked. After the position of the measuring block 41 corresponding to all target points on the boundary of the area to be measured is adjusted, a polygon enclosed by the elastic belt 43 is also formed on the bottom surface of the base 11, and the area enclosed by the polygon is a reduced version of the area to be measured.

[0106] Further, in some embodiments of the present application, see Fig.15 and Fig.16 As shown, the third locking assembly 44 may include a third cam member 441, the third cam member 441 includes a third cam shaft 4411 and a third knob 4412, the third cam shaft 4411 is inserted into the slide groove 111 and contacts the measuring block 41, and the third knob 4412 is arranged at one end of the third cam shaft 4411 extending to the outside of the seat body 11. When the measuring block 41 needs to be locked and fixed, the third knob 4412 is rotated, and the third knob 4412 drives the third cam shaft 4411 to rotate. When the third cam shaft 4411 rotates, its raised portion will press against the side of the measuring block 41, thereby limiting the sliding of the measuring block 41.

[0107] Furthermore, in some embodiments of the present application, in order to facilitate the measurement of the moving distance of the measuring block 41, a scale 1111 is also provided on the slide groove 111. After the measuring block 41 moves to the target position, the moving distance of the measuring block 41 can be quickly obtained through the scale 1111.

[0108] In some embodiments of the present application, the land information monitoring device may further include a support mechanism 50, an adjustment mechanism 60 and an observation mechanism 70. The support mechanism 50 may include a plurality of legs 51, which extend downward from the bottom surface of the seat body 11 away from the column 12 to support the base 10. The adjustment mechanism 60 is arranged on the seat body 11 to adjust the height of the support mechanism 50. The observation mechanism 70 is arranged on the column 12 and the connecting rod mechanism 30 to observe the target point of the boundary of the area to be measured.

[0109] Specifically, in some embodiments of the present application, Figures 17 to 19As shown, a cavity is provided on the seat body 11, and the cavity includes an installation cavity 112 arranged in a one-to-one correspondence with the multiple legs 51 and a connecting cavity 113 arranged around the circumference of the seat body 11. One end of the leg 51 is connected to the installation cavity 112 and can move up and down along the installation cavity 112. Each installation cavity 112 is provided with a notch portion connected to the connecting cavity 113, so that multiple installation cavities 112 can be connected through the connecting cavity 113.

[0110] The adjustment mechanism 60 may include a valve plate 61 and a handle 62. The valve plate 61 may be an annular structure, which is sleeved on the outer periphery of the seat body 11 and partially embedded in the cavity. The inner wall of the valve plate 61 is provided with a protrusion 611, and a plurality of protrusions 611 are arranged at intervals along the circumference of the valve plate 61. The plurality of protrusions 611 are arranged one-to-one with the installation cavity 112, and are used to close the notch on the installation cavity 112, thereby isolating the installation cavity 112 from the connecting cavity 113. The handle 62 is arranged on the outer side of the valve plate 61, and is used to drive the valve plate 61 to rotate, so that the protrusion 611 is close to the installation cavity 112 or away from the installation cavity 112.

[0111] When it is necessary to adjust the height of the supporting mechanism 50, the valve plate 61 is driven to rotate by the handle 62 to move the protrusion 611 away from the mounting cavity 112 to open the notch on the mounting cavity 112, so that each mounting cavity 112 is connected to the connecting cavity 113. At this time, the height of each leg 51 can be adjusted according to actual conditions. After the adjustment, the handle 62 is pulled again to move the protrusion 611 close to the mounting cavity 112 to close the notch on the mounting cavity 112. At this time, the air occupies the space in the mounting cavity 112, making the leg 51 unable to move, thereby achieving the positioning and fixation of the leg 51.

[0112] The observation mechanism 70 may include an eyepiece 71, a reflector 72, and a second sighting mirror 73. The eyepiece 71 may be mounted on the top of the column 12, the reflector 72 may be mounted on the support rod 31 and located at the bottom of the eyepiece 71, the second sighting mirror 73 may be mounted on the support rod 31 and arranged opposite to the reflector 72, and the point aimed at by the second sighting mirror 73 may be reflected to the eyepiece 71 through the reflector 72.

[0113] Specifically, when in use, the operator can first observe the eyepiece 71 to confirm whether the second sighting mirror 73 is aimed at the target point at the boundary of the area to be measured. If not, the height of the support mechanism 50 is adjusted by the adjustment mechanism 60 until the second sighting mirror 73 coincides with the target point at the boundary of the area to be measured. This setting can be used for measurement on uneven ground, and can make the support rod 31 parallel to the ground, thereby reducing measurement errors and improving measurement accuracy.

[0114] See also Fig.14In some embodiments of the present application, a limiting portion 114 may also be provided on the outer peripheral side of the seat body 11, and two limiting portions 114 are provided, and the two limiting portions 114 are respectively located on the left and right sides of the handle 62, and are used to limit the rotation angle of the handle 62. For example, when the handle 62 is rotated to contact the limiting portion 114 on the left, the protrusion 611 approaches the installation cavity 112 and completely closes the notch portion on the installation cavity 112. When the handle 62 is rotated to contact the limiting portion 114 on the right, the protrusion 611 is away from the installation cavity 112 and the notch portion on the installation cavity 112 is opened.

[0115] See also Fig. 20 The present invention also provides a land information measurement method based on remote sensing, which comprises the following steps:

[0116] Step S10: placing the land information monitoring device in the middle of the area to be measured;

[0117] Step S20: respectively adjusting the two sets of swing mechanisms 20 to swing up and down, so that the first sighting mirrors 22 on the two sets of swing mechanisms 20 are aimed at the same target point at the boundary of the area to be measured;

[0118] Step S30: locking and fixing the swing mechanism 20 by the first locking assembly 23;

[0119] Step S40: The two sets of swing mechanisms 20 swing up and down and drive the connecting rod mechanism 30 to move horizontally;

[0120] Step S50: the measuring block 41 moves synchronously with the connecting rod mechanism 30;

[0121] Step S60: After the two sets of swing mechanisms 20 aim at the target point, the connecting rod mechanism 30 and the measuring block 41 are locked and fixed;

[0122] Step S70: measuring and recording the distance moved by the measuring block 41 and the swing angle value of the swing mechanism 20, and calculating the actual distance from the land information monitoring device to the target point;

[0123] Step S80: rotating the swing mechanism 20 and the connecting rod mechanism 30 around the axis of the column 12 to make them face the next target point at the boundary of the area to be measured, and then repeating steps S20 to S70;

[0124] Step S90: Calculate the area of ​​the region to be measured according to the actual distance of each target point.

[0125] The above step S20 includes the following steps:

[0126] Step S21: adjust the swing mechanism 20 located on the upper part of the column 12 to swing up and down so that it aims at the target point at the boundary of the area to be measured, and position and fix the swing mechanism 20;

[0127] Step S22: adjust the swing mechanism 20 located at the lower part of the column 12 to swing up and down so that it aims at the same target point aimed at by the upper swing mechanism 20, and position and fix the swing mechanism 20.

[0128] In the above step S70, the actual distance from the land information monitoring device to the target point can be calculated by the trigonometric function principle, such as Figure 5 and Figure 6 As shown, after each target point is measured, a right triangle structure is formed between the swing mechanism 20 at point A, the target point C at the boundary of the measuring area aimed at by the two swing mechanisms 20, and the measuring position D, wherein the angle ∠A and the length of AD are both known (measured directly from the device), and the actual distance (i.e., the length of CD) between the measuring position in this direction (i.e., the position under the feet of the measurer) and the target point at the boundary of the area to be measured can be calculated based on the principle of trigonometric functions.

[0129] In the above step S90, the actual area of ​​the region to be measured can be calculated according to the actual distance of each target point and the angle between two adjacent target points (equal to the angle between the corresponding measurement blocks 41).

[0130] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0131] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A land information monitoring device based on remote sensing, characterized in that: include: A base (10) comprises a base body (11) and a column (12) vertically arranged at the center of the base body (11), wherein a plurality of mutually spaced slide grooves (111) are formed on the base body (11), and the plurality of slide grooves (111) are radially distributed with the column (12) as the center; Two groups of swing mechanisms (20) are arranged at intervals along the axial direction of the column (12), the first ends of the two groups of swing mechanisms (20) are connected to the column (12), and the second ends of the two groups of swing mechanisms (20) are able to swing up and down relative to the column (12) to aim at a target point at the boundary of the area to be measured; A connecting rod mechanism (30), a first end of which is connected to the two sets of swing mechanisms (20), and a second end of which extends in the direction of the slide groove (111), and the connecting rod mechanism (30) can move horizontally as the swing mechanism (20) swings up and down; A measuring mechanism (40) is arranged on the seat (11), and comprises a measuring block (41) slidably arranged in the sliding groove (111). The measuring block (41) is connected to the connecting rod mechanism (30) via a detachable connecting piece and can move synchronously with the connecting rod mechanism (30) to measure the displacement of the horizontal movement of the connecting rod mechanism (30).

2. The land information monitoring device based on remote sensing according to claim 1 is characterized in that: Each set of the swing mechanism (20) comprises: A swing arm (21) is rotatably connected to the column (12) and is capable of swinging up and down relative to the column (12); A first sighting mirror (22), fixed on the swing arm (21), used for aiming at a target point at the boundary of the area to be measured; A first locking assembly (23), arranged between the swing arm (21) and the column (12), and used for limiting the relative movement between the swing arm (21) and the column (12); An angle ruler (24) is arranged on the upright column (12) and coaxially with the swing arm (21), and is used to measure the swing angle of the swing arm (21).

3. The land information monitoring device based on remote sensing according to claim 1 is characterized in that: The connecting rod mechanism (30) comprises: A support rod (31) is rotatably connected to the column (12), and a guide groove (311) parallel to the slide groove (111) is provided on the support rod (31); a telescopic rod (32), a first end of which is connected to the two groups of the swing mechanisms (20), and a second end of which is connected to the measuring block (41) via the detachable connecting piece, and a sliding block (321) slidably connected to the guide groove (311) is also provided on the telescopic rod (32); The second locking assembly (33) is arranged between the telescopic rod (32) and the swing mechanism (20) and is used to lock and fix the connecting rod mechanism (30) after the two swing mechanisms (20) are aimed at a target point.

4. The land information monitoring device based on remote sensing according to claim 1 is characterized in that: The measuring mechanism (40) further comprises: A plurality of rollers (42) are arranged at the bottom of the measuring block (41) away from the connecting rod mechanism (30); An elastic band (43) is arranged on the bottom surface of the seat body (11) away from the pillar (12), and the elastic band (43) is sleeved on the outside of the plurality of rollers (42); A third locking assembly (44) is arranged between the seat body (11) and the measuring block (41) to lock or unlock the measuring block (41).

5. The land information monitoring device based on remote sensing according to claim 2 is characterized in that: The swing arm (21) is provided with a connecting sleeve (211), a through hole (2111) is provided in the connecting sleeve (211), a notch (2112) communicating with the through hole (2111) is provided on the side wall, and a connecting piece (121) is provided on the column (12), and the connecting piece (121) is sleeved on the outside of the connecting sleeve (211); The first locking assembly (23) comprises: A first locking member (231) is disposed in the notch (2112) and in contact with an inner wall of the connecting member (121); The first cam member (232) comprises a first cam shaft (2321) and a first knob (2322); the first cam shaft (2321) is rotatably connected to the through hole (2111) and is used to drive the first locking member (231) to move so that the first locking member (231) is pressed against the inner wall of the connecting member (121) to limit the swing of the swing arm (21); the first knob (2322) is arranged at one end of the first cam shaft (2321) extending to the outside of the swing arm (21).

6. The land information monitoring device based on remote sensing according to claim 3 is characterized in that: The second locking assembly (33) comprises: A mounting seat (331) slidably connected along the axial direction of the swing mechanism (20); A second locking member (332) is disposed on two opposite sides of the mounting seat (331) and is in contact with an inner wall of the swing mechanism (20); The second cam member (333) comprises a second cam shaft (3331) and a second knob (3332); the second cam shaft (3331) is rotatably connected to the center of the mounting seat (331) and is used to drive the second locking member (332) to move so that the second locking member (332) is pressed against the inner wall of the swing mechanism (20); the second knob (3332) is arranged at one end of the second cam shaft (3331) extending to the outside of the swing mechanism (20).

7. The land information monitoring device based on remote sensing according to claim 4 is characterized in that: The third locking assembly (44) comprises a third cam member (441), and the third cam member (441) comprises a third cam shaft (4411) and a third knob (4412). The third cam shaft (4411) is inserted into the slide groove (111) and contacts the measuring block (41), and the third knob (4412) is arranged at one end of the third cam shaft (4411) extending to the outside of the seat body (11).

8. The land information monitoring device based on remote sensing according to any one of claims 1 to 7, characterized in that: Also includes: A supporting mechanism (50) comprising a plurality of legs (51), wherein the plurality of legs (51) extend downward from the bottom surface of the seat body (11) away from the column (12); an adjusting mechanism (60), arranged on the base (11) and used for adjusting the height of the supporting mechanism (50); An observation mechanism (70) is arranged on the upright column (12) and the connecting rod mechanism (30) and is used to observe a target point at the boundary of the area to be measured.

9. The land information monitoring device based on remote sensing according to claim 8, characterized in that: The seat body (11) is provided with a cavity, the cavity comprising mounting cavities (112) arranged in one-to-one correspondence with the plurality of legs (51) and a connecting cavity (113) arranged around the circumference of the seat body (11); one end of the leg (51) is connected to the mounting cavity (112) and can move up and down along the mounting cavity (112); the connecting cavity (113) is connected to each of the mounting cavities (112); The regulating mechanism (60) comprises: a valve plate (61) sleeved on the outer periphery of the seat body (11) and partially embedded in the cavity, wherein the inner wall of the valve plate (61) is provided with a protrusion (611) for separating the installation cavity (112) from the connection cavity (113); A handle (62) is arranged on the outer side of the valve plate (61) and is used to drive the valve plate (61) to rotate so as to connect or disconnect the installation cavity (112) and the connection cavity (113).

10. A land information measurement method based on remote sensing, characterized in that: The measuring method comprises the following steps: Step S10: placing the land information monitoring device in the middle of the area to be measured; Step S20: respectively adjusting the two sets of swing mechanisms (20) to swing up and down, so that the first sighting mirrors (22) on the two sets of swing mechanisms (20) are aimed at the same target point at the boundary of the area to be measured; Step S30: locking and fixing the swing mechanism (20) by means of the first locking assembly (23); Step S40: The two sets of swing mechanisms (20) swing up and down and drive the connecting rod mechanism (30) to move horizontally at the same time; Step S50: the measuring block (41) moves synchronously with the connecting rod mechanism (30); Step S60: After the two sets of the swing mechanisms (20) are aimed at the target point, the connecting rod mechanism (30) and the measuring block (41) are locked and fixed; Step S70: measuring and recording the distance moved by the measuring block (41) and the angle value of the swing of the swing mechanism (20), and calculating the actual distance from the land information monitoring device to the target point; Step S80: rotating the swing mechanism (20) and the connecting rod mechanism (30) around the axis of the column (12) so that they face the next target point at the boundary of the area to be measured, and then repeating steps S20 to S70; Step S90: Calculate the area of ​​the region to be measured according to the actual distance of each target point.

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