Remote sensing surveying and mapping positioning device

Abstract

The invention discloses a remote sensing surveying and mapping positioning device, and relates to the technical field of remote sensing surveying and mapping devices, the remote sensing surveying and mapping positioning device comprises a base, the base is telescopically provided with a measuring instrument and a geometric positioning instrument, the bottom of the base is rotatably connected with a first rotating shaft, and the bottom end of the first rotating shaft is fixedly connected with a connecting block; and the magnetic shielding mechanism is connected to the bottom of the connecting block and comprises a plurality of length-adjustable brackets. The magnetic shielding mechanism is arranged, the magnetic field distribution of the area where the magnetic shielding mechanism is located is measured through the fluxgate magnetometer, the shielding magnetic field is formed by adjusting the angles of the multiple permanent magnets on the multiple supports and cooperating with the arc-shaped magnets, the shielding effect on the external magnetic field is achieved, the influence of the external magnetic field on the measuring instrument is reduced, and the measuring accuracy is improved while magnetic field shielding is conducted. Signal transmission is not greatly affected, and the working effect of the measuring instrument is improved.

Description

Technical Field

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

[0002] Remote sensing mapping is a technology that uses various sensors on the ground, aviation, and aerospace platforms to map the earth. Existing remote sensing mapping and positioning devices are easily disturbed by magnetic fields when performing surveying and mapping work, which affects the accuracy of surveying and mapping, especially when surveying and positioning in places with strong magnetic field interference, such as power plants and telecommunications towers and other equipment and places with strong magnetic fields. The magnetic field with excessive magnetic field strength will affect the reception of electromagnetic waves by the mapping device, resulting in excessive errors in the mapping data.

[0003] In the prior art, an electromagnetic shielding device or a shielding cover is usually used to shield the external magnetic field. However, this method also shields many electromagnetic wave signals when shielding the magnetic field, which is easy to affect the surveying and mapping device's reception of electromagnetic wave signals and is not conducive to improving the surveying and mapping effect of the surveying and mapping device. Summary of the invention

[0004] The purpose of the present invention is to solve the disadvantage that the electromagnetic shielding device or shielding cover in the prior art also shields many electromagnetic wave signals when shielding the external magnetic field, and to propose a remote sensing mapping and positioning device.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a remote sensing mapping and positioning device, comprising a base, the base is retractably equipped with a measuring instrument and a geometric positioning instrument, and also includes:

[0006] A magnetic shielding mechanism, wherein the bottom of the base is rotatably connected to a first rotating shaft, the bottom end of the first rotating shaft is fixedly connected to a connecting block, the magnetic shielding mechanism is connected to the bottom of the connecting block, the magnetic shielding mechanism comprises a plurality of brackets with adjustable lengths, the top ends of the plurality of brackets are fixedly rotatably connected to the bottom edge of the connecting block, and the bottom ends are fixedly rotatably connected to arc magnets, the brackets are rotatably connected to a plurality of permanent magnets at adjustable angles, a fluxgate magnetometer is installed at the bottom of the connecting block, the plurality of permanent magnets and the arc magnets have the same magnetic pole direction in an initial state, and the plurality of permanent magnets cooperate with the plurality of arc magnets to form a shielding magnetic field after adjusting the angle according to data of the fluxgate magnetometer;

[0007] The reflecting mechanism comprises a stretchable reflecting cloth, wherein a plurality of the reflecting cloths correspond to the gaps between a plurality of brackets one by one, and two ends of the reflecting cloths are detachably slidably matched with the side portions of adjacent brackets.

[0008] Preferably, a fixed shell is fixedly connected to the base, a support rod is fixedly connected to the bottom end of the measuring instrument, the support rod is slidably connected in the fixed shell, a plurality of through holes are opened on the fixed shell, a sliding clamp is slidably connected to the outer side of the fixed shell, a first bolt is threadedly connected to the sliding clamp, the end of the first bolt is snap-fitted with a through hole, and the geometric locator is mounted on the sliding clamp.

[0009] Preferably, a second rotating shaft is fixedly connected to the top of the bracket, a mounting groove is fixedly connected to the bottom of the connecting block, the second rotating shaft is rotatably connected inside the mounting groove, a fixing is installed on the mounting groove, and the fixing is used to lock the second rotating shaft after rotation.

[0010] Preferably, the bracket includes an upper frame, a stretching member and a lower frame, the upper frame and the lower frame are slidably connected with the same stretching member, the upper frame and the lower frame are threadedly connected with locking members, the end of the locking member is snap-fitted with the stretching member, the second rotating shaft and the permanent magnet are located on the upper frame, and the arc magnet is located on the lower frame.

[0011] Preferably, both sides of the bottom end of the lower frame are rotatably connected to rotating rods, and the bottom ends of the two rotating rods are rotatably connected to support rods. The rotating rods and the support rods are rotatably matched with the same second bolt, and the second bolt passes through the rotating rod and one end of the support rod and is threadedly connected with a nut, and the bottom ends of the two support rods are fixedly connected to the same arc-shaped magnet.

[0012] Preferably, a plurality of mounting openings are formed through the upper frame, and the plurality of permanent magnets correspond to the plurality of mounting openings one by one. A threaded shell is threadedly connected to the outer side of the upper frame on the side of the mounting opening, a connecting shaft is rotatably connected inside the threaded shell, an extrusion block is fixedly connected inside the connecting shaft, and the end portion passes through the upper frame and is fixedly connected to the side of the permanent magnet.

[0013] Preferably, one end of the connecting shaft extending outside the bracket is coaxially fixedly connected to a rotating head, and an anti-slip groove is provided on the rotating head.

[0014] Preferably, the internal structure of the permanent magnet and the arc magnet is a multi-layer nested structure with alternating magnetic poles, and the arc magnet is arc-shaped.

[0015] Preferably, first sliding grooves are provided on both sides of the lower frame, and engaging blocks are fixedly connected to both sides of the reflective cloth, and the engaging blocks are slidably matched with adjacent first sliding grooves.

[0016] Preferably, a plurality of magnetic strips are fixedly connected to the reflective cloth, the plurality of magnetic strips are evenly distributed, and the direction of the magnetic poles is consistent with the direction of the initial magnetic poles of the permanent magnet.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] 1. The present invention sets a magnetic shielding mechanism, measures the magnetic field distribution of the area by a fluxgate magnetometer, and forms a shielding magnetic field by adjusting the angles of multiple permanent magnets on multiple brackets and cooperating with arc magnets, thereby forming a shielding effect on the external magnetic field and reducing the influence of the external magnetic field on the measuring instrument. Compared with the prior art, the electromagnetic shielding instrument or shielding cover is used to shield the external magnetic field, which also shields many signals. The external magnetic field is counteracted by the cooperation between magnets and the change of the direction of the magnets. While shielding the magnetic field, it will not greatly affect the transmission of the signal, thereby improving the working effect of the measuring instrument.

[0019] 2. The present invention sets a magnetic shielding mechanism and a reflecting mechanism, and sets magnetic strips on the reflecting cloth. Based on the attraction of high magnetic permeability materials to magnetic lines of force, the direction of magnetic lines of force can be more accurately guided in a local area. At the same time, through the reflection of electromagnetic wave signals by the reflecting cloth, the charged particles in the reflected electromagnetic wave signals are affected by the shielding magnetic field, causing the propagation path of part of the electromagnetic wave signal to bend, thereby pointing to the measuring instrument, thereby enhancing the effect of the measuring instrument in receiving electromagnetic wave signals and improving remote sensing mapping and positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a remote sensing mapping and positioning device proposed by the present invention;

[0021] Figure 2 A schematic diagram of the structure of the cooperation between the sliding clamp and the geometric locator of a remote sensing mapping and positioning device proposed by the present invention;

[0022] Figure 3 A schematic diagram of the structure of the cooperation between the fixing part and the bracket of the remote sensing mapping and positioning device proposed by the present invention;

[0023] Figure 4 A schematic diagram of the structure of the support portion of a remote sensing mapping and positioning device proposed by the present invention;

[0024] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0025] Figure 6 for Figure 4 The enlarged structural diagram at B in the middle;

[0026] Figure 7 A schematic diagram of the threaded shell structure of a remote sensing mapping and positioning device proposed by the present invention;

[0027] Figure 8 A schematic diagram of the connecting shaft structure of a remote sensing mapping and positioning device proposed by the present invention;

[0028] Fig. 9A schematic diagram of the structure of the cooperation between the permanent magnet and the connecting shaft of a remote sensing mapping and positioning device proposed by the present invention;

[0029] Fig.10 A schematic diagram of the structure of the cooperation between a reflective cloth and a chimeric block of a remote sensing mapping and positioning device proposed by the present invention.

[0030] In the figure: 1, measuring instrument; 2, sliding clamp; 3, geometric locator; 4, first bolt; 501, fixed shell; 502, base; 503, first rotating axis; 6, connecting block; 7, fluxgate magnetometer; 8, bracket; 901, second rotating axis; 902, fixing part; 10, permanent magnet; 11, stretching part; 12, first slide groove; 13, connecting shaft; 14, threaded shell; 15, rotating rod; 16, second bolt; 17, nut; 18, support rod; 19, arc magnet; 20, reflecting cloth; 21, magnetic strip; 22, interlocking block. DETAILED DESCRIPTION

[0031] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0032] Reference Figure 1-Figure 3 , a remote sensing mapping and positioning device, comprising a base 502, the base 502 being retractably mounted with a measuring instrument 1 and a geometric positioning instrument 3, and further comprising:

[0033] Reference Figure 1 , Figure 3-Figure 4 A fixed shell 501 is fixedly connected to the base 502, a support rod is fixedly connected to the bottom end of the measuring instrument 1, the support rod is slidably connected in the fixed shell 501, a plurality of through holes are opened on the fixed shell 501, a sliding clamp 2 is slidably connected to the outer side of the fixed shell 501, a first bolt 4 is threadedly connected to the sliding clamp 2, the end of the first bolt 4 is engaged with a through hole, and the geometric locator 3 is installed on the sliding clamp 2.

[0034] A magnetic shielding mechanism, wherein the bottom of the base 502 is rotatably connected to a first rotating shaft 503, the bottom end of the first rotating shaft 503 is fixedly connected to a connecting block 6, the magnetic shielding mechanism is connected to the bottom of the connecting block 6, the magnetic shielding mechanism includes a plurality of brackets 8 with adjustable lengths, the top ends of the plurality of brackets 8 are rotatably fixedly connected to the bottom edge of the connecting block 6, and the bottom ends are rotatably fixedly connected to an arc magnet 19, the brackets 8 are rotatably connected to an adjustable angle with a plurality of permanent magnets 10, a fluxgate magnetometer 7 is installed at the bottom of the connecting block 6, the plurality of permanent magnets 10 and the arc magnet 19 have the same magnetic pole direction in an initial state, and the plurality of permanent magnets 10 cooperate with the plurality of arc magnets 19 to form a shielding magnetic field after adjusting the angle according to the data of the fluxgate magnetometer 7.

[0035] A second rotating shaft 901 is fixedly connected to the top of the bracket 8, and a mounting groove is fixedly connected to the bottom of the connecting block 6. The second rotating shaft 901 is rotatably connected inside the mounting groove, and a fixing member 902 is installed on the mounting groove. The fixing member 902 is used to lock the second rotating shaft 901 after rotation.

[0036] The bracket 8 includes an upper frame, a stretching member 11 and a lower frame. The upper frame and the lower frame are slidably connected with the same stretching member 11. The upper frame and the lower frame are threadedly connected with locking members, and the ends of the locking members are snap-fitted with the stretching member 11. The second rotating shaft 901 and the permanent magnet 10 are located on the upper frame, and the arc magnet 19 is located on the lower frame.

[0037] Reference Figure 4 and Figure 6 The bottom end of the lower frame is rotatably connected with a rotating rod 15 on both sides, and the bottom ends of the two rotating rods 15 are rotatably connected with a support rod 18. The rotating rod 15 and the support rod 18 are rotatably matched with the same second bolt 16. The second bolt 16 passes through the rotating rod 15 and one end of the support rod 18 and is threadedly connected with a nut 17. The bottom ends of the two support rods 18 are fixedly connected with the same arc-shaped magnet 19.

[0038] Reference Figure 5 , Figure 7 and Figure 8 A plurality of mounting openings are formed on the upper frame, and a plurality of permanent magnets 10 correspond to the plurality of mounting openings one by one. A threaded shell 14 is threadedly connected to the outer side of the upper frame on the side of the mounting opening, and a connecting shaft 13 is rotatably connected inside the threaded shell 14. An extrusion block is fixedly connected inside the connecting shaft 13, and the end portion passes through the upper frame and is fixedly connected to the side of the permanent magnet 10.

[0039] One end of the connecting shaft 13 extending out of the bracket 8 is coaxially fixedly connected to a rotating head, and an anti-skid groove is provided on the rotating head.

[0040] The internal structure of the permanent magnet 10 and the arc magnet 19 is a multi-layer nested structure with alternating magnetic poles, and the arc magnet 19 is arc-shaped.

[0041] Reference Figure 1 and Fig.10 , the reflecting mechanism includes a stretchable reflecting cloth 20, a plurality of reflecting cloths 20 correspond to the gaps between the plurality of brackets 8 one by one, and the two ends of the reflecting cloth 20 are detachably slidably matched with the side of the adjacent bracket 8.

[0042] First slide grooves 12 are provided on both sides of the lower frame, and engaging blocks 22 are fixedly connected to both sides of the reflective cloth 20 , and the engaging blocks 22 are slidably matched with adjacent first slide grooves 12 .

[0043] A plurality of magnetic strips 21 are fixedly connected to the reflective cloth 20 . The plurality of magnetic strips 21 are evenly distributed, and the magnetic pole directions of the magnetic strips 21 are consistent with the initial magnetic pole directions of the permanent magnets 10 .

[0044] In the present invention, when surveying and positioning is performed in a place with strong magnetic field interference, a suitable position is first found for placement, the bracket 8 is rotated through the second rotation axis 901, and then the second rotation axis 901 is fixed by the fixing member 902 to position the bracket 8, and the length of the bracket 8 is adjusted by adjusting the stretching member 11 installed on the bracket 8, so that the measuring instrument 1 can be at a horizontal level;

[0045] Then, the rotating rod 15 provided on the outer surface of the bracket 8 is rotated to make the arc-shaped magnet 19 contact the ground, and then the angle of the support rod 18 is adjusted by loosening and tightening the second bolt 16 and the nut 17, so that the arc-shaped magnet 19 can be completely close to the ground;

[0046] Then, the reflective cloth 20 is installed on the first slide groove 12 of the bracket 8 through the engaging block 22;

[0047] Then, the measuring instrument 1 is rotated and adjusted by rotating the first rotating shaft 503 provided on the base 502, and the height of the measuring instrument 1 is determined by the sliding clamp 2 provided on the outer side of the fixed shell 501, and then the first bolt 4 is tightened;

[0048] After all the reflective cloths 20 are installed, the geometric locator 3 is turned on to position the device. The geometric locator 3 is installed on the sliding clamp 2 to ensure that the device is in a stable state.

[0049] Then, the fluxgate magnetometer 7 is turned on. The fluxgate magnetometer 7 is installed on the connection block 6 to start detecting the intensity level of the surrounding magnetic field and the flow direction of the magnetic field. After the measurement is completed, the permanent magnet 10 is adjusted.

[0050] There are three permanent magnets 10 on each bracket 8, which initially have the same magnetic poles and can be replaced by disassembling the bracket 8, and the reason for replacement is determined according to the existing external magnetic field;

[0051] Then, the threaded shell 14 is rotated outward to release the locking of the connecting shaft 13 by the extrusion block on the connecting shaft 13, and the connecting shaft 13 is rotated to rotate the permanent magnet 10. The angle of the permanent magnet 10 is adjusted according to the data of the fluxgate magnetometer 7, which can resist the external magnetic field to the maximum extent. The core principle is to adjust the direction of the magnet so that the magnetic field generated by multiple permanent magnets 10 can offset the external magnetic field as much as possible.

[0052] When the direction of the external magnetic field changes, the permanent magnet 10 also rotates and changes accordingly, so that the shielding magnetic field formed by the permanent magnet 10 and the external magnetic field are always kept in a state of mutual confrontation, thereby reducing the magnetic field strength entering the protected area;

[0053] The permanent magnets 10 on the multiple brackets 8 form a ring-shaped arrangement, which can make the magnetic field shielding more uniform, and the internal structure of the permanent magnets 10 is a multi-layer nested structure with alternating magnetic poles. This arrangement can guide the magnetic field lines of the external magnetic field to form a continuous closed path between the multi-layer magnets. This arrangement can significantly reduce external magnetic field interference;

[0054] The arc magnet 19 connected to the support rod 18 has the same magnetic pole direction as the permanent magnet 10, so that the magnetic lines of force of the external magnetic field can be guided to be distributed along the arrangement direction of the arc magnet 19 and multiple permanent magnets 10. Since the magnetic lines of force have the characteristic of being conducted along materials with high magnetic permeability, the external magnetic field will be attracted by the arc magnet 19 and the permanent magnet 10 and change its path, so that the magnetic field is more concentrated on the arc magnet 19 and the permanent magnet 10 and their surroundings to form a shielding magnetic field, reducing the magnetic field strength of the magnetic field entering the internal protection area of ​​the shielding magnetic field, and better magnetic field shielding can be performed;

[0055] The arc magnet 19 is also a multi-layer nested magnet, and the arc design uses the shape of the magnet to change the distribution of magnetic lines of force. When the arc magnet 19 is arc-shaped, the magnetic lines of force will be more naturally distributed and converged along the arc surface. The magnetic lines of force enter from one end of the arc magnet 19, and will follow the curve direction of the arc, and finally converge to the other end of the arc magnet 19, thereby making the distribution of the magnetic field more stable, and at the same time, guiding the magnetic lines of force of the external magnetic field to bypass the internal area that needs to be shielded, and will not affect the operation of the surveying and mapping device;

[0056] The reflective cloth 20 can receive signals and external electromagnetic waves. In the prior art, when the external magnetic field is shielded by an electromagnetic shielding device or a shielding cover, both the magnetic field and many signals are shielded, thereby reducing the reception of signals and electromagnetic waves during surveying and mapping. A magnetic strip 21 is installed on the upper part of the reflective cloth 20;

[0057] At the same time, the device is not a closed magnetic field and will not greatly affect the transmission of signals. When the electromagnetic wave signal is emitted to the arc-shaped reflection cloth 20, the electromagnetic wave signal will pass through the weaker magnetic field at the gap between the adjacent brackets 8 and irradiate the reflection cloth 20, thereby reflecting to the stronger magnetic field range where the multiple permanent magnets 10 on the bracket 8 form a shielding magnetic field. The charged particles in the electromagnetic wave signal will be affected by the Lorentz force of the stronger magnetic field, causing the propagation path to bend, making it easy for part of the electromagnetic wave to be reflected by the reflection cloth 20 to the direction of the measuring instrument 1. The specific situation depends on multiple factors such as the strength and direction of the magnetic field and the initial propagation direction of the electromagnetic wave.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A remote sensing mapping and positioning device, comprising a base (502), wherein the base (502) is retractably mounted with a measuring instrument (1) and a geometric positioning instrument (3), characterized in that: Also includes: A magnetic shielding mechanism, wherein the bottom of the base (502) is rotatably connected to a first rotating shaft (503), the bottom end of the first rotating shaft (503) is fixedly connected to a connecting block (6), the magnetic shielding mechanism is connected to the bottom of the connecting block (6), the magnetic shielding mechanism comprises a plurality of brackets (8) of adjustable length, the top ends of the plurality of brackets (8) are fixedly rotatably connected to the bottom edge of the connecting block (6), and the bottom ends are fixedly rotatably connected to an arc magnet (19), the brackets (8) are rotatably connected to a plurality of permanent magnets (10) at adjustable angles, a fluxgate magnetometer (7) is installed at the bottom of the connecting block (6), the plurality of permanent magnets (10) and the arc magnets (19) have the same magnetic pole direction in an initial state, and the plurality of permanent magnets (10) cooperate with the plurality of arc magnets (19) to form a shielding magnetic field after adjusting the angle according to data of the fluxgate magnetometer (7); The reflecting mechanism comprises a stretchable reflecting cloth (20), wherein a plurality of the reflecting cloths (20) correspond to the gaps between a plurality of brackets (8) one by one, and the two ends of the reflecting cloths (20) are detachably slidably matched with the side of the adjacent bracket (8).

2. A remote sensing mapping and positioning device according to claim 1, characterized in that: A fixed shell (501) is fixedly connected to the base (502), a support rod is fixedly connected to the bottom end of the measuring instrument (1), the support rod is slidably connected in the fixed shell (501), a plurality of through holes are opened on the fixed shell (501), a sliding clamp (2) is slidably connected to the outer side of the fixed shell (501), a first bolt (4) is threadedly connected to the sliding clamp (2), an end of the first bolt (4) is snap-fitted with a through hole, and the geometric positioning instrument (3) is mounted on the sliding clamp (2).

3. A remote sensing mapping and positioning device according to claim 1, characterized in that: The top of the bracket (8) is fixedly connected to a second rotating shaft (901), the bottom of the connecting block (6) is fixedly connected to a mounting groove body, the second rotating shaft (901) is rotatably connected inside the mounting groove body, a fixing member (902) is installed on the mounting groove body, and the fixing member (902) is used to lock the second rotating shaft (901) after rotation.

4. The remote sensing mapping and positioning device according to claim 1, characterized in that: The bracket (8) comprises an upper frame, a stretching member (11) and a lower frame, wherein the upper frame and the lower frame are slidably connected with the same stretching member (11), the upper frame and the lower frame are threadedly connected with locking members, and the ends of the locking members are snap-fitted with the stretching member (11), the second rotating shaft (901) and the permanent magnet (10) are located on the upper frame, and the arc magnet (19) is located on the lower frame.

5. A remote sensing mapping and positioning device according to claim 4, characterized in that: Both sides of the bottom end of the lower frame are rotatably connected to rotating rods (15), and the bottom ends of the two rotating rods (15) are rotatably connected to support rods (18). The rotating rods (15) and the support rods (18) are rotatably matched with the same second bolt (16). The second bolt (16) passes through the rotating rod (15) and one end of the support rod (18) and is threadedly connected to a nut (17). The bottom ends of the two support rods (18) are fixedly connected to the same arc-shaped magnet (19).

6. A remote sensing mapping and positioning device according to claim 4, characterized in that: The upper frame is provided with a plurality of installation openings, the plurality of permanent magnets (10) corresponding to the plurality of installation openings one by one, a threaded shell (14) is threadedly connected to the outer side of the upper frame on the side of the installation opening, a connecting shaft (13) is rotatably connected inside the threaded shell (14), an extrusion block is fixedly connected inside the connecting shaft (13), and an end portion thereof passes through the upper frame and is fixedly connected to the side of the permanent magnet (10).

7. A remote sensing mapping and positioning device according to claim 6, characterized in that: One end of the connecting shaft (13) extending outside the bracket (8) is coaxially fixedly connected to a rotating head, and an anti-slip groove is provided on the rotating head.

8. The remote sensing mapping and positioning device according to claim 1, characterized in that: The internal structure of the permanent magnet (10) and the arc-shaped magnet (19) is a multi-layer nested structure with alternating magnetic poles, and the arc-shaped magnet (19) is arc-shaped.

9. The remote sensing mapping and positioning device according to claim 4, characterized in that: First slide grooves (12) are provided on both sides of the lower frame, and engaging blocks (22) are fixedly connected to both sides of the reflective cloth (20), and the engaging blocks (22) are slidably matched with adjacent first slide grooves (12).

10. A remote sensing mapping and positioning device according to claim 9, characterized in that: A plurality of magnetic strips (21) are fixedly connected to the reflective cloth (20); the plurality of magnetic strips (21) are evenly distributed, and the direction of the magnetic poles is consistent with the initial magnetic pole direction of the permanent magnet (10).

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