A mobile remote sensing mapping platform based on multispectral fusion

Abstract

The utility model relates to the field of surveying and mapping science and technology discloses a kind of mobile remote sensing surveying and mapping platform based on multispectral fusion, including unmanned aerial vehicle main part, the bottom of unmanned aerial vehicle main part is uniformly connected with multiple support rods, the bottom of multiple support rods is fixedly connected with mounting plate, the bottom of mounting plate is installed with fixed mechanism, the bottom of mounting plate is installed with cleaning mechanism, the bottom of mounting plate is detachably connected with multispectral camera main body, the inside fixed connection of cleaning mechanism has electric push rod, the fixed mechanism includes fixed plate, the inner wall of fixed plate is uniformly connected with multiple connecting columns with sliding. In the utility model, the replacement assembly of being convenient for replacement is adopted, avoid the need to twist more fixed parts when replacing, so that it cannot flexibly cope with different scenes, poor adaptability, at the same time replacement is complicated, prolongs downtime, reduces operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of surveying and mapping science and technology, and in particular to a mobile remote sensing and mapping platform based on multispectral fusion. Background Technology

[0002] Mobile remote sensing and mapping platforms based on multispectral fusion utilize mobile carriers equipped with multispectral cameras to achieve high-precision, dynamic geospatial information acquisition by fusing data from multiple sources. This overcomes the limitations of single remote sensing in terms of spectral and spatial resolution or scene adaptability, improves the efficiency and accuracy of mapping in complex scenes, provides detailed data for crop monitoring, environmental assessment, and emergency disaster relief, promotes the development of remote sensing technology towards lightweight and real-time applications, facilitates the cross-disciplinary application of surveying and mapping, and helps upgrade fields such as smart agriculture and smart cities. It has significant scientific value and practical significance.

[0003] The mobile remote sensing and mapping platform based on multispectral fusion uses a mobile carrier to carry a multispectral camera and auxiliary equipment to collect reflection information of ground objects in multiple bands such as visible light and near infrared according to a preset path. At the same time, it acquires GNSS positioning and IMU attitude data. After preprocessing to eliminate noise and distortion, the multispectral data is fused with LiDAR, RGB imagery, etc. through pixel-level, feature-level, or decision-level algorithms to complement and enhance the information dimensions. Finally, the platform interprets the ground object type and parameters, outputs high-precision surveying and mapping results, and realizes the whole process of "dynamic acquisition-fusion enhancement-precise interpretation", breaking through the information limitations of single remote sensing.

[0004] In existing technologies, some multispectral fusion-based mobile remote sensing mapping platforms often require the turning of many fasteners when changing equipment for mapping, which makes them unable to flexibly adapt to different scenarios, resulting in poor adaptability. At the same time, replacement is cumbersome, prolongs downtime, and reduces work efficiency. Therefore, a mobile remote sensing mapping platform based on multispectral fusion is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a mobile remote sensing mapping platform based on multispectral fusion, which aims to improve the problems in the existing technology where the need to twist many fasteners during replacement makes it unable to flexibly cope with different scenarios, has poor adaptability, and is cumbersome to replace, prolonging downtime and reducing work efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mobile remote sensing and mapping platform based on multispectral fusion includes a drone body. Multiple support rods are fixedly connected to the bottom of the drone body. A mounting plate is fixedly connected to the bottom of the multiple support rods. A fixing mechanism is installed at the bottom of the mounting plate. A cleaning mechanism is installed at the bottom of the mounting plate. A multispectral camera body is detachably connected to the bottom of the mounting plate. An electric push rod is fixedly connected inside the cleaning mechanism.

[0008] The fixing mechanism includes a fixing plate, and multiple connecting columns are slidably connected to the inner wall of the fixing plate. A self-locking component is fixedly connected to the other side of each connecting column.

[0009] As a further description of the above technical solution:

[0010] The self-locking assembly includes a connecting rod, the outer wall of which is fixedly connected to the other side of the connecting post, and two rotating rods fixedly connected to the inner wall of each connecting rod, with limit blocks rotatably connected to the outer walls of the two rotating rods.

[0011] As a further description of the above technical solution:

[0012] One end of the spring is fixedly connected to the outer wall of the connecting rod, and the other end of the spring is fixedly connected to the fixing post. The inner wall of the connecting post is slidably connected to the inner wall of the fixing post, and the outer wall of the limiting block is slidably connected to the inner wall of the fixing post.

[0013] As a further description of the above technical solution:

[0014] A rotating ring is fixedly connected to one side of the connecting column, and a screw is threadedly connected to the outer wall of the rotating ring. The outer wall of the screw contacts the top of the fixed plate.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the fixing column is slidably connected to the inner wall of the fixing plate, and the outer wall of the fixing column is slidably connected to the inner wall of the mounting plate.

[0017] As a further description of the above technical solution:

[0018] The cleaning mechanism includes a protective cover, the outer wall of which is fixedly connected to the outer wall of the multispectral camera body. Multiple fixing blocks are fixedly connected to the outer wall of the protective cover, and cleaning components are fixedly connected to the inner walls of the multiple fixing blocks.

[0019] As a further description of the above technical solution:

[0020] The cleaning assembly includes a sliding rod, with both ends of the sliding rod fixedly connected to the inner walls of two of the fixed blocks. Multiple nozzles are fixedly connected to the inner wall of the sliding rod. A water supply pipe is fixedly connected to one side of the sliding rod, and a water tank is fixedly connected to the other end of the water supply pipe. The outer wall of the water tank is fixedly connected to the top of the mounting plate.

[0021] As a further description of the above technical solution:

[0022] A scraper is slidably connected to the outer wall of the sliding rod. The outer wall of the scraper is in contact with the outer wall of the protective cover. The inner wall of the scraper is fixedly connected to the drive end of the electric push rod.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the spring is contracted by pressing down the connecting column, and after the fixing column is placed in, the connecting column is released, the spring returns to its original position, the limiting block contacts the mounting plate, and the rotating ring is rotated to contact the fixing plate. The operation is repeated to fix the fixing plate, and then the multispectral camera body is installed to complete the fixation. When replacing, the two can be separated. However, this makes it difficult to replace the multispectral sensor with an appropriate one according to the task requirements, and it cannot flexibly cope with different scenarios, resulting in poor adaptability.

[0025] 2. In this utility model, water in the water tank is delivered to the sliding rod through the water supply pipe, and then sprayed onto the surface of the protective cover through the nozzle. The electric push rod is activated, and the drive end pushes the scraper to move, cleaning the surface of the protective cover and completing the cleaning work. This prevents the accumulation of dust and dirt from causing light spots, obstruction, or spectral signal distortion during data acquisition, which would directly reduce data accuracy and affect the reliability of subsequent fusion analysis and mapping results. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a mobile remote sensing mapping platform based on multispectral fusion proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a water delivery pipe for a mobile remote sensing mapping platform based on multispectral fusion proposed in this utility model.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the structure of a water tank for a mobile remote sensing mapping platform based on multispectral fusion proposed in this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0031] Legend:

[0032] 1. UAV body; 2. Support rod; 3. Mounting plate; 4. Fixing mechanism; 41. Fixing plate; 42. Connecting column; 43. Rotating ring; 44. Screw; 45. Self-locking component; 451. Connecting rod; 452. Rotating rod; 453. Limiting block; 454. Spring; 455. Fixing column; 5. Cleaning mechanism; 51. Protective cover; 52. Fixing block; 53. Cleaning component; 531. Sliding rod; 532. Nozzle; 533. Water tank; 534. Water pipe; 535. Scraper; 6. Electric push rod; 7. Multispectral camera body. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a mobile remote sensing and mapping platform based on multispectral fusion, including a drone body 1. The drone body 1 is the core load-bearing and flight component of the entire mobile remote sensing and mapping platform based on multispectral fusion. Multiple support rods 2 are fixedly connected to the bottom of the drone body 1. The support rods 2 connect the drone body 1 to the mounting plate 3 to form a stable force-bearing structure. The mounting plate 3 is fixedly connected to the bottom of the multiple support rods 2. The mounting plate 3 is used to install the fixing mechanism 4, the cleaning mechanism 5, and the key load-bearing components of the multispectral camera body 7. The fixing mechanism 4 is installed at the bottom of the mounting plate 3. The fixing mechanism 4 is the core mechanism that realizes the stable connection between the multispectral camera body 7 and the drone body 1 and facilitates replacement.

[0035] The bottom of the mounting plate 3 is equipped with a cleaning mechanism 5. The cleaning mechanism 5 performs cleaning operations such as wiping the protective cover 51 in front of the lens of the multispectral camera. It is an important auxiliary mechanism to ensure the measurement accuracy of the multispectral camera. The bottom of the mounting plate 3 is detachably connected to the multispectral camera body 7. The multispectral camera body 7 is the core equipment of the entire mobile remote sensing and mapping platform to realize the multispectral fusion remote sensing and mapping function. The cleaning mechanism 5 is internally fixedly connected with an electric push rod 6. The electric push rod 6 is the core driving component for the cleaning mechanism 5 to realize the cleaning function.

[0036] The fixing mechanism 4 includes a fixing plate 41, which indirectly fixes the multispectral camera body 7 to the UAV body 1 through the connection with the mounting plate 3. Multiple connecting posts 42 are slidably connected to the inner wall of the fixing plate 41. The connecting posts 42 are used to drive the spring 454 in the self-locking assembly 45 to contract, creating conditions for the fixing post 455 to enter the fixing plate 41 and the mounting plate 3. When the pressure is released, under the reset action of the spring 454, the connecting post 42 can drive the relevant components to achieve the fixing function. The self-locking assembly 45 is fixedly connected to the other side of the connecting post 42. Through the synergistic action of the components, the self-locking assembly 45 ensures that the fixing post 455 can be stably connected to the fixing plate 41 and the mounting plate 3.

[0037] The self-locking assembly 45 includes a connecting rod 451, which serves as a bridge connecting the connecting post 42 and other components of the self-locking assembly 45. The outer wall of the connecting rod 451 is fixedly connected to the other side of the connecting post 42. Two rotating rods 452 are fixedly connected to the inner wall of the connecting rod 451. The rotating rods 452 provide a fulcrum for the rotation of the limiting block 453. The outer walls of the two rotating rods 452 are rotatably connected to the limiting block 453. When the spring 454 is reset, the limiting block 453 moves upward with the connecting rod 451, and one end of it is in close contact with the bottom of the mounting plate 3. It uses its own structure to prevent the fixing post 455 from coming out of the mounting hole of the mounting plate 3 and the fixing plate 41, thereby achieving the initial fixed limiting function. One end of the spring 454 is fixedly connected to the outer wall of the connecting rod 451.

[0038] The other end of the spring 454 is fixedly connected to a fixing post 455. The fixing post 455 is a key component connecting the fixing plate 41 and the mounting plate 3, and at the same time ensures that the connecting post 42 can smoothly drive the relevant components to move. The inner wall of the connecting post 42 is slidably connected to the inner wall of the fixing post 455, and the outer wall of the limiting block 453 is slidably connected to the inner wall of the fixing post 455.

[0039] A rotating ring 43 is fixedly connected to one side of the connecting column 42. The contact or separation of the rotating ring 43 with the fixing plate 41 further strengthens or releases the fixed relationship between the connecting column 42 and the fixing plate 41. A screw 44 is threadedly connected to the outer wall of the rotating ring 43. The screw 44 ensures the fixing effect of the entire fixing mechanism 4 on the fixing plate 41. The outer wall of the screw 44 is in contact with the top of the fixing plate 41. The outer wall of the fixing column 455 is slidably connected to the inner wall of the fixing plate 41. The outer wall of the fixing column 455 is slidably connected to the inner wall of the mounting plate 3.

[0040] Reference Figure 2 , Figure 4 and Figure 5The cleaning mechanism 5 includes a protective cover 51, which is used to prevent dust, water vapor, small particles and other debris from directly contacting the lens during flight, thus avoiding scratches or contamination of the lens. The outer wall of the protective cover 51 is fixedly connected to the outer wall of the multispectral camera body 7. Multiple fixing blocks 52 are fixedly connected to the outer wall of the protective cover 51. The fixing blocks 52 ensure that the sliding rod 531 will not be displaced or shaken during operation, so as to achieve precise cleaning of the surface of the protective cover 51. The inner walls of the multiple fixing blocks 52 are fixedly connected to cleaning components 53. The cleaning components 53 spray water through nozzles 532 to moisten the stains, and then the scraper 535 scrapes off the stains, thus achieving the cleaning of the surface of the protective cover 51.

[0041] The cleaning component 53 includes a sliding rod 531, which provides an installation position for the nozzles 532 and serves as a track for the scraper 535 to slide. Both ends of the sliding rod 531 are fixedly connected to the inner walls of two fixing blocks 52. Multiple nozzles 532 are fixedly connected to the inner wall of the sliding rod 531. The nozzles 532 precisely deliver cleaning water to the stains on the protective cover 51, wetting and softening the stains to prepare them for the subsequent scraping action of the scraper 535, thus improving the cleaning effect. A water supply pipe 534 is fixedly connected to one side of the sliding rod 531, which delivers water from the water tank 533. Cleaning water is delivered to the interior of the sliding rod 531. The other end of the water supply pipe 534 is fixedly connected to a water tank 533. The water tank 533 is used to store clean water or special cleaning solution required for cleaning the protective cover 51. The outer wall of the water tank 533 is fixedly connected to the top of the mounting plate 3. A scraper 535 is slidably connected to the outer wall of the sliding rod 531. The scraper 535 slides back and forth along the outer wall of the sliding rod 531 to thoroughly scrape the surface of the protective cover 51 and complete the cleaning action. The outer wall of the scraper 535 is in contact with the outer wall of the protective cover 51. The inner wall of the scraper 535 is fixedly connected to the drive end of the electric push rod 6.

[0042] Working principle: When it is necessary to fix the multispectral camera body 7 to the drone body 1 for easy replacement, align the fixing plate 41 with the mounting plate 3, then press the connecting post 42 downwards to retract the spring 454. Then, insert the fixing post 455 into the fixing plate 41 and the mounting plate 3, and then release the connecting post 42 to reset the spring 454. At this time, the limiting block 453 contacts the mounting plate 3. Then, rotate the screw 44 to make it contact the fixing plate 41. Repeat the above steps to fix the fixing plate 41 to the mounting plate 3. Then, install the multispectral camera body 7 on the fixing plate 41. This completes the fixing of the multispectral camera body 7 to the drone body 1. When replacement is needed, simply separate the fixing plate 41 from the mounting plate 3.

[0043] When it is necessary to clean the protective cover 51 outside the multispectral camera body 7, water from the water tank 533 is delivered to the sliding rod 531 through the water pipe 534. Then, the water is sprayed onto the surface of the protective cover 51 through the nozzle 532. Subsequently, the electric push rod 6 is activated. At this time, the drive end of the electric push rod 6 pushes the scraper 535 to move. Then, the scraper 535 cleans the surface of the protective cover 51, so that the surface of the protective cover 51 is cleaned. This prevents frequent shutdowns due to manual cleaning, which is cumbersome in complex environments such as the field and high altitudes, reducing work efficiency and increasing labor costs and safety risks.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mobile remote sensing mapping platform based on multispectral fusion, comprising a UAV body (1), characterized in that: The bottom of the main body (1) of the drone is fixedly connected to multiple support rods (2), the bottom of the multiple support rods (2) is fixedly connected to a mounting plate (3), the bottom of the mounting plate (3) is installed with a fixing mechanism (4), the bottom of the mounting plate (3) is installed with a cleaning mechanism (5), the bottom of the mounting plate (3) is detachably connected to a multispectral camera body (7), and an electric push rod (6) is fixedly connected inside the cleaning mechanism (5). The fixing mechanism (4) includes a fixing plate (41), and a plurality of connecting columns (42) are slidably connected to the inner wall of the fixing plate (41). A self-locking component (45) is fixedly connected to the other side of the connecting column (42).

2. The mobile remote sensing mapping platform based on multispectral fusion according to claim 1, characterized in that: The self-locking assembly (45) includes a connecting rod (451), the outer wall of which is fixedly connected to the other side of the connecting column (42), and the inner wall of the connecting rod (451) is fixedly connected to two rotating rods (452), and the outer walls of the two rotating rods (452) are rotatably connected to limit blocks (453).

3. A mobile remote sensing mapping platform based on multispectral fusion according to claim 2, characterized in that: One end of a spring (454) is fixedly connected to the outer wall of the connecting rod (451), and the other end of the spring (454) is fixedly connected to a fixing post (455). The inner wall of the connecting post (42) is slidably connected to the inner wall of the fixing post (455), and the outer wall of the limiting block (453) is slidably connected to the inner wall of the fixing post (455).

4. A mobile remote sensing mapping platform based on multispectral fusion according to claim 1, characterized in that: A rotating ring (43) is fixedly connected to one side of the connecting column (42), and a screw (44) is threadedly connected to the outer wall of the rotating ring (43). The outer wall of the screw (44) is in contact with the top of the fixing plate (41).

5. A mobile remote sensing mapping platform based on multispectral fusion according to claim 3, characterized in that: The outer wall of the fixed column (455) is slidably connected to the inner wall of the fixed plate (41), and the outer wall of the fixed column (455) is slidably connected to the inner wall of the mounting plate (3).

6. A mobile remote sensing mapping platform based on multispectral fusion according to claim 1, characterized in that: The cleaning mechanism (5) includes a protective cover (51), the outer wall of which is fixedly connected to the outer wall of the multispectral camera body (7), and a plurality of fixing blocks (52) are fixedly connected to the outer wall of the protective cover (51), and a cleaning component (53) is fixedly connected to the inner wall of the plurality of fixing blocks (52).

7. A mobile remote sensing mapping platform based on multispectral fusion according to claim 6, characterized in that: The cleaning component (53) includes a sliding rod (531), both ends of which are fixedly connected to the inner walls of two of the fixing blocks (52). Multiple nozzles (532) are fixedly connected to the inner wall of the sliding rod (531). A water supply pipe (534) is fixedly connected to one side of the sliding rod (531), and a water tank (533) is fixedly connected to the other end of the water supply pipe (534). The outer wall of the water tank (533) is fixedly connected to the top of the mounting plate (3).

8. A mobile remote sensing mapping platform based on multispectral fusion according to claim 7, characterized in that: The outer wall of the sliding rod (531) is slidably connected to a scraper (535), the outer wall of the scraper (535) is in contact with the outer wall of the protective cover (51), and the inner wall of the scraper (535) is fixedly connected to the drive end of the electric push rod (6).

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