A portable remote sensing detection device

Abstract

The utility model relates to remote sensing detection technical field especially, and more particularly to a kind of portable remote sensing detection device, including upper shell and lower shell, upper shell lower side is closed and connected with lower shell by bolt, lower shell inside is equipped with integrated bottom plate, integrated bottom plate bottom is installed with FPGA development board by screw, upper shell left end face is sealed and installed with lens, integrated bottom plate upper left lower side position is installed with microscopic objective lens by microscopic objective lens support cooperation bolt, microscopic objective lens right side is installed with focusing lens by focusing lens support cooperation bolt, focusing lens right side is installed with image mapper by image mapper support cooperation bolt.The utility model will mapping type imaging spectrometer system and FPGA development board be embedded into device structure, formed a remote sensing detection device with high integration, device integration is high, avoid the condition of device scattered caused by traditional mapping type imaging spectrometer system and FPGA simple connection, can be used as the front-end device of detection.

Description

Technical Field

[0001] This utility model relates to the field of remote sensing technology, and more specifically, to a portable remote sensing device. Background Technology

[0002] In existing technologies, imaging spectrometer (IMS) systems are typically configured as image processing devices by directly connecting them to an FPGA on the desktop. However, this existing technology has a significant drawback: low integration. The simple connection between the IMS system and the FPGA results in a relatively fragmented device that requires numerous components to be carried and assembled individually, leading to poor portability and inconvenience for carrying and use.

[0003] Therefore, there is an urgent need for a highly integrated portable remote sensing device to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing systems, the purpose of this invention is to provide a portable remote sensing device that changes the fragmented nature of traditional IMS systems and FPGAs, creating a highly integrated device that integrates both the IMS system and the FPGA development board, making the device portable and practical.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A portable remote sensing device includes an upper housing and a lower housing. The lower housing is bolted to the lower side of the upper housing. An integrated base plate is located inside the lower housing. An interface panel is located on the front surface of the lower housing. An FPGA development board is mounted on the bottom of the integrated base plate with screws. A lens is sealed and mounted on the left end face of the upper housing. A microscope objective is mounted on the lower left side of the integrated base plate with bolts and a microscope objective bracket. A focusing lens is mounted on the right side of the microscope objective with bolts and a focusing lens bracket. An image mapper is mounted on the right side of the focusing lens with bolts and an image mapper bracket. A collimating lens is mounted on the upper left side of the image mapper with bolts and a collimating lens bracket. A CCD camera is mounted on the upper left side of the collimating lens with bolts and a camera bracket. A microlens array is located in front of the CCD camera, and a polarization grating is fixed in front of the microlens array.

[0007] Furthermore, the image mapper is a tilted structure with an angle of 45° to the X-axis. The axes of the lens, microscope objective, and focusing lens are coaxial. The axes of the image mapper, collimating lens, microlens array, and CCD camera are also coaxial. The axis of the focusing lens intersects the axis of the image mapper, with an angle of 45° between them.

[0008] Furthermore, each of the four corners inside the lower housing is fixed with a support post with threaded holes, and the four corners of the integrated base plate are connected to the support post by screws.

[0009] The connection between the upper and lower housings is sealed with a rubber sealing gasket.

[0010] Furthermore, a light-shielding baffle is fixedly provided on the integrated base plate, and the upper end face of the light-shielding baffle is in contact with the top wall of the upper housing. The light-shielding baffle is located in the area between the microscope objective and the camera bracket, as well as between the focusing lens and the collimating lens.

[0011] Furthermore, the interface panel is provided with two sets of power interfaces, two sets of USB interfaces, an Ethernet interface and an HDMI interface from left to right. One set of power interfaces is electrically connected to the CCD camera, and the other set of power interfaces is electrically connected to the FPGA development board. The two sets of USB interfaces and the HDMI interface are all electrically connected to the FPGA development board, and the Ethernet interface is connected to the FPGA development board via a network cable.

[0012] Furthermore, a long strip-shaped wiring channel is provided at the upper left corner of the integrated base plate.

[0013] Furthermore, the camera bracket consists of an upper plate, long screws, and a lower plate, with the upper plate and lower plate spaced apart and connected by several long screws and nuts. The CCD camera and microlens array are clamped and installed between the upper plate and the lower plate.

[0014] Furthermore, the light transmission path sequence in this device is: lens, microscope objective, focusing lens, image mapper, collimating lens, polarizing grating, microlens array, and CCD camera.

[0015] Furthermore, the upper shell, lower shell, and light-shielding baffle are all made of opaque plastic, and the integrated base plate is made of PVC material;

[0016] The holes on the integrated base plate that mate with the bolts installed on the camera bracket are elongated holes.

[0017] Furthermore, a linear polarizer is provided at the right end of the microscope objective, and the linear polarizer is screwed to the right end of the microscope objective. A bandpass filter with a filtering wavelength range of 400-700 nm is provided between the microscope objective and the lens. Compared with the prior art, this utility model has the following beneficial effects:

[0018] 1. This utility model embeds a mapping imaging spectrometer system and an FPGA development board into the device structure, forming a highly integrated remote sensing detection device. The high degree of integration avoids the fragmented state of the device caused by the simple connection of the traditional mapping imaging spectrometer system and FPGA, and can be used as a front-end device for detection.

[0019] 2. This utility model adopts a unique structural design, which has integrity and high integration. As a detection device, it is easy to carry and use, thus improving the ease of use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the disassembly structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the lower shell structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the integrated base plate in this utility model;

[0024] Figure 5 This is a top view of the integrated base plate in this utility model;

[0025] Figure 6 This is a schematic diagram of the bottom structure of the integrated base plate in this utility model;

[0026] Figure 7 This is a schematic diagram of the camera bracket in this utility model;

[0027] Figure 8 This is a schematic diagram of the disassembly structure of the camera bracket in this utility model;

[0028] Figure 9 This is a schematic diagram of the light path in this utility model.

[0029] In the diagram: 1. Upper housing; 2. Lower housing; 3. Lens; 4. Interface panel; 41. Power interface; 42. USB interface; 43. Ethernet interface; 44. HDMI interface; 5. Integrated base plate; 6. Fixing support; 7. Light shield; 8. Microscope objective; 81. Microscope objective holder; 9. Focusing lens; 91. Focusing lens holder; 10. Image mapper; 101. Image mapper holder; 11. Collimating lens; 111. Collimating lens holder; 12. CCD camera; 13. Camera holder; 131. Upper plate; 132. Long screw; 133. Lower plate; 14. Wiring slot; 15. FPGA development board; 16. Polarizing grating; 17. Microlens array; 18. Bandpass filter; 19. Linear polarizer. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0031] Example:

[0032] like Figures 1 to 9As shown, a portable remote sensing device includes an upper housing 1 and a lower housing 2. The lower housing 2 is bolted to the lower side of the upper housing 1, completely enclosing the device and preventing interference from external light on the light-collecting components. An integrated base plate 5 is located inside the lower housing 2, and an interface panel 4 is located on the front surface of the lower housing 2. An FPGA development board 15 is mounted on the bottom of the integrated base plate 5 with screws. A lens 3 is sealed and mounted on the left side of the upper housing 1, positioned on the outside of the upper housing 1, enabling effective light collection while preventing external light from affecting the system inside the housing. A microscope objective 8 is mounted on the lower left side of the integrated base plate 5 via a microscope objective bracket 81 and bolts. The microscope objective 8 is used for preliminary focusing and amplification of the light collected by the lens 3, possessing high magnification and numerical aperture, enhancing the light-gathering ability, amplifying weak signals, and providing stronger light support for subsequent precise detection. A focusing lens 9 is mounted on the right side of the microscope objective 8 via a focusing lens bracket 91 and bolts. The focusing lens 9 is used to further focus the light, converging it into a smaller area to form parallel light. An image mapper 10 is mounted on the right side of the focusing lens 9 via an image mapper bracket 101 and bolts. The image mapper 10 is used to change the light transmission path, enabling different imaging modes and functional expansion. A collimating lens 11 is mounted on the upper left side of the image mapper 10 via a collimating lens bracket 111 and bolts. The collimating lens 11 is used to collimate the light rays after the direction conversion by the image mapper 10, ensuring the light propagates in a parallel state, thereby improving image clarity and resolution and reducing image blurring caused by light divergence. A CCD camera 12 is mounted on the upper left side of the collimating lens 11 via a camera bracket 13 and bolts. The CCD camera 12 is responsible for converting light signals into electrical signals, ultimately forming a remote sensing image that can be observed and used. A microlens array 17, composed of multiple tiny lenses, is located on the front side of the CCD camera 12. It can refocus the light entering the camera, precisely guiding it to each photosensitive unit of the CCD. This precise focusing effectively improves the CCD's light-sensing efficiency, enhances the detail representation of the image, and makes the image clearer and sharper. A polarization grating 16 is fixedly mounted on the front side of the microlens array 17. The polarization grating 16 is used to regulate the polarization characteristics of light, filtering light with specific polarization directions to improve image quality and information richness. This invention solves the problem that existing mapping imaging spectrometer systems typically use a desktop-mounted direct connection to FPGA to form an image processing device, resulting in a relatively fragmented device that requires carrying many components for individual assembly, leading to poor portability and inconvenience for carrying and using.

[0033] It should be noted that the image mapper 10 adopts 24 different tilt angle specifications, and the microlens array 17 contains 24 microlenses.

[0034] In this embodiment, the image mapper 10 is an inclined structure with an angle of 45° to the X-axis. The axes of the lens 3, the microscope objective 8, and the focusing lens 9 are coaxial. The axes of the image mapper 10, the collimating lens 11, the microlens array 17, and the CCD camera 12 are coaxial. The axis of the focusing lens 9 intersects the axis of the image mapper 10, and the angle between the two axes is 45°.

[0035] In this embodiment, a fixed support column 6 with threaded holes is fixed at each of the four corners inside the lower housing 2. The four corners of the integrated base plate 5 are connected to the fixed support column 6 by screws to achieve a stable installation of the integrated base plate 5.

[0036] The connection between the upper housing 1 and the lower housing 2 is sealed by a rubber sealing gasket. The rubber sealing gasket can seal the connection between the upper housing 1 and the lower housing 2, ensuring that the inside of the device is isolated from the external environment and preventing dust, moisture and other substances from entering.

[0037] In this embodiment, a light-shielding baffle 7 is fixed on the integrated base plate 5. The upper end face of the light-shielding baffle 7 is in contact with the top wall of the upper housing 1. The light-shielding baffle 7 is located in the area between the microscope objective lens 8 and the camera bracket 13, as well as between the focusing lens 9 and the collimating lens 11.

[0038] In this embodiment, the interface panel 4 is provided with two sets of power interfaces 41, two sets of USB interfaces 42, an Ethernet interface 43 and an HDMI interface 44 from left to right. One set of power interfaces 41 is electrically connected to the CCD camera 12, and the other set of power interfaces 41 is electrically connected to the FPGA development board 15. The two sets of USB interfaces 42 and the HDMI interface 44 are all electrically connected to the FPGA development board 15. The Ethernet interface 43 is connected to the FPGA development board 15 via a network cable.

[0039] It should be noted that the FPGA development board 15 is used as the back-end circuit of the CCD camera 12 to receive and process the image signals generated by the CCD camera 12.

[0040] In this embodiment, a long strip-shaped wiring channel 14 is provided at the upper left corner of the integrated base plate 5 to facilitate the arrangement and organization of internal wiring.

[0041] In this embodiment, the camera bracket 13 is composed of an upper plate 131, a long screw 132 and a lower plate 133. The upper plate 131 and the lower plate 133 are spaced apart and connected by a number of long screws 132 with nuts. The CCD camera 12 and the microlens array 17 are clamped and installed between the upper plate 131 and the lower plate 133.

[0042] In this embodiment, the light transmission path sequence on this device is: lens 3, microscope objective 8, focusing lens 9, image mapper 10, collimating lens 11, polarizing grating 16, microlens array 17, and CCD camera 12.

[0043] In this embodiment, the upper housing 1, the lower housing 2, and the light-shielding baffle 7 are all made of opaque plastic to prevent external light from interfering with the internal optical system, and the integrated base plate 5 is made of PVC material.

[0044] In this embodiment, the holes on the integrated base plate 5 that mate with the bolts installed on the camera bracket 13 are elongated holes. The elongated holes provide greater flexibility for the installation of the camera bracket 13, making it easier to adjust the installation position of the camera bracket 13 during the installation process, and thus adjust the installation positions of the CCD camera 12 and the microlens array 17 on it.

[0045] In this embodiment, a linear polarizer 19 is provided at the right end of the microscope objective 8. The linear polarizer 19 is screwed to the right end of the microscope objective 8. The linear polarizer 19 can polarize light, filter out unpolarized light, and improve the polarization purity of the light, which is beneficial for subsequent optical processing and analysis. A bandpass filter 18 is provided between the microscope objective 8 and the lens 3. Its filtering wavelength range is 400-700nm. The bandpass filter 18 can filter out light outside the 400-700nm wavelength range, reduce stray light interference, and improve the clarity and contrast of the image. The linear polarizer 19, the bandpass filter 18 and the microscope objective 8 are coaxial.

[0046] Furthermore, the bandpass filter 18 is fitted onto the left end of the microscope objective 8, so that the bandpass filter 18 can completely cover the left end of the microscope objective 8, ensuring the filtering effect.

[0047] In addition, the bandpass filter 18 can be fixed to the integrated base plate 5 by an optical support rod, and it is attached to the left end of the microscope objective 8.

[0048] It should be noted that the polarization grating 16 covers the light-transmitting area of ​​the microlens array 17, so that all light entering the microlens array 17 can be polarized by the polarization grating 16, which can reduce light deflection and thus improve the image quality.

[0049] The working principle of this portable remote sensing device:

[0050] After an object is illuminated, the reflected light enters lens 3 and then enters the microscope objective 8 in the form of a conical beam. The light exiting the microscope objective 8 illuminates the focusing lens 9 in the form of parallel light. The light then converges through the focusing lens 9 to the image mapper 10. Since the image mapper 10 has 24 different angles of tilt, the light is reflected at 24 different angles after passing through the image mapper 10 and then hits the collimating lens 11. The light is then converged into parallel light in the collimating lens 11 and enters the polarization grating 16 to produce diffraction. The diffracted light then propagates to the microlens array 17, which contains 24 microlenses corresponding to 24 different angles of reflection. The microlens array 17 converges the light, and finally, a corresponding image is generated on the CCD camera 12. The CCD camera 12 then transmits the generated image signal to the FPGA development board 15 for analysis and processing.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A portable remote sensing detection device, characterized in that: The assembly includes an upper housing (1) and a lower housing (2). The lower housing (2) is bolted to the lower side of the upper housing (1). An integrated base plate (5) is provided inside the lower housing (2). An interface panel (4) is provided on the front surface of the lower housing (2). An FPGA development board (15) is mounted on the bottom of the integrated base plate (5) with screws. A lens (3) is sealed on the left end face of the upper housing (1). A microscope objective (8) is mounted on the lower left side of the integrated base plate (5) with a microscope objective bracket (81) and bolts. A focusing lens is used on the right side of the microscope objective (8). A focusing lens (9) is mounted on a bracket (91) with bolts. An image mapper (10) is mounted on the right side of the focusing lens (9) with bolts via an image mapper bracket (101). A collimating lens (11) is mounted on the upper left side of the image mapper (10) with bolts via a collimating lens bracket (111). A CCD camera (12) is mounted on the upper left side of the collimating lens (11) with bolts via a camera bracket (13). A microlens array (17) is provided on the front side of the CCD camera (12). A polarizing grating (16) is fixed on the front side of the microlens array (17).

2. The portable remote sensing detection device according to claim 1, characterized in that: The image mapper (10) is a tilted structure with an angle of 45° to the X-axis. The axes of the lens (3), the microscope objective (8), and the focusing lens (9) are coaxial. The axes of the image mapper (10), the collimating lens (11), the microlens array (17), and the CCD camera (12) are coaxial. The axis of the focusing lens (9) intersects the axis of the image mapper (10), and the angle between the two axes is 45°.

3. The portable remote sensing detection device according to claim 1, characterized in that: The lower housing (2) is fixed with threaded support columns (6) at the four corners inside. The four corners of the integrated base plate (5) are connected to the fixed support columns (6) by screws. The connection between the upper housing (1) and the lower housing (2) is sealed by a rubber sealing gasket.

4. The portable remote sensing detection device according to claim 1, characterized in that: A light-shielding baffle (7) is fixed on the integrated base plate (5). The upper end face of the light-shielding baffle (7) is in contact with the top wall of the upper shell (1). The light-shielding baffle (7) is located in the area between the microscope objective (8) and the camera bracket (13), as well as between the focusing lens (9) and the collimating lens (11).

5. The portable remote sensing detection device according to claim 1, characterized in that: The interface panel (4) is provided with two sets of power interfaces (41), two sets of USB interfaces (42), an Ethernet interface (43) and an HDMI interface (44) from left to right. One set of power interfaces (41) is electrically connected to the CCD camera (12), and the other set of power interfaces (41) is electrically connected to the FPGA development board (15). The two sets of USB interfaces (42) and the HDMI interface (44) are all electrically connected to the FPGA development board (15). The Ethernet interface (43) is connected to the FPGA development board (15) via a network cable.

6. The portable remote sensing detection device according to claim 5, characterized in that: A long strip-shaped cable routing groove (14) is provided at the upper left corner of the integrated base plate (5).

7. The portable remote sensing detection device according to claim 1, characterized in that: The camera bracket (13) consists of an upper plate (131), a long screw (132) and a lower plate (133). The upper plate (131) and the lower plate (133) are spaced apart and connected by a number of long screws (132) with nuts. The CCD camera (12) and the microlens array (17) are clamped and installed between the upper plate (131) and the lower plate (133).

8. The portable remote sensing detection device according to claim 1, characterized in that: The light transmission path sequence on this device is as follows: lens (3), microscope objective (8), focusing lens (9), image mapper (10), collimating lens (11), polarization grating (16), microlens array (17), CCD camera (12).

9. The portable remote sensing detection device according to claim 4, characterized in that: The upper shell (1), lower shell (2) and light shield (7) are all made of opaque plastic, and the integrated base plate (5) is made of PVC material; The holes on the integrated base plate (5) that mate with the bolts installed on the camera bracket (13) are elongated holes.

10. The portable remote sensing detection device according to claim 1, characterized in that: The microscope objective (8) is provided with a linear polarizer (19) at the right end, and the linear polarizer (19) is screwed to the right end of the microscope objective (8). A bandpass filter (18) is provided between the microscope objective (8) and the lens (3), and its filtering wavelength range is 400-700nm.

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