A multi-spectrum image acquisition device convenient to adjust

Abstract

The utility model discloses a kind of multispectral image acquisition devices of being convenient for adjusting, including device shell and adjusting mechanism, the adjusting mechanism is arranged in the inside of device shell, the adjusting mechanism includes the drive motor being arranged in the inside of device shell, and the output of drive motor is provided with rotating shaft.The utility model is provided with device shell, adjusting mechanism, drive motor and limit slot, the work of drive motor can drive fixed disc rotation, can be rotated to the inside of mounting slot with fixed frame, subsequently the work of cylinder can be pushed fixed frame transverse movement, can be inserted into the inside of limit slot with fixed frame, can be conveniently fixed in the inside of mounting slot with the optical filter in the inside of fixed frame, so different categories of optical filter can be conveniently replaced, improve the practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of image acquisition device technology, specifically a multispectral image acquisition device that is easy to adjust. Background Technology

[0002] Multispectral imaging technology has attracted widespread attention since its inception. It is a novel detection technology that combines all information about the target image, including two-dimensional spatial information and spectral radiation information, representing a major breakthrough in the field of remote sensing. Multispectral imaging technology plays a significant role in agricultural and forestry classification management, military identification, environmental monitoring, and water resource monitoring. It can directly obtain the geometric image and physicochemical information of the observed target, enabling comprehensive detection and identification of target features—an advantage not possessed by other remote sensing technologies. Therefore, multispectral image acquisition devices have been widely applied.

[0003] Regarding the aforementioned technologies, the applicant believes that a multispectral image acquisition device, when operating, requires the use of protective goggles and narrowband filters of different wavelengths to capture image data in specific spectral bands, ultimately generating a multispectral composite image. However, when acquiring images in multiple spectral bands, operators must first stop the device, then manually remove the old filters, and subsequently install filters corresponding to the new spectral bands. This operation significantly consumes valuable working time, thus affecting the device's efficiency and data quality. Summary of the Invention

[0004] The purpose of this invention is to provide an easily adjustable multispectral image acquisition device to solve the problem mentioned in the background art that when acquiring images of multiple spectral bands, the operator must first stop the machine, then manually remove the old filter, and then install the filter corresponding to the new spectral band. This operation takes up a lot of effective working time, thus affecting the working efficiency and data quality of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multispectral image acquisition device that is easy to adjust, comprising a device housing and an adjustment mechanism. The adjustment mechanism is disposed inside the device housing and includes a drive motor disposed inside the device housing. The output end of the drive motor is provided with a rotating shaft, and the bottom end of the rotating shaft is provided with a fixed plate. Cylinders are evenly arranged at the bottom end of the fixed plate, and the output end of the cylinders is provided with a fixed frame. A filter is disposed inside the fixed frame. An installation groove is opened at the end of the device housing away from the drive motor, and a limit groove is opened at one end of the installation groove. A protective pad is disposed inside the limit groove.

[0006] By adopting the above technical solution, the operation of the drive motor can drive the rotating shaft to rotate, thereby causing the fixed plate to rotate and rotate the fixed frame into the mounting slot. Then, the operation of the cylinder can push the fixed frame to move laterally, allowing the fixed frame to be inserted into the limiting slot. This makes it easy to fix the filter inside the fixed frame into the mounting slot, minimizing the risk of the filter shifting during operation. This allows for convenient replacement of different types of filters, improving the practicality of the device.

[0007] Preferably, the device housing is provided with mounting bases at both ends, and the mounting bases are provided with mounting holes.

[0008] By adopting the above technical solution, the device can be easily fixed by passing the fixing bolt through the mounting hole inside the fixing seat.

[0009] Preferably, an access door is hinged to the upper part of the inner casing of the device.

[0010] By adopting the above technical solution, the filter inside the device housing can be easily replaced by opening the maintenance door.

[0011] Preferably, the device housing has uniformly spaced heat dissipation holes inside, which are located directly below the drive motor.

[0012] By adopting the above technical solution, the heat generated by the drive motor during operation can be easily dissipated, thus extending the service life of the drive motor.

[0013] Preferably, four sets of fixing seats are provided, and the fixing seats and the device housing form a welded integrated structure.

[0014] By adopting the above technical solution, the stability of the fixed base during operation can be improved.

[0015] Preferably, a protective mirror is provided at the top inside the mounting groove, and a camera lens is provided at the bottom inside the mounting groove.

[0016] By adopting the above technical solution, the camera lens captures light in a specific spectral band through a filter, converts the light signal into an electrical signal, and generates high-definition image data of the spectral band after processing by the device.

[0017] Preferably, the fixing frame is provided in six groups, and the fixing frames are symmetrically distributed about the center point inside the fixing disk.

[0018] By adopting the above technical solution, the six sets of filters can be easily fixed.

[0019] Preferably, the inner wall of the fixing frame (407) is uniformly provided with elastic pressure strips (412), the elastic pressure strips (412) are made of silicone material, and the elastic pressure strips are tightly attached to the outer wall of the filter (408), and the cross section of the elastic pressure strips (412) is arc-shaped.

[0020] Preferably, a positioning protrusion (413) is uniformly provided on the edge of the fixed disk (403), and a photoelectric sensor (414) is provided inside the device housing (1) at the position corresponding to the positioning protrusion (413). The photoelectric sensor (414) is electrically connected to the drive motor (406), and the positioning protrusion (413) is adapted to the sensing end of the photoelectric sensor (414).

[0021] Compared with the prior art, the beneficial effects of this utility model are: The device is equipped with a housing, an adjustment mechanism, a drive motor, and a limiting groove. The drive motor rotates the rotating shaft, causing the fixed plate to rotate and rotate the fixed frame into the mounting groove. Then, the cylinder pushes the fixed frame laterally, inserting it into the limiting groove. This allows the filter inside the fixed frame to be easily fixed in the mounting groove, minimizing the risk of filter misalignment during operation. This facilitates easy replacement of different types of filters, improving the device's practicality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall front view of the present invention; Figure 3 This is a front view structural diagram of the fixing plate of this utility model; Figure 4 This is a structural diagram showing the connection between the filter and the cylinder of this utility model; Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0023] The attached figures are labeled as follows: 1. Device housing; 2. Mounting base; 3. Protective mirror; 4. Adjustment mechanism; 401. Inspection door; 402. Rotating shaft; 403. Mounting plate; 404. Mounting slot; 405. Camera lens; 406. Drive motor; 407. Mounting frame; 408. Filter; 409. Cylinder; 410. Protective pad; 411. Limiting slot; 412. Elastic pressure strip; 413. Positioning protrusion; 414. Photoelectric sensor. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 5 As shown, this embodiment provides a technical solution: a multispectral image acquisition device that is easy to adjust, including a device housing 1 and an adjustment mechanism 4. The adjustment mechanism 4 is disposed inside the device housing 1 and includes a drive motor 406 disposed inside the device housing 1. The drive motor 406 operates based on the principle of electromagnetic induction. When three-phase alternating current is applied to the stator winding, a rotating magnetic field is generated in the stator core. Its rotational speed is determined by the power supply frequency and the number of pole pairs of the motor. The rotor conductor cuts magnetic lines of force in the rotating magnetic field to generate an induced current. The current interacts with the magnetic field to generate electromagnetic torque, driving the rotor to rotate. When selecting the appropriate model, it should be selected according to the actual needs. All components required in the drive motor 406 are existing technologies and will not be described in detail below.

[0026] The rotating shaft 402 is connected to the output end of the drive motor 406 by fixing bolts. The fixed plate 403 is fixedly connected to the bottom end of the rotating shaft 402. The cylinder 409 is fixedly connected to the bottom end of the fixed plate 403. The fixed frame 407 is fixedly connected to the output end of the cylinder 409. The cylinder 409 is a miniature cylinder 409 adapted to the fixing requirements of the multispectral image acquisition device. Its working principle is based on "pneumatic-driven linear motion". It integrates a cylinder barrel, piston, piston rod and high-pressure resistant nitrile rubber sealing ring. The power comes from the compressed air provided by the built-in pneumatic control system of the device. During operation, compressed air enters the cylinder barrel through the air port on one side of the cylinder 409, pushing the piston to move linearly along the inner wall of the cylinder barrel. The piston rod, which is rigidly connected to the piston, extends synchronously. The top of the piston rod directly acts on the fixed frame 407, which can push the fixed frame 407 to move stably. The sealing ring inside the cylinder can effectively prevent compressed air leakage and ensure the stability of the piston rod thrust and return pull. Its linear motion accuracy, together with the rotation positioning function of the drive motor 406, can realize the automatic switching of the filter 408. When selecting the appropriate model, the appropriate model should be selected according to the actual needs. All the components required in the cylinder 409 are existing technologies and will not be described in detail below.

[0027] The fixing frame 407 is provided in six sets, and the fixing frame 407 is symmetrically distributed about the center point inside the fixing disk 403. The filter 408 is fixedly connected inside the fixing frame 407, which can facilitate the fixing of the six sets of filter 408.

[0028] The mounting groove 404 is located inside the device housing 1 at one end away from the drive motor 406. The limiting groove 411 is located inside one end of the mounting groove 404. The protective pad 410 is adhered to the inside of the limiting groove 411. The inspection door 401 is hinged to the upper part of the device housing 1. By opening the inspection door 401, the filter 408 inside the device housing 1 can be easily replaced. The device housing 1 has evenly spaced heat dissipation holes located directly below the drive motor 406, which can easily dissipate the heat generated by the drive motor 406 during operation and extend the service life of the drive motor 406.

[0029] The protective lens 3 is fixedly connected to the upper part of the mounting slot 404, and the camera lens 405 is fixedly connected to the lower part of the mounting slot 404. When working, the camera lens 405 is mainly used to convert specific spectral bands of light filtered by the filter 408 into processable image data. Its working principle is based on the synergistic effect of "optical imaging + photoelectric conversion". The lens adopts a lens group composed of multiple optical glass elements, combined with a high-resolution CMOS image sensor, and integrates a mechanical shutter. During operation, the light from the target scene is first filtered by filter 408 before entering the lens assembly of camera lens 405. The lens assembly converges the light onto the photosensitive surface of the CMOS sensor through refraction and focusing, forming a clear optical image. The photosensitive unit on the sensor surface converts the light signal into a weak electrical signal, which is then converted into a digital signal by the built-in AD converter and transmitted to the image acquisition card of the device. The acquisition card performs preprocessing such as noise reduction and white balance correction on the digital signal, and finally generates high-definition image data of the spectral band. When selecting the appropriate model, it should be selected according to the actual needs. All the components required in camera lens 405 are existing technologies and will not be described in detail below.

[0030] The overall effect of this embodiment is as follows: The drive motor 406 is activated by a control switch, causing the rotating shaft 402 to rotate. This causes the fixed disk 403 at the top of the rotating shaft 402 to rotate synchronously, precisely rotating the filter 408 of the target spectral band into the mounting slot 404 of the camera lens 405. Once the filter 408 is in place, the micro cylinder 409 operates, pushing the fixed frame 407 laterally along the mounting slot 404 until the fixed frame 407 is fully inserted into the limiting slot 411 at one end of the mounting slot 404. This stably fixes the filter 408 within the mounting slot 404, preventing the filter 408 from shifting due to vibration during the acquisition process. If a filter 408 of a different spectral band needs to be replaced, the cylinder 409 is reversed to pull the fixed frame 407 away from the limiting groove 411, and then the drive motor 406 drives the fixed plate 403 to rotate to the next fixed frame 407 position. This allows for convenient replacement of different types of filters 408, improving the practicality of the device.

[0031] The device housing 1 is provided with fixed seats 2 evenly at both ends. The fixed seats 2 have mounting holes inside. There are four sets of fixed seats 2. The fixed seats 2 and the device housing 1 form a welded integrated structure.

[0032] The effect achieved by the entire second embodiment is that the device can be easily fixed by passing the fixing bolt through the mounting hole inside the fixing seat 2.

[0033] Furthermore, the inner wall of the fixing frame 407 is uniformly provided with elastic pressure strips 412, which are made of silicone material and are tightly attached to the outer wall of the filter 408. The cross-section of the elastic pressure strip 412 is arc-shaped.

[0034] Furthermore, positioning protrusions 413 are evenly provided on the edge of the fixed disk 403, and a photoelectric sensor 414 is provided inside the device housing 1 at the position corresponding to the positioning protrusions 413. The photoelectric sensor 414 is electrically connected to the drive motor 406, and the positioning protrusions 413 are adapted to the sensing end of the photoelectric sensor 414.

[0035] Working principle: The drive motor 406 is started by the control switch, which drives the rotating shaft 402 to rotate. This causes the fixed plate 403 at the top of the rotating shaft 402 to rotate synchronously, which can precisely rotate the filter 408 of the target spectral band into the mounting slot 404 of the camera lens 405. After the filter 408 is in place, the miniature cylinder 409 is activated. The piston rod of the cylinder 409 pushes the fixed frame 407 to move laterally along the mounting slot 404 until the fixed frame 407 is fully inserted into the limiting slot 411 at one end of the mounting slot 404. This can stably fix the filter 408 in the mounting slot 404 and prevent the filter 408 from shifting due to vibration during the acquisition process. If you need to replace the filter 408 with a different spectral band, you only need to reverse the start cylinder 409 to pull the fixed frame 407 away from the limit groove 411, and then drive the drive motor 406 to rotate the fixed plate 403 to the next fixed frame 407 position. This allows you to easily replace different types of filters 408 and improves the practicality of the device. After the filter 408 is installed inside the mounting slot 404, the camera lens 405 can be used to easily acquire multispectral images.

[0036] Example 1: Automated Filter Switching and Fixing Based on Adjustment Mechanism The core objective of this embodiment is to achieve precise switching and stable fixation of multi-spectral filters through an adjustment mechanism, while ensuring heat dissipation and ease of maintenance of the device.

[0037] Drive assembly: The device housing 1 is equipped with a drive motor 406, whose output end is connected to a rotating shaft 402 by a fixing bolt. The bottom end of the rotating shaft 402 is fixedly connected to a fixed plate 403 with six sets of fixing frames 407 (the six sets of fixing frames are symmetrical about the center point of the fixed plate).

[0038] Fixing components: Each fixing frame 407 has a fixed filter 408. A micro cylinder 409 is provided at the bottom of the fixing plate 403 corresponding to the position of the fixing frame. The output end of the cylinder is connected to the fixing frame 407. A mounting groove 404 is opened in the outer shell 1 of the device away from the drive motor. A limiting groove 411 with a protective pad 410 is provided at one end of the mounting groove.

[0039] Auxiliary structure: A maintenance door 401 is hinged to the top of the outer casing 1 of the device, and heat dissipation holes are evenly distributed directly below the internal drive motor.

[0040] Start the drive motor 406, which drives the rotating shaft 402 and the fixed disk 403 to rotate synchronously, so that the filter 408 of the target spectrum is precisely rotated to the mounting slot 404 corresponding to the camera lens 405.

[0041] After the filter is in place, the miniature cylinder 409 operates, and its piston rod pushes the fixing frame 407 to move laterally along the mounting groove 404 until the fixing frame is fully inserted into the limiting groove 411, thus completing the fixing of the filter.

[0042] When replacing the filter, reverse start cylinder 409 pulls the fixing frame away from the limit groove, and then the drive motor drives the fixing plate to rotate to the position of the next set of fixing frames, repeating the above fixing steps.

[0043] This system enables automated filter switching with high precision, eliminating human error. The cylinder and limit groove work together to securely fix the filter, preventing it from shifting due to vibration during data acquisition. Heat dissipation holes effectively dissipate heat from the drive motor, extending its lifespan; the access door facilitates future filter maintenance and replacement, enhancing the device's practicality.

[0044] Example 2: Overall installation and fixation of the device based on the fixed base The core objective of this embodiment is to achieve convenient and stable installation of the multispectral image acquisition device through a dedicated fixing structure, ensuring the stability of the device during operation. Four sets of fixing seats 2 are evenly arranged at both ends of the device shell 1. The fixing seats and the device shell adopt an integrated welded structure. Each set of fixing seats 2 has mounting holes for passing through fixing bolts. The external fixing bolts are passed through the mounting holes inside the fixing seats 2, and then the bolts are fastened to the mounting carrier (such as a bracket, workbench, etc.) to complete the overall fixing of the device.

[0045] The integrated welded structure enhances the connection strength between the mounting base and the outer shell, preventing the mounting base from falling off during installation.

[0046] Four sets of evenly distributed mounting brackets ensure balanced force distribution after installation, reducing shaking during operation. The mounting hole design is compatible with standard fixing bolts, eliminating the need for additional custom accessories, reducing installation difficulty, and improving the ease of installation.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multispectral image acquisition device that is easy to adjust, characterized in that: include: Device housing (1); adjustment mechanism (4), the adjustment mechanism (4) is located inside the device housing (1), the adjustment mechanism (4) includes a drive motor (406) located inside the device housing (1), the output end of the drive motor (406) is provided with a rotating shaft (402), the bottom end of the rotating shaft (402) is provided with a fixed plate (403), the bottom end of the fixed plate (403) is uniformly provided with cylinders (409), the output end of the cylinders (409) is provided with a fixed frame (407), the inside of the fixed frame (407) is provided with a filter (408), the end of the device housing (1) away from the drive motor (406) is provided with an installation groove (404), one end of the installation groove (404) is provided with a limit groove (411), the inside of the limit groove (411) is provided with a protective pad (410); the two ends of the device housing (1) are uniformly provided with fixed seats (2), the The mounting base (2) has an installation hole inside; an inspection door (401) is hinged to the upper part of the device housing (1); heat dissipation holes are evenly provided inside the device housing (1), and the heat dissipation holes are located directly below the drive motor (406); four sets of mounting bases (2) are provided, and the mounting bases (2) and the device housing (1) form a welded integrated structure; a protective mirror (3) is provided at the upper part of the mounting groove (404), and a camera lens (405) is provided at the lower part of the mounting groove (404); six sets of fixing frames (407) are provided, and the fixing frames (407) are symmetrically distributed about the center point inside the fixing plate (403); elastic pressure strips (412) are evenly provided on the inner wall of the fixing frame (407), the elastic pressure strips (412) are made of silicone material, and the elastic pressure strips are tightly attached to the outer wall of the filter (408), and the cross section of the elastic pressure strips (412) is arc-shaped.

2. The easily adjustable multispectral image acquisition device as described in claim 1, characterized in that: The fixed disk (403) has a uniformly arranged positioning protrusion (413) at its edge. The device housing (1) has a photoelectric sensor (414) arranged inside the housing (1) at the position corresponding to the positioning protrusion (413). The photoelectric sensor is electrically connected to the drive motor (406), and the positioning protrusion (413) is adapted to the sensing end of the photoelectric sensor (414).

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