Spherical optical fiber panoramic image sensor in special environment and use method thereof

Abstract

The invention belongs to the technical field of optical fiber sensors, and provides a spherical optical fiber panoramic image sensor in a special environment and a use method thereof.The technical scheme is that the spherical optical fiber panoramic image sensor comprises a base and a spherical outer frame composed of a plurality of arc-shaped outer frames, and each arc-shaped outer frame is provided with an objective lens assembly groove and a beam splitter groove from outside to inside; objective lenses are embedded in the objective lens assembly grooves, beam splitting plates are embedded in the beam splitting plate grooves, through holes used for containing optical fiber bundles are formed in the beam splitting plates from outside to inside, and the through holes correspond to the objective lenses in a one-to-one mode. An image processing device and an imaging eyepiece are arranged on the base corresponding to each arc-shaped outer frame, the end part of an optical fiber bundle connected with the imaging eyepiece is welded into a large optical fiber bundle, and acquired image information is transmitted to the image processing device through the imaging eyepiece by the large optical fiber bundle. An expensive wide-angle camera or a plurality of cameras do not need to be used, and panoramic image sensing is achieved through optical fibers.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical fiber sensors, and in particular relates to a spherical optical fiber panoramic image sensor under special conditions and a use method thereof. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] With the advent of the information age, people's image-taking devices are becoming more and more intelligent, and the rapid development of information technology is constantly giving rise to people's needs. People are increasingly pursuing a wider-angle visual experience. Through wider-angle image information, people can reproduce real scenes and build a three-dimensional model, allowing users to look around horizontally, look down, and look up in a virtual environment, simulating the scene of a person standing and looking around.

[0004] In engineering, when people conduct detection or 3D modeling of the interior of buildings, tunnels, industrial environments, etc., they need to take different photos from different angles, which is inefficient. Panoramic images can provide reliable data support for 3D modeling, which is efficient and has unique advantages. In industry, people need to monitor the industrial environment to ensure the safety of factory equipment. Panoramic images can detect all directions of the surrounding environment at the same time, with a wide detection range and high efficiency.

[0005] Charge coupled device (CCD) is a useful device widely used in industrial detection and monitoring, with many attractive features such as small size, controllable exposure time, simple operation, etc. However, CCD imaging sensors are vulnerable when working in special environments such as oil mist, dust or high temperature. In this case, many imaging problems such as distortion, aberration and blur will occur during the detection process. Since the imaging sensor uses a precision optical lens, in order to ensure the imaging quality, the lens surface cannot be wiped frequently, so the CCD imaging sensor cannot work normally in special environments such as oil mist, dust or high temperature. Summary of the invention

[0006] In order to solve at least one technical problem existing in the above-mentioned background technology, the first aspect of the present invention provides a spherical fiber optic panoramic image sensor for industrial environments, which does not require the use of expensive wide-angle cameras or multiple cameras, and uses optical fibers to achieve panoramic image sensing, thereby solving the problem that the camera cannot work normally in oily and dusty environments, and realizes panoramic image sensing in industrial and on-site oily and dusty environments through optical fibers.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] A spherical optical fiber panoramic image sensor for special environments comprises a base (2) and a spherical outer frame (1) composed of a plurality of arc-shaped outer frames, each arc-shaped outer frame being provided with an objective lens assembly groove (6) and a beam splitter groove (7) from the outside to the inside, an objective lens (12) being embedded in the objective lens assembly groove (6), and a beam splitter groove (13) being embedded in the beam splitter groove (7), the beam splitter (13) being provided with through holes (14) for placing optical fiber bundles from the outside to the inside, and the through holes (14) and the objective lenses (12) being in one-to-one correspondence;

[0009] An image processing device (17) and an imaging eyepiece (16) are provided on a base corresponding to each arc-shaped outer frame. The ends of an optical fiber bundle (18) connected to the imaging eyepiece (16) are fused into a large optical fiber bundle (15). The acquired image information is transmitted to the image processing device (17) through the imaging eyepiece (16) via the large optical fiber bundle (15).

[0010] As an implementation mode, a protective glass groove (5) is provided at the outermost side of the arc-shaped outer frame, a protective glass (10) is embedded in the protective glass groove (5), and the surface of the protective glass (10) is coated with a dustproof and hydrophobic composite transparent material using the lotus leaf principle.

[0011] As an embodiment, the objective lens assembly groove (6) comprises a lens plate groove, a lens plate (11) is embedded in the lens plate groove, and an objective lens (12) is arranged on the lens plate (11).

[0012] As an implementation mode, the lens plate (11) and the beam splitter plate (13) are both symmetrical curved surface structures.

[0013] As an implementation mode, light sources are respectively arranged on the surface of the arc-shaped outer frame (1) and on the base; a bracket LED lamp (3) and a bracket infrared lamp (4) are arranged on the surface of the arc-shaped outer frame (1); and a base LED lamp (8) and a base infrared lamp (9) are arranged on the base.

[0014] As an embodiment, the base (2) is provided with a fixing hole (19) for placing a fan, and the fan is placed through the fixing hole (19) to blow away the surrounding smoke.

[0015] As an implementation mode, the through holes (14) and the objective lens (12) are arranged in a hexagonal structure, and the through holes (14) and the through holes (14) are arranged in a regular hexagon.

[0016] As an implementation mode, the optical fiber bundle (18) is composed of a plurality of optical fibers forming an image unit, the two ends of the optical fibers are neatly arranged according to the same rule, the optical fibers at the input end and the output end are distributed in a one-to-one correspondence, and each optical fiber in the optical fiber bundle is analogous to a pixel point.

[0017] As an embodiment, the base is provided with a detachable tire (20), a driving device (21) and a remote control device (22), wherein the remote control device (22) is used to receive remote control instructions, provide forward power to the base through the driving device (21), and reach a designated location through the detachable tire (20).

[0018] In order to solve the above problems, the second aspect of the present invention provides a method for using a spherical fiber optic panoramic image sensor in a special environment, which does not require the use of expensive wide-angle cameras or multiple cameras, and uses optical fiber to achieve panoramic image sensing, thereby solving the problem that the camera cannot work normally in oily and dusty environments. Panoramic image sensing in industrial and on-site oily and dusty environments is achieved through optical fiber.

[0019] In order to achieve the above object, the present invention adopts the following technical solution:

[0020] A method for using a spherical optical fiber panoramic image sensor under a special environment, using the spherical optical fiber panoramic image sensor under a special environment described in the first aspect, comprises the following steps:

[0021] Step 1: The light source is irradiated onto the object in the environment to be measured. The light is reflected and scattered by the surface of the object. The light reflected from the surface of the object is focused onto the optical fiber bundle (18) on the beam splitter (13) through the objective lens (12), and the image information of the surrounding object is obtained, thus completing the front-end data acquisition.

[0022] Step 2: After step 1, the image information in multiple directions is transmitted through the optical fiber bundle (18), and each pixel point is transmitted by an optical fiber alone, and is transmitted to the end of the large optical fiber bundle (15) and then transmitted to the image processing device (17) through the imaging eyepiece (16);

[0023] Step 3: The image processing device (17) converts the optical signal transmitted by the front end into an electrical signal and stores it;

[0024] Step 4: The electrical signal is transmitted to the PC terminal, which registers and fuses the images from all directions to obtain a panoramic image.

[0025] The beneficial effects of the present invention are:

[0026] 1. The present invention realizes panoramic image sensing by using an optical fiber structure, without the need to use an expensive wide-angle camera or multiple cameras. At the same time, since no camera is needed, the problem that the camera cannot work normally in an oil mist and dust environment is solved.

[0027] 2. The base of the present invention is provided with a detachable tire connected to the drive shaft. Under the action of the drive device, the problem of optical fiber sensing that cannot transmit images over long distances is overcome, and mobile panoramic image sensing is realized.

[0028] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0030] Figure 1 is an appearance structure diagram of a spherical optical fiber panoramic image sensor provided by an embodiment of the present invention;

[0031] Figure 2 It is a front view of a spherical outer frame base of a spherical optical fiber panoramic image sensor provided by an embodiment of the present invention;

[0032] Figure 3 It is a schematic diagram of the protective glass, objective lens assembly, and beam splitter of the spherical optical fiber panoramic image sensor provided by an embodiment of the present invention;

[0033] Figure 4 is an internal cross-sectional view of a spherical optical fiber panoramic image sensor provided by an embodiment of the present invention;

[0034] Figure 5 is a distribution diagram of an image processing device of a spherical optical fiber panoramic image sensor provided by an embodiment of the present invention;

[0035] Figure 6 The figure is a schematic diagram of the base moving structure of the spherical optical fiber panoramic image sensor provided by an embodiment of the present invention.

[0036] Among them, 1. spherical outer frame; 2. base; 3. bracket LED light; 4. bracket infrared light; 5. protective glass slot; 6. objective lens assembly slot; 7. beam splitter slot; 8. base LED light; 9. base infrared light; 10. protective glass; 11. lens plate; 12. objective lens; 13. beam splitter; 14. through hole; 15. large optical fiber bundle; 16. imaging eyepiece; 17. image processing device; 18. optical fiber bundle; 19. fixing hole; 20. detachable tire; 21. driving device; 22. remote control device. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0040] In the present invention, the directions or positional relationships indicated by terms such as "outside", "inside", "upper", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0041] In the present invention, terms such as "connection" should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meaning of the above terms in the present invention can be determined according to specific circumstances, and it cannot be understood as a limitation of the present invention.

[0042] CCD imaging sensors are vulnerable to attack when working in special environments such as oil mist, dust or high temperature. In this case, many imaging problems will occur during the detection process, such as distortion, aberration and blur. The present invention does not need to use expensive wide-angle cameras or multiple cameras, and uses optical fibers to achieve panoramic image sensing, solving the problem that cameras cannot work properly in oily and dusty environments. Panoramic image sensing in industrial and on-site oily and dusty environments is achieved through optical fibers.

[0043] Embodiment 1

[0044] like Figure 1-Figure 3 The present embodiment provides a spherical optical fiber panoramic image sensor for a special environment, as shown, comprising a base 2 and a spherical outer frame 1 composed of a plurality of arc-shaped outer frames, each arc-shaped outer frame being provided with a protective glass groove 5, an objective lens assembly groove 6 and a beam splitter groove 7 in sequence from the outside to the inside, a protective glass 10 being embedded in the protective glass groove 5, an objective lens assembly being embedded in the objective lens assembly groove 6, and a beam splitter 13 being embedded in the beam splitter groove 7;

[0045] like Figure 3As shown, the protective glass 10 is arranged at the outermost side of the sensor and embedded in the protective glass groove 5. The protective glass is made of transparent glass, and its surface is coated with dust-proof and hydrophobic composite transparent material using the lotus leaf principle. Because the preset working environment of the sensor is an industrial dust and oil environment, the working environment is relatively harsh. This layer of protective glass is used to protect the internal image sensing system on the one hand, and prevent surface dust and other factors from affecting the imaging quality on the other hand, providing a good imaging environment for sensor image transmission.

[0046] The objective lens assembly groove 6 includes a lens plate 11 and an objective lens 12. The objective lens assembly includes a lens plate 11 and an objective lens 12. The objective lens 12 is located on the lens plate 11. The lens plate 11 is placed inside the protective glass and embedded in the lens plate groove. The purpose is to focus the light reflected by the object to be measured onto the end face of the optical fiber bundle 18 to increase the imaging quality of the image.

[0047] The beam splitter 13 is placed inside the objective lens assembly and embedded in the beam splitter groove 7. A through hole 14 for placing an optical fiber is provided on the beam splitter 13. The number of through holes 14 is the same as the number of objective lenses 12 on the lens plate, and there is a one-to-one correspondence in the spatial positions. The light emitted by the light source shines on the object to be measured, and after being reflected by the object to be measured, it is focused on the optical fiber on the through hole 14 through the objective lens 12 on the lens plate 11 to form an image.

[0048] The lens plate 11 and the beam splitter plate 13 are both symmetrical curved surface structures, which are similar to the curved surface of a sphere. Compared with a flat surface, this structure increases the imaging area and expands the image field of view.

[0049] In order to make the imaging more regular, the beam splitter 13 and the lens plate 11 are placed in the structure, and the overall arrangement of the optical fiber through hole and the objective lens is a hexagonal structure; in order to increase the area ratio of the optical fiber on the beam splitter and increase the imaging area, a regular hexagonal arrangement is adopted between the through holes.

[0050] like Figure 2 As shown, the surface of the spherical outer frame and the base are provided with a bracket LED lamp 3, a base LED lamp 8, a bracket infrared lamp 4, and a base infrared lamp 9. In order to increase the irradiation area, light sources are provided on the surface of the spherical outer frame and the base. In some closed environments, the environment may be dark, so it is necessary for the LED lamp to emit light to illuminate the object to be measured so that the object to be measured reflects light to the optical fiber. At the same time, when the LED lamp cannot be used in the dark, the infrared lamp can be used to emit light to achieve night image transmission.

[0051] like Figure 4As shown, the base 2 is provided with an image processing device 17 and an imaging eyepiece 16, which are fixed inside the sensor. The ends of the optical fiber bundles 18 of each part connected to the imaging eyepiece 16 are fused into a large optical fiber bundle 15, and the image information transmitted from the front end is transmitted to the image processing device 17 through the imaging eyepiece 16.

[0052] Each direction corresponds to an image processing device. If there are three directions, such as Figure 5 As shown, the image processing device 17 includes three components, such as Figure 5 As shown, they are arranged on the base 2, and each image processing device is used to receive images transmitted in their respective corresponding directions. The optical fiber of each part is connected to the imaging eyepiece in a large optical fiber bundle, and the image information is transmitted to the image processing device 17 through the imaging eyepiece 16. By adopting the above method to realize the transmission of images, each part of the optical fiber is processed independently, which facilitates the management of the optical fiber. In order to ensure high quality of the image effect, the image processing device usually uses CCD, and the image processing device converts the image information transmitted from the imaging eyepiece into an electrical signal for storage or transmission.

[0053] It can be understood that in other embodiments, the acquired image data may be in three directions or more than three directions. Those skilled in the art may set it themselves according to specific working conditions, which will not be described in detail here.

[0054] like Figure 6 As shown, the base is provided with a fixing hole 19 for placing a fan, which can be used to place a fan. When the industrial environment is a smoky environment, the fan is used to blow away the surrounding smog to provide a good working environment for the sensor.

[0055] The optical fiber is actually an optical fiber bundle, which is composed of a large number of optical fibers to form an image unit. The typical number is 0.3 to 100,000 strands. The diameter of each optical fiber is about 10μm. At both ends of the optical fiber, all the optical fibers are neatly arranged according to the same rule. Each optical fiber in the optical fiber bundle is like a pixel (containing the brightness and color information of the image). When the optical fibers are arranged regularly, that is, the optical fibers at the input and output ends are in a one-to-one distribution relationship, the image at the input end is sampled by the optical fiber and transmitted to the output end. The imaging resolution is related to the diameter of the optical fiber. The smaller the optical fiber drop, the higher the resolution.

[0056] like Figure 6 As shown, the base is provided with a detachable tire 20, which can be removed when sensing images of a small range of environments. The present invention can install the tire, the driving device 21 is used to provide power to the base, the remote control device 22 receives the remote control command issued by the terminal, and operates the driving device 21 to remotely control the base. The present invention uses the above method to remotely control the sensor to a designated location, and can realize panoramic image sensing in a large range of environments such as tunnels without the need for people to arrive at the site.

[0057] The specific principle of image acquisition is:

[0058] The light source is irradiated onto the object in the environment to be measured. The light is reflected and scattered by the surface of the object. The light reflected from the surface of the object is focused onto the optical fiber bundle 18 on the beam splitter 13 by the objective lens 12, and the image information of the surrounding objects is obtained, thus completing the front-end data acquisition.

[0059] The image information acquired in multiple directions is transmitted through the optical fiber bundle 18, and each pixel is transmitted by an optical fiber alone, and is transmitted to the end of the large optical fiber bundle 15 and then transmitted to the image processing device 17 through the imaging eyepiece 16;

[0060] The image processing device 17 converts the optical signal transmitted from the front end into an electrical signal and stores it;

[0061] The electrical signal is transmitted to the PC terminal, which registers and fuses the images from all directions to obtain a panoramic image.

[0062] The present invention does not require the use of expensive wide-angle cameras or multiple cameras, and uses optical fibers to achieve panoramic image sensing, thereby solving the problem that cameras cannot work normally in oily and dusty environments. Panoramic image sensing in industrial and on-site oily and dusty environments is achieved through optical fibers.

[0063] Specifically, when obtaining a panoramic image of an industrial dust or oily environment, it specifically refers to connecting the base to a connecting device and hanging it on the top of the industrial environment. The above-mentioned image sensing method is used to realize panoramic image sensing of the industrial internal environment. It can also be used for panoramic image sensing of the internal environment of buildings and tunnels. The implementation method is similar to the above-mentioned industrial environment, and provides reliable data support for monitoring industrial oily and dust environments and establishing a 3D model of the internal environment of buildings.

[0064] Since the sensor of the present invention is based on an optical fiber design and has a small size, the sensor can be remotely controlled in the above manner to go to a small space that some people cannot reach and observe, detect the small space, and flexibly realize panoramic image sensing in the small space.

[0065] Embodiment 2

[0066] This embodiment provides a method for using a spherical optical fiber panoramic image sensor under a special environment. Based on the spherical optical fiber panoramic image sensor under a special environment described in Embodiment 1, the method includes the following steps:

[0067] S101: After the LED lamp and the infrared lamp emit light, they shine on the measured environment object. The light is reflected and scattered by the surface of the object. The light reflected from the surface of the object is focused on the optical fiber bundle 18 on the beam splitter 13 by the objective lens 12, and the image information of the surrounding objects is obtained, that is, the front-end data collection is completed;

[0068] S102: After the front end in multiple directions collects the image in the above-mentioned manner, the image is transmitted through the optical fiber. Each pixel is transmitted by an optical fiber alone. The image information collected by the front end is transmitted to the image processing device 17 through the imaging eyepiece 16 at the end of the large optical fiber bundle 15.

[0069] S103: The image processing device 17 converts the optical signal transmitted from the front end into an electrical signal and stores it;

[0070] S104: The image information is transmitted to the PC terminal via SD card storage or wireless transmission. The PC terminal registers and fuses the images from all directions to achieve panoramic image sensing.

[0071] In general, after the front end collects image information of objects in the surrounding environment, the optical fiber transmits the image information to the end of the large optical fiber bundle, and the image information collected by the front end is transmitted to the image processing device through the imaging eyepiece. Multiple image processing devices respectively obtain image information from various directions, and finally transmit it to the PC terminal for image processing through wireless transmission. The PC terminal aligns and fuses the images from various directions to finally obtain a panoramic image.

[0072] Through the above scheme, the present invention does not need to use expensive wide-angle cameras or multiple cameras, and uses optical fibers to achieve panoramic image sensing. It solves the problem that cameras cannot work normally in oily and dusty environments, and uses optical fibers to achieve panoramic image sensing in industrial and on-site oily and dusty environments.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spherical optical fiber panoramic image sensor for special environments, characterized in that: The invention comprises a base (2) and a spherical outer frame (1) composed of a plurality of arc-shaped outer frames, each arc-shaped outer frame being provided with an objective lens assembly groove (6) and a beam splitter groove (7) from the outside to the inside, an objective lens (12) being embedded in the objective lens assembly groove (6), and a beam splitter groove (13) being embedded in the beam splitter groove (7), and the beam splitter groove (13) being provided with through holes (14) for placing optical fiber bundles from the outside to the inside, and the through holes (14) and the objective lenses (12) being in one-to-one correspondence; An image processing device (17) and an imaging eyepiece (16) are provided on a base corresponding to each arc-shaped outer frame. The ends of an optical fiber bundle (18) connected to the imaging eyepiece (16) are fused into a large optical fiber bundle (15). The acquired image information is transmitted to the image processing device (17) through the imaging eyepiece (16) via the large optical fiber bundle (15).

2. The spherical optical fiber panoramic image sensor for special environments as claimed in claim 1, characterized in that: A protective glass groove (5) is arranged at the outermost side of the arc-shaped outer frame, a protective glass (10) is embedded in the protective glass groove (5), and a dustproof and hydrophobic composite transparent material is coated on the surface of the protective glass (10) using the lotus leaf principle.

3. The spherical optical fiber panoramic image sensor for special environments as claimed in claim 1, characterized in that: The objective lens assembly groove (6) comprises a lens plate groove, a lens plate (11) is embedded in the lens plate groove, and an objective lens (12) is arranged on the lens plate (11).

4. The spherical optical fiber panoramic image sensor for special environments as claimed in claim 3, characterized in that: The lens plate (11) and the beam splitter plate (13) are both symmetrical curved surface structures.

5. The spherical optical fiber panoramic image sensor for special environments as claimed in claim 1, characterized in that: Light sources are respectively arranged on the surface of the arc-shaped outer frame (1) and on the base; a bracket LED lamp (3) and a bracket infrared lamp (4) are arranged on the surface of the arc-shaped outer frame (1); and a base LED lamp (8) and a base infrared lamp (9) are arranged on the base.

6. The spherical optical fiber panoramic image sensor for special environments as claimed in claim 1, characterized in that: The base (2) is provided with a fixing hole (19) for placing a fan, and the fan is placed through the fixing hole (19) to blow away surrounding smoke.

7. The spherical optical fiber panoramic image sensor for special environments as claimed in claim 1, characterized in that: The through holes (14) and the objective lens (12) are arranged in a hexagonal structure, and the through holes (14) are arranged in a regular hexagonal shape.

8. The spherical optical fiber panoramic image sensor for special environments as claimed in claim 1, characterized in that: The optical fiber bundle (18) is composed of a plurality of optical fibers forming an image unit. The two ends of the optical fibers are neatly arranged according to the same rule. The optical fibers at the input end and the output end are distributed in a one-to-one correspondence. Each optical fiber in the optical fiber bundle is analogous to a pixel point.

9. The spherical optical fiber panoramic image sensor for special environments as claimed in claim 1, characterized in that: The base is provided with a detachable tire (20), a driving device (21) and a remote control device (22); the remote control device (22) is used to receive remote control instructions, provide forward power to the base through the driving device (21), and reach a designated location through the detachable tire (20).

10. A method for using a spherical optical fiber panoramic image sensor under special environment, using the spherical optical fiber panoramic image sensor under special environment according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: The light source is irradiated onto the object in the environment to be measured. The light is reflected and scattered by the surface of the object. The light reflected from the surface of the object is focused onto the optical fiber bundle (18) on the beam splitter (13) through the objective lens (12), and the image information of the surrounding object is obtained, thus completing the front-end data acquisition. Step 2: After step 1, the image information in multiple directions is transmitted through the optical fiber bundle (18), and each pixel point is transmitted by an optical fiber alone, and is transmitted to the end of the large optical fiber bundle (15) and then transmitted to the image processing device (17) through the imaging eyepiece (16); Step 3: The image processing device (17) converts the optical signal transmitted by the front end into an electrical signal and stores it; Step 4: The electrical signal is transmitted to the PC terminal, which registers and fuses the images from all directions to obtain a panoramic image.

Images