Visualization system based on multispectral optical fiber

Abstract

The invention discloses a visualization system based on a multispectral optical fiber. The visualization system comprises an optical fiber bundle system, an imaging system and a sensing system, the optical fiber bundle system comprises a visible light image transmission bundle, an infrared image transmission bundle and an ultraviolet image transmission bundle; the visible light image transmission bundle comprises a visible light beam and a white light guide beam; the imaging system comprises an input end and an imaging end; the front end of the optical fiber bundle system is connected with the input end of the imaging system, and the rear end of the optical fiber bundle system is connected with the imaging end of the imaging system. The imaging system is arranged, can replace the function of an electronic camera to achieve the watching effect, and is suitable for some environments which are sensitive to electromagnetic interference and cannot use electronic equipment; through multi-band setting, integrated observation from ultraviolet light to visible light to infrared light can be realized, and safer and more visual images can be brought to technicians. Meanwhile, the ultraviolet image transmitting bundle is arranged, so that electric power accidents are reduced; and the epoxy resin layer is arranged between the optical fiber bundle system and the flange connecting part, so that good air tightness is ensured.

Description

Technical Field

[0001] The invention relates to a visualization system, in particular to a visualization system based on multi-spectral optical fibers that respectively image optical fiber bundles through flange fixing. Background Art

[0002] In real life, we often encounter some special environments and places that are very sensitive to electromagnetic interference, and even completely prohibit the use of electronic equipment. In order to ensure the safety and stability of the environment, the impact of electromagnetic interference on equipment and personnel must be avoided. In addition, there are some power application environments, such as power systems, communication base stations, etc., which are also highly sensitive to electromagnetic interference, because the normal operation of these devices is directly related to the stability and development of the entire society. As an important power equipment, high-voltage switchgear and GIS equipment are widely used in various power supply systems. They play a vital role in the power system and are responsible for receiving, distributing and controlling the flow of electrical energy.

[0003] In these special environments, traditional electronic observation and monitoring devices often fail to function. These devices usually rely on electromagnetic waves for data transmission and reception, and the electronic equipment itself will generate certain electromagnetic radiation during operation. In an environment with high electromagnetic interference, the propagation of electromagnetic waves will be seriously affected, resulting in data loss or transmission errors, which will have adverse effects on surrounding equipment and personnel, and even cause safety accidents. Therefore, in these special environments, strict electromagnetic shielding measures must be taken to ensure the safety of equipment and personnel.

[0004] For example, in the prior art, when conducting exploration inside high-voltage switch cabinets and GIS equipment, if electronic equipment cannot be used, the only way is to turn off the power switch first, and then open the cabinet door to observe the inside of the cabinet; although turning off the power switch can reduce the occurrence of power accidents, performing this operation every time before exploring the high-voltage switch cabinets and GIS equipment will cause a lot of inconvenience to electricity users and technicians. Summary of the invention

[0005] In order to solve the shortcomings of the above technologies, the present invention provides a visualization system based on multi-spectrum optical fiber.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a visualization system based on multi-spectral optical fiber, including an optical fiber bundle system, an imaging system and a sensing system; the optical fiber bundle system includes a visible light imaging bundle, an infrared imaging bundle and an ultraviolet imaging bundle, and the visible light imaging bundle includes a visible light beam and a white light guide beam; an epoxy resin layer is provided on the outside of the optical fiber bundle system for connecting a flange;

[0007] The imaging system includes an input end and an imaging end; the front end of the optical fiber bundle system is connected to the input end of the imaging system, the end of the optical fiber bundle system is connected to the sensing system to convert the optical signal into an electrical signal, and the rear end of the sensing system is connected to the imaging end of the imaging system for imaging.

[0008] Furthermore, the optical fiber bundle system is in the shape of a cable; the outside of the optical fiber of the visible light imaging bundle, the outside of the optical fiber of the infrared imaging bundle and the outside of the optical fiber of the ultraviolet imaging bundle are all sheathed with ceramic sleeves.

[0009] Furthermore, the input end of the imaging system includes a visible light objective lens, an infrared objective lens and an ultraviolet objective lens; the front end of the visible light imaging beam is connected to the visible light objective lens, the front end of the infrared imaging beam is connected to the infrared objective lens, and the front end of the ultraviolet imaging beam is connected to the ultraviolet objective lens.

[0010] Further, a plurality of visible light image transmission beams are evenly arranged into a plurality of visible light image transmission beam layers, a plurality of infrared image transmission beams are evenly arranged into a plurality of infrared image transmission beam layers, and a plurality of ultraviolet image transmission beams are evenly arranged into a plurality of ultraviolet image transmission beam layers.

[0011] Furthermore, the sensing system includes a visible light sensor, an infrared sensor and an ultraviolet sensor; the rear end of the visible light imaging bundle is equipped with a visible light sensor, the rear end of the infrared imaging bundle is equipped with an infrared sensor, and the rear end of the ultraviolet imaging bundle is equipped with an ultraviolet sensor.

[0012] Furthermore, the imaging end of the imaging system includes a visible light imaging component, an infrared camera and an ultraviolet imager; the rear end of the visible light sensor is connected to the visible light imaging component, the rear end of the infrared sensor is connected to the infrared camera, and the rear end of the ultraviolet sensor is connected to the ultraviolet imager; the visible light imaging component includes a visible light source and a CCD camera, the rear end of the visible light sensor is connected to the CCD camera, and one side of the CCD camera is fixedly connected to the visible light source.

[0013] Furthermore, a filter is provided between the optical fiber bundle system and the sensor system for filtering other light.

[0014] Furthermore, the filter includes several visible light filter areas, several infrared filter areas and several visible light ultraviolet filter areas; the visible light filter area is covered with a visible light image transmission beam layer, the infrared filter area is covered with an infrared image transmission beam layer, and the visible light ultraviolet filter area is covered with an ultraviolet image transmission beam layer.

[0015] Furthermore, the core diameter of a single wire of the visible light imaging bundle is less than or equal to 10 μm; the core diameter of a single wire of the infrared imaging bundle is less than or equal to 10 μm; and the core diameter of a single wire of the ultraviolet imaging bundle is less than or equal to 10 μm.

[0016] Furthermore, the diameter of the visible light imaging beam, the diameter of the infrared imaging beam and the diameter of the ultraviolet imaging beam are all less than 10 mm. The present invention discloses a visualization system based on multi-spectral optical fiber, which has the following beneficial effects:

[0017] 1. By setting up an imaging system, the function of the camera can be replaced to achieve the viewing effect, replacing the detection function of the electronic camera. It is more suitable for some environments that are sensitive to electromagnetic interference and cannot use electronic equipment, such as exploration in high-voltage switch cabinets and GIS equipment;

[0018] Second, through the multi-band setting of visible light imaging beam, infrared imaging beam and ultraviolet imaging beam, it can realize integrated observation from ultraviolet to visible light to infrared light, which can provide technicians with safer and more intuitive images;

[0019] 3. At the same time, an ultraviolet imaging beam is set up. There will be ultraviolet light, that is, arc, inside the power equipment. Through ultraviolet light observation, it can be observed whether there is a certain intensity of discharge, which reduces the occurrence of power accidents to a certain extent. At the same time, it is convenient for power users and technicians to conduct exploration and other operations;

[0020] 4. Since there is sulfur hexafluoride gas in the GIS equipment, a good airtightness can be ensured by setting an epoxy resin layer between the optical fiber bundle system and the flange connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a cross-sectional view of the optical fiber bundle system in the present invention.

[0023] In the figure: 1. visible light imaging beam; 2. infrared imaging beam; 3. ultraviolet imaging beam; 4. filter; 6. visible light objective lens; 11. visible light imaging component; 21. infrared objective lens; 22. infrared camera; 31. ultraviolet objective lens; 32. ultraviolet imager; 51. visible light sensor; 52. infrared sensor; 53. ultraviolet sensor; 5. epoxy resin layer; 7. flange. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] A visualization system based on multi-spectral optical fiber, including an optical fiber bundle system, an imaging system and a sensing system; the optical fiber bundle system includes a plurality of visible light imaging bundles 1, a plurality of infrared imaging bundles 2 and a plurality of ultraviolet imaging bundles 3, the visible light imaging bundles 3 include a visible light beam and a white light guide beam; an epoxy resin layer 5 is provided on the outside of the optical fiber bundle system for connecting with a flange 7;

[0026] The imaging system includes an input end and an imaging end; the front end of the optical fiber bundle system is connected to the input end of the imaging system, the end of the optical fiber bundle system is connected to the sensing system to convert the optical signal into an electrical signal, and the rear end of the sensing system is connected to the imaging end of the imaging system for imaging.

[0027] Specifically, the optical fiber bundle system is in the shape of a cable; the outside of the optical fiber of the visible light imaging bundle, the outside of the optical fiber of the infrared imaging bundle and the outside of the optical fiber of the ultraviolet imaging bundle are all sheathed with ceramic sleeves.

[0028] The present invention is used to explore the inside of high-voltage switch cabinets and GIS equipment. Since there is sulfur hexafluoride gas in the GIS equipment, in the GIS operation project, the visualization system will decompose the sulfur hexafluoride gas under the influence of factors such as local discharge or high temperature. The decomposition product will become a corrosive electrolyte after encountering moisture in the air, and will also decompose highly toxic decomposition products. The flange is used to block the connection between the internal environment of the GIS equipment and the outside world. The flange is also a bridge for the visualization system to connect the inside of the GIS equipment and the outside world. Therefore, an epoxy resin layer is set between the optical fiber bundle system in the visualization system and the flange connection to ensure good air tightness. Epoxy resin is a thermosetting plastic with excellent adhesion, chemical resistance and electrical insulation. It is widely used in the fields of coatings, adhesives, composite materials, electronic packaging, etc. Epoxy resin forms a three-dimensional network structure by reacting with a curing agent, thereby obtaining good mechanical properties and durability. Common epoxy resin types include bisphenol A epoxy resin, alicyclic epoxy resin and phenolic epoxy resin.

[0029] The input end of the imaging system includes a visible light objective lens 6, an infrared objective lens 21 and an ultraviolet objective lens 31; the front end of the visible light imaging beam 1 is connected to the visible light objective lens 6, the front end of the infrared imaging beam 2 is connected to the infrared objective lens 21, and the front end of the ultraviolet imaging beam 3 is connected to the ultraviolet objective lens 31.

[0030] A plurality of visible light image transmission beams 1 are evenly arranged into a plurality of visible light image transmission beam layers, a plurality of infrared image transmission beams 2 are evenly arranged into a plurality of infrared image transmission beam layers, and a plurality of ultraviolet image transmission beams 3 are evenly arranged into a plurality of ultraviolet image transmission beam layers.

[0031] The sensing system includes a visible light sensor 51, an infrared sensor 52 and an ultraviolet sensor 53; the visible light sensor 51 is installed at the rear end of the visible light imaging bundle 1, the infrared sensor 52 is installed at the rear end of the infrared imaging bundle 2, and the ultraviolet sensor 53 is installed at the rear end of the ultraviolet imaging bundle 3.

[0032] The imaging end of the imaging system includes a visible light imaging component 11, an infrared camera 22 and an ultraviolet imager 32; the rear end of the visible light sensor 51 is connected to the visible light imaging component 11, the rear end of the infrared sensor 52 is connected to the infrared camera 22, and the rear end of the ultraviolet sensor 53 is connected to the ultraviolet imager 32; the visible light imaging component 11 includes a visible light source and a CCD camera, the rear end of the visible light sensor 51 is connected to the CCD camera, and one side of the CCD camera is fixedly connected to the visible light source.

[0033] A filter 4 is provided between the optical fiber bundle system and the sensor system for filtering other light.

[0034] The filter 4 includes several visible light filter areas, several infrared filter areas and several visible light ultraviolet filter areas; the visible light filter area is covered with a visible light image transmission beam layer, the infrared filter area is covered with an infrared image transmission beam layer, and the visible light ultraviolet filter area is covered with an ultraviolet image transmission beam layer.

[0035] The core diameter of the single wire of the visible light image transmission bundle 1 is less than or equal to 10μm; the core diameter of the single wire of the infrared image transmission bundle 2 is less than or equal to 10μm; the core diameter of the single wire of the ultraviolet image transmission bundle 3 is less than or equal to 10μm. The diameter of the visible light image transmission bundle 1, the diameter of the infrared image transmission bundle 2 and the diameter of the ultraviolet image transmission bundle 3 are all less than 10㎜. It can replace the function of the camera to achieve the viewing effect, replace the detection function of the electronic camera, and is more suitable for some environments that are sensitive to electromagnetic interference and cannot use electronic equipment.

[0036] Implementation example Figure 1 As shown in the structural schematic diagram of a visualization system based on multi-spectral optical fiber, a visualization system based on multi-spectral optical fiber includes an optical fiber bundle system, an imaging system and a sensing system; the optical fiber bundle system includes a plurality of visible light imaging bundles 1, a plurality of infrared imaging bundles 2 and a plurality of ultraviolet imaging bundles 3;

[0037] like Figure 2 As shown in the cross-sectional diagram of a fiber bundle system in a visualization system based on multi-spectral optical fiber, the image transmission bundle 1 in the present invention is an image transmission bundle that combines white light beam and visible light into one; the single-filament core diameter of the infrared image transmission bundle 2 is set to be less than or equal to 10μm, and the single-filament core diameter of the ultraviolet image transmission bundle 3 is set to be less than or equal to 10μm, which can provide excellent resolution and more accurate imaging effects; when the diameter of the infrared image transmission bundle 2 and the diameter of the ultraviolet image transmission bundle 3 are both less than 10mm and the transmittance is greater than 70%, most of the light can be transmitted to the target object, greatly reducing the loss of light.

[0038] A number of visible light image transmission beams 1 are evenly and regularly arranged to form a number of visible light image transmission beam layers. Taking a middle visible light image transmission beam as the center of the circle and extending outward, the visible light image transmission beam layer is circular when observed from the front end, so as to effectively transmit white light; a number of infrared image transmission beams 2 are evenly and regularly arranged to form a number of infrared image transmission beam layers. Taking a middle infrared image transmission beam as the center of the circle and extending outward, the infrared light image transmission beam layer is circular when observed from the front end; a number of ultraviolet image transmission beams 3 are evenly and regularly arranged to form a number of ultraviolet image transmission beam layers. Taking a middle ultraviolet image transmission beam as the center of the circle and extending outward, the ultraviolet light image transmission beam layer is circular when observed from the front end.

[0039] The imaging system includes an input end and an imaging end; the input end includes an infrared objective lens 21 and an ultraviolet objective lens 31;

[0040] The infrared objective lens 21 is an important component in the infrared optical system. Its main function is to collect and focus infrared light and convert it into images recognizable by humans. The infrared objective lens 21 is usually composed of composite optical glass lenses, which can accurately focus light on the chip, enabling the device to effectively observe and image the infrared medium and long wave bands.

[0041] The infrared objective lens 21 has the characteristics of wide field of view, strong adaptability, high resolution and the ability to provide a variety of focal lengths. The wide field of view is due to the fact that the infrared objective lens 21 is usually designed with a condenser, which can better gather light onto the detector and provide a larger observation range; the strong adaptability enables the infrared objective lens 21 to adapt to different environmental conditions and different observation requirements, such as searching and tracking infrared targets; the high resolution is due to the fact that the infrared objective lens 21 adopts an aspherical lens or a composite lens design with a high numerical aperture, which can improve the resolution and brightness of the infrared image; the ability to provide a variety of focal lengths means that the infrared objective lens 21 can provide a variety of lenses with different magnifications, supporting different focusing options from closer distances to longer distances to meet different observation requirements.

[0042] The UV objective lens 31 can work in the UV band, so that the UV objective lens 31 can transmit light in the UV spectrum region; the UV objective lens usually needs to use materials that can transmit ultraviolet light; because the reflectivity of ultraviolet light is usually higher than that of visible light, the UV objective lens usually requires a special anti-reflection coating to reduce reflection and increase transmittance; the UV objective lens 31 provides more flexibility and functionality in scientific research and industrial applications.

[0043] The front end of the visible light imaging beam 1 is connected to a visible light objective lens 6 , the front end of the infrared imaging beam 2 is connected to an infrared objective lens 21 , and the front end of the ultraviolet imaging beam 3 is connected to an ultraviolet objective lens 31 .

[0044] The rear end of the optical fiber bundle system is connected to a sensing system for connecting to the imaging end of the imaging system to realize filtering imaging; the sensing system includes a visible light sensor 51, an infrared sensor 52 and an ultraviolet sensor 53; the sensing system converts the collected optical signals into electrical signals.

[0045] The visible light sensor 51 is an electronic component that is sensitive to visible light radiation and can convert visible light radiation energy into a value that is somewhat related to it; the visible light sensor 51 has the characteristics of small dark current, low illumination response, high sensitivity, and the current changes linearly with the increase of light intensity;

[0046] The visible light sensor 51 has a built-in dual sensitive source, automatically attenuates near-infrared, and has a spectral response close to the function curve of the human eye. It also has a built-in micro-signal CMOC amplifier, a high-precision voltage source and a correction circuit. It has a large output current, a wide operating range, and good temperature stability. It can convert visible light into a measurable electrical signal, and realizes accurate detection and control of visible light characteristics such as light intensity and color.

[0047] The infrared sensor 52 is a sensor that can sense infrared radiation from a target and use the physical properties of infrared radiation to perform measurements; it can receive infrared radiation from a target and convert the radiation into electrical signals, thereby realizing detection, positioning and measurement of the target;

[0048] The working principle of the infrared sensor 52 is based on the infrared radiation characteristics of objects. All objects will emit a certain degree of heat to the surrounding space, including radiation within the infrared spectrum. According to different detection mechanisms, the infrared sensor 52 is divided into thermal detectors and photon detectors. The thermal detector is based on the thermal effect and indirectly measures the radiation intensity by measuring the temperature change of the material after absorbing infrared radiation. The photon detector is based on the photoelectric effect and is made of a photosensitive element. After the photosensitive element absorbs infrared radiation, it generates photoelectrons, thereby forming an electrical signal.

[0049] The ultraviolet sensor 53 is an electronic device that can detect electromagnetic radiation wavelengths ranging from ultraviolet light to visible light; the principle of the ultraviolet sensor 53 is based on the photoinduced charging effect of semiconductor materials. When the material absorbs photons, electron-hole pairs are generated, resulting in internal current changes, and then generating voltage or current output signals; by adjusting the composition and doping degree of the semiconductor material, the absorption of photons in different wavelength ranges can be selectively promoted.

[0050] A visible light sensor 51 is installed at the rear end of the visible light imaging bundle 1 ; an infrared sensor 52 is installed at the rear end of the infrared imaging bundle 2 ; and an ultraviolet sensor 53 is installed at the rear end of the ultraviolet imaging bundle 3 .

[0051] A filter 4 is arranged between the optical fiber bundle system and the sensor system for filtering other light; the filter comprises a plurality of visible light filter areas, a plurality of infrared filter areas and a plurality of visible light ultraviolet filter areas.

[0052] The visible light filter area in the filter can block or filter out specific wavelengths and light in the visible spectrum, blocking the blue and purple light in the visible spectrum; the visible light wavelength is 380 nanometers to 760 nanometers.

[0053] The infrared filter area in the filter is used to shield ultraviolet light and visible light and can only transmit infrared light; the wavelength of infrared light is between visible light and microwaves, and the wavelength range is 760 nanometers to 1 millimeter.

[0054] The visible light ultraviolet filter area in the filter is used to filter out certain wavelengths of ultraviolet light while allowing visible light to pass through; the wavelength of ultraviolet light is between visible light and X-rays, and the wavelength range is 200 nanometers to 400 nanometers; depending on the material's absorption characteristics of ultraviolet light, when light passes through the visible light ultraviolet filter area in the filter, specific wavelengths of ultraviolet light will be absorbed, while other wavelengths of light will be allowed to pass through.

[0055] The rear end of the sensing system is connected to the imaging end of the imaging system; the imaging end of the imaging system includes a visible light source and a CCD camera, an infrared camera 22 and an ultraviolet imager 32;

[0056] Visible light source refers to a light source that can emit light visible to the human eye; the wavelength range of visible light source is between 380 nanometers and 780 nanometers, and the visible light source emits a continuous spectrum, including various colors of light from red to purple.

[0057] The infrared camera 22 is a camera that uses a charge-coupled device as an image sensor. It can convert light into electric charges and record image information through the movement and storage of electric charges. The infrared camera 22 generally has the advantages of high precision, high resolution, high sensitivity and high stability, and is used for image acquisition. The infrared camera 22 can generate high-quality images, low noise, high sensitivity and fast reading functions. Since it is sensitive to infrared rays, it can quickly capture the emitted infrared rays for imaging.

[0058] The UV Imager 32 is a high-tech device designed specifically to capture images in the UV spectrum. The main feature is the use of special materials and filters on its lens that can effectively receive and convert UV light, allowing the camera to produce high-quality images in the UV spectrum.

[0059] The working principle of the UV imager 32 is to use special materials and filters to absorb and reflect UV light, then convert the UV light into visible light through the internal optical system, and finally convert the visible light into electrical signals through the image sensor to form an image. The working principle of this camera enables it to perform high-quality imaging within the UV spectrum, and the image clarity and color authenticity are very high.

[0060] The rear end of the visible light sensor 51 is connected to the visible light imaging assembly 11 to achieve final imaging, the rear end of the infrared sensor 52 is connected to the infrared camera 22 to achieve final imaging, and the rear end of the ultraviolet sensor 53 is connected to the ultraviolet imager 32 to achieve final imaging. When entering an environment where electronic equipment cannot be used or an environment that is sensitive to electromagnetic interference, the function of the camera can be replaced to achieve the effect of detection and viewing.

[0061] Working principle: Since the visible light imaging beam 1 is a device specially used to guide white light imaging, it focuses and transmits the light emitted by the white light source so that the light can accurately illuminate the area that needs to be illuminated and form an image. The infrared imaging beam 2 monitors infrared light, receives and processes infrared light signals, and converts them into visible light images or digital signals for easy observation and analysis.

[0062] The UV imaging beam 3 is an ultraviolet light imaging beam, which is a tool for observing electric arcs. An electric arc is a strong discharge phenomenon, usually generated by an electric current passing through a gas between two electrodes. The UV imaging beam 3 can capture the ultraviolet light signal emitted by the arc and convert it into a visual image.

[0063] The present invention is provided with optical fibers composed of several visible light image transmission bundles 1, several infrared image transmission bundles 2 and several ultraviolet image transmission bundles 3, and filters, visible light sensors 51, visible light sources and CCD cameras 11 are sequentially installed at the rear end of the visible light image transmission bundle 1; wherein the visible light image transmission bundle 1 filters the light corresponding to the visible light filter area in the filter. An infrared objective lens 21 is connected to the front end of the infrared image transmission bundle 2, and a filter is provided at the rear end of the infrared image transmission bundle 2, and an infrared sensor 52 and an infrared camera 22 are sequentially installed at the rear end of the filter, wherein the infrared image transmission bundle 2 filters the light corresponding to the infrared filter area in the filter.

[0064] The front end of the ultraviolet imaging beam 3 is connected to an ultraviolet objective lens 31, and the rear end of the ultraviolet imaging beam 3 is provided with a filter, and an ultraviolet sensor 53 and an ultraviolet imager 32 are sequentially installed at the rear end of the filter, wherein the ultraviolet imaging beam 3 filters the light corresponding to the ultraviolet filter area in the filter.

[0065] The ultraviolet image beam 3 adopts a lens and an imaging system that meet the requirements of ultraviolet light, so that its working wavelength range is 200 nanometers to 400 nanometers; there are two other channels, namely medium- and long-wave infrared and visible light channels; medium- and long-wave infrared is a type of infrared light with a longer wavelength, and its wavelength range is usually between 7 microns and 14 microns, with the characteristics of high transmittance, low scattering and not easily absorbed by the atmosphere;

[0066] The visible light channel refers to illuminating the target object with a white light source and collecting the reflected or scattered light signals through the optical system to obtain the information of the target object. The light signal is received and sensed by the sensor system, converted into an electrical signal, and then imaged at the imaging end of the imaging system.

[0067] Usage process: The light is first focused by the infrared objective lens 21 and the ultraviolet objective lens 31, the unfocused light directly enters the visible light imaging beam 1, the light focused by the infrared objective lens 21 enters the infrared imaging beam 2, and the light focused by the ultraviolet objective lens 31 enters the ultraviolet imaging beam 3;

[0068] The light entering the visible light image transmission bundle 1 is further filtered by the visible filter area in the filter. The visible light image transmission bundle 1 is used to guide visible light and is an optical fiber used to see visible light.

[0069] The light entering the infrared image beam 2 is further filtered by the infrared filter area in the filter. According to the specific wavelength selection characteristics, only infrared light is allowed to pass through for monitoring infrared light, while other wavelengths of light are absorbed or reflected; the light entering the ultraviolet image beam 3 is further filtered and processed by the visible light ultraviolet filter area in the filter;

[0070] The ultraviolet imaging bundle 3 is used to observe the arc, and uses an imager, optical fiber bundle and imaging detector that meet the ultraviolet requirements, with an operating wavelength range of 200nm to 400nm to ensure that only the required visible light and ultraviolet light can be filtered through the filter to the ultraviolet sensor;

[0071] The filtered visible light beam passes through the visible light sensor 51 to convert the visible light signal into an electrical signal of visible light, and finally the electrical signal of visible light is converted into an image mapped onto the visible light imaging component 11;

[0072] The infrared sensor 52 converts the infrared optical signal into an electrical signal after filtering the infrared imaging beam 2, and finally converts the infrared electrical signal into an image mapped onto the infrared camera 22;

[0073] The filtered visible ultraviolet light passes through the ultraviolet sensor 53 to convert the ultraviolet light signal into an ultraviolet light electrical signal, and finally converts the ultraviolet electrical signal into an image mapped onto the ultraviolet imager 32 .

[0074] When working in the visible light band, the white light beam will first start the white light source illumination, which can produce a wide spectrum, including most of the colors seen by the human eye. The illumination area through the optical fiber is 120°. Within this area, all objects in the cabin will be illuminated;

[0075] In this environment, the visible light source and CCD camera in the visible light imaging assembly 11 capture images in the visible light range, and the images will clearly show various details in the cabin. If an arc discharge occurs, the ultraviolet imager 32 will immediately start capturing ultraviolet images of the arc, which will show the location, shape and intensity of the arc and provide important information about the arc.

[0076] The present invention makes observation more comprehensive through the multi-band setting of the visible light imaging beam 1, the infrared imaging beam 2 and the ultraviolet imaging beam 3. The multi-band setting can cover a wider wavelength range; the multi-band setting can improve the safety of observation. In some cases, the observed target may generate harmful radiation. The multi-band setting enables technicians to observe through remote control equipment, avoiding the risk of direct contact.

[0077] The multi-band setting can provide more intuitive observation results. When the observation results are displayed on the imaging system, technicians can see the images of different bands more intuitively and find abnormal situations or problems more easily. It realizes integrated observation from ultraviolet to visible light to infrared light, which brings technicians safer and more intuitive images and improves the efficiency and accuracy of observation.

[0078] Since the working principle of the present invention is to receive and process light signals from the environment, then convert these light signals into electrical signals, and finally convert these electrical signals into images;

[0079] Since the visualization system based on multi-spectral optical fiber of the present invention does not rely on electronic equipment, it can work normally in an environment where electronic equipment cannot be used, and can replace the detection function of electronic cameras to achieve the same detection function as that of electronic cameras, and will not be affected by electromagnetic interference; for example, in high-voltage switch cabinets and GIS equipment, due to the existence of strong electromagnetic interference, ordinary electronic cameras cannot work normally and cannot achieve the expected observation effect. By using the present invention, the interior of high-voltage switch cabinets and GIS equipment can be explored without affecting the operation of the equipment, thereby ensuring the safe operation of the equipment.

[0080] In the use of power equipment, due to the passage of current, a certain amount of heat and arc discharge will be generated, which will affect the normal operation of the power equipment to a certain extent, and may even cause power accidents. The discharge situation inside the power equipment can be observed by setting the ultraviolet imaging beam 3;

[0081] By conducting ultraviolet light detection inside electrical equipment, technicians can effectively detect whether there is discharge inside the equipment.

[0082] The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also belong to the protection scope of the present invention.

Claims

1. A visualization system based on multi-spectral optical fiber, characterized in that: The optical fiber bundle system comprises an optical fiber bundle system, an imaging system and a sensing system; the optical fiber bundle system comprises a visible light imaging bundle (1), an infrared imaging bundle (2) and an ultraviolet imaging bundle (3), and the visible light imaging bundle (1) comprises a visible light beam and a white light guide beam; an epoxy resin layer (5) is arranged on the outside of the optical fiber bundle system for connecting with a flange (7); The imaging system includes an input end and an imaging end; the front end of the optical fiber bundle system is connected to the input end of the imaging system, the end of the optical fiber bundle system is connected to the sensing system to convert the optical signal into an electrical signal, and the rear end of the sensing system is connected to the imaging end of the imaging system for imaging.

2. The multi-spectral optical fiber-based visualization system according to claim 1, characterized in that: The optical fiber bundle system is in the shape of a cable; the outside of the optical fiber of the visible light imaging bundle (1), the outside of the optical fiber of the infrared imaging bundle (2) and the outside of the optical fiber of the ultraviolet imaging bundle (3) are all sheathed with ceramic sleeves.

3. The multi-spectral optical fiber-based visualization system according to claim 1, characterized in that: The input end of the imaging system comprises a visible light objective lens (6), an infrared objective lens (21) and an ultraviolet objective lens (31); the front end of the visible light imaging beam (1) is connected to the visible light objective lens (6), the front end of the infrared imaging beam (2) is connected to the infrared objective lens (21), and the front end of the ultraviolet imaging beam (3) is connected to the ultraviolet objective lens (31).

4. The multi-spectral optical fiber based visualization system according to claim 1, characterized in that: A plurality of the visible light image transmission beams (1) are evenly arranged into a plurality of visible light image transmission beam layers, a plurality of the infrared image transmission beams (2) are evenly arranged into a plurality of infrared image transmission beam layers, and a plurality of the ultraviolet image transmission beams (3) are evenly arranged into a plurality of ultraviolet image transmission beam layers.

5. The multi-spectral optical fiber based visualization system according to claim 1, characterized in that: The sensing system comprises a visible light sensor (51), an infrared sensor (52) and an ultraviolet sensor (53); the visible light sensor (51) is installed at the rear end of the visible light image transmission bundle (1), the infrared sensor (52) is installed at the rear end of the infrared image transmission bundle (2), and the ultraviolet sensor (53) is installed at the rear end of the ultraviolet image transmission bundle (3).

6. The multi-spectral optical fiber based visualization system according to claim 5, characterized in that: The imaging end of the imaging system comprises a visible light imaging component (11), an infrared camera (22) and an ultraviolet imager (32); the rear end of the visible light sensor (51) is connected to the visible light imaging component (11), the rear end of the infrared sensor (52) is connected to the infrared camera (22), and the rear end of the ultraviolet sensor (53) is connected to the ultraviolet imager (32); the visible light imaging component (11) comprises a visible light source and a CCD camera, the rear end of the visible light sensor (51) is connected to the CCD camera, and one side of the CCD camera is fixedly connected to the visible light source.

7. The multi-spectral optical fiber based visualization system according to claim 4, characterized in that: A filter (4) is arranged between the optical fiber bundle system and the sensor system to filter other light.

8. The multi-spectral optical fiber based visualization system according to claim 7, characterized in that: The filter (4) comprises a plurality of visible light filter areas, a plurality of infrared filter areas and a plurality of visible light ultraviolet filter areas; the visible light filter area is covered with a visible light image transmission beam layer, the infrared filter area is covered with an infrared image transmission beam layer, and the visible light ultraviolet filter area is covered with an ultraviolet image transmission beam layer.

9. The multi-spectral optical fiber based visualization system according to claim 1, characterized in that: The core diameter of a single wire of the visible light imaging bundle (1) is less than or equal to 10 μm; the core diameter of a single wire of the infrared imaging bundle (2) is less than or equal to 10 μm; and the core diameter of a single wire of the ultraviolet imaging bundle (3) is less than or equal to 10 μm.

10. The multi-spectral optical fiber based visualization system according to claim 1, characterized in that: The diameter of the visible light imaging beam (1), the diameter of the infrared imaging beam (2) and the diameter of the ultraviolet imaging beam (3) are all less than 10 mm.

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