Steel hot rolling water mist penetration temperature measurement system and method

Abstract

The invention discloses a steel hot rolling water mist penetrating temperature measurement system and method. The system comprises a water mist penetrating temperature measurement device and a deployment support device. The water mist penetrating temperature measuring device comprises a visible light guiding-tracking assembly, an optical focusing assembly, a dual-wavelength light splitting assembly, a multi-source information processing assembly and a display assembly. The temperature measurement method comprises the steps of dual-wavelength radiation temperature measurement signal and visible light camera image acquisition, strip steel temperature calculation and to-be-measured area image processing, and abnormal fluctuation temperature detection and processing. According to the invention, the optical focusing assembly and the dual-wavelength light splitting assembly are introduced, and the accurate visible light guiding assembly is added, so that the accuracy and reliability are improved, the size of the device is optimized, the operation is simple and convenient, automatic judgment of interference factors can be realized, data rejection is carried out, and the reliability and accuracy of temperature measurement are improved.

Description

Technical Field

[0001] The invention relates to the field of steel production, and in particular to a water mist penetration temperature measurement system and method for steel hot rolling. Background Art

[0002] During the hot rolling production process of steel, the slab temperature of steel is extremely demanding, and the temperature of the plate in each stage such as rough rolling, finishing rolling, and laminar cooling needs to be accurately sensed in real time. However, during the process of steel rolling, dephosphorization in the laminar cooling area, and cooling, uneven water film and steam layer will form on the surface of the strip. These water films and steam absorb and scatter infrared radiation, which seriously interferes with the temperature sensing instruments that rely on infrared radiation for temperature measurement, resulting in a decrease in temperature measurement accuracy. At the same time, infrared thermometers placed near the rolling conveyor rollers are also easily affected by factors such as smoke, plasma flash, and water mist on the surface of the temperature measuring hole, which further leads to "inaccurate measurement" of the steel surface temperature.

[0003] In view of the above problems, patent CN201810062303 proposes a dual-wavelength radiation temperature measurement device and method, which includes an optical lens, a semi-transparent and semi-reflective spectrometer, and a data acquisition analysis and error evaluation system. The temperature measurement method includes relaxation approximation, monochromatic probability approximation and averaging to correct and obtain the surface temperature measurement value. Patent CN200510011751 proposes a dual-wavelength radio and television thermometer based on blackbody radiation, which uses a quartz glass window that reaches thermal equilibrium with the molten steel as a light source to achieve immersion temperature measurement of the molten steel, and realizes the transmission, collection and conversion of two optical signals through lenses, two-way spectroscopic filters, narrow-band filters and photoelectric conversion devices. The above and related patents all involve the optical path design and temperature measurement principles and methods of temperature measuring instruments to overcome adverse disturbances such as water mist in the steel production process and ensure the temperature measurement accuracy of infrared temperature measuring instruments.

[0004] Although the above-mentioned existing technologies have solved the temperature measurement problem in high-temperature environments to a certain extent, and have preliminarily dealt with interference factors such as water vapor and oxide layers, there are still some shortcomings, especially in industrial field environments, where factors such as water film, smoke and steam can significantly interfere with the accuracy and stability of the measurement. For example, in the temperature monitoring of hot rolling production lines, the infrared signal absorption caused by water film can lead to temperature underestimation by up to 50°C, smoke causes signal fluctuations to intensify to more than ±30°C, and the steam layer causes the temperature measurement deviation to reach 20 to 30°C, and even data loss. These interferences have a serious impact on process control and optimization, indicating that the reliability of existing temperature measurement technologies in complex industrial environments still needs to be improved. Existing technologies mainly rely on complex algorithms for interference correction, but in practical applications it is difficult to accurately determine the specific causes of abnormally fluctuating temperature measurement data, and it is difficult to fully meet the high-precision and high-real-time requirements of modern industrial production for temperature measurement.

[0005] Therefore, a new technical solution is needed to achieve high-precision, real-time and reliable temperature measurement. Summary of the invention

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that it is difficult to achieve high precision and high real-time performance in temperature measurement.

[0007] To achieve the above-mentioned purpose, the present invention provides a water mist penetration temperature measurement system for hot rolling of steel, comprising a water mist penetration temperature measurement device and a deployment bracket device;

[0008] The water mist penetration temperature measuring device comprises a visible light guiding-tracking component, an optical focusing component, a dual-wavelength spectroscopic component, a multi-source information processing component and a display component.

[0009] The present invention introduces an optical focusing component and a dual-wavelength spectroscopic component, and uses a hyperbolic mirror refraction component to quickly converge the light beam, and uses a dual-wavelength spectroscopic component to split the original light beam into two. Then, a dual-wavelength radiation measurement method is adopted, and interference such as water mist and smoke is filtered out through a ratio algorithm, thereby improving the measurement accuracy. This innovation can effectively solve the sensitivity of the single-wavelength temperature measurement system to environmental changes and ensure accurate temperature measurement in complex environments. At the same time, the light beam focusing path is shortened, and the size of the device is reduced, making the entire device more compact and portable. This design not only improves the applicability of the device, but also optimizes the space occupancy of the device and improves the maneuverability of the system.

[0010] The present invention adds a precise visible light guide component and combines it with a camera function to achieve real-time tracking and monitoring of the target. In addition, a high-pressure water jet cutting device is used to form a uniform water film on the hot-rolled surface, thereby providing better conditions for laser irradiation and camera. This design can not only help operators accurately determine the location of the measurement point, but also determine in real time whether there is any abnormality in the target during the measurement process, thereby significantly improving the reliability and accuracy of the measurement.

[0011] In a preferred embodiment of the present invention, the visible light guiding-tracking component includes a camera and a visible light source; the optical focusing component includes a front curved mirror and a rear curved mirror.

[0012] The invention adds a visible light guiding-tracking component so that the operator can easily confirm the measurement target and judge in real time whether the temperature of the measurement point is abnormal, thereby improving the convenience and reliability of the system. The use of a hyperbolic mirror refraction component reduces the size of the device, making it more portable and better adapted to narrow working spaces.

[0013] In another preferred embodiment of the present invention, the dual-wavelength spectroscopic component includes a semi-transparent and semi-reflective spectroscope, a first monochromatic filter and a first radiation detector designed on the reflected light path, and a second monochromatic filter and a second radiation detector on the transmitted light path.

[0014] The dual-wavelength measurement technology in the present invention can effectively offset the interference of environmental changes (such as water mist, smoke, etc.), and improve the stability and accuracy of temperature measurement.

[0015] In another preferred embodiment of the present invention, the multi-source information processing component connects the electrical signal and the image signal to the processor via a transmission line, and transmits the processed image information and temperature information to the onboard display of the display component.

[0016] In another preferred embodiment of the present invention, the deployment bracket device includes a high-pressure water jet cutting device and a device deployment bracket;

[0017] The high-pressure water jet cutting device is used to precisely cut and evenly thin the steel using the cooling water sprayed from the nozzle directly above it;

[0018] The device deployment bracket is used to stably install and accurately position the water mist penetration temperature measuring device and the high-pressure water jet cutting device.

[0019] In another preferred embodiment of the present invention, the optical focusing assembly is a hyperbolic mirror assembly, comprising two curved mirrors spaced apart from each other along the optical axis, namely a front curved mirror and a rear curved mirror;

[0020] The front curved mirror reflects the incident radiation back to the temperature measuring device through the central aperture of the rear curved mirror;

[0021] The dual-wavelength spectrometer is integrated into the cubic structure;

[0022] The semi-transparent and semi-reflective beam splitter is installed on the diagonal surface of the cube, and the first monochromatic filter and its corresponding first radiation detector and the second monochromatic filter and its corresponding second radiation detector are respectively located on two adjacent surfaces of the cube. The curved mirror group in the optical focusing assembly is responsible for focusing and refracting the light radiation, and the refracted light radiation is divided into two beams by the semi-transparent and semi-reflective beam splitter. The two beams of light pass through their respective monochromatic filters and are projected onto their respective radiation detectors, thereby achieving accurate measurement of light radiation of different wavelengths. The detected radiation signal is processed by the ratio algorithm, and the attenuation difference of light radiation of different wavelengths in interference environments such as water mist and smoke is used to effectively offset the interference and improve the accuracy of the measurement.

[0023] By combining temperature measurement with real-time image monitoring, the system can effectively identify anomalies on the strip surface, such as iron oxide scale or water film, thereby avoiding temperature fluctuations caused by device failure or measurement errors, and improving the stability and reliability of the overall system.

[0024] In summary, the present invention solves the problems of insufficient temperature measurement accuracy, large device size, complicated operation, etc. in the prior art through innovative dual-wavelength temperature measurement technology, precise optical focusing design and perfect multi-source information processing components, greatly improves the accuracy, stability and operability of temperature measurement of hot rolling production lines, and has broad application prospects.

[0025] In another aspect, the present invention provides a method for using the water mist penetration temperature measurement system for hot rolling of steel as described in the first aspect, the method comprising:

[0026] (1) Obtain dual-wavelength radiation temperature measurement signals and visible light camera images;

[0027] (2) Processing the temperature measuring device of the steel strip to be measured and the image of the area to be measured;

[0028] (3) Detect and handle abnormal temperature fluctuations.

[0029] Temperature measurement method by fusing dual-wavelength infrared radiation and visible light image information: The present invention fully combines the special process characteristics of the hot rolling laminar cooling process, takes into account the interference of iron oxide scale and water layer that may appear on the surface of the strip, and proposes a multi-source information fusion method based on dual-wavelength infrared radiation signals and visible light image information for strip temperature measurement in the laminar cooling area. The method can effectively handle temperature measurement fluctuations caused by environmental interference (such as water vapor, steam, bubbles, etc.) and foreign matter on the surface of the strip (such as iron oxide scale), ensuring that the strip temperature can be accurately measured in complex environments. Through multi-source information fusion technology, the influence of these interference factors on the temperature measurement results can be effectively eliminated, thereby improving the accuracy and reliability of the measurement.

[0030] In another preferred embodiment of the present invention, step (1) further comprises:

[0031] After the high-pressure water jet cutting device cuts and thins the steam and water layers, the radiation beam of the strip is divided into a transmitted beam and a reflected beam after passing through a curved mirror and a semi-transparent and semi-reflective beam splitter. The transmitted beam is received by the first radiation detector after passing through the first monochromatic filter, and the reflected beam is received by the second radiation detector after passing through the second filter, and two radiation signals are obtained through the photoelectric converter; the image of the strip area is collected by the installed visible light camera, and the camera size is sufficient to be placed on the front surface of the thermometer and does not hinder the thermometer from receiving radiation from the object to be measured.

[0032] In another preferred embodiment of the present invention, step (2) further comprises:

[0033] The dual-wavelength infrared radiation signal is ratio-processed according to the thermal radiation formula to obtain the temperature to be measured. At the same time, a set of strip surface images containing iron oxide scale, cracks, impurities, and water vapor and mist is constructed, the anomaly detection model is trained and deployed in the processor, and the images obtained by the installed visible light camera are analyzed and anomaly detected to determine whether there are abnormal points or interference in the area to be measured, and the corresponding position and confidence are given.

[0034] In another preferred embodiment of the present invention, step (3) further comprises:

[0035] When the measured strip temperature fluctuates abnormally, if there are abnormal points or interference after image detection, the abnormal temperature data will be discarded; if there are no abnormal points or interference, it is considered that the temperature reflects the actual situation of the strip temperature, and the data will be accepted and included in the subsequent model calculation.

[0036] The method provided in the present invention can effectively eliminate the influence of interference factors such as iron oxide scale and water film on the surface of the strip through ratio processing of dual-wavelength infrared radiation signals and visible light image analysis, thereby greatly improving the accuracy of temperature measurement. Through real-time judgment and data processing of abnormal fluctuations, erroneous data and invalid data can be effectively filtered out, the influence of abnormal temperature fluctuations on subsequent calculation models can be avoided, and the reliability and consistency of temperature data can be improved. The method fully considers the complex environmental factors of the hot rolling laminar cooling process, and combines dual-wavelength and image information fusion technology to effectively deal with the interference of factors such as water vapor, steam, bubbles, and iron oxide scale, and can achieve stable and accurate temperature measurement under complex working conditions. The real-time image analysis component can not only effectively capture abnormal conditions on the surface of the strip, but also provide real-time feedback on the reliability of the measurement data, so that the operator can quickly determine whether it is necessary to re-measure or adjust the device. Through automatic data processing and abnormality detection, manual intervention is reduced, the degree of automation of the temperature measurement system is improved, and the temperature measurement process is made more efficient and accurate.

[0037] The present invention effectively solves the measurement errors and fluctuations caused by environmental interference and changes in strip surface conditions during temperature measurement in the prior art by fusing multi-source information (dual-wavelength infrared radiation and visible light images) in combination with the process characteristics of hot rolling production, thereby improving the accuracy and reliability of temperature measurement and the adaptability of the system, and has significant technical advantages and application prospects.

[0038] Technical Effects

[0039] The water mist penetration temperature measurement device and the temperature measurement method of dual-wavelength infrared radiation and visible light image multi-source information fusion proposed in the present invention have significant technical advantages and broad industrial application prospects. Not only do they solve many problems in existing temperature measurement technologies, but they also innovate in temperature measurement accuracy, real-time performance, anti-interference ability, etc., and have strong industrial transformation potential.

[0040] 1.Technological advantages

[0041] High precision and high reliability: This invention adopts the dual-wavelength infrared radiation ratio method. By processing the dual-wavelength ratio of the infrared radiation signal, it effectively eliminates the interference of factors such as uneven surface emissivity of the strip, water vapor, and iron oxide, ensuring high precision and high reliability of the temperature measurement results. Compared with the traditional single-wavelength infrared temperature measurement technology, the dual-wavelength infrared technology can maintain higher measurement stability in complex environments and meet the strict requirements of modern industrial production for temperature measurement accuracy.

[0042] Multi-source information fusion: By combining visible light image information with infrared radiation signal fusion processing, the present invention can simultaneously consider abnormal conditions on the strip surface (such as iron oxide scale, water vapor, etc.) and environmental interference in the measurement optical path. In the case of large fluctuations in temperature measurement, the system can analyze image information in real time, automatically determine interference factors and eliminate data, greatly improving the reliability and accuracy of measurement.

[0043] 2. Performance indicators

[0044] Measuring range: The dual-wavelength infrared temperature measuring device of the present invention is suitable for high temperature environments, and the measuring range can cover temperatures from 500°C to 1200°C or even higher, and is widely used in high temperature industrial fields such as steel smelting and aluminum production. Its high temperature measurement capability is particularly suitable for the needs of hot rolling, steel production lines and other fields.

[0045] Anti-interference ability: Through multi-wavelength signal processing and visible light image analysis, it can effectively eliminate external interferences such as water vapor and iron oxide scale to maintain the accuracy of measurement. This is especially important for temperature measurement in complex environments in steel hot rolling production lines. Whether it is steam or other interference, the present invention can provide stable measurement results under different conditions.

[0046] Response speed: The temperature measurement system of the present invention has a high response speed and can complete temperature measurement within milliseconds, which is suitable for the production environment of high-speed movement of strip steel. Real-time abnormal detection and data elimination during the measurement process help to ensure the stability and accuracy of the production process.

[0047] 3. Production implementation and industrial application prospects

[0048] Wide range of industry applications: The technical solution of the present invention is not only applicable to hot rolling production lines, but also can be widely used in industrial fields such as steel and aluminum that require high temperature measurement. This technical solution has high versatility and can be customized according to the needs of different industries, with broad market application space.

[0049] Solve the bottleneck of existing technology: the existing single-wavelength infrared temperature measurement technology has the problem of large measurement fluctuation and error in complex environments, such as high temperature, steam, bubbles, oxides, etc. Through the fusion of dual-wavelength infrared and visible light image information, the present invention breaks through these technical bottlenecks, making the temperature measurement results more stable and reliable, greatly improving the temperature measurement accuracy and data credibility in the industrial production process, and filling the gap in the existing technology.

[0050] Reduce production costs: The automated temperature control system of the present invention can reduce the rework or scrap rate caused by inaccurate temperature measurement, thereby improving production efficiency and reducing material waste. In long-term operation, the production process based on precise temperature control can significantly reduce device loss, increase the service life of the device, reduce maintenance and downtime, and further reduce production costs.

[0051] 4. Feasibility of technology transfer

[0052] The technical solution of the present invention has strong conversion feasibility, which is specifically manifested in:

[0053] Device maturity: The temperature measuring device of the present invention has high technical maturity and stability, and is suitable for practical application in industrial production lines. Its high accuracy, real-time performance and anti-interference ability make it an ideal choice for temperature measurement and monitoring in modern industrial production lines.

[0054] Market demand: As the requirements for precise temperature control and quality monitoring in industrial production continue to increase, the temperature measurement technology provided by the present invention meets the market demand trend. Especially in high-temperature manufacturing industries such as steel and aluminum, precise temperature control and process optimization have become the key to improving production efficiency and product quality. The present invention can solve the pain points of existing temperature measurement technology and has broad market application prospects.

[0055] Technology promotion and application: With the accelerated development of automated and intelligent production, the temperature measurement technology of the present invention will be more widely used in the future. By combining with industrial control systems and production management systems, more intelligent production management can be achieved, further promoting the digital transformation of industry.

[0056] The technical solution of the present invention not only has significant technical advantages, but also has broad industrial application prospects. By providing high-precision, stable and reliable temperature measurement technology, it solves many problems in existing temperature measurement technology and has huge market transformation potential. Whether in industries such as steel smelting and aluminum production, or in achieving domestic substitution, the present invention has demonstrated high industrialization prospects and technical application value, and can effectively promote the technological upgrading and intelligent development of related industries.

[0057] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a cross-sectional schematic diagram of a water mist penetration temperature measuring device for hot rolling of steel according to a preferred embodiment of the present invention;

[0059] Figure 2 It is an end view of the rear part of a water mist penetration temperature measuring device for hot rolling of steel according to a preferred embodiment of the present invention;

[0060] Figure 3 It is a schematic diagram of the deployment of a water mist penetration temperature measurement system for hot rolling of steel according to a preferred embodiment of the present invention;

[0061] Figure 4 It is a schematic diagram of a dual-wavelength optical path in an optical focusing assembly and a radiation detector in a preferred embodiment of the present invention;

[0062] Figure 5 It is a flow chart of a temperature measurement method according to a preferred embodiment of the present invention.

[0063] Among them: 1—water mist penetration temperature measuring device; 2—housing; 3—camera; 4—light source; 5—optical focusing assembly; 6—front curved mirror; 7—back curved mirror; 8—first radiation detector; 9—first monochromatic filter; 10—second radiation detector; 11—second monochromatic filter; 12—semi-transparent and semi-reflective spectrometer; 13—processor; 14—bracket; 15—on-board display; 16—high-pressure water jet cutting device; 17—rolled steel; 18—transmission roller; 19—device deployment bracket; 20—measurement field of view; 21—radiation beam. DETAILED DESCRIPTION

[0064] The following describes several preferred embodiments of the present invention with reference to the drawings in the specification, so that the technical content is clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

[0065] In the drawings, components with the same structure are indicated by the same numerical reference numerals, and components with similar structures or functions are indicated by similar numerical reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

[0066] like Figure 1 and 2 The figure shows a schematic diagram of the water mist penetration temperature measuring device for hot rolling of steel. Figure 1 yes Figure 2A cross section along line A is shown, which is an end view of the rear of the water mist penetrating the temperature measuring device 1 taken from the observer's position. The temperature measuring device assembly is contained in a housing 2, and the housing 2 may provide a water cooling jacket (not shown) to insulate the device 1 from the high temperature environment. In the hot rolling production line temperature monitoring example, the housing 2 will be mounted on a device deployment bracket 19 or a wall or other surface via a bracket 14, receiving power from a power source or generator for static monitoring at a desired location. However, in other examples, the temperature measuring device may also be implemented as a handheld or portable device with an onboard power supply.

[0067] As in the previous embodiments, the radiation detectors 8 and 10 are configured to receive radiation from the rolled steel material 17 via the optical focusing assembly 5 . Figure 1 The cone marked λ in shows the path of radiation through the assembly to the radiation detectors 8 and 10 .

[0068] like Figure 3 As shown, the high-pressure water jet cutting device 16 is used to cut and thin the cooling water sprayed from the nozzle directly above the steel in the hot rolling laminar cooling section, and the device deployment bracket 19 is used to deploy and clamp the water mist penetration temperature measuring device and the high-pressure water jet cutting device of this patent; the measurement field of view 20 is the measured area on the surface of the steel plate, which is determined by the field of view angle range of the optical component.

[0069] like Figure 4 As shown, the optical focusing assembly 5 is implemented as a hyperbolic mirror assembly, in particular, a Cassegrain curved mirror assembly. The key components of the optical focusing assembly 5 are as follows: Figure 2 As shown. The assembly includes two curved mirrors 6 and 7 spaced apart from each other along the optical axis. Curved mirror 7 is called the back curved mirror, which receives the incoming radiation beam 21 through the annular area around the front curved mirror 6. The back curved mirror 7 includes an annular curved portion that reflects the incident radiation onto the back surface of the front curved mirror 6, which itself is dome-shaped. Therefore, the front curved mirror 6 reflects the incident radiation back to the temperature measurement device through the central aperture of the back curved mirror 7. The curvatures of the two curved mirrors are configured to achieve the following Figure 3 The focusing of the incident radiation is shown so that the radiation is focused onto the detectors 8 and 10 in a manner equivalent to the result of a lens assembly.

[0070] like Figure 5 As shown, it is a flow chart of a temperature measurement method of a preferred embodiment of the present invention, and the specific steps are:

[0071] Step 1: Acquisition of dual-wavelength radiation temperature measurement signals and visible light camera images;

[0072] Step 2: temperature calculation of the temperature measuring device of the steel strip to be measured and image processing of the area to be measured;

[0073] Step 3: Detection and processing of abnormal temperature fluctuations;

[0074] Furthermore, step 1 also includes:

[0075] The radiation beam of the strip steel in the laminar cooling zone is divided into a transmitted beam and a reflected beam after passing through a curved mirror and a semi-transparent and semi-reflective beam splitter. Considering that the strip steel temperature is high during the hot rolling process, and the temperature measurement range needs to cover 500℃ to 1200℃, based on the blackbody radiation spectrum curve, the central wavelength of the first monochromatic filter is selected to be λ 1 =0.8μm, select the second monochromatic filter center wavelength as λ 2 =0.9μm. The transmitted light beam and the reflected light beam are received by the first and second radiation detectors through the first and second monochromatic filters respectively. The image of the strip area is collected by the installed visible light camera, and the size of the camera is sufficient to be placed on the front surface of the thermometer without hindering the thermometer from receiving radiation from the object to be measured.

[0076] Furthermore, step 2 also includes:

[0077] Based on the blackbody radiation law and Wien's equation in thermodynamics, the ratio R(T) of the optical radiation measurement signals generated by the first and second radiation detectors is as follows:

[0078]

[0079] Among them C 2 is the second radiation constant. Assuming that the bandwidths at the two wavelengths are equal and that the emissivity of the object to be measured is approximately the same at the two close wavelengths considered, the strip temperature measurement value is calculated as follows:

[0080]

[0081] Anomalies in the strip area to be tested are judged by using an anomaly detection method based on deep convolutional network and attention mechanism. A set of strip surface images containing iron oxide scale, cracks, impurities, water vapor and mist is constructed. The anomaly detection model is trained and tested and deployed in the processor.

[0082] Furthermore, step 3 also includes:

[0083] When the measured strip temperature fluctuates abnormally, if the above-mentioned abnormal points or interference exist after image detection, the abnormal temperature data will be discarded; if the above-mentioned interference does not exist, it is considered that the obtained temperature can reflect the actual situation of the strip temperature, and the data will be accepted and included in the subsequent model calculation.

[0084] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in the field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A water mist penetration temperature measurement system for hot rolling of steel, characterized in that: It includes a water mist penetration temperature measuring device and a deployment bracket device; The water mist penetration temperature measurement device comprises a visible light guiding-tracking component, an optical focusing component, a dual-wavelength spectroscopic component, a multi-source information processing component and a display component.

2. The steel hot rolling water mist penetration temperature measurement system according to claim 1, characterized in that: The visible light guidance-tracking assembly includes a camera and a visible light source; The optical focusing assembly includes a front curved mirror and a back curved mirror.

3. The steel hot rolling water mist penetration temperature measurement system according to claim 1, characterized in that: The dual-wavelength spectroscopic component comprises a semi-transmissive and semi-reflective spectroscope, a first monochromatic filter and a first radiation detector arranged on the reflected light path, and a second monochromatic filter and a second radiation detector arranged on the transmitted light path.

4. The steel hot rolling water mist penetration temperature measurement system according to claim 1, characterized in that: The multi-source information processing component connects the electrical signal and the image signal to the processor through a transmission line, and transmits the processed image information and temperature information to the onboard display of the display component.

5. The steel hot rolling water mist penetration temperature measurement system according to claim 1, characterized in that: The deployment bracket device includes a high-pressure water jet cutting device and a device deployment bracket; The high-pressure water jet cutting device is used to accurately cut and evenly thin the steel material using cooling water sprayed from a nozzle directly above the steel material; The device deployment bracket is used for stably installing and accurately positioning the water mist penetration temperature measuring device and the high-pressure water jet cutting device.

6. The steel hot rolling water mist penetration temperature measurement system according to claim 1, characterized in that: The optical focusing assembly is a hyperbolic mirror assembly, comprising two curved mirrors spaced apart from each other along the optical axis, namely a front curved mirror and a rear curved mirror; The front curved mirror reflects incident radiation back to the temperature measuring device through the central aperture of the rear curved mirror; The dual-wavelength spectroscopic component is integrated as a whole into a cubic structure; The semi-transparent and semi-reflective beam splitter is installed on the diagonal surface of the cube, and the first monochromatic filter and its corresponding first radiation detector and the second monochromatic filter and its corresponding second radiation detector are respectively located on two adjacent surfaces of the cube.

7. A method using the steel hot rolling water mist penetration temperature measurement system as described in claims 1-6, characterized in that: The method comprises: (1) Obtain dual-wavelength radiation temperature measurement signals and visible light camera images; (2) Processing the temperature measuring device of the steel strip to be measured and the image of the area to be measured; (3) Detect and handle abnormal temperature fluctuations.

8. The method according to claim 7, characterized in that Step (1) further includes: After the high-pressure water jet cutting device cuts and thins the steam and water layers, the radiation beam of the strip is divided into a transmitted beam and a reflected beam after passing through a curved mirror and a semi-transparent and semi-reflective beam splitter. The transmitted beam is received by the first radiation detector after passing through a first monochromatic filter, and the reflected beam is received by the second radiation detector after passing through a second filter, and two radiation signals are obtained through a photoelectric converter; the image of the strip area is collected by an installed visible light camera, and the size of the camera is sufficient to be placed on the front surface of the thermometer and does not hinder the thermometer from receiving radiation from the object to be measured.

9. The method according to claim 7, characterized in that Step (2) further includes: The dual-wavelength infrared radiation signal is ratio-processed according to the thermal radiation formula and the temperature to be measured is obtained. At the same time, a set of strip surface images containing iron oxide scale, cracks, impurities, and water vapor and mist is constructed, an anomaly detection model is trained and deployed in the processor, and the images obtained by the installed visible light camera are analyzed and anomaly detected to determine whether there are abnormal points or interference in the area to be measured, and the corresponding position and confidence are given.

10. The method according to claim 7, characterized in that Step (3) also includes: When the measured strip temperature fluctuates abnormally, if there are abnormal points or interference after image detection, the abnormal temperature data will be discarded; if there are no abnormal points or interference, it is considered that the temperature reflects the actual situation of the strip temperature, and the data will be accepted and included in the subsequent model calculation.

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