CN114928682A - High-temperature metal piece surface pattern shooting system and method - Google Patents

Abstract

The invention relates to a high-temperature metal piece surface pattern shooting system, comprising: a specific wavelength filtering optical module; a picture acquisition module; the picture acquisition module comprises a camera sensor module; the specific wavelength filtering optical module is optically coupled with the camera sensor module; and an image signal processing module. The invention also relates to a method for shooting the surface pattern of the high-temperature metal piece, which comprises the following steps: sending out a trigger signal; sending out an acquisition control signal, sending out a denoising control signal, sending out a high photosensitive gain control signal and sending out an image signal processing control signal; shooting a frame of analog image signals; carrying out denoising operation on the analog image signal; carrying out high photosensitive gain operation to obtain a denoised and gained analog electric signal, and carrying out digital-to-analog conversion and digital gain to obtain an image electric signal; the image electrical signal is converted into a digitally encoded electrical signal. According to the invention, the surface image of the high-temperature metal part can be acquired under a dark condition without adopting an auxiliary light source; the problems of camera sensor saturation and grey-white images are solved.

Description

Translated fromChinese

高温金属件表面图案拍摄系统及方法High-temperature metal surface pattern photographing system and method

技术领域technical field

本发明涉及高温金属件表面拍摄技术领域，具体地涉及高温金属件表面图案拍摄系统及方法。The invention relates to the technical field of photographing the surface of high-temperature metal parts, in particular to a system and method for photographing the surface patterns of high-temperature metal parts.

背景技术Background technique

高温金属件是指加热到高温状态的金属制成品，其特点是表面看起来灰黑，但温度非常高，向外发散大量的红外线能量辐射。在流水线上，金属件都是打上了各种编号，以便于管理；但高温的金属件则非常不容易拍摄。以下以钢厂的钢板板坯为例，详细对当前的技术问题进行说明和解释：High-temperature metal parts refer to metal products that are heated to a high temperature. It is characterized by a gray-black surface, but the temperature is very high, and a large amount of infrared energy radiation is emitted outward. On the assembly line, the metal parts are marked with various numbers to facilitate management; but the high-temperature metal parts are very difficult to photograph. The following takes steel slabs from steel mills as an example to illustrate and explain the current technical issues in detail:

钢厂里有许多钢板板坯需要被放进加热炉再次加热，按照工业生产流程，由于要加热钢板板坯的同时知晓所抓取板坯的编号，操作人员需站在板坯前方读取编号，控制行车的抓钩来抓取相应板坯，然后将板坯按生产排序放进加热炉中。There are many steel slabs in the steel mill that need to be put into the heating furnace for reheating. According to the industrial production process, since the steel slab needs to be heated and the number of the grabbed slab is known, the operator needs to stand in front of the slab and read the number. , control the grapple hook of the crane to grab the corresponding slab, and then put the slab into the heating furnace according to the production order.

钢板板坯的温度大部分高达200～400度，长时间站在板坯前方，严重损害操作人员身体健康，操作环境对生命构成危险。为了解决该问题，需要一套能自动读取钢板板坯编号，并自动输入生产系统，然后由行车自动抓取需加热的对应板坯。因此急需一套能够自动读取钢板板坯上喷标字符编号的硬件设备及软件。The temperature of the steel slab is mostly as high as 200 to 400 degrees. Standing in front of the slab for a long time will seriously damage the health of the operator, and the operating environment will pose a danger to life. In order to solve this problem, a set of steel slab numbers that can automatically read and input into the production system is required, and then the corresponding slabs to be heated are automatically grabbed by the crane. Therefore, there is an urgent need for a set of hardware equipment and software that can automatically read the number of characters sprayed on the steel slab.

因此如何给温度大部分高达200～400度的钢板板坯拍照并能准确识别出来，就成为一项技术问题。Therefore, how to take pictures of steel slabs with temperatures as high as 200 to 400 degrees and accurately identify them has become a technical problem.

成熟的识别解决方案有很多，例如百度飞桨，识别准确很高，因此不存在本发明所要解决的问题。There are many mature identification solutions, such as Baidu Flying Paddle, the identification accuracy is very high, so there is no problem to be solved by the present invention.

于是剩下要解决的就是硬件问题。硬件的主体是工业相机。但目前市面上的常见工业相机都不符合拍摄高温金属件的要求。So the only thing left to solve is the hardware problem. The main body of the hardware is an industrial camera. However, the common industrial cameras currently on the market do not meet the requirements for shooting high-temperature metal parts.

典型的工业相机例子如由北京微视新纪元科技有限公司制作的ROSA工业相机，在20℃室温环境下长时间工作温度为50-60摄氏度。作为工业相机，其适用环境非常广，但唯独不适合拍摄高温金属件，这是由于：A typical example of an industrial camera is the ROSA industrial camera produced by Beijing Microvision New Era Technology Co., Ltd., which works at a temperature of 50-60 degrees Celsius for a long time at a room temperature of 20 degrees Celsius. As an industrial camera, it is suitable for a wide range of environments, but it is not suitable for shooting high-temperature metal parts, because:

拍摄系统需放置在钢厂板坯加热炉前端生产线上使用，外部环境很高；由于板坯被外部氧化皮覆盖，外观为黑色，实际温度高达200-400℃；能将距离1-2 米处的空气温度加热到55摄氏度以上。The shooting system needs to be placed on the front-end production line of the slab heating furnace in the steel mill, and the external environment is very high; because the slab is covered with external oxide skin, the appearance is black, and the actual temperature is as high as 200-400 ° C; it can be 1-2 meters away. The air temperature is heated to above 55 degrees Celsius.

更糟糕的是钢厂生产环境中的光照十分不均，干扰众多。如果天气晴朗，则厂房内部光照条件较好；如果天气不好，则厂房内较为昏暗；对于24小时生产的钢厂，夜晚厂房内有灯光，这些灯光的照明不均匀；且厂房内房梁上有天车 (也叫行车)开动，有时会遮挡灯光，造成下方光照变化。To make matters worse, the lighting in the production environment of the steel plant is very uneven and there are many disturbances. If the weather is sunny, the lighting conditions inside the workshop are better; if the weather is bad, the workshop is dim; for a 24-hour steel mill, there are lights in the workshop at night, and the lighting of these lights is uneven; and there are beams on the beams in the workshop. The overhead crane (also called the traverse) moves, sometimes blocking the lights, causing the light below to change.

更糟糕的是，钢板板坯呈黑褐色，为了看清上面的字符，需要光照；现有的技术方案都是使用传统方式，即在设备上加装照明灯；To make matters worse, the steel slab is dark brown, and in order to see the characters on it, light is required; the existing technical solutions all use the traditional method, that is, adding lights on the equipment;

现有技术的缺陷在于：The disadvantages of the prior art are:

1.由于现有技术增加硬件的复杂度，且灯本身发热，从而导致整体系统在高温环境下容易损坏；1. Because the existing technology increases the complexity of the hardware, and the lamp itself heats up, the overall system is easily damaged in a high temperature environment;

2.由于软件算法鲁棒性差，因自身有灯光照明，加上上述厂房内光照复杂，从而致使软件不稳定，需要多种参数调试，且问题难以良好解决。2. Due to the poor robustness of the software algorithm, its own lighting, and the complex lighting in the above-mentioned workshop, the software is unstable, requiring various parameter debugging, and the problem is difficult to solve.

现有技术并没有更好的解决上述技术问题的技术方案；于是本发明采用反向思维，既不使用灯光照明，还在镜头前加装减光镜，将复杂的环境光照尽量压至最低，由此相机通过镜头采集到的图像是昏暗的，这样就能解决环境光照复杂多变的问题。There is no better technical solution for solving the above-mentioned technical problems in the prior art; therefore, the present invention adopts reverse thinking, does not use lighting, and also installs a dimming mirror in front of the lens to minimize the complex ambient light as much as possible. Therefore, the image captured by the camera through the lens is dim, which can solve the problem of complex and changeable ambient lighting.

但这样做又带来了新的技术问题：But doing so brings new technical problems:

由于图像昏暗，从而难以识别喷标字符；It is difficult to recognize the marking characters due to the dim image;

为了解决这个问题，本发明先是采用了高感光工业相机，在昏暗环境下对光线很敏感，解决了采集到的图像昏暗问题。In order to solve this problem, the present invention firstly adopts a high-sensitivity industrial camera, which is very sensitive to light in a dim environment, and solves the problem of dim collected images.

可采用高感光工业相机随之而来又有了新的问题：The adoption of high-sensitivity industrial cameras brings new problems:

由于钢板板坯实际温度高达200-400℃，因外部被氧化皮覆盖，人观察到的外观为黑褐色，但200-400摄氏度的钢板板坯红外辐射能量极大，从而造成了相机传感器饱和，高感光工业相机采集到的图像是一片白。Since the actual temperature of the steel slab is as high as 200-400°C, and the exterior is covered with oxide skin, the appearance observed by people is dark brown, but the infrared radiation energy of the steel slab at 200-400°C is extremely large, which causes the camera sensor to be saturated, The image captured by the high-sensitivity industrial camera is white.

发明内容SUMMARY OF THE INVENTION

本发明针对上述问题，提供高温金属件表面图案拍摄系统及方法，其目的在于无需采用辅助光源，即可在昏暗条件下采集高温金属件的表面图像，解决环境光照复杂多变的问题；解决由于高温金属件的红外辐射能量大导致的相机传感器饱和，采集到的图像一片白的问题。Aiming at the above problems, the present invention provides a system and method for photographing surface patterns of high-temperature metal parts, which aims to collect surface images of high-temperature metal parts under dim conditions without using auxiliary light sources, so as to solve the problem of complex and changeable ambient lighting; The large infrared radiation energy of high-temperature metal parts causes the camera sensor to be saturated, and the collected image is white.

为解决上述问题，本发明提供的技术方案为：In order to solve the above-mentioned problems, the technical scheme provided by the present invention is:

一种高温金属件表面图案拍摄系统，包含以下模块：A high-temperature metal surface pattern shooting system includes the following modules:

特定波长滤波光学模块，用于部分过滤高温金属件向外发散的红外辐射能量；A specific wavelength filtering optical module is used to partially filter the infrared radiation energy emitted by high temperature metal parts;

图片采集模块，用于拍摄高温金属件的经过所述特定波长滤波光学模块部分过滤掉红外辐射能量的模拟图像信号，并将所述模拟图像信号转为图像电信号；The picture acquisition module is used for photographing the analog image signal of the high-temperature metal part that has been partially filtered out of infrared radiation energy by the specific wavelength filtering optical module, and converts the analog image signal into an image electrical signal;

所述图片采集模块包含用于拍摄所述模拟图像信号的相机传感器模块；The picture acquisition module includes a camera sensor module for capturing the analog image signal;

所述特定波长滤波光学模块与所述相机传感器模块光学耦合；the specific wavelength filtering optical module is optically coupled with the camera sensor module;

图像信号处理模块，用于将所述图像电信号转为数字编码电信号；所述数字编码电信号即为本拍摄系统的最终输出结果。The image signal processing module is used for converting the image electrical signal into a digitally encoded electrical signal; the digitally encoded electrical signal is the final output result of the photographing system.

优选地，所述特定波长滤波光学模块为滤光镜，性能参数为：波段为400nm-800nm。Preferably, the specific wavelength filtering optical module is a filter, and the performance parameters are: the wavelength band is 400nm-800nm.

优选地，所述相机传感器模块为可见光及部分红外波段CCD传感器，性能参数为：峰值响应在730nm处，且量子效率为85％。Preferably, the camera sensor module is a visible light and partial infrared band CCD sensor, and the performance parameters are: the peak response is at 730 nm, and the quantum efficiency is 85%.

优选地，还包含用于控制本拍摄系统的主控模块；其中：Preferably, it also includes a main control module for controlling the shooting system; wherein:

所述主控模块的传感器控制接口与的所述可见光及部分红外波段CCD传感器的控制信号输入接口电信号耦接；The sensor control interface of the main control module is electrically coupled to the control signal input interface of the visible light and part of the infrared band CCD sensor;

所述主控模块的处理模块控制接口与的所述图像信号处理模块的控制信号输入接口电信号耦接。The processing module control interface of the main control module is electrically coupled to the control signal input interface of the image signal processing module.

优选地，所述图片采集模块还包含用于去掉所述模拟图像信号中的噪声的去噪模块；Preferably, the picture acquisition module further comprises a denoising module for removing noise in the analog image signal;

所述去噪模块的数据信号输入接口与所述可见光及部分红外波段CCD传感器的数据信号输出接口电信号耦接；所述去噪模块的控制信号输入接口与所述主控模块的去噪模块控制接口电信号耦接。The data signal input interface of the de-noising module is electrically coupled to the data signal output interface of the visible light and part of the infrared band CCD sensor; the control signal input interface of the de-noising module is connected to the de-noising module of the main control module. The control interface is coupled with electrical signals.

优选地，所述图片采集模块还包含用于加强所述模拟图像信号的高感光增益，并将所述模拟图像信号转为所述图像电信号，然后再将所述图像电信号进行数字增益的高感光增益模块；Preferably, the picture acquisition module further includes a high photosensitive gain for enhancing the analog image signal, converts the analog image signal into the electrical image signal, and then performs digital gain on the electrical image signal. High-sensitivity gain module;

所述高感光增益模块的数据信号输入接口与所述去噪模块的数据信号输出接口电信号耦接；所述高感光增益模块的控制信号输入接口与所述主控模块的高感光增益模块控制接口电信号耦接；所述高感光增益模块的数据信号输出接口与所述图像信号处理模块的数据信号输入接口电信号耦接。The data signal input interface of the high-sensitivity gain module is electrically coupled to the data signal output interface of the denoising module; the control signal input interface of the high-sensitivity gain module is controlled by the high-sensitivity gain module of the main control module The interface is coupled with electrical signals; the data signal output interface of the high-sensitivity gain module is electrically coupled with the data signal input interface of the image signal processing module.

优选地，还包含用于控制本拍摄系统启动拍摄流程的信号触发模块；Preferably, it also includes a signal trigger module for controlling the shooting system to start the shooting process;

所述信号触发模块的触发信号输出接口与所述主控模块的触发信号输入接口电信号耦接。The trigger signal output interface of the signal trigger module is electrically coupled with the trigger signal input interface of the main control module.

优选地，还包含用于远程通信的网口通信模块；Preferably, it also includes a network port communication module for remote communication;

所述网口通信模块的数据信号输入接口与所述图像信号处理模块的数据信号输出接口电信号耦接；The data signal input interface of the network port communication module is electrically coupled to the data signal output interface of the image signal processing module;

所述网口通信模块的控制信号输出接口与所述主控模块的控制信号输入接口电信号耦接；The control signal output interface of the network port communication module is electrically coupled to the control signal input interface of the main control module;

所述网口通信模块的数据信号接口与RJ45接口电信号耦接。The data signal interface of the network port communication module is electrically signal-coupled with the RJ45 interface.

一种利用高温金属件表面图案拍摄系统的高温金属件表面图案拍摄方法，包含以下步骤：A method for photographing a surface pattern of a high-temperature metal piece using a high-temperature metal piece surface pattern photographing system, comprising the following steps:

S100.当所述信号触发模块侦测到有高温金属件经过人工预设的拍摄点的时刻，发出触发信号，并将所述触发信号发送至所述主控模块的触发信号输入接口；S100. When the signal trigger module detects a moment when the high-temperature metal piece passes through the manually preset shooting point, a trigger signal is sent, and the trigger signal is sent to the trigger signal input interface of the main control module;

S200.当所述主控模块侦测到有新进入的所述触发信号后，则同时向所述相机传感器模块发出采集控制信号、向所述去噪模块发出去噪控制信号、向所述高感光增益模块发出高感光增益控制信号、向所述图像信号处理模块发出图像信号处理控制信号；S200. After the main control module detects the newly entered trigger signal, it simultaneously sends a collection control signal to the camera sensor module, sends a denoising control signal to the denoising module, and sends a denoising control signal to the high The photosensitive gain module sends out a high photosensitive gain control signal, and sends an image signal processing control signal to the image signal processing module;

S300.当所述相机传感器模块侦测到有新进入的所述采集控制信号后，则透过与自己光学耦合的所述特定波长滤波光学模块拍摄一帧所述模拟图像信号，然后将该帧所述模拟图像信号发送给所述去噪模块；S300. After the camera sensor module detects the newly entered acquisition control signal, the camera sensor module captures a frame of the analog image signal through the specific wavelength filtering optical module optically coupled to itself, and then the frame sending the analog image signal to the denoising module;

S400.当所述去噪模块侦测到有新进入的所述模拟图像信号，且侦测到有新进入的所述去噪控制信号，则对所述模拟图像信号进行去噪操作，去掉信号噪声，得到经去噪的模拟电信号，并将经去噪的模拟电信号发送给所述高感光增益模块；S400. When the denoising module detects the newly entered analog image signal and detects the newly entered denoising control signal, perform a denoising operation on the analog image signal to remove the signal noise, obtain a denoised analog electrical signal, and send the denoised analog electrical signal to the high-sensitivity gain module;

S500.当所述高感光增益模块侦测到有新进入的经去噪的模拟电信号，且侦测到有新进入的所述高感光增益控制信号，则对经去噪的模拟电信号进行高感光增益操作，得到经去噪且增益的模拟电信号，并对经去噪且高感光增益的模拟电信号进行数模转换，得到所述图像电信号，然后再对所述图像电信号进行数字增益，再然后将数字增益后的所述图像电信号发送给所述图像信号处理模块；S500. When the high-sensitivity gain module detects a newly entered denoised analog electrical signal, and detects that there is a newly entered high-sensitivity gain control signal, the denoised analog electrical signal is processed High photosensitive gain operation, obtain the denoised and gain analog electrical signal, and perform digital-to-analog conversion on the denoised and high photosensitive gain analog electrical signal to obtain the image electrical signal, and then perform digital-to-analog conversion on the image electrical signal. digital gain, and then send the image electrical signal after the digital gain to the image signal processing module;

S600.当所述图像信号处理模块侦测到有新进入的图像电信号，且侦测到有新进入的所述图形信号处理控制信号，则将所述图像电信号转为所述数字编码电信号，并将所述数字编码电信号发送给所述网口通信模块。S600. When the image signal processing module detects a newly entered image electrical signal and detects a newly entered graphic signal processing control signal, then convert the image electrical signal into the digitally encoded electrical signal signal, and send the digitally encoded electrical signal to the network port communication module.

本发明与现有技术对比，具有以下优点：Compared with the prior art, the present invention has the following advantages:

1.由于本发明利用高温金属件的自身红外辐射作为光源进行拍摄，从而无需采用现有技术的辅助光源，即可在昏暗条件下采集高温金属件的表面图像，完美解决了环境光照复杂多变的问题；1. Since the present invention uses the infrared radiation of the high-temperature metal piece itself as the light source for shooting, the surface image of the high-temperature metal piece can be collected under dim conditions without using the auxiliary light source of the prior art, which perfectly solves the complex and changeable environment illumination. The problem;

2.由于本发明采用了波段为400nm-800nm的滤光镜，组合峰值响应在730nm 处且量子效率为85％的CCD传感器，从而解决了由于高温金属件的红外辐射能量大导致的相机传感器饱和，采集到的图像一片白的问题。2. Since the present invention adopts a filter with a wavelength range of 400nm-800nm, a CCD sensor with a combined peak response at 730nm and a quantum efficiency of 85% is used to solve the camera sensor saturation caused by the high infrared radiation energy of high-temperature metal parts. , the collected image is white.

附图说明Description of drawings

图1为本发明具体实施例的拍摄系统的系统逻辑结构示意图；1 is a schematic diagram of a system logic structure of a shooting system according to a specific embodiment of the present invention;

图2a为本发明具体实施例的对比拍摄照片，参数为普通工业相机A1300GM60-16687μs曝光时间且无滤镜；Fig. 2a is a comparative photograph of a specific embodiment of the present invention, and the parameters are the exposure time of an ordinary industrial camera A1300GM60-16687 μs and no filter;

图2b为本发明具体实施例的对比拍摄照片，参数为高感光相机A1500-6287 μs曝光时间且无滤镜；Fig. 2b is a comparative photograph of a specific embodiment of the present invention, and the parameters are high-sensitivity camera A1500-6287 μs exposure time and no filter;

图2c为本发明具体实施例的对比拍摄照片，参数为高感光相机A1500-7859 μs曝光时间且无滤镜；Fig. 2c is a comparative photograph of a specific embodiment of the present invention, and the parameters are high-sensitivity camera A1500-7859 μs exposure time and no filter;

图2d为本发明具体实施例的对比拍摄照片，参数为高感光相机A1500-20120 μs曝光时间且无滤镜；FIG. 2d is a comparative photograph of a specific embodiment of the present invention, and the parameters are high-sensitivity camera A1500-20120 μs exposure time and no filter;

图3为本发明具体实施例的400nm-800nm的滤光镜片的光谱曲线；Fig. 3 is the spectral curve of the filter lens of 400nm-800nm of the specific embodiment of the present invention;

图4为本发明具体实施例的可见光及部分红外波段CCD传感器的光谱曲线；Fig. 4 is the spectral curve of the visible light and partial infrared band CCD sensor of the specific embodiment of the present invention;

图5为本发明具体实施例的400nm-800nm的滤光镜片与可见光及部分红外波段CCD传感器组合后的光谱曲线；Fig. 5 is the spectral curve after the filter lens of 400nm-800nm of the specific embodiment of the present invention is combined with visible light and part of infrared band CCD sensor;

图6为本发明具体实施例的拍摄方法的流程示意图。FIG. 6 is a schematic flowchart of a photographing method according to a specific embodiment of the present invention.

具体实施方式Detailed ways

下面结合具体实施例，进一步阐明本发明，应理解这些实施例仅用于说明本发明而不用于限制本发明的范围，在阅读了本发明之后，本领域技术人员对本发明的各种等价形式的修改均落于本申请所附权利要求所限定的范围。Below in conjunction with specific embodiments, the present invention will be further illustrated, and it should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. The modifications all fall within the scope defined by the appended claims of this application.

如图1所示，一种高温金属件表面图案拍摄系统，包含以下模块：As shown in Figure 1, a high-temperature metal surface pattern shooting system includes the following modules:

特定波长滤波光学模块，用于部分过滤高温金属件向外发散的红外辐射能量。A specific wavelength filtering optical module, used to partially filter the infrared radiation energy emitted by high temperature metal parts.

本具体实施例中，特定波长滤波光学模块为滤光镜，性能参数为：波段为 400nm-800nm。In this specific embodiment, the specific wavelength filtering optical module is a filter, and the performance parameters are: the wavelength band is 400nm-800nm.

图片采集模块，用于拍摄高温金属件的经过特定波长滤波光学模块部分过滤掉红外辐射能量的模拟图像信号，并将模拟图像信号转为图像电信号。The image acquisition module is used to capture the analog image signal of the high-temperature metal part that has been filtered by the specific wavelength filtering optical module to filter out the infrared radiation energy, and convert the analog image signal into an image electrical signal.

图片采集模块包含用于拍摄模拟图像信号的相机传感器模块。The picture acquisition module includes a camera sensor module for capturing analog image signals.

本具体实施例中，相机传感器模块为可见光及部分红外波段CCD传感器，性能参数为：峰值响应在730nm处，且量子效率为85％。In this specific embodiment, the camera sensor module is a visible light and partial infrared band CCD sensor, and the performance parameters are: the peak response is at 730 nm, and the quantum efficiency is 85%.

需要说明的是，滤光镜的性能参数和可见光及部分红外波段CCD传感器的性能参数的选择，是本发明的核心，是通过无数次试验得到的；其他性能参数的组合都无法满足解决本发明所应对的技术问题的能力，具体情况如下：It should be noted that the selection of the performance parameters of the filter and the performance parameters of the visible light and part of the infrared band CCD sensor is the core of the present invention and is obtained through numerous tests; the combination of other performance parameters cannot satisfy the solution of the present invention. The ability to deal with technical problems, as follows:

为了同时解决图像昏暗，又不能相机传感器饱和的两个难题，申请人进行了大量实验，其目的在于找出一组滤光镜和CCD传感器的性能参数组合；经过大量实验，最终滤光镜的性能参数被确定在了以下6组：如表1所示：In order to solve the two problems of dim image and camera sensor saturation at the same time, the applicant has carried out a lot of experiments, the purpose of which is to find out the combination of performance parameters of a set of filters and CCD sensors; The performance parameters are determined in the following 6 groups: as shown in Table 1:

表1.最终筛选滤光镜性能参数列表Table 1. List of final screening filter performance parameters

滤光镜编号filter number滤光镜性能参数Filter performance parameters11400-700nm400-700nm22400-800nm400-800nm33400-1100nm400-1100nm44700-1100nm700-1100nm55800-1100nm800-1100nm661100-1700nm1100-1700nm

而最终可见光及部分红外波段CCD传感器的性能参数的性能参数则被确定在了以下4组：如表2所示：The performance parameters of the final visible light and part of the infrared band CCD sensor performance parameters are determined in the following four groups: as shown in Table 2:

表2最终筛选CCD性能参数列表Table 2 List of final screening CCD performance parameters

CCD编号CCD numberCCD性能参数CCD performance parameters11RS-A1500RS-A150022RS-A1300RS-A130033RS-A2300RS-A230044HK-A5100HK-A5100

然后，将表1和表2的设备在不同性能参数下进行排列组合，以试图找到一个合适的波段，既能隔绝板坯红外辐射能量，又能看清高温金属件上的字符。Then, the devices in Table 1 and Table 2 are arranged and combined under different performance parameters to try to find a suitable band, which can not only isolate the infrared radiation energy of the slab, but also see the characters on the high-temperature metal parts clearly.

最终确定，波段为400-800nm滤光镜，峰值响应在730nm处，量子效率QE＝85％的性能参数组合能满足要求。It is finally determined that the wavelength band is 400-800nm filter, the peak response is at 730nm, and the combination of performance parameters with quantum efficiency QE=85% can meet the requirements.

这个参数组合的相机是目前市面上没有，也没有文献记载的，因此申请人采用定制的方式制作了一台满足上述性能参数组合的相机原型，并用定制相机与市售成品相机进行了实验对比；试验结果表明，采用本发明的拍摄系统所拍摄的照片既能看清板坯表面，又能隔绝大量红外辐射，完美解决了要解决的技术问题。The camera with this parameter combination is not currently available on the market and has not been documented in the literature. Therefore, the applicant has made a camera prototype that meets the above performance parameter combination in a customized way, and conducted an experimental comparison between the customized camera and the commercially available camera; The test results show that the photos taken by the photographing system of the present invention can not only see the surface of the slab clearly, but also isolate a large amount of infrared radiation, which perfectly solves the technical problem to be solved.

如图2a～图2d所示，为不同性能参数组合下的光照实验拍摄的照片；拍摄目标为图中的通电高温的烙铁头。As shown in Fig. 2a-Fig. 2d, the photos are the photos taken under the illumination experiments under different combinations of performance parameters;

如图3所示，为一块400nm-800nm的滤光镜片的光谱曲线；需要说明的是：一般来说图像处理使用可见光波段，即400nm-700nm波长范围；但对于我们所探测的目标是温度高达200度-400度的金属件，如钢坯，其红外辐射特别大，过量的辐射从相机镜头进入照射到传感器上，会造成相机传感器过载。As shown in Figure 3, it is the spectral curve of a filter lens of 400nm-800nm; it should be noted that: in general, the image processing uses the visible light band, that is, the wavelength range of 400nm-700nm; but for the target we detect, the temperature is as high as Metal parts at 200-400 degrees, such as steel billets, have particularly large infrared radiation. Excessive radiation enters the sensor from the camera lens, which will cause the camera sensor to overload.

因此传统的手段使用减光镜削弱能量，或者使用波长范围比400nm-700nm还小的窄带滤光镜，滤掉红外辐射。但使用该方法又会使采集到的图像过暗，为了解决过暗的问题，又必须加装照明等主动光源。而现场环境光照复杂，增加主动光源，会造成更多的不稳定因素，从而又使软件算法过于复杂。Therefore, traditional methods use dimming filters to reduce energy, or use narrow-band filters with a wavelength range smaller than 400nm-700nm to filter out infrared radiation. However, using this method will make the collected image too dark. In order to solve the problem of too dark, it is necessary to install an active light source such as lighting. However, the scene environment lighting is complex, and the addition of active light sources will cause more unstable factors, which will make the software algorithm too complicated.

因此，本发明采用反向思维，干脆不使用主动光源，利用钢坯自身的红外辐射，将钢坯自身变成一个光源。所以钢坯所发出的红外辐射既要滤除，又不能完全滤除，然后根据上述实验，在系统中使用上述400nm-800nm滤光镜最为合适，其中700nm-800nm已经属于NIR近红外波段。让高温金属件所产生的这部分能量辐射，通过镜头进入相机照射到传感器上。Therefore, the present invention adopts reverse thinking, does not use an active light source at all, and uses the infrared radiation of the steel billet itself to turn the steel billet itself into a light source. Therefore, the infrared radiation emitted by the billet must be filtered out, but not completely. Then, according to the above experiment, it is most suitable to use the above 400nm-800nm filter in the system, of which 700nm-800nm already belongs to the NIR near-infrared band. Let this part of the energy radiation generated by the high temperature metal parts enter the camera through the lens and irradiate on the sensor.

需要说明的是，本发明的CCD传感器来自于微视相机RS-A1500-GM60-NIR 上面的传感器，为同一款型。It should be noted that the CCD sensor of the present invention comes from the sensor on the micro-vision camera RS-A1500-GM60-NIR, which is the same type.

如图4所示，需要说明的是，从本发明所选择的可见光及部分红外波段CCD 传感器的光谱曲线可以看出，该传感器的光谱曲线较为特殊，一般可见光传感器的光谱曲线400nm开始，700nm后面是非可见光部分，会衰减很多。但是该传感器恰恰相反，它在700nm后面即730nm的位置为最高峰，量子转换效率可达85％。As shown in FIG. 4 , it should be noted that from the spectral curve of the visible light and part of the infrared band CCD sensor selected in the present invention, the spectral curve of the sensor is relatively special. Generally, the spectral curve of the visible light sensor starts at 400nm, and after 700nm It is the non-visible light part, which will be attenuated a lot. But the sensor is just the opposite. It has the highest peak at 730nm behind 700nm, and the quantum conversion efficiency can reach 85%.

将上述滤光镜和可见光及部分红外波段CCD传感器组合，即可得到一个变化的光谱曲线；如图5所示，此时光谱能量感应范围为450nm-800nm区段。Combining the above filters with visible light and some infrared band CCD sensors, a changing spectral curve can be obtained; as shown in Figure 5, the spectral energy sensing range is 450nm-800nm.

特定波长滤波光学模块与相机传感器模块光学耦合；The specific wavelength filtering optical module is optically coupled with the camera sensor module;

图像信号处理模块，用于将图像电信号转为数字编码电信号；数字编码电信号即为本拍摄系统的最终输出结果。The image signal processing module is used to convert the image electrical signal into a digitally encoded electrical signal; the digitally encoded electrical signal is the final output result of the shooting system.

需要说明的是，本发明所采用的图像信号处理模块为常规功能，接收来自高感光增益模块的经过去噪的数字型图像电信号，将图像电信号进一步进行整形，放大，进一步去噪平滑，锐化等一系列常规图像增强操作，得到数字编码电信号。最终通过网口通讯模块，将数字编码电信号传递给远程主机。It should be noted that the image signal processing module used in the present invention is a conventional function, receiving the denoised digital image electrical signal from the high-sensitivity gain module, further shaping and amplifying the image electrical signal, further denoising and smoothing, A series of conventional image enhancement operations such as sharpening are performed to obtain digitally encoded electrical signals. Finally, the digital coded electrical signal is transmitted to the remote host through the network port communication module.

本拍摄系统还包含用于控制本拍摄系统的主控模块；其中：The shooting system also includes a main control module for controlling the shooting system; wherein:

主控模块的传感器控制接口与的可见光及部分红外波段CCD传感器的控制信号输入接口电信号耦接。The sensor control interface of the main control module is electrically coupled to the control signal input interface of the visible light and part of the infrared band CCD sensor.

主控模块的处理模块控制接口与的图像信号处理模块的控制信号输入接口电信号耦接。The processing module control interface of the main control module is electrically coupled to the control signal input interface of the image signal processing module.

图片采集模块还包含用于去掉模拟图像信号中的噪声的去噪模块。The picture acquisition module also includes a denoising module for removing noise from the analog image signal.

去噪模块的数据信号输入接口与可见光及部分红外波段CCD传感器的数据信号输出接口电信号耦接；去噪模块的控制信号输入接口与主控模块的去噪模块控制接口电信号耦接。The data signal input interface of the denoising module is electrically coupled to the data signal output interface of the visible light and part of the infrared band CCD sensor; the control signal input interface of the denoising module is electrically coupled to the denoising module control interface of the main control module.

本具体实施例中，还设有一个第一限流限压保护模块，用于保护去噪模块不会由于电压或电流过载而烧毁；第一限流限压保护模块的控制接口与去噪模块的控制接口电信号耦接；当去噪模块收到来自第一限流限压保护模块的过载保护信号后，则挂起并报警。In this specific embodiment, a first current-limiting and voltage-limiting protection module is also provided to protect the de-noising module from being burnt due to voltage or current overload; the control interface of the first current- and voltage-limiting protection module and the de-noising module The control interface is coupled to the electrical signal; when the de-noising module receives the overload protection signal from the first current-limiting and voltage-limiting protection module, it suspends and alarms.

需要说明的是，因为CCD传感器获取的是高能量的波长辐射，所以噪声干扰较多，此时的图像电信号为模拟信号，如果不进行去噪，直接进行图像信号处理，则会引入过量的噪声，造成编码误差，使图像质量下降。因此在模拟图像信号环节就对它进行噪声去除。又由于有可能会碰到400度，甚至比400度更高温度的钢坯，此时辐射能量特别巨大，因此使用第一限流限压保护模块，保护去噪模块不至于过载。It should be noted that because the CCD sensor obtains high-energy wavelength radiation, there is a lot of noise interference. At this time, the image electrical signal is an analog signal. If the image signal processing is performed directly without denoising, an excessive amount of noise will be introduced. noise, causing coding errors and degrading image quality. Therefore, the noise is removed in the analog image signal link. And because it is possible to encounter a billet with a temperature of 400 degrees or even higher than 400 degrees, the radiation energy is particularly huge at this time, so the first current limiting and voltage limiting protection module is used to protect the denoising module from overloading.

图片采集模块还包含用于加强图像电信号的高感光增益，并将模拟图像信号转为图像电信号的高感光增益模块；高感光增益模块的数据信号输入接口与去噪模块的数据信号输出接口电信号耦接；高感光增益模块的控制信号输入接口与主控模块的高感光增益模块控制接口电信号耦接；高感光增益模块的数据信号输出接口与图像信号处理模块的数据信号输入接口电信号耦接。The picture acquisition module also includes a high-sensitivity gain module for enhancing the high-sensitivity gain of the image electrical signal and converting the analog image signal into an image electrical signal; the data signal input interface of the high-sensitivity gain module and the data signal output interface of the denoising module Electrical signal coupling; the control signal input interface of the high-sensitivity gain module is electrically coupled to the control interface of the high-sensitivity gain module of the main control module; the data signal output interface of the high-sensitivity gain module is electrically connected to the data signal input interface of the image signal processing module signal coupling.

本具体实施例中，还设有一个第二限流限压保护模块，用于保护高感光增益模块不会由于电压或电流过载而烧毁；第二限流限压保护模块的控制接口与高感光增益模块的控制接口电信号耦接；当高感光增益模块收到来自第二限流限压保护模块的过载保护信号后，则挂起并报警。In this specific embodiment, a second current-limiting and voltage-limiting protection module is also provided, which is used to protect the high-sensitivity gain module from being burned due to voltage or current overload; the control interface of the second current-limiting and voltage-limiting protection module is connected to the high-sensitivity gain module. The control interface of the gain module is coupled with an electrical signal; when the high-sensitivity gain module receives the overload protection signal from the second current-limiting and voltage-limiting protection module, it suspends and alarms.

需要说明的是，经过去除噪声的模拟图像信号，进入高感光增益模块。在该模块中会进行A/D转换，将模拟信号转成数字信号，即图像电信号。同样为了防止辐射能量过载，也要使用第二限流限压保护模块。高感光增益模块是本系统硬件中的重要组成模块。It should be noted that the noise-removed analog image signal enters the high-sensitivity gain module. In this module, A/D conversion will be performed to convert the analog signal into a digital signal, that is, an image electrical signal. Also in order to prevent the overload of radiated energy, a second current-limiting and voltage-limiting protection module should also be used. The high-sensitivity gain module is an important component in the hardware of this system.

还需要说明的是，整个拍摄系统是放置在一个温控防护箱中，为了起到保护、降温的作用，温控防护箱前面有两块光学玻璃窗，两块光学玻璃窗均安装隔热玻璃，因此会造成能量大幅衰减；再加上使用特定波长滤波光学滤光镜，钢坯所发出的过量红外辐射被减弱到合适的同时，也会将我们所需要的可见光能量大幅削弱，如果不使用高感光增益模块，会使整个画面较暗，影响后期的图像处理与识别。这就是高感光增益模块必须存在的原因。It should also be noted that the entire shooting system is placed in a temperature-controlled protective box. In order to protect and cool down, there are two optical glass windows in front of the temperature-controlled protective box. Both optical glass windows are equipped with thermal insulation glass. , so the energy will be greatly attenuated; coupled with the use of specific wavelength filtering optical filters, the excess infrared radiation emitted by the billet will be reduced to a suitable level, and the visible light energy we need will also be greatly weakened. The photosensitive gain module will make the whole picture darker, which will affect the later image processing and recognition. That's why high-sensitivity gain modules must exist.

需要说明的是，本发明的高感光增益模块与微视HK-A5100-GM17高感光增益模块为同款，其最大的特点就是不会将已经被削弱到合适的红外波段(700nm 以上)能量增强，仅增强400-700nm波段的能量。经过该模块的增强，达到可见光波段能量与红外波段能量平衡。It should be noted that the high-sensitivity gain module of the present invention is the same as the Microvision HK-A5100-GM17 high-sensitivity gain module. , which only enhances the energy in the 400-700nm band. Through the enhancement of this module, the energy balance between the visible light band and the infrared band is achieved.

除此之外，该模块还具有自动增益功能，在硬件级达到根据环境光的强弱自动进行补偿，这样就使软件算法部分减轻较大计算压力，而且对光照变化反应速度极快。In addition, the module also has an automatic gain function, which can automatically compensate according to the intensity of ambient light at the hardware level, so that the software algorithm part relieves the large calculation pressure, and the response speed to light changes is extremely fast.

本拍摄系统还包含用于控制本拍摄系统启动拍摄流程的信号触发模块。The shooting system also includes a signal triggering module for controlling the shooting system to start the shooting process.

信号触发模块的触发信号输出接口与主控模块的触发信号输入接口电信号耦接。The trigger signal output interface of the signal trigger module is electrically coupled to the trigger signal input interface of the main control module.

本拍摄系统还包含用于远程通信的网口通信模块。The shooting system also includes a network port communication module for remote communication.

网口通信模块的数据信号输入接口与图像信号处理模块的数据信号输出接口电信号耦接。The data signal input interface of the network port communication module is electrically coupled to the data signal output interface of the image signal processing module.

网口通信模块的控制信号输出接口与主控模块的控制信号输入接口电信号耦接。The control signal output interface of the network port communication module is electrically coupled to the control signal input interface of the main control module.

网口通信模块的数据信号接口与RJ45接口电信号耦接。The data signal interface of the network port communication module is coupled with the RJ45 interface for electrical signals.

本具体实施例中，还包含用于供电的电源供电模块，以及1个复合插头，参数为12V1A、6pin；具体来说，复合插头的供电接口与电源供电模块电耦接，信号输出接口与信号触发模块的信号输入接口电信号耦接。In this specific embodiment, it also includes a power supply module for power supply, and a composite plug with parameters of 12V1A, 6pin; specifically, the power supply interface of the composite plug is electrically coupled to the power supply module, and the signal output interface is connected to the signal The signal input interface of the trigger module is coupled with an electrical signal.

如图6所示，一种高温金属件表面图案拍摄系统的高温金属件表面图案拍摄方法，包含以下步骤：As shown in FIG. 6 , a method for photographing the surface pattern of a high-temperature metal piece of a high-temperature metal piece surface pattern photographing system includes the following steps:

S100.当信号触发模块侦测到有高温金属件经过人工预设的拍摄点的时刻，发出触发信号，并将触发信号发送至主控模块的触发信号输入接口。S100. When the signal trigger module detects that a high-temperature metal piece passes through the manually preset shooting point, it sends out a trigger signal, and sends the trigger signal to the trigger signal input interface of the main control module.

S200.当主控模块侦测到有新进入的触发信号后，则同时向相机传感器模块发出采集控制信号、向去噪模块发出去噪控制信号、向高感光增益模块发出高感光增益控制信号、向图像信号处理模块发出图像信号处理控制信号。S200. When the main control module detects a newly entered trigger signal, it simultaneously sends an acquisition control signal to the camera sensor module, a denoising control signal to the de-noising module, and a high-sensitivity gain control signal to the high-sensitivity gain module. Send an image signal processing control signal to the image signal processing module.

S300.当相机传感器模块侦测到有新进入的采集控制信号后，则透过与自己光学耦合的特定波长滤波光学模块拍摄一帧模拟图像信号，然后将该帧模拟图像信号发送给去噪模块。S300. After the camera sensor module detects a newly entered acquisition control signal, it shoots a frame of analog image signal through a specific wavelength filtering optical module optically coupled with itself, and then sends the frame of analog image signal to the denoising module .

S400.当去噪模块侦测到有新进入的模拟图像信号，且侦测到有新进入的去噪控制信号，则对模拟图像信号进行去噪操作，去掉信号噪声，得到经去噪的模拟电信号，并将经去噪的模拟电信号发送给高感光增益模块。S400. When the denoising module detects a newly entered analog image signal and a newly entered denoising control signal, the denoising operation is performed on the analog image signal to remove the signal noise to obtain a denoised analog signal. electrical signal, and send the denoised analog electrical signal to the high-sensitivity gain module.

S500.当高感光增益模块侦测到有新进入的经去噪的模拟电信号，且侦测到有新进入的高感光增益控制信号，则对经去噪的模拟电信号进行高感光增益操作，得到经去噪且高感光增益的模拟电信号，并对经去噪且高感光增益的模拟电信号进行数模转换，得到图像电信号，然后再对图像电信号进行数字增益，再然后将数字增益后的图像电信号发送给图像信号处理模块。S500. When the high-sensitivity gain module detects a newly entered denoised analog electrical signal, and detects a newly entered high-sensitivity gain control signal, perform a high-sensitivity gain operation on the denoised analog electrical signal , obtain the denoised and high-sensitivity-gain analog electrical signal, and perform digital-to-analog conversion on the denoised and high-sensitivity-gain analog electrical signal to obtain an image electrical signal, and then perform digital gain on the image electrical signal, and then convert the The image electrical signal after digital gain is sent to the image signal processing module.

S600.当图像信号处理模块侦测到有新进入的图像电信号，且侦测到有新进入的图形信号处理控制信号，则将图像电信号转为数字编码电信号，并将数字编码电信号发送给网口通信模块。S600. When the image signal processing module detects a newly entered image electrical signal and detects a newly entered graphic signal processing control signal, the image electrical signal is converted into a digitally encoded electrical signal, and the digitally encoded electrical signal is converted into a digitally encoded electrical signal. Sent to the network port communication module.

在上述的详细描述中，各种特征一起组合在单个的实施方案中，以简化本公开。不应该将这种公开方法解释为反映了这样的意图，即，所要求保护的主题的实施方案需要比清楚地在每个权利要求中所陈述的特征更多的特征。相反，如所附的权利要求书所反映的那样，本发明处于比所公开的单个实施方案的全部特征少的状态。因此，所附的权利要求书特此清楚地被并入详细描述中，其中每项权利要求独自作为本发明单独的优选实施方案。In the foregoing Detailed Description, various features are grouped together in a single embodiment for the purpose of simplifying the disclosure. This method of disclosure should not be interpreted as reflecting an intention that embodiments of the claimed subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, present invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the Detailed Description, with each claim standing on its own as a separate preferred embodiment of this invention.

为使本领域内的任何技术人员能够实现或者使用本发明，上面对所公开实施例进行了描述。对于本领域技术人员来说；这些实施例的各种修改方式都是显而易见的，并且本文定义的一般原理也可以在不脱离本公开的精神和保护范围的基础上适用于其它实施例。因此，本公开并不限于本文给出的实施例，而是与本申请公开的原理和新颖性特征的最广范围相一致。The disclosed embodiments are described above to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit and scope of this disclosure. Thus, the present disclosure is not intended to be limited to the embodiments set forth herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

上文的描述包括一个或多个实施例的举例。当然，为了描述上述实施例而描述部件或方法的所有可能的结合是不可能的，但是本领域普通技术人员应该认识到，各个实施例可以做进一步的组合和排列。因此，本文中描述的实施例旨在涵盖落入所附权利要求书的保护范围内的所有这样的改变、修改和变型。此外，就说明书或权利要求书中使用的术语“包含”，该词的涵盖方式类似于术语“包括”，就如同“包括，”在权利要求中用作衔接词所解释的那样。此外，使用在权利要求书的说明书中的任何一个术语“或”是要表示“非排它性的或者”。The above description includes examples of one or more embodiments. Of course, it is not possible to describe all possible combinations of components or methods in order to describe the above embodiments, but one of ordinary skill in the art will recognize that further combinations and permutations of the various embodiments are possible. Accordingly, the embodiments described herein are intended to cover all such changes, modifications and variations that fall within the scope of the appended claims. Furthermore, with respect to the term "comprising," as used in the specification or claims, the word is encompassed in a manner similar to the term "comprising," as if "comprising," were construed as a conjunction in the claims. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or."

以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The specific embodiments described above further describe the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

最后，应当指出，以上实施例仅是本发明较有代表性的例子。显然，本发明不限于上述实施例，还可以有许多变形。凡是依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化及修饰，均应认为属于本发明的保护范围。Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above-mentioned embodiments, and many modifications are possible. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention shall be considered to belong to the protection scope of the present invention.

在此，需要说明的是，上述技术方案的描述是示例性的，本说明书可以以不同形式来体现，并且不应被解释为限于本文阐述的技术方案。相反，提供这些说明将使得本发明公开将是彻底和完整的，并且将向本领域技术人员充分传达本说明书所公开的范围。此外，本发明的技术方案仅由权利要求的范围限定。Here, it should be noted that the descriptions of the above technical solutions are exemplary, and this specification may be embodied in different forms, and should not be construed as being limited to the technical solutions set forth herein. Rather, these descriptions are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Furthermore, the technical solutions of the present invention are limited only by the scope of the claims.

用于描述本说明书和权利要求的各方面公开的形状、尺寸、比率、角度和数字仅仅是示例，因此，本说明书和权利要求的不限于所示出的细节。在以下描述中，当相关的已知功能或配置的详细描述被确定为不必要地模糊本说明书和权利要求的重点时，将省略详细描述。The disclosed shapes, dimensions, ratios, angles and numbers used to describe various aspects of the specification and claims are merely examples and, therefore, the specification and claims are not limited to the details shown. In the following description, when a detailed description of a related known function or configuration is determined to unnecessarily obscure the gist of the specification and claims, the detailed description will be omitted.

在使用本说明书中描述的“包括”、“具有”和“包含”的情况下，除非使用否则还可以具有另一部分或其他部分，所用的术语通常可以是单数但也可以表示复数形式。Where "including", "having" and "comprising" are used as described in this specification, unless otherwise used, there may be another part or other parts, and the terms used may generally be singular but may also refer to the plural.

应该指出，尽管在本说明书可能出现并使用术语“第一”、“第二”、“顶部”、“底部”、“一侧”、“另一侧”、“一端”、“另一端”等来描述各种不同的组件，但是这些成分和部分不应受这些术语的限制。这些术语仅用于区分一个成分和部分和另一个成分和部分。例如，在不脱离本说明书的范围的情况下，第一部件可以被称为第二部件，并且类似地，第二部件可以被称为第一部件，顶部和底部的部件在一定情况下，也可以彼此对调或转换；一端和另一端的部件可以彼此性能相同或者不同。It should be noted that although the terms "first", "second", "top", "bottom", "one side", "the other side", "one end", "the other end", etc. may appear and be used in this specification to describe various components, but these components and parts should not be limited by these terms. These terms are only used to distinguish one component and part from another. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the scope of this specification, and the top and bottom components would also be They can be reversed or converted to each other; components on one end and the other can perform the same or different from each other.

此外，在构成部件时，尽管没有其明确的描述，但可以理解必然包括一定的误差区域。In addition, in the construction of components, although there is no explicit description thereof, it is understood that certain error regions are necessarily included.

在描述位置关系时，例如，当位置顺序被描述为“在...上”、“在...上方”、“在...下方”和“下一个”时，除非使用“恰好”或“直接”这样的词汇或术语，此外则可以包括它们之间不接触或者接触的情形。如果提到第一元件位于第二元件“上”，则并不意味着在图中第一元件必须位于第二元件的上方。所述部件的上部和下部会根据观察的角度和定向的改变而改变。因此，在附图中或在实际构造中，如果涉及了第一元件位于第二元件“上”的情况可以包括第一元件位于第二元件“下方”的情况以及第一元件位于第二元件“上方”的情况。在描述时间关系时，除非使用“恰好”或“直接”，否则在描述“之后”、“后续”、“随后”和“之前”时，可以包括步骤之间并不连续的情况。本发明的各种实施方案的特征可以部分地或全部地彼此组合或者拼接，并且可以如本领域技术人员可以充分理解的以各种不同地构造来执行。本发明的实施方案可以彼此独立地执行，或者可以以相互依赖的关系一起执行。When describing a positional relationship, for example, when the positional sequence is described as "on," "above," "below," and "next," unless "exactly" or "next" is used Words or terms such as "directly" may also include situations in which they are not in contact or in contact with each other. If it is mentioned that a first element is "on" a second element, it does not mean that the first element must be on the second element in the figures. The upper and lower parts of the components will change depending on the viewing angle and orientation. Thus, in the drawings or in actual construction, references to a first element being "on" a second element may include that the first element is "below" the second element as well as the first element being "on" the second element above". When describing a temporal relationship, unless "just" or "directly" is used, when describing "after", "subsequent", "subsequently" and "before", discontinuities between steps may be included. The features of the various embodiments of the present invention may be combined or spliced with each other, in part or in whole, and may be implemented in various configurations as will be well understood by those skilled in the art. Embodiments of the present invention may be performed independently of each other or may be performed together in an interdependent relationship.

Claims (9)

1. The utility model provides a high temperature metalwork surface pattern camera system which characterized in that: the system comprises the following modules:

the specific wavelength filtering optical module is used for partially filtering infrared radiation energy emitted outwards by the high-temperature metal piece;

the image acquisition module is used for shooting an analog image signal of the high-temperature metal piece, infrared radiation energy of which is filtered out by the specific wavelength filtering optical module, and converting the analog image signal into an image electric signal;

the picture acquisition module comprises a camera sensor module for shooting the analog image signal;

the wavelength-specific filtering optical module is optically coupled with the camera sensor module;

the image signal processing module is used for converting the image electric signal into a digital coding electric signal; the digital coding electric signal is the final output result of the shooting system.

2. The system of claim 1, wherein the pattern on the surface of the high temperature metal part is captured by: the specific wavelength filtering optical module is a filter, and the performance parameters are as follows: the wave band is 400nm-800 nm.

3. The system of claim 2, wherein the system comprises: the camera sensor module is a visible light and partial infrared band CCD sensor, and the performance parameters are as follows: the peak response is at 730nm and the quantum efficiency is 85%.

4. The system of claim 3, wherein the pattern on the surface of the high-temperature metal part is captured by: the shooting system also comprises a main control module used for controlling the shooting system; wherein:

the sensor control interface of the main control module is electrically coupled with the control signal input interface of the visible light and partial infrared band CCD sensor;

and the processing module control interface of the main control module is electrically coupled with the control signal input interface of the image signal processing module.

5. The system of claim 4, wherein the pattern on the surface of the high-temperature metal part is captured by: the picture acquisition module also comprises a denoising module for removing noise in the analog image signal;

a data signal input interface of the denoising module is electrically coupled with a data signal output interface of the visible light and partial infrared band CCD sensor; and the control signal input interface of the denoising module is electrically coupled with the denoising module control interface of the main control module.

6. The system of claim 5, wherein the pattern on the surface of the high-temperature metal part is captured by the camera: the image acquisition module also comprises a high photosensitive gain module which is used for enhancing the high photosensitive gain of the analog image signal, converting the analog image signal into the image electric signal and then performing digital gain on the image electric signal;

the data signal input interface of the high photosensitive gain module is electrically coupled with the data signal output interface of the denoising module; the control signal input interface of the high photosensitive gain module is electrically coupled with the control interface of the high photosensitive gain module of the main control module; and the data signal output interface of the high photosensitive gain module is electrically coupled with the data signal input interface of the image signal processing module.

7. The system of claim 6, wherein the pattern on the surface of the high-temperature metal part is captured by: the shooting system also comprises a signal triggering module used for controlling the shooting system to start a shooting process;

and the trigger signal output interface of the signal trigger module is electrically coupled with the trigger signal input interface of the main control module.

8. The system of claim 6, wherein the pattern on the surface of the high-temperature metal part is captured by: the system also comprises an internet access communication module for remote communication;

the data signal input interface of the network port communication module is electrically coupled with the data signal output interface of the image signal processing module;

the control signal output interface of the network port communication module is electrically coupled with the control signal input interface of the main control module;

and the data signal interface of the network port communication module is electrically coupled with the RJ45 interface.

9. A high-temperature metal piece surface pattern shooting method using the high-temperature metal piece surface pattern shooting system according to claim 8, wherein: comprises the following steps:

s100, when the signal trigger module detects that a high-temperature metal piece passes through a manually preset shooting point, sending a trigger signal and sending the trigger signal to a trigger signal input interface of the main control module;

s200, when the main control module detects the newly entered trigger signal, simultaneously sending an acquisition control signal to the camera sensor module, sending a denoising control signal to the denoising module, sending a high photosensitive gain control signal to the high photosensitive gain module, and sending an image signal processing control signal to the image signal processing module;

s300, when the camera sensor module detects the newly entered acquisition control signal, shooting a frame of analog image signal through the specific wavelength filtering optical module optically coupled with the camera sensor module, and then sending the frame of analog image signal to the denoising module;

s400, when the de-noising module detects the newly entered analog image signal and the de-noising control signal, performing de-noising operation on the analog image signal, removing signal noise to obtain a de-noised analog electric signal, and sending the de-noised analog electric signal to the high-photosensitive gain module;

s500, when the high photosensitive gain module detects a newly entered denoised analog electric signal and the newly entered high photosensitive gain control signal, performing high photosensitive gain operation on the denoised analog electric signal to obtain a denoised analog electric signal with high photosensitive gain, performing digital-to-analog conversion on the denoised analog electric signal with high photosensitive gain to obtain an image electric signal, performing digital gain on the image electric signal, and sending the digitally-gained image electric signal to the image signal processing module;

s600, when the image signal processing module detects a newly entered image electric signal and detects the newly entered image signal processing control signal, converting the image electric signal into the digital coding electric signal and sending the digital coding electric signal to the internet access communication module.

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