阅读说明：本技术 多传感器融合的超导体失超检测预警系统 (Superconductor quench detection early warning system with multi-sensor fusion ) 是由 姜海明 张子旭 谢康 夏宏燕 申方成 彭迪 于 2020-08-18 设计创作，主要内容包括：本发明公开了一种多传感器融合的超导体失超检测预警系统,包括图像采集模块、失超检测模块和预警模块；图像采集模块用于采集被检测区域的可见光图像和红外图像；失超检测模块用于根据红外图像对超导电力设备的运行状态进行分析,在超导电力设备发生失超时输出预警指令,并将红外图像与可见光图像进行融合；预警模块用于在接收到预警指令后控制被检测区域内的报警器发出预警信号。本发明通过设置图像采集模块,可将超导电力设备的失超过程可视化,具有较强的抗电磁干扰能力,由于采用了多传感器融合的方式将可见光图像与红外图像进行融合,不仅提高了失超检测准确率,还可对失超部位进行精确定位。(The invention discloses a superconductor quench detection early warning system with multi-sensor fusion, which comprises an image acquisition module, a quench detection module and an early warning module; the image acquisition module is used for acquiring visible light images and infrared images of the detected area; the quench detection module is used for analyzing the running state of the superconducting power equipment according to the infrared image, outputting an early warning instruction when the superconducting power equipment quenches, and fusing the infrared image and the visible light image; the early warning module is used for controlling an alarm in the detected area to send out an early warning signal after receiving the early warning instruction. The image acquisition module is arranged, so that the quenching process of the superconducting power equipment can be visualized, the anti-electromagnetic interference capability is strong, and the visible light image and the infrared image are fused in a multi-sensor fusion mode, so that the quenching detection accuracy is improved, and the quenching part can be accurately positioned.)

1. A superconductor quench detection early warning system with multi-sensor fusion is characterized by comprising an image acquisition module, a quench detection module and an early warning module;

the image acquisition module, the quench detection module and the early warning module are sequentially connected;

the image acquisition module is used for acquiring visible light images and multi-frame infrared images of the detected area;

the quench detection module is used for analyzing the running state of the superconducting power equipment according to the collected infrared image, outputting an early warning instruction when the superconducting power equipment quenches, and fusing the infrared image and the visible light image;

and the early warning module is used for controlling an alarm in the detected area to send out an early warning signal after receiving the early warning instruction.

2. The multi-sensor fused superconductor quench detection and early warning system of claim 1, wherein the quench detection module comprises an image preprocessing unit, an image feature extraction unit, an image fusion unit and an abnormality diagnosis unit;

the image preprocessing unit is used for preprocessing the acquired infrared image;

the image feature extraction unit is used for determining an abnormal temperature point on the superconducting power equipment from the preprocessed front and rear frames of infrared images and extracting the infrared temperature feature of the abnormal temperature point;

the image fusion unit is used for fusing the infrared image and the visible light image which are processed by the image preprocessing unit and the image feature extraction unit;

the abnormality diagnosis unit is used for comparing the extracted infrared temperature characteristics with a set threshold value so as to judge whether the superconducting power equipment is quenched or not and outputting an early warning instruction to the early warning module when the quenching is quenched.

3. The multi-sensor fused superconductor quench detection and early warning system of claim 2, wherein the quench detection module further comprises an image acquisition card;

the image acquisition card is used for performing digital conversion on the infrared image and the visible light image acquired by the image acquisition module to form digital image information which can be processed by the image preprocessing unit.

4. The multi-sensor fused superconductor quench detection early warning system of claim 2, wherein the quench detection module further comprises a storage unit and an image viewing unit;

the storage unit is used for storing the fused image;

the image viewing unit is used for responding to an image viewing request of a user and outputting the fused image stored in the storage unit.

5. The multi-sensor fused superconductor quench detection and early warning system of claim 2, wherein the image preprocessing unit comprises an image denoising subunit, an image enhancer unit and an image segmentation subunit;

the image denoising subunit is used for carrying out filtering denoising processing on the acquired infrared image;

the image enhancer unit is used for carrying out image enhancement processing on the infrared image subjected to filtering and denoising processing so as to distinguish a superconducting power equipment region from a background region;

the image segmentation subunit is used for carrying out edge detection on the superconducting power equipment region on the infrared image after the image enhancement processing, and segmenting the superconducting power equipment region.

6. The multi-sensor fused superconductor quench detection early warning system of claim 2, wherein the anomaly diagnosis unit comprises an anomaly diagnosis subunit and an early warning instruction generation subunit;

the abnormality diagnosis subunit is configured to compare the extracted infrared temperature characteristic with a set threshold value, so as to determine whether the superconducting power device is quenched;

and the early warning instruction generating subunit is used for generating an early warning instruction and outputting the early warning instruction to the early warning module when the occurrence of the loss timeout is judged.

7. The multi-sensor fused superconductor quench detection pre-warning system of claim 1, wherein the alarm comprises an audible alarm and/or a light alarm.

8. The multi-sensor fused superconductor quench detection and early warning system of claim 1, wherein the image acquisition module is a camera.

Technical Field

The embodiment of the invention relates to the technical field of power automation control, in particular to a superconductor quench detection early warning system with multi-sensor fusion.

Background

The power industry, as a supporting industry of national economy, will be a powerful point of the development of superconducting technology, and the application of superconducting technology to a power system can reduce the loss during power transmission and improve the stability.

However, in the development process of the superconducting technology, the occurrence of the quench phenomenon hinders the popularization and application of the superconducting technology, so that how to rapidly detect the occurrence of the quench and determine the quench position becomes a problem to be solved urgently in the field, and the method determines whether the superconducting technology can be popularized and applied in a power system on a large scale, and has important practical significance.

The existing quench detection methods mainly include voltage signal detection, pressure signal detection, flow rate signal detection, ultrasonic detection, optical fiber detection and other methods, which can realize rapid detection of quench occurrence, but all have certain defects, such as low sensitivity, incapability of rapidly determining quench position, poor anti-interference capability to external electromagnetic noise, poor real-time performance and the like.

Therefore, there is a need in the art to develop a method that can achieve quench detection without the above-mentioned drawbacks.

Disclosure of Invention

The invention provides a superconductor quench detection early warning system with multi-sensor fusion, which aims to overcome the defects of the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a superconductor quench detection early warning system with multi-sensor fusion comprises an image acquisition module, a quench detection module and an early warning module;

the image acquisition module, the quench detection module and the early warning module are sequentially connected;

the image acquisition module is used for acquiring visible light images and multi-frame infrared images of the detected area;

the quench detection module is used for analyzing the running state of the superconducting power equipment according to the collected infrared image, outputting an early warning instruction when the superconducting power equipment quenches, and fusing the infrared image and the visible light image;

and the early warning module is used for controlling an alarm in the detected area to send out an early warning signal after receiving the early warning instruction.

Furthermore, in the superconductor quench detection early warning system with the multi-sensor fusion, the quench detection module comprises an image preprocessing unit, an image feature extraction unit, an image fusion unit and an abnormality diagnosis unit;

the image preprocessing unit is used for preprocessing the acquired infrared image;

the image feature extraction unit is used for determining an abnormal temperature point on the superconducting power equipment from the preprocessed front and rear frames of infrared images and extracting the infrared temperature feature of the abnormal temperature point;

the image fusion unit is used for fusing the infrared image and the visible light image which are processed by the image preprocessing unit and the image feature extraction unit;

the abnormality diagnosis unit is used for comparing the extracted infrared temperature characteristics with a set threshold value so as to judge whether the superconducting power equipment is quenched or not and outputting an early warning instruction to the early warning module when the quenching is quenched.

Furthermore, in the superconductor quench detection early warning system with the multi-sensor fusion, the quench detection module further comprises an image acquisition card;

the image acquisition card is used for performing digital conversion on the infrared image and the visible light image acquired by the image acquisition module to form digital image information which can be processed by the image preprocessing unit.

Furthermore, in the superconductor quench detection early warning system with the multi-sensor fusion, the quench detection module further comprises a storage unit and an image viewing unit;

the storage unit is used for storing the fused image;

the image viewing unit is used for responding to an image viewing request of a user and outputting the fused image stored in the storage unit.

Further, in the multi-sensor fused superconductor quench detection and early warning system, the image preprocessing unit comprises an image denoising subunit, an image enhancement subunit and an image segmentation subunit;

the image denoising subunit is used for carrying out filtering denoising processing on the acquired infrared image;

the image enhancer unit is used for carrying out image enhancement processing on the infrared image subjected to filtering and denoising processing so as to distinguish a superconducting power equipment region from a background region;

the image segmentation subunit is used for carrying out edge detection on the superconducting power equipment region on the infrared image after the image enhancement processing, and segmenting the superconducting power equipment region.

Further, in the superconductor quench detection early warning system with the multi-sensor fusion, the abnormality diagnosis unit comprises an abnormality diagnosis subunit and an early warning instruction generation subunit;

the abnormality diagnosis subunit is configured to compare the extracted infrared temperature characteristic with a set threshold value, so as to determine whether the superconducting power device is quenched;

and the early warning instruction generating subunit is used for generating an early warning instruction and outputting the early warning instruction to the early warning module when the occurrence of the loss timeout is judged.

Further, in the multi-sensor fused superconductor quench detection early warning system, the alarm comprises a sound alarm and/or a light alarm.

Furthermore, in the superconductor quench detection early warning system with the multi-sensor fusion, the image acquisition module is a camera.

According to the superconductor quench detection early warning system with the multi-sensor fusion, the operation state of the superconducting power equipment can be known in real time through the real-time infrared image and the visible light image of the superconducting power equipment, which are acquired by the image acquisition module arranged in the detected area, compared with other detection methods, the superconductor quench detection early warning system has stronger anti-electromagnetic interference capability, can visualize the quench process of the superconducting power equipment, and provides a powerful basis for further analyzing quench reasons and quench propagation characteristics.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a functional block diagram of a multi-sensor fused superconductor quench detection early warning system according to an embodiment of the present invention;

FIG. 2 is a functional block diagram of a multi-sensor fused superconductor quench detection early warning system according to an embodiment of the present invention;

fig. 3 is a functional block diagram of a multi-sensor-fused superconductor quench detection early warning system according to a third embodiment of the present invention.

Reference numerals:

the system comprises an image acquisition module 1, a quench detection module 2 and an early warning module 3;

an image preprocessing unit 21, an image feature extraction unit 22, an image fusion unit 23, and an abnormality diagnosis unit 24;

an image denoising subunit 211, an image enhancement subunit 212, an image segmentation subunit 213;

an abnormality diagnosis subunit 241, an early warning instruction generation subunit 242.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.