Line abnormality snapshot device and system
The line anomaly capture device, powered by photovoltaic modules and triggered by high-frequency current sensors, solves the problems of real-time performance and accuracy in overhead line inspection, and achieves efficient image acquisition and identification of faults and potential hazards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RESOURCES WIND POWER (YICHENG) CO LTD
- Filing Date
- 2025-03-21
- Publication Date
- 2026-05-29
AI Technical Summary
In existing technologies, the real-time performance and accuracy of overhead line inspections are insufficient, making it difficult to capture instantaneous images of faults or potential defects in a timely manner, resulting in image data redundancy and low recognition efficiency.
The line anomaly capture device powered by photovoltaic modules collects abnormal current signals through a high-frequency current sensor, triggers the camera to capture images in real time, and combines multiple camera resolution adjustments to achieve efficient image acquisition of faults and potential hazards.
It improves the real-time capture capability of overhead line faults and potential defects, reduces image data redundancy, and enhances recognition accuracy and processing efficiency.
Smart Images
Figure CN224305846U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power transmission line safety protection technology, and in particular to a line anomaly capture device and system. Background Technology
[0002] The collector line in a wind farm is the transmission line connecting the wind turbine generators and the substation. Its core task is to efficiently collect the electrical energy generated by the wind turbine generators and safely transmit it to the booster station, and finally to the power grid. In the overall operation of a wind farm, the collector line plays a crucial role and is an indispensable key link in ensuring the stable operation of the wind farm.
[0003] The main types of power collection lines for wind farms are direct-buried cables and overhead lines. Among these two types, direct-buried cables are relatively more expensive, while overhead lines are widely used in wind farm power collection lines due to their low cost, good safety, and high reliability.
[0004] In related technologies, the condition inspection of overhead lines was initially carried out manually on a regular basis. However, with the development and advancement of visualization imaging technology, video / image capture of overhead lines is gradually replacing manual inspection. Currently, the most commonly used overhead line image acquisition devices are drones equipped with cameras and pole-mounted visualization acquisition devices.
[0005] For the former, using drones for inspections, the limited operating range often necessitates human intervention for data collection, making it a periodic inspection method with poor real-time performance. For the latter, installing visualization devices on poles, data collection typically involves two methods: on-the-spot shooting and timed shooting. On-the-spot shooting requires uploading a large amount of image data, and since wireless signals are mostly used in the field, high image quality leads to increased communication costs. Furthermore, too much invalid image data can cause excessive redundancy in the image recognition module, resulting in reduced image processing efficiency and recognition accuracy. Timed shooting, similar to drone inspections, struggles to capture timely moments of faults or defects in overhead lines, resulting in poor real-time performance. Utility Model Content
[0006] This application proposes a line anomaly capture device and system for capturing on-site images of overhead lines at the moment an anomaly occurs.
[0007] To achieve the above objectives, this application adopts the following technical solution:
[0008] In a first aspect, a line anomaly capture device is provided, comprising a photovoltaic module, a power supply module, a high-frequency current sensor, and an image acquisition module. The power supply module is mounted on the back of the photovoltaic module and is used to charge the power supply module. The power supply module also powers the image acquisition module. The high-frequency current sensor transmits the acquired induced current signal to the image acquisition module via a signal transmission line. The image acquisition module includes a comparator and a first camera. The comparator determines whether the amplitude of the induced current signal exceeds a preset threshold, and if the amplitude exceeds the preset threshold, sends a capture trigger signal to the first camera. The first camera takes an image in response to the capture trigger signal.
[0009] Furthermore, the image acquisition module also includes a second camera; the second camera is used to take pictures after the first camera takes pictures, and the resolution of the image captured by the second camera is higher than the resolution of the image captured by the first camera.
[0010] Furthermore, the image acquisition module also includes a third camera; the third camera is used to take pictures based on a preset period.
[0011] Furthermore, the photovoltaic module, the high-frequency current sensor, and the image acquisition module are fixed by a fixed steel frame; the fixed steel frame includes a shaft column and a vertical column, with the first end of the vertical column welded to the shaft column; the photovoltaic module is fixed to the first end of the shaft column, and the image acquisition module is fixed to the second end of the shaft column; the high-frequency current sensor is fixed to the vertical column by an annular pressure plate and fixing bolts, and the high-frequency current sensor is perpendicular to the vertical column.
[0012] Furthermore, a telescopic shaft is provided at the second end of the plumb column, and a hanger is provided at the end of the telescopic shaft; the telescopic shaft is fixed to the second end of the plumb column by multiple adjusting bolts.
[0013] Furthermore, a direction adjustment seat is provided at the second end of the shaft column. The image acquisition module is fixed on the direction adjustment seat by a mounting plate. The direction adjustment seat is used to realize the rotation of the image acquisition module in the horizontal direction.
[0014] Furthermore, the lines connecting to the image acquisition module are fixedly connected via explosion-proof connectors.
[0015] Furthermore, the image acquisition module also includes a control processing module, a power management module, a data storage module, a clock module, and a wireless transmission module; the wireless transmission module is used to receive control commands and transmit images captured by the image acquisition module.
[0016] Secondly, a line anomaly capture system is provided, including the line anomaly capture device as described above and an image processing system; the image processing system includes a communication module, which is used to receive images sent by the line anomaly capture device.
[0017] Furthermore, the image processing system also includes an image processing module, an image recognition module, an image display module, an instruction issuing module, and an image storage module. The image processing module is used to read image data from the communication module and perform sharpness detection on the image data to determine usable image data. The image recognition module is used to filter the usable image data and determine image data with line anomalies. The image display module is used to display image data with line anomalies. The image display module is also used to send corresponding control instructions to the instruction issuing module in response to user operations. The instruction issuing module is used to digitize the control instructions and send them to the communication module. The image storage module is used to store image data with line anomalies.
[0018] In related research, when overhead lines experience abnormal conditions such as faults or potential defects, abnormal high-frequency current signals will propagate along both ends of the overhead line in the space surrounding the fault / absence point. In the line anomaly capture device provided in this application, the power supply to the image acquisition module is ensured by a photovoltaic module and a power supply module. The abnormal battery signals appearing around the overhead line are collected by a high-frequency current sensor and converted into induced current signals, which are then sent to the image acquisition module. When the comparator in the image acquisition module determines that the amplitude of the induced current signal is greater than a preset threshold, the first camera is triggered to capture an image, thereby realizing the acquisition of images of the overhead line at the moment an anomaly occurs, and improving the real-time capture capability of overhead line faults / defects. Attached Figure Description
[0019] Figure 1 A schematic diagram of the structure of a line anomaly capture device provided for an embodiment of this application;
[0020] Figure 2 A partial structural schematic diagram of a line anomaly capture device provided for an embodiment of this application;
[0021] Figure 3 A schematic diagram of a line anomaly capture system provided for an embodiment of this application;
[0022] Figure label:
[0023] Line abnormality capture device 100, photovoltaic module 1, power module 2, charging cable 3, power supply cable 3', adjusting bolt 4, shaft column 5, plumb column 6, high frequency current sensor 7, annular pressure plate 8, fixing bolt 9, signal output line 10, telescopic shaft 11, bracket 12, adjusting bolt 13, direction adjustment seat 14, adjusting bolt 15, mounting plate 16, adjusting bolt 17, fixing bolt 18, image acquisition module 19, explosion-proof connector 20. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Furthermore, it should be understood that the specific embodiments described herein are merely for explaining this application and are not intended to limit this application.
[0025] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0030] This application discloses a line anomaly capture device, including a photovoltaic module, a power supply module, a high-frequency current sensor, and an image acquisition module. The power supply module is mounted on the back of the photovoltaic module and is used to charge the power supply module. The power supply module also powers the image acquisition module. The high-frequency current sensor transmits the acquired induced current signal to the image acquisition module via a signal transmission line. The image acquisition module includes a comparator and a first camera. The comparator determines whether the amplitude of the induced current signal exceeds a preset threshold, and if the amplitude exceeds the preset threshold, sends a capture trigger signal to the first camera. The first camera takes a picture in response to the capture trigger signal.
[0031] In related research, when overhead lines experience abnormal conditions such as faults or potential defects, abnormal high-frequency current signals will propagate along both ends of the overhead line in the space surrounding the fault / absence point. In the line anomaly capture device provided in this application, the power supply to the image acquisition module is ensured by a photovoltaic module and a power supply module. The abnormal battery signals appearing around the overhead line are collected by a high-frequency current sensor and converted into induced current signals, which are then sent to the image acquisition module. When the comparator in the image acquisition module determines that the amplitude of the induced current signal is greater than a preset threshold, the first camera is triggered to capture an image, thereby realizing the acquisition of images of the overhead line at the moment an anomaly occurs, and improving the real-time capture capability of overhead line faults / defects.
[0032] Example 1
[0033] Figure 1 A schematic diagram of a line anomaly capture device is shown, wherein the line anomaly capture device 100 includes a photovoltaic module 1, a power supply module 2, a high-frequency current sensor 7, and an image acquisition module 19.
[0034] like Figure 1 As shown, the power module 2 is installed on the back of the photovoltaic module 1. The power module 2 can be installed by means of clip fixing, bolt fixing, welding fixing, etc.
[0035] For example, photovoltaic module 1 consists of solar panels used to convert light energy into electrical energy to continuously charge power module 2.
[0036] Power module 2 is a lithium battery used to store the electrical energy input from photovoltaic module 1 and to continuously power image acquisition module 19.
[0037] It should be noted that photovoltaic module 1 and power module 2 are connected via, as shown in the example below. Figure 1 The charging cable 3 shown in the figure enables electrical connection, and the power module 2 and the image acquisition module 19 are connected via a method such as... Figure 1 The power supply line 3' shown in the figure enables electrical connection.
[0038] High-frequency current sensor 7 is used to transmit current through, for example, Figure 1 The signal output line 10 shown in the figure sends the acquired induced current signal to the image acquisition module 19.
[0039] Understandably, when an overhead line experiences a fault or defect, an abnormal high-frequency current signal will appear in the space around the fault / absence point and propagate along both ends of the overhead line. In this way, the abnormal battery signal appearing around the overhead line can be collected by the high-frequency current sensor 7 and converted into an induced current signal, which is then sent to the image acquisition module 19. This enables real-time shooting at the moment when the overhead line experiences an abnormal state, ensuring the real-time nature of the image data.
[0040] The image acquisition module 19 includes a comparator and a first camera.
[0041] The comparator determines whether the amplitude of the induced current signal is greater than a preset threshold, and sends a capture trigger signal to the first camera if the amplitude of the induced current signal is greater than the preset threshold. The first camera then takes a picture in response to the capture trigger signal to obtain an image of the overhead line.
[0042] The first camera is a fast camera, used to capture instantaneous faults and potential hazards in overhead power lines, such as lightning strikes, bird nests, tree wires, hanging objects, and wildfires.
[0043] It should be noted that the preset threshold can be set in advance by the operation and maintenance personnel in the line abnormality capture device, taking into account the discharge characteristics of potential hazards and faults of overhead lines. For example, it can be set to 1A to 5A. This application embodiment does not make specific limitations on this.
[0044] In some embodiments, the image acquisition module 19 further includes a second camera.
[0045] The second camera is used to take pictures after the first camera takes pictures, so as to obtain on-site images of the overhead lines.
[0046] It should be noted that the image resolution of the second camera is higher than that of the first camera. That is, the first camera is used for quick on-site capture of overhead lines, while the second camera is used to achieve high-resolution images of the overhead lines, facilitating subsequent analysis of any abnormal conditions at the overhead lines.
[0047] The second camera is a high-speed camera, used to achieve high-resolution presentation of detailed images of overhead lines, which helps to improve the accuracy of identifying potential faults / defects in overhead lines.
[0048] In some embodiments, the image acquisition module 19 further includes a third camera.
[0049] The third camera is used to take pictures at a preset period to obtain on-site images of the overhead lines.
[0050] It should be noted that the preset period can be set in advance by the operation and maintenance personnel in the line anomaly capture device. For example, the preset period can be 30 minutes, 2 hours, 1 day, etc. This application embodiment does not make specific limitations on this.
[0051] Understandably, by setting up a third camera to take pictures at a preset period, it can help maintenance personnel to grasp the operating status of overhead lines and analyze the anomalies when they occur.
[0052] In some embodiments, the photovoltaic module 1, the high-frequency current sensor 7, and the image acquisition module 19 are fixed by a fixed steel frame; such as Figure 1 As shown, the fixed steel frame includes a shaft column 5 and a plumb column 6, and the first end of the plumb column 6 is welded to the shaft column 5.
[0053] like Figure 1 As shown, the photovoltaic module 1 is fixed at the first end of the shaft column 5, and the photosensitive surface of the photovoltaic module 1 can be adjusted left, right and up and down by adjusting the adjusting bolt 4 to maximize the reception of light and ensure the power generation efficiency of the photovoltaic module 1.
[0054] The image acquisition module 19 is fixed to the second end of the shaft column 5.
[0055] like Figure 1 As shown, the second end of the shaft column 5 is provided with a direction adjustment seat 14, and the horizontal rotation direction of the direction adjustment seat can be controlled by adjusting the bolt 15.
[0056] The direction adjustment seat 14 and the mounting plate 16 are fixed together by adjusting bolts 17, and the mounting plate 16 is as follows: Figure 2As shown, the image acquisition module 19 is fixed to the direction adjustment seat 14 by fixing bolt 18, thereby fixing the image acquisition module 19 to the direction adjustment seat 14. The image acquisition module can be rotated in the horizontal direction by rotating the direction adjustment seat in the horizontal direction, so as to adjust the shooting angle of the image acquisition module 19.
[0057] In some embodiments, the image acquisition module 19 is connected to two lines: a power supply line 3' connected to the power supply module 2, and a signal output line 10 connected to the high-frequency current sensor 7. For example... Figure 1 As shown, the line connecting to the image acquisition module 19 is fixedly connected via an explosion-proof connector 20.
[0058] In some embodiments, such as Figure 1 As shown, the high-frequency current sensor 7 is fixed to the vertical column 6 by the annular pressure plate 8 and the fixing bolt 9, and the high-frequency current sensor 7 and the vertical column 6 are perpendicular to each other.
[0059] In some embodiments, such as Figure 1 As shown, a telescopic shaft 11 is provided at the second end of the vertical column 6, and a bracket 12 is provided at the end of the telescopic shaft 11.
[0060] The telescopic shaft 11 is fixed to the second end of the vertical column 6 by multiple adjusting bolts 13. In this way, the length of the telescopic shaft 11 can be controlled by multiple adjusting bolts 13, thereby controlling the outward extension distance of the bracket 12, which facilitates the installation and fixing of the bracket.
[0061] In some embodiments, the image acquisition module 19 further includes a control processing module, a power management module, a data storage module, a clock module, and a wireless transmission module.
[0062] The control and processing module is used to control the data of various functional modules such as acquisition, processing, packaging, and command issuance.
[0063] The power management module is used to regulate power consumption. It operates at high power during image data acquisition and at low power under normal conditions. This module is connected to the power module and the photovoltaic module in sequence.
[0064] The data storage module is used to store image data and has a self-cleaning function, automatically deleting images after they are uploaded to save storage space.
[0065] The clock module can use a BeiDou clock module to provide a precise clock for the image data.
[0066] The wireless transmission module is used to receive control commands and transmit images captured by the image acquisition module.
[0067] Example 2
[0068] Figure 3 A schematic diagram of a line anomaly capture system is shown, wherein the line anomaly capture system includes the line anomaly capture device as described in Embodiment 1 above and an image processing system.
[0069] It should be noted that the image processing system is located in the ground monitoring center and is used to receive image data uploaded by the line anomaly capture device. It can process, identify, display, store and issue instructions for the image data, thereby improving the efficiency of image data processing and the accuracy of identifying line faults / defects.
[0070] The image processing system includes a communication module, which is used to receive image data sent by the line anomaly capture device.
[0071] In addition, the image processing system also includes an image processing module, an image recognition module, an image display module, an instruction issuing module, and an image storage module.
[0072] The image processing module is used to read image data from the communication module, perform sharpness detection on the image data, and determine the usable image data.
[0073] The image recognition module is used to filter available image data and identify image data with line anomalies.
[0074] The image display module is used to display image data indicating a line fault.
[0075] The image display module is also used to send corresponding control commands to the command issuing module in response to user operations.
[0076] The instruction issuing module is used to digitize control instructions and send them to the communication module.
[0077] The image storage module is used to store image data of line faults.
[0078] It is understood that in the line anomaly capture system provided in this application embodiment, the image processing system can perform layer-by-layer filtering based on clarity, availability and effectiveness of the received image data, and store and display it, thereby improving the accuracy of identifying overhead line faults / defects.
[0079] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A line anomaly detection device, characterized in that, This includes photovoltaic modules, power supply modules, high-frequency current sensors, and image acquisition modules; The power module is installed on the back of the photovoltaic module, the photovoltaic module is used to charge the power module, and the power module is used to supply power to the image acquisition module; The high-frequency current sensor is used to send the acquired induced current signal to the image acquisition module through the signal output line; The image acquisition module includes a comparator and a first camera; the comparator is used to determine whether the amplitude of the induced current signal is greater than a preset threshold, and if the amplitude of the induced current signal is greater than the preset threshold, it sends a capture trigger signal to the first camera; the first camera is used to capture an image in response to the capture trigger signal.
2. The line anomaly capture device according to claim 1, characterized in that, The image acquisition module also includes a second camera; The second camera is used to take a picture after the first camera has taken a picture, and the resolution of the image captured by the second camera is higher than the resolution of the image captured by the first camera.
3. The line anomaly capture device according to claim 1, characterized in that, The image acquisition module also includes a third camera; The third camera is used to take pictures based on a preset cycle.
4. The line anomaly capture device according to any one of claims 1-3, characterized in that, The photovoltaic module, the high-frequency current sensor, and the image acquisition module are fixed by a fixed steel frame; The fixed steel frame includes a shaft column and a plumb column, and the first end of the plumb column is welded to the shaft column; The photovoltaic module is fixed to the first end of the shaft column, and the image acquisition module is fixed to the second end of the shaft column; The high-frequency current sensor is fixed to the vertical column by an annular pressure plate and fixing bolts, and the high-frequency current sensor is perpendicular to the vertical column.
5. The line anomaly capture device according to claim 4, characterized in that, The second end of the plumb line is provided with a telescopic shaft, and the end of the telescopic shaft is provided with a bracket; the telescopic shaft is fixed to the second end of the plumb line by multiple adjusting bolts.
6. The line anomaly capture device according to claim 4, characterized in that, A direction adjustment seat is provided at the second end of the shaft column. The image acquisition module is fixed on the direction adjustment seat by a mounting piece. The direction adjustment seat is used to realize the rotation of the image acquisition module in the horizontal direction.
7. The line anomaly capture device according to any one of claims 1-3, characterized in that, The lines connected to the image acquisition module are fixedly connected via explosion-proof connectors.
8. The line anomaly capture device according to any one of claims 1-3, characterized in that, The image acquisition module also includes a control processing module, a power management module, a data storage module, a clock module, and a wireless transmission module; The wireless transmission module is used to receive control commands and transmit images captured by the image acquisition module.
9. A line anomaly detection system, characterized in that, Includes the line anomaly capture device and image processing system as described in any one of claims 1-8; The image processing system includes a communication module, which is used to receive image data sent by the line anomaly capture device.
10. The line anomaly capture system according to claim 9, characterized in that, The image processing system also includes an image processing module, an image recognition module, an image display module, an instruction issuing module, and an image storage module; The image processing module is used to read image data from the communication module and perform sharpness detection on the image data to determine usable image data; The image recognition module is used to filter the available image data and determine image data with line anomalies. The image display module is used to display image data indicating a line abnormality. The image display module is also used to send corresponding control commands to the command issuing module in response to user operations; The instruction issuing module is used to digitize the control instructions and send them to the communication module; The image storage module is used to store image data of the line malfunction.