Span calculation device and distribution network distributed traveling wave distance measurement system

Abstract

The utility model relates to a span calculation device and a distribution network distributed traveling wave distance measurement system, and the device comprises a plurality of pole and tower information identifiers which are respectively installed on each pole and tower and carry the pole and tower information of the pole and tower; the unmanned aerial vehicle is provided with a recognition device used for recognizing the tower information identifier and is further provided with a high-precision differential GPS instrument used for collecting tower coordinates where the tower information identifier is located; and the upper computer is used for calculating the span between the two adjacent towers through the tower coordinates from the unmanned aerial vehicle. According to the method and the device, the span between two adjacent towers of the same line can be accurately calculated, the data accuracy is ensured, and the working efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of span calculation of overhead lines, and particularly to a span calculation device and a distribution network distributed traveling wave ranging system. Background Art

[0002] After decades of development, the traveling wave method has been improved to form a set of industrial processes from theory to practice, and almost all relatively mature positioning methods are based on the traveling wave principle. With the vigorous promotion of traveling wave technology, the current traveling wave technology is widely used in the field of overhead lines, and a large number of traveling wave terminals have emerged, such as overhead traveling wave devices, traveling wave switches, and traveling wave modules. In related technologies, for the span verification of overhead lines, the span is mainly averaged and converted according to the pole numbers. However, during the construction of line poles, due to different geographical conditions and local renovation situations, the spans between each pole are different, resulting in large span errors.

[0003] Due to the unclear span ledger and inaccurate length of overhead lines, the accuracy of traveling wave ranging has always been low, affecting the application of traveling wave positioning and ranging technology and resulting in low fault finding efficiency. Therefore, there is an urgent need to provide a span calculation device to solve the above situation. Summary of the Invention

[0004] This application provides a span calculation device and a distribution network distributed traveling wave ranging system, which can solve the situation that due to the unclear span ledger and inaccurate length of overhead lines, the accuracy of traveling wave ranging has always been low, affecting the application of traveling wave positioning and ranging technology and resulting in low fault finding efficiency.

[0005] In a first aspect, an embodiment of this application provides a span calculation device. The span calculation device includes: a pole information identifier, a drone, and a host computer. The number of pole information identifiers is multiple, and they are respectively installed on each pole. The pole information identifier carries the pole information of the pole; a drone, on which an identification device for identifying the pole information identifier is installed, and a high-precision differential GPS instrument for collecting the coordinates of the pole where the pole information identifier is located is also installed; a host computer, which calculates the span between two adjacent poles through the pole coordinates from the drone.

[0006] In combination with the first aspect, in an implementation manner, the pole information identifier is an electronic identifier, and the identification device is a short-range communication module.

[0007] In combination with the first aspect, in an implementation manner, the drone is further installed with a radio frequency module for sending a control command to the electronic identifier through radio frequency information.

[0008] In combination with the first aspect, in an implementation manner, the pole information identifier is a two-dimensional code label, and the identification device is a camera.

[0009] In combination with the first aspect, in one embodiment, the pole tower information identifier is a text identification plate, and the identification device is a camera.

[0010] In combination with the first aspect, in one embodiment, the pole tower information includes the affiliated line, main line, branch, and pole tower number of the pole tower.

[0011] In combination with the first aspect, in one embodiment, the unmanned aerial vehicle is further equipped with a verification device for verifying the pole tower information.

[0012] In combination with the first aspect, in one embodiment, the unmanned aerial vehicle is equipped with a wireless data transmission module for connecting to a host computer, and a controller connected to the wireless data transmission module.

[0013] In the second aspect, an embodiment of the present application provides a distribution network distributed traveling wave ranging system based on the above-mentioned span calculation device. The distribution network distributed traveling wave ranging system includes traveling wave fault ranging devices, the number of which is multiple, and they are distributed and installed on some pole towers. The distance between two adjacent traveling wave fault ranging devices on the same line is within a preset distance range; the distribution network distributed traveling wave ranging system is used for: calculating the distance between two adjacent traveling wave fault ranging devices according to the spans between adjacent two pole towers calculated by the host computer in the same line between two adjacent traveling wave fault ranging devices.

[0014] In combination with the second aspect, in one embodiment, there are several pole towers between two adjacent traveling wave fault ranging devices on the same line.

[0015] The beneficial effects brought by the technical solutions provided by the embodiments of the present application include:

[0016] In the present application, the pole tower information identifier on each pole tower is identified by the identification device of the unmanned aerial vehicle, and the pole tower information carried on the pole tower information identifier is read, ensuring that the staff can easily obtain the pole tower information when needed, thereby improving work efficiency; after determining that the pole tower information is accurate, the high-precision differential GPS instrument on the unmanned aerial vehicle is used to collect the pole tower coordinates, which can avoid the pole tower coordinates of non-same-line pole towers being collected by the high-precision differential GPS instrument and ensure the accuracy of the data; finally, the host computer calculates the span between two adjacent pole towers according to the collected pole tower coordinates to ensure the accuracy of the data. Through the present application, the situation in the related art that due to the unclear span ledger and inaccurate length of the overhead line, the accuracy of traveling wave ranging has been low, affecting the application of the traveling wave positioning and ranging technology and resulting in low fault finding efficiency is solved. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic installation diagram of a tower information identifier of the span calculation device in the embodiment of the present application.

[0019] In the figure:

[0020] 1. Tower information identifier; 2. Tower; 3. UAV; 4. Power line; 5. Crossbar. Specific embodiments

[0021] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0022] First, some technical terms in the present application are explained to facilitate the understanding of the present application by those skilled in the art.

[0023] Tower: In a power line, an iron tower or a concrete tower erected to support cables or wires.

[0024] UAV: Also called an unmanned aerial vehicle, abbreviated as "UAV" in English, is an unmanned aircraft controlled by a radio remote control device and a self-provided program control device, or is completely or intermittently autonomously operated by an on-vehicle computer.

[0025] Host computer: Refers to a computer that can directly issue control commands.

[0026] Traveling wave fault location device: A device that collects and processes line traveling wave signals at a substation and can give a ranging result.

[0027] To make the purpose, technical solutions and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail in conjunction with the drawings.

[0028] The embodiment of the present application provides a span calculation device and a distribution network distributed traveling wave ranging system, which can solve the problem that due to the unclear and inaccurate length of the span ledger of the overhead line, the accuracy of traveling wave ranging has been low, affecting the application of the traveling wave positioning and ranging technology and resulting in low fault finding efficiency.

[0029] In a first aspect, an embodiment of the present application provides a span calculation device.

[0030] In one embodiment, referring to Figure 1 As shown, it is an installation schematic diagram of a tower information identifier 1 in the span calculation device. As Figure 1 shown, the span calculation device includes a tower information identifier 1, a drone 3, and a host computer. The number of tower information identifiers 1 is multiple, which are respectively installed on each tower 2, and the tower information identifier 1 carries the tower information of the tower 2; an identification device for identifying the tower information identifier 1 is installed on the drone 3, and a high-precision differential GPS instrument for collecting the coordinates of the tower where the tower information identifier 1 is located is also installed; the host computer calculates the span between two adjacent towers 2 through the tower coordinates from the drone 3.

[0031] In this embodiment, the tower signal identifier 1 has various forms. For example, the tower signal identifier 1 can be an electronic identifier, a two-dimensional code, or a text signboard, etc. The tower signal identifier 1 is installed on the tower 2, and there is a one-to-one correspondence between them, and each tower information identifier 1 carries the tower information of the tower 2, which is equivalent to giving the tower 2 an "identity card".

[0032] The identification device and the high-precision differential GPS instrument installed on the drone 3 can be used to identify the tower information identifier 1 and collect the coordinates of the tower where the tower information identifier 1 is located respectively. The identification device has various forms. For example, the identification device can be a short-range communication module or a camera, etc. The high-precision differential GPS instrument can also be replaced by other positioning instruments, but it is necessary to ensure that the coordinates of the tower where the tower information identifier 1 is located can be accurately collected. A wireless communication is established between the host computer and the drone 3, so that the host computer can not only control the flight path of the drone 3 according to a certain control logic to identify the towers 2 on the same line, but also calculate the span between two adjacent towers 2 through the tower coordinates from the drone 3.

[0033] In this embodiment, by installing multiple tower information identifiers 1 on each tower 2 respectively and enabling each tower information identifier 1 to carry the tower information, it is ensured that the staff can easily obtain the tower information when needed, thus improving work efficiency. By installing an identification device for identifying the tower information identifier 1 on the unmanned aerial vehicle (UAV) 3 and also installing a high-precision differential GPS instrument for collecting the coordinates of the tower where the tower information identifier 1 is located, when the UAV 3 performs a data collection task, the identification device will first capture and identify the tower information identifier 1. Once the identification is successful, the high-precision differential GPS instrument will immediately record the coordinates of the tower. This collaborative method not only greatly improves the efficiency and accuracy of tower information collection, but also reduces the cost and risk of manual inspection, facilitating the management work of the tower 2. By calculating the span between two adjacent towers 2 based on the tower coordinates of the UAV 3 by the upper computer, the accuracy of the calculation result can be greatly improved. Especially in some complex or dangerous environments (such as mountains, rivers, swamps, etc.), it may be very difficult and risky to manually measure the span between the towers 2. Using the UAV 3 and the upper computer for calculation can also prevent the staff from entering these dangerous areas, thus improving work safety.

[0034] Further, in one embodiment, the tower information identifier 1 is an electronic identifier, and the identification device is a short-range communication module. In this embodiment, the tower information identifier 1 is an electronic identifier, which can provide a unique identity code for each tower 2, equivalent to giving the tower 2 an "ID card". This uniqueness ensures the accuracy of the tower information and avoids confusion and errors in traditional identification methods. Using the short-range communication module can quickly and accurately identify the electronic identifier on the tower 2, thus helping the operation and maintenance personnel quickly locate the tower 2.

[0035] Further, in one embodiment, the UAV 3 is also installed with a radio frequency module for sending control commands to the electronic identifier through radio frequency information. In this embodiment, the radio frequency module is used to realize the wireless communication between the UAV 3 and the electronic identifier on the tower 2. By installing the radio frequency module on the UAV 3, the UAV 3 can precisely control the electronic identifier at a relatively long distance, thus improving work efficiency and safety. In this embodiment, the radio frequency module of the UAV 3 sends a radio frequency signal to the electronic identifier. After receiving the radio frequency signal sent by the radio frequency module of the UAV 3, the electronic identifier will send the tower information to the UAV 3.

[0036] Furthermore, in one embodiment, the pole tower information identifier 1 is a QR code label, and the recognition device is a camera. In this embodiment, by setting the pole tower information identifier 1 as a QR code label and the recognition device as a camera, the QR code label can be recognized by the camera to automatically collect the pole tower information. This makes the acquisition work of the pole tower information very easy and accurate. In addition, since the recognition device is a camera, the overall state and environmental changes of the pole tower 2 can also be monitored with the help of the camera, which is convenient for the manager to formulate more effective maintenance and management strategies.

[0037] Furthermore, in one embodiment, the pole tower information identifier 1 is a text sign, and the recognition device is a camera. In this embodiment, the text sign can display the pole tower information more directly and clearly. For example, the affiliated line, main line, branch, and pole tower number of the pole tower 2, etc., which is convenient for the staff to quickly and accurately identify and understand. By recognizing the text sign with the camera, the pole tower information can be automatically collected. This makes the acquisition work of the pole tower information very easy and accurate. Since the recognition device is a camera, the overall state and environmental changes of the pole tower 2 can also be monitored with the help of the camera, which is convenient for the manager to formulate more effective maintenance and management strategies.

[0038] In addition, the text sign can be made of anti-corrosion and acid-alkali resistant metal materials (such as aluminum alloy, stainless steel, etc.), so it has a long service life and can keep the information clearly visible under harsh environmental conditions.

[0039] Furthermore, in one embodiment, the pole tower information includes the affiliated line, main line, branch, and pole tower number of the pole tower 2. In this embodiment, the pole tower information includes the affiliated line, main line, branch, and pole tower number of the pole tower 2. When a fault occurs or maintenance is needed in the power system, through the pole tower information, that is, the affiliated line, main line, branch, and pole tower number of the pole tower 2, the fault or maintenance point can be quickly located, thus greatly shortening the response time and improving the maintenance efficiency.

[0040] Furthermore, in one embodiment, the unmanned aerial vehicle 3 is also equipped with a verification device for verifying the pole tower information. In this embodiment, the verification device is mainly used to verify the pole tower information. By installing the verification device on the unmanned aerial vehicle 3, the pole tower information can be automatically verified to avoid collecting pole tower information of non-same line, which will affect the calculation results. Usually, the unmanned aerial vehicle 3 will collect and verify the pole tower information along a line. However, during the construction of the pole tower 2 on the line, due to different geographical conditions and local renovation situations, the positions of the pole tower 2 are intricate and it is easy to make mistakes. When the pole tower information collected by the verification device of the unmanned aerial vehicle 3 does not match, it means that the pole tower 2 is not the pole tower 2 of this line, and then the next pole tower information needs to be re-collected until it is confirmed that the collected one is the pole tower 2 of this line.

[0041] Further, in one embodiment, the drone 3 is equipped with a wireless data transmission module for connecting to a host computer, and a controller connected to the wireless data transmission module. In this embodiment, the wireless data transmission module can achieve real-time data transmission between the drone 3 and the host computer, enabling the operator to immediately obtain the status information and the collected data information of the drone 3. This real-time nature is particularly important for scenarios such as emergency tasks and complex environment monitoring. By connecting the controller through the wireless data transmission module of the drone 3, the staff can remotely control the drone 3 from a location far away from it, greatly improving the flexibility and convenience of operation.

[0042] In a second aspect, an embodiment of the present application further provides a distribution network distributed traveling wave ranging system based on the span calculation device in any of the above embodiments.

[0043] In one embodiment, the distribution network distributed traveling wave ranging system includes traveling wave fault ranging devices, and the number of them is multiple, which are distributed on some of the poles and towers (2) in a distributed manner. The distance between two adjacent traveling wave fault ranging devices on the same line is within a preset distance range;

[0044] The distribution network distributed traveling wave ranging system is used to: calculate the distance between two adjacent traveling wave fault ranging devices according to the span between two adjacent poles and towers (2) calculated by the host computer in the same line between two adjacent traveling wave fault ranging devices.

[0045] In this embodiment, the distribution network distributed traveling wave ranging system includes traveling wave fault ranging devices, and the number of traveling wave ranging devices is multiple, which are distributed along the same line on some of the poles and towers. Moreover, due to different geographical conditions and local renovation situations, the span between two adjacent poles and towers may be different, and the traveling wave fault ranging device also has a certain traveling wave ranging range. The traveling wave fault ranging devices can be distributed on the pole and tower 2 at a certain distance, or the traveling wave fault ranging devices can be distributed with several pole and tower 2 intervals. By making the distance between two adjacent traveling wave fault ranging devices on the same line within the preset distance range, the accuracy of the traveling wave fault ranging device for ranging can be ensured, which helps to more accurately capture and analyze the traveling wave signals generated when a fault occurs, and improve the accuracy of fault location. Preferably, the preset distance range is within 5 kilometers.

[0046] Among them, the distribution network distributed traveling wave ranging system is used to: calculate the distance between two adjacent traveling wave fault ranging devices according to the span between two adjacent poles and towers (2) calculated by the host computer in the same line between two adjacent traveling wave fault ranging devices. This can ensure the accuracy of the ranging data, facilitate quickly locating the location of the line fault when a line fault occurs in the future, and timely repair and restoration, improving the work efficiency. Moreover, the distance between two traveling wave fault ranging devices can be calculated by using the chips for calculation in the existing traveling wave ranging system, and the calculation method is easy to implement.

[0047] Furthermore, in one embodiment, there are several poles 2 between two adjacent traveling wave fault location devices on the same line. In this embodiment, since the traveling wave fault location device can process the line traveling wave signals within a certain range, the traveling wave fault location devices can be installed in a segmented manner without exceeding this range. In this way, not only can the location where the fault occurs be accurately located, especially in long-distance transmission lines, but also the error can be significantly reduced by segmentally monitoring the line. At the same time, the number of traveling wave fault location devices can be reduced, thus saving costs.

[0048] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present application. Unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0049] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0050] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A span calculation device, characterized in that, Including: Tower information identifiers (1), with a plurality of them, respectively installed on each tower (2), and the tower information identifiers (1) carry the tower information of the corresponding tower (2); An unmanned aerial vehicle (3), on which an identification device for identifying the tower information identifier (1) is installed, and a high-precision differential GPS instrument for collecting the coordinates of the tower where the tower information identifier (1) is located is also installed; A host computer, which calculates the span between two adjacent towers (2) based on the tower coordinates from the unmanned aerial vehicle (3).

2. The span calculation device according to claim 1, wherein The tower information identifier (1) is an electronic identifier, and the identification device is a short-range communication module.

3. The span calculation device according to claim 2, wherein The unmanned aerial vehicle (3) is further installed with a radio frequency module for sending control commands to the electronic identifier through radio frequency information.

4. The span calculation device according to claim 1, characterized in that The tower information identifier (1) is a two-dimensional code label, and the identification device is a camera.

5. The span calculation device according to claim 1, wherein The tower information identifier (1) is a text identification plate, and the identification device is a camera.

6. The span calculation device according to any one of claims 1-5, characterized in that, The tower information includes the line, main line, branch, and tower number to which the tower (2) belongs.

7. The span calculation device according to claim 1, characterized in that, The unmanned aerial vehicle (3) is further installed with a verification device for verifying the tower information.

8. The span calculation device according to claim 1, characterized in that, The unmanned aerial vehicle (3) is installed with a wireless data transmission module for connecting to the host computer, and a controller connected to the wireless data transmission module.

9. A distribution network distributed traveling wave ranging system based on the span calculation device according to any one of claims 1-8, characterized in that, The distribution network distributed traveling wave ranging system includes a plurality of traveling wave fault ranging devices, which are distributed and installed on some towers (2), and the distance between two adjacent traveling wave fault ranging devices on the same line is within a preset distance range; The distribution network distributed traveling wave ranging system is used to: calculate the distance between two adjacent traveling wave fault ranging devices according to the spans between two adjacent towers (2) calculated by the host computer in the same line between two adjacent traveling wave fault ranging devices.

10. The distribution network distributed traveling wave ranging system according to claim 9, wherein, There are several towers (2) between two adjacent traveling wave fault ranging devices on the same line.

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