A static parameter measurement device for overhead contact lines based on an unmanned aerial vehicle (UAV) platform
The contact wire static parameter measurement device based on the UAV platform solves the problems of bulky equipment and high manpower requirements, and realizes efficient and safe contact wire static parameter measurement, which is suitable for complex environments and dangerous areas.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY XIAN GRP CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-26
AI Technical Summary
The existing static parameter measurement equipment for conventional railway catenary is bulky and requires a lot of manpower, resulting in low operating efficiency, unreasonable personnel allocation, increased operation and maintenance costs, and a threat to safety.
A static parameter measurement device for overhead contact lines based on a drone platform is adopted, which includes the drone body, laser measurement device, telescopic support and processor chip, to achieve non-contact high-precision measurement, reduce manpower requirements and is suitable for complex environments.
It improves data acquisition efficiency, reduces equipment weight and labor costs, reduces the risk of personal injury, expands the measurement coverage, and is suitable for complex environments and hazardous areas.
Smart Images
Figure CN224277596U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of railway catenary testing technology, specifically relating to a catenary static parameter measuring device based on an unmanned aerial vehicle (UAV) platform. Background Technology
[0002] In the railway transportation system, conventional-speed railways, as a crucial component, undertake a large number of passenger and freight transport tasks, and their safe and stable operation is of paramount importance. The overhead contact system, as a key facility providing power to electric locomotives on conventional-speed railways, plays an indispensable role in ensuring the normal operation of the railway power supply system and guaranteeing the safe and smooth operation of trains through accurate measurement of its static parameters. However, the traditional methods currently relied upon for measuring the static parameters of the overhead contact system on conventional-speed railways are facing numerous problems that urgently need to be addressed, posing significant challenges to railway operation and maintenance work.
[0003] Currently, the measurement of static parameters of the overhead contact system on conventional railways mainly relies on specialized equipment called the overhead contact system geometric parameter measuring instrument. Although this equipment is designed to measure many key static parameters of the overhead contact system, such as contact wire height, pull-out value, and positioner slope, it has revealed many drawbacks in practical applications.
[0004] From the perspective of its inherent characteristics, the overhead contact line geometric parameter measuring instrument is extremely bulky. It is typically composed of multiple precision components, including a complex mechanical structure, high-precision sensors, and supporting electronic display and data processing modules. The integration of these components makes the entire device large and heavy. In actual operation scenarios, workers need to transport it to various measuring points along the railway line. Because railway lines are often long and the measuring points are scattered, workers often have to carry the heavy equipment through various terrain conditions, including railway embankments, bridges, and tunnels. In some mountainous railways, the terrain is highly undulating; workers not only have to overcome steep slopes but also navigate rugged surfaces, making the process of transporting the measuring instrument exceptionally arduous. This not only consumes a great deal of physical strength but also significantly increases the workload for workers and reduces work efficiency.
[0005] Besides the equipment itself, the existing measurement operation mode also has obvious irrationalities in personnel allocation. When conducting static parameter measurements of the overhead contact line, regulations require multiple safety personnel to ensure operational safety. Specifically, one safety personnel should be stationed at each end of the work area, plus one station-based safety personnel at the station, and on-site safety personnel within the work area, requiring a total of four safety personnel for the entire operation.
[0006] In summary, existing methods for measuring the static parameters of overhead contact lines on conventional railways suffer from numerous problems that urgently need to be addressed, both in terms of the characteristics of the measuring equipment and the allocation of personnel. These problems not only affect the efficiency and quality of overhead contact line static parameter measurements and increase railway operation and maintenance costs, but also pose a potential threat to the safe and stable operation of railway transportation. Therefore, exploring a more efficient, convenient, and economical method for measuring the static parameters of overhead contact lines has become a crucial issue that the railway industry urgently needs to address. Utility Model Content
[0007] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a static parameter measurement device for overhead contact lines based on an unmanned aerial vehicle (UAV) platform.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] A static parameter measurement device for overhead contact lines based on an unmanned aerial vehicle (UAV) platform includes an UAV body, a laser measurement device mounted on the top of the UAV body, a telescopic bracket mounted on the side of the UAV body, and a processor chip included in the UAV body, with the laser measurement device connected to the processor chip.
[0010] The laser measuring device includes a measuring instrument frame, inside which is a rotatable measuring head, a laser measuring probe, and a first camera mounted on top of the rotatable measuring head.
[0011] The measuring instrument frame has a concave structure.
[0012] The top of the rotatable head is higher than the measuring instrument frame.
[0013] The rotatable head has a built-in horizontal inclinometer that can record the rotation angle of the rotatable head.
[0014] The telescopic support includes a telescopic rod support, with telescopic rods at both ends of the telescopic rod support. The second camera is installed at the bottom of the telescopic rod support, and a rail bracket is installed at the end of the telescopic rod.
[0015] The rail brackets are installed on both sides of the railway contact network.
[0016] The drone body includes a support frame, and a propeller is installed at the top of the end of each support frame.
[0017] A brushless motor is installed between the propeller and the support.
[0018] The processor chip is located at the center of the drone's body.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] This invention provides a static parameter measurement device for overhead contact lines based on an unmanned aerial vehicle (UAV) platform. The device includes a UAV body with a laser measuring device mounted on its top and a telescopic support mounted on its side. The UAV body includes a processor chip, and the laser measuring device is connected to the processor chip. After takeoff, the telescopic support secures the UAV, and the laser measuring device measures the overhead contact line. The measured data is transmitted in real-time to the processor chip for processing and analysis, ultimately achieving high-precision measurement of the static parameters of the overhead contact line. By linking the top-mounted laser measuring device with the processor chip, it is possible to conduct inspections and parameter measurements on conventional railway lines outside of maintenance windows, achieving high-precision, non-contact measurement suitable for complex environments and significantly improving data acquisition efficiency. The modular design of the laser measuring device and the telescopic support optimizes the spatial layout, reduces the weight of the device, extends its operating time, and facilitates maintenance and functional expansion. Furthermore, this equipment replaces manual labor outside maintenance windows, greatly reducing the risk of personnel injury from trains. Only one operator is required for operation, and one station liaison officer is needed to notify train operations; no additional protective personnel are required, significantly reducing human resource costs.
[0021] Furthermore, the telescopic bracket makes stable contact with the railway contact network, replacing the drone base, ensuring stability while ensuring that the measurement module on the drone is located in the center of the line.
[0022] Furthermore, the rotatable head allows the laser measurement probe and the first camera to be flexibly adjusted in angle, enabling multi-dimensional data acquisition in horizontal, vertical, or tilted directions, expanding the measurement coverage area, and reducing the limitations of the drone's flight path.
[0023] Furthermore, a brushless motor is installed between the propeller and the support frame. The brushless motor can provide strong and stable power to the propeller, improving the flight efficiency and endurance of the drone.
[0024] Furthermore, this invention combines the advantages of laser measurement and the mobility of UAVs, and can be widely used in fields such as building surveying, disaster monitoring, and agricultural surveys, and is especially suitable for operations in dangerous areas that are difficult for humans to reach. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the device structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the structure of the unmanned aerial vehicle (UAV) body in this utility model;
[0028] Figure 3 This is a schematic diagram of the laser measuring device in this utility model;
[0029] Figure 4 This is a schematic diagram of the telescopic support structure in this utility model;
[0030] Figure 5 This is a schematic diagram of the contact wire static parameter measurement method of this utility model;
[0031] The following are the reference numerals in the diagram: 1. Laser measuring device; 11. Measuring instrument frame; 12. Rotatable head; 13. Laser measuring probe; 14. First camera; 2. UAV body; 21. Support; 22. Propeller; 23. Brushless motor; 24. Processor chip; 3. Telescopic support; 31. Telescopic rod; 32. Telescopic rod support; 33. Second camera; 34. Rail support. Detailed Implementation
[0032] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.
[0034] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0035] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.
[0036] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0037] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0038] The accompanying drawings show various structural schematic diagrams according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged and may have been omitted for clarity. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.
[0039] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0040] Example 1
[0041] A static parameter measurement device for overhead contact lines based on an unmanned aerial vehicle (UAV) platform has the following structural components:
[0042] like Figures 1-4As shown, a static parameter measurement device for overhead contact lines based on an unmanned aerial vehicle (UAV) platform includes an UAV body 2. A laser measurement device 1 is installed on the top of the UAV body 2. The laser measurement device 1 includes a measuring instrument frame 11, which has a concave structure. A rotatable head 12 is installed inside the measuring instrument frame 11. The top of the rotatable head 12 is higher than the measuring instrument frame 11. A laser measurement probe 13 and a first camera 14 are installed on the top of the rotatable head 12. The laser measurement probe 13 and the first camera 14 inspect the line environment and collect image data by rotating the rotatable head 12. A telescopic bracket 3 is installed on the side of the UAV body 2. The telescopic bracket 3 includes a telescopic rod bracket 32. Telescopic rods 31 are set at both ends of the telescopic rod bracket 32. A second camera 33 is installed at the bottom of the telescopic rod bracket 32. A rail bracket 34 is set at the end of the telescopic rod 31.
[0043] Preferably, the rotatable head 12 has a built-in horizontal inclinometer, which can record the rotation angle of the rotatable head 12.
[0044] Preferably, a control module is installed inside the telescopic rod bracket 32 to control the operation of the telescopic rod 31.
[0045] Preferably, the drone body 2 includes four brackets 21, and a propeller 22 is installed at the top of the end of each bracket 21. A brushless motor 23 is provided between the propeller 22 and the top of the bracket 21, and the propeller 22 is rotated by the brushless motor 23.
[0046] Preferably, a power supply and processor chip 24 are installed at the center of the UAV body 2, and the processor chip 24 analyzes and processes the data collected by the laser measurement device 1.
[0047] Example 2
[0048] A static parameter measurement device for overhead contact lines based on an unmanned aerial vehicle (UAV) platform operates as follows:
[0049] After the drone takes off, the telescopic rod 31 of the telescopic support 3 extends to both sides of the contact wire under the adjustment of the control module. The position is fixed by the rail bracket 34 and the second camera 33 is used to assist in positioning. The rotatable head 12 of the laser measuring device 1 drives the laser measuring probe 13 and the first camera 14 to perform multi-angle scanning and image acquisition of the contact wire. At the same time, the acquired data is transmitted to the processor chip 24 in real time for processing and analysis, and finally completes the high-precision measurement of the static parameters of the contact wire.
[0050] like Figure 5 As shown, the measurement method of laser measuring device 1 is as follows:
[0051] The laser measuring instrument is located at the center of the line. The rotatable head 12 is rotated to align with the contact line position. The angle of rotation is recorded as a, and the measured length is recorded as x.
[0052] Given that the triangle shown in the diagram is a right triangle, the angles are a, 90°, and b (b = 180° - 90° - a).
[0053] The length x measured by the laser measuring instrument is also known.
[0054] Given the lengths of three angles and one side of a triangle, solve the triangle.
[0055] Law of Sines Or the cosine theorem formula.
[0056] The two side lengths obtained are the pull-out value (the offset of the contact wire relative to the pantograph; in the straight section, there is no superelevation of the outer rail, so the pull-out value is equal to the offset of the contact wire relative to the center of the line) and the conductor height (contact height).
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.
Claims
1. An unmanned aerial vehicle platform based overhead contact line static parameter measuring device, characterized in that, The device includes a drone body (2), a laser measuring device (1) is installed on the top of the drone body (2), a telescopic bracket (3) is installed on the side of the drone body (2), and the drone body (2) includes a processor chip (24). The laser measuring device (1) is connected to the processor chip (24).
2. The overhead line static parameter measuring device based on the unmanned aerial vehicle platform according to claim 1, characterized in that, The laser measuring device (1) includes a measuring instrument frame (11), inside which is a rotatable head (12), a laser measuring probe (13) and a first camera (14) mounted on top of the rotatable head (12).
3. The overhead line static parameter measuring device based on the unmanned aerial vehicle platform according to claim 2, characterized in that, The measuring instrument frame (11) has a concave structure.
4. The overhead line static parameter measuring device based on the UAV platform according to claim 3, characterized in that, The top of the rotatable head (12) is higher than the measuring instrument frame (11).
5. The overhead line static parameter measuring device based on the UAV platform according to claim 4, characterized in that, The rotatable head (12) has a built-in horizontal inclinometer that can record the rotation angle of the rotatable head (12).
6. The overhead line static parameter measuring device based on the unmanned aerial vehicle platform according to claim 1, characterized in that, The telescopic bracket (3) includes a telescopic rod bracket (32), with telescopic rods (31) at both ends of the telescopic rod bracket (32), a second camera (33) installed at the bottom of the telescopic rod bracket (32), and a rail bracket (34) at the end of the telescopic rod (31).
7. The contact wire static parameter measuring device based on an unmanned aerial vehicle platform according to claim 6, characterized in that, The rail bracket (34) is mounted on both sides of the railway contact network.
8. The contact wire static parameter measuring device based on an unmanned aerial vehicle platform according to claim 1, characterized in that, The drone body (2) includes a support (21), and a propeller (22) is provided at the top of the end of each support (21).
9. A contact wire static parameter measuring device based on an unmanned aerial vehicle platform according to claim 8, characterized in that, A brushless motor (23) is provided between the propeller (22) and the bracket (21).
10. A contact network static parameter measuring device based on an unmanned aerial vehicle platform according to claim 8, characterized in that, The processor chip (24) is located at the center of the UAV body (2).