Overhead line sag measurement system
By designing an overhead line sag measurement system including satellite positioning module and communication module, the problems of low measurement efficiency and low accuracy in the prior art are solved, and fast and accurate sag measurement is achieved, which meets the timeliness of construction and ensures the safety of the line.
Patent Information
- Application Number
- CN202421431121.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-21
AI Technical Summary
When measuring the sag of overhead lines, the prior art has low efficiency and low accuracy, which cannot meet design requirements and construction timeliness.
An overhead line sag measurement system including a first measuring device and a second measuring device is designed. The first measuring device is fixed on a support frame, and the second measuring device is movably arranged on a conductor, both equipped with a satellite positioning module and a communication module, and the sag information is obtained and calculated through a computer terminal.
It realizes rapid and accurate calculation of sag information, improves measurement efficiency and accuracy, meets the timeliness of construction, and ensures the safety of overhead lines.
Smart Images
Figure CN222670963U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of sag measurement, and in particular to an overhead line sag measurement system. Background Art
[0002] During the operation of overhead lines, in order to ensure the safe operation of the lines, it is necessary to control the sag of the conductors. If the sag of the conductors is too large, it may cause the conductors to touch the wires or short circuits when encountering strong winds or typhoons. At the same time, the distance between the conductors and the ground is small, which poses a safety hazard. If the sag is too small, it will increase the tension on the conductors and the prestressed strength requirements of the poles, and there is a risk of broken wires and poles.
[0003] In the related art, there are two methods for measuring sag: observation method and total station measurement method. The observation method roughly observes with the naked eye and tightens the line to an approximate height based on the experience of the construction personnel. This method is highly efficient, but has low accuracy and cannot meet the design requirements. The total station measurement method uses a total station to accurately measure the highest and lowest points of the line and calculate the accurate sag. This method is highly accurate, but it requires the cooperation of multiple people, has low work efficiency, and cannot meet the timeliness of construction. Utility Model Content
[0004] The main purpose of the embodiments of the present application is to provide an overhead line sag measurement system to improve the measurement efficiency and measurement accuracy of the overhead line sag.
[0005] To achieve the above-mentioned object, a first aspect of an embodiment of the present application provides an overhead line sag measurement system, comprising: a first measurement device, the first measurement device being fixedly disposed on a support frame of the overhead line and used to determine first positioning information;
[0006] a second measuring device, the second measuring device being arranged on a conductor of the overhead line and used for determining second positioning information;
[0007] A computer terminal, used for acquiring the first positioning information and the second positioning information, and determining the overhead line sag information according to the first positioning information and the second positioning information;
[0008] Wherein, the first measuring device is provided with a first satellite positioning module and a first communication module, the first measuring device determines the first positioning information through the satellite positioning module, and sends the first positioning information to the computer terminal through the first communication module;
[0009] The first measuring device is provided with a second satellite positioning module and a second communication module. The second measuring device determines the second positioning information through the second satellite positioning module and sends the second positioning information to the computer terminal through the second communication module.
[0010] According to the overhead line sag measurement system provided in some embodiments of the present application, the second measuring device is further provided with a pulley module, and the second measuring device is movably disposed on the conductor through the pulley module.
[0011] According to the overhead line sag measurement system provided in some embodiments of the present application, the second measuring device is also provided with a controllable motor module and a control module, the pulley module and the control module are respectively connected to the controllable motor module, the controllable motor module is used to control the pulley module to drive the second measuring device to move in a directional manner on the conductor, and the controllable motor module is controlled by the control module.
[0012] According to the overhead line sag measurement system provided in some embodiments of the present application, the first measuring device and the second measuring device further include: a temperature measurement module, and the temperature measurement module is used to obtain temperature information.
[0013] According to the overhead line sag measurement system provided in some embodiments of the present application, the first measuring device and the second measuring device further include: a wind speed measurement module, and the wind speed measurement module is used to obtain wind speed information.
[0014] According to the overhead line sag measurement system provided by some embodiments of the present application, the first communication module and the second communication module are NRF communication modules.
[0015] According to the overhead line sag measurement system provided in some embodiments of the present application, the first measuring device further includes a first power supply module, and the first power supply module is used to supply power to the first measuring device;
[0016] The second measuring device further includes a second power supply module, and the second power supply module is used to supply power to the second measuring device.
[0017] According to the overhead line sag measurement system provided in some embodiments of the present application, the first satellite positioning module and the second satellite positioning module adopt GPS positioning.
[0018] According to the overhead line sag measurement system provided in some embodiments of the present application, the first measuring device is fixed on a support frame of the overhead line by means of screws or cable ties.
[0019] According to the overhead line sag measurement system provided in some embodiments of the present application, the second measuring device further includes: a counterweight block for increasing its own weight.
[0020] The present application proposes an overhead line sag measurement system, comprising a first measuring device fixedly mounted on a support frame of the overhead line, a second measuring device mounted on a conductor of the overhead line, and a computer terminal, wherein the first measuring device is provided with a first satellite positioning module and a first communication module, and the second measuring device is provided with a second satellite positioning module and a second communication module.
[0021] The first positioning information is determined by the first measuring device and sent to the computer terminal, and the second positioning information is determined by the second measuring device and sent to the computer terminal. The computer terminal determines the overhead line sag information based on the received first positioning information and second positioning information.
[0022] The embodiment of the present application can quickly and accurately calculate the sag information through the positioning information obtained by the first measuring device and the second measuring device having a satellite positioning module, thereby analyzing the tightness of the overhead line and ensuring the safety of the overhead line. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of an overhead line sag measurement system provided in an embodiment of the present application;
[0024] Figure 2 is a schematic diagram of a second measuring device provided in an embodiment of the present application;
[0025] Figure 3 It is a structural schematic diagram of a second measuring device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. It should be noted that although the functional modules are divided in the device schematic diagram and the logical order is shown in the flow chart, in some cases, the steps shown or described can be performed in a different order from the module division in the device or the order in the flow chart. The terms "first", "second", etc. in the specification, claims and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.
[0028] During the operation of overhead lines, in order to ensure the safe operation of the lines, it is necessary to control the sag of the conductors. If the sag of the conductors is too large, it may cause the conductors to touch the wires or short circuits when encountering strong winds or typhoons. At the same time, the distance between the conductors and the ground is small, which poses a safety hazard. If the sag is too small, it will increase the tension on the conductors and the prestressed strength requirements of the poles, and there is a risk of broken wires and poles.
[0029] The sag control methods in related technologies include observation method and total station measurement method. The observation method roughly observes with the naked eye and tightens the line to an approximate height based on the experience of the construction personnel. This method is highly efficient, but has low accuracy and cannot meet the design requirements; while the total station measurement method accurately measures the highest and lowest points of the line with a total station and calculates the accurate sag. This method is highly accurate, but it requires the cooperation of multiple people, has low work efficiency, and cannot meet the timeliness of construction.
[0030] Based on this, the present application proposes an overhead line sag measurement system, which can improve the measurement efficiency and measurement accuracy of overhead line sag.
[0031] Please refer to Figure 1 , is a schematic diagram of the structure of an overhead line sag measurement system provided in an embodiment of the present application, such as Figure 1 As shown, in the embodiment of the present application, the overhead line sag measurement system includes a first measurement device 100 , a second measurement device 200 and a computer terminal 300 .
[0032] It should be noted that the first measuring device 100 in the embodiment of the present application is fixedly arranged on the support pole of the overhead line, and is used to determine the first positioning information. The first measuring device 100 is provided with a first satellite positioning module 101 and a first communication module 102. The first measuring device 100 determines the first positioning information through the first satellite positioning module 101, and sends the first positioning information to the computer terminal 300 through the first communication module 102.
[0033] The second measuring device 200 is arranged on the conductor of the overhead line and is used to determine the second positioning information. The second measuring device 200 is provided with a second satellite positioning module 201 and a second communication module 202. The second measuring device 200 determines the second positioning information through the second satellite positioning module 201 and sends the second positioning information to the computer terminal 300 through the second communication module 202.
[0034] It should be noted that in the embodiment of the present application, the first positioning information represents the positioning information of the wire end of the overhead line. The wire end part is at the highest point of the overhead line wire. The first positioning information is the coordinates and height information of the overhead line at the highest point.
[0035] The second positioning information represents the positioning information of the conductor in the overhead line. Part of the conductor is located at the lowest point of the conductor of the overhead line. The second positioning information is the coordinates and height information of the overhead line at the lowest point.
[0036] In an embodiment of the present application, the first satellite positioning module and the second satellite positioning module may adopt GPS positioning.
[0037] Exemplarily, in one embodiment of the present application, the first positioning information, namely, the coordinates and height information of the conductor of the overhead line at the highest point, is determined by a first satellite positioning module of the first measuring device;
[0038] The second positioning information, i.e., the coordinates and height information of the conductor of the overhead line at the lowest point, is determined by the second satellite positioning module of the second measuring device. The obtained first positioning information and second positioning information are as follows: first positioning information: E 112.679466, N 22.370287, H 13.52m;
[0039] Second positioning information: E 112.679646, N 22.370289, H 12.42m.
[0040] Among them, E 112.679466 and N 22.370287 in the first positioning information are coordinate information, E 112.679466 is the first longitude information, N 22.370287 is the first latitude information, and H 13.52m is the first altitude information; E 112.679646 and N 22.370289 in the second positioning information are coordinate information, E 112.679646 is the second longitude information, N22.370289 is the second latitude information, and H 12.42m is the second altitude information.
[0041] The sag information of the overhead line can be accurately determined by the first positioning information obtained by the first measuring module and the second positioning information obtained by the second measuring module.
[0042] It should be noted that, after the computer terminal 300 receives the first positioning information determined by the first measurement module and the second positioning information determined by the second measurement module, the overhead line sag information can be determined according to the first positioning information and the second positioning information.
[0043] The computer terminal can be a smart phone, tablet computer, laptop computer, desktop computer, etc.
[0044] Exemplarily, in one embodiment of the present application, the computer terminal calculates the coordinates according to the formula D=arc(cos(sin(first latitude information*sin second latitude information)+cos first latitude information*cos second latitude information*cos(first longitude information-second longitude information))*average radius of the earth.
[0045] When the first positioning information is E 112.679466, N 22.370287, H 13.52m, and the second positioning information is E112.679646, N 22.370289, H 12.42m, it can be calculated that the horizontal relative distance is about 32.7m, that is, the line span is about 65.4m, and the vertical relative distance is about 1.1m, so the sag information of the overhead line at this time is 1.1m.
[0046] It can be understood that the embodiment of the present application determines the first positioning information through the first measuring device and sends it to the computer terminal, determines the second positioning information through the second measuring device and sends it to the computer terminal, and the computer terminal determines the overhead line sag information based on the received first positioning information and second positioning information.
[0047] The embodiment of the present application can quickly and accurately calculate the sag information through the positioning information obtained by the first measuring device and the second measuring device having a satellite positioning module, thereby analyzing the tightness of the overhead line and ensuring the safety of the overhead line.
[0048] It should be noted that, in one embodiment of the present application, the first communication module 102 and the second measurement module 202 may be NRF communication modules.
[0049] It should be noted that in the embodiments of this application, please refer to Figure 2 , is a schematic diagram of the structure of a second measuring device provided in an embodiment of the present application, such as Figure 2 As shown, in the embodiment of the present application, the second measuring device 200 is further provided with a pulley module 203, and the second measuring device 200 can be movably disposed on the wire through the pulley module 203.
[0050] It is understandable that, through the pulley module 203, the second measuring device 200 can rely on its own gravity to drop to the lowest point of the wire without any other intervention, which simplifies the structure of the second measuring device 200 and reduces the manufacturing cost.
[0051] Please note that please refer to Figure 3 , is a schematic diagram of the structure of a second measuring device provided in an embodiment of the present application, such as Figure 3As shown, in a feasible embodiment of the present application, the second measuring device 200 is also provided with a controllable motor module 204 and a control module 205, the pulley module 203 and the control module 205 are respectively connected to the controllable motor module 204, the controllable motor module 204 is used to control the pulley module 203 to drive the second measuring device 200 to move in a directional manner on the wire, and the controllable motor module 204 is controlled by the control module 205.
[0052] It is understandable that in the embodiment of the present application, the control module 205 is also connected to the second communication module 202, and the staff can send instructions to the second communication module 202 of the second test device 200 through the computer terminal 300 to control the second test module 200 to move in a directional manner.
[0053] When the second measuring device 200 needs to be recycled, a control instruction can be sent to the control module 205 of the second measuring device through the computer terminal 300 to control the second measuring module 200 to move to the line end for recycling.
[0054] It should be noted that, in the embodiment of the present application, the first measuring device 100 and the second measuring device 200 further include a temperature measuring module, and the temperature information is obtained through the temperature measuring module.
[0055] It is understandable that when the temperature rises, due to the thermal expansion and contraction properties of the material, the conductors of the overhead lines will stretch, and due to the elongation of the conductors, the sag of the conductors between the same spans will also increase. This reduces the distance of the conductors to the ground. In order to ensure safety, it is necessary to ensure that the conductors still have a sufficient safety distance to the ground when the temperature rises to avoid short-circuit accidents. On the contrary, when the temperature drops, the conductors will shrink, resulting in increased stress on the conductors, and the force of the conductors on the towers will also increase. Therefore, when measuring and adjusting the sag, it is also necessary to measure the temperature information.
[0056] It should be noted that, in the embodiment of the present application, the first measuring device 100 and the second measuring device 200 also include a wind speed measurement module, and the temperature measurement module is used to obtain wind speed information. It is understandable that when the wind blows towards the conductor, it will cause pressure on the conductor and increase the mechanical load of the conductor. This pressure is usually regarded as the horizontal load formed on the conductor and the tower when the wind blows perpendicular to the line. The sag will increase with the increase of wind speed. For example, for every 5m / s increase in wind speed, the sag will increase by about 0.04m to 7.96m. The specific value depends on the characteristics of the conductor and the environmental conditions. At the same time, a breeze can cause the vibration of the conductor. This vibration generates additional pressure in the conductor and causes the conductor to bend and deform repeatedly. In severe cases, it will cause the conductor to break or break. Strong winds can cause the conductor to dance, which is a vibration with a very low frequency and a large amplitude. This large-scale dance lasts for several hours, which is easy to cause phase-to-phase flashover, causing the line to trip and power outage or causing serious accidents such as burning the conductor. Therefore, it is also necessary to measure the wind speed while adjusting the measurement of the line sag.
[0057] It should be noted that, in one embodiment of the present application, in order to avoid the second measuring device 200 being not at the lowest point of the conductor due to wind blowing and affecting the sag measurement when the wind speed is high, the second measuring device 200 also includes a counterweight block for increasing its own weight.
[0058] By setting a counterweight, the second measuring device 200 will not be affected by the wind speed and will always be at the lowest point of the conductor. The weight of the counterweight can be selected according to actual conditions. For example, in areas with higher wind speeds, the weight of the counterweight can be appropriately increased, while in windless areas, the weight of the counterweight can be reduced or not used. The present application does not impose any restrictions on the selection of the weight of the counterweight.
[0059] It should be noted that, in the embodiment of the present application, the first measuring device is fixed on the support frame of the overhead line by screws or cable ties.
[0060] It can be understood that the first measuring device can be firmly fixed on the support frame by means of screws or cable ties, thereby effectively preventing the first measuring device from leaving its position due to wind or other reasons.
[0061] It should be noted that, in one embodiment of the present application, the first measuring device also includes a first power supply module, which is used to power the first measuring module; the second measuring device also includes a second power supply module, which is used to power the second measuring device.
[0062] The embodiments described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
[0063] Those skilled in the art will appreciate that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.
[0064] Those skilled in the art will appreciate that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices may be implemented as software, firmware, hardware, or a suitable combination thereof.
[0065] The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separated, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0066] Those skilled in the art will appreciate that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices may be implemented as software, firmware, hardware, or a suitable combination thereof.
[0067] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0068] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.
[0069] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
[0070] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0071] The preferred embodiments of the present disclosure are described above with reference to the accompanying drawings, but the scope of the rights of the present disclosure is not limited thereto. Any modification, equivalent substitution and improvement made by those skilled in the art without departing from the scope and essence of the present disclosure should be within the scope of the rights of the present disclosure.
Claims
1. An overhead line sag measurement system, characterized in that: include: A first measuring device, the first measuring device is fixedly arranged on a support frame of the overhead line and is used to determine first positioning information; a second measuring device, the second measuring device being arranged on a conductor of the overhead line and used for determining second positioning information; A computer terminal, used for acquiring the first positioning information and the second positioning information, and determining the overhead line sag information according to the first positioning information and the second positioning information; Wherein, the first measuring device is provided with a first satellite positioning module and a first communication module, the first measuring device determines the first positioning information through the satellite positioning module, and sends the first positioning information to the computer terminal through the first communication module; The first measuring device is provided with a second satellite positioning module and a second communication module. The second measuring device determines the second positioning information through the second satellite positioning module and sends the second positioning information to the computer terminal through the second communication module.
2. The overhead line sag measurement system according to claim 1, characterized in that: The second measuring device is further provided with a pulley module, and the second measuring device can be movably arranged on the wire through the pulley module.
3. The overhead line sag measurement system according to claim 2, characterized in that: The second measuring device is also provided with a controllable motor module and a control module. The pulley module and the control module are respectively connected to the controllable motor module. The controllable motor module is used to control the pulley module to drive the second measuring device to move in a directional manner on the wire. The controllable motor module is controlled by the control module.
4. The overhead line sag measurement system according to claim 1, characterized in that: The first measuring device and the second measuring device further include: A temperature measurement module is used to obtain temperature information.
5. The overhead line sag measurement system according to claim 1, characterized in that: The first measuring device and the second measuring device further include: A wind speed measurement module, wherein the wind speed measurement module is used to obtain wind speed information.
6. The overhead line sag measurement system according to claim 1, characterized in that: The first communication module and the second communication module are NRF communication modules.
7. The overhead line sag measurement system according to claim 1, characterized in that: The first measuring device further comprises a first power supply module, and the first power supply module is used to supply power to the first measuring device; The second measuring device further includes a second power supply module, and the second power supply module is used to supply power to the second measuring device.
8. The overhead line sag measurement system according to claim 1, characterized in that: The first satellite positioning module and the second satellite positioning module adopt GPS positioning.
9. The overhead line sag measurement system according to claim 1, characterized in that: The first measuring device is fixed on the supporting frame of the overhead line by screws or cable ties.
10. The overhead line sag measurement system according to claim 1, characterized in that: The second measuring device also includes: A counterweight used to increase your own weight.