Wire icing on-line monitoring and early warning equipment
By designing an online monitoring and early warning equipment for wire ice covering that integrates temperature and humidity air pressure sensors, supercooled fog measuring instruments, ultrasonic wind speed and direction sensors and supercooled rain measuring instruments, the problem that existing equipment cannot accurately monitor the spatial distribution and number concentration of supercooled rain and fog particles is solved, and accurate monitoring and early warning of the weight of wire ice covering and future predictions is achieved, and transmission line ice covering monitoring and early warning in the fields of power and transportation.
Patent Information
- Application Number
- CN202411893785.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-03-14
AI Technical Summary
Existing online monitoring and early warning equipment for wire ice covering cannot finely monitor the spatial distribution and number concentration of supercooled rain and fog particles, resulting in low forecast accuracy and ineffective prediction of the impact of wire ice covering, affecting the formulation of ice prevention plans.
An online monitoring and early warning device for wire ice covering is designed, including temperature and humidity air pressure sensors, supercooled fog measuring instruments, ultrasonic wind speed and direction sensors and supercooled rain measuring instruments. These sensors monitor relevant parameters in real time, and analyze data through built-in special software to accurately provide wire ice covering weight and future predictions.
Accurate monitoring of the collision rate, capture rate and freezing rate of supercool rain, fog and wires in wires during wire ice covering, improve the monitoring accuracy and prediction accuracy of wire ice covering weight, and support transmission line ice covering monitoring and early warning in the fields of electricity and transportation.
Smart Images
Figure CN119618315A_ABST
Abstract
Description
Technical Field
[0001] The patent of this invention belongs to the field of power and traffic security technology, and specifically relates to an online monitoring and early warning system for electric wire icing. Background Art
[0002] Electricity safety is related to the national economy and people's livelihood, and is an important guarantee for national security. The safe and reliable operation of national critical infrastructure is based on the continuous and stable supply of electricity. Once a large-scale power outage occurs, it may trigger a cross-domain chain reaction, resulting in major economic and property losses, and even cause social panic, endangering national security. However, developed countries such as the United States and Japan have long implemented strategic layouts in related fields. After long-term basic research and a large amount of resource investment, they are at the forefront of the world, while my country's technical foundation is still relatively weak. Therefore, in the "carbon peak and carbon neutrality" goals, higher requirements are also clearly put forward for power systems and equipment. It aims to accelerate basic theoretical research and key technology development, enhance the independent and controllable capabilities of core power equipment, and prevent the risk of supply chain blockage of key equipment in the power field. In order to better cope with this disaster, it is becoming increasingly important to dynamically monitor the entire process of ice coating on power lines and establish a prediction model. At present, in addition to relying on manual line inspection, the most widely used methods in my country mainly include methods based on mechanical models, simulated wire methods, image monitoring methods, etc. The core idea of these methods is to obtain the weight or thickness of ice covering the wires through certain means. That is to say, due to the limitations of observation methods and systems, the business departments currently only analyze and study the results of ice covering the wires, and have not conducted in-depth research on the causes of its occurrence and how to warn.
[0003] The icing of power lines is mainly affected by local weather conditions, and secondly, it has a certain relationship with the location and topography of the transmission line. When the temperature and humidity reach certain conditions, water droplets in the air will condense on the transmission lines to form ice. It is easier to form in some special weather conditions, such as supercooled rain, supercooled fog, etc., and supercooled water droplets and their diameter have an important influence on it. The weight of ice formed when the wind speed is different is also very different. Therefore, systematic observation of atmospheric humidity, temperature, wind speed, and supercooled rain (fog) helps to grasp the dynamics and causes of wire icing in real time and predict it. At present, there are mature products for temperature, humidity and wind speed measurement, but there is a lack of products and instruments for fine identification, spatial distribution and observation of microphysical parameters of solid and liquid phase particles in supercooled rain (fog), which leads to great difficulties in the current systematic observation, evaluation, prediction and early warning of freezing disasters. Therefore, the development of real-time online monitoring and early warning equipment for wire icing is of great significance to promoting the stable and safe operation of my country's power transmission system. Most of the existing online monitoring and early warning equipment for power line icing monitors wind direction, wind speed, atmospheric temperature and humidity. The data obtained are not detailed enough, especially the spatial distribution and number concentration of supercooled rain and fog particles cannot be effectively monitored. As a result, the collision rate, capture rate and freezing rate of supercooled rain and fog with power lines in power line icing cannot be obtained, resulting in low forecast accuracy, and the impact of icing cannot be effectively predicted, which seriously affects the formulation of icing prevention plans.
[0004] Invention patent content
[0005] The purpose of this patent is to provide the online monitoring and early warning equipment for ice coating on electric wires in real time and accurately provide the weight of ice coating on electric wires, as well as predict the future weight of ice coating on electric wires, so as to provide technical support for ice coating monitoring and early warning of power transmission lines in the power and transportation fields, and provide data guarantee for the power and transportation departments to formulate emergency plans.
[0006] To achieve the above purpose, the present invention provides an online monitoring and early warning device for electric wire ice coating, comprising a waterproof box with a built-in data processing system fixed on a support frame, and also comprising a temperature, humidity and air pressure sensor, a supercooled fog measuring instrument, an ultrasonic wind speed and direction sensor and a supercooled rain measuring instrument fixed on the top of the support frame;
[0007] The temperature, humidity and air pressure sensor and the ultrasonic wind speed and direction sensor are relatively fixed on both sides of the top of the support frame through a right-angle support rod;
[0008] The supercooled fog measuring instrument, the supercooled fog measuring instrument and the maximum supercooled rain measuring instrument are respectively fixed on the two ends of the transverse connecting rod; the transverse connecting rod is fixed on the top of the support frame and is located above the connection between the right-angle supporting connecting rod and the support frame; the transverse connecting rod and the right-angle supporting connecting rod are staggered.
[0009] The advantages of this method are: it can accurately provide the spatial distribution and number concentration of supercooled rain and fog particles, obtain the collision rate, capture rate and freezing rate of supercooled rain, fog and wires in the wire ice coating, and then accurately monitor the weight of wire ice coating. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a cross-sectional view of an online monitoring and early warning device for ice coating on electric wires.
[0011] Figure 2 This is a cross-sectional view of the supercooled rain measuring instrument.
[0012] Figure 3 It is a stereoscopic diagram of a supercooled rain measuring instrument.
[0013] Figure 4 This is a bottom view of the supercooled rain meter.
[0014] Figure 5 It is a schematic diagram of the end face of one end of the supercooled rain measuring instrument.
[0015] Figure 6 This is a cross-sectional view of the supercooled fog measuring instrument.
[0016] Figure 7 This is a stereoscopic diagram of a supercooled fog measuring instrument.
[0017] Description of reference numerals:
[0018] 1. Temperature, humidity and air pressure sensor; 2. Right-angle support rod; 3. Supercooled fog measuring instrument; 4. Waterproof box; 5. First fixed base; 6. Second fixed base; 7. Ultrasonic wind speed and direction sensor; 8. Supercooled rain measuring instrument; 9. Support frame; 10. Transverse connecting rod; 11. Cabin; 12. First support arm; 13. Second support arm; 14. Window glass pressure ring; 15. First window glass; 16. 45° reflector; 17. First laser assembly; 18. Lens group; 19. First camera; 20. First electric heating ring; 21. Battery compartment; 22. Control circuit board; 23. Memory; 24. RS422 communicator; 25. USB interface; 26. Memory power switch; 27. Type-C interface; 28. Power switch; 29. Battery compartment cover; 30. Power indicator light; 31. External power interface; 32. Program read and write interface; 33. RS422 communicator interface; 34. Battery pack; 35. Memory indicator light; 36. First fixing seat; 37. Shell; 38. Third support arm; 39. Fourth support arm; 40. Second fixing seat; 41. First protective cover; 42. Second protective cover; 43. First 45° angle reflector; 44. Second 45° angle reflector; 45. Second window glass; 46 Second electric heating ring; 47. Lens; 48. Second laser assembly; 49. Second camera; 50. Light barrier; 51. Mirror cover. DETAILED DESCRIPTION
[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose, the specific implementation methods, structural features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and examples.
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in this embodiment. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] In the description of the patent of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "aligned", "overlap", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the patent of the present invention 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, and therefore cannot be understood as a limitation on the patent of the present invention.
[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention patent, unless otherwise specified, "plurality" means two or more.
[0023] Figure 1 The figure shows an online monitoring and early warning device for ice coating on electric wires. The online monitoring and early warning device for ice coating on electric wires comprises a waterproof box 4 with a built-in data processing system fixed on a support frame 9, and also comprises a temperature, humidity and air pressure sensor 1, a supercooling fog measuring instrument 3, an ultrasonic wind speed and direction sensor 7 and a supercooling rain measuring instrument 8 fixed on the top of the support frame; wherein the temperature, humidity and air pressure sensor 1 and the ultrasonic wind sensor 7 are respectively fixed to the two sides of the top of the support frame 9 through a right-angle support link 2; and the supercooling fog measuring instrument 3 and the supercooling rain measuring instrument 8 are respectively fixed to the two ends of the transverse connecting rod 10; and the transverse connecting rod 10 is fixed to the top of the support frame 9 and is located above the connection between the right-angle support link 2 and the support frame 9, and the transverse connecting rod 10 and the right-angle support link 2 are staggered. Figure 1 The devices are arranged perpendicular to each other in the horizontal plane shown in the figure to minimize the impact on each other and ensure smooth air circulation around each device, which is beneficial to ensure the sensitivity and reliability of each device.
[0024] Figure 2 and Figure 3 The supercooled rain measuring instrument 8 shown includes a cabin 11 with an elliptical cross-section. This shape has good streamline, reduces disturbance to the surrounding air, reduces wind resistance and reduces the occurrence of fragmentation of surrounding particles, which is beneficial to improving the reliability and accuracy of equipment measurement.
[0025] Depend on Figure 3 It can be seen that the top of the cabin 11 is perpendicular to the major axis of the ellipse of the cross section, and the top is fixed with two first support arms 12 and second support arms 13 arranged opposite to each other, and a first fixing seat 36 fixedly connected to one end of the transverse link 10 is arranged on one side surface perpendicular to the minor axis of the ellipse of the cross section of the cabin 11; wherein the outer walls of the free ends of the first support arm 12 and the second support arm 13 away from the cabin 11 are both provided with Figure 2 The reflector cover plate 51 is tilted inward at an angle of 45°, and a window is arranged between the top of the inner wall of the free end and the top outer edge of the reflector cover plate 51, and the first window glass 15 is fixed on the window by the window glass pressing ring 14; the 45° reflector 16 is installed on the inner side of the reflector cover plate 51; the first laser assembly 17 is arranged in the first support arm 12; the lens group 18 and the first camera 19 are arranged in the second support arm 13, and the lens group 18 is located at the light entrance of the first camera 19. A first electric heating ring 20 is arranged on the inner side of the first window glass 15 to heat the air so that the temperature of the measured particles meets the most ideal detection temperature, which is conducive to ensuring the detection accuracy of the equipment.
[0026] Depend on Figure 2 It can be seen that a battery compartment 21, a control circuit board 22, a memory 23 and an RS422 communicator 24 are provided in the cabin 11; the battery compartment 21 and the memory 23 are electrically connected to the control circuit board 22 respectively; the RS422 communicator 24 is connected between the first camera 19 and the memory 23; the battery compartment 21, the control circuit board 22 and the memory 23 are distributed along the axial direction of the cabin 11, and the control circuit board 22 is located between the battery compartment 21 and the memory 23. Of course, the positions of the battery compartment and the control circuit board can also be swapped, and the settings can be adjusted according to specific needs.
[0027] The memory 23 is located at one end of the first camera 19 , and a USB interface 25 , a memory power switch 26 , and a Type-C interface 27 , which are respectively connected to the memory 23 , are disposed at the corresponding end of the cabin 11 at the one end.
[0028] The other end of the cabin 11 opposite to the end where the first camera 19 is located is provided with a power switch 28 connected to the battery compartment 21, a battery compartment cover 29 and a power indicator light 30; and the bottom end of the cabin 11 is provided with Figure 3 The external power supply interface 31 and the program read-write interface 32 are shown; Figure 4 The RS422 communicator interface 33 is arranged on one side of the cabin 11 at the center of the first fixing seat 36. The memory indicator light 36 is arranged Figure 5 One end of the nacelle 11 is shown.
[0029] Figure 6 The supercooled fog measuring instrument 3 shown in the figure comprises a housing 37 with an elliptical cross section, the top of which is perpendicular to the major axis of the ellipse of the cross section, and two third supporting arms 38 and fourth supporting arms 39 arranged opposite to each other are fixed to the top, and a side surface perpendicular to the minor axis of the ellipse of the cross section of the housing 37 is provided with Figure 7 The second fixing seat 40 is shown fixedly connected to the other end of the transverse link 10 .
[0030] Depend on Figure 6 It can be seen that a first protective cover 41 and a second protective cover 42 are respectively arranged on the opposite inner sides of the free ends of the third support arm 38 and the fourth support arm 39 away from the housing 37; a first 45° angle reflector 43 is arranged at the connection between the first protective cover 41 and the third support arm 38; a second 45° angle reflector 44 is arranged at the connection between the second protective cover 42 and the fourth support arm 39; a second window glass 45 and a second electric heating ring 46 located inside the second window glass 45 are arranged at the light entrance of the first protective cover 41 and the second protective cover 42; a lens 47 located on the incident light path of the second 45° angle reflector 44 is arranged in the second protective cover 42; a second laser assembly 48 is arranged in the third support arm 38; a second camera 49 is arranged in the fourth support arm 39. And a light bar 50 located at the light entrance of the second camera 49 is arranged in the fourth support arm 39.
[0031] The control circuit board, battery compartment, battery pack, memory, etc. in the shell of the supercooled fog measuring instrument 3 can be adjusted and set according to actual needs, and will not be described in detail here.
[0032] The online monitoring and early warning equipment for electric wire icing provided in the above embodiments is pre-placed or installed in the area to be measured, and the temperature, humidity and air pressure sensor 1, the supercooled fog measuring instrument 3, the ultrasonic wind speed and direction sensor 7 and the supercooled rain measuring instrument 8 installed thereon monitor the corresponding parameters in real time, and the acquired data is analyzed by the built-in special software to issue an early warning of the ice weight in the area to be measured.
Claims
1. An online monitoring and early warning device for electric wire ice coating, comprising a waterproof box (4) with a built-in data processing system fixed on a support frame (9), characterized in that: It also includes a temperature, humidity and air pressure sensor (1), a supercooled fog measuring instrument (3), an ultrasonic wind sensor (7) and a supercooled rain measuring instrument (8) fixed on the top of the support frame (9); The temperature, humidity and air pressure sensor (1) and the ultrasonic wind speed and direction sensor (7) are respectively fixed relatively to the two sides of the top of the support frame (9) via a right-angle support connecting rod (2); The supercooled fog measuring instrument (3) and the supercooled rain measuring instrument (8) are respectively fixed at two ends of the transverse connecting rod (10); The transverse connecting rod (10) is fixed on the top of the supporting frame (9) and is located above the connection between the right-angle supporting connecting rod (2) and the supporting frame (9); The transverse connecting rod (10) and the right-angle supporting connecting rod (2) are arranged alternately.
2. The online monitoring and early warning device for electric wire icing according to claim 1 is characterized by: The supercooled rain measuring instrument (8) comprises a cabin (11) with an elliptical cross section, the top of the cabin (11) being perpendicular to the major axis of the ellipse of the cross section, the top being fixed with two first supporting arms (12) and second supporting arms (13) arranged opposite to each other, and a first fixing seat (36) fixedly connected to one end of the transverse connecting rod (10) being arranged on a side surface perpendicular to the minor axis of the ellipse of the cross section of the cabin (11); The outer wall of the free end of the first support arm (12) and the second support arm (13) away from the cabin (11) is provided with a reflector cover plate (51) inclined inward at an angle of 45°, a viewing window is provided between the top of the inner wall of the free end and the top outer edge of the reflector cover plate (51), and a first viewing window glass (15) is fixed to the viewing window by a viewing window glass pressing ring (14); A 45° reflector (16) is installed on the inner side of the reflector cover plate (51); A first laser assembly (17) is arranged in the first support arm (12); A lens group (18) and a first camera (19) are arranged in the second supporting arm (13); the lens group (18) is located at the light entrance of the first camera (19).
3. The online monitoring and early warning device for electric wire icing according to claim 2 is characterized in that: A first electric heating ring (20) is arranged on the inner side of the first window glass (15).
4. The online monitoring and early warning device for electric wire icing according to claim 2 or 3 is characterized in that: The cabin (11) is provided with a battery compartment (21), a control circuit board (22), a memory (23) and an RS422 communicator (24); The battery compartment (21) and the memory (23) are electrically connected to the control circuit board (22) respectively; The RS422 communicator (24) is connected between the first camera (19) and the memory (23); The battery compartment (21), the control circuit board (22) and the memory (23) are distributed along the axial direction of the cabin (11), and the control circuit board (22) is located between the battery compartment (21) and the memory (23).
5. The online monitoring and early warning device for electric wire icing according to claim 4 is characterized in that: The memory (23) is located at one end of the first camera (19), and a corresponding end of the cabin (11) at the one end is provided with a USB interface (25), a memory power switch (26) and a Type-C interface (27) respectively connected to the memory (23).
6. The online monitoring and early warning device for electric wire icing according to claim 5 is characterized in that: The other end of the cabin (11) opposite to the one end is provided with a power switch (28) connected to the battery compartment (21), a battery compartment cover (29) and a power indicator light (30); The bottom end of the cabin (11) is provided with an external power supply interface (31) and a program reading and writing interface (32); An RS422 communicator interface (33) is provided on one side surface of the cabin (11) at the center of the first fixing seat (36).
7. The on-line monitoring and early warning device for electric wire icing according to claim 1 is characterized in that: The supercooled fog measuring instrument (3) comprises a shell (37) with an elliptical cross section, the top of the shell (37) being perpendicular to the major axis of the ellipse of the cross section, the top being fixed with two oppositely arranged third support arms (38) and fourth support arms (39), and a second fixing seat (40) fixedly connected to the other end of the transverse connecting rod (10) is provided on a side surface perpendicular to the minor axis of the ellipse of the cross section of the shell (37); A first protective cover (41) and a second protective cover (42) are respectively arranged on opposite inner sides of the free ends of the third supporting arm (38) and the fourth supporting arm (39) away from the housing (37); A first 45° angle reflector (43) is provided at the connection between the first protective cover (41) and the third support arm (38); A second 45° angle reflector (44) is provided at the connection between the second protective cover (42) and the fourth support arm (39); A second window glass (45) and a second electric heating ring (46) located inside the second window glass (45) are provided at the light entrance of the first protective cover (41) and the second protective cover (42); A lens (47) is arranged in the second protective cover (42) and is located on the light path of the incident light of the second 45° angle reflector (44); A second laser assembly (48) is disposed in the third support arm (38); A second camera (49) is arranged inside the fourth supporting arm (39).
8. The on-line monitoring and early warning device for electric wire icing according to claim 7 is characterized in that: A light barrier (50) is arranged in the fourth support arm (39) and is located at the light entrance of the second camera (49).