A health monitoring system for ultra-high voltage transmission towers with damage identification

Abstract

The present invention discloses an ultra-high voltage transmission tower health monitoring system with damage identification, comprising a data acquisition module, a data processing and analysis module, a damage identification and evaluation module, a health status monitoring and early warning module, a data storage and management module and a remote monitoring and maintenance module. The data acquisition module is arranged at a tower monitoring point and is used to obtain data on vibration, deformation and temperature of the tower structure. The data processing and analysis module is used to process and analyze the collected data to extract corresponding characteristic parameters and integrate them into actual data. The damage identification and evaluation module is used to identify and evaluate the damage existing in the tower body according to a preset damage model and health index by comparing with the actual data, wherein the damage types at least include cracks, looseness and corrosion. The present invention can monitor the health status of the tower structure in real time, and timely discover and repair potential damage problems to ensure the safety and sustainable development of power supply.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission towers, and in particular to an ultra-high voltage transmission tower health monitoring system capable of damage identification. Background Art

[0002] Ultra-high voltage transmission towers are important infrastructure for transmitting electric energy. They are usually used to convert high-voltage electric energy generated by power plants into low-voltage electric energy through substations and then distribute them to various cities and regions. Ultra-high voltage transmission towers are a vital component of the power system, and their design and operation have a significant impact on the reliability and stability of the power grid.

[0003] However, due to the long-term influence of various environmental factors (such as wind, temperature, humidity, etc.), ultra-high voltage transmission towers are at risk of damage and aging.

[0004] Therefore, the present invention provides an ultra-high voltage transmission tower health monitoring system with damage identification function, which can monitor the health status of the tower structure in real time, promptly discover and repair potential damage problems, so as to ensure the safety and sustainable development of power supply. Summary of the invention

[0005] In order to solve the technical problems raised in the above background technology, the present invention provides an ultra-high voltage transmission tower health monitoring system with damage identification.

[0006] The present invention is implemented by the following technical solution: A health monitoring system for ultra-high voltage transmission towers with damage identification, comprising:

[0007] A data acquisition module is arranged at the tower monitoring point to obtain data on the vibration, deformation and temperature of the tower structure;

[0008] The data processing and analysis module is used to process and analyze the collected data to extract the corresponding characteristic parameters and integrate them into actual data;

[0009] A damage identification and assessment module is used to identify and assess the damage to the tower body based on the preset damage model and health indicators by comparing with the actual data, where the damage types include at least cracks, looseness, and corrosion;

[0010] Health status monitoring and early warning module, which is used to monitor the health status of the ultra-high voltage transmission tower in real time according to the damage assessment results, and generate corresponding alarm or early warning signals;

[0011] A data storage and management module, which is used to store the collected actual data in a database for subsequent analysis and historical query; and

[0012] The remote monitoring and maintenance module is used to communicate with the remote monitoring center or maintenance team, transmit data and receive instructions through the network, and realize remote monitoring and maintenance of ultra-high voltage transmission towers.

[0013] As a further improvement of the above solution, the data acquisition module is a sensor body, and the sensor body at least includes an accelerometer, a strain gauge, and a temperature sensor.

[0014] As a further improvement of the above scheme, the sensor body is installed at the monitoring point of the tower body through a positioning device, and the positioning device includes a clamp adapted to be installed on the corresponding tower wall at the monitoring point of the tower body, and the clamp has two semi-annular clamp bodies, one end of the two clamp bodies are rotatably connected, and the other end is provided with a radially extending docking block, and a vertical arm is provided on the side of the two docking blocks away from the monitoring point of the tower body, and the sensor body is installed on the vertical arm, and a locking mechanism is provided on the vertical arm. The locking mechanism can realize the mutual locking between the two docking blocks while synchronously realizing the locking and fixation of the vertical arm on the two docking blocks.

[0015] As a further improvement of the above solution, a slot for the sensor body to be clamped is provided on the vertical arm.

[0016] As a further improvement of the above scheme, the locking mechanism includes a second cylinder, a connecting block is slidably provided at one end of the second cylinder, one end of the connecting block is fixed to the vertical arm, and a first cylinder that can rotate relative to the second cylinder is concentrically provided at the other end of the second cylinder, and a first internal thread is provided on the inner circumference of the first cylinder away from one end of the second cylinder, and the centrifugal sides of the two docking blocks are respectively bent in centrifugal arcs and provided with a first external thread that matches the first internal thread.

[0017] As a further improvement of the above scheme, a first clamping plate and a second clamping plate are respectively arranged opposite to each other on one side of the vertical arm away from the monitoring point of the tower body, and a clamping space for clamping and fixing the sensor body is formed between the first clamping plate and the second clamping plate. An action component is arranged in the vertical arm, and the action component is driven by the threaded connection between the first cylinder and the two docking blocks, and can guide the second clamping plate to move toward the first clamping plate.

[0018] As a further improvement of the above scheme, the action component includes a first connecting rod slidably inserted on the connecting block, one end of the first connecting rod is fixed inside the second cylinder, a third cylinder is rotatably arranged inside the vertical arm, the other end of the first connecting rod is inserted in the third cylinder, the inner wall of the third cylinder is axially opened with a spiral limit groove, the first connecting rod is provided with a limit block that is slidably engaged with the limit groove, the third cylinder is sleeved and fixed with a first bevel tooth, a screw rod parallel to the screw rod is rotatably arranged inside the vertical arm, one end of the screw rod is provided with a second bevel tooth that cooperates with the first bevel tooth, a movable plate is sleeved on the outer side thread of the screw rod near the other end, the movable plate is slidably engaged on the vertical arm as a whole, one side of the movable plate is connected to the second clamping plate by an elastic member, and the first clamping plate is fixed to the outer wall of the vertical arm.

[0019] As a further improvement of the above solution, a track groove is provided on the outer side wall of the vertical arm, and a track block is provided on the movable plate to slide and engage with the track groove.

[0020] As a further improvement of the above solution, the elastic member is a spring.

[0021] As a further improvement of the above solution, when the sensor body is installed on the vertical arm, the signal input end of the sensor body contacts the tower wall of the tower monitoring point.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The ultra-high voltage transmission tower health monitoring system with damage identification of the present invention can monitor the health status of the tower structure in real time, and promptly discover and repair potential damage problems to ensure the safety and sustainable development of power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of each module of the ultra-high voltage transmission tower health monitoring system with damage identification of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the local structure in which the sensor body in the data acquisition module is installed at the corresponding tower wall of the tower monitoring point;

[0026] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the part;

[0027] Figure 4 for Figure 2 A schematic diagram of the local structure in which the sensor body is installed on the corresponding tower wall of the tower monitoring point;

[0028] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of the sensor body being installed at the corresponding tower wall at the monitoring point of the tower body;

[0029] Figure 6 for Figure 5 The enlarged structural diagram at A in the middle;

[0030] Figure 7 for Figure 3 Schematic diagram of the enlarged structure at point B.

[0031] Description of main symbols:

[0032] 1. Tower monitoring point; 2. Sensor body; 3. Clamp; 4. Docking block; 5. First cylinder; 6. Second cylinder; 7. Connecting block; 8. Vertical arm; 9. Slot; 10. First clamping plate; 11. Second clamping plate; 12. First connecting rod; 13. Third cylinder; 14. Limit block; 15. Limiting groove; 16. First bevel gear; 17. Second bevel gear; 18. Screw; 19. Moving plate; 20. Groove; 21. Capsule; 22. Plug groove; 23. Piston; 24. Second connecting rod; 25. Pressure plate; 26. Docking plate; 27. Positioning ring. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0034] Example 1

[0035] Please combine Figures 1 to 7 The ultra-high voltage transmission tower health monitoring system with damage identification includes data acquisition module, data processing and analysis module, damage identification and assessment module, health status monitoring and early warning module, data storage and management module and remote monitoring and maintenance module.

[0036] A data acquisition module is arranged at the tower monitoring point 1 and is used to obtain data on the vibration, deformation and temperature of the tower structure;

[0037] The data processing and analysis module is used to process and analyze the collected data to extract the corresponding characteristic parameters and integrate them into actual data;

[0038] A damage identification and assessment module is used to identify and assess the damage to the tower body based on the preset damage model and health indicators by comparing with the actual data, where the damage types include at least cracks, looseness, and corrosion;

[0039] Health status monitoring and early warning module, which is used to monitor the health status of the ultra-high voltage transmission tower in real time according to the damage assessment results, and generate corresponding alarm or early warning signals;

[0040] The data storage and management module is used to store the collected actual data in the database for subsequent analysis and historical query;

[0041] The remote monitoring and maintenance module is used to communicate with the remote monitoring center or maintenance team, transmit data and receive instructions through the network, and realize remote monitoring and maintenance of ultra-high voltage transmission towers.

[0042] The data acquisition module is a sensor body 2, and the sensor body 2 at least includes an accelerometer, a strain gauge, and a temperature sensor.

[0043] In this embodiment, the sensor body 2 is installed at the tower monitoring point 1 through a positioning device, and the positioning device includes a clamp 3 adapted to be installed on the corresponding tower wall at the tower monitoring point 1.

[0044] The hoop 3 has two semi-annular hoop bodies, one end of the two hoop bodies is rotatably connected, and the other end is provided with a radially extending docking block 4. The two docking blocks 4 are provided with a vertical arm 8 on the side away from the tower monitoring point 1. The sensor body 2 is installed on the vertical arm 8, and a locking mechanism is provided on the vertical arm 8. The locking mechanism can realize the mutual locking between the two docking blocks 4 while synchronously realizing the locking and fixing of the vertical arm 8 on the two docking blocks 4, thereby realizing the installation of the sensor body 2 at the tower monitoring point 1, which is stable and reliable.

[0045] The vertical arm 8 is provided with a slot 9 for the sensor body 2 to be clamped. When the sensor body 2 is mounted on the vertical arm 8, the signal input end of the sensor body 2 contacts the tower wall of the tower monitoring point 1, so that the sensor body 2 can better obtain the corresponding signal data at the tower monitoring point 1.

[0046] The locking mechanism comprises a second cylinder 6 , one end of which is slidably provided with a connecting block 7 , one end of which is fixed on a vertical arm 8 , so that the second cylinder 6 can move axially relative to the vertical arm 8 through the connecting block 7 .

[0047] The other end of the second cylinder 6 is coaxially provided with a first cylinder 5 rotatable relative thereto, and the outer diameter of the first cylinder 5 is smaller than the outer diameter of the second cylinder 6 .

[0048] A first internal thread (not shown) is provided on the inner circumference of one end of the first cylinder 5 away from the second cylinder 6, and the centrifugal sides of the two docking blocks 4 are respectively bent in a centrifugal arc direction and provided with a first external thread (not shown) matching the first internal thread. When the two docking blocks 4 are initially docked, the first external threads on the separated sides of the two docking blocks 4 can be screwed together with the internal threads of the first cylinder 5 to achieve position locking of the two docking blocks 4 after initial docking, and can also achieve locking and fixing of the vertical arm 8 on the docking block 4.

[0049] A first clamping plate 10 and a second clamping plate 11 are respectively arranged opposite to each other on one side of the vertical arm 8 away from the tower monitoring point 1. A clamping space for clamping and fixing the sensor body 2 is formed between the first clamping plate 10 and the second clamping plate 11. An action component is arranged in the vertical arm 8. The action component is driven by the threaded connection between the first cylinder 5 and the two docking blocks 4, and can guide the second clamping plate 11 to move toward the first clamping plate 10 to clamp and fix the sensor body 2 on the vertical arm 8, which is stable and reliable.

[0050] The action component includes a first connecting rod 12 slidably inserted on the connecting block 7, one end of the first connecting rod 12 is fixed inside the second cylinder 6, a third cylinder 13 is rotatably arranged inside the vertical arm 8, the other end of the first connecting rod 12 is inserted in the third cylinder 13, and a spiral limiting groove 15 is axially opened on the inner wall of the third cylinder 13. A limiting block 14 that is slidably engaged with the limiting groove 15 is provided on the first connecting rod 12, and a first bevel gear 16 is sleeved and fixed on the third cylinder 13. A screw rod 18 parallel to the vertical arm 8 is rotatably arranged inside the vertical arm 8, and a second bevel gear 17 that cooperates with the first bevel gear 16 is provided at one end of the screw rod 18, and a movable plate 19 is sleeved on the outer thread near the other end of the screw rod 18. The movable plate 19 is slidably engaged on the vertical arm 8 as a whole, and one side of the movable plate 19 is connected to the second clamping plate 11 through an elastic member, and the first clamping plate 10 is fixed on the outer wall of the vertical arm 8.

[0051] A track groove (not shown) is provided on the outer wall of the vertical arm 8, and a track block (not shown) is provided on the movable plate 19 for sliding engagement with the track groove, so that the movable plate 19 can keep moving in the vertical direction under the action of the screw rod 18.

[0052] The elastic member is a spring, which can buffer the squeezing force of the clamping plate when it contacts the surface of the sensor body 2, thereby avoiding damage to the sensor body 2.

[0053] The steps for installing the sensor body 2 at the tower monitoring point 1 in this embodiment are as follows:

[0054] First, hold the hoop 3 on the outer side of the corresponding tower wall at the tower monitoring point 1, so that the two docking blocks 4 are close to each other to complete the preliminary docking, then insert the sensor body 2 into the slot 9 of the vertical arm 8, move the first cylinder 5 to the docking block 4, and screw it on the two docking blocks 4, so that the locking and fixing between the two docking blocks 4 can be completed so that the hoop 3 is firmly installed on the corresponding tower wall of the tower monitoring point 1, and the vertical arm 8 is installed and fixed on the docking block 4 to realize the installation and fixing of the sensor body 2 at the tower monitoring point 1. In addition, the first cylinder 5 is screwed on the docking block 4, the first connecting rod 12 can be driven axially by the second cylinder 6, so that the limiting block 14 rubs and squeezes the spiral limiting groove 15 in the third cylinder 13, forcing the third cylinder 13 to rotate, and the third cylinder 13 drives the first bevel gear 16, the second bevel gear 17, and the screw rod 18 to rotate, so that the movable plate 19 and the screw rod 18 act on each other in a threaded manner, and under the limiting action between the track block and the track groove, the second clamping plate 11 is driven to move toward the first clamping plate 10, so as to complete the clamping and fixing of the sensor body 2 in the clamping groove 9 of the vertical arm 8, which is stable and reliable.

[0055] Example 2

[0056] This embodiment is an improved solution of the embodiment 1. In order to further improve the fixing effect of the clamp 3 and the tower wall at the tower monitoring point 1, the inner circumference of the two clamp bodies of the clamp 3 of this embodiment is provided with a groove 20 in the arc direction. The notch of the groove 20 is covered with a capsule 21. A pressurized space is formed between the capsule 21 and the groove 20. The clamp body has a flow channel (not marked) connected to the groove 20, and the flow channel contains hydraulic oil. The centrifugal side of the docking block 4 is provided with a plug groove 22 connected to the flow channel, a piston 23 is provided in the plug groove 22, a second connecting rod 24 is provided on one side of the piston 23, and a pressure plate 25 for bearing the extrusion of the end of the first cylinder 5 is provided at one end of the second connecting rod 24. The side of the pressure plate 25 away from the plug groove 22 is radially provided with an arc-shaped docking plate 26. The centrifugal side of the docking plate 26 is provided with a second external thread (not shown in the figure), and the outer circumferential side of the second cylinder 6 is threadedly sleeved with a positioning ring 27, and the outer circumferential side of the second cylinder 6 is also provided with a second external thread. The inner circumference of the positioning ring 27 is provided with a second internal thread (not shown) that matches the second external thread.

[0057] The working mode of this embodiment is:

[0058] When the first cylinder 5 and the docking block 4 are screwed together, the axial movement of the first cylinder 5 during screwing will squeeze the pressure plate 25 and the second connecting rod 24, so that the piston 23 squeezes the hydraulic oil in the flow channel into the groove 20, forcing the capsule 21 to expand and deform and further clamp the tower wall at the tower monitoring point 1. Then, by screwing the positioning ring 27 toward the docking plate 26, the two sides of the inner circumference of the positioning ring 27 are screwed to the docking plate 26 and the second cylinder 6 respectively, so as to lock the position of the pressure plate 25 after moving, and then complete the installation and locking of the sensor body 2 at the tower monitoring point 1, which is stable, reliable, convenient and efficient.

[0059] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An ultra-high voltage transmission tower health monitoring system with damage identification, characterized in that: include: A data acquisition module is arranged at the tower monitoring point to obtain data on the vibration, deformation and temperature of the tower structure; The data processing and analysis module is used to process and analyze the collected data to extract the corresponding characteristic parameters and integrate them into actual data; A damage identification and assessment module is used to identify and assess the damage to the tower body based on the preset damage model and health indicators by comparing with the actual data, where the damage types include at least cracks, looseness, and corrosion; Health status monitoring and early warning module, which is used to monitor the health status of the ultra-high voltage transmission tower in real time according to the damage assessment results, and generate corresponding alarm or early warning signals; A data storage and management module, which is used to store the collected actual data in a database for subsequent analysis and historical query; and Remote monitoring and maintenance module, which is used to communicate with the remote monitoring center or maintenance team, transmit data and receive instructions through the network, and realize remote monitoring and maintenance of ultra-high voltage transmission towers; The data acquisition module is a sensor body, and the sensor body includes at least an accelerometer, a strain gauge, and a temperature sensor; The sensor body is installed at the monitoring point of the tower body through a positioning device, and the positioning device includes a hoop adapted to be installed on the corresponding tower wall at the monitoring point of the tower body, and the hoop has two semi-annular hoop bodies, one end of the two hoop bodies is rotatably connected, and the other end is provided with a radially extending docking block, and the two docking blocks are provided with a vertical arm on the side away from the monitoring point of the tower body, and the sensor body is installed on the vertical arm, and a locking mechanism is provided on the vertical arm, and the locking mechanism can realize the locking and fixing of the vertical arm on the two docking blocks while realizing the mutual locking between the two docking blocks; The locking mechanism comprises a second cylinder, one end of which is slidably provided with a connecting block, one end of which is fixed to the vertical arm, the other end of which is coaxially provided with a first cylinder that can rotate relative to the second cylinder, the inner circumference of the first cylinder away from one end of the second cylinder is provided with a first internal thread, and the centrifugal sides of the two docking blocks are respectively bent in centrifugal arcs and provided with first external threads that match the first internal threads; The side of the vertical arm away from the monitoring point of the tower body is respectively provided with a first clamping plate and a second clamping plate opposite to each other, a clamping space for clamping and fixing the sensor body is formed between the first clamping plate and the second clamping plate, and an action component is arranged in the vertical arm, and the action component is driven by the screw connection between the first cylinder and the two docking blocks, and can guide the second clamping plate to move toward the first clamping plate; The action component includes a first connecting rod slidably inserted on the connecting block, one end of the first connecting rod is fixed inside the second cylinder, a third cylinder is rotatably arranged inside the vertical arm, the other end of the first connecting rod is inserted in the third cylinder, the inner wall of the third cylinder is axially opened with a spiral limit groove, the first connecting rod is provided with a limit block that is slidably engaged with the limit groove, the third cylinder is sleeved and fixed with a first bevel tooth, a screw rod parallel to the screw rod is rotatably arranged inside the vertical arm, one end of the screw rod is provided with a second bevel tooth that cooperates with the first bevel tooth, a movable plate is sleeved on the outer side of the screw rod near the other end, the movable plate is slidably engaged on the vertical arm as a whole, one side of the movable plate is connected to the second clamping plate through an elastic member, and the first clamping plate is fixed to the outer wall of the vertical arm.

2. The ultra-high voltage transmission tower health monitoring system with damage identification according to claim 1, characterized in that: The vertical arm is provided with a slot for the sensor body to be clamped.

3. The ultra-high voltage transmission tower health monitoring system with damage identification according to claim 1, characterized in that: A track groove is provided on the outer side wall of the vertical arm, and a track block which is slidably engaged with the track groove is provided on the movable plate.

4. The ultra-high voltage transmission tower health monitoring system with damage identification according to claim 1, characterized in that: The elastic member is a spring.

5. The ultra-high voltage transmission tower health monitoring system with damage identification according to claim 1, characterized in that: When the sensor body is mounted on the vertical arm, the signal input end of the sensor body contacts the tower wall of the tower body monitoring point.

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