A power grid power plant management information platform based on digital twinning

Abstract

This invention discloses a power grid power plant management information platform based on digital twins, relating to the field of power grid technology. It includes a central processing unit (CPU) and monitoring modules, a twin modeling module, a scene display module, and a projection module that are communicatively connected to the CPU. Through the coordinated design of the monitoring module, scene display module, and CPU, this invention can detect electric shock victims immediately and mark the location of leakage current, thereby facilitating subsequent rescue efforts.

Description

Technical Field

[0001] This invention relates to the field of power grid technology, and more specifically to a power grid power plant management information platform based on digital twins. Background Technology

[0002] Currently, digital twin technology has been gradually applied in the power distribution network field. By creating a virtual digital grid based on the real power grid system, it enhances the monitoring of the power grid operation process and allows for timely access to information such as the safety status of the power grid. The digital grid is primarily driven by various next-generation digital technologies such as cloud computing, big data, the Internet of Things, mobile internet, artificial intelligence, and blockchain. It uses mobile internet and big data as key manufacturing elements and is based on the integration of modern power grid and energy networks with new-era information networks. Through advanced digital technologies, energy companies have achieved deep integration in their business and management, continuously improving the level of digitalization, networking, and intelligence. It reconstructs the people, events, and things of the physical power grid in the digital world, achieving a high degree of integration of energy flow, value flow, and information flow.

[0003] For example, Chinese invention patent application number 202311365316.6 discloses a digital power grid system based on digital twins, including a central processing unit, a data acquisition module, a monitoring device, a twin modeling module, a data transmission module, a scene display module, and a mobile terminal. The central processing unit is connected to the data acquisition module, the twin modeling module, and the data transmission module respectively. Although it can achieve efficient management and maintenance of power grid operation, it cannot quickly locate the position of the person who was electrocuted when the power grid leaks electricity, or mark the location of the leakage.

[0004] Therefore, it is necessary to propose a power grid power plant management information platform based on digital twins to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that existing power grid systems cannot quickly locate the position of a person who has been electrocuted and mark the location of the leakage when the power grid leaks.

[0006] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0007] A power grid power plant management information platform based on digital twins.

[0008] It includes a central processing unit and a monitoring module, a twin modeling module, a scene display module, and a projection module that communicate with the central processing unit;

[0009] The monitoring module includes a sensor detection module for collecting power grid parameters and a visual monitoring module for monitoring the physical condition of power plant personnel.

[0010] The twin modeling module is used to link physical data collected from sensors or CNC systems installed in the power grid system, virtual data read from virtual models and existing information systems, and to construct a power grid twin that combines the physical production elements of the power grid and their corresponding models and digital twin data.

[0011] The scene display module is used to display real-time information of the data monitored by the monitoring module on multiple screens;

[0012] When the sensor detection module detects a leakage in the power grid, it sends a signal to the central processing unit. The central processing unit retrieves the body status of people monitored by the visual monitoring module within a certain distance around the leakage location. A schematic line is drawn with the person's head as the starting point and the feet as the ending point. The central processing unit constructs the angle between the schematic line and the ground plane and judges the person's body status by the angle.

[0013] When constructing the angle, the central processing unit establishes a three-dimensional spatial coordinate system based on the position monitored by the visual monitoring module, and at the same time, it aligns the schematic line with the three-dimensional spatial coordinate system to establish the angle between the schematic line and the ground plane.

[0014] There are two physical states: electric shock and no electric shock;

[0015] In the case of electric shock, the angle is 0° and the indicated line does not move;

[0016] In the case where there is no electric shock, the angle is acute or the indicated line moves;

[0017] When the visual monitoring module detects a person who has been electrocuted, it sends a signal to the central processing unit, which then displays the content monitored by the visual monitoring module on the screen.

[0018] The projection module is used to project warning signals onto objects touched by the person who has been electrocuted.

[0019] When identifying objects, the central processing unit converts the personnel and their positions monitored by the visual monitoring module into a three-dimensional spatial coordinate system. When determining the intersection point, the central processing module determines the distance between the personnel and the object monitored by the visual monitoring module, selects the spatial model of the nearest object and keeps it, while hiding the spatial models of other objects. It analyzes the intersection point between the personnel's hands or feet and the nearest object, uses this point as the contact point, and extends the projection onto the solid model.

[0020] When there is no hand contact point, it is defined as electric shock at the feet of the person, that is, the projection module projects the image onto the part of the person's feet.

[0021] When there is a contact point between the hands, it is defined as electric shock to the person's hand, that is, the projection module projects the image onto the entity that the person's hand is in contact with.

[0022] Multiple displays are used to display real-time data monitored by the sensor detection module and images monitored by the visual monitoring module. When an electric shock is detected, the display is divided into two parts: one part displays the real-time image, and the other part displays the image of the person being shocked for the first 30 seconds in a loop.

[0023] Furthermore, a back plate is fixedly connected to the back of the display screen, and connecting plates are symmetrically rotatably connected to both ends of the back plate. A plug rod is fixedly connected to the end of the connecting plate away from the back plate. The display screen is mounted on a mounting frame, which includes a base plate, symmetrically detachably mounted support legs on the upper part of the base plate, and mounting rods rotatably connected to the support legs. The mounting rods rotate around the hinge point with the support legs toward the center of the base plate. Multiple plug holes are symmetrically opened on the side of the mounting rod away from the center of the base plate. When the mounting rod rotates to be parallel to the support legs, the plug holes are sleeved on the outside of the plug rods, and a support mechanism for temporarily fixing the relative position of the two mounting rods is provided between the two mounting rods. An adjustment mechanism for adjusting the tilt angle of the display screen is provided on the support mechanism.

[0024] Furthermore, the mounting rod has a U-shaped cross-section, and a storage groove for inserting the mounting rod is provided on one side of the support leg. A support block is provided at the hinge end of the mounting rod and the support leg. The support mechanism includes a support rod and clamping rods rotatably connected to both ends of the support rod. A circular groove for the support rod to rotate is provided at one end of the clamping rod facing the support rod. The lower end of the circular groove is connected to a through groove at the lower end of the clamping rod. The through groove is used for inserting the rod. The side of the clamping rod is in contact with the inner side of the mounting rod. The distance between the two clamping rods is equal to the distance between the two mounting rods when they are parallel to the support leg.

[0025] Furthermore, the diameter of the circular groove is greater than the width of the through groove, and an arc-shaped plate is fixedly connected to one end of the support rod facing the connecting plate. The outer side of the arc-shaped plate is flush with the outer side of the support rod, and the inner side of the arc-shaped plate is always in contact with the outer side of the insertion rod. When the clamping rod is inserted into the insertion rod, the axis of the insertion rod, the axis of the support rod, and the axis of the arc-shaped plate are all located on the same straight line.

[0026] Furthermore, a groove is provided on the support rod located at one end of the arc plate, and a protrusion is slidably connected in the groove. A limit rod is fixedly connected to the upper end of the protrusion, and the limit rod is inserted into the support rod. The end of the protrusion facing the connecting plate is located in the clamping rod, and the width of the protrusion is equal to the width of the through groove.

[0027] Furthermore, the adjustment mechanism includes a drive mechanism, a transmission mechanism, and a locking mechanism. The transmission mechanism includes arc-shaped internal toothed plates symmetrically hinged to the upper and lower ends of the back plate. When the ends of the two arc-shaped internal toothed plates away from the back plate are in contact, they form a semi-circular toothed ring. The axis of the toothed ring is on the same straight line as the axis of the hinge point of the back plate and the connecting plate.

[0028] Furthermore, the driving mechanism includes a round rod slidably connected to a support rod, a hollow gear rod fixedly connected to one end of the round rod, and a hollow rotating handle fixedly connected to the other end of the round rod. The gear rod is located inside a gear ring and meshes with the gear ring.

[0029] Furthermore, the locking mechanism includes an annular sleeve slidably connected to the round rod and a detachable double positioning rod disposed on the annular sleeve. The double positioning rod is inserted into the gear ring so that the gear ring and the gear rod are temporarily locked. A support ring for supporting the double positioning rod is fixedly connected to the support rod at the end of the double positioning rod away from the handle.

[0030] Furthermore, both the support ring and the annular sleeve are provided with polygonal holes for inserting the double positioning rods. The end of the double positioning rod away from the support ring is fixedly connected to a connecting rod. The side of the connecting rod facing the support ring is provided with an elastic clamping plate for temporarily fixing the connecting rod and the annular sleeve. The elastic clamping plate can be snapped onto the annular sleeve.

[0031] Furthermore, an L-shaped strip is fixedly connected to one end of the arc-shaped inner toothed plate away from the hinge point with the back plate. The L-shaped strips on the two arc-shaped inner toothed plates fit together to form a convex rod. The outer side of the convex rod is used to insert a connecting frame.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0033] 1. This invention, through the coordinated setup of the monitoring module, scene display module and central processing unit, can detect electric shock personnel in the first instance and mark the location of leakage, thereby facilitating subsequent rescue work.

[0034] 2. The present invention, through the cooperative arrangement of the connecting plate, the plug rod, the support mechanism and the other components, enables convenient installation of the display screen, which is much simpler to disassemble and repair than the bolt-fixed method used in the prior art.

[0035] 3. The present invention, through the setting of the support mechanism, can prevent the two mounting rods from shifting relative to each other. In addition, through the cooperation of the tension rod, the arc plate and the limiting rod, the position of the support mechanism itself can be fixed.

[0036] 4. The present invention, through the cooperative arrangement of the arc-shaped inner toothed plate, the L-shaped strip and the connecting frame, can, on the one hand, cooperate with the adjustment mechanism to realize the angle adjustment of the display screen, and on the other hand, can not interfere with the disassembly of the display screen.

[0037] 5. The present invention, through the cooperative arrangement between the round rod and the gear rod, can realize the meshing of the gear rod and the arc-shaped internal gear plate on the one hand, and can also realize the locking of the gear ring through the setting of the double positioning rod. Attached Figure Description

[0038] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention;

[0039] Figure 2 This is a three-dimensional rear view schematic diagram of the structure of the present invention;

[0040] Figure 3 This is a cross-sectional schematic diagram of a portion of the structure at the insertion point in this invention;

[0041] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0042] Figure 5 This is a three-dimensional separation diagram of the connection structure at the connecting plate, support rod, and clamping rod in this invention;

[0043] Figure 6 For the present invention Figure 5 A three-dimensional, upward-viewing diagram;

[0044] Figure 7 This is a three-dimensional schematic diagram of the connection structure at the adjustment mechanism in this invention;

[0045] Figure 8 For the present invention Figure 7 A schematic diagram of the three-dimensional side view of the connecting structure;

[0046] Figure 9 This is a three-dimensional schematic diagram of the connection structure at the round rod, the handle, the gear rod, and the double positioning rod in this invention.

[0047] Figure 10 This is a first perspective sectional view of the connection structure between the support leg and the base plate in this invention;

[0048] Figure 11 This is a second perspective sectional view of the connection structure between the support leg and the base plate in this invention.

[0049] Reference numerals: 1. Base plate; 2. Support leg; 3. Storage slot; 4. Mounting rod; 5. Support block; 6. Insertion hole; 7. Connecting plate; 8. Insert rod; 9. Support rod; 10. Clamping rod; 11. Through slot; 12. Circular slot; 13. Arc plate; 14. Groove; 15. Limiting rod; 16. Protrusion; 17. Round rod; 18. Rotating handle; 19. Gear rod; 20. Ring sleeve; 21. Connecting rod; 22. Double positioning rod; 23. Elastic clamping plate; 24. Display screen; 25. Back plate; 26. Arc-shaped internal toothed plate; 27. L-shaped strip; 28. Connecting frame; 29. ​​Support ring; 30. Slot; 31. Square rod; 32. Insertion block; 33. Horizontal groove; 34. First spring; 35. Limiting plate; 36. Longitudinal groove; 37. Second spring; 38. Longitudinal rod; 39. Horizontal rod; 40. Downward pressure rod. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Please see Figure 1-11 A power grid power plant management information platform based on digital twins includes a central processing unit and a monitoring module, a twin modeling module, a scene display module and a projection module that are connected to the central processing unit.

[0052] The monitoring module includes a sensor detection module for collecting power grid parameters and a visual monitoring module for monitoring the physical condition of power plant personnel.

[0053] The twin modeling module is used to link physical data collected from sensors or CNC systems installed in the power grid system, virtual data read from virtual models and existing information systems, and to construct a power grid twin that combines the physical production elements of the power grid and their corresponding models and digital twin data.

[0054] The scene display module is used to display the real-time information of the data monitored by the monitoring module on multiple displays (24);

[0055] When the sensor detection module detects a leakage in the power grid, it sends a signal to the central processing unit. The central processing unit retrieves the body status of people monitored by the visual monitoring module within a certain distance around the leakage location. A schematic line is drawn with the person's head as the starting point and the feet as the ending point. The central processing unit constructs the angle between the schematic line and the ground plane and judges the person's body status by the angle.

[0056] When constructing the angle, the central processing unit establishes a three-dimensional spatial coordinate system based on the position monitored by the visual monitoring module, and at the same time, it aligns the schematic line with the three-dimensional spatial coordinate system to establish the angle between the schematic line and the ground plane.

[0057] There are two physical states: electric shock and no electric shock;

[0058] In the case of electric shock, the angle is 0° and the indicated line does not move;

[0059] In the case where there is no electric shock, the angle is acute or the indicated line moves;

[0060] When the visual monitoring module detects a person who has been electrocuted, it sends a signal to the central processing unit, which then displays the content monitored by the visual monitoring module on the display screen (24).

[0061] The projection module is used to project warning signals onto objects touched by the person who has been electrocuted. The warning signals can be warning signs or corresponding text warning messages.

[0062] When identifying objects, the central processing unit (CPU) converts the personnel and their positions monitored by the visual monitoring module into a three-dimensional spatial coordinate system. Specifically, when determining the intersection point, the CPU determines the distance between the personnel and the object monitored by the visual monitoring module, selects and retains the spatial model of the nearest object, hides the spatial models of other objects, analyzes the intersection point between the personnel's hand or foot and the nearest object, uses this point as the contact point, and projects it onto the physical model; similar to the technology used in cars to use millimeter-wave radar to sense the position of personnel and display it on the car screen.

[0063] When there is no hand contact point, it is defined as electric shock at the feet of the person, that is, the projection module projects the image onto the part of the person's feet.

[0064] When there is a contact point between the hands, it is defined as a person's hand being electrocuted. The projection module projects the image onto the entity that the electrocuted person's hand is in contact with. This allows rescuers to accurately locate the electrocution point, ensuring the safety of on-site rescue and subsequent personnel.

[0065] Multiple displays (24) are used to display the real-time data monitored by the sensor detection module and the images monitored by the visual monitoring module. When an electric shock is detected, the display (24) is divided into two parts: one part displays the real-time image, and the other part displays the image of the person being shocked for the first 30 seconds in a loop. This allows the monitoring personnel to continuously pay attention to the leakage phenomenon at that location and analyze the leakage situation from the 30-second image. In addition, the 30-second time can be adjusted, and the image of the person being shocked for the first 10 seconds can also be displayed, depending on the situation.

[0066] The back of the display screen 24 is fixedly connected to a back plate 25 by screws. The back plate 25 is H-shaped. The two ends of the back plate 25 are symmetrically connected to a connecting plate 7 via a rotating axis. The end of the connecting plate 7 away from the back plate 25 is fixedly connected to a plug rod 8. The outer side of the plug rod 8 is circular, and the upper end of the plug rod 8 is flat.

[0067] The display screen 24 is mounted on a mounting frame, which includes a base plate 1, symmetrically and detachably mounted support legs 2 on the upper end of the base plate 1, and mounting rods 4 rotatably connected to the support legs 2. The mounting rods 4 rotate around the hinge point with the support legs 2 toward the center of the base plate 1, and can only rotate within the space between the two support legs 2. Multiple insertion holes 6 are symmetrically opened on the side of the mounting rods 4 away from the center of the base plate 1. The shape of the insertion holes 6 is larger than the outer side of the insertion rods 8. When installing the display screen 24, the operator lifts the display screen 24 and roughly adjusts its position. As the mounting rods 4 rotate to be parallel to the support legs 2, the position of the display screen 24 is adjusted synchronously. At this time, the insertion holes 6 are sleeved on the outer side of the insertion rods 8, and a support mechanism is provided between the two mounting rods 4 to temporarily fix the relative position of the two mounting rods 4, so that the mounting rods 4 and the support legs 2 as a whole will not deform. An adjustment mechanism for adjusting the tilt angle of the display screen 24 is provided on the support mechanism.

[0068] Combination Figure 10 and Figure 11 As shown, a plug-in block 32 is fixedly connected to the lower end of the support leg 2. A slot 30 for plugging the plug-in block 32 is provided on the base plate 1. The width of the slot 30 is at least twice the width of the plug-in block 32. A square rod 31 is fixedly connected to one end of the slot 30. A square hole matching the square rod 31 is provided in the middle of the plug-in block 32. Horizontal grooves 33 are symmetrically provided on both sides of the end of the slot 30 away from the square rod 31. A first spring 34 is fixedly connected in the horizontal groove 33. A limiting plate 35 is fixedly connected to the end of the first spring 34 facing the slot 30. The opposite side of the limiting plate 35 is fitted in an inverted V shape. A longitudinal groove 36 is symmetrically provided in the base plate 1. A second spring 37 is fixedly connected in the longitudinal groove 36. A longitudinal rod 38 is fixedly connected to the upper end of the second spring 37. A horizontal rod 39 is fixedly connected to the upper end of the longitudinal rod 38. A pressing rod 40 is fixedly connected to both ends of the horizontal rod 39. The lower ends of the pressing rod 40 and the plug-in block 32 are both inverted V shapes.

[0069] When installing the support leg 2, align the plug block 32 with the limiting plate 35, then press down on the plug block 32 so that the plug block 32 squeezes the limiting plate 35 and compresses the first spring 34 until the lower end of the support leg 2 is in contact with the upper end surface of the base plate 1. Then push the support leg 2 laterally so that the plug block 32 is inserted into the square rod 31. When the plug block 32 is fully inserted into the square rod 31, the limiting plate 35 will be reset under the action of the rebound force of the first spring 34.

[0070] When it is necessary to disassemble the support leg 2, the worker can step on the crossbar 39, so that the crossbar 39 drives the vertical bar 38 to squeeze the second spring 37, and at the same time drive the squeeze limit plate 35, so that the support leg 2 can be moved laterally to disassemble the support leg 2.

[0071] Specifically, in combination Figure 2 As shown, the cross-section of the mounting rod 4 is U-shaped, and the opening of the mounting rod 4 faces the center of the base plate 1. A storage groove 3 for inserting the mounting rod 4 is provided on one side of the support leg 2. The position of the storage groove 3 corresponds to the inner and outer walls of the mounting rod 4, so that the mounting rod 4 can rotate into the storage groove 3. A support block 5 is provided at the hinge end of the mounting rod 4 and the support leg 2. When the mounting rod 4 rotates to be parallel to the support leg 2, the bottom of the support block 5 supports the upper end of the support leg 2, thereby reducing the force at the hinge point of the mounting rod 4 and the support leg 2.

[0072] Specifically, as shown in Figure 3-6, the support mechanism includes a support rod 9 and clamping rods 10 rotatably connected to both ends of the support rod 9. The outer surface of the clamping rod 10 is flat, and the inner surface is an inverted U-shape. The U-shaped groove consists of two parts: one part is a circular groove 12, which is opened at the end of the clamping rod 10 facing the support rod 9 for the support rod 9 to rotate; the other part is a through groove 11, which is opened at the lower end of the clamping rod 10. The lower ends of the through groove 11 and the circular groove 12 are connected. The through groove 11 is used for the insertion rod 8 to pass through. When the insertion rod 8 passes through, the outer arc surface of the insertion rod 8 fits against the through groove 11, and the side of the clamping rod 10 fits against the inner surface of the mounting rod 4 to prevent the clamping rod 10 from rotating itself. The distance between the two clamping rods 10 is equal to the distance between the two mounting rods 4 when they are parallel to the support leg 2, which indirectly allows the mounting rod 4 to be pressed against the inner side of the connecting plate 7.

[0073] Specifically, as shown in Figure 3-6, the diameter of the circular groove 12 is larger than the width of the through groove 11. An arc-shaped plate 13 is fixedly connected to one end of the support rod 9 facing the connecting plate 7. The axis of the arc-shaped plate 13 is located on the axis of the support rod 9, so that the outer side of the arc-shaped plate 13 is flush with the outer side of the support rod 9. The inner side of the arc-shaped plate 13 always fits against the outer arc surface of the insertion rod 8. When the clamping rod 10 is inserted into the insertion rod 8, the axis of the insertion rod 8, the axis of the support rod 9, and the axis of the arc-shaped plate 13 are all on the same straight line, thereby enabling the support rod 9 to rotate in the circular groove 12.

[0074] Specifically, as shown in Figure 3-6, a groove 14 is provided on the support rod 9 located at one end of the arc plate 13. A protrusion 16 is slidably connected in the groove 14. The outer side of the protrusion 16 is an arc surface. A limiting rod 15 is fixedly connected to the upper end of the protrusion 16. The limiting rod 15 is inserted into the support rod 9. The limiting rod 15 is set to prevent the protrusion 16 from disengaging from the support rod 9. The end of the protrusion 16 facing the connecting plate 7 is located in the clamping rod 10, and the width of the protrusion 16 is equal to the width of the through groove 11. When the protrusion 16 slides into the groove 14, the arc surface of the outer side of the protrusion 16 is flush with the outer side of the support rod 9. When the protrusion 16 slides out of the groove 14, the two sides of the protrusion 16 fit into the through groove 11.

[0075] Specifically, as shown in Figures 7-9, the adjustment mechanism includes a drive mechanism, a transmission mechanism, and a locking mechanism. The drive mechanism drives the transmission mechanism, causing the transmission mechanism to rotate the display screen 24. The locking mechanism then locks the drive mechanism and the transmission mechanism, thereby locking the position of the display screen 24. The transmission mechanism includes arc-shaped inner toothed plates 26 symmetrically hinged to the upper and lower ends of the back plate 25. When the two arc-shaped inner toothed plates 26 are in contact with the hinged ends of the back plate 25, they form a semi-circular toothed ring. The axis of this toothed ring is on the same straight line as the axis of the hinge point of the back plate 25 and the connecting plate 7, so that when the drive mechanism drives the toothed ring to rotate, the toothed ring will not interfere with the back plate 25.

[0076] Specifically, as shown in Figure 7-9, the drive mechanism includes a round rod 17 slidably connected to the support rod 9, a hollow gear rod 19 fixedly connected to the end of the round rod 17, and a hollow handle 18 fixedly connected to the other end of the round rod 17. The round rod 17 can only slide on the support rod 9 on one side of the gear ring to adjust the meshing and disengagement of the gear rod 19 and the gear ring. The gear rod 19 is located inside the gear ring and meshes with the gear ring. When the gear drives the gear ring to rotate, the gear ring will drive the back plate 25 to rotate around the axis of the rotation shaft.

[0077] Specifically, as shown in Figure 7-9, the locking mechanism includes an annular sleeve 20 slidably connected to the round rod 17 and a double positioning rod 22 detachably mounted on the annular sleeve 20. The annular sleeve 20 can also rotate around the axis of the round rod 17. The double positioning rod 22 is inserted into the gear ring to temporarily lock the gear ring and the gear rod 19. By setting the double positioning rod 22, the rotation of the gear ring can be prevented. While preventing the rotation of the gear ring, the annular sleeve 20 can also be fixed. A support ring 29 for supporting the double positioning rod 22 is fixedly connected to the support rod 9 at the end of the double positioning rod 22 away from the handle 18. That is, it is set on the support rod 9 on the other side of the gear ring, which increases the stability of the locking of the double positioning rod 22 and slows down the deformation rate.

[0078] Specifically, as shown in Figure 7-9, both the support ring 29 and the annular sleeve 20 have polygonal holes for inserting the double positioning rods 22. The polygonal holes must allow the double positioning rods 22 to be inserted into them from one side and slide along them, and not be directly inserted from the outside of the annular sleeve 20. To facilitate the control of the double positioning rods 22, a connecting rod 21 is fixedly connected to the end of the double positioning rods 22 away from the support ring 29, connecting the double positioning rods 22 in parallel. The side of the connecting rod 21 facing the support ring 29 is provided with an elastic clamping plate 23 for temporarily fixing the connecting rod 21 and the annular sleeve 20. The elastic clamping plate 23 is plate-shaped and can be clamped onto the annular sleeve 20. The annular sleeve 20 has a notch for the elastic clamping plate 23 to be inserted into. The end of the elastic clamping plate 23 away from the support ring 29 is triangular and can be clamped onto the side of the annular sleeve 20.

[0079] Specifically, as shown in Figure 7, an L-shaped strip 27 is fixedly connected to the end of the arc-shaped inner toothed plate 26 away from the hinge point with the back plate 25. The L-shaped strips 27 on the two arc-shaped inner toothed plates 26 fit together to form a convex rod. The outer side of the convex rod is used to insert the connecting frame 28, locking the two arc-shaped inner toothed plates 26 into a semi-circular toothed ring.

[0080] Installation method: When installing the display screen 24, first lift the display screen 24 and preset the position of the display screen 24 so that the plug rods 8 on both sides of the display screen 24 correspond to the mounting rods 4. Then rotate the mounting rods 4. As the mounting rods 4 rotate, the plug hole 6 will approach the plug rod 8. At this time, the position of the display screen 24 needs to be adjusted so that the plug rod 8 can be inserted into the plug hole 6. After the plug rod 8 is inserted, the two mounting rods 4 are parallel to each other. Then insert the clamping rod 10 and the support rod 9 into the mounting rod 4 so that the opening of the clamping rod 10 faces downward. As the clamping rod 10 is inserted, it will be sleeved on the outside of the plug rod 8. Then, by rotating the support rod 9, the protrusion 16 can slide into the through groove 11 under the action of gravity. At this time, the arc plate 13 is located at the lower end of the plug rod 8, thereby wrapping the plug rod 8 between the clamping rod 10 and the arc plate 13.

[0081] After installation, align the L-shaped strip 27 on the arc-shaped inner toothed plate 26 and insert it into the connecting frame 28 to complete the installation of the toothed ring. Then, move the rotating handle 18 to move the gear rod 19 into the toothed ring so that the toothed ring and the gear rod 19 mesh. At this time, rotate the display screen 24 and the rotating handle 18 simultaneously to adjust the angle of the display screen 24. After adjustment, slide the annular sleeve 20 to insert the double positioning rod 22 into the teeth of the toothed ring and insert it into the polygonal hole on the support ring 29 to complete the temporary fixation of the toothed ring and the gear rod 19.

[0082] When disassembling, simply follow the reverse of the installation steps.

[0083] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A power grid power plant management information platform based on digital twins, characterized in that: It includes a central processing unit and a monitoring module, a twin modeling module, a scene display module, and a projection module that communicate with the central processing unit; The monitoring module includes a sensor detection module for collecting power grid parameters and a visual monitoring module for monitoring the physical condition of power plant personnel. The twin modeling module is used to link physical data collected from sensors or CNC systems installed in the power grid system, virtual data read from virtual models and existing information systems, and to construct a power grid twin that combines the physical production elements of the power grid and their corresponding models and digital twin data. The scene display module is used to display real-time information of the data monitored by the monitoring module on multiple screens; When the sensor detection module detects a leakage in the power grid, it sends a signal to the central processing unit. The central processing unit retrieves the body status of the personnel monitored by the visual monitoring module within a certain distance around the leakage location. A schematic line is drawn with the person's head as the starting point and the feet as the ending point. The central processing unit constructs the angle between the schematic line and the ground plane and judges the person's body status by the angle. When constructing the angle, the central processing unit establishes a three-dimensional spatial coordinate system based on the position monitored by the visual monitoring module, and at the same time, it aligns the schematic line with the three-dimensional spatial coordinate system to establish the angle between the schematic line and the ground plane. There are two physical states: electric shock and no electric shock; In the case of electric shock, the angle is 0° and the indicated line does not move; In the case where there is no electric shock, the angle is acute or the indicated line moves; When the visual monitoring module detects a person who has been electrocuted, it sends a signal to the central processing unit, which then displays the content monitored by the visual monitoring module on the screen. The projection module is used to project warning signals onto objects touched by the person who has been electrocuted. When identifying objects, the central processing unit converts the personnel and their positions monitored by the visual monitoring module into a three-dimensional spatial coordinate system. When determining the intersection point, the central processing module determines the distance between the personnel and objects monitored by the visual monitoring module, selects the spatial model of the nearest object and keeps it, while hiding the spatial models of other objects. It analyzes the intersection point between the personnel's hands or feet and the nearest object, uses this point as the contact point, and extends the projection onto the solid model. When there is no hand contact point, it is defined as electric shock at the feet of the person, that is, the projection module projects the image onto the part of the person's feet. When there is a contact point between the hands, it is defined as electric shock to the person's hand, that is, the projection module projects the image onto the entity that the person's hand is in contact with. Multiple displays are used to display real-time data monitored by the sensor detection module and images monitored by the visual monitoring module. When an electric shock is detected, the display is divided into two parts: one part displays the real-time image, and the other part displays the image of the person being shocked for the first 30 seconds in a loop.

2. The power grid power plant management information platform based on digital twinning according to claim 1, characterized in that: The back of the display screen is fixedly connected to a back plate. Connecting plates are symmetrically and rotatably connected to both ends of the back plate. A plug rod is fixedly connected to the end of the connecting plate away from the back plate. The display screen is mounted on a mounting frame, which includes a base plate, symmetrically and detachably mounted support legs on the upper part of the base plate, and mounting rods rotatably connected to the support legs. The mounting rods rotate around their hinge points with the support legs toward the center of the base plate. Multiple plug holes are symmetrically provided on the side of the mounting rods away from the center of the base plate. When the mounting rods rotate to be parallel to the support legs, the plug holes are fitted onto the outside of the plug rods. A support mechanism is provided between two mounting rods to temporarily fix their relative positions. An adjustment mechanism for adjusting the tilt angle of the display screen is provided on the support mechanism.

3. The power grid power plant management information platform based on digital twinning according to claim 2, characterized in that: The mounting rod has a U-shaped cross-section. One side of the support leg has a storage groove for inserting the mounting rod. The hinge end of the mounting rod and the support leg is provided with a support block. The support mechanism includes a support rod and clamping rods rotatably connected to both ends of the support rod. The end of the clamping rod facing the support rod has a circular groove for the support rod to rotate. The lower end of the circular groove is connected to a through groove at the lower end of the clamping rod. The through groove is used for inserting the rod. The side of the clamping rod is in contact with the inner side of the mounting rod. The distance between the two clamping rods is equal to the distance between the two mounting rods when they are parallel to the support leg.

4. The power grid power plant management information platform based on digital twinning of claim 3, characterized in that: The diameter of the circular groove is greater than the width of the through groove. An arc-shaped plate is fixedly connected to one end of the support rod facing the connecting plate. The outer side of the arc-shaped plate is flush with the outer side of the support rod. The inner side of the arc-shaped plate is always in contact with the outer side of the insertion rod. When the clamping rod is inserted into the insertion rod, the axis of the insertion rod, the axis of the support rod, and the axis of the arc-shaped plate are all on the same straight line.

5. The power grid power plant management information platform based on digital twinning according to claim 4, characterized in that: A groove is provided on the support rod located at one end of the arc plate, and a protrusion is slidably connected in the groove. A limit rod is fixedly connected to the upper end of the protrusion, and the limit rod is inserted into the support rod. The end of the protrusion facing the connecting plate is located in the clamping rod, and the width of the protrusion is equal to the width of the through groove.

6. The power grid power plant management information platform based on digital twinning according to claim 5, characterized in that: The adjustment mechanism includes a drive mechanism, a transmission mechanism, and a locking mechanism. The transmission mechanism includes arc-shaped internal toothed plates symmetrically hinged to the upper and lower ends of the back plate. When the ends of the two arc-shaped internal toothed plates away from the back plate are in contact, they form a semi-circular toothed ring. The axis of the toothed ring is on the same straight line as the axis of the hinge point of the back plate and the connecting plate.

7. The power grid power plant management information platform based on digital twinning according to claim 6, characterized in that: The driving mechanism includes a round rod slidably connected to a support rod, a hollow gear rod fixedly connected to the end of the round rod, and a hollow rotating handle fixedly connected to the other end of the round rod. The gear rod is located inside a gear ring and meshes with the gear ring.

8. The power grid power plant management information platform based on digital twinning according to claim 7, characterized in that: The locking mechanism includes an annular sleeve slidably connected to a round rod and a detachable double positioning rod disposed on the annular sleeve. The double positioning rod is inserted into a gear ring to temporarily lock the gear ring and the gear rod. A support ring for supporting the double positioning rod is fixedly connected to a support rod at the end of the double positioning rod away from the handle.

9. The power grid power plant management information platform based on digital twinning of claim 8, characterized in that: Both the support ring and the annular sleeve have polygonal holes for inserting the double positioning rods. The end of the double positioning rod away from the support ring is fixedly connected to a connecting rod. The side of the connecting rod facing the support ring is provided with an elastic clamping plate for temporarily fixing the connecting rod and the annular sleeve. The elastic clamping plate can be snapped onto the annular sleeve.

10. The power grid power plant management information platform based on digital twinning according to claim 9, characterized in that: An L-shaped strip is fixedly connected to one end of the arc-shaped inner toothed plate away from the hinge point with the back plate. The L-shaped strips on the two arc-shaped inner toothed plates fit together to form a convex rod. The outer side of the convex rod is used to insert the connecting frame.

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