Power grid power station management information platform based on digital twinning

Abstract

The invention discloses a power grid power station management information platform based on digital twinning, which relates to the technical field of power grids and comprises a central processing unit as well as a monitoring module, a twinning modeling module, a scene display module and a projection module which are in communication connection with the central processing unit. Through cooperative arrangement of the monitoring module, the scene display module and the central processing unit, an electric shock person can be found at the first time, and meanwhile, an electric leakage position can be marked, so that subsequent rescue work is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of power grid technology, and more specifically to a power grid power station management information platform based on digital twins. Background Art

[0002] At present, digital twin technology has gradually been applied in the field of distribution networks. Through the virtual digital grid based on the real power grid system, the monitoring of the power grid operation process is enhanced, and the safety status of the power grid operation and other information are timely grasped. Among them, the digital grid is mainly driven by various new generation digital technologies such as cloud computing, big data, the Internet of Things, mobile Internet, artificial intelligence and blockchain, with mobile Internet and big data as key manufacturing elements, and based on the combination of modern power grid networks and energy networks with the information network of the new era. Through the deep integration of advanced digital technology and energy companies in business and management, the level of digitalization, networking and intelligence is continuously improved. It reconstructs the people, things and objects of the physical power grid in the digital world, and realizes the high integration of energy flow, value flow and information flow.

[0003] For example, a Chinese invention patent with 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 respectively connected to the data acquisition module, the twin modeling module, and the data transmission module. Although it can realize efficient management and maintenance of the power grid operation, it cannot realize the rapid positioning of the person who is electrocuted when the power grid leaks and the identification of the leakage position when the power grid leaks.

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

[0005] The purpose of the present invention is to solve the problem that the existing power grid system is unable to quickly locate the position of a person who is electrocuted when the power grid leaks and mark the leakage position.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A power grid power station 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 are connected to the central processing unit in communication;

[0009] Monitoring modules, including a sensor detection module for collecting grid parameters and a visual monitoring module for monitoring the physical status of power station personnel;

[0010] The twin modeling module is used to link the physical data collected from sensors or numerical control systems installed in the power grid system, the virtual data read from the virtual model and the existing information system, and build a power grid twin that combines the physical production factors of the power grid and their corresponding models and digital twin data;

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

[0012] When the sensor detection module detects that there is leakage in the power grid station, it sends a signal to the central processor, and the central processor retrieves the physical status of the person monitored by the visual monitoring module within a certain distance around the leakage location, wherein a schematic line is drawn with the head of the person as the starting point and the feet as the end point, and the central processor constructs the angle between the schematic line and the ground plane, and judges the physical status of the person by the degree of the angle;

[0013] When constructing the angle, the central processor establishes a three-dimensional space coordinate system based on the position monitored by the visual monitoring module, and at the same time corresponds the schematic line to the three-dimensional space coordinate system to establish the angle between the schematic line and the ground plane;

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

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

[0016] In the non-electrically-shocked state, the angle is acute or the schematic line moves;

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

[0018] A projection module, used for projecting a warning signal onto an object touched by the person who has been electrocuted;

[0019] When determining an object, the central processing unit converts the person and the monitored position monitored by the visual monitoring module into a three-dimensional space coordinate system. When determining the intersection point, the central processing module determines the distance between the person and the object monitored by the visual monitoring module, selects the space model of the nearest object to be retained, and hides the space models of other objects. The intersection point between the person's hand or foot and the nearest object is analyzed, and this point is used as the electric shock point, and the projection is extended to the physical model.

[0020] When there is no intersection point between the hands, it is defined that the person is electrocuted at the feet, that is, the projection module projects the projection to the part of the feet of the person who is electrocuted;

[0021] When there is a junction point between the hands, it is defined that the person's hand is electrocuted, that is, the projection module projects the projection onto the entity that the hand of the person who is electrocuted touches;

[0022] Multiple display screens are used to display the real-time data monitored by the sensor detection module and the images monitored by the visual monitoring module. When a person is detected to be electrocuted, the display screen is divided into two parts, one part displays the real-time image, and the other part cyclically displays the image of the previous 30 seconds when the person is electrocuted.

[0023] Furthermore, a back panel is fixedly connected to the back of the display screen, and connecting plates are symmetrically and rotatably connected at both ends of the back panel, and an insertion rod is fixedly connected to the end of the connecting plate away from the back panel, and the display screen is set on a mounting frame, and the mounting frame includes a base plate, supporting legs symmetrically and detachably mounted on the upper end of the base plate, and a mounting rod rotatably connected to the supporting legs, and the mounting rod rotates toward the center of the base plate around a hinge point with the supporting legs, and a plurality of sockets are symmetrically provided on the side of the mounting rod away from the center of the base plate, and when the mounting rod is rotated to be parallel to the supporting legs, the sockets are sleeved on the outside of the insertion rod, and a supporting mechanism for temporarily fixing the relative positions of the two mounting rods is provided between the two mounting rods, and an adjustment mechanism for adjusting the inclination angle of the display screen is provided on the supporting mechanism.

[0024] Furthermore, the cross-section of the mounting rod is U-shaped, a storage groove for inserting the mounting rod is provided on one side of the supporting leg, a supporting block is provided at the hinged end of the mounting rod and the supporting leg, the supporting mechanism includes a supporting rod and a clamping rod rotatably connected to both ends of the supporting rod, a circular groove for rotating the supporting rod is provided at one end of the clamping rod facing the supporting rod, the lower end of the circular groove is connected to a through groove provided at the lower end of the clamping rod, the through groove is used for passing the insertion rod, the side surface of the clamping rod fits the inner side surface of the mounting rod, and the distance between the two clamping rods is equal to the distance when the two mounting rods are parallel to the supporting legs.

[0025] Furthermore, the diameter of the circular groove is larger 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 surface of the arc-shaped plate is flush with the outer side surface of the support rod, and the inner side surface of the arc-shaped plate always fits 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 at one end of the arc plate, a protrusion is slidably connected in the groove, the upper end of the protrusion is fixedly connected to a limiting rod, the limiting rod is inserted in the support rod, and one 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 driving mechanism, a transmission mechanism and a locking mechanism, and the transmission mechanism includes an arc-shaped internal tooth plate symmetrically hinged on the lower end of the back plate, and when the two ends of the arc-shaped internal tooth plates away from the back plate are fitted together, a semi-annular tooth ring is formed, and the axis of the tooth 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 the support rod, a hollow gear rod fixedly connected to the end of the round rod, and a hollow turning handle fixedly connected to the other end of the round rod, the gear rod is located in the gear ring, and the gear rod is meshed with the gear ring.

[0029] Furthermore, the locking mechanism includes an annular sleeve slidably connected to the round rod and a double positioning rod detachably arranged on the annular sleeve, the double positioning rod is inserted into the gear ring to temporarily lock the gear ring and the gear rod, and a support ring for supporting the double positioning rod is fixedly connected to the support rod at one end of the double positioning rod away from the turning handle.

[0030] Furthermore, polygonal holes for inserting double positioning rods are provided on the support ring and the annular sleeve, and a connecting rod is fixedly connected to one end of the double positioning rod away from the support ring. An elastic clip for temporarily fixing the connecting rod and the annular sleeve is provided on the side of the connecting rod facing the support ring, and the elastic clip can be clamped on the annular sleeve.

[0031] Furthermore, an L-shaped bar is fixedly connected to one end of the arc-shaped inner tooth plate away from the hinge point with the back plate, and the L-shaped bars on the two arc-shaped inner tooth plates fit together to form a convex rod, and the outer side of the convex rod is used for plugging the connection frame.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The present invention, through the coordinated setting between the monitoring module, the scene display module and the central processing unit, can find the person who is electrocuted in the first time and mark the leakage position, thereby facilitating subsequent rescue work.

[0034] 2. The present invention can realize convenient installation of the display screen through the coordination of the connecting plate, the plug rod, and the supporting mechanism, which is more convenient for disassembly and maintenance than the prior art method of fixing with bolts.

[0035] 3. The present invention can prevent the two mounting rods from being displaced relative to each other by setting up the supporting mechanism. In addition, the position of the supporting mechanism itself can be fixed by the cooperation of the tightening rod, the arc plate and the limiting rod.

[0036] 4. The present invention, through the coordinated arrangement between the arc-shaped internal tooth plate, the L-shaped strip and the connecting frame, can cooperate with the adjustment mechanism to achieve angle adjustment of the display screen, and can also avoid interfering with the disassembly of the display screen.

[0037] 5. The present invention can achieve the meshing of the gear rod and the arc-shaped internal gear plate through the matching arrangement between the round rod and the gear rod, and can also achieve the locking of the gear ring through the arrangement of the double positioning rods. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0040] Figure 3 It is a cross-sectional schematic diagram of a part of the structure at the insertion rod of the present invention;

[0041] Figure 4 For the present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0042] Figure 5 It is a three-dimensional separation schematic diagram of the connection structure of the connection plate, the support rod and the clamping rod in the present invention;

[0043] Figure 6 For the present invention Figure 5 A three-dimensional bottom-up schematic diagram of

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

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

[0046] Fig. 9 It is a three-dimensional schematic diagram of the connection structure of the round rod, the rotating handle, the gear rod and the double positioning rod in the present invention;

[0047] Fig.10 It is a first stereoscopic cross-sectional schematic diagram of the connection structure between the support leg and the bottom plate in the present invention;

[0048] Fig.11 It is a second stereoscopic cross-sectional schematic diagram of the connection structure between the support leg and the bottom plate in the present invention.

[0049] 1. bottom plate; 2. supporting leg; 3. storage slot; 4. mounting rod; 5. supporting block; 6. plug hole; 7. connecting plate; 8. plug rod; 9. supporting rod; 10. clamping rod; 11. through slot; 12. round slot; 13. arc plate; 14. groove; 15. limiting rod; 16. bump; 17. round rod; 18. turning handle; 19. gear rod; 20. annular sleeve; 21. connecting rod; 22. double positioning rod; 23. elastic card plate; 24. display screen; 25. back plate; 26. arc inner tooth plate; 27. L-shaped strip; 28. connecting frame; 29. ​​supporting ring; 30. slot; 31. square rod; 32. plug-in block; 33. transverse slot; 34. first spring; 35. limiting plate; 36. longitudinal slot; 37. second spring; 38. longitudinal rod; 39. transverse rod; 40. pressing rod. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of 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.

[0051] See also Figure 1-11 , a power grid power station management information platform based on digital twin, including a central processing unit and a monitoring module, a twin modeling module, a scene display module and a projection module which are in communication with the central processing unit;

[0052] Monitoring modules, including a sensor detection module for collecting grid parameters and a visual monitoring module for monitoring the physical status of power station personnel;

[0053] The twin modeling module is used to link the physical data collected from sensors or numerical control systems installed in the power grid system, the virtual data read from the virtual model and the existing information system, and build a power grid twin that combines the physical production factors of the power grid and their corresponding models and digital twin data;

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

[0055] When the sensor detection module detects that there is leakage in the power grid station, it sends a signal to the central processor, and the central processor retrieves the physical status of the person monitored by the visual monitoring module within a certain distance around the leakage location, wherein a schematic line is drawn with the head of the person as the starting point and the feet as the end point, and the central processor constructs the angle between the schematic line and the ground plane, and judges the physical status of the person by the degree of the angle;

[0056] When constructing the angle, the central processor establishes a three-dimensional space coordinate system based on the position monitored by the visual monitoring module, and at the same time corresponds the schematic line to the three-dimensional space coordinate system to establish the angle between the schematic line and the ground plane;

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

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

[0059] In the non-electrically-shocked state, the angle is acute or the schematic line moves;

[0060] When the visual monitoring module detects a person who has been electrocuted, it sends a signal to the central processor, and the central processor displays the content monitored by the visual monitoring module on a display screen (24);

[0061] A projection module, used to project a warning signal onto the object touched by the person who has been electrocuted, wherein the warning signal may be a sign of "beware of electric shock" or a corresponding text warning message;

[0062] When determining an object, the central processing unit converts the person and the monitored position monitored by the visual monitoring module into a three-dimensional space coordinate system. When determining the intersection point, the central processing module determines the distance between the person and the object monitored by the visual monitoring module, selects the spatial model of the nearest object to be retained, and hides the spatial models of other objects. The intersection point between the person's hand or foot and the nearest object is analyzed, and this point is used as the contact point, and the projection is extended to the physical model; this is similar to the technology of using millimeter wave radar on a car to sense the position of a person and display it on the car screen;

[0063] When there is no intersection point between the hands, it is defined that the person is electrocuted at the feet, that is, the projection module projects the projection to the part of the feet of the person who is electrocuted;

[0064] When there is a hand-joint point, it is defined that the person's hand is electrocuted, that is, the projection module projects the projection onto the entity that the hand of the person who is electrocuted touches; it enables the rescuer to accurately locate the electric shock position, ensuring the safety of on-site rescue and the safety of subsequent personnel;

[0065] The plurality of display screens (24) are respectively used to display the real-time data monitored by the sensor detection module and the images monitored by the visual monitoring module. When it is detected that a person is electrocuted, the display screen (24) is divided into two parts for display, one part displays the real-time image, and the other part cyclically displays the image of the person 30 seconds before the person is electrocuted. In this way, the monitoring personnel can continuously pay attention to the leakage phenomenon at the location and can also analyze the leakage situation from the 30 seconds of the image. In addition, the 30 seconds time can be adjusted, and the image of the person 10 seconds before the person is electrocuted can also be displayed, depending on the specific situation.

[0066] The back of the display screen 24 is fixedly connected with a back plate 25 by screws. The back plate 25 is in an H shape as a whole. The two ends of the back plate 25 are symmetrically connected to the connecting plate 7 through the rotation axis. The end of the connecting plate 7 away from the back plate 25 is fixedly connected with a plug rod 8. The outer side surface of the plug rod 8 is circular, and the upper end of the plug rod 8 is flat.

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

[0068] Combination Fig.10 and Fig.11 As shown, a plug-in block 32 is fixedly connected to the lower end of the supporting leg 2, and a slot 30 for plugging the plug-in block 32 is provided on the bottom plate 1, wherein the width of the slot 30 is at least equal to 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, and transverse 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 transverse groove 33, the first spring 34 is fixedly connected to a limit plate 35 at one end facing the slot 30, and the opposite side of the limit plate 35 is fitted in an inverted V shape, and longitudinal grooves 36 are symmetrically provided in the bottom plate 1, and a second spring 37 is fixedly connected in the longitudinal groove 36, and a longitudinal rod 38 is fixedly connected to the upper end of the second spring 37, and a transverse rod 39 is fixedly connected to the upper end of the longitudinal rod 38, and a downward pressing rod 40 is fixedly connected to both ends of the horizontal rod 39, and the lower ends of the downward pressing rod 40 and the plug-in block 32 are both in an inverted V shape;

[0069] When installing the support leg 2, the plug-in block 32 is aligned with the limit plate 35, and then the plug-in block 32 is pressed down, so that the plug-in block 32 squeezes the limit 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 bottom plate 1, and then the support leg 2 is pushed sideways to insert the plug-in block 32 into the square rod 31. When the plug-in block 32 is completely inserted into the square rod 31, the limit plate 35 is reset under the action of the rebound force of the first spring 34;

[0070] When the support leg 2 needs to be disassembled, the staff can step on the cross bar 39 with their feet, so that the cross bar 39 drives the longitudinal bar 38 to squeeze the second spring 37, and at the same time drives the squeezing limit plate 35, so that the support leg 2 can move laterally and the support leg 2 can be disassembled.

[0071] Specific, combined 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 side of the base plate 1. A storage groove 3 for inserting the mounting rod 4 is provided on one side of the supporting leg 2. The position of the storage groove 3 corresponds to the inner and outer side walls of the mounting rod 4, so that the mounting rod 4 can be rotated into the storage groove 3. A support block 5 is provided at the hinged end of the mounting rod 4 and the supporting leg 2. When the mounting rod 4 is rotated to be parallel to the supporting leg 2, the bottom of the support block 5 is supported on the upper end of the supporting leg 2, thereby reducing the force on the hinge between the mounting rod 4 and the supporting leg 2.

[0072] Specifically, in combination with shown in 3-6, the supporting mechanism includes a supporting rod 9 and a clamping rod 10 rotatably connected to both ends of the supporting rod 9. The outer side surface of the clamping rod 10 is a plane, and the inner side 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 one end of the clamping rod 10 facing the supporting rod 9 for the supporting rod 9 to rotate, and the other part is a through groove 11, which is opened at the lower end of the clamping rod 10. The through groove 11 is connected to the lower end of the circular groove 12, and the through groove 11 is used to pass the insertion rod 8. When passing the insertion rod 8, the outer arc surface of the insertion rod 8 fits the through groove 11, and the side surface of the clamping rod 10 fits the inner side 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 when the two mounting rods 4 are parallel to the supporting leg 2, which can indirectly enable the mounting rod 4 to be pressed tightly against the inner side of the connecting plate 7.

[0073] Specifically, as shown in combination 3-6, the diameter of the circular groove 12 is greater than the width of the through groove 11, and 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 surface of the arc-shaped plate 13 is flush with the outer side surface of the support rod 9, and the inner side surface of the arc-shaped plate 13 always fits 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 located on the same straight line, thereby enabling the support rod 9 to rotate in the circular groove 12.

[0074] Specifically, as shown in combination 3-6, a groove 14 is provided on the support rod 9 at one end of the arc plate 13, and a protrusion 16 is slidably connected in the groove 14. The outer side of the protrusion 16 is an arc-shaped surface, and the upper end of the protrusion 16 is fixedly connected to a limit rod 15, which is inserted into the support rod 9. The setting of the limit rod 15 is used to prevent the protrusion 16 from detaching 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-shaped surface on the outer side of the protrusion 16 is flush with the outer side surface of the support rod 9. When the protrusion 16 slides out of the groove 14, the two sides of the protrusion 16 fit the through groove 11.

[0075] Specifically, as shown in Figures 7-9, the adjustment mechanism includes a driving mechanism, a transmission mechanism and a locking mechanism. The driving mechanism drives the transmission mechanism, so that the transmission mechanism drives the display screen 24 to rotate, and then the driving mechanism and the transmission mechanism are locked by the locking mechanism, thereby locking the position of the display screen 24. The transmission mechanism includes an arc-shaped internal tooth plate 26 symmetrically hinged at the upper and lower ends of the back plate 25. When the two arc-shaped internal tooth plates 26 are away from the hinged end of the back plate 25 and fit together, a semi-annular tooth ring is formed. The axis of the tooth 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 driving mechanism drives the tooth ring to rotate, the tooth ring will not interfere with the back plate 25.

[0076] Specifically, as shown in Figures 7-9, the driving 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 turning 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 engagement and separation of the gear rod 19 and the gear ring. The gear rod 19 is located in the gear ring and the gear rod 19 is engaged 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 rotating shaft.

[0077] Specifically, in combination with Figures 7-9, the locking mechanism includes an annular sleeve 20 slidably connected to the round rod 17 and a double positioning rod 22 detachably arranged 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 gear ring can be prevented from rotating. While preventing the gear ring from rotating, the annular sleeve 20 can also be fixed. The double positioning rod 22 is fixedly connected to the support rod 9 at one end away from the turning handle 18, and a support ring 29 for supporting the double positioning rod 22 is arranged on the support rod 9 on the other side of the gear ring, which increases the locking stability of the double positioning rod 22 and slows down the deformation rate.

[0078] Specifically, as shown in Figures 7-9, both the support ring 29 and the annular sleeve 20 are provided with polygonal holes for plugging in the double positioning rod 22. The polygonal holes need to satisfy the requirement that the double positioning rod 22 can only be plugged into it from one side and slide along it, but cannot be directly inserted from the outside of the annular sleeve 20. In order to facilitate the control of the double positioning rod 22, a connecting rod 21 is fixedly connected to the end of the double positioning rod 22 away from the support ring 29, and the double positioning rods 22 are connected in parallel. An elastic clip 23 for temporarily fixing the connecting rod 21 and the annular sleeve 20 is provided on the side of the connecting rod 21 facing the support ring 29. The elastic clip 23 is in the shape of a plate and can be clipped onto the annular sleeve 20. A notch is provided on the annular sleeve 20 for the elastic clip 23 to be plugged in. The end of the elastic clip 23 away from the elastic clip 23 is triangular and can be clipped onto the side of the annular sleeve 20.

[0079] Specifically, as shown in combination with 7, an L-shaped strip 27 is fixedly connected to one end of the arc-shaped internal tooth plate 26 away from the hinge point with the back plate 25, and the L-shaped strips 27 on the two arc-shaped internal tooth plates 26 fit together to form a convex rod, and the outer side of the convex rod is used to plug in the connecting frame 28, thereby locking the two arc-shaped internal tooth plates 26 into a semi-annular gear ring.

[0080] Installation method: When installing the display screen 24, first lift the display screen 24, pre-set the position of the display screen 24, so that the insertion rods 8 on both sides of the display screen 24 correspond to the installation rods 4, and then rotate the installation rods 4. As the installation rods 4 rotate, the sockets 6 will be close to the insertion rods 8. At this time, it is necessary to adjust the position of the display screen 24 so that the insertion rods 8 can be inserted into the sockets 6. When the insertion of the insertion rods 8 is completed, the two installation rods 4 are parallel to each other. At this time, the clamping rod 10 and the support rod 9 are inserted into the installation 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 insertion 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 insertion rod 8, so that the insertion rod 8 is wrapped between the clamping rod 10 and the arc plate 13;

[0081] After the installation is completed, the L-shaped strip 27 on the arc-shaped inner tooth plate 26 is fitted together, and the connecting frame 28 is inserted to complete the installation of the gear ring. Then, the turning handle 18 is moved to move the gear rod 19 into the gear ring so that the gear ring and the gear rod 19 are meshed. At this time, the display screen 24 and the turning handle 18 are synchronously rotated to adjust the angle of the display screen 24. After the adjustment is completed, the annular sleeve 20 is slid, and the double positioning rod 22 is inserted between the teeth on the gear ring, and at the same time, the double positioning rod 22 is inserted into the polygonal hole on the support ring 29 to complete the temporary fixation of the gear ring and the gear rod 19.

[0082] When disassembling, just follow the opposite direction of the installation steps.

[0083] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A power grid power station management information platform based on digital twins, characterized by: It 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 in communication; Monitoring modules, including a sensor detection module for collecting grid parameters and a visual monitoring module for monitoring the physical status of power station personnel; The twin modeling module is used to link the physical data collected from sensors or numerical control systems installed in the power grid system, the virtual data read from the virtual model and the existing information system, and build a power grid twin that combines the physical production factors of the power grid and their corresponding models and digital twin data; A scene display module is used to display the real-time information of the data monitored by the monitoring module on multiple display screens; When the sensor detection module detects that there is leakage in the power grid power station, it sends a signal to the central processor, and the central processor retrieves the physical status of the person monitored by the visual monitoring module within a certain distance around the leakage location, wherein a schematic line is drawn with the head of the person as the starting point and the feet as the end point, and the central processor constructs the angle between the schematic line and the ground plane, and judges the physical status of the person by the degree of the angle; When constructing the angle, the central processor establishes a three-dimensional space coordinate system based on the position monitored by the visual monitoring module, and at the same time corresponds the schematic line to the three-dimensional space coordinate system to establish the angle between the schematic line and the ground plane; There are two types of physical states: electric shock and no electric shock; In the case of electric shock, the angle is 0° and the schematic line does not move; In the non-electrically-shocked state, the angle is acute or the schematic line moves; When the visual monitoring module detects a person who has been electrocuted, it sends a signal to the central processor, which then displays the content monitored by the visual monitoring module on the display screen; A projection module, used for projecting a warning signal onto an object touched by the person who has been electrocuted; When determining an object, the central processing unit converts the person and the monitored position monitored by the visual monitoring module into a three-dimensional space coordinate system. When determining the intersection point, the central processing module determines the distance between the person and the object monitored by the visual monitoring module, selects the spatial model of the nearest object to be retained, and hides the spatial models of other objects. The intersection point between the person's hand or foot and the nearest object is analyzed, and this point is used as the electric shock point, and the projection is extended to the physical model. When there is no intersection point between the hands, it is defined that the person is electrocuted at the feet, that is, the projection module projects the projection to the part of the feet of the person who is electrocuted; When there is a junction point between the hands, it is defined that the person's hand is electrocuted, that is, the projection module projects the projection onto the entity that the hand of the person who is electrocuted touches; Multiple display screens are used to display the real-time data monitored by the sensor detection module and the images monitored by the visual monitoring module. When a person is detected to be electrocuted, the display screen is divided into two parts, one part displays the real-time image, and the other part cyclically displays the image of the previous 30 seconds when the person is electrocuted.

2. A power grid power station management information platform based on digital twin according to claim 1, characterized in that: The back of the display screen is fixedly connected to a back plate, and both ends of the back plate are symmetrically rotatably connected to connecting plates, and one end of the connecting plate away from the back plate is fixedly connected to a plug rod, and the display screen is set on a mounting frame, and the mounting frame includes a base plate, supporting legs symmetrically and detachably mounted on the upper end of the base plate, and a mounting rod rotatably connected to the supporting legs, the mounting rod rotates toward the center of the base plate around a hinge point with the supporting legs, and a plurality of sockets are symmetrically provided on a side of the mounting rod away from the center of the base plate, and when the mounting rod is rotated to be parallel to the supporting legs, the sockets are sleeved on the outside of the plug rod, and a supporting mechanism for temporarily fixing the relative positions of the two mounting rods is provided between the two mounting rods, and an adjustment mechanism for adjusting the inclination angle of the display screen is provided on the supporting mechanism.

3. A power grid power station management information platform based on digital twin according to claim 2, characterized in that: The cross-section of the mounting rod is U-shaped, and a storage groove for inserting the mounting rod is provided on one side of the supporting leg. A supporting block is provided at the hinged end of the mounting rod and the supporting leg. The supporting mechanism includes a supporting rod and a clamping rod rotatably connected to both ends of the supporting rod. The clamping rod is provided with a circular groove for rotating the supporting rod at one end facing the supporting rod, and the lower end of the circular groove is connected to a through groove provided at the lower end of the clamping rod, and the through groove is used for passing the insertion rod. The side surface of the clamping rod fits the inner side surface of the mounting rod, and the distance between the two clamping rods is equal to the distance when the two mounting rods are parallel to the supporting legs.

4. A power grid power station management information platform based on digital twin according to claim 3, characterized in that: The diameter of the circular groove is larger 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 surface of the arc-shaped plate is flush with the outer side surface of the support rod. The inner side surface of the arc-shaped plate always fits 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.

5. A power grid power station management information platform based on digital twin according to claim 4, characterized in that: A groove is provided on the support rod at one end of the arc-shaped plate, a protrusion is slidably connected in the groove, the upper end of the protrusion is fixedly connected to a limiting rod, the limiting rod is inserted in 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. A power grid power station management information platform based on digital twin according to claim 5, characterized in that: The adjustment mechanism includes a driving mechanism, a transmission mechanism and a locking mechanism. The transmission mechanism includes an arc-shaped internal tooth plate symmetrically hinged on the lower end of the back plate. When the two ends of the arc-shaped internal tooth plates away from the back plate are fitted together, a semi-annular tooth ring is formed. The axis of the tooth ring is on the same straight line as the axis of the hinge point of the back plate and the connecting plate.

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

8. A power grid power station management information platform based on digital twin according to claim 7, characterized in that: The locking mechanism includes an annular sleeve slidably connected to the round rod and a double positioning rod detachably arranged on the annular sleeve. The double positioning rod is inserted into the 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 the support rod at one end of the double positioning rod away from the turning handle.

9. A power grid power station management information platform based on digital twin according to claim 8, characterized in that: The support ring and the annular sleeve are both provided with polygonal holes for inserting 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 clip for temporarily fixing the connecting rod and the annular sleeve. The elastic clip can be clipped onto the annular sleeve.

10. A power grid power station management information platform based on digital twin according to claim 9, characterized in that: An L-shaped bar is fixedly connected to one end of the arc-shaped inner tooth plate away from the hinge point with the back plate. The L-shaped bars on the two arc-shaped inner tooth plates fit together to form a convex rod, and the outer side of the convex rod is used for plugging the connection frame.

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