CN115588332A - Electric power overhauls training platform based on AR technique - Google Patents

Abstract

The invention is an electric power maintenance training platform based on AR technology, which belongs to the technical field of electric power training. Its technical solution is an electric power maintenance training platform based on AR technology, including a training simulation platform and a head-mounted AR device. The training simulation platform includes a training bracket assembly with a circular ladder assembly installed on it, and a large sprocket is installed on the training simulation platform. , the circulation ladder assembly is installed on the large sprocket, and a speed regulating device is installed between the training simulation platform and the circulation ladder assembly; an angular displacement sensor is installed between the large sprocket and the training simulation platform, and the head-mounted AR device can display the high-altitude environment . The beneficial effect of the present invention is that, through the training simulation platform set up, combining the training simulation platform with the head-mounted AR device can help students simulate the real power tower climbing environment, so that students can experience the reality more safely and personally. While training practical maintenance skills, students can better understand the actual maintenance environment.

Description

An electric power maintenance training platform based on AR technology

technical field

The invention relates to the technical field of electric power training, in particular to an electric power maintenance training platform based on AR technology.

Background technique

The skill training of electric power maintenance can be learned in school, but in the actual power maintenance work, the operator needs to climb a higher power tower before performing the actual maintenance operation of the power, so the high place in the actual work process There is a big difference between the operating environment and the operation in the classroom during skill training, which is greatly affected by external environmental factors. Operations that can be easily completed in the classroom may become difficult due to factors such as gestures and space factors in the actual work process. Therefore, in the school's skill training, it is impossible to train students in actual work, and they can only watch the actual maintenance operation in the form of video, which makes the student experience poor and cannot be personally on the scene, resulting in students operating during the actual operation. There is a large gap between the experience and the training process, which affects the quality of maintenance, cannot complete the maintenance tasks, and even threatens the personal safety of students.

Contents of the invention

Aiming at the problem that the classroom environment cannot fully simulate the actual operation environment in the current electric power maintenance training, the present invention provides an electric power maintenance training platform based on AR technology.

In order to solve the above problems, the technical solution adopted by the present invention is, an electric power maintenance training platform based on AR technology, including a training simulation platform and a head-mounted AR device, the training simulation platform includes a training bracket assembly, and the training bracket assembly includes a floor stand, Two long runner brackets are relatively arranged on the floor support, and a circulation ladder assembly is installed between the two long runner brackets. The circulation ladder assembly includes two chains, and a certain number of ladder bars are arranged between the two chains. Both the upper and lower ends of the runner bracket are provided with large sprockets, and the two chains are respectively encircled and engaged with the corresponding large sprockets, and a speed regulating device is arranged between the two long runner brackets and the chains; the big sprocket and the long An angular displacement sensor is provided between the wheel brackets, and the head-mounted AR device is connected to the signal of the angular displacement sensor. The head-mounted AR device can display the high-altitude environment and dynamically change according to the signal of the angular displacement sensor. The climbing operation is simulated within the safe height range through the circular ladder, and the AR equipment is used to improve the authenticity of the environment, so that students can practice the operation in a close to the actual working environment, improve the proficiency of the actual operation and the adaptability to the high-altitude environment, and comprehensively improve The operation level of the students ensures the safety and maintenance quality of the students after the actual operation.

Preferably, the chain includes a certain number of chain links, one end of the chain link is provided with a protruding part, and the other end of the chain link is provided with a recessed part, and the protruding part of the chain link is located in the recessed part of the adjacent chain link and passes through the rotating shaft. Hinged, multiple chain links form a ring, the two ends of the ladder bar are fixedly connected to the corresponding chain links in the two chains, and the middle part of the chain link is provided with a meshing hole for meshing with the teeth of the large sprocket.

Preferably, the speed regulating device includes a deceleration assembly, the deceleration assembly includes a deceleration housing, a first compression spring and a friction strip, the deceleration housing is fixedly installed on the long runner bracket, the chain passes through the deceleration housing, and the friction strips are located at both ends of the chain. side, the first compression spring is arranged between the friction strip and the inner wall of the deceleration housing, one end of the first compression spring is fixedly connected with the inner wall of the deceleration housing, and the other end of the first compression spring is connected to the side of the friction strip facing away from the chain. The side is fixedly connected, and the first compression spring compresses the friction strip against the side of the chain. Friction deceleration is achieved by pressing the chain in the middle through the friction strips on both sides.

Preferably, the speed regulating device also includes a straight ladder limit assembly, and the straight ladder limit assembly includes a straight ladder semi-enclosed casing fixedly arranged on the long runner bracket, and the openings of the two straight ladder semi-enclosed casings are oppositely arranged, and the straight ladder semi-enclosed An embedded shell is embedded and fixed in the shell, and the embedded shell is provided with a first bar-shaped groove, a fan-shaped groove and a second bar-shaped groove from top to bottom, and the center of the fan-shaped groove is located at the lower end of the first bar-shaped groove. The fan-shaped groove is recessed towards the bottom of the groove half-enclosed by the ladder, and the limit piece that can slide up and down in the first bar-shaped groove, the fan-shaped groove and the second bar-shaped groove is installed in the embedded housing. The limit piece includes a rotating Limiting part, the side of the chain facing away from the ladder bar is provided with a plurality of contact pressure heads, the contact pressure heads are evenly distributed along the chain, the contact pressure heads abut against the rotation limit part, when the rotation limit part is located in the fan-shaped groove, the rotation limit The bit part is out of contact with the contact pressure head. When the circulation ladder assembly is moving, the rotation limiter supports the contact pressure head and prevents the circulation ladder assembly from running too fast. When affected by the climbing action of the students, the pressure on the contact pressure head increases and the rotation limiter is pressed down to the position of the fan-shaped groove. , due to the loss of the resistance of the bottom of the first bar-shaped groove, the rotation limiter rotates into the fan-shaped groove, and at this time the contact pressure head can continue to move down, and then the circulating ladder assembly continues to run. This structure can automatically adapt to students' climbing The instantaneous pressure change on the circulating ladder components caused by the center change and other reasons during the action makes the climbing process more smooth.

Preferably, the limiter also includes a long pull rod, the rotation limiter is installed at the lower end of the long pull rod, the rotation limiter includes a rotating bracket and an arc-shaped contact housing installed at the bottom of the rotation bracket, and the rotation bracket is hinged to the lower end of the long pull rod , the bottom surface of the arc-shaped contact housing is an arc-shaped surface and is suitable for the arc-shaped surface of the fan-shaped groove. catch.

Preferably, a second magnet is provided on the inner surface of the fan-shaped groove, and a first magnet is provided on the side of the rotating bracket facing away from the chain, and the first magnet and the second magnet attract each other. When the rotating bracket moves down to the position of the fan-shaped groove, it can actively rotate in the fan-shaped groove.

Preferably, the bottom surface of the arc-shaped contact housing is provided with a protruding post on the side close to the chain, the lower end of the protruding post is a spherical surface, and the bottom surface of the fan-shaped groove is provided with rounded corners on the side close to the chain. Stop when the limiter rises, so that it will not rotate excessively in the direction of the chain and affect the operation of the chain.

Preferably, the speed regulating device further includes a pressurizing assembly, and the pressurizing assembly includes a control member slidingly installed inside the deceleration housing, the control member is located between the friction strip and the inner wall of the deceleration housing, and the upper surface of the control member is in contact with the deceleration housing. There is a stretch spring between the top surface of the inner cavity, and the two ends of the stretch spring are fixedly connected with the control part and the deceleration housing respectively, and the side of the friction strip facing the control part is provided with oblique protrusions, two oblique protrusions The distance between them gradually increases from top to bottom. There are two inclined blocks on the side of the control part facing the friction strip. The two inclined blocks are arranged in the shape of "eight". The protuberances are slidably arranged in the chute respectively, and the control part is connected with the limit part. When the circulating ladder component drives the limiter to move down, the oblique block cooperates with the obliquely convex friction strips on both sides to apply pressure to the middle, so as to increase the friction between the friction strip and the chain, and enhance the deceleration effect, so that the device can be used according to the student's The difference in body weight, climbing speed, and action posture can adaptively adjust the deceleration effect.

Preferably, the top of the long pull rod is fixedly connected with a horizontal bracket, the bottom surface of the control member is provided with a non-elastic stay cord, the bottom end of the non-elastic stay cord is fixedly connected to the upper surface of the horizontal bracket, and the upper surface of the horizontal bracket is also provided with a reinforcing bracket. The reinforcing bracket and the long pull rod are set in line. To improve the strength of the limiter, the reinforced bracket cooperates with the long pull rod to guide in the embedded housing together, so that the limiter slides more smoothly.

Preferably, the speed regulating devices on the two long wheel supports are vertically staggered. Reduce the stuttering feeling during the climbing process, and make the circular ladder assembly closer to the fixed setting of the climbing ladder in the actual environment.

It can be seen from the above technical solutions that the advantages of the present invention are: through the training simulation platform provided, combining the training simulation platform with the head-mounted AR device can help students simulate the real wire tower climbing environment, and can automatically Factors such as the student's weight, climbing posture and other factors adjust the running speed of the circulating ladder components, so that students can experience the actual power maintenance work more safely and personally. While training the actual maintenance skills, students can better understand the actual Improve the psychological quality and ability to respond to emergencies in the high-altitude environment, so as to provide more comprehensive training for students based on electric learning, improve the overall quality after taking up the job, ensure the personal safety of students, and improve the quality of maintenance.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings that need to be used in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. As far as people are concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

Fig. 1 is a schematic structural diagram of a training simulation platform in a specific embodiment of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the circulating ladder assembly in the specific embodiment of the present invention.

FIG. 3 is an enlarged view of A in FIG. 2 .

Fig. 4 is a cross-sectional view of the internal structure of the embedded housing in the specific embodiment of the present invention.

FIG. 5 is an enlarged view of B in FIG. 4 .

FIG. 6 is an enlarged view at point C of FIG. 4 .

FIG. 7 is an enlarged view at D of FIG. 4 .

Fig. 8 is a schematic structural diagram of a deceleration assembly in a specific embodiment of the present invention.

Fig. 9 is a first structural schematic diagram of a pressurizing assembly in a specific embodiment of the present invention.

Fig. 10 is a second structural schematic diagram of a pressurizing assembly in a specific embodiment of the present invention.

Fig. 11 is a schematic diagram of the connection structure between the oblique clamping block and the oblique projection in the present invention.

In the figure: 1. training simulation platform, 2. training bracket assembly, 21. floor support, 22. long wheel support, 23. large sprocket, 3. circulation ladder assembly, 31. chain link, 32. rotating shaft, 321 .Contact pressure head, 33. Engagement hole, 34. Ladder bar, 4. Straight ladder limit assembly, 41. Straight ladder semi-enclosed shell, 42. Embedded shell, 43. First bar-shaped groove, 44. Fan-shaped groove , 45. The second strip groove, 5. Limiting piece, 51. Long pull rod, 52. Horizontal bracket, 53. Reinforcing bracket, 54. Rotating bracket, 55. Arc-shaped contact housing, 56. The first magnet, 57 .second magnet, 58. boss, 59. fillet, 6. deceleration assembly, 61. deceleration housing, 62. first compression spring, 63. friction strip, 7. pressurization assembly, 71. control part, 72 .Extension spring, 73. Non-elastic drawstring, 74. Oblique block, 75. Oblique protrusion.

detailed description

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in this specific embodiment. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

As shown in Figure 1-3, a power maintenance training platform based on AR technology includes a training simulation platform 1 and a head-mounted AR device. The training simulation platform 1 includes a training bracket component 2, and the training bracket component 2 includes a floor stand 21. Two long runner brackets 22 are relatively arranged on the floor support 21, and a circulation ladder assembly 3 is installed between the two long runner brackets 22. The circulation ladder assembly 3 includes two chains, and a certain number of ladders are arranged between the two chains. Rod 34, the upper and lower ends of the two long runner brackets 22 are provided with large sprockets 23, and the two chains are respectively encircled and engaged on the large sprockets 23 on the corresponding sides. The chains include a certain number of chain links 31, and the chain links 31 One end of the chain link 31 is provided with a protruding part, and the other end of the chain link 31 is provided with a recessed part. The protruding part of the chain link 31 is located in the recessed part of the adjacent chain link and is hinged by the rotating shaft 32. A plurality of chain links 31 form a ring shape. The two ends of the ladder bar 34 are fixedly connected to the chain links 31 at the corresponding positions in the two chains respectively. The middle part of the chain links 31 is provided with an engaging hole 33 which is engaged with the teeth of the large sprocket 23. The two long runner brackets 22 are connected with the chain There is a speed regulating device between them, and the speed regulating devices on the two long wheel supports 22 are vertically staggered:

As shown in Figure 4-11, the speed regulating device includes a deceleration assembly 6. The deceleration assembly 6 includes a deceleration housing 61, a first compression spring 62 and a friction strip 63. The deceleration housing 61 is fixedly installed on the long runner bracket 22, and the chain Through the deceleration housing 61, the friction strip 63 is located on both sides of the chain, the first compression spring 62 is arranged between the friction strip 63 and the inner side wall of the deceleration housing 61, and one end of the first compression spring 62 is connected to the inner side of the deceleration housing 61 The wall is fixedly connected, and the other end of the first compression spring 62 is fixedly connected with the side of the friction strip 63 facing away from the chain, and the first compression spring 62 presses the friction strip 63 against the side of the chain;

The speed regulating device also includes a straight ladder limit assembly 4, and the straight ladder limit assembly 4 includes a straight ladder semi-enclosed shell 41 fixedly arranged on the long runner bracket 22, and the openings of the two straight ladder semi-enclosed shells 41 are arranged oppositely, and the straight ladder half encloses the shell 41. A built-in casing 42 is embedded and fixed in the semi-surrounding shell 41, and a first strip-shaped groove 43, a fan-shaped groove 44 and a second strip-shaped groove 45 are sequentially arranged in the built-in casing 42 from top to bottom, and the center of the circle of the fan-shaped groove 44 Located at the lower end of the first bar-shaped groove 43, the fan-shaped groove 44 is recessed toward the bottom of the groove that the ladder half surrounds the shell 41, and the first bar-shaped groove 43, the fan-shaped groove 44 and the second bar-shaped groove are installed in the embedded housing 42. The stopper 5 that slides up and down in the shaped groove 45, the stopper 5 includes a rotation stopper, and the side of the chain facing away from the ladder bar 34 is provided with a plurality of contact pressure heads 321, the contact pressure heads 321 are evenly distributed along the chain, and the contact pressure The head 321 abuts against the rotation limiting part. When the rotation limiting part is located in the fan-shaped groove 44, the rotation limiting part is out of contact with the contact pressure head. The limiting part 5 also includes a long pull rod 51. The lower end of 51, the rotation limiting portion comprises a rotating bracket 54 and an arc-shaped contact housing 55 installed on the bottom of the rotating bracket. The rotating bracket 54 is hinged with the lower end of the long pull rod 51. Compatible with the arc-shaped surface of the fan-shaped groove 44, the arc-shaped contact housing 55 is arranged on the side of the rotating bracket 54 facing the chain, the contact pressure head abuts against the top surface of the arc-shaped contact housing 55, and the inner surface of the fan-shaped groove 44 is set. There is a second magnet 57, a first magnet 56 is provided on the side of the rotating bracket 54 facing away from the chain, the first magnet 56 and the second magnet 57 attract each other, and a protruding post is provided on the bottom surface of the arc-shaped contact housing 55 near the chain 58, the lower end of the boss 58 is a spherical surface, and the bottom surface of the fan-shaped groove 44 is provided with a rounded corner 59 near the side of the chain;

The speed regulating device also includes a pressurizing assembly 7, and the pressurizing assembly 7 includes a control member 71 slidingly installed inside the deceleration housing 61. The control member 71 is located between the friction strip 63 and the inner wall of the deceleration housing 61, and the upper surface of the control member 71 is A tension spring 72 is arranged between the surface and the top surface of the inner cavity of the deceleration housing 61, and the two ends of the tension spring 72 are fixedly connected with the control part 71 and the deceleration housing 61 respectively, and the friction strip 63 is provided on the side facing the control part 71. There are oblique protrusions 75, and the distance between the two oblique protrusions 75 gradually increases from top to bottom. The side of the control piece 71 facing the friction strip 63 is provided with two oblique clamping blocks 74, and the two oblique clamping blocks 74 form a The "eight" shape is set, and the oblique block 74 is provided with a chute, and the two oblique projections 75 are respectively slidably arranged in the chute. Support 52, the bottom surface of control part 71 is provided with non-elastic stay cord 73, and the bottom end of non-elastic stay cord 73 is fixedly connected on the upper surface of cross support 52, and the upper surface of cross support 52 is also provided with reinforcement support 53, and reinforcement support 53 and The long pull rods 51 are collinearly arranged.

An angular displacement sensor is provided between the large sprocket 23 and the long wheel bracket 22, and the head-mounted AR device is connected to the signal of the angular displacement sensor. The head-mounted AR device can display the high-altitude environment and dynamically change according to the signal of the angular displacement sensor. Yes, when the reading of the angular displacement sensor changes, it means that the student is climbing. According to the angle change a of the angular displacement sensor, the linear displacement d of the circular ladder assembly is obtained. The linear displacement d=aR, where R is the large sprocket 23 The linear displacement d is the simulated climbing height of the students. According to the change of field of view of the climbing height in the actual situation, the display content of the head-mounted AR device can be adaptively changed, and the initial height can be further set to make When students start climbing, they can simulate the actual environment at a certain height.

The operating principle of the training simulation platform is: let the students wear the head-mounted AR device and start climbing. During the climbing process, the chain rotates with the climbing action. At this time, it is necessary to make the ladder bar 34 move downward with A certain amount of resistance requires the ladder bar 34 to move downwards and the speed will decrease, that is, the first compression spring 62 applies a thrust to the friction strip 63, so that the friction strip 63 can be tightly attached to the outside of the chain link 31 , thereby reducing the speed at which the chain link 31 moves downward, and providing a certain resistance when the ladder bar 34 moves downward, giving students a more realistic climbing experience. Since the weight of each student is different, if you simply rely on The elastic force provided by the first compression spring 62 connects the friction strip 63 to the chain link 31, and heavier students can move the chain link 31 faster. 5. The cooperation between the decelerating assembly 6 and the pressurizing assembly 7 can be realized. When the ring formed by the chain links 31 rotates, the chain links 31 will drive the rotating shaft 32 to move together, and part of the rotating shaft 32 is provided with a contact pressure head 321, when the contact pressure head 321 moves downward, it will contact the arc-shaped contact housing 55, thereby driving the arc-shaped contact housing 55 to move downward, and the downward movement of the arc-shaped contact housing 55 will drive the rotating bracket 54 to drive The long pull rod 51 moves downward together, and the part where the long pull rod 51 and the rotating bracket 54 are rotatably connected at this time is still in the linear movable space inside the embedded housing 42, so the long pull rod 51 and the rotating bracket 54 at this time cannot occur. Rotate to realize that the rotating shaft 32 drives the contact pressure head 321 so as to drive the arc-shaped contact housing 55 to move downward stably. When the long pull rod 51 moves, it will drive the horizontal bracket 52 to move downward together. The structural strength of the horizontal support 52, the downward movement of the horizontal support 52 will drive the non-elastic stay cord 73 to move downward, and the non-elastic stay cord 73 will drive the control part 71 to move downward to overcome the elastic force of the tension spring 72, and the control part 71 will move downward When moving down, the control piece 71 will drive the slanting block 74 to move downward. Since the lateral position of the slanting block 74 will not change when it moves up and down, and because the oblique protrusion 75 is inclined, the slanting block 74 will move downward. When moving, the oblique projection 75 will be forced to move, so that the oblique projection 75 will drive the friction strip 63 to move towards the chain link 31, so that the force exerted by the friction strip 63 on the chain link 31 will be greater and its friction force will be increased. In this process, the weight of a normal person is enough to make the rotating connecting part of the long pull rod 51 and the rotating bracket 54 enter the position of the fan-shaped groove 44, as long as the rotating connecting part of the long pulling rod 51 and the rotating bracket 54 enters the position of the fan-shaped groove 44 , the rotating bracket 54 can be rotated at any time. If the weight of the student is relatively light at this time, it can only drive the oblique clamping block 74 to move down to half the stroke. , as the students continue to climb upwards, during the climbing process, the pressure exerted by the students on the ladder bar 34 will change due to the interaction of inertia and gravity. At a certain moment during the boarding process, the pressure exerted by the student on the ladder bar 34 will be greater than the pressure exerted by the student's weight on the ladder bar 34. Since the pressure and gravity tend to be balanced, according to the above principle, the contact pressure head 321 will also cause an arc. The pressure exerted by the shape contact housing 55 decreases, and the second magnet 57 at this time will generate a magnetic attraction force to the first magnet 56, so that the first magnet 56 moves toward the direction of the second magnet 57, so that the rotating bracket 54 rotates and rotates. The rotation of the support 54 will drive the arc-shaped contact housing 55 to rotate and separate from the contact pressure head 321, so that the contact pressure head 321 can continue to move downward until the contact pressure head 321 moves out from the second strip groove 45, making it cross the inner Inlay body 42; when the weight of the student is too large, the oblique clamping block 74 may be moved downward to the maximum stroke. At this time, due to the heavy weight of the student itself, the contact pressure head 321 and the arc-shaped contact housing will be caused 55 is not easy to separate, even if at a certain moment at this time, the pressure exerted by the student on the ladder bar 34 is smaller than the pressure exerted by the student's weight on the ladder bar 34, it may be difficult to force the rotating bracket 54 to rotate by magnetic force. Block 74 moves downwards to the maximum stroke position, and the contact pressure head 321 at this time will also drive the arc-shaped contact housing 55 to move downwards to the maximum stroke position, and the bottom of the arc-shaped contact housing 55 is provided with the boss 58 It will be in contact with the rounded corner 59, and the shape of the rounded corner 59 will force the convex post 58 to move towards the second magnet 57, so that the convex post 58 drives the arc-shaped contact housing 55 to drive the rotating bracket 54 to rotate, making the arc-shaped contact The housing 55 is separated from the contact pressure head 321;

By arranging two groups of straight ladder limiting components 4, limiting parts 5, deceleration components 6 and pressurizing components 7 on both sides of the training simulation platform 1, and making two groups of straight ladder limiting components 4, limiting parts 5, deceleration The assembly 6 and the press assembly 7 are arranged alternately, so that when the contact pressure head 321 on one side is separated from the arc-shaped contact housing 55, the contact pressure head 321 on the other side can be separated from the arc-shaped contact housing 55 Fast contact, reduced interval time.

It should be noted that, during the upward climbing process of the students, the pressure exerted on the ladder bar 34 is almost never less than the pressure exerted by the body weight on the ladder bar 34, but after a complete climbing action is completed, the person will If the inertia continues to rise, the pressure applied to the ladder bar 34 may be less than the pressure exerted by the body weight on the ladder bar 34. If the climbing speed is too slow, it may not occur. At this time, the training teacher needs to tell the students, You can increase the climbing speed appropriately, or just shake up and down at the original position.

It can be seen from the above embodiments that the beneficial effect of the present invention is that, through the set training simulation platform, combining the training simulation platform with the head-mounted AR device can help students simulate the real wire tower climbing environment, and can automatically Adjust the running speed of the circulating ladder components according to the students' weight, climbing posture and other factors, so that students can experience the actual power maintenance work more safely and personally. While training the actual maintenance skills, students can understand more The actual maintenance environment can improve the psychological quality in the high-altitude environment and the ability to respond to emergencies, so as to provide more comprehensive training for students based on electric learning, improve the overall quality after taking up the job, ensure the personal safety of students, and improve the quality of maintenance.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A power maintenance training platform based on AR technology, characterized in that it includes a training simulation platform (1) and a head-mounted AR device, the training simulation platform (1) includes a training bracket assembly (2), and the training The support assembly (2) comprises a floor support (21), and two long runner supports (22) are oppositely arranged on the floor support (21), and a circulation ladder assembly ( 3), the circulating ladder assembly (3) includes two chains, a certain number of ladder bars (34) are arranged between the two chains, and large Sprocket (23), the two chains are respectively encircled and engaged with the large sprocket (23) on the corresponding side, and a speed regulating device is arranged between the two long runner brackets (22) and the chain ; An angular displacement sensor is provided between the large sprocket (23) and the long runner bracket (22), the head-mounted AR device is connected to the angular displacement sensor signal, and the head-mounted AR device can The high-altitude environment is displayed and dynamically changed according to the signal of the angular displacement sensor. 2. the electric power maintenance training platform based on AR technology according to claim 1, is characterized in that, described chain comprises a certain number of chain links (31), and one end of described chain links (31) is provided with protruding part, The other end of the chain link (31) is provided with a recessed part, and the protruding part of the chain link (31) is located in the recessed part of the adjacent chain link and is hinged by a rotating shaft (32). Multiple chain links (31 ) to form a ring, and the two ends of the ladder bar (34) are fixedly connected to the chain links (31) at the corresponding positions in the two chains, and the middle part of the chain link (31) is provided with the large chain wheel (23) The meshing holes (33) for the meshing of the gear teeth. 3. The electric power maintenance training platform based on AR technology according to claim 1, characterized in that, the speed regulating device includes a deceleration assembly (6), and the deceleration assembly (6) includes a deceleration housing (61), a second A compression spring (62) and a friction strip (63), the deceleration housing (61) is fixedly installed on the long runner bracket (22), the chain passes through the deceleration housing (61), and the The friction strip (63) is located on both sides of the chain, the first compression spring (62) is arranged between the friction strip (63) and the inner wall of the deceleration housing (61), and the first One end of the compression spring (62) is fixedly connected to the inner side wall of the deceleration housing (61), and the other end of the first compression spring (62) is connected to the side of the friction strip (63) facing away from the chain Fixedly connected, the first compression spring (62) presses the friction strip (63) against the side of the chain. 4. The electric power maintenance training platform based on AR technology according to claim 3, characterized in that, the speed regulating device also includes a straight ladder limit assembly (4), and the straight ladder limit assembly (4) includes a fixed The straight ladder half-enclosed shell (41) that is arranged on the described long runner support (22), the opening of two described straight ladder half-enclosed shells (41) is arranged oppositely, and the described straight ladder half-enclosed shell (41) is embedded An embedded housing (42) is fixed, and a first bar-shaped groove (43), a fan-shaped groove (44) and a second bar-shaped groove (45) are sequentially arranged in the embedded housing (42) from top to bottom , the center of the fan-shaped groove (44) is located at the lower end of the first bar-shaped groove (43), and the fan-shaped groove (44) is recessed towards the groove bottom direction of the ladder half surrounding the shell (41), and the embedded The casing (42) is installed with a stopper (5) that can slide up and down in the first bar-shaped groove (43), the fan-shaped groove (44) and the second bar-shaped groove (45), The limiter (5) includes a rotation limiter, and the side of the chain facing away from the ladder bar (34) is provided with a plurality of contact pressure heads (321), and the contact pressure heads (321) are evenly distributed along the chain. distribution, the contact pressure head (321) abuts against the rotation limiter, and when the rotation limiter is located in the fan-shaped groove (44), the rotation limiter is disengaged from the contact pressure head touch. 5. The electric power maintenance training platform based on AR technology according to claim 4, characterized in that, the limiter (5) also includes a long pull rod (51), and the rotation limiter is installed on the long pull rod The lower end of (51), the rotation limiter includes a rotation bracket (54) and an arc-shaped contact housing (55) installed on the lower part of the rotation bracket, the rotation bracket (54) and the long pull rod (51) ) is hinged at the lower end, the bottom surface of the arc-shaped contact housing (55) is an arc-shaped surface and is adapted to the arc-shaped surface of the fan-shaped groove (44), and the arc-shaped contact housing (55) is arranged on the The side of the rotating bracket (54) facing the chain, the contact pressure head abuts against the top surface of the arc-shaped contact housing (55). 6. The electric power maintenance training platform based on AR technology according to claim 5, characterized in that, the inner surface of the fan-shaped groove (44) is provided with a second magnet (57), and the rotating bracket (54) faces away from One side of the chain is provided with a first magnet (56), and the first magnet (56) and the second magnet (57) attract each other. 7. The electric power maintenance training platform based on AR technology according to claim 5, characterized in that, the bottom surface of the arc-shaped contact housing (55) is provided with a boss (58) near the side of the chain, so that The lower end of the boss (58) is a spherical surface, and the bottom surface of the fan-shaped groove (44) is provided with a rounded corner (59) on the side close to the chain. 8. The electric power maintenance training platform based on AR technology according to claim 5, characterized in that, the speed regulating device also includes a pressurizing assembly (7), and the pressurizing assembly (7) includes a The control member (71) inside the deceleration housing (61), the control member (71) is located between the friction strip (63) and the inner wall of the deceleration housing (61), the control member (71) A tension spring (72) is provided between the upper surface of the deceleration housing (61) and the top surface of the inner cavity, and the two ends of the tension spring (72) are respectively connected to the control member (71) and the The deceleration housing (61) is fixedly connected, and the side of the friction strip (63) facing the control member (71) is provided with an oblique protrusion (75), and between the two oblique protrusions (75) The spacing gradually increases from top to bottom, and the side of the control member (71) facing the friction strip (63) is provided with two oblique blocks (74), and the two oblique blocks (74) form an "eight" "" shape, the oblique block (74) is provided with a chute, and the two oblique protrusions (75) are respectively slidably arranged in the chute, and the control part (71) and the limit Bits (5) are connected. 9. The electric power maintenance training platform based on AR technology according to claim 8, characterized in that, the top end of the long pull rod (51) is fixedly connected with a horizontal bracket (52), and the bottom surface of the control part (71) is set There is no elastic stay cord (73), and the bottom end of the no elastic stay cord (73) is fixedly connected to the upper surface of the horizontal bracket (52), and the upper surface of the horizontal bracket (52) is also provided with a reinforcing bracket ( 53), the reinforcing bracket (53) is arranged in line with the long pull rod (51). 10. The electric power maintenance training platform based on AR technology according to claim 1, characterized in that, the speed regulating devices on the two long wheel supports (22) are vertically arranged alternately.

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