Busbar lifting amount detection device and working method thereof

Abstract

The invention relates to the technical field of rail transit, in particular to a busbar lifting amount detection device which is used for solving the problem of how to improve the busbar lifting amount detection precision. The device comprises a lever assembly, the lever assembly comprises a supporting component and a lever component pivoted to the supporting component, and the lever component comprises a first force arm and a second force arm; the force application assembly is connected with the supporting part and comprises a force application piece connected with the first force arm, and the force application piece is used for applying force towards the first force arm so that the second force arm can make contact with the busbar through set lifting force; the detection assembly is connected with the supporting part and comprises a deformation detection piece connected with the second force arm; wherein the lever assembly can move in the extension direction of the busbar.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a busbar lift detection device and its working method. Background Technology

[0002] In the field of rail transit technology, busbars are important components of electrical transmission systems, widely used in overhead contact lines, power supply systems, and power distribution systems. Based on their structure and function, busbars are classified into rigid busbars, flexible busbars, and rigid-flexible transition busbars. Taking the rigid-flexible transition busbar as an example, in order to achieve a smooth transition of the train's pantograph on the rigid-flexible transition busbar, there is a need to detect the lifting amount of the rigid-flexible transition busbar.

[0003] In related technologies, a telescopic mechanism located below the rigid-flexible transition busbar is often used to provide a set lifting force to the busbar, thereby simulating the contact between the pantograph and the busbar. A moving trolley moves along the extension direction of the busbar, and the amount of deformation of the busbar during the movement is detected to restore the lifting amount of the rigid-flexible transition busbar in actual use.

[0004] However, when the elastic component on the aforementioned telescopic mechanism provides cushioning in the vertical direction, the telescopic device undergoes a certain degree of expansion and contraction during the test lift, which in turn affects the accuracy of the test results. Summary of the Invention

[0005] In view of at least one of the above technical problems, the present invention provides a busbar lift detection device and its working method, which is used to solve the problem of how to improve the detection accuracy of busbar lift.

[0006] According to a first aspect of the present invention, a busbar lift detection device is provided, comprising a lever assembly, a force application assembly, and a detection assembly; the lever assembly includes a support member and a lever component pivotally connected to the support member, the lever component including a first lever arm and a second lever arm; the force application assembly is connected to the support member and includes a force application element connected to the first lever arm, the force application element being used to apply force toward the first lever arm such that the second lever arm contacts the busbar with a set lift force; the detection assembly is connected to the support member and includes a deformation detection element connected to the second lever arm; wherein the lever assembly is movable along the extension direction of the busbar.

[0007] In this way, by abutting the second lever arm on the lever component against the busbar, the lifting amount of the busbar during the movement of the lever assembly is converted into the deformation amount of the second lever arm during lifting or lowering. By detecting the deformation amount of the second lever arm, the lifting amount of the busbar can be determined, transforming linear extension and contraction into rotational deformation of the lever component. This reduces the impact of the extension and contraction of the telescopic mechanism on the accuracy of lifting amount detection and improves the accuracy of busbar lifting amount detection.

[0008] In some possible implementations, the lever component includes a first lever and a second lever arranged in parallel, with a first connector connected to the same end of the first lever and the second lever, and a second connector connected to the other end of the first lever and the second lever; the support component has a pivot shaft, and both the first lever and the second lever are connected to the pivot shaft.

[0009] This design results in a frame-like structure for the lever component. The connection between the lever component and the support component via the pivot shaft makes the rotation of the lever component smoother, thereby reducing rotational resistance and improving detection accuracy.

[0010] In some possible implementations, the portion of the lever component between the pivot shaft and the first connector forms the first lever arm with the first connector, and the force-applying component is connected to the first connector; the portion of the lever component between the pivot shaft and the second connector forms the second lever arm with the second connector, and the deformation detection component abuts against the second connector.

[0011] In this way, the force-applying component is connected to the first connector at one end of the lever component, and the deformation detection component is connected to the second connector at the other end of the lever component, which can obtain the maximum deformation data on the lever component and improve the reliability of the detection results.

[0012] In some possible implementations, the angle between the first lever arm and the second lever arm is an obtuse angle, and when the second connector contacts the rigid-flexible transition busbar, the height of the first connector is lower than that of the second connector. This ensures that when the second lever arm contacts the busbar, the first lever arm is essentially horizontal, thereby improving the precision of force application.

[0013] In some possible implementations, the force-applying component further includes a force sensor for detecting changes in the applied force on the first lever arm. Thus, by using the force sensor, force data on the second lever arm during the movement of the lever assembly can also be obtained, and the force data on the first lever arm can be obtained based on the length ratio of the first and second lever arms.

[0014] In some possible implementations, the force-applying component further includes a first connecting seat, one end of which is fixed to the support member, and the other end is suspended; the force sensor is at least partially connected to the suspended portion of the first connecting seat. The suspended arrangement of the first connecting seat allows the force sensor to detect changes in the force applied to the first connecting seat and thus determine the force on the first lever arm.

[0015] In some possible implementations, the detection assembly further includes a second connecting seat extending to the vertical projection of the second connector. The deformation detection element is fixed to the second connecting seat and abuts against the second connector. This allows the deformation detection element to detect the vertical movement of the second connector in a substantially vertical direction, thereby directly obtaining the rise of the busbar and improving the reliability and convenience of rise detection.

[0016] In some possible implementations, the busbar lift detection device further includes a drive assembly connected to the lever assembly for driving the lever assembly to move at a set speed along the extension direction of the busbar. By configuring the drive assembly, different test speeds can be set as needed, thereby obtaining force and deformation data at different speeds.

[0017] According to a second aspect of the present invention, a method for operating a busbar lift detection device is provided, comprising: Set a speed range, and select several movement speeds within the speed range; The lever assembly is driven to reciprocate at least once within the same length range at each of the aforementioned moving speeds; During the movement, the busbar lift is detected simultaneously, and a corresponding deformation-distance curve is output for each movement speed. A prediction model is established using the aforementioned deformation-distance curves. The prediction model can be used to output the deformation-distance curve corresponding to any speed within the speed range.

[0018] This reduces the number of repetitive measurements, improves detection efficiency, and provides continuous data support for the busbar lifting behavior under different operating conditions.

[0019] In some possible implementations, the prediction model is established by: Construct a two-branch neural network structure, including a direction-aware branch and a speed-adaptive temporal branch; The implicit features of the forward and reverse displacement sequences are independently extracted by the direction-aware branch as spatial features to capture the mechanical asymmetry in the forward and reverse directions. By inputting the moving speed parameter and corresponding timestamp through the speed adaptive timing branch, the scaling effect of speed on the dynamic characteristics of the curve is learned by the long short-term memory unit, and the time dynamic characteristics are output. By integrating the spatial and temporal dynamic features, the deformation-distance curve prediction results corresponding to any speed within a set speed range are generated through mapping by a fully connected layer.

[0020] In this way, a unified quantitative expression can be achieved for the differences in the shape of curves in the forward and reverse directions and the differences in velocity-related time at the same distance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the busbar lift detection device provided in the embodiments of this application; Figure 2 for Figure 1 A three-dimensional view of the busbar lift detection device shown; Figure 3 for Figure 2 A magnified view of region A in the busbar lift detection device shown; Figure 4 for Figure 3 A top view of the lever component shown; Figure 5 for Figure 4 The front view of the lever component is shown; Figure 6 for Figure 1 A magnified view of region B in the busbar lift detection device shown; Figure 7 A perspective view of another busbar lift detection device provided in an embodiment of this application.

[0023] Figure label: 01. Rigid-flexible transition busbar; 1. Lever assembly; 11. Support component; 12. Lever assembly; 12a. First lever arm; 12b. Second lever arm; 121. First lever; 122. Second lever; 123. First connector; 124. Second connector; 2. Force-applying component; 21. Force-applying element; 211. Force-applying part; 212. Adjustment knob; 213. Elastic element; 22. Force sensor; 23. First connecting seat; 3. Detection components; 31. Deformation detection parts; 32. Second connecting seat; 4. Drive assembly; 41. Track; 42. Parallelism base; 5. Support frame; 6. Rail. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] This application provides a busbar lift detection device, which can be applied to the lift detection of busbars in rail transit overhead contact lines. The busbar can be a rigid busbar, a flexible busbar, or a rigid-flexible transition busbar. The following embodiments are illustrated using a rigid-flexible transition busbar as an example.

[0028] Please see Figure 1 , Figure 1 This is a schematic diagram of the manifold lift detection device provided in an embodiment of this application. The device includes a lever assembly 1, a force application assembly 2, and a detection assembly 3. Please continue reading. Figure 1In the embodiments of this application, the lever assembly 1 includes a support member 11 and a lever member 12 pivotally connected to the support member 11. The lever member 12 includes a first lever arm 12a and a second lever arm 12b. The support member 11 provides rotational support for the lever member 12. It is understood that in the embodiments of this application, the support member 11 has various structural forms, including but not limited to plate-like, block-like, and columnar structures. The pivotal connection between the lever member 12 and the support member 11 also has various forms. For example, a rotating shaft can be fixed on the support member 11, and the lever member 12 can be rotatably connected to the rotating shaft; or a rotating shaft can be fixed on the lever member 12, and the rotating shaft can be rotatably connected to the support member 11, etc. In the embodiments of this application, the first lever arm 12a refers to the portion from the pivot point of the lever member 12 to one end of the lever member 12, and the second lever arm 12b refers to the portion from the pivot point to the other end of the lever member 12. Furthermore, in some embodiments of this application, the structural form of the lever member 12 includes, but is not limited to, a straight line, a broken line, a circle, or a ring, etc.

[0029] In embodiments of this application, the force-applying component 2 is connected to the support component 11 and includes a force-applying member 21 connected to the first lever arm 12a. The force-applying member 21 applies force toward the first lever arm 12a so that the second lever arm 12b contacts the busbar with a set lifting force. The function of the force-applying member 21 is to apply force toward the first lever arm 12a so that the second lever arm 12b contacts the rigid-flexible transition busbar 01 with a set lifting force. For example, in some embodiments of this application, a force of 120N is continuously applied toward the rigid-flexible transition busbar 01 by the force-applying member 21.

[0030] Please continue reading. Figure 1 In the embodiments of this application, the detection component 3 is connected to the support component 11, and the detection component 3 includes a deformation detection element 31 connected to the second lever arm 12b. The deformation detection element 31 is used to detect the deformation of the second lever arm 12b, that is, the lifting amount of the rigid-flexible transition busbar 01.

[0031] In embodiments of this application, the lever assembly 1 can move along the extension direction of the busbar. It is understood that the movement of the lever assembly 1 can be achieved by an external drive or by installing a drive mechanism on the lever assembly 1. For example, during testing, the second lever arm 12b of the lever component 12 is first moved towards the rigid-flexible transition busbar 01 by the force-applying component 21 and contacts it with a lifting force of 120N. Then, the lever assembly 1 is driven to move along the contact line with the rigid-flexible transition busbar 01, and the lifting amount is collected during the movement. By using different moving speeds, lifting data of the rigid-flexible transition busbar 01 at different speeds is obtained, such as deformation-time data, thereby performing data analysis to detect the performance data of the rigid-flexible transition busbar 01.

[0032] In the above embodiment, by abutting the second lever arm 12b on the lever component 12 against the busbar, the lifting amount of the busbar during the movement of the lever assembly 1 is converted into the lifting or lowering deformation amount of the second lever arm 12b. The lifting amount of the busbar is known by detecting the deformation amount of the second lever arm 12b, and the linear extension is converted into the rotational deformation of the lever component 12. This reduces the impact of the extension and retraction mechanism on the lifting amount detection accuracy and improves the detection accuracy of the busbar lifting amount.

[0033] Please see Figure 2 and Figure 3 , Figure 2 for Figure 1 The diagram shown is a three-dimensional representation of the busbar lift detection device. Figure 3 for Figure 2 The diagram shows a partial enlarged view of region A in the busbar lift detection device. In the embodiments of this application, the lever component 12 includes a first lever 121 and a second lever 122 arranged in parallel. A first connector 123 is connected to the same end of the first lever 121 and the second lever 122, and a second connector 124 is connected to the other end of the first lever 121 and the second lever 122. That is, in the embodiments of this application, the lever component 12 can be a frame-shaped structure, which makes the overall rotation more stable. Furthermore, the distance between the first lever 121 and the second lever 122 can be reasonably set, for example, it can be ten times the width of the bottom contact surface of the rigid-flexible transition busbar 01, thereby ensuring effective contact with the rigid-flexible transition busbar 01.

[0034] Please refer to the embodiments described in this application. Figure 3 The support component 11 has a pivot shaft, and both the first lever 121 and the second lever 122 are connected to the pivot shaft. It is understood that in some embodiments of this application, the connection between the first lever 121 and the second lever 122 and the pivot shaft can be a rotatable connection, in which case the pivot shaft can be fixedly connected to the support component 11; alternatively, the connection between the first lever 121 and the second lever 122 and the pivot shaft can be a fixed connection, in which case the pivot shaft is rotatably connected to the support component 11. This frame-like structure ensures effective contact between the second connecting member 124 and the rigid-flexible transition busbar 01, and also improves the stability and reliability of force transmission in the second connecting member 124. It should be noted that the lever component 12 can also be a disc-shaped or plate-shaped structure, and the connection between the lever component 12 and the support component 11 can also be achieved through bearings, etc.

[0035] Please see Figure 4 and Figure 5 , Figure 4 for Figure 3 The top view of lever component 12 shown. Figure 5 for Figure 4 The diagram shows a front view of the lever component 12. In embodiments of this application, the portion of the lever component 12 between the pivot shaft and the first connecting member 123 forms a first lever arm 12a with the first connecting member 123, and the force-applying member 21 is connected to the first connecting member 123. It is understood that the connection between the force-applying member 21 and the first connecting member 123 can be a rotatable connection, in which case the first connecting member 123 is fixedly connected to the ends of the first lever 121 and the second lever 122; alternatively, the connection between the force-applying member 21 and the first connecting member 123 can be a fixed connection, in which case the first connecting member 123 is rotatably connected to the first lever 121 and the second lever 122.

[0036] The portion of lever component 12 between the pivot shaft and the second connector 124 forms a second lever arm 12b with the second connector 124, and the deformation detection component 31 abuts against the second connector 124. (See also...) Figure 4 and Figure 5 The second lever arm 12b refers to the portion of the first lever 121 and the second lever 122 on the right side of the pivot shaft, as well as the second connecting member 124. It is understood that in the embodiments of this application, there are various ways for the deformation detection element and the second connecting member 124 to abut against each other. For example, the second connecting member 124 can be fixedly connected to the first lever 121 and the second lever 122, and the detection end of the deformation detection element can contact the second connecting member 124. The second connecting member 124 can be cylindrical. To increase the contact area, a concave structure can be formed on the contact surface between the second connecting member 124 and the deformation detection element. Alternatively, the contact surface of the detection element can be set as an arc-shaped structure that fits against the cylindrical surface to increase the contact area and thus improve the reliability of the detection. In some embodiments of this application, the deformation detection element includes, but is not limited to, a digital deformation measuring instrument, a strain gauge, an inclinometer, a displacement sensor, etc.

[0037] Please continue reading. Figure 1 and Figure 5In some embodiments of this application, the included angle between the first lever arm 12a and the second lever arm 12b is an obtuse angle. When the second connecting member 124 contacts the rigid-flexible transition busbar 01, the height of the first connecting member 123 is lower than that of the second connecting member 124. During testing, the rigid-flexible transition busbar 01 is generally positioned above the device. By setting the included angle between the first lever arm 12a and the second lever arm 12b to an obtuse angle, the second connecting member 124 is positioned above the first connecting member 123, which improves the convenience of testing. Specifically, by setting a reasonable angle and length, the lever member 12 can be shaped such that when the second connecting member 124 abuts against the rigid-flexible transition busbar 01, the first lever arm 12a and the first connecting member 123 are in a basically horizontal state. With this structural configuration, when the first lever arm 12a swings up and down, it can move in a basically vertical direction, thereby ensuring that the applied force and the force measurement are essentially in the same direction.

[0038] Please see Figure 6 , Figure 6 for Figure 1 The diagram shows a partial enlarged view of region B in the manifold lift detection device. The force application assembly 2 also includes a force sensor 22, which detects changes in the loading force of the first lever arm 12a. Because the lever assembly 1 is subjected to pressure from the rigid-flexible transition manifold 01 during its movement, changes in the loading force can be detected.

[0039] In some embodiments of this application, the force-applying component 2 further includes a first connecting seat 23, one end of which is fixed to the support component 11, and the other end is suspended. A force sensor 22 is at least partially connected to the suspended portion of the first connecting seat 23. Exemplarily, the force sensor 22 can be a piezoelectric force sensor 22 or a thin-film force sensor 22, etc., and can be embedded within the first connecting seat 23 or integrated with it as a single unit. By partially suspending the first connecting seat 23, the force from the first lever arm 12a can be transmitted to the suspended end of the first connecting seat 23 and then detected by the force sensor 22. By detecting the force, force-time, force-deformation, and force-velocity curves can be obtained, thereby enabling a more comprehensive analysis of the performance of the rigid-flexible transition busbar 01.

[0040] Please continue to refer to Figure 6In some embodiments of this application, the force-applying component 21 includes a force-applying member 211 that passes through the first connecting seat 23. One end of the force-applying member 211 is connected to the first connecting member 123, and an adjusting knob 212 is screwed onto the other end of the force-applying member 211. An elastic member 213 is also sleeved on the force-applying member 211, and the elastic member 213 is disposed between the first connecting seat 23 and the adjusting knob 212. Thus, by screwing the adjusting knob 212 onto the force-applying member 211, when the adjusting knob 212 rotates relative to the force-applying member 211, the elastic member 213 (e.g., a spring, a rubber component, etc.) is further compressed, thereby adjusting the loading force. Furthermore, by having the force-applying member 211 pass through the first connecting seat 23 and by using the elastic member 213, a certain degree of buffering can be achieved for the lever member 12, preventing damage to the component. Furthermore, by constructing the force-applying component 211 through the first connecting seat 23 and the elastic member 213 and positioned between the adjusting knob 212 and the first connecting seat 23, the magnitude of the force applied by the force-applying component 211 can be directly detected by the force sensor 22 on the first connecting seat 23. Through connection with an external display, visual adjustment of the applied force can be performed. It is understood that in the embodiments of this application, the force-applying component 211 can be positioned below the first connecting member 123 to apply tension, or connected above the first connecting member 123 to apply pressure. The structural form of the force-applying component 211 can be a cylinder, a polygonal prism, etc. It should be noted that in the embodiments of this application, the force-applying component 21 can also be an electric push rod, a hydraulic / pneumatic system, etc.

[0041] Please refer to the embodiments in this application. Figure 5 and Figure 1 The length of the second lever arm 12b is greater than the length of the first lever arm 12a. This arrangement reduces measurement errors caused by the buffer. Because the length of the second lever arm 12b is greater than the length of the first lever arm 12a, when the second connecting member 124 swings significantly in the vertical direction, the vertical swing amplitude of the corresponding first connecting member 123 is relatively smaller. This reduces the displacement of the force-applying component 211 connected to the first connecting member 123, thereby improving the reliability of the force-applying component 21.

[0042] Please continue reading. Figure 2 and Figure 3In the embodiments of this application, to reliably fix the deformation detection element 31, the detection assembly 3 further includes a second connecting seat 32. The second connecting seat 32 extends to the vertical projection of the second connecting member 124. The deformation detection element 31 is fixed to the second connecting seat 32, and the deformation detection element 31 abuts against the second connecting member 124. The function of the second connecting seat 32 is to fix the deformation detection element 31 and to position the deformation detection element 31 on the vertical projection of the second connecting member 124, so that the vertical swing of the second connecting member 124 is directly transmitted to the deformation detection element 31 without change. The second connecting seat 32 can be configured as follows: Figure 3 The L-shaped structure shown has one end fixedly connected to the support component 11 and the other end fixed to the deformation detection component 31. It is understood that the structure of the second connecting seat 32 is not limited to the L-shaped structure described above; other structural forms such as plate-shaped or block-shaped structures can also be used, which will not be elaborated upon here.

[0043] Please see Figure 7 , Figure 7 This is a perspective view of another busbar lift detection device provided in an embodiment of this application. In this embodiment, the busbar lift detection device further includes a drive assembly 4, which is connected to a lever assembly 1 and is used to drive the lever assembly 1 to move at a set speed along the extension direction of the busbar. By driving the lever assembly 12 to move along the extension direction of the rigid-flexible transition busbar 01 at a set speed using the drive assembly 4, a deformation-velocity curve can be obtained. It should be noted that the drive assembly 4 can have various structural forms, including... Figure 7 The walking speed motor shown is in the form of a rack and pinion motor. For example, the support member 11 can be slidably mounted on the track 41 parallel to the rigid-flexible transition busbar 01. A gear is connected to the motor, and the movement of the lever member 12 is achieved through the meshing of the gear with a rack parallel to the rigid-flexible transition busbar 01. It is understood that, in the embodiments of this application, in addition to the rack and pinion structure described above, ball screw structures, linear motors, sprocket chains, synchronous pulleys, synchronous belts, and other structural forms can also be used to achieve this.

[0044] In addition, please continue to refer to Figure 7To ensure smooth movement, a support 5 can be installed to fix the track 41, and a parallelism base 42 can be installed on the support 5 to support the track 41. To further increase the range of movement, a steel rail 6 can be installed at the bottom of the support 5, allowing the support 5 to move relative to the steel rail 6, thereby enabling the detection of the lifting amount of longer or multiple rigid-flexible transition busbars 01. It should be noted that in the embodiments of this application, only the lifting amount detection of rigid-flexible transition busbars 01 is described by way of example. This busbar lifting amount detection device can also be used to detect the lifting amount of other types of busbars.

[0045] This application also provides a method for operating a busbar lift detection device, including: Set a speed range, and select several movement speeds within that range; The drive lever assembly moves back and forth at least once within the same length range at each moving speed; During the movement, the busbar lift is detected simultaneously, and a corresponding deformation-distance curve is output for each movement speed. A prediction model is established by various deformation-distance curves. The prediction model can be used to output the deformation-distance curve corresponding to any speed within the speed range.

[0046] The working method described in the above embodiments can reduce the number of repetitive measurements, improve detection efficiency, and provide continuous data support for the busbar lifting behavior under different operating conditions.

[0047] In the embodiments of this application, the factors influencing the setting of the speed range include, but are not limited to: covering the common operating speed range of the busbar in the production line or equipment, combining material properties and structural strength to avoid exceeding the critical speed of deformation, setting the boundary according to the extreme working conditions to be verified, based on the maximum controllable moving speed and stability range of the drive components, while ensuring that the speed sampling points are reasonably distributed to meet the accuracy requirements of the prediction model.

[0048] In the embodiments of this application, the selection of the number of moving speeds needs to meet the subsequent modeling requirements. For example, the speed can be selected near the endpoints of a set speed range, or relatively evenly between the two endpoints. The reciprocating movement at each moving speed can be performed once or multiple times. When performed multiple times, the average value of the curves from each movement can be taken.

[0049] In some embodiments of this application, a prediction model is established, including: Construct a two-branch neural network structure, including a direction-aware branch and a speed-adaptive temporal branch; The implicit features of forward and reverse displacement sequences are extracted independently by the direction-aware branch as spatial features to capture the mechanical asymmetry in the forward and reverse directions. By inputting the moving speed parameter and corresponding timestamp through the speed adaptive timing branch, the scaling effect of speed on the dynamic characteristics of the curve is learned by the long short-term memory unit, and the time dynamic characteristics are output. By integrating spatial and temporal dynamic features, the deformation-distance curve prediction results corresponding to any speed within a set speed range are generated through mapping by a fully connected layer.

[0050] The deformation-distance curve exhibits a unique characteristic: differences in curve shape exist in both directions, and curves of the same length show corresponding time differences. It should be noted that a unidirectional movement direction can be artificially designated as positive, and the return direction will naturally be negative; swapping these two directions will not affect the technical effect of this application. Based on these characteristics, in the above implementation, the prediction model independently processes the displacement sequences in both directions through a direction-aware branch, accurately capturing the mechanical asymmetry characteristics caused by friction and inertia. This method avoids feature distortion caused by bidirectional data mixing. Simultaneously, the velocity adaptive temporal branch dynamically correlates velocity parameters with timestamps, utilizing long short-term memory units to quantify the scaling effect of velocity on the dynamic characteristics of the curve, thus resolving the modeling impact of time differences corresponding to different speeds at the same distance.

[0051] For example, spatial characteristics include the lateral offset of the deformation-displacement curve during forward and reverse movement, the displacement difference between the points of maximum deformation in the forward and reverse strokes, etc., wherein the lateral offset of the deformation-displacement curve during forward and reverse movement reflects the hysteresis effect caused by static friction, and the displacement difference between the points of maximum deformation in the forward and reverse strokes reflects the difference in bidirectional inertia. For example, temporal dynamic characteristics include the steepness of the rising and falling edges of the curve, the time span from the start of movement to the force value entering the stable fluctuation zone, etc., wherein the steepness of the rising and falling edges of the curve is related to the excitation intensity of the velocity on the transient response, and the time span from the start of movement to the force value entering the stable fluctuation zone quantifies the dynamic equilibrium establishment time.

[0052] In some embodiments of this application, the direction-aware branch uses independent long short-term memory networks to process the forward and reverse displacement sequences separately, and the implementation includes: The input displacement sequence is filtered and denoised in the time domain, and the correlation between displacement and deformation inflection points is captured through a gating mechanism; Calculate the forward and reverse deformation deviation at the same displacement point as the hysteresis loop width, and locate the displacement difference at the point of maximum deformation to quantify the inertia difference; The correlation between displacement and deformation inflection points, the deviation of deformation in the same displacement point in the opposite direction, and the displacement difference of the point with the largest deformation are concatenated and compressed through a fully connected layer to generate a spatial feature vector containing mechanical asymmetry information.

[0053] In some embodiments of this application, the speed-adaptive timing branch inputs the moving speed parameter and the corresponding timestamp, utilizes the long short-term memory unit to learn the scaling effect of speed on the dynamic characteristics of the curve, and outputs the temporal dynamic features. The implementation process includes: Input the moving speed parameters and corresponding timestamps, divide the speed value by the preset range to normalize it to eliminate the influence of dimensions, and convert the timestamps into relative time series to establish a unified time reference, thus obtaining a preprocessed time series signal; By using the forget gate of the long short-term memory unit to filter out speed change noise, and by associating the speed step with the rate of change of the curve slope through the input gate, the scaling effect of the curve dynamic characteristics under different speeds is learned. Based on the preprocessed time-series signal, the output layer parses the waveform envelope and performs the following: The oscillation attenuation coefficient is calculated by the attenuation rate of adjacent peaks. A dynamic mapping is established by associating the velocity step with the curve slope change rate through the input gate, providing a basis for calculating the attenuation rate of adjacent peaks. The slope change caused by the velocity mutation directly affects the oscillation response intensity and attenuation characteristics. The time point at which the deformation enters the predetermined stable fluctuation range is located is determined to determine the steady-state delay duration. The oscillation attenuation coefficient and steady-state delay duration are compressed through a fully connected layer to generate a time dynamic feature vector, quantifying the impact of velocity on the curve's time-scale characteristics.

[0054] In some embodiments of this application, the fusion process of spatial features and temporal dynamic features is specifically manifested as follows: the spatial features and temporal dynamic features extracted by the dual branches are nonlinearly weighted and fused through a fully connected layer; the fusion layer jointly models spatial characteristics such as mechanical hysteresis effect and inertial difference with dynamic characteristics such as velocity-dependent transient response and steady-state establishment time, and finally outputs the prediction result of continuous deformation amount-distance curve corresponding to any speed within the set speed range, so as to realize the unified quantitative expression of the difference in curve shape in the positive and negative directions and the difference in velocity-related time at the same distance.

[0055] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A busbar lift amount detection device characterized by comprising: The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device.

9. The method of operating a busbar lift detection apparatus as defined in claim 1, wherein, The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. The application relates to a busbar lifting amount detection device. 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The application relates to a busbar lifting The bus bar lifting amount detection is synchronously performed during the movement, and a corresponding deformation-distance curve is output for each movement speed; A prediction model is established through the deformation-distance curves, and the prediction model can be used to output a deformation-distance curve corresponding to any speed in the speed range.

10. The busbar lift detection apparatus operation method according to claim 9, wherein The prediction model is established, including: A double-branch neural network structure is constructed, including a direction perception branch and a speed adaptive time sequence branch; The hidden features of the forward movement displacement sequence and the reverse movement displacement sequence are independently extracted through the direction perception branch as spatial features, so as to capture the mechanical asymmetry in the forward and reverse directions; The movement speed parameter and the corresponding time stamp are input through the speed adaptive time sequence branch, the long short-term memory unit is used to learn the scaling effect of the speed on the curve dynamic characteristics, and the time dynamic characteristics are output; The spatial features and the time dynamic characteristics are fused, and the full connection layer is mapped to generate a prediction result of a deformation-distance curve corresponding to any speed in a set speed range.

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