CN113155421B - Method, system, terminal and storage medium for detecting mechanical characteristics of high-voltage circuit breaker - Google Patents
Method, system, terminal and storage medium for detecting mechanical characteristics of high-voltage circuit breaker Download PDFInfo
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- CN113155421B CN113155421B CN202110287011.2A CN202110287011A CN113155421B CN 113155421 B CN113155421 B CN 113155421B CN 202110287011 A CN202110287011 A CN 202110287011A CN 113155421 B CN113155421 B CN 113155421B
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Abstract
The invention provides a method, a system, a terminal and a storage medium for detecting mechanical characteristics of a high-voltage circuit breaker, wherein the method comprises the following steps: setting a transmission angle range and generating a transmission diagram according to the transmission angle range and a crank arm transmission structure of the high-voltage circuit breaker; selecting a plurality of characteristic points in the angle motion boundary of the transmission diagram, and acquiring the angle and the stroke value of each characteristic point from the transmission diagram; inputting the angle and the travel value of each characteristic point into a fitting tool to obtain a fitting curve, and synchronously generating a relation polynomial of the angle and the travel value; and inputting the actual angle acquired by the rotary sensor into the relational polynomial, and calculating an actual travel value. The invention can ensure that the conversion errors of all angles and corresponding linear stroke values in the boundary of the preset rotation angle range are very small, and the calculation error is point-to-point error, so that the accumulated error can not occur, the stroke error and the speed error of the total calculation are also very small, and the linear motion stroke characteristic of the moving contact of the circuit breaker can be accurately reflected.
Description
Technical Field
The invention relates to the technical field of high-voltage circuit breakers, in particular to a method, a system, a terminal and a storage medium for detecting mechanical characteristics of a high-voltage circuit breaker.
Background
In the detection of mechanical characteristics of the high-voltage circuit breaker, linear sensors, rotation sensors, acceleration sensors and the like are commonly used. The detection requirement reflects the motion speed of the moving contact of the breaker, and the detection quantity of the linear sensor is the linear stroke quantity which is closest to the motion track of the moving contact of the breaker, so that the detection of the linear sensor is the most accurate. The detection amount of the rotation sensor corresponds to a rotation angle amount, a large error exists between the rotation angle amount and the linear stroke amount, and the larger the rotation angle is, the larger the error is. When the acceleration sensor is used for detection, the acceleration value is measured, and at present, large errors exist in detection precision and calculation, actual movement details of the circuit breaker are difficult to reflect really, so that power consumers and type test stations are not well approved to the acceleration sensor.
The transmission of high-voltage circuit breaker mostly drives the crank arm rotation transmission for the pull rod, and linear sensor installs additional generally comparatively difficult, and rotation sensor installs additional very conveniently in the high-voltage circuit breaker transmission, so rotation sensor uses very generally in high-voltage circuit breaker mechanical properties detects. However, in the current mechanical characteristic detection program of a mechanical characteristic instrument manufacturer, the conversion after the rotation amount detection mostly adopts rough coefficient conversion, and the real movement stroke characteristic of the moving contact of the circuit breaker is difficult to truly reflect. Although some manufacturers make special conversion aiming at certain models of products, the applicability is poor, so that the detection error is large when the models of the products are different, the detection positions are different or the transmission rotating angles are different.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a method, a system, a terminal and a storage medium for detecting mechanical characteristics of a high voltage circuit breaker, so as to solve the above-mentioned technical problems.
In a first aspect, the present invention provides a method for detecting mechanical characteristics of a high voltage circuit breaker, including:
setting a transmission angle range and generating a transmission diagram according to the transmission angle range and a crank arm transmission structure of the high-voltage circuit breaker;
selecting a plurality of characteristic points in an angle motion boundary of a transmission diagram, and acquiring an angle and a travel value of each characteristic point from the transmission diagram;
inputting the angle and the travel value of each characteristic point into a fitting tool to obtain a fitting curve, and synchronously generating a relation polynomial of the angle and the travel value;
and inputting the actual angle acquired by the rotary sensor into the relation polynomial, and calculating an actual travel value.
Further, set for transmission angle scope and according to transmission angle scope and high voltage circuit breaker connecting lever transmission structure generation transmission diagram, include:
setting the transmission angle range to include the maximum angle range of the rotary transmission of the high-voltage circuit breaker in the industry;
determining an angle motion boundary of a crank arm transmission tail end and a relative position of a crank arm power end motion track and the angle motion boundary according to a transmission principle of a crank arm transmission structure, wherein the angle motion boundary comprises an initial boundary radius, an ending boundary radius and an arc edge;
and forming a power end linear track corresponding to the angular motion boundary according to the relative position, wherein the power end linear track comprises a starting point and an end point, and points in the angular motion boundary and points on the power end linear track have a one-to-one correspondence relationship.
Further, the selecting a plurality of feature points within the angle motion boundary of the driving diagram, and obtaining the angle and the stroke value of each feature point from the driving diagram include:
setting the radial included angles between adjacent characteristic points in the angle motion boundary to be the same;
calibrating track points corresponding to the characteristic points on the linear track of the power end according to the one-to-one correspondence;
taking a radial included angle between the characteristic point and the initial boundary radius as an angle of the characteristic point;
and taking the distance between the track point corresponding to the feature point and the starting point as the travel value of the feature point.
Further, the inputting the angle and the stroke value of each feature point into a fitting tool to obtain a fitting curve and synchronously generating a relation polynomial of the angle and the stroke value includes:
importing the angles and the travel values of the plurality of feature points into an EXCEL table from small to large according to the angles;
and generating a corresponding relation polynomial of a fitting curve by using a fitting function of the EXCEL table.
Further, the method further comprises:
selecting a group of check points from the fitting curve, and acquiring the angle and the travel value of each check point;
generating a check relation polynomial according to the angle and the travel value of each check point;
and generating an error coefficient according to the relation polynomial and the check relation polynomial.
In a second aspect, the present invention provides a mechanical characteristic detection system for a high voltage circuit breaker, comprising:
the transmission composition unit is configured for setting a transmission angle range and generating a transmission pattern according to the transmission angle range and a crank arm transmission structure of the high-voltage circuit breaker;
the characteristic selection unit is configured for selecting a plurality of characteristic points in the angle motion boundary of the transmission diagram and acquiring the angle and the stroke value of each characteristic point from the transmission diagram;
the characteristic fitting unit is configured for inputting the angle and the travel value of each characteristic point into a fitting tool to obtain a fitting curve and synchronously generating a relation polynomial of the angle and the travel value;
and the stroke calculation unit is configured to input the actual angle acquired by the rotary sensor into the relation polynomial and calculate an actual stroke value.
Further, the transmissive patterning unit includes:
the range setting module is configured for setting the transmission angle range to include the maximum angle range of the rotary transmission of the high-voltage circuit breaker in the industry;
the angle construction module is configured for determining an angle motion boundary of a crank arm transmission tail end and a relative position of a crank arm power end motion track and the angle motion boundary according to a transmission principle of a crank arm transmission structure, wherein the angle motion boundary comprises an initial boundary radius, an ending boundary radius and an arc-shaped edge;
and the stroke construction module is configured to form a power end linear track corresponding to the angular motion boundary according to the relative position, the power end linear track comprises a starting point and an end point, and points in the angular motion boundary and points on the power end linear track have a one-to-one correspondence relationship.
Further, the feature selecting unit includes:
the angle setting module is configured for setting the radial included angles between adjacent characteristic points in the angle motion boundary to be the same;
the track corresponding module is configured for calibrating track points corresponding to the characteristic points on the linear track of the power end according to the one-to-one correspondence relationship;
the angle calculation module is configured to use a radial included angle between the characteristic point and the initial boundary radius as an angle of the characteristic point;
and the stroke calculation module is configured to use the distance between the track point corresponding to the feature point and the starting point as the stroke value of the feature point.
In a third aspect, a terminal is provided, including:
a processor, a memory, wherein,
the memory is used for storing a computer program which,
the processor is configured to call and run the computer program from the memory, so that the terminal performs the method of the terminal described above.
In a fourth aspect, a computer storage medium is provided, having stored therein instructions that, when executed on a computer, cause the computer to perform the method of the above aspects.
The beneficial effect of the invention is that,
according to the mechanical characteristic detection method, the mechanical characteristic detection system, the mechanical characteristic detection terminal and the mechanical characteristic detection storage medium of the high-voltage circuit breaker, the characteristic values of rotation and linear motion are obtained by using a drawing method, then a fitting curve is drawn, a relation polynomial of a high-fitting degree angle and linear stroke conversion is deduced, the relation between the angle and the linear stroke can be highly fitted by using the relation polynomial, and then the corresponding stroke value can be calculated according to the angle value detected by a rotation sensor. The invention can ensure that the conversion errors of all angles and corresponding linear stroke values in the boundary of the preset rotation angle range are very small, and the calculation error is point-to-point error without accumulated error, so that the total calculated stroke error and speed error are very small, and the linear motion stroke characteristics of the movable contact of the circuit breaker can be accurately reflected.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or prior art solutions of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a method of one embodiment of the present invention.
FIG. 2 is a schematic drive-through diagram of a method of one embodiment of the present invention.
Fig. 3 is a schematic diagram of exemplary feature point selection for a method of one embodiment of the invention.
FIG. 4 is a schematic fit curve effect graph of a method of one embodiment of the invention.
FIG. 5 is a schematic flow chart diagram of the trip value calculation of the method of one embodiment of the present invention.
FIG. 6 is a schematic block diagram of a system of one embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
FIG. 1 is a schematic flow diagram of a method of one embodiment of the invention. Wherein, the executive main body of fig. 1 can be a mechanical characteristic detection system of a high-voltage circuit breaker.
As shown in fig. 1, the method includes:
and 140, inputting the actual angle acquired by the rotary sensor into the relation polynomial, and calculating an actual travel value.
In order to facilitate understanding of the present invention, the principle of the method for detecting mechanical characteristics of a high voltage circuit breaker according to the present invention is described in detail below with reference to the embodiments.
Specifically, the method for detecting the mechanical characteristics of the high-voltage circuit breaker comprises the following steps:
and S1, setting a transmission angle range and generating a transmission diagram according to the transmission angle range and the crank arm transmission structure of the high-voltage circuit breaker.
The direction perpendicular to the linear motion is taken as a central line, the two sides of the linear motion are symmetrically expanded respectively, the applicable transmission angle range is determined, and the range can be properly larger. As shown in fig. 2, the lower angular limit of the angular movement boundary is 1, the upper angular limit is 2, the initial angle is ac, the total range angle is af, the total travel is Lz, and the total range is such as to cover the maximum possible transmission angular range of the rotation transmission of the high-voltage circuit breaker in the industry, for example, 120 degrees (± 60 degrees), but is not limited to this degree.
And determining the angle motion boundary of the crank arm transmission tail end and the relative position of the motion trail of the crank arm power end and the angle motion boundary according to the transmission principle of the crank arm transmission structure. Wherein the angular motion boundary comprises an initial boundary radius, an ending boundary radius, and an arc-shaped edge. And forming a power end linear track (a straight line 4 in fig. 2 is a power end linear track) corresponding to the angular motion boundary according to the relative position, wherein the power end linear track comprises a starting point and an end point, points in the angular motion boundary and points on the power end linear track have a one-to-one correspondence relationship, the correspondence relationship is that the length of a connecting line between the corresponding points is a fixed value, and the connecting line is a straight line 3 in fig. 2, for example.
S2, selecting a plurality of characteristic points in the angle motion boundary of the transmission diagram, and obtaining the angle and the stroke value of each characteristic point from the transmission diagram.
Referring to fig. 3, a plurality of feature points are drawn on the arc-shaped edge of the angular motion boundary, the radial included angles between adjacent feature points in the angular motion boundary are set to be the same, and the corresponding track points of the feature points on the linear track of the power end are found out according to the one-to-one corresponding connecting lines.
And taking a radial included angle between the characteristic point and the initial boundary radius as an angle of the characteristic point, and taking the distance between a track point corresponding to the characteristic point and the starting point as a stroke value of the characteristic point. For example, each transmission angle point a1, a2, A3 and a4 … … corresponds to one stroke position point B1, B2, B3 and B4 … … during transmission, namely the rotation angle a1, a2, A3 and a4 … … of each point corresponds to the stroke L1, L2, L3 and L4 … … of the corresponding point one by one.
And S3, inputting the angle and the travel value of each feature point into a fitting tool to obtain a fitting curve, and synchronously generating a relation polynomial of the angle and the travel value.
And (4) introducing the angles and the stroke values of the characteristic points in the step (S2) into an EXCEL table as coordinate values of the characteristic points in the order of the angles from small to large, and generating corresponding relational polynomials of the fitting curve by using the fitting function of the EXCEL table. The fitting curve is shown in fig. 4, where Z1 is an initial coordinate point, Z2 represents each intermediate coordinate point, Z3 is a corresponding coordinate point at the end of closing, the abscissa is an angle value, and the ordinate is a stroke value.
And selecting a group of check points from the fitted curve, wherein for example, a radial included angle between adjacent check points is 1 degree, then collecting coordinate values of all the check points from the fitted curve, and generating a check relation polynomial of the stroke value and the angle according to the coordinate values of all the check points. And (4) subtracting the relation polynomial in the step (S2) from the check relation polynomial to obtain an error coefficient.
And S4, inputting the actual angle acquired by the rotation sensor into the relation polynomial, and calculating the actual travel value.
Referring to fig. 5, parameters and a calculation logic relationship (Lz value from zero movement of stroke to closing end at closing time, and zero position from maximum Lz to opening position at opening time) are defined. Allowing the user to set the input: the initial angle, the total rotation angle and the moving contact stroke can be stored as the type code of a certain circuit breaker product by combining other settings (such as speed definition) after being input, so that the circuit breaker can be directly called and used subsequently, and the trouble of inputting every time is reduced. If the saved product model module can not be found in the system, the user can manually input the product model module each time. And generating a corresponding relation polynomial according to the parameters input by the user (or calling the corresponding relation polynomial from the original database).
Converting the analog quantity angle value acquired by the rotary sensor into a digital quantity angle value, and then inputting the digital quantity angle value into a relation polynomial serving as a conversion formula to obtain an initial stroke value. And outputting the product of the initial stroke value and the error coefficient as an actual stroke value.
And setting an actual travel value acquisition cycle, and acquiring an actual travel value regularly. If the actual travel value is collected every 1s, the average speed (delta s/delta t) of a certain stage can be calculated according to the actual travel value collected regularly. And displaying the calculated s-t curve and the speed curve on a display window, importing the s-t curve and the speed curve into a data table, and viewing the s-t curve and the speed curve from the data table.
As shown in fig. 6, the system 600 includes:
the transmission composition unit 610 is configured for setting a transmission angle range and generating a transmission diagram according to the transmission angle range and a crank arm transmission structure of the high-voltage circuit breaker;
the characteristic selection unit 620 is configured to select a plurality of characteristic points within an angle motion boundary of a transmission diagram, and acquire an angle and a stroke value of each characteristic point from the transmission diagram;
the characteristic fitting unit 630 is configured to input the angle and the travel value of each characteristic point into a fitting tool to obtain a fitting curve, and synchronously generate a relation polynomial of the angle and the travel value;
and the stroke calculation unit 640 is configured to input the actual angle acquired by the rotation sensor into the relation polynomial, and calculate an actual stroke value.
Optionally, as an embodiment of the present invention, the transmission patterning unit includes:
the range setting module is configured for setting the transmission angle range to include the maximum angle range of the rotary transmission of the high-voltage circuit breaker in the industry;
the angle construction module is configured for determining an angle motion boundary of a crank arm transmission tail end and a relative position of a crank arm power end motion track and the angle motion boundary according to a transmission principle of a crank arm transmission structure, wherein the angle motion boundary comprises an initial boundary radius, an ending boundary radius and an arc-shaped edge;
and the stroke construction module is configured to form a power end linear track corresponding to the angular motion boundary according to the relative position, the power end linear track comprises a starting point and an end point, and points in the angular motion boundary and points on the power end linear track have a one-to-one correspondence relationship.
Optionally, as an embodiment of the present invention, the feature selecting unit includes:
the angle setting module is configured and used for setting the same radial included angle between adjacent characteristic points in the angle motion boundary;
the track corresponding module is configured for calibrating track points corresponding to the characteristic points on the linear track of the power end according to the one-to-one correspondence relationship;
the angle calculation module is configured to use a radial included angle between the characteristic point and the initial boundary radius as an angle of the characteristic point;
and the stroke calculation module is configured to use the distance between the track point corresponding to the feature point and the starting point as a stroke value of the feature point.
Fig. 7 is a schematic structural diagram of a terminal 700 according to an embodiment of the present invention, where the terminal 700 may be used to execute a method for detecting a mechanical characteristic of a high-voltage circuit breaker according to the embodiment of the present invention.
Among them, the terminal 700 may include: a processor 710, a memory 720, and a communication unit 730. The components communicate via one or more buses, and those skilled in the art will appreciate that the architecture of the servers shown in the figures is not intended to be limiting, and may be a bus architecture, a star architecture, a combination of more or less components than those shown, or a different arrangement of components.
The memory 720 may be used for storing instructions executed by the processor 710, and the memory 720 may be implemented by any type of volatile or non-volatile storage terminal or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The executable instructions in memory 720, when executed by processor 710, enable terminal 700 to perform some or all of the steps in the method embodiments described below.
The processor 710 is a control center of the storage terminal, connects various parts of the entire electronic terminal using various interfaces and lines, and performs various functions of the electronic terminal and/or processes data by operating or executing software programs and/or modules stored in the memory 720 and calling data stored in the memory. The processor may be formed by an Integrated Circuit (IC), for example, a single packaged IC, or a plurality of packaged ICs with the same or different functions. For example, processor 710 may include only a Central Processing Unit (CPU). In the embodiment of the present invention, the CPU may be a single operation core, or may include multiple operation cores.
A communication unit 730, configured to establish a communication channel so that the storage terminal can communicate with other terminals. And receiving user data sent by other terminals or sending the user data to other terminals.
The present invention also provides a computer storage medium, wherein the computer storage medium may store a program, and the program may include some or all of the steps in the embodiments provided by the present invention when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a Random Access Memory (RAM).
Therefore, the invention obtains the characteristic values of the rotation and the linear motion by using a drawing method, then draws a fitting curve, deduces a relational polynomial of high fitting degree angle and linear stroke conversion, can highly fit the relation between the angle and the linear stroke by using the relational polynomial, and further can calculate the corresponding stroke value according to the angle value detected by the rotation sensor. The invention can ensure that the conversion errors of all angles and corresponding linear stroke values within the boundary of the preset rotation angle range are very small, and the calculation errors are point-to-point errors and cannot be accumulated, so that the total calculated stroke errors and speed errors are very small, the linear motion stroke characteristics of the movable contact of the circuit breaker can be accurately reflected, the technical effects which can be achieved by the embodiment can be referred to the description above, and the description is omitted here.
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be embodied in the form of a software product, where the computer software product is stored in a storage medium, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like, and the storage medium can store program codes, and includes instructions for enabling a computer terminal (which may be a personal computer, a server, or a second terminal, a network terminal, and the like) to perform all or part of the steps of the method in the embodiments of the present invention.
The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for relevant points, reference may be made to the description in the method embodiment.
In the embodiments provided in the present invention, it should be understood that the disclosed system and method can be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be through some interfaces, indirect coupling or communication connection of systems or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for detecting mechanical characteristics of a high-voltage circuit breaker, comprising:
setting a transmission angle range and generating a transmission diagram according to the transmission angle range and a crank arm transmission structure of the high-voltage circuit breaker; the method specifically comprises the following steps: determining an angle motion boundary of a crank arm transmission tail end and a relative position of a crank arm power end motion track and the angle motion boundary according to a transmission principle of a crank arm transmission structure, wherein the angle motion boundary comprises an initial boundary radius, an ending boundary radius and an arc-shaped edge; forming a power end linear track corresponding to the angular motion boundary according to the relative position, wherein the power end linear track comprises a starting point and an end point, and points in the angular motion boundary and points on the power end linear track have a one-to-one correspondence relationship;
selecting a plurality of characteristic points in an angle motion boundary of a transmission diagram, and acquiring an angle and a travel value of each characteristic point from the transmission diagram; the method specifically comprises the following steps: calibrating track points corresponding to the characteristic points on the linear track of the power end according to the one-to-one correspondence; taking a radial included angle between the characteristic point and the initial boundary radius as an angle of the characteristic point; taking the distance between the track point corresponding to the feature point and the starting point as the travel value of the feature point;
inputting the angle and the travel value of each characteristic point into a fitting tool to obtain a fitting curve, and synchronously generating a relation polynomial of the angle and the travel value;
and inputting the actual angle acquired by the rotary sensor into the relation polynomial, and calculating an actual travel value.
2. The method of claim 1, wherein the setting a transmission angle range and generating a transmission map based on the transmission angle range and a high voltage circuit breaker crank arm transmission configuration comprises:
and setting the transmission angle range to include the maximum angle range of the rotary transmission of the high-voltage circuit breaker in the industry.
3. The method of claim 2, wherein selecting a plurality of feature points within an angular motion boundary of a transmission map and obtaining an angle and a stroke value for each feature point from the transmission map comprises:
and setting the radial included angles between the adjacent characteristic points in the angle motion boundary to be the same.
4. The method according to claim 1, wherein the inputting the angle and the stroke value of each feature point into a fitting tool to obtain a fitting curve and synchronously generating a relation polynomial of the angle and the stroke value comprises:
importing the angles and the travel values of the plurality of feature points into an EXCEL table from small to large according to the angles;
and generating a corresponding relation polynomial of a fitting curve by using a fitting function of the EXCEL table.
5. The method of claim 4, further comprising:
selecting a group of check points from the fitting curve, and acquiring the angle and the travel value of each check point;
generating a check relation polynomial according to the angle and the travel value of each check point;
and generating an error coefficient according to the relation polynomial and the check relation polynomial.
6. A mechanical characteristic detection system of a high voltage circuit breaker, comprising:
the transmission composition unit is configured for setting a transmission angle range and generating a transmission diagram according to the transmission angle range and the crank arm transmission structure of the high-voltage circuit breaker; further comprising: the angle construction module is configured for determining an angle motion boundary of a crank arm transmission tail end and a relative position of a crank arm power end motion track and the angle motion boundary according to a transmission principle of a crank arm transmission structure, wherein the angle motion boundary comprises an initial boundary radius, an ending boundary radius and an arc-shaped edge; the stroke construction module is configured to form a power end linear track corresponding to the angular motion boundary according to the relative position, the power end linear track comprises a starting point and an end point, and points in the angular motion boundary and points on the power end linear track have a one-to-one correspondence relationship;
the characteristic selection unit is configured for selecting a plurality of characteristic points in the angle motion boundary of the transmission diagram and acquiring the angle and the stroke value of each characteristic point from the transmission diagram; further comprising: the track corresponding module is configured for calibrating track points corresponding to the characteristic points on the linear track of the power end according to the one-to-one correspondence relationship; the angle calculation module is configured to use a radial included angle between the characteristic point and the initial boundary radius as an angle of the characteristic point; the stroke calculation module is configured to use the distance between the track point corresponding to the feature point and the starting point as a stroke value of the feature point;
the characteristic fitting unit is configured for inputting the angle and the travel value of each characteristic point into a fitting tool to obtain a fitting curve and synchronously generating a relation polynomial of the angle and the travel value;
and the stroke calculation unit is configured to input the actual angle acquired by the rotary sensor into the relation polynomial and calculate an actual stroke value.
7. The system of claim 6, wherein the actuation patterning unit comprises:
and the range setting module is configured for setting the transmission angle range to include the maximum angle range of the rotary transmission of the high-voltage circuit breaker in the industry.
8. The system of claim 6, wherein the feature extraction unit comprises:
and the angle setting module is configured for setting the radial included angles between the adjacent characteristic points in the angle motion boundary to be the same.
9. A terminal, comprising:
a processor;
a memory for storing instructions for execution by the processor;
wherein the processor is configured to perform the method of any one of claims 1-5.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-5.
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