A method and device for detecting spatial accuracy of a roll system based on an optical fiber gyroscope

Abstract

The application provides a kind of based on optical fiber gyroscope's roll system space precision detection method and device, method includes the following steps: S1, clean the dust of the roll surface to be measured trace;S2, gyroscope is placed in horizontal rigid ground and starts preheating, makes the operating side of gyroscope with reference roll parallel;S3, make gyroscope device repeatedly in rated angle range along the roll surface sliding, wait for gyroscope display screen display alignment is completed, executes S4;S4, each adjacent plane intersection direction vector is measured;S5, the direction vector of intersection is carried out data reliability evaluation;If it meets the precision requirement, execute S6;S6, the direction vector of intersection that meets the precision is carried out based on the levelness, parallelism calculation of right-hand coordinate system.The application method can utilize the three precision gyroscopes carried to accurately measure the equipment space precision index, and according to data processing result gives roll system space position adjustment scheme, and then ensures the accuracy of roll system space position.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metallurgical equipment space precision detection, in particular, and more particularly to a roller system space precision detection method and device based on a fiber-optic gyroscope. BACKGROUND

[0002] As a contact-type device space precision detection technology, the gyroscope space precision detection can rely on the built-in fiber-optic gyroscope and phase difference measurement element in the gyroscope device to quickly obtain the rotational angular velocity of the gyroscope device along three axes, and through geometric calculation, the roller system space precision is quickly detected, and the rapid detection of the space precision of the metallurgical equipment is realized. The core of the gyroscope roller system space precision detection technology lies in the measurement of the rotational angular velocity of the gyroscope and the calculation of the space precision index. The measured rotational angular velocity can be integrated with the measured time to obtain the rotational angle, and the plane analytical expression can be obtained according to the spatial geometry, and the required space precision index can be calculated using the direction vector of the intersection line of adjacent planes. At the same time, the angular velocity required for the gyroscope space precision detection is obtained by coupling three gyroscopes, and the calibration of the initial reference, the measurement of the phase difference in each direction, and the calculation of the angle in each direction are key steps that are crucial to the accuracy of the final result of the roller system space precision detection.

[0003] At present, the industry has successively introduced various solutions to the problem of metallurgical equipment space precision detection. Patent CN202310203993.1 proposes a rolling mill space position detection method, which obtains real-time initial position data and real-time position data based on a certain medium and electronic equipment, and detects the accuracy of the space position of the rolling mill. Patent CN202111441536.3 proposes a device and method for measuring the axial displacement of a universal roller system, which uses two displacement sensors placed at a certain position to measure the displacement of the universal roller system. Although the above-mentioned patents propose certain detection methods, they cannot form high-precision measurement results with the devices they rely on, and the operation is complex.

[0004] Patent CN202310759243.2 proposes a large supporting roller three-dimensional space precision detection method and device, which uses a high-precision laser tracker to establish a three-dimensional coordinate system in space, and obtains a roller body model by fitting the coordinate sampling points of the roller body, lining and turning station, to detect the space precision of the supporting roller. Patent CN 202011081867.6 proposes a new type of rolling mill equipment space precision detection method, which is based on a laser tracker coordinate system, and the coordinates of each sampling point are fitted to obtain the roller axis, and the inclination direction of the roller axis is obtained based on this. Patent CN 202211228261.X proposes a five-axis machine tool space positioning precision detection device and method, which uses a laser interferometer, a photoelectric position sensitive sensor and a beam splitter to form a measurement sensor head. The machine tool drives the measurement sensor head to move along the preset measurement trajectory in the working space, and the spatial positioning error of the machine tool is analyzed and calculated by switching the data measured at different positions. Patent CN201710725165.9 proposes a cold rolling mill window space position size precision online detection method, which uses a laser detection device to detect, sets the work station, the horizontal plane, the rolling production center line, and the rolling mill window coordinate system origin detection and establishment, and analyzes the space position size precision of the rolling mill window. Although the above patents are based on high-precision detection devices, the operation method is complex and time-consuming. The core of metallurgical equipment space precision detection is fast and high-precision detection, and the current detection methods all have different degrees of precision defects or detection efficiency problems. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a roller system space precision detection method and device based on a fiber-optic gyroscope. The present application can accurately measure the space precision index of the equipment by using the three precision gyroscopes carried, and provide a roller system space position adjustment scheme according to the data processing result, thereby ensuring the accuracy of the roller system space position. To solve the problem of different degrees of precision defects or detection efficiency problems in the existing detection methods.

[0006] The technical means adopted by the present application are as follows:

[0007] A roller system space precision detection method based on a fiber-optic gyroscope, comprising the following steps:

[0008] S1, stopping the rolling mill where the roller system to be measured is located, separating the roller to be measured, and cleaning the dust and rust marks on the surface of the roller to be measured;

[0009] S2, place the gyroscope on a horizontal rigid ground and start preheating, make the operation side of the gyroscope parallel to the reference roller, and input the measurement index as levelness and parallelism into the gyroscope;

[0010] S3, a right-hand coordinate system is established, the y-axis of the right-hand coordinate system is coincided with the center axis direction of the reference roller, and the positive half-axis is from left to right from the side of the reference roller facing the operator; the z-axis of the right-hand coordinate system is the vertical direction of the horizontal rigid ground, and the positive direction is vertically upward; the x-axis is the direction perpendicular to the yoz plane, and the positive direction is the back direction of the operator when operating; the gyroscope device is horizontally attached to the surface of the reference roller, the gyroscope device is repeatedly slid along the roller surface within the rated angle range, and when the gyroscope display screen displays that the alignment is completed, S4 is executed;

[0011] S4, the gyroscope device is used to set the measured roller model, and the measurement is started; the gyroscope device is horizontally attached to the surface of the measured roller, the first measured plane is set as the initial plane, and then the gyroscope device is repeatedly slid along the rated angle range on one side of the measured roller system, and the direction vector of the intersection line is measured;

[0012] S5, the data reliability of the direction vector of the intersection line is evaluated; if the accuracy requirement is not met, the intersection line is excluded, and if the accuracy requirement is met, S6 is executed;

[0013] S6, the direction vector of the intersection line meeting the accuracy requirement is calculated based on the horizontal degree and the parallel degree of the right-hand coordinate system.

[0014] Further, the rated angle range is 20 degrees to 90 degrees.

[0015] Further, S4 specifically includes the following steps:

[0016] S41, the first measured plane is preset as the initial plane, and the expression of the initial plane is:

[0017] A0x+B0y+C0z+D=0;

[0018] In the formula, A0, B0, C0 and D are constants, and A0, B0 and C0 are not all 0;

[0019] S42, within dt n , the angular velocities ω n1 , ω n2 and ω n3 of the gyroscope along the three directions of the right-hand coordinate system are measured, wherein

[0020] The angular velocities are integrated with time to obtain the angle change amounts θ n1 , θ n2 and θ n3 in the three directions, wherein θ nm =∫ω nm dt n ,(m=1,2,3);

[0021] The positive half axis of the coordinate axis is defined as the positive direction, and the negative direction is defined as the negative direction.

[0022] Wherein: c is the speed of light; λ is the wavelength; is the phase difference; R is the radius of the fiber ring; l is the circumference of the fiber ring; N is the number of turns of the fiber ring;

[0023] S43, rotate the plane along the y-axis by θ n2 After that, the plane analytic expression is A n2 x+B n-1 y+C n2 z+D=0, wherein:

[0024]

[0025] S44, rotate along the x-axis by θ n1 After that, the plane analytic expression is A n2 x+B n1 y+C n1 z+D=0, wherein:

[0026]

[0027] S45, rotate along the z-axis by θ n3 After that, the plane analytic expression is A n3 x+B n3 y+C n1 z+D=0, wherein:

[0028]

[0029] S46, according to the above, let A n =A n3 ,B n =B n3 ,C n =C n1 ;

[0030] S47, using the intersection line direction vector of the n-1th plane and the n th plane obtained after rotating along the three axes by dt n After that, the intersection line direction vector is calculated as:

[0031]

[0032] S48, repeat S42-S47 to measure the direction vector of the subsequent intersection line.

[0033] Further, S5 specifically comprises the following steps:

[0034] S51, assuming that the measured roll length is L, calculate the initial plane and the reference roll center axis angle b0, the formula is as follows:

[0035]

[0036] Calculate the included angle b of the intersection line of adjacent planes and the reference roller axis n ,

[0037]

[0038] S52, calculate the included angle a of the to-be-evaluated intersection line and the last intersection line n ;

[0039]

[0040] S53, calculate And If And It is considered that the to-be-evaluated intersection line is reliable.

[0041] Further, S6 specifically comprises the following steps:

[0042] S61, define the parallelism as the included angle between the projection of the intersection line vector on the xoy plane and the y axis, and then convert it into a deviation per meter, called the parallelism of the roller system relative to the reference zero position, denoted as Hor, the counterclockwise direction is positive, the clockwise direction is negative, the unit is mm / m, and the calculation formula is:

[0043]

[0044] S62, define the horizontal degree as the included angle between the projection of the intersection line on the zoy plane and the y axis, and then convert it into a deviation per meter, called the horizontal degree of the shaft system relative to the reference zero position, denoted as Ver, the counterclockwise direction is positive, the clockwise direction is negative, the unit is mm / m, and the calculation formula is:

[0045]

[0046] Further, the reference roller is buried in the ground to ensure the stability of the reference roller; the reference roller surface is higher than the ground and parallel to the production line where the to-be-measured roller system is located, which can be used for reference leveling of the gyroscope device.

[0047] The application also provides a roller system space precision detection device based on an optical fiber gyroscope, which is used to realize the roller system space precision detection method based on the optical fiber gyroscope, and comprises a gyroscope and a gyroscope device integrated electronic element connected in a gyroscope device shell; a gyroscope device display screen is arranged on the upper part of the gyroscope device shell, and a gyroscope device handrail is arranged on the side surface of the gyroscope device shell.

[0048] The gyroscope device integrated electronic element includes a display module, a space precision index calculation module and an initial data detection calculation module; the initial data detection calculation module includes a phase difference detector, a intersection line direction vector calculator and a reliability evaluator.

[0049] The application further provides a storage medium, which comprises a stored program, wherein the program performs any one of the above-mentioned fiber-optic gyroscope-based roll system space precision detection methods when running.

[0050] The application further provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, and the processor performs any one of the above-mentioned fiber-optic gyroscope-based roll system space precision detection methods by running the computer program.

[0051] Compared with the prior art, the application has the following advantages:

[0052] The application is based on a high-precision fiber-optic gyroscope and adopts a contact detection mode, so that the roll surface space precision data can be quickly and accurately obtained, and the direction vector of the subsequent precision calculation required face-face intersection line can be quickly calculated through the internal electronic device, thereby solving the problem of low measurement efficiency of the traditional detection method and enabling the roll space precision detection to be quickly performed.

[0053] The application is based on the direction vector of the detected face-face intersection line, and through the reliability evaluation and the direction vector space precision conversion calculation formula, the roll surface space precision index can be accurately obtained, thereby solving the problem of low detection precision of the traditional detection method and enabling the roll space precision detection to be given a high-reliability adjustment scheme. BRIEF DESCRIPTION OF DRAWINGS

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0055] Figure 1 It is a method flowchart of the application.

[0056] Figure 2 It is an initial data measurement flowchart of the application.

[0057] Figure 3 It is a data reliability evaluation flowchart of the application.

[0058] Figure 4 It is a measurement data post-processing flowchart of the application.

[0059] Figure 5 It is the overall diagram of the gyroscope device outside the application.

[0060] Figure 6 It is the internal structure diagram of the gyroscope device of the application.

[0061] Figure 7 It is the electronic component configuration diagram of the gyroscope device of the application.

[0062] In the figure: 1, the handrail of the gyroscope device; 2, the display screen of the gyroscope device; 3, the shell of the gyroscope device; 4, the gyroscope; 5, the integrated electronic components of the gyroscope device. DETAILED DESCRIPTION

[0063] In order to make the person skilled in the art better understand the application scheme, the technical scheme in the embodiment of the application will be described clearly and completely in combination with the drawings in the embodiment of the application. Obviously, the described embodiment is only a part of the embodiment of the application, not all. Based on the embodiment in the application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the application.

[0064] It should be noted that the terms "first", "second" and the like in the specification and claims of the application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0065] As Figure 1 shown, the application provides a roll system space precision detection method based on fiber optic gyroscope. The gyroscope device used in the method needs to cooperate with a pre-buried reference roll to improve the measurement accuracy and efficiency. The method comprises the following steps:

[0066] S1, stopping the rolling mill where the roll system to be measured is located, separating the roll to be measured, and cleaning the surface with a cleaning shovel and a cleaning brush to make the measured surface free of obvious dust and rust marks.

[0067] S2, the gyroscope is started and preheated, the gyroscope is placed on a horizontal rigid ground, the operation side is parallel to the "reference roll", and the measurement index of this time is input as the levelness and parallelism.

[0068] S3. Establish a right-handed coordinate system. The y-axis in this system coincides with the central axis of the reference roller. The positive semi-axis is from left to right, as seen from the side facing the reference roller. The z-axis in this system is perpendicular to the horizontal rigid ground, with the positive direction being vertically upward. The x-axis is perpendicular to the yoz plane, with the positive direction being the direction of the operator's back during operation. Place the gyroscope device horizontally against the surface of the reference roller, repeatedly sliding it along the roller surface within the rated angle range. Once the gyroscope display indicates alignment is complete, proceed to S4.

[0069] S4. The operator holds the gyroscope device, sets the model of the roller to be measured, clicks to start measurement, and then holds the gyroscope device horizontally against the surface of the roller to be measured. The plane measured for the first time is set as the initial plane. The gyroscope is then repeatedly slid along the range of 20 to 90 degrees on one side of the roller to be measured to obtain data.

[0070] S41. Preset the plane measured for the first time as the initial plane, whose expression is A0x+B0y+C0z+D=0.

[0071] Where: A0, B0, C0, D are constants, and A0, B0, C0 are not all 0;

[0072] S42, in dt n The angular velocity ω of the gyroscope in three directions is measured within a certain time period. n1 、ω n2 、ω n3 ,in:

[0073]

[0074] The angle change θ in three directions is obtained by integrating with time n1 ,θ n2 ,θ n3 ,in:

[0075] θ nm =∫ω nm dt n ,(m=1,2,3).

[0076] It is stipulated that when looking at the plane perpendicular to the positive half axis of the coordinate axis, counterclockwise rotation is positive and clockwise rotation is negative.

[0077] Where c is the speed of light (m / s); λ is the wavelength (m); is the phase difference, (rad); R is the radius of the fiber ring, (m); l is the circumference of the fiber ring, (m); N is the number of fiber ring turns;

[0078] S43, the plane rotates along the y-axis θ n2 After that, the plane analytical expression is An2 x+B n-1 y+C n2 z+D = 0; wherein:

[0079]

[0080]

[0081] S44, rotate by θ along x-axis n1 After that, the plane analytic expression is A n2 x+B n1 y+C n1 z+D = 0; wherein:

[0082]

[0083] S45, rotate by θ along z-axis n3 After that, the plane analytic expression is A n3 x+B n3 y+C n1 z+D = 0; wherein

[0084]

[0085] S46, from the above, let A n = A n3 , B n = B n3 , C n = C n1 .

[0086] S47, using the direction vector of the intersection line of the nth-1 plane and the nth plane obtained after rotating by dt n along the three axes as the basis for calculation, the direction vector of the intersection line is calculated as:

[0087] For convenience, now define L n = B n-1 C n -B n C n-1 ; M n = A n C n-1 -A n-1 C n ; N n = A n-1 B n -A n B n-1 ; therefore

[0088] S48, repeat S42-S47 to measure the direction vector of the subsequent intersection line.

[0089] S5, data credibility evaluation.

[0090] S51, assuming that the measured roller system length is L, first calculate the angle b0 between the initial plane and the reference roller center axis,

[0091]

[0092] Then calculate the angle b between the intersection line of adjacent planes and the reference roller axis n ,

[0093]

[0094] S52, calculate the angle a between the line and the nth intersection line n .

[0095]

[0096] S53, calculate And If And It is considered that the intersection line to be evaluated is credible.

[0097] S6, post-processing of measurement data, and the coordinate system of the reference roller is the calculation standard.

[0098] S61, define the parallelism as the angle between the projection of the intersection line vector on the xoy plane and the y axis, and then convert it into a deviation per meter, called the parallelism of the roller system relative to the reference zero position, denoted as Hor, the counterclockwise direction is positive, the clockwise direction is negative, the unit is mm / m, and the calculation formula is:

[0099]

[0100] S62, define the horizontal degree as the angle between the projection of the intersection line on the zoy plane and the y axis, and then convert it into a deviation per meter, called the horizontal degree of the shaft system relative to the reference zero position, denoted as Ver, the counterclockwise direction is positive, the clockwise direction is negative, the unit is mm / m. The calculation formula is:

[0101]

[0102] S7, according to each spatial accuracy index, implement device spatial accuracy control. According to the parallelism Hor, adjust the roller system to move along the x axis direction -Hor·L; according to the horizontal degree Ver, adjust the roller system to move along the z axis direction -Ver·L.

[0103] The application also provides a roller system spatial accuracy detection device based on an optical fiber gyroscope, which is used to realize the roller system spatial accuracy detection method based on the optical fiber gyroscope, such as Figures 5-7As shown, it comprises: a gyroscope 4 and a gyroscope device integrated electronic element 5 connected in a gyroscope device shell 3, a gyroscope device display screen 2 is arranged on the upper part of the gyroscope device shell 3, and a gyroscope device handrail 1 is arranged on the side of the gyroscope device shell 3.

[0104] The gyroscope device integrated electronic element 5 comprises a display module, a space precision index calculation module and an initial data detection calculation module; the initial data detection calculation module comprises a phase difference detector, a intersection line direction vector calculator and a reliability evaluator.

[0105] The application further provides a storage medium comprising a stored program, wherein the program, when executed, performs the roll system space precision detection method based on the fiber optic gyroscope.

[0106] The application further provides an electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor performs the roll system space precision detection method based on the fiber optic gyroscope by executing the computer program.

[0107] Embodiment

[0108] A roll system space precision detection method based on a fiber optic gyroscope, steps are as follows:

[0109] S1, stopping the rolling mill where the roll system to be measured is located, separating the roll to be measured, and cleaning the surface with a cleaning shovel and a cleaning brush so that the surface to be measured is free of dust and rust.

[0110] S2, starting the gyroscope and preheating, placing the gyroscope on a horizontal rigid ground, operating the side parallel to the "reference roll", and inputting the measurement index as the levelness and parallelism.

[0111] S3, defining a right-handed coordinate system, wherein the y-axis coincides with the length direction of the reference roll, and the z-axis is perpendicular to the horizontal rigid ground; the operator horizontally sticks the gyroscope device to the surface of the reference roll, repeatedly slides along the roll surface between 20 degrees and 90 degrees, and stops this step when the gyroscope display screen displays that the alignment is completed. Wherein, the operator needs to operate on one side of the reference roll at all times.

[0112] S4, the operator holds the gyroscope device, sets the roll model to be measured, clicks to start measurement, then holds the gyroscope device, horizontally sticks it to the surface of the roll to be measured, sets the first measured plane as the initial plane, then repeatedly slides along the 20-degree to 90-degree interval on one side of the roll system to be measured to measure the data.

[0113] S41, the first measured plane is preset as the initial plane, and the expression thereof is x+y-10085z+1=0.

[0114] S42, the angular velocity ω of the gyroscope along three directions is measured in 0.001 s 11 , 12 , 13 Wherein:

[0115]

[0116] c = 299792458 m / s, l = 6 × 10 -7 m, the phase difference of x direction is measured as The phase difference of y direction is measured as The phase difference of z direction is measured as The radius of the fiber ring is 90 mm, the circumference of the fiber ring is 180 π mm, the number of turns of the fiber ring is 3500 turns, and the angular velocity in each direction is measured as:

[0117]

[0118] The angle change θ in three directions is obtained by time integration 11 , 12 , 13 , 11 = 9.96439 × 10 -7 °; θ 12 = 0.020250 °; θ 13 = 9.24117 × 10 -7 °.

[0119] S43, take the first plane after the initial plane as an example, after the initial plane rotates θ n2 Along the y axis, the plane analytical expression is A 12 x + B0y + C 12 z + D = 0; wherein:

[0120]

[0121]

[0122] S44, after rotating θ 11 Along the x axis, the plane analytical expression is A 12 x + B 11 y + C 11 z + D = 0; wherein:

[0123]

[0124] S45, after rotating θ 13 Along the z axis, the plane analytical expression is A 13 x + B 13 y + C 11 z + D = 0; wherein:

[0125]

[0126] S46. In summary, let A1 = A 13 ,B1=B 13 ,C1=C 11 Therefore, A1=A 13 =-2.56437;

[0127] B1=B 13 =1.00018; C1=C 11 =-10,084.99972.

[0128] S47. Using the direction vector of the intersection line between the initial plane and the first plane obtained after rotating along the three axes for 0.001s as the basis for calculation, the direction vector of the intersection line is calculated to be

[0129] S48, repeat S42-S47 to measure the direction vector of the second intersection line:

[0130]

[0131] S5. Data credibility assessment.

[0132] S51, the measured roller length is 2m. First calculate the angle between the initial plane and the central axis of the reference roller

[0133]

[0134] The angle between the intersection of adjacent planes and the axis of the reference roller is calculated as:

[0135]

[0136] S52, calculate the angle α1 between the two intersection lines,

[0137]

[0138] S53, Therefore, the measurement data is considered to be credible.

[0139] S6. Post-processing of measurement data, based on the coordinate system of the reference roller as the calculation standard.

[0140] S61. Parallelism is defined as the angle between the projection of the intersection vector on the xoy plane and the y axis, which is then converted into a deviation per meter, called the parallelism of the axis system relative to the reference zero position, denoted as Hor, with counterclockwise direction as positive and clockwise direction as negative, in units of mm / m. The calculation formula is:

[0141]

[0142] Therefore, the measurement result is:

[0143]

[0144] S62, define the level as the angle between the projection of the intersection line on the zoy plane and the y axis, and convert it into the deviation per meter, called the level of the shaft system relative to the reference zero position, denoted as Ver, clockwise is positive and counterclockwise is negative, unit mm / m. The calculation formula is:

[0145]

[0146] Therefore, the measurement result is:

[0147]

[0148] S7, according to each spatial accuracy index, implement the spatial accuracy control of the equipment. According to the average parallelism Hor, adjust the end of the roller system to move along the xoy plane -Hor·L=0.04530mm; according to the average level Ver, adjust the roller system to move along the zoy plane -Ver·L=0.19835mm.

[0149] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for detecting the spatial accuracy of a roller system based on a fiber optic gyroscope, characterized in that: The steps include: S1. Stop the rolling mill where the roll to be tested is located, separate the roll to be tested, and clean the dust and rust on the surface of the roll to be tested; S2. Place the gyroscope on a level, rigid surface and start preheating. Make sure the operating side of the gyroscope is parallel to the reference roller. Input the horizontality and parallelism of the measurement into the gyroscope. S3. Establish a right-handed coordinate system. The y-axis in the right-handed coordinate system coincides with the central axis of the reference roller. From the side where the operator faces the reference roller, the positive semi-axis is from left to right. The z-axis in the right-handed coordinate system is perpendicular to the horizontal rigid ground, with the vertical upward direction as the positive direction. The x-axis is perpendicular to the yoz plane, with the operator's back direction as the positive direction. The gyroscope device is placed horizontally against the surface of the reference roller, and the gyroscope device is repeatedly slid along the roller surface within a rated angle range. After the gyroscope display screen indicates that the alignment is complete, S4 is executed; the rated angle range is 20 degrees to 90 degrees; S4. Use the gyroscope device to set the model of the roller to be measured and start measurement. Place the gyroscope device horizontally and tightly against the surface of the roller to be measured, set the plane measured for the first time as the initial plane, and then repeatedly slide the gyroscope device along the rated angle range on one side of the roller to be measured to measure the direction vector of the intersection line of each adjacent plane. S41. The plane measured for the first time is preset as the initial plane. The initial plane expression is: A0x+B0y+C0z+D=0; Where: A0, B0, C0, D are constants, and A0, B0, C0 are not all 0; S42, in dt n During this time, the angular velocity w of the gyroscope in the three directions of the right-hand coordinate system is measured. n1 、w n2 、w n3 ,in Integrate the angular velocity with time to obtain the angular changes θ in three directions n1 ,θ n2 ,θ n3 , where θ nm =∫w nm dt n ,(m=1,2,3); It is stipulated that when looking at the plane perpendicular to the positive semi-axis of the coordinate axis, counterclockwise rotation is positive and clockwise rotation is negative; Where: c is the speed of light; λ is the wavelength; is the phase difference; R is the radius of the fiber ring; l is the circumference of the fiber ring; N is the number of turns of the fiber ring; S43, the plane rotates along the y-axis θ n2 After that, the plane analytical expression is A n2 x+B n-1 y+C n2 z + D = 0, where: S44, rotate θ along the x-axis n1 After that, the plane analytical expression is A n2 x+B n1 y+C n1 z + D = 0, where: S45, rotate θ along the z axis n3 After that, the plane analytical expression is A n3 x+B n3 y+C n1 z + D = 0, where: S46. In summary, let A n =A n3 ,B n =B n3 ,C n =C n1 ; S47, using the n-1th surface and rotating dt along three axes n The direction vector of the intersection line of the nth plane obtained is used as the basis for calculation, and the direction vector of the intersection line is calculated to be: L n = B n-1 C n - B n C n-1 ; M n = A n C n-1 - A n-1 C n ; N n = A n-1 B n - A n B n-1 ; Therefore S48, repeat S42 to S47 to measure the direction vector of the subsequent intersection line; S5. Evaluate the data credibility of the direction vector of the intersection line; if it does not meet the accuracy requirements, remove the intersection line; if it does meet the accuracy requirements, execute S6; S51. Assuming that the measured roll length is L, calculate the angle b0 between the initial plane and the central axis of the reference roll using the following formula: Calculate the angle b between the intersection of adjacent planes and the axis of the reference roller n , S52, calculate the angle α between the intersection line to be evaluated and the previous intersection line n ; S53, calculation and like and The intersection line to be evaluated is considered credible; S6. Calculate the horizontality and parallelism of the direction vector of the intersection line that meets the accuracy based on the right-hand coordinate system.

2. The method for detecting roller system spatial accuracy based on fiber optic gyroscope according to claim 1, characterized in that: S6 specifically includes the following steps: S61. Parallelism is defined as the angle between the projection of the intersection vector on the xoy plane and the y axis, which is then converted into a deviation per meter, called the parallelism of the roller system relative to the reference zero position, denoted as Hor, with counterclockwise direction as positive and clockwise direction as negative, in units of mm / m. The calculation formula is: S62. Define horizontality as the angle between the projection of the intersection line on the zoy plane and the y-axis, and then convert it into a deviation per meter, called the horizontality of the axis system relative to the reference zero position, denoted as Ver, with counterclockwise direction as positive and clockwise direction as negative, in units of mm / m. The calculation formula is:

3. The method for detecting the spatial accuracy of a roller system based on a fiber optic gyroscope according to claim 1, wherein: The reference roller is buried in the ground to ensure its stability; the surface of the reference roller is higher than the ground and parallel to the production line where the roller system to be measured is located, and is used for reference leveling of the gyroscope device.

4. A device for detecting the spatial accuracy of a roller system based on a fiber optic gyroscope, for implementing the method for detecting the spatial accuracy of a roller system based on a fiber optic gyroscope according to any one of claims 1 to 3, characterized in that: include: A gyroscope (4) and a gyroscope device integrated electronic component (5) are connected and arranged in a gyroscope device housing (3); a gyroscope device display screen (2) is arranged on the upper portion of the gyroscope device housing (3); and a gyroscope device handrail (1) is arranged on the side of the gyroscope device housing (3); The gyroscope device integrated electronic component (5) comprises a display module, a spatial accuracy index calculation module and an initial data detection calculation module; the initial data detection calculation module comprises a phase difference detector, an intersection direction vector calculator and a credibility evaluator.

5. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is run, the roller system spatial accuracy detection method based on the fiber optic gyroscope according to any one of claims 1 to 3 is executed.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: The processor executes the roller system spatial accuracy detection method based on the fiber optic gyroscope according to any one of claims 1 to 3 by running the computer program.

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