Device and method for measuring deformation quantity of box-type substation

Abstract

The invention discloses a box-type substation deformation quantity measuring device and method, and relates to the technical field of box-type substation deformation quantity measurement. The box-type substation deformation quantity measuring device comprises a measuring frame, two groups of measuring devices and two groups of driving devices, and the driving devices are used for driving a second telescopic frame and the measuring devices to move up and down; the driving device comprises a servo motor, a first transmission part, a second transmission part and a threaded rod, the first transmission part drives the second transmission part to intermittently rotate forwards and backwards, so that the threaded rod intermittently rotates forwards and backwards, the threaded rod is connected with the second telescopic frame, the second telescopic frame is intermittently folded and unfolded, and the horizontal position of the measuring device is adjusted. According to the invention, deformation quantity measurement is carried out on the surface of the housing of the box-type substation, and response measures are taken in time according to the deformation quantity value by observing the external deformation, so that potential safety hazards caused by deformation of the external structure of the box-type substation are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of deformation measurement of box-type substations, and in particular to a deformation measurement device and method for box-type substations. Background Art

[0002] Box-type substation is a factory-prefabricated indoor and outdoor compact power distribution equipment that integrates high-voltage switchgear, distribution transformers and low-voltage distribution devices according to a certain wiring scheme. It is usually installed in one or more boxes and has the characteristics of compact structure, small footprint, easy installation and maintenance. It is widely used in urban power grids, residential areas, commercial centers, factories and other places.

[0003] Among them, the high-voltage room mainly contains high-voltage switchgear, fuses, lightning arresters, etc., which are used to control and protect high-voltage circuits; the transformer room is equipped with a distribution transformer to convert high-voltage electricity into low-voltage electricity; the low-voltage room contains low-voltage distribution devices, such as low-voltage switches, distribution cabinets, etc., which are used to distribute low-voltage electrical energy; the outer casing plays a role in protecting internal equipment and preventing external interference and the influence of bad weather.

[0004] During the long-term operation of a box-type substation, it will be affected by many factors, such as temperature change, mechanical stress, foundation settlement, etc., which may cause its structure to deform and pose a safety hazard. Therefore, a deformation measurement device and method for a box-type substation are proposed to solve the above problems. Summary of the invention

[0005] In view of the above deficiencies in the prior art, the present invention provides a box-type substation deformation measurement device and method that can measure the deformation of the outer shell surface of the box-type substation, observe the deformation of the outside, and take timely response measures according to the deformation value, so as to avoid safety hazards caused by deformation of the external structure of the box-type substation.

[0006] To achieve the above purpose, the present invention provides a deformation measuring device for a box-type substation, comprising a measuring frame, the measuring frame comprising two foldable columns arranged side by side and two groups of first telescopic frames arranged side by side; two groups of measuring devices, the measuring devices comprising a laser ranging sensor and a mechanical ranging device, which are used to synchronously perform deformation laser measurement and deformation mechanical measurement on the outer surface of the box-type substation; two groups of driving devices, the back of the driving device is provided with a second telescopic frame, the other end of the second telescopic frame is connected to the measuring device on the same side, the driving device is arranged on the column and is slidably connected to the column up and down, and is used to drive the second telescopic frame and the measuring device to move up and down; the driving device comprises a servo motor, a first transmission member, a second transmission member and a threaded rod, the first transmission member is installed at the output end of the servo motor, the second transmission member is arranged on one side of the first transmission member, the first transmission member drives the second transmission member to intermittently rotate forward and reverse, so that the threaded rod intermittently rotates forward and reverse, the threaded rod is connected to the second telescopic frame, so that the second telescopic frame is intermittently folded and unfolded, and the horizontal position of the measuring device is adjusted.

[0007] Furthermore, two groups of the first telescopic frames are arranged between two columns, and the measuring frame is installed on the outside of one side to be measured of the box-type substation; the column includes an upper column and a lower column, the upper column and the lower column are hingedly connected, and a positioning structure is installed on one side of the upper column and the lower column for positioning the upper column after the upper column is unfolded, and a limiting structure is arranged on one side of the upper column close to the hinge and one side of the lower column close to the hinge for limiting the upper column when the upper column is folded.

[0008] Furthermore, the positioning structure includes a positioning pin, a positioning spring, a pin block, a stop block and a fixed block. The stop block and the fixed block are both fixedly mounted on the upper column, the pin block is fixedly mounted on the lower column, the positioning pin passes through the fixed block and the pin block in sequence from top to bottom, the positioning pin is installed on the fixed block through the positioning spring, the positioning spring is fixedly mounted between the inner side of the upper end of the positioning pin and the upper end of the fixed block, and the stop block is arranged above the fixed block to limit the positioning pin after being lifted up; the limiting structure includes a plug-in block, a plug-in rod, a limit spring and a pull plate, the plug-in block is fixedly mounted on the upper column, the plug-in rod is installed in the lower column, the pull plate is fixedly mounted at one end of the plug-in rod and is arranged on the outside of the lower column, the limit spring is sleeved and installed on the outside of the plug-in rod and fixed in the lower column, and a plug-in groove compatible with the plug-in block is opened on one side of the lower column near the hinge. When the column is folded, the plug-in rod extends horizontally to the plug-in block plugged in the plug-in groove.

[0009] Furthermore, the first telescopic frame is a frame composed of a plurality of cross-connected rod bodies, a rod body located at a lower end of the first telescopic frame is slidably connected to a guide column, and a rod body located at a lower end of the first telescopic frame is connected to a hydraulic rod; the columns on both sides are relatively close to one side and are respectively provided with mounting grooves, the guide column is installed in the mounting groove on the inner side of the column on the same side, and the hydraulic rod is installed in the mounting groove on the inner side of the column on the other side; a brake wheel is installed at the bottom of the column to assist the movement of the column; the measuring device also includes a measuring box and a control device, the measuring box is arranged at one end of the second telescopic frame, and the control device is installed inside the measuring box; the second telescopic frame is also a frame composed of a plurality of cross-connected rod bodies, one end of the frame is connected to a connecting block, and the other end of the frame is connected to a slider, the slider is penetrated by a guide rod, and the guide rod is fixed to the back of the measuring box.

[0010] Furthermore, the first transmission member, the second transmission member and the outer cover of the threaded rod are provided with an installation box, and the servo motor is installed on the outer wall of the installation box by screws; the first rotating member includes a fifth gear, a fourth gear and a third gear, the fifth gear is arranged at the output end of the servo motor, two third gears are provided, and are symmetrically arranged up and down, the two third gears are meshingly arranged above and below the fifth gear, and the fourth gear is meshingly arranged on the side of the fifth gear close to the column; a sixth gear is fixedly provided at one end of the fourth gear close to the column, the sixth gear extends into the column, the sixth gear is meshingly connected with a toothed plate, the toothed plate is fixed in the column, a guide block is fixedly provided on the side of the installation box close to the column, and a connecting groove compatible with the guide block and the sixth gear is opened on the column.

[0011] Further, the second transmission member includes a toggle member, a groove wheel, a second gear and a first gear, the toggle member and the groove wheel are respectively provided with two upper and lower ones, the upper and lower groove wheels are coaxially symmetrically arranged, and the upper and lower toggle members are coaxially staggered; the toggle member includes a toggle wheel and a toggle rod eccentrically fixed on the top thereof, the toggle wheel is fixed on the top of the third gear above, and the toggle wheel is a cam; the second gear is fixed at the bottom of the upper groove wheel, the second gear is a partial gear, the second gear is intermittently meshed and connected with the first gear, and the first gear is fixed to the upper end of the threaded rod; the threaded rod passes through the connecting block and is threadedly connected with it, a guide plate is passed through the connecting block, the guide plate is fixed on the side wall of the installation box, and the connecting block extends from the outside to the installation box; a U-shaped groove is opened in an annular array on the groove wheel, if the upper toggle rod is engaged with a U-shaped groove on the upper groove wheel to make the second gear rotate, then after the rotation, the lower toggle rod is engaged with an adjacent U-shaped groove on the lower groove wheel to make the second gear rotate in the opposite direction, thereby realizing intermittent positive and reverse rotation of the threaded rod.

[0012] Furthermore, the laser ranging sensor is embedded in the measuring box on the side facing the box-type substation and is electrically connected to the control device; the mechanical ranging device includes a laser ranging sensor, which is embedded in the measuring box on the side facing the box-type substation and is electrically connected to the control device.

[0013] Furthermore, the mechanical ranging device includes a measuring ball, a cross bar, a connecting spring, a movable plate, a bracket and a camera. The cross bar runs through the measuring box, and one end close to the box-type substation is fixed on the measuring ball; the connecting spring is sleeved on the outside of the middle section of the cross bar, and one end is fixed on the inner wall of the movable plate, and the other end is fixed on the inner wall of the bracket. The cross bar runs through the bracket, and scale lines are provided on the cross bar. The movable plate is in a horizontally placed L shape, and its shorter side is fixedly sleeved on the cross bar, and its longer side extends from the inside to the outside to the outside of the measuring box away from the box-type substation; the camera is arranged under the movable plate, and the camera and the bracket are both installed in the measuring box by screws.

[0014] A measurement method for the above-mentioned box-type substation deformation measurement device includes the following steps: obtaining the measurement area parameters stored in the data repository, analyzing to obtain the coverage rate of the surface to be measured, and judging whether supplementary scanning is needed based on the coverage rate of the surface to be measured; obtaining the laser ranging data stored in the data repository, analyzing to obtain the laser measurement value; obtaining the mechanical ranging data stored in the data repository, analyzing to obtain the mechanical measurement value, combining with the laser measurement value, analyzing to obtain the comprehensive deformation, judging whether processing is needed based on the obtained comprehensive deformation; if processing is not needed, constructing an ARIMA model to obtain the deformation prediction value, and determining the scanning measurement frequency according to the deformation prediction value.

[0015] Further, based on the coverage rate of the surface to be measured, it is determined whether supplementary scanning is required, which specifically includes the following steps: The calculation formula of the coverage rate of the surface to be measured is: ; Where: is the measured area, is the total area of ​​the surface to be measured, and C is the coverage rate of the surface to be measured; the coverage rate of the surface to be measured is compared with the coverage rate threshold of the surface to be measured. If the coverage rate of the surface to be measured is less than the coverage rate threshold of the surface to be measured, supplementary scanning is required; if the coverage rate of the surface to be measured is not less than the coverage rate threshold of the surface to be measured, supplementary scanning is not required; based on the obtained comprehensive deformation amount, it is determined whether processing is required, which specifically includes the following steps: comparing the comprehensive deformation amount with the deformation value threshold corresponding to the corresponding surface of the corresponding box-type substation stored in the data repository, if the comprehensive deformation amount is less than the deformation value threshold, no processing is required; if the comprehensive deformation amount is not less than the deformation value threshold, processing is required; the calculation formula of the comprehensive deformation amount is: ; Where: is the total deformation of the ith measuring point, is the laser measurement value of the ith measurement point, is the mechanical measurement value of the ith measurement point, for The weight factor of for The weight factor of is the comprehensive deformation, i is the measurement point number, and n is the number of measurement points.

[0016] Furthermore, according to the predicted value of the deformation variable, the scanning measurement frequency is determined, which specifically includes the following steps: extracting the stored comprehensive deformation variable data from the data repository to construct a time series data set; checking whether there are missing values ​​and outliers in the data set, and performing data cleaning; using the unit root test to perform a stationarity test on the time series data set to obtain a stationary sequence; based on the stationary sequence after stationarization, using the autocorrelation function and the partial autocorrelation function to determine the order of the ARIMA model; based on the determined order of the ARIMA model, constructing the ARIMA model, and using the training data set to train the ARIMA model; the ARIMA model equation is: ; Where: is the value of the time series at time tg, is the random error of the time series at time tg, L is the lag operator, p is the autoregressive order, d is the difference order, q is the moving average order, is the autoregression coefficient, is the sliding average coefficient, m is the order number, is the d-order difference; the predicted value of the shape variable is obtained based on the ARIMA model equation, and the predicted value of the shape variable is compared with the maximum threshold of the shape variable stored in the data repository. If the predicted value of the shape variable is greater than the maximum threshold of the shape variable, the scanning measurement frequency is increased; if the predicted value of the shape variable is not greater than the maximum threshold of the shape variable, the predicted value of the shape variable is compared with the minimum threshold of the shape variable stored in the data repository. If the predicted value of the shape variable is greater than the minimum threshold of the shape variable, the scanning measurement frequency remains unchanged; if the predicted value of the shape variable is not greater than the minimum threshold of the shape variable, the scanning measurement frequency is reduced.

[0017] The present invention has the following beneficial effects: (1) The deformation measuring device of the box-type substation is used in conjunction with the measuring frame, measuring device and driving device to measure the deformation of the outer shell surface of the box-type substation on time. By observing the deformation of the outer shell, timely response measures are taken according to the deformation value to avoid the box-type substation from deforming due to the external structure, which may cause safety hazards.

[0018] (2) The deformation measuring device of the box-type substation is used to drive the measuring device to move up and down and horizontally through the cooperation of the second telescopic frame, the measuring device, the servo motor, the first transmission member, the second transmission member and the threaded rod, so as to realize multi-point measurement of the outer surface of the box-type substation, increase the measurement range, and ensure the reliability and accuracy of the measurement data.

[0019] (3) The deformation measuring device of the box-type substation can be used in combination with the provided upright column, the first telescopic frame, the guide column and the hydraulic rod to adjust the distance between the two upright columns according to the width of the surface to be measured of the box-type substation, so as to make it adaptable, with high flexibility, thereby improving the adaptability of the device.

[0020] (4) The deformation measurement method of the box-type substation determines whether to perform a supplementary scan by calculating the coverage rate of the surface to be measured, thereby ensuring the integrity of the measurement of the box-type substation shell and obtaining comprehensive measurement data. The comprehensive deformation is calculated by combining the laser ranging and mechanical ranging data, integrating the advantages of the two measurement methods, and providing more accurate data support for judging the equipment status. Measures can be taken in time to prevent equipment failures, ensure the continuity of power supply, reduce power outages and economic losses caused by equipment failures, and ensure the safe and stable operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention under the measuring state; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure from another perspective; Figure 4 It is a schematic diagram of the structure inside the installation box of the present invention; Figure 5 It is a schematic diagram of the structure of the connection between the guide rod and the slider of the present invention; Figure 6 It is a structural schematic diagram of the driving device of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the structure from another perspective; Figure 8 It is a schematic diagram of the structure inside the measuring box of the present invention; Fig. 9 It is a structural schematic diagram of the connection spring and the moving plate of the present invention; Fig.10 This is a schematic diagram of the structure of the column after folding of the present invention; Fig.11 This is a schematic diagram of the connection structure between the plug-in block and the plug-in rod of the present invention; Fig.12 For the present invention Figure 2 The structural diagram at A in the middle; Fig.13 The present invention is a structural schematic diagram of a method for measuring deformation of a box-type substation.

[0022] In the figure, 1, column; 2, first telescopic frame; 3, guide column; 4, hydraulic rod; 5, mounting groove; 6, mounting box; 7, measuring box; 8, second telescopic frame; 9, laser ranging sensor; 10, guide rod; 11, connecting block; 12, guide plate; 13, threaded rod; 14, first gear; 15, second gear; 16, groove wheel; 17, toggle wheel; 18, toggle rod; 19, third gear; 20, fourth gear; 21, fifth gear; 22, servo Servo motor; 23. Sixth gear; 24. Slider; 25. Control device; 26. Tooth plate; 27. Guide block; 28. Connecting groove; 29. ​​Crossbar; 30. Measuring ball; 31. Connecting spring; 32. Moving plate; 33. Bracket; 34. Camera; 35. Positioning pin; 36. Positioning spring; 37. Pin block; 38. Stop block; 39. Fixed block; 40. Plug-in block; 41. Plug rod; 42. Limit spring; 43. Pull plate; 44. Plug-in groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 12The embodiment of the present invention provides a technical solution: a deformation measuring device for a box-type substation, comprising a measuring frame, two groups of measuring devices and two groups of driving devices, the measuring frame comprising two foldable columns 1 arranged side by side and two groups of first telescopic frames 2 arranged side by side, the measuring device comprising a laser ranging sensor 9 and a mechanical ranging device, which are used to synchronously perform deformation laser measurement and deformation mechanical measurement on the outer surface of the box-type substation, a second telescopic frame 8 is provided on the back of the driving device, the other end of the second telescopic frame 8 is connected to the measuring device on the same side, the driving device is arranged on the column 1, and is connected to the column 1 for sliding up and down, the driving device is used to drive the second telescopic frame 8 and the measuring device to move up and down; the driving device comprises a servo motor 22, a first transmission member, a second transmission member and a threaded rod 13, the first transmission member is installed at the output end of the servo motor 22, the second transmission member is arranged on one side of the first transmission member, the first transmission member drives the second transmission member to intermittently rotate forward and reverse, so that the threaded rod 13 intermittently rotates forward and reverse, the threaded rod 13 is connected to the second telescopic frame 8, so that the second telescopic frame 8 is intermittently folded and unfolded, and the horizontal position of the measuring device is adjusted.

[0025] Two sets of first telescopic frames 2 are arranged between two columns 1, and the measuring frame is set outside the side to be measured of the box-type substation; the column 1 includes an upper column and a lower column, the upper column and the lower column are hingedly connected, and a positioning structure is installed on one side of the upper column and the lower column for positioning the upper column after the upper column is unfolded, and a limiting structure is arranged on one side of the upper column close to the hinge and one side of the lower column close to the hinge for limiting the upper column when the upper column is folded.

[0026] The positioning structure includes a positioning pin 35, a positioning spring 36, a pin block 37, a stop block 38 and a fixed block 39. The stop block 38 and the fixed block 39 are both fixed on the upper column, and the pin block 37 is fixed on the lower column. The positioning pin 35 passes through the fixed block 39 and the pin block 37 from top to bottom in sequence. The positioning pin 35 is installed on the fixed block 39 through the positioning spring 36. The positioning spring 36 is fixed between the upper end of the positioning pin 35 and the upper end of the fixed block 39. The stop block 38 is arranged above the fixed block 39 to limit the positioning pin 35 after it is lifted up.

[0027] The limiting structure includes a plug-in block 40, an insert rod 41, a limiting spring 42 and a pull plate 43. The plug-in block 40 is fixed on the upper column, the insert rod 41 is installed in the lower column, the pull plate 43 is fixed at one end of the insert rod 41 and is arranged on the outside of the lower column, the limiting spring 42 is sleeved and installed on the outside of the insert rod 41 and is fixed in the lower column, and a plug-in groove 44 compatible with the plug-in block 40 is opened on one side of the lower column near the hinge. When the column 1 is folded, the insert rod 41 extends horizontally to the plug-in block 40 inserted in the plug-in groove 44. The height of the plug-in groove 44 is slightly larger than the thickness of the plug-in block 40, so that the plug-in block 40 can be inserted into the plug-in groove 44 after rotation.

[0028] In this implementation, when the upper column and the lower column are in a folded state, the upper end of the positioning pin 35 is clamped with the stop block 38, and the positioning spring 36 is in a stretched state. At this time, the positioning pin 35 is separated from the pin block 37, and the upper column is folded and attached to one side of the lower column. At this time, the insertion block 40 is inserted into the insertion slot 44, the insertion rod 41 is inserted into the insertion block 40, and the limit spring 42 is in a natural state to limit the insertion rod 41, thereby realizing the limitation of the insertion block 40, so that the upper column and the lower column can be folded, which is convenient for the overall storage of the device.

[0029] The first telescopic frame 2 is a frame composed of multiple groups of cross-connected rods. One end of the first telescopic frame 2 is slidably connected with a guide post 3 on the lower rod body, and the other end of the first telescopic frame 2 is connected with a hydraulic rod 4 on the lower rod body; mounting grooves 5 are respectively opened on the relatively close sides of the two side columns 1, the guide post 3 is installed in the mounting groove 5 on the inner side of the same side column 1, and the hydraulic rod 4 is installed in the mounting groove 5 on the inner side of the other side column 1; a brake wheel is installed at the bottom of the column 1 to assist the column 1 in moving.

[0030] In this implementation, the hydraulic rod 4 is installed between the inner side of the column 1 and the end of the first telescopic frame 2 by screws. During measurement, one of the columns 1 is placed at one end of the surface to be measured, and the brake is applied through the brake wheel to make this column 1 immobile. The hydraulic rod 4 operates to push the first telescopic frame 2, so that the first telescopic frame 2 unfolds. The other end of the first telescopic frame 2 slides on the guide post 3, and the other column 1 is pushed to move under the action of the brake wheel at its bottom until it moves to the other end of the surface to be measured, so that the distance between the two columns 1 is adapted to the length of the surface to be measured, which can be flexibly adjusted to improve the adaptability of the device.

[0031] The measuring device further includes a measuring box 7 and a control device 25. The measuring box 7 is arranged at one end of the second telescopic frame 8, and the control device 25 is installed inside the measuring box 7; the second telescopic frame 8 is also a frame composed of multiple groups of cross-connected rods. One end of the frame is connected with a connecting block 11, and the other end of the frame is connected with a slider 24. A guide rod 10 is penetrated through the slider 24, and the guide rod 10 is fixed on the back of the measuring box 7.

[0032] In this implementation, the control device 25 is provided with a power supply, a processor, etc. to realize the operation of the measuring device. The threaded rod 13 rotates, and under the guiding action of the guide plate 12, the connecting block 11 moves up and down, thereby driving the second telescopic frame 8 to open or contract. The slider 24 moves on the guide rod 10 to achieve the purpose of horizontally reciprocating movement of the measuring box 7 and its internal structure for multi-point measurement of the surface to be measured of the box-type substation.

[0033] The first transmission member, the second transmission member and the outer cover of the threaded rod 13 are provided with an installation box 6, and the servo motor 22 is installed on the outer wall of the installation box 6 by screws; the first rotating member includes a fifth gear 21, a fourth gear 20 and a third gear 19, the fifth gear 21 is arranged at the output end of the servo motor 22, two third gears 19 are provided, and are symmetrically arranged up and down, the two third gears 19 are meshed and arranged above and below the fifth gear 21, and the fourth gear 20 is meshed and arranged on the side of the fifth gear 21 close to the column 1; the fourth gear 20 is fixedly provided with a sixth gear 23 at one end close to the column 1, the sixth gear 23 extends into the column 1, and the sixth gear 23 is meshed and connected with a toothed plate 26, which is fixed in the column 1, and a guide block 27 is fixedly provided on the side of the installation box 6 close to the column 1, and a connecting groove 28 adapted to the guide block 27 and the sixth gear 23 is opened on the column 1. In this embodiment, the tooth plate 26 has two sections, one end of which is mounted on the upper column, and the other end is mounted on the lower column, and the two sections of the tooth plate 26 can be combined into a complete tooth plate 26.

[0034] In this embodiment, the fifth gear 21, the fourth gear 20 and the third gear 19 are all bevel gears, and the radius of the fifth gear 21 is greater than the radius of the fourth gear 20 and the radius of the third gear 19. The third gear 19 is installed inside the installation box 6. The servo motor 22 drives the fifth gear 21 to rotate, and the fifth gear 21 drives the upper and lower third gears 19 and the fourth gear 20 on the side to rotate. The fourth gear 20 rotates, driving the sixth gear 23 to rotate, and through its meshing connection with the toothed plate 26, and the guide block 27 slides on the column 1, the installation box 6 and its internal structure and the second telescopic frame 8 and the measuring box 7 and its internal structure move up and down in the vertical direction, and the two third gears 19 rotate in opposite directions respectively to drive the second transmission member to operate.

[0035] The second transmission member includes a toggle member, a groove wheel 16, a second gear 15 and a first gear 14. The toggle member and the groove wheel 16 are respectively provided with two upper and lower ones. The upper and lower groove wheels 16 are coaxially symmetrically arranged, and the upper and lower toggle members are coaxially staggered. The toggle member includes a toggle wheel 17 and a toggle rod 18 eccentrically fixed to the top thereof. The toggle wheel 17 is fixed to the top of the third gear 19 above, and the toggle wheel 17 is a cam. The second gear 15 is fixed to the bottom of the upper groove wheel 16. The second gear 15 is a partial gear. The second gear 15 is intermittently meshed with the first gear 14. The first gear 14 is fixed The threaded rod 13 is connected to the upper end of the threaded rod 13; the threaded rod 13 passes through the connecting block 11 and is threadedly connected thereto; a guide plate 12 is provided on the connecting block 11, and the guide plate 12 is fixedly arranged on the side wall of the installation box 6; the connecting block 11 extends from the outside to the installation box 6; a U-shaped groove is provided in an annular array on the groove wheel 16; if the upper lever 18 is engaged with a U-shaped groove on the upper groove wheel 16 to rotate the second gear 15, then after the rotation, the lower lever 18 is engaged with an adjacent U-shaped groove on the lower groove wheel 16 to rotate the second gear 15 in the opposite direction, thereby realizing the intermittent forward and reverse rotation of the threaded rod 13.

[0036] In this embodiment, the groove wheel 16 and the threaded rod 13 are both installed inside the installation box 6. If the upper toggle wheel 17 drives the lever 18 to rotate, so that the upper lever 18 rotates and snaps into a U-shaped groove on the upper groove wheel 16, the upper groove wheel 16 is toggled to rotate, and the lower groove wheel 16 is driven to rotate. The upper groove wheel 16 rotates, driving the second gear 15 to rotate, gradually connecting with the first gear 14, and driving the first gear 14 to rotate, thereby driving the threaded rod 13 to rotate. Under the limit guidance of the guide plate 12, the connecting block 11 moves. Under the continuous rotation of the servo motor 22, During operation, the upper lever 18 gradually separates from the upper groove wheel 16. After separation, under the action of the third gear 19 below, the lower lever 18 engages with the U-shaped groove adjacent to the U-shaped groove at the same position on the lower groove wheel 16, and drives the lower groove wheel 16 to rotate in the opposite direction, driving the upper groove wheel 16 and the second gear 15 to rotate in the opposite direction, and meshing and connecting with the first gear 14, so that the threaded rod 13 rotates in the opposite direction, and the connecting block 11 moves in the opposite direction, so that the second telescopic frame 8 is retracted and expanded, thereby achieving the purpose of horizontally moving the measuring box 7 and its internal structure.

[0037] The laser distance measuring sensor 9 is embedded in the measuring box 7 on the side facing the box-type substation and is electrically connected to the control device 25 .

[0038] In this embodiment, as the measuring box 7 moves, the laser ranging sensor 9 detects the distance between it and the outer shell of the box-type substation, and detects and records it in real time for subsequent overall measurement results.

[0039] The mechanical distance measuring device includes a measuring ball 30, a cross bar 29, a connecting spring 31, a movable plate 32, a bracket 33 and a camera 34. The cross bar 29 runs through the measuring box 7, and is fixed on the measuring ball 30 at one end close to the box-type substation; the connecting spring 31 is sleeved on the outside of the middle section of the cross bar 29, and one end is fixed on the inner wall of the movable plate 32, and the other end is fixed on the inner wall of the bracket 33. The cross bar 29 runs through the bracket 33, and a scale line is provided on the cross bar 29. The movable plate 32 is in a horizontally placed L shape, and its shorter side is fixedly sleeved on the cross bar 29, and its longer side extends from the inside to the outside to the outside of the measuring box 7 away from the box-type substation; the camera 34 is arranged below the movable plate 32, and the camera 34 and the bracket 33 are both installed in the measuring box 7 by screws.

[0040] In this embodiment, the measuring ball 30 can rotate 360 ​​degrees so that when the measuring box 7 moves horizontally and vertically, the measuring ball 30 can move on the surface of the box-type substation shell. The setting of the connecting spring 31 allows the measuring ball 30 to remain in contact with the shell surface during the measurement process, thereby ensuring the accuracy of the measurement results.

[0041] During measurement, the movement of the measuring ball 30 drives the movable plate 32 to move horizontally. As the cross bar 29 moves, the numbers exposed on the cross bar 29 change. The camera 34 records the changed numbers on the cross bar 29 in real time to obtain the overall measurement result later.

[0042] When in use, one of the columns 1 is placed at one end of the surface to be measured, and the column 1 is immobilized by the brake wheel. The hydraulic rod 4 is operated to push the first telescopic frame 2 to expand the first telescopic frame 2. The other end of the first telescopic frame 2 slides on the guide column 3, pushing the other column 1 to move under the action of the brake wheel at its bottom, and move to the other end of the other surface to be measured, so that the distance between the two columns 1 is adapted to the length of the surface to be measured, and the pull plate 43 is pulled outward to move the insertion rod 41 outward, and the limit spring 42 is compressed. The plug rod 41 is retracted, and the plug block 40 is separated. The same operation is performed on the other side. The upper column is rotated to separate the plug block 40 from the plug slot 44. When the upper column cannot continue to rotate, the positioning pin 35 is pulled upward and rotated ninety degrees. After the rotation, the positioning pin 35 is released, and the positioning spring 36 is reset and retracted, so that the positioning pin 35 moves downward and is inserted into the pin block 37 on the lower column. The deployment of the upper column is completed, and the measuring ball 30 in the mechanical distance measuring device is attached to the surface of the box-type substation shell from the upper position of the column 1 or the lower position of the column 1, and it can be used.

[0043] The measuring box 7 is located at the starting position above the column 1, and the servo motor 22 drives the fifth gear 21 to rotate. The fifth gear 21 drives the upper and lower third gears 19 and the fourth gear 20 on the side to rotate. The fourth gear 20 rotates, driving the sixth gear 23 to rotate, and through its meshing connection with the toothed plate 26, and the guide block 27 slides on the column 1, the installation box 6 and its internal structure, the second telescopic frame 8, and the measuring box 7 and its internal structure move up and down in the vertical direction.

[0044] In this process, the two third gears 19 rotate in opposite directions respectively. If the upper toggle wheel 17 drives the toggle lever 18 to rotate, the upper toggle lever 18 rotates and snaps into a U-shaped groove on the upper groove wheel 16, the upper groove wheel 16 is toggled to rotate, and the lower groove wheel 16 is driven to rotate. The upper groove wheel 16 rotates, driving the second gear 15 to rotate, gradually connecting with the first gear 14, and driving the first gear 14 to rotate, thereby driving the threaded rod 13 to rotate. Under the limit guidance of the guide plate 12, the connecting block 11 moves. Under the continuous rotation of the servo motor 22 Under continuous operation, the upper lever 18 gradually separates from the upper groove wheel 16. After separation, under the action of the third gear 19 below, the lower lever 18 engages with the U-shaped groove adjacent to the U-shaped groove at the same position on the lower groove wheel 16, and drives the lower groove wheel 16 to rotate in the opposite direction, driving the upper groove wheel 16 and the second gear 15 to rotate in the opposite direction, meshing with the first gear 14, so that the threaded rod 13 rotates in the opposite direction, and the connecting block 11 moves in the opposite direction, so that the second telescopic frame 8 is contracted and expanded, and the measuring box 7 and its internal structure are moved horizontally.

[0045] By moving the measuring box 7 and its internal structure horizontally and vertically, during the movement, the measuring box 7 drives the measuring ball 30 to move on the surface of the outer shell of the box-type substation. When the surface of the box-type substation is deformed, the measuring ball 30 moves horizontally, driving the cross bar 29 to move horizontally, squeezing or stretching the connecting spring 31. At the same time, the numbers exposed on the cross bar 29 change. The camera 34 records the changed numbers on the cross bar 29 in real time to obtain the overall measurement results later. At the same time, the laser ranging sensor 9 also performs ranging. The measurement results can be obtained by combining the two measurement methods.

[0046] Laser measurement is greatly affected by the measurement environment, while mechanical measurement has poor measurement accuracy. Combining the two measurement methods can ensure higher measurement accuracy.

[0047] A method for measuring deformation of box-type substation, referring to Fig.13 , including the following steps: obtaining the measurement area parameters stored in the data repository, analyzing to obtain the coverage rate of the surface to be measured, and judging whether supplementary scanning is needed based on the coverage rate of the surface to be measured.

[0048] The calculation formula for the coverage of the surface to be measured is: ; Where: is the measured area, is the total area of ​​the surface to be measured, and C is the coverage rate of the surface to be measured; the coverage rate of the surface to be measured is compared with the coverage rate threshold of the surface to be measured. If the coverage rate of the surface to be measured is less than the coverage rate threshold of the surface to be measured, supplementary scanning is required; if the coverage rate of the surface to be measured is not less than the coverage rate threshold of the surface to be measured, supplementary scanning is not required.

[0049] Calculate the coverage rate and compare it with the threshold to identify which areas have completed effective measurement and avoid repeated measurement in the measured areas. If the coverage rate reaches or exceeds the threshold, no additional measurement is required, saving time and resources. When the coverage rate does not reach the threshold, the unmeasured or insufficiently measured areas can be accurately located and re-scanned to improve measurement efficiency and ensure comprehensiveness of the measurement.

[0050] The laser distance measurement data stored in the data repository is obtained, and the laser measurement value is obtained by analysis. The mechanical distance measurement data stored in the data repository is obtained, and the mechanical measurement value is obtained by analysis. The comprehensive deformation amount is combined with the laser measurement value, and based on the obtained comprehensive deformation amount, it is determined whether processing is required.

[0051] The calculation formula of laser measurement value is: ; Where: is the laser measurement value, c is the speed of light, and t is the time it takes for the laser to be emitted from the sensor and received.

[0052] The mechanical measurement value is calculated as: ; Where: is the end point value of the scale line, is the starting value of the scale line, Mechanical measurement value.

[0053] The calculation formula of comprehensive deformation is: ; Where: is the total deformation of the ith measuring point, is the laser measurement value of the ith measurement point, is the mechanical measurement value of the ith measurement point, for The weight factor of for The weight factor of is the comprehensive deformation, i is the measurement point number, and n is the number of measurement points.

[0054] The above setting , It is obtained from the data repository and is calculated based on historical data. , as well as ,Establish , and its corresponding weight factor mapping set, get the current , .

[0055] The comprehensive deformation variable is compared with the deformation variable threshold corresponding to the corresponding surface of the corresponding box-type substation stored in the data repository. If the comprehensive deformation variable is less than the deformation variable threshold, no processing is required; if the comprehensive deformation variable is not less than the deformation variable threshold, processing is required.

[0056] Laser ranging uses the speed of light and light propagation time to calculate distance. It has high accuracy and fast response, but is easily affected by ambient light and occlusion. Mechanical ranging uses scale changes to measure, has good stability, and can work in complex environments, but has relatively limited accuracy. Combining the two to calculate the comprehensive deformation variable can achieve complementary advantages.

[0057] At the box-type substation site, if laser measurement deviates due to strong light interference, mechanical measurement can provide relatively stable data; conversely, the accuracy shortcomings of mechanical measurement can be compensated by laser measurement, thereby obtaining more accurate deformation data, more accurately reflecting the actual deformation of the box-type substation, and reducing environmental impacts.

[0058] In this step, the deformation variable threshold is matched with the deformation variable threshold corresponding to the number of measurement points from the data storage library according to the number of measurement points. By comparing the comprehensive deformation variable with the corresponding deformation variable threshold, it is timely judged whether there are safety hazards in the equipment, and timely measures can be taken, such as maintenance, reinforcement or replacement of parts, to avoid further deterioration of equipment failure, ensure the stability and safety of power supply, and reduce power outages and economic losses caused by equipment failure.

[0059] If no processing is required, an ARIMA model is constructed to obtain the predicted value of the deformation variable, and the scanning measurement frequency is determined based on the predicted value of the deformation variable.

[0060] Extract the stored comprehensive shape variable data from the data repository and construct a time series data set; check whether there are missing values ​​and outliers in the data set and perform data cleaning; use the unit root test to test the stationarity of the time series data set to obtain a stationary series; based on the stationary series, use the autocorrelation function and partial autocorrelation function to determine the order of the ARIMA model; based on the determined order of the ARIMA model, construct the ARIMA model and use the training data set to train the ARIMA model.

[0061] The ARIMA model equation is: ; Where: is the value of the time series at time tg, is the random error of the time series at time tg, L is the lag operator, p is the autoregressive order, d is the difference order, q is the moving average order, is the autoregression coefficient, is the sliding average coefficient, m is the order number, is the d-order difference.

[0062] The predicted value of the shape variable is obtained based on the ARIMA model equation, and the predicted value of the shape variable is compared with the maximum threshold of the shape variable stored in the data repository. If the predicted value of the shape variable is greater than the maximum threshold of the shape variable, the scanning measurement frequency is increased; if the predicted value of the shape variable is not greater than the maximum threshold of the shape variable, the predicted value of the shape variable is compared with the minimum threshold of the shape variable stored in the data repository. If the predicted value of the shape variable is greater than the minimum threshold of the shape variable, the scanning measurement frequency remains unchanged; if the predicted value of the shape variable is not greater than the minimum threshold of the shape variable, the scanning measurement frequency is reduced.

[0063] In the process of building the ARIMA model, the input data (i.e., historical deformation variable measurement data) is preprocessed (including data cleaning, stationarity test, and determination of the ARIMA model order) to ensure the quality of the data and the effectiveness of the model.

[0064] In the process of data cleaning, missing values ​​can be filled by interpolation methods such as linear interpolation and spline interpolation. If there are outliers, they can be identified and processed based on statistical rules or machine learning algorithms according to the distribution characteristics of the data, and outliers can be replaced with reasonable values ​​to ensure data quality.

[0065] Use the unit root test to test the stability of the time series data set (i.e., historical shape variable measurement data). The null hypothesis is that the time series data has a unit root, that is, it is non-stationary; the alternative hypothesis is that the time series data does not have a unit root and the data is stationary. If the p-value of the test result is less than the given significance level, the null hypothesis is rejected and the data is considered to be stationary; otherwise, the data needs to be differentiated. Assume that the data becomes a stationary series after d times of differentiation.

[0066] According to the stabilized data (that is, the data after the non-stationary time series is converted into a stationary time series through the difference operation mentioned above), the stabilized data is used to calculate the autocorrelation function (ACF) and partial autocorrelation function (PACF), and the ACF and PACF graphs are obtained. Observe after which lag order the ACF graph approaches 0 rapidly. This lag order q is the sliding average order. Observe after which lag order the PACF graph approaches 0 rapidly. This lag order p is the autoregressive order.

[0067] Using historical deformation data (input data) as the training data set, the model parameters are estimated by maximum likelihood ( and ), substitute the estimated parameters into the ARIMA model equation, fit the historical data, calculate the goodness of fit of the model, use part of the historical data as a validation set, and evaluate the prediction performance of the model. After the model training is completed, the most recent shape variable measurement value is input as input data into the trained ARIMA model, and the shape variable prediction value (output data) at the future time point is calculated in combination with the model parameters.

[0068] By building an ARIMA model to predict the deformation variable and comparing the predicted value with the threshold to adjust the scanning measurement frequency, the safety status of the box-type substation can be effectively monitored, which helps to discover potential problems in advance and achieve preventive maintenance. Once the deformation variable exceeds the maximum threshold, it means that the equipment will face a greater safety risk. At this time, increasing the scanning measurement frequency can capture the deformation variable changes in time, so that measures can be taken quickly to avoid failures caused by excessive equipment deformation and reduce losses caused by equipment failures.

[0069] The scanning measurement frequency is dynamically adjusted according to the predicted value of the deformation variable, avoiding unnecessary waste of resources. When the predicted value of the deformation variable is within the safe range and below the minimum threshold, the scanning measurement frequency is appropriately reduced, reducing the consumption of manpower, material resources and time.

[0070] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0071] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A box-type substation deformation measurement device, characterized in that: include: A measuring frame, the measuring frame comprising two foldable columns (1) arranged side by side and two sets of first telescopic frames (2) arranged side by side; Two sets of measuring devices, the measuring devices comprising a laser distance measuring sensor (9) and a mechanical distance measuring device, used for synchronously performing deformation laser measurement and deformation mechanical measurement on the outer surface of the box-type substation; Two sets of driving devices, wherein a second telescopic frame (8) is provided on the back of the driving device, and the other end of the second telescopic frame (8) is connected to the measuring device on the same side, and the driving device is arranged on the column (1) and is slidably connected to the column (1) up and down, and is used to drive the second telescopic frame (8) and the measuring device to move up and down; The driving device comprises a servo motor (22), a first transmission member, a second transmission member and a threaded rod (13); the first transmission member is mounted on the output end of the servo motor (22); the second transmission member is arranged on one side of the first transmission member; the first transmission member drives the second transmission member to intermittently rotate forward and reversely, so that the threaded rod (13) intermittently rotates forward and reversely; the threaded rod (13) is connected to the second telescopic frame (8), so that the second telescopic frame (8) is intermittently folded and unfolded, so as to adjust the horizontal position of the measuring device.

2. A box-type substation deformation measurement device according to claim 1, characterized in that: Two sets of the first telescopic frames (2) are arranged between two upright posts (1), and the measuring frames are arranged outside a side to be measured in the box-type substation; The upright column (1) comprises an upper column and a lower column, the upper column and the lower column are hingedly connected, a positioning structure is installed on one side of the upper column and the lower column, and is used to position the upper column after the upper column is unfolded, and a limiting structure is provided on one side of the upper column close to the hinge and one side of the lower column close to the hinge, and is used to limit the upper column when the upper column is folded.

3. A box-type substation deformation measurement device according to claim 2, characterized in that: The positioning structure comprises a positioning pin (35), a positioning spring (36), a pin block (37), a stop block (38) and a fixed block (39); the stop block (38) and the fixed block (39) are both fixedly mounted on the upper column; the pin block (37) is fixedly mounted on the lower column; the positioning pin (35) passes through the fixed block (39) and the pin block (37) in sequence from top to bottom; the positioning pin (35) is mounted on the fixed block (39) via the positioning spring (36); the positioning spring (36) is fixedly mounted between the inner side of the upper end of the positioning pin (35) and the upper end of the fixed block (39); the stop block (38) is arranged above the fixed block (39) and is used to limit the positioning pin (35) after it is lifted up; The limiting structure comprises a plug-in block (40), an insert rod (41), a limiting spring (42) and a pull plate (43); the plug-in block (40) is fixedly mounted on the upper column; the insert rod (41) is installed in the lower column; the pull plate (43) is fixedly mounted on one end of the insert rod (41) and is arranged outside the lower column; the limiting spring (42) is sleeved and installed outside the insert rod (41) and is fixed in the lower column; a plug-in slot (44) adapted to the plug-in block (40) is provided on one side of the lower column near the hinge; when the column (1) is folded, the insert rod (41) extends horizontally to the plug-in block (40) plugged into the plug-in slot (44).

4. A box-type substation deformation measurement device according to claim 1, characterized in that: The first telescopic frame (2) is a frame body composed of a plurality of cross-connected rod bodies, the rod body at one end of the first telescopic frame (2) being located at the bottom is slidably connected to a guide column (3), and the rod body at the other end of the first telescopic frame (2) being located at the bottom is connected to a hydraulic rod (4); The columns (1) on both sides are provided with mounting grooves (5) on one side relatively close to the other, the guide column (3) is installed in the mounting groove (5) on the inner side of the column (1) on the same side, and the hydraulic rod (4) is installed in the mounting groove (5) on the inner side of the column (1) on the other side; A brake wheel is installed at the bottom of the column (1) to assist the column (1) in moving; The measuring device further comprises a measuring box (7) and a control device (25), wherein the measuring box (7) is arranged at one end of the second telescopic frame (8), and the control device (25) is installed inside the measuring box (7); The second telescopic frame (8) is also a frame body composed of a plurality of groups of cross-connected rod bodies, one end of the frame body is connected to a connecting block (11), and the other end of the frame body is connected to a sliding block (24), and the sliding block (24) is connected to a guide rod (10) passing through the guide rod (10), and the guide rod (10) is fixedly arranged on the back of the measuring box (7).

5. The deformation measurement device for a box-type substation according to claim 1 is characterized in that: The first transmission member, the second transmission member and the threaded rod (13) are covered externally with a mounting box (6), and the servo motor (22) is mounted on the outer wall of the mounting box (6) by means of screws; The first rotating member comprises a fifth gear (21), a fourth gear (20) and a third gear (19), the fifth gear (21) being arranged at the output end of the servo motor (22), two third gears (19) being arranged symmetrically up and down, the two third gears (19) being arranged in meshing engagement above and below the fifth gear (21), and the fourth gear (20) being arranged in meshing engagement engagement at a side of the fifth gear (21) close to the column (1); A sixth gear (23) is fixedly provided at one end of the fourth gear (20) close to the column (1), the sixth gear (23) extends into the column (1), the sixth gear (23) is meshingly connected with a toothed plate (26), the toothed plate (26) is fixedly provided in the column (1), a guide block (27) is fixedly provided at one side of the mounting box (6) close to the column (1), and a connecting groove (28) adapted to the guide block (27) and the sixth gear (23) is provided on the column (1).

6. A box-type substation deformation measurement device according to claim 5, characterized in that: The second transmission member comprises a toggle member, a groove wheel (16), a second gear (15) and a first gear (14); the toggle member and the groove wheel (16) are respectively provided with two upper and lower ones, the upper and lower groove wheels (16) are coaxially symmetrically arranged, and the upper and lower toggle members are coaxially staggered; The toggle member comprises a toggle wheel (17) and a toggle rod (18) eccentrically fixed to the top of the toggle wheel (17), the toggle wheel (17) being fixed to the top of the third gear (19) above, and the toggle wheel (17) being a cam; The second gear (15) is fixedly mounted on the bottom of the upper groove wheel (16); the second gear (15) is a partial gear; the second gear (15) is intermittently meshed with the first gear (14); the first gear (14) is fixedly mounted on the upper end of the threaded rod (13); The threaded rod (13) passes through the connection block (11) and is threadedly connected thereto; a guide plate (12) is provided through the connection block (11); the guide plate (12) is fixedly mounted on a side wall of the installation box (6); and the connection block (11) extends from the outside into the installation box (6); The groove wheel (16) is provided with a U-shaped groove in an annular array. If the upper lever (18) engages with a U-shaped groove on the upper groove wheel (16) to rotate the second gear (15), then after the rotation, the lower lever (18) engages with an adjacent U-shaped groove on the lower groove wheel (16) to rotate the second gear (15) in the opposite direction, thereby achieving intermittent forward and reverse rotation of the threaded rod (13).

7. A box-type substation deformation measurement device according to claim 1, characterized in that: The laser distance measuring sensor (9) is embedded in the measuring box (7) on the side facing the box-type substation and is electrically connected to the control device (25); The mechanical distance measuring device comprises a measuring ball (30), a crossbar (29), a connecting spring (31), a movable plate (32), a bracket (33) and a camera (34); the crossbar (29) penetrates the measuring box (7) and is fixed on the measuring ball (30) at one end close to the box-type substation; The connecting spring (31) is sleeved on the outside of the middle section of the crossbar (29), and one end is fixedly mounted on the inner wall of the movable plate (32), and the other end is fixedly mounted on the inner wall of the bracket (33). The crossbar (29) passes through the bracket (33), and a scale line is provided on the crossbar (29). The movable plate (32) is in a horizontally placed L-shape, and its shorter side is fixedly sleeved on the crossbar (29), and its longer side extends from the inside to the outside to the outside of the measuring box (7) away from the box-type substation. The camera (34) is arranged below the movable plate (32), and the camera (34) and the bracket (33) are both installed in the measuring box (7) by means of screws.

8. A method for measuring deformation of a box-type substation according to any one of claims 1 to 7, characterized in that: The following steps are involved: Obtain the measurement area parameters stored in the data repository, analyze and obtain the coverage rate of the surface to be measured, and determine whether additional scanning is required based on the coverage rate of the surface to be measured; Acquire laser ranging data stored in a data repository and analyze to obtain laser measurement values; Obtain the mechanical distance measurement data stored in the data repository, analyze and obtain the mechanical measurement value, combine with the laser measurement value, analyze and obtain the comprehensive deformation amount, and determine whether processing is required based on the obtained comprehensive deformation amount; If no processing is required, an ARIMA model is constructed to obtain the predicted value of the deformation variable, and the scanning measurement frequency is determined based on the predicted value of the deformation variable.

9. The measuring method according to claim 8, characterized in that: Based on the coverage of the surface to be measured, it is determined whether additional scanning is required, which specifically includes the following steps: The calculation formula for the coverage of the surface to be measured is: ； Where: is the area of ​​the measured region, is the total area of ​​the surface to be measured, and C is the coverage of the surface to be measured; Compare the coverage rate of the surface to be measured with the coverage rate threshold of the surface to be measured. If the coverage rate of the surface to be measured is less than the coverage rate threshold of the surface to be measured, supplementary scanning is required; If the coverage rate of the surface to be measured is not less than the coverage rate threshold of the surface to be measured, no additional scanning is required; Based on the obtained comprehensive deformation, it is determined whether processing is required, which specifically includes the following steps: The calculation formula of comprehensive deformation is: ； Where: is the total deformation of the ith measuring point, is the laser measurement value of the ith measurement point, is the mechanical measurement value of the i-th measurement point, for The weight factor of for The weight factor of is the comprehensive deformation, i is the measurement point number, and n is the number of measurement points; Compare the comprehensive deformation variable with the deformation variable threshold corresponding to the corresponding surface of the corresponding box-type substation stored in the data repository. If the comprehensive deformation variable is less than the deformation variable threshold, no processing is required; If the comprehensive deformation variable is not less than the deformation variable threshold, processing is required.

10. A method for measuring deformation of a box-type substation according to claim 8, characterized in that: According to the predicted value of the deformation variable, the scanning measurement frequency is determined, which specifically includes the following steps: Extracting the stored comprehensive shape variable data from the data repository and constructing a time series dataset; Check whether there are missing values ​​or outliers in the data set and perform data cleaning; Use the unit root test to test the stationarity of the time series data set and obtain a stationary series; Based on the stationary sequence after stationarization, the order of the ARIMA model is determined using the autocorrelation function and partial autocorrelation function; Based on the determined order of the ARIMA model, an ARIMA model is constructed, and the ARIMA model is trained using a training data set; The ARIMA model equation is: ； Where: is the value of the time series at time tg, is the random error of the time series at time tg, L is the lag operator, p is the autoregressive order, d is the difference order, q is the moving average order, is the autoregression coefficient, is the sliding average coefficient, m is the order number, is the d-order difference; A predicted value of the deformation variable is obtained based on the ARIMA model equation, and the predicted value of the deformation variable is compared with the maximum threshold of the deformation variable stored in the data repository. If the predicted value of the deformation variable is greater than the maximum threshold of the deformation variable, the scanning measurement frequency is increased; If the predicted value of the deformation variable is not greater than the maximum threshold value of the deformation variable, the predicted value of the deformation variable is compared with the minimum threshold value of the deformation variable stored in the data repository. If the predicted value of the deformation variable is greater than the minimum threshold value of the deformation variable, the scanning measurement frequency remains unchanged. If the predicted value of the deformation variable is not greater than the minimum threshold of the deformation variable, the scanning measurement frequency is reduced.

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