Diagnostic methods, diagnostic systems, programs, and presentation devices

Abstract

This method for presenting diagnostic information includes a diagnostic information generation step, which involves acquiring diagnostic surface data indicating the state of the diagnostic surface of the component to be diagnosed, and generating diagnostic information that includes abnormal location information representing the abnormal locations on the diagnostic surface determined based on the diagnostic surface data; and a presentation step, which involves presenting the diagnostic information generated in the diagnostic information generation step to an information presentation unit. This diagnoses defects in the component and presents the diagnostic information, such as the diagnosis results, in a visual and intuitive manner.

Description

Technical Field

[0001] The present disclosure is used for diagnosis, for example, of a flange fastener that seals between pipelines through which a fluid flows , examination diagnosis method, diagnosis system, program and presentation device Place and related thereto.

Background Art

[0002] Conventionally, regarding the aging deterioration of a flange fastener, according to Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2024 - 44482), acquiring three - dimensional data from a seal surface and determining whether repair of the seal surface is necessary based on defect detection or strain measurement in an evaluation target area, etc. have been disclosed.

[0003] According to Patent Document 2 (Japanese Unexamined Patent Application Publication No. 2004 - 294395), an inspection work execution method in which an inspection target pre - processing program is provided through a network and inspection results are transmitted to a client has been disclosed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] <000003I3>However, Patent Document 1 and Patent Document 2 do not disclose visually and sensually presenting defects of parts such as flanges to users.

[0006] Therefore, an object of the present invention is to diagnose defects of parts and visually and sensually present diagnostic information such as the diagnostic results.

Means for Solving the Problems

[0013] To achieve the above objective, according to one aspect of the disclosed diagnostic method, a diagnostic method that diagnoses using computer information processing, wherein the processing unit performs the diagnostic process of the subject of diagnosis. Using 3D data representing the shape and reference data representing predetermined standards, the diagnostic surface and The aforementioned base Jun and Based on the difference 、 The abnormal area on the diagnostic surface Generate diagnostic information including information about the abnormal location. do Generate The process and the information display unit are The aforementioned diagnostic information Present ru The process shown includes Furthermore, in the generation step, the processing unit generates abnormal location information representing areas with strain or distortion as abnormal locations based on the first difference, which is the difference between the first standard, which is the standard, and the diagnostic surface, and generates abnormal location information representing areas with scratches or deposits as abnormal locations based on the second difference, which is the difference between the second standard, which is the standard, and the diagnostic surface, wherein the first standard is set based on the diagnostic surface when the object to be diagnosed is unused, or when the object to be diagnosed has been repaired, and the second standard is set based on the diagnostic surface having strain or distortion.

[0014] In this diagnostic method, further, In the generation process, the abnormal location information is , the aforementioned abnormal location of Depending on the level of abnormality Generates a color state image with a color scheme based on hue, lightness, or saturation. death, In the presentation step, the diagnostic information, including the color state image and a color scale representing the criteria for the abnormal level relative to the color scheme of the color state image, is presented to the diagnostic presentation unit. You may do so. In this diagnostic method, further, In the presentation step, the diagnostic information, including the color state image and message information indicating the abnormal area, may be presented to the diagnostic presentation unit.

[0015] In this diagnostic method, the object to be diagnosed is the flange, the object to be diagnosed is the flange, and the diagnostic surface is the flange surface. The color scheme is color-coded within a range of ±0.01 mm to ±0.2 mm, and in the presentation step, the diagnostic information, which further includes contour line data representing the contour line at a specific radial angle of the flange surface or the contour line in the circumferential direction of the flange surface, is presented to the information presentation unit. You may do so.

[0016] To achieve the above objective, according to one aspect of the diagnostic system of this disclosure, the state of the diagnostic surface of the component to be diagnosed is Using the 3D data representing the diagnostic surface and the reference data representing a predetermined standard, the difference between the diagnostic surface and the standard is calculated. Based 、 The system includes a diagnostic information generation unit that generates diagnostic information including abnormal location information representing abnormal locations on the diagnostic surface, and an information presentation unit that presents the diagnostic information generated by the diagnostic information generation unit. Furthermore, the diagnostic information generation unit generates abnormal location information representing areas with strain or distortion as abnormal locations based on the first difference, which is the difference between the first standard, which is the standard, and the diagnostic surface, and generates abnormal location information representing areas with scratches or deposits as abnormal locations based on the second difference, which is the difference between the second standard, which is the standard, and the diagnostic surface, the first standard is set based on the diagnostic surface when the object to be diagnosed is unused, or when the object to be diagnosed has been repaired, and the second standard is set based on the diagnostic surface having strain or distortion.

[0017] To achieve the above objective, according to one aspect of the program of this disclosure, the diagnostic surface of the component to be diagnosed Using 3D data representing the shape and reference data representing the reference shape, the difference between the diagnostic surface and the reference is calculated. Based 、 This generates diagnostic information that includes abnormal location information representing the abnormal areas on the diagnostic surface. Generate The computer implements the function of displaying the diagnostic information on the information display unit. In the generation function, abnormal location information is generated based on the first difference between the first standard, which is the criterion, and the diagnostic surface, which is the difference, and abnormal location information is generated based on the second difference between the second standard, which is the criterion, and the diagnostic surface, which is the difference, which is the difference, and the first standard is set based on the shape of the diagnostic surface when the diagnostic object is unused, or when the diagnostic object has been repaired, and the second standard is set based on the diagnostic surface that has the strain or distortion. ru.

[0018] According to one aspect of the presenting device of the present disclosure, in order to achieve the above object, it is in cooperation with a diagnosis system that generates diagnosis information including abnormal location information indicating locations representing the state of the diagnosis surface of a part to be diagnosed, and is a presenting device that presents the diagnosis information, and includes a data input unit to which the diagnosis information is input from the diagnosis system, and an information presenting unit that presents the diagnosis information. Using 3D data and reference data representing predetermined standards, based on a first difference which is the difference between the diagnostic surface and a first standard set based on the diagnostic surface when the diagnostic object is unused or when the diagnostic object is repaired, abnormal location information representing strained or distorted areas on the diagnostic surface is generated, and based on a second difference which is the difference between the diagnostic surface and a second standard set based on the diagnostic surface with strain or distortion, scratches or deposits on the diagnostic surface are generated.

Advantages of the Invention

[0020] According to the present disclosure, the following effects can be obtained.

[0021] (1) It is possible to diagnose problems such as deterioration of parts and visually and sensually present diagnosis information such as the diagnosis results.

[0022] (2) It is possible to present the diagnosis surface of the part and the abnormal location information included in the diagnosis data, and enable a user such as an operator to easily and visually and sensually recognize the abnormal location information together with the diagnosis surface of the part.

[0023] And other objects, features, and advantages of the present disclosure will become clearer by referring to the accompanying drawings and each embodiment. <096>

Brief Description of the Drawings

[0024] [Figure 1] A in FIG. 1 is a perspective view showing a flange fastening body, and B in FIG. 1 is a plan view showing a flange surface. [Figure 2] FIG. 2 is a diagram showing a diagnosis system according to the first embodiment. [Figure 3] FIG. 3 is a block diagram showing an example of the hardware of the diagnosis system. [Figure 4] FIG. 4 is a diagram showing a diagnosis database. [Figure 5] A in FIG. 5 is a diagram showing an example of a flange chart, and B in FIG. 5 is a diagram showing an equipment information table. [Figure 6]Figure 6 shows a table of measurement results. [Figure 7] Figure 7A shows the flange scratch / deposit results table, and Figure 7B shows the radial strain table. [Figure 8] Figure 8A shows a circumferential strain table, and Figure 8B shows a flange rotation table. [Figure 9] Figure 9A is a diagram illustrating the generation of contour line data, and Figure 9B is a diagram showing a modified example of the flange scratch / adhesion result table. [Figure 10] Figure 10 shows the diagnostic processing sequence according to the first embodiment. [Figure 11] Figure 11A is a perspective view showing the flange fastener, and Figure 11B is a plan view showing the flange surface. [Figure 12] Figure 12 is an illustrative diagram illustrating the difference between the diagnostic and reference surfaces. [Figure 13] Figure 13 is an illustrative diagram illustrating a method for identifying damage on a distorted flange surface. [Figure 14] Figure 14A shows a first example of setting the reference surface of the recess, and Figure 14B shows a second example of setting the reference surface of the recess. [Figure 15] Figure 15 shows the diagnostic database. [Figure 16] Figure 16 shows a table of measurement results. [Figure 17] Figure 17A shows the flange scratch / deposit results table, and Figure 17B shows the radial strain table. [Figure 18] Figure 18A is a diagram illustrating the acquisition of contour line data, and Figure 18B is a diagram showing a modified example of the flange scratch / adhesion result table. [Figure 19] Figure 19 is a flowchart showing the diagnostic processing procedure by the diagnostic system according to the third embodiment. [Figure 20] Figure 20 shows a diagnostic system according to the fourth embodiment. [Figure 21]Figure 21A shows contour line information representing an abnormal area in the diagnostic system according to the fourth embodiment, and Figure 21B shows contour information and depth information representing an abnormal area. [Figure 22] Figure 22 illustrates the approximation curve and rotation angle. [Modes for carrying out the invention]

[0025] [First Embodiment] A in Figure 1 shows a flange fastener 2. This flange fastener 2 is, for example, a connection between pipelines in a plant and functions as a sealing part between pipelines. In this flange fastener 2, flange 6-1 is installed at the end of pipeline 4-1 and flange 6-2 is installed at the end of pipeline 4-2, and a gasket 10 is installed between the sealing surfaces 8 of flanges 6-1 and 6-2. The gasket 10 is an example of a sealing material that seals between the sealing surfaces 8 of flanges 6-1 and 6-2.

[0026] Each flange 6-1 and 6-2 has a bolt fastening section 12 (Figure 1B) on the outer circumference of the sealing surface 8 (Figure 1B) on the flange surface 7. Multiple bolt through holes 14 (Figure 1B) are formed in this bolt fastening section 12 at equal angular intervals, and the flanges 6-1 and 6-2 are connected by tightening nuts 18 onto each bolt 16 that passes through the bolt through holes 14, aligned in position. The tightening axial force F of each bolt 16 becomes the surface pressure (=seal pressure) applied from the sealing surface 8 of flanges 6-1 and 6-2 to the gasket 10. Therefore, leakage of fluid passing through the flange fastening body 2 can be prevented. Fluids include liquids, gases, powders, granules, and other flowable substances.

[0027] As this fluid passes through, the flange fastener 2 is subjected to multiple loads such as pressure, heat, and vibration, and also deteriorates over time due to overtightening or uneven tightening during installation. This deterioration causes abnormalities in the flanges 6-1, 6-2 and the sealing surface 8, and examples of these abnormalities include scratches, deposits, radial strain, circumferential strain, and flange rotation. Flange rotation is a distortion (deformation) such as curvature of the flanges 6-1, 6-2 and the sealing surface 8. In other words, the abnormal areas are the areas on the flange surface 7, which is the diagnostic surface, where deposits are present. Such deterioration over time is said to cause a decrease in the range, area, and sealing pressure of the sealing surface 8 and the gasket 10, and ultimately leads to leakage from the flange fastener 2.

[0028] <Target for diagnosis> Figure 1B shows the flange surface 7 of flange 6-1 (6-2). This flange surface 7 includes a bolt fastening portion 12 on its outer circumference and a sealing surface 8 on its inner circumference. The flange fastening body 2 is an example of a component in a plant that uses pipelines 4-1 and 4-2, and the sealing surface 8 is an example of a diagnostic surface that is the target of diagnosis for this component. This diagnostic surface may not be limited to the sealing surface 8, but may be the entire flange surface 7 including the bolt fastening portion 12.

[0029] The sealing surface 8 illustrated in Figure 1B has several deposit areas 20a, 20b, 20c, 20d, 20e, and 20f as examples of abnormal areas caused by aging. Although not shown, there is radial strain, circumferential strain, and directional strain perpendicular to the flange surface 7 (or sealing surface 8) of the flange 6-1. The deposits are convex parts of the sealing surface 8, while scratches on the sealing surface 8 are, for example, concave parts. In Figure 1B, the grid lines 22, along with the angles 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°, are imaginary lines added to identify the position on the surface of the sealing surface 8. The angles shown are examples and are not limited to 45° intervals. If the diameters of flanges 6-1 and 6-2 are large, angle intervals of 45° or less can be set to refine the inspection range.

[0030] <Diagnosis and presentation of diagnostic information> According to this first embodiment, as an example of diagnostic timing, during maintenance of the flange fastener 2 which is performed periodically or irregularly, the sealing surface 8 is mainly diagnosed, and a flange report 66 (A in Figure 5), which is an example of diagnostic information representing the diagnosis result, is generated, and this flange report 66 is displayed on, for example, the information display unit 34 (Figure 2) of the terminal device 28. The diagnosis of the sealing surface 8 includes the steps of acquiring difference data representing the difference between diagnostic surface data (e.g., 3D data) acquired from the sealing surface 8 and reference data (e.g., 3D data), and generating diagnostic information including abnormal location information representing abnormal locations where the difference exceeds a threshold. Reference data is, for example, data showing the shape of a normal part. Reference data is, for example, data showing the shape of a part in its state before deterioration. Reference data is, for example, 3D data of a new part, 3D data of a part used in the design of the part, 3D data of a simulated new part, or 3D data of a repaired part. The reference data may be diagnostic surface data with a proper sealing surface 8, and may be diagnostic surface data showing the flange surface 7 before deterioration, or diagnostic surface data showing the flange surface 7 after repair of the abnormal area. The reference data is the surface of the part that shows the shape, and the surface that is compared with the diagnostic surface of the diagnostic surface data is the reference surface. The reference surface is, for example, the flange surface 7 that shows the shape of the reference data. The reference surface is not limited to this and should be set so as to allow for appropriate diagnosis of part deterioration. The reference surface may be, for example, something that has been converted to CAD from drawing information, something that has been 3D measured from a new part, or something in which the sealing surface 8 has been set perpendicular to a cylindrical axis consisting of the inner or outer diameter of flange 6-1 (6-2). The reference surface intersects perpendicularly with the cylindrical axis. The difference data shows the difference between the reference surface and the diagnostic surface of the diagnostic surface data in a direction perpendicular to the reference surface. The difference data shows, for example, the difference between the reference surface and the diagnostic surface of the diagnostic surface data in the direction in which fluid flows through the pipe 4-2.

[0031] Furthermore, the diagnosis of the flange surface 7 including the sealing surface 8 as disclosed herein is not limited to the diagnosis of abnormalities in the part, but may also be used for monitoring the condition of parts such as flanges during repair processes of the sealing surface 8, such as polishing or cutting the flange surface 7.

[0032] The process of diagnosing this sealing surface 8 and presenting the flange report 66 includes the following information.

[0033] a) Colored image and text display showing the flange surface 7 in different colors. b) Location, length, and depth of scratches on sealing surface 8 c) Position, length, and height of the deposits on the sealing surface 8 d) Outline representation showing radial strain of the sealing surface 8 e) Outline display showing circumferential strain of the sealing surface 8 f) Flange rotation indicator g) Judgment results regarding scratches and deposits on the sealing surface 8 h) Display of the judgment results regarding radial strain, circumferential strain, and flange rotation of the sealing surface 8.

[0034] <Diagnostic system 24 and diagnostic method> Figure 2 shows a diagnostic system 24 according to the first embodiment. This diagnostic system 24 includes a 3D (three-dimensional) scanner 26, a terminal device 28, and a server 32.

[0035] The 3D scanner 26 is, for example, a handheld, non-contact 3D scanner and is an example of a three-dimensional measuring machine for acquiring 3D data. The bolts 16 and nuts 18 are removed to separate the flange fastener 2 into flanges 6-1, 6-2 and gasket 10. After cleaning the sealing surface 8 to be diagnosed, the 3D scanner 26 is used to acquire diagnostic surface data from the sealing surface 8 on the flange surface 7, including the sealing surface 8. The 3D scanner 26 can be any type that can acquire three-dimensional data (hereinafter referred to as "3D data"), such as a laser type.

[0036] A terminal device 28 is connected to the 3D scanner 26 by wire or wireless connection, and 3D data acquired by the 3D scanner 26 is taken into the terminal device 28 periodically or irregularly. The terminal device 28 may be any of the following, such as a laptop PC (e.g., personal computer), desktop PC, tablet device, or smartphone, that is capable of communicating with the 3D scanner 26 and the server 32. The 3D data is, for example, a collection of point information in three-dimensional coordinates of X, Y, and Z, and is point cloud data that represents the shape of the diagnostic surface, such as strain, distortion, unevenness, and inclination.

[0037] The terminal device 28 is connected to the server 32 via a network 30 such as the internet. The terminal device 28 transmits the acquired 3D data to the server 32.

[0038] Server 32 is an example of a diagnostic information generation unit that diagnoses the flange surface 7 using 3D data received from the terminal device 28 and generates flange medical record data, which is diagnostic information including abnormality location information indicating abnormalities on the flange surface 7. The flange medical record data generated by Server 32 is transmitted to the terminal device 28 wirelessly or via wired connection in a timely manner, either automatically or upon request from the terminal device 28.

[0039] The terminal device 28 is equipped with an information display unit 34, which receives flange medical record data transmitted by the server 32, and based on this flange medical record data, displays the flange surface 7 and abnormal location information representing the abnormal location to the information display unit 34.

[0040] In this first embodiment, the terminal device 28 functions as a relay device that transfers 3D data acquired from the 3D scanner 26 to the server 32, and also functions as a presentation device that presents flange medical record data, which is diagnostic information.

[0041] <Hardware of Diagnostic System 24> Figure 3 shows an example of the hardware of the diagnostic system 24, with the network 30 omitted. The terminal device 28 includes a processor 36, memory 38, input / output (I / O) unit 40, communication unit 42, information display unit 34, etc. The server 32 includes a processor 46, memory 48, input / output (I / O) unit 50, communication unit 52, etc.

[0042] In this embodiment, the processor 36 on the terminal device 28 side executes a program stored in the memory 38 and performs processes such as acquiring 3D data from the 3D scanner 26, transmitting the 3D data to the server 32, receiving flange medical record data from the server 32, and presenting the flange medical record data.

[0043] The memory 38 on the terminal device 28 is used to store at least 3D data and flange medical record data. This memory 38 is an example of a recording medium that includes ROM (Read-Only Memory) and RAM (Random-Access Memory). The ROM stores various data, including the OS (Operating System), information presentation programs, and flange medical record data. The RAM is used as a work area for information processing.

[0044] I / O40 is controlled by the processor 36 and used for acquiring 3D data from the 3D scanner 26, transmitting 3D data, receiving flange medical record data from the server 32, and sending flange medical record data to the information display unit 34.

[0045] The communication unit 42 is primarily used for sending and receiving data, such as communicating with the communication unit 52 of the server 32.

[0046] The processor 46 on the server 32 executes a program stored in memory 48 and performs information processing such as receiving 3D data from the terminal device 28, generating flange report data from the 3D data, performing diagnostic processing on the sealing surface 8, generating a diagnostic database (diagnostic DB 54), and transmitting the flange report data. To generate the flange report data, the difference between the 3D data and reference data is calculated, and based on this difference data, diagnostic information including abnormal location information indicating abnormal locations where the difference in the direction perpendicular to the reference surface exceeds a predetermined threshold is generated, i.e., flange report data. The threshold is set, for example, based on the allowable values ​​of strain and damage on the diagnostic surface defined by a predetermined standard based on the reference surface. The standard is, for example, ASME (American Society for Mechanical Engineers) or API (American Petroleum Institute). The standard may also be a independently established standard. This proprietary standard is set considering, for example, at least one of the following: the type of gasket 10 used in flange 6-1 (6-2), the type and temperature of the fluid, the operating environment and usage time of flange 6-1 (6-2), the predicted lifespan of flange 6-1 (6-2), and measures to extend the lifespan of flange 6-1 (6-2). The proprietary standard may be set with a higher threshold than the threshold based on ASME or API. In this case, the proprietary standard will be more lenient than ASME or API, leading to a longer lifespan for flange 6-1 (6-2). Conversely, the proprietary standard may be set with a lower threshold than the threshold based on ASME or API.

[0047] The memory 48 on the server 32 side similarly includes a recording medium that contains ROM, RAM, etc. The ROM stores the OS, diagnostic programs, and diagnostic DB 54. The RAM similarly constitutes the work area for information processing.

[0048] I / O 50 is controlled by processor 46 and used for acquiring 3D data from terminal device 28, transmitting flange medical record data, and other purposes.

[0049] The communication unit 52 is used for communication with the communication unit 42 of the terminal device 28, and is used for receiving 3D data and sending and receiving flange medical record data.

[0050] <Diagnosis DB54> Figure 4 shows an example of a diagnostic DB 54. This diagnostic DB 54 is configured with a date and time section 56, an equipment information section 58, a measurement result section 60, a scratch / adhesion result section 62, and a strain result section 64.

[0051] The date and time section 56 stores date and time information, such as the maintenance date and time and the creation date of the flange record.

[0052] The equipment information unit 58 stores equipment information primarily for identifying equipment on which flanges 6-1 and 6-2 are mounted. This equipment information includes target equipment information, plant name information, fluid information, flange name information, design temperature information, design pressure information, operating temperature information, operating pressure information, test pressure (water pressure) information, and other test pressure (gas pressure) information.

[0053] The measurement results unit 60 stores information such as the flange surface 7, the sealing surface 8, a color condition diagram (color condition image 76), angle information, abnormal location information, judgment information, a color scale, height information, a position mark, and a notification display data. The sealing surface information includes contour information of the sealing surface 8. The color condition diagram is color information that represents the condition of scratches, etc., using a color scheme corresponding to the color scale. This color information includes the color scheme range, hue, intensity, saturation, and brightness. The angle information includes angle information that matches the angle indicated in B of Figure 1. The abnormal location information includes symbolic information for identifying abnormal locations. The judgment information is judgment result information for abnormal locations where the difference from the standard exceeds a threshold. The notification display 21 (Figure 6) is notification information, such as an arrow, that points out the location of the abnormal location.

[0054] A color scale is an example of a color scheme standard that represents the relationship between the color scheme of a color state diagram and reference data. It is a scale information expressed in hues ranging from warm to cool colors, corresponding to reference data that identifies differences in a diagnostic surface, such as dark red, red, orange, yellow, yellow-green, green, blue, indigo, and dark blue. In addition to hue, lightness, saturation, or brightness may also be used in the color scheme, and the hue may include black, gray, and white.

[0055] The scratch / deposit result unit 62 stores scratch information, deposit information, judgment criteria, and results for identifying the location and condition of scratches and deposits on the sealing surface 8. This scratch / deposit result unit 62 is configured with a scratch / deposit result data unit 62-1 and a judgment criteria / result unit 62-2. The scratch / deposit result data unit 62-1 stores location information representing the location of the scratch or deposit, length information representing its length, depth information representing the depth of the scratch, height information representing the height of the deposit, sealing surface width W, and contour line information representing the condition of the scratch / deposit. The judgment criteria / result unit 62-2 stores gasket type information representing the gasket type, the ratio of the scratch width to the sealing surface width W, and judgment information representing the judgment result.

[0056] The strain result section 64 includes a radial strain section 64-1, a circumferential strain section 64-2, and a flange rotation section 64-3. The radial strain section 64-1 stores radial strain data of the sealing surface 8 and its judgment criteria and results, the circumferential strain section 64-2 stores circumferential strain data and its judgment criteria and results, and the flange rotation section 64-3 stores strain data and its judgment criteria and results.

[0057] The radial strain section 64-1 is configured with a strain data section 64-11 and a judgment criteria / result section 64-12. The strain data section 64-11 stores data such as the position, reference value, height, and contour of the radial strain, while the judgment criteria / result section 64-12 stores the range relative to the reference point and the pass / fail judgment result.

[0058] The circumferential strain section 64-2 is configured with a strain data section 64-21 and a judgment criteria / result section 64-22. The strain data section 64-21 stores data such as the position, reference value, height, depth, and contour of the circumferential strain, while the judgment criteria / result section 64-22 stores the range relative to the reference point and the pass / fail judgment result.

[0059] The flange rotation section 64-3 is configured with a strain data section 64-31 and a judgment criteria / results section 64-32. Flange rotation indicates strain that curves in a direction perpendicular to the reference plane (upward or downward in the case of vertical pipelines 4-1 and 4-2). The strain data section 64-31 stores data such as the position, reference value, height, and contour of the flange rotation, while the judgment criteria / results section 64-32 stores the range relative to the reference point and the pass / fail judgment result.

[0060] This diagnostic DB54 stores various information relating to scratches, deposits, and distortions on flanges 6-1 and 6-2. Specifically, it stores diagnostic information including abnormal location information that indicates abnormal areas where the difference in the direction perpendicular to the reference surface exceeds a predetermined threshold, based on the difference between the sealing surface 8, which is the diagnostic surface of the part, and a reference surface.

[0061] The data stored in this diagnostic DB54 is used to form the flange report 66 (A in Figure 5). Therefore, the flange report 66 is an example of diagnostic information that includes abnormality information indicating abnormal areas on the sealing surface 8.

[0062] <Flange Chart 66> Figure 5A shows the flange report 66 presented on the information display unit 34. The flange report 66 is an example of a diagnostic form of this disclosure that presents diagnostic information including diagnostic results. This flange report 66 includes an equipment information table 68, a measurement results table 70, a scratch / adhesion results table 72, and a strain results table 74.

[0063] According to this flange report 66, the flange report 66 can be displayed on a single screen of the information display unit 34 of the terminal device 28. For example, the sealing surface 8 can be identified from the equipment information table 68, and the presence or absence of scratches or deposits, their size and depth, etc., can be visually confirmed from the colored image (color state diagram) shown in the measurement results table 70 for that sealing surface 8. The location, depth, and size of scratches on the sealing surface 8 can be easily grasped in detail from the scratch / deposit result table 72 and the strain result table 74.

[0064] <Equipment Information Table 68> Figure 5B shows an example of the device information table 68. This device information table 68 is presented as a single table composed of data stored in the device information section 58 of the diagnostic DB 54.

[0065] <Measurement Results Table 70> Figure 6 shows an example of a measurement results table 70. This measurement results table 70 presents the data stored in the measurement results section 60 of the diagnostic DB 54, along with a color state image 76, which is an example of a color state diagram, on a color scale 78. The common codes representing each hue in the color state image 76 and the color scale 78 indicate the same hue and its range.

[0066] The color state image 76 shows the bolt fastening portion 12 on the outer circumference of the flange surface 7 and the sealing surface 8 on the inner circumference, indicated by color scheme, along with information on deposits 20A, 20B, 20C, 20D, 20E, and 20F representing scratches, deposits, etc. Each deposit information 20A, 20B, 20C, 20D, 20E, and 20F may consist of message information including a pointing indicator 21 (for example, an arrow). The positions of each deposit information 20A, 20B, 20C, 20D, 20E, and 20F are shown in Figure 1B as deposit portions 20a, 20b, 20c, 20d, 20e, and 20f in the color state image 76. The color state image 76 also shows angles and grid lines 22 representing angular positions. The message information is an example of abnormal location information. The message information specifically indicates the type of abnormal location. The type of abnormal location may be, for example, a scratch or deposits. The message information may indicate the result of the abnormality determination. The result of the abnormality determination is expressed as, for example, OK or NG. The message information corresponding to the deposit information 20A, 20B, 20C, 20D, 20E, and 20F all indicate an NG determination result. If the part is a flange, the abnormality determination is made, for example, by whether the abnormality level of the abnormality location leads to fluid leakage. The color state image 76 can also be described as a 3D color state diagram that colorizes the height difference between the reference surface and the diagnostic surface when the cylindrical axis is in the vertical direction as described above.

[0067] The color scale 78 is an example of a color scheme standard used in the color state image 76. In this color scale 78, along with the hue, each hue is identified by reference data representing the scale of damage. In this embodiment, dark red 78-1, red 78-2, orange 78-3, yellow 78-4, green 78-5, blue-green 78-6, blue 78-7, indigo 78-8, and dark blue 78-9 are used as different hues from warm colors to cool colors. In other words, the color scheme standard is colored within a plurality of predetermined ranges included in the color scheme standard of ±0.01 mm or more and ±0.2 mm or less. The color scheme standard may be set according to the tolerance value of the strain on the diagnostic surface. For example, the color scheme standard is set so that the colors are colored at intervals of one-fifth to one-third of the tolerance value of the circumferential or radial strain of the flange surface 7, which will be described later. The color scheme is set so that, for example, if the tolerance for circumferential or radial strain is ±0.15 mm or ±0.25 mm, the color is divided into 0.05 mm increments. This ensures that even if the abnormality of the flange surface 7 is minor, it is colored in small increments, allowing the overall distortion of the flange surface 7 to be observed. In another embodiment, for example, the tolerance range of ±0.15 mm relative to the reference surface may be colored collectively to indicate a good judgment, allowing only localized abnormal areas to be focused.

[0068] In this embodiment, the above colors are assigned in a gradient on the color scale 78. In this embodiment, green 78-5, which indicates a normal area, corresponds to the first color. In this embodiment, dark red 78-1 and red 78-2, which indicate protruding parts among the abnormal areas, correspond to the second color. In this embodiment, blue 78-7, indigo 78-8, and dark blue 78-9, which indicate recessed parts among the abnormal areas, correspond to the third color. The colors used in the color state image 76 are an example of abnormal area information. In this embodiment, the first color, second color, and third color correspond to abnormal area information.

[0069] In this embodiment, the color status image 76 indicates abnormal locations using message information as well as a first color, a second color, and a third color, but is not limited to this configuration. The color status image 76 may indicate abnormal locations using only message information, without associating colors with abnormal locations. The color status image 76 may also indicate abnormal locations using only the first color, a second color, and a third color.

[0070] Therefore, the bolt fastening portion 12 of the flange surface 7 and the sealing surface 8 can be identified by hue from the color scheme and range of the color state image 76, and differences or similarities in the hue of the sealing surface 8 can be identified by the color scale 78, which indicates the length, height, depth, or difference of scratches, or the presence of attached materials, and by text data representing message information that points out the abnormal area. In addition to the hues of dark red 78-1, red 78-2, orange 78-3, yellow 78-4, green 78-5, blue-green 78-6, blue 78-7, indigo 78-8, and dark blue 78-9, one or more of the following may also be used in combination: lightness, saturation, brightness, etc.

[0071] <Flange Scratch / Adhesion Results Table 72> Figure 7A shows an example of a flange scratch / deposit result table 72. This flange scratch / deposit result table 72 has a section 72-1 for the condition of scratches / deposits on the flange and a section 72-2 for judgment criteria. The scratch / deposit condition section 72-1 shows the condition of scratches or deposits on the flange surface 7. The judgment criteria section 72-2 shows the judgment criteria and judgment results for determining the condition of the flange surface 7 due to scratches or deposits.

[0072] In the flange scratch / deposit status section 72-1, data stored in the flange scratch / deposit result data section 62-1 of the diagnostic DB 54 is displayed on a table. As a display of the deposit status on the sealing surface 8, in this embodiment, the length and depth of the scratches, which represent the status of each part specified by the deposit information 20A, 20B, 20C, 20D, 20E, and 20F, are displayed along with a contour line display rk. The contour line display rk is an example of outline information that represents the length and depth of the scratches relative to the radial position of the deposit information 20A, 20B, 20C, 20D, 20E, and 20F. The radial direction is the direction extending radially from the center of the flange surface 7.

[0073] The judgment criteria section 72-2 presents judgment information in a table that shows the ratio of the scratch width to the seal surface width W, for example, for soft gaskets and metal gaskets, the judgment results for scratch widths up to 1 / 4: <··mm, 1 / 4 to 1 / 2: <··mm, 1 / 2 to 3 / 4: <··mm, 3 / 4 to the whole: <··mm, and the overall judgment result. Figure 7A illustrates a case where the judgment result for scratches / adhesion is NG. This is because there are places where the width of the adhesion in section E in the radial direction exceeds 3 / 4 of the seal surface width W.

[0074] <Radial strain table 74-1> Figure 7B shows an example of a radial strain table 74-1. This radial strain table 74-1 has a radial strain section 74-11 and a judgment criterion section 74-12. The radial strain section 74-11 shows the radial strain of the flange surface 7. The judgment criterion section 74-12 shows the judgment criteria and judgment results for determining the state of the flange surface 7 due to radial strain.

[0075] In the radial strain section 74-11, the data stored in the strain data section 64-21 of the diagnostic DB 54 is displayed on a table. In addition, in the judgment criteria section 74-12, the data stored in the judgment criteria / results section 64-12 of the diagnostic DB 54 is displayed on a table.

[0076] In this embodiment, the radial strain status of the sealing surface 8 is presented using a contour line display rk, which is a contour line parameterized by the strain height, which represents the status of each part in relation to the angle, and the position on the sealing surface 8 (inner diameter, center, and outer diameter of the annular sealing surface 8). This contour line display rk is an example of external shape information representing strain relative to the position of radial strain, where Ru is the upper limit threshold of the contour line and Rb is the lower limit threshold of the contour line. Figure 7B illustrates the case where the radial strain judgment result is NG. This is because the height of the contour line falls outside the range between the upper and lower limit thresholds at 0°, 90°, 270°, and 315°. The allowable value of radial strain when the cylindrical axis is in the vertical direction is set to, for example, ±0.15 mm to ±0.25 mm. The upper limit threshold Ru of the contour line is set to, for example, a value of 0.15 mm or more and 0.25 mm or less. The lower threshold Rb for the contour line is set to a value between -0.25 mm and -0.15 mm, for example.

[0077] <Circumferential strain table 74-2> Figure 8A shows an example of a circumferential strain table 74-2. This circumferential strain table 74-2 has a circumferential strain section 74-21 and a judgment criterion section 74-22. The circumferential strain section 74-21 shows the strain in the circumferential direction of the flange surface 7. The judgment criterion section 74-22 shows the judgment criteria and judgment results for determining the state of the flange surface 7 due to circumferential strain.

[0078] The circumferential strain section 74-21 displays the data stored in the circumferential strain section 64-2 of the diagnostic DB 54 on a table. The judgment criteria section 74-22 displays the data stored in the judgment criteria / results section 64-22 of the diagnostic DB 54 on a table.

[0079] In this embodiment, to show the circumferential strain of the sealing surface 8, the identified circumferential strain is presented using contour line indicators rk, which are plotted in relation to the inner diameter, outer diameter, and the position between the inner and outer diameters of the sealing surface 8, as well as the angular position on the sealing surface 8. The uppermost contour line indicator rk in the circumferential strain section 74-21 shows the circumferential strain of the outer diameter of the sealing surface 8. The contour line indicator rk below it shows the circumferential strain between the inner and outer diameters of the sealing surface 8. The lowest contour line indicator rk shows the circumferential strain of the inner diameter of the sealing surface 8. These contour line indicators rk are examples of external shape information representing the outer diameter shape of the strain relative to the position of the circumferential strain, where Ru is the upper limit threshold of the contour line and Rb is the lower limit threshold of the contour line. Figure 8A illustrates the case where the circumferential strain determination result is NG. This is because the strain height at angles between 180° and 270° on the sealing surface 8 exceeds the upper limit threshold. The allowable value for circumferential strain when the cylindrical axis is in the vertical direction is set to, for example, ±0.15 mm to ±0.25 mm. The upper threshold Ru of the contour line is set to, for example, a value of 0.15 mm or more and 0.25 mm or less. The lower threshold Rb of the contour line is set to, for example, a value of -0.25 mm or more and -0.15 mm or less.

[0080] <Flange Rotation Table 74-3> Figure 8B shows an example of a flange rotation table 74-3. This flange rotation table 74-3 is configured with a flange rotation section 74-31 and a judgment criterion section 74-32.

[0081] The flange rotation section 74-31 displays the data stored in the flange rotation section 64-3 of the diagnostic DB 54 on a table. The judgment criteria section 74-32 displays the data stored in the judgment criteria / results section 64-32 of the diagnostic DB 54 on a table.

[0082] In this embodiment, to illustrate the flange rotation status, the identified circumferential strain is shown in relation to the angle, along with the positions of the flange rotation at angles 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315° on the sealing surface 8 (inner diameter, center, and outer diameter of the annular sealing surface 8), as shown by the contour line display rk. This contour line display rk is an example of the external shape information representing the flange rotation identified at each angle, where Ru is the upper threshold of the contour line and Rb is the lower threshold of the contour line. Figure 8B illustrates the case where the flange rotation judgment result is NG. This is because the height of the contour line falls below the lower threshold at all angles.

[0083] <Contour line data acquisition process> Figure 9A shows an example of the process for acquiring contour line data of the attached material portion 20f. In Figure 9A, the same parts as in Figure 1 are denoted by the same reference numerals.

[0084] To obtain contour line data Df including the seal surface 8 and the attached portion 20f on the seal surface 8, one can identify the contour line that encloses the outer shape of the seal surface 8 and the attached portion 20f from the X-axis baseline (radial angle direction) passing through the attached portion 20f, the Y-axis baseline in the circumferential direction, and the Z-axis baseline in the vertical direction.

[0085] <Variation of Flange Scratch / Adhesion Results Table 72> Figure 9B shows a modified example of the flange scratch / deposit result table 72. In Figure 9B, the same parts as in Figure 7A are denoted by the same reference numerals.

[0086] In Figure 7A, the section 72-1 showing the condition of scratches or deposits on the flange displays contour lines rk, which are identified by sections A, B, ..., F, indicating the location of the scratches or deposits. However, in Figure 9B, instead of the section 72-1 showing the condition of scratches or deposits, the section 72-3 shows magnified partial images pk-a, pk-b, pk-c, pk-d, pk-e, pk-f, which represent the location of sections A, B, ..., F. In this way, the user can recognize the details of the abnormal condition of the deposit sections 20a, 20b, ..., 20f, along with their location, by using the magnified partial images pk-a, pk-b, pk-c, pk-d, pk-e, pk-f. In the magnified images pk-a, pk-b, pk-c, pk-d, pk-e, and pk-f, the location of the scratch or deposit may be indicated by a circle surrounded by a dashed line, for example, or the scratch or deposit may be indicated by a different color scheme.

[0087] <Diagnostic Processing Procedure> Figure 10 shows a diagnostic processing sequence according to the first embodiment. This processing sequence is an example of a diagnostic information presentation method, diagnostic method, or program according to the present invention. In this processing sequence, S represents a process, and the numbers attached to S indicate the order of the processes; however, the present invention is not limited to this order of processes.

[0088] This processing sequence includes a 3D data acquisition step to acquire 3D data from the flange surface 7, a diagnostic information generation step to generate diagnostic information for the sealing surface 8, and a presentation step to present the diagnostic information. More specifically, the diagnostic information generation step includes a difference step to find the difference between the diagnostic surface data and the reference data, a color scheme step to generate a color state image by assigning one or more of hue, lightness, or saturation to the abnormal location information, and a contour line data generation step to generate contour line data representing the contour lines along the diagnostic surface.

[0089] If we associate the processing sequence with such processing steps, the 3D data acquisition step corresponds to acquiring 3D data (S101), transmitting 3D data (S102), receiving 3D data (S103), transmitting 3D data (S104), receiving 3D data (S105), and reading reference data (S106). The diagnostic information generation step corresponds to generating difference data (S107), generating contour data (S108), diagnosis (S109), generating flange chart data (S110), transmitting flange chart data (S111), and receiving flange chart data (S112). The difference step corresponds to generating difference data (S107), the contour generation step corresponds to generating contour data (S108), and the presentation step corresponds to presentation (S113).

[0090] To diagnose the sealing surfaces 8 of flanges 6-1 and 6-2, the flange fastener 2 is disassembled, and flanges 6-1 and 6-2 are separated from the flange fastener 2 to expose their respective sealing surfaces 8. After cleaning the sealing surfaces 8, the 3D scanner 26 is operated to acquire 3D data of the flange surface 7, including the sealing surface 8 (diagnostic surface) (S101). The 3D scanner 26 transmits the acquired 3D data to the terminal device 28 (S102), and the terminal device 28 receives the 3D data (S103).

[0091] The terminal device 28 transmits the 3D data received from the 3D scanner 26 to the server 32 (S104), and the server 32 receives the 3D data from the terminal device 28 (S105) and acquires the 3D data from the 3D scanner 26.

[0092] Server 32 synchronizes with the acquisition of 3D data and reads reference data corresponding to the flange identified in the 3D data from the diagnostic DB 54 (S106). Server 32 then moves to the difference process and generates difference data representing the difference between the seal surface 8, which is the diagnostic surface, and the reference surface of the reference data (S107). In this embodiment, Server 32 then moves to the contour line data generation process and generates contour line data representing the contour line along the seal surface 8, which is the diagnostic surface (S108).

[0093] Server 32 performs a diagnosis using reference data, difference data, or contour data (S109). This diagnosis includes acquiring difference data representing the difference in a direction perpendicular to the reference plane, and creating diagnostic information that includes abnormal location information indicating abnormal locations where the difference shown by this difference data exceeds a predetermined threshold. For example, this diagnostic information generation step may include generating diagnostic information that includes determination information indicating whether at least one of the lengths, heights, and depths of the attached material portions 20a, 20b, 20c, 20d, 20e, and 20f, which are abnormal locations along the seal surface 8 (which is the diagnostic surface), or the difference of the abnormal locations in a direction perpendicular to the seal surface 8, is within the range of the reference data.

[0094] Based on the diagnostic results, the server 32 generates flange medical record data, which is an example of diagnostic information (S110), and transmits this flange medical record data to the terminal device 28 upon request from the terminal device 28 or automatically (S111).

[0095] The terminal device 28 receives flange medical record data transmitted from the server 32 (S112) and presents the flange medical record 66 to the information display unit 34 (S113). This flange medical record 66 is an example of diagnostic information and, as described above, includes abnormality location information indicating abnormal areas on the sealing surface 8. The flange medical record data is stored in the diagnostic DB 54 in a timely manner.

[0096] <Effects of the First Embodiment> According to this first embodiment, one of the following effects can be obtained. (1) The information display unit 34 can visually and intuitively display any abnormalities such as scratches or distortions on the flange surface 7 or the sealing surface 8, as well as the location of these abnormalities.

[0097] (2) The flange surface 7 or seal surface 8 and abnormal location information including diagnostic information can be displayed, and by presenting diagnostic information including a color status image 76 and a color scale 78 on a single screen, users such as workers can easily recognize the abnormal location information along with the flange surface 7 or seal surface 8 visually and intuitively.

[0098] (3) The diagnostic generation process may include a message information generation process that generates message information that points out abnormal areas. In the presentation process, information representing the flange surface 7 and the abnormal area can be presented to the information presentation unit 34 of the terminal device 28, and can be presented to the presentation device so that it appears to overlap with the abnormal area on the seal surface 8, and the abnormal area on the seal surface 8 can be presented to the user visually and intuitively. In presenting this diagnostic information, the abnormal area may be pointed out using message information generated in the message information generation process, and annotation (presentation of message information) can be used with text information including character information and symbol information, and the presence or absence of scratches, attached substances or distortions, and if there are scratches, attached substances or distortions, their locations can be informed to the user.

[0099] (4) The abnormal area information is indicated by a different color, symbol, or character from the diagnostic surface presentation on the seal surface 8, so the abnormal area can be easily recognized from the color state image 76.

[0100] (5) In addition to indicating abnormal areas such as scratches on the diagnostic surface, the device also indicates whether or not the abnormal area meets the predetermined judgment criteria, making it easy for the user to recognize the abnormal condition.

[0101] (6) Users can easily distinguish between areas with scratches, distortions (or warping) on ​​the diagnostic surface and normal areas, as well as the degree of damage, by the difference in color scheme, and this information can be used to support repairs such as polishing and cutting of the sealing surface 8.

[0102] (7) Contour data representing the contour lines on the sealing surface 8 is generated from the diagnostic surface data and presented as contour display rk, so that abnormal areas can be identified not only by color scheme but also by contour display rk.

[0103] (8) The measurement results table 70 visually indicates abnormal areas and conditions using the color state image 76 and the color scale 78, clearly showing conditions that differ from the standard.

[0104] (9) The color scale 78 is color-coded within a predetermined range included in the reference data of 0.01 mm to 0.2 mm, which represents the degree of abnormality. Therefore, the degree of abnormality relative to the reference data can be recognized by the container using the color state image 76 and the color scale 78 based on the difference in color scheme.

[0105] (10) The measurement results table 70 allows for the recognition of the shapes of the diagnostic surfaces, such as the flange surface 7 and the sealing surface 8, and the location of defects can be easily identified using the indicated mark 21. The contour line display rk representing the shape of defects, etc., presented in the defect / adhesion result table 72, radial strain table 74-1, circumferential strain table 74-2, or flange rotation table 74-3, which are presented adjacent to the measurement results table 70, can be referenced, and the strain (or distortion) that occurred in the outer diameter or circumferential direction of the sealing surface 8 from the center of the diagnostic surface can be easily identified.

[0106] [Second Embodiment] In this second embodiment, descriptions of configurations, processes, and other details that are equivalent to or the same as those in the first embodiment will be omitted. A in Figure 11 shows the flange fastener 2. In Figure 11, the same parts and components as in Figure 1 are denoted by the same reference numerals. This flange fastener 2 is, for example, a connecting part between pipelines 4-1 and 4-2 in the plant, and functions as a sealing part between the connecting pipelines. The configuration and state of this flange fastener 2 are the same as those described in paragraphs 0024-0027 of the first embodiment.

[0107] <Target for diagnosis> Figure 11B shows the flange surface 7 of flange 6-1 (6-2), which is an example of a component to be diagnosed. This flange surface 7 includes a bolt fastening portion 12 on its outer circumference and a sealing surface 8 on its inner circumference. The flange fastening body 2 is an example of a component in a plant that uses pipelines 4-1 and 4-2, and the sealing surface 8 is an example of a diagnostic surface 3 that is the target of diagnosis for this component. This diagnostic surface 3 may not be limited to the sealing surface 8, but may be the entire flange surface 7 including the bolt fastening portion 12.

[0108] The sealing surface 8 illustrated in Figure 11B has several deposits 20a, 20b, 20c, 20d, 20e, 20f and a scratch 20g as examples of abnormal areas caused by aging. Although not shown, there is radial strain, circumferential strain in the flange 6-1, and directional strain perpendicular to the flange surface 7 (or sealing surface 8). The deposits 20a, 20b, 20c, 20d, 20e, and 20f are protrusions on the sealing surface 8, and the scratch 20g is a recess on the sealing surface 8. In Figure 11B, along with the angles θ (θ=0°, 45°, 90°, 135°, 180°, 225°, 270°, 315°), the grid lines 22 added for each angle θ are imaginary lines added to identify the position on the surface of the sealing surface 8. The illustrated angles θ are just examples and are not limited to θ=45° intervals. If the diameters of flanges 6-1 and 6-2 are increased, an angle interval of 45° or less may be set to refine the inspection area.

[0109] <Presentation of diagnostic results> According to the diagnostic system 24 (Figure 2) of this disclosure, as an example of diagnostic timing, during maintenance of the flange fastener 2 which is performed periodically or irregularly, the system diagnoses the sealing surface 8, which is the target of the diagnosis, generates a flange report 66 (Figure 5A), and presents this flange report 66 to, for example, the information display unit 34 (Figure 2) of the terminal device 28. The flange report 66 represents the diagnosis result of the target of the diagnosis. The flange report 66 shows diagnostic information representing the diagnosis result. The diagnosis result is not limited to the configuration presented by the information display unit 34, and may also be presented on a paper diagnostic form.

[0110] The diagnosis of the sealing surface 8 includes the steps of acquiring difference data representing the difference 19 shown in Figure 12C between diagnostic surface data (e.g., 3D data) acquired from the sealing surface 8 and reference data (e.g., 3D data), and generating diagnostic information including abnormal location information that represents abnormal locations where the difference 19 exceeds a threshold.

[0111] Reference data is, for example, data showing the shape of a normal part. Reference data is, for example, data equivalent to diagnostic surface 3 showing the shape of a part before deterioration or after repair. Reference data is, for example, 3D data of an unused part, 3D data of a part used in the design of the part, 3D data of a simulated unused part, or 3D data of a repaired part. Reference data may be diagnostic surface data with a proper sealing surface 8, and diagnostic surface data showing the flange surface 7 before deterioration, or diagnostic surface data showing the flange surface 7 after repair where the abnormal part has been repaired may be used. The surface of the part in which the reference data shows the shape is the surface that is compared with the diagnostic surface 3 of the diagnostic surface data, which is the reference surface 9 shown in Figure 12B. Reference surface 9 is, for example, the flange surface 7 in which the reference data shows the shape. Reference surface 9 is not limited to this and should be set so as to be able to appropriately diagnose the deterioration of the part. The reference surface 9 may be, for example, a CAD model created from drawing information, a 3D measurement of an unused part, or a sealing surface 8 set perpendicular to a cylindrical axis consisting of the inner or outer diameter of flange 6-1 (6-2). The reference surface 9 intersects perpendicularly with the cylindrical axis, for example. The difference data shows the difference 19 between the reference surface 9 and the diagnostic surface 3 of the diagnostic surface data in a direction perpendicular to the reference surface 9. The difference data shows, for example, the difference 19 between the reference surface 9 and the diagnostic surface 3 of the diagnostic surface data in the direction in which fluid flows through pipe 4-2.

[0112] Furthermore, the diagnosis of the flange surface 7 including the sealing surface 8 as disclosed herein is not limited to the diagnosis of abnormalities in the part, but may also be used for monitoring the condition of parts such as flanges during repair processes of the sealing surface 8, such as polishing or cutting the flange surface 7.

[0113] This second embodiment includes the following information processing, etc. 1. Detection of the difference between the diagnostic surface and the reference surface, and generation of difference data. 2. Identifying abnormal areas Identification of the location, length, and depth of the abnormal area. • Generation of abnormal location information • Generation of a color state diagram • Generating text information 3. Presentation of diagnostic information • Presentation of diagnostic information using Flange Karte 66

[0114] <Extraction of 19 differences between diagnostic aspect 3 and reference aspect 9> Figures 12A, B, and C show an image of the differential data extraction process according to the second embodiment. In Figure 12, A is an image of the shape of flange 6-1 (6-2) indicated by the diagnostic surface data Dex obtained from the deteriorated flange to be diagnosed. Figure 12B is an image of the shape of flange 6-1 (6-2) indicated by the reference data Dref. Figure 12C is an image of the shape of flange 6-1 (6-2) indicated by the differential data Dbi. The data shown in Figure 12 is an example, and this disclosure is not limited to such data.

[0115] Figure 12A shows an example of the shape of the diagnostic surface 3 represented by the diagnostic surface data Dex, and corresponds to the cross-section of the XIIA-XIIA portion in Figure 11B. In Figure 12A, the same parts as in Figure 11B are given the same reference numerals. Therefore, this diagnostic surface data Dex contains information indicating abnormal areas such as the attached material portion 20a (protruding portion), the damaged portion 20g (recessed portion), and the distorted portion 20st.

[0116] Figure 12B shows an example of the shape of the reference surface 9 represented by the reference data Dref. The reference data Dref represents the shape of the flange surface 7 of a flange 6-1 (6-2) that is equivalent to a deteriorated flange, but is unused or has been repaired.

[0117] The difference data Dbi shown in Figure 12C is an example of an image obtained from the diagnostic surface data Dex and the reference data Dref. The difference data Dbi shows the difference 19 between the reference surface 9 and the diagnostic surface 3 in the orthogonal direction 17 (Figure 12B). This difference data Dbi may also be obtained by information processing such as comparison and subtraction of the diagnostic surface data Dex and the reference data Dref.

[0118] Furthermore, abnormal or normal locations represented by the differential data Dbi can be identified from deviations in the reference level range, for example, from the shift level, which deviates from the reference level range set based on the reference data Dref. <Setting of the second reference surface 9-2> The diagnostic system 24 may be configured to set a second reference surface 9-2 as shown in Figure 13. In the configuration where a second reference surface 9-2 is set, the reference surface 9 may be referred to as the first reference surface 9-1 to distinguish it. In this configuration, the diagnostic system 24 uses either the first reference surface 9-1 or the second reference surface 9-2 to identify the abnormal location, depending on the type of abnormality. Specifically, the first reference surface 9-1 is used to identify strain and distortion. The second reference surface 9-2 is used to identify a damaged area 20g or an attached substance area 20a. By using the second reference surface 9-2, the diagnostic system 24 can prevent errors in identifying the type or level of abnormality when diagnosing a flange 6-1 (6-2) with strain or distortion on the flange surface 7. For example, as shown in the cross-sectional view A in Figure 13, when a scratch 20g occurs in a strained or distorted area of ​​the flange surface 7, the difference 19b between a relatively shallow scratch 20g2 and a relatively deep scratch 20g1 is larger than the difference 19a between the scratch 20g1 and the scratch 20g2, when based on the first reference surface 9-1. In this way, when based on the first reference surface 9-1, a relatively deep scratch 20g1 may be mistakenly identified as a relatively shallow scratch 20g or a deposit 20a. Therefore, the diagnostic system 24 may set a second reference surface 9-2 for each scratch and identify the scratch 20g based on the second reference surface 9-2. The diagnostic system 24 may also set a second reference surface 9-2 for each deposit and identify the deposit 20a based on the second reference surface 9-2. The second reference surface 9-2 is set to a predetermined size that surrounds the abnormal area such as a scratch, as shown in B in Figure 13, for example. A predetermined length 23b is set between the scratch and the edge of the second reference surface 9-2. The second reference surface 9-2 is set as a plane along the area 23a surrounding the abnormal area such as a scratch on the flange surface 7. The shape of the second reference surface 9-2 is not particularly limited and may be circular or rectangular depending on the shape of the abnormal area. The diagnostic system 24 determines the damaged area 20g or the area with deposits 20a based on the difference 19 between the second reference surface 9-2 and a relatively deep scratch area 20g1 on a part of the diagnostic surface 3 in a direction perpendicular to the second reference surface 9-2.

[0119] The diagnostic system 24 may be configured to identify the injured area 20g, etc., based on reference surfaces Dref-1 and Dref-2, which are set as follows for the first reference surface 9-1 or the second reference surface 9-2. Reference surfaces Dref-1 and Dref-2 represent the reference data described above. <Setting of reference planes Dref-1 and Dref-2> When distortion and scratches occur due to deterioration of the flange surface 7, for example, using the same reference surface for both distortion detection and scratch detection may result in errors in scratch detection. In such cases, a separate reference surface may be set for each abnormal location.

[0120] Figure 14A shows the setting of the reference plane Dref-1. For example, the reference plane Dref-1 can be set as the smallest unit surrounding the damaged area 20g by setting grid lines 22c, 22c that encircle the area surrounding the damaged area 20g from the center O of the flange surface 7 with different radii r1, r2, and two grid lines 22, 22 that form an angle θ from the center. This reference plane Dref-1 can be set along the diagnostic surface of the flange surface 7.

[0121] Figure 14B shows the setting of another reference plane Dref-2. This reference plane Dref-2 can be selected from multiple reference planes using multiple orthogonal grid lines 22X and grid lines 22Y set on the X-axis of the flange surface 7 to select the smallest unit reference plane Dref-2 that surrounds the damaged area 20g. This reference plane Dref-2 should be set along the diagnostic surface of the flange surface 7.

[0122] <Diagnostic System 24> The diagnostic system 24 for performing information processing including the diagnostic process in this embodiment may be the same as the diagnostic system 24 shown in the first embodiment, and its description is as described in paragraphs 0034-0049.

[0123] <Diagnosis DB54> Figure 15 shows an example of a diagnostic DB 54. In Figure 15, the same parts and components as in Figure 4 are denoted by the same reference numerals. This diagnostic DB 54 is configured with a date and time section 56, an equipment information section 58, a measurement result section 60, a scratch / adhesion result section 62, and a strain result section 64.

[0124] The date and time section 56 stores date and time information, such as the maintenance date and time and the creation date of the flange record.

[0125] The equipment information unit 58 stores equipment information primarily for identifying equipment on which flanges 6-1 and 6-2 are mounted. This equipment information includes target equipment information, plant name information, fluid information, flange name information, design temperature information, design pressure information, operating temperature information, operating pressure information, test pressure (water pressure) information, and other test pressure (gas pressure) information.

[0126] The measurement results unit 60 stores information such as the flange surface 7, the seal surface 8, a color condition diagram (color condition image 76), angle information, abnormal location information, judgment information, a color scale, altitude information, depth information, low-altitude information, position mark information, and pointed-out display data. The seal surface information includes contour information of the seal surface 8. The color condition diagram is color information that represents the condition of scratches, etc., using a color scheme corresponding to the color scale. This color information includes the color scheme range, hue, intensity, saturation, and brightness. The angle information includes angle information that matches the angle indicated in B of Figure 11. The abnormal location information includes symbolic information for identifying abnormal locations. The judgment information is judgment result information for abnormal locations where the difference from the standard exceeds a threshold. The pointed-out display 21 (Figure 16) is pointed-out information, such as an arrow, that indicates the location of the abnormal location.

[0127] The color scale is an example of a color scheme criterion that represents the relationship between the color scheme of a color state diagram and reference data. It is a scale information expressed in hues ranging from warm to cool colors, corresponding to the reference data that identifies the difference 19 for the diagnostic surface 3. For example, hues such as dark red, red, orange, yellow, green, blue-green, blue, indigo, and dark blue. In addition to hue, lightness, saturation, or brightness may also be used in the color scheme, and the hue may include black, gray, and white.

[0128] The scratch / deposit result unit 62 stores scratch information, deposit information, judgment criteria, and results for identifying the location and condition of scratches and deposits on the sealing surface 8. This scratch / deposit result unit 62 is configured with a scratch / deposit result data unit 62-1 and a judgment criteria / result unit 62-2. The scratch / deposit result data unit 62-1 stores location information representing the location of the scratch or deposit, length information representing its length, depth information representing the depth of the scratch, height information representing the height of the deposit, information on the sealing surface width W, and contour line information representing the condition of the scratch / deposit. The judgment criteria / result unit 62-2 stores gasket type information representing the gasket type, the ratio of the scratch width to the sealing surface width W, information indicating the height tolerance range, information indicating the depth tolerance range, and judgment result information representing the judgment result.

[0129] The strain result section 64 includes a radial strain section 64-1, a circumferential strain section 64-2, and a flange rotation section 64-3. The radial strain section 64-1 stores radial strain data of the sealing surface 8 and its judgment criteria and results, the circumferential strain section 64-2 stores circumferential strain data and its judgment criteria and results, and the flange rotation section 64-3 stores strain data and its judgment criteria and results.

[0130] The radial strain section 64-1 is configured with a strain data section 64-11 and a judgment criteria / results section 64-12. The strain data section 64-11 stores data such as the position, reference value, height, depth, and contour of the radial strain, while the judgment criteria / results section 64-12 stores the range relative to the reference point and the pass / fail judgment result.

[0131] The circumferential strain section 64-2 is configured with a strain data section 64-21 and a judgment criteria / result section 64-22. The strain data section 64-21 stores data such as the position, reference value, height, depth, and contour of the circumferential strain, while the judgment criteria / result section 64-22 stores the range relative to the reference point and the pass / fail judgment result.

[0132] The flange rotation section 64-3 is configured with a strain data section 64-31 and a judgment criteria / results section 64-32. Flange rotation indicates strain that curves in a direction perpendicular to the reference plane (upward or downward in the case of vertical pipelines 4-1 and 4-2). The strain data section 64-31 stores data such as the position, reference value, height, depth, and contour of the flange rotation, while the judgment criteria / results section 64-32 stores the range relative to the reference point and the pass / fail judgment result.

[0133] This diagnostic DB54 stores various information representing scratches, deposits, and distortions associated with flanges 6-1 and 6-2. Specifically, it stores diagnostic information including abnormal location information that indicates abnormal areas where the difference 19 in the direction perpendicular to the reference surface 9 exceeds a predetermined threshold, based on the difference 19 between the diagnostic surface 3 and the reference surface 9 that is the target of the part's diagnosis.

[0134] The data stored in this diagnostic DB54 is used to form the flange report 66 (A in Figure 5). Therefore, the flange report 66 is an example of diagnostic information that includes abnormality information indicating abnormal areas on the sealing surface 8.

[0135] <Measurement Results Table 70> Figure 16 shows an example of a measurement results table 70. In Figure 16, the same parts and components as in Figure 6 are denoted by the same reference numerals. This measurement results table 70 presents the data stored in the measurement results section 60 of the diagnostic DB 54 along with a color state image 76, which is an example of a color state diagram, on a color scale 78. The common numerals representing each hue in the color state image 76 and the color scale 78 indicate the same hue and its range.

[0136] The color state image 76 is an example of image presentation information of contour and depth information with color schemes. In this color state image 76, the bolt fastening portion 12 on the outer circumference of the flange surface 7 and the sealing surface 8 on the inner circumference are presented by color scheme, and deposit information 20A, 20B, 20C, 20D, 20E, 20F, and 20G representing scratches and deposits are also presented. Each deposit information 20A, 20B, 20C, 20D, 20E, 20F, and 20G may consist of message information including a pointing indicator 21 (for example, an arrow). The locations of each deposit information 20A, 20B, 20C, 20D, 20E, 20F, and 20G are shown in Figure 11B, where the deposit portion 20a, 20b, 20c, 20d, 20e, 20f and the scratch portion 20g are shown in the color state image 76. Furthermore, this color state image 76 presents angles representing angular positions and grid lines 22.

[0137] The message information is an example of abnormal location information. The message information specifically indicates the type of abnormal location. The type of abnormal location may be, for example, a scratch or a deposit. The message information may also indicate the result of the abnormal location determination. The result of the abnormal location determination may be indicated as OVER or UNDER, for example, whether or not it exceeds the upper and lower threshold limits, or as OK or NG, with the threshold being considered as good or bad. For example, the message information corresponding to the deposit information 20A, 20B, 20C, 20D, 20E, 20F, and 20G all show a determination result of NG. If the part is a flange, the abnormal location determination is made, for example, by whether or not the abnormal level of the abnormal location leads to fluid leakage. The color state image 76 can also be described as a 3D color state diagram that colorizes the height difference between the reference surface and the diagnostic surface 3 when the cylindrical axis is in the vertical direction as described above.

[0138] The color scale 78 is an example of a color scheme standard used in a color state diagram. In this color scale 78, along with the hue, each hue is identified by reference data representing the scale of damage. In this embodiment as well, the same color scheme processing using the color scale 78 as in the first embodiment may be performed. Specifically, the same configuration as described in paragraphs 0067-0070 may be adopted.

[0139] <Flange Scratch / Adhesion Results Table 72> Figure 17A shows an example of a flange scratch / deposit result table 72. In Figure 17, the same components and parts as in Figure 7 are denoted by the same reference numerals. This flange scratch / deposit result table 72 has a section 72-1 for the condition of scratches / deposits on the flange and a section 72-2 for judgment criteria. The scratch / deposit condition section 72-1 shows the condition of scratches or deposits on the flange surface 7. The judgment criteria section 72-2 shows the judgment criteria and judgment results for determining the condition of the flange surface 7 due to scratches or deposits.

[0140] The flange scratch / deposit status section 72-1 displays data stored in the flange scratch / deposit result data section 62-1 of the diagnostic DB 54 on a table. In this embodiment, the condition of deposits on the sealing surface 8 is displayed as a contour line display rk, along with the length and depth of the scratches, which represent the condition of each part specified by the deposit information 20A, 20B, 20C, 20D, 20E, 20F, and 20G. That is, the scratch / deposit status section 72-1 includes length information 73a indicating the length of the scratches and depth information 73b indicating the depth of the scratches. The contour line display rk is an example of outline line information that represents the length and depth of the scratches relative to the radial position of the deposit information 20A, 20B, 20C, 20D, 20E, 20F, and 20G. The radial direction is the direction extending radially from the center of the flange surface 7 toward the periphery of the flanges 6-1 and 6-2.

[0141] The judgment criteria section 72-2 presents judgment information, including judgment criteria and overall judgment results, in a table. The judgment information includes the scratch depth tolerance table 72a. The scratch depth tolerance table 72a shows the tolerance value for scratch depth in relation to the gasket type and the ratio of the scratch width to the seal surface width W. The scratch width corresponds to the scratch length shown in the length information 73a. The judgment result is obtained by comparing the tolerance value for scratch depth corresponding to the ratio of the scratch width to the seal surface width W with the scratch depth shown in the depth information 73b, and determining whether the scratch depth exceeds the tolerance value. Figure 17A illustrates the case where the scratch / adhesion judgment result is NG. This judgment is performed for each scratch in section A, section B, etc., section G, and if even one judgment is NG, the scratch / adhesion result table 72 judges the overall result as NG. Examples of gasket types include soft gaskets and metal gaskets. The ratio of the scratch width to the seal surface width W is defined, for example, up to 1 / 4, 1 / 4 to 1 / 2, 1 / 2 to 3 / 4, and 3 / 4 to the entire surface. Furthermore, if at least one of sections A through G has a location where the width of the deposit in section E in the radial direction exceeds 3 / 4 of the seal surface width W, the overall result may be judged as NG.

[0142] <Radial strain table 74-1> Figure 17B shows an example of a radial strain table 74-1. This radial strain table 74-1 has the same configuration as shown in paragraphs 0074-0076 of the first embodiment.

[0143] <Circumferential strain table 74-2, flange rotation table 74-3> In this embodiment, the circumferential strain table 74-2 and the flange rotation table 74-3 have the same configuration as shown in Figure 8 and paragraphs 0077-0082 of the first embodiment, and their description is omitted.

[0144] <Contour line data acquisition process> Figure 18A shows an example of the process for acquiring contour line data of the attached material portion 20f. In Figure 18A, the same parts as in Figures 9 and 11 are denoted by the same reference numerals.

[0145] To obtain contour line data Df including the seal surface 8 and the attached portion 20f on the seal surface 8, one can identify the contour line that encloses the outer shape of the seal surface 8 and the attached portion 20f from the X-axis baseline (radial angle direction) passing through the attached portion 20f, the Y-axis baseline in the circumferential direction, and the Z-axis baseline in the vertical direction.

[0146] <Variation of Flange Scratch / Adhesion Results Table 72> Figure 18B shows a modified example of the flange scratch / deposit result table 72. In Figure 18B, the same parts as in Figure 7A, Figure 9B, and Figure 17A are denoted by the same reference numerals.

[0147] In Figure 17A, the section 72-1 showing the condition of scratches / deposits on the flange displays contour lines rk, which are identified by sections A, B, ..., and G, indicating the location of the scratches or deposits. However, in Figure 18B, instead of the section 72-1 showing the condition of scratches / deposits, section 72-3 displays magnified partial images pk-a, pk-b, pk-c, pk-d, pk-e, pk-f, and pk-g, which represent the location of sections A, B, ..., and G, indicating the location of the scratches or deposits. In this way, the user can recognize the details of the abnormal condition of the deposit sections 20a, 20b, ..., 20f and the scratch section 20g, along with their location, by using the magnified partial images pk-a, pk-b, pk-c, pk-d, pk-e, pk-f, and pk-g. In the magnified images pk-a, pk-b, pk-c, pk-d, pk-e, pk-f, and pk-g, the location of the scratch or deposit may be indicated by a circle surrounded by a dashed line, for example, or the scratch or deposit may be indicated by a different color scheme.

[0148] <Diagnostic Processing Procedure> The diagnostic processing procedure in this second embodiment is the same as that described in paragraphs 0087-0095 above, and therefore its explanation is omitted.

[0149] <Effects of the second embodiment> According to this second embodiment, the same effects as the first embodiment can be obtained, as well as the following effects. The information display unit 34 can diagnose abnormalities such as scratches and distortions on the flange surface 7 or the sealing surface 8, and the location of these abnormalities, and present information about the abnormal locations in a visual and intuitive manner.

[0150] <Modifications and Effects> The first and second embodiments include the following modifications. (1) At least one first color may be applied to normal areas other than abnormal areas such as scratches or attached substances, and two or more different second colors may be applied depending on the abnormal areas.

[0151] (2) In the diagnostic information generation step, the length, height, or depth of the abnormal area may be compared with a predetermined judgment criterion, and diagnostic information including judgment information representing the judgment result may be generated, and in the presentation step, the judgment criterion and judgment information may be further presented.

[0152] (3) In the coloring process, a color state image 76 may be generated by coloring with one or more different hues, brightness, or saturations according to the level of abnormality of the abnormal area, and in the presentation process, the level of abnormality may be presented in the information presentation unit using the color state image 76 with one or more differences in hue, brightness, or saturation. In this way, by distinguishing abnormal areas or differences with one or more differences in hue, brightness, or saturation, the recognition of abnormal areas and the degree of abnormality can be improved, and the range of presented content such as the seal surface 8 and its abnormal areas can be broadened.

[0153] (4) In the coloring process, warm colors may be applied to abnormal areas of protrusions where the difference between the diagnostic surface and the reference surface in a direction perpendicular to the reference surface exceeds a threshold, and cool colors may be applied to abnormal areas of recesses where the difference exceeds the threshold. Alternatively, cool colors may be applied to abnormal areas of protrusions where the difference exceeds the threshold, and warm colors may be applied to abnormal areas of recesses where the difference exceeds the threshold.

[0154] (5) In the diagnostic information generation step, diagnostic information may be further generated, including a color state image in which pixels representing normal areas where the difference between the diagnostic surface and the reference surface in a direction perpendicular to the reference surface is within a threshold are assigned a first color, pixels representing abnormal areas with protrusions where the difference exceeds the threshold are assigned a second color, and pixels representing abnormal areas with recesses where the difference exceeds the threshold are assigned a third color. In the presentation step, the color state image 76 representing the abnormal areas using the first, second, and third colors may be presented to the information presentation unit 34.

[0155] (6) The process further includes a contour data acquisition step in which contour data representing contour lines at a specific radial angle of the diagnostic surface is acquired from the difference data, and in the diagnostic information generation step, diagnostic information including the contour data is generated, and in the presentation step, the contour display rk based on the contour data may be further presented to the information presentation unit 34.

[0156] In these embodiments, the diagnostic information generation process includes a color scheme process or a message generation process. However, this color scheme process or message generation process may be performed separately from the diagnostic information generation process, and the color scheme or message may be added to the diagnostic information obtained in the diagnostic information generation process.

[0157] [Third Embodiment] Figure 19 shows a diagnostic processing sequence along with a diagnostic system 24 according to a third embodiment. This processing sequence is an example of a method for presenting diagnostic information, a diagnostic method, or a program according to the present invention. In Figure 19, the same parts as in Figures 2 and 10 are denoted by the same reference numerals.

[0158] In the diagnostic system 24 shown in Figure 19, the server 32 is removed from the diagnostic system 24 shown in Figure 2, and the terminal device 28 constitutes a diagnostic information generation unit equivalent to the server 32, as well as a presentation device that presents the flange medical record 66 and the like.

[0159] The processing sequence of such a diagnostic system 24 also includes, as in the first and second embodiments, a 3D data acquisition step for acquiring 3D data from the flange surface 7, a diagnostic information generation step for diagnosing the seal surface 8, and a presentation step for presenting the diagnostic information. More specifically, the diagnostic information generation step includes a difference step for determining the difference between the diagnostic surface and a reference, and a contour line data generation step for generating contour line data representing the contour line along the diagnostic surface.

[0160] If we associate the processing sequence with such processing steps, the 3D data acquisition step corresponds to acquiring 3D data (S201), transmitting 3D data (S202), receiving 3D data (S203), and reading reference data (S204). The diagnostic information generation step corresponds to generating differential data (S205), generating contour data (S206), diagnosis (S207), and generating flange medical record data (S208). The differential step corresponds to generating differential data (S205), the contour data generation step corresponds to generating contour data (S206), and the presentation step corresponds to presentation (S209).

[0161] To diagnose the sealing surfaces 8 of flanges 6-1 and 6-2, each sealing surface 8 is exposed from the flange fastener 2, and 3D data of the flange surface 7 including the sealing surface 8 (diagnostic surface) is acquired by the 3D scanner 26 (S201). This 3D data is then transmitted to the terminal device 28 (S202), and the terminal device 28 receives the 3D data (S203).

[0162] The terminal device 28 synchronizes with the acquisition of 3D data and reads reference data corresponding to the flange identified in the 3D data from the diagnostic DB 54 (S204). The terminal device 28 then moves to the difference process and generates difference data representing the difference between the diagnostic surface, the seal surface 8, and the reference data (S205). The terminal device 28 then moves to the contour data generation process and generates contour data representing the contour line along the diagnostic surface, the seal surface 8 (S206).

[0163] The terminal device 28 performs a diagnosis using reference data, difference data, or contour data (S207). As described above, this diagnosis includes a process to create diagnostic information that includes abnormal location information indicating abnormal locations where the difference data representing the difference in a direction perpendicular to the sealing surface 8 exceeds a predetermined threshold. For example, this diagnostic information generation process may include a process to generate diagnostic information that includes determination information indicating whether at least one of the lengths, depths, heights of the attached material portions 20a, 20b, 20c, 20d, 20e, 20f, (20g) (=abnormal locations) along the sealing surface 8, which is the diagnostic surface, or the difference of the abnormal location in a direction perpendicular to the sealing surface 8, is within the range of the reference data.

[0164] The terminal device 28 generates flange medical record data, which is an example of diagnostic information, as a result of the diagnosis (S208), and presents the flange medical record 66 to the information presentation unit 34 (S209). This flange medical record 66 is an example of diagnostic information and, as described above, includes abnormality location information indicating abnormal areas on the sealing surface 8. The flange medical record data is stored in the diagnostic DB 54 in a timely manner.

[0165] <Effects of the Third Embodiment> According to this third embodiment, one of the following effects can be obtained. (1) The diagnostic information presentation method, diagnostic system, program, and presentation device according to the present invention can be implemented with only a single terminal device 28, enabling a compact system and improved portability.

[0166] (2) By linking the 3D scanner 26 and the terminal device 28, a diagnostic system 24 can be constructed that has excellent display functions, such as a color display function for abnormal location information representing the abnormal area.

[0167] [Fourth Embodiment] Figure 20 shows a diagnostic system 24 according to the fourth embodiment. In Figure 20, the same parts as in Figure 2 are denoted by the same reference numerals.

[0168] While the first and second embodiments illustrate a single server 32, the fourth embodiment illustrates a configuration including multiple servers 32-1, 32-2, ..., 32-N. Servers 32-1, 32-2, ..., 32-N are not limited to server types such as cloud servers. Each server 32-1, 32-2, ..., 32-N can send and receive data between the terminal device 28 and each server 32-1, 32-2, ..., 32-N via the network 30.

[0169] For each server 32-1, 32-2, ..., 32-N, diverse load sharing is possible, including by region, company, amount of information to be processed, and separation of diagnostic processing and diagnostic DB54.

[0170] <Effects of the fourth embodiment> According to this fourth embodiment, one of the following effects can be obtained. (1) Diagnostic information can be shared among multiple servers, such as the first server 32-1 and the second server 32-2, and functional division of labor such as region, customer, scale, database and presentation processing can be implemented, enabling the construction of a highly functional system. Alternatively, for example, the first server 32-1 may store 3D data, and the second server 32-2 may perform diagnostics on the diagnostic surface based on the 3D data stored in the first server 32-1.

[0171] (2) By setting one of the multiple servers 32-1, 32-2, ..., 32-N as the management server, it is possible to establish a permanent management system for diverse and large-scale diagnostics and their diagnostic information, centered around the management company.

[0172] [Fifth Embodiment] This fifth embodiment includes the following information processing, etc., in addition to the information processing, etc., 1, 2, and 3 shown in the second embodiment. 4. Identifying abnormal areas • Generation of contour or depth information representing abnormal areas • Generation of color scheme information for contour or depth contour information 5. Presentation of diagnostic information • Presentation of diagnostic information using the Frangical Chart

[0173] <Identifying abnormal areas> As previously mentioned, the abnormal or normal areas represented by the differential data Dbi can be identified by their deviation level, for example, by their deviation level, which exceeds the reference level range set based on the reference data Dref. Figure 21A shows contour line information Dcon representing the deposit portion 20a and the damaged portion 20g, with the horizontal axis representing the position of the sealing surface 8 and the vertical axis representing the height h and depth d. This contour line information is exaggerated for the sake of clarity, but this disclosure is not limited to such contour line information. Height h is the degree of height, and depth d is the degree of depth.

[0174] In Figure 21A, the altitude h=h0 is the reference plane 9, which represents the depth d=d0. If the tolerance for the altitude h of the protrusion projecting from the reference plane 9 is Δh, then the allowable altitude hn can be expressed by Equation 1. hn=h0+Δh...Equation 1 Furthermore, regarding the depth d of the recess that extends from the reference surface 9, if the tolerance from the reference surface 9 is -Δd, then the allowable depth dn can be expressed by Equation 2. dn=d0-Δd...Equation 2 In equations 1 and 2, the tolerances Δh and Δd can be either Δh = Δd or Δh ≠ Δd.

[0175] Therefore, when comparing the reference information including the permissible height hn with the attached material portion 20a, the attached material portion 20a exceeds the permissible height hn and reaches a height of h5, so it is identified as an abnormal area. When comparing the reference information including the permissible depth dn with the damaged area 20g, the damaged area 20g exceeds the permissible depth dn and reaches a depth of d5, so it is identified as an abnormal area.

[0176] <Contour information Dhi and depth information Ddi> Figure 21B shows the lengths of the attached material portion 20a and the damaged portion 20g on the X axis and the widths of the attached material portion 20a and the damaged portion 20g on the Y axis, with contour information Dhi representing the attached material portion 20a (where i=0, 1, 2, ..., 5) = Dh0, Dh1, Dh2, Dh3, Dh4, Dh5 and contour information Ddi representing the damaged portion 20g (where i=0, 1, 2, ..., 5) = Dd0, Dd1, Dd2, Dd3, Dd4, Dd5.

[0177] In the contour line information Dcon on the side of the attached material portion 20a, the contour information Dh0 represents the altitude of the reference plane. The contour information Dh1 is represented by connecting points at the same altitude h1 from altitude h0 of the reference plane, and is horizontal cross-sectional information on the convex portion parallel to the reference plane. Similarly, the contour information Dh2 represents horizontal cross-sectional information on the convex portion parallel to the reference plane, representing points at the same altitude of altitude h2, Dh3 represents altitude h3, Dh4 represents altitude h4, and Dh5 represents horizontal cross-sectional information on the convex portion parallel to the reference plane. In other words, this horizontal cross-sectional information indicates the extent and shape of the convex portion in the XY direction, and the intervals between each of the contour information Dh0, Dh1, Dh2, Dh3, Dh4, and Dh5 are proportional to the wall inclination of the convex portion.

[0178] Furthermore, in the contour line information Dcon on the 20g side of the damaged area, the equal depth information Dd0 represents the depth of the reference plane. The equal depth information Dd1 is represented by connecting points at the same depth d1 from the depth d0 of the reference plane, and is horizontal cross-sectional information on a recess parallel to the reference plane. Similarly, the equal depth information Dd2 represents the same depth d2, Dd3 represents the same depth d3, Dd4 represents the same depth d4, and Dd5 represents the same depth d5, and is horizontal cross-sectional information on a recess parallel to the reference plane of the recess. In other words, this horizontal cross-sectional information indicates the extent and shape of the recess in the XY direction, and the intervals between each of the equal depth information Dd1, Dd2, Dd3, Dd4, and Dd5 are proportional to the wall inclination of the recess.

[0179] Furthermore, different hues, brightness, or saturations are assigned to the contour information Dh0, Dh1, Dh2, Dh3, Dh4, and Dh5 representing the attached material area 20a, and the contour information Dd0, Dd1, Dd2, Dd3, Dd4, and Dd5 representing the damaged area 20g, allowing for clear differentiation of abnormal areas through color. As an example of this color scheme, green is assigned to contour information Dh0 and Dh1, yellow to contour information Dh2, orange to contour information Dh3, red to contour information Dh4, dark red to contour information Dh5, green to contour information Dd0 and Dd1, blue-green to contour information Dd2, blue to contour information Dd3, indigo to contour information Dd4, and dark blue to contour information Dd5.

[0180] <Presentation of Information> Regarding the diagnosis and its results, the following should be presented: contour information with different levels of hue, lightness, or saturation as abnormality location information; contour information with different levels of hue, lightness, or saturation as abnormality location information; contour line information Dcon representing the attached material parts 20a, 20b, ..., 20f and the wound part 20g; message information explaining the abnormality location; and result information representing the diagnosis result.

[0181] Server 32 performs a diagnosis using reference data, difference data, or contour data. This diagnosis includes a discrimination step to identify abnormal areas on the diagnostic surface based on the difference between the diagnostic surface and the reference surface, and a step to generate abnormal area information representing the abnormal areas. Specifically, it includes a step to obtain difference information representing the difference between the diagnostic surface and the reference surface by overlaying the diagnostic surface information obtained from the diagnostic surface with the reference surface information. Then, the altitude or depth of the abnormal area is identified by the difference, and contour information representing the same altitude from the reference surface is generated, or depth information representing the same depth from the reference surface is generated. In addition, in the color scheme step, contour information is generated with different hues, brightness, or saturations assigned to different altitudes, or depth information is generated with different hues, brightness, or saturations assigned to different depths. Furthermore, color scheme-altitude contrast information is generated that relates the color scheme of the contour information to altitude, or color scheme-depth contrast information that relates the color scheme of the depth information to depth.

[0182] [Other embodiments] The above embodiments include the following modifications. (1) Each color scheme in the color state image 76 may include white or black in the same or different hues, and the saturation or brightness of the colors may differ.

[0183] (2) In the above embodiment, nine colors are used for the color scheme of the color state image 76, but a color scheme of fewer than nine colors is also acceptable, and it may be presented with a color scheme of 10 or more colors including white, gray, or black.

[0184] (3) The first, second, or third colors described above may be presented with the same hue but with different saturation or brightness, and the second and third colors may be, for example, color schemes with higher saturation or brightness than the first color.

[0185] (4) The first embodiment, the second embodiment, and their variations may be used independently or in combination.

[0186] (5) Regarding the generation of the color state image 76, contour data may be generated by comparing the irregularities such as scratches on the sealing surface 8 or deposits attached to the sealing surface 8 with reference data, and contour data including multiple contours that represent multiple heights or depths in steps or common heights may be generated, and a color-coded display representing the irregularities may be presented for each height or depth of this contour data using a common color scheme.

[0187] (6) Paper media may be used instead of, or in conjunction with, the image display shown in the above embodiments. This paper media displays diagnostic information including abnormal location information that represents abnormal locations on the diagnostic surface, which is determined based on diagnostic surface data that shows the state of the diagnostic surface of the part to be diagnosed. Regarding the generation of this paper media, the above diagnostic system includes a user interface such as a printer, and for example, a paper media displaying the flange medical record 66, which is a printed output, may be presented to the operator, or a paper media containing the flange medical record 66 may be presented to the operator.

[0188] (7) Instead of the configuration shown in the above embodiment, when generating the color state image 76, contour data is generated based on the diagnostic surface data to show the depth or height of irregularities such as scratches or deposits on the diagnostic surface 3 in steps, and a flange medical record 66 is presented that includes a color state image 76 with a common color scheme applied to each height or depth based on the contour data. In this case, the color scale 78 represents the elevation or depth of the diagnostic surface 3. Even with such a configuration, the abnormality level of the diagnostic surface 3 can be presented to the user visually and intuitively.

[0189] (8) In the flange rotation table 74-3 shown in Figure 8B, the judgment result may be obtained by using the allowable angle instead of the reference height. In this case, for example, the rotation angle θ shown in Figure 22 is determined by the measured distance and height from the inner diameter end to the outer diameter end on the diagnostic surface 3. The rotation angle θ corresponds to the inclination of the diagnostic surface 3 with respect to the reference surface 9. As illustrated in Figure 22, if there is a large variation in the measured values, an approximation curve may be drawn using the least squares method or similar to calculate a virtual rotation angle θ. Then, the judgment result of NG or OK is calculated by comparing the measured rotation angle θ without drawing an approximation curve or the virtual rotation angle θ with the upper or lower threshold of the allowable angle.

[0190] (9) In the above embodiment, a case was shown in which a color state image was generated in which one or more different hues, brightness, or saturations were applied to the area determined to be abnormal, and diagnostic information including message information indicating the location of the determined abnormal area was generated, but the invention is not limited to this. This diagnostic information may consist only of message information that suggests an abnormal area.

[0191] As explained above, the most preferred embodiments of the technology of this disclosure have been described, but the scope of the technology of this disclosure is not limited to the above description, and various modifications and changes are possible for those skilled in the art based on the gist of the invention as described in the claims or disclosed in the forms for carrying out the invention. It goes without saying that such modifications and changes are included in the scope of the technology of this disclosure. [Industrial applicability]

[0192] The method for presenting diagnostic information, diagnostic method, diagnostic system, program, presentation device, or paper media of this disclosure can visually and intuitively present defects caused by deterioration of parts such as flange fasteners using different color schemes and text information, present the diagnostic surface of the part and abnormal location information including diagnostic information, and enable users such as workers to visually and intuitively recognize the abnormal location information along with the diagnostic surface of the part, which is beneficial. [Explanation of symbols]

[0193] 2. Flange fasteners 3. Diagnostic aspects 4-1, 4-2 pipeline 6-1, 6-2 flanges 7 Flange surface 8. Sealing surface 9 Reference plane 9-1 1st reference plane 9-2 Second reference plane 10 Gaskets 12 Bolt fastening section 14 bolt through holes 16 volts 17. Orthogonal direction 18 nuts 19 Difference 20a, 20b, 20c, 20d, 20e, 20f Adhered material section Information on attached substances in 20A, 20B, 20C, 20D, 20E, 20F, and 20G. 20g wound area 21. Point of criticism 22 grid lines 24 Diagnostic Systems 26 3D scanners 28 Terminal devices 30 Networks 32, 32-1, 32-2, ..., 32-N Servers 34 Information presentation section 36, 46 processors 38, 48 memory 40, 50 input / output section 42, 52 Communications Department 54 Diagnostic Database 56 Date and time section 58 Equipment Information Department 60 Measurement result section 62 Scratch / Deposition Results Section 64. Strain Result Section 66 Flange Chart 68 Equipment Information Table 70 Measurement Results Table 72 Damage / Adhesion Results Table 74. Strain Result Table 74-1 Radial strain table 74-2 Circumferential strain table 74-3 Flange Rotation Table 76-color state image 78 color scale 78-1 Dark red 78-2 Red 78-3 Orange 78-4 Yellow 78-5 Green 78-6 Blue-green 78-7 Blue 78-8 Indigo 78-9 Dark Blue

Claims

1. A diagnostic method that uses computer information processing to perform a diagnosis, The processing unit performs a generation step in which it uses 3D data representing the shape of the diagnostic surface to be diagnosed and reference data representing predetermined criteria to generate diagnostic information including abnormal location information representing abnormal locations on the diagnostic surface based on the difference between the diagnostic surface and the criteria, The information presentation unit includes a presentation step of presenting the diagnostic information, In the generation process, the processing unit generates abnormal location information representing areas with strain or distortion as abnormal locations based on the first difference, which is the difference between the first standard, which is the standard, and the diagnostic surface, and generates abnormal location information representing areas with scratches or deposits as abnormal locations based on the second difference, which is the difference between the second standard, which is the standard, and the diagnostic surface. The diagnostic method is characterized in that the first criterion is set based on the diagnostic surface when the object to be diagnosed is unused, or when the object to be diagnosed has been repaired, and the second criterion is set based on the diagnostic surface having strain or distortion.

2. In the generation step, a color state image is generated as the abnormal location information, in which the abnormal location is colored with different hues, brightness or saturation according to the abnormality level, The diagnostic method according to claim 1, characterized in that, in the presentation step, the diagnostic information including the color state image and a color scale representing the standard for the abnormal level with respect to the color scheme of the color state image is presented to the diagnostic presentation unit.

3. The diagnostic method according to claim 2, characterized in that in the presentation step, the diagnostic information including the color state image and message information indicating the abnormal location is presented to the diagnostic presentation unit.

4. The object to be diagnosed is the flange, and the diagnostic surface is the flange surface. The color scheme is based on a color-coding standard that is within a range of ±0.01 mm to ±0.2 mm. The diagnostic method according to claim 3, characterized in that, in the presentation step, the diagnostic information further includes contour line data representing a contour line on a specific radial angle of the flange surface or a contour line in the circumferential direction of the flange surface, and is presented to the information presentation unit.

5. A diagnostic information generation unit uses 3D data representing the state of the diagnostic surface of the component to be diagnosed and reference data representing a predetermined standard, and generates diagnostic information including abnormal location information representing abnormal locations on the diagnostic surface based on the difference between the diagnostic surface and the standard. The system includes an information display unit that displays the diagnostic information generated by the diagnostic information generation unit, The diagnostic information generation unit generates abnormal location information representing areas with strain or distortion as abnormal locations based on the first difference, which is the difference between the first standard, which is the standard, and the diagnostic surface, and generates abnormal location information representing areas with scratches or attached substances as abnormal locations based on the second difference, which is the difference between the second standard, which is the standard, and the diagnostic surface, A diagnostic system characterized in that the first criterion is set based on the diagnostic surface when the object to be diagnosed is unused, or when the object to be diagnosed has been repaired, and the second criterion is set based on the diagnostic surface having strain or distortion.

6. A generation function that uses 3D data representing the shape of the diagnostic surface of the part to be diagnosed and reference data representing a reference shape to generate diagnostic information including abnormal location information representing abnormal locations on the diagnostic surface based on the difference between the diagnostic surface and the reference, The computer implements the function of displaying the aforementioned diagnostic information on the information display unit. In the generation function, abnormal location information is generated based on the first difference between the first standard, which is the criterion, and the diagnostic surface, which is the difference, and abnormal location information is generated based on the second difference between the second standard, which is the criterion, and the diagnostic surface, which is the difference, A program characterized in that the first criterion is set based on the shape of the diagnostic surface when the object to be diagnosed is unused, or on the diagnostic surface when the object to be diagnosed has been repaired, and the second criterion is set based on the diagnostic surface having the strain or distortion.

7. A display device that displays diagnostic information in cooperation with a diagnostic system that generates diagnostic information including abnormal location information indicating areas with strain or distortion on the diagnostic surface, based on a first difference which is the difference between the diagnostic surface and a first criterion set based on the diagnostic surface when the diagnostic target is unused or when the diagnostic target is repaired, and an abnormal location information indicating areas with scratches or deposits on the diagnostic surface, based on a second difference which is the difference between the diagnostic surface and a second criterion set based on the diagnostic surface with strain or distortion, and a display device that displays the diagnostic information in cooperation with a diagnostic system, A data input unit into which the diagnostic information is input from the diagnostic system, An information display unit that displays the aforementioned diagnostic information, A presentation device characterized by including

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