JP2019200452A - Drawing management apparatus, drawing management method, and drawing management program - Google Patents

Abstract

To create a process for as-built on the basis of comparison between a design drawing and a measuring drawing.SOLUTION: A drawing management apparatus according to the present invention includes: a difference detection unit that detects a difference between a design drawing of a device and a measuring drawing obtained by measuring the device; and a process management unit that calculates a man-hour for acquiring the measuring drawing again and a man-hour for inputting the design drawing regarding the device that detects the difference, determines a process for acquiring the measuring drawing again and a process for inputting the design drawing on the basis of the calculated man-hours, and displays the determined processes.SELECTED DRAWING: Figure 15

Description

  The present invention relates to a drawing management apparatus, a drawing management method, and a drawing management program.

  For example, when a plant is newly established, a designer creates a design drawing by a computer graphic technique. The design drawing is also called a CAD (Computer Aided Design) drawing. The contractor creates piping according to the design drawings and installs it on the site. When the construction is completed, the contractor captures an image of piping or the like with a three-dimensional laser scanner or the like, and creates a measurement drawing based on the image. The plant manager collates the design drawing with the measurement drawing to confirm whether or not the piping that should be originally exists at the position where it should be. Usually, the design drawing coincides with the measurement drawing.

  However, when a long time has passed since the establishment of a new plant, expansion and removal of piping and the like frequently occur during that time. Then, there are many cases where the expansion or removal is not reflected in the original design drawing. This tendency is particularly strong when the designer at the time of expansion / removal is different from the designer at the time of new installation. Therefore, “as-built” is required to reflect the current situation of piping etc. in the design drawing.

  The inspection method of Patent Document 1 displays that the inspection result is abnormal when a large difference is detected as a result of comparing and comparing the design data and measurement data of the three-dimensional shape structure. The three-dimensional CAD model creation system disclosed in Patent Literature 2 performs three-dimensional measurement of a plant device to which a tag is attached. The tag stores three-dimensional position data and design specification data (inner diameter, wall thickness, material, etc.). The system acquires a design 3D CAD model for the plant device from the design 3D CAD model storage unit based on the 3D position data read from the tag. The system adds design specification data to the acquired design three-dimensional CAD model, and if the position data of the design three-dimensional CAD model is different from the three-dimensional position data read from the tag, the three-dimensional position data read from the tag The design 3D CAD model is modified based on the above.

  The construction management system of Patent Document 3 compares three-dimensional shape data obtained by measuring the ground on which construction such as embankment and slope formation has been performed with three-dimensional CAD design data created before construction. At this time, the construction management device extracts intersections with, for example, a plurality of cross sections that intersect the center line of the road from each of the three-dimensional finished shape data and the three-dimensional CAD design data so that the reference for comparison becomes clear. To do.

JP 09-133519 A JP 2012-068047 A JP 2012-243036 A

If a difference is found as a result of comparing the design drawing with the measurement drawing, the difference must be reflected in the design drawing. At this time, for example, it is determined which of the plurality of added pipes is to be as built in what order and at what timing. However, Patent Documents 1 to 3 focus on finding the difference, and a separate measure is required to calculate the number of man-hours for as-built processing and create a process.
Therefore, an object of the present invention is to create an as-built process based on a comparison between a design drawing and a measurement drawing.

The drawing management apparatus according to the present invention includes a difference detection unit that detects a difference between a design drawing of a device and a measurement drawing obtained by measuring the device, a man-hour for reacquiring the measurement drawing for the device that has detected the difference, and a design drawing. A process management unit that calculates the man-hours to be input, determines the process of acquiring the measurement drawing again based on the calculated man-hours, and determines the process of inputting the design drawing, and displays the determined process. And
Other means will be described in the embodiment for carrying out the invention.

  According to the present invention, an as-built process can be created based on a comparison between a design drawing and a measurement drawing.

It is a figure explaining the structure of a drawing management apparatus. It is a figure explaining a design drawing and a measurement drawing. It is a figure explaining the detection of a difference. (A) And (b) is a figure explaining man-hour information. It is a figure explaining driving information. It is a figure explaining work information. It is a figure explaining measuring instrument information. It is a figure explaining standard model information. It is a flowchart of an as-built preparation processing procedure. It is a flowchart of a difference detection process procedure. It is a flowchart of a process creation processing procedure. It is a flowchart of an as-built process procedure. It is a figure explaining a difference. It is an example of an initial screen. It is an example of an expansion process drawing. It is an example of a measurement drawing expansion screen.

  Hereinafter, a mode for carrying out the present invention (referred to as “the present embodiment”) will be described in detail with reference to the drawings. The present embodiment is an example of creating an as-built process for parts such as pipes constituting a plant. However, the present invention can also be applied to other devices. Further, the present invention can be generally applied to a site where a plurality of devices are concentrated and arranged even if it is other than “plant”.

(Configuration of drawing management device)
A configuration of the drawing management apparatus 1 will be described with reference to FIG. The drawing management device 1 is a general computer, and includes a central control device 11, an input device 12 such as a keyboard and a touch panel, an output device 13 such as a display, a main storage device 14, an auxiliary storage device 15, and a communication device 16. These are connected to each other by a bus. The auxiliary storage device 15 stores design drawings 31, measurement drawings 32, man-hour information 33, operation information 34, work information 35, measuring instrument information 36, and standard model information 37 (all of which will be described later in detail).

  The difference detection unit 21 and the process management unit 22 in the main storage device 14 are programs. In the following, when the operation subject is described as “XX section”, it means that the central control section 11 reads “XX section” from the auxiliary storage device 15 and loads it into the main storage device 14, and then the processing described later. Means to execute. The drawing management apparatus 1 is usually arranged in a plant management center (not shown) or the like.

  The drawing management device 1 can communicate with a terminal device 3 via a wired or wireless network 2. The terminal device 3 is carried by maintenance personnel who maintain plant equipment on site, and includes an input device 17 such as a keyboard, a touch panel, a code reader, a camera, and a microphone, and an output device 18 such as a display and a speaker. A user of the drawing management apparatus 1 performs input to the drawing management apparatus 1 through either the input device 12 or the input device 17. The drawing management apparatus 1 performs output for the user via either the output device 13 or the input device 18. In the following description, when it is described as the input device 12, it includes the input device 17. Similarly, when describing the output device 13, it also includes the output device 18. The drawing management device 1 also serves as a design device 4 to be described later.

(Design drawings and measurement drawings)
The design drawing 31 and the measurement drawing 32 will be described with reference to FIG. Assume that a group of equipment with a plant is newly established. The device group here includes piping, valves, pumps, and the like of a certain system. A user of the drawing management device 1 creates a design drawing 31 using the design device 4. The design drawing 31 is, for example, three-dimensional CAD (Computer Aided Design) data itself. The user draws, for example, a plurality of points A and B in the three-dimensional virtual space, and connects the points with straight lines. Then, the design device 4 stores “A (X _A , Y _A , Z _A ), B (X _B , Y _B , Z _B ), and a straight line AB”. Here, “(X _A , Y _A , Z _A )” is the three-dimensional coordinate value of the point A, and “(X _B , Y _B , Z _B )” is the three-dimensional coordinate value of the point B. .

Furthermore, it is assumed that the designer has drawn a cylinder P whose bottom surface is a circle with a radius r centered on the point A and whose height is t. Then, the design device 4 stores “P (X _A , Y _A , Z _A , r, t)”. Not only straight lines and cylinders, but all figures in the space are stored as such a set of data. The design drawing 31 appears on the screen as a combination of many lines and surfaces as indicated by reference numeral 31 in FIG.

  The designer can also input a figure into the design apparatus 4 by tracing a photograph of an existing device group. However, here, the designer does not trace a photograph or the like, but newly designs a device group. Therefore, the device group under design work is an assumption that does not involve an entity. The coordinate system of the three-dimensional virtual space may be the same as or different from the coordinate system of the real space (plant building or the like) where the device group is actually arranged. When the two coordinate systems are different, it is defined which point the one origin corresponds to.

  Eventually, the design is completed, and a group of devices is manufactured at the factory according to the design drawing. As a matter of course, the size of the device group is obtained by enlarging the device group on the design drawing with the scale of the design drawing. Then, the equipment group is carried into the plant and placed at a predetermined position. Then, the plant manager images the device group with the three-dimensional laser scanner 5. The measurement drawing 32 is, for example, a three-dimensional image captured at this time. The measurement drawing 32 appears on the screen as a group of many points (point group) as shown in FIG. This point group represents the surface of the device group. Each of the points is derived from an individual pixel on the image projection plane of the three-dimensional laser scanner 5. The pixel not only has a three-dimensional coordinate value in real space, but also has a pixel value in gray scale or color scale. Ideally, the substantial content of the measurement drawing 32 matches that of the design drawing 31.

  The drawing management device 1 acquires a design drawing 31 of the device group from the design device 4 and acquires a measurement drawing 32 of the device group from the three-dimensional laser scanner 5. Thereafter, the drawing management apparatus 1 superimposes the design drawing 31 and the measurement drawing 32 on the output space 13 in the virtual space (see FIG. 3).

(Difference detection)
Difference detection will be described with reference to FIG. In FIG. 3, a design drawing 31 and a measurement drawing 32 (see FIG. 2) are superimposed. Devices existing in both the design drawing 31 and the measurement drawing 32 appear in point groups 41 to 43 surrounded by lines. A device that exists in the design drawing 31 but does not exist in the measurement drawing 32 appears as a line 44 that does not have a point cloud inside. Devices that exist in the measurement drawing 32 but do not exist in the design drawing 31 appear as a point group 45 having no line on the outer edge. These portions 44 and 45 are “difference”.

The cause of the difference 44 is as follows, for example.
-The device to be placed has not been placed yet.
-Once installed, the equipment was subsequently removed.
・ Measuring instrument was forgotten.
・ Even though there was equipment, it was impossible to acquire an image because it was behind another object during measurement.

The cause of the difference 45 is, for example, as follows.
-Equipment that was not assumed at the time of design was added on site.
・ Images of transport carts, tools, etc. that are not constituent elements of the plant were accidentally acquired.

  When the usage period of the device group becomes long, such a difference occurs very much. If the design drawing 31 deviates from the actual situation at the site, for example, examining the layout change using the design drawing 31 and creating a maintenance / update plan will not make sense. Therefore, the designer needs to correct the design drawing 31 for the area detected as the difference. In the present embodiment, this correction is to trace the newly acquired measurement drawing 32 and input the design drawing 31 to the design apparatus 4 again.

(Man-hour information)
The manhour information 33a will be described with reference to FIG. In the man-hour information 33a, the appearance complexity column 102 stores the appearance complexity and the CAD input man-hour column 103 stores the CAD input man-hours in association with the device type stored in the device type column 101.
The device type in the device type column 101 is the type of device, and here is a pipe, an elbow, a pump,...
The appearance complexity in the appearance complexity column 102 is a trouble for the designer to input the appearance of the device by CAD. The appearance complexity increases as the number of surfaces, the number of lines, the ratio of the number of lines, etc. occupied by the curve increases. Here, the numerical values are divided into three ranges of “large”, “medium”, and “small”, but the value itself or the value range may be stored.

  The CAD input man-hour in the CAD input man-hour column 103 is a man-hour per device required for the designer to create a CAD drawing using the design device 4. The CAD input man-hours increase as the appearance of the device becomes more complex. In the present embodiment, the CAD input man-hour is also determined if the device type and appearance complexity are determined. Note that “#” represents different values in an abbreviated manner.

The manhour information 33b will be described with reference to FIG. In the man-hour information 33 b, the space position is stored in the space position column 105 and the measurement man-hour is stored in the measurement man-hour column 106 in association with the space volume stored in the space volume column 104.
The space volume in the space volume column 104 is the volume of the space including the equipment that can be imaged by the three-dimensional laser scanner 5 once.

The space position in the space position column 105 is a position in the vertical direction in the plant of the equipment, and is “high”, “medium”, or “low” depending on the floor number.
The measurement man-hour in the measurement man-hour column 106 is a man-hour for imaging a space using the three-dimensional laser scanner 5. In general, the larger the spatial volume, the higher the spatial position (more safety considerations are required), and the greater the number of measurement steps. Note that “♭” represents different values in an abbreviated manner.
In addition to these, fields such as troublesome preparation for measurement (removal of peripheral leftovers, removal of equipment cover) and the like may be stored. These can also be factors that determine the measurement man-hours.

(Driving information)
The driving information 34 will be described with reference to FIG. In the operation information 34, in association with the device ID in the device ID column 111, the device type column 112 has the device type, the device type 113 has the device type, the system column 114 has the system, and the space position column 115 has the system type. The space position and schedule are stored in the operation day column 116.
The device ID in the device ID column 111 is an identifier that uniquely identifies the device.
The device type in the device type column 112 is the same as the device type in FIG.
The device type in the device type column 112 is a device type, and devices having the same type have the same size and shape.
The system in the system column 114 is the name of the system to which the device belongs.
The spatial position in the spatial position column 115 is the same as the spatial position in FIG. In addition, the space position here may also have the coordinate value of the apparatus in real space.

  The schedule in the operation day column 116 is a rectangle indicating a time zone in which the device will be operated or inspected in the future. In the rectangle, a distinction between operation and inspection (here, “normal operation” and “periodic inspection”) is stored. When equipment is in operation, fuel and the like are often supplied to the equipment. Therefore, it is preferable from a safety aspect to avoid measuring the device with the three-dimensional laser scanner 5 during a period in which the device is operated.

(Work information)
The work information 35 will be described with reference to FIG. In the work information 35, in association with the designer ID stored in the designer ID column 121, the design target system 122 stores the design target system, and the work day column 123 stores the schedule.
The designer ID in the designer ID column 121 is an identifier that uniquely identifies the designer. In this embodiment, it is the designer who originally designed the system that makes the design drawing 31 as-built.
The design target system of the design target system 122 is the name of the system of the equipment designed by the designer.
The schedule in the work day column 123 is a schedule for each day when the designer performs a work other than the design in the future.

(Instrument information)
The measuring instrument information 36 will be described with reference to FIG. In the measuring instrument information 36, in association with the measuring instrument ID stored in the measuring instrument ID column 131, the imaging coordinate value 132 stores an imaging coordinate value, and the reservation date column 133 stores a schedule.
The measuring instrument ID in the measuring instrument ID column 131 is an identifier that uniquely identifies the three-dimensional laser scanner 5.

The imaging coordinate value 132 of the imaging coordinate value 132 is a time-series coordinate value in the real space at the center of the screen imaged by the three-dimensional laser scanner 5. Here, for convenience of space, three-dimensional coordinate values at a certain point in time are representatively shown. The three-dimensional laser scanner 5 can send the time-series imaging coordinate values to the drawing management apparatus 1 in real time or at an arbitrary timing. That is, the drawing management apparatus 1 collates the received imaging coordinate values with the coordinate values written in the spatial position column 115 in FIG. 5 to determine which 3D laser scanner is imaging which device. You can find out at “(None)” indicates that the three-dimensional laser scanner is not used at that time, and “#” indicates a different value in an abbreviated manner.
The schedule in the reservation date column 133 is a schedule for each day when the three-dimensional laser scanner is used for other field work in the future.

(Standard model information)
The standard model information 37 will be described with reference to FIG. In the standard model information 37, in association with the standard model ID stored in the standard model ID column 141, the device type column 142 stores the device type, and the device dimension column 143 stores the device dimensions.

The standard model ID in the standard model ID column 141 is an identifier that uniquely identifies the standard model. The standard model is a model of the appearance of the equipment.
The device type in the device type column 142 is the same as the device type in FIG.
The equipment dimensions in the equipment dimension column 143 are dimensions of a standard model of the equipment. The equipment dimensions here are “diameter” and “thickness” as equipment dimensions of the pipe, and “diameter”, “thickness” and “angle” as equipment dimensions of the elbow. Other device dimensions may be stored for other device types. The drawing management device 1 can draw a device having the device dimensions here in the virtual space of the design device 4.

(As-built preparation procedure)
An as-built preparation procedure will be described with reference to FIG. In the middle of the description, FIG. The following assumptions are made when starting the as-built process.
3D design drawings and measurement drawings have already been acquired and stored in the auxiliary storage device 15 for all devices.
・ It is unknown how much the design drawings reflect the current state of the equipment group.
・ The time when the measurement drawing was acquired is unknown.

  In step S201, the process management unit 22 of the drawing management apparatus 1 displays an initial screen 51 (FIG. 14). Specifically, the process management unit 22 displays the initial screen 51 on the output device 13 (FIG. 1). Thereafter, it is assumed that the user presses the difference detection button 52a.

  In step S202, the difference detection unit 21 of the drawing management apparatus 1 detects a difference. Details of step S202 will be described later as a difference detection processing procedure (FIG. 10). Here, as a result, it is assumed that the difference detection unit 21 detects the presence / absence of a difference between the design drawing 31 and the measurement drawing 32 for all devices.

  In step S203, the difference detection unit 21 displays the difference. Specifically, first, the difference detection unit 21 accepts that the user presses the system diagram button 52b. Then, the difference detection unit 21 displays a list of all systems stored as the operation information 34 (FIG. 5), and accepts that the user selects one of them. Now, assume that the user selects “system A”.

Second, the difference detection unit 21 displays the design drawing 31 of the system A in the design drawing column 53a, the measurement drawing 32 of the system A in the measurement drawing column 53b, and the schematic diagram of the system A in the system diagram column 53c. Display the diagram. Furthermore, the difference detection unit 21 displays the difference detected in step S202 in the measurement drawing column 53b together with the measurement drawing. The solid-line rectangular differences a and b indicate measurement-required equipment (no measurement drawing), which will be described later. The difference c between the dashed rectangles indicates a design-required device (no design drawing) to be described later.
The user can visually recognize the difference between the other systems by selecting another system.

  Now, when the user presses the enlarge button 54b of FIG. 14, the difference detection unit 21 displays the measurement drawing enlarge screen 71 (FIG. 16). In FIG. 16, the measurement drawing and the differences a, b, and c are enlarged and displayed. When the user inputs a search word into at least one of the floor field 72a, the system field 72b, and the equipment field 72c and presses the search button 72d, the difference detection unit 21 receives a measurement corresponding to the search word. View the drawing. When the difference detection unit 21 receives the user's operation of the display rotation object 73, the difference detection unit 21 displays the measurement screen from various angles.

  In step S204, the process management unit 22 of the drawing management apparatus 1 determines a measurement process and a design process. The measurement step is a step of using the three-dimensional laser scanner 5 to re-acquire a measurement drawing indicating the current state of the equipment that is the basis for as-build. The design process is a process of re-creating a design drawing (using CAD input) using the design device 4 based on the measurement drawing acquired again. Details of step S204 will be described later as a process creation processing procedure (FIG. 11). Here, as a result, it is assumed that the process management unit 22 has determined the measurement process and the design process for all devices in which differences have occurred.

In step S205, the process management unit 22 displays the measurement process and the design process. Specifically, first, the process management unit 22 accepts that the user presses the process button 52d.
Second, the process management unit 22 displays the measurement process and design process determined in step S204 in the measurement process / design process column 53d. When the user presses the enlargement button 54c in the measurement process / design process column 53d, the process management unit 22 displays the enlargement process screen 61 (FIG. 15).

Thirdly, the process management unit 22 accepts that the user inputs a search word in at least one of the floor column 62a, the system column 62b, and the device column 62c and presses the search button 62d. Here, it is assumed that the user inputs “system A” in the system field 62b.
Fourth, the process management unit 22 displays a measurement process / design process 63. From the measurement process / design process 63, for example, the following can be understood.

-There are five devices belonging to the system A that need to be built as-is.
For each of these devices, measurement steps (solid rectangles) 64a to 64e and design steps (dashed rectangles) 65a to 65e are displayed.
The measurement process for each device does not overlap in time (the number of three-dimensional laser scanners is limited).
・ The larger the space volume, the longer the measurement process (solid rectangular width).
・ The larger the appearance complexity, the longer the design process (horizontal width of the dashed rectangle).
-For all devices, the measurement process is in time before the design process.
The shaded reference numeral 64d and the reference numerals 64f, 65f, and 66 will be described later.
After step S205, the as-built preparation processing procedure ends.

(Difference detection processing procedure)
The difference detection processing procedure will be described with reference to FIG. In the middle of the description, FIG. The difference detection processing procedure is the details of step S202.

In step S301, the difference detection unit 21 of the drawing management apparatus 1 generates a rectangular parallelepiped including equipment. Specifically, first, the difference detection unit 21 acquires an arbitrary unprocessed device among the devices displayed in the design drawing, and generates a rectangular parallelepiped including the acquired device. At this time, it is assumed that the rectangular parallelepiped has a size enough to include the added equipment when a certain equipment is added to the equipment being processed (extended piping). This rectangular parallelepiped is tentatively generated in a three-dimensional design drawing and may be referred to as a “reference cuboid” hereinafter. And the difference detection part 21 can also cut out the area | region equivalent to a reference | standard rectangular parallelepiped from the three-dimensional measurement drawing.
Second, the difference detection unit 21 superimposes the design drawing on the measurement drawing. Then, in many cases, a point group is added to the surface on the design drawing.

In step S302, the difference detection unit 21 determines whether or not the number of point groups in the rectangular parallelepiped is less than a threshold value. Specifically, first, the difference detection unit 21 counts the number of points in the equipment in the reference cuboid.
Secondly, the difference detection unit 21 proceeds to step S306 if the number of point groups is less than the threshold (step S302 “Yes”), and proceeds to step S303 otherwise (step S302 “No”). The path of step S302 “Yes” corresponds to case 46a in FIG. 13, and the path of step S302 “No” corresponds to case 46b. Incidentally, the case 46a is, for example, a case where the device is once disposed and then removed.

In step S303, the difference detection unit 21 calculates the distance between the point group and the design drawing. Specifically, first, the difference detection unit 21 cuts out a region corresponding to the reference rectangular parallelepiped from the measurement drawing, and acquires a normal vector of points belonging to the point group in the region.
Second, the difference detection unit 21 extends the normal vector until it reaches the surface of the device on the design drawing, and sets the length of the normal vector when reaching the surface of the device on the design drawing as “distance”. calculate. The distance here indicates the distance between the measured point and the device on the design drawing. The distance is calculated for each point belonging to the point group.

  In step S304, the difference detection unit 21 determines whether or not the proportion of points whose distance is equal to or greater than a predetermined threshold is equal to or greater than the threshold. Specifically, first, the difference detection unit 21 determines the number of points whose distance is equal to or greater than a predetermined threshold (a minute value, for example, 1 cm) as the number of all points belonging to the point group in the cut out region. Divide by.

  Second, the difference detection unit 21 proceeds to step S305 if the value of the division result is equal to or greater than a predetermined threshold (for example, “0.5”) (step S304 “Yes”), and otherwise ( Step S304 “No”), the process proceeds to Step S307. The path of step S304 “Yes” corresponds to the case 46c of FIG. 13, and the path of step S304 “No” corresponds to the case 46b or 46d. Incidentally, the case 46c is a case in which, for example, devices are added. Case 46 is a case where the measurement noise looks like a point cloud. Note that the point group of the case 46e is a point group on the measurement drawing. Therefore, in this embodiment, a reference rectangular parallelepiped including the same is not created. However, the case 46e is detected as the case 46c.

  In step S305, the difference detection unit 21 stores design-required devices. Specifically, the difference detection unit 21 sets the “redesign required” flag in the device ID of the reference rectangular parallelepiped device and stores the flag in the auxiliary storage device 15.

  In step S306, the difference detection unit 21 stores measurement-required devices. Specifically, the difference detection unit 21 sets a “re-measurement required” flag in the device ID of the reference rectangular parallelepiped device and stores the flag in the auxiliary storage device 15.

  In step S307, the difference detection unit 21 determines whether there is an unprocessed device. Specifically, when there is an unprocessed device (step S307 “Yes”), the process returns to step S301, and otherwise (step S307 “No”), the difference detection processing procedure is terminated.

  The difference detection unit 21 repeats the processing of steps S301 to S307 for all devices. At the stage where the difference detection processing procedure is completed, the difference detection unit 21 has identified the device that is the target of as-built. A device to be azbilized is a device in which a “redesign required” flag or a “remeasurement required” flag is set.

  A device with a re-measurement required flag is likely to be a “phantom”, and if so, must be deleted from the design drawing. In the present embodiment, the user confirms whether or not it is truly a phantom by looking at the measurement drawing created again. A device with a redesign flag is likely to be a device that has been extended (extended) with another device as a starting point. If so, the additional portion must be added to the design drawing. . In the present embodiment, a measurement drawing representing the current state is created again, and the measurement drawing is traced to correct the design drawing. Eventually, regardless of which flag is set, a measurement drawing is created for the device.

(Process creation procedure)
The process creation processing procedure will be described with reference to FIG. In the middle of the description, reference is made to FIG. The process creation processing procedure is the details of step S204.

  In step S401, the process management unit 22 of the drawing management apparatus 1 lists measurement-required devices. Specifically, the process management unit 22 lists the devices specified by the device ID stored in step S202 (step S306). Now, it is assumed that the floor on which a certain device is arranged is the first floor (lower floor), and the volume of space occupied by this device is 3 ■.

In step S402, the process management unit 22 calculates time required for measurement. Specifically, first, the process management unit 22 refers to the man-hour information 33b (FIG. 4B), and calculates the measurement man-hour “♭” corresponding to the space volume “3” and the space position “low”. Ask.
Secondly, the process management unit 22 multiplies the acquired measurement man-hour by a predetermined conversion coefficient to obtain a measurement required time.
The process management unit 22 repeats the process of step S402 for each device.

In step S403, the process management unit 22 determines a temporary measurement order. Specifically, the process management unit 22 rearranges the devices according to a predetermined standard, and sets the rearrangement order as “measurement temporary order”. The following examples are given as the predetermined reference here.
・ Devices that require longer measurement time are listed first.
・ If the time required for measurement is the same, devices with higher floors are arranged earlier.

  In step S <b> 404, the process management unit 22 lists design-required devices. Specifically, the process management unit 22 lists the devices specified by the device ID stored in step S202 (step S305). Now, it is assumed that the device type of a certain device is “piping” and the appearance complexity is “small”.

In step S405, the process management unit 22 calculates time required for design. Specifically, first, the process management unit 22 refers to the man-hour information 33a (FIG. 4A) and obtains the CAD input man-hour corresponding to the equipment type “piping” and the appearance complexity “small”. To do.
Secondly, the process management unit 22 multiplies the acquired CAD input man-hour by a predetermined conversion coefficient to obtain a design required time.
The process management unit 22 repeats the process of step S405 for each device.

In step S406, the process management unit 22 determines a temporary design order. Specifically, the process management unit 22 rearranges the devices according to a predetermined standard, and sets the rearrangement order as a “design provisional order”. The following examples are given as the predetermined reference here.
・ Devices that require longer design time are listed first.
・ If the required design time is the same, devices with higher appearance complexity are listed first.

  In step S407, the process management unit 22 creates a process chart. Specifically, first, the process management unit 22 reviews the temporary measurement order based on the operation information 34 (FIG. 5) and the measuring instrument information 36 (FIG. 7). For example, the process management unit 22 refers to the measuring instrument information 36 and assigns a date when any measuring instrument (three-dimensional laser scanner) can be used to the device. The process management unit 22 refers to the operation information 34 and assigns a date when “normal operation” and “periodic inspection” do not apply to the device.

Second, the process management unit 22 reviews the design temporary order based on the work information 35 (FIG. 6). For example, the process management unit 22 assigns the device on the day when the designer who designed the system to which the device belongs is not in another business.
Third, the process management unit 22 reconciles the revised measurement temporary order with the revised design temporary order. For example, immediately after the step of creating a measurement drawing for a certain device, a step of creating a design drawing for the device is placed.
Fourth, the process management unit 22 creates a process table based on the temporary measurement order and the temporary design order after review and harmonization.
Thereafter, the process creation processing procedure is terminated.

(As-built process procedure)
The as-built process procedure will be described with reference to FIG. The following preconditions are assumed when starting the as-built process procedure.
• The as-built preparation procedure has been completed.
The user looks at the measurement process / design process column 63 for a certain system (for example, “system A”) on the expansion process screen 61 (FIG. 15).
・ For simplicity of explanation, it is assumed that the user is the designer of “target device” to be described later, and there is no other business corresponding to the work information 35 (FIG. 6) on the day including the present time. .

  In step S501, the process management unit 22 of the drawing management apparatus 1 selects an unprocessed device. Specifically, the process management unit 22 acquires unprocessed devices belonging to the system in order from the earliest start time of the measurement process. The device acquired here may be referred to as “target device” hereinafter.

  In step S502, the process management unit 22 determines whether the measurement process needs to be reviewed. Specifically, first, the process management unit 22 displays a question “Do you need to review the measurement process of the target device?” On the output device 13, and the user answers “Yes” or “ Input of “No” via the input device 12 is accepted. For example, if the measurement process starts too far in the future due to the target device continuing normal operation for a long time, the user inputs “Yes”.

  Second, when “No” is received (step S502 “No”), the process management unit 22 performs highlighting (for example, hatching, reference numeral 64d in FIG. 15) on the measurement process of the target device. Then, the process returns to step S501. If the process management unit 22 receives “Yes” (step S502 “Yes”), the process management unit 22 proceeds to step S503.

In step S503, the process management unit 22 determines whether there is a similar measurement drawing. Specifically, first, the process management unit 22 checks whether measurement drawings of other devices having the same device type as the target device and the same or similar device type have been acquired.
Second, the process management unit 22 proceeds to step S506 if a measurement drawing of another device has been acquired (step S503 “Yes”), otherwise proceeds to step S504. move on.

In step S504, the process management unit 22 determines whether similar equipment can be measured in advance. Specifically, first, the process management unit 22 specifies a device that satisfies the following conditions. A device that satisfies such conditions is called an “alternative device”.
-It has the same equipment type and the same or similar equipment model as the target equipment.
-It is placed near the target device to the extent that it meets the prescribed criteria.
-There is a measurable day (without normal operation and periodic inspection) before the measurement process of the target equipment.
Secondly, the process management unit 22 displays the position of the substitute device in any drawing such as a floor plan on the output device 13.

  In step S505, the process management unit 22 adds a measurement process for similar devices. Specifically, the process management unit 22 adds a measurement process for the alternative device to the process chart created in step S407. Thereafter, the process management unit 22 returns to step S501.

In step S506, the process management unit 22 displays a similar measurement drawing. Specifically, first, the process management unit 22 displays a measurement screen of another device.
Second, the process management unit 22 shortens the width of the measurement process of the target device to a predetermined value, and moves the measurement process to the left of the screen until the next day of the current day (reference numeral 64f in FIG. 15). The measurement process indicated by reference numeral 64f indicates that the measurement process is substantially completed.

  In step S507, the process management unit 22 determines whether or not to manually input the design drawing. Specifically, first, the process management unit 22 displays a question “Do you want to trace the measurement drawing of the target device and input CAD?” On the output device 13, and the user answers “ Input of “Yes” or “No” via the input device 12 is accepted. For example, when a device added to the target device is a widely used standard product, the user inputs “No”.

  Second, if “Yes” is received (step S507 “Yes”), the process management unit 22 proceeds to step S509, and if “No” is received (step S507 “No”), the process management unit 22 proceeds to step S508.

In step S508, the process management unit 22 displays a standard design drawing. Specifically, first, the process management unit 22 displays the standard model information 37 (FIG. 8) on the output device 13 and accepts that the user selects an arbitrary record of the standard model information 37.
Second, the process management unit 22 displays a design drawing on which the standard model of the selected record is drawn on the output device 13. It is assumed that the auxiliary storage device 15 stores design drawings (existing CAD drawings created by the design device 4) for each standard model. Then, the process management unit 22 uses the design drawing displayed on the output device 13 as the design drawing of the target device.

  Third, the process management unit 22 reduces the width of the design process of the target device to a predetermined value, and moves the design process to the left of the screen until the next day of the measurement process (reference numeral 65f in FIG. 15). The design process indicated by reference numeral 65f reminds us that the design process is substantially completed. Thereafter, the process management unit 22 proceeds to step S510.

  In step S509, the process management unit 22 receives manual input of a design drawing. Specifically, the process management unit 22 displays the measurement drawing on the output device 13 and accepts that the user traces the measurement drawing and draws the design drawing.

  In step S510, the process management unit 22 calculates an error. Specifically, the process management unit 22 compares the target device in the design drawing with the target device in the measurement drawing, and calculates an error between them by an arbitrary method. As an arbitrary method, the process management unit 22 may calculate an error based on the “number of points” in “first” in step S302, or the “division value” in “first” in step S304 The error may be calculated based on

  In step S511, the process management unit 22 determines whether the error is equal to or less than a threshold value. Specifically, the process management unit 22 proceeds to step S512 if the error calculated in step S510 is equal to or less than a predetermined threshold (step S511 “Yes”), and otherwise (step S511 “No”). The process returns to step S507.

  In step S512, the process management unit 22 determines whether there is an unprocessed device. Specifically, when there is an unprocessed device (step S512 “Yes”), the process returns to step S501, and otherwise (step S512 “No”), the process proceeds to step S513.

  In step S513, the process management unit 22 displays an error distribution. Specifically, the process management unit 22 displays the error acquired in step S510 (the minimum value immediately before passing through “Yes” in step S511) on the output device 13 as a histogram. Thereafter, the as-built process procedure is terminated.

(Modification 1)
For convenience of explanation, the above-described steps S507 to S511 are targeted for cases where similar measurement drawings already exist. However, steps S507 to S511 can be applied when a design drawing is created again (CAD input) after the measurement drawing of a future device is acquired again. Eventually, the user (designer) can repeat the CAD input or the template diversion by himself / herself for all the devices that need to be built, and the error between the design drawing and the measurement drawing can be made less than the threshold value. .

(Modification 2)
After waiting for the measurement drawing to be acquired again, the designer performs CAD input. If the designer can know the operating state of the measuring instrument (three-dimensional laser scanner), it is convenient to prepare for CAD input. As described above with reference to FIG. 7, the process management unit 22 of the drawing management apparatus 1 displays the balloon 66 (FIG. 15) that indicates which measuring device has captured which device at which point in the past or present. . The balloon 66 indicates that “the measuring instrument M01 was imaging the pipe P01 at a certain point in January”. When the user clicks on the balloon 66, the process management unit 22 enlarges and displays the January calendar, and displays the date to which the tip of the balloon 66 corresponds.

(Effect of this embodiment)
The effects of the drawing management apparatus of this embodiment are as follows.
(1) The drawing management apparatus can display a process of filling in the difference between the design drawing and the measurement drawing.
(2) The drawing management apparatus can calculate the man-hour for measuring the device according to the volume of the device corresponding to the difference.
(3) The drawing management apparatus can calculate the man-hour for designing the device according to the appearance complexity of the device corresponding to the difference.
(4) The drawing management apparatus can manage the work progress of the measuring instrument.
(5) The drawing management apparatus can determine a device to be measured instead of a device to be measured.
(6) The drawing management apparatus can minimize an error between the inputted design drawing and measurement drawing.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

Each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit. Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, and files for realizing each function can be stored in a recording device such as a memory, a hard disk, an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.
Further, the control lines and information lines are those that are considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. In practice, it may be considered that almost all the components are connected to each other.

DESCRIPTION OF SYMBOLS 1 Drawing management apparatus 2 Network 3 Terminal apparatus 4 Design apparatus 5 Three-dimensional laser scanner 11 Central control apparatus 12 Input apparatus 13 Output apparatus 14 Main storage apparatus 15 Auxiliary storage apparatus 16 Communication apparatus 21 Difference detection part 22 Process management part 31 Design drawing 32 Measurement drawings 33 Effort information 34 Operation information 35 Work information 36 Instrument information 37 Standard model information

Claims (8)

A difference detection unit for detecting a difference between a design drawing of the device and a measurement drawing obtained by measuring the device;
For the device that has detected the difference, calculate the man-hour to acquire the measurement drawing again, and the man-hour to input the design drawing,
Based on the calculated man-hours, determine again the step of acquiring the measurement drawing, and the step of inputting the design drawing,
A process management unit for displaying the determined process;
A drawing management apparatus comprising: The process management unit
Based on the volume and position of the device, calculating the man-hours for acquiring the measurement drawing again,
The drawing management apparatus according to claim 1. The process management unit
Calculating man-hours for inputting the design drawing based on the type and appearance complexity of the device;
The drawing management apparatus according to claim 2. The process management unit
Managing the equipment to be measured by the measuring instrument and the work progress of the measuring instrument;
The drawing management apparatus according to claim 3. The process management unit
Determine the equipment that can be measured instead of the equipment that should be measured,
Displaying the position of the device that can be the measurement target;
The drawing management apparatus according to claim 4. The process management unit
Determining the template so that an error between a template of a design drawing prepared in advance for the device and a measurement drawing of the device satisfies a predetermined standard;
The drawing management apparatus according to claim 5. The difference detection unit of the drawing management device
Detect the difference between the device design drawing and the measurement drawing that measured the device,
The process management unit of the drawing management device is:
For the device that has detected the difference, calculate the man-hour to acquire the measurement drawing again, and the man-hour to input the design drawing,
Based on the calculated man-hours, determine again the step of acquiring the measurement drawing, and the step of inputting the design drawing,
Displaying the determined process;
A drawing management method for a drawing management apparatus. For the difference detection unit of the drawing management device,
A process for detecting a difference between a device design drawing and a measurement drawing obtained by measuring the device;
For the process management unit of the drawing management device,
For the device that has detected the difference, calculate the man-hours for acquiring the measurement drawing again, and the man-hours for inputting the design drawing,
Based on the calculated man-hours, a step of acquiring the measurement drawing again, and a step of inputting the design drawing are determined,
Causing the process to display the determined process;
A drawing management program for causing a drawing management apparatus to function.