JP6544989B2 - Plant construction process change impact assessment device - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a plant construction process influence change evaluation apparatus for evaluating the influence of process change at the time of plant construction.

  In large-scale plant construction and the like, one operation process may affect another operation process due to various factors, so in order to proceed smoothly, it is necessary to grasp them in advance. As related to grasping the influence between such work processes, for example, in Patent Document 1 (Japanese Patent Application Publication No. 2011-253347), a cast-in construction section of a frame to be constructed and equipment installed in the cast-in construction section A technology is disclosed that automatically calculates the period of time in which the device can be carried into the housing based on the positional relationship with and the construction process of the housing.

JP, 2011-253347, A

  By the way, in the field of large scale plant construction such as nuclear power plant, power plant, chemical plant, etc., and in the manufacturing field where large scale assembly work of most parts is required, some work processes may be changed or delayed. In this case, it is important to accurately grasp the influence on other work processes and overall processes, to consider measures, and to prevent or suppress the delay in delivery date.

  However, in the case of large-scale plant construction, etc., since construction is carried out while various types of work are intertwined in a complex manner, it is not sufficient just to consider the relationship between some work processes as in the above-mentioned prior art. The influence of the content change of a certain work process on the whole process can not be suppressed, and there is a concern that the delivery date may be delayed.

  The present invention has been made in view of the above, and it is an object of the present invention to provide a plant construction process change impact evaluation apparatus capable of more reliably grasping and suppressing the influence on the whole process related to the content change of the work process. I assume.

  In order to achieve the above object, the present invention stores a construction process information storage unit that stores information on a plurality of work processes related to construction of a structure to be constructed, and stores three-dimensional shape information of the structure. A dimensional shape information storage unit, a process-3D model link information storage unit for storing a process-3D model link information that is a correspondence between the information on the work process and the three-dimensional shape information, and the plurality of work processes When at least one work schedule is changed, the influence of work schedules on other work processes is calculated based on the information on the work process, the three-dimensional shape information, and the process-3D model link information. And a control unit.

  The influence on the whole process concerning the content change of the work process can be grasped more reliably, and it can be controlled.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows roughly the whole structure of the plant construction process change influence evaluation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the data structure of process database. It is a figure which shows an example of the data structure of 3D model database. It is a figure which shows an example of the data structure of process 3D model link database. It is a figure which shows an example of the data structure of an operation man-hour database. It is a flowchart which shows the whole of construction process change impact evaluation processing in a control part. It is a flowchart which shows physical distance influence calculation processing as process change influence evaluation processing in a physical distance influence calculation part. It is a figure explaining interference of the work space between work processes, and is a figure explaining duplication of a work place. It is a figure explaining interference of work space between work processes, and is a figure explaining duplication of a work period. It is a flowchart which shows the work space interference influence calculation processing as process change influence evaluation processing in a work space interference influence calculation part. It is a flowchart which shows the work space interference influence calculation process regarding the wall surrounding the installation which is installation object. It is a flowchart which shows the work space interference influence calculation processing regarding the ceiling located above the installation which is installation object. It is a flow chart which shows work resource influence calculation processing as process change influence evaluation processing in work space interference influence calculation part. It is a figure which shows an example of the image of the delay propagation by resource restrictions. It is a figure which shows the mode of the process change influence evaluation process displayed on an output device, and is a figure which shows the example of a display before inputting the change of a working process. It is a figure which shows the mode of process change impact evaluation processing displayed on an output device, and is a figure showing an example of a display of a processing result of process change impact evaluation processing when change of a work process is inputted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(1) Overall Configuration FIG. 1 is a view schematically showing the overall configuration of a plant construction process change impact assessment system according to an embodiment of the present invention.

  In FIG. 1, a plant construction process change impact assessment device 100 stores a construction process information database 1 storing information of a plurality of work processes related to construction of a structure to be constructed, and three-dimensional shape information of a structure (3D model ), 3D model link information database 3 storing 3D model link information which is a correspondence relationship between work process information and 3D shape information, 3D model link information database 3, work amount and work man-hour The construction work man-hour information database 4 for storing construction work man-hour information, which is a relationship of (1), the control unit 5 for calculating the influence of changes in work schedules of work processes on other work processes, and a mouse and keyboard , An input device 6 for inputting various information related to the work process, and an output device 7 such as a display screen for displaying a setting screen of the work process or the like and a calculation result It is equipped with a.

(1-1) Process database 1
FIG. 2 is a view showing an example of the data structure of the process database.

  In FIG. 2, in the process database 1 (hereinafter referred to as a process DB 1), a plurality of records are registered in units of work processes included in the overall process plan for construction of a structure to be constructed. In each record, plant ID (IDentification: identifier) 10, building ID 11, work process ID 12, structure type 13, work process name 14, work area 15, work start date 16, work completion date 17, work quantity 18, and The number of workers 19 and the like are set and stored.

  The plant ID 10 is an identifier that represents the name of the plant that is the target of the work process of each record, and a character string such as "P1" is stored.

  The building ID 11 is an identifier that represents the name of a building that is the target of the work process of each record, and a character string such as “B1” is stored.

  The work process ID 12 is an identifier assigned to uniquely identify the work process of each record, and for example, a character string such as “a1-P-1” is stored.

  The structure type 13 indicates the type of a structure to be subjected to the work process of each record, and for example, a letter indicating the name of a structure such as "piping", "electric cable tray", "air conditioning duct" Columns are stored.

  The work process name 14 indicates the name of the work when the work process of each record is described in the process chart etc. For example, "import", "installation", "welding", "concrete placement", etc. The character string of is stored.

  The work area 15 indicates the name of a work area (work area) in which the work process of each record is performed, and for example, a character string such as "area 1", "wall construction area A", or "a1" Stored.

  The work start date 16 indicates the date when the work of the work process of each record is started, and the work completion date 17 indicates the date when the work of the work process is completed. Date data such as "2015/04/01" (year / month / day) is stored in the work start date 16 and the work completion date 17, for example.

The work quantity 18 indicates the quantity of the structure to be subjected to the work process of each record. For example, if the work content is a pipe installation work, a numerical value representing the number of piping parts such as "100" (points) Is stored, and in the case of concrete placement, a numerical value representing the volume of concrete, such as “50” (m ³ ), is stored. In addition, when the unit of the physical quantity allocated to the work quantity 15 is separately defined on a paper surface, a program, or the like, it is possible to handle only numerical values on the database.

  The work number 19 represents the number of workers engaged in the work of the work process of each record, and for example, a numerical value representing the number of people such as “4” (person) is stored.

  For example, the record shown at the top of FIG. 2 is a record for the work process “a1-P-1” performed in the building “B1” of the plant “P1”, and the piping by the worker “4” (person) It can be seen that it relates to the work process of carrying "100" (points) into "Area 1" during the period from "2015/03/01" to "2015/03/30". More specifically, from the record in FIG. 2, four operation steps "a1-P-1", "a1-P-2" are performed as operation steps performed in "area 1" of the operation area in plant "P1". There are “a1-E-1” and “a1-D-1”, and the work start date 16 and the work completion date 17 are set such that these four work processes are performed in this order. I understand that. Furthermore, the work steps (a1-P-2, a1-E-1, a1-, the work contents being "installation" of "pipe", "installation" of "electric cable tray", and "installation" of "air conditioning duct" It can be seen that the work periods of D-1) are set to overlap with each other. In addition, the work quantity “18” of the work processes “a1-P-1” and “a1-P-2” in which the structure type 13 of the work process is “piping” is set to the piping component “100” (point) It can be seen that the number of workers 19 is set to four for the work process “a1-P-1” and three for the work process “a1-P-2”. In addition, “80” (point) is set as the work volume 18 of the work process “a1-E-1” whose work content is “installation” of “electric cable tray”, and the work number 19 is set to “3” (person) The work quantity 18 of the work process “a1-D-1” whose work content is “installation” of “air conditioning duct” is set to “20” (point) and the number of work people is “2” (person) I understand that

(1-2) 3D model database (DB) 2
FIG. 3 is a view showing an example of the data structure of the 3D model database.

  In FIG. 3, in the 3D model database 2 (hereinafter referred to as 3D model DB 2), a plurality of 3D objects (three-dimensional shape information) relating to each part are made in units of individual parts constituting the structure to be constructed. A record has been registered. In each record, a plant ID 10, a building ID 11, a part ID 22, a shape information 23, a coordinate information 24, a structure type 13, a work area 15, and the like are set and stored as information related to the 3D object of each part.

  The plant ID 10 is an identifier that represents the name of the plant that is the operation target of the parts of each record, as in the process DB 1, and a character string such as “P1” is assigned.

  Building ID11 is an identifier showing the name of the building used as the object of work of the part of each record like process DB1, and character strings, such as "B1", are stored.

  The part ID 22 is an identifier assigned to uniquely identify the part of each record, and a character string having a length that can uniquely identify each part is stored. In addition, in FIG. 3, the case where a character string like "S1" and "S2" is stored is illustrated for simplification.

  The shape information 23 indicates the information of the shape of the part of each record, and for example, a character string representing the shape of each part, such as “straight pipe”, “elbow”, and “rectangular parallelepiped” is assigned.

  The coordinate information 24 indicates the spatial position of the part of each record in the work area (work area). For example, when the shape information 23 of the part is "straight pipe" or "elbow", Data representing center coordinates of a circle forming an end face (for example, top and bottom) and its radius is stored. Further, for example, when the shape information 23 of the part is a "rectangular parallelepiped", information (coordinates of end portions of two points) of 12 line segments that constitute each side of the rectangular parallelepiped is stored.

  The structure type 13 indicates the type of the structure formed by the components of each record, as in the process DB 1. For example, the structure type 13 is a structure such as "piping", "electric cable tray", or "air conditioning duct". A string representing the name is stored.

  The work area 15 indicates the name of the work area (work area) in which the components of each record are installed, and, like the process DB 1, for example, "area 1", "wall work area A", or "a1" String is stored.

(1-3) Process-3D model link database (DB) 3
FIG. 4 is a view showing an example of the data structure of the process-3D model link database.

  In FIG. 4, in the process-3D model link database 3 (hereinafter referred to as a process-3D model link DB 3), each operation process included in the entire process plan for construction of a structure to be constructed and its operation process A plurality of records are registered in units of pairs of 3D objects of parts constituting the target structure of. In each record, a plant ID 10, a building ID 11, a work process ID 12, a part ID 22, and the like are set and stored.

  The plant ID 10 is an identifier representing the name of a plant to be a work target of the work process of each record, similarly to the process DB 1 and the 3D model DB 2, and a character string such as "P1" is assigned.

  The building ID 11 is an identifier representing the name of a building to be a work target of the work process of each record, as in the process DB 1 and the 3D model DB 2, and a character string such as “B 1” is stored.

  The work process ID 12 is an identifier assigned to uniquely identify the work process of each record, similarly to the process DB 1 and the 3D model DB 2, and for example, a character string such as “a1-P-1” is stored. Be done.

  The component ID 22 is an identifier assigned to uniquely identify the component of each record, similarly to the 3D model DB 2, and stores a character string having a length capable of uniquely identifying each component. In addition, also in FIG. 4, the case where a character string like "S1" and "S2" is stored is illustrated for simplification.

  From the record illustrated in FIG. 4, the parts used in the work process "a1-P-2" performed in the building "B1" of the plant "P1" are "S1" to "S3", and the work process "a1" The parts used in -D-1 are "S4" and "S5", and the parts used in operation process "a1-E-1" are "S6".

(1-4) Work Effort Database (DB) 4
FIG. 5 is a view showing an example of the data structure of the work effort database.

  In FIG. 5, in the work process database 4 (hereinafter referred to as work process DB 4), a plurality of records are registered in units of work man-hour basis units corresponding to types of work in the work process. In each record, a plant ID 10, a building ID 11, a structure type 13, a work process name 14, a work man-hour basis 44, and the like are set and stored. The type of work is specified by a combination of plant ID 10, building ID 11, structure type 13 and work process name 14.

  The plant ID 10 is an identifier representing the name of a plant to be a work target of the work process of each record, similarly to the process DB 1, 3D model DB 2, process-3D model link DB 3, etc. A character string such as “P1” is assigned. Be

  The building ID 11 is an identifier representing the name of a building to be a work target of the work process of each record, as in the process DB 1, 3D model DB 2, process-3D model link DB 3, etc. A character string such as “B1” is stored Be done.

  The structure type 13 indicates the type of the structure formed by the components of each record, as in the process DB 1 and the process 3D model link DB 3, and, for example, “pipe”, “electric cable tray”, A character string representing the name of a structure such as “air conditioning duct” is stored.

  The work process name 14 indicates the name of the work when the work process of each record is described in the process chart or the like, as in the process DB 1 and, for example, “carrying in”, “installation”, “welding”, A text string such as "concrete placement" is stored.

  The unit number of man-hours of work 44 represents the number of man-hours of work per unit amount of substance in the type of work specified by the combination of the plant ID 10, the building ID 11, the structure type 13 and the work process name 14 A numerical value is stored. For example, in an operation relating to “carrying in” of “piping”, in the case of 1 person / day per 1 piping component, the working manhour unit 44 is “1”. In addition, in FIG. 5, the work man-hour basic unit 44 is shown by symbols, such as "M1" and "M2", for description.

  By the record of FIG. 5, each operation man-hour basic unit 44 of the operation man-hour DB 4 corresponds to the operation process (each record) of the process DB 1 by four of plant ID 10, building ID 11, structure type 13 and operation process name 14. Can be Then, by taking the product of the working man-hour basic unit 44 of each record of the work man-hour DB 4 and the work quantity 18 of the corresponding record of the process DB 1, the work man-hour for each work process can be calculated.

  For example, in the record shown in the second row from the top of FIG. 5, it is understood that the working man-hour basis unit for “installation” of “piping” performed in the building “B1” of the plant “P1” is M2. Further, in the record illustrated in the process DB 1 of FIG. 2, the plant ID 10 is “P1”, the structure type 13 is “piping”, and the work process name 14 is “installation” “a1-P-”. Since there are 2 "and the amount of work items in this work process is 100, the work man-hour of the work process" a1-P-2 "can be calculated as 100 x M2.

(1-5) Control unit 5
In FIG. 1, the control unit 5 controls the operation of the entire construction process change impact evaluation apparatus 100 and implements work process management processing for managing the entire work process. The process DB 1 and 3D model DB 2, process − Physical distance influence calculation unit 51, work space interference effect calculation unit 52, and work resource influence calculation that calculate the influence between each work process based on information from 3D model link DB 3 and work man-hour database (DB) 4 etc. The unit 53 is provided.

  FIG. 6 is a flowchart showing the entire construction process change impact evaluation process in the control unit.

  In FIG. 6, first, the control unit 5 reads the setting of the display range of the process chart of the work process (whole process) (step S100). The setting of the display range of the process chart is preset by the operator using a GUI (Graphical User Interface) configured by the input device 6 and the output device 7. Next, the information of the process, 3D model, and process-3D model link of the read display range is read from the process DB1, 3D model DB2 and process-3D model link DB3 (step S110). Subsequently, in the read work process, the information on the change of the start date and the completion date input by the operator using the input device 6 or the like is read (step S120).

  Here, the order constraint condition of process data is checked (step S130), and it is determined whether there is a work process that violates the order constraint (step S140). The order constraint condition of process data is a constraint on the order of preceding and succeeding processes between work processes, and is preset and attached to each process data.

  If the determination result in step S140 is YES, the work process schedule correction process is performed (step S150), and the process returns to step S130. The work process schedule correction process is, for example, a process that backs up the subsequent work process with a minimum date change amount that eliminates the constraint, or a process that corrects the preceding work process in an accelerated manner, and corrects the correction result. Store in a storage device not shown.

  If the determination result in step S140 is NO, it is determined whether the work process has been changed (step S160), and if the determination result is NO, the process ends. If the determination result in step S160 is YES, the process change impact evaluation process is performed based on each information (step S170), and the process is ended. The process change impact evaluation process is for evaluating the impact of the change of the work process on other work processes, and the physical distance influence calculation unit 51, the work space interference influence calculation unit 52, and the work resource influence calculation unit 53 By at least one, the influence which arises between each work process is calculated based on the information from process DB1, 3D model DB2, process-3D model link DB3, work man-hour database (DB) 4 grade.

(1-5.1) Physical distance influence calculation unit 51
The physical distance influence calculation unit 51 performs physical distance influence calculation processing as one of process change influence evaluation processing, calculates physical distance between work steps, and calculates physical distance based on the calculated physical distance. It is determined whether or not the change of the work process has an influence on other work processes. Here, the physical distance between work processes is the distance between 3D objects of the structure related to each work process, and a plurality of 3D objects of a structure related to each work process (body, equipment, piping, cable tray, duct Etc.) is calculated. For example, when calculating the physical distance between two operation steps A and B, the 3D objects of the structure related to each operation step are extracted one by one, and the distance between the 3D objects is calculated. The distance is calculated for all 3D object combinations between work steps A and B, and the minimum value is defined as the physical distance between the two work steps A and B.

  In addition, in the case of work processes such as installation work of piping, cable trays, and ducts, where a certain structure such as a certain device or wall is installed in order as a starting point, a route such as piping between two work processes. Whether there is a connection relationship, and if there is a route connection relationship, the distance or amount of installation on the route is important in identifying the impact of the schedule change on the work process. Therefore, the physical distance influence calculation unit 51 acquires all 3D objects linked to each of the work processes A and B, and determines the connection relationship of the 3D objects based on the distance between the objects (that is, two objects If the distance between them is zero, it is determined that the objects are connected). Then, this process is comprehensively performed on all work processes, and it is determined whether or not there is a physical connection relationship between the work processes.

  For example, when calculating the distance between two work processes A and B, the following method can be considered. That is, 3D objects connecting two work processes are respectively A1 and B1, and among 3D objects linked to each work process, one having only one 3D object of connection destination is set as an end point of the route . At this time, in the work process A, the route length from the 3D object A1 to a plurality of end points or the average value of the amount of installed objects present on the route is calculated the distance in the work process A, and similarly the distance in the work process B Do. Then, as for the distance between work steps, when work step A is preceded, the distance in work step A is used as the distance between work steps A and B, while work step B is preceded. In this case, the distance in the work process B is used as the distance between the work processes A and B.

  FIG. 7 is a flowchart showing a physical distance influence calculation process as a process change influence evaluation process in the physical distance influence calculation unit. In FIG. 7, it is assumed that a delay occurs on the start date and the completion date of the preceding work process, and an overlap with the work schedule of the subsequent work process occurs.

  In FIG. 7, the physical distance influence calculation unit 51 first selects one unprocessed work process from the changed work processes (step S200). Next, all the other work processes in which the work process and the work period (work schedule) overlap in the work process selected in step S200 are extracted (step S210), and the arrangement data of the 3D object linked to each work process is processed -3D. It is acquired from the model link DB 3 (step S220). Subsequently, a physical distance between work steps is calculated and calculated (step S230), and it is determined whether there is a work step that violates the order constraint (step S240) based on the physical distance. The determination of whether or not there is a work process that violates the order constraint is performed based on the following concept. That is, when there is a connection relationship between work processes A and B, the condition that work process B can be started is that work for a distance between work processes A and B is completed or work process B precedes. It is either connected to another operation process C. Therefore, first, the connection relationship of the work process B is calculated, and it is determined whether there is a work process C connected to the work process B and preceding. If not present, the work process A is obtained by taking the product of the physical quantity corresponding to the distance between the work processes A and B in the work process A and the work man-hour data per unit physical quantity stored in the work man-hour DB 4 The number of work days required from the start date of the work process to the start date of the work process B is calculated. If the required work days exceeds the overlap days of the work processes A and B, the work work B start date is not exceeded. On the other hand, when there is a work process C, it is not necessary to correct the schedule of the work process B unless a delay occurs in the work process C.

  Therefore, if the determination result in step S240 is YES, the work process schedule correction process is performed (step S250), and it is then determined whether there is an unprocessed work process that has been changed (step S260). If the determination result in step S240 is NO, control is passed to step S260. If the determination result in step S260 is YES, the process proceeds to step S200, and if the determination result is NO, the process ends.

(1-5.2) Workspace interference effect calculation unit 52
The work space interference influence calculation unit 52 executes work space interference influence calculation processing as one of the process change influence evaluation processings, and calculates whether or not there is interference in the work spaces of the two work steps and calculates Based on the determined amount of interference, it is determined whether or not the change of the work process has an influence on other work processes.

  FIGS. 8 and 9 are diagrams for explaining the interference of the work space between the work processes, FIG. 8 is a diagram for explaining the duplication of the work place, and FIG. 9 is a diagram for explaining the duplication of the work period.

  As shown in FIG. 8, for example, when the cable trays 81a to 81c are installed in the air above the pipes 82a to 82c, the working spaces 85 of the pipes 82a to 82c and the cable trays 81a to 81c overlap at the same time. I can not work. Therefore, as shown in FIG. 9, for example, when a delay occurs in the work process 91 related to the installation of a pipe and becomes the work process 91a, the influence of the delay of the work process 91 in the work process 92 related to the installation of the cable tray The effect of step 91 a) occurs, and a delay also occurs in the work step 92.

  FIG. 10 is a flowchart showing a work space interference influence calculation process as a process change influence evaluation process in the work space interference influence calculation unit.

  In FIG. 10, the work space interference influence calculation unit 52 first selects one of the work processes (referred to as work process A) whose start date or completion date has been changed (step S300). Next, all other work processes having an overlap with the work schedule of the selected work process are acquired (step S310). In step S310, the number of overlapping days of the work schedule is simultaneously calculated for each work process. Subsequently, an unprocessed one (referred to as a work process B) is selected from the extracted other work processes (step S320).

  Subsequently, 3D object data linked to the work processes A and B are acquired (step S330), and a work space object is created around the 3D object based on each 3D object data (step S340). In creating a workspace object, for example, a workspace object relating to the installation work of equipment and piping relating to a 3D object is generated by a space object having a shape such as a rectangular parallelepiped, a cylinder, or a sphere, and a combination thereof.

  Next, the interference check of the work space object of the work process A and the work space object of the work space B is performed on all combinations (step S350), and the interference is generated for the preceding work process among the work processes A and B. At least one of the total number of objects to be generated, the sum of route lengths, the sum of volumes, and the sum of areas is calculated (step S360). Subsequently, using the calculation result in step S360 and the value of the number of work processes per unit amount of material stored in the work process DB 4, the number of work days required for the installation work of the structure indicated by the interfering object (interference work Calculate the number of days) (step S370).

  Here, it is determined whether the number of work interference days is larger than the number of process overlap days (step S380). If the determination result is YES, the start date and the completion date of the subsequent work process are “work interference days = process overlap It corrects so that it becomes "days" (step S390). If the determination result in step S390 is NO, or if the process in step S390 is completed, it is determined whether there is any other work process that has not been processed (step S400), and if the determination result is NO, step The process proceeds to step S320.

  If the determination result in step S400 is YES, it is determined whether there is an unprocessed work process that has been changed (step S410). If the determination result is NO, the process proceeds to step S300, and the determination result is If YES, the process ends.

  In such work space interference influence calculation processing, for example, when the structure to be constructed is a nuclear power plant or the like, it is necessary to carry in a large facility with a crane or the like before placing the ceiling of each floor. The work schedule of the work process of the frame construction and the work schedule of the work process of the equipment delivery affect each other. Therefore, in order to determine these, it is necessary to calculate the influence of the work space of the work process of a frame construction and the work process of equipment import.

  Therefore, in the work space interference influence calculation process, it is further calculated and calculated whether there is interference in the work space of another work process and the ceiling located above the wall and the equipment surrounding the equipment to be installed. Based on the amount of interference, it is determined whether or not the change of the work process has an influence on other work processes.

  FIG. 11 is a flowchart showing the work space interference influence calculation process regarding the wall surrounding the installation to be installed.

  In FIG. 11, the work space interference influence calculation unit 52 first selects one equipment 3D object, and acquires the center of the equipment object (step 500). Next, a wall object located at the same height (floor) as the selected equipment is extracted (step S510). Specifically, it is determined under the condition that the height (Z-axis direction) of the center point of the facility object is equal to or less than the height of the upper end of the axis parallel bounding box of the wall object and equal to or larger than the height of the lower end. Next, the extracted wall object is projected on the X-Y plane, and the X-Y coordinates of the outline are extracted (step S520). This is the coordinates of both ends if the outline is a line segment, the center point and radius if an arc, and the coordinates of both ends. Next, on the XY plane, a plurality of half straight lines are drawn around the center point as an end point (step S530). For example, this may be adjusted according to the calculation time such as four directions, eight directions, and sixteen directions. Next, the intersection of each half line and the outline is derived (step S540). This is derived by solving a simultaneous equation describing the relationship between the X coordinate value and the Y coordinate value regarding the half line and the outline. Then, among the plurality of intersections existing on each of the obtained half lines, a box object generating an intersection closest to the center point (end point) is extracted (step S550). Thereby, the wall object surrounding the selected facility object can be extracted. Then, if the work process linked to the selected facility object and the extracted wall object is acquired from the process-3D model link DB 3, comparison between the completion date of the work process of the wall and the start date of the loading process of the facility becomes possible. The propagation to the loading process (other work processes) can be calculated if the wall building process (work process) is delayed (if changed).

  FIG. 12 is a flowchart showing the work space interference influence calculation process regarding the ceiling located above the facility to be installed.

  In FIG. 12, the work space interference influence calculation unit 52 firstly extracts an axis parallel bounding box of the facility object and the box object in order to extract the ceiling object which is close to the selected facility object on the X-Y plane. The BB) is projected onto the X-Y plane (step S600), and the intersection of the BB of the facility object and the outline of the BB of the box object on the X-Y plane is calculated (step S610). The box object having the intersection is judged to be close to the facility and extracted (step S620). Next, in order to narrow down in the height direction, the Z coordinate of the upper surface of BB of the facility object is compared with the Z coordinate of the bottom surface of BB of the box object (step S630). A value is extracted that exceeds the Z coordinate value of the top of the axis parallel BB of the facility object, and the absolute value of the difference is minimized (step S640).

(1-5.3) Work resource influence calculation unit 53
The work resource influence calculation unit 53 executes work resource influence calculation processing as one of the process change influence evaluation processing, calculates resources of two work steps, and based on the calculated resources, It is determined whether or not the change affects other work processes. That is, when a change occurs in the work process, the work resource influence calculation unit 53 checks resource constraints such as the filling rate of the storage space before the equipment is carried in and the operation rate of the crane required for the carrying in operation. If the upper limit is exceeded, a warning is displayed by the output device 7 or the like to prompt the operator to take measures.

  FIG. 13 is a flowchart showing work resource influence calculation processing as process change influence evaluation processing in the work space interference influence calculation unit.

  In FIG. 13, the work resource influence calculation unit 53 first selects one changed work process (step S700), and determines the type of resource of the selected work process (step S710). Here, the type of resource is, for example, crane usage time in the case of the loading process, occupancy ratio of the storage space in the case of temporary placement and storage process, etc., and the number of workers in the installation work process.

  Subsequently, resource usage according to each type and resource usage in the whole process are calculated (step S720). For example, the method of deriving the crane use time is as follows. That is, using the coordinate values of the 3D model linked to the work process and the arrangement coordinate values of the crane stored in the 3D model DB 2, allocation is performed so that the crane closest to each 3D object is in charge of loading. Then, the number of 3D objects is converted into work man-hours using the work man-hours stored in the work man-hour DB 4. Next, work man-hours of each 3D object are equalized evenly within a period from the start date to the end date of each work process. For example, if the work process is carried out for 5 days, and the amount of material to be carried in during that time is 100 pipes, level it so that it will be 20 per day. If the working period is 10 days, it will be 10 per day. Finally, the accumulation of operation time (time transition) is calculated by taking the sum for each crane.

  In the case of using a volume, the method of deriving the occupancy of the storage space calculates the volume of the 3D object using a volume calculation function of general CAD, etc., and also stores the data stored in the 3D model DB 1a. Calculate the occupancy rate by calculating the volume of the space object and dividing the former by the latter. On the other hand, in the case of using the area, in the case of equipment, it is stored in the same position as the state after installation, so the bottom area of the axial parallel bounding box may be taken as the occupied area of equipment. In order to do this, it is necessary to estimate the storage attitude.

  The following can be considered as this estimation method. Extract the central line segment of the smallest element (cylindrical or conical shape) that constitutes the 3D object of piping. For the sake of simplicity, we ignore elements such as elbows where the piping route is curved. The central line segment is held as the coordinates of the central point of the top and bottom of a cylinder or cone and a three-dimensional vector connecting them. Then, straight lines (vectors) present on the same plane are classified into the same group. This starts with a component located at the end of the piping 3D object being selected, and sequentially calculates the angle formed by two vectors, and the formed angle becomes 0 or the shortest distance between two straight lines is In the case of 0, it can be determined that the two straight lines are in the same plane. In the case of having an intersection, since they exist on the same plane, when having an intersection, they are classified into the same group.

  As a detailed procedure, first, the component located at the end of the piping object is set as group 1. Next, the next component is selected, and if it is determined that all the components present in group 1 (initially only the components located at the end) are coplanar with the above method, the corresponding components Is added to group 1; otherwise, group 2 is newly created and added. Repeat this sequentially to categorize all components into groups. After classification is complete, the sum of the lengths of the central line segments of the components is calculated for each group, and the group that maximizes it is selected. It is considered that the plane which this group constitutes is a plane which becomes horizontal to the ground when the piping is stored. Then, in order to calculate the occupied area, the diameter of the pipe is the sum of the lengths of the line segments constructed by projecting the line segment connecting the center points of the top surface and the bottom surface on the plane for each component of the pipe object It is good to hang The elbow part is simplified, and the center point of the top and bottom is connected by a line segment, or the point of intersection of the center lines (straight lines) of the cylindrical elements located on both sides is calculated, and the line connecting the center point of the elbow bottom and the point It substitutes for a minute and a line connecting the intersection point and the center point of the upper surface of the elbow.

  The calculation of the accumulation (time transition) of the storage space resources is not equaling the number per day according to the working days like the working time of the crane, but continues to consume the resources for the occupied area throughout the working period Calculate as things. The upper limit value may be calculated by calculating the base area of the 3D object indicating the storage space, or the operator may input in advance via the input device 6.

  Then, it is calculated whether there is a period exceeding the upper limit value (step S730). Thereafter, it is displayed to the operator through the display function of the output device 7 as shown in FIG. If the resource exceeds the upper limit value, it is possible to cope by increasing the resource upper limit value in addition to adjusting the schedule of the work process, so the operator can increase the upper limit value or modify the work process. It shall be judged and performed through the input device 6.

(1-6) Output device 7
The output device 7 has a display function of displaying a setting screen of a work process or the like and a processing result of process change impact evaluation processing.

  FIG. 15 and FIG. 16 are views showing the state of process change impact evaluation processing displayed on the output device, FIG. 15 shows a display example before inputting a change of the work process, and FIG. 18 shows an example of display of the process result of the process change impact evaluation process when the change of is input.

  In FIG. 15, an input unit 801 is a place for inputting a plant name and a building name of a process to be subjected to calculation of delay effects of the process, and can be selected from a plurality of names by pull-down. When the two names are input, a process chart is displayed on the input unit 804. In the process search section of the input unit 801, the operator inputs the process name by the keyboard or displays the work process list in the pull-down, and the operator selects from the list and selects the work process corresponding to the input result. Do. A triangle button located on the right of the process search field is a button for changing the selection state one by one in the order of the order and the reverse order with respect to a plurality of search results. Information is displayed on the input unit 802, which will be described later, and the input unit 804 changes the color and thickness of the operation process bar to emphasize to the operator that the selected operation process is in the selected state. Also, the operator can intuitively select the work process by clicking the work process bar (line) in the input unit 801.

  The input unit 802 is a place for displaying or inputting the name, change type, work schedule before change, and work schedule after change in the displayed process chart. The change type indicates whether the operator has manually changed the work schedule, or has changed according to the change impact calculation result, or only one of the changes. The post-change schedule column may be displayed by the operator using the keyboard to enter the post-change work schedule, or by dragging and dropping the work process bar in the input unit 804 like general process control software. You may.

  The influence calculation execution button is to execute calculation of process change influence, and in the initial state, the input is invalid (a state where input such as click is not accepted), and at least one or more work schedule is changed by the operator When it is turned on, the state transitions to valid (a state in which an input such as a click is received), and once input is received, the state transitions to invalid again. When the button is pressed and the calculation is finished, as shown in the same part of FIG. 16, the process chart of the input unit 804 is replaced with the process chart after the change, and the work process in which the change occurs is before the change. Highlight the operator by comparing and changing the color and thickness of the line.

  The input unit 803 becomes effective after the execution of the change impact calculation, and when there is a change in the work process currently in the selected state, the influence propagation path on the selection step column indicates the change as shown in the same part of FIG. The list of changed work processes (paths, paths) is displayed. When the path is in a selected state, an arrow indicating the path is simultaneously displayed in the process chart of the input unit 804 in a different color or thickness from the other arrows, thereby highlighting the display to the operator. In addition, as shown in the same place in FIG. 16, the influence link column under selection shows the name of one link (propagation of schedule change between two operation steps) in the currently selected state, and the preceding operation steps Display the name of and the name of the subsequent work process. A list of influence links may be displayed and selected in a pull-down format, or an influence link displayed by an arrow on the input unit 804 may be selected by clicking. The influence reason column displays the reason why the influence occurred for the influence link in the selected state, and when calculated by the physical distance calculation unit 51, the specific distance is displayed as a numerical value, and the work space When calculated by the interference influence calculation unit 52, the interference volume of the work space is displayed as a numerical value, or displayed as a character string capable of determining that there is a wall-facility relationship or a facility ceiling relationship. The CAD highlight button displays the 3D model corresponding to the plant and building input in the input unit 801 on 3D-CAD, and changes the color of the 3D object related to the influence propagation path and influence link in the selected state By highlighting it.

(2) Effects The effects of the present embodiment configured as described above will be described.

  In the case of large-scale plant construction such as nuclear power plants, power plants, chemical plants, etc., or in the manufacturing field where large-scale assembly work of most parts is required, some work processes may be changed or delayed. It is important to accurately grasp the impact on other work processes and overall processes, to consider measures, and to prevent or suppress delays in delivery. However, in the case of large-scale plant construction, etc., since construction is carried out while various types of work are intertwined in a complex manner, it is not sufficient just to consider the relationship between some work processes as in the above-mentioned prior art. The influence of the content change of a certain work process on the whole process can not be suppressed, and there is a concern that the delivery date may be delayed.

  On the other hand, in the present embodiment, a construction process information storage unit that stores information on a plurality of work processes related to construction of a structure to be constructed, and a three-dimensional shape that stores three-dimensional shape information of the structure. An information storage unit; and a process-3D model link information storage unit for storing a process-3D model link information that is a correspondence relationship between work process information and three-dimensional shape information; at least one of a plurality of work processes In the case where the work schedule is changed, the influence on the work schedule of the other work processes is calculated based on the work process information, the three-dimensional shape information, and the process-3D model link information. The influence on the whole process related to the content change of the working process can be grasped more reliably and suppressed.

  The present invention is not limited to the embodiments described above, but includes various modifications. For example, the embodiments described above are described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. In addition, each of the configurations, functions, and the like described above may be realized by designing a part or all of them with, for example, an integrated circuit. Further, each configuration, function, etc. described above may be realized by software by the processor interpreting and executing a program that realizes each function.

1 Process database 2 3D model database (3D shape information database)
3 process-3D model link database 4 work man-hour database 5 control section 6 input device 7 output device 100 plant construction process change impact evaluation device

Claims (8)

A construction process information storage unit that stores information of a plurality of work processes related to construction of a structure to be constructed;
A three-dimensional shape information storage unit that stores three-dimensional shape information of the structure;
A process-3D model link information storage unit storing a process-3D model link information that is a correspondence between the information on the work process and the three-dimensional shape information;
When at least one work schedule among the plurality of work processes is changed, based on the information on the work process, the three-dimensional shape information, and the process-3D model link information, other work processes and a control unit to calculate the impact on the work schedule,
The control unit generates a work space including the part according to a part to be worked in each of the plurality of work processes, and the work space of the work process whose work schedule has been changed and another work process According to the present invention, there is provided a work space interference influence calculation unit that calculates the influence of the change of the work schedule of the work process on the work schedule of the other work processes based on the work space interference amount that is a volume where the two interfere with each other. Plant construction process change impact assessment device that features. In the plant construction process change impact evaluation device according to claim 1,
A plant construction process change impact evaluation apparatus further comprising a construction work manhour information storage unit for storing construction work manhour information that is a relationship between the amount of work items and the work manpower. In the plant construction process change impact evaluation device according to claim 1,
The control unit is configured to, based on a physical distance between a structure to be a work target in the changed work process of the work schedule and a structure to be a work target in another work process. A plant construction process change influence evaluation apparatus characterized by comprising a physical distance influence calculation unit that calculates an influence of a work process on a work schedule. In the plant construction process change impact evaluation device according to claim 3,
The physical construction process change influence evaluation apparatus, wherein the physical distance influence calculation unit sets a distance on a route which follows a physical connection point of parts constituting a structure to be constructed as a physical distance. In the plant construction process change impact evaluation device according to claim 1 ,
The work space interference influence calculation unit generates a work space consisting of a rectangular parallelepiped, a cylinder, or a sphere including parts to be worked in the work process, and based on the work spaces, the work spaces obtained by the Boolean operation A plant construction process change impact evaluation apparatus characterized in that a volume that is interfering is a work space interference amount. In the plant construction process change impact evaluation device according to claim 1 ,
The work space interference effect calculation unit
A plant construction process characterized in that the correspondence between a facility installed in a building and a wall surrounding the periphery or the correspondence between a facility and a ceiling located above it is the physical arrangement of the work place Change impact assessment device. In the plant construction process change impact evaluation device according to claim 1,
The control unit defines at least one of a crane use time and a material storage space occupation amount to be provided to the work process as a resource, and the resources of the work process whose work schedule is changed and another work process A plant construction process change impact evaluation apparatus, comprising: a work resource influence calculation unit that calculates an influence on the other work process based on a consumption amount. In the plant construction process change impact evaluation device according to claim 1 ,
The control unit
Work schedule of another work process based on the physical distance between the structure to be worked in the changed work process of the work schedule and the structure to be work in another work process Physical distance influence calculation unit which calculates the influence on
At least one of the crane use time and the material storage space occupancy provided to the work process is defined as a resource, and based on the consumption of the resource of the work process whose work schedule has been changed and another work process And a work resource influence calculation unit that calculates the influence on the other work process,
The display device has a calculation result display unit for displaying at least one of calculation results of the physical distance influence calculation unit, the work space interference calculation unit, and the work resource influence calculation unit. Plant construction process change impact assessment device.

Images