Construction unified management system

Abstract

To provide a construction unitary management system which manages constructions scattered in a facility while associating a content of each construction with a site where the construction is implemented.SOLUTION: In a construction unitary management system, a management server creates, on the basis of a user operation for selecting a desired construction and plotting the construction site on the drawing, a drawing having a construction index for displaying, on a drawing, construction specifying items which specify a selected construction and a lead-out line connecting the construction specifying items and the construction sites. In the management server, control means extracts, on the basis of the user operation, the construction specifying items from the management items recorded on storage means, and determines a magnitude for displaying them on the drawing, and determines positions for arranging the construction specifying items and lead-out line on the drawing, and display means creates a drawing having the construction index with the construction specifying items and lead-out line displayed on the drawing, and displays it as a construction related document.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a centralized construction management system that manages details of construction work, such as the construction and repair of buildings and structures, by linking them to the location of the work. [Background technology]

[0002] In order to maintain and preserve buildings, structures, and other facilities such as buildings, schools, hospitals, research institutes, factories, and homes, it is necessary to carry out repairs and replacements of old or damaged parts of these facilities, as well as various related periodic inspections, etc. Such construction work is carried out in various locations throughout the facility, and it is more efficient to manage them all together.

[0003] As a method for managing documents for managing facilities, for example, JP 2018-124680 A (Patent Document 1) discloses an invention that devise a method for accessing documents. However, there are no prior art documents that describe a method for collectively managing construction projects scattered throughout a facility. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2018-124680 Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, the present disclosure provides a centralized construction management system that can manage construction work scattered throughout a facility by linking the content of each construction work to the location where the construction work is being carried out. [Means for solving the problem]

[0006] A system according to one aspect of the present disclosure is configured as follows: That is, in a centralized construction management system that manages the location of a construction project by linking it to its content (excluding the location), the system has storage means for recording a plurality of management items that indicate the content of the construction project, including the location of the construction project, display means for displaying construction-related documents, and control means for controlling the storage means and the display means and performing calculations, the system is characterized in that, in creating a drawing with a construction heading that displays on the drawing a construction specification that identifies the selected construction project and a leader line connecting the construction specification and the construction location based on a user operation in which a user selects a desired construction project and plots the construction location on a drawing, the control means extracts the construction specification from the management items recorded in the storage means and determines the size at which to display the construction specification on the drawing and determines the position on the drawing at which to place the construction specification and the leader line, and the display means creates a drawing with a construction heading that displays the construction specification and the leader line on the drawing.

[0007] One aspect of the present disclosure is a centralized construction management system that has a storage means for recording a plurality of management items that indicate the content of the construction work, including the location of the construction work, a display means for displaying construction-related documents, and a control means for controlling the storage means and the display means and performing calculations, and that manages the location of the construction work by linking it to the content of the construction work (excluding the location), in which a user selects a desired construction work and plots the construction location on a drawing, and based on the user's operation, creates a drawing with a construction heading that displays on the drawing a construction specification that identifies the selected construction work and a leader line connecting the construction specification and the construction location, the control means extracts the construction specification from the management items recorded in the storage means based on the user's operation and determines the size at which to display the construction specification on the drawing, and determines the position on the drawing at which to place the construction specification and the leader line, and the display means creates a drawing with a construction heading that displays the construction specification and the leader line on the drawing, making it easy to confirm where construction work being carried out with specified content is located, and facility operators can easily grasp the construction location. It will also improve the convenience of managing building construction work, such as making it easier to formulate construction plans to prevent problems such as different construction work overlapping at the same location. The construction-related documents refer to various documents, drawings, photographs, etc. related to the construction, including construction management documents, drawings including drawings with construction headings, and photo management sheets.

[0008] One aspect of the present disclosure is a centralized construction management system in which, based on a user operation in which the user selects another desired construction project from the construction heading drawing and plots the construction location on the drawing, the control means cancels the placement of the existing construction specifications and the existing leader lines already displayed on the construction heading drawing, and re-determines the positions on the construction heading drawing of the existing construction specifications and the existing leader lines, along with the construction specifications of the other construction project and their leader lines, and the display means creates another construction heading drawing in which these construction specifications and leader lines are displayed on the construction heading drawing.

[0009] One aspect of the present disclosure is a centralized construction management system in which, based on a user operation in which the user selects a desired other construction project from the construction heading drawing and plots the construction location on the drawing, the control means cancels the placement of the existing construction specifications and the existing leader lines already displayed on the construction heading drawing, and re-determines the positions of the existing construction specifications and the existing leader lines on the construction heading drawing, along with the construction specifications of the other construction project and their leader lines, and the display means creates another construction heading drawing in which these construction specifications and leader lines are displayed on the construction heading drawing.Therefore, even if new construction occurs or if a new other construction project is to be marked on the drawing, the construction specifications and construction location of the new construction project can be displayed on the existing construction heading drawing without overlapping with the existing construction specifications.

[0010] One aspect of the present disclosure is a centralized construction management system that displays the construction-specific items outside the area where the diagram on the drawing is shown. One aspect of the present disclosure is a centralized construction management system that displays the construction-specific items outside the area where the diagram on the drawing is shown, so that the construction details can be displayed without compromising the display content of the diagram on the drawing.

[0011] One aspect of the present disclosure is a centralized construction management system in which, based on user operations such as plotting on construction-specific items on the drawing with construction headings, the control means identifies a construction management document that displays the contents of the construction identified by the construction-specific items, and the display means displays the construction management document, thereby linking and managing the construction and the drawing with construction headings.

[0012] In one aspect of the present disclosure, the control means identifies a construction management document that displays the details of the construction identified by the construction specification items based on user operations such as plotting on the construction specification items on the construction heading drawings, and the display means displays the construction management document, thereby providing a centralized construction management system that links and manages the construction and the construction heading drawings.This makes it easy to refer to the drawing showing the location of the construction from the construction management document that displays the details of the construction, and conversely, it is easy to refer to the construction management document that displays the details of the construction from the drawing showing the location of the construction.This makes it easy to identify the construction site and the details of the construction.

[0013] One aspect of the present disclosure is a centralized construction management system in which, for a photo management form, which is a document separate from the construction management manual and displays photographs related to the content of the construction, based on user operation on a link field provided in the construction management manual, the control means calls up the management items necessary for creating the photo management form from the storage means, and the display means displays the photo management form, thereby linking the photo management form to the construction management manual and managing it.

[0014] In one aspect of the present disclosure, a photo management form, which is a separate document from the construction management manual and displays photographs related to the content of the construction, is configured such that, based on a user's operation on a link field provided in the construction management manual, the control means calls up the management items necessary for creating the photo management form from the storage means, and the display means displays the photo management form, thereby linking the photo management form to the construction management manual and managing it, thereby making it possible to manage the photo management form as part of the construction content. Furthermore, many types or volumes of construction-related information can be stored in the photo management form separately from the construction management manual. [Effects of the Invention]

[0015] According to the centralized construction management system disclosed herein, the content of each construction project scattered throughout a facility can be managed by linking it to the location where the construction project is being carried out. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a system configuration diagram of a centralized construction management system. [Figure 2] FIG. 2 is a block diagram showing the functional configuration of a management server. [Figure 3] FIG. 1 is a schematic diagram of a construction management document. [Figure 4] FIG. 1 is a schematic plan view of a building. [Figure 5] FIG. 1 is a schematic diagram of a photo management form. [Figure 6] This is a schematic plan view of Figure 4 with construction specifics and a drawing with construction headings. DETAILED DESCRIPTION OF THE INVENTION

[0017] The centralized construction management system of the present disclosure will be described in detail below. This system is a system that links the details of each construction project to the location where the construction project is to be carried out (construction site) and manages them for repairs and parts replacement for the construction, maintenance, and preservation of facilities such as buildings and structures, including buildings, schools, hospitals, research institutes, factories, and homes, or the equipment and the like provided in these facilities (hereinafter collectively referred to as "facilities, etc."), as well as for surveys for such construction projects and various other construction projects (hereinafter collectively referred to as "construction projects").

[0018] <System configuration> 1 is a system configuration diagram of a centralized construction management system 10. This centralized construction management system (hereinafter also referred to as the "system") 10 is configured to include a management server 1, facility operator terminals 2 (2a, 2b, ...) used by the owner of a facility such as a building who is responsible for the maintenance and conservation of the facility (hereinafter referred to as the "facility operator"), constructor terminals 3 (3a, 3b, ...) used by those responsible for on-site construction of the facility, such as those involved in construction work that requires on-site work (hereinafter collectively referred to as "on-site construction") to maintain and maintain the facility, and management companies that coordinate those construction operators (hereinafter collectively referred to as the "constructors"), and a system manager terminal 4 (4a, 4b, ...) used by the manager of the entire system (hereinafter referred to as the "system manager"), all of which are connected to each other via a network 5.

[0019] The management server 1 receives instructions from various terminals 2, 3, and 4 via a network 5 and performs processing in accordance with those instructions. The management server 1 is configured with a central processing unit (CPU) that functions as a calculation device or control device, a main memory device such as RAM, an external memory device such as a hard disk or SSD, a communication device such as a modem, computer programs, etc. These components make up the functional blocks described below.

[0020] The management server 1 may be a computer management server connected to a network other than the various terminals 2, 3, and 4, or may be a management server that also serves as the computer of the system manager terminal 4. Furthermore, it may be a cloud management server used in cloud computing.

[0021] The facility operator terminal 2 is a computer used by the facility operator, and may be one or more computers 2a, 2b, etc. This facility operator terminal 2 is configured with a communication device that can connect to and communicate with a network such as an in-house LAN or the Internet, and when it starts a program and connects to the network, it can retrieve and display data stored in the management server 1, send data entered through an input device to the management server 1, and receive data from the management server 1 and output it in the form of email or the like through an output device. The computer that serves as this facility operator terminal 2 may be a so-called personal computer, or may be a mobile phone terminal, tablet terminal, etc.

[0022] The constructor terminal 3 is a computer used by a person in charge of on-site construction of a facility, etc., and can be one or more computers 3a, 3b, etc. This constructor terminal 3 is configured with a communication device that can connect to and communicate with a network such as an in-house LAN or the Internet, and when a program is started and connected to the network, it can retrieve and display data stored in the management server 1, send data entered through an input device to the management server 1, and receive data from the management server 1 and output it in the form of email or the like through an output device. The computer that serves as this constructor terminal 3 can be a so-called personal computer, as well as a mobile phone terminal, tablet terminal, etc.

[0023] The system manager terminal 4 is a computer used by the system manager, and can be one or more computers 4a, 4b, ... This system manager terminal 4 is configured with a communication device that can connect to and communicate with a network such as an in-house LAN or the Internet, and when it starts a program and connects to the network, it can retrieve and display data stored in the management server 1, send data entered through an input device to the management server 1, and receive data from the management server 1 and output it in the form of email or the like through an output device. The computer that serves as this system manager terminal 4 can be a so-called personal computer, or it can be the management server 1.

[0024] In this specification and claims, the term "user" refers to any or all of the facility operator, construction worker, and system manager.

[0025] Fig. 2 is a block diagram showing the functional configuration of the management server 1. As shown in Fig. 2, the management server 1 has a control means 11, an ID recognition means 12, a storage means 13, a display means 14, and other means 15 such as a communication means. The control means 11 controls the various means described below to operate them so as to perform their functions, selects and extracts necessary data from the various data recorded in the memory means 13, classifies them into specific items according to the purpose, and performs calculations such as aggregation.

[0026] The ID recognition means 12 has the function of identifying predetermined ID information for identifying persons who can access the system 10, and more specifically, in response to an access request from various terminals 2, 3, 4 to the system 10, it determines whether or not the person has access rights, and if so, the extent of the access rights or what the access rights are for. For example, an access request from the facility operator terminal 2 is permitted if the facility to be accessed is subject to the requester's management, but is not permitted if the facility is not the facility to be accessed. Also, an access request from the construction worker terminal 3 is permitted if the facility to be accessed is a construction target of the requester, but is not permitted if the facility is not the facility to be accessed. An example is where the presence or absence of access permission is determined based on a password.

[0027] The storage means 13 has the function of recording the facility name, location, construction date, and various other elements (multiple elements that represent the content of the construction including the location of the construction) that need to be recorded when carrying out construction work for the construction, maintenance, and conservation of facilities, etc., as management items, and providing them as a management item database. The display means 14 displays the management items recorded by the memory means 13 and construction-related documents obtained by the control means 11 through calculations and other processing on various terminals 2, 3, and 4, outputs them as reports, and also displays input screens on various terminals.

[0028] In addition to the above, the management server 1 can be provided with various other functions such as an alert generation means for observing abnormal values ​​and issuing an alert, and a communication means for transmitting various outputs such as alert information and reports to various terminals that are output targets, such as the facility operator terminal 2 and the construction operator terminal 3.

[0029] <System Functions> The centralized construction management system 10 can create, display, or use documents (including files) described below to manage the content of individual construction works by linking them to the location of the facility where the construction work is being carried out.

[0030] (1) Construction Management Document A construction management manual is a document that shows the details of construction work, such as the construction of new facilities, repairs and replacements of old or damaged parts of facilities, maintenance, and various periodic inspections and surveys related to these. More specific details of the work include the items (management items) necessary to describe the work, such as the management number of the work, the name of the work, the name and condition of the facility that will be the subject of the work, measures, the location where the work will be carried out, the management source where the work will occur, the date of installation, whether the work needs to be carried out, the cost of the work, notes, and others.

[0031] An example of a construction management document is shown in Figure 3. The construction work described in the construction management document 20 shown in Figure 3 is wallpaper replacement work on the first floor of the XX Cultural Center, and the following description is made in response to the above items. The management source where the work will occur is "Business plan," the management number for the work is "B-13," the name of the work is "wallpaper replacement work," the name of the facility where the work will be performed is "XX Cultural Center," the location where the work will be performed is "1st floor, Japanese-style room," the condition of the facility where the work will be performed is "Conspicuous dirt in places,...," the solution is "Complete wallpaper replacement," the necessity of the work is "Proceed," the estimated cost is "120,000 yen," and the remarks are "Attached document XX." Some of the above management items are shown in Figure 3.

[0032] In this way, by creating a construction management manual 20 for each construction project, all the matters necessary for one construction project can be managed in one document called the construction management manual 20, and the contents of that construction project can be found by referring to this construction management manual 20.

[0033] (2) Drawings Among the various items indicating the details of construction work, it is useful to use drawings to identify the construction site. This is because it is necessary to identify the locations where work related to repairs, replacements, and maintenance of old or damaged parts of facilities, as well as various related regular inspections and surveys, will be carried out. For example, drawing 30 shown in Figure 4 displays a diagram (schematic floor plan) 31 of the first floor of the aforementioned XX Cultural Center. Although details are omitted in this drawing 30, it also shows the open / closed status of doors in each room, as well as fixtures such as pillars, air conditioners, bookshelves, and cupboards.

[0034] (3) Photo management form In some cases, information about a construction project may be recorded separately from the construction management manual as a document showing the details of the project. For example, if photographs related to the construction project are taken on-site, or comments about the situation that differ from those shown in the construction management manual are left, these items should also be included as part of the management. However, if such items are overwritten in the construction management manual, it becomes necessary to manage the changes in content, and if too many items are added, the volume of the construction management manual for each project will differ, making it difficult to manage. Therefore, we created a separate document called a photo management sheet, which provides a means to record the details of the project separately from the construction management manual and drawings that have already been created.

[0035] Figure 5 shows a schematic diagram of an example of a photo management form 40. In Figure 5, reference numeral 41 indicates the management number of the work, reference numeral 42 indicates the name of the place where the work will be carried out, such as a Japanese-style room or a Western-style room, reference numeral 43 indicates the heading of the work target, such as wallpaper replacement, air conditioner repair, tatami mat replacement, maintenance work, etc., and reference numeral 44 indicates various comments such as late arrival of parts. Photographs of the work target, such as walls, air conditioners, tatami mats, tiles, the condition of the work site where the work will be carried out, the current state before the work, and parts to be used for replacement or repair are pasted in the frames shown as photos 1 to 4.

[0036] <System Functions> The centralized construction management system 10 contributes to the management of various construction works by creating, displaying or using the documents described above. An embodiment of the system will be described below.

[0037] 1. Preparation of construction management documents When the facility operator inputs specific items to be written in each item of the construction management document from the facility operator terminal 2 through an input form previously created by the display means 14, the input items are recorded as management items by the storage means 13, and the construction management document 20 is accumulated in the record database. Then, in accordance with the facility operator's instruction to create the construction management document from the facility operator terminal 2, the control means 11 calls up the items recorded as each item in the storage means 13, and the display means 14 outputs the construction management document in a format such as that shown in Fig. 3, for example.

[0038] More specifically, the instruction to create a construction management document is an instruction to view or print the construction management document, and in response to a viewing instruction, the display means 14 displays the construction management document on the display of the facility operator terminal 2, and in response to a printing instruction, the control means 11 prints the construction management document created by the display means 14 via the printer of the facility operator terminal 2.

[0039] 2. Create and upload drawings The drawings 30 can be drawings created in advance by the user (the facility owner or contractor of the centralized construction management system 10) using general-purpose drawing software such as CAD. Alternatively, a specific application such as CAD can be installed in the system 10, and drawings can be created from the system 10 in conjunction with that application. Drawings created using other drawing software can be uploaded to the system 10 by the contractor using drag-and-drop or other methods from the contractor terminal 3 via an input form previously created by the display means 14. To import such drawings, the control means 11 reads the file format of the drawing dropped at the specified paste location, i.e., whether it is a raster format such as BMP, GIF, JPEG, PNG, or TIFF, or a drawing format such as EPS, PDF, or AI, and records the file in the recording database of the storage means 13 according to the file format. The control means 11 can also store drawings created through applications linked to the system 10 in the recording database of the storage means 13.

[0040] 3. Creating a photo management form A user who is a facility owner or a construction worker calls up the photo management form creation screen through their respective terminals 2 and 3, and inputs specific items to be recorded on the photo management form through an input form that has been created in advance by the display means 14. In addition, photos taken with a smartphone or the like can be uploaded through the input form. The control means 11 recognizes the input items as each management item and stores them in the recording database by recording them in the storage means 13. Uploading photos can also be done using the same mechanism as uploading drawings. Then, in accordance with instructions from the user to create a construction management document from various terminals 2 and 3, the control means 11 calls up the items recorded as each item in the storage means 13, and the display means 14 creates a photo management form 40 in a format such as that shown in Figure 5.

[0041] 4. Assignment of construction-specific information such as control numbers to drawings In order to link the construction management manual 20, which shows the details of each construction project, with the location of each project within the facility, construction-specific items, such as the control number contained in the construction management manual 20, which identify the project, can be added to the facility's drawing 30. For example, if the control number is displayed on the drawing 30, one construction project corresponds to one construction management manual, and one control number is assigned to each construction management manual. Therefore, the contents of a particular construction project can be found by starting with the control number assigned to the construction location. Figure 6 shows an example of a drawing 50 with a construction heading, on which construction-specific items 51, such as control numbers, are added to the drawing 30.

[0042] In order to create a drawing 50 with a construction heading, construction specification items 51 are basically added to the drawing 30 shown in Fig. 4 by a user such as a facility owner through an input form that has been created in advance and registered in the system 10. When the user calls up the desired drawing 30 through the input form, the user enters the control number of the desired drawing 30 in the control number input field, and then clicks or plots the location on the drawing 30 where the construction will be performed to identify the construction location 53 on the drawing 30.

[0043] The control means 11 retrieves the input control number and the construction header 43 associated with that control number from the storage means 13, creates a construction specification 51 consisting of the control number and header 43, and recognizes the construction location 53, which is the clicked position on the drawing 30. The control means 11 then determines the size of the construction specification 51 to be displayed on the drawing 30, taking into account the size of the drawing 31 on the drawing 30, and determines the position on the drawing where the construction specification 51, scaled to the determined size, should be placed. That is, the control means 11 places the construction specification 51 in a margin outside the area where the drawing 31 is displayed, close to the location where the construction location 53 is specified. The control means 11 also places a leader line 52 between the construction specification 51 and the construction location 53. The display means 14 then displays the construction specification 51 and leader line 52 on the drawing 30. The drawing 50 with a construction header, shown as an example in FIG. 6, can be created in this manner.

[0044] To explain a more specific example of creating a drawing 50 with a construction heading, if the file format of the drawing 30 imported into the storage means 13 is raster format, the control means 11 converts it to vector format, and also creates a construction specification 51, which pairs the control number and construction heading 43, as a vector image.The scale of the diagram 31 and the construction specification 51 on the drawing 30 is then adjusted to match the display size and display area of ​​the output target so that they do not overlap, and they are placed within the specified output area.Finally, the creation of the drawing 50 with a construction heading is completed by displaying a leader line 52 showing the straight line that minimizes the distance between the construction specification 51 and the construction location 53.

[0045] It is also possible to add another construction specification 51 to a construction heading drawing 50 that already has some construction specifications 51 added to it. In this case, the control means 11 cancels the construction specifications 51 and leader lines 52 that have already been added, rearranges the multiple construction specifications 51 that should be placed outside the area of ​​FIG. 31 so that they do not overlap, and adds leader lines 52 that connect the rearranged construction specifications 51 to the construction location 53.

[0046] In the above process, the construction specification item 51 is a pair of the control number and the construction heading 43, but the construction specification item 51 can also be the control number alone, or a combination of the control number and some other control item other than the construction heading 43. In other words, the construction specification item 51 can be any item that can identify the construction other than the construction location. In addition, the construction specification 43 can be created as a raster image and then converted into a vector image.

[0047] 5. Reference to construction management documents from drawings with construction headings When a user plots a construction specification item 51 on a drawing with a construction heading 50 by clicking or the like, the drawing with a construction heading 50 and the construction management document 20 can be linked so that the construction management document 20 for the construction with that management number opens. On the other hand, a link field for linking to the drawing with a construction heading 50 can be provided in the construction management document 20. The area for construction specific items 51 on the construction heading drawing 50 is regarded as an input area, and the control means 11 detects a user double-click or the like on that area, and the display means 14 displays the construction management document corresponding to that construction specific item 51. In addition, the control means 11 calls up the corresponding construction heading drawing 50 from the storage means 13 in response to a user operation on the link field of the construction management document, and the display means 14 displays the construction heading drawing 50 on the screen of the various terminals 2.3.

[0048] Similar to these mechanisms, the construction management document 20 can have a link field that links to the photo management form 40. In response to a user's operation on this link field, the control means 11 calls up the management items required to create the corresponding photo management form 40 from the storage means 13, and the display means 14 displays the photo management form 40 on the screens of the various terminals 2 and 3.

[0049] The above-described embodiments are examples of the present invention, and modifications of the embodiments or additions or combinations of known technologies may be made without departing from the spirit of the present invention, and such technologies are also included in the scope of the present invention.

[0050] For example, the items to be added to the drawing 30 are not limited to the construction specification items 51, and items that do not specify construction other than the construction specification items 51 may be added. Furthermore, although the construction specification items 51 are arranged in the margins of the drawing 30, they may be arranged so as to overlap with the drawing 31. In that case, it is preferable that the control means 11 recognizes the number and distribution of construction locations 53 selected on the drawing 30, and arranges the position of each construction specification item 51 so that the leader lines 52 do not overlap multiple construction specification items 51. [Explanation of symbols]

[0051] 1 Management Server 2, 2a, 2b, 2c Facility terminal 3,3a,3b,3c Construction worker terminal 4, 4a, 4b, 4c System manager terminal 5. Network 10 Systems 11 Control measures 12 ID recognition means 13 Memory means 14 Display means 15 Other measures 20 Construction Management Document 30 Drawings Figure 31 (schematic plan view) 40 Photo management slip 41 Management number 42 Construction site 43 Headlines 44 Comments 50 Construction drawings with headings 51 Construction specific matters 52 Leader Line 53 Construction site

Claims

1. a storage means for recording a plurality of management items representing the content of the construction work, including the location of the construction work; a display means for displaying construction-related documents; a control means for controlling the storage means and the display means and executing calculations; In a centralized construction management system that links the location of construction work with the content of that construction work (excluding the location), A user selects a desired construction project and plots the construction location on a drawing, and based on the user's operation, the user creates a drawing with a construction heading that displays construction specifications that identify the selected construction project and a leader line connecting the construction specifications and the construction location on the drawing. The control means extracts the construction specification items from the management items recorded in the storage means based on the user operation, determines the size of the construction specification items to be displayed on the drawing taking into account the size of the figure on the drawing, and determines a position on the drawing where the construction specification items and the leader lines are to be placed outside the area where the figure on the drawing is shown, A centralized construction management system characterized in that the display means creates a drawing with a construction heading on which the construction specific items and the leader lines are displayed on the drawing.

2. Based on a user operation in which the user selects a desired other construction project from the construction header drawing and plots the construction location on the drawing, 2. A centralized construction management system as described in claim 1, wherein the control means cancels the arrangement of the existing construction specifications and the existing leader lines already displayed on the construction heading drawing, and re-determines the positions on the construction heading drawing of the existing construction specifications and the existing leader lines, along with the construction specifications of the other construction and their leader lines, and the display means creates another construction heading drawing in which these construction specifications and leader lines are displayed on the construction heading drawing.

3. 2. The centralized construction management system according to claim 1, wherein the construction specification items and the drawings are created as vector format images, and the scale of the drawings and the construction specification items are adjusted and arranged so that they do not overlap.

4. A centralized construction management system as described in any one of claims 1 to 3, wherein, based on a user operation of plotting construction-specific items on the drawing with the construction heading, the control means identifies a construction management document that displays the contents of the construction identified by the construction-specific items, and the display means displays the construction management document, thereby linking and managing the construction and the drawing with the construction heading.

5. Regarding the photo management slip, which is a separate document from the construction management document that displays the details of the construction work specified by the construction specific items, and which displays photographs related to the details of the construction work, A centralized construction management system as described in any one of claims 1 to 3, wherein based on user operation on a link field provided in the construction management document, the control means calls up the management items necessary for creating the photo management form from the storage means, and the display means displays the photo management form, thereby linking the photo management form to the construction management document and managing it.

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