JP2014211710A - Estimation support device, information processor and estimation support method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve estimation accuracy of construction cost of a building while suppressing an increase in the burden of a builder.SOLUTION: A drawing reception part 48 receives a drawing of a building of an estimation object from a builder terminal 12. A member reserving part 50 reserves members described in the drawing as members to be installed in the builing of the estimation object among a plurality of kinds of members held by a member information holding part 36. A cost calculation part 52 calculates construction cost of the building of the estimation object in accordance with prices of the members reserved by the member reserving part 50. The member reserving part 50 includes a member estimation part 62 for estimating members which are members undescribed in the drawing and assumed to be used in the construction of the building in accordance with attributes of the building described in the drawing.

Description

  The present invention relates to a data processing technique, and more particularly to a technique for supporting estimation of a building construction cost.

  Since building construction costs are expensive compared to general merchandise, a builder may present a rough estimate of construction costs to a customer (eg, a client). For example, in the following Patent Document 1, a system for estimating the construction cost of a building is proposed.

Japanese Patent Laid-Open No. 2002-230080

  Even at the rough estimation stage, the construction cost estimate requires a certain level of accuracy. On the other hand, there are a wide variety of members installed in a building, and even if it is actually a member installed in a building, it may be difficult to request information on individual members from the builder at an approximate stage. .

  This invention is made | formed in view of the said subject, and the main objective is to provide the technique which improves the estimation precision of the construction cost of a building, suppressing the increase in the burden of a builder.

  In order to solve the above-described problem, an estimation support apparatus according to an aspect of the present invention includes a member information holding unit that holds information on a plurality of types of members that can be used in building construction, and a drawing that receives a drawing of a building to be estimated. As a member installed in the building to be estimated and the estimation target, an allocation unit that allocates a member described in the drawing from a plurality of types of members held in the member information holding unit, and an allocation unit allocated A cost calculation unit that calculates the construction cost of the estimated building according to the price of the member. The allocation unit includes an estimation unit that estimates a member that is not described in the drawing but is assumed to be used for building the building, according to the attribute of the building described in the drawing.

  Another aspect of the present invention is an information processing apparatus. This apparatus is configured to transmit a drawing of a building to be estimated to a predetermined server according to a user operation, a member to be installed in the building to be estimated, a member described in the drawing, Although it is an undescribed member, a member that is supposed to be used for building the building is allocated, and estimate information indicating the construction cost of the estimated building including the price of both members is obtained from the server. A receiving unit that receives the estimated information received by the receiving unit; and a display unit that displays the estimated information on a predetermined display device. Estimated information includes multiple estimated items, and information indicating the fact is added to estimated items that have unrecorded expenses, and the display section displays the estimated items that have unrecorded expenses. A screen for allowing the user to input the cost is further displayed on the display device.

  Yet another embodiment of the present invention is an estimation support method. This method includes a step of receiving a drawing of a building to be estimated, and a member described in the drawing from a plurality of types of members whose information is held in a predetermined storage area as members installed in the building to be estimated. And a step of calculating a construction cost of the building to be estimated in accordance with the price of the member allocated in the step of allocating. The step of allocating includes a step of estimating a member that is not described in the drawing but is assumed to be used for building the building, according to the attribute of the building described in the drawing.

  It should be noted that any combination of the above-described constituent elements and a representation of the present invention converted between a system, a program, a recording medium storing the program, etc. are also effective as an aspect of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, it can support improving the estimation precision of the construction cost of a building, suppressing the increase in the burden of a builder.

It is a figure which shows the structure of the building assistance system of embodiment. It is a block diagram which shows the function structure of the building assistance apparatus of FIG. It is a block diagram which shows in detail the functional structure of the construction DB and the rough estimation unit of FIG. It is a figure which shows a building specification selection screen. It is a figure which shows a specification confirmation screen. It is a figure which shows a specification confirmation screen. It is a figure which shows an architectural CAD drawing. It is a figure which shows a rough estimate screen. It is a figure which shows a breakdown statement screen. It is a figure which shows an allocation list screen. It is a figure which shows a profit setting screen. It is a block diagram which shows the functional structure of the construction DB of FIG. 2, formal estimation part, process management part, and order management part in detail. It is a figure which shows a process chart. It is a figure which shows an estimated goods selection screen. FIG. 15A shows a work list screen, and FIG. 15B shows a work detail screen.

An outline will be described before the configuration of the embodiment is described.
There are a wide variety of components necessary for building a building, and in order to calculate a reasonable estimate to some extent in the estimation of the construction cost so far, a builder has to identify these components. As a result, much labor and time are required for the estimation work. In addition, order information management with high accuracy is necessary so that even part of the part number, quantity, color pattern, etc. is not insufficient, and hundreds of materials are exchanged by FAX, etc. It took considerable effort. Also, in order to order the necessary parts for the building without delay in accordance with the progress of the construction work, it is necessary to collect information for managing the progress of the construction work, which takes a lot of time and effort.

  Therefore, the construction support apparatus according to the embodiment accepts 2D or 3D architectural CAD drawing data (hereinafter referred to as “architectural CAD drawing”) created by the builder, and accepts architectural specifications of the building designated by the builder. The building support device extracts the building information to be estimated from the building CAD drawing, and based on the building information and building specifications, from the database of building materials and construction on the cloud, etc. All materials and works related to building construction are searched and matched. In addition, the building materials, building price information, and price calculation logic stored in the database on the cloud are used to automatically calculate all costs necessary to build the building to be estimated, and the entire building A construction cost estimate (in the embodiment, “estimate estimate”) is created. The builder uploads the building CAD drawing to the building support apparatus, thereby causing the building support apparatus to automatically create a building estimate and downloading the estimate. In other words, it is possible to make a construction proposal for a house to the owner with a small burden.

  Further, the building support apparatus according to the embodiment searches the building construction process database on the cloud based on the result of the rough estimate process and the construction work conditions specified by the builder, and shows the building (the building CAD drawing shows). Building construction process to actually build the building). Furthermore, it supports the progress management of construction work.

  As described above, the building support apparatus according to the embodiment consistently manages information from building estimation to completion, and supports the work of various parties related to building construction such as builders and construction contractors. For example, by providing a rough estimate result for one building in a few minutes, the work load on the builder can be significantly reduced. In addition, based on the written estimate, building materials for the entire building can be ordered on the online website in one stop, reducing the number of items in ordering work. In addition, rational process management is realized for each construction site, shortening the construction period, reducing ordering errors, suppressing erroneous delivery, and suppressing the generation of wasteful costs.

  FIG. 1 shows a configuration of a building support system according to an embodiment. The building support system 10 includes a builder terminal 12 a and a builder terminal 12 b that are collectively referred to as a builder terminal 12, a construction contractor terminal 14 a and a contractor terminal 14 b that are collectively referred to as a contractor terminal 14, and a building support device 16. 1 are connected via a communication network 18 including a LAN, a WAN, the Internet, and the like.

  The builder terminal 12 is an information processing apparatus operated by a person in charge of the builder, and is typically a PC on which a web browser is installed. The builder is typically a contractor who performs building design work, and may also be a contractor who also performs construction work. The builder may be, for example, a construction shop or a design office. The contractor terminal 14 is an information processing apparatus that is operated by a person in charge of a contractor who undertakes building construction of a building, and is typically a mobile terminal in which a web browser is installed. For example, a tablet terminal or a smartphone held by a person in charge at a construction site may be used.

  The building support device 16 is an information processing device managed by a housing material manufacturer, for example. The construction support apparatus 16 has a web server function and publishes on the Internet a website that provides a one-stop service for estimating, ordering, and construction process management (hereinafter also referred to as “building support site”). The builder terminal 12 and the construction contractor terminal 14 access the building support site via the Internet, and acquire the web page data desired by the user from the building support device 16. The builder terminal 12 and the construction contractor terminal 14 cause the web page acquired from the building support apparatus 16 to be displayed on the display, and appropriately cause the printer to print the web page.

  In FIG. 1, the building support device 16 is depicted as one block, but the physical hardware configuration of the building support device 16 is not limited. For example, the web server function, application server function, and database server function are distributed and executed on a plurality of computers with physically different housings (installation locations), and the plurality of computers exchange data with each other to construct the building. The function of the support device 16 may be realized. That is, the building support apparatus 16 may be implemented as a cloud system.

  FIG. 2 is a block diagram showing a functional configuration of the building support apparatus 16 of FIG. The building support device 16 includes a communication unit 20, a data processing unit 22, and a building DB (database) 24. Each block shown in the block diagram of the present specification can be realized in hardware by an element and a mechanical device such as a CPU and a memory of a computer, and is realized by a computer program or the like in software. , Depicts functional blocks realized by their cooperation. Therefore, those skilled in the art will understand that these functional blocks can be realized in various forms by a combination of hardware and software.

  For example, a program module corresponding to each functional block of the data processing unit 22 may be stored in the storage of the building support apparatus 16. And the function of each functional block may be implement | achieved when CPU of the building assistance apparatus 16 reads those program modules to the main memory, and performs them. The architecture DB 24 may be realized by a storage or a main memory of the architecture support apparatus 16, and may manage data by a DBMS (DataBase Management System) function.

  The communication unit 20 transmits / receives data to / from the builder terminal 12 and the contractor terminal 14 according to a predetermined communication protocol such as TCP / IP. The communication unit 20 passes the data received from the builder terminal 12 or the construction contractor terminal 14 to the data processing unit 22 and transmits the data output from the data processing unit 22 to the builder terminal 12 or the construction contractor terminal 14.

  The data processing unit 22 executes data processing for providing a building support service. The data processing unit 22 includes an approximate estimation unit 26, a formal estimation unit 28, a process management unit 30, and an order management unit 32. The architecture DB 24 is a storage area that stores various data for data processing by the data processing unit 22 and temporarily stores data being processed by the data processing unit 22 as appropriate. Since the function of the web server itself is known, its description is omitted.

  The rough estimate unit 26 executes a rough estimate process, and the formal estimate unit 28 executes a formal estimate process. The process management unit 30 executes a process management process for building construction, and the order management unit 32 executes an ordering process for various members necessary for building the building. The detailed configuration of these functional blocks will be described later. In addition, the member in this specification is also called merchandise, and includes materials, parts, and equipment necessary for building construction, in other words, includes materials, parts, and equipment installed in the building. That is, it includes various building materials (building materials) and fittings, and various housing equipment including electric equipment.

  FIG. 3 is a block diagram showing in detail the functional configuration of the building DB 24 and the rough estimate unit 26 of FIG. The construction DB 24 includes a member information holding unit 36, a specification information holding unit 38, a construction information holding unit 40, an estimation logic holding unit 42, and a member information holding unit 44. The rough estimate unit 26 includes a specification setting unit 46, a drawing receiving unit 48, a member allocating unit 50, a cost calculating unit 52, an estimate providing unit 54, a correction receiving unit 56, and a profit setting receiving unit 58.

  The member information holding unit 36 is a plurality of types of members sold by various building material manufacturers and housing material manufacturers (for example, including manufacturers that manage the building support device 16), and a plurality of types of members that may be necessary for building construction. Holds attribute information about members. In other words, information on a plurality of types of members that can be installed in a building is held. This attribute information includes information such as a member ID, a manufacturer name, a member category, a product name, a price, a grade, a size, and a color for one member (for example, a building material / joint such as an outer wall or a front door). The member category can also be referred to as a part, and indicates the type of building material or fitting such as “outer wall” or “entrance door”. The price may be, for example, a predetermined unit price per unit amount. The grade is typically information indicating the rank of the member in accordance with the price, and in the embodiment, three types of high grade, intermediate grade, and popular are provided.

  The specification information holding unit 38 holds standard building specifications. Specifically, a predetermined standard is associated with a plurality of pieces of member information (for example, a combination of each part of the building and a specific member ID held by the member information holding unit 36) that matches the reference. Hold. This standard is typically a building standard set by a public organization, and includes, for example, “low carbon building certification standard”, “top runner standard”, and “next generation energy saving standard”. The specification information holding unit 38 holds each of these standards in association with a plurality of member information necessary for one building.

  The construction information holding unit 40 holds information on a plurality of types of constructions necessary for building a single building. The multiple types of work include temporary work, foundation work, wood work, roofing work, housing equipment, electrical equipment (materials), and electrical equipment work. The construction information holding unit 40 holds typical work costs and work times for each of a plurality of types of work. The construction information holding unit 40 may hold work cost calculation logic and work time calculation logic. For example, calculation of work cost and work time with parameters such as building size (roof area, site area, floor area, etc.), room type, etc. entered in the architectural CAD drawing and entered separately by the builder as property information You may hold an expression.

  In addition, the construction information holding unit 40 also holds a correspondence relationship between a plurality of types of construction and member categories used in the construction (installed in a building). For example, the exterior work and the outer wall are associated with each other, and the interior work and the wallpaper are associated with each other and held.

  The estimation logic holding unit 42 is not drawn in the architectural CAD drawing uploaded by the builder, but is a member assumed to be installed in the building, in other words, a member assumed to be necessary for building construction. Holds data (hereinafter referred to as "estimation logic") indicating rules and standards for estimating. An example of the estimation logic will be described later.

  The member information holding unit 44 holds attribute information related to each builder (that is, a member of the building support site) whose login account has been registered in the building support device 16. This attribute information includes account information, individual specification information, and property information. The individual specification information is information on a building specification unique to the builder registered in the building support apparatus 16 by the builder. For example, a building specification in which a builder customizes a standard building specification held by the specification information holding unit 38. The property information is information on the property registered by the builder. In other words, the property information is information on a building that is a target of estimation, ordering, and process management in the building support apparatus 16.

  In the following description, information on a specific building that is a target of estimation, ordering, and process management in the building support apparatus 16 is referred to as “property information 45”. The member information holding unit 44 holds, as the property information 45, information indicating the building specification selected by the builder, the building CAD drawing uploaded by the builder, and the result of the estimation process, the ordering process, and the process management process.

  The specification setting unit 46 sets the building specifications to be applied by the rough estimate according to the operation of the builder. This architectural specification can be said to be a standard applied to a building designed by a builder, and includes information not specified in the architectural CAD drawing (for example, designation of wallpaper or base material). When the builder selects the rough estimate tab on the top page of the building support site, the specification setting unit 46 receives a request for providing the building specification selection screen from the builder terminal 12 and sends the web page of the building specification selection screen to the builder terminal 12. Send.

  FIG. 4 shows the building specification selection screen 70. The specification setting unit 46 creates data of a building specification selection screen for displaying a list of standard building specifications held in the specification information holding unit 38 and individual building specifications for the requesting builder held in the member information holding unit 44. To do. At that time, “K” is set in the category column 72 for the standard building specification, and “My” is set in the category column 72 for the individual building specification. The builder selects and inputs (ie, presses down) a selection button 74 of a desired building specification. When confirming the building specifications, the confirmation button 76 is selected and input.

  When the selection button 74 is selected and input on the building specification selection screen 70, the specification setting unit 46 acquires the selected building specification information from the specification information holding unit 38 or the member information holding unit 44, and in the property information 45 Store. In addition, when the confirmation button 76 is selected and input on the building specification selection screen 70, the specification setting unit 46 receives a specification confirmation screen provision request from the builder terminal 12, and transmits a web page of the specification confirmation screen to the builder terminal 12.

  5 and 6 show a specification confirmation screen 78. FIG. The specification confirmation screen 78 includes a building basic specification screen for confirming / editing the basic specifications of the building and a building material specification setting screen for confirming / editing the specifications of individual members. FIG. 5 shows an example of a building basic specification screen, and FIG. 6 shows an example of a building material specification screen.

  When the builder selects “Random” in the selection field 80 of FIG. 6, a member corresponding to the value in the grade field 82 is automatically selected. On the other hand, when the builder selects “sticky” in the selection field 80, the member arbitrarily selected by the builder is recorded as the building specification. In this case, when the builder inputs a selection operation on the sticking setting button 84, the specification setting unit 46 acquires a plurality of member information (manufacturer, product name, color, etc.) corresponding to the part from the member information holding unit 36, A member selection screen for selecting a specific member from among the members is provided to the builder terminal 12 for display.

  When “Random” is selected in the selection column 80, the specification setting unit 46 searches the member information holding unit 36 and selects a member associated with the value in the grade column 82 from a plurality of members corresponding to the part. Is identified. Then, the building specification information including the correspondence between the part and the member is recorded in the property information 45. In addition, when “preference” is selected in the selection field 80, the specification setting unit 46 records the building specification information including the correspondence between the member and the part selected by the builder on the member selection screen in the property information 45.

  The drawing receiving unit 48 receives the file of the architectural CAD drawing transmitted from the builder terminal 12. In the embodiment, a drawing file with an extension such as “jwc” or “dwg” is accepted as a 2D architectural CAD drawing. In addition, as 3D architectural CAD drawings, for example, drawing files with extensions such as “ecd”, “stp”, “igs”, and files in which CAD drawing data is converted to be easily transmitted, for example, “kgn”, “dds”, etc. Accept drawing files with newly defined extensions. These architectural CAD drawings may be drawn in a predetermined standard format.

  FIG. 7 shows an architectural CAD drawing. This figure schematically shows 2D CAD drawing data indicating the first floor of the estimation target building. In the 2D architectural CAD drawing, in addition to the size of the building and the size of each room in the building, it is necessary to describe an origin 86, a room name 88, and a symbol 90 for aligning with the drawings on other floors. The symbol 90 is information indicating the type of fittings such as doors and windows and the size in the height (vertical) direction. For example, “2HK 2000” indicated by the symbol 90 in FIG. 7 indicates that the window is a two-piece window with a height of 2 meters.

  The member allocation unit 50 includes a member extraction unit 60 and a member estimation unit 62. The member extracting unit 60 extracts member information recorded in the data from the architectural CAD drawing received by the drawing receiving unit 48. In other words, the member extraction unit 60 acquires the member information specified by the builder as being installed in the building to be estimated. This member information includes a member category, size, and number. In the example of FIG. 7, member information such as a pair of double windows 3 installed in the LDK, a kitchen, and floor heating is extracted.

  The member estimation unit 62 is not explicitly described in the architectural CAD drawing according to the architectural CAD drawing received by the drawing reception unit 48 and the estimation logic held in the estimation logic holding unit 42, but is installed in the building. The member information assumed to be used is estimated. In other words, the member estimation unit 62 additionally specifies member information that is expected to be necessary for building construction, although the builder does not specify installation in the building to be estimated. This member information also includes the member category, size, and number.

  The estimation logic in the present embodiment is described in the building CAD drawing or the size and shape of each part of the building selected on the building specification selection screen 70 (referred to herein as “first data”) and the drawing. Although it is not described in the above, it may be data defining a correspondence relationship with the type and size of members (herein referred to as “second data”) that are assumed to be installed in the building. The first data may be “roof shape”, for example, and the second data may be “roof (valley sheet metal)” and a length calculation logic, for example. Further, the first data may be “eave”, for example, and the second data may be “算出 (eave)”, for example, and a length calculation logic.

  The member estimation unit 62 estimates the type and size of a member that is not described in the drawing but is assumed to be installed in the building, according to the size of each part of the building described in the architectural CAD drawing.

  For example, when the building CAD drawing is a 2D drawing, the member estimation unit 62 sets that “roof (valley sheet metal)” is installed in the building according to the roof shape selected by the builder on the building specification selection screen 70. . In other words, it is decided to include “roof (valley sheet metal)” that is not specified in the drawing in the estimation target. Then, the length of the valley drawn on the architectural CAD drawing is estimated as the length of the “roof (valley sheet metal)”. When the architectural CAD drawing is a 3D drawing, the member estimating unit 62 sets that the “roof (valley sheet metal)” is installed in the building when it is determined that the roof is included in the architectural CAD drawing. The length of the valley drawn in the drawing is estimated as the length of the “roof (valley sheet metal)”.

  Similarly, when the member estimation unit 62 determines that an eave is included in the building based on the architectural CAD drawing, the member estimating unit 62 sets that “樋 (eave)” is installed in the building, and is drawn in the architectural CAD drawing. Estimate the length of the eaves as the length of the “樋”. Thus, by estimating the type and size of a member that is not described in the drawing but is assumed to be installed in the building, the member price (for example, a predetermined unit amount) held in the member information holding unit 36 is estimated. Based on the unit price, the construction cost is estimated with high accuracy.

  In addition, the estimation logic in the present embodiment is installed in a building while not described in the drawing, for example, the type of room (herein referred to as “first data”) described in the architectural CAD drawing. It may be data that defines the correspondence with the type and number of members assumed to be (herein referred to as “second data”). The first data may be, for example, “a washroom” (the same applies to the washroom in FIG. 7), and the second data may be “washing machine pan”, “washing machine faucet”, and the number calculation logic thereof, for example. In addition, the first data is, for example, “living room” and “washing room”, and the second data may be, for example, the type and number of electrical equipment installed in each room and electrical equipment construction performed in each room. Good.

  The member estimation unit 62 estimates the type and number of members that are not described in the drawing but are assumed to be installed in the building according to the type of room described in the architectural CAD drawing. For example, when the member estimation unit 62 determines that the washroom (the same as the washroom in FIG. 7) is included in the drawing CAD drawing, the “washing machine pan” and the “washer faucet” are in the washroom in the building. It is also possible to add “washing machine pan” and “washing machine faucet” to the building members to be estimated.

  In addition, for example, the member estimation unit 62 identifies the type of room described in the architectural CAD drawing, and counts a predetermined number of electrical equipment associated with the type of room. As a specific example, when it is determined that the room “living room” is included in the building depicted in the architectural CAD drawing, the member estimation unit 62 has three general outlets, one dedicated outlet, and one TV outlet. Two switches and two electric wires may be added. Similarly, when it is determined that the room “washing / undressing room” is included, one general outlet, two switches, and one electric wire may be included. Furthermore, the member estimation unit 62 counts one telephone CD pipe work and the like as other electrical equipment, and determines the number of members “24-hour ventilation (exhaust / air supply)” according to the number of living rooms. May be.

  The member allocation unit 50 is subject to estimation according to the member information extracted from the drawing data by the member extraction unit 60, the member information estimated by the member estimation unit 62 based on the estimation logic, and the building specifications stored in the property information 45. The specific members required for the building are allocated to the member category unit. For example, one member is allocated to each estimation target building from among a plurality of types of members held in the member information holding unit 36 in units of member categories such as a building outer wall, a front door, and a Japanese-style window.

  For example, the member allocation unit 50 searches the member information holding unit 36 using a member category / size / number defined by one member information and a grade / color defined by a building specification for the member category as a search key. Then, information on a member (hereinafter referred to as “compatible member”) that conforms to the conditions defined by one member information (referred to as “specific member” herein) and the building specifications is acquired from the member information holding unit 36. Try. If there is a matching member, the matching member is allocated to the building to be estimated, and the part (that is, the member category) of the specific member is associated with the matching member and recorded in the property information 45.

  When the member information holding unit 36 has not yet held the compatible member for the specific member, that is, when the matching member does not hit in the search for the member information holding unit 36, the member allocating unit 50 is an alternative member that approximates the matching member as much as possible. The member information holding unit 36 is searched. If there is a substitute member, the substitute member is allocated to the estimation target building, and the part and the substitute member are associated with each other and recorded in the property information 45. Further, when there is neither a compatible member nor an alternative member, an unallocated flag is set for the specific member information.

  The member allocation unit 50 refers to the construction information holding unit 40 and identifies a construction process in which a member category is associated with each of a plurality of member categories. Then, the construction process (for example, “electric equipment construction, 1st floor-Japanese-style room”, etc.), the member category, the allocated member ID, and the flag indicating any one of the compatible member, the alternative member, and the provision impossible are associated with each other. Create provision information. The member allocation unit 50 records the allocation information in the property information 45 of the estimation target building stored in the member information holding unit 44.

  Here, an alternative member allocation method will be described. For example, when there is no member having the size specified by the specific member information, the member allocation unit 50 searches for a substitute member within a range in which the size specified by the specific member information is reduced by a predetermined ratio (for example, 5%). When a plurality of alternative members are hit, the member having the largest size among them is determined as the alternative member. That is, the member allocation unit 50 searches and acquires a member having a size immediately below the compatible member as an alternative member. As described above, when there is no compatible member, the member allocating unit 50 tries to allocate an alternative member that can be installed in the building while maintaining consistency with the architectural CAD drawing.

  As described above, the member allocation unit 50 determines the compatible member / alternative member based on the shape / size / color and the like based on the architectural CAD drawing and the architectural specification. For example, in the case of a kitchen, if there is a member that matches all of the shape, size, color, and maker of type I / L, it is allocated as a compatible member. If there is no match, an approximate one is allocated as an alternative member. In the case of an alternative member, a flag indicating the fact (for example, a flag corresponding to “Δ” in FIG. 10 described later) is raised to notify the builder that the member is an alternative member.

  Note that a plurality of types of criteria may be provided in allocating alternative members. The first standard has a narrow approximate width (range) and is applied to, for example, a shape and a size. In the case of the size, for example, a component that deviates by 3% or more from the size described in the drawing may not be allocated as an alternative member. The second standard has an approximate approximate width, and is applied to, for example, a color. For example, a certain degree of deviation between the color specified in the specification setting and the hue ring may be allowed, and a member having a similar color may be allocated as an alternative member. The third standard has a wide range of approximation, and is applied to manufacturers and grades, for example. For example, as long as it conforms to the first and second standards, the manufacturer and grade may be arbitrarily selected and allocated as an alternative member. Two grades (high grade and widespread) may not be allocated for grades, while one difference (high grade and intermediate grade) may be allowed and allocated as an alternative member.

  The cost calculation unit 52 refers to the property information 45 of the building to be estimated stored in the member information holding unit 44 and calculates the building cost of the building according to the provision information stored in the property information 45. Specifically, a member category associated with each process is specified with each of a plurality of building construction processes stored in the construction information holding unit 40 as a unit. Then, the member information holding unit 36 is searched by using the member ID allocated to the member category as a key, and the member price is acquired. When member price calculation logic (for example, price per unit amount) is stored in the member information holding unit 36, the cost calculation unit 52 calculates the member price based on the size and number of the allocated members. The cost calculation unit 52 adds the member prices of each member category for a plurality of member categories associated with one construction process, and calculates the member price in one construction process.

  The cost calculation unit 52 calculates the cost of each process by adding the member price and the work price of the work for each of the plurality of work processes. For example, as shown in FIG. 8 and FIG. 9 to be described later, the cost is calculated at the detailed level of each process held in the construction information holding unit 40 (for example, provisional enclosure etc. in the temporary construction process), and appropriately corresponds to each process. The attached material prices are added together. The cost calculation unit 52 sets a flag indicating that for a process in which some costs have not been recorded (for example, a process in which a member that cannot be allocated or a process in which some work prices are not held). Record it in correspondence with the cost of. The cost calculation unit 52 calculates the approximate estimated amount of the entire building by adding the costs for each process.

  The estimate providing unit 54 sets a web page of an approximate estimate screen including the approximate estimated amount calculated by the cost calculating unit 52 and transmits the web page to the builder terminal 12. FIG. 8 shows an approximate estimate screen 92. The estimate providing unit 54 sets a predetermined mark indicating that in the remarks column 94 for a process in which a flag indicating that some expenses are not recorded is set. When the selection operation for the construction details button 96 with the builder is input on the rough estimate screen 92, the estimate providing unit 54 receives a request for providing the breakdown details screen from the builder terminal 12, and displays a web page indicating the breakdown details screen on the builder terminal 12. Send to and display.

  FIG. 9 shows a breakdown detail screen 98. The estimate providing unit 54 sets detailed information including a price as data of the breakdown details screen 98 for the process for which confirmation of details is requested on the approximate estimate screen 92. Similarly to the breakdown details screen 98, when the expenses related to some details have not been recorded, a predetermined mark is set in the remarks column 100. When the builder inputs a selection operation for the edit button 102 on the breakdown detail screen 98, the estimate providing unit 54 receives a provision request for the breakdown detail edit screen from the builder terminal 12, and transmits the web page of the edit screen to the builder terminal 12. . On this editing screen, the builder inputs an unrecorded expense in the detail, and appropriately adds an unrecorded item to the detail. This allows the builder himself to set the parts that were not automatically allocated and the price of the work.

  Further, the estimate providing unit 54 transmits a web page of an allocation list screen that displays a list of the allocation status of members to the builder terminal 12. FIG. 10 shows an allocation list screen 104. The estimate providing unit 54 refers to the allocation information recorded in the property information 45 of the building to be estimated and the member information holding unit 36, and the member information allocated to the member category corresponding to each construction (manufacturer in FIG. 10). (Product name, color, quantity, etc.) are arranged side by side and the allocation list screen 104 is set. The estimate providing unit 54 sets “O” in the allocation result column 106 when the flag of the conforming member is set in the allocation information, and sets the allocation result column 106 when the flag of the alternative member is set in the allocation information. If “△” is set in the allocation information and a flag indicating that allocation is impossible is set in the allocation information, “x” is set in the allocation result column 106.

  When the builder inputs a selection operation to the allocation result change button 108, the estimate providing unit 54 receives a provision member change screen provision request from the builder terminal 12, and transmits a web page of the change screen to the builder terminal 12. On this editing screen, the builder can change the member automatically allocated by the building support device 16 to a member that the builder himself considers more appropriate.

  The builder terminal 12 transmits data indicating the edit result on the breakdown detail edit screen and the change result on the allocation member change screen to the building support device 16, and the correction receiving unit 56 receives this data. The correction accepting unit 56 passes the breakdown detail edit result or the allocation member change result to the expense calculating unit 52, and the expense calculating unit 52 recalculates the estimated amount reflecting these. The estimate providing unit 54 transmits a web page of a re-estimation screen indicating the estimated amount newly calculated by the cost calculating unit 52 to the builder terminal 12.

  The approximate estimated amount shown in FIG. 8 does not consider the profits that the builder should obtain, and in other words, indicates the construction cost of the building. The building support device 16 receives from the builder a designation of the amount of profit that the builder obtains when building the building, and calculates an estimated amount in consideration of the builder's interest, in other words, an estimated amount to be presented to the owner.

  In order to calculate the estimated amount for presenting the owner, the profit setting reception unit 58 transmits the web page of the profit setting screen to the builder terminal 12 for display. FIG. 11 shows the profit setting screen 110. In the calculation method designation area 112 of the profit setting screen 110, the builder selects either profit rate designation or profit amount designation as the calculation method of the profit he / she obtains. In FIG. 11, it is assumed that the profit rate designation is selected, and the builder sets the profit rates of a plurality of works in the profit rate designation area 114 or sets the works individually. When profit amount designation is selected in the calculation method designation area 112, instead of the profit rate designation area 114, a profit amount designation area for designating the profit amount of each construction is displayed.

The profit setting reception unit 58 functions as a reception unit for an estimate creation instruction for the owner. That is, when the builder inputs a selection operation for the estimate instruction button 116, the profit setting reception unit 58
Profit setting information including the profit rate input in the profit rate specification area 114 or the profit amount input in the profit amount specification area (also referred to as an estimate creation instruction for the owner) is received from the builder terminal 12.

  The profit setting reception unit 58 passes the profit setting information received from the builder terminal 12 to the cost calculation unit 52, and the cost calculation unit 52 calculates an estimated amount for presenting the client reflecting the profit rate or profit amount specified by the builder. To do. Typically, the estimated amount calculated previously based on the provisioning members and work costs, i.e., each construction cost in the estimated amount indicating the construction cost, is increased according to the profit rate or the amount of profit. Calculate the estimated amount. When increasing the cost of each construction process, it is of course possible to increase the list price of each item in the breakdown details of FIG. 9 according to the profit rate or profit amount (proportional to each item). is there.

  The estimate providing unit 54 transmits a web page of an approximate estimate screen including the estimated amount for client presentation calculated by the cost calculating unit 52 to the builder terminal 12. Upon receipt of a PDF (Portable Document Format) file download request, the quotation providing unit 54 transmits to the builder terminal 12 a quotation PDF file for presentation of a client, a PDF file of breakdown details, and a PDF file of an allocation list. Thereby, the proposal work to the owner by the builder, for example, the presentation of the estimated estimated amount and its support can be supported.

  FIG. 12 is a block diagram showing in detail the functional configuration of the building DB 24, the formal estimation unit 28, the process management unit 30, and the order management unit 32 in FIG. The configuration of the architectural DB 24 is the same as FIG. The formal estimation unit 28 includes a property information setting unit 120, an estimated product selection unit 122, and an estimation processing unit 124. The process management unit 30 includes a provisional process creation unit 126, a process information provision unit 128, a process determination unit 130, and a progress management unit 132. The order management unit 32 includes an order product selection unit 134 and an order processing unit 136.

  The property information setting unit 120 sets information on a property to be officially estimated according to the operation of the builder. Specifically, when the builder selects the official quotation tab on the top page of the building support site, a request for providing the property information input screen is received from the builder terminal 12, and the web page is transmitted to the builder terminal 12 for display. Let The builder inputs property information such as the owner information and the building address to the web page for the estimated property. The property information setting unit 120 receives the property information from the builder terminal 12 and records it in the property information 45.

  Here, since the formal estimate is based on an order, the provisional process creation unit 126 constructs a building to be estimated according to a construction process template (for example, construction item, construction man-hour template) stored in the construction information holding unit 40. A provisional process for doing so, in other words, a provisional schedule is determined. For example, the construction process is created according to the construction process template stored in the construction information holding unit 40 and the property information recorded in the property information 45 (for example, site area, building size, members used in each construction process). To do.

  The builder designates the start date, the upper building date, or the completion date as the reference date for process creation. The temporary process creation unit 126 receives a process creation reference date from the builder terminal 12 and creates a construction process according to the reference date. The temporary process creation unit 126 records the created construction process information in the property information 45. FIG. 13 shows a process table 140. The process table 140 shows the construction process created by the provisional process creation unit 126 as a two-dimensional table of construction items and schedules. The work indicator 142 indicates the work schedule of each process. The process information providing unit 128 transmits the data of the process table created by the provisional process creating unit 126 to the builder terminal 12 for display.

  Returning to FIG. 12, the estimated product selection unit 122 sets information on members to be officially estimated in accordance with the operation of the builder. Specifically, first, a web page of an estimated product selection screen for selecting a member to be an official estimate is transmitted to the builder terminal 12 and displayed. FIG. 14 shows an estimated product selection screen 144. The estimated product selection unit 122 acquires, from the property information 45, a plurality of member information allocated to the building by the rough estimation process by the rough estimation unit 26, and uses the member information corresponding to the corresponding construction process (the construction information holding unit 40). To obtain an estimated product selection screen 144.

  Here, the member information holding unit 36 holds information indicating whether or not each of the plurality of members is a member (building material or housing material) that can be ordered by the building support apparatus 16. A mode in which the estimated product selection unit 122 can select by selecting a check box in the target selection field 146 for a member that can be ordered by the building support apparatus 16 among a plurality of members allocated in the rough estimation process. To display. On the other hand, a check box is not arranged for a member that cannot be ordered by the building support apparatus 16 and is displayed in a non-selectable manner. That is, at the stage of the rough estimate, priority is given to presenting the rough estimate of the entire building, and the material that the building support apparatus 16 does not handle orders, for example, the housing material manufacturer that manages the building support apparatus 16 does not handle it. The materials were also estimated. On the other hand, at the stage of formal quotation on which ordering is a premise, members and constructions that the building support apparatus 16 does not handle ordering are excluded from the estimation.

  In addition, the member information holding unit 36 holds a “rule delivery date” indicating the number of days that can be delivered to the construction site by placing an order without checking the inventory for each of the plurality of members. The estimated product selection unit 122 applies a rule between the current date and time to the start date of the corresponding construction process (that is, the delivery date of the member) for each member allocated to the building by the rough estimation process by the rough estimation unit 26. Judge whether the delivery date can be secured.

  When the rule delivery date is secured, that is, when it can be ensured that the member can be delivered by the start date of the corresponding work (the work in which the member is associated, in other words, the work in which the member is used) A check box is arranged in the target selection column 146 of the member, and selection by the builder is possible. On the other hand, when the rule delivery date cannot be secured, the check box is not arranged in the target selection column 146 of the member, and the selection by the builder is disabled. In this case, if it is necessary to place an order for a member, the builder makes a separate inquiry to the building material manufacturer. In this way, by determining whether or not formal quotation is possible according to the rule delivery date, in other words, whether or not ordering is possible, it is possible to quickly determine whether or not members can be ordered by avoiding complicated inventory check processing.

  On the estimated product selection screen 144, the builder checks the target selection column 146 for a member to be subject to formal quotation, and inputs a selection operation for the estimate instruction button 148. When the estimated product selection unit 122 receives from the builder terminal 12 an estimation instruction including designation of a member to be officially estimated, the estimated product selection unit 122 records the member information to be officially estimated in the property information 45.

  The configuration of the estimation processing unit 124 is the same as the cost calculation unit 52 and the estimation providing unit 54 of the approximate estimation unit 26 described above. The estimation processing unit 124 calculates the official estimated amount by counting the price of each member according to the member price held in the member information holding unit 36 for the member to be officially estimated recorded in the property information 45. The estimation processing unit 124 transmits a web page of an official quotation indicating the result of the estimation process (for example, an official estimated amount) to the builder terminal 12.

  Returning to FIG. 12, the order merchandise selection unit 134 sets information on a member to be ordered according to the operation of the builder. Specifically, when the builder selects the order tab on the top page of the building support site, this is a web page in which the member information for the official quotation recorded in the property information 45 is arranged, and the member to be ordered is selected. For this purpose, the web page of the order product selection screen is transmitted to the builder terminal 12. The order merchandise selection unit 134 accepts confirmed information of the order target member from the builder terminal 12 and records the information in the property information 45.

  The process information providing unit 128 transmits a web page of a process confirmation screen including information on the temporary construction process (process table 140 in FIG. 13) recorded in the property information 45 to the builder terminal 12 for display. When the builder inputs an operation indicating the process confirmation on the process confirmation screen, the process confirmation unit 130 accepts the fact of the process confirmation from the builder terminal 12, and uses the temporary construction process information recorded in the property information 45 as the formal construction. Confirm as a process. For example, a predetermined flag indicating that it is a confirmed formal construction process is set.

  When the selection of the ordered product is completed and the construction process is confirmed, the order processing unit 136 transmits the web page of the final order confirmation screen to the builder terminal 12 for display. When the builder inputs an operation for confirming the order on the order final confirmation screen, the order processing unit 136 accepts the order confirmation from the builder terminal 12 and starts predetermined order processing for the order target member recorded in the property information 45. To do. For example, an ordering instruction document indicating that the ordering target member is delivered by the start date of the construction process corresponding to the ordering target member is created.

  The progress management unit 132 supports the work of the construction company according to the formal construction process recorded in the property information 45. For example, the progress management unit 132 executes a preparatory management process for building work of a building. Specifically, the construction process as the schedule recorded in the property information 45 is provided and displayed on the contractor terminal 14, and the work progress information as a result transmitted from the contractor terminal 14 is recorded in the property information 45. . Moreover, the progress degree (delay degree) of a process is determined and the information is provided to the contractor terminal 14.

  The progress management unit 132 transmits the web page of the work list screen to the construction contractor terminal 14 for display as information for supporting the work of the construction contractor. FIG. 15A shows a work list screen 150. The progress management unit 132 sets a list of construction processes and information indicating the progress status of each process on the work list screen 150. When the work 152 is selected on the work list screen 150, the progress management unit 132 accepts a request for providing detailed information on the selected work from the construction contractor terminal 14, and provides a web page of the work detail screen to the construction contractor terminal 14. .

  FIG. 15B shows a work detail screen 154. The construction contractor inputs a work start and completion record date in the work schedule area 156. Also, a detailed work item completion status is entered in the work item area 158. The progress management unit 132 acquires the work status input to the work detail screen 154 from the construction contractor terminal 14 and records it in the property information 45 as construction performance information. Moreover, the progress degree of a process is updated. As a result, members involved in the construction of the property can manage the progress of the construction using devices such as tablet terminals and smartphones.

The operation of the building support apparatus 16 having the above configuration will be described below.
A builder who plans to propose a house to a customer (owner) operates the builder terminal 12 to log in to the construction support site, and selects an approximate estimate tab on the top page. The specification setting unit 46 of the building support apparatus 16 provides the building specification selection screen 70 to the builder terminal 12, and the builder selects a desired building specification from the existing building specifications or customizes the existing building specifications. The specification setting unit 46 records the building specification designated by the builder in the property information 45. The builder who has determined the building specifications uploads the building CAD drawing of the house proposed to the client from the builder terminal 12 to the building support device 16.

  The member allocating unit 50 of the building support apparatus 16 extracts members that are specified to be installed in the house according to the building CAD drawing. Moreover, although it is not specified in drawing, it is a member assumed to be installed in a house based on the attribute of the house described in drawing, in other words, it is assumed that it is required in the construction of a house. The member and the construction are autonomously estimated according to a predetermined estimation logic. The member allocation unit 50 allocates a member extracted from the building CAD drawing and a member estimated autonomously to the home to be estimated. At that time, if there is no matching member that perfectly matches the drawing and the building specifications, an alternative member that approximates as much as possible is allocated. The cost calculation unit 52 accumulates the price of the allocated member by the member allocation unit 50 for each construction process, and calculates the cost of each construction process in consideration of the standard work cost of the construction. Then, the estimated estimated amount of the house is calculated by adding the costs for each construction process.

  The estimate providing unit 54 provides the builder terminal 12 with a rough estimate indicating the approximate estimated amount calculated by the cost calculation unit 52, a breakdown details thereof, and a web page indicating the allocation status of the members. When the breakdown details and the allocation member are changed in the builder terminal 12, the cost calculation unit 52 newly calculates an estimated amount reflecting the change, and the estimate providing unit 54 provides the new estimated amount to the builder terminal 12. . When the profit setting reception unit 58 acquires the profit setting information set by the builder from the builder terminal 12, the cost calculation unit 52 calculates an estimated amount for presenting the client, which adds the profit that the builder should obtain, and the estimate providing unit 54 Provides the estimated price for presenting the owner to the builder terminal 12.

  Based on the rough estimate obtained above, the builder proposes a house to the customer and receives an order for a house building. When the builder selects the official quotation tab on the top page of the building support site, the property information setting unit 120 of the building support device 16 provides the property information input screen to the builder terminal 12. The builder inputs property information (owner information, property address, etc.) for the estimated property on the property information input screen, and the property information setting unit 120 records the property information in the property information 45. The builder also sets a base date for creating the construction process. The provisional process creation unit 126 creates a provisional construction process for constructing a roughly estimated property according to the reference date set by the builder and the result of the approximate estimation process. And the process information provision part 128 provides the process table which shows a temporary construction process to the builder terminal 12, and makes a builder confirm.

  When the builder inputs an operation to confirm the construction process, the estimated product selection unit 122 provides the estimated product selection screen 144 to the builder terminal 12. When the builder selects an official quotation target member, the estimated product selection unit 122 records the member information selected by the builder in the property information 45. The estimate processing unit 124 calculates the official estimate amount by accumulating the price of the official estimate target member selected by the builder, and provides the official estimate to the builder terminal 12.

  The builder who confirmed the official quotation moves to order processing. When the builder selects the ordering tab on the top page of the building support site, the ordering product selection unit 134 of the building support device 16 provides the ordering product selection screen to the builder terminal 12. When the builder selects an order target product, the process information providing unit 128 provides the builder terminal 12 with a final confirmation screen for the construction process. When the builder confirms the construction process, the order processing unit 136 provides the builder terminal 12 with a final order confirmation screen. When the builder inputs that the order is confirmed, the order processing unit 136 starts the ordering process for the order target product.

  In the building construction stage, the progress management unit 132 of the building support apparatus 16 manages the progress of the building work. In a building construction site of a building, when a construction contractor specifies a predetermined URL and accesses the construction support apparatus 16 from the construction contractor terminal 14, the progress management unit 132 of the construction support apparatus 16 constructs a web page for progress management. Provide to the merchant terminal 14. In addition, the progress management unit 132 acquires input information to the web page from the construction contractor terminal 14, updates the progress status of the construction work, and executes a pre-actual management process.

  According to the building support apparatus 16 of the embodiment, not only the members specified in the building CAD drawing are allocated to the building to be estimated, but also not specified in the building CAD drawing according to the estimation logic based on know-how. Members are also estimated and allocated and recorded in the estimated amount. In this way, the amount of information required of the builder is reduced by autonomously complementing the member that is not explicitly specified by the builder in the rough estimate by the estimation process. Thereby, the estimation precision of the construction cost of a building can be improved, suppressing the increase in the burden of a builder.

  Further, according to the building support device 16, the specification information holding unit 38 holds information on members that meet each standard as a plurality of building specifications corresponding to a plurality of predetermined building standards, and the member provisioning unit 50 Members that meet the building specifications (building standards) selected by the builder are allocated as members to be installed in the building to be estimated. Therefore, even if the building CAD drawings are the same, if the builder selects different building specifications, the member allocating unit 50 allocates different members, and as a result, different estimated amounts are calculated. In other words, even if the drawings received by the drawing receiving unit 48 are the same, the cost calculating unit 52 calculates different amounts of building costs according to the building specifications selected by the builder. Thereby, the builder can obtain the estimation results of various variations from one architectural CAD drawing depending on the selection of the architectural specification.

  Further, according to the building support apparatus 16, if there is no conforming member that perfectly matches the building CAD drawing uploaded by the builder and the building specification designated by the builder, an alternative member having an attribute that approximates the conforming member as much as possible is allocated. I'm. Thereby, even when there is no compatible member, it is possible to maintain the estimation accuracy of the construction cost while maintaining the consistency with the architectural CAD drawing. Also, according to the building support device 16, not only the estimated amount as the building cost is provided to the builder, but also the estimated amount for presenting the owner reflecting the profit amount arbitrarily set by the builder is provided to the builder, and the builder's estimation work Support further efficiency improvement.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications are possible depending on the combination of each component and each processing process, and such modifications are within the scope of the present invention. is there.

  For example, although not mentioned in the embodiment, the building support system 10 may include an information processing apparatus of a client who is a customer for a builder (referred to herein as a “client terminal”). The client terminal may be a PC, a mobile terminal, or the like, and is connected to the building support apparatus 16 via the communication network 18. In addition to the building support site for builders described in the embodiment, the building support device 16 publishes a website for a client (herein referred to as “client site”) on the Internet.

  In this modification, the building support apparatus 16 further includes an owner-addressed information receiving unit, an owner-addressed information providing unit, a builder-addressed information receiving unit, and a builder-addressed information providing unit. The builder designates a specific owner of the estimated property and uploads various information about the building (herein referred to as “building related information”) to the building support site. The owner-addressed information receiving unit receives building-related information addressed to a specific owner from the builder terminal 12 and records it in the property information 45. When the client logs in to the client site using the client terminal, the client-provided information acquisition unit acquires the building-related information uploaded by the builder to the client from the property information 45, and sets the building-related information. Send the page to the client terminal for display.

  The owner confirms the building related information from the builder, and if there is information to contact the builder, designates the builder and uploads the information (herein referred to as “contact information”) to the owner site. The builder addressed information receiving unit receives contact information addressed to a specific builder from the owner terminal and records it in the property information 45. When the builder logs in to the construction support site using the builder terminal 12, the builder-specific information providing unit acquires the contact information uploaded by the owner to the builder from the property information 45, and sets the contact information. The page is transmitted to the builder terminal 12 and displayed.

  According to this modification, it is possible to support the exchange of information between the builder and the owner, and it is possible to support the communication between the two. The building related information may include an estimate, a house drawing, and various inquiries to the owner. For example, the builder can provide an inquiry regarding building specifications, selection of individual members, and property information as building-related information to the owner, and the owner can provide an answer to the inquiry as contact information to the builder. The builder can confirm the answer result from the owner on the website, and can quickly change the breakdown details reflecting the owner's intention, change the provisioning member, select the product for formal quotation, select the product to be ordered, etc.

  In the embodiment, an example in which an alternative member is selected when there is no member having a size determined by the specific member information has been described. As another example, when there is no color member defined by the building specification, the member allocation unit 50 may search for a substitute member within a range in which the hue is shifted by a predetermined value on a known hue ring. When a plurality of alternative members are hit, a member having a color closest to the color of the compatible member (color determined by the building specifications) on the hue ring may be determined as the alternative member.

  A supplementary description screen 98 of FIG. 9 in the embodiment will be added. “Temporary enclosure installation” with the quantity “0” in the breakdown detail screen 98 is an item that may or may not be implemented in temporary construction. Temporary enclosures are typically attached at narrow sites, but may not be installed at large sites, and whether or not to be included in the estimated items is an item that should be left to the builder's judgment. Therefore, the estimation logic of the estimation logic holding unit 42 corresponds to a predetermined standard in the architectural CAD drawing, for example, a site area or a floor area is a predetermined size or more and a construction item (such as “temporary enclosure installation”). Put it on. Based on the architectural CAD drawing, the member estimation unit 62, for example, if the site area or floor area is larger than a predetermined size, the construction items such as “installation of temporary enclosures”, etc. are necessary for the construction of the building to be estimated. Estimate as The member allocation unit 50 allocates the number of construction items such as “installation of temporary enclosures” estimated by the member estimation unit 62 as “0” to the estimated building, and the cost calculation unit 52 sets the number of construction items to “0”. The cost is also set to “0”. Thereby, it is possible to promptly set the quantity and price to the builder who confirms the breakdown detail screen 98 or delete the item while preventing the omission of the estimated item.

  In addition, in the itemized detail screen 98, the item whose quantity is “1” (1 or more) and the cost is “0” (for example, two external scaffolds in FIG. 9) has no member price stored in the member information holding unit 36. (Or set as 0 yen), or an item whose construction price is not stored in the construction information holding unit 40 (or set as 0 yen). Since the member or construction of this item is an item considered essential for building construction, the member information holding unit 36 and the construction information holding unit 40 are recorded together with a flag indicating the necessity. The member allocation unit 50 confirms the essential flags of the member information holding unit 36 and the construction information holding unit 40, and allocates the members / constructions for which the essential flag is set for the building to be estimated. The cost calculation unit 52 records the cost as 0 yen for the allocated member / construction if the price is not stored in the member information holding unit 36 and the construction information holding unit 40. As a result, even if the price of parts and construction required for construction is not set, for example, even if the price is large and it is difficult to account for general expenses, it is included in the estimate. This prevents the omission of an estimated item. Further, it is possible to prompt the builder who confirms the breakdown details screen 98 to appropriately set the quantity and price.

  Although not described in detail in the embodiment, the builder terminal 12 of FIG. 1 includes a specification setting registration function, a drawing transmission function, an estimate information reception function, an estimate information display function, an estimate information change function, and a change information transmission function. Is provided. This function may be realized by web browser software installed in the builder terminal 12.

  The specification setting registration function displays a building specification selection screen 70 shown in FIGS. 5 and 6 on a predetermined display. In addition, the building specification for construction cost estimation is registered in the building support apparatus 16 by receiving input information to the screen from the builder and transmitting it to the building support apparatus 16. The drawing transmission function uploads a building CAD drawing depicting a building to be estimated to the building support device 16 in accordance with the operation of the builder. The estimate information receiving function receives approximate estimate information automatically created by the building support apparatus 16 based on the building CAD drawing from the building support apparatus 16, and the estimate information display function displays the approximate estimate information on the display.

  The rough estimate information is a member installed in the building to be estimated, and a member described in the architectural CAD drawing. Although not shown in the drawing, the building support device 16 indicates that the rough estimate information is used for building the target building. Indicates the estimated amount including the price of both of the members estimated autonomously. In addition, a plurality of estimated items such as a plurality of construction processes and a breakdown of members are included. Further, as shown in FIG. 9, the estimate information display function displays an estimate item having an unrecorded expense in a form to which information indicating the fact is added.

  The estimate information change function causes the display to display an edit screen for allowing the builder to input an expense for an estimate item having at least an unrecorded expense. This edit screen is also a screen for causing the builder to add items not yet recorded in the breakdown details. The change information transmission function causes the building support apparatus 16 to perform a re-estimation reflecting the change made by the builder by transmitting the information input by the builder to the editing screen to the building support apparatus 16. In this way, the builder terminal 12 supports the builder's work in cooperation with the building support device 16. Although not described in detail here, the builder terminal 12 further executes various functions related to the user interface to the builder described in the embodiment. For example, it further includes a function of receiving formal estimate information, construction process information, and ordering information from the building support apparatus 16, displaying / editing, and registering the changed contents in the building support apparatus 16.

  Any combination of the above-described embodiments and modifications is also useful as an embodiment of the present invention. The new embodiment generated by the combination has the effects of the combined embodiment and the modified examples. In addition, it should be understood by those skilled in the art that the functions to be fulfilled by the constituent elements described in the claims are realized by the individual constituent elements shown in the embodiments and the modified examples or by their linkage. .

  DESCRIPTION OF SYMBOLS 10 Building support system, 16 Building support apparatus, 24 Building DB, 26 Approximate estimation part, 28 Formal estimation part, 30 Process management part, 32 Order management part, 36 Member information holding part, 38 Specification information holding part, 46 Specification setting part 48 drawing accepting unit, 50 member allocating unit, 52 cost calculating unit, 54 estimate providing unit, 56 correction accepting unit, 58 profit setting accepting unit, 60 member extracting unit, 62 member estimating unit.

Claims (7)

A member information holding unit that holds information on a plurality of types of members that can be used in building construction;
A drawing reception unit for receiving a drawing of a building to be estimated;
As a member to be installed in the building to be estimated, an allocation unit for allocating a member described in the drawing from a plurality of types of members held in the member information holding unit;
A cost calculation unit that calculates the construction cost of the building to be estimated according to the price of the member allocated by the allocation unit;
With
The allocation unit is an estimation unit that estimates a member that is assumed to be used for building the building while being a member not described in the drawing according to the attribute of the building described in the drawing. An estimate support device characterized by including.   The estimation unit estimates the type and number of members that are not described in the drawing but are assumed to be installed in the room according to the type of room described in the drawing. The estimation support apparatus according to claim 1.   The estimation unit estimates the type and size of a member that is assumed to be installed in the building while not described in the drawing, according to the size of the building described in the drawing. The estimation support apparatus according to claim 1 or 2.   The allocation unit allocates a member that approximates the member described in the drawing when the member information holding unit does not hold information on a member that matches the member described in the drawing, 4. The estimation support apparatus according to claim 1, wherein the estimation support apparatus records the information together with information indicating that the allocation has been made.   5. The estimation support apparatus according to claim 1, wherein the estimation unit further estimates a construction required for building the building described in the drawing according to a predetermined standard. A transmission unit that transmits a drawing of a building to be estimated to a predetermined server in accordance with a user operation;
As a member to be installed in the building to be estimated, a member described in the drawing and a member that is not described in the drawing but is assumed to be used for building the building are allocated. A receiving unit that receives estimated information indicating the construction cost of the estimated building including the price of both of the members from the server;
A display unit for displaying the estimated information received by the receiving unit on a predetermined display device;
With
The estimate information includes a plurality of estimate items, and information indicating the fact is added to the estimate item having an unrecorded cost,
The information processing apparatus, wherein the display unit further displays on the display device a screen for allowing a user to input a cost for an estimated item having an unrecorded cost. Receiving a drawing of a building to be estimated;
As a member to be installed in the building to be estimated, a step of allocating a member described in the drawing from a plurality of types of members whose information is held in a predetermined storage area;
Calculating the construction cost of the estimated building according to the price of the member allocated in the step of allocating; and
The computer runs,
The step of allocating comprises the step of estimating a member that is assumed to be used in the construction of the building while being a member not described in the drawing according to the attribute of the building described in the drawing. An estimation support method characterized by including.

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