JP7715702B2 - Estimation decision support system - Google Patents

Description

The present invention relates to an estimate determination support system that helps determine the estimated costs for construction, repair, etc. of buildings, structures, etc.

Maintaining and preserving buildings, structures, and other facilities, such as buildings, schools, hospitals, research institutes, factories, and homes, requires annual repairs and replacements of old or damaged parts of these buildings or structures, as well as various related regular inspections. However, in many cases, repairs are requested when old or damaged parts are discovered, and the timing of regular inspections is managed individually. In other words, management for the maintenance and preservation of buildings, structures, and equipment is often carried out on a building or structure-by-structure basis, or on an equipment-by-equipment basis. As a result, construction and repair costs vary from year to year, resulting in variations in maintenance and preservation management costs, making it difficult to estimate maintenance and preservation costs for the following year and beyond.

When managing matters necessary for the maintenance and preservation of facilities, there are inventions, such as that described in JP 2018-124680 A (Patent Document 1), that devise methods for accessing managed documents, but there are no prior art documents that describe how to manage the budget required for the maintenance and preservation of facilities.

JP 2018-124680 A

This disclosure provides an estimate determination support system that, when preparing estimates for the management costs of maintaining and preserving various buildings, structures, etc. or equipment, aims to rationalize those management costs, prevents unnecessarily high expenses from being incurred, and can calculate reasonable estimates.

An estimate determination support system according to one aspect of the present disclosure is configured as follows: That is, the estimate determination support system has a storage means, a control means, and a display means, and includes the storage means for recording multiple management items representing the content of tasks and the content of raw materials, labor, etc.; a control means for calculating an approximate estimate, which is the total cost of raw materials, labor, etc. required to execute each of the multiple tasks, and for calculating from the approximate estimate a total estimate, which is the total cost of raw materials, labor, etc. required to execute all of the multiple tasks; and a display means for creating a construction management list that displays the content of the multiple tasks in a list format, and includes the approximate estimate in the construction management list.

According to one aspect of the present disclosure, a rough estimate is calculated, which is the total cost of raw materials, labor, etc. required to execute each of a plurality of tasks. Therefore, the calculation criteria for the costs of raw materials, labor, etc. required to execute a single task are clear and the calculation is accurate, thereby reducing the risk of formulating anomalous costs. Furthermore, a rough total estimate, which is the total cost of raw materials, labor, etc. required to execute all of the plurality of tasks, is calculated from the rough estimate. Therefore, the calculation criteria for the costs of raw materials, labor, etc. required to execute all of the tasks are clear and the calculation is accurate, thereby reducing the risk of formulating anomalous costs. Furthermore, the system includes a display means for creating a construction management list that displays the contents of a plurality of tasks in a list format. Because the rough estimate is included in the construction management list, the rough estimates of a plurality of tasks can be easily compared, making it easy to identify anomalous rough estimates.

An estimate determination support system according to one aspect of the present disclosure may be an estimate determination support system that includes the approximate total estimate amount in a construction management list.
The estimate determination support system according to one aspect of the present disclosure includes the approximate total estimate amount in the construction management list, so that the total cost for all tasks can be confirmed at a glance.

The estimate determination support system according to one aspect of the present disclosure may be an estimate determination support system in which the display means creates a construction management document displaying the contents of the task.
In an estimate determination support system according to one aspect of the present disclosure, the display means creates a construction management document that displays the contents of the task, so that the contents of the task can be managed by this estimate determination support system and the contents can be checked at any time.

The estimate determination support system according to one aspect of the present disclosure may be an estimate determination support system in which the display means creates a construction breakdown showing details of the raw materials, labor costs, etc.
In an estimate determination support system according to one aspect of the present disclosure, the display means creates a construction breakdown sheet that displays the details of the raw materials, labor costs, etc., so that the details of the raw materials, labor costs, etc. that specifically incur costs in performing a task can be managed by this estimate determination support system, and the details can be checked at any time.

An estimate determination support system according to one aspect of the present disclosure can be an estimate determination support system in which the storage means records names similar to names of raw materials, labor costs, etc. listed in a standard unit price table in association with the names of the raw materials, labor costs, etc.
In an estimate determination support system according to one aspect of the present disclosure, the storage means records names similar to names of raw materials, labor costs, etc. listed in a standard unit price table in association with the names of the raw materials, labor costs, etc., so that the standard unit price table can be referenced to identify raw materials, labor costs, etc. that specifically incur costs in performing a task. This makes it possible to provide an appropriate estimate by excluding expensive raw materials, labor costs, etc.

The estimate determination support system according to one aspect of the present disclosure may be an estimate determination support system in which the display means displays a standard estimate that takes into account the information in the standard unit price table, along with the rough estimate.
In an estimate determination support system according to one aspect of the present disclosure, the display means displays the standard estimate taking into account the information in the standard unit price table alongside the approximate estimate, making it easy to compare the cost entered by the contractor or other person with the cost based on the standard unit price table, and if there is a large difference in the amounts, it is easy to find out where the difference lies.

The estimate determination support system according to one aspect of the present disclosure may be an estimate determination support system that applies a standard estimate amount that takes into account information in a standard unit price table as the rough estimate amount and displays it.
In an estimate determination support system according to one aspect of the present disclosure, the rough estimate amount is displayed as a standard estimate amount that takes into account the information in the standard unit price table. Therefore, since the cost based on the standard unit price table is reflected instead of the cost entered by the contractor, etc., it is possible to obtain an estimate in which expensive and irregular estimates have been excluded in advance.

One aspect of the present disclosure makes it possible to effectively estimate the management costs required for the maintenance and preservation of various buildings, structures, etc., or the equipment and fixtures attached thereto.

FIG. 1 is a system configuration diagram of an estimate determination support system. FIG. 2 is a block diagram showing the functional configuration of a management server. FIG. 1 is a schematic diagram of a construction management document. This is a schematic diagram of the construction breakdown sheet. FIG. 1 is a schematic diagram of a construction management list. FIG. 10 is a flow diagram showing one aspect of creating a construction management list. FIG. 10 is a flow chart showing another aspect of creating a construction management list.

The estimate determination support system disclosed herein will be described in detail. This estimate determination support system is used for the management (hereinafter simply referred to as "management") of facilities such as buildings and structures, including buildings, schools, hospitals, research institutes, factories, and homes, as well as the equipment and other items provided at these facilities (hereinafter collectively referred to as "facilities, etc."). This management involves repairing, replacing, and maintaining outdated or damaged parts of these facilities, as well as various related tasks (hereinafter also referred to as "tasks") such as periodic inspections and surveys. Therefore, this system effectively and appropriately determines the estimated amount when calculating the costs associated with all of this work in advance and determining the estimated amount.

<System Configuration>
1 is a system configuration diagram of an estimate determination support system 10. This estimate determination support system (hereinafter also referred to as the "system") 10 includes 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 management of the facility (hereinafter referred to as the "facility operator"), contractor terminals 3 (3a, 3b, ...) used by those responsible for the on-site construction of the facility, such as those involved in construction work such as construction and repair (hereinafter collectively referred to as "on-site construction") for the maintenance and maintenance of the facility, and management companies that coordinate these contractors (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.

Management server 1 receives instructions from various terminals 2, 3, and 4 via network 5 and performs processing in accordance with those instructions. This management server 1 is configured with a central processing unit (CPU) that functions as a calculation device and 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.

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

The facility operator terminal 2 is a computer used by the facility operator, and can 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 a program is launched and connected to the network, it can retrieve and display data stored on the management server 1, send data entered via 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 other output via an output device. The computer that serves as this facility operator terminal 2 can be a personal computer, a mobile phone, a tablet, etc.

The contractor terminal 3 is a computer used by someone in charge of on-site construction work at a facility, etc., and can be one or more computers 3a, 3b, etc. This contractor terminal 3 is equipped with a communication device that can connect to and communicate with a network such as an in-house LAN or the Internet. When the program is launched and connected to the network, it can retrieve and display data stored on the management server 1, send data entered via 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 other output via an output device. The computer that serves as this contractor terminal 3 can be a personal computer, a mobile phone, a tablet, etc.

The system manager terminal 4 is a computer used by the system manager, and can be one or more computers 4a, 4b, etc. 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 a program is launched and connected to the network, it can retrieve and display data stored on the management server 1, send data entered via an input device to the management server 1, and receive data from the management server 1 and output it via an output device in the form of email, etc. The computer that serves as this system manager terminal 4 can be a personal computer or the management server 1.

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 it into specific items according to the purpose, and performs calculations such as aggregation.

The ID recognition means 12 has the function of identifying predetermined ID information for identifying persons who can access the estimate determination support system 10, and more specifically, in response to a request for access to the estimate determination support system 10 from various terminals 2, 3, and 4, 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 management by the requester, but is not permitted if the facility is not the facility to be accessed. Also, an access request from the construction operator 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 construction target. An example is where the presence or absence of access permission is determined based on a password.

The storage means 13 has a function of recording various elements necessary for the management of the maintenance and conservation of facilities as management items, and providing them as a management item database.
The display means 14 displays the management items recorded by the storage means 13 and the items processed by the control means 11 on the various terminals 2, 3, 4, outputs them as reports, and also displays the input screens on the various terminals.

The management server 1 can also have various other functions, such as an alert generation means that observes abnormal values and issues an alert, and a communication means that transmits various outputs such as alert information and reports to various output targets such as the facility operator terminal 2 and the construction operator terminal 3.

<System Functions>
The estimate determination support system 10 can create, display, or use various documents described below to help with estimate determination.

(1) Construction Management Manual The construction management manual indicates the details of the work, i.e., tasks, related to repairs, replacements, and maintenance of old or damaged parts of facilities, as well as various periodic inspections and surveys related to these.
The contents of a task include items (management items) necessary to identify the task, such as the task management number, task name, name and status of the facility etc. that is the subject of the task, countermeasures, location where the task will be performed, management source where the task will occur, installation date, whether the task needs to be performed, unit and quantity of task execution, approximate estimate, standard estimate, estimate proposed by the facility owner, notes, and others.

Here, the approximate estimate is the estimated cost required to execute the task calculated based on the construction breakdown sheet described below, the standard estimate is the estimated cost required to execute the task calculated based on the construction breakdown sheet taking into account the standard unit price table described below, and the estimate proposed by the facility owner is the estimated cost required to execute the task presented by the facility owner without relying on the construction breakdown sheet.
These items vary depending on the type of management of the facility, etc., and are not limited to the above items, and may include other items, and it is not necessary to have all of the above items.

An example of a construction management manual is shown in Figure 3. The task described in the construction management manual shown in Figure 3 is waterproofing work for exposed asphalt on the second floor of the XX Cultural Center, and the following description is included in response to the above items.
The management source from which the task will occur is "business plan," the task management number is "D-3," the task name is "exposed asphalt waterproofing," the name of the facility etc. that the task will target is "XX Cultural Center," the location where the task will be performed is "second floor," the condition of the facility etc. that the task will target is "deterioration observed throughout," the countermeasure is "exposed asphalt waterproofing renewal," the installation date is "May 2000," the necessity of task execution is "progress," the unit/quantity for task execution is " ^57m2 ," the estimated cost is "2,317,000 yen," and the remarks are "attached document XX." Some of the above management items are shown in Figure 3.

In addition, for some of the above items, the following items are provided to provide more detailed explanations of the contents:
The name of the task is "Renovation work: consider whether to renew once a year," the location where the task will be carried out is "targeting the entire second floor," the condition of the facility etc. that will be the target of the task is "there is deterioration in places throughout the entire second floor. The degree of deterioration varies depending on the location," the countermeasure is "workers will need to check the entire second floor and take the necessary measures," and the notes are "attached document XX was created by XX company on November 2nd."

In this way, by creating a construction management manual for each task, all the information required for each task can be managed in a single document called the construction management manual, and by referencing this construction management manual, you can find out all the details about that task.

(2) Construction breakdown sheet The construction breakdown sheet shows the details of the items (also called "raw materials, labor costs, etc.") that incur costs in carrying out a task, such as the raw materials or parts (also called "raw materials, etc.") used in a task, or the labor costs for carrying out that task.
The details of raw materials or labor costs, etc., include the items (management items) related to those raw materials or labor costs, etc. If the construction management manual included all the various details that incur costs in carrying out tasks, the construction management manual would become cumbersome, so the construction breakdown sheet is a separate sheet that breaks down the costs incurred from the construction management manual.

Therefore, the contents of the construction breakdown sheet include items (control items) necessary to identify the breakdown of costs, such as matters related to raw materials or labor costs, etc., and may include the control number, name of the construction or repair, etc., type, name of raw materials, etc., quantity, unit, unit price, total amount, approximate estimate, and remarks.
Alternatively, the standard name, standard unit price, standard total amount, and standard estimated amount of raw materials, etc. may also be mentioned.

Here, the total amount is the estimated amount for each construction work, repair, etc., and the approximate estimate is the estimated amount for all construction work, repair, etc., obtained by adding up all the estimated amounts for each construction work, repair, etc. Also, the standard names of raw materials, etc. are the names of raw materials, etc. listed in the standard unit price table described below, the standard unit price is the unit price listed in that standard unit price table, the standard total amount is the estimated amount for each construction work, repair, etc. based on the standard unit price, and the standard estimate is the estimated amount for all construction work, repair, etc., obtained by adding up all the estimated amounts for each construction work, repair, etc. based on the standard unit price.
These items vary depending on the task, and are not limited to the above items, and may include other items, and it is not necessary to have all of the above items.

An example of a construction breakdown sheet is shown in Figure 4. The construction breakdown sheet shown in Figure 4 lists the costs of raw materials and other materials required for the "Exposed Asphalt Waterproofing Work on the Second Floor of the XX Cultural Center" identified in the construction management document shown in Figure 3. The construction breakdown sheet shown in Figure 4 includes the following entries corresponding to the above items:

The name of the work or repair is "Asphalt Exposure Waterproofing Work," the type of work is "High-Pressure Cleaning of Existing Waterproof Surfaces,""Existing Asphalt Removal,""Drain Outlet Repair Drain Installation,""Deaeration Pipe Installation,""Urethane Coating Waterproofing,"etc.; the names of materials are "Strainer,""StainlessSteel,""Polymat XX, XX Company,"etc.; the quantity is a number such as "114.0" or "66," the unit is " ^m³ " or "location,"etc.; the unit price is the unit price of each part or work, such as "¥450" or "¥3,000," and the total amount is the product of the quantity and unit price for each type of work, such as "¥51,300" or "¥19,800." There are no notes, but you can add any necessary additional information. There is also a rough estimate column for the total cost of each work, allowing you to see the total estimated cost of the work for which the construction management document is being created. In FIG. 3, the estimated price is listed as "2,317,000 yen."

(3) Construction Management List The construction management list is a list of multiple tasks shown in the construction management manual, and is a table of selected items showing the contents of the tasks in the construction management manual. In other words, it displays the contents of multiple tasks side by side.

The content of the tasks shown in the construction management list can be almost the same as the content of the tasks shown in the construction management document, and examples of items (management items) include the task management number, task name, name and status of the facility etc. that is the subject of the task, countermeasures, location where the task is performed, management source where the task occurs, installation date, whether the task needs to be performed, unit and quantity of task execution, estimated amount, standard estimated amount, estimate amount proposed by the facility owner, estimated total estimate amount, standard total estimate amount, total estimate amount proposed by the facility owner, notes, and others.
Here, the approximate estimate is the total amount of the estimates for each task, and the standard estimate is the total amount of the estimates for each task taking into account the amounts in the standard unit price table described below. The estimate proposed by the facility owner is the total amount of the estimates for each task presented by the facility owner without relying on a work breakdown sheet. The approximate total estimate is the total amount of the estimates for all tasks, calculated by adding together the approximate estimates for each task. The standard total estimate is the total amount of the estimates for all tasks, calculated by adding together the standard estimates for each task. The total estimate proposed by the facility owner is the total amount of the estimates for all tasks, calculated by adding together the standard estimates for each task.
These items vary depending on the type of management of the facility, etc., and are not limited to the above items, and may include other items, and it is not necessary to have all of the above items.
In addition, when simply referring to management items, this includes items that indicate the content of tasks shown in the construction management list, as well as items related to raw materials or labor costs, etc. shown in the construction details sheet, and items necessary to identify tasks shown in the construction management document.

An example of a construction management list is shown in Figure 5. The construction management list shown in Figure 5 shows a list of tasks scheduled to be carried out in 20XX at facilities owned by Company A, and one of the tasks is "Waterproofing work on exposed asphalt on the second floor of the XX Cultural Center," which is shown as control number D-3 in the construction management document shown in Figure 3.
The following items are written in the row indicating the task indicated by the management number D-3.
The management source from which the task will occur is "Business plan," the task management number is "D-3," the task name is "exposed asphalt waterproofing," the name of the facility etc. that the task will target is "XX Cultural Center," the location where the task will be performed is "second floor," the condition of the facility etc. that the task will target is "deterioration is evident throughout," the solution is "exposed asphalt waterproofing renewal," the installation dates are "2000" and "5," the need for task execution is "progress," the unit of task execution is "M2," the quantity is "57," the estimated amount is "23,170,000 yen," and the remarks are "attached document XX."

The same description as that shown for the control number D-3 is also used for tasks assigned with other control numbers. For example, the control number D-2 shows the content of the task "Removal of the CS antenna at △△ Cultural Center."
The estimated total price is listed as "203,584,032 yen," and the standard total price is listed as "195,165,230 yen."

The difference between the items recorded in the construction management manual shown in Figure 3 and the construction management list shown in Figure 5 is that, because the list has limited items to include, some of the important items recorded in the construction management manual are recorded in the construction management list. For example, in the construction management manual in Figure 3, the column for the condition of the facility, etc. that is the target of the task states, "Deterioration is evident throughout. Deterioration is evident in places throughout the second floor. The degree of deterioration varies depending on the location." However, in the construction management list in Figure 5, it simply states, "Deterioration is evident throughout."

Just by looking at this construction management list, we can see that the task assigned the above control number D-3 is, "In Company A's business plan, exposed asphalt waterproofing work was scheduled for the second floor of the XX Cultural Hall, which was installed in May 2000, and based on the results of an investigation that showed deterioration throughout the building, it was decided to renew the exposed waterproofing work covering an area of 57 ^m2 ." Similarly, the content of tasks assigned other control numbers can be understood to the same extent as the task assigned control number D-3.

By creating a construction management list, you can cover all tasks required for managing your facilities, etc., and categorize them from any desired perspective. For example, if you cover all tasks and divide them into one-year periods, you can list the tasks required for managing facilities, etc., in the year 2000. Alternatively, you can categorize by facility, etc., or by task name, etc.

(4) Standard Unit Price List The standard unit price list displays the standard prices and standard names of various raw materials, etc. It lists the prices set for raw materials, etc. approved by the facility owner, such as parts that have already been negotiated with manufacturers and can be used under favorable conditions. Therefore, if the raw materials, etc. listed in the standard unit price list can be used at that unit price, the cost can be determined to be appropriate. The names and prices of raw materials, etc. displayed in this standard unit price list are recorded in the storage means 13.

<System flow>
The estimate determination support system 10 creates, displays, or uses the above document in accordance with the following flow.

First flow (Fig. 6):
The first flow is shown in FIG. 6 and will be described below.

1. Preparation of construction management manual (s11)
When the facility operator inputs specific details 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 details are recorded as management items in the storage means 13 and are 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 details 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.

However, before the construction details are prepared, no rough estimates are provided, and only the estimates proposed by the facility owner, if any, are recorded. This is because the estimates cannot be calculated until the construction work is detailed.
More specifically, the construction management document creation instruction is an instruction to view or print the construction management document, and in response to the view instruction, the display means 14 displays the construction management document on the display of the facility operator terminal 2, and in response to the print instruction, the control means 11 prints the construction management document created by the display means 14 through the printer of the facility operator terminal 2. This step is shown as s11 in Figure 6.

2. Preparation of construction details (s12)
When the contractor inputs specific details to be written in each item of the construction breakdown sheet from the contractor's terminal 3 through an input form previously created by the display means 14, the input details are recorded as management items in the storage means 13 and accumulated in the record database. Then, in accordance with the contractor's instructions to create the construction breakdown sheet from the contractor's terminal 3, the control means 11 calls up the details recorded as each item in the storage means 13. The control means 11 calculates the total price of the raw materials, etc. from the unit price and quantity of the raw materials, etc., and also calculates the grand total price, which is the sum of the prices of multiple raw materials, etc. Then, the display means 14 outputs the construction breakdown sheet in a format such as that shown in Figure 4.

More specifically, the instruction to create a construction breakdown sheet is an instruction to view or print the construction breakdown sheet, and in response to a viewing instruction, the display means 14 displays the construction breakdown sheet on the display of the contractor terminal 3, and in response to a printing instruction, the control means 11 prints the construction breakdown sheet created by the display means 14 via the printer of the contractor terminal 3.
Since a construction breakdown sheet is created for each task, multiple construction breakdown sheets can be created for multiple tasks. This step is shown as s11 in FIG.
By creating the work breakdown sheet, the cost for the task can be estimated, and this estimated cost is reflected in the estimated cost of the work management document. This step is shown as s14 in FIG.

3. Creation of construction management list (s13)
When a facility operator searches for required items according to the purpose of managing a facility, etc., from the facility operator terminal 2, the control means 11 extracts from the storage means 13 multiple tasks for each construction management document that meet the conditions, extracts from the contents written in the construction management document the contents within which it has been determined that the contents should be included in the construction management list, and the display means 14 creates a construction management list in list format.

It is possible to decide which items from the construction management document to include in the construction management list as appropriate, but one example is to omit detailed explanations from the construction management document that would require lengthy explanations, as explained in the difference between Figures 3 and 5. It is also possible to not display some items from the construction management document in the construction management list.
The approximate estimate for each task is displayed in the approximate estimate column, and the total estimate is displayed by the display unit 14. Note that this first flow does not use the standard unit price table (described later), and therefore the construction management list does not display items that take the standard unit price table into account, such as the standard total estimate. This step is shown as s13 in Figure 6.

4. Linkage of the three documents The construction management document, construction breakdown sheet, and construction management list are linked by the task management number.
The estimated amount column in the construction management document is initially blank, but once the construction breakdown sheet is created and the total amount of the construction work related to that task is determined, it will be displayed in the estimated amount column in the construction management document. Similarly, the estimated amount in the construction breakdown sheet will be reflected in the estimated amount column for each task in the construction management list.
That is, the control means 11 applies the estimated amount of the construction breakdown sheet recorded in the storage means 13 to the estimated amount of the construction management sheet or construction management list in accordance with the facility owner's instruction to display the construction management document or the instruction to create a construction management list. When creating a construction management list, the control means 11 also calculates the estimated total amount of all tasks by adding up the estimated amounts of each task.

These documents can be output according to the output commands of authorized operators such as the system manager, facility manager, or construction worker, or by linking documents together. For example, by having the operator click on the notes column of the construction management document or construction management list as an instruction to output a construction breakdown sheet, the control means 11 can display the construction breakdown sheet corresponding to that task on the display means 14. Alternatively, by having the operator click on the management number column of the construction breakdown sheet as an instruction to output and display the construction management document, the control means 11 can display the construction management document corresponding to that task on the display means 14.

The estimated costs required to carry out each task are determined by creating an individual work breakdown sheet, and this amount can be displayed as an estimated amount in the work management document or work management list. This means that the estimated amounts for multiple tasks can be compared within the list, making it easy to check the cost differences between tasks. This makes it easy to spot irregular estimated amounts.

Second flow (Fig. 7):
The second flow is shown in Figure 7 and will be described below. The second flow has a step in which the contents of the raw materials, etc. in the construction breakdown sheet are compared with the standard unit price table, and the entries in the standard unit price table are reflected in the construction breakdown sheet. This flow is added to the first flow to form the second flow. Therefore, steps s11 to s13 described in the first flow are the same in the second flow, so their description will be omitted.

5. Check the construction details against the standard unit price list (s15)
The names written in the name column of the work breakdown sheet for raw materials, etc. are compared with the names in the standard unit price table. That is, names similar to names defined in the standard unit price table are pre-registered in the storage means 13, and the control means 11 determines whether the name written in the name column of the work breakdown sheet for raw materials, etc. matches or is similar to this similar name. If it matches or is similar, a new name in the standard unit price table linked to that name is assigned. For example, air conditioner and air conditioner are registered as similar names, and if the work breakdown sheet lists "air conditioner" and the name defined in the standard unit price table is "air conditioner," the name written in the work breakdown sheet is assigned to "air conditioner."

A more specific method is to pre-register several names similar to those specified in the standard unit price table, and if the name listed in the raw material name column of the construction details sheet matches one of these similar names, the name specified in the standard unit price table is assigned. With this first method, the similar names must be registered in advance, and if they do not match the registered similar names, they will not be assigned to the name specified in the standard unit price table.

The second method is to equip the control means 11 with artificial intelligence and operate the artificial intelligence using the registered similar names as teaching data. In this case, even if a similar name that is slightly different from the registered similar name is listed in the name column of the raw materials, etc. of the construction details, it may be assigned to the name specified in the standard unit price table.
It is preferable to adopt the second method in order to eliminate the inconvenience of not being able to display and allocate to the unit price defined in the standard unit price table due to variations in notation.

The assigned name can be written on the construction details sheet together with the original name, or the assigned name can be written on the construction details sheet instead of the original name. You can choose which display to use in advance.
Similarly, the unit price based on the assigned name can be listed on the construction breakdown sheet together with the unit price based on the original name, or the unit price based on the assigned name can be listed on the construction breakdown sheet instead of the unit price based on the original name. This can be done by deciding which display to select in advance.

When listing both, columns for the standard name of raw materials, etc., standard unit price, standard total amount, and standard estimated amount are provided along with the name, unit price, total amount, and estimated amount of the raw materials, etc. When replacing, the replaced content is recorded in the columns for the name, unit price, total amount, and estimated amount of the raw materials, etc., and there is no need to provide columns for the standard name, standard unit price, standard total amount, and standard estimated amount of the raw materials, etc. This step is shown as s15 in Figure 7.

When various contractors write the names of raw materials, etc. in the construction breakdown sheet, they may use a variety of names for the raw materials, and the same raw materials may be written differently. This makes it difficult to distinguish whether the unit prices are different for different raw materials, or whether the unit prices are different for the same raw materials. Therefore, it is preferable to use the same name for the same raw materials.

6. Linkage of the three documents As shown in the first flow, in the second flow the construction management document, construction breakdown sheet, and construction management list are linked by the task management number.
However, in the second flow, since a check is made against the standard unit price table, the contents of the construction breakdown sheet created in accordance with the standard unit price table are reflected in the construction management document and construction management list.
The approximate estimate column of the construction management document is initially blank, but once a construction breakdown sheet is created and the approximate estimate for the work etc. related to that task is determined, it will be displayed in the approximate estimate column of the construction management document. However, in this case, if an approximate estimate calculated from the unit price assigned using the standard unit price table, i.e., the standard estimate, is also entered, the standard estimate will be entered along with the approximate estimate.

The same applies to the construction management schedule; if an approximate estimate is calculated taking into account the standard unit price table, that will be the approximate estimate, and if it is displayed separately, the standard estimate will be listed alongside it. If an approximate estimate is calculated taking into account the standard unit price table, the approximate total estimate will also be calculated from that value, and if it is displayed separately, the standard total estimate will be listed alongside it.
In other words, the control means 11 applies the approximate estimate or standard estimate of the construction breakdown sheet recorded in the memory means 13 to the approximate estimate or standard estimate of the construction management sheet or construction management list, and the approximate total estimate or standard total estimate, in accordance with an instruction from an authorized operator to display the construction management document or create a construction management list.

Compared to the first flow, the second flow has the following advantages in addition to those of the first flow. That is, because the cost required to execute each task (standard estimate) is calculated based on the standard unit price of raw materials, etc., it is possible to avoid using expensive raw materials, etc., and prevent estimated costs from becoming too high.

Other flows:
Another example is a flow in which a construction management list is created without creating a construction management manual. In other words, the items to be included in the construction management manual are created directly in the construction management list.

More specifically, the construction management list is created when the facility operator inputs specific details to be entered in each item of the construction management list from the facility operator terminal 2 through an input form previously created by the display means 14, and the input details are recorded as management items in the storage means 13, and are accumulated in the record database. Then, in accordance with the facility operator's instruction to create the construction management list from the facility operator terminal 2, the control means 11 calls up the details recorded as each item in the storage means 13, and the display means 14 outputs the construction management list in a format such as that shown in Fig. 5, for example.
However, even in this case, before the construction breakdown sheet is prepared, no rough estimate or standard estimate is written, and only the estimate proposed by the facility owner, if any, is written. This is because the estimate cannot be calculated until the construction work is concrete. The construction breakdown sheet is prepared in the same way as shown in the flow chart above.

The above embodiments are illustrative of the present invention, and modifications to the embodiments, additions to known technologies, and combinations thereof may be made without departing from the spirit of the present invention, and such technologies are also within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Management server 2, 2a, 2b, 2c Facility operator terminal 3, 3a, 3b, 3c Construction operator terminal 4, 4a, 4b, 4c System manager terminal 5 Network 10 Estimate determination support system 11 Control means 12 ID recognition means 13 Storage means 14 Display means 15 Other means

Claims (4)

An estimate determination support system having a storage means, a control means, and a display means,
the storage means records tasks, which are operations related to the management of facilities, which are buildings or structures, or parts thereof, and management items, which are elements necessary for the management;
The display means creates a construction management document that identifies the task, a construction breakdown that indicates matters including the contents and costs of raw materials or parts used in the task, and a construction management list that displays a list of the tasks together when there are multiple tasks,
the control means calculates an approximate estimate, which is the total of costs required to execute one of the tasks, and calculates an approximate total estimate, which is the total of costs required to execute the multiple tasks when there are multiple tasks;
In addition, the storage means records the standard prices and standard names of the raw materials and parts that make up the standard unit price table, and records the standard names in the standard unit price table in association with the names of the raw materials or parts shown in the construction details sheet,
The control means compares the names of the raw materials or parts shown in the construction details sheet with the names in the standard unit price table, and if they match or are similar, assigns the linked name in the standard unit price table to the name of the raw materials or parts shown in the construction details sheet;
The display means displays the name of the standard unit price table on the construction details sheet and includes the rough estimate amount in the construction management list. The estimate determination support system of claim 1, in which the rough estimate amount is not entered before the construction breakdown sheet is created, but is entered after the construction breakdown sheet is created. The estimate determination support system of claim 1 or 2, wherein the display means displays the rough estimate together with a standard estimate that takes into account the information in the standard unit price table. 3. The estimate determination support system according to claim 1, wherein said display means displays a standard estimate amount that takes into account the information in said standard unit price table as said rough estimate amount.