JP2003308428A - Building maintenance cost-considered long-term commercial profit simulation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a (building maintenance cost-considered) commercial profit simulation device capable of precisely simulating or evaluating a long-term commercial profit, maintenance cost, maintenance time or the like when leasing a building before constructing the building. <P>SOLUTION: In this commercial profit simulation device for simulating the commercial profit according to the years of the building, the building is designed so that the useful lives of members and parts constituting the building are collected to any one of a plurality of useful lives having different years, and maintenance is periodically performed very plurality of useful lives to repair or replace the members and parts. This device has a database 4 for storing the useful lives of the parts and members of the building and costs required for maintenances in association with the parts and members. The maintenance time of a part and/or member of the building is detected from the useful lives stored in the database, and the maintenance costs for the parts and/or members having the same maintenance time are integrated based on the costs stored in the database. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long-term profitability simulation apparatus that considers a building maintenance cost for evaluating profitability of a room or a building where the building itself is rented.

[0002]

2. Description of the Related Art Conventionally, when building a building and attempting to rent the building or room, the landlord should make an estimate from the housing construction company and also consider the current rental cost before starting the construction. Start construction. Therefore, the accuracy was poor when considering the profitability.

[0003]

The maintenance of a house after the construction of the house is ad hoc and the repair is usually performed when an abnormality occurs somewhere in the house. Therefore, the landlord cannot know when the house needs to be repaired and how much it will cost.

Further, although a general financial profit simulation device has been conventionally known, maintenance cost such as repair after housing construction or renovation cost is not taken into consideration. There is also the problem of poor accuracy.

Therefore, an object of the present invention is to accurately simulate or evaluate the long-term profitability, maintenance cost, maintenance time, etc. when renting a building before building the building (considering the building maintenance cost). Type long-term) to provide a profitable simulation device.

[0006]

[Means for Solving the Problems] In order to achieve such an object, in a profitable simulation device for simulating profitability according to the age of a building, the useful lives of members and parts constituting the building are different from each other. Is designed to repair or replace parts and parts by regularly performing maintenance for each of these multiple lives, and the service life of parts and parts of the building. And a database that stores maintenance costs associated with the parts and members, a maintenance time detection unit that detects the maintenance time of the building parts and / or members from the service life stored in the database, and the maintenance time. Maintenance for the same parts and / or components An integrating means for accumulating costs based on the costs stored in the database; and an output means for visually outputting the maintenance timing detected by the maintenance timing detecting means and its parts and / or members, and the total cost required for the maintenance. It is characterized by having

According to a second aspect of the present invention, in the profit simulation device according to the first aspect, the maintenance type is stored in the database in association with the building and / or part, and the output means is used for maintenance. The feature is that the type is also output.

According to a third aspect of the present invention, in the profit simulation device according to the first aspect, the accumulating means calculates the repair cost until the members and / or parts reach their useful lives, and at the same time, the building plan and the building are constructed. Input means for inputting initial conditions consisting of construction cost, financial plan, income condition, rental calculation condition, common condition and other conditions, and initial condition input from the input means and the calculating means, It further comprises an information processing means for calculating cumulative income and total assets by using an arithmetic expression having a repair cost until reaching the useful life as a parameter, and making the calculation result a profit simulation result. To do.

[0009]

DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows the system configuration of a long-term profitable simulation device considering building maintenance cost to which the present invention is applied. In FIG. 1, reference numeral 1 is a (long-term maintenance cost-type long-term) profitability simulation device that simulates the profitability when a rental house including a room is constructed, and at the same time simulates items that require maintenance, timing, costs, etc. . A commercially available general-purpose computer, for example, a personal computer or a workstation can be used as the profit simulation device 1.

Reference numeral 2 is an input device for inputting initial conditions necessary for executing the above simulation. A keyboard and a mouse are used as the input device 2.

Reference numeral 3 denotes a display device, which displays the results of the simulation shown in FIG. 5 regarding profitability and the information input from the input device 2. Reference numeral 4 is a database, which stores information necessary for the simulation. In the present embodiment, for example, the number of parts and members, the quantity, the unit price, the unit price, the unit price, and the like, are associated with the building member names and part names necessary for construction for each building type (for example, a planning pattern such as layout).
Various information such as service life and repair costs is registered in the database. The inventor of the present application has noticed that the time to reach the useful life of the members of the house is the time to be repaired,
The invention has been invented as a profitable simulation device that collects the names of members and / or parts having a common service life and accumulates the repair costs for those parts and members to simulate items, costs, timing, etc. that require maintenance. Further, the present invention has invented a profitable simulation device which calculates the cost required for maintenance by using the simulation function for maintenance and also simulates the profitability of a rented house (building) over a long period of time.

Reference numeral 5 denotes a printer, which prints out a simulation result regarding maintenance in the form of FIG.
Note that the sheet shown in FIG. 4 is graduated in advance over the expected useful life of the building, and the member names included in the exterior member and the buried facility member, which are the maintenance target parts, are printed in the direction orthogonal to the graduated scale in advance. Along the direction of the scale, a graphic 10 indicating the maintenance time of each member included in the exterior member and the embedded equipment member is printed in advance, and an entry column (blank) 11 for entering the maintenance cost is printed in advance. ing. The maintenance cost obtained by simulation is printed by the printer 5 in the maintenance cost entry field of the sheet.

Further, the above-mentioned sheet is provided with an entry column for entering information on the building to be maintained. This entry field may be left blank, or the printer 5 may print the predetermined information.

A simulation process executed in such a system configuration will be described with reference to FIGS. 2 and 3. FIG. 2 shows the processing contents of a program relating to maintenance executed by the profitability simulation apparatus 1. FIG. 3 shows the processing contents of a program that simulates long-term profitability. Both programs are stored in a storage device in the profit simulation device, for example, a hard disk, and the program is executed by the CPU in the profit simulation device 1.

When a user, for example, a sales person of a home sales company or a building owner wants to know the maintenance cost and maintenance time, he / she gives an instruction to start the program of FIG. 2 from the input device 2. As a result, the program shown in FIG. 2 is executed. In addition, it is assumed that the specification information regarding the constructed building (the information regarding the design and construction, including the members used, the number of pieces, the service life, etc. is included in these information) is registered in the database 4 in advance. To do.

When the user inputs a name, an address, etc. as initial conditions, the CPU of the profitability simulation apparatus 1 searches the database using the name, address, etc. as a query, and retrieves the specification information of the corresponding building. The search result is temporarily stored in the memory inside the device.

The CPU retrieves the maintenance time (repair or replacement time) of the parts for each of the following classifications from the specification information. In this embodiment, the basic structure, roof / waterproof,
Classify building members, parts, or repair items into outer wall waterproofing, openings, external accessory parts, buried equipment, and exposed equipment.

The basic frame structure includes a main steel frame, a reinforced concrete foundation, a floor board, a roof board, an outer wall board and the like.

The roof / waterproof includes roof and various sheet waterproofing.

Outer wall waterproofing includes outer wall spray painting and sealing.

The opening includes a front door, a sash frame, and the like.

The external accessory parts include a shutter, a shutter, a ventilation hood, an outer staircase, and the like.

The buried equipment includes water supply pipes, hot water supply pipes, drain pipes and the like.

The exposure equipment includes a kitchen set, a vanity, and the like.

When the CPU picks up each item of each classification in order, it retrieves data such as the unit price of the member, the repair cost, the type of replacement or repair stored in the database 4,
Accumulate repair or replacement costs. In the present embodiment, the service life of the building members is designed to be aggregated, for example, 15 years and 30 years. Therefore, the members and parts having the service life for each year are detected and detected on the database 4. Maintenance costs for repair / replacement of parts and members are integrated by the CPU, and the integrated result is stored in the internal memory (steps S20 → S30).

Finally, the CPU prints out the accumulated result, that is, the maintenance time for each item, the maintenance cost at that time, and the type of whether the maintenance is replacement or repair (step S40).

With this printed sheet, the user can see the 15th year, the 30th year, and the 45th year, which are the cycles of the useful life of each part member.
You can know that maintenance is required in the first year, the maintenance item, type, and total cost.

When a user, for example, a salesperson of a home sales company or a person who wants to build a building wants to know the profitability of building construction, he / she gives an instruction from the input device 2 to start the program shown in FIG. As a result, the program shown in FIG. 3 is executed. The user first inputs initial conditions. The initial conditions are a building plan, a construction cost, a financial plan, an income condition, a rental calculation condition, a common calculation condition, and other conditions. The building plan is information indicating the contents of the building to be built, such as the building scale (number of units), floor area, and construction time. The construction cost is the cost required for construction, and the financial plan is the presence or absence of a loan, the interest rate of the loan, and the number of years.

The income condition is the income amount of a month or year obtained when renting a room or the like. The rental part calculation conditions are the calculation conditions related to the simulation, such as contract years, general and administrative expenses and their upsizing rates, and tenant replacement years.

The common calculation conditions are calculation conditions relating to the entire building such as tax and public dues on land, insurance premiums, and years of cost depreciation. Other conditions are whether or not the building plan is changed and when.

Since the parameters are displayed on the parameter item image display device 3 showing the calculation conditions, the user inputs the conditions for the corresponding items from the input device 2 (step S10).
0). In the present embodiment, the parameter values φ1, φ2. ． ． ． And the number of years t, the cumulative income and total assets are calculated. Therefore, F (φ1, φ
2. ． ． , T) is prepared, and by substituting the values of the parameters input above into this function,
Calculate annual spending, cumulative income and total wealth. If the above-mentioned number of years t reaches a predetermined service life of a member, for example, when it reaches 15 years, 30 years, 45 years, etc., the member needs to be replaced and repaired. The formula to calculate is used in the formula defining the above function.

In a general profit simulation not limited to a house, only the initial investment cost, cost depreciation, and annual income are used as parameters, but in the present embodiment, the peculiarity of a building is taken into consideration. The component reaches its useful life, for example 15, 30, 45. ． ． CPU repair costs (maintenance costs) that occur in the first year
Is automatically calculated according to the above, and is incorporated into the profitable simulation as one parameter in the above input condition. Therefore, a more profitable simulation can be performed.

In addition to the above-mentioned uniquely determined repair cost, the present embodiment considers that the interior of the building is refurbished or reconstructed at the request of the builder so that it can be compared and examined. When it is instructed to change the specifications of the building after construction in the step of inputting the initial conditions for the specification change and the timing (YES determination in step S110), the change condition, that is, the contents of renovation and cost are input ( Step S115).

When the above conditions are input, the CPU of the profit simulation device 1 has the values of the parameters indicating the given conditions, the predetermined functions (calculation formulas), and the information stored in the database 4. Is used to calculate the expenditure, cumulative total income and total property for each year, and stored in the internal memory of the profit simulation device 1 (step S120).

The simulation result is printed out from the printer 5 in the form as shown in FIG. 5 (step 13).
0). This form is an example in which cumulative income and total assets are printed in a curve for each fiscal year, and profitability comparison is made between the case of remodeling in the 30th year, the case of changing a plan, and the case of rebuilding.

In addition to the above embodiments, the following modes can be implemented. 1) In the above embodiment, the database 4 is external to the profit simulation device 1, but the system of FIG. 1 can be realized by a notebook computer. Further, the input device 2 and the profitable simulation device 1 may be connected by a telephone line or the Internet. In this case, the simulation results are displayed and printed on the input device 2 side. 2) Further, the above system may be a LAN connection, and a plurality of input devices may be connected to the LAN. 3) In the above-described embodiment, the data input in the maintenance cost simulation process and the data input in the profitability simulation process are different, but the building specification information can be shared. In this case, a plurality of building models are prepared, and the database 4 stores the usage information of each model, the parts requiring maintenance, and various information related to parts. Therefore, the user can set the building specification information only by specifying the type of the building model.

Various modifications other than the above are possible,
These modifications are within the technical scope of the present invention as long as they are in accordance with the technical idea described in the claims.

[0039]

As described above, according to the present invention, it is possible to know the timing and cost of maintenance of a building for the purpose of renting, etc., and it is possible to accurately perform a profitable simulation in consideration of maintenance cost. It can be carried out.

Further, if the profitable simulation device is realized on a portable notebook computer, a house sales company can perform a simulation in front of a person who wants to build a house, and the house building can be examined in more detail and quickly. It is also possible.

[Brief description of drawings]

FIG. 1 is a block diagram showing a system configuration of an embodiment of the present invention.

FIG. 2 is a flowchart showing a processing procedure executed by the profit simulation device 1.

FIG. 3 is a flowchart showing a processing procedure executed by the profit simulation device 1.

FIG. 4 is an explanatory diagram showing an output result of the profit simulation device 1.

FIG. 5 is an explanatory diagram showing an output result of the profitability simulation apparatus 1.

[Explanation of symbols]

1 Profitability simulation device 2 input devices 3 display devices 4 database 5 printers

Claims (3)

[Claims] 1. A profitability simulation apparatus for simulating profitability according to the age of a building, wherein the service life of members and parts constituting the building is one of a plurality of service lives having different years, It is designed to repair or replace parts and parts by regularly performing maintenance for each of these multiple lives, and store the service life and maintenance costs of building parts and parts in association with the parts and parts. Database, the maintenance time detecting means for detecting the maintenance time of the parts and / or members of the building from the service life stored in the database, and the maintenance cost for the parts and / or members having the same maintenance time. Based on the cost stored in And integrating means for integrating for the maintenance time maintenance time detected by the detecting means and the site and / or members, profitability simulation apparatus being characterized in that comprises an output means for the total cost of maintenance for visual output. 2. The profitability simulation apparatus according to claim 1, wherein the database further stores a type of maintenance in association with the building and / or part, and the output unit also outputs the type of maintenance. A profitable simulation device characterized by the above. 3. The profit simulation device according to claim 1, wherein the accumulating means calculates repair costs until the members and / or parts reach their useful lives, and at the same time, construction plans, construction works costs, and financial plans. Input means for inputting initial conditions consisting of income condition, rental calculation condition, common condition and other conditions, and reaching the useful life calculated by the initial condition input by the input means and the accumulating means A profit simulation apparatus, further comprising: an information processing unit that calculates cumulative income and total property using an arithmetic expression having a repair cost as a parameter and calculates the calculation result as a profit simulation result.