Building inspection and evaluation system, device, method, program, and recording medium

Abstract

To provide a system, a device, a method, a program and a recording medium for building survey and evaluation, which allow a user to easily obtain detailed information pertaining to a survey and evaluation of a building so as to accurately survey and evaluate the building.SOLUTION: A method provided herein comprises scanning an IC tag attached to a building material and transmitting obtained information to computation means of a predetermined terminal. Upon completely reading necessary information for a survey and assessment of the building, the computation means derives a survey result and an evaluation amount of the building from the obtained information and outputs the survey result and the evaluation amount of the building.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a building inspection and evaluation system, device, method, program, and recording medium, and more particularly to a building inspection and evaluation system, device, method, program, and recording medium for used residential buildings. [Background technology]

[0002] Conventionally, there are building evaluation systems that can provide users with objective information on the performance of used houses easily and at low cost (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-44568 Summary of the Invention [Problem to be solved by the invention]

[0004] When a building is offered for sale as a used property, a long time has typically passed since its construction, and information related to the building's inspection and appraisal has been damaged or lost. In particular, when the builder and seller are different, it is often difficult to even identify the builder. Therefore, expanding or renovating a used building, whose structure and building materials are unknown, is inefficient. Furthermore, the calculation of the inspection and appraisal value of a used property is typically based on the building's price at the time of construction, a general depreciation based on the number of years since construction, information obtained through simple interior and exterior inspections, or other commonly available information. This creates a problem of discrepancies between the appraisal value and actual value. In reality, buildings with high economic value are appraised at prices lower than their fair value. Meanwhile, the invention described in Patent Document 1 is a building inspection and appraisal system that can provide users with objective information on the performance of used homes easily and at low cost. However, because the system requires access to a specific server, users who do not know the specific server cannot use the inspection and appraisal system. Furthermore, because this inspection and evaluation system aims to provide information on the performance of used properties, it does not inspect and evaluate used properties based on detailed building information or actual building information, making it difficult to calculate an inspection and evaluation amount that satisfies both the seller and the buyer (including the intermediary).

[0005] The object of the present invention has been made in consideration of the above, and is to provide a building inspection and evaluation system, device, method, program, and recording medium that allows users to easily obtain detailed information regarding the inspection and evaluation of buildings and accurately inspect and evaluate buildings. [Means for solving the problem]

[0006] The above objectives are: an information storage medium (1a, 2a) storing information relating to building surveys or evaluations; information reading means (101, 103) for reading the information from the information storage medium; A calculation means for calculating the survey result or the assessed value of the building from the information; an interface unit that outputs the survey result or the valuation amount calculated by the calculation means, The information storage medium is installed in the building, and the building inspection and evaluation system (1, 2) This is achieved by:

[0007] In addition, the above objectives are: The information storage medium (1a) is provided in a plurality of building materials constituting the building, The information storage medium stores information about the installed building materials, This can also be achieved by

[0008] In addition, the above objectives are: The calculation means calculates the survey results or the assessed value by aggregating information about the building materials. This can also be achieved by

[0009] In addition, the above objectives are: A drone (100) equipped with the information reading means, The building inspection and evaluation system (1) uses the drone to approach the building material on which the information storage medium is installed and reads the information from the information storage medium. This can also be achieved by

[0010] In addition, the above objectives are: The information storage medium (2a) is configured with a two-dimensional code and is installed in a position exposed to the outside of the building. This can also be achieved by [Effects of the Invention]

[0011] According to the present invention, a building inspection and evaluation system, device, method, program, and recording medium can be provided that allows users to easily obtain detailed information regarding building inspection and evaluation and accurately inspect and evaluate buildings. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a diagram illustrating the attachment position of an IC tag 1a used in a building inspection and evaluation system 1 according to an embodiment of the present invention. [Figure 2] 1 is a diagram illustrating the attachment position of an IC tag 1a used in a building inspection and evaluation system 1 according to an embodiment of the present invention. [Figure 3] 1 is a diagram illustrating an operational state of a building inspection and evaluation system 1 according to an embodiment of the present invention. [Figure 4] 1 is a diagram illustrating an operational state of a building inspection and evaluation system 1 according to an embodiment of the present invention. [Figure 5] 1 is a diagram illustrating the registered contents of an IC tag 1a of a building inspection and evaluation system 1 according to an embodiment of the present invention. [Figure 6] 1 is a diagram illustrating the registered contents of an IC tag 1a of a building inspection and evaluation system 1 according to an embodiment of the present invention. [Figure 7] 1 is a diagram illustrating the registered contents of an IC tag 1a of a building inspection and evaluation system 1 according to an embodiment of the present invention. [Figure 8] 1 is a flowchart of a building inspection and evaluation system 1 according to an embodiment of the present invention. [Figure 9] 1 is a diagram illustrating the attachment position of a two-dimensional code 2a used in a building inspection and evaluation system 2 according to an embodiment of the present invention. [Figure 10] 1 is a flowchart of a building inspection and evaluation system 2 according to an embodiment of the present invention. [Figure 11] 10 is a system flowchart of a first modified example of the building inspection and evaluation system 2 according to an embodiment of the present invention. [Figure 12] 10 is a system flowchart of a modified example 2 of the building inspection and evaluation system 2 according to the embodiment of the present invention. [Figure 13] 1 is an output screen of information regarding the assessed value calculated in building inspection and assessment systems 1 and 2 according to an embodiment of the present invention. [Figure 14]1 is an output screen of information on the survey results calculated in building survey and evaluation systems 1 and 2 according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] Building inspection and evaluation systems 1 and 2 according to embodiments of the present invention will be described below with reference to Figures 1 to 14. In all of the following drawings, the dimensions and proportions of each component are appropriately changed to facilitate understanding.

[0014] FIG. 1 shows an IC tag 1a and metal tape 1b used in a building inspection and evaluation system 1 according to an embodiment of the present invention attached to a piece of wooden building material 10. The IC tag 1a is attached to the top and bottom ends of the piece of wooden building material 10. By acquiring information about the IC tag 1a using a scanner (described later), it is possible to acquire not only information about the piece of wooden building material 10 but also information about the installation direction of the piece of wooden building material 10. The IC tag 1a and metal tape 1b may be attached at a manufacturing plant for the piece of wooden building material 10 or at a construction site. A two-dimensional barcode may be used instead of the IC tag 1a. By attaching the metal tape 1b to the piece of wooden building material 10, even if the piece of wooden building material is installed in a location hidden by wall materials, the current installation status can be confirmed using an X-ray or other camera (e.g., an X-ray camera or an infrared camera).

[0015] FIG. 2 shows the state in which an IC tag 1a is attached to a roofing material 20. In this embodiment, an IC tag 1a is attached to each material of the roofing material 20 that has the same dimensions, material, etc., but an IC tag 1a may be attached to each of the roofing materials. The IC tag 1a may also be attached to various positions on the roofing material 20. The IC tag 1a may also be attached at a manufacturing plant for the roofing material 20 or at a construction site. A two-dimensional code may also be used instead of the IC tag 1a.

[0016] Referring to FIG. 3, the operational state of a building inspection and evaluation system 1 according to an embodiment of the present invention will be described. The building inspection and evaluation system 1 uses a drone 100 to scan and photograph a building 1000 to be inspected and evaluated. The drone 100 is equipped with a scanner 101 that reads information stored in an IC tag 1a, as well as a conventional camera, an X-ray camera, or the like. The drone 100 is configured to scan the IC tag 1a and acquire exterior images and X-ray images of the building as it moves around the building 1000. Furthermore, by synchronizing the time when the scanner 101 reads the information stored in the IC tag 1a with the position information and direction information of the drone 100, it is possible to estimate the position information of the IC tag 1a. Furthermore, if it is determined that all the information necessary for the inspection and evaluation of the building 1000 has been acquired, scanning using the method shown in FIG. 4 is unnecessary.

[0017] Using FIG. 4, the operational state of the building inspection and evaluation system 1 according to an embodiment of the present invention will be described. In the building inspection and evaluation system 1, a person may move around and scan or photograph the building 1000 from inside the building using the scanner 103, a normal camera, an X-ray camera, or the like. Alternatively, a person may move around and scan the building 1000 from outside the building using the scanner 103, or a high-power scanner may be used to scan the building 1000 without moving around. While the scanning by a person moving around shown in FIG. 4 is intended to complement the scanning using a drone shown in FIG. 3, the scanning using a drone shown in FIG. 3 may complement the scanning by a person moving around shown in FIG. 4, or only the scanning by a person moving around shown in FIG. 4 may be performed.

[0018] The registration information stored in the IC tag 1a will be described with reference to FIGS. <Registration information 1> As shown in Figure 5, the registration information 1 stored in the IC tag 1a includes the number, purpose, type (major category), type (minor category), maximum number, installation floor, placement location, list price, useful life, and manufacturing date. This registration information is stored in coded form. <Registration information 2> As shown in Figure 5, the registration information 2 stored in the IC tag 1a is height (mm), width (mm), length (mm), x (mm), y (mm), z (mm), angle x (degrees), angle y (degrees), and angle z (degrees).

[0019] <number> The number is a serial number assigned to each IC tag. <Application> The use indicates the use of the building materials. As shown in Figure 6, the uses that can be registered are roof: 1, exterior wall: 2, interior wall: 3, ceiling: 4, floor: 5, foundation: 6, frame: 7, door: 8, window: 9, bathroom: 10, and other: 11, but uses other than these may also be registered.

[0020] <Type (major classification), type (minor classification)> As shown in Figure 7, type (major classification) and type (minor classification) indicate the type of building material. By combining type (major classification) and type (minor classification), the type of building material can be differentiated and coded in detail. For example, in the case of roofing materials, the major classification can be used to classify the roof shape, and the minor classification can be used to classify the roof material. In addition, in the case of exterior wall materials, the major classification can be used to classify the exterior wall material, and the minor classification can be used to classify the material in more detail.

[0021] <Maximum number> The maximum number is the number of building materials of the same type and price that can be installed. Obtaining the maximum number can prevent survey and valuation errors due to missed scans. This maximum number may also be used to calculate the survey and valuation value of a building. <Installation floor> The installation floor indicates the floor number on which the building material is installed. Note that roofing materials for two-story buildings should be registered with 2, indicating the second floor. <Placement position> The placement position indicates the placement position of the IC tag 1a attached to the building material. In the case of the wooden piece 10 shown in Figure 1, if the wooden piece 10 is attached vertically, 1 is registered to the IC tag 1a at the top end, and 2 is registered to the IC tag 1a at the bottom end. If the wooden piece 10 is attached horizontally, when looking at the entrance from the outside, 3 is registered to the IC tag 1a on the left side, 4 is registered to the IC tag 1a on the right side, 5 is registered to the IC tag 1a on the front side, and 6 is registered to the IC tag 1a on the back side. In the case of building materials for which placement position information is not used, the placement position information is set to 0.

[0022] <List price> The list price indicates the price of the building materials. <Service life> Service life indicates the useful life of building materials. <Manufacture date> The manufacturing date indicates the manufacturing date of the building material, the date on which the building material was installed, or the date on which construction of the building was completed. <Length (mm), width (mm), length (mm)> The length (mm), width (mm), and length (mm) indicate the dimensions of the building material. <x(mm)、y(mm)、z(mm)> x (mm), y (mm), and z (mm) indicate the coordinates of the position closest to the origin in terms of the placement of building materials, with the ground position of the vertex of the building (the vertex closest to the entrance) being the origin (0,0,0). <angle x (degrees), angle y (degrees), angle z (degrees)> Angle x (degrees), angle y (degrees), and angle z (degrees) indicate the angles at which the building materials are arranged in the x-axis direction, y-axis direction, and z-axis direction, respectively.

[0023] FIG. 8 is a flowchart of the building inspection and evaluation system 1. In step S1, the building inspection and evaluation system 1 scans the IC tags 1a attached to the building materials of the building 1000 using the methods shown in FIGS. 3 and 4, and photographs the building using a regular camera or an X-ray camera. In the next step S2, the scanners 101 and 103 transmit the read information to a calculation means (e.g., a CPU or memory) provided in a predetermined terminal (e.g., a smartphone). Images of the building exterior taken with a regular camera or an X-ray camera are also transmitted (output) to the predetermined terminal using a predetermined communication device or external storage device. In step S2, the calculation means may be a CPU or memory provided in a server. In the next step S3, the calculation means (e.g., a CPU or memory) of the predetermined terminal determines whether all the information necessary for the building inspection and evaluation has been read. This determination can be appropriately configured in the predetermined terminal. For example, it may be possible to derive an estimated appraisal value using information from a database such as the use, maximum number, and registered examples of other buildings stored in each IC tag 1a, and to determine that all the information necessary for the appraisal of the building has been read if information on building materials that accounts for 80% or more of that appraisal value has been obtained.In addition, in this case, the final appraisal value output may be an estimated amount, and the reliability of the appraisal value may be displayed together with this appraisal value.

[0024] In the next step S4, the calculation means (e.g., CPU or memory) of the specified terminal uses the obtained information to calculate the survey results and assessed value of the building. Specifically, the assessed value is calculated by depreciating the list price of each building material by the number of years that have passed, taking into account the list price, useful life, and manufacturing date information, and then summing the calculated survey and assessed values ​​of each building material to calculate the survey and assessed value of the building. The survey results are also calculated to reproduce the building in three dimensions by aggregating information such as the dimensions and placement of the building materials. In the next step S5, the assessed value and survey results of the building are output on the screen of the specified terminal, as shown in Figures 13 and 14. The survey results shown in Figure 14 display the building in three dimensions, and when a building material is selected with a cursor or the like, the registration information of the IC tag 1a attached to that building material is output. The building survey and assessment system 1 may output only the survey results of the building or only the assessed value of the building. The survey results may also include images of the building's exterior, x-rays, etc. By comparing and analyzing images such as x-rays with the information on the IC tag 1a, it is also possible to detect whether there are any abnormalities in the mounting positions or angles of the pillars and beams.

[0025] The building inspection and evaluation system 1 according to this embodiment has the following advantages. (a) By reading the IC tags attached to building materials, information about the actual building can be obtained, and building inspections and evaluations can be carried out based on accurate information. (i) By using drones, it is possible to obtain information about building materials in places that cannot be accessed by people. Also, accurate information can be obtained using drones without entering the building. (c) Since IC tags are attached to the building materials of the actual building and no designated server is used, anyone can use the system. (e) The building is displayed in three dimensions on the terminal screen, which is useful when expanding, renovating, or reducing the size of a building. (o) By taking photographs using cameras such as X-rays, it is possible to check the condition of wood hidden under wall and ceiling materials.

[0026] Next, a building inspection and evaluation system 2 according to this embodiment will be described using FIGS. 9 and 10. The building inspection and evaluation system 2 is a system that uses a two-dimensional code 2a instead of the IC tag 1a used in the building inspection and evaluation system 1. The two-dimensional code 2a is a code that compiles and encodes the information stored in the IC tag 1a of the building inspection and evaluation system 1 and is attached to a part of the building. FIG. 9 shows an example in which the two-dimensional code 2a is attached to a cornerstone plate 200. The two-dimensional code 2a may also be attached to a building structure other than the cornerstone plate. Depending on the amount of information about the building, there may be multiple two-dimensional codes 2a, or the owner may attach a new one each time the building is expanded, remodeled, or reduced in size. The two-dimensional code 2a may also include information about the server address for downloading a specific application.

[0027] FIG. 10 is a flowchart of the building inspection and evaluation system 2. In step S10, the building inspection and evaluation system 2 uses a predetermined terminal (e.g., a smartphone) to scan a two-dimensional code 2a attached to a building. Also, in step S10, the predetermined terminal reads the two-dimensional code (step S11), analyzes the recorded information (step S13), and calculates the appraisal value of the components (building materials) (step S15). In the next step S20, the calculation means (e.g., CPU or memory) of the predetermined terminal determines whether all the information necessary for the building appraisal has been read. If all the information necessary for the building appraisal has been read, the total appraisal value is calculated in the next step S30, and in the next step S40, the real estate appraisal is output on the screen of the predetermined terminal shown in FIG. 13.

[0028] The building inspection and evaluation system 2 according to this embodiment has the following advantages. (a) Since a two-dimensional code is attached to the actual building and no designated server is used, anyone can use the system. (i) By attaching a two-dimensional code to each extension, renovation, or reduction in size, users can easily obtain accurate information about the building.

[0029] FIG. 11 is a flowchart of a first modified example of the building inspection and evaluation system 2 according to this embodiment. In this first modified example, a system reads a two-dimensional code 2a attached to a building using a specified terminal, obtains data on building materials from a specified server, and outputs the real estate appraisal value on the screen of the specified terminal. In this first modified example, part of the information in the two-dimensional code 2a in the building inspection and evaluation system 2 is stored in a specified server. Therefore, by comparing the information in the two-dimensional code 2a with the data stored in the specified server, it is possible to obtain information on the building materials of a building.

[0030] 12 is a flowchart of a second modified example of the building inspection and evaluation system 2 according to this embodiment. In this second modified example, a two-dimensional code 2a attached to a building is read using a specified terminal, information on all of the building's construction materials is obtained from a specified server, and the real estate appraisal value is output on the screen of the specified terminal. This second modified example is a system in which all of the information in the two-dimensional code 2a in the building inspection and evaluation system 2 is obtained from a specified server.

[0031] The above-described embodiment is a preferred example of the present invention, and various technically preferable limitations are applied thereto, but the scope of the present invention is not unduly limited by the above description. Furthermore, not all of the configurations described in the above-described embodiment are essential components of the present invention. Furthermore, the configurations described in the above-described embodiment may be added to or combined with each other. [Industrial Applicability]

[0032] The present invention can be widely used in building inspection and evaluation systems, devices, methods, programs, and recording media, and in particular in used residential building inspection and evaluation systems, devices, methods, programs, and recording media. [Explanation of symbols]

[0033] 1a IC tag 2a 2D code 10 wood 20 Roofing materials 100 drones 101, 103 scanner 200 plates 1000 buildings

Claims

[Claim 1] an information storage medium storing information relating to the evaluation of a building's framework; an information reading means for reading the information from the information storage medium; a calculation means for calculating the assessed value of the building from the information; an interface unit that outputs the valuation amount calculated by the calculation means, the information storage medium is provided in a framework of the building; The framework is any one of a foundation, a beam, and a pipe column. Building inspection and evaluation system.

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