Risk determination system and program

Abstract

To provide a risk determination system in which sensors are easy to install and maintenance is also easy, and a program.SOLUTION: A risk determination system comprises: a diagonal section that is installed diagonally from a wall side to a ceiling side or floor side; a calculation section that calculates an inter-story deformation angle of a house from a displacement of the diagonal section; and a determination section that determines a degree of damage to the house or a risk of collapse from the calculation result of the calculation section.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a risk determination system and a program. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there is known a technique for calculating the degree of damage to a house caused by an earthquake or the like based on the measurement results of a plurality of acceleration sensors installed on each floor (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-203713 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, installing an acceleration sensor on a pillar is difficult because the pillar is generally hidden by a wall after the house is constructed, and maintenance after installation is also difficult.

[0005] Therefore, the present disclosure has been made in consideration of the above points, and aims to provide a risk assessment system and program that is easier to install sensors and easier to maintain, compared to cases where the degree of damage to a house or the risk of collapse is determined based on the measurement results of sensors installed on pillars. [Means for solving the problem]

[0006] The first aspect of the risk assessment system comprises a diagonal section installed diagonally from the wall side to the ceiling side or floor side, a calculation section that calculates the inter-story deformation angle of the house from the displacement amount of the diagonal section, and a assessment section that assesses the degree of damage to the house or the risk of collapse from the calculation result of the calculation section.

[0007] According to the first aspect of the risk assessment system, it is possible to provide a risk assessment system and program in which sensors are easier to install and which are easier to maintain, compared to cases in which the degree of damage to a house or the risk of collapse is determined based on the measurement results of sensors installed on pillars.

[0008] In addition, in the risk determination system of the second aspect, the oblique portion is provided with a sensor that measures the distortion or heat of the oblique portion as the amount of displacement.

[0009] According to the risk determination system of the second aspect, it is possible to measure the amount of displacement based on the distortion or heat of the diagonal portion.

[0010] In addition, in the danger determination system of the third aspect, the diagonal portion is a rod-shaped displacement meter that measures the amount of displacement.

[0011] According to the danger determination system of the third aspect, it is possible to measure the amount of displacement more easily than in the case of measuring the distortion of the diagonal portion.

[0012] In addition, the danger determination system of the fourth aspect includes a vertical rod portion installed from the floor side to the ceiling side, and the wall side of the diagonal portion is installed on the vertical rod portion.

[0013] According to the risk determination system of the fourth aspect, the risk determination system is easier to install and easier to maintain than when it is installed in the structure of a house.

[0014] In addition, the danger judgment system of the fifth aspect is provided with a power generation unit that generates electricity by utilizing the energy that displaces the diagonal portion, and at least one of the calculation unit and the judgment unit operates using the electricity generated by the power generation unit.

[0015] According to the danger determination system of the fifth aspect, it is possible to measure distortion even when there is no power source.

[0016] In addition, in the risk assessment system of the sixth aspect, the assessment unit assesses the degree of damage to the house or the risk of collapse based on a trained model that has been machine-learned to determine the relationship between the amount of displacement and the condition of the house.

[0017] According to the risk assessment system of the sixth aspect, it is possible to assess the degree of damage to a house or the risk of collapse using a trained model.

[0018] In addition, the program of the seventh aspect causes a computer to function as a calculation unit that calculates the inter-story deformation angle of a house from the displacement amount of a diagonal section that is installed diagonally from the wall side to the ceiling side or the floor side, and a judgment unit that judges the degree of damage to the house or the risk of collapse from the calculation result of the calculation unit.

[0019] According to the program of the seventh aspect, a risk assessment system and program can be provided that is easier to install sensors and easier to maintain than when the degree of damage to a house or the risk of collapse is determined based on the measurement results of sensors installed on pillars. Effect of the Invention

[0020] According to the present disclosure, it is possible to provide a danger determination system and program in which sensors are easier to install and easier to maintain than when they are installed on pillars. [Brief description of the drawings]

[0021] [Figure 1] 1 is a schematic configuration diagram of an example of installation of a danger determination device according to an embodiment of the present disclosure. [Diagram 2] 1 is a block diagram showing a hardware configuration of a risk determination device according to an embodiment of the present disclosure. [Diagram 3] 1 is a block diagram showing an example of a functional configuration of a danger determination device according to an embodiment of the present disclosure. [Figure 4] FIG. 2 is an explanatory diagram illustrating an installation state of a danger determination device according to an embodiment of the present disclosure. [Diagram 5]FIG. 5 is an explanatory diagram illustrating a state in which the house has tilted due to shaking such as an earthquake from the state shown in FIG. 4. [Figure 6] 5 is a flowchart showing an example of a flow of a risk determination process performed by a risk determination device according to an embodiment of the present disclosure. [Figure 7] FIG. 11 is a block diagram showing a hardware configuration of a danger determination device according to a second embodiment of the present disclosure. [Figure 8] FIG. 11 is a block diagram showing an example of a functional configuration of a danger determination device according to a second embodiment of the present disclosure. [Figure 9] 13 is an explanatory diagram showing the relationship between the load applied to the diagonal portion and deformation according to the second embodiment of the present disclosure. FIG. [Figure 10] 13 is a schematic diagram for explaining another aspect of the vertical bar portion and the diagonal portion. FIG. [Figure 11] 11 is a schematic diagram for explaining the configuration of a vertical bar portion in FIG. 10. FIG. [Figure 12] 11 is a schematic configuration diagram for explaining the configuration of the oblique portion in FIG. 10, and is a schematic plan view of the oblique portion as viewed from above in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] An example of an embodiment of the present disclosure will be described below with reference to the drawings. In each drawing, the same or equivalent components and parts are given the same reference symbols. The dimensional ratios of the drawings are exaggerated for the convenience of explanation and may differ from the actual ratios. In addition, in this specification, unless a definition of a direction is given in each description, the ceiling 12 side of the house 10 is referred to as "up" and the floor 11 side is referred to as "down". Similarly, the up-down direction is referred to as "vertical", and the left-right direction perpendicular to the up-down direction is referred to as "horizontal".

[0023] First Embodiment An example of installation of the risk determination device 100 according to the first embodiment will be described with reference to Fig. 1. The risk determination device 100 in this embodiment is a device that calculates an inter-story deformation angle of a house 10 and determines whether or not there is a risk of the house 10 collapsing based on the calculation result. Here, the risk determination device 100 is an example of a risk determination system. Here, the determination of whether or not there is a risk of the house 10 collapsing includes a determination of the degree of damage to the house 10.

[0024] In this embodiment, the risk determination device 100 mainly determines the degree of damage to the wooden house 10 due to an earthquake and whether there is a risk of the house 10 collapsing. That is, when a large earthquake occurs, monitoring is performed by an on-site survey by an expert to determine the degree of damage to the house for determining evacuation and entry restrictions, diagnosis of the risk of collapse, and prediction of collapse of the house for determining continued use, evacuation, repair, and reconstruction. Monitoring after an earthquake requires urgent attention, but issues include a shortage of experts, damage to infrastructure, and a dangerous monitoring environment in difficult road conditions, and there is a demand for a system that replaces or supports this. In introducing such a system, there are issues such as the cost of specialized equipment, errors in measurement results, theoretical deviation from the structural mechanics of the house, installation work for sensors, installation space for specialized equipment, maintenance and management of specialized equipment, etc. For this reason, the risk determination device 100 has the following configuration.

[0025] As shown in FIG. 1, the danger determination device 100 includes a vertical bar portion 110, a diagonal portion 120, a sensor 200, and a control unit 140.

[0026] As shown in FIG. 1, the vertical rod portion 110 is configured in a rod shape and is installed from the floor 11 side to the ceiling 12 side of the house 10.

[0027] Here, the vertical bar portion 110 of this embodiment is preferably capable of being installed by so-called DIY (Do It Yourself). For example, the vertical bar portion 110 is configured to be adjustable in the height direction. After the vertical bar portion 110 is installed at a predetermined position, it is preferable that the vertical bar portion 110 is capable of standing on its own in a state where it is pressed against the ceiling 12 side and the floor 11 side by adjusting the height direction. That is, it functions as a tension rod. The height direction adjustment of the vertical bar portion 110 includes a temporary adjustment by an elastic body such as a spring. By configuring in this way, even if it is an existing house that is not a new construction, it is possible to make the house 10 equipped with the danger determination device 100 by simple work without calling a remodeling contractor to do the work.

[0028] 1, the vertical bar 110 is not limited to a single bar-shaped body, but may have other shapes. For example, it may be formed of furniture that extends to the ceiling 12 side. Furthermore, the floor 11 side of the vertical bar 110 is not limited to the floor 11, but may be the top plate of furniture placed on the floor 11.

[0029] 1, the diagonal body portion 120 is configured in a rod shape and is installed diagonally from the wall 13 side to the ceiling 12 side or the floor 11 side. In particular, in this embodiment, it is installed on the wall 13 side of the vertical rod portion 110 by screws or the like. It is also fixed to the ceiling 12 by screws or the like.

[0030] The diagonal portion 120 may be formed integrally with the vertical bar portion 110, or may be formed separately from the vertical bar portion 110 and fixed to the vertical bar portion 110 with a screw or the like.

[0031] The diagonal portion 120 is made of a material that deforms and expands and contracts when a strong force is applied due to earthquake shaking. The length of such expansion and contraction (also called "displacement amount") is measured by the sensor 200. In this embodiment, the diagonal portion 120 is made of iron, but is not limited to this and may be made of other materials.

[0032] As described above, the sensor 200 is a sensor that measures the amount of displacement of the diagonal portion 120. In this embodiment, a description will be given using the strain sensor 200A.

[0033] The control unit 140 is a device that calculates the inter-story deformation angle R of the house 10 from the measurement results of the sensor 200.

[0034] FIG. 2 is a block diagram showing a hardware configuration of the control unit 140 of the risk determination device 100 according to this embodiment.

[0035] 2, the control unit 140 of the danger determination device 100 according to this embodiment includes a CPU (Central Processing Unit) 101, a ROM (Read Only Memory) 102, a RAM (Random Access Memory) 103, a storage unit 104, and an input / output I / F (Interface) 105. Each component is connected to each other via a bus 106 so as to be able to communicate with each other.

[0036] The CPU 101 is a central processing unit, and executes various programs and controls each part. That is, the CPU 101 reads a program from the ROM 102 or the storage unit 104, and executes the program using the RAM 103 as a working area. The CPU 101 controls each of the above components and performs various arithmetic processing according to the program recorded in the ROM 102 or the storage unit 104. In this embodiment, the program is stored in the ROM 102 or the storage unit 104.

[0037] The ROM 102 stores various programs and various data. The RAM 103 temporarily stores programs or data as a working area. The storage unit 104 is configured with a hard disk drive (HDD), a solid state drive (SSD), a flash memory, or the like, and stores various programs including an operating system and various data.

[0038] Here, the information stored in storage unit 104 in this embodiment includes, for example, the measurement results of sensor 200 (strain sensor 200A).

[0039] The input / output I / F 105 is an interface for communicating with the sensor 200 (the strain sensor 200A).

[0040] In addition, the danger determination device 100 may be provided with an alarm unit such as a lamp or speaker (not shown) that notifies the user of the degree of danger.

[0041] Next, the functional configuration realized by the control unit 140 of the risk determination device 100 will be described. FIG. 3 is a block diagram showing an example of a functional configuration of the CPU 101 of the control unit 140 of the danger determination device 100. As shown in FIG.

[0042] 3, the control unit 140 of the risk determination device 100 has, as functional components, a reception unit 141, a calculation unit 142, and a determination unit 143. Each functional component is realized by the CPU 101 reading and executing a program stored in the ROM 102 or the storage unit 104.

[0043] The receiving unit 141 receives the measurement result from the strain sensor 200A.

[0044] The calculation unit 142 calculates the inter-story deformation angle R of the house 10 from the amount of displacement of the oblique body portion 120, which is the measurement result of the strain sensor 200A received by the reception unit 141.

[0045] Here, the calculation of the inter-story deformation angle R by the calculation unit 142 will be described with reference to Figs. 4 and 5. Fig. 4 is an explanatory diagram for explaining the installation state of the danger determination device 100. Fig. 5 is an explanatory diagram for explaining a state in which the house 10 is tilted from the state shown in Fig. 4 due to shaking such as an earthquake. As shown in Fig. 4, it is desirable that the vertical bar portion 110 is installed perpendicular to the floor 11. The oblique body portion 120 is installed at an installation angle of θ with respect to the vertical bar portion 110. Then, a case in which the house 10 is tilted at the inter-story deformation angle R from the state shown in Fig. 4 due to shaking such as an earthquake, as shown in Fig. 5, will be described as an example.

[0046] As described above, the strain sensor 200A measures the amount of displacement of the diagonal body portion 120. Then, the calculation unit 142 calculates the interstory deformation angle R from the amount of displacement using the following formula (1).

[0047]

number

[0048] Here, R is the inter-story deformation angle, L is the length of the diagonal portion 120, θ is the installation angle of the diagonal portion 120 relative to the vertical bar portion 110, and D is the displacement amount of the diagonal portion 120 measured by the strain sensor 200A.

[0049] The determination unit 143 determines the risk of collapse of the house 10 from the calculation result of the calculation unit 142. Specifically, the determination unit 143 compares the inter-story deformation angle R with a threshold value to determine the risk. For example, if the inter-story deformation angle R exceeds a predetermined threshold value, it is determined that there is a risk of collapse of the house 10.

[0050] Also, a plurality of thresholds may be set, and the degree of danger may be determined for each of the thresholds. For example, when the first threshold is exceeded, the degree of danger of the collapse of the house 10 may be determined as "slight", when the second threshold higher than the first threshold is exceeded, the degree of danger of the collapse of the house 10 may be determined as "minor damage", when the third threshold higher than the second threshold is exceeded, the degree of danger of the collapse of the house 10 may be determined as "moderate damage", when the fourth threshold higher than the third threshold is exceeded, the degree of danger of the collapse of the house 10 may be determined as "severe damage", and when the fifth threshold higher than the fourth threshold is exceeded, the degree of danger of the collapse of the house 10 may be determined as "severe damage". Here, the degree of danger may be said to be a classification of the degree of damage in the so-called damage classification criteria. This aspect is also suitable for determining the degree of damage to the house 10.

[0051] The threshold value may be changed depending on the age of the building, floor area, roof area, construction method, heavy snowfall region, etc.

[0052] Next, the operation of the risk determination device 100 will be described with reference to Fig. 6. Fig. 6 is a flow chart showing an example of the flow of risk determination processing by the risk determination device 100. The CPU 101 reads out a program from the ROM 102 or the storage unit 104, develops it, and executes it to perform this processing. Here, the risk determination processing shown in Fig. 6 is processing that is executed when it becomes necessary to determine the level of risk due to an earthquake or the like, but may be executed repeatedly at a predetermined cycle while the risk determination device 100 is operating.

[0053] In step S100, the measurement result is received from the strain sensor by the CPU 101 (reception unit 141) of the danger determination device 100. Then, the process proceeds to the next step S102.

[0054] In step S102, the CPU 101 (calculation unit 142) of the risk determination device 100 calculates the inter-story deformation angle R of the house 10 from the measurement result of the strain sensor received in step S100. Then, the process proceeds to the next step S104.

[0055] In step S104, the CPU 101 (determination unit 143) of the danger determination device 100 determines the degree of danger of the collapse of the house 10 from the measurement result of the strain sensor received in step S100. Then, the process proceeds to the next step S106.

[0056] In step S106, the CPU 101 of the risk determination device 100 outputs the determination result. Here, outputting the determination result includes storing the determination result in the storage unit 104, transmitting the determination result to an external device, etc. Then, the process ends.

[0057] <Second embodiment> Next, a second embodiment will be described with reference to FIGS. In the above-described first embodiment, the inter-story deformation angle R calculated from the measurement results of the sensor 200 is compared with a predetermined threshold value, and if the threshold value is exceeded, it is determined that there is a risk of the house 10 collapsing. However, the second embodiment is different in that it determines that there is a risk of the house 10 collapsing by using a trained model P. Note that the following description will focus on the parts that are different from the above-described first embodiment, and descriptions of overlapping parts will be simplified or omitted.

[0058] FIG. 7 is a block diagram showing a hardware configuration of the control unit 140 of the risk determination device 100 according to the second embodiment.

[0059] 7, the risk determination device 100 according to this embodiment includes a CPU 101, a ROM 102, a RAM 103, a storage unit 104, and an input / output I / F 105. Each component is connected to each other so as to be able to communicate with each other via a bus 106. The storage unit 104 stores teacher data Q and a trained model P.

[0060] The teacher data Q is data on the relationship between the measurement results of the strain sensor 200A and the state of the house 10, specifically, a combination of the distortion of the diagonal portion 120 and the risk of the house 10. Here, the risk of the house 10 in the teacher data Q includes a damage level classification identified by a damage survey conducted on-site by an expert.

[0061] The trained model P is generated by machine learning the relationship between the distortion, which is the measurement result of the distortion sensor 200A, and the state of the house 10, using the training data Q as training data.

[0062] Next, a functional configuration realized by the risk determination device 100 in the second embodiment will be described.

[0063] FIG. 8 is a block diagram showing an example of a functional configuration of the CPU 101 of the control unit 140 of the risk determination device 100 in the second embodiment.

[0064] 8, the risk determination device 100 has, as functional components, a reception unit 141, a learning unit 150, and a determination unit 143. Each functional component is realized by the CPU 101 reading and executing a program stored in the ROM 102 or the storage unit 104.

[0065] The learning unit 150 performs a process of generating a trained model P by machine learning using the teacher data Q. The trained model P is generated, for example, by using a neural network. Note that the machine learning is not limited to being performed by the risk determination device 100, and another device may perform the machine learning and store the obtained trained model P in the risk determination device 100.

[0066] The determination unit 143 determines the degree of danger based on a trained model P that has been machine-learned to learn the relationship between the distortion, which is the measurement result of the distortion sensor 200A, and the state of the house 10. Specifically, the distortion, which is the measurement result of the distortion sensor 200A, is used as input data to the trained model P, and the degree of danger is used as output data from the trained model P. Here, the degree of danger includes the probability of the risk of the house 10 collapsing, the stage of the degree of danger, and the degree of damage.

[0067] The present disclosure is not limited to the above-described embodiment, and various modifications other than those described above are possible without departing from the spirit of the present disclosure.

[0068] For example, in the above-described embodiment, the inter-story deformation angle R is calculated based on the measurement result of the strain sensor 200A to determine the risk of collapse of the house 10, but this is not limiting. For example, the risk of collapse of the house 10 may be determined taking into account the maximum value of shaking due to an earthquake or the like measured by the strain sensor 200A, the number of shaking events, and the like. Specifically, even if the measurement result of the strain sensor 200A has the same value, if the maximum value of the measurement result of the strain sensor 200A or the number of times the strain is measured is different, the risk may be different.

[0069] Furthermore, in the above-described embodiment, the strain sensor 200A is used as the sensor 200, but a thermal sensor that measures heat may also be used.

[0070] The thermal sensor measures the amount of displacement of the diagonal portion 120 by measuring the heat generated when the diagonal portion 120 expands, contracts, or is destroyed by earthquake shaking or the like. Then, the calculation unit calculates the interstory deformation angle R as follows. Note that in this example, the thermal sensor measures the heat generated when the diagonal portion 120 itself expands, contracts, or is destroyed, but the diagonal portion 120 may be provided with a heating element that generates heat due to shaking such as an earthquake, and the heat of the heating element may be measured.

[0071] If the temperature rise of the oblique portion 120 due to heat generation is ΔT, the thermal energy Q of the oblique portion 120 is expressed by the following formula (2).

[0072]

number

[0073] Here, m is the mass of the oblique portion 120, and c is the specific heat.

[0074] In addition, the energy E P is expressed by the following equation (3).

[0075]

number

[0076] The displacement D of the diagonal portion 120 is expressed by the following formula (4).

[0077]

number

[0078] Here, the case where the diagonal portion 120 is made of a perfectly elastic-plastic material is shown in FIG. 9. That is, when a load is applied to the diagonal portion 120, the yield axial force N y Up to the point where the energy E P accumulates rapidly, and the yield axial force N y If it exceeds the energy E P The yield axial force is the product of the cross-sectional area of ​​the diagonal portion 120 and the material strength.

[0079] It is also possible to estimate the maximum value of the shaking and the number of times the house 10 has shook from temperature fluctuations (heat rise and fall) caused by the thermoelastic effect of the diagonal portion 120. The maximum value of the shaking and the number of times the house 10 has shook may also be taken into account in determining the degree of danger. Furthermore, the calculation unit 142 may calculate the interlayer deformation angle R using the measurement results of the strain sensor 200A of the above-described embodiment and the measurement results of the thermal sensor.

[0080] Furthermore, the determining unit 143 may determine the risk of collapse based on the average of the inter-story deformation angle R over a predetermined period.

[0081] Furthermore, the determination unit 143 may determine the risk of collapse of the house 10 based on the change in the strain. That is, the risk of collapse may be determined based on not only a single measurement result of the strain sensor 200A but also multiple measurement results.

[0082] Specifically, the calculated inter-story deformation angle R and the measurement results of the strain sensor 200A are stored in the storage unit 104, and the risk of collapse of the house 10 is determined based on the relationship between the measurement period and the measurement results. For example, if the strain value increases by a predetermined value within a predetermined period such as one year, it is determined that there is a risk of collapse of the house 10. With this configuration, it is also possible to determine the possibility of collapse due to deterioration of the house 10 over time. Even if there is no risk of collapse of the house 10 based on a single measurement result, the risk of collapse of the house 10 can be determined based on the increasing trend of the strain value, such as the gradually increasing strain value.

[0083] In addition, in the above-described embodiment, the sensor 200 and control unit 140 of the danger determination device 100 are operated using dry batteries or commercial power, but this is not limited to this, and part or all of the danger determination device 100 may be operated using electricity generated by using distortion or heat generated when the diagonal portion 120 is damaged.

[0084] Specifically, at least one of the sensor 200 and the control unit 140 may be operated using power generated by so-called environmental power generation, such as generating power using a piezoelectric element or the like based on distortion that occurs when the diagonal portion 120 is damaged by shaking such as an earthquake, or generating power using a Peltier element or the like based on heat that occurs when the diagonal portion 120 is damaged. With this configuration, for example, it is possible to determine the risk of collapse even in a vacant house that does not have a commercial power contract, and also to determine the risk of collapse during a power outage. Also, instead of or in addition to the power generated by environmental power generation, power obtained from solar power generation or the like may be used.

[0085] Moreover, the vertical bar portion 110 and the diagonal portion 120 may be shaped as shown in FIGS. 10 and 11, the vertical bar portion 110 includes a first female threaded portion 111 that opens downward from the lower portion of the vertical bar portion 110, a second female threaded portion 112 that is installed on the floor 11 side and opens upward, and a bolt portion 113 that is inserted between the first female threaded portion 111 and the second female threaded portion 112. By rotating the bolt portion 113, the length of the bolt portion 113 inserted into the first female threaded portion 111 and the second female threaded portion 112 can be adjusted, and the height of the vertical bar portion 110 can be adjusted.

[0086] 10 and 12, the diagonal portion 120 includes a first protrusion 121 fixed to the vertical bar portion 110, a second protrusion 122 fixed to the ceiling 12, and two plate portions (a first plate portion 123 and a second plate portion 124) connecting the first protrusion 121 and the second protrusion 122. After the first plate portion 123 is fixed to the first protrusion 121 and the second plate portion 124 is fixed to the second protrusion 122, a bolt 126 is inserted into an elongated hole portion 125 provided in the plate portions 123 and 124 to fix the two plate portions 123 and 124. That is, the overlapping range between the first plate portion 123 and the second plate portion 124 can be changed depending on the insertion position of the bolt 126 into the elongated hole portion 125, and the length of the diagonal portion 120 can be adjusted depending on the situation of the house 10. As described above, the length of the diagonal portion 120 is information necessary for calculating the inter-layer deformation angle R, so if it is made possible to adjust the length of the diagonal portion 120, information on the length of the diagonal portion 120 must be input to the control unit 140 of the danger judgment device 100.

[0087] In the above-described embodiment, the diagonal portion 120 is configured in a rod shape, but this is not limited thereto, and the diagonal portion 120 itself may be a rod-shaped displacement gauge. By configuring the diagonal portion 120 itself as a rod-shaped displacement gauge, the inter-story deformation angle R can be easily calculated.

[0088] In the above embodiment, the wall side of the diagonal portion 120 is attached to the vertical bar portion 110, and the other side is fixed to the ceiling 12, but this is not limited to the above. For example, the vertical bar portion 110 may not be provided, and one side of the diagonal portion 120 may be fixed to a wall or pillar of the house 10.

[0089] The diagonal portion 120 may also have a function as a diagonal brace for reinforcing the house 10. That is, in the above-described embodiment, the diagonal portion 120 does not have a function of reinforcing the house 10, but it may have a function as a diagonal brace by being incorporated as a structure that supports the force applied to the house 10, similar to a pillar or a beam.

[0090] In the above embodiment, the program is pre-stored (installed) in the ROM 102 or the storage unit 104, but the present invention is not limited to this. The program may be provided in a form recorded on a recording medium such as a CD-ROM (Compact Disk Read Only Memory), a DVD-ROM (Digital Versatile Disk Read Only Memory), or a USB (Universal Serial Bus) memory. The program may also be downloaded from an external device via a network.

[0091] The following notes are disclosed regarding the technology of the present disclosure. <Additional Notes> (Appendix 1) A diagonal portion that is installed diagonally from the wall side to the ceiling side or floor side; A calculation unit that calculates an inter-story deformation angle of the house from the displacement amount of the oblique body portion; A risk determination system comprising: a determination unit that determines the degree of damage to the house or the risk of collapse from the calculation results of the calculation unit.

[0092] (Appendix 2) A danger determination system as described in Appendix 1, comprising a sensor in the diagonal portion that measures the distortion or heat of the diagonal portion as the amount of displacement.

[0093] (Appendix 3) 2. The danger determination system according to claim 1, wherein the diagonal portion is a rod-shaped displacement meter that measures the amount of displacement.

[0094] (Appendix 4) A vertical bar portion is provided that is installed from the floor side to the ceiling side, A danger determination system according to any one of claims 1 to 3, wherein the wall side of the diagonal portion is installed on the vertical bar portion.

[0095] (Appendix 5) a power generating unit that generates power by utilizing the energy that displaces the diagonal portion, 5. The risk determination system according to claim 1, wherein at least one of the calculation unit and the determination unit operates using power generated by the power generation unit.

[0096] (Appendix 6) A risk assessment system as described in any one of Appendix 1 to Appendix 5, wherein the assessment unit assesses the degree of damage to the house or the risk of collapse based on a trained model that has been machine-learned to determine the relationship between the amount of displacement and the condition of the house.

[0097] (Appendix 7) Computer, a calculation unit that calculates an inter-story deformation angle of the house from the displacement of an inclined body that is installed diagonally from the wall side to the ceiling side or the floor side; A determination unit that determines a degree of damage or a risk of collapse of the house based on the calculation result of the calculation unit; A program to make it function as such. [Explanation of symbols]

[0098] 10 houses 11 Beds 12. Ceiling 13. Wall 100 Danger Judgment Device 110 Vertical bar section 120 Italics 140 Control section 200 Sensors

Claims

1. A diagonal portion that is installed diagonally from the wall side to the ceiling side or floor side; A calculation unit that calculates an inter-story deformation angle of the house from the displacement amount of the oblique body portion; A risk determination system comprising: a determination unit that determines the degree of damage to the house or the risk of collapse from the calculation results of the calculation unit.

2. The danger determination system according to claim 1 , further comprising a sensor provided in the oblique body portion for measuring a distortion or a heat of the oblique body portion as the amount of displacement.

3. The danger determination system according to claim 1 , wherein the oblique portion is a rod-shaped displacement meter that measures the amount of displacement.

4. A vertical bar portion is provided that is installed from the floor side to the ceiling side, The danger determination system according to claim 1 , wherein a wall side of the diagonal body portion is installed on the vertical bar portion.

5. a power generating unit that generates power by utilizing the energy that displaces the diagonal portion, The risk determination system according to claim 1 , wherein at least one of the calculation unit and the determination unit operates using power generated by the power generation unit.

6. The risk assessment system according to claim 1 , wherein the assessment unit assesses the degree of damage to the house or the risk of collapse based on a trained model that has been machine-learned to determine the relationship between the amount of displacement and the condition of the house.

7. Computer, a calculation unit that calculates an inter-story deformation angle of the house from the displacement of an inclined body that is installed diagonally from the wall side to the ceiling side or the floor side; A determination unit that determines a degree of damage or a degree of risk of collapse of the house based on the calculation result of the calculation unit; A program to make it function as such.

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