JP7026831B1 - Inundation height measuring device, inundation height measurement method and inundation height measurement program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily measure the inundation height at the time of flood damage.
SOLUTION: A data acquisition unit 112 is an upper limit position where a flooded building is flooded from the ground by an optical sensor 141 that measures the position of the reflection point by irradiating the irradiation light and receiving the reflected light reflected at the reflection point. The point cloud data, which is a plurality of point data indicating the positions of the reflection points obtained by measuring the area including up to, is acquired. The inundation height measuring unit 114 inundates the distance perpendicular to the horizontal direction from the ground surface indicating the position of the ground to the inundation line indicating the inundation upper limit position based on the point cloud data acquired by the data acquisition unit 112. Measure as high.
[Selection diagram] Fig. 2

Description

The present disclosure relates to a technique for measuring the inundation height of an inundated building.

When a flood occurs, the non-life insurance company is contacted by the policyholder and dispatches an assessor to the policyholder's building to determine whether the damage situation meets the insurance payment requirements. ..

The insurance payment requirement is, for example, to meet at least one of the following two conditions. Condition 1: There is inundation on the floor, Condition 2: There is inundation above a certain height (for example, 45 cm or more) from the ground surface.
Condition 1 can be easily determined by visually observing the inside of the building or by checking the image data obtained by photographing the inside of the building. However, for condition 2, it is necessary for the assessor to measure the inundation height using a measure or the like, which is troublesome.

Patent Document 1 describes that the photographed image of the accident vehicle is compared with the registered image of the vehicle type of the accident vehicle, and the degree of damage is specified from the difference.

Japanese Unexamined Patent Publication No. 2001-76055

When the technique of Patent Document 1 is applied to the measurement of the inundation height, it is necessary that the image data includes information that can specify the height. Therefore, for example, a measure or an object of known size must be photographed together with a flooded building. It is difficult to measure the inundation height correctly depending on the appearance of a measure or an object of known size.
An object of the present disclosure is to make it possible to easily measure the inundation height.

The inundation height measuring device according to the present disclosure is
It is obtained by measuring the area including the flooded building from the ground to the flooded upper limit position by the optical sensor that measures the position of the reflection point by irradiating the irradiation light and receiving the reflected light reflected at the reflection point. A data acquisition unit that acquires point cloud data, which is a plurality of point data indicating the positions of the reflection points.
Based on the point cloud data acquired by the data acquisition unit, the inundation height measures the distance in the direction perpendicular to the horizontal direction from the ground surface indicating the position of the ground to the inundation line indicating the upper limit position of inundation. Equipped with a high measurement unit.

The data acquisition unit is an image data about a region where the point cloud data has been acquired, and is a target image which is image data in which each of the plurality of point data constituting the point cloud data and a pixel are associated with each other. To get,
The inundation height measuring device further
Based on the target image acquired by the data acquisition unit, the inundation range specifying unit for specifying the inundation line is provided.
The inundation height measuring unit measures the vertical distance from the ground surface to the inundation line specified by the inundation range specifying unit as the inundation height.

The inundation range specifying unit identifies the inundation line by displaying the target image and accepting the designation of the inundation upper limit position in the target image.

The inundation range specifying unit identifies the inundation line based on the target image acquired by the data acquisition unit using a learned model that infers the inundation upper limit position from an input image that is image data of the inundated building. do.

The inundation range specifying unit is a candidate for the inundation line based on the target image acquired by the data acquisition unit using a trained model that infers the inundation upper limit position from the input image which is the image data of the inundated building. The inundation line is specified by specifying the position, displaying the target image after showing the candidate position, and accepting the designation of the inundated upper limit position in the target image.

The inundation height measuring unit includes the position indicated by the point cloud data related to the ground surface among the point cloud data acquired by the data acquisition unit, and the point data related to the inundation line among the point cloud data acquired by the data acquisition unit. The inundation height is measured from the position indicated by.

The inundation height measuring device further
A height determination unit for determining whether or not the inundation height measured by the inundation height measuring unit is equal to or higher than the reference height is provided.

The inundation height measuring device further
When the height determination unit determines that the inundation height is equal to or higher than the reference height, the insurance money calculation unit is provided to calculate the amount of flood damage insurance money for the building.

The method for measuring the inundation height according to the present disclosure is as follows.
The data acquisition unit irradiates the irradiation light and receives the reflected light reflected at the reflection point to measure the position of the reflection point. Point cloud data, which is a plurality of point data indicating the positions of the reflection points obtained by measurement, is acquired.
Based on the point cloud data, the inundation height measuring unit measures the distance in the direction perpendicular to the horizontal direction from the ground surface indicating the position of the ground to the inundation line indicating the upper limit position of inundation as the inundation height.

The inundation height measurement program related to this disclosure is
It is obtained by measuring the area including the flooded building from the ground to the flooded upper limit position by the optical sensor that measures the position of the reflection point by irradiating the irradiation light and receiving the reflected light reflected at the reflection point. A data acquisition process for acquiring point cloud data, which is a plurality of point data indicating the positions of the reflection points, and
Based on the point cloud data acquired by the data acquisition process, the inundation height measures the distance in the direction perpendicular to the horizontal direction from the ground surface indicating the position of the ground to the inundation line indicating the upper limit position of inundation. The computer functions as an inundation height measuring device that performs high measurement processing.

In the present disclosure, the inundation height is measured based on the point cloud data obtained by measuring with an optical sensor. As a result, it is not necessary to photograph a major or an object of known size together with the flooded building, and the flood height can be easily measured.

The block diagram of the damage assessment system 100 which concerns on Embodiment 1. FIG. The block diagram of the inundation height measuring apparatus 10 which concerns on Embodiment 1. FIG. The block diagram of the master management apparatus 20 which concerns on Embodiment 1. FIG. The flowchart which shows the operation of the damage assessment system 100 which concerns on Embodiment 1. An explanatory diagram of user information 231 according to the first embodiment. The explanatory view of the contract information 232 which concerns on Embodiment 1. FIG. An explanatory diagram of rate information 233 according to the first embodiment. Explanatory drawing of accident information 234 which concerns on Embodiment 1. FIG. The block diagram of the inundation height measuring apparatus 10 which concerns on modification 1. The block diagram of the master management apparatus 20 which concerns on modification 1. FIG. The block diagram of the inundation height measuring apparatus 10 which concerns on Embodiment 2. The block diagram of the inundation height measuring apparatus 10 which concerns on Embodiment 3.

Embodiment 1.
*** Explanation of configuration ***
The configuration of the damage assessment system 100 according to the first embodiment will be described with reference to FIG.
The damage assessment system 100 includes an inundation height measuring device 10 and a master management device 20. The inundation height measuring device 10 and the master management device 20 are connected to each other via a transmission line 30.
The inundation height measuring device 10 is a computer such as a smartphone and a tablet terminal that measures the inundation height of a building and assesses damage. The master management device 20 is a computer such as a server that manages information on buildings and insurance contracts. The transmission line 30 is a network such as a cellular communication network and the Internet.

The configuration of the inundation height measuring device 10 according to the first embodiment will be described with reference to FIG.
The flood height measuring device 10 includes hardware for a processor 11, a memory 12, a storage 13, and a communication interface 14. The processor 11 is connected to other hardware via a signal line and controls these other hardware.
The inundation height measuring device 10 is connected to an optical sensor 141 such as LiDAR (Light Detection and Ringing) and an optical camera 142 via a communication interface 14. In FIG. 2, the optical sensor 141 and the optical camera 142 are mounted on the inundation height measuring device 10, but may be provided outside the inundation height measuring device 10.

The inundation height measuring device 10 has, as functional components, a communication unit 111, a data acquisition unit 112, an inundation range specifying unit 113, an inundation height measuring unit 114, a height determination unit 115, and an insurance money calculation unit 116. To prepare for. The functions of each functional component of the inundation height measuring device 10 are realized by software.
The storage 13 stores a program that realizes the functions of each functional component of the inundation height measuring device 10. This program is read into the memory 12 by the processor 11 and executed by the processor 11. As a result, the functions of each functional component of the inundation height measuring device 10 are realized.

The configuration of the master management device 20 according to the first embodiment will be described with reference to FIG.
The master management device 20 includes hardware for a processor 21, a memory 22, a storage 23, and a communication interface 24. The processor 21 is connected to other hardware via a signal line and controls these other hardware.

The master management device 20 includes a communication unit 211 and a determination unit 212 as functional components. The functions of each functional component of the master management device 20 are realized by software.
The storage 23 stores a program that realizes the functions of each functional component of the master management device 20. This program is read into the memory 22 by the processor 21 and executed by the processor 21. As a result, the functions of each functional component of the master management device 20 are realized.

The storage 23 stores user information 231, contract information 232, rate information 233, and accident information 234.

Processors 11 and 21 are ICs (Integrated Circuits) that perform processing. Specific examples of the processors 11 and 21 are a CPU (Central Processing Unit), a DSP (Digital Signal Processor), and a GPU (Graphics Processing Unit).

The memories 12 and 22 are storage devices for temporarily storing data. Specific examples of the memories 12 and 22 are SRAM (Static Random Access Memory) and DRAM (Dynamic Random Access Memory).

The storages 13 and 23 are storage devices for storing data. The storages 13 and 23 are, as a specific example, an HDD (Hard Disk Drive). The storages 13 and 23 include SD (registered trademark, Secure Digital) memory card, CF (CompactFlash, registered trademark), NAND flash, flexible disk, optical disk, compact disk, Blu-ray (registered trademark) disk, and DVD (Digital Versaille Disk). ) May be a portable recording medium.

The communication interfaces 14 and 24 are interfaces for communicating with an external device. Specific examples of the communication interfaces 14 and 24 are Ethernet (registered trademark), USB (Universal Serial Bus), and HDMI (registered trademark, High-Definition Multimedia Interface) ports.

In FIG. 2, only one processor 11 is shown. However, the number of processors 11 may be plural, and the plurality of processors 11 may execute programs that realize each function in cooperation with each other. Similarly, in FIG. 3, only one processor 21 was shown. However, the number of processors 21 may be plural, and the plurality of processors 21 may execute programs that realize each function in cooperation with each other.

*** Explanation of operation ***
The operation of the damage assessment system 100 according to the first embodiment will be described with reference to FIGS. 4 to 8.
The operation procedure of the damage assessment system 100 according to the first embodiment corresponds to the damage assessment method according to the first embodiment. Further, the program that realizes the operation of the damage assessment system 100 according to the first embodiment corresponds to the damage assessment program according to the first embodiment.
In particular, the operation procedure of the inundation height measuring device 10 in the damage assessment system 100 according to the first embodiment corresponds to the inundation height measuring method according to the first embodiment. Further, the program that realizes the operation of the inundation height measuring device 10 in the damage assessment system 100 according to the first embodiment corresponds to the inundation height measuring program according to the first embodiment.

(Step S101 in FIG. 4: Authentication process)
The communication unit 111 of the inundation height measuring device 10 transmits the authentication information of the user of the inundation height measuring device 10 to the master management device 20. In Embodiment 1, the user is a policyholder or assessor of an insurance company. In the first embodiment, the user is described as an insurance policyholder.
Specifically, the communication unit 111 receives the authentication information input by the user. The communication unit 111 transmits the received authentication information to the master management device 20 via the communication interface 14. Then, the communication unit 211 of the master management device 20 receives the transmitted authentication information.

(Step S102 in FIG. 4: Judgment processing)
The determination unit 212 determines whether or not the authentication information received in step S101 is valid.
Specifically, the determination unit 212 refers to the user information 231 and determines whether or not the authentication information is valid. As shown in FIG. 5, the user information 231 includes authentication information of each user. For example, as shown in FIG. 5, when the authentication information is a password, the determination unit 212 sets the ID and password received as the authentication information, and one of the IDs and IDs included in the user information 231. If the password pair matches, it is determined that the authentication information is valid.

When it is determined that the authentication information is valid, the communication unit 211 measures the inundation height via the communication interface 24 with the authentication result indicating that the authentication is successful and the list information of the buildings associated with the user. It is transmitted to the device 10. On the other hand, if it is determined that the authentication information is not valid, the communication unit 211 transmits an authentication result indicating that the authentication has failed to the inundation height measuring device 10 via the communication interface 24. Then, the communication unit 111 of the inundation height measuring device 10 receives the transmitted authentication result. When the authentication result indicates that the authentication is successful, the communication unit 111 also receives the list information.
When it is determined that the authentication information is appropriate, the communication unit 211 identifies the building associated with the user by referring to the contract information 232 and generates the list information. As shown in FIG. 6, the contract information 232 includes a user ID and building information for each security number of the insurance contract. The building information includes identification information such as the location of the building, total floor area, floor area of each floor, number of floors, and information on the building such as the presence or absence of piloti. The communication unit 211 identifies the securities number including the user ID of the user who succeeded in authentication with reference to the contract information 232, and extracts the building identification information from the building information associated with the specified securities number. Then, the communication unit 211 generates list information indicating the extracted building identification information.

If the authentication result received in step S102 indicates that the authentication was successful, the communication unit 111 advances the process to step S103. On the other hand, when the authentication result received in step S102 indicates that the authentication has failed, the communication unit 111 returns the process to step S101 and causes the input of the authentication information to be re-input.

(Step S103: Building designation process)
The communication unit 111 displays the list information on the display device and causes the user to select the building to be processed. The communication unit 111 transmits the identification information of the selected building to the master management device 20 via the communication interface 14. Then, the communication unit 211 of the master management device 20 receives the transmitted identification information of the building.

(Step S104: Building information transmission processing)
The communication unit 211 refers to the contract information 232 and extracts the building information associated with the building identification information received in step S103. The communication unit 211 transmits the extracted building information to the inundation height measuring device 10 via the communication interface 24. Then, the communication unit 111 of the inundation height measuring device 10 receives the transmitted building information.

(Step S105: Data acquisition process)
The data acquisition unit 112 of the inundation height measuring device 10 acquires the data of the building to be processed, which is the inundated building, by using the optical sensor 141 and the optical camera 142.
Specifically, the data acquisition unit 112 acquires point cloud data of the building to be processed by using the optical sensor 141, and acquires image data of the building to be processed by using the optical camera 142. The image data acquired here is called a target image. At this time, the data acquisition unit 112 acquires the point cloud data obtained by measuring the area including the upper limit position of the building to be processed from the ground to the flooded upper limit, and the target image obtained by photographing. The optical sensor 141 is a sensor that measures the position and brightness of the reflection point by irradiating the irradiation light and receiving the reflected light reflected at the reflection point. Here, the position of the reflection point is the relative position of the reflection point with respect to the position of the optical sensor 141. The point cloud data is three-dimensional point cloud data composed of a plurality of point data indicating the position and brightness of each reflection point.
By acquiring the data at the same time by the optical sensor 141 and the optical camera 142, each of the plurality of point data constituting the point cloud data is associated with any pixel of the target image. That is, the point data at the same position and the pixel of the target image are associated with each other.

In some cases, it may not be possible to photograph the area of the building to be treated including the area from the ground to the upper limit of flooding at one time. In this case, the inundation height measuring device 10 may be moved and photographed a plurality of times by the optical camera 142. For example, as in the case of shooting a moving image, a plurality of image data may be acquired by the user moving the inundation height measuring device 10 while shooting with the optical camera 142. At this time, the captured area is also measured by the optical sensor 141.
The data acquisition unit 112 specifies the amount of movement of the inundation height measuring device 10 at the time of photographing by an acceleration sensor or the like provided in the inundation height measuring device 10. The data acquisition unit 112 synthesizes the measured point cloud data into one point cloud data based on the amount of movement, and combines the image data obtained by shooting a plurality of times into one target image. .. As a result, it is possible to acquire point cloud data and a target image for an area including the area from the ground to the flooded upper limit position of the building to be processed.

(Step S106: Inundation range specifying process)
The inundation range specifying unit 113 of the inundation height measuring device 10 identifies an inundation line indicating an inundation upper limit position based on the target image acquired in step S105. In the first embodiment, the inundation range specifying unit 113 displays the target image on the display device and causes the user to specify the inundation upper limit position. The inundation range specifying unit 113 accepts that the designated position is the position of the inundation line. If the inundation height measuring device 10 is a smartphone, the display device is a display of the smartphone.
The outer wall of a flooded building will be discolored in the flooded area. The user confirms this discoloration, identifies the inundation line, and specifies the inundation line portion. For example, if the inundation height measuring device 10 is a smartphone, the inundation line is designated by touching the inundation line portion displayed on the display.

Further, the inundation range specifying unit 113 specifies the ground surface of the building to be processed from the point cloud data acquired in step S105. Identifying the ground surface from point cloud data is feasible using existing technology. For example, the ground surface can be specified by specifying the ground from the change in the brightness of the plurality of point data constituting the point cloud data. If mud is accumulated near the building to be treated due to the influence of flooding, the ground surface should be specified by acquiring point cloud data and image data up to the range where mud is not accumulated. Is possible.

(Step S107: Flood height measurement process)
Based on the point cloud data acquired in step S105, the inundation height measuring unit 114 of the inundation height measuring device 10 is perpendicular to the horizontal direction from the ground surface indicating the position of the ground to the inundation line indicating the upper limit position of inundation. Measure the distance as the inundation height.
Specifically, the inundation height measuring unit 114 specifies the point data corresponding to the ground surface specified in step S106. The inundation height measuring unit 114 identifies the point data corresponding to the inundation line identified in step S106. The inundation height measuring unit 114 measures the inundation height from the position indicated by the point data corresponding to the ground surface and the position indicated by the point data corresponding to the inundation line. Specifically, the inundation height is measured from the difference between the position indicated by the point data corresponding to the ground surface and the position indicated by the point data corresponding to the inundation line.
At this time, the inundation height measuring unit 114 may specify the vertical direction from the point cloud data, or may specify the vertical direction by using the sensor mounted on the inundation height measuring device 10. For example, the inundation height measuring unit 114 may specify the horizontal direction by specifying the point data constituting the ground from the point cloud data, and specify the vertical direction with respect to the horizontal direction. Further, the inundation height measuring unit 114 may specify a pillar or the like of a building from the point cloud data, and specify the longitudinal direction of the pillar as a direction perpendicular to the horizontal direction.

(Step S108: height determination process)
The height determination unit 115 of the inundation height measuring device 10 determines whether or not the inundation height measured in step S107 is equal to or higher than the reference height. Here, the standard height is 45 centimeters, which is a requirement for insurance payment.
If the inundation height is equal to or higher than the reference height, the height determination unit 115 determines that the insurance payment requirement is satisfied, and proceeds to step S109. On the other hand, if the inundation height is less than the reference height, the height determination unit 115 determines that the insurance payment requirement is not satisfied, and ends the process.

(Step S109: Rate information request processing)
The communication unit 111 of the inundation height measuring device 10 transmits request data requesting rate information about the building to be processed to the master management device 20 via the communication interface 14. In the request data, the inundation height measured in step S107, the point cloud data and the target image acquired in step S105, the information indicating the position of the inundation line specified in step S106, and the amount of insurance money are calculated. Includes information that indicates the damage situation that can identify the rate for doing so.
Then, the communication unit 211 of the master management device 20 receives the transmitted request data.

(Step S110: Rate information transmission process)
The communication unit 211 of the master management device 20 specifies the rate based on the request data received in step S109. Specifically, the communication unit 211 specifies the rate with reference to the rate information 233. As shown in FIG. 7, the rate information 233 includes a rate for each damage situation. The damage situation is the inundation rate of the building. Then, the communication unit 211 transmits the rate data indicating the specified rate to the inundation height measuring device 10 via the communication interface 24. Then, the communication unit 111 of the inundation height measuring device 10 receives the rate data.

(Step S111: Insurance claim calculation process)
The insurance money calculation unit 116 of the inundation height measuring device 10 calculates the insurance money payment amount from the rate data received in step S110 and the building information received in step S104. The insurance money calculation unit 116 displays the calculated payment amount on the display device.
The communication unit 111 transmits the amount data indicating the calculated payment amount to the master management device 20 via the communication interface 14. Then, the communication unit 111 of the master management device 20 receives the amount data and writes the payment amount indicated by the amount data in the item of the payment amount of the accident information 234.

As shown in FIG. 8, the accident information 234 includes the inundation height, the acquired data, the outline of the insurance accident, and the payment amount for each building identification information and insurance accident number. In step S109, the insurance accident number is assigned, the inundation height is written in the inundation height item corresponding to the identification information of the building to be processed and the assigned insurance accident number, and the point cloud data is added to the acquisition data item. And the target image and the flood line are written. In step S111, the payment amount indicated by the amount data is written in the payment amount item. An overview of the insurance accident will be written later by the assessor.

*** Effect of Embodiment 1 ***
As described above, the inundation height measuring device 10 according to the first embodiment measures the inundation height based on the point cloud data measured by the optical sensor 141. As a result, it is not necessary to photograph a major or an object of known size together with the flooded building, and the flood height can be easily measured.

When an object of known measure or size is photographed together with a flooded building and the inundation height is measured, the inundation height may be disguised by disguising the object to be photographed together with the building. Therefore, the determination as to whether or not the insurance payment requirement based only on the image data taken by the policyholder is satisfied is unreliable.
However, in the inundation height measuring device 10 according to the first embodiment, since the inundation height is measured from the point cloud data, it is difficult to disguise. Therefore, it is highly reliable to determine whether or not the insurance claim payment requirement based on the point cloud data acquired by the policyholder using the inundation height measuring device 10 is satisfied.

The user who uses the inundation height measuring device 10 is not limited to the policyholder, but may be an assessor of an insurance company. If the user is an insurance company assessor, the building list information transmitted in step S102 indicates the buildings that are allowed to be assessed by the assessor.

*** Other configurations ***
<Modification 1>
In the first embodiment, each functional component is realized by software. However, as a modification 1, each functional component may be realized by hardware. The difference between the first modification and the first embodiment will be described.

With reference to FIG. 9, the configuration of the inundation height measuring device 10 according to the first modification will be described.
When each functional component is realized by hardware, the flood height measuring device 10 includes an electronic circuit 15 instead of the processor 11, the memory 12, and the storage 13. The electronic circuit 15 is a dedicated circuit that realizes the functions of each functional component, the memory 12, and the storage 13.

The configuration of the master management device 20 according to the first modification will be described with reference to FIG. 10.
When each functional component is realized by hardware, the master management device 20 includes an electronic circuit 25 instead of the processor 21, the memory 22, and the storage 23. The electronic circuit 25 is a dedicated circuit that realizes the functions of each functional component, the memory 22, and the storage 23.

The electronic circuits 15 and 25 include a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, a logic IC, a GA (Gate Array), an ASIC (Application Specific Integrated Circuit), and an FPGA (Field-Programmable Gate Array). ) Is assumed.
Each functional component may be realized by one electronic circuit 15, 25, or each functional component may be distributed and realized by a plurality of electronic circuits 15, 25.

<Modification 2>
As a modification 2, some functional components may be realized by hardware, and other functional components may be realized by software.

Processors 11 and 21, memories 12, 22 and storages 13, 23 and electronic circuits 15, 25 are called processing circuits. That is, the function of each functional component is realized by the processing circuit.

Embodiment 2.
The second embodiment is different from the first embodiment in that the inundation line is specified by using the trained model. In the second embodiment, these different points will be described, and the same points will be omitted.

*** Explanation of configuration ***
The configuration of the inundation height measuring device 10 according to the second embodiment will be described with reference to FIG.
The inundation height measuring device 10 differs from the inundation height measuring device 10 shown in FIG. 2 in that the learned model 131 is stored in the storage 13. The trained model 131 is a model that infers the flooded upper limit position from the input image which is the image data of the flooded building.

*** Explanation of operation ***
The operation of the damage assessment system 100 according to the second embodiment will be described with reference to FIG.
The processing from step S101 to step S105 and the processing from step S107 to step S111 are the same as those in the first embodiment.

(Step S106: Inundation range specifying process)
The inundation range specifying unit 113 of the inundation height measuring device 10 identifies an inundation line indicating an inundation upper limit position based on the target image acquired in step S105. In the second embodiment, the inundation range specifying unit 113 specifies the inundation line based on the target image acquired in step S105 by using the trained model 131. Specifically, the inundation range specifying unit 113 specifies the inundation upper limit position output from the learned model 131 as an inundation line by giving the target image to the learned model 131 as an input.

Further, the inundation range specifying unit 113 specifies the ground surface of the building to be processed from the point cloud data acquired in step S105, as in the first embodiment.

Here, the trained model 131 uses a set of the image data of the building taken when the assessor of the insurance company measured the inundation height in the past and the position of the inundation line specified by the assessor as training data. It is a model generated by training. The location of the inundation line identified by the assessor is the so-called correct data. That is, the trained model 131 is trained by supervised learning. For learning, for example, a neural network is used.

*** Effect of Embodiment 2 ***
As described above, the inundation height measuring device 10 according to the second embodiment identifies the inundation line by using the trained model 131. As a result, it is not necessary for the user to specify the flood line as in the first embodiment. Therefore, the inundation height can be measured more easily than in the first embodiment.

*** Other configurations ***
<Modification 3>
In the second embodiment, the trained model 131 is stored in the storage 13 of the inundation height measuring device 10. However, the trained model 131 may be stored in the storage 23 of the master management device 20, or may be stored in another device connected to the inundation height measuring device 10 via the transmission line 30. In this case, the inundation range specifying unit 113 of the inundation height measuring device 10 reads the trained model 131 via the communication interface 14 and uses the trained model 131 when specifying the inundation line.
As a result, when the trained model 131 is updated by the master management device 20 or the like, the inundation line can be specified by using the latest trained model 131. When the trained model 131 is updated, it means that training is performed using new training data. For example, when the validity of the inundation line written in the accident information 234 is confirmed in step S109, a set of the inundation line and the target image used to identify the inundation line is given as learning data. The trained model 131 is trained.

Embodiment 3.
The third embodiment is different from the first and second embodiments in that the candidate positions of the inundation lines specified by using the trained model 131 are shown and the inundation lines are designated. In the third embodiment, these different points will be described, and the same points will be omitted.
The third embodiment will explain the differences from the second embodiment.

*** Explanation of configuration ***
With reference to FIG. 12, the configuration of the inundation height measuring device 10 according to the third embodiment will be described.
The inundation height measuring device 10 is different from the inundation height measuring device 10 shown in FIG. 11 in that the learning unit 117 is provided as a functional component. The learning unit 117 is realized by software or hardware like other functional components.

*** Explanation of operation ***
The operation of the damage assessment system 100 according to the third embodiment will be described with reference to FIG.
The process from step S101 to step S105 and the process from step S107 to step S111 are the same as those in the second embodiment.

(Step S106: Inundation range specifying process)
The inundation range specifying unit 113 of the inundation height measuring device 10 identifies an inundation line indicating an inundation upper limit position based on the target image acquired in step S105. In the third embodiment, the inundation range specifying unit 113 specifies one or more candidate positions of the inundation line based on the target image acquired in step S105 by using the trained model 131. Specifically, the inundation range specifying unit 113 is the inundation upper limit position output from the trained model 131 by giving the target image to the trained model 131 as an input, and the accuracy is higher than the threshold value. The inundated upper limit position determined to be inundated is specified as a candidate position for the inundation line. The inundation range specifying unit 113 identifies the inundation line by displaying the target image after showing the candidate position and accepting the designation of the inundation upper limit position in the target image. For example, the inundation range specifying unit 113 displays each candidate position on the target image and causes the user to select one of the candidate positions to specify the inundation line.

Further, the inundation range specifying unit 113 specifies the ground surface of the building to be processed from the point cloud data acquired in step S105, as in the second embodiment.

Each time the process of step S106 is executed, or periodically, the learning unit 117 learns a set of the inundation line specified in step S106 and the target image used for specifying the inundation line. As data, the trained model 131 is trained. As a result, the trained model 131 is updated.

*** Effect of Embodiment 3 ***
As described above, the inundation height measuring device 10 according to the third embodiment indicates the candidate position of the inundation line specified by using the trained model 131, and causes the inundation line to be designated. This makes it possible to more appropriately identify the inundation line.
For example, if the wall surface of the building is dirty or the like, the trained model 131 may identify the wrong position as a flood line. However, the inundation height measuring device 10 according to the third embodiment can correct such an error.

Further, in the inundation height measuring device 10 according to the third embodiment, the learned model 131 is updated by the learning unit 117. As a result, it is possible to gradually improve the accuracy of the trained model 131. That is, in the inundation height measuring device 10 according to the third embodiment, the inundation line is finally designated by the user. Therefore, it is possible to perform learning using the designated inundation line as correct answer data.

The "part" in the above description may be read as "circuit", "process", "procedure", "processing" or "processing circuit".

The embodiments and modifications of the present disclosure have been described above. Some of these embodiments and modifications may be combined and carried out. In addition, any one or several may be partially carried out. The present disclosure is not limited to the above embodiments and modifications, and various modifications can be made as necessary.

100 Damage assessment system, 10 Inundation height measuring device, 11 Processor, 12 Memory, 13 Storage, 14 Communication interface, 15 Electronic circuit, 111 Communication unit, 112 Data acquisition unit, 113 Inundation range identification unit, 114 Inundation height measurement unit, 115 Height determination unit, 116 insurance claim calculation unit, 117 learning unit, 131 trained model, 141 optical sensor, 142 optical camera, 20 master management device, 21 processor, 22 memory, 23 storage, 24 communication interface, 25 electronic circuit, 211 Communication unit, 212 Judgment unit, 231 User information, 232 Contract information, 233 Rate information, 234 Accident information, 30 Transmission line.

Claims (10)

It is obtained by measuring the area including the flooded building from the ground to the flooded upper limit position by the optical sensor that measures the position of the reflection point by irradiating the irradiation light and receiving the reflected light reflected at the reflection point. A data acquisition unit that acquires point cloud data, which is a plurality of point data indicating the positions of the reflection points.
Based on the point cloud data acquired by the data acquisition unit, the inundation height measures the distance in the direction perpendicular to the horizontal direction from the ground surface indicating the position of the ground to the inundation line indicating the upper limit position of inundation. Inundation height measuring device equipped with a high measuring unit. The data acquisition unit is an image data about a region where the point cloud data has been acquired, and is a target image which is image data in which each of the plurality of point data constituting the point cloud data and a pixel are associated with each other. To get,
The inundation height measuring device further
Based on the target image acquired by the data acquisition unit, the inundation range specifying unit for specifying the inundation line is provided.
The inundation height measuring device according to claim 1, wherein the inundation height measuring unit measures a vertical distance from the ground surface to the inundation line specified by the inundation range specifying unit as an inundation height. The inundation height measuring device according to claim 2, wherein the inundation range specifying unit displays the target image and accepts the designation of the inundation upper limit position in the target image to specify the inundation line. The inundation range specifying unit identifies the inundation line based on the target image acquired by the data acquisition unit using a learned model that infers the inundation upper limit position from the input image which is the image data of the inundated building. The inundation height measuring device according to claim 2. The inundation range specifying unit is a candidate for the inundation line based on the target image acquired by the data acquisition unit using a trained model that infers the inundation upper limit position from the input image which is the image data of the inundated building. The inundation height measurement according to claim 2, wherein the inundation line is specified by specifying the position, displaying the target image after showing the candidate position, and accepting the designation of the inundation upper limit position in the target image. Device. The inundation height measuring unit includes the position indicated by the point cloud data related to the ground surface among the point cloud data acquired by the data acquisition unit, and the point data related to the inundation line among the point cloud data acquired by the data acquisition unit. The inundation height measuring device according to any one of claims 1 to 5, wherein the inundation height is measured from the position indicated by. The inundation height measuring device further
The inundation height measuring device according to any one of claims 1 to 6, further comprising a height determining unit for determining whether or not the inundation height measured by the inundation height measuring unit is equal to or higher than a reference height. The inundation height measuring device further
The inundation height according to claim 7, further comprising an insurance money calculation unit for calculating the amount of flood damage insurance money for the building when the height determination unit determines that the inundation height is equal to or higher than the reference height. Measuring device. The data acquisition unit irradiates the irradiation light and receives the reflected light reflected at the reflection point to measure the position of the reflection point. Point cloud data, which is a plurality of point data indicating the positions of the reflection points obtained by measurement, is acquired.
Based on the point cloud data, the inundation height measurement unit measures the inundation height by measuring the distance perpendicular to the horizontal direction from the ground surface indicating the position of the ground to the inundation line indicating the upper limit position of inundation. Method. It is obtained by measuring the area including the flooded building from the ground to the flooded upper limit position by the optical sensor that measures the position of the reflection point by irradiating the irradiation light and receiving the reflected light reflected at the reflection point. A data acquisition process for acquiring point cloud data, which is a plurality of point data indicating the positions of the reflection points, and
Based on the point cloud data acquired by the data acquisition process, the inundation height measures the distance in the direction perpendicular to the horizontal direction from the ground surface indicating the position of the ground to the inundation line indicating the upper limit position of inundation. An inundation height measurement program that makes a computer function as an inundation height measurement device that performs high measurement processing.

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