Disaster countermeasure support server, disaster countermeasure support system, and disaster countermeasure support method

Abstract

To provide a technique of providing, in real time, information on the possibility that a work machine is getting visited by a disaster to a person related to the work machine.SOLUTION: The possibility that a work machine 40 is getting visited by a disaster in a second specific area including the location of the work machine is predicted on the basis of the amount of precipitation in a first specific area. A hazard map showing the prediction result of the possibility that the work machine 40 is getting visited by a disaster in the second specific area is output to a remote output interface 220 of a remote operation device 20 (a client) or to an output interface 620 of a management client 60. In response to this, a user can take measures to reduce the possibility that the work machine is getting visited by a disaster, such as contacting a person concerned to move the work machine 40 from a current position.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a technique for providing an operator or the like of a work machine with information regarding the possibility of the work machine being involved in a disaster. [Background technology]

[0002] A technology has been proposed that performs real-time flood analysis by designating any river levee breach point as a predicted levee breach point based on river information such as rainfall and water level (for example, observation data from rainfall radar, telemeters, etc., water level prediction data, and information such as damage depth, damage range, and levee breach width) (for example, see Patent Document 1). By simply inputting any river levee breach point, the current river information can be used to perform real-time flood analysis and river channel water level prediction calculations, and the predicted disaster area can be dynamically displayed for each levee breach point and for each time series.

[0003] A technology has been proposed for accurately calculating the possibility of disaster occurrence to support decision-making by road managers and others, and for diagnosing the disaster risk in a target area in real time and providing diagnosis results that are easy for users to understand (see, for example, Patent Document 2).

[0004] A disaster risk diagnosis technology has been proposed that can simultaneously diagnose the disaster risk in a diagnosis target area in real time and provide a diagnosis result that is easy for users to understand (see, for example, Patent Document 3). According to this technology, the storage volume of each mesh is calculated based on rainfall distribution information. Furthermore, a virtual water level is calculated for a mesh whose storage volume is equal to or greater than the maximum storage volume of a virtual pipeline and less than the upper limit storage volume, which is the sum of the maximum storage volume of the virtual pipeline and the maximum storage volume of a virtual manhole. Furthermore, a virtual water level is calculated for a mesh whose storage volume is equal to or greater than the upper limit storage volume, and various quantities required for evaluating the disaster risk of each mesh are calculated using the virtual water level calculated according to the storage volume. Then, the result of the disaster risk diagnosis is provided as a real-time hazard map or support information for the operation of rainwater drainage facilities and rainwater storage facilities operated in real time. For example, a mesh whose storage volume exceeds the maximum storage volume is displayed in yellow, and a mesh whose storage volume exceeds the upper limit storage volume is displayed in red. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2004-197554 A [Patent Document 2] JP 2017-194344 A [Patent Document 3] JP 2019-139455 A Summary of the Invention [Problem to be solved by the invention]

[0006] If construction machinery or other work machinery is damaged by external or internal flooding, the work machinery may break down.

[0007] Therefore, an object of the present invention is to provide a technique that can provide information regarding the possibility of a work machine being damaged in real time to those involved with the work machine. [Means for solving the problem]

[0008] The disaster prevention support server of the present invention is characterized in that it comprises a first support processing element that recognizes a first designated area in which the amount of precipitation affects the possibility of damage in a second designated area which includes the location of a work machine, and recognizes the amount of precipitation in the first designated area, and a second support processing element that predicts the possibility of damage to the work machine in the second designated area based on the location of the work machine recognized by the first support processing element and the amount of precipitation in the first designated area, creates a hazard map showing the predicted result of the possibility of damage to the work machine in the second designated area, and outputs the hazard map to an output interface of the client based on communication with the client.

[0009] According to the disaster control support server having this configuration, the possibility of damage to a work machine in a second designated area including the location of the work machine is predicted based on the amount of precipitation in the first designated area. When the amount of precipitation in a certain area affects the degree of damage possibility in the second designated area where the work machine is located, the area is recognized as the first designated area.

[0010] A hazard map showing the predicted result of the possibility of damage to the work machine in the second designated area is then output to the output interface of the client. Therefore, the user of the client can recognize the degree of the possibility of damage to the work machine that exists in the second designated area through the hazard map. In response to this, the user can take measures to reduce the possibility of damage to the work machine, such as contacting relevant parties to move the work machine from its current position.

[0011] In the disaster prevention support server of the present invention, it is preferable that the first support processing element further recognizes at least one of the ground height and geology at each of a plurality of points in at least one of the first designated area and the second designated area as disaster factors, and the second support processing element creates the hazard map based on the location of the work machine recognized by the first support processing element, the amount of precipitation in the first designated area, and the disaster factors at each of a plurality of points in at least one of the first designated area and the second designated area.

[0012] According to the disaster countermeasure support server of this configuration, the possibility of damage to the work machine in the second designated area is predicted in a form that takes into consideration disaster factors at each of a plurality of points in at least one of the first and second designated areas, i.e., at least one of the ground height and geology. For example, it is taken into consideration that a place where the ground is relatively low is more likely to be flooded than a place where the ground is relatively high, or that even if the ground is relatively low, the ground is surrounded by relatively high points, so the possibility of flooding the work machine is low. It is also taken into consideration that a place where the ground is relatively weak is more likely to be damaged by a landslide disaster than a place where the ground is relatively hard, or that the ground at a certain point in the first designated area is relatively weak and the ground is relatively higher than the point where the work machine is located in the second designated area, so the possibility of damage to the work machine is high. This improves the accuracy of predicting the possibility of damage to work machines at each of the multiple points in the second designated area, and a more useful hazard map can be presented to the client user in terms of reducing the possibility of damage to work machines.

[0013] In the disaster prevention support server of the present invention, it is preferable that the first support processing element recognizes a time series pattern of rainfall in the first designated area, and by referring to a database which stores past time series patterns of rainfall in the first designated area in association with time series patterns of past damage conditions at each point in the second designated area, recognizes a time series pattern of damage conditions in the second designated area which is most relevant to the time series pattern of rainfall in the first designated area, and the second support processing element predicts a time series pattern of the possibility of damage to the work machine based on the time series pattern of the damage conditions in the second designated area recognized by the first support processing element, and creates a hazard map for the second designated area showing the predicted result of the time series pattern of the damage possibility of the work machine.

[0014] According to the disaster countermeasure support server having the above configuration, the possibility of damage to the work machine in the second designated area is predicted in a form that takes into consideration the correlation between the past time series pattern of the amount of rainfall in the first designated area and the past time series pattern of the damage state in the second designated area. The damage state is defined by the presence or absence of damage to houses or vehicles in the second designated area and the depth of the damage. For example, the past time series pattern of the damage state in the second designated area that corresponds to the past time series pattern of the amount of rainfall in the first designated area that is most similar to the time series pattern of the amount of rainfall in the first designated area is recognized as the most relevant time series pattern of the damage state in the second designated area. Based on the most relevant time series pattern of the damage state in the second designated area, the possibility of damage is highly evaluated in the time period corresponding to the time period when the damage occurred. This improves the prediction accuracy of the damage possibility of the work machine in the second designated area, and a dynamic or time series hazard map that is more useful from the viewpoint of reducing the damage possibility of the work machine can be presented to the client user.

[0015] In the disaster prevention support server of the present invention, it is preferable that the first support processing element recognizes a specified line segment connecting two points on the hazard map that is specified through the input interface of the client and is output to the output interface based on communication with the client, creates a specified terrain cross-sectional view along the specified line segment recognized by the first support processing element, and outputs the specified terrain cross-sectional view to the output interface of the client based on communication with the client.

[0016] According to the disaster countermeasure support server having this configuration, a client user can specify a designated line segment connecting two points through the input interface on the hazard map displayed on the output interface, and recognize a designated topographical cross section of the second designated area on the designated line segment on the output interface. This allows the user to more intuitively grasp the difference in ground elevation between different points, the water level or flood depth of a river, etc., and encourages the user to take appropriate measures to reduce the possibility of damage to the work machine.

[0017] In the disaster countermeasure support server of the present invention, it is preferable that the client is configured with a remote control device for remotely controlling the work machine.

[0018] According to the disaster countermeasure support server having such a configuration, an operator who remotely operates a work machine using a remote control device can be made aware of the degree of possibility of the work machine being damaged in the second designated area through the output interface of the remote control device. In response to this, the operator can take measures to reduce the possibility of the work machine being damaged, such as moving the work machine using the remote control device or contacting relevant parties to move the work machine from its current position. [Brief description of the drawings]

[0019] [Figure 1] 1 is an explanatory diagram relating to the configuration of a disaster countermeasure support system according to an embodiment of the present invention; [Diagram 2] FIG. 2 is an explanatory diagram relating to the configuration of a remote control device. [Diagram 3] FIG. 2 is an explanatory diagram relating to the configuration of a work machine. [Figure 4] FIG. 1 is an explanatory diagram of the functions of a disaster countermeasure support system. [Diagram 5] An explanatory diagram regarding the time series pattern of precipitation in a first designated area and the time series pattern of damage depth in a second designated area. [Figure 6] FIG. 4 is an explanatory diagram regarding a display mode of a hazard map. [Figure 7] FIG. 1 is an explanatory diagram regarding designated lines on a hazard map. [Figure 8A] An explanatory diagram of the specified topographical cross section along the specified line segment P1-P2 in Figure 7. [Figure 8B] An explanatory diagram regarding the specified topographical cross-section along the specified line segment Q1-Q2 in Figure 7. [Figure 9] FIG. 1 is an explanatory diagram of the functions of a disaster countermeasure support system. [Figure 10] FIG. 4 is an explanatory diagram relating to a display mode of an environmental image. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] (Configuration of Disaster Countermeasures Support System) The disaster countermeasure support system as one embodiment of the present invention shown in Fig. 1 is composed of a disaster countermeasure support server 10 and a remote operation device 20 for remotely operating a work machine 40. The disaster countermeasure support server 10, the remote operation device 20, the work machine 40, and the management client 60 are configured to be able to communicate with each other via a network. The mutual communication network of the disaster countermeasure support server 10 and the remote operation device 20 and the mutual communication network of the disaster countermeasure support server 10 and the work machine 40 may be the same as or different from each other.

[0021] (Disaster Countermeasures Support Server Configuration) The disaster countermeasure support server 10 includes a database 102, a first support processing element 121, and a second support processing element 122. The database 102 stores captured image data and the like. The database 102 may be configured as a database server separate from the disaster countermeasure support server 10. Each support processing element is configured with an arithmetic processing device (a single-core processor or a multi-core processor or a processor core constituting the same), reads necessary data and software from a storage device such as a memory, and executes arithmetic processing (described later) on the data in accordance with the software.

[0022] (Configuration of remote control device) The remote operation device 20 includes a remote control device 200, a remote input interface 210, and a remote output interface 220. The remote control device 200 is configured with a calculation processing device (a single-core processor or a multi-core processor or a processor core constituting the same), reads necessary data and software from a storage device such as a memory, and executes calculation processing according to the software on the data. The remote input interface 210 includes a remote operation mechanism 211. The remote output interface 220 includes an image output device 221 and a remote wireless communication device 222.

[0023] The remote operation mechanism 211 includes a traveling operation device, a slewing operation device, a boom operation device, an arm operation device, and a bucket operation device. Each operation device has an operation lever that receives a rotation operation. The operation lever (travel lever) of the traveling operation device is operated to move the lower traveling body 410 of the work machine 40. The travel lever may also serve as a travel pedal. For example, a travel pedal fixed to the base or lower end of the travel lever may be provided. The operation lever (slewing lever) of the slewing operation device is operated to move a hydraulic slewing motor that constitutes the slewing mechanism 430 of the work machine 40. The operation lever (boom lever) of the boom operation device is operated to move the boom cylinder 442 of the work machine 40. The operation lever (arm lever) of the arm operation device is operated to move the arm cylinder 444 of the work machine 40. The operation lever (bucket lever) of the bucket operation device is operated to move the bucket cylinder 446 of the work machine 40.

[0024] The operating levers constituting the remote control mechanism 211 are arranged around a seat St on which the operator sits, as shown in Fig. 2. The seat St is in the form of a high-back chair with armrests, but may be in the form of a low-back chair without a headrest, or in the form of a chair without a backrest, or in any other form on which the operator can sit.

[0025] A pair of left and right travel levers 2110 corresponding to the left and right crawlers are arranged side by side in front of the seat St. One operation lever may also serve as multiple operation levers. For example, the left operation lever 2111 provided in front of the left frame of the seat St shown in FIG. 2 may function as an arm lever when operated in the front-rear direction, and may function as a rotation lever when operated in the left-right direction. Similarly, the right operation lever 2112 provided in front of the right frame of the seat St shown in FIG. 2 may function as a boom lever when operated in the front-rear direction, and may function as a bucket lever when operated in the left-right direction. The lever pattern may be arbitrarily changed by an operation instruction from the operator.

[0026] 2, the image output device 221 is composed of a central image output device 2210, a left image output device 2211, and a right image output device 2212, each having a substantially rectangular screen arranged in front of the seat St, diagonally forward to the left, and diagonally forward to the right. The shapes and sizes of the screens (image display areas) of the central image output device 2210, the left image output device 2211, and the right image output device 2212 may be the same or different.

[0027] As shown in Fig. 2, the right edge of the left image output device 2211 is adjacent to the left edge of the central image output device 2210 such that the screens of the central image output device 2210 and the left image output device 2211 form an inclination angle θ1 (e.g., 120°≦θ1≦150°). As shown in Fig. 2, the left edge of the right image output device 2212 is adjacent to the right edge of the central image output device 2210 such that the screens of the central image output device 2210 and the right image output device 2212 form an inclination angle θ2 (e.g., 120°≦θ2≦150°). The inclination angles θ1 and θ2 may be the same or different.

[0028] The screens of the central image output device 2210, the left image output device 2211, and the right image output device 2212 may be parallel to the vertical direction or may be inclined to the vertical direction. At least one of the central image output device 2210, the left image output device 2211, and the right image output device 2212 may be composed of a plurality of divided image output devices. For example, the central image output device 2210 may be composed of a pair of image output devices adjacent to each other above and below, each having a substantially rectangular screen. The image output devices 2210 to 2212 may further include a speaker (audio output device).

[0029] (Work machine configuration) The work machine 40 is equipped with an actual machine control device 400, an actual machine input interface 41, an actual machine output interface 42, and an operating mechanism 440. The actual machine control device 400 is composed of an arithmetic processing device (a single-core processor or a multi-core processor or a processor core constituting the same), reads necessary data and software from a storage device such as a memory, and executes arithmetic processing on the data in accordance with the software.

[0030] The work machine 40 is, for example, a crawler excavator (construction machine), and as shown in Fig. 2, includes a crawler-type lower traveling body 410, and an upper rotating body 420 that is rotatably mounted on the lower traveling body 410 via a rotating mechanism 430. A cab 424 (operator's cabin) is provided on the front left side of the upper rotating body 420. A work mechanism 440 is provided in the front center of the upper rotating body 220.

[0031] The real machine input interface 41 includes a real machine operation mechanism 411, a real machine imaging device 412, and a positioning device 414. The real machine operation mechanism 411 includes a plurality of operation levers arranged around a seat arranged inside the cab 424 in the same manner as the remote control mechanism 211. A drive mechanism or robot that receives a signal according to the operation mode of the remote control lever and moves the real machine operation lever based on the received signal is provided in the cab 424. The real machine imaging device 412 is installed, for example, inside the cab 424, and images the environment including at least a part of the operating mechanism 440 through the front window and a pair of left and right side windows. A part or all of the front window and the side windows may be omitted. The positioning device 414 is configured with a GPS and, if necessary, a gyro sensor or the like.

[0032] The real device output interface 42 includes a real device wireless communication device 422 .

[0033] 3, the working mechanism 440 as an operating mechanism includes a boom 441 mounted on the upper rotating body 420 so as to be able to rise and fall, an arm 443 rotatably connected to the tip of the boom 441, and a bucket 445 rotatably connected to the tip of the arm 443. The working mechanism 440 is equipped with a boom cylinder 442, an arm cylinder 444, and a bucket cylinder 446, each of which is constituted by an extendable and retractable hydraulic cylinder.

[0034] The boom cylinder 442 is interposed between the boom 441 and the upper rotating body 420 so as to extend and retract when supplied with hydraulic oil to rotate the boom 441 in the hoisting direction. The arm cylinder 444 is interposed between the arm 443 and the boom 441 so as to extend and retract when supplied with hydraulic oil to rotate the arm 443 about a horizontal axis relative to the boom 441. The bucket cylinder 446 is interposed between the bucket 445 and the arm 443 so as to extend and retract when supplied with hydraulic oil to rotate the bucket 445 about a horizontal axis relative to the arm 443.

[0035] (Administrative client configuration) The management client 60 is a terminal device such as a smartphone or a tablet terminal, and includes a control device 600, a management input interface 610, and a management output interface 620. The control device 600 is configured with an arithmetic processing device (a single-core processor or a multi-core processor or a processor core constituting the same), reads necessary data and software from a storage device such as a memory, and executes arithmetic processing on the data according to the software.

[0036] The management input interface 610 is configured with touch panel type buttons and switches, etc. The management output interface 620 includes an image output device and a wireless communication device.

[0037] (First function) The functions of the remote operation support system having the above configuration will be described with reference to the flowchart shown in Fig. 4. In the flowchart, a block "C●" is used for the sake of simplicity, and means transmission and / or reception of data, and means a conditional branch in which processing in the branching direction is executed on the condition that the data is transmitted and / or received.

[0038] In the remote operation device 20 (or the management client 60), it is determined whether or not a first designation operation has been performed by an operator through the remote input interface 210 (FIG. 4 / STEP 210). The "first designation operation" is, for example, an operation such as tapping on the remote input interface 210 for designating one work machine 40 on a map showing the respective positions of the multiple work machines 40. If the determination result is negative (FIG. 4 / STEP 210...NO), the process after the determination of whether or not a first designation operation has been performed is repeated. On the other hand, if the determination result is positive (FIG. 4 / STEP 210...YES), a hazard map request is transmitted to the disaster countermeasure support server 10 through the remote wireless communication device 222 (FIG. 4 / STEP 212). The request includes a work machine identifier for identifying a work machine 40 with which communication has been established with the remote operation device 20 or a work machine 40 designated through the remote input interface 210.

[0039] When a hazard map request is received in the disaster prevention support server 10 (Figure 4 / C10), the first support processing element 121 sends a location information request to the work machine 40 identified by the work machine identifier included in the hazard map (Figure 4 / STEP 110).

[0040] When the work machine 40 receives a position information request via the actual machine wireless communication device 422 (FIG. 4 / C40), the actual machine control device 400 recognizes the position information (specified by latitude and longitude, or latitude, longitude and altitude) of the work machine 40 via the positioning device 414 (FIG. 4 / STEP 410). The actual machine control device 400 transmits the position information or position data representing it to the remote operation device 10 via the actual machine wireless communication device 422 (FIG. 4 / STEP 412).

[0041] In the disaster countermeasure support server 10, when the first support processing element 121 recognizes location information (FIG. 4 / C11), the second support processing element 122 recognizes a first designated area (FIG. 4 / STEP 111). When the amount of precipitation in an area affects the likelihood of disaster in a second designated area including the location of the work machine 40, that area is recognized as the first designated area. The first and second designated areas are associated with each other and registered in the database 102.

[0042] A map indicating the position of the work machine 40 may be displayed on the remote output interface 220 of the remote control device 20 (or the management client 60), a certain point may be specified or selected via the remote input interface 210, and position data indicating the position of the work machine 40 that is present at or closest to that point may be transmitted from the remote control device 20 to the flood control support server 10, whereby the first support processing element 121 recognizes the position information.

[0043] For example, in the case of flooding by external water, if the second designated area is an area including the downstream side of a river, the area including the upstream side of the river is recognized as the first designated area. In addition, in the case of flooding by internal water, an area in which a storm water storage facility exists that is connected to a drainage channel included in the second designated area is recognized as the first designated area. The first designated area and the second designated area may be the same or different. The first designated area and the second designated area may be separated from each other, adjacent to each other, or partially overlapping. The first designated area may include the second designated area.

[0044] A map showing the position of the work machine 40 is displayed on the remote output interface 220 of the remote control device 20 (or the management client 60), an area is specified via the remote input interface 210, and designated area data representing the designated area is transmitted from the remote control device 20 to the flood control support server 10, whereby the first support processing element 121 recognizes the designated area as the first designated area.

[0045] The first support processing element 121 recognizes the amount of precipitation (amount of precipitation per unit time) in the first area based on communication with a weather information database that is a weather information source (FIG. 4 / STEP 112).

[0046] The second support processing element 122 predicts the possibility of flooding of the work machine 40 in the second designated area as the possibility of damage (FIG. 4 / STEP 114). For example, a time series pattern of precipitation in the first designated area as shown in the upper part of FIG. 5 and a time series pattern of the flooding depth (or the presence or absence of flooding) of houses and the like in the second designated area as shown in the lower part of FIG. 5 are associated and registered in the database 102. By referring to the database 102, a time series pattern of a flooded state or a damaged state in the second designated area that is most related (pattern similarity) to the time series pattern of the recent precipitation in the first designated area is recognized, and the second support processing element 122 predicts a time series pattern of the damage possibility of the work machine 40 based on the time series pattern of the damaged state in the second designated area, and a hazard map showing the predicted time series pattern of the damage possibility of the work machine 40 may be created.

[0047] With regard to flooding by external water, the possibility of damage in the second designated area may be predicted by taking into consideration the water levels of rivers included in or adjacent to the first or second designated area. With regard to flooding by internal water, the line number, inflow line number, area, runoff coefficient, flow time, flow velocity, length and cross section of each area may be taken into consideration to calculate the amount of rainfall and the flow rate and water level of the pipeline in real time, and the possibility of damage in the second designated area may be predicted based on the calculation results (see Patent Document 2).

[0048] A hazard map showing the predicted results of the possibility of damage in the second designated area is created by the second support processing element 122, and the hazard map is transmitted to the remote operation device 20 (FIG. 4 / STEP 116). As a result, for example, as shown in FIG. 6, a hazard map is created in which the degree of damage possibility is represented by shading in each of the meshes Sij (i, j = 1, 2, ...) that are rectangular areas constituting the second designated area. On this hazard map, icons R1 and R2 representing the work machine 40 are shown at the location of the work machine 40. The damage possibility may be quantified as "20%", "50%, etc., and the numerical value may be shown on the hazard map.

[0049] The first support processing element 121 may further recognize the ground height at each of the multiple points in the second designated area as a disaster factor by referring to the map information stored in the database 102, and the second support processing element 122 may create a hazard map based on the location of the work machine 40, the amount of precipitation in the first designated area, and the ground height (disaster factor) at each of the multiple points in the second designated area.

[0050] In the remote operation device 20, the hazard map is received by the remote control device 200 (Fig. 4 / C21), and the hazard map is output to the image output device 221 constituting the remote output interface 220 (Fig. 4 / STEP 212). This enables the operator to understand that the mesh S21, which is given a relatively dark color, and thus the first work machine 40, which is represented by the icon R1 contained therein, have a relatively high probability of being affected by the disaster. Furthermore, the operator can understand that the mesh S22, which is given a relatively light color, and thus the second work machine 40, which is represented by the icon R2 contained therein, have a relatively low probability of being affected by the disaster.

[0051] In the remote operation device 20, the remote control device 200 judges whether or not two points or a designated line segment connecting the two points have been designated on the hazard map through the remote input interface 210 (FIG. 4 / STEP 214). If the judgment result is negative (FIG. 4 / STEP 214...NO), the series of processes ends. If the judgment result is positive (FIG. 4 / STEP 214...YES), data representing the designated line segment is transmitted to the disaster countermeasure support server 10 (FIG. 4 / STEP 216).

[0052] For example, as shown in Fig. 7, a designated line segment P1-P2 connecting two points P1 and P2, and a designated line segment Q1-Q2 connecting two points Q1 and Q2 are designated on the hazard map. The designated line segment P1-P2 passes through an icon R1 representing a first work machine 40 or its vicinity. The designated line segment Q1-Q2 passes through an icon R2 representing a second work machine 40 or its vicinity. By tapping two points on the touch panel on which the hazard map is displayed, two points corresponding to the two points may be set as both end points of the designated line segment. By swiping on the touch panel on which the hazard map is displayed, a line segment following the trajectory of the swipe may be designated as the designated line segment.

[0053] In the disaster countermeasure support server 10, when the second support processing element 122 receives or recognizes data representing a designated line segment (FIG. 4 / C12), a designated terrain cross section along the designated line segment is created and transmitted to the remote control device 20 (FIG. 4 / STEP 118). For example, a designated terrain cross section as shown in FIG. 8A is created along the designated line segment P1-P2 shown in FIG. 7. Furthermore, a designated terrain cross section as shown in FIG. 8B is created along the designated line segment Q1-Q2 shown in FIG. 7. As with a hazard map, a numerical value or color representing a predicted result of the possibility of damage may be applied to the designated terrain cross section.

[0054] When the remote control device 200 receives the designated terrain cross section in the remote operation device 20 (FIG. 4 / C22), the designated terrain cross section is output to the image output device 221 constituting the remote output interface 220 (FIG. 4 / STEP 218). For example, the operator can understand through the designated terrain cross section shown in FIG. 8A that the height of the ground on which the first work machine 40 represented by the icon R1 is located is lower than the water level of the river, and that the first work machine 40 is located relatively close to the levee adjacent to the river, and further that this situation indicates that the possibility of damage to the mesh S21 including the first work machine 40 is evaluated relatively high. Furthermore, the operator can understand through the designated terrain cross section shown in FIG. 8B that the height of the ground on which the second work machine 40 represented by the icon R2 is located is lower than the water level of the river, but is located in a place where a relatively high hill is between the second work machine 40 and the levee, and further that this situation indicates that the possibility of damage to the mesh S22 including the second work machine 40 is evaluated relatively low.

[0055] (Second function) Further functions of the disaster countermeasure support system having the above configuration will be described with reference to the flowchart shown in Fig. 9. These functions may be realized by a server (remote operation support server) separate from the flood disaster countermeasure support server.

[0056] In the remote operation device 20, it is determined whether or not a second designation operation has been performed by the operator through the remote input interface 210 (FIG. 9 / STEP 220). The "second designation operation" is, for example, an operation such as tapping on the remote input interface 210 for the operator to designate the work machine 40 that he or she intends to remotely operate. If the determination result is negative (FIG. 9 / STEP 220...NO), the processes subsequent to the determination of the designation operation are repeated. On the other hand, if the determination result is positive (FIG. 9 / STEP 220...YES), an environment confirmation request is transmitted to the disaster countermeasure support server 10 through the remote wireless communication device 222 (FIG. 9 / STEP 222).

[0057] When the disaster countermeasure support server 10 receives an environment confirmation request, the first support processing element 121 transmits the environment confirmation request to the corresponding work machine 40 (FIG. 9 / C13).

[0058] When the work machine 40 receives an environment confirmation request through the actual machine wireless communication device 422 (FIG. 9 / C41), the actual machine control device 400 acquires a captured image through the actual machine imaging device 412 (FIG. 9 / STEP 420). The actual machine control device 400 transmits captured image data representing the captured image to the remote operation device 10 through the actual machine wireless communication device 422 (FIG. 9 / STEP 422).

[0059] In the disaster countermeasure support server 10, when the first support processing element 121 receives captured image data (FIG. 9 / C14), the second support processing element 122 transmits environmental image data corresponding to the captured image to the remote operation device 20 (FIG. 9 / STEP 102). The environmental image data is not only the captured image data itself, but also image data representing a simulated environmental image generated based on the captured image.

[0060] When the remote operation device 20 receives environmental image data through the remote wireless communication device 222 (FIG. 9 / C24), the remote control device 200 outputs an environmental image corresponding to the environmental image data to the image output device 221 (FIG. 9 / STEP 224).

[0061] As a result, for example, as shown in FIG. 10, an environmental image in which a boom 441, an arm 443, and a bucket 445, which are parts of a working mechanism 440, are reflected, is output to the image output device 221.

[0062] In the remote operation device 20, the operation mode of the remote operation mechanism 211 is recognized by the remote control device 200 (FIG. 9 / STEP 226), and a remote operation command corresponding to the operation mode is transmitted to the disaster prevention support server 10 via the remote wireless communication device 222 (FIG. 9 / STEP 228).

[0063] In the disaster countermeasure support server 10, when the second support processing element 122 receives the remote operation command, the first support processing element 121 transmits the remote operation command to the work machine 40 (FIG. 9 / C15).

[0064] In the work machine 40, when an operation command is received by the actual machine control device 400 via the actual machine wireless communication device 422 (FIG. 9 / C42), the operation of the work mechanism 440 and the like is controlled (FIG. 9 / STEP 424). For example, the work of scooping up soil in front of the work machine 40 with the bucket 445, rotating the upper rotating body 410, and dropping the soil from the bucket 445 is performed.

[0065] (effect) According to the disaster countermeasure support system having the above configuration, and the disaster countermeasure support server 10 and the remote control device 20 constituting the system, the possibility of damage to the work machine 40 in the second designated area including the location of the work machine 40 is predicted based on the amount of precipitation in the first designated area (see FIG. 4 / STEP 111→STEP 112→STEP 114). Then, a hazard map showing the predicted result of the damage possibility of the work machine 40 in the second designated area is output to the remote output interface 220 of the remote control device 20 (client) (or the output interface 620 of the management client 60) (see FIG. 4 / STEP 116→C21→STEP 212 and FIG. 6). Therefore, the user of the remote control device 20 can recognize the degree of damage possibility of the work machine 40 existing in the second designated area through the hazard map. In response to this, the user can take measures to reduce the damage possibility of the work machine, such as contacting relevant parties to move the work machine 40 from its current location.

[0066] The possibility of damage to the work machine 40 in the second designated area is predicted taking into consideration the correlation between the past time series pattern of rainfall in the first designated area registered in the database 102 and the past time series pattern of the damage state in the second designated area. This improves the accuracy of predicting the damage possibility of the work machine 40 in the second designated area, and a dynamic or time series hazard map that is more useful from the standpoint of reducing the damage possibility of the work machine can be presented to the user of the remote operation device 20 or the management client 60.

[0067] The user of the remote operation device 20 (client) can specify a designated line segment connecting two points on the hazard map displayed on the remote output interface 220 through the remote input interface 210, and recognize a designated topographical cross section of the second designated area on the designated line segment on the remote output interface 220 (see FIG. 4 / STEP 214→STEP 216→STEP 218, FIG. 7, FIG. 8A and FIG. 8B). This allows the user to more intuitively grasp the difference in ground elevation between different locations, the height of the water level in a river or the like, or the depth of damage, and can prompt the user to take appropriate measures to reduce the possibility of damage to the work machine.

[0068] (Another embodiment of the present invention) The first support processing element 121 may recognize disaster factors at each of a plurality of points in the first designated area instead of or in addition to the second designated area, and the second support processing element 122 may create a hazard map based on the location of the work machine 40, the amount of precipitation in the first designated area, and the disaster factors at each of a plurality of points in at least one of the first and second designated areas. Geology may be recognized as a disaster factor instead of or in addition to ground height. "Geology" may be defined by rock classification such as igneous rock, sedimentary rock, and metamorphic rock, or may be defined by classification such as more generalized concepts such as reclaimed land, current riverbed deposits, old river channel deposits, natural levee deposits, dikes, and granite.

[0069] A hazard map that takes into consideration that a work machine is more likely to be affected by a landslide disaster in an area with relatively weak geology than in an area with relatively hard geology is presented to the user of the remote control device 20 (or the management client 60) (see Figs. 6 and 7). This improves the accuracy of predicting the possibility of damage to a work machine at each of a plurality of points in the second designated area, and improves the usefulness of the hazard map from the viewpoint of reducing the possibility of damage to a landslide disaster for the work machine 40.

[0070] Also, a hazard map is presented to the user of the remote control device 20 (or management client 60) (see Figs. 6 and 7) that takes into consideration that the geology at a certain point in the first designated area (a point close to the location of the work machine 40) is relatively fragile and the ground is relatively higher than the location of the work machine 40 in the second designated area, making the work machine 40 more likely to be affected by a landslide disaster. This improves the accuracy of predicting the possibility of damage to the work machine at each of a plurality of points in the second designated area, and improves the usefulness of the hazard map from the perspective of reducing the possibility of damage to the work machine 40 from a landslide disaster. [Explanation of symbols]

[0071] 10: Disaster prevention support server, 20: Remote operation device, 40: Work machine, 102: Database, 121: First support processing element, 122: Second support processing element, 200: Remote control device, 210: Remote input interface, 211: Remote operation mechanism, 220: Remote output interface, 221: Image output device, 400: Actual machine control device, 410: Actual machine input interface, 420: Actual machine output interface, 424: Cab (operating room), 440: Work mechanism (operating mechanism), 445: Bucket (working part).

Claims

1. A disaster countermeasure support system for providing information on a possibility of damage to a work machine, a positioning device that recognizes position information of one work machine designated in a first designation operation that designates one work machine from among a plurality of work machines via an input interface; a processing device that recognizes weather information based on the location of the one work machine indicated by the location information, and predicts a prediction result of a damage possibility of the one work machine specified in the first specifying operation based on the location information and the weather information; an output interface provided in a client and configured to output the disaster probability prediction result; A disaster prevention support system that is equipped with the following:

2. 2. The disaster countermeasure support system according to claim 1, The client is a disaster countermeasure support system configured with a remote control device for remotely controlling the one of the work machines.

3. 3. The disaster countermeasure support system according to claim 2, A disaster countermeasure support system configured so that one work machine designated in a second designation operation for designating one work machine intended to be remotely operated from among a plurality of work machines via the input interface can be remotely operated in accordance with the operation mode of a remote operation mechanism of the remote operation device.

4. In the disaster countermeasure support system according to any one of claims 1 to 3, The processing device recognizes the weather information in a first designated area, which is an area different from a second designated area that includes the location of the one work machine specified in the first designation operation indicated by the location information, and which affects the possibility of damage in the second designated area, and predicts the predicted result of the possibility of damage to the one work machine specified in the first designation operation based on the location information and the weather information.

5. A positioning device for recognizing position information of one work machine; a processing device for recognizing meteorological information in a first designated area, which is an area different from a second designated area including the location of the one work machine indicated by the position information, and which affects the possibility of damage in the second designated area; a database in which a time series pattern of the weather information in the first designated area and a time series pattern of the disaster state in the second designated area are registered in association with each other; an output interface that outputs a prediction result of a damage possibility of the one work machine predicted based on the position information and the weather information; and Equipped with The database is referred to by the processing device, whereby a time series pattern of the damage state in the second designated area that is most related to a time series pattern of the most recent weather information in the first designated area is recognized by the processing device, and the prediction result is output to the output interface based on the recognized damage state. Disaster prevention support system.

6. 6. The disaster countermeasure support system according to claim 4, The processing device recognizes the location of the one work machine indicated by the location information and disaster factors at each of a plurality of points in the first designated area, and predicts the prediction result based on the weather information and the disaster factors. Disaster prevention support system.

7. In the disaster countermeasure support system according to any one of claims 4 to 6, The first designated area includes an area in which the ground level is higher than the location of the one work machine indicated by the position information. Disaster prevention support system.

8. The disaster countermeasure support system according to claim 7, The prediction result is predicted taking into consideration geology at each of a plurality of points in at least one of the first designated area and the second designated area. Disaster prevention support system.

9. In the disaster countermeasure support system according to any one of claims 1 to 8, The prediction result is a hazard map showing the possibility of damage from a landslide at the location of the one of the work machines indicated by the location information. Disaster prevention support system.

10. In the disaster countermeasure support system according to any one of claims 4 to 6, The first designated area includes the upstream side of a river close to the location of the one work machine indicated by the location information. Disaster prevention support system.

11. In the disaster countermeasure support system according to any one of claims 1 to 6, The prediction result is a hazard map showing the possibility of flooding at the location of the one work machine indicated by the location information. Disaster prevention support system.

12. A disaster countermeasure support server that provides information regarding a possibility of damage to a work machine, a process of recognizing position information of one work machine designated in a first designation operation for designating one work machine from among a plurality of work machines via an input interface; a process of recognizing weather information based on the location of the one work machine indicated by the location information, and predicting a prediction result of a damage possibility of the one work machine designated in the first designation operation based on the location information and the weather information; A process of outputting the predicted result of the disaster possibility to an output interface of a client; A disaster recovery support server that runs the following:

13. A process of recognizing position information of a work machine; a process of recognizing meteorological information in a first designated area, which is different from a second designated area including the location of the work machine indicated by the location information and which affects the possibility of damage to the second designated area; A process of referring to a database in which a time series pattern of the weather information in the first designated area and a time series pattern of the disaster state in the second designated area are registered in association with each other, and recognizing a time series pattern of the disaster state in the second designated area that is most related to the time series pattern of the most recent weather information in the first designated area; A process of outputting a prediction result of the possibility of damage to the work machine based on the recognized damage state to an output interface; A disaster recovery support server that runs the following:

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