The present invention relates to a technique for providing information about the possibility of a work machine being affected by a disaster to an operator or the like of the work machine.
A technique for designating a dike break point of any river as an assumed dike break point and analyzing flooding in real time based on river information such as an amount of rainfall and a water level (e.g., information such as observation data of a rainfall amount radar, a telemeter, and the like, water level prediction data, a disaster-affected depth a disaster-affected range, a dike break width, and the like) has been proposed (see, e.g., Patent Literature 1). Only input of any dike break point of the river makes it possible to use the river information at a current time point, calculate analysis of flooding and prediction of a water level of a river channel in real time, and dynamically display an assumed disaster-affected area for each dike break point and for each time series.
A technique for calculating the possibility of a disaster occurrence with high accuracy and providing, in a diagnosis of a risk of being affected by a disaster in a diagnosis target area for supporting decision making of a road administrator or the like, the diagnosis of the risk of being affected by a disaster in real time and a diagnosis result easily understandable for a user has been proposed (see, e.g., Patent Literature 2).
In the diagnosis of the risk of being affected by a disaster in the diagnosis target area, a technique for diagnosing a risk of being affected, which can make diagnosis of the risk of being affected by a disaster in real time and provision of a diagnosis result easily understandable for a user compatible with each other has been proposed (see, e.g., Patent Literature 3). According to the technique, a storage amount of each of meshes is calculated based on information about a rainfall distribution. Further, a virtual water level of the mesh the storage amount of which is not less than a maximum storage amount of a virtual conduit and is less than an upper-limit storage amount as a sum of the maximum storage amount of the virtual conduit and a maximum storage amount of a virtual manhole is calculated. A virtual water level of the mesh the storage amount of which is not less than the upper-limit storage amount is calculated, and various amounts required to evaluate a risk of each of the meshes being affected by a disaster are calculated using the virtual water level calculated depending on the storage amount. The diagnosis result of the risk of being affected by a disaster is provided as a hazard map in real time or support information for operating a rain water drainage facility and a rain water storage facility to be operated in real time. For example, the mesh the storage amount of which exceeds the maximum storage amount is displayed in yellow, and the mesh the storage amount of which exceeds the upper-limit storage amount is displayed in red.
Patent Literature 1: Japanese Patent Laid-Open No. 2004-197554
Patent Literature 2: Japanese Patent Laid-Open No. 2017-194344
Patent Literature 3: Japanese Patent Laid-Open No. 2019-139455
When a work machine such as a construction machine is affected by a disaster due to external water flooding or internal water flooding, there occurs a situation where the work machine fails, for example.
The present invention is directed to providing a technique capable of providing information about the possibility of a work machine being affected by a disaster to persons involved in the work machine in real time.
A disaster countermeasure support server according to the present invention includes
a first support processing element configured to recognize a first designated area that affects the possibility of a work machine being affected by a disaster in a second designated area including an existence position of the work machine depending on whether an amount of rainfall is large or small and recognize an amount of rainfall in the first designated area, and
a second support processing element configured to predict the possibility of the work machine being affected by a disaster in the second designated area based on the existence position of the work machine and the amount of rainfall in the first designated area, which have been recognized by the first support processing element, generate a hazard map representing a result of the prediction of the possibility of the work machine being affected by a disaster in the second designated area, and output the hazard map to an output interface in a client based on communication with the client.
According to the disaster countermeasure support server having the configuration, the possibility of the work machine being affected by a disaster in the second designated area including the existence position of the work machine is predicted based on the amount of rainfall in the first designated area. If determination whether an amount of rainfall in an area is large or small affects determination whether the possibility of the work machine being affected by a disaster in the second designated area where the work machine exists is high or low, the area is recognized as the first designated area.
The hazard map representing the prediction result of the possibility of the work machine being affected by a disaster in the second designated area is outputted to the output interface in the client. Accordingly, a user of the client can be made to recognize whether the possibility of the work machine existing in the second designated area being affected by a disaster is high or low through the hazard map. In response thereto, the user can take measures to reduce the possibility of the work machine being affected by a disaster, for example, to communicate with persons involved in order to move the work machine from a current position.
A disaster countermeasure support system as an embodiment of the present invention illustrated in
The disaster countermeasure support server 10 comprises a database 102, a first support processing element 121, and a second support processing element 122. The database 102 stores and holds picked-up image data or the like. The database 102 may be constituted by a database server separate from the disaster countermeasure support server 10. Each of the support processing elements is constituted by an arithmetic processing unit (a single core processor or a multi-core processor or a processor core constituting the processor), and reads required data and software from a storage device such as a memory and performs arithmetic processing, described below, conforming to the software with the data used as a target
The remote operation apparatus 20 comprises a remote control device 200, a remote input interface 210, and a remote output interface 220. The remote control device 200 is constituted by an arithmetic processing unit (a single core processor or a multi-core processor or a processor core constituting the processor), and reads required data and software from a storage device such as a memory and performs arithmetic processing conforming to the software with the data used as a target. The remote input interface 210 comprises a remote operation mechanism 211. The remote output interface 220 comprises an image output device 221 and remote wireless communication equipment 222.
The remote operation mechanism 211 includes a traveling operation device, a turning operation device, a boom operation device, an arm operation device, and a bucket operation device. Each of the operation devices has an operation lever that receives a rotation operation. The operation lever (traveling lever) of the traveling operation device is operated to move a lower traveling body 410 of the work machine 40. The traveling lever may also serve as a traveling pedal. For example, a traveling pedal fixed to a base portion or a lower end portion of the traveling lever may be provided. An operation lever (turning lever) of the turning operation device is operated to move a hydraulic turning motor constituting a turning mechanism 430 in the work machine 40. An operation lever (boom lever) of the boom operation device is operated to move a boom cylinder 442 in the work machine 40. An operation lever (arm lever) of the arm operation device is operated to move an arm cylinder 444 in the work machine 40. An operation lever (bucket lever) of the bucket operation device is operated to move a bucket cylinder 446 in the work machine 40.
Each of the operation levers constituting the remote operation mechanism 211 is arranged around a seat St for an operator to sit, as illustrated in
A pair of left and right traveling levers 2110 respectively corresponding to left and right crawlers are laterally arranged side by side in front of the seat St. One operation lever may also serve as a plurality of operation levers. For example, a left-side operation lever 2111 provided in front of a left-side frame of the seat St illustrated in
The image output device 221 comprises a central image output device 2210, a left-side image output device 2211, and a right-side image output device 2212 respectively having substantially rectangular screens arranged in front of, diagonally leftward in front of, and diagonally rightward in front of the seat St, as illustrated in
As illustrated in
The respective screens of the central image output device 2210, the left-side image output device 2211, and the right-side image output device 2212 may be parallel to one another in a vertical direction, or may be inclined in the vertical direction. At least one image output device of the central image output device 2210, the left-side image output device 2211, and the right-side image output device 2212 may be constituted by a plurality of separated image output devices. For example, the central image output device 2210 may be constituted by a pair of image output devices, which are vertically adjacent to each other, each having a substantially rectangular screen. Each of the image output devices 2210 to 2212 may further comprise a speaker (voice output device).
The work machine 40 comprises an actual machine control device 400, an actual machine input interface 41, an actual machine output interface 42, and a work attachment 440. The actual machine control device 400 is constituted by an arithmetic processing unit (a single core processor or a multi-core processor or a processor core constituting the processor), and reads required data and software from a storage device such as a memory and performs arithmetic processing conforming to the software with the data used as a target.
The work machine 40 is a crawler shovel (construction machine), for example, and comprises a crawler-type lower traveling body 410 and an upper turning body 420 to be turnably loaded into the lower traveling body 410 via the turning mechanism 430. A front left side portion of the upper turning body 420 is provided with a cab 424 (an operation room). A front central portion of the upper turning body 420 is provided with the work attachment 440.
The actual machine input interface 41 comprises an actual machine operation mechanism 411, an actual machine image pickup device 412, and a positioning device 414. The actual machine operation mechanism 411 comprises a plurality of operation levers arranged similarly to the remote operation mechanism 211 around a seat arranged in the cab 424. The cab 424 is provided with a driving mechanism or a robot that receives a signal corresponding to an operation mode of the remote operation levers and moves an actual machine operation lever based on the received signal. The actual machine image pickup device 412 is installed in the cab 424, for example, and picks up an image of an environment including at least a part of the work attachment 440 through a front window and a pair of left and right side windows. Some or all of the front window and the side windows may be omitted. The positioning device 414 is constituted by a GPS and a gyro sensor or the like, if necessary.
The actual machine output interface 42 comprises actual machine wireless communication equipment 422.
As illustrated in
The boom cylinder 442 is interposed between the boom 441 and the upper turning body 420 by expanding and contracting upon being supplied with hydraulic oil to rotate the boom 441 in a rise-fall direction. The arm cylinder 444 is interposed between the arm 443 and the boom 441 by expanding and contracting upon being supplied with hydraulic oil to rotate the arm 443 around a horizontal axis relative to the boom 441. The bucket cylinder 446 is interposed between the bucket 445 and the arm 443 by expanding and contracting upon being supplied with hydraulic oil to rotate the bucket 445 around a horizontal axis relative to the arm 443.
The management client 60 is a terminal device such as a smartphone or a tablet terminal, and comprises a control device 600, a management input interface 610, and a management output interface 620. The control device 600 is constituted by an arithmetic processing unit (a single core processor or a multi-core processor or a processor core constituting the processor), and reads required data and software from a storage device such as a memory and performs arithmetic processing conforming to the software with the data used as a target
The management input interface 610 is constituted by a button of a touch panel type and a switch, for example. The management output interface 620 comprises an image output device and wireless communication equipment.
A function of the remote operation support system having the above-described configuration will be described with reference to a flowchart illustrated in
In the remote operation apparatus 20 (or the management client 60), the presence or absence of a first designation operation through the remote input interface 210 by the operator is determined (
In the disaster countermeasure support server 10, if the hazard map request is received (
In the work machine 40, if the position information request is received through the actual machine wireless communication equipment 422 (
In the disaster countermeasure support server 10, if the first support processing element 121 recognizes the position information (
A map representing respective positions of work machines 40 is displayed on the remote output interface 220 in the remote operation apparatus 20 (or the management client 60), a point is designated or selected through the remote input interface 210, and position data representing the position of the work machine 40 existing at or closest to the point is transmitted to the disaster countermeasure support server 10 from the remote operation apparatus 20 so that the first support processing element 121 may recognize the position information.
With respect to external water flooding, for example, if the second designated area is an area including the downstream side of a river, an area including the upstream side of the river is recognized as the first designated area. With respect to internal water flooding, an area where there exists a rain water storage facility consecutive 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 as or different from each other. The first designated area and the second designated area may be spaced apart from each other or adjacent to each other, and respective parts thereof may overlap each other. The first designated area may include the second designated area.
The map representing the respective positions of the work machines 40 is displayed on the remote output interface 220 in the remote operation apparatus 20 (or the management client 60), an area is designated through the remote input interface 210, and designated area data representing the designated area is transmitted to the disaster countermeasure support server 10 from the remote operation apparatus 20 so that the first support processing element 121 may recognize the designated area as the first designated area.
The first support processing element 121 recognizes an amount of rainfall in the first designated area (an amount of rainfall for each unit time) based on communication with a weather information database as a weather information source (
The second support processing element 122 predicts the possibility of the work machine 40 being flooded in the second designated area as the possibility of the work machine 40 being affected by a disaster (
With respect to external water flooding, a water level of a river included in or proximate to the first designated area or the second designated area is considered so that the possibility of being affected by a disaster in the second designated area may be predicted. With respect to internal water flooding, items such as a line number, an inflow line number, an area, an outflow coefficient, a reaching time, a flow rate, an extension, and a cross section in each of the areas are considered, whereby an amount of rainfall and a flow rate and a water level of a conduit, for example, are calculated in real time so that the possibility of being affected by a disaster in the second designated area may be predicted based on a result of the calculation (see Patent Literature 2).
The second support processing element 122 generates a hazard map representing a result of the prediction of the possibility of being affected by a disaster in the second designated area, and the hazard map is transmitted to the remote operation apparatus 20 (
The first support processing element 121 may further recognize as disaster factors respective ground levels at a plurality of points in the second designated area by referring to map information stored and held in the database 102, and the second support processing element 122 may generate a hazard map based on the existence position of the work machine 40, the amount of rainfall in the first designated area, and the respective ground levels (disaster factors) at the plurality of points in the second designated area.
In the remote operation apparatus 20, the remote control device 200 receives the hazard map (
In the remote operation apparatus 20, the remote control device 200 determines whether or not two points or a designated line segment connecting the two points have or has been designated in the hazard map through the remote input interface 210 (
As illustrated in
In the disaster countermeasure support server 10, if the second support processing element 122 receives or recognizes data representing the designated line segment (
In the remote operation apparatus 20, if the remote control device 200 receives the designated topographical sectional view (
A further function of the disaster countermeasure support system having the above-described configuration will be described with reference to a flowchart illustrated in
In the remote operation apparatus 20, the presence or absence of a second designation operation through the remote input interface 210 by the operator is determined (
In the disaster countermeasure support server 10, if the environment confirmation request is received, the first support processing element 121 transmits the environment confirmation request to the corresponding work machine 40 (
In the work machine 40, if the environment confirmation request is received through the actual machine wireless communication equipment 422 (
In the disaster countermeasure support server 10, if the first support processing element 121 receives the picked-up image data (
In the remote operation apparatus 20, if the environment image data is received through the remote wireless communication equipment 222 (
As a result, an environment image on which a boom 441, an arm 443, and a bucket 445, as parts of the work attachment 440, are reflected is outputted to the image output device 221, as illustrated in
In the remote operation apparatus 20, the remote control device 200 recognizes an operation mode of the remote operation mechanism 211 (
In the disaster countermeasure support server 10, if 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 (
In the work machine 40, if the actual machine control device 400 receives the remote operation command through the actual machine wireless communication equipment 422 (
According to the disaster countermeasure support system having the configuration and the disaster countermeasure support server 10 and the remote operation apparatus 20 constituting the disaster countermeasure support system, the possibility of the work machine 40 being affected by a disaster in the second designated area including an existence position of the work machine 40 is predicted based on an amount of rainfall in the first designated area (see
A hazard map representing a result of the prediction of the possibility of the work machine 40 being affected by a disaster in the second designated area is outputted to the remote output interface 220 in the remote operation apparatus 20 (the client) (or the management output interface 620 in the management client 60) (see
The first support processing element 121 further recognizes respective ground levels at a plurality of points in the second designated area as disaster factors, and the second support processing element 122 generates a hazard map based on an existence position of the work machine 40, an amount of rainfall in the first designated area, and the respective disaster factors at the plurality of points in the second designated area, which have been recognized by the first support processing element 121.
In this case, the possibility of the work machine being affected by a disaster in the second designated area is predicted in such a form that the respective disaster factors, i.e., the respective ground levels at the plurality of points in the second designated area are considered. For example, it is considered that the possibility of the work machine 40 being flooded in a location where the ground level is relatively low is higher than that in a location where the ground level is relatively high, or that the possibility of the work machine 40 being flooded is low because a location is surrounded by a location where the ground level is relatively high even if the ground level thereof is relatively low. As a result, the prediction accuracy of the possibility of the work machine 40 being affected by a disaster at each of the plurality of points in the second designated area is improved, and a hazard map having higher usefulness can be presented to the user of the client such as the remote operation apparatus 20 from the viewpoint of reducing the possibility of the work machine 40 being affected by a disaster.
The first support processing element 121 recognizes a time series pattern of the amount of rainfall in the first designated area, and refers to the database 102 storing past time series patterns of the amount of rainfall in the first designated area and past time series patterns of a disaster-affected state at each of the points in the second designated area in association, so as to recognize the time series pattern of the disaster-affected state in the second designated area most associated with the time series pattern of the amount of rainfall in the first designated area, and the second support processing element 122 predicts a time series pattern of the possibility of the work machine 40 being affected by a disaster based on the time series pattern of the disaster-affected state in the second designated area recognized by the first support processing element 121 and generates a hazard map in the second designated area representing a result of the prediction of the time series pattern of the possibility of the work machine 40 being affected by a disaster.
The possibility of the work machine 40 being affected by a disaster in the second designated area is predicted in such a form that a correlation between the past time series patterns of the amount of rainfall in the first designated area and the past time series patterns of the disaster-affected state in the second designated area, which have been registered in the database 102, is considered. The disaster-affected state is defined by the presence or absence of flooding and a depth of flooding of a house, a vehicle, or the like in the second designated area. For example, the past time series pattern of the disaster-affected state in the second designated area, which corresponds to the past time series pattern of the amount of rainfall in the first designated area, most approximate to the time series pattern of the amount of rainfall in the first designated area is recognized as the most associated time series pattern of the disaster-affected state in the second designated area. The possibility of the work machine 40 being affected by a disaster is evaluated to be high in a time period corresponding to a time period during which the work machine 40 has been affected by a disaster based on the most associated time series pattern of the disaster-affected state in the second designated area. As a result, the prediction accuracy of the possibility of the work machine 40 being affected by a disaster in the second designated area is improved, and a dynamic or time-sequential hazard map having higher usefulness can be presented to the user of the remote operation apparatus 20 or the management client 60 from the viewpoint of reducing the possibility of the work machine being affected by a disaster.
The first support processing element 121 recognizes a designated line segment, which has been designated through the remote input interface 210, connecting two points in the hazard map outputted to the remote output interface 220 based on communication with the remote operation apparatus 20 (the client), and the second support processing element 122 generates a designated topographical sectional view along the designated line segment recognized by the first support processing element 121 and outputs the designated topographical sectional view to the remote output interface 220 based on communication with the remote operation apparatus 20.
The user of the remote operation apparatus 20 (the client) can designate the designated line segment connecting the two points through the remote input interface 210 in the hazard map displayed on the remote output interface 220 and recognize the designated topographical sectional view of the second designated area in the designated line segment in the remote output interface 220 (see
A first support processing element 121 may recognize respective disaster factors at a plurality of points in a first designated area instead of or in addition to a second designated area, and a second support processing element 122 may generate a hazard map based on an existence position of a work machine 40, an amount of rainfall in the first designated area, and the respective disaster factors at the plurality of points in at least one designated area of the first designated area and the second designated area. As the disaster factors, a geographical condition may be recognized instead of or in addition to a ground level. The “geographical condition” may be defined by a classification of rocks such as an igneous rock, a sedimentary rock, a metamorphic rock, or may be defined by a classification of a landfill, a current river bed deposit, an old river channel deposit, a natural bank deposit, a dike type, a granite type, and the like conceptualized as a high-level concept.
A hazard map considering that the possibility of the work machine being affected by a landslide disaster in a location where a geological condition is relatively brittle is higher than that in a location where a geological condition is relatively hard is presented to a user of a remote operation apparatus 20 (or a management client 60) (see FIG.s 6 and 7). As a result, the prediction accuracy of the possibility of the work machine being affected by a disaster at each of the plurality of points in the second designated area is improved, and the usefulness of the hazard map is improved from the viewpoint of reducing the possibility of the work machine 40 being affected by a landslide disaster.
A hazard map considering that the possibility of the work machine 40 being affected by a landslide disaster is high because a geological condition at a point in the first designated area (a point proximate to an existence point of the work machine 40) is relatively brittle and a ground level is relatively higher than an existence point of the work machine 40 in the second designated area is presented to the user of the remote operation apparatus 20 (or the management client 60) (see FIG.s 6 and 7). As a result, the prediction accuracy of the possibility of the work machine being affected by a disaster at each of the plurality of points in the second designated area is improved, and the usefulness of the hazard map is improved from the viewpoint of reducing the possibility of the work machine 40 being affected by a landslide disaster.
10 . . . disaster countermeasure support server, 20 . . . remote operation apparatus, 40 . . . work machine, 41 . . . actual machine input interface, 42 . . . actual machine output interface, 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 . . . lower traveling body, 420 . . . upper turning body, 424 . . . cab (operation room), 440 . . . work attachment (operation mechanism), 445 . . . bucket (work portion).
Number | Date | Country | Kind |
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2020-025646 | Feb 2020 | JP | national |
Filing Document | Filing Date | Country | Kind |
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PCT/JP2021/000475 | 1/8/2021 | WO |