Search

JP-7855922-B2 - Map generation device, map generation method, and program

JP7855922B2JP 7855922 B2JP7855922 B2JP 7855922B2JP-7855922-B2

Inventors

  • 本橋 輝行

Assignees

  • 日本電気株式会社

Dates

Publication Date
20260511
Application Date
20220520

Claims (9)

  1. In an emergency situation, including a fire, a building information acquisition means acquires building information, including the exterior shape of the target building as seen from above, for a target building for which detailed information about the interior of the building has not been acquired . A map generation means that extracts the outline of the target building from the acquired building information, defines a frame according to the extracted outline of the target building, and divides the inside of the defined frame into grid cells corresponding to the size of the real world to generate a floor map of the inside of the target building , The system includes output means for outputting the generated floor map to terminal devices used by firefighters and their commanders who carry out firefighting operations in the target building , The aforementioned building information acquisition means is From the image of the target building taken from a side view, the openings of the target building are extracted. The map generation means is A map generating device that adds symbols indicating openings in the target building to the floor map .
  2. Location information acquisition means for acquiring location information of at least one worker working inside the aforementioned target building, The map generation device according to claim 1, further comprising: a map updating means for adding the worker's position to the floor map according to the acquired location information.
  3. The aforementioned map updating means is The map generation device according to claim 2, which highlights the display of the cell corresponding to the position where the worker has passed.
  4. The system includes a sensor data acquisition means for acquiring sensor data, including measurement values related to the object to be detected inside the target building, The aforementioned map updating means is The map generation device according to claim 2, which displays the cell corresponding to the position where the detection target is detected in order to highlight it according to the measured value of the sensor data relating to the detection target.
  5. The system includes a marker location information acquisition means for acquiring marker location information, including the location of a marker set by the worker inside the target building, The aforementioned map updating means is The map generation device according to claim 2, which highlights the display of the cell corresponding to the position where the marker is set, according to the settings made by the operator.
  6. The system includes a determination means for determining whether to activate an alert based on the positional relationship between the highlighted cell and the worker's position. The determination means is, If the positional relationship between the highlighted cell and the worker's position satisfies the conditions for triggering the alert, an instruction to output the alert regarding the worker is output to the output means. The output means is The map generation device according to claim 4 or 5, which outputs the alert concerning the worker in response to an instruction from the determination means.
  7. The aforementioned map updating means is A map generating device according to any one of claims 3 to 5, which changes the display of the cell according to the elapsed time since the update time when the display of the cell was updated.
  8. Computers In an emergency situation, including a fire, for a target building for which detailed information about the interior of the building has not been obtained, building information including the exterior shape of the target building as seen from above will be obtained. From the acquired building information, the outline of the target building is extracted. The frame is defined to match the outline of the extracted target building, The interior of the defined frame is divided into a grid of cells corresponding to the size of the real world to generate a floor map of the interior of the target building . The generated floor map is output to a terminal device used by the firefighters and their commander who are carrying out firefighting operations in the target building . In acquiring the aforementioned building information, From the image of the target building taken from a side view, the openings of the target building are extracted. In generating the aforementioned floor map, A map generation method that adds symbols indicating openings in the target building to the floor map .
  9. In an emergency situation, including a fire, for a target building for which detailed information about the interior has not been obtained, a process is performed to obtain building information, including the exterior shape of the target building as seen from above. A process to extract the outline of the target building from the acquired building information, A process to define a frame according to the outline of the extracted target building, A process to generate a floor map of the interior of the target building by dividing the interior of the defined frame into grid cells corresponding to the size of the real world , The process involves outputting the generated floor map to terminal devices used by the firefighters and their commanders who carry out firefighting operations in the target building , In the process of acquiring the aforementioned building information, From the image of the target building taken from a side view, the openings of the target building are extracted. In the process of generating the floor map, A program that causes a computer to perform the process of adding symbols indicating openings in the aforementioned building to the floor map .

Description

This disclosure relates to a map generation device, etc., that generates maps of the interior of a building. During firefighting operations, firefighters may need to enter a building to extinguish the fire. In such cases, if the team leader can ascertain the situation of the firefighters inside the building, they can issue appropriate instructions to them. For example, if the team leader knows the location of the firefighters inside the building, they can give instructions tailored to each firefighter's position. If a map of the building's interior (hereinafter referred to as a floor map) is available, the location of team members within the building can be displayed on the terminal used by the team leader. For large buildings, it is easier to obtain information about the interior. However, for the vast majority of buildings, including private residences, it is not always possible to obtain information about the interior. Furthermore, satellite positioning such as GPS (Global Positioning System) cannot accurately determine the location of team members working inside a building. Therefore, accurately determining the location of team members working inside a building is essential. Patent Document 1 discloses a system for tracking the position of moving objects. The system in Patent Document 1 determines the initial position of at least one node inside a building based on multilateration from an unmanned aerial vehicle flying outside the building. The nodes include fixed nodes and moving nodes. For example, a moving node is installed on the helmet of a person moving inside the building. The system in Patent Document 1 determines the velocity vector associated with the node based on multilateration. The system in Patent Document 1 also detects the rotation of the node. Based on the node's velocity vector and rotation, the system in Patent Document 1 tracks the node as it moves inside the building, applying an adaptive aperture to address the node's non-uniform velocity. Patent Document 2 discloses a cleaning map display device that displays a floor map of the floor on which an autonomous vacuum cleaner is traveling. The device in Patent Document 2 determines a position in the movement trajectory of the autonomous vacuum cleaner that satisfies predetermined conditions. The device in Patent Document 2 displays a trajectory image, which shows the location corresponding to the determined position that satisfies the predetermined conditions in a different display manner than other locations, superimposed with the floor map on the display unit. U.S. Patent No. 11089432International Publication No. 2020/235295 This is a block diagram showing an example of the configuration of a map generation device according to the first embodiment.This is a conceptual diagram showing an example of building information acquired by the map generation device according to the first embodiment.This is a conceptual diagram showing an example of a method for acquiring building information obtained by a map generation device according to the first embodiment.This is a conceptual diagram showing an example of building information acquired by the map generation unit of the map generation device according to the first embodiment.This is a conceptual diagram showing an example of a floor map frame defined by the map generation unit of the map generation device according to the first embodiment.This is a conceptual diagram showing an example of a floor map generated by the map generation unit of the map generation device according to the first embodiment.This is a conceptual diagram showing an example of a method for acquiring building information obtained by a map generation device according to the first embodiment.This is a conceptual diagram showing an example of a floor map generated by the map generation unit of the map generation device according to the first embodiment.This is a conceptual diagram showing an example of a floor map generated by the map generation unit of the map generation device according to the first embodiment.This is a flowchart illustrating an example of the operation of the map generation device according to the first embodiment.This is a block diagram showing an example of the configuration of a map generation device according to the second embodiment.This is a conceptual diagram showing an example of a floor map updated by the map update unit of the map generation device according to the second embodiment.This is a conceptual diagram showing an example of a floor map updated by the map update unit of the map generation device according to the second embodiment.This is a conceptual diagram showing an example of a floor map updated by the map update unit of the map generation device according to the second embodiment.This is a conceptual diagram showing an example of a floor map updated by the map update unit of the map generation device according to the second embodiment.This is a flowchart illustrating an example o