Aircraft control system, aircraft control server, and aircraft control method

Abstract

To make it possible to designate a flight course of a flying object, which flies at a low altitude, by reflecting an up-to-date condition of a ground structure.SOLUTION: A flying object control system in accordance with the present invention includes a measurement instrument 11, a drone 30 that flies at a low altitude, and a flying object control server 20. The flying object control server 20 receives meteorological information which includes a measured wind direction and wind velocity, image data of the surroundings of the imaged measurement instrument 11, and acquired position information from the measurement instrument 11, records in a first database the meteorological information of a position and three-dimensional data of a ground structure based on the image data of the position for each position represented by the position information, predicts wind conditions of the position on the basis of the meteorological information of the position represented by the position information and the three-dimensional data, which are recorded in the first database, and topographic data of the position recorded in a second database, and transmits flight course information based on the predicted wind conditions to the drone 30.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an aircraft control system, an aircraft control server, and an aircraft control method. [Background technology]

[0002] Small drones are greatly affected by wind, so from the perspective of electricity consumption, it is best to fly them with a tailwind rather than against it. In addition, since small drones fly at low altitudes (20m or less), they are easily affected by localized winds caused by buildings, signs, and other ground structures.

[0003] Related technology for setting a drone's flight path taking into account the effects of wind includes the technology disclosed in Patent Document 1. According to the technology disclosed in Patent Document 1, a drone is flown vertically directly above, and wind direction and wind speed are measured from control information of the drone during flight. When selecting a flight route for a second drone, information on wind direction and wind speed related to the flight route is obtained by flying a first drone, and the flight route for the second drone is selected with reference to the information on wind direction and wind speed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-153792 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the technology disclosed in Patent Document 1 does not provide information on wind direction and speed at low altitudes where small drones fly. In addition, wind direction and speed at low altitudes vary depending on the presence or absence of ground structures, but the latest status of ground structures cannot be determined from weather maps and topographical data provided by the Geospatial Information Authority of Japan. Therefore, related technologies have the problem that it is difficult to set flight paths that can improve the power consumption of small drones flying at low altitudes.

[0006] The present invention has been made in consideration of the above-mentioned problems, and provides an aircraft control system, an aircraft control server, and an aircraft control method that are capable of setting a flight path for an aircraft flying at low altitude by reflecting the latest status of ground structures. [Means for solving the problem]

[0007] An aircraft control system according to one aspect of the present invention includes: a measuring device that measures wind direction and wind speed, photographs the surroundings of the measuring device, and acquires position information that indicates the position of the measuring device when the measurements and photographs were taken; A low-altitude flying object, An aircraft control server for controlling the aircraft; The flying object control server, a receiving unit that receives from the measuring device weather information including wind direction and wind speed measured by the measuring device, image data of the surroundings of the measuring device photographed by the measuring device, and the location information acquired by the measuring device; a first database that records, for each location represented by the location information, the weather information for that location and three-dimensional data of a ground structure based on the image data for that location; a second database for recording topographical data; a prediction unit that predicts wind conditions at a position represented by the position information, based on the meteorological information and the three-dimensional data of the position represented by the position information recorded in the first database and the topographical data of the position recorded in the second database; The system also includes a transmission unit that transmits flight path information based on the wind conditions predicted by the prediction unit to the flying object.

[0008] According to one aspect of the present invention, there is provided an aircraft control server, An aircraft control server for controlling an aircraft flying at low altitude, a receiving unit that receives from the measuring device weather information including wind direction and wind speed measured by the measuring device, image data of the surroundings of the measuring device photographed by the measuring device, and location information obtained by the measuring device and indicating the location of the measuring device when the measurement and the photographing were performed; a first database that records, for each location represented by the location information, the weather information for that location and three-dimensional data of a ground structure based on the image data for that location; a second database for recording topographical data; a prediction unit that predicts wind conditions at a position represented by the position information, based on the meteorological information and the three-dimensional data of the position represented by the position information recorded in the first database and the topographical data of the position recorded in the second database; The system also includes a transmission unit that transmits flight path information based on the wind conditions predicted by the prediction unit to the flying object.

[0009] A method for controlling an aircraft according to one aspect of the present invention includes: A method for controlling an aircraft that flies at low altitude, the method comprising: a receiving step of receiving from a measuring device meteorological information including wind direction and wind speed measured by the measuring device, image data of the surroundings of the measuring device photographed by the measuring device, and location information obtained by the measuring device and indicating the location of the measuring device when the measurement and the photographing were performed; a first recording step of recording, for each position represented by the position information, the weather information for that position and three-dimensional data of a ground structure based on the image data for that position in a first database; a second recording step of recording the topographical data in a second database; a prediction step of predicting wind conditions at a position represented by the position information, based on the meteorological information and the three-dimensional data of the position recorded in the first database and the topographical data of the position recorded in the second database; The method includes a transmission step of transmitting flight path information based on the wind conditions predicted by the prediction step to the aircraft. Effect of the Invention

[0010] According to the above-described aspects of the present invention, it is possible to provide an aircraft control system, an aircraft control server, and an aircraft control method that can set a flight path for an aircraft flying at low altitude by reflecting the latest status of ground structures. [Brief description of the drawings]

[0011] [Figure 1] 1 is a diagram illustrating an example of the configuration of an aircraft control system according to an embodiment. [Diagram 2] 2 is a block diagram showing an example configuration of an aircraft control server according to an embodiment. FIG. [Diagram 3] FIG. 4 is a diagram showing an example of data recorded in a first database in the embodiment. [Figure 4] 4 is a sequence diagram showing an example of a schematic processing flow of an aircraft control system according to an embodiment. FIG. [Diagram 5] FIG. 1 is a diagram showing an example of a flight path of a drone calculated by a related technology. [Figure 6] A figure showing an example of a flight path of a drone calculated by a prediction unit in an embodiment. [Figure 7] A block diagram showing an example of the hardware configuration of a computer that realizes the aircraft control server according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings described below, the same or corresponding elements are denoted by the same reference numerals, and repeated description will be omitted as necessary.

[0013] <Embodiment Mode> First, with reference to FIG. 1, a configuration example of an aircraft control system 1 according to the present embodiment will be described.

[0014] As shown in Fig. 1, the aircraft control system 1 according to this embodiment includes an automobile 10 equipped with a measuring device 11, an aircraft control server 20, and a drone 30. Note that, for the sake of simplicity, only one automobile 10 and one drone 30 are illustrated in Fig. 1, but the number of automobiles 10 and drones 30 may be two or more.

[0015] The measuring device 11 is installed at any location on the automobile 10. However, the anemometer, which is included in the measuring device 11 and will be described later, needs to be installed outside the vehicle. The measuring device 11 receives power from the automobile 10 to realize the following functions. This allows the measuring device 11 to easily secure the power required to realize the following functions.

[0016] The measuring device 11 has a function of measuring wind direction and wind speed. To realize this function, the measuring device 11 can be equipped with, for example, an anemometer.

[0017] The measuring device 11 also has a function of capturing images of the surroundings of the measuring device 11. To achieve this function, the measuring device 11 can be equipped with, for example, a camera. Alternatively, the measuring device 11 can utilize an on-board camera mounted on the automobile 10.

[0018] Furthermore, the measuring device 11 has a function of acquiring location information indicating the location of the measuring device 11 when the above measurements and photographs were taken. To realize this function, the measuring device 11 can be equipped with, for example, a GPS (Global Positioning System) device. Alternatively, the measuring device 11 can utilize a car navigation system installed in the automobile 10.

[0019] The measuring device 11 also has a function of wirelessly transmitting the above-measured weather information including the wind direction and wind speed, the above-captured image data of the surroundings of the measuring device 11, and the above-acquired position information to the flying object control server 20. To realize this function, the measuring device 11 can be equipped with, for example, a communication device of any communication method. Note that, although direct communication is performed between the measuring device 11 and the flying object control server 20 in FIG. 1, communication may be performed via a base station or an artificial satellite, etc., depending on the communication method.

[0020] The automobile 10 activates the measuring device 11 while the automobile 10 is stopped, and stops the measuring device 11 when the automobile 10 starts to move. Therefore, while the automobile 10 is stopped, the measuring device 11 measures the wind direction and wind speed, photographs the surroundings of the measuring device 11, acquires location information, and transmits weather information, image data, and location information to the aircraft control server 20. Note that the above is performed while the automobile 10 is stopped in order to improve the accuracy of measuring the wind direction and wind speed.

[0021] The drone 30 is an aircraft that flies at low altitude (at an altitude of 20 m or less). The drone 30 is capable of autonomous flight according to a flight path (flight route and altitude) set for the drone 30. In this embodiment, the drone 30 is assumed to be a small drone.

[0022] The aircraft control server 20 is a server that controls the drone 30 based on weather information, image data, location information, etc. received from the measuring device 11.

[0023] Next, a configuration example of the aircraft control server 20 according to this embodiment will be described with reference to FIG. 2, the aircraft control server 20 according to this embodiment includes a receiving unit 21, a prediction unit 22, a transmitting unit 23, a first database (denoted as "DB" in the figure; the same applies below) 24, and a second database 25. The receiving unit 21, the prediction unit 22, the transmitting unit 23, the first database 24, and the second database 25 are connected to each other via a communication bus.

[0024] The receiving unit 21 receives from the measuring device 11 weather information including wind direction and wind speed measured by the measuring device 11, image data of the surroundings of the measuring device 11 photographed by the measuring device 11, and location information obtained by the measuring device 11.

[0025] The first database 24 records the weather information, image data, and location information received by the receiving unit 21. Specifically, as shown in Fig. 3, the first database 24 records, for each location indicated by the location information, the weather information for that location and three-dimensional data of ground structures (e.g., buildings, signs, etc.) based on the image data for that location. In the example of Fig. 3, the three-dimensional data is the image data itself, but is not limited to this. For example, the image data may be processed into three-dimensional data that can identify ground structures existing around that location, and the processed three-dimensional data may be recorded in the first database 24. Recording and updating of the first database 24 is performed by the prediction unit 22.

[0026] When weather information, image data, and location information are received by the receiving unit 21, the prediction unit 22 determines whether weather information and three-dimensional data for the same location as the location indicated by the received location information are already recorded in the first database 24.

[0027] If the weather information and three-dimensional data based on the received image data are not recorded in the first database 24, the prediction unit 22 records the received weather information and three-dimensional data based on the received image data in the first database 24 as weather information and three-dimensional data for the location indicated by the received location information.

[0028] On the other hand, if it is recorded in the first database 24, the prediction unit 22 compares the received image data with the three-dimensional data of the same position recorded in the first database 24 to determine whether or not the two match. In this case, the prediction unit 22 determines that the two match if the surrounding ground structures represented by both are the same.

[0029] If the two match, the prediction unit 22 does not update the first database 24. On the other hand, if the two do not match, the prediction unit 22 updates the weather information and three-dimensional data for the same position recorded in the first database 24 to three-dimensional data based on the received weather information and the received image data. At this time, the prediction unit 22 may update the weather information only when the following condition is satisfied. That is, the prediction unit 22 recalculates the wind direction and wind speed based on the updated three-dimensional data and topographical data. Then, the prediction unit 22 may update the received weather information only when the condition is satisfied that the recalculated wind direction and wind speed match the wind direction and wind speed included in the received weather information.

[0030] The second database 25 records topographical data. The topographical data recorded in the second database 25 may be, for example, substantially the same topographical data as that provided by the Geospatial Information Authority of Japan. Recording and updating of the second database 25 is performed by the prediction unit 22.

[0031] The prediction unit 22 predicts the wind conditions at the location based on the meteorological information and three-dimensional data for the location represented by the location information recorded in the first database 24 and the topographical data for the location recorded in the second database 25.

[0032] Furthermore, the prediction unit 22 generates flight path information based on the wind conditions predicted above. The transmission unit 23 wirelessly transmits the flight path information generated by the prediction unit 22 to the drone 30.

[0033] In this embodiment, the prediction unit 22 accepts input of the current location and destination of the drone 30. The prediction unit 22 then predicts wind conditions in a geographical range from the current location of the drone 30 to the destination, calculates the flight path (flight route and altitude) of the drone 30 based on the predicted wind conditions, and generates flight path information representing the calculated flight path. Therefore, the drone 30 flies according to the flight path represented by the flight path information received from the aircraft control server 20 (transmission unit 23).

[0034] Next, an example of a schematic process flow of the flying object control system 1 according to this embodiment will be described with reference to FIG.

[0035] 4, while the automobile 10 is stopped, the measuring device 11 is started (step S101). Then, the started measuring device 11 measures the wind direction and wind speed (step S102), takes an image of the surroundings of the measuring device 11 (step S103), and obtains position information indicating the position of the measuring device 11 when the above measurements and images were taken (step S104). Note that steps S102 to S104 are not limited to being performed in this order, and may be performed in any order.

[0036] Then, the measuring device 11 wirelessly transmits to the aircraft control server 20 (step S105) weather information including the wind direction and wind speed measured in step S102, image data of the surroundings of the measuring device 11 photographed in step S103, and location information obtained in step S104.

[0037] Thereafter, when the measuring device 11 receives an instruction to perform remeasurement from the aircraft control server 20 in step S204, it executes steps S102 to S105 again. However, if the automobile 10 starts traveling before receiving the instruction to perform remeasurement, the measuring device 11 is stopped, and therefore it is not possible to execute steps S102 to S105 again.

[0038] In the aircraft control server 20, the weather information, image data, and position information transmitted by the measuring device 11 in step S105 are received by the receiving unit 21. In the following, it is assumed that the weather information and three-dimensional data for the same position as the position indicated by the received position information are already recorded in the first database 24.

[0039] Next, the prediction unit 22 determines whether or not the received image data matches the three-dimensional data of the same position recorded in the first database 24 (step S201). If the two match (Yes in step S201), the prediction unit 22 proceeds to the process of step S206 without updating the first database 24.

[0040] In step S201, if the two do not match (No in step S201), the prediction unit 22 updates the three-dimensional data for the same position recorded in the first database 24 to three-dimensional data based on the received image data (step S202).

[0041] Next, the prediction unit 22 recalculates the wind direction and wind speed based on the updated three-dimensional data of the same position recorded in the first database 24 and the topographical data of the same position recorded in the second database 25 (step S203).

[0042] Next, the prediction unit 22 judges whether the wind direction and wind speed recalculated in step S203 match the actual measured values ​​of the wind direction and wind speed included in the received weather information (step S204). If they do not match (No in step S204), the prediction unit 22 sends an instruction to the measurement device 11 to perform remeasurement via the transmission unit 23, and returns to the process of step S102.

[0043] In step S204, if the two match (Yes in step S204), the prediction unit 22 updates the weather information for the same position recorded in the first database 24 to the received weather information (step S205).

[0044] Thereafter, when the current location and destination of the drone 30 are input (step S206), the prediction unit 22 predicts wind conditions for the geographical range from the current location to the destination based on the weather information and three-dimensional data recorded in the first database 24 and the topographical data recorded in the second database 25, and calculates the flight path (flight route and altitude) of the drone 30 based on the predicted wind conditions (step S207).

[0045] Next, the prediction unit 22 generates flight path information representing the flight path calculated in step S207, and the transmission unit 23 wirelessly transmits the flight path information to the drone 30 (step S208).

[0046] Thereafter, the drone 30 flies according to the flight route indicated by the flight route information received from the aircraft control server 20 (transmitter 23) (step S301).

[0047] Here, an example of the flight path of the drone 30 calculated by the prediction unit 22 according to the present embodiment will be described. For comparison, an example of the flight path of the drone 30 calculated by a related technique will also be described.

[0048] First, with reference to FIG. 5, an example of a flight path P1 of a drone 30 calculated by the related art will be described. In the example of Fig. 5, wind from buildings is blowing at low altitude where the drone 30 flies. However, in the related technology, the wind direction and wind speed at low altitude are unknown, and the latest state of ground structures is also unknown. Therefore, the flight path P1 calculated by the related technology is a flight path with poor power consumption, in which the drone 30 flies against the wind from buildings.

[0049] Next, an example of a flight path P2 of the drone 30 calculated by the prediction unit 22 according to this embodiment will be described with reference to FIG. In the example of FIG. 6, a wind behind buildings is blowing at low altitude where the drone 30 flies. However, in this embodiment, the prediction unit 22 calculates the flight path P2 of the drone 30 using meteorological information including wind direction and wind speed measured on-site, and three-dimensional data of ground structures based on image data photographed on-site. Therefore, the flight path P2 is a flight path that predicts the wind behind buildings, that is, a flight path that uses the wind behind buildings as a tailwind. As a result, the flight path P2 is an appropriate flight path from the viewpoint of electricity consumption as well.

[0050] As described above, according to this embodiment, the measuring device 11 installed in the automobile 10 transmits, while the automobile 10 is stopped, meteorological information including the measured wind direction and wind speed, the captured image data of the surroundings, and the acquired position information to the aircraft control server 20. For each position represented by the position information, the aircraft control server 20 records the meteorological information for that position and three-dimensional data of the ground structure based on the image data for that position in the first database 24, predicts the wind conditions for that position based on the meteorological information and three-dimensional data for the position represented by the position information recorded in the first database 24 and the topographical data for that position recorded in the second database 25, and transmits flight path information based on the predicted wind conditions to the drone 30.

[0051] In this way, the aircraft control server 20 predicts wind conditions using meteorological information including wind direction and wind speed measured on-site by the measuring device 11, and three-dimensional data of the ground structure based on image data photographed on-site by the measuring device 11. This makes it possible to provide flight path information to the drone 30 based on local wind predictions that reflect the latest state of the ground structure. As a result, it becomes possible to set the flight path of the drone 30 by reflecting the latest state of the ground structure.

[0052] The aircraft control server 20 may predict wind conditions in a geographical range from the current location of the drone 30 to the destination, calculate a flight path for the drone 30 based on the predicted wind conditions, and generate flight path information representing the calculated flight path. This allows the drone 30 to be provided with an optimal flight path.

[0053] Furthermore, the aircraft control server 20 may compare the image data received from the measuring device 11 with the three-dimensional data of the same position recorded in the first database 24, and if the two are different, update the three-dimensional data of the same position and meteorological information recorded in the first database 24. This allows flight path information to be generated based on the latest first database 24 at all times.

[0054] <Hardware configuration of the flying object control server according to the embodiment> Next, with reference to FIG. 7, an example of the hardware configuration of a computer 200 capable of realizing the aircraft control server 20 according to this embodiment will be described. As shown in FIG. 7, a computer 200 includes a processor 201 and a memory 202 .

[0055] The processor 201 may be, for example, a microprocessor, a micro processing unit (MPU), or a central processing unit (CPU). The processor 201 may include multiple processors.

[0056] The memory 202 is configured by a combination of volatile memory and non-volatile memory. The memory 202 may include storage located away from the processor 201. In this case, the processor 201 may access the memory 202 via an I (Input) / O (Output) interface (not shown).

[0057] A program is stored in the memory 202. When the program is loaded into a computer, the program includes a set of instructions (or software code) for causing the computer to perform one or more functions of the aircraft control server 20 described in this embodiment. The receiving unit 21, the predicting unit 22, and the transmitting unit 23 provided in the aircraft control server 20 may be realized by the processor 201 reading and executing the program stored in the memory 202. In addition, the first database 24 and the second database 25 provided in the aircraft control server 20 may be realized by the memory 202.

[0058] The above-mentioned programs may also be stored on non-transitory computer-readable media or tangible storage media. By way of example and not limitation, computer-readable media or tangible storage media include random-access memory (RAM), read-only memory (ROM), flash memory, solid-state drive (SSD) or other memory technology, CD-ROM, digital versatile disc (DVD), Blu-ray® disk or other optical disk storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage device. The programs may also be transmitted on a transitory computer-readable medium or communication medium. By way of example and not limitation, transitory computer-readable medium or communication medium includes electrical, optical, acoustic or other form of propagated signal.

[0059] <Other embodiments> The present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the spirit and scope of the present invention.

[0060] For example, in the above-described embodiment, the aircraft control server 20 (prediction unit 22) calculates the flight path of the drone 30 and generates flight path information representing the calculated flight path, but the flight path information is not limited to this.

[0061] For example, the aircraft control server 20 (prediction unit 22) may predict wind conditions in a geographical range from the current location of the drone 30 to the destination, and generate flight path information representing the predicted wind conditions. Alternatively, the aircraft control server 20 (prediction unit 22) may predict wind conditions in a geographical range from the current location of the drone 30 to the destination, identify a danger area where flight of the drone 30 is dangerous based on the predicted wind conditions, and generate flight path information representing the identified danger area. According to these, the drone 30 itself can determine the flight path based on the flight path information.

[0062] In the above-described embodiment, the measuring device 11 is provided in the automobile 10. The automobile 10 is equipped with an on-board camera and a car navigation system, and by using these, the measuring device 11 can obtain surrounding image data and position information. Furthermore, the power for driving the measuring device 11 can be easily secured by the supply from the automobile 10. Therefore, the measuring device 11 can be realized by providing only an anemometer. The above is the reason for providing the measuring device 11 in the automobile 10. However, as long as the measuring device 11 itself is equipped with an anemometer, a camera, a GPS device, and the like, the measuring device 11 does not need to be provided in the automobile 10, and may be provided in another moving body other than the automobile 10 that is driven by electricity from the viewpoint of securing power. Alternatively, the measuring device 11 may be provided in a building that generates building winds, or in a residential house.

[0063] In addition, in the above-described embodiment, it is assumed that the present invention is applied to a small drone 30. This is because small drones are most susceptible to the effects of wind direction and wind speed. However, it is considered that large drones and flying cars carrying personnel are also affected by wind to some extent. Therefore, the present invention is applicable not only to small drones but also to all flying objects that fly at low altitudes. [Explanation of symbols]

[0064] 1: Aircraft control system, 10: Automobile, 11: Measuring device, 20: Aircraft control server, 21: Receiving unit, 22: Prediction unit, 23: Transmitting unit, 24: First database, 25: Second database, 30: Drone, 200: Computer, 201: Processor, 202: Memory

Claims

1. a measuring device that measures wind direction and wind speed, photographs the surroundings of the measuring device, and acquires position information that indicates the position of the measuring device when the measurements and photographs were taken; A low-altitude flying object, An aircraft control server for controlling the aircraft; The flying object control server, a receiving unit that receives from the measuring device weather information including wind direction and wind speed measured by the measuring device, image data of the surroundings of the measuring device photographed by the measuring device, and the location information acquired by the measuring device; a first database that records, for each position represented by the position information, the weather information for that position and three-dimensional data of a ground structure based on the image data for that position; a second database for recording topographical data; a prediction unit that predicts wind conditions at a position represented by the position information, based on the meteorological information and the three-dimensional data of the position represented by the position information recorded in the first database and the topographical data of the position recorded in the second database; A transmission unit that transmits flight path information based on the wind conditions predicted by the prediction unit to the flying object, The prediction unit predicts wind conditions in a geographical range from a current location of the aircraft to a destination, and generates the flight path information representing the predicted wind conditions. Aircraft control system.

2. the prediction unit compares the image data received from the measuring device with the three-dimensional data of the same position recorded in the first database, and if the two are different, updates the three-dimensional data of the same position and the weather information recorded in the first database. The air vehicle control system of claim 1 .

3. The measuring device is provided on a moving body.

3. The aircraft control system according to claim 1 or 2.

4. The measuring device measures wind direction and wind speed while the moving object is stopped, and takes an image of the surroundings of the measuring device. The air vehicle control system of claim 3 .

5. An aircraft control server for controlling an aircraft flying at low altitude, a receiving unit that receives from the measuring device weather information including wind direction and wind speed measured by the measuring device, image data of the surroundings of the measuring device photographed by the measuring device, and location information obtained by the measuring device and indicating the location of the measuring device when the measurement and the photographing were performed; a first database that records, for each position represented by the position information, the weather information for that position and three-dimensional data of a ground structure based on the image data for that position; a second database for recording topographical data; a prediction unit that predicts wind conditions at a position represented by the position information, based on the meteorological information and the three-dimensional data of the position represented by the position information recorded in the first database and the topographical data of the position recorded in the second database; A transmission unit that transmits flight path information based on the wind conditions predicted by the prediction unit to the flying object, The prediction unit predicts wind conditions in a geographical range from a current location of the aircraft to a destination, and generates the flight path information representing the predicted wind conditions. Aircraft control server.

6. A method for controlling an aircraft that flies at low altitude, the method comprising: a receiving step of receiving from a measuring device meteorological information including wind direction and wind speed measured by the measuring device, image data of the surroundings of the measuring device photographed by the measuring device, and location information obtained by the measuring device and indicating the location of the measuring device when the measurement and the photographing were performed; a first recording step of recording, for each position represented by the position information, the weather information for that position and three-dimensional data of a ground structure based on the image data for that position in a first database; a second recording step of recording the topographical data in a second database; a prediction step of predicting wind conditions at a position represented by the position information, based on the meteorological information and the three-dimensional data of the position represented by the position information recorded in the first database and the topographical data of the position recorded in the second database; a transmission step of transmitting flight path information based on the wind conditions predicted by the prediction step to the flying object, In the prediction step, wind conditions in a geographical range from a current location of the aircraft to a destination are predicted, and the flight path information representing the predicted wind conditions is generated. A method for controlling an aircraft.

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