JP2019006187A - Float drop system, float drop device and base station device - Google Patents

Abstract

To provide a float dropping system capable of dropping a float into a river at an arbitrary timing.
An unmanned aerial vehicle is a device used for aviation, and includes an aviation unit that flies by remote control or automatic piloting, and a mounting unit that detachably mounts a float. The mounting unit 22 drops the float based on the drop command. The base station device 3 generates flight plan data including the flight route of the unmanned aerial vehicle 2, the location where the float is dropped, and the type of float suitable for the drop location based on the cross-sectional shape data and the water level data of the observation location. The flight plan data generation unit 32 is provided. The aviation unit 21 flies by a flight route based on the flight plan data generated by the flight plan data generation unit 32.
[Selection] Figure 2

Description

  The present disclosure relates to a floating element dropping system and a floating element dropping apparatus that drop a floating element in order to observe a flow rate of a river, and a base station apparatus that causes an unmanned aircraft to fly.

  For river management and disaster prevention monitoring, it is necessary to regularly grasp the flow rate at major river points. Specifically, observation stations for observing water level and discharge are set up at major points in the river, and the water level and discharge are regularly observed at the observation station.

  In the flow rate measurement method using floats, the river width is divided into a plurality of points, the measurement points are determined, the floats are dropped at the measurement points, and the flow velocity of each float is measured at a certain distance (for example, 100 m). The flow rate is obtained from the flow velocity calculated based on the above. The measurement point is also referred to as a base point.

  By the way, in the flow rate observation, workers drop floats directly into the river. The drop location is set near the water surface such as the pier and riverbank. Here, at the time of water increase due to rain or the like, it may be difficult to observe the flow rate because it is not possible to drop the float at the drop location. In addition, since the worker drops the float at each base point, it is necessary to transport the float to the drop point, and the work load is large.

  Patent Document 1 discloses a float dropping device for easily performing a multi-point floating drop operation at the time of measuring a high amount of water in a river easily and efficiently in a short time. Specifically, the float drop device supports a suspended vehicle body so that it can reciprocate on a guide wire stretched between opposite banks of the river, and the float dropper is attached to this vehicle body and dropped at a specific position in the river width direction. Means are provided.

Japanese Unexamined Patent Publication No. 7-89485

  However, according to the float attachment / detachment means disclosed in Patent Document 1, a guide wire has to be stretched between the opposite banks of the river, and personnel for stretching the guide wire are required. When the cost is increased or when the guide wire is permanently installed, periodic maintenance is also required, and there is a problem that the management cost is increased. In addition, there is a problem that it becomes difficult to observe the flow rate when there is no space to stretch the guide wire between the opposite banks of the river.

  The present disclosure provides a float drop system and a float drop apparatus that can drop a float into a river at an arbitrary timing without installing a device such as a guide wire, and a base station apparatus that allows an unmanned aircraft to fly. Objective.

  In order to achieve the above object, a float dropping system according to an aspect of the present disclosure is a float drop system including an unmanned aerial vehicle and a base station apparatus that performs communication between the unmanned aircraft. The unmanned aerial vehicle is a device used for aviation, and includes an aviation unit that flies by remote control or automatic piloting, and a mounting unit that detachably mounts a float, the mounting unit receiving a drop command signal Based on that, drop the float. The base station device generates flight plan data including a flight route of the unmanned aircraft, a float drop location, and a float type suitable for the drop location based on the crossing shape data and water level data of the observation location A flight plan data generation unit configured to perform flight on a flight route based on the flight plan data generated by the flight plan data generation unit.

  The float dropping device according to an aspect of the present disclosure is an apparatus for use in aviation, and is an aeronautical part that flies by remote control or automatic piloting, a mounting part that detachably mounts a float, and transverse shape data of an observation place And a flight plan data generation unit that generates flight plan data including a flight route of the aviation unit, a place where the float is dropped, and a type of float suitable for the drop location based on the water level data, The mounting unit drops the float based on the drop command signal, and the aviation unit flies based on the flight route based on the flight plan data.

  A base station apparatus according to an aspect of the present disclosure includes a flight including a flight route of an unmanned aerial vehicle, a place where a float is dropped, and a kind of float suitable for the drop place based on cross-sectional shape data and water level data of an observation place A flight plan data generation unit for generating plan data is provided, and the unmanned aircraft is caused to fly by a flight route based on the flight plan data generated by the flight plan data generation unit.

  According to the present disclosure, the float can be dropped into the river at an arbitrary timing.

It is a figure with which it uses for description about the kind of float. It is a figure which shows the structure of a float dropping system. It is a figure with which it uses for description about a float table. It is a figure where it uses for description about a flow velocity side line. It is a figure where it uses for description about a flight route. It is a figure where it uses for description about correction of a flight route. It is a figure where it uses for description about a drop command signal. It is a figure which shows the structure of an external device and a mounting part. It is a figure which shows the structure of a float dropping system. It is a timing chart with which it uses for description about the procedure in which a float is dropped based on the drop command signal produced | generated by the drop command signal production | generation part. It is a figure which shows the structure of the float drop device concerning a modification (1). It is a figure which shows the structure of the base station apparatus concerning a modification (2), and an unmanned aircraft.

  Hereinafter, a floating dropping system, a floating dropping apparatus, and a base station apparatus according to an embodiment of the present invention will be described with reference to the drawings. In all the drawings for explaining the embodiments, common constituent elements are denoted by the same reference numerals, and repeated explanation is omitted.

  In order to periodically grasp the flow rate at major points in the river, the floater dropping system 1 divides the river width into a plurality of points at the major points in the river and determines the floating points at arbitrary timings. It is a system that drops. A float is a rod-like object that is dropped into a river in order to measure the flow velocity during float observation. Generally, the float body is made of paper and has a cylindrical shape, and a bottom is provided with a weight for adjusting the water depth. Five types of floats are used properly according to the water depth at the time of measurement. A float number is assigned to each float, and as shown in FIG. 1, a water depth (m), flooding (m), and a correction coefficient are set for each float number. For example, the float number “1” has a water depth of 0.7 m or less, flooded surface float (0.1 m), and a correction coefficient of 0.85. In the following, float number “1” refers to a float with surface float (0.1 m), float number “2” refers to a float with flood water of 0.5 m, and float number “3” , Suisui refers to a float with 1.0 m, float number “4” refers to a float with 2.0 m, float number “5” refers to a float with 4.0 m.

  The flow velocity of a fixed distance (for example, 100 m) of the float dropped by the system is measured, and the flow velocity is calculated based on the flow velocity. Also, the flow rate is calculated by multiplying the flow velocity by the cross-sectional area of the river. Below, the concrete structure and operation | movement of the float dropping system 1 are demonstrated.

<About the structure of the float drop system>
As shown in FIG. 2, the float dropping system 1 includes an unmanned aerial vehicle 2 and a base station device 3 that performs communication between the unmanned aircraft 2.

  The unmanned aerial vehicle 2 includes an aviation unit 21, a mounting unit 22, a geomagnetic sensor 23, a position measurement unit 24, a communication unit 25, and a control unit 26. The aviation unit 21 includes elements other than those described above. For example, the aviation unit 21 includes an aerial camera unit and a battery.

  The aviation unit 21 is a device used for aviation, and flies by remote control or autopilot. Specifically, the aviation unit 21 is a device that can be used for aviation, such as an airplane, a rotary wing aircraft, a glider, an airship, and the like, and is a device that flies by remote control or autopilot under the control of the control unit 26. It is. The aviation section 21 is generally referred to as an industrial drone, multicopter or multirotor helicopter (MRH). Autopilot refers to automatically maneuvering based on a flight route based on flight plan data. The aviation unit 21 can perform vertical takeoff and landing, horizontal flight, air suspension (hereinafter referred to as “hovering”), and the like under the control of the control unit 26. The control unit 26 performs attitude control of the aviation unit 21 during flight or hovering based on the data of the gyro sensor. Further, the control unit 26 controls the operations of the air unit 21 during takeoff, flight, and landing based on a remote control signal received from the outside via the communication unit 25. Further, the control unit 26 can autonomously control the operations of the aviation unit 21 during takeoff, flight, and landing based on an automatic flight (autopilot) program.

  The mounting unit 22 mounts one or more floats so as to be detachable. For example, the mounting part 22 can mount the float within a range not exceeding a predetermined maximum load (for example, 5.0 kg). In the present embodiment, the mounting portion 22 can mount a maximum of four floats, but may mount five or more. The mounting unit 22 drops the float based on the drop command signal.

  The geomagnetic sensor 23 is a so-called electronic compass, and is constituted by a 2-axis type or 3-axis type magnetic sensor, and calculates the azimuth by measuring geomagnetism.

  The position measurement unit 24 is a so-called GPS (Global Positioning System) device, and calculates latitude, longitude, altitude, and the like using radio waves transmitted from an artificial satellite.

  The communication unit 25 transmits the azimuth information calculated by the geomagnetic sensor 23 and the latitude / longitude / altitude information calculated by the position measurement unit 24 to the base station apparatus 3 at a predetermined timing.

  The base station device 3 calculates the flight route of the unmanned aircraft 2, the nose direction, the altitude and the attitude at the time of flight based on each information transmitted from the communication unit 25, and hovers for several seconds at any place. It can be calculated. Information such as the flight route of the unmanned aircraft 2 can be referred to when creating a flight route for the next flow rate observation, or can be used for reporting. The information such as the flight route of the unmanned aircraft 2 may be created on the unmanned aircraft 2 side and transmitted to the base station device 3.

  The base station device 3 includes a reception unit 31, a flight plan data generation unit 32, and a transmission unit 33. The receiving unit 31 receives information transmitted from the communication unit 25.

  The flight plan data generation unit 32 includes a flight including the flight route of the unmanned aerial vehicle 2, the location where the unmanned aircraft 2 is dropped, and the type of float suitable for the water depth of the dropped location based on the cross-sectional shape data and the water level data of the observation location. Generate plan data.

  The transmission unit 33 transmits the flight route included in the flight plan data generated by the flight plan data generation unit 32. Note that the flight plan data generation unit 32 and the transmission unit 33 may be configured to be provided not in the base station device 3 but in other devices (for example, a PC or the like).

<Flight plan data generation procedure>
Here, a procedure for generating flight plan data will be described. The cross-sectional shape data is generated by cross-sectional surveying performed by a trader (such as a surveying company) that has received an order for flow rate observation work ordered by each river office or local government. The flight plan data generation unit 32 acquires the cross-sectional shape data of the target observation location from the cross-sectional shape data of the observation points of the main rivers nationwide generated in this way. Note that the above-described method for acquiring the cross-sectional shape data is an example, and is not limited thereto.

  The water level data is displayed at the water level observatory. For example, an employee of a surveying company enters this water level data in a field book. Note that the field book may be realized by software for a personal computer instead of paper. The flight plan data generation unit 32 acquires the water level data of the target observation location from the water level data of the observation points of major rivers nationwide entered in the field book. In addition, the acquisition method of the water level data mentioned above is an example, and is not restricted to this.

  The flight plan data generation unit 32 creates a float table based on the acquired cross-sectional shape data and water level data of the target observation location. The float table is a cross-sectional view showing the relationship between the water depth and the type of float at the drop location.

  For example, as shown in FIG. 3, the float table has a water surface width (about 150 m in the example shown in FIG. 3), a distance from the water surface A to the water bottom, and a predetermined interval (in FIG. 3). In the example shown, places where the floats are dropped at intervals of 10 m (a1 to a15 in the example shown in FIG. 3) and the like are shown. The float table may be color-coded so that the degree of water depth can be seen at a glance.

  In the present disclosure, flow velocity observation corresponds to standard time and emergency. An emergency is when the flow velocity is urgently measured during a flood. At the standard time, the ratio between the water surface width and the float flow velocity side line interval is determined according to FIG. For example, when the water surface width is less than 20 m, the number of floats on the flow velocity side is five. In an emergency, the ratio between the water surface width and the float flow velocity side line interval is determined according to FIG. For example, when the water surface width is 50 m or less, the number of floats on the flow velocity side is three.

  The flight plan data generation unit 32 specifies the type of float to be dropped based on the water depth at each drop location. In the example illustrated in FIG. 3, the flight plan data generation unit 32 designates the float with the float number “1” in a1 to a4, designates the float with the float number “2” in a5 to a7, and a8 ~ A9 specifies the float with the float number "3", a10 to a11 designates the float with the float number "4", a12 designates the float with the float number "3", and a13 to A float with a float number “2” is designated at each location a14, and a float with a float number “1” is designated at a15. In this way, the type of float to be dropped is specified by the water depth on the flow velocity side line.

  Next, the flight route of the unmanned aerial vehicle 2 will be described. In the flight route, for example, the route is included until the unmanned aircraft 2 takes off from the takeoff / landing point, moves in space, and then reaches the takeoff / landing point. In the present embodiment, a maximum of four floats can be attached to the attachment portion 22, but there may be four or less depending on the weight of the float. That is, the distance of one flight route is determined based on the number of floats attached to the attachment part 22 of the unmanned aircraft 2.

  The weight of the float varies depending on the type (length). The flight plan data generation unit 32 holds the weight for each type of float, determines the number of floats that can be mounted on the mounting unit 22 based on the type of float and the maximum load, and sets the determined number of floats. Based on this, a flight route is generated.

  The aviation unit 21 flies by a flight route based on the flight plan data generated by the flight plan data generation unit 32.

  In this way, the float drop system 1 can cause the unmanned aircraft 2 to fly according to the flight route based on the flight plan data, and drop the float attached to the mounting portion 22 according to the drop command signal. The float can be dropped without requiring a worker to drop the float. In particular, when the water increases due to rainfall or the like, the float can be safely dropped into the river using the float drop system 1 and the flow rate can be safely observed.

<About flight routes>
The flight plan data generation unit 32 calculates the number of floats that can be mounted on the mounting unit 22 based on the type of float suitable for the drop location, and includes a flight plan including the flight route of the unmanned aircraft 2 according to the number of floats. It may be configured to generate data.

  The flight plan data generation unit 32 creates, for example, three pieces of flight plan data. That is, a maximum of 12 floats can be dropped with three flight plan data. When there is a failure in the flow velocity observation, the fourth flight plan data is generated so that the failed float is dropped again. The flight plan data is not limited to three.

  For example, as the first flight plan data, the flight plan data generation unit 32 drops the float with the float number “1” on the first side line a1, drops the float with the float number “1” on the second side line a2, Flight plan data is generated such that the float with the float number “2” is dropped on the third line a3 and the float with the float number “3” is dropped on the fourth line a4. In addition, the flight plan data generation unit 32 drops the float with the float number “3” on the fifth side line a5 and the float with the float number “2” on the sixth side line a6 as the second flight plan data, Flight plan data is generated such that the float with the float number “3” is dropped on the seventh side line a7 and the float with the float number “3” is dropped on the eighth side line a8. The flight plan data generation unit 32 drops the float with the float number “4” on the 9th line a9 as the third flight plan data, and drops the float with the float number “3” on the 10th line a10. Flight plan data is generated such that the float with the float number “2” is dropped on the eleventh side line a11 and the float with the float number “1” is dropped on the twelfth side line a12.

  As shown in FIGS. 5A, 5B, and 5C, the flight route f1 based on the first flight plan data, the flight route f2 based on the second flight plan data, and the third flight. The unmanned aircraft 2 is caused to fly from the takeoff and landing point X by the flight route f3 based on the plan data, the float is dropped at a predetermined location, and the flow velocity is observed for each float.

  Here, when the flow velocity observation fails on the third side line and the ninth side line, the flight plan data generation unit 32 displays the fourth flight plan data on the third side line as shown in FIG. The float with the float number “2” is dropped, the float with the float number “4” is dropped on the 9th line, the float with the float number “2” is dropped on the 13th line, and the float number “3” is dropped on the 14th line. Generate flight plan data that will drop the float.

  In addition, if the floater is dropped and the flow velocity observation fails, the reason for the failure must be clearly stated in the field book. Possible reasons for failure include “the float does not float on the surface of the water”, “the float has caught”, “the float has turned to the right (left)”, and “lost the float”.

  By the way, it cannot be judged whether the float is bent in the left-right direction unless it is visually observed in the river longitudinal direction from the point where the float is dropped. Therefore, the present disclosure may be configured such that a camera unit is mounted on the unmanned aerial vehicle 2 and the camera unit confirms that the dropped float is bent in the left-right direction.

  Further, the flight plan data generation unit 32 may be configured to generate flight plan data including the time for hovering at the place where the float is dropped. When the unmanned aerial vehicle 2 is hovering, the mounting unit 22 drops the float on the river in response to the drop command signal. The hovering time is set to the time required for dropping the float and observing the flow rate with the dropped float.

<Flight route correction>
Further, the flight plan data generation unit 32 may be configured to generate next flight plan data including the location where the failed float is dropped when the flow observation by the dropped float fails.

  In the flow rate observation by the float, the time required for the dropped float to flow down a certain section distance (for example, the distance between lines of sight) is observed. In other words, when the float floats down the distance of a certain section, it is judged that the observation is successful, and as described above, “the float does not float on the water surface”, “the float is caught”, “the float is to the right (left) If the float does not flow down a certain distance due to “turned” or “lost float”, it can be determined that the observation has failed.

  For example, as shown in FIG. 6A, it is assumed that the flow rate observation by the float dropped in a1, a2, and a4 succeeds, and the flow rate observation by the float dropped in a3 fails.

  In this case, the flight plan data generation unit 32 generates the next flight plan data including a3 which is the location where the failed float is dropped. Specifically, as shown in FIGS. 6B and 6C, the flight plan data generation unit 32 determines the corrected route f2 (a3) from the original flight route f2 (a5 → a6 → a7 → a8). → a5 → a6 → a7)

<Drop command signal (1)>
Next, the float drop command signal will be described. For example, the drop command signal may be transmitted from the external device 4. The external device 4 is a device that can drop the float mounted on the mounting unit 22 by remote control, and includes an operation unit 41 and a transmission unit 42 as shown in FIG.

  The operation unit 41 receives an operation by the operator. The transmission unit 42 outputs a signal (drop command signal) to the outside based on the operation of the operation unit 41. The mounting unit 22 receives the signal output from the external device 4 and drops the corresponding float.

  For example, as shown in FIG. 8, the external device 4 is provided with operation buttons B1 to B4. When any one of the operation buttons B1 to B4 is operated, a signal (drop command signal) indicating the operated operation button. Is output.

  The mounting unit 22 drops the float corresponding to the signal received from the external device 4. For example, when the operation button B1 is operated, the float C1 is dropped, when the operation button B2 is operated, the float C2 is dropped, and when the operation button B3 is operated, the float C3 is dropped and the operation button B4 is operated. Is operated, the float C4 is dropped.

<Drop command signal (2)>
Further, the floating-drop command signal may be output from an element other than the external device 4. For example, the base station device 3 includes a drop command signal generation unit 34 as shown in FIG.

  The drop command signal generation unit 34 generates a drop command signal for dropping the float at the float drop location included in the flight plan data. The transmission unit 33 transmits the drop command signal generated by the drop command signal generation unit 34 to the unmanned aircraft 2. The mounting unit 22 drops the float based on the drop command signal.

  Here, assuming the case where the unmanned aerial vehicle 2 flies based on the flight data f1 shown in FIG. 5A, the procedure for dropping the float will be described with reference to FIG.

  In step ST1, the unmanned aerial vehicle 2 notifies the base station apparatus 3 that it has departed from the takeoff and landing point x and arrived at the first side line a1. The unmanned aerial vehicle 2 may detect that it has arrived at the first line a1 based on the position information measured by the position measurement unit 24.

  In step ST2, the reception unit 31 of the base station apparatus 3 receives information indicating that the unmanned aircraft 2 has arrived at the first side line a1, and notifies the drop command signal generation unit 34 of the information.

  In step ST3, the drop command signal generator 34 of the base station device 3 generates a drop command signal S1 and outputs it via the transmitter 33.

  In step ST4, the mounting unit 22 of the unmanned aerial vehicle 2 drops the float C1 corresponding to the drop command signal S1. It is determined whether the flow rate observation by the dropped float C1 has been successful or has failed, and if it has failed, the failure reason is entered in the field book. Thereafter, the unmanned aerial vehicle 2 moves to the second side line a2.

  In step ST5, the unmanned aerial vehicle 2 notifies the base station apparatus 3 that it has arrived at the second side line a2.

  In step ST6, the receiving unit 31 of the base station apparatus 3 receives information indicating that the unmanned aircraft 2 has arrived at the second side line a2, and notifies the drop command signal generating unit 34 to that effect.

  In step ST <b> 7, the drop command signal generator 34 of the base station device 3 generates a drop command signal S <b> 2 and outputs it via the transmitter 33.

  In step ST8, the mounting part 22 of the unmanned aerial vehicle 2 drops the float C2 corresponding to the drop command signal S2. It is determined whether the flow observation by the dropped float C2 has been successful or has failed, and if it has failed, the failure reason is entered in the field book. Thereafter, the unmanned aerial vehicle 2 moves to the third side line a3.

  In step ST9, the unmanned aerial vehicle 2 notifies the base station apparatus 3 that it has arrived at the third side line a3.

  In step ST10, the receiving unit 31 of the base station apparatus 3 receives information indicating that the unmanned aircraft 2 has arrived at the third side line a3, and notifies the drop command signal generating unit 34 to that effect.

  In step ST <b> 11, the drop command signal generator 34 of the base station device 3 generates a drop command signal S <b> 3 and outputs it via the transmitter 33.

  In step ST12, the mounting unit 22 of the unmanned aerial vehicle 2 drops the float C3 corresponding to the drop command signal S3. It is determined whether the flow rate observation by the dropped float C3 has been successful or has failed, and if it has failed, the failure reason is entered in the field book. Thereafter, the unmanned aerial vehicle 2 moves to the fourth side line a4.

  In step ST13, the unmanned aerial vehicle 2 notifies the base station apparatus 3 that it has arrived at the fourth side line a4.

  In step ST14, the receiving unit 31 of the base station apparatus 3 receives information indicating that the unmanned aircraft 2 has arrived at the fourth side line a4, and notifies the drop command signal generating unit 34 to that effect.

  In step ST15, the drop command signal generator 34 of the base station apparatus 3 generates a drop command signal S4 and outputs it via the transmitter 33.

  In step ST16, the mounting unit 22 of the unmanned aerial vehicle 2 drops the float C4 corresponding to the drop command signal S4. It is determined whether the flow rate observation by the dropped float C4 has been successful or has failed, and if it has failed, the failure reason is entered in the field book. Thereafter, the unmanned aerial vehicle 2 moves toward the takeoff and landing point x in order to mount the float.

  According to this configuration, the float dropping system 1 can drop the float based on the drop command signal output from the base station device 3 without the need for the external device 4. There are benefits that are not necessary.

<Modification (1)>
In the above description, the flight plan data is generated by the flight plan data generation unit 32 of the base station device 3 and the unmanned aircraft 2 flies based on the flight data based on the flight gran data, but this is not limitative. Absent. In addition, below, the same code | symbol is attached | subjected to the component same as the float dropping system 1, and detailed description is abbreviate | omitted.

  As shown in FIG. 11, the float dropping device 5 includes an aviation unit 21, a mounting unit 22, and a flight plan data generation unit 32.

  The aviation unit 21 is a device used for aviation, and flies by remote control or autopilot. The mounting unit 22 mounts the float so as to be detachable.

  The flight plan data generator 32 includes flight plan data including the flight route of the aviation unit 21, the floating place of the float, and the type of float suitable for the dropped place based on the cross-sectional shape data and the water level data of the observation place. Is generated. The aviation unit 21 flies based on the flight route.

  The mounting unit 22 drops the float based on the drop command signal. The drop command signal may be transmitted from the external device 4 or may be generated by the drop command signal generator 34 provided inside.

  According to such a configuration, the float dropping device 5 can generate the flight plan data without using the base station device 3, and can fly based on the flight route included in the generated flight plan data. it can.

<Modification (2)>
Further, as shown in FIG. 12, the base station device 3 may be configured to include a reception unit 31, a flight plan data generation unit 32, and a control unit 35.
The flight plan data generator 32 includes flight plan data including the flight route of the unmanned aerial vehicle 2, the location where the float is dropped, and the type of float suitable for the drop location based on the cross-sectional shape data and the water level data of the observation location. Is generated.
The control unit 35 controls the unmanned aircraft 2 by a flight route based on the flight plan data generated by the flight plan data generation unit 32.

  According to such a configuration, since the base station device 3 controls the unmanned aerial vehicle 2 by remote control based on the flight route, it is possible to use the unmanned aerial vehicle 2 that does not have a function of flying autonomously. The float can be dropped cheaply and safely.

DESCRIPTION OF SYMBOLS 1 Float drop system, 2 Unmanned aircraft, 3 Base station device, 4 External device, 5 Float drop device, 21 Aviation part, 22 Wearing part, 23 Geomagnetic sensor, 24 Position measurement part, 25 Communication part, 26 Control part, 31 Reception Unit, 32 flight plan data generation unit, 33 transmission unit, 34 drop command signal generation unit, 35 control unit

Claims (8)

In a float drop system comprising an unmanned aerial vehicle and a base station device that communicates between the unmanned aerial vehicle,
The unmanned aircraft
Equipment for use in aviation, flying by remote control or autopilot,
A mounting portion for detachably mounting the float,
The mounting part drops the float based on the drop command signal,
The base station device
A flight plan data generation unit that generates flight plan data including a flight route of the unmanned aircraft, a place where the float is dropped, and a type of float suitable for the drop place based on the cross-sectional data and the water level data of the observation place With
The aviation unit is a float dropping system that flies by a flight route based on the flight plan data generated by the flight plan data generation unit.   The flight plan data generation unit calculates the number of floats that can be mounted on the mounting unit based on the type of floats suitable for the drop location, and includes a flight plan including a flight route of the unmanned aircraft according to the number of floats The float dropping system according to claim 1 which generates data.   3. The float drop system according to claim 1, wherein the flight plan data generation unit generates next flight plan data including a place where the failed float is dropped when flow observation by the dropped float fails. 4.   The float plan dropping system according to any one of claims 1 to 3 in which said flight plan data generation part generates flight plan data including time to stop in the air at a place where a float is dropped.   The float drop system according to any one of claims 1 to 4, wherein the drop command signal is transmitted from an external device. The base station device generates a drop command signal generator for dropping a float at a place where the float is included in flight plan data;
A transmission unit that transmits the drop command signal generated by the drop command signal generation unit to the unmanned aircraft,
The float mounting system according to any one of claims 1 to 4, wherein the mounting unit drops a float based on the drop command signal. Equipment for use in aviation, flying by remote control or autopilot,
A mounting part for detachably mounting the float,
A flight plan data generation unit that generates flight plan data including a flight route of the aviation unit, a floating place of the float, and a type of float suitable for the dropped place based on the cross-sectional data and water level data of the observation place And comprising
The mounting part drops the float based on the drop command signal,
The aviation unit is a float dropping device that flies based on a flight route based on the flight plan data. A flight plan data generation unit that generates flight plan data including the flight route of the unmanned aerial vehicle, the location where the float is dropped, and the type of float suitable for the location based on the cross-sectional data and water level data of the observation location Prepared,
A base station apparatus that causes the unmanned aircraft to fly along a flight route based on flight plan data generated by the flight plan data generation unit.

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