Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B64—AIRCRAFT; AVIATION; COSMONAUTICS
  • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
  • B64D43/00—Arrangements or adaptations of instruments
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B64—AIRCRAFT; AVIATION; COSMONAUTICS
  • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
  • B64U10/00—Type of UAV
  • B64U10/10—Rotorcrafts
  • B64U10/13—Flying platforms
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B64—AIRCRAFT; AVIATION; COSMONAUTICS
  • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
  • B64U50/00—Propulsion; Power supply
  • B64U50/10—Propulsion
  • B64U50/11—Propulsion using internal combustion piston engines
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B64—AIRCRAFT; AVIATION; COSMONAUTICS
  • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
  • B64U50/00—Propulsion; Power supply
  • B64U50/30—Supply or distribution of electrical power
  • B64U50/33—Supply or distribution of electrical power generated by combustion engines
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B64—AIRCRAFT; AVIATION; COSMONAUTICS
  • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
  • B64U2101/00—UAVs specially adapted for particular uses or applications
  • B64U2101/40—UAVs specially adapted for particular uses or applications for agriculture or forestry operations

Definitions

• Unmanned aerial vehicles are aircraft that cannot accommodate people due to their structure, but can fly remotely or automatically.
• Rotary-wing unmanned aerial vehicles are unmanned aerial vehicles that obtain lift using propellers that rotate around an axis, i.e. rotors.
• Small unmanned aerial vehicles equipped with multiple rotors are also called “drones,” “multirotors,” or “multicopters,” and are widely used for aerial photography, surveying, logistics, and pesticide spraying.
• the multicopter 10 when the multicopter 10 flies above the work area 72 while performing tasks such as spraying pesticides, fertilizing, and direct sowing seeds using the work machine 200, it is necessary to take into account the decrease in flight time due to the decrease in the remaining amount of fuel in the internal combustion engine 7 and the increase in flight time due to the decrease in the weight of the agricultural materials stored in the work machine 200 and the decrease in the total weight of the multicopter 10.
• This can make the flight plan complicated when planning a flight in advance.
• the multicopter 10 according to this embodiment can fly while updating the flight plan to a more appropriate one as needed depending on the weight of the agricultural materials stored in the work machine 200 and the remaining amount of fuel. Even when the multicopter 10 flies while harvesting or transporting the harvested products using the work machine 200, it can fly while updating the flight plan to a more appropriate one as needed depending on the weight of the harvested products stored in the work machine 200 and the remaining amount of fuel.
• step S10 while the multicopter 10 is flying, the control device 4a acquires information on the rotational speed of the rotor 2 of the multicopter 10.
• Steps S20, S22, and S24 can be performed in the same manner as steps S10, S12, and S14 in FIG. 6.
• the control device 4a may execute multiple steps simultaneously.
• the order of the steps in the flowchart in FIG. 7 may be changed as appropriate.
• the communication I/F 38 is an interface for communicating between the control device 4a and other electronic components or electronic control units (ECUs).
• the communication I/F 38 can perform wired communication conforming to various protocols.
• the communication I/F 38 may perform wireless communication conforming to the Bluetooth (registered trademark) standard and/or the Wi-Fi (registered trademark) standard. Both standards include wireless communication standards that utilize frequencies in the 2.4 GHz band.
• FIG. 10 is a schematic diagram showing an example of the configuration of a system including a multicopter 10.
• Some or all of the functions of the control device 4a may be realized by one or more servers (computers) 500 or terminal devices (including portable and fixed types) 600 connected to the communication device 4c of the multicopter 10 via a communication network N.
• An agricultural machine 700 such as a tractor may be connected to such a communication network N, and communication may be performed between the multicopter 10 and the agricultural machine 700.
• Some of the data used for processing by the control device 4a and control signals for the multicopter 10 may be provided from the agricultural machine 700 to the multicopter 10 via the communication network N.
• An unmanned aerial vehicle having multiple rotors A control device for controlling the flight of the unmanned aerial vehicle is further provided.
• the control device of the unmanned aerial vehicle calculates the weight of the work machine or the amount of change in the weight of the work machine based on the rotational speed of the multiple rotors when the unmanned aerial vehicle is flying with the work machine connected to the aircraft.
• the working machine includes a container for storing agricultural materials
• the control device includes: Calculating an amount of change in weight of the work machine based on the rotation speed; 3.
• the working machine includes a container for storing harvested products
• the control device includes: Calculating an amount of change in weight of the work machine based on the rotation speed; 3.
• the control device includes: Calculating a weight of the work machine based on the rotation speed; An unmanned aerial vehicle described in any one of items 1 to 6, which changes the lower and/or upper limit of the speed of the unmanned aerial vehicle depending on the calculated weight of the work equipment.
• a sensor for detecting a remaining amount of fuel in the internal combustion engine is further provided.
• a plurality of electric motors each driving a first rotor included in the plurality of rotors; a battery for storing a first power; a power generation device driven by the internal combustion engine to generate a second electric power; Further equipped with 12.
• the unmanned aerial vehicle according to any one of items 8 to 11, wherein each of the plurality of electric motors receives at least one of the first electric power and the second electric power.
• a method for controlling an unmanned aerial vehicle having multiple rotors comprising: A control method including calculating the weight of the work machine or the amount of change in the weight of the work machine based on the rotational speed of the multiple rotors when the unmanned aerial vehicle is flying with a work machine connected to the aircraft.
• the unmanned aerial vehicle disclosed herein can be widely used not only for aerial photography, surveying, logistics, and pesticide spraying, but also for ground work related to agricultural work, transporting harvested products and agricultural materials, etc.

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• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Remote Sensing (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)

Priority Applications (2)

Applications Claiming Priority (1)

Publications (1)

Family

ID=91716710

Family Applications (1)

Country Status (2)

Citations (5)

• 2022
  • 2022-12-27 JP JP2024567015A patent/JPWO2024142232A1/ja active Pending
  • 2022-12-27 WO PCT/JP2022/048164 patent/WO2024142232A1/ja not_active Ceased

Patent Citations (5)

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