Unmanned aircraft system, control device and control method

An unmanned aircraft system comprising:

• an unmanned aircraft including an altimeter configured to measure an altitude of the unmanned aircraft, and a hoisting mechanism configured to feed out and hoist a linear member, wherein the hoisting mechanism includes a measurement unit configured to measure a feed out length of the linear member;
• at least one memory configured to store program code;
• and
• at least one processor configured to access the program code and operate as instructed by the program code, the program code including:
• flight control code configured to cause at least one of the at least one processor to cause the unmanned aircraft to take off in a state in which a package anchored to the linear member is on a ground surface;
• and
• hoisting control code configured to cause at least one of the at least one processor to cause the linear member to be hoisted by the hoisting mechanism, after the unmanned aircraft has taken off, based on a hoisting condition being satisfied, wherein the hoisting condition corresponds to a state enabling hoisting of the linear member,
• wherein the unmanned aircraft system further comprises a detector configured to detect positional relationship information regarding a positional relationship between the unmanned aircraft and the package based on the feed out length and the altitude,
• wherein the program code further includes:
• positional relationship calculation code configured to cause at least one of the at least one processor to calculate the positional relationship between the unmanned aircraft and the package based on the positional relationship information, and
• wherein the hoisting condition is satisfied where the positional relationship corresponds to the state enabling hoisting of the linear member.

An unmanned aircraft system comprising:

• an unmanned aircraft including a hoisting mechanism configured to feed out and hoist a linear member;
• at least one memory configured to store program code;
• and
• at least one processor configured to access the program code and operate as instructed by the program code, the program code including:
• flight control code configured to cause at least one of the at least one processor to cause the unmanned aircraft to take off in a state in which a package anchored to the linear member is on a ground surface;
• and
• hoisting control code configured to cause at least one of the at least one processor to release the linear member to be drawable out from the hoisting mechanism after the unmanned aircraft takes off until a hoisting condition is satisfied, and to cause the linear member to be hoisted by the hoisting mechanism, after the unmanned aircraft has taken off based on the hoisting condition being satisfied, wherein the hoisting condition corresponds to a state enabling hoisting of the near member,
• wherein the unmanned aircraft system further comprises a detector configured to detect positional relationship information regarding a positional relationship between the unmanned aircraft and the package,
• wherein the program code further includes:
• positional relationship calculation code configured to cause at least one of the at least one processor to calculate the positional relationship between the unmanned aircraft and the package based on the positional relationship information,
• wherein the hoisting condition is satisfied where the positional relationship corresponds to the state enabling hoisting of the linear member, and
• wherein the flight control code is further configured to cause at least one of the at least one processor to control flight of the unmanned aircraft based on the positional relationship after the unmanned aircraft takes off until the hoisting condition is satisfied.

A control device for an unmanned aircraft, the control device comprising:

• at least one memory configured to store program code;
• and
• at least one processor configured to access the program code and operate as instructed by the program code, the program code including:
• flight control code configured to cause at least one of the at least one processor to cause the unmanned aircraft to take off in a state in which a package anchored to a linear member of the unmanned aircraft is arranged on a ground surface;
• and
• hoisting control code configured to cause at least one of the at least one processor to cause the linear member to be fed out by a hoisting mechanism of the unmanned aircraft based on an altitude measured by an altimeter of the unmanned aircraft, and to cause the linear member to be hoisted by the hoisting mechanism after the unmanned aircraft has taken off based on a hoisting condition being satisfied, wherein the hoisting condition corresponds to a state enabling hoisting of the linear member.

A method of controlling an unmanned aircraft, the method comprising:

• causing the unmanned aircraft to take off in a state in which a package anchored to a linear member is on a ground surface;
• release the linear member to be drawable out from a hoisting mechanism after the unmanned aircraft takes off until a hoisting condition is satisfied;
• and
• hoisting the linear member by the hoisting mechanism, after the unmanned aircraft has taken off, based on a hoisting condition being satisfied,
• wherein the hoisting condition corresponds to a state enabling hoisting of the linear member.