Unmanned flight equipment and delivery method

1. Unmanned flight equipment comprising:

an aerial vehicle capable of flying in an unmanned manner;

a linear member configured to be suspended from the aerial vehicle and to hold a delivery target at a lower end thereof;

a contact detection unit including:

a linear member contact detection unit configured to detect contact of an external object with the linear member during flight of the aerial vehicle, and

a container contact detection unit configured to detect contact of the external object with the delivery target during flight of the aerial vehicle; and

a separation unit configured to separate the delivery target from the linear member or separate the delivery target and the linear member from the aerial vehicle based on a detection result of the contact detection unit,

wherein the contact detection unit is configured to distinguish between contact with the linear member detected by the linear member contact detection unit and contact with the delivery target detected by the container contact detection unit,

wherein the separation unit is configured to separate the delivery target from the linear member when the container contact detection unit detects contact, and

wherein the separation unit is configured to separate the delivery target and the linear member from the aerial vehicle when the linear member contact detection unit detects contact.

2. The unmanned flight equipment according to claim 1 , wherein

the separation unit includes a selector configured to select a mode of separation between separation only of the delivery target and separation of the linear member together with the delivery target.

3. The unmanned flight equipment according to claim 2 , further comprising:

a contact target discrimination unit configured to discriminate a type of the external object whose contact has been detected by the contact detection unit, wherein

the selector selects the mode of separation in accordance with the type of the external object.

4. The unmanned flight equipment according to claim 1 , wherein

the container contact detection unit detects contact with at least one of a top surface and a side surface of the delivery target.

5. The unmanned flight equipment according to claim 1 , further comprising:

a tension detection unit configured to detect a pull on at least one of the delivery target and the linear member, wherein

the separation unit separates the delivery target or the linear member based at least in part on a detection result of the tension detection unit.

6. The unmanned flight equipment according to claim 1 , further comprising:

a landing detection unit configured to detect landing of the delivery target, wherein

the separation unit separates the delivery target or the linear member based at least in part on a detection result of the landing detection unit.

7. The unmanned flight equipment according to claim 1 , wherein

the delivery target includes a container held at the lower end of the linear member and configured to accommodate therein a cargo.

8. The unmanned flight equipment according to claim 1 , wherein

the linear member contact detection unit includes a linear member contact detection sensor configured to detect contact with at least a lower region of the linear member.

9. The unmanned flight equipment according to claim 8 , wherein

the linear member contact detection sensor is a capacitance sensor configured to detect a change in capacitance.

10. The unmanned flight equipment according to claim 8 , wherein

the linear member contact detection sensor includes a carbon microcoil.

11. The unmanned flight equipment according to claim 8 , wherein

the linear member contact detection sensor is disposed over an outer periphery of the lower region of the linear member.

12. The unmanned flight equipment according to claim 8 , wherein

the linear member contact detection sensor is configured to dismiss contact below a preset detection threshold; and

the linear member contact detection sensor is configured to dismiss contact for a period below a preset time threshold.

13. A method for delivering a delivery target by an aerial vehicle capable of flying in an unmanned manner, the method comprising:

causing a linear member that is to be suspended from the aerial vehicle to hold the delivery target at a lower end of the linear member;

detecting contact of an external object with the delivery target or contact with the linear member during flight of the aerial vehicle;

distinguishing between contact with the linear member and contact with the delivery target; and

separating the delivery target or the linear member from the aerial vehicle based on a detection result,

wherein the delivery target is separated from the linear member when contact with the delivery target is detected, and

wherein the delivery target and the linear member are separated from the aerial vehicle when contact with the linear member is detected.