Drone, control method thereof, and program
AssigneeNileworks Inc.
InventorsChihiro Wake, Hiroshi Yanagishita
Life of this patent
Estimating the term…
Abstract
An agricultural chemical spraying drone with improved safety is provided. The drone includes an altitude measurement sensor and a speed measurement sensor and controls not to exceed an altitude restriction and a speed restriction of an airframe by using a flight controller. The sensors are desirable be combination of multiple types. Particularly, the altitude is desirably measured by a GPS during take-off and by a sonar during chemical spraying. Weight of the airframe is measured from time to time, and the altitude restriction and the speed restriction may be adjusted according to the weight.
Claims13
A drone, comprising:
- an altitude measurement unit, an altitude adjustment unit, and a weight measurement unit;
- wherein the altitude adjustment unit adjusts an airframe altitude, measured by the altitude measurement unit according to an overall drone weight, measured by the weight measurement unit, in order for the airframe altitude not to exceed a predetermined marginal altitude, and
- wherein the altitude adjustment unit further adjusts the predetermined marginal altitude according to the overall drone weight, measured again by the weight measurement unit, and changes a marginal altitude to be higher when the overall drone weight measured by the weight measurement unit is lighter than at the time of measurement in a past.
A non-transitory computer-readable storage medium that stores a computer-executable program for controlling a drone, the program comprising:
- an altitude measuring instruction to measure an airframe altitude;
- a weight measuring instruction to measure an overall drone weight;
- an altitude adjusting instruction to adjust the airframe altitude according to the overall drone weight, measured based on the weight measuring instruction in order for the measured airframe altitude not to exceed a predetermined marginal altitude;
- and
- wherein the altitude adjusting instruction further adjusts the predetermined marginal altitude according to the overall drone weight, measured again based on the weight measuring instruction, and changes a marginal altitude to be higher when the measured overall drone weight is lighter than at the time of measurement in a past.
Dependencies are inferred from the claim text.