UAV having electric-field actuated generator for powering electrical load within vicinity of powerlines
A UAV in which electric power is generated for an electric load from differentials in electric field strengths within a vicinity of powerlines includes: a plurality of electrodes separated and electrically insulated from one another for enabling differentials in voltage resulting from differentials in electric field strength experienced thereat; and electrical components electrically connected therewith and configurable to establish one or more electric circuits whereby voltage differentials causes a current to flow through the established electric circuit for powering an electric load. Preferably, the UAV includes a control assembly having one or more voltage-detector components configured to detect relative voltages of the electrodes; and a processor enabled to configure—based on the detected voltages and based on voltage and electric current specifications for powering the electric load—one or more of the electrical components to establish an electric circuit for powering the electric load.
1. A method for generating electric power for an electrical load of a UAV from one or more differentials in electric field strength within a vicinity of powerlines, the UAV having a plurality of separated electrodes within the vicinity of powerlines, the method comprising the steps of:
(a) positioning the UAV within the vicinity of powerlines such that the plurality of separated electrodes experience differentials in electric field strength with resulting differentials in voltage at the electrodes; and
(b) establishing a particular one of a plurality of different electric circuits, each of the different electric circuits comprising a set of two or more mutually exclusive subsets of the plurality of electrodes, the electrodes in each subset that have more than one electrode being electrically connected with each other for avoiding any voltage differential therebetween, and the one or more electrodes of each subset being electrically insulated from each electrode of any other subset of the set for enabling one or more voltage differentials between the subsets of the set, wherein the subsets are interconnected in each electric circuit such that the one or more voltage differentials therebetween causes a current to flow through the electric circuit for powering the electrical load; and
(c) further comprising detecting voltage differentials of the sets, wherein the particular one of the plurality of different electric circuits is established as a function of the detected voltage differentials and electric current specifications for powering the electrical load.
2. The method of claim 1 , further comprising again detecting voltage differentials at the subsets of the plurality of electrodes and—as a function thereof and of the voltage and electric current specifications for powering the electrical load—establishing another particular one of the plurality of different electric circuits.
3. The method of claim 1 , further comprising again detecting voltage differentials at the subsets of the plurality of electrodes while flying the UAV along the powerlines and—as a function thereof and of the voltage and electric current specifications for powering the electrical load—establishing another particular one of the plurality of different electric circuits.
4. The method of claim 1 , wherein the powerlines carry alternating electric current.