| US 7,543,780 B1 | ||
| Unmanned air vehicle transmission line docking surveillance | ||
| Patrick T. Marshall, Tipp City, Ohio (US); Douglas M. Abner, Yellow Springs, Ohio (US); and Robert Williams, Riverside, Ohio (US) | ||
| Assigned to The United States of America as represented by the Secretary of the Air Force, Washington, D.C. (US) | ||
| Filed on Jan. 13, 2006, as Appl. No. 11/344,631. | ||
| Application 11/344631 is a continuation in part of application No. 11/169260, filed on Jun. 24, 2005, granted, now 7,318,564. | ||
| Claims priority of provisional application 60/617798, filed on Oct. 04, 2004. | ||
| Int. Cl. G05D 1/00 (2006.01); B64C 13/20 (2006.01) | ||
| U.S. Cl. 244—194 [244/190; 244/175; 244/110 G; 701/3] | 18 Claims |

| 1. A small unmanned air vehicle electrical transmission line docking surveillance apparatus comprising the combination of:
a small unmanned air vehicle having a combination closable magnetic circuit and docking support magnetic field energy responsive
element received therein;
a plurality of electric and magnetic field sensing elements disposed on dispersed external physical portions of said small
unmanned air vehicle;
a small unmanned air vehicle flight control apparatus having an electrical signal input port and a plurality of said small
unmanned air vehicle flight surface connected mechanical output signals;
small unmanned air vehicle electrical propulsion apparatus having an electrical energy input port and an electrical control
signal input port;
a rechargeable electrical battery received within said small unmanned air vehicle and selectively connected with said closable
magnetic circuit, said flight surface control apparatus, and said electrical propulsion apparatus; and
a programmable electronic computer apparatus energized by said rechargeable electrical battery and having electrical output
signals controlling said closable magnetic circuit, said flight surface control apparatus, and said electrical propulsion
apparatus;
said programmable electronic computer apparatus including a transmission line catenary shape detection algorithm responsive
to signals generated in said electric and magnetic field sensing elements and an unmanned air vehicle guidance algorithm responsive
to said vehicle approaching a selected docking location along a vehicle encountered transmission line catenary curve; and
said small unmanned air vehicle is configured to dock and recharge while docked on a transmission line.
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