A control system and method for tensioning an active tether for a multirotor unmanned aerial system is provided. The control system includes a tensioning pulley and a tensioning spring. The tensioning spring is arranged to generate a variable tension force on the active tether. A transducer is connected adjacent to the tensioning spring to sense a linear displacement position of the tensioning pulley and to transmit a position signal to a controller. The position signal is proportional to the linear displacement position. A servomotor in communication with the controller receives a control signal from the controller in response to the position signal. The servomotor drives a cable reel. The cable reel is rotatably mounted in the frame for spooling the tether in response to rotation of the servomotor. The cable reel is rotated by the servomotor to maintain a predetermined tension on the tensioning spring.


    Access

    Download


    Export, share and cite



    Title :

    Active tether control for a tethered multirotor


    Contributors:

    Publication date :

    2023-08-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66D Haspeln , CAPSTANS / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES , Handhaben von dünnem oder fadenförmigem Gut, z.B. Folien, Bahnen, Kabeln




    Cable Optimization and Drag Estimation for Tether-Powered Multirotor UAVs

    Beffert, Max / Zell, Andreas | ArXiv | 2025

    Free access

    Tethered aerial system and tether cable

    AZEVEDO BRUNO AVENA DE / NETO ISMAEL JORGE COSTA / JÚNIOR GILSON VICENTE SOARES et al. | European Patent Office | 2023

    Free access

    TETHERED AERIAL SYSTEM AND TETHER CABLE

    AZEVEDO BRUNO AVENA DE / NETO ISMAEL JORGE COSTA / JÚNIOR GILSON VICENTE SOARES et al. | European Patent Office | 2019

    Free access

    Tethered aerial system and tether cable

    AZEVEDO BRUNO AVENA DE / NETO ISMAEL JORGE COSTA / JÚNIOR GILSON VICENTE SOARES et al. | European Patent Office | 2019

    Free access