发明名称 |
Self-contained avionics sensing and flight control system for small unmanned aerial vehicle |
摘要 |
A self-contained avionics sensing and flight control system is provided for an unmanned aerial vehicle (UAV). The system includes sensors for sensing flight control parameters and surveillance parameters, and a Global Positioning System (GPS) receiver. Flight control parameters and location signals are processed to generate flight control signals. A Field Programmable Gate Array (FPGA) is configured to provide a look-up table storing sets of values with each set being associated with a servo mechanism mounted on the UAV and with each value in each set indicating a unique duty cycle for the servo mechanism associated therewith. Each value in each set is further indexed to a bit position indicative of a unique percentage of a maximum duty cycle for the servo mechanism associated therewith. The FPGA is further configured to provide a plurality of pulse width modulation (PWM) generators coupled to the look-up table. Each PWM generator is associated with and adapted to be coupled to one of the servo mechanisms.
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申请公布号 |
US7962252(B2) |
申请公布日期 |
2011.06.14 |
申请号 |
US20060422984 |
申请日期 |
2006.06.08 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
SHAMS QAMAR A.;LOGAN MICHAEL J.;FOX ROBERT L.;INGHAM JOHN C.;LAUGHTER SEAN A.;KUHN, III THEODORE R.;ADAMS JAMES K.;BABEL, III WALTER C. |
分类号 |
G01C23/00 |
主分类号 |
G01C23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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