公开(公告)号：US07962252B2

公开(公告)日：2011-06-14

申请号：US11422984

申请日：2006-06-08

申请人： Qamar A. Shams ,  Michael J. Logan ,  Robert L. Fox ,  Christopher L. Fox, legal representative ,  Melanie L. Fox, legal representative ,  John C. Ingham ,  Sean A. Laughter ,  Theodore R. Kuhn, III ,  James K. Adams ,  Walter C. Babel, III

发明人： Qamar A. Shams ,  Michael J. Logan ,  Robert L. Fox ,  John C. Ingham ,  Sean A. Laughter ,  Theodore R. Kuhn, III ,  James K. Adams ,  Walter C. Babel, III

IPC分类号： G01C23/00

CPC分类号： G05D1/101

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.

摘要翻译： 为无人机（UAV）提供独立的航空电子感测和飞行控制系统。 该系统包括用于感测飞行控制参数和监视参数的传感器，以及全球定位系统（GPS）接收器。 飞行控制参数和位置信号被处理以产生飞行控制信号。 现场可编程门阵列（FPGA）被配置为提供存储各组值的查找表，其中每组与安装在UAV上的伺服机构相关联，并且每组中的每个值表示伺服机构的唯一占空比 相关联。 每组中的每个值进一步被索引到指示与其相关联的伺服机构的最大占空比的唯一百分比的位位置。 FPGA还被配置为提供耦合到查找表的多个脉宽调制（PWM）发生器。 每个PWM发生器与伺服机构中的一个相关联并且适于耦合到其中一个伺服机构。