A Stability Augmentation Testing System of Small-Size Unmanned Helicopters
The small-size remote control helicopters have been greatly limited their application for their very difficult operation, short distance of remote control. To solve this problem, the key lies in the development of practical, reliable stability augmentation system for automatic level posture balance and upgrading to beyond-visual-range controlled unmanned helicopter. A method determining stability augmentation system algorithms and controls by experiments, and applied hardware and software system realizing the above stability augmentation testing method presented. The system is composed of two parts, i.e. airborne parts and ground systems. Airborne parts include acquisition of up-down and ailerons steering engine receiver signals; acquisition of pitch, incline signals and error signals; correction signal calculation; up-down and ailerons steering engine control output signals; telemetry signal output, etc. Ground systems include wireless data transmission modules, computer hardware and application software developed with Delphi software having data receiving, calculation, numerical display and graphics display functions. Ground online tests show that the stability augmentation testing system can accurately collect pitch, incline signals and control signals from the receiver and transmit required testing data. Graphs and data display are normal. Thus the foundation has been built up for the final unmanned helicopters stability augmentation control.
KeywordsRemote Control Ground System Unmanned Helicopter Wireless Data Transmission Stability Augmentation
Unable to display preview. Download preview PDF.
- 1.Dong, P., Wang, G., Sheng, H.-Y., Lv, T.-S.: Position and attitude measurement for small scale unmanned helicopter based on binocular vision. Computer Engineering 35, 252–254 (2009) (in Chinese)Google Scholar
- 2.Pan, H., Wu, C.: The Development of Japanese unmanned vehicles. Unmanned Vehicles (3), 12–13 (2007) (in Chinese)Google Scholar
- 3.Gao, T., Gong, Z., Luo, J., Feng, W.: An attitude control system for small unmanned helicopters based on accelerometer and angular rate gyroscope. Journal of Spacecraft TT&C Technology 26, 70–73 (2007) (in Chinese)Google Scholar
- 4.Chang, R., Pei, H.: Design and implementation of minit system for autonomous helicopter. Control & Automation 22, 92–94 (2006)Google Scholar
- 6.Cai, W., Wang, J., Shui, H., Ma, H.X.: Control for unmanned helicopter hovering based on Sarsa algorithm. Automatic Measurement and Control 26, 54–56 (2007) (in Chinese)Google Scholar
- 7.Wang, H., Xu, J.: Flight dynamics model and stability augment design for a small-size unmanned helicopter. Journal of Nanjing University of Aeronautics & Astronautic 35, 277–282 (2003)Google Scholar
- 8.Shao, J., Liu, Z., Lv, Y., et al.: A three dimension display system of beyond-visual-range controlled unmanned helicopters based on VRML. In: Proceedings of the 27th Chinese Control Conference, vol. 3, pp. 426–429 (2008) (in Chinese)Google Scholar
- 9.Han, D., Shao, J., Liu, Z., Lv, C., Li, J.: Application of MCU timer iN model helicopter balance control system. Jounral of Kunming University of Science and Technology (Science and Technology) 30, 266–269 (2005) (in Chinese) Google Scholar
- 10.Li, J., Shao, J., Liu, Z., Zhang, Z.: Airborne system A/D transform realization of small-size unmanned helicopter’s stability augmentation testing system. Electronic Measurement Technology 32, 116–119 (2009) (in Chinese) Google Scholar