Automatic Ground Collision Avoidance System design, integration, & flight test

2011 ◽  
Vol 26 (5) ◽  
pp. 4-11 ◽  
Author(s):  
D E Swihart ◽  
A F Barfield ◽  
E M Griffin ◽  
R C Lehmann ◽  
S C Whitcomb ◽  
...  
Keyword(s):  
System Design ◽  
Collision Avoidance ◽  
Flight Test ◽  
Collision Avoidance System ◽  
Design Integration

Design, integration and flight test of an autonomous ground collision avoidance system

2011 ◽  
Vol 2 (2) ◽  
pp. 84-91 ◽  
Author(s):  
D. E. Swihart ◽  
A. F. Barfield ◽  
E. M. Griffin ◽  
R. C. Lehmann ◽  
S. C. Whitcomb ◽  
...  
Keyword(s):  
Collision Avoidance ◽  
Flight Test ◽  
Collision Avoidance System ◽  
Design Integration

Automatic Collision Avoidance System: Design, development and flight tests

2011 ◽  
Author(s):  
Salvatore Luongo ◽  
Vittorio Di Vito ◽  
Giancarmine Fasano ◽  
Domenico Accardo ◽  
Lidia Forlenza ◽  
...  
Keyword(s):  
System Design ◽  
Collision Avoidance ◽  
Design Development ◽  
Flight Tests ◽  
Collision Avoidance System

Automatic Collision Avoidance System: Design, development and flight tests

2011 ◽  
Author(s):  
Salvatore Luongo ◽  
Vittorio Di Vito ◽  
Giancarmine Fasano ◽  
Domenico Accardo ◽  
Lidia Forlenza ◽  
...  
Keyword(s):  
System Design ◽  
Collision Avoidance ◽  
Design Development ◽  
Flight Tests ◽  
Collision Avoidance System

scholarly journals APPLICATION OF DECISION TREE ON COLLISION AVOIDANCE SYSTEM DESIGN AND VERIFICATION FOR QUADCOPTER

2017 ◽  
Vol XLII-2/W6 ◽  
pp. 71-75
Author(s):  
C.-W. Chen ◽  
P.-H. Hsieh ◽  
W.-H. Lai
Keyword(s):  
Decision Tree ◽  
Collision Avoidance ◽  
Minimum Distance ◽  
Flight Test ◽  
Training Data ◽  
Decision Tree Algorithm ◽  
Tree Algorithm ◽  
Ground Station ◽  
Transmission Data ◽  
Collision Avoidance System

The purpose of the research is to build a collision avoidance system with decision tree algorithm used for quadcopters. While the ultrasonic range finder judges the distance is in collision avoidance interval, the access will be replaced from operator to the system to control the altitude of the UAV. According to the former experiences on operating quadcopters, we can obtain the appropriate pitch angle. The UAS implement the following three motions to avoid collisions. Case1: initial slow avoidance stage, Case2: slow avoidance stage and Case3: Rapid avoidance stage. Then the training data of collision avoidance test will be transmitted to the ground station via wireless transmission module to further analysis. The entire decision tree algorithm of collision avoidance system, transmission data, and ground station have been verified in some flight tests. In the flight test, the quadcopter can implement avoidance motion in real-time and move away from obstacles steadily. In the avoidance area, the authority of the collision avoidance system is higher than the operator and implements the avoidance process. The quadcopter can successfully fly away from the obstacles in 1.92 meter per second and the minimum distance between the quadcopter and the obstacle is 1.05 meters.

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