Flight Test Results of the Collision Avoidance System for a Fixed-Wing UAS using Stereoscopic Vision

2017 ◽  
Author(s):  
Subodh Bhandari ◽  
Anthony Tan ◽  
Jake Banuelos ◽  
Kishan Patel ◽  
Minwoong Chae ◽  
...  
Keyword(s):  
Collision Avoidance ◽  
Flight Test ◽  
Stereoscopic Vision ◽  
Test Results ◽  
Collision Avoidance System

Collision Avoidance System using Stereoscopic Vision for Unmanned Aerial Systems

2016 ◽  
Author(s):  
Subodh Bhandari ◽  
Thirupathi Srinivasan ◽  
Justin Gray ◽  
Mark Torstenbo ◽  
Jorge Corral ◽  
...  
Keyword(s):  
Collision Avoidance ◽  
Stereoscopic Vision ◽  
Unmanned Aerial Systems ◽  
Collision Avoidance System ◽  
Aerial Systems

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.

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 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
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