Obstacle detection and warning system for aircraft navigation at airports

2000 ◽  
Author(s):  
Laurent Gallo
Keyword(s):  
Warning System ◽  
Obstacle Detection ◽  
Aircraft Navigation

Cane Mounted Knee-Above Obstacle Detection and Warning System for the Visually Impaired

2007 ◽  
Author(s):  
M. Balakrishnan ◽  
Kolin Paul ◽  
Ankush Garg ◽  
Rohan Paul ◽  
Dheeraj Mehra ◽  
...  
Keyword(s):  
Low Cost ◽  
Warning System ◽  
Obstacle Detection ◽  
Independent Mobility ◽  
Distance Information ◽  
Detection Range ◽  
Knee Height ◽  
Detection Of Objects ◽  
White Cane ◽  
Visually Challenged

There are numerous constraints that visually challenged people face in independent mobility and navigation. They primarily use the white cane as a mobility aid allowing them to detect close by obstacles on the ground. The detection of objects above knee height is almost impossible and is a major hindrance for them. In this work, we have reported the design and implementation of a detachable unit which acts to augment the functionality of the existing white cane, to allow knee-above obstacle detection. This unit consists of an ultrasonic ranger and a vibrator controlled by an eight bit microcontroller to offer an increased detection range of three meters. The distance information is conveyed to the user through non-interfering multi-frequency vibratory stimuli, the frequency of vibration indicating the proximity of obstacles. This unit is also capable of detecting fast moving obstacles. Considerable effort has gone into the electromechanical design of this unit conveying the vibrations effectively and ensuring that it is easily attachable on the existing white cane without sighted assistance. A crucial design optimization goal was cost — the unit has been developed as a “low cost” device which is affordable by the poor in developing countries.

scholarly journals Obstacle detection and warning system for visually impaired people based on electrode matrix and mobile Kinect

2016 ◽  
Vol 4 (2) ◽  
pp. 71-83 ◽  
Author(s):  
Van-Nam Hoang ◽  
Thanh-Huong Nguyen ◽  
Thi-Lan Le ◽  
Thanh-Hai Tran ◽  
Tan-Phu Vuong ◽  
...  
Keyword(s):  
Visually Impaired ◽  
Warning System ◽  
Obstacle Detection ◽  
Visually Impaired People ◽  
Impaired People ◽  
Electrode Matrix

scholarly journals A Vision-based Driver Night Time Assistance and Surveillance System

2021 ◽  
Vol 9 (VI) ◽  
pp. 3662-3670
Author(s):  
Sahil Sayyad
Keyword(s):  
Surveillance System ◽  
Low Vision ◽  
Warning System ◽  
Obstacle Detection ◽  
Road Accidents ◽  
Night Time ◽  
Major Purpose ◽  
Organic Condition ◽  
Eye Closure ◽  
Detection Strategies

In India round 1.5 lakh humans died per year in avenue twist of fate because of road accidents most of them were due to low vision and weariness problems. Weariness (Extreme Tiredness) or Fatigue is a major purpose of avenue accidents and has extensive implications for street safety. several deadly accidents can be avoided if the drowsy drivers are warned in time. In many cases it is observed that a car hits some object/obstacle on road due to low vision in that case an object detection and warning system can help to avoid such accidents. Basically, Weariness is a state of sleepiness which abnormally happen when we are very tired or whilst drunken. A spread of drowsiness detection strategies exist that monitor the driving force’s drowsiness state at the same time as driving and alarm the drivers if they're no longer concentrating on driving. The relevant features can be extracted from facial expressions including yawning, eye closure and head actions for inferring the level of weariness. The organic condition of driver’s body is analyzed for driver weariness detection. So, this utility overcomes the trouble of driver weariness detection and object/obstacle detection & warning whilst driving using eye extraction, facial extraction, object and its distance detection using different algorithms.

Performance of obstacle detection and collision warning system for civil helicopters

2006 ◽  
Author(s):  
Naruto Yonemoto ◽  
Kazuo Yamamoto ◽  
Kimio Yamada ◽  
Hidemi Yasui ◽  
Naohiro Tanaka ◽  
...  
Keyword(s):  
Warning System ◽  
Obstacle Detection ◽  
Collision Warning

Design and Evaluation of a Prototype Rear Obstacle Detection and Driver Warning System

2005 ◽  
Vol 47 (1) ◽  
pp. 199-215 ◽  
Author(s):  
Robert E. Llaneras ◽  
Charles A. Green ◽  
Raymond J. Kiefer ◽  
William J. Chundrlik ◽  
Osman D. Altan ◽  
...  
Keyword(s):  
Warning System ◽  
Obstacle Detection

scholarly journals Assisting the Visually Impaired: Obstacle Detection and Warning System by Acoustic Feedback

Sensors ◽  
2012 ◽  
Vol 12 (12) ◽  
pp. 17476-17496 ◽  
Author(s):  
Alberto Rodríguez ◽  
J. Javier Yebes ◽  
Pablo Alcantarilla ◽  
Luis Bergasa ◽  
Javier Almazán ◽  
...  
Keyword(s):  
Visually Impaired ◽  
Warning System ◽  
Obstacle Detection ◽  
Acoustic Feedback
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