Assignment
7.5
- Blog Activity: Sense and Avoid Sensor Selection
Don
Moore
UNSY 601 Unmanned Systems Sensing, Perception, and Processing
Embry Riddle Aeronautical University
The
Yuneec Typhoon H hexacopter
The
FAA sponsored Sense and Avoid (SAA)
Workshop Sense and avoid (SAA) is defined by the Federal aviation
administration (FAA) sponsored SAA
Workshop as:
The
capability of a UAS to remain well clear from and avoid collisions with other airborne traffic. SAA provides
the intended functions of self-separation and collision avoidance compatible
with expected behavior of aircraft operating in the National Airspace (NAS)
(Lee & Park, 2013). It is imperative
that UAS are able to autonomously maintain separation from aircraft in order to
avoid a collision. It is also important
that the UAS has the ability to avoid a near mid-air collision (NMAC). NMAC’s
are incidents associated with the operation of an aircraft in which a
possibility of a collision occurs as a result of proximity of less than 500
feet to another aircraft, or a report is received from a pilot or flight crew
member stating that a collision hazard existed between two or more aircraft
(FAA). The way ahead would be to develop or use a reliable sense and avoid
solution.
The
Yuneec Typhoon H hexacopter uses these exact types of sensing to complete
numerous tasks.
The front sonar sensors allow the
Typhoon H to stop and hover of obstacles automatically; this actual operation
has been tested on buildings trees power lines and even humans. At the vehicle
is moving forward the sonar is continuously sending out pulses was returned
back to the device letting him know that an object is in range. The importance using sonar is because it gives
the device the ability to sense and avoid in the dark, which makes it more
flexible.
The Intel Real Sense R200
camera enables the aircraft to learn and fly around the obstacle. If returning along the same flight path the
aircraft will remember that actual location of the obstacle and automatically
avoid it in the future.
The
following technical specifications were provided by:
|
Obstacle Sensory Range
|
Forward Facing Obstacle Detection:
32.8' (10 m)
Collision Avoidance: 9.8 to 23' (3 to 7 m) depending on environment Ground to Indoor Positioning System (IPS): 14.8'（4.5 m） |
|
Field of View
|
Vertical: 40°
Horizontal: 60° |
|
Maximum Speed
|
Under Module Collision Avoidance:
11.2 mph (5 m/s)
|
|
Dimensions
|
6.0 x 4.2" (153 x 107 mm）
|
|
Weight
|
70 g (2.5 oz)
|
The
cost of the sensor is from $299-$599 however the purchase price for the fully
loaded Yuneec Typhoon H hexacopter is about
$1400.
References:
B&H Foto & Eletronics Corp.
(n.d.). Intel RealSense Module for Typhoon H Hexacopter.
Retrieved from https://www.bhphotovideo.com/bnh/controller/home?A=details&O=&Q=&ap=y&c3api=1876%2C%7Bcreative%7D%2C%7Bkeyword%7D&gclid=Cj0KCQiAkNfSBRCSARIsAL-u3X9xMhxUYZGs1pQh5HPAPzLx8yDF_gAzH
Z_T_s1jLwiTAhDBPks3dgaAspZEALw_wcB&is=REG&sku=1295941
Federal Aviation Administration (FAA).
(n.d.). FAA Near Midair Collision System
(NMACS)Retrieved
from:
http://www.asias.faa.gov/pls/apex/f?p=100%3A35%3A0%3A%3ANO%3A%3AP35_REGION_VAR%3A1
Lee,
S. M., & Park, C. (2013, February 28). NASA TechPort. Retrieved from
https://techport.nasa.gov/file/
