Sunday, April 19, 2015

UNSY 501, Assignment 4.4, Unmanned Aerospace Systems



Source Article:
Wenz, J.  (2015, February 10).  Drone Waiters Will Now Take Your Order.  Popular Mechanics.  Retrieved from http://www.popularmechanics.com/flight/drones/a14017/drone-waiters-infinium-robotics-singapore/

The use of unmanned aerospace systems (UAS) in commercial applications are on the verge of reality.  Along with the development and operations work to bring commercial applications projects to fruition, potential operators must consider safety and liability issues.  Until these concerns are addressed, this technology will not be accepted by the public.

With any new technology, the public’s trust must be gained through proof of effective and safe operations.  Not only must a new technology demonstrate utility to appeal to future users but also safe operation to avoid harm to people’s lives.  Wenz (2015) writes that some restaurants in Singapore are seeking to alleviate a service labor shortage in the country’s dining establishments with UAS “waiters”.  The example in Wenz’s article is an Infinium Robotics quad-rotor design capable of a payload of 4.4 pounds.  The UAS employs infrared navigational sensors to avoid collisions with people, other UAS, and structures.  The Infinium quad-rotor UAS feature protective grates over the rotors and avoidance sensors as safety measures.  However, there is no mention of how effective the sensors are at avoiding collisions or the crash test characteristics of the UAS “waiters”.  There are numerous questions that must be addressed regarding safety and accidents.  For example, if a person moves suddenly and unexpectedly in front of a UAS, will the sensors and flight control system react quickly enough to avoid a collision?  Could an evasive maneuver possibly result in a hot entree being spilled on to a person?  If the “waiter” is accidentally overloaded with weight, will the flight control logic return an error and prevent take-off?  Are there any items that the restaurant serves that are within the cargo weight limits but adversely affect the center-of-gravity and stability of the UAS?  In the event of a collision, how resilient is the fuselage?  How much force can be absorbed before a protective grate over the rotor gets knocked loose?  What procedures are in place in the event of an accident?  These are questions that must be answered before this system becomes fully operational.

A similar quad-rotor UAS was used in a Christmas-time promotion at a New York City restaurant in 2014.  A restaurant used the UAS to carry aloft a sprig of mistletoe.  The operator maneuvered the craft through the restaurant and hovered over a couples’ table to encourage them to partake in the holiday tradition.  During one such flight, one of the aircraft rotors struck a patron in the face, causing injury (Ogle, 2014).  This type of accident should be cause for concern for all potential operators of UAS for commercial purposes.  Insurance coverage for liability, accidents, and medical costs will most likely be all but required for commercial operation.  Without coverage, the aftermath of an accident may result in severe financial hardship for the liable business operating the UAS.  The method by which the insurance coverage is offered will also have impact on business owners’ decisions on whether or not to field a UAS.  Questions to consider are whether the insurance coverage will be a separate policy or offered as a special add-on to an existing policy?  Will the cost of coverage be prohibitive to operations?  Will insurance agencies stipulate some degree of formal training and certification for operators or offer a discount for such training?  Will larger, more reliable agencies be willing to risk entering this new market or will smaller, start-up agencies be the only ones willing to take the initial risk?

Commercial operation of UAS will most certainly have a place in our future.  However, potential operators must ensure that proper steps and due diligence is exercised to protect themselves in the event of accidents and ensure the public’s safety to the highest degree.


References:

Ogle, V.  (2014, December 8).  Drone strike! Our photographer injured by TGI Friday’s mistletoe copter.  Brooklyn Daily, 50.  Retrieved from http://www.brooklyndaily.com/stories/2014/50/bn-drone-disaster-at-tgifridays-2014-12-12-bk_2014_50.html

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