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5 Posts tagged with the uav tag
2

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(Left) U.S. Military predator drone (Right) Civilian drone filming the riots in Poland over the ACTA signing

 

UAVs have been all over the news in recent months, with the recent acquisition of military grade surplus for both federal and law enforcement agencies. For them, it is legal to fly those in most major cities. For civilians, it’s a different story, as a California based realty company found out when the FAA (Federal Aviation Administration) scolded them for using UAV’s to make promo videos for potential customers. Even hobbyists in the model airplane realm have had it rough. Federal rules dictate they can only fly them in designated areas and with a predetermined height.

 

However, this might change as the United States Senate has introduced legislature that would require the FAA to revise its rules concerning private UAVs. Included in this legislation are altitude revisions for drones that weigh up 55 pounds, that is meant to avoid collisions with commercial aircraft. That situation happens more frequently than you might think. August 2011 saw a collision of a Shadow drone and a C-130 over Afghanistan.

 

Airline pilots are voicing their concern with the revision as they have to achieve a certain amount of flight hours while drone pilots do not. They feel that UAV pilots should have to meet the same standards as human controlled aircraft. There is also the concern of crashing into residential areas as it is not uncommon for UAVs to suffer catastrophic malfunctions and plummet to the earth. Rules and at least a few test sites are already in place with full implementation of regulations coming in three years. Let the spying begin!

 

Read more about the FAA rulings after this link.

 

Also, get in on the UAV scene with DARPA's open UAVforge competition.

 

Cabe

http://twitter.com/Cabe_e14

2

 

UAV’s are everywhere these days. It seems I can’t even walk out of my house without running into a quad-rotor of some sort. Even local law enforcement agencies are getting into the act with their recent acquisition of military surplus.

 

For those of you who love them, Darpa (Defense Research Products Agency) has teamed up with SSC Atlantic (Space and Naval Warfare Systems Center) to give us average ‘Joes’ the opportunity to design the next generation of Unmanned Ariel Vehicles. Called "UAVForge," (started at the end of 2011) contest is heating up in competition with both the crazy and conventional designs. The collaboration uses ‘crowd-sourcing’ as well as a virtual environment and a fictional scenario that participants use to design their UAV’s. You can design by yourself, with a team or you may join an existing team but the contest states that participants have until Feb. 23 2012 to do so.

 

The contest consists of 6 ‘milestones’ each group or person must go through before the winner is chosen.

● Milestone 1: Contestants create a concept video to show of the design to which it’s then voted on to which the winners proceed to the next level.

● Milestone 2: Proof of flight. It has to be able to fly. The winners of this stage advance to the next round of competition.

● Milestone 3: This is where things get riveting as contestants compete with a live video demonstration.

● Milestone 4: This is the competition ‘fly-off’ where contestants compete for the prize of $100,000 US and have an opportunity to pilot the vehicle in an operational exercise.

● Milestone 5: Winners are transported all expenses paid to an operational field scenario.

● Milestone 6: The winner is awarded a contract to produce 15 operational vehicles.

 

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Concept UAV from the competition (via DARPA)


The video’s for these UAV designs give two impressions to the viewer, ‘I can’t believe that flies’ to the ingenious. Standings for milestone 2 were based off of 385 individuals casting 1511 votes along with 255 comments making GremLion, an electrical and computer engineering team from the University of Singapore coming in at number 1 out of ten so far for this round. Their design looks like a hovering shop-vac with a helicopter rotor positioned vertically in the center of it. As crazy as that sounds, the design is incredibly stable and also features ground-tracking as well as obstacle avoidance capabilities. You can see all the entry videos along with all the contest rules and regulations at the UAVForge website found here: http://www.uavforge.net/

 

Whether you join in on the fray or not, this is one competition to follow.

 

Cabe

http://twitter.com/Cabe_e14

0

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Pigeons fitted with Neubronner's various camera system (via archive photography)

 

The world is infatuated with flying robots with cameras. Take the latest toy helicopters, camera connectivity is an essential selling point. Companies announce their technological breakthrough, but they are unaware that the technology is already 104 years old (as of 2012). Pigeons outfitted with cameras took the world by storm in 1908, the product of one person, Julius Neubronner.

Julius Neubronner was a German apothecary in the at the start of the 1900s. His family consisted of a long line of early medical professionals, dealing with all things medicine, from chemical creations to surgery. Neubronner took over his father's practice in 1886. During the early days of the new pharmacy (1902), Neubronner expanded the capabilities by taking up using "pigeon post" for the delivery and receiving of urgent chemicals. A pigeon's maximum carrying weight was 75 grams (~2.6 oz).

 

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Julius Neubronner 1914 (via archive photography)

 

Pigeon post was used in high volume during the 19th and early 20th century for private and military correspondence. During the Franco-Prussian War of 1870, over 50,000 microfilm telegrams were sent via pigeon post to Paris, during the "pigeon post of Paris." During that era, pigeons were a tried and true vehicle; an autonomous flying device, capable of long-distance travel, hazard avoidance, and reusability. (not to mention easily reproducible.)


In 1903, some of Julius Neubronner's pigeons were lost in heavy fog, Eventually they found their way home; they were as healthy, and fat, as ever. This inspired Neubronner to attach a camera to the pigeons and record where it has been, tracing its path to destinations. At the time, Neubronner was an amateur photography and film maker, so it was by no long-shot that he would attempt the feat. (Side note: The lost pigeons were in the custody of a restaurant chef in Wiesbaden, hence their healthy condition upon return.)

After experimenting with a Ticka watch camera, a small film camera at the time, Neubronner set out to create a light-weight system for pigeons to carry. He developed a wooden camera model weighing between 30-75 grams that would attach to the pigeon via a harness and aluminum cuirass (chest plate). The camera worked on a time-delay system via pneumatic control. He found the pigeons would return home as fast as possible to have the camera removed, the same method behind carrier pigeon delivery. It was a success. (Neubronner built his dovecote, pigeon house, with an elastic landing board and spacious entry to accommodate the burdened pigeons. He was good to the birds.)


In 1907, he applied for a patent at the German patent office, to only to have the application rejected as being "impossible." In 1908, he produced some photographs taken with the pigeon cameras, and he was granted the patent. "Method of and Means for Taking Photographs of Landscapes from Above" was awarded in December of 1908.


The word spread after the 1909 International Aviation Exhibition in Frankfurt. During the show, people could watch pigeons returning. The pigeon's photographs were then turned into postcards for the audience. Neubronner also won prizes at the 1910 and 1911 Paris Air Show. The final camera system weighed 40 grams and could take 12 exposures.

The most famous photograph was one where the pigeon's wings are seen on either side of the image. See upper left of the image below:

 

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Aerial photographs of Schlosshotel Kronberg (top left) and Frankfurt (bottom left and center); pigeons fitted with cameras (right). (via Wiki)

 

Neubronner released a book describing 5 different models of camera on the pigeon platform:

- A double camera with lenses pointing in opposite directions.

- Stereoscopic setup with two lenses pointing in the same direction.

- One model that could transport film and take several pictures in a row.

- A bellows camera that would take a picture and retract the bellows.

- A panoramic camera based on the Doppel-sport panoramic camera. A lens would rotate 180 degrees to take a large exposure. This was never made.

 

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Pigeon fitted with a German camera circa WWI or WWII

 

Pigeon camera systems were tested for use in the first world war. Neubronner did have military use in mind when he designed it originally. Tests were conducted by the Prussian War Ministry to satisfactory results, but pigeons were never put into use for surveillance. Neubronner did make a mobile dovecote and darkroom from battlefield use. Even after training pigeons for mobility, the system was never used.

The German army did take the pigeon camera system into the field during World War II. The difference was they trained dogs to carry a set of pigeons to locations for release and recovery. Each pigeon camera was capable of 200 exposures per flight. The goal was to release these behind enemy lines. Whether these were used or not is left to speculation. However, a German nursery toy soldier was produced in the act of using the system. In 1942, the Russian army found a truck containing pigeon cameras that took pictures at five-minute intervals.

 

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(Left) German toy soldier with pigeon releasing. (Right) Neubronner's mobile dovecote

 

Despite the rise to fame and possible military use, the pigeon camera was not a profitable endeavor for Neubronner. He continued his medical practice, and it stayed in operation for two more generations. Neubronner's youngest son, Carl Neubronner, managed the company for 70 years before selling it 1995. Later, Carl Neubronner founded the Carl and Erika Neubronner Foundation to help disabled or needy people and to promote cultural non-profit organizations in Kronberg.

 

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Neubronner pigeon exhibit (via Stadtmuseum Kronberg)

 

Next camera system you see on a flying toy or UAV, remember, it all started with Julius Neubronner's pigeon camera.


Cabe

http://twitter.com/Cabe_e14

1

(Dec 2011)

 

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(Right) SLV lauch stages (Left) Switchblade UAV


In a project started in 2007, AreoVironment developed a submarine launching UAV for the U.S. Navy via Raytheon. (A typical circuitous project development path.) A submerged launch vehicle (SLV) is jettisoned from the waste port of a sub. From there, it descends to a safe distance where it sheds weight and inflates a "float collar."

 

The float collar is "pulsed" to control its travel to the surface. As it reaches the top, a water-drogue is deployed to slow its accent more and provide stabilization, while a wind vane then extends to alight the eject port properly. At 35 degrees the folded wing UAV, dubbed Switchblade, is launched.

 

The fully scalable, fully expendable, Switchblade is packed with the state of the art in surveillance. The Beyond-line-of-sight (BLOS) system (via satellite) allows the UAV to  gather reconnaissance to and from anywhere. Direct control or autonomous flight can take it to the target. Real time GPS can relay coordinates. An onboard video camera can also relay a live stream. The Switchblade can either glide silently or use a "quiet" on-board motor for self-propelling.

 

This is part of a sole-source contract awarded to Raytheon for the Navy's Submarine Over the Horizon Organic Capabilities program. It is advantageous to be the only option. No matter how elaborate the mechanism, it is the best solution. If only my projects were accepted with the same metality.

 

Here is a dramatic demonstration of the Switchblade lauched from a land-based lauching system.

 


Cabe

http://twitter.com/Cabe_e14

0

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ADAPT concept (via DARPA)

 

I bring word of a job opportunity for the hungry engineer, become a military app developer. DARPA is seeking to bring the energy and speed of cell-phone app developers to their Adaptable Sensor System (ADAPT) Program. The project is to stream data from UAVs and ground robots, and provide control, to a soldier carrying a tablet or phone. The goal is to avoid the current long development times for sensor applications, up to 10 years.

 

DARPA program manager Mark Rich explained,  "DARPA is looking to tap the smartphone application development community with experience in application creation... The rapid advancement and sophisticated capabilities in today's smartphone technology provide opportunities to revolutionize the way sensor systems are developed and used. The integrated processing, storage, communications, navigation and orientation functions built into smartphone hardware and software can be leveraged to create far more powerful distributed sensor devices than we use today... We’re actively looking for commercial app developers to address specific sensor challenges including collecting, organizing, storing and sharing video information; sharing information over communications interfaces; developing and implementing rich user interfaces to display and understand what happens in a sensor array; novel uses of smartphone capabilities to rapidly develop and deploy sensor networks."

 

If you feel this is your calling, see the ADAPTable Sensor System website.

 

Cabe

http://twitter.com/Cabe_e14