Skip navigation

community

News

5 Posts tagged with the autonomous tag
1

 

Car technology has advanced so much within the last decade most people probably do not recognize automobiles are edging close to autonomous. Cars have subtly took over more driving tasks starting with simple cruise control to automatic parallel parking and braking systems that can detect objects that the driver may not see. It is only a matter of time before cars that are fully capable of driving themselves are commonplace.

 

 

A perfect example of these new cars is Google's self-driving fleet. The cars use an array of sensors and complex algorithms to navigate the road safely. The heart of the system is Velodyne's HDL-64 LiDAR sensor. The sensor currently sits on top of the hood and spins at 10 revolutions per second constantly collecting data from the environment. It generates 1.3 million data points (750 Mbytes per second through an ethernet interface) that allows software to analyze and map obstacles and potential hazards. The laser sensors can create a 3D view of the environment up to 40 meters, and it collects centimeter resolution data from 80 to 100 meters away.

 

 

The biggest obstacle facing the robot-car is liability. There can be major discrepancies over who is at fault when an accident occurs, or if a user is to be ticketed for some reason. However, the cars promise improved safety and fuel-efficiency and many politicians are working to help legalize the cars. For example, Nevada allows driverless cars. However, the owners must pay a $1-$3 million insurance bond per vehicle. If you are ever out in the desert state, look for cars with a red license plate... those are autonomous.

 

 

Currently, many states and other countries are working on systems that will allow these cars to freely roam the roads. Many people may fear leaving total control of their cars up to computers; what if the computer makes a mistake? Google's autonomous fleet had one accident in 160,000 miles driven. For the record, it was when a human took the wheel. (Most people have had more accidents in less miles, also for the record.)

 

 

Steve Mahan is legally blind (95%), but thanks to Google's autonomous cars he was able to take a trip to a local fast food restaurant. Mahan explained, "There are some places you cannot go, some things that you really cannot do... Where this would change my life, is to give me the independence and the flexibility to go to the places I both want to go and need to go when I need to do those things." Google has labeled Mahan the first user of the technology; "Self-Driving Car User #0000000001."

 

 

Although there is more testing a work to be done on the autonomous car before wide-spread adoption, they are on the road now. Who doesn't want smooth moving computer-controlled traffic?

 

Eavesdropper

0

junecam.jpg

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).

 

Julius_Neubronner_with_pigeon_and_camera_1914_cropped.jpg

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:

 

Pigeon_photographers_and_aerial_photographs.jpg

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.

 

Bundesarchiv_Bild_183-R01996,_Brieftaube_mit_Fotokamera_cropped.jpg

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.

 

Brieftaubengruppe.jpgNeubronner_mobile_dovecote_and_darkroom.jpg

(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.

 

451px-Kronberger-burg-museum010.jpg

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

2

ErgoRobots5.jpgErgoRobots13.jpg

The robot subjects of the exhibit (via INRIA Flowers)

 

All the complexities of the human mind will take decades, if not centuries, to reproduce in robotics. (That is, barring some technological singularity.) Still, step by tiny step we are learning about what it would take to achieve artificial intelligence in robots. Pierre-Yves Oudeyer and his team from the INRIA ENSTA ParisTech are beginning to explore an artificial representation of one of the most intriguing and useful human traits: curiosity. The installation is called “Mathematics: A Beautiful Elsewhere”. Leading the project are Oudeyer, mathematician Mikahail Gromov and American director and visual artist, David Lynch. Oudeyer and his team designed the robots and their computational model for curiosity-driven learning. Gromov contributed his mathematical theory on ergo-systems and Lynch was responsible for designing the Ergo-robot habitat that looks like an egg and is mean to represent the “origin”.

To study artificial curiosity, they are equipping some intriguing looking robots with auditory and visual sensors to pique their interest and curiosity with visuals and sounds. The Ergo-robot’s software was inspired and designed to reproduce learning techniques used by human infants. Autonomously, the robot can detect sound, respond and hear feedback and engage in a loop interaction.  Within these loops are data compressors to predict for the next input, along with reward value systems. The robots can learn to hear and emit new sounds from and to other robots and people. They even learn new behaviors. The team hopes the Ergo-robots will develop a form of communication amongst themselves and people as to eventually self-organize their own culture.  


The display features 5 robots that are fastened to the ground at their base. Their bodies are comprised of a vertebrae-like mechanism that allows each robot to move like a snake sticking out of the ground. Their heads resemble prehistoric primate skulls and move around to look their environment, at each other and at people attending the display at the Cartier Pour l’Art Contermporain Foundation in Paris.


The installation will be open to the public until March 18, 2012. If these robots do start to learn and develop their artificial intelligence, it will be a good thing they are bolted to the ground.

 


 


 

Cabe

http://twitter.com/Cabe_e14


See the latest with our atificial friends in the Robotics group.

1

(Dec 2011)

 

switchblade slv.jpgc4f1b81d-3c5e-4118-b912-eeab4a00a51c.Large.jpg

(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

 

Sometimes we cannot even spare 5 minutes to read an article, let alone 10 to watch a video. Here are the article's highlights:

- Developed at the Modular Robotics Laboratory in the University of Pennsylvania.

- A mothership robot assembles joint robots into a larger system with insulating, hard, foam.

- Onboard software figures out the best way to move the assembled system.

For those who do have time, continue below:

 


 

One of the pinnacles of robotics is when bots can build themselves. The Modular Robotics Laboratory at the University of Pennsylvania has taken a major step towards replication with their new FoamBot. As what can be assumed from the name, it uses foam to build other types of bots, from a snake to a quadruped.

 

Project lead Shai Revzen, with is team, created FoamBot as a way to built robots with particular functions to complete specific jobs. The FoamBot system requires a "mothership" and joint module bots. The wheeled mothership will move the joint bots to their required positions and then apply a spray foam (hard urethane foam) to connect the modules together into the FoamBot superstructures. The foam itself is off the shelf insulation foam. The application mechanism uses a spring-clamp, and is guided by a laser pointer so the bot can track the position accurately.

 

The module bots, clusters, are pre assembled. The anchoring point for the foam are 5cm bolts sticking out of each end. After the clusters of the joints are connected, the software then attempts to figure out a control scheme to perform the task needed. For example, once built into the quadruped layout, the software makes a control routine that best allows the whole system to move. The assembled FoamBots can return to the mothership for modification.

 

 

The idea of FoamBot is to adapt to unanticipated task requirements. The only addition left is to make FoamBot fly, just foam in a quadcopter. Read more about FoamBot at the Penn website.

 

Eavesdropper


 

What is new in robotics? Check out the element14 Robotics Group.