Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

APL Backpack-Sized Mini-mapper Captures Intel in Tight Spots

27.03.2013
Engineers at APL have developed a portable mapping system—carried in a backpack—that can be used to automatically create annotated physical maps of locations where GPS is not available, such as in underground areas and on ships.

Produced for the Defense Threat Reduction Agency (DTRA), the Enhanced Mapping and Positioning System (EMAPS) captures a floor-plan-style map of the area traversed, as well as 360-degree photos and sensor readings of that area using a combination of lasers and sensors.

The system improves upon algorithms once developed for robots—which are not practical for all environments—and has a built-in allowance for normal human movement, like walking.

Using light, detection, and ranging (LIDAR) sensors, EMAPS works while operators walk through an area carrying the unit in a backpack. Designed mainly to detect and map environmental threats on ships and in other tough-to-get-to locations, EMAPS' novel algorithms also associate critical environmental data, such as radiation or radio frequency signal levels, with map locations.

The basic EMAPS unit is an approximately six-inch cube that weighs less than four pounds (smaller than a brick), and includes a 270-degree laser scanner that measures the distances to walls and features in the environment. "EMAPS virtually takes pictures with every step," says Jason Stipes, of the Force Projection Department. "Using this technology, we can map almost every nook and cranny of targeted locations, capture that intelligence, and store it. Sensors can also detect threats, such as radiation or chemicals, and include them in our map."

A second laser scanner is available to allow 3-D data collection, while an inertial sensor measures the roll, pitch, and yaw of the system to compensate for steps taken by the user. In addition, a removable camera system can be used to capture omnidirectional images along the walker's path. A GPS receiver can be connected to EMAPS to allow for georegistration of the data, and an onboard computer stores and processes data in real time.

Stipes says EMAPS has collected more than 100 hours of mapping data from a wide array of GPS-denied environments, including ships, underground storage facilities, Army training areas, and buildings such as the Smithsonian Natural History Museum. The maps include paths that are several miles long, in environments ranging from office buildings to complex engine rooms of ships at sea.

"The EMAPS software addresses a number of challenges using specially developed algorithms," says Stipes. "Working with DTRA, APL engineers have created software to efficiently map data without boundaries while using a fixed amount of computer memory. And, while previous algorithms fail in open areas and long, smooth hallways, we have been able to design algorithms to map these challenging environments."

Gina Ellrich | EurekAlert!
Further information:
http://www.jhuapl.edu
http://www.jhuapl.edu/newscenter/stories/st130321.asp

More articles from Information Technology:

nachricht UCI electrical engineering team develops 'beyond 5G' wireless transceiver
16.07.2019 | University of California - Irvine

nachricht Artificial neural network resolves puzzles from condensed matter physics: Which is the perfect quantum theory?
12.07.2019 | Technische Universität München

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Megakaryocytes act as „bouncers“ restraining cell migration in the bone marrow

Scientists at the University Würzburg and University Hospital of Würzburg found that megakaryocytes act as “bouncers” and thus modulate bone marrow niche properties and cell migration dynamics. The study was published in July in the Journal “Haematologica”.

Hematopoiesis is the process of forming blood cells, which occurs predominantly in the bone marrow. The bone marrow produces all types of blood cells: red...

Im Focus: Artificial neural network resolves puzzles from condensed matter physics: Which is the perfect quantum theory?

For some phenomena in quantum many-body physics several competing theories exist. But which of them describes a quantum phenomenon best? A team of researchers from the Technical University of Munich (TUM) and Harvard University in the United States has now successfully deployed artificial neural networks for image analysis of quantum systems.

Is that a dog or a cat? Such a classification is a prime example of machine learning: artificial neural networks can be trained to analyze images by looking...

Im Focus: Extremely hard yet metallically conductive: Bayreuth researchers develop novel material with high-tech prospects

An international research group led by scientists from the University of Bayreuth has produced a previously unknown material: Rhenium nitride pernitride. Thanks to combining properties that were previously considered incompatible, it looks set to become highly attractive for technological applications. Indeed, it is a super-hard metallic conductor that can withstand extremely high pressures like a diamond. A process now developed in Bayreuth opens up the possibility of producing rhenium nitride pernitride and other technologically interesting materials in sufficiently large quantity for their properties characterisation. The new findings are presented in "Nature Communications".

The possibility of finding a compound that was metallically conductive, super-hard, and ultra-incompressible was long considered unlikely in science. It was...

Im Focus: Modelling leads to the optimum size for platinum fuel cell catalysts: Activity of fuel cell catalysts doubled

An interdisciplinary research team at the Technical University of Munich (TUM) has built platinum nanoparticles for catalysis in fuel cells: The new size-optimized catalysts are twice as good as the best process commercially available today.

Fuel cells may well replace batteries as the power source for electric cars. They consume hydrogen, a gas which could be produced for example using surplus...

Im Focus: The secret of mushroom colors

Mushrooms: Darker fruiting bodies in cold climates

The fly agaric with its red hat is perhaps the most evocative of the diverse and variously colored mushroom species. Hitherto, the purpose of these colors was...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on UV LED Technologies & Applications – ICULTA 2020 | Call for Abstracts

24.06.2019 | Event News

SEMANTiCS 2019 brings together industry leaders and data scientists in Karlsruhe

29.04.2019 | Event News

Revered mathematicians and computer scientists converge with 200 young researchers in Heidelberg!

17.04.2019 | Event News

 
Latest News

Flying Laptop satellite mission extended by two years - Successfully in orbit since July 14, 2017

16.07.2019 | Physics and Astronomy

New safer, inexpensive way to propel small satellites

16.07.2019 | Power and Electrical Engineering

UCI electrical engineering team develops 'beyond 5G' wireless transceiver

16.07.2019 | Information Technology

VideoLinks
Science & Research
Overview of more VideoLinks >>>