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Thursday, February 15, 2018

Mobile App Lets Parachutists Land with Precision

Parachutists benefit from smartphones equipped with navigation tech

CAMBRIDGE, MA—Parachutists gliding to a designated landing zone can go off course and lose their way. In such a situation, a routine jump quickly can turn dangerous. For a military parachutist unable to keep on course—or change course to a new landing zone—descending to Earth can potentially put their life in jeopardy and those around them in danger.

“Without a fail-proof way to communicate with each other, military parachutists are at risk of going off-course and landing far away from each other, which could be a real threat to their mission,” said Trevor Savage, human systems engineer at Draper.

Savage has studied parachutists and their jump teams for the military. He and his colleagues recently filed a patent for a system that automatically detects when parachutists make the critical transition from the plane to being under their parachute canopy. “Our goal is to boost the jump team’s chances of landing on target, even if they need to change their landing point during the mission.”

Draper’s division leader of Information and Cognition, Emily Vincent, said the system is designed to help jump teams succeed in the dynamic and changeable environment of a jump. “Our goal is to seamlessly integrate the technology into the jump team’s workflow in a way that enhances their situational awareness of the environment and the other members of the team.”

To design a successful parachute navigation system, Draper engineers had to overcome a host of challenges. The navigation system had to be easy to use throughout the jump. It needed to be on a touch screen, outfitted with interactive features, accessible by parachutists wearing gloves and equipped with a data layer showing terrain maps, GPS inputs and new landing points sent from the jump master. It also needed to able to guide a parachutist to a landing spot from as high as 20,000 feet and from miles away.

“Giving parachutists a sense of direction and orientation during a jump is a challenge because they are moving so fast and potentially pushed around by heavy winds, or need to adjust to changing conditions,” said Savage. “Our technology improves mission success during jumps by keeping the team safer and in communication with each other.”

The system operates as a plug-in to a smartphone—the first version is for the Android platform. Parachutists can use the app to see the terrain below them, the location of the jump team around them and the designated landing point. The app can also track the parachutists by sensing the moment they leave the plane. The app automatically switches navigation modes at that point, leaving the parachutist free to focus on maneuvering their parachute rather than adjusting the app.

“Draper’s human-centered design focuses on the human at the center of the mission, in this case, the parachutist,” Vincent said. “We help teams with dynamic situational awareness needs, giving them better understanding of their environment and innovative decision support and communication tools. Our systems can be configured for a variety of users, such as warfighters, firefighters, astronauts, emergency room nurses and disaster recovery teams.”

The current advance in navigation systems, which was funded by the U.S. Army, is part of Draper’s growing human-centered solutions portfolio. The portfolio includes a “take me home” button designed to return astronauts safely to an orbiting space station. Draper has deep skills in the design, development and deployment of systems to support cognition in a range of situations—for users seated at desks, on the move with mobile devices or maneuvering in the cockpit of vehicles.

A smartphone app developed by Draper is designed to help military parachutists land with higher accuracy. (Photo credit: U.S. Army) Draper’s parachute navigation system operates as a plug-in to a smartphone—the first version is for the Android platform. (Photo credit: U.S. Army)
Capabilities Used
Positioning, Navigation & Timing (PNT)

Draper develops novel PN&T solutions by combining precision instrumentation, advanced hardware technology, comprehensive algorithm and software development skills, and unique infrastructure and test resources to deploy system solutions. The scope of these efforts generally focuses on guidance, navigation, and control GN&C-related needs, ranging from highly accurate, inertial solutions for (ICBMs) and inertial/stellar solutions for SLBMs, to integrated Inertial Navigation System(INS)/GPS solutions for gun-fired munitions, to multisensor configurations for soldier navigation in GPS-challenged environments. Emerging technologies under development that leverage and advance commercial technology offerings include celestial navigation (compact star cameras), inertial navigation (MEMS, cold atom sensors), precision time transfer (precision optics, chip-scale atomic clocks) and vision-based navigation (cell phone cameras, combinatorial signal processing algorithms).

Human-Centered Solutions

Draper has continued to advance the understanding and application of human-centered engineering to optimize the interaction and capabilities of the human’s ability to better understand, assimilate and convey information for critical decisions and tasks. Through its Human-Centered Solutions capability, Draper enables accomplishment of users’ most critical missions by seamlessly integrating technology into a user’s workflow. This work leverages human-computer interaction through emerging findings in applied psychophysiology and cognitive neuroscience. Draper has deep skills in the design, development, and deployment of systems to support cognition – for users seated at desks, on the move with mobile devices or maneuvering in the cockpit of vehicles – and collaboration across human-human and human-autonomous teams.

Image & Data Analytics

Draper combines specific domain expertise and knowledge of how to apply the latest analytics techniques to extract meaningful information from raw data to better understand complex, dynamic processes. Our system design approach encompasses effective organization and processing of large data sets, automated analysis using algorithms and exploitation of results. To facilitate user interaction with these processed data sets, Draper applies advanced techniques to automate understanding and correlation of patterns in the data. Draper’s expertise encompasses machine learning (including deep learning), information fusion from diverse and heterogeneous data sources, optimized coupling of data acquisition and analysis and novel methods for analysis of imagery and video data.

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