Featured Research

from universities, journals, and other organizations

Smartphone accelerometers distinguish between different motorized transportation modalities

Date:
November 13, 2013
Source:
University of Helsinki
Summary:
Researchers have demonstrated how the embedded accelerometers of smartphones can be used to distinguish between different motorized transportation modalities. Experimental evaluation demonstrates over 80 percent accuracy in detecting the most common public transportation types.

Identifying the individual's transportation behavior is a fundamental problem, as it reveals information about the user's physical activity, personal CO2 -footprint and preferred transit type. On a larger scale, this information could be aggregated to discover information about the utilization of different transportation options to aid urban planning.

Researchers from the University of Helsinki have developed methods for extracting information about vehicular movement patterns from measurements of a smartphone accelerometer. The key idea is to extract characteristic acceleration and breaking patterns and to use these as a kind of signature to separate between different vehicular transportation modes.

The main researcher, Samuli Hemminki, explains: "Extracting vehicular movement information from smartphone accelerometers is challenging as the placement of the device can vary, users interact with the phone spontaneously, and as the orientation of the phone can change dynamically. We overcame these challenges by developing novel algorithms for processing and analyzing accelerometer measurements."

Experimental evaluations demonstrate that the technique can detect most common public transportation types (bus, tram, metro, train, car, walking) with over 80 per cent accuracy. The benefits of the method are particularly pronounced in daily monitoring as the system has low power consumption and works robustly in continuous detection tasks.

Dr. Petteri Nurmi from University of Helsinki adds: "Our work enables fine-grained modeling of human transportation behavior and serves as an important building block for new kinds of mobile applications. For example, our methods would be beneficial to an application that provides feedback to encourage drivers towards more ecological driving style or to map deviations in public transportation."

Professor Sasu Tarkoma explains: "This research shows that it is possible to accurately detect the transportation mode on smartphones in an energy efficient manner. The system enables a whole new breed of mobility-aware applications and services."


Story Source:

The above story is based on materials provided by University of Helsinki. Note: Materials may be edited for content and length.


Cite This Page:

University of Helsinki. "Smartphone accelerometers distinguish between different motorized transportation modalities." ScienceDaily. ScienceDaily, 13 November 2013. <www.sciencedaily.com/releases/2013/11/131113125835.htm>.
University of Helsinki. (2013, November 13). Smartphone accelerometers distinguish between different motorized transportation modalities. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2013/11/131113125835.htm
University of Helsinki. "Smartphone accelerometers distinguish between different motorized transportation modalities." ScienceDaily. www.sciencedaily.com/releases/2013/11/131113125835.htm (accessed July 22, 2014).

Share This




More Science & Society News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Courts Conflicted Over Healthcare Law

Courts Conflicted Over Healthcare Law

AP (July 22, 2014) Two federal appeals courts issued conflicting rulings Tuesday on the legality of the federally-run healthcare exchange that operates in 36 states. (July 22) Video provided by AP
Powered by NewsLook.com
What Self-Made Women Need to Know Financially Before Getting Hitched

What Self-Made Women Need to Know Financially Before Getting Hitched

TheStreet (July 21, 2014) Halle Berry was recently ordered to pay her ex-boyfriend Gabriel Aubry $16,000 a month in child support by a California judge for their daughter Nahla. As women make strides in the workforce, they are increasingly left holding the bag when relationships end regardless of marital status. 'What Monied Women Need to Know Before Getting Married or Cohabitating' discusses information such as debt incurred during the marriage is both spouse's responsibility at divorce, whether after ten years of marriage spouses are entitled to half of everything and why property acquired within the marriage is fair game without a pre-nup. Video provided by TheStreet
Powered by NewsLook.com
$23.6 Billion Awarded To Widow In Smoking Lawsuit

$23.6 Billion Awarded To Widow In Smoking Lawsuit

Newsy (July 20, 2014) Cynthia Robinson claims R.J. Reynolds Tobacco Company hid the health and addiction risks of its products, leading to the death of her husband in 1996. Video provided by Newsy
Powered by NewsLook.com
Clock Ticks Down on Internet Speed Debate

Clock Ticks Down on Internet Speed Debate

Reuters - US Online Video (July 18, 2014) The FCC received more than 800,000 comments on whether and how internet speeds should be regulated, even crashing its system. Lily Jamali reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins