| 1. |
- Bähr, Matthias, et al.
(författare)
-
PASSAge - Personalized Mobility, Assistance and Service Systems in an Ageing Society : PASSAge - Personalisierte Mobilität, Assistenz und Service Systeme in einer alternden Gesellschaft
- 2013
-
Ingår i: Lebensqualität im Wandel von Demografie und Technik (AAL 2013). - : VDE-Verlag.
-
Konferensbidrag (refereegranskat)abstract
- The demographic change in modern societies has a significant impact on the future planning of self-determined mobility and mobility means. An optimized accessibility of the means of transportation is required, as well as their connection towards buildings and residences. These connections have to be modular and compatible to the mobility means of the users. Barrier-free accessibility according to the existing norms can address these problems only partially. Broader and holistic concepts are needed here. The project PASSAge aims at the implementation of seamless mobility chains that smoothly connect private, semi-public and public space. Mobility shall be ensured by the extension of existing mobility means with user-oriented components. The project follows the approach to complement the barrier-free access and usage of public transportation with mostly electrically powered compact vehicles and micro vehicles. These have to be adopted by physical means and information technology means to residences and building structures. The goal is to develop a flexible socio-technical infrastructure with a multitude of mobility means and modular building, thus creating synergy effects. Core to this approach is the development of business models, which allow for and ensure the allocation and co-ordination of mobility services. Interfaces will be created for all compact vehicles and micro vehicles that extend their functionality both digitally and physically and thereby enable their ubiquitous connection to the envisioned services.
|
|
| 2. |
- Diewald, Stefan, et al.
(författare)
-
DriveAssist : a V2X-based driver assistance system for Android
- 2012
-
Ingår i: Mensch & Computer 2012. - München : Oldenburg Wissenschaftsverlag. - 9783486719901 ; , s. 373-380
-
Konferensbidrag (refereegranskat)abstract
- In this paper, we introduce the Android-based driver assistance system DriveAssist. The application allows the visualization of traffic information that originates from Vehicle-to-X (V2X) communication services as well as from central traffic services (CTSs) on the user’s smartphone. Besides giving the driver an overview of the traffic around her/him on a map view, DriveAssist can also run in the background and trigger warning messages for certain traffic incidents. The system design allows for augmenting any vehicle with a sophisticated audio-visual information system for V2X data and information, and thereby complements the vehicle’s on-board driver assistance systems at competitive costs.
|
|
| 3. |
- Diewald, Stefan, et al.
(författare)
-
Gamification-supported exploration of natural user interfaces
- 2012
-
Konferensbidrag (refereegranskat)abstract
- In this paper, we describe a novel concept for motivating users to explore applications using natural user interfaces in the automotive domain. Based on prior findings, it can be very hard for users to detect opportunities of action in such systems.Additionally, traditional “did you know?” hints seem to be ignored by many users today. As a countermeasure, we describe an approach that shall motivate users to explore natural user interfaces by using game elements. By awarding the user with badges and experience level-ups, we hope to create a stronger motivation that is at least maintained until the user is used to the system.
|
|
| 4. |
- Diewald, Stefan, et al.
(författare)
-
Mobile device integration and interaction with V2X communication
- 2012
-
Konferensbidrag (refereegranskat)abstract
- In a V2X environment, message processing and data visualization are key technologies influencing both real and perceived performance and usability of a system. V2X safety applications require frequent exchange of position information by means of so called Cooperative Awareness Messages (CAMs) or Basic Safety Messages (BSMs). These messages are generated, encoded and sent by all vehicles and corresponding actions have to be executed on receiving vehicles. The in-vehicle V2X system can be divided into several components. Our approach is based on a “two-component” system, consisting of a vehicle-integrated V2X communication unit (onboard unit, OBU) and a personal portable device (PPD), such as a smart phone or tablet PC. Subject of this work is the investigation how to distribute the workload and functionality between the two components. Our goal is to find a flexible solution that maximizes the overall performance and reliability of the system. We investigate and compare several message processing approaches and try to combine the strengths of both components. As a result, we present our final setup that can handle an up to 40 timeshigher message rate compared to other investigated solutions.
|
|
| 5. |
- Diewald, Stefan, et al.
(författare)
-
MobiliNet : A Social Network for Optimized Mobility
- 2012
-
Konferensbidrag (refereegranskat)abstract
- In this paper, we present our vision of MobiliNet. MobiliNet is a user-oriented approach for optimising mobility chains with the goal of providing innovative mobility across dierent types of mobility providers { from personal short range battery powered mobility aids over dierent types of public transports (e.g. buses, short distance train networks) to personal mobility means (e.g. car sharing). Our vision for MobiliNet is based on a social networklike system that is not limited to human participants. By including vehicles, corporations, parking spaces and other objects and spaces, the system could make traveling more comfortable and less stressful, and nally more ecient for the travellers. MobiliNet allows high-level trip planning, but also pays attention to other important details of the supported means of transportation. Especially for user groups with special needs, MobiliNet actively supports self-determined mobility. Thus enables again an active participation of this user group in in social life. Besides supporting travellers, the system could also create new business opportunities for transport associations and car sharing corporations.
|
|
| 6. |
- Kranz, Matthias, et al.
(författare)
-
The mobile fitness coach : towards individualized skill assessment using personalized mobile devices
- 2013
-
Ingår i: Pervasive and Mobile Computing. - : Elsevier BV. - 1574-1192 .- 1873-1589. ; 9:2, s. 203-215
-
Tidskriftsartikel (refereegranskat)abstract
- We report on our extended research on GymSkill, a smartphone system for comprehensive physical exercising support, from sensor data logging, activity recognition to on-top skill assessment, using the phone’s built-in sensors. In two iterations, we used principal component breakdown analysis (PCBA) and criteria-based scores for individualized and personalized automated feedback on the phone, with the goal to track training quality and success and give feedback to the user, as well as to engage and motivate regular exercising. Qualitative feedback on the system was collected in a user study, and the system showed good evaluation results in an evaluation against manual expert assessments of video-recorded trainings.
|
|
| 7. |
- Möller, Andreas, et al.
(författare)
-
A mobile indoor navigation system interface adapted to vision-based localization
- 2012
-
Ingår i: Proceedings of the 11th International Conference on Mobile and Ubiquitous Multimedia (MUM2012). - New York : ACM Digital Library. - 9781450318150
-
Konferensbidrag (refereegranskat)abstract
- Vision-based approaches for mobile indoor localization do not rely on the infrastructure and are therefore scalable and cheap. The particular requirements to a navigation user interface for a vision-based system, however, have not beeninvestigated so far. Such interfaces should adapt to localization accuracy, which strongly relies on distinctive reference images, and other factors, such as the phone's pose. If necessary, the system should motivate the user to point at distinctive regions with the smartphone to improve localization quality. We present a combined interface of Virtual Reality (VR) and Augmented Reality (AR) elements with indicators that communicate and ensure localization accuracy. In an evaluation with 81 participants, we found that AR was preferred in case of reliable localization, but with VR, navigation instructions were perceived more accurate in case of localization and orientation errors. The additional indicators showed a potential for making users choose
|
|
| 8. |
- Möller, Andreas, et al.
(författare)
-
MobiDics: Collaborative mobile e-learning for Teachers
- 2012
-
Ingår i: CEUR Workshop Proceedings. - 1613-0073. ; , s. 109-116
-
Tidskriftsartikel (refereegranskat)abstract
- We report on MobiDics, a mobile learning platform for professors, lecturers and tutors. In a survey with 100+ participants, we revealed that young, inexperienced teaching personnel at universities rarely use specific didactic methods to plan and structure courses. Such methods play an important role in learning processes since they, for example, activate students and contribute to more profound and sustainable learning experiences. Based on learning phases and social forms, MobiDics is able to suggest didactic methods that are adequate to a specific teaching situation. Parameters such as class size, teaching tool support, room constraints, etc. can additionally be incorporated. Learning settings can thereby be formalized and reconstructed based on the building blocks in form of didactic methods.MobiDics encourages and supports the targeted use of didactic concepts with the long-term goal of increasing the quality of university education. A particular focus lies on cooperative learning through community-based features. Users report on their experiences how well certain methods worked by a commenting function, and exchange tips and feedback with peers and experts. While user-generated content can comfortably be added through the web frontend, a mobile application allows dynamic adaption of didactic planning to contextual conditions such as the current lecture hall.In a two-step evaluation, MobiDics was adopted positively in the target group and its features highly appreciated. Our results motivate a further long-term study where we will evaluate MobiDics in the field.
|
|
| 9. |
- Möller, Andreas, et al.
(författare)
-
MobiMed : Comparing object identification techniques on smartphones
- 2012
-
Ingår i: NordiCHI '12. - New York : ACM Digital Library. - 9781450314824 ; , s. 31-40
-
Konferensbidrag (refereegranskat)abstract
- With physical mobile interaction techniques, digital devices can make use of real-world objects in order to interact with them. In this paper, we evaluate and compare state-of-the-art interaction methods in an extensive survey with 149 participants and in a lab study with 16 participants regarding efficiency, utility and usability. Besides radio communication and fiducial markers, we consider visual feature recognition, reflecting the latest technical expertise in object identification. We conceived MobiMed, a medication package identifier implementing four interaction paradigms: pointing, scanning, touching and text search.We identified both measured and perceived advantages and disadvantages of the individual methods and gained fruitful feedback from participants regarding possible use cases for MobiMed. Touching and scanning were evaluated as fastest in the lab study and ranked first in user satisfaction. The strength of visual search is that objects need not be augmented, opening up physical mobile interaction as demonstrated in MobiMed for further fields of application.
|
|
| 10. |
- Möller, Andreas, et al.
(författare)
-
Tool Support for Prototyping Interfaces for Vision-Based Indoor Navigation
- 2012
-
Konferensbidrag (refereegranskat)abstract
- Vision-based approaches are a promising method for indoor navigation, but prototyping and evaluating them poses several challenges. These include the effort of realizing the localization component, difficulties in simulating real-world behavior and the interaction between vision-based localization and the user interface. In this paper, we report on initial findings from the development of a tool to support this process. We identify key requirements for such a tool and use an example vision- based system to evaluate a first prototype of the tool.
|
|
