The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Different assistive technologies are available for deaf people (i.e. deaf, deafened, and hard of hearing). Besides the well-known hearing aid, devices for detection of sound events that occur at home or at work (e.g. doorbell, telephone) are available. Despite the technological progress in the last years and resulting new possibilities, the basic functions and concepts of such devices have not changed...
A multitude of assistive devices is available for deaf people (i.e. deaf, deafened, and hard of hearing). Besides hearing and communication aids, devices to access environmental sounds are available commercially. But the devices have two major drawbacks: 1. they are targeted at indoor environments (e.g. home or work), and 2. only specific events are supported (e.g. the doorbell or telephone). Recent...
Laboratories and project work are widely used in the engineering curricula around the world. Such hands-on trainings allow the students to learn hard-as well as soft-skills and can be used to prepare them for the work in the industry. In microelectronics education laboratories are often offered. For such a laboratory the authors present a set-up to teach microelectronic design using a top-down design...
Auditory cues provide people with information about events outside of their field of view and can so help detecting potential hazards. People with severe hearing loss, i.e. hard of hearing, deafened, and deaf people, often cannot or can only partially benefit from auditory cues, which can lead to a lowered quality of life. Even though hearing aids are available, not everyone can benefit from them...
The identification of sounds is an important tool in ubiquitous and context aware applications. Today's smartphones are capable of performing even computational intensive tasks, like digital signal processing and pattern recognition. In this contribution an implementation scheme and a framework for sound recognition for smartphones are presented. A basic sound recognition flow consists of preprocessing,...
In this contribution, a concept of an assistive technology for hearing-impaired and deaf persons is presented. The concept applies pattern recognition algorithms and makes use of modern communication technology to analyze the acoustic environment around a user, identify critical acoustic signatures and give an alert to the user when an event of interest happened. A detailed analysis of the needs of...
Sounds are an important source for events in the environment. They convey information about events even when these are not in line of sight. This information can warn a person that a danger is occurring. E.g. a pedestrian can estimate the distance of a vehicle and if the vehicle is approaching or departing. In this contribution a mobile sound classification system based on a smartphone running the...
Genetic algorithms are a common option to solve optimization problems. In this paper a decentralized approach to calculate a charging schedule for electric vehicles based on a genetic algorithm is presented. It is predicted, that the number of battery electric vehicles (BEV) and plug-in hybrid electric vehicles (PHEV) will increase to 5 million vehicles by the year of 2020. The increase of electric...
Electric vehicles today are getting more usable. Due to the progress in accumulator technology and power electronics, modern electric vehicles offer performances allowing using them in daily life. It is forecasted that the number of battery electric vehicles (BEV) and plug-in hybrid electric vehicles (PHET) will increase to 5 million vehicles by the year 2020. The increase of electric vehicles will...
Mobile robots evolved significantly in the last decade. Reasons for this are the increase in computing power and the advances in sensory. A state-of-the-art robot uses many different sensors to perceive its environment. Among these are visual sensors - from simple photo detectors to sophisticated camera systems. For the evaluation of visual sensors' data, a significant amount of processing power is...
In larger cities, emergency vehicles of fire services, emergency services and police are often impeded by other road users. Although the emergency vehicles use visual and acoustic warning signals to become noticeable, they are not always perceived soon by other road users. This can lead to dangerous traffic situations and unacceptable delay of the emergency vehicle. To address this issue, and raise...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.