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The article shows the design and implementation of a gesture control system, which determines the gesture from the movement of the hands. The presented gesture controller system can be built relatively easy from cheap components, so it is ideal development goal in case of a students' project also in the field of project based learning. The movement detected with distance measurement sensors, and the...
The paper presents a prototype for a two way peer to peer communication and advanced human computer interface (HCI). This could be in the form of a wearable ring equipped with laser, infrared and other radio capabilities that enable the human beings communicate with people and other smart devices in a much natural way. The ring ensembles two way peer to peer laser communication, NFC (Near Field Communication)...
The main idea behind Elders-Up! project is to bring the valuable experience of senior adults to start-ups and small companies [1]. The Elders-Up! project will build an ecosystem for collaboration on which European seniors' labour activities continue after retirement, as well as their productivity and usefulness to the society. On the other hand, small companies struggle to create their own production...
In this paper, the design and development of an Unmanned Aerial Vehicle suitable for indoor navigation and an innovative human-computer interaction interface is presented. More specifically, details pertaining to hardware design and software development of the entire UAV are presented. It should be highlighted that the UAV is developed from scratch rather than purchased off the shelf. By virtue of...
In 1986, this author presented a paper at a conference, giving a sampling of computer and network security issues, and the tools of the day to address them. The purpose of this current paper is to revisit the topic of computer and network security, and see what changes, especially in types of attacks, have been brought about in 30 years. This paper starts by presenting a review of the state of computer...
Keyboard, mouse as fundamental input devices of computer systems, have changed traditional input behavior of human beings & writing experiences. However, handwriting, painting are still indispensable communication styles. In recent years, touch screen has become a prevailing human computer interface on many kinds of digital devices, which makes it possible for people using a pen to take notes...
The functional diagnosis expert system based on knowledge base in the form of neuro-fuzzy network was proposed in this paper. Current values of diagnostic parameters are measured by sensors. The hybrid expert diagnostic system with neuro-fuzzy network knowledge base supports decisions in the situation when the diagnosis algorithm is not known and is formed from the initial data in the form of production...
Autonomous underwater vehicles (AUVs) operate in unknown underwater environments and must be able to avoid submerged obstacles such as cliffs, wrecks, and seabed changes. This paper proposes a methodology for obstacle avoidance by AUVs that are equipped with forward-looking sonars (FLSs). The data collected from two FLSs placed in horizontal and vertical orientation are processed in real time to provide...
The development of intelligent systems to support maritime situation awareness is the main goal of the SEAGULL project. By equipping unmanned aerial vehicles (UAVs) with different types of optical sensors we target an intelligent maritime surveillance system. In this paper we present experiments performed with an hyperspectral camera to detect oil spills. We have developed a detection algorithm that...
Wireless Multimedia Sensor Networks (WMSNs) are composed of the number of video, audio, and scalar sensors which the proposed method is investigated on sensors equipped to cameras. In this paper a new method distributed is introduced for enhancing the environmental multimedia sensing coverage and recording in wireless multimedia sensor networks. In the proposed method nodes are prioritized and selected...
Detecting state change processes of appliances is very useful when optimizing a system's energy management. The term “state change” implies an appliance shifts operation from one state to another; the simplest example is the process in which the appliance switches between an “on” and “off” state. This paper proposes a multilevel threshold detection method that can provide a way to detect state changes...
The exponential nature of the technological progress, along with the need for smaller and mobile computers led to the emergence of embedded devices like Raspberry Pi or Beaglebone Black. The main difficulty in using these embedded devices is that the device must be physically connected to a regular computer in order to be programmed to do useful work. This thesis presents a platform named Wyliodrin...
Mobile and ubiquitous technologies offer unique potentialities to develop environmental education activities. This paper presents the preliminary results of a project developed with children aged between 6 and 12, which explored the vine cycle over one year, visiting farms in the Dão vineyard area. Mobilizing a framework that integrates authentic and meaningful learning with situated cognition, it...
Visually Impaired (VI) and blind people suffer from reduced mobility, as they cannot detect the terrain and their environment. They always need assistance and walking support systems in their daily life. Solutions have been proposed many decades ago and are rapidly improving nowadays due to the technology evolution and integration. A large number of assistance aids have been deployed in real life...
Currently, cloud computing offers flexible, dynamic and cost effective computing outsourcing, but it limits these economic and operational benefits to non real-time and non safety-critical systems. This is because of the lack of alternative control, supported by current cloud infrastructures, in case of a broken cloud link. While steps have been taken in using cloud infrastructures for soft real-time...
Time delay estimation is the basis of the localization algorithm for partial discharge (PD) based on time difference in GIS, and it is the key to the accuracy of localization. In this paper, the theory of fractional Hilbert transform for time delay estimation is described. Based on fractional Hilbert transform, a method for estimating the time delay of GIS ultra high frequency partial discharge is...
Software-defined radio (SDR) is used in several areas, such as the verification and implementation of radio prototypes. The SDR environment is generally configured with an analog-to-digital converter (ADC) and a personal computer (PC). However, since ADCs and PCs are fixed configurations, reconfigurations are needed in order to respond to different data sources and computing environments when the...
This paper is a part of work on the attempt to implement the continuous control system which dynamically derives the control law during its operation, on basis of a model-based control algorithm. The measurements obtained from the sensors are dynamically included or excluded depending on the availability of individual sensors. The prototype application was developed in the JADE environment, and its...
The use of plasmonic nanostructures for enhancing light/matter interaction has been of great interest lately for several applications. In this talk, a new platform based on mode engineering in plasmonic nanoantenna arrays for strong light-matter interaction (compared to conventional plasmonic structures) is presented. By combining lattice plasmon modes with local surface plasmon polaritons in these...
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