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Traditionally unmanned undersea vehicles (UUVs) have been large, complex and expensive. Development of UUVs has been driven by defense and commercial requirements. This has allowed for extensive research and development budgets and long development cycles. This paper briefly discuses these historic drivers and how this situation has changed. It focuses on a new compact affordable UUV. In 2015, several...
This paper presents a real-time, low-cost, wireless, AC and DC monitoring system based on an ATmega328P-PU microcontroller. The proposed system is composed by different client nodes, which have the task to measure the main electrical quantities involved in the system, and a server node that collects the data and send them to a display device. The system is well suited for a good accuracy monitoring...
Hardware-in-the-Loop Simulation is being increasingly used in verification and validation of embedded computer systems; as well as for rapid prototyping and validation of models. The numerous benefits of this technique and the possibility of widespread use is hindered by the high cost of the necessary infrastructure. The proposed solution is based on a PC executing the plant simulation and connected,...
Vision is a potent source of information, not just for humans, but for robots as well. Processing visual information is a computationally expensive task, one that is often difficult to accomplish in real-time on embedded hardware. In the broad field of visual research exists egomotion estimation, the process of determining self-motion from optical flow. Here we show a technological adaptation and...
In order to solve a series of problems about IT service management in Enterprise, such as lower efficiency and service quality, complexed business processes and communication patterns, huge static management data and dynamic control data, etc., an intelligence-awareness IT service management platform, which is based on the Cyber Physical System (CPS) for constructing smart Industry 4.0, is proposed...
In Internet of Things (IoT) world, there can be many sensors deployed in a system, thus their costs must be considered during the system design and material selections, in order to support massive production and deployment. Design-To-Cost (DTC) is an effective technique for this situation. In Model-Based Design (MBD), DTC cost estimates are preferred to be generated from models as one of the parameters...
This paper proposes a low complex hardware accelerator algorithmic modification for n-dimensional (nD) FastICA methodology based on Coordinate Rotation Digital Computer (CORDIC) to attain high computation speed. The most complex and time consuming update stage and convergence check required for computation of the nth weight vector are eliminated in the proposed methodology. Using the Gram-Schmidt...
Cameras and other sensors are increasingly deployed for private space monitoring applications such as home monitoring, assisted/enhanced living and child monitoring. Since these cameras capture highly sensitive information and transfer it over public communication infrastructures, security and privacy is a major concern. This work presents a secure camera device along with a secure data delivery and...
The paper presents a system that uses Laboratory Virtual Instrument Engineering Workbench (LabVIEW) software to monitor, and to control the state of an electrical machine depending on user imposed limits. In this system, the real-time variables of an electrical machine are measured and transferred to a controller (PC) through Data Acquisition Card (DAQ). The NI USB 6009 DAQ is selected for this project...
Poor air quality in urban areas is becoming an important problem that needs to be addressed. This paper presents the system architecture of project Urb@nEcoLife for compilation of environmental data using low-cost data sensors. Although there are several proposals dealing with sensor networks, most of them focus on solving partial problems. Urb@nEcoLife is a comprehensive proposal that develops a...
This paper presents the design for a prototype tactical dynamic spectrum access (DSA) mobile ad hoc network, where the network is organized into clusters operating on a single frequency. The frequency may be changed autonomously by the network in response to jamming or interference, after some frequency switching delay. The network node design is implementable on a software defined radio (SDR), such...
Combined with popular Internet of things and virtual reality technology, this paper has developed a set of intelligent agriculture, intelligent home in one of the intelligent manor sand table demo system. System test shows that the system can effectively simulate a number of intelligent agriculture, intelligent home in the practical scene. In the intelligent agricultural system part of the use of...
The issues of software and hardware development are considered of data logging into systems of testing complex objects. The describes the architecture of a system for testing complex scientific-technical objects. In the list of original elements of the concept of building highly reliable, fast-reconfigurable interactive test monitoring and control systems: — using of original technology of representation...
In recent years, dramatic evolution of network has been introduced in the home environment that enables digital technologies to be used as the appliances in the home. These devices can be remotely accessed and controlled using existing network infrastructure, thus allowing a direct integration of computing systems with the physical world. A part of this network evolution is Internet-of-Things (IoT),...
During recent years Riga Technical University continuously modifies its teaching processes to comply with the Bologna process. Previous study plan and course's content of Riga Technical University did not always provide good interaction between courses and successful synergy of student skills, obtained from different practical and laboratory works. This paper shows how recent scientific achievements...
Shorter innovation cycles along with the demand for individualized, high-quality products pose high challenges on today's automated material flow systems. These systems, suitable for producing bulk goods, but inflexible in case of product changes, need to react flexibly to unplanned configurations. Especially in the software domain retroactive adaptations are tedious work and prone to errors. By deploying...
Response time of the emergency services is vital in drastically improving the chances of survival and of meaningful recovery for the affected individuals in emergency situations. Often precious time is often lost for emergency services due to traffic, especially at traffic intersections. What we propose is a dynamic solution to the aforementioned problem using an intelligent network of smart traffic...
Internet-of-things (IoT) paradigm exploits the Distributed Measurement System (DMS) to execute measurements. Each node of the DMS has computational and communicative capabilities, and can be equipped by sensors and measurement instruments. Therefore, it can be assumed as Smart Object (SO). The availability of mobile SO (MSO) (cars, smartphones, drones) is taken into consideration in the research to...
The article presents the results of studies of the physical security system in the infrastructure facility of a region. The following results have been obtained: structural and functional decomposition of the physical security system for the regional infrastructure has been performed; engineering solutions for the implementation of the standard functions for the subsystems of the research object have...
The determining problem of several fracton mixture srtucture of materials grinding in the gas jet mill is considered. The problem is solved by comparing the standard deviation of the standart power spectral density of acoustics signals of individual fractions and of the mixture ones.
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