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Wireless Sensor Networks (WSNs) constitute a networking area with promising impact in the environment, health, security, industrial applications and more. Each of these presents different requirements, regarding system performance and QoS, and involves a variety of mechanisms such as routing and MAC protocols, algorithms, scheduling policies, security, OS, all of which are residing over the HW, the...
In the era of technology expansion, the digital devices are made to achieve high resolution signal acquisition, producing a large amount of digital data. This is a common issue in sensing systems dealing with radar signals, multimedia signals, medical and biomedical data, etc. The acquisition process is done according to the Shanon-Nyquist theorem with the sampling rate which is usually at least twice...
One of the important directions of academic activity of the University on space subject is work in the area of theory, technology and practice of development of data processing means for Earth's remote sensing from space systems of different purposes [1] and preparation of highly qualified specialists in the mentioned area [2, 3]. For this purpose previously established academic centers and laboratories...
In numerous mobile applications involving complex video, image, signal, communication or security processing, massive parallelism is mainly in the form of data-level parallelism (DLP). However, the sorts and amount of DLP parallelism in applications vary due to different computational characteristics of applications. On the contrary, most of the processors today include single-width SIMD (vector)...
While the future importance of cyber-physical systems is widely acknowledged, there is surprisingly rare discussion about the design of operating systems for these kinds of systems. We present an extended view on the low-level abstractions to be offered by the operating system to applications. The central idea is the treatment of all relevant cyber-physical entities as task execution resource, which...
A cyber physical system for smart cloud-driven traffic control is proposed. It is an intellectual (smart) road infrastructure for monitoring and control of traffic in real-time through the use of global systems for positioning and navigation, mobile gadgets and the Internet in order to improve the quality and safety of vehicle movement, as well as for minimizing the time and costs when vehicles are...
The main innovative idea of the proposed cyber physical system is step-by-step transfer of traffic lights from the ground to a virtual cloud space for vehicle management, equipped with a mobile gadget or computer, which displays on the screen map, route, coordinates of the road user and real traffic signals. The aim of this paper is to propose and discuss the formal modeling and technical realization...
An new invention or innovation (in the form of a device) is usually presented by technical drawing. The development of information technology in recent years has led to the fact that it is relatively easy present the invention by hologram also. This paper proves the assumption that the appearance of mechanical parts in the form of a hologram provides better visual perception than the technical drawings...
Traditional methods rely on Static Timing Analysis techniques to compute the Worst Case Response Time for tasks in real-time systems. Multi-Core real-time systems are faced up with concurrent task executions, semaphore accesses, and task migrations where it may be difficult to obtain the worst case upper bound. A new three staged probabilistic estimation concept is presented. Worst Case Response Times...
Distributed Processing Systems (DPS) take sophisticated tasks as input, and process them in a distributed manner using spread resources. In this paper, we evaluate DPS implemented on low-level System-on-Chip (SoC) interconnection architectures: mesh, concentrated mesh and fat tree. We propose autonomous algorithms for nodes and routers and define efficiency metrics that are used later for evaluation...
This paper discusses the implementation of continuous speech recognition system for low-cost bare-metal platform. The applied algorithms are well known, however they are optimized for constrained embedded environment. System is very flexible since it uses publicly available acoustic and language models, and dictionaries, and as a result of recognition produces readable ASCII string through serial...
The paper suggests a generic model for compilation and definition of explicit parallelism in embedded computing systems (ECS), based on clustering. It also describes a rule-oriented production model of an expert system for analyzing implicit parallelism that employs a criteria-based fuzzy-set approach, the number of such criteria equal to the number of ECS modules, and also on the microprogram's memory...
Integrating or creating new applications (services), using existing data involves changing existing applications (services). For better usage, there is a need to export data as basic services (SOA approach). Representational State Transfer (REST) works with resources instead of operations, offering full web-scale interoperability and scalability advantages while exchanging information between applications...
FPGAs are becoming more popular in the domain of safety-critical applications (such as space applications) due to their high performance, re-programmability and reduced development cost. Such systems require FPGAs with self-detection and self-repairing capabilities in order to cope with errors due to the harsh conditions that usually exist in such environments. In this paper, a new dynamic fault recovery...
Modern small-scale electronic systems based on ARM-processors provide surprising computing power and allow implementation of complex algorithms that usually are not applied in automation engineering. In this work a Hamiltonian-based optimal path control for a dynamical system of fourth order is implemented. It turns out that even the controller design that requires advanced numerical computation can...
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