Software & Systems

Articles of journal № 4 at 2013 year.

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41. Software pipelining of loops for a floating point accelerator in the Komdiv128-RIO processor [№4 за 2013 год]
Authors: Вьюкова Н.И., Galatenko V.A., Самборский С.В.
Visitors: 10708
The paper presents a method of software pipelining for a specialized floating point accelerator in the Komdiv128-RIO processor with MIPS architecture. Programs for the accelerator may be developed in Assember only. Implementation of a high level languages compiler is impossible due to architectural peculiarities of the accelerator. Manual writing of efficient computational loops for the accelerator is complicated. A programmer should keep in mind miltiple factors, such as lack of hardware delays on unready input data and complicated structure of the register file. The purpose of the work is to develop an instrument for automated software pipelining of loops for the specialized accelerator. A programmer may write quite simple internal loops which implement the calculations correctly but probably inefficiently. The loop is then transforming to a pipelined one with maximal calculating efficiency or close to the maximal one. Use of a precise approach based on integer linear programming (ILP) methods allows achieving the optimal efficiency of a code. The article is focused on specific points of the ILP task formulation connected with peculiarities of the accelerator architecture. The authors discuss the issues of exact calculation of the number of required registers as well as a problem of reducing the unroll factor of pipelined loops.

42. Software implementation of slabs automatic identification system [№4 за 2013 год]
Authors: Провоторов А.В., Орлов А.А.
Visitors: 10353
The structure of hardware and software complex (SALI) for slabs moving tracking between warehouse and main manufacture equipment is described in the article. It considers automatic metalrolled manufacture complex production monitoring. Distinctive feature of the system is algorithm of automatic slabs identification (bulky metal units) which allows identifying the moving object with high accuracy. It can make the workers of crane free from their routine of slab number or code identifying. One of the logic units of algorithm is automatic step-by-step product label identifying. The result of label detection steps is calibration of camera moving mechanism position and zoom for getting primary hi-res image of load with label, its analysis, label scanning and recognition. There are the results confirming efficiency and reliability of the method.

43. Software system for ionospheric measurements data processing [№4 за 2013 год]
Author: Skripachev V.O.
Visitors: 20532
The authors propose a software system to determine the ionosphere parameters by radio probing means. This system helps to get information about environment parameters in order to further diagnose the disturbances, both natural and artificial character, and to specify the known ionospheric models. The developed software system is designed to restore the profiles of the electron density in the ionosphere using signals from navigation satellites GLONASS/GPS. Object-oriented programming was used to develop the system. This reduces the time develop new classes, inheriting them from already existing in used software libraries. The object-oriented approach has been implemented when developing the code responsible for the total electron content calculation according to signals characteristics of navigation spacecraft. Therefore interaction between system blocks is also performed based on object data structures. Prospects of future work suppose building the capacity of the represented software system using the software products for ionospheric sounding data processing, and that data is obtained by vertical sounding of the ionosphere and incoherent scattering techniques.

44. Revolutionizing OF dielectric constant OF A silver nanofilm under voltage [№4 за 2013 год]
Authors: Крыжановский Б.В., Палагушкин А.Н., Прокопенко С.А., Сергеев А.П., Меликян А.О.
Visitors: 9134
The surface plasmon resonance (SPR) technique is used to detect a considerable change of the dielectric constant of a silver film when a constant voltage is applied to a MDM nanostructure. The structure looks like a capacitor with Ag films 49 nm and 37 nm thick as capacitor plates and a 177-nm Al2O3 film as the dielectric. The effect is a significant change of light reflectance when applied voltage is up to 30 V across the electrodes. A good match between the theory and experiment can be achieved with the assumption that the optical properties of silver change differently at the cathode and the anode, and the Al2O3 dielectric layer begins absorbing the light. The refraction of the cathode silver layer is shown to become zero when the voltage is greater than 16 V

45. Development of agent behavioral adaptive models for multi-agent system of telecommunication enterprise management [№4 за 2013 год]
Authors: Gimarov V.V., Гимаров В.А., Dli M.I., Ivanova I.V.
Visitors: 13191
The article considers a market as an open socio-economic system involving a large number of interacting elements. Market research and analysis requires processing massive amounts of statistical data and information support to forecast marketing situations in order to select strategies and decision-making for their implementation based on formalized knowledge. At the same time, known methods based on using analytical expressions and games theory, describe the state of the elements statistically excluding changes in their behavior and interaction. The dynamics of the system behavior under conditions of uncertainty, risk, illegible or incomplete information is mostly unpredictable. That is why to make effective management decisions it is appropriate to use the agent-oriented approach to the description and simulation of the system elements interaction. These elements alter the properties and behavior depending on the environment. One of the fundamental problems of multi-agent systems construction is the organization of agents’ interaction. If there are restrictions to use procedural approaches, declarative languages are preferred for interaction of agents. The paper proposes an ontological domain model of agent interaction that defines a set of communicative acts. It also shows a model of "request" act in the notation of colored Petri nets. The adaptability of the system of agents' behavior is achieved due to the classification of indicators of external and internal environment using neural networks and selecting the appropriate behavioral strategies.

46. Design of high reliability multiprocessor modules based on high-performance RapidiO interconnect architecture [№4 за 2013 год]
Authors: Bobkov S.G., Еремин А.А., Кондратьева Н.В., Сердин О.В.
Visitors: 8307
The paper contains the description of general approaches for designing and creating high-performance modules tolerant to the impact of external radiation factors and extreme thermal operation modes. The modules are based on the modern System-on-a-Chip (SoC) with technology-specific rules 180 nanometers or less. The article introduces the realization of these principles in the multiprocessor CP-RIO-64 module based on a chip (SoC) – 1890VM6IA. A new hardware-software technique for reliable program execution and a distributed control system for recovery are realized in the high-performance CP-RIO-64 module with RapidIO Interconnect Architecture. The RapidIO Interconnect Architecture is designed to be compatible with the most popular integrated communications processors, host processors and networking digital signal processors. It is a high-performance, packet-switched, interconnect technology. High Speed RISC Processor CP-RIO-64 module contains a RapidIO switch, several Systems-on-a-Chips, DDR SDRAM with ECC Support, Nand Flash memory blocks. The CP-RIO-64 module belongs to computer facilities. It can be used to create digital computer systems, which are carrying out real time data receiving by high speed RapidIO bus, preprocessing the signals (the space-time spectral analysis, the frequency ranges formation, the filtration and threshold detection) and also secondary, tertiary and general information processing including data exchange with other devices and systems.

47. Development of the software environment to support the systems functional structure analysis in the view of holistic property [№4 за 2013 год]
Authors: Butenko D.V., Бугрий Р.С.
Visitors: 8647
One of the fundamental systems’ attribute is a property of integrity. Description of its functional structure allows understanding that the system is very stable. The structure can be presented as binary oppositions that reflect the opposing structural relations between functional components and subsystems concepts. The main idea when building a binary opposition is the using invariant pairs of operations proposed by R. Koller in his method of design. Based on theoretical research a software system of technical systems analysis in the view of property of integrity is proposed. This system consists of three modules: constructive and functional analysis, Ishikawa diagram construction to consider a contrary-functional pairs of the system, writing a report using system expert evaluation regarding a property of integrity.

48. Optimal routing using the network congestion criterion [№4 за 2013 год]
Authors: Dmitriev G.A., Margolis B.I., Muzanna M.M.
Visitors: 11789
The article considers the network information flow model with reroute messages for any number of switching nodes and links. There are criteria for optimizing with time-delay messages and the maximum network congestion, restrictions for the capacity of the channels and the conservation of flows in the network. An example of a network consisting of five nodes and seven channels of communication is described. It is shown that the problem of optimal routing refers to non-linear optimization of several variables function with inequality constraints and equations. Inequality constraints are formulated for channel capacity and the type of equations for the conservation of flows in the network nodes according to their division into input node, output node and intermediate nodes. Based on the standard fmincon function, a program as developed in MatLab. It allows finding the optimal distribution of flows in the network consisting of an arbitrary number of nodes and links according the topological structure of the network, the input flow and capacity of channels. The article shows the results of the optimum flow separation calculation using criteria of congestion and delays for the considered example. The analysis of changes in the criteria of maximum load at different intensities of the input stream is made. It is shown that the determination of the optimum distribution of channels load while separating each channel to any number of lines can be done using analytical optimization techniques. There are results of the calculation of the optimum flow separation on two links by load for the considered example.

49. Robust intelligent control based on quantum computing technology [№4 за 2013 год]
Authors: A.G. Reshetnikov, Керимов Т.А., Ulyanov, S.V.
Visitors: 12387
The article describes the technology of robust intelligent control system design based on quantum fuzzy inference in two versions: using remote object connection and using verified mathematical model. Developed design methodology is used based on knowledge self-organization. It improves the robustness of intelligent control systems in unforeseen situations. The information sources for fuzzy controllers design are devided into two types: the first includes inaccurate mathematical model (with sub-definite parameters) of control object, and the second is based on the process of measuring the teaching signal from the real control object. A comparison of simulation and experimental results for physical test of PID controller, fuzzy controllers and quantum fuzzy controllers with different types of correlations is considered. The efficiency of using the quantum fuzzy inference to improve the robustness of intelligent control in emergencies management situations is confirmed.

50. Automatic continuous speech recognition system for the tatar language [№4 за 2013 год]
Authors: Хусаинов А.Ф., D.Sh. Sulejmanov
Visitors: 10442
The paper describes speech analysis system for the Tatar language. An approach to creating automatic phonetic transcription system for Tatar texts has been developed and implemented. This system is based on acoustic rules for the Tatar language. These acoustic rules have been converted to a formalized form using developed programming tool. The two levels analysis procedure has also been developed in order to create speech recognition algorithm, these levels are: acoustic (phonemes) level, linguistic (words) level. Phonemes level consists of acoustic models for 57 Tatar phonemes, each of this phonemes is represented by a hidden Markov model. To train each of specified statistical model 5 hours speech corpus has been recorded. Additionally, an algorithm to automatically create phoneme-level annotation of this corpus has been developed and applied. Finally, a Tatar speech recognition algorithm has been implemented based on developed programming tools and acoustic models. In total, the proposed system has shown 92% word recognition correctness in test speech subcorpus.

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