Software & Systems

Articles of journal № 2 at 2013 year.

Order result by: Public date | Title | Authors |

1. Анализ и автоматизация процессов управления и контроля за распространением вредителей и болезней какао [№2 за 2013 год]
Authors: F. Lempogo, W. Brown-Acquaye, Окаи Д.Э.Я., A.N. Chokhonelidze, Lempogo F.0., Brown-acquaye W.0., Okai G.E.
Visitors: 8874
The paper analyses the process of complex application development that uses GIS-technologies to manage and control cocoa pest and disease spread in a West African country: Ghana. The complex program captures information about detected pests and diseases. This information can be examined by agricultural extension officers on farms, warehouses and plantations of different zones and districts. This information is also published on the web and can be accessed by stakeholders (Govern-ment Ministries and Agencies, non-governmental organization etc.) through an interactive web-based GIS interface (interac-tive map).

2. Tactical chracteristics of weapons and military equipment samples life cycle costing [№2 за 2013 год]
Authors: Arepin Yu.I., Dopira R.V., Зосиев В.В.
Visitors: 12526
The article describes methodological approaches to military products life cycle costing and the variant of graphical decision support when managing the creation of complex engineering systems based on B-splines. The experience of development planning of weapons and military equipment determines the cost forecasting methods. They can be used de-pending on basic data structure. The specific feature of these methods is forecast accuracy. It affects their applicability in certain cases when determining the cost of test piece.

3. Methodical issues of analysis and design of advanced hardware automated system [№2 за 2013 год]
Authors: Arepin Yu.I., Зосиев В.В.
Visitors: 5859
The article describes methodical issues of analysis and design of hardware automatic control system (ACS) of Russian Federation uniformed service. Three primary scientific targets of hardware ACS analysis and design are emphasized, their formalized statements are shown. Measures of efficiency that can be used while estimation of hardware ACS alternative development are considered. There are proposals to achieve chosen targets at the stages of hardware ACS life cycle. The au-thor presents grounds of complex of characteristics determining the efficiency and quality of hardware ACS and gives rec-ommendations how to use rational particular system quality indicators.

4. Trainer creation for radio-technical troops subdivisions [№2 за 2013 год]
Authors: Arepin Yu.I., Момот Н.Б., Долгий В.А., Коваленко А.И.
Visitors: 10824
Simulators are the basis of current combat training for combat units of technical troops subdivisions. These simulators are represented by automation facilities sets and inbuilt software and hardware complexes in relevant radar station. Consequently investment of trainings is high because of the need to activate relevant prototypes of weapons and military equipment while carrying. Besides, carrying of complex trainings on inbuilt simulators is rather difficult. So self-contained simulator creation for technical troops subdivisions is relevant objective. A simulator (in simulated situation) must be in compliance with military equipment prototypes. This article describes a structure and general capabilities of a self-contained simulator «Test» created by R&D Institute «Centrprogrammsystem» (Tver) for technical troops subdivisions. The simulator «Test» provides carrying out of all types of trainings (individual, independent, complex) for combat units of radar-location and radio-technical squadrons fitted with modern digital radar stations. As for structure, the simulator is made as local area network which consists of server, automated working station (AWS) of education chief, automated training working station of radar operator and automated training working station of automa-tion facilities set operators. The AWS of education chief helps to imitate functions which provide educational trainings prepa-ration, training process control, training performance measurement, trainee scorecards maintenance and gradebook mainte-nance. Other AWS in the simulator structure imitate work principles and information models that are in compliance with princi-ples and models of real issue type. It simplifies the transition from a simulator to military equipment. The simulator «Test» has gone through official test and is recommended to batch series line production.

5. Design paradigm and interface in hybrid forgings Cad [№2 за 2013 год]
Authors: Arzamastsev S.V., Гагарин П.Ю., Konovalov A.V.
Visitors: 11576
This article describes new approaches for creation of forgings local CAD based on a design paradigm which unites all designing objects in the general project on the basis of parent object, a detail. The design organization of system al-lows adjusting the accounting and the opportunity of a manipulation with set of forging variants and technological processes for a detail of the same designation. Such situation often occurs in short-run and single-part production where engineering changes should be quickly processed by designing system. The developed design paradigm raises quality of technological processes design and serves as a platform for embedding local CAD in the integrated control system of product life cycle. Unlike technological processes design systems of mechanical treatment, forgings CAD is difficult to duplicate on different enterprises in virtue of specificity of forging operations and the forge manufacture organization. The hybrid approach of sys-tem construction is applied to increase intellectuality of forging CAD and to simplify its adaptation to concrete industrial conditions. In particular the interface of hybrid CAD is described. On its basis forging and technological processes designing will take into account saved up know-how of the concrete enterprise.

6. An experience in hardware implementation of functional modules of information security measures on variable logic integrated circuits [№2 за 2013 год]
Authors: Архангельский А.В., Торопченов Н.Ю.
Visitors: 12123
The article describes practice in hardware implementation of basic functional systems of information security measures on PC. There is a brief overview of technical characteristics of variable logic integrated circuits f.Altera. The article gives variants of functional modules architectural construction. It also considers the variant of the Ethernet secure network hardware implementation. The aspects of cryptographic algorithm hardware implementation are described. The article sug-gests the author\'s method of implementing a substitution block of semi-fixed keys. It also suggests the author\'s method of de-veloping a pool of random numbers based on an analog sensor of random numbers. There are author\'s suggestions on pro-spective lines of development concerning hardware implementation of information security measures.

7. Distributed simulation architechture design when creating Navy training set [№2 за 2013 год]
Authors: Bazlov A.F., Risunkov V.B., Sokolov S.N., Struchkov A.M.
Visitors: 8381
The need of ships and submarine training facility which considers exploitation distinctive features and combat employment of particular weapons and military equipment test pieces is increasing. It determines integration processes ori-ented to combining separate task trainers and warfare simulators in training sets which work under one command in one tac-tical environment. The staff of R&D Institute «Centrprogrammsystem» has developed an aggregate approach to distributed simulation architecture designing for such systems as software simulators of weapons and military equipment, task trainers and warfare simulators. There is the main problem when integrating training aids with different functional purpose into train-ing set. It is a construction of common information simulation environment and common administration based on distributed simulation architecture. A computing simulation complex is the main element of a training set which determines distributed simulation system architecture for common information simulation environment construction.

8. About the program of electric power losses calculation in radial electric mains [№2 за 2013 год]
Authors: Balametov A.B., Khalilov E.D.
Visitors: 16849
The magnitude of the process energy consumption is influenced by many factors: the circuit configuration of distribution networks in the billing period and the parameters of its elements; circuit transmission lines and the nature of the connection load, parameters of the network mode, the interaction of different electricity streams, incompleteness, inaccuracy, ambiguity of the initial information, the degree of reactive power compensation, power quality, the actual state of electric mains. The task of normalization is the highest possible valuation of factors significantly affecting the value of the technolog-ical standards of energy consumption. There are methods and algorithms of losses modeling realized in the form of in DELPHI program system for estimating the error rate of the square form by simulation modeling electrical loads diagrams for the duration of a continuous function allowing to improve the accuracy and flexibility of the energy losses modeling in distribution electric mains. The article of-fers dependences for shape factor of exponential dependences load diagrams. Simulation takes into account the errors in the calculation of the loss of the head portion parameter uncertainty associated with the measurements of electric power supply, voltage, coefficient of the head section load curve and specifying resistances depending on the ambient temperature. Software system is operated to plan and regulate the energy losses for electricity distribution networks of Azerbaijan power system.

9. Methodology of creation of knowledge bases control systems for intelligent systems of decision support [№2 за 2013 год]
Author: Башлыков А.А.
Visitors: 8233
The methodology of creation of knowledge bases control systems for intelligent systems of decision support is considered. The architecture of knowledge bases control systems and all its components is defined. The offered architecture of control systems is considered as development of architecture of knowledge bases control systems. Questions of offered ar-chitecture orientation to existing formalism of knowledge models creation and to methods of automatic decisions search are stated. The descriptions are based on a formalism of semiotics knowledge model which is interpreted as a multimodel struc-ture of knowledge representation. The multimodel component belongs to semiotics model and includes: semantic networks, frames, formal models, production, computational models. There are inductive and deductive components of knowledge de-scribed by semiotics model. The inductive component includes means of knowledge description. These means help system users to define problems, describe multimodel knowledge structure of subject domain, logic of the problem solution of expe-ditious decision-making. The formalism of language of knowledge definition is one of these means. The main feature of a deductive component of semiotics model – representability of knowledge of management purpose achievement means in it. This knowledge looks like the ordered set of procedures, models and ways of their using (management on models) for the so-lution of tasks in multimodel knowledge structure. The formalism of knowledge manipulation language is taken as a basis of a deductive component, it is a mean of statement and finding solutions for solvable problems of decision support. There is a notion of concept of task resolvability in a knowledge model. The description of determination methods of task resolvability and planning of its decisions search processes is provided in semiotics knowledge model. Stages of finding solutions process-es planning are defined: finding the algorithm of problem solving; algorithm interpretation for receiving the result. Scopes of knowledge bases control systems are described.

10. Tests collection optimization for experts qualification testing [№2 за 2013 год]
Authors: Bessarabov N.A., Kondratenko T.N., Timofeev D.S.
Visitors: 9438
The article considers the process of pedagogical tests system creation using criterion-referenced approach. The dependence of the estimation accuracy of latent parameters using the Rasch model from probabilistic characteristics of subjects was elaborated. A model of the test specialists description is proposed as asymmetric with respect to zero allocation in a positive direction. The task of minimizing average variance of level of testee expertise estimation in reference to tests har dness is completed. The optimal distribution of task’s easiness for a given distribution of level of expertise was elaborated. The optimal distribution of the tasks for a given distribution of level of expertise was found. The dependence of the optimal distribution of test’s tasks as a deviation from the uniform distribution was found. There is a dependence of tests error variance from the level of testee expertise when uniform and optimal distribution of test’s tasks. The dependence of test’s tasks optimal distribution for a group of subjects with level of expertise symmetrical distribution around zero was elaborated. To minimize the error variance it is necessary to construct a simple test below the average level of testee expertise and more complex tests than the average level. An interval of level of testee expertise distribution should be doubled and aim for uniform distribution.

| 1 | 2 | 3 | 4 | 5 | 6 | 7 | Next → ►