DOI: 10.14489/vkit.2017.09.pp.038-045

Гридин В. Н., Анисимов В. И., Ахмад А. Д.
АВТОМАТИЗАЦИЯ РАСЧЕТА ЧУВСТВИТЕЛЬНОСТИ СХЕМНЫХ ФУНКЦИЙ К ВАРИАЦИИ ПАРАМЕТРОВ И ВНЕШНИХ ВОЗДЕЙСТВИЙ
(c. 38-45)

Аннотация. Рассматриваются вопросы построения сервис-ориентированных систем автоматизации схемотехнического проектирования для расчета чувствительности схемных функций к вариации параметров и внешних воздействий. В качестве варьируемых значений могут приниматься параметры двухполюсников и параметры передач управляемых источников, а также параметры произвольных внешних воздействий (температура, давление, влажность и т.д.). Приводится методика построения веб-сервисов для расчета чувствительности схемных функций к выбранному варьируемому параметру методом дифференцирования уравнений и веб-сервисов для расчета чувствительности схемных функций ко всем возможным варьируемым параметрам методом присоединенной схемы.

Ключевые слова:  системы автоматизированного проектирования; веб-технологии; веб-сервисы; сервис-ориентированная архитектура; распределенные системы.

Gridin V. N., Anisimov V. I., Achmad A. D.
AUTOMATION ОF CALCULATION ОF SENSITIVITY ОF DIAGNOSTIC FUNCTIONS TO VARIATION ОF PARAMETERS AND EXTERNAL INFLUENCES
(pp. 38-45)

Abstract. To calculate the sensitivity of circuit functions to external influences, it is necessary to have data on the dependence of the specific characteristics of the circuit components on external influences. These data are the change in temperature, pressure, as well as technological dispersion of the parameters. The main sources of information about the parameters of electronic circuit components are established. The questions of constructing service-oriented systems for automation of circuit design for the calculation of the sensitivity of circuit functions to the variation of parameters and external influences are considered. As variable values, the parameters of the two-ports and the parameters of the transmissions of the controlled sources, as well as the parameters of arbitrary external influences (temperature, pressure, humidity, etc.) can be adopted. The definitions of the basic methods for evaluating the sensitivity functions of circuit functions are given. It is noted that it is necessary to introduce a complex data type for calculating the sensitivity of schemes in the frequency domain. The technique of constructing web-services for calculating the sensitivity of circuit functions to the selected variable is described. The method of differentiating equations for calculating the sensitivity of circuit functions to all possible variable parameters is considered. This method leads to the possibility of calculating the vector sensitivity of circuit functions. It is shown that this method is not limited to this approach, because of the possibility of simultaneous consideration of only a single variable. The justification of the expediency of using the method of connected circuits for calculating the scalar sensitivity is given, which makes it possible simultaneously to analyze the effect of variation of all parameters. Methods of passing arguments between server and client applications are given. Argument groups are created for describing the simulated circuits and for entering calculation directives. The relevance of the considered problems for the construction of specialized web services for the automated design of electronic equipment is noted.

Keywords: Automated design systems; Web technologies; Web services; Service-oriented architecture; Distributed systems.