RU2017115276A - METHOD FOR PREDICTING THE CONDITION OF A TECHNICAL SYSTEM USING APPROXIMATION OF ITS PARAMETERS TO CONTINUOUS FUNCTION - Google Patents

METHOD FOR PREDICTING THE CONDITION OF A TECHNICAL SYSTEM USING APPROXIMATION OF ITS PARAMETERS TO CONTINUOUS FUNCTION Download PDF

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RU2017115276A
RU2017115276A RU2017115276A RU2017115276A RU2017115276A RU 2017115276 A RU2017115276 A RU 2017115276A RU 2017115276 A RU2017115276 A RU 2017115276A RU 2017115276 A RU2017115276 A RU 2017115276A RU 2017115276 A RU2017115276 A RU 2017115276A
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indicators
subsystems
units
functioning
aggregates
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RU2017115276A
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RU2017115276A3 (en
RU2681404C2 (en
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Михаил Валерьевич Лифшиц
Александр Васильевич Крымский
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Акционерное общество "РОТЕК" (АО "РОТЕК)
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B15/00Systems controlled by a computer
    • G05B15/02Systems controlled by a computer electric
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B17/00Systems involving the use of models or simulators of said systems
    • G05B17/02Systems involving the use of models or simulators of said systems electric
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/048Monitoring; Safety
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00Testing or monitoring of control systems or parts thereof
    • G05B23/02Electric testing or monitoring

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Claims (11)

1. Способ предсказания состояния технической системы при помощи аппроксимации ее параметров к непрерывной функции на основе данных о функционировании агрегатов и/или подсистем агрегатов, из которых состоит рассматриваемая техническая система, при этом данные о функционировании представлены в виде показателей в различных материальных формах в их дискретном цифровом представление и характеризуют технологические параметры системы и/или ее подсистем, и предусматривающий следующие стадии:1. A method for predicting the state of a technical system by approximating its parameters to a continuous function based on data on the functioning of units and / or subsystems of units that make up the considered technical system, while data on functioning are presented in the form of indicators in various material forms in their discrete digital representation and characterize the technological parameters of the system and / or its subsystems, and providing for the following stages: накапливают данные о функционировании в виде показателей в различных материальных формах в их дискретном цифровом представление о функционировании агрегатов и/или подсистем агрегатов и передают их эксперту;accumulate data on functioning in the form of indicators in various material forms in their discrete digital representation of the functioning of aggregates and / or subsystems of aggregates and transmit them to an expert; эксперт, на основе выбора методов построения моделей функционирования отдельных агрегатов и/или подсистем агрегатов, и/или системы в целом и показателей функционирования, либо их подмножества, выбирает по меньшей одну из моделей функционирования отдельных агрегатов и/или подсистем агрегатов, и/или системы в целом, допускающую представление в виде непрерывной функции;the expert, based on the choice of methods for constructing functioning models of individual units and / or subsystems of units, and / or the system as a whole and performance indicators, or a subset of them, selects at least one of the functioning models of individual units and / or subsystems of units, and / or systems generally admissible as a continuous function; эксперт, исходя из данных, полученных на стадиях 1 и 2 получает аппроксимацию показателей в их дискретном цифровом представление о функционировании агрегатов и/или подсистем агрегатов к непрерывной функции, таким образом, что она принимает значения показателей в реальные или условные моменты времени, которые являются единственным аргументом или несколькими аргументами этой функции;the expert, based on the data obtained in stages 1 and 2, gets an approximation of the indicators in their discrete digital representation of the functioning of the aggregates and / or subsystems of the aggregates to a continuous function, so that it takes the values of indicators at real or conditional times that are unique an argument or several arguments to this function; в процессе функционирования отдельных агрегатов и сложных технологических комплексов, состоящих из отдельных агрегатов и/или подсистем агрегатов получают текущие показатели функционирования;in the process of functioning of individual units and complex technological complexes consisting of separate units and / or subsystems of units receive current performance indicators; полученные текущие показатели в автоматизированном режиме сравнивают со значениями аппроксимирующей функции, полученной на стадии 3 и оценивают размер отклонений текущих показателей от значений аппроксимирующей функции;the obtained current indicators in an automated mode are compared with the values of the approximating function obtained in stage 3 and the size of the deviations of the current indicators from the values of the approximating function is estimated; определяют с помощью внешнего критерия размер отклонения поступающих показателей от значений аппроксимирующей функции и делают вывод о нормальности или аномальности текущих отклонений;using an external criterion, determine the size of the deviation of the incoming indicators from the values of the approximating function and conclude that the current deviations are normal or anomalous; при помощи аппроксимирующей функции прогнозируют состояние отдельных агрегатов и/или подсистем агрегатов, и/или системы в целом в следующие моменты времени, осуществляя прогнозирование;using the approximating function, the state of individual aggregates and / or subsystems of aggregates, and / or the system as a whole, is predicted at the following time instants by forecasting; полученные показатели и состояния необязательно сохраняют и используют в качестве управляющих воздействий для данной или аналогичной технической системы, позволяющих достичь оптимального функционирования отдельных агрегатов и/или подсистем агрегатов, и/или системы в целом.the obtained indicators and conditions are not necessarily saved and used as control actions for a given or similar technical system, allowing to achieve optimal functioning of individual units and / or subsystems of units, and / or the system as a whole. 2. Способ по п. 1, отличающийся тем, что эксперт при помощи вычисления производных анализирует аппроксимирующую функцию, выявляя ее экстремумы, а также характер убывания или возрастания для прогнозирования поведения данной или аналогичной технической системы.2. The method according to p. 1, characterized in that the expert, using the calculation of derivatives, analyzes the approximating function, revealing its extrema, as well as the nature of the decrease or increase to predict the behavior of this or a similar technical system. 3. Способ по п. 1, отличающийся тем, что эксперт при принятии решений использует технологии искусственного интеллекта.3. The method according to p. 1, characterized in that the expert uses artificial intelligence technologies when making decisions.
RU2017115276A 2017-05-02 2017-05-02 Method for predicting the condition of a technical system with the help of approximating its parameters to a continuous function RU2681404C2 (en)

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