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Method for thermal imaging diagnostics of radioelectronic elements on printed-circuit board Invention relates to diagnostics of radioelectronic equipment failures. A method consists in reception of a thermal image of radioelectronic elements on a printed-circuit board and its comparison with a standard thermal image. On the thermal image of elements on the printed-circuit board being diagnosed there determined are relative coordinates and values of radiation temperature of elements on the printed-circuit board as per relative coordinates of elements on the printed-circuit board being diagnosed; a standard thermal image of the printed-circuit board is chosen out of the earlier formed data bank; resemblance function S is calculated between radiation temperatures of the corresponding elements on the diagnosed and standard printed-circuit boards; diagnostics of serviceability of each element on the diagnosed printed-circuit board is performed by checking condition (Tmin jk≤Tjk≤Tmax jk), where Tjk - radiation temperature of j element on the diagnosed printed-circuit board, °C; Tmin jk - minimum possible radiation temperature of j element on the diagnosed printed-circuit board; Tmax jk - maximum possible radiation temperature of j element on the diagnosed printed-circuit board. |
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Two-channel converter simulating device Device uses a multichannel matrix structure with feedback, devices for control and linearisation of transmission characteristics of multichannel converters for the specified research tasks and experiments. The device includes a control unit, a generator of multidimensional sequences, units of interface, commutation, comparison, memory, a counter of number of switching operations of a failure detection subunit. |
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In addition to the existing method, the present method includes determining integral estimates of output model signals for each of k control points, obtained by changing the position of the input signal to a position after each of m units, by successively, for each unit of a dynamic system, shifting the position of the input signal to a position after each unit under consideration, transmitting the input signal x(t) thereto through an adder and finding integral estimates of output signals of the system for a parameter α and the input signal x(t), recording estimates of output signals obtained from integration for each of the k control points and each of the m models with the shifted position of the input signal, determining deformation of integral estimates of output model signals obtained by shifting the position of the input signal to the position after each of the corresponding units, determining standardised values of deformation of integral estimates of output model signals obtained by shifting the position of the input signal to the position after each of the corresponding units, calculating diagnostic features and determining a defective unit from the minimum value of the diagnostic feature. |
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Method and control system for power plant load planning Group of inventions refers to power plant load planning. Method of load planning optimisation for a power plant with one or more generation units. Method involves stage of work state analysis for one or more generation unit components by one or more risk indices associated with one or more generation unit components. Then, according to the method, target function reflecting state of one or more generation unit components is updated, and target function is solved for plan optimisation for one or more generation unit components and work state of one or more generation unit components. In addition, one or more generation unit components are controlled in optimised plan and work state. |
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Standardisation of data used for aircraft engine control Invention relates to control over aircraft engine, particularly, to standardisation of data used for control purposes. Means are used for taking measurements in historical series of said aircraft engine. Used are the means to calculate from said historical series measurements the set of indicators inherent in elements of said engine. Means are used to identify from said historical series measurements the set of outer data describing the outer content acting on said set of indicators. Means are used to define the traditional multidimensional model to process indictors of said set along with allowance for the outer data set and to develop the set of estimates corresponding to said set of indicators. Means are used for normalisation of every estimate as the function of reference magnitude for appropriate indicator and the difference between said estimate and said appropriate indicator to generate the set of normalised magnitudes. |
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Aircraft engine fault identification Invention relates to aircraft engine control hardware, particularly, to faultfinding. For identification used are means for determination of the set of normalised indicators that represent the operation of aircraft engine. Means are used to construct the abnormality vector describing the engine behaviour as the function of said set of normalised indicators. Means are used to select, in the case of abnormality detected by said abnormality vector, the subset of basic vectors with directions that belong to definite neighbourhood of direction of said abnormality vector. Said subset of basic vectors is selected from the set of basic vectors content-related with faults of said engine. Saud faults are defined using the criteria set of experts. Besides, means are used to identify faults content-related with said subset of basic vectors. |
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Definition of full-scale tests of complicated ship weapons hardware complex Full-scale test comprises continuous measurement and registration of ambient medium parameters and those of tested complex. Tests completed, selected is at least one test with results falling beyond accepted criterion of complex operation success. Parameters of instrumental control and monitoring of external medium and complex corresponding to said full-scale test and measured during it are input as initial data for launching and execution of simulation and/or semi-full-scale simulation of complex behaviour. Defined are if all complex components participating in full-scale test operate under standard conditions and if these interact with each other under standard conditions. If YES, said full-scale test is summed with all other successful full-scale tests. |
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Method of finding faulty units in continuous dynamic system Method includes measuring the reaction of a properly operating system on an interval at control points and repeatedly determining (simultaneously) integral estimates of output signals of the system for integration parameter values via, at the moment of transmitting a test signal to the input of a system with nominal characteristics, simultaneously beginning integration of control system signals for integration parameters at each control point with weights by transmitting control system signals to first inputs of multiplier units, transmitting, to second inputs of the multiplier units, exponential signals for integration units; transmitting output signals of the multiplier units to inputs of the integration units; completing integration when estimates of output signals obtained from integration are recorded; determining integral estimates of model signals for each control point and integration parameters resulting from test deviations for single and multiple defects of units, for which a test deviation parameter of the transfer function is alternately input into each unit or combination of multiple units of a dynamic system and integral estimates of system output signals for parameters and the test signal are found; recording estimates of output signals for each control point, each test deviation and each integration parameter resulting from integration; determining deviation of integral estimates of model signals resulting from test deviations of combinations of parameters of different structural units; determining normalised values of deviations of integral estimates of model signals resulting from test deviations for single and multiple defects for integration parameters; replacing the system with nominal characteristics with the inspected system; transmitting a similar test signal to the input of the system; determining integral estimates of signals of the inspected system for control points and for integration parameters; determining deviation of integral estimates of signals of the inspected system for control points and integration parameters from nominal values; determining normalised values of deviations of integral estimates of signals of the inspected system for integration parameters; determining diagnostic features for integration parameters; determining the serial number of the defective unit or combination of defective units from the minimum value of the diagnostic feature. |
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Aircraft onboard hardware expert-control system Proposed system comprises tolerance unit (TU), output completeness unit (OCU) and aircraft hardware control system with data transducer subsystem. Said units and system are connected with network of local computation circuit (LCC) connected via cell systems with network of nuclei 9. Outputs of the latter are connected with input of input unit 12, inputs of training unit 11 and tolerance unit 13. Second input of TU 13 is connected with the input of processor 16. Output of said TU 13 is connected with second input of input unit 12. Input of OCU 21 is connected with output of MLV 20. First output of OCU 21 is connected with first input of decision-making unit 17. Second output is connected with interpretation unit 22 connected in series with communication unit 18 and user's terminal 14. |
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Definition of gas turbine suction mass flow rate Set of inventions relates to determination of gas turbine suction mass flow rate. Proposed method allows definition of suction mass flow rate with the help of turbine inlet pressure. Pressure losses in combustion chamber and that between ambient medium and compressor inlet are used as input parameters. Determination is executed without solution of energy balances and without data on fuel calorific value and that on fuel mass flow rate. Note here that preliminary magnitude for suction mass flow rate is determined for every input parameter. Note also that for every preliminary value defined is appropriate magnitude checked validity by cross comparison with appropriate other preliminary data. Note that characteristic parameter as a mean magnitude is generated for gas turbine mass flow rate from data checked for validity. |
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Method of searching for faulty unit in continuous dynamic system Method involves recording the reaction of a fault-free and controlled system, setting the minimum value of the square of standard deviation of signals of the controlled and fault-free system, generating a signal as a square of the standard deviation of reactions of the controlled system and the fault-free system, setting the minimum of current values, generating a signal as the minimum of current values of coefficients of discrimination of all pairs of defects, determining integral estimates of output signals, transmitting output signals of multiplier units to inputs of integrating units, recording the obtained estimates of output signals, determining the number of structural defects of units, determining integral estimates of model signals, recording estimates of output signals obtained from integration, determining deviation of integral estimates of model signals, determining standardised values of deviation of integral estimates of model signals, replacing the system with nominal characteristics of the controlled system, transmitting an analogue test signal to the input of the system, determining integral estimates of signals of the controlled system, determining deviation of integral estimates of signals, determining standardised values of deviation of integral estimates of signals, determining diagnostic features, determining the serial number of the defective unit from the minimum value of the diagnostic feature. |
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Valve state monitoring method and device According to the invention, a point in the process is considered in the method and in the device, when state and performance of a distributing valve is followed up. At monitoring of the valve state, process measurements are used in addition to measurements inside valve (LF) so that process measurements identify working point ("Др"valve, hvalve, ps), at which the valve operates, and those measurements inside the valve are observed at those working points to detect changes and to determine the valve state. In compliance with the invention aspect, variables ("Др"valve, hvalve, ps) representing the working point of a production process are considered when load changes are observed, which are related to friction of the valve, and/or changes in power drive load factor (LF). |
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Disclosed is automated monitoring and testing equipment for testing energy and information interaction circuits of a multichannel control system with actuating devices, having a virtual reference and a module for comparing signals with the reference, a personal computer connected to an information transmission unit with a monitoring unit, which can be connected to a monitored system and has a control unit, a multichannel unit for standardising input signals with an analogue-to-digital converter, a unit for generating output signals and an interface simulator. The equipment is provided with a unit for simulating standard connection of the monitored system with a unit for generating relay signals of the state of the monitored system, a unit for simulating connection to a power supply network, a control module, a module for communication of the monitored system with the personal computer and an interface module, which can be connected to the interface simulator of the monitoring unit through the monitored multichannel control system. |
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System is proposed to monitor automatic controllers of excitation and systems of excitation of power plant generators, comprising a group of meters, information inputs of which are connected to outputs of appropriate generators, and a group of converters of measurement information, at the same time a unit of synchronisation is introduced, the output of which is connected to synchronising inputs of group metres, the outputs of which are connected to inputs of appropriate converters of measurement information, and also a unit of control of operation of automatic excitation controllers (AEC) in operation modes, a unit of AEC operation control in emergency modes and a unit of AEC operation control in special modes, inputs of which are connected to outputs of converters of measurement information of the group, and a unit of generation of monitoring result, inputs of which are connected with outputs of the unit of AEC operation control in operation modes, a unit of AEC operation control in emergency modes and a unit of AEC operation control in special modes, corresponding to the mode of limitation of minimum excitation and/or mode of limitation of the double value of rotor current. |
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Method for determination of crosswise hydrodynamic force and its moment in ship complex maneuvering Invention relates to control over ship course in complex maneuvering at mooring, dynamic position or drifting. Proposed method consists in that prior to performing complex maneuvering, ship rotates under effects of active control means, for example, lateral thrusting propeller. Note here that ship angular ω and spinning moment Mpr produced by lateral thrusting propeller are calculated. Angular speed ω and spinning moment Mpr are used to define hydrodynamic factor c2 and transverse component of hydrodynamic force Yβ, formed at ship hull in its motion with the help of log and formula: Yβ=Cyβ0,5ρυ2Fdp, here C yβ≅c2, ρ is water bulk density; υ is ship linear speed; Fdp is reduced area of centerline buttock. |
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Method of adjusting and tuning topographic precise positioning and navigation system equipment Method involves assembling the article to be tuned, adjustment thereof and using a sample (reference) article. Before tuning and adjustment operations, quality assessment criteria are determined, said criteria being a function of distribution of adjustment errors of the topographic precise positioning and navigation system or distribution of its output parameters based on the set tolerance limit; the tuning and adjustment process is broken down into a series of simple operations with pre-adjustment separate assembly units; adjustment is carried out on installations on measuring devices or by comparing the article to be adjusted with a reference sample (electrical drawing method). The process of adjusting the equipment is broken down into a series of steps, the first step involving shaking the article on a vibration stand in order to remove foreign objects and detect loose joints, the second step involving checking correct assembly based on pre-plotted maps and tables, covering all circuits of the checked device, the third step involving checking operating modes of microcircuits and semiconductor devices, the fourth step involving checking functioning of the device overall and performing adjustment to obtain given characteristics with further control of criteria of the quality of the topographic precise positioning and navigation system executing assigned tasks in conditions comparable with real operating conditions. |
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Method of searching for faulty unit in discrete dynamic system Field of application can be monitoring and diagnosis of automatic control systems and components thereof. The reaction of an operable time-discrete system is recorded for discrete diagnosis cycles with a discrete constant step on an observation interval at control points, and integral estimates of output signals of the discrete system are determined, for which at the moment of transmitting a test or operating signal to the input of the discrete system with nominal characteristics, discrete integration of signals of the control system is simultaneously started with a step at each control point with a weight function equal to the arithmetic average value of moduli of derivatives of its signals at the control points, where averaging is carried out based on the number of control points. To this end, system signals are transmitted to first inputs of multiplier units, the average arithmetic value of moduli of time derivatives of signals are transmitted to the second inputs of the multiplier units, output signals of the multiplier units are transmitted to the inputs of the units for discrete integration with a step, discrete integration is completed at a moment in time, estimates of output signals resulting from integration are recorded, the number of considered individual defects of units is determined, integral estimates of model signals for each control point obtained as a result of test deviations for individual defects of units are determined, for which the test deviation of the parameter of the discrete transfer function is successively input into each unit of the discrete dynamic system and integral estimates of output signals of systems with test deviations for the test signal or operating signal are found, output signal estimates obtained as a result of discrete integration for each control point and each test deviation are recorded, deviations of integral estimates of signals of the discrete model obtained as a result of test deviations of parameters of different structural units are determined, standardised values of deviations of integral estimates of signals of the discrete model obtained as a result of test deviations for individual defects are determined, an analogue test signal or operating signal is transmitted to the input of the controlled system at the beginning of control, integral estimates of signals of the controlled discrete system for control points are determined, the obtained values are recorded, the deviations of integral estimates of signals of the controlled discrete system for control points from nominal values are determined, the standardised values of deviations of integral estimates of signals of the controlled discrete system are determined, diagnostic features are determined, the serial number of the defective unit is determined from the minimum value of the diagnostic feature. |
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Method of finding faulty units in discrete dynamic system Field of application can be monitoring and diagnosis of automatic control systems and components thereof. The reaction of an operable time-discrete system is recorded for discrete diagnosis cycles with a discrete constant step on an observation interval at control points, and integral estimates of output signals of the discrete system are determined, for which at the moment of transmitting a test or operating signal to the input of the discrete system with nominal characteristics, discrete integration of signals of the control system is simultaneously started with a step at each control point with a weight function equal to the arithmetic average value of moduli of derivatives of its signals at the control points, where averaging is carried out based on the number of control points. To this end, system signals are transmitted to first inputs of multiplier units, the average arithmetic value of moduli of time derivatives of signals are transmitted to the second inputs of the multiplier units, output signals of the multiplier units are transmitted to the inputs of the units for discrete integration with a step, discrete integration is completed at a moment in time, estimates of output signals resulting from integration are recorded, the number of considered single and multiple defects of units is determined, integral estimates of model signals for each control point obtained as a result of test deviations for single and multiple defects of units are determined, for which the test deviation of the parameter of the discrete transfer function is successively input into each unit or combination of units of the discrete dynamic system and integral estimates of output signals of systems with test deviations for the same test signal or operating signal are found, output signal estimates obtained as a result of discrete integration for each control point and each test deviation are recorded, deviations of integral estimates of signals of the discrete model obtained as a result of test deviations of parameters of different structural units or combinations of units are determined, standardised values of deviations of integral estimates of signals of the discrete model obtained as a result of test deviations for single or multiple defects are determined, an analogue test signal or operating signal is transmitted to the input of the controlled system at the beginning of control, integral estimates of signals of the controlled discrete system for control points are determined, the obtained values are recorded, the deviations of integral estimates of signals of the controlled discrete system for control points from nominal values are determined, the standardised values of deviations of integral estimates of signals of the controlled discrete system are determined, diagnostic features are determined, the serial number of the defective unit or combination of defective units is determined from the minimum value of the diagnostic feature. |
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System of automatic operability control and fault diagnostics of electronics System comprises a unit being controlled which consists of a controlled unit identifier, a set of software-controlled sources of input test signals, a set of response signal parameters' meters, a computer, a replaceable adapter including an adapter identifier; the identifier inputs are connected to the outputs of supplementary test channels at software-controlled sources of input test signals, and the identifier outputs are connected to the inputs of the supplementary channels of the response signal parameters' meters. |
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System for monitoring safety processes and method of monitoring output module Disclosed is a system for monitoring an output module, having an output module for generating a control signal in response to an input signal, a control module for generating an input signal for the output module, an output device for outputting an output signal in response to the control signal and a transmission device for preventing output of an output signal. The control module is configured to output commands for the transmission device to prevent outputting of an output signal if there is difference between the control signal and the expected control signal based on the input signal. The transmission device for preventing output of the output signal is configured to break the control or data bus of the output device. |
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Method of operating industrial system System includes at least one line (1, 2, 3, 4). Each line (1, 2, 3, 4) includes at least one machine (10, 12, 14, 16). Each machine (10, 12, 14, 16) includes at least one component (110, 112, 114, 116), comprising the steps of detecting status parameters of each component (110, 112, 114, 116), of each machine (10, 12, 14, 16), and of each line (1, 2, 3, 4), transmitting the status parameters to at least one user device, and displaying the status parameters using the at least one user device. |
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Residue analysis apparatus and method for detecting system errors in aircraft system behaviour Residue analysis apparatus includes a residue generator depending on at least the value of the control action and the output parameter of the system, a comparator unit for providing an analysis result by comparing the residue with a set threshold value, a first unit for providing a constant component of the threshold value, a second unit for providing an adaptive component of the threshold value depending on at least the time-variable value of the control action and a third unit for providing a threshold value by combining the constant component of the threshold value with the adaptive component of the threshold value. |
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Household appliance and method of its operation Household appliance displays technical information as a predetermined audio signal, and the audio signal is transmitted to a remote service center via the communication network, so that the state of the household appliance can easily be checked at the service center. The data associated with each operation of the household appliance are stored as the technical information according to the operating mode of the household appliance. The technical information is also stored when the work is completed suddenly, and then is displayed as a sound signal, so that the state of the household appliance can be properly checked and an error that occurs in a household appliance can be correctly diagnosed. |
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Bench for diagnostics of microprocessor system of locomotive control Bench is proposed for diagnostics of a microprocessor control system (MCS) of a locomotive, which comprises a computer, a source of power supply. The bench is equipped with a control unit, a unit of digital-to-analogue converter (DAC) switchboards, a unit of frequency signals inspection, a unit of input discrete channels inspection, a unit of output discrete channels inspection, a unit of MCS width-pulse modulators inspection and a unit of loads, besides, the computer is connected with the diagnosed MCS, the control unit is connected with the unit of DAC switchboards, the unit of frequency signals inspection, the unit of input discrete channels inspection, the unit of output discrete channels inspection, a unit of width-pulse modulators inspection, at the same time outputs of the DCA switchboards unit are connected to the MCS inputs, outputs of the frequency channels inspection unit are connected with the MCS inputs, outputs of the input discrete channels inspection unit are connected with MCS inputs, the inputs of the output discrete channels inspection unit are connected with MCS outputs, WPM-inputs of the width-pulse modulators inspection unit are connected with outputs of the MCS WPM and with the input of the loads unit, the control unit is connected along the second serial channel of communication with MCS, the source of power supply is connected with the diagnosed MCS and with all units of the bench, apart from the loads unit. |
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Device for monitoring vehicle control system sensors Novel longitudinal, normal and transverse accelerometer is included, as well as multipliers, an adder, a functional square-rooting converter, a gravitational acceleration setting device and connections. Operation and monitoring of all sensors is provided in both flight and pre-flight state. Monitoring is carried out based on non-inertia relationships, which include arithmetic operations that are quite easily implemented on-board the vehicle in real-time. |
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Control facilities comprise testing facilities that include an interface designed for reception of requests for testing from a user. Testing facilities are made so that whenever a testing request is received, they initiate a cycle of testing of one or several components of the system, including actuation of a component or components separately from other components of the system. |
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Method is based on applying systems for automatic monitoring of performance and diagnosing faults in communication electronic equipment. Before the beginning of inspection, combinations of polling signals are respectively transmitted to inputs of the removable adapter identifier and the control object identifier, installed on the removable adapter and the control object; identification signals are measured and used to generate identification codes; the generated identification codes are transmitted to a computer; the connected control object is identified; the obtained identification code (with the removable adapter identifier) is compared with the code of the type of the removable adapter to be used in monitoring said type of control object; the computer generates a message on authenticity of the used adapter and its fitness to conduct the monitoring and diagnosis process. |
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Apparatus for detecting faults in standby system Invention involves generating signals signalling faults in components of standby radio automation systems and automatic aircraft control systems. The apparatus has an working element, three subtractors, two comparing elements, four threshold devices, two NOT elements, two AND logic elements, an OR logic element and a fault display device. The inputs of the first threshold device and the second threshold device are connected to outputs of the working element. The outputs of the first subtractor are connected to the series-connected third threshold device, first AND logic element, OR element and fault display device. The outputs of the second subtractor are connected to the series-connected fourth threshold device, second AND logic element, OR element and fault display device. The outputs of the first threshold device are connected to the third subtractor and the second input of the fault display device. The outputs of the second threshold device are connected to the second input of the third subtractor and the first NOT element. The first NOT element is connected to the third input of the fault display device. The input of the second NOT element is connected to the output of the third subtractor. The output of the second NOT element is connected to second inputs of the first and second AND logic elements. |
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Device for remote monitoring of gas equipment operation and household gas leaks in apartment blocks Device comprises gas instruments, gas consumption counters, gas content sensors, sensors of volume flow of air, oxygen, scaling and differential amplifiers, comparators, digital to analogue converters, setters of the minimum value of volume air flow, a setter of the value of permissible imbalance, a summator of gas flow, time delay units, gas supply cutoff valves, "OR" elements, a cellular communication modem and apartment radio modems with a set of information inputs and outputs. |
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Method to search for faulty block in discrete dynamic system Previously a reaction of a knowingly good system is registered for discrete beats of diagnostics with discrete permanent pitch in the observation interval at reference points, and integral estimates of output signals of the discrete system are determined. For this purpose at the moment of test signal supply to the inlet of the discrete system with rated characteristics, simultaneously discrete integration of control system signals is started with the pitch in seconds in each of the reference points with discrete weights, by supplying of control system signals to the first inlets of the multiplication blocks. A discrete exponential signal is supplied to the second inputs of the multiplication blocks with the pitch in seconds, output signals of the multiplication blocks are supplied to the inputs of the discrete integration blocks with the pitch in seconds, discrete integration is completed at the moment of time. Estimates of output signals produced as a result of integration are registered. The number of the system blocks is fixed, elements of topological links of each block within the discrete system for each reference point are determined, elements are determined from many values {-1,0,1}, the value - 1 is defined, if the sign of signal transfer from the output of the i block to the j reference point is negative. The value 0 is determined, if signal transfer from the output of the i block to the j reference point is not available, the value 1 is determined, if the sign of signal transfer from the output of the i block to the j reference point is positive. Then the rated values of the vector of topological links for each block are defined, the system with rated characteristics is replaced with the controlled one, an identical test signal is supplied to the system inlet. Integral estimates of signals of the controlled discrete system are determined for reference points for a parameter of discrete integral conversion, deviations of integral estimates of signals of the controlled discrete system are defined for reference points from rated values. Rated values are determined for deviations of integral estimates of signals of the controlled discrete system, diagnostic criteria are determined, by the minimum of the value of the diagnostic criterion a serial number of a defect block is determined. |
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Method to search for faulty block in discrete dynamic system Previously a reaction of a knowingly good time-discrete system is registered for discrete beats of diagnostics with discrete permanent pitch in the observation interval at reference points, and integral estimates of output signals of the discrete system are determined repeatedly (simultaneously) for the values of the discrete integration parameter. For this purpose at the moment of test signal supply to the inlet of the discrete system with rated characteristics, simultaneously discrete integration of control system signals is started with the pitch in seconds for integration parameters in each of the reference points with weights with the pitch in seconds, by supplying of control system signals to the first inlets of the multiplication blocks. Discrete exponential signals are supplied to the second inputs of the multiplication blocks with the pitch in seconds for discrete integration blocks, output signals of the multiplication blocks are supplied to the inputs of the discrete integration blocks with the pitch in seconds. Integration is stopped at the moment of time, estimates of output signals produced as a result of discrete integration are registered. The number of considered single defects of blocks is fixed, integral estimates of model signals are determined for each of the reference points and parameters of discrete integration, produced as a result of test deviations of parameters of each block. For this purpose in turns for each block of the discrete dynamic system they introduce test deviation of the parameter of its discrete transfer function, and integral estimates of output signals of the system are found for parameters of discrete integral conversions and the test signal. Estimates of output signals produced as a result of discrete integration for each of the reference points, every test deviation and every parameter of discrete integration are registered. Deviations of integral estimates of discrete model signals are determined, being produced as a result of test deviations of parameters of appropriate structural blocks, the rated values of deviations of integral estimates of discrete model signals are determined, being produced as a result of test deviations of parameters of appropriate blocks for parameters of discrete integration. The system with rated characteristics is replaced with a controlled one, an identical test signal is supplied to the inlet of the system, integral estimates are determined for signals of the controlled discrete system for reference points and for parameters of the discrete integration. Deviations of integral estimates of controlled discrete system signals are determined for reference points and parameters of discrete integration from rated values. Rated values of deviations of integral estimates of controlled discrete system signals are determined for parameters of discrete integration, diagnostic criteria are determined with parameters of discrete integration, by the minimum value of the diagnostic criterion, a faulty block is determined. |
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Method to search for faulty block in continuous dynamic system Previously a reaction of a knowingly good system is registered in the interval at reference points, and integral estimates of output signals of the system are determined repeatedly (simultaneously) for integration parameter values. For this purpose at the moment of test signal supply to the inlet of the system with rated characteristics, simultaneously integration of control system signals is started for parameters of integration in each of the reference points with weights, by supplying of control system signals to the first inlets of the multiplication blocks. Exponential signals for integration blocks are supplied to the second inlets of the multiplication blocks. Output signals of the multiplication blocks are supplied to the inputs of the integration blocks. Integration is completed at the moment of time. Estimates of output signals produced as a result of integration are registered, the number of the system blocks is fixed, elements of topological links of each block within the discrete system for each reference point are determined, elements are determined from many values {-1,0,1}, the value - -1 is defined, if the sign of signal transfer from the output of the i block to the j reference point is negative. The value 0 is determined, if signal transfer from the output of the i block to the j reference point is not available, the value 1 is determined, if the sign of signal transfer from the output of the i block to the j reference point is positive. Then the rated values of the vector of topological links for each block are defined, the system with rated characteristics is replaced with the controlled one. An identical test signal is supplied to the inlet of the system, integral estimates are determined for signals of the controlled system for reference points and for parameters of integration. Deviations of integral estimates of controlled system signals are determined for reference points and parameters of integration from rated values. Rated values of deviations of integral estimates of controlled system signals are determined for parameters of integration, diagnostic criteria are determined with parameters of integration, by the minimum value of the diagnostic criterion, a serial number of a faulty block is determined. |
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In the switching device with "-" and "+" feed bars and n of single-type reserved relay cells consisting of four relays and four isolation diodes, the first, second and third switchable "+" feed bars, the fourth switchable "+" feed bar is introduced with four remote switches with two normally closed contacts, five current sensors, controller. The secondary outputs of windings in each cell are connected respectively to the first, second, third and fourth switchable "+" feed bar; the first, second, third and fourth current sensor is installed respectively at first, second, third and fourth switchable "+" feed bar through which the first normally closed contacts of the first, second, third and fourth remote switch is connected with common "+" feed bar while the fifth sensor is installed at switchable "-" feed bar. Outputs of current sensors are connected to data inputs of the controller which signal inputs trough the second normally closed contacts respectively of the first, second, third and fourth remote switch are connected to the common signal input of the controller. |
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Apparatus for simulating multichannel converters Apparatus has a synchronisation unit 1, an integrated unit 2, a switch 3, units for controlling and linearising transfer characteristics of multichannel converters 4, counters for counting the number of times a fault detection subunit 5 is switched, a control unit 6, memory units 7 and 8. The output of the synchronisation unit is connected to the input of an interfacing unit, and a multidimensional sequence generator is in form of a multichannel device of a matrix structure with feedback, and the data output of the interfacing unit fully conforms to data connections, and its data output is connected to the input of the switch. |
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Estimating parameters of control over engineering process in preset displacement segments Method of defining parameter setimate inherent in segment related with engineering process circuit of control over operation of control devices, say, valves. It comprises generating signal data corresponding to signal from engineering process control circuit, storing said data, dividing it into segments of signals, and executing statistic analysis at the first segment of data segments selected from said data segments to generate first estimate of parameters inherent in said segment. |
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Method of designing computational process of testing equipment Diagnostic tests are created when testing electronic devices. By executing a test, the computational testing process is realised and data packets are generated in an input/output device. The input/output device generates signals at outputs; the control equipment performs display and control of the computational process. The computational process is executed by the control equipment, and specifically generates diagnostic tests, executes the computational testing process and sends data packets to the input/output device by transit through a computational unit having software which realises communication between the control equipment and the input/output device. Information from the control equipment is recorded in the input/output device by the control equipment generating a packet in dashboard interface protocol format with an information recording feature, from which F packets are generated in highway interface protocol format, which are transmitted to the computational unit which, upon receiving the F packets, generates a packet in dashboard interface protocol format and sends said packet to the input/output device, thereby recording information. |
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Method for preliminary assessment of quality of diagnostic tests Disclosed is a method for preliminary assessment of quality of diagnostic tests, consisting in that, based on the description of internal parts of the diagnosed article, an equivalent standard model of connections is formed; for the obtained standard model of the diagnosed article, combinations of input test signals are formed; for each combination of input test signals, parameters of combinations of output signals are determined, wherein at the inputs of the obtained standard model of the diagnosed article, corresponding combinations of input signals are given in a corresponding sequence given in the assessed diagnostic test; for each combination of given input signals, except the first, parameters of combinations of response signals at the outputs of the standard model of the diagnosed article and in characteristic intermediate points between standard models of component parts of the article are determined and, by comparing response signals obtained for the previous combination of given input signals, change in values of response signals is determined; preliminary efficiency of the diagnostic test is calculated; a preliminary decision on sufficient quality of the assessed diagnostic test is made, as a result of which the assessed diagnostic test is sent for refinement or for experimental checking. |
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System for control of at least one drive of turbojet engine thrust reverser hood According to the invention, the control system contains at least one hood drive (actuated by at least one electric motor), electric motor and drive controls, an electric circuit including several electric components, multiple gauges intended for measurement of, respectively, the characteristic value of the electric circuit electric component or group of electric components, fault detectors intended to detect a fault at the electric circuit electric component level when the measured characteristic value pertaining to the component concerned exceeds the preset value of falls within a certain preset range of values. |
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Automated test and control equipment Invention relates to automated test and control equipment and can be used as apparatus for checking operating capacity of multichannel communication systems and apparatus for controlling air-launched weapons of aircraft and their component parts during preflight preparation of the aircraft. The automated test and control equipment includes: a multichannel comparator unit, a virtual reference, a normalisation unit, a multiplexer, a control object, a switch, an output signal conditioner, a control unit, a multichannel comparator unit, a storage unit for reference sets, a storage unit for control results and an operability indicator. |
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Method to determine margins of stability of steering gear and device for its implementation First a logarithmic frequency characteristic is taken in a section of a circuit of an electromechanical and power part of a drive by means of supply of a harmonic signal to its inlet, for instance, from an analyser of frequency characteristics, and then a zero signal is set to the gear inlet, an outlet link of the gear is loaded with a harmonic force, for instance, with a loader, to the inlet of which a harmonic signal is sent from the second analyser of frequency characteristics, and the logarithmic frequency characteristic is taken in the electric part of the control system. Using the sum of logarithmic frequency characteristics, they produce a logarithmic frequency characteristic of an open circuit of a drive, and on its basis they determine margins of gear stability by amplitude and phase. Also a device is proposed to determine margins of steering gear stability comprising two analysers of frequency characteristics, of the loader and the gear. |
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Channel (500) is configured and arranged to be rigidly mounted (401) to equipment (100) meant for temporary monitoring. At least one element (800) for connecting with a sensor is movably gripped (402) inside this channel and a sensor assembly (1000) (comprising a plurality of photosensitive receptors (1001) which are arranged in form of a structure which corresponds to signal lights which make up part of the monitored equipment) is pressed (404) to the element for connecting with the sensor by a fixation element (1200) so as to retain the sensor assembly in place with respect to the monitored equipment. Owing to this approach, the sensor assembly (in combination with the element for connecting with the sensor) can be moved (403) along the channel to a selected position with respect to at least one of the signal lights and then retained in that selected position by the fixation element. |
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Method of finding faulty units in discrete dynamic system Reaction of a good, time-discrete system is recorded first; integral estimates of output signals of the discrete system are determined; the number of analysed single and multiple defects of units is recorded; integral estimates of signals of the model for each control point are determined; deviations of integral estimates of signals of the discrete model are determined; standardised values of deviations of integral estimates of signals of the discrete model are determined; the system with nominal characteristics is replaced with the controlled system; an analogue test signal is transmitted to the input of the system; integral estimates of signals of the controlled discrete signals are determined for control points for the discrete integral transformation parameter; deviations of the integral estimates of signals of the controlled discrete system are determined for control points from the nominal values; standardised values of deviations of integral estimates of signals of the controlled discrete system are determined from the ratio; diagnostic features are determined from the ratio; the index number of the single defect of the unit or a combination of defects of units is determined from the maximum value of the diagnostic feature. |
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Method of finding faulty units in dynamic system Reaction of a good system on an interval at control points is recorded, and integral estimates of output signals of the system are determined, for which at the moment of transmitting a test or operating signal to the input of the system with nominal characteristics, integration of signals of that system is simultaneously started for each control point with a weight function equal to the arithmetic average value of moduli of derivatives of its signals at the control points, where averaging is carried out on the number of control points. |
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Method of detecting faults in units in continuous dynamic system Reaction of a good system on an interval at control points at discrete time instants to an input stimulus is recorded; output signals of a model are determined for each of the control points, obtained as a result of trial deviations of the examined single and multiple parametric defects of units. |
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Method and apparatus for detecting and eliminating malfunctions in machines Method of detecting malfunctions in bottles in bottle processing machines, wherein a signalling device lies independently from the point where malfunctions occur, preferably in the central part of the bottle processing machine, and the point of the malfunction is optically marked from a distance. The signalling device is optically modulated such that colour and/or image and/or beam direction and/or light pattern of the light source is time and/or spatially modulated. |
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Invention relates to systems, devices and methods for monitoring and transmitting information from a system component sensor located in a high-risk zone. Transmission of information on a system component sensor located in a hazardous zone to a system controller involves use of an improved controller of the hazardous zone along with transmission of data over power lines in order to transmit diagnostic information obtained from the sensor located in the high-risk zone to a central monitor/controller located in a safe zone. |
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Method creating proof tests for electronic devices Method involves mathematical planning of an experiment with a set of devices and constructing mathematical models reflecting the effect of input signals and operating action, as well as internal factors (component parameter spread), where said mathematical models are used to form sets of actions and the corresponding allowable deviation of input parameters of the devices (proof tests) in order to check conformity of the manufactured devices with given requirements. |
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Method of checking efficiency of aircraft undercarriage nose wheel turn control unit Proposed method comprises connecting interface 14 of tester 12 to, at least, one input port of aircraft nose wheel control units 10. Said tester 12 incorporates nose wheel speed simulator to generate speed simulation signal. Nose wheel speed simulation signal is generated to represent definite simulated speed exceeding preset speed. Generated signal is transmitted to unit 10 via interface 14. Tester 12 is used to control simultaneously two separate units 10 to make one of them operate in instruction feed mode and another one in control mode. Output signal of said unit 10 in response to received speed simulation signal is controlled. |
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Method of searching for faults in dynamic unit in continuous system Number of dynamic units of a controlled system is determined, reaction of a good system is recorded on an interval at control points, and integral estimates of output signals of the system are determined, for which at the moment of transmitting a test or operating signal to the input of the system with nominal characteristics, integration of signals of that system is simultaneously started for each control point with a weight function equal to the arithmetic average value of moduli of derivatives of its signals at the control points, where averaging is carried out on the number of control points. |
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Device for identifying parameters of dynamic systems based on variation principles Device comprises (dwg. 1) a constant storage unit, two units for generating functions f and H, respectively, five derivative generating units, eleven multiplier units, three difference generating units, two adders, two transportation units and six integrating units. Identification of parameters based on variation principles increases accuracy and rate of convergence of estimates compared with the existing Kalman filter. |
Another patent 2531206.