359 results about "Operating variables" patented technology

The technology disclosed enables the automatic definition of monitoring alerts for a web page across a plurality of variables such as server response time, server CPU load, network bandwidth utilization, response time from a measured client, network latency, server memory utilization, and the number of simultaneous sessions, amongst others. This is accomplished through the combination of load or resource loading and performance snapshots, where performance correlations allow for the alignment of operating variables. Performance data such as response time for the objects retrieved, number of hits per second, number of timeouts per sec, and errors per second can be recorded and reported. This allows for the automated ranking of tens of thousands of web pages, with an analysis of the web page assets that affect performance, and the automatic alignment of performance alerts by resource participation.

The present invention provides a system and method for calculating and arraying an entirely universe of publicly traded stock performance data, technical and dynamic range of movement stock price data, underlying operating corporate balance sheet plus income statement fundamental data and ratios, and derived corporate operating and stock analysis data in such a manner as to enable the data for any selected single company to be phased, combined and superimposed within a series of graphical illustrations, which enable investors to easily visualize and compare the relationship of stock price movement and the underlying progression of fundamental operating variables of companies listed on exchanges around the world. The system includes a server computer, one or more client computer coupled to the server computer via the Internet, a database for storing, identifying and extrapolating stocks data, one module for calculating a set of selected performance parameters pursuant to a set of preset standards, a module for transforming calculation results of said calculation module into graphical illustrations; and a graphical user interface from which a user may send an inquiry to the server computer and be returned with a set of graphical illustrations on the inquired stock performance.

The invention discloses an on-line dynamic optimization control method for a converter steelmaking process based on data driving. The method comprises the following steps: building an off-line prediction model database; building a liquid steel temperature prediction model and a carbon content prediction model by use of a data driving method to obtain a corresponding relationship between operating variables and the temperature and carbon content of liquid steel in the converter steelmaking process; selecting a melt data unit matched with the information of the current converter steelmaking production process and determining a control reference curve of the liquid steel temperature and carbon element content; building a real-time dynamic optimization model of the converter steelmaking process and determining an optimized set value unit of each operating variable; and selecting the set value of each operating variable from the optimized set value unit so as to carry out control operation. The method disclosed by the invention can be used for realizing real-time on-line control over the converter steelmaking process and providing convenience for an operator to set selection conditions according to actual working conditions, thus the production efficiency of a steelmaking plant is improved.

The invention comprises a strategy and method for phase shifting intake and exhaust valve timing relative to crankshaft position as a function of engine operating variables, whereby valve overlap is delayed to obtain improved fuel economy resulting from a late intake valve closing to reduce pumping work during the intake stroke. The exhaust gases are drawn into the combustion cylinder of the engine during the intake stroke, which reduces oxides of nitrogen in the exhaust gas and reduces unburned hydrocarbons. Improved thermal efficiency and reductions in oxides of nitrogen are achieved as the combustion charge is diluted at higher loads by an external exhaust gas recirculation system, thereby combining the effects of exhaust gas recirculation and dual equal variable camshaft timing to obtain fuel economy benefits that cannot be achieved with either a conventional EGR system acting alone or dual equal variable camshaft timing acting alone.

Automated control of a cooling system cooling at least one electronic component is provided. The control includes monitoring over a period of time variation of an operational variable of the cooling system or of the at least one electronic component, and based, at least in part, on variation of the operational variable over the period of time, automatically determining whether to adjust control of the cooling system to limit variation of the operational variable. In one implementation, depending on the variation of the operational variable, and whether control of the cooling system has been previously adjusted, the method may further include automatically determining a probability of fail or an expected residual life of the cooling system, and responsive to the predicted probability of fail exceeding a first acceptable threshold or the expected residual life being below a second acceptable threshold, automatically scheduling for a cooling system repair or replacement.

Methods and apparatus for limiting communication capabilities in mobile communication devices are disclosed. In one illustrative example, an operating variable of a mobile communication device is detected to be within one of a first range of values, a second range of values, and a third range of values. The mobile device operates in a full communication state if the operating variable is detected to be within the first range of values, a first limited communication state if the operating variable is detected to be within the second range of values, or a second limited communication state if the operating variable is detected to be within the third range of values. When receiving a communication request for establishment of a voice call or for communication of a user data message, the mobile device permits or prohibits the communication depending on the communication state, and preferably depending on whether the communication request is for a non-emergency or emergency communication. In one preferred embodiment, the operating variable is a temperature of the mobile device.

The present invention generally provides a closed feedback system for operating peripheral devices in response to environmental conditions. Illustrative environmental conditions include well bore pressure, line pressure, fluid levels, flow rates and the like. In one embodiment, a flow controller disposed in a fluid line is operated in response to operating variable readings (e.g., pressure and/or flow rate) taken in the flow line and/or a well bore. The variable measurements are then compared to target values. If necessary, the flow controller is closed or opened to control the rate of fluid flow through the flow line and thereby achieve the desired target values. In another embodiment, the operation of a pump motor is monitored. Operating variables, such as voltage, current and load, are measured and compared to target values. In the event of a difference between the actual values of the variables and the target values, the flow controller is adjusted to affect the head pressure on a pump being driven by the motor. In some cases, the motor operation may be halted or otherwise adjusted.

The invention discloses a system for minimizing chemical oxygen demand (COD) discharge of a pesticide production waste liquid incinerator, comprising a field intelligent instrument connected with the pesticide production waste liquid incinerator, a DCS system and a host computer. The host computer comprises a standardized processing module for collecting training samples TX of key system variables from a database and the chemical oxygen demand data Y corresponding to the training samples TX and standardized processing the training samples TX, a support vector machine (SVM) module for soft-sensor modeling and a particle swarm algorithm module for solving the following minimum problem with the pgK obtained when iteration is ended being the operating variable with minimum chemical oxygen demand. The invention also discloses a method for minimizing the chemical oxygen demand (COD) discharge of the pesticide production waste liquid incinerator. The invention provides a system and a method for minimizing the chemical oxygen demand (COD) discharge of the pesticide production waste liquid incinerator, which can measure the COD online and effectively monitor whether the COD exceeds standard.

An apparatus for detecting difference in operating characteristics of a main circuit by using a replica circuit is presented. In one exemplary case, a sensed difference in operating characteristics of the two circuits is used to drive a tuning control loop to minimize the sensed difference. In another exemplary case, several replica circuits of the main circuit are used, where each is isolated from one or more operating variables that affect the operating characteristic of the main circuit. Each replica circuit can be used for sensing a different operating characteristic, or, two replica circuits can be combined to sense a same operating characteristic.

A method for controlling starting of an internal combustion engine in a hybrid electric vehicle powertrain having multiple power flow paths to vehicle traction wheels from the engine and from an electric motor. A smoothness factor is calculated to determine how smooth an engine start should be. Engine operating variables regulate engine smoothness during engine start events as determined by the calculated smoothness factor appropriate for selected vehicle operating conditions.

The voltage limiter is used to effectively limit short-term and long-term overvoltages. Said voltage limiter has a varistor (1) and a discharge path which can be connected in parallel with the varistor. The discharge path contains a switching point (4), which is preferably in the form of a semiconductor switch and can be loaded with an uninterrupted current, and which can be closed above a limit value of a signal which is dependent on an operating variable of the varistor (1). The varistor (1) is arranged in a first area (24) and the switching point (4) is arranged in a second area (26) of two areas (24, 26, 28) which are at an axial distance from one another in the direction of an axis of symmetry (20). Means (5) for operating the switching point (4) are accommodated in a third area (28), which is at a defined potential. The arrangement of the components (1, 4, 5) of the voltage limiter in separate areas (24, 26, 28) results in a compact, modular construction, and those components of the voltage limiter which are subject to power loading, namely the varistor (1) and the switching point (5), are physically separated from one another, so that they can be cooled independently of one another. Since the operating means (5), which generally operate electronically, are accommodated in an electromagnetically shielded area (28), the operational reliability of the voltage limiter is at the same time improved, and, in particular, undesirable high-energy electromagnetic interference is kept away from this area (28).

The invention relates to a batch-to-batch optimization method of a batch process by combining a medium-term correction strategy. The method comprises the following steps: firstly establishing a quality variable predictive model of an NLPLS, and carrying out prediction on final product quality according to control operation variables of the process; on the basis of the model, calculating an optimal control strategy and implementing the optimal control strategy on a practical device; adopting a recurrence algorithm to carry out updating on the original NLPLS model according the newly-obtained data and old model parameters after each batch is finished; then solving the optimal control strategy again and implementing the optimal control strategy on an object; generally, after several batches, leading the control strategy to converge a satisfactory solution; and simultaneously, in order to process the interference in batches, adopting the medium-term correction strategy, utilizing new information obtained by the current batch to carry out correction on the latter control strategy. The method combines the batch-to-batch optimization and the medium-term correction strategy, makes up the insufficiency that the traditional batch-to-batch optimization method can not process the interference in batches and improves the control performance.

A method for error-compensated current measurement of an electrical accumulator, including: providing a time window-related estimated charge ascertained by a model-based estimator from operating variables of the accumulator and reflecting the estimated charge that has been withdrawn from the accumulator and supplied to the accumulator within the time window; and detecting the accumulator current supplied to the accumulator and withdrawn from the accumulator during the time window, with a current detection sensor. A zero crossing point in time (estimated charge is essentially zero) and a maximum point in time (the absolute value of the estimated charge essentially has a relative maximum or has a value which is greater than a minimum charge difference) are detected. A current measurement offset error is ascertained at the zero crossing point in time by comparing the estimated charge to the detected accumulator current. The accumulator current is ascertained according to the current measurement offset error, and a current measurement scaling error is ascertained at the maximum point in time by comparing the estimated charge to the detected accumulator current. The ascertained current measurement offset error is subtracted from the comparison result thus obtained, and the accumulator current is compensated for based on the current measurement scaling error. A related device for error-compensated current measurement is also described.

The invention discloses a fault diagnosis method based on deep learning and signal analysis. The method includes: acquiring data in normal and faulty states of an industrial process in advance, and dividing the data into a training set and a test set; and training model parameters offline based on the training set, detecting a model through the test set, wherein a performance index refers to the precision of fault diagnosis, and a value thereof represents the generalization performance of the model, namely the online diagnosis capability of faults. According to the method, as a variant of a neural network, physical information of a process operation variable in a time domain can be obtained, and frequency domain information of a process measurement variable can be obtained through introduction of a wavelet analysis method; besides, a depth structure adopted by the method adapts to big, fast, various, and uncertain characteristics of industrial big data, the physical information of theprocess operation variable and frequency characteristics of the process measurement variable are combined, a complex mode of a deep grade of the faults is learned, fault diagnosis can be effectively realized, and excellent generalization capability is displayed in an online diagnosis test.