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186results about How to "Accurate forecast" patented technology

Strip steel quality forecasting, furnace condition early-warning and fault diagnosis method based on partial least square

The invention relates to a strip steel quality forecasting, furnace condition early-warning and fault diagnosis method, in particular to a strip steel quality forecasting, furnace condition early-warning and fault diagnosis method based on partial least square, comprising the following steps: model selection: multiple models are adopted to describe the process characteristics of corresponding steel types; data preprocessing: data alignment based on the model is carried out, synchronization relation of process input and quality output is built and data dimensionless treatment is carried out to eliminate effect of process data on modeling precision owning to non-unity of physical units; an off-line model building; a PLS (partial least square) model for strip steel quality and process variable is built by utilizing a great amount of historical data in normal working conditions; determining control limit of an monitor-control index; determining variable quantity control limit; and on-line forecasting and on-line detection and fault diagnosis. In the invention, the model for the strip steel quality and the process variable is built by PLS algorithm, so as to realize real-time quality forecasting, process monitoring and fault diagnosis.
Owner:SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE +1

G-N wave model-based forecast method for large-amplitude motion of ship in severe sea condition

The invention discloses a G-N wave model-based forecast method for a large-amplitude motion of a ship in a severe sea condition, and belongs to the technical field of ship motion forecast. Through nonlinear simulation of the motion of the ship in waves, a nonlinear effect of an incident wave force and a hydrostatic restoring force of a ship body is considered, and an incident wave pressure on thewet surface of the ship body is calculated. A fluid pressure is solved based on a G-N wave theory, so that the incident wave force and a hydrostatic pressure are obtained; a radiation force and a diffraction force are solved by adopting an impulse response function method, wherein the wave surface of the diffraction force is obtained by a G-N wave model; and consistency correction can be performedin calculation. The large-amplitude motion of the ship is forecast by adopting a weak nonlinear motion equation based on coupling of three freedom degrees including heaving, pitching and rolling; RAOis calculated for analyzing motion characteristics of the ship; a simulated motion response time history significant valve, a motion extremum value and oscillation statistics are analyzed by utilizing a wave-by-wave analysis theory; and the motion of the ship body can be forecast more accurately.
Owner:HARBIN ENG UNIV

Grain condition alarm system, grain condition control system and grain bulk safety state discrimination method

InactiveCN102176274ASecurity Status Fast and AccurateOvercome ignorant analysisThermometer detailsAlarmsControl systemComputer module
The invention provides a grain condition alarm system. The system comprises a plurality of temperature sensors, a storage unit, an analysis unit and an alarm unit, wherein the temperature sensors are used for detecting the temperature of each position in the grain bulk; the storage unit is used for storing the detection position and time of each temperature sensor and the data of the detection temperature at the detection time; the analysis unit comprises a calculation module and a temperature difference comparison module; the calculation module is used for calculating the pre-detected temperature and the temperature difference between the actually detected temperature and the pre-detected temperature; the temperature difference comparison module is used for comparing the temperature difference with the temperature difference threshold in each detection position; the analysis unit also comprises a temperature comparison module; the temperature comparison module is used for comparing the actually detected temperature value with the temperature threshold in each detection position; when the temperature difference is not less than the temperature difference threshold or when the temperature difference is not less than the temperature difference threshold and the actually detected temperature is not less than the temperature threshold, the analysis unit sends out unsafety state information; and the alarm unit gives an alarm after receiving the unsafety state information. The invention also provides a grain condition control system and a grain bulk safety state discrimination method.
Owner:ACAD OF STATE GRAIN ADMINISTRATION

Mine side slope deformation monitoring and early warning system and early warning method thereof

The invention relates to the technical field of geological disaster monitoring, in particular to a mine side slope deformation monitoring and early warning system and an early warning method thereof. The early warning system is composed of a ground control subsystem, a space wireless communication network and a communication auxiliary subsystem of monitoring workers, wherein the ground control subsystem, the space wireless communication network and the communication auxiliary subsystem are used for carrying out communication connection. The ground control subsystem is composed of a GPS mine side slope monitoring subsystem and a GPS monitoring data processing subsystem. The GPS monitoring mine side slope subsystem comprises a set of displacement measuring robots, a receiving antenna, a data transmission module, a GPS receiver and a power supply system, wherein the GPS receiver is used for receiving mine side slope deformation data collected by the displacement measuring robots. Various data are collected in real time, the monitoring data are processed, and the uploaded data are fast and automatically stored, transmitted, updated, counted and managed. The mine side slope deformation monitoring and early warning system has the advantages that the mine side slope displacement is dynamically monitored in real time, and safety production of a mine is guaranteed.
Owner:ANSTEEL GRP MINING CO LTD

Global earthquake geomagnetic anomaly big data monitoring and early warning system based on mobile Internet, and monitoring and early warning method

The invention discloses a global earthquake geomagnetic anomaly big data monitoring and early warning system and a monitoring and early warning method based on a mobile Internet. The system provided by the invention comprises a mobile terminal. The mobile terminal is in bidirectional connection with an intermediate layer. The intermediate layer is in bidirectional connection with a main control cloud end. The intermediate layer comprises a distributed cloud computation unit, a distributed mass storage unit, an automatic structured distribution unit and a data filtering unit. The main control cloud end comprises a comprehensive analysis unit, a decision-making unit and a management subsystem. The global earthquake geomagnetic anomaly big data monitoring and early warning method based on the mobile Internet is characterized in that the mobile Internet is used to collect data collected by an intelligent mobile phone or a tablet personal computer, the main control cloud end is used to analyze the data, and a magnetic field abnormal value is obtained and fed back to the intelligent mobile phone or the tablet personal computer for visually displaying a magnetic field abnormity distribution state. Through the analysis of the main control cloud end, a user is enabled to obtain data of great reference value.
Owner:陈毅然

Heavy pollution sequence case base-based region heavy pollution discriminating and prediction method and device

The present invention discloses a heavy pollution sequence case base-based region heavy pollution discriminating and prediction method and device and belongs to the atmospheric heavy pollution prediction technical field. The heavy pollution sequence case base-based region heavy pollution discriminating and prediction method includes the following steps that: a historical heavy pollution sequence case base of a target region is established according to collected pollution index data and meteorological element data monitored by each monitoring site of the target region, sequences in the case base are composed of meteorological element data; on the basis of the predicted meteorological element data of the target region in a certain future period, the sequence of the future period is obtained; and similarity comparison is performed on the sequence of the future period and the sequences in the historical heavy pollution sequence case base, so that the heavy pollution condition of the target region in the future period can be discriminated. With the heavy pollution sequence case base-based region heavy pollution discriminating and prediction method and device of the invention adopted, the accuracy of the prediction of the heavy pollution of the target region in a selected future period can be improved; and the accuracy of the prediction is high.
Owner:BEIJING MUNICIPAL ENVIRONMENTAL MONITORING CENT

System and method for remote control coal mine evacuation working face advance detection and forecasting

ActiveCN101798923AAvoid harmComply with the requirements of the Safety RegulationsSurveyMining devicesControl systemRemote control
The invention discloses a system and method for remote control coal mine evacuation working face advance detection and forecasting, which comprises a remote control system, a firing device, a blasting excitation system, a blasting receiving system and an anti-explosion geological advance detector host, and is characterized in that the remote control system comprises an anti-explosion computer, a remote controller master computer and a remote control slave computer; the anti-explosion computer and the remote control master computer are connected to realize duplex communication; the remote controller master computer is connected with the remote controller slave computer point to point through a cable; the remote controller slave computer is connected with the anti-explosion geological advance detector master computer to realize duplex communication; the remote control coal mine evacuation working face advance detection and forecasting system also comprises a synchronous signal detectionbox; and the output end of the firing device is connected with the synchronous signal detection box, the firing device outputs excitation signals to the blasting excitation system through the synchronous signal detection box, thereby preventing an operator from harm.
Owner:CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD

Grain condition prediction system, grain condition control system and grain bulk safety state judging method

InactiveCN102156007ASecurity Status Fast and AccurateOvercome ignorant analysisThermometers using electric/magnetic elementsUsing electrical meansControl systemPrediction system
The invention provides a grain condition prediction system that comprises a plurality of temperature sensors, a storage unit, an analysis unit and an alarm unit, wherein the temperature sensors detect the temperature of all positions in a grain bulk; the storage unit is used for storing the current detection data and the historical detection data; the analysis unit comprises a calculation module and a temperature change rate comparison module; the calculation module calculates the following parameters at each detecting position: practical temperature change rate, prediction temperature, prediction temperature change rate and the temperature change rate difference between the practical temperature change rate and the prediction temperature change rate; the temperature change rate comparison module is used for comparing the temperature change rate difference at each detection position with the temperature change rate difference threshold of the detection position; the analysis unit alsocomprises a temperature comparison module that is used for comparing the currently practical detection temperature value with the temperature threshold at each detection position; and an alarm can begiven under the alarm condition of whether the temperature change rate difference is more than or equal to the temperature change rate difference threshold at the detection position and whether the currently practical detection temperature value is more than or equal to the temperature threshold at the detection position.
Owner:ACAD OF STATE GRAIN ADMINISTRATION

Method of supplementarily forecasting steelmaking finishing point of converter

The invention relates to a method of supplementarily forecasting the steelmaking finishing point of a converter, belonging to the field of ferrous metallurgy. The method comprises the steps of: aiming at small and medium converters without dynamic detection equipment, calculating the addition quantity and oxygen consumption of auxiliary materials by an industrial control computer and a process database according to the initial converter blowing metal filling information and the target carbon content and temperature of molten steel at the finishing point; calculating the carbon content and temperature of a blowing process molten pool in real time according to the blowing process information; and calculating the content of Mn, P and S in the molten steel when the blowing achieves the finishing point. The method is applied in production practice of 80t converters, and test results show that the forecasting values on the compositions and temperature of the molten steel at the steelmaking finishing point of the converter by adopting the method are close to the practical value, an operator can be assisted for accurately controlling the steelmaking finishing point of the converter, thereby continuously improving the steelmaking finishing point control level of the converter.
Owner:UNIV OF SCI & TECH BEIJING

New method for surveying population density of microarthropods such as panonychus citri mcgregor, predatory mites and diaphorina citri kuwayama

The invention discloses a new method for surveying population density of microarthropods such as panonychus citri mcgregor, predatory mites and diaphorina citri kuwayama. The new method comprises the following steps of: randomly drawing a citrus sample plant; placing adhesive plate boxes below tree crowns in the east, south, west and north directions of the tree crown of the citrus sample plant; knocking branches of the tree crowns above the positions where the adhesive plate boxes are arranged for many times to drop the microarthropods; adhering the microarthropods falling in the adhesive plate boxes to adhesive plates of the adhesive plate boxes; collecting the adhesive plate boxes to perform statistical survey, wherein the adhesive plate boxes comprise box bodies; a layer of plate corresponding to the size of the bottom surface is arranged on the bottom surface of each box body; an adhesive material is coated on the upper surface of the plate; and thus, the adhesive plates are constructed. Thus, by surveying with the method provided by the invention, the used time is less, the sample can be stored for a long time, and most importantly, the detection sensitivity to the microarthropods of red spiders, predatory mites and the like is greatly improved; and since the detected objects are adhered and cannot escape, the detection is more convenient, simpler and more accurate.
Owner:GUANGDONG ENTOMOLOGICAL INST

Recreation facility intelligent monitoring apparatus based on multi-AGENT technology

InactiveCN101477339AFast, accurate and safe operationGuaranteed safe operationProgramme controlComputer controlRecreationEngineering
The invention relates to a recreation facility intelligent monitoring device based on multi-AGENT technology, which is characterized in that the recreation facility intelligent monitoring device takes an early warning Agent based on an immunological neuronic network failure predicting model, combines a DSP mode, a GIS mode and a GPRS mode, and cooperates with a plurality of Agents in a mode of specialization and cooperation to realize the functions of security monitoring and security early warning of recreation facilities. The recreation facility intelligent monitoring device has the advantages that: firstly, the multi-Agent technology is applied to real-time security monitoring of the recreation facilities, which is initiative in the field; secondly, the system has good openness, strong expansibility, strong portability and actual operability, and can be used in similar recreation facilities; thirdly, the system has good maintainability, can acquire a great deal of rich field equipment data through the signal acquisition Agents, and has the functions of on-line failure early warning, diagnosis, alarm and recording; fourthly, the system has strong security and high reliability, and the monitoring and early warning Agents based on an immunological neuronic network can quickly and accurately forecast equipment failure; and fifthly, the system guarantees secure operation of the recreation facilities and personal security of tourists, and has higher social effect and economic benefit.
Owner:SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE

Visual intercom indoor terminal with security and protection function

The invention discloses a visual intercom indoor terminal with a security and protection function. The visual intercom indoor terminal comprises a microprocessor, a security monitoring module and a smoke detection circuit, wherein the microprocessor is connected with a visual intercom module, the security monitoring module, an emergency power supply automatic switching module, an emergency evacuation module and a communication interface respectively, the security monitoring module comprises the smoke detection circuit, a temperature detection circuit and a fuel gas leakage detection circuit, the smoke detection circuit comprises a detection passage circuit and a reference passage circuit which are respectively connected into two input ends of a differential amplification circuit I, and the output end of the differential amplification circuit I is connected with a threshold comparing circuit I in series. The visual intercom indoor terminal has the beneficial effects that on one hand, danger situations can be accurately and quickly forecast by utilizing a multi-sensor fusion technology, and on the other hand, the visual intercom indoor terminal is arranged at vantage positions close to gates or passages, when accidents happen, emergency switches are automatically switched, and trapped personnel can be emergently guided and evacuated, so that great property loss and personnel injury accidents are prevented from occurring.
Owner:王一彬
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