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45 results about "Field experience" patented technology

Controlled deployment of software in a web-based architecture

The present invention includes systems and methods for the controlled deployment of software in a web-based environment where multiple versions of a single application are supported to provide field experience of various versions before general deployment. The systems and methods of the invention support backwards compatibility, which allows older versions of the same software to be accessed concurrently with newer (revised) versions. Likewise, data item opaqueness is supported whereby data items not recognized by a software level or tier are not rejected but are passed on to another tier or level where they may be recognized.
Owner:UNITED PARCEL SERVICE OF AMERICAN INC

Stratification developing method for complex fault block thin oil reservoir

ActiveCN103993862AIncrease the level of reserves utilizationImprove the development effectFluid removalField experienceSoil science
The invention discloses a stratification developing method for a complex fault block thin oil reservoir. The method comprises the steps that the structure of the oil reservoir to be developed and the magnitude of edge-bottom water oil reservoir energy are determined; on the basis of determining the structure, fine geological stratification is achieved, and development units are detailed to single sand bodies; on the basis of fine geological stratification, the reservoir properties of all the single sand bodies are evaluated, and the spacing layer distribution conditions and physical characteristics of all the single sand bodies are determined; on the basis of determining reservoir evaluation, the residual oil distribution law and residual recoverable reserves of all the single sand bodies are determined through development effect analysis; after the residual oil distribution law is determined, series of strata recombination boundaries of horizontal well deployment target layers and vertical well drilling reservoir are obtained by utilizing numerical simulation in combination with field experience; on the basis of determining the conditions, according to the stratification developing technology, well pattern overall planning and deployment are carried out, and the stratification developing scheme is complied. According to the stratification developing method, the usage degree of the oil reservoir reserves can be increased, the development effect of the oil reservoir can be improved, and the recovery efficiency of the oil reservoir is enhanced.
Owner:PETROCHINA CO LTD

Controlled deployment of software in a web-based architecture

The present invention includes systems and methods for the controlled deployment of software in a web-based environment where multiple versions of a single application are supported to provide field experience of various versions before general deployment. The systems and methods of the invention support backwards compatibility, which allows older versions of the same software to be accessed concurrently with newer (revised) versions. Likewise, data item opaqueness is supported whereby data items not recognized by a software level or tier are not rejected but are passed on to another tier or level where they may be recognized.
Owner:UNITED PARCEL SERVICE OF AMERICAN INC

Audio signal mixing processing method and device

InactiveCN102270456AClear voiceImprove the sense of presence experienceTelevision conference systemsSpeech analysisComputer terminalAudio frequency
An embodiment of the present invention provides an audio mixing processing method for audio signals. The method includes: determining a terminal that needs to adjust a location of an audio signal, and adjusting location information about the audio signal for the terminal; and performing audio mixing processing for the audio signal whose location is adjusted and other signals to be audio mixed. An embodiment of the present invention further provides an audio mixing processing apparatus for audio signals. According to the technical solutions provided in the embodiments, the audio location information about terminals whose audio signal locations overlap are adjusted, so that the location of each sending terminal is separated from each other as far as possible, and the sound of each sending terminal is more clear, thereby improving the field experience and feeling of a user.
Owner:GLOBAL INNOVATION AGGREGATORS LLC

Virtual and real fusion collaborative working method and apparatus for automobile technique simulation training

InactiveCN101477756ARealize virtual reality simulation training functionWith automatic scoring functionCosmonautic condition simulationsData switching by path configurationPhysical spaceThe Internet
The invention relates to a method and a device for virtual simulation of the automobile technology and practical training through teamwork. The device comprises an automobile technology practical training simulator (1), a remote control platform (2), a network interface (3), a campus network (4), a communication interface (5), a student test terminal (6), multimedia animation teaching software and other teaching resources (7), a test panel (8), a net wire (9) and a data wire (10). By combination of full simulation and semi-simulation, combination of simulation software and a real automobile assembly, combination of a piece of equipment and the internet, combination of practical operation and station simulation, a teamwork environment combining virtual simulation of the automobile technology and the practical training is established. The method and the integrated device can fulfill the purpose of establishing a complicated automobile technology simulating and training system in a certain physical space, in which a plurality of people can participate freely, faculties of touch, sight and hearing responding to each other interactively, and people can feel a sense of field experience.
Owner:TIANJIN UNITE AUTOMOBILE ELECTRONICS CONTROL TECH SERVICE

Semiconductor structure having plural back-barrier layers for improved carrier confinement

A semiconductor structure having: a channel layer having a conductive channel therein; a pair of polarization generating layers; a spacer layer disposed between the pair of polarization generating layers. The polarization generating layers create polarization fields along a common, predetermined direction. Each one of the pair of polarizations layers may be InGaN; InAlGaN; or quaternary InxAlyGa1-x-yN and x is greater than or equal to y / 2. The polarization generating layers create polarization fields along a common, predetermined direction constructively increasing the total polarization fields experienced by the channel layer to increase confinement of carriers in the conductive channel.
Owner:RAYTHEON CO

Multi-model adaptive pictorial information digitizer (PID) control of braking process of motor train unit

Disclosed is a fuzzy adaptive pictorial information digitizer (PID) control method of a motor train unit based on multi-model switch. According to the method, a data driving modeling method is proposed according to collected running process data of the motor train unit and field experience knowledge, the number of braking models is determined by means of subtraction cluster, and then a plurality of partial linear models describing a braking process of the motor train unit are established. The partial linear models adopt the recursive least-squares method to identify model parameters. At each sampling moment, an optimal partial model is selected based on the multi-model switch strategy, and the fuzzy adaptive PID control algorithm is adopted to control the braking process of the motor train unit, and therefore safe, punctual and effective running of the motor train unit is achieved. The multi-model adaptive PID control of the braking process of the motor train unit is simple, practical, capable of achieve multi-purpose control of the braking process of the motor train unit, and suitable for on-line monitoring and automatic control of the braking process of the motor training unit.
Owner:EAST CHINA JIAOTONG UNIVERSITY

Method for welding carbon steel and stainless steel composite plates

The invention discloses a method for welding carbon steel and stainless steel composite plates, and belongs to the field of technologies for welding bimetal composite plates. The method is characterized by comprising operation steps of (1), machining isosceles-triangular grooves in end surfaces of butt edges of composite plates A and B; (2), aligning to-be-welded edges of the composite plates A and B and filling welding wires in the grooves; (3); placing a stirring pin at an end of each butt edge seam, turning the stirring pin at a speed, applying pressure F to the composite plates by a shaft shoulder of the stirring pin, and enabling the turning stirring pin to move forwardly in the butt weld seam at a welding speed V to reach the other end of each weld seam. The lengths of the bottom edges of the isosceles-triangular grooves are 2b, the transverse heights a of the isosceles-triangular grooves are equal to a k, the k is a coefficient of a friction stir welding zone and can be a value larger than 1.0 and smaller than 1.1 according to field experience. The method has the advantage that the welding quality can be improved.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Method for distinguishing unreal rotating shaft vibration signals of steam turbine generator unit

InactiveCN109596357AReduce unplanned downtime incidentsEnsure safe and economical operationMachine part testingTime domainEngineering
The invention discloses a method for distinguishing unreal rotating shaft vibration signals of a steam turbine generator unit, which comprises the steps of collecting vibration signals by using an electric eddy-current sensor installed on each bearing of the unit, and performing the time domain analysis and the frequency domain analysis; establishing the characteristic data for identifying the authenticity of the abnormal vibration.; and according to the rotor dynamics, vibration fault mechanism and information fusion technologies, and combined with field experience, establishing the judgmentlogic of identifying the authenticity of abnormal vibration to determine whether the abnormal vibration is the real vibration state of the rotating shaft or not. If the abnormal vibration is not the real vibration state, measures are taken to eliminate the abnormal vibration and prevent the harm caused by the unreal rotor vibration data. The method can eliminate the false and preserve the true, overcome the shortcoming of setting the logic combination of vibration protection only by amplitude, reduce the false alarm and missing alarm, and provide an important guarantee for the safe and economic operation of the unit.
Owner:北京振测智控科技有限公司

Cultural landscape information acquisition and dissemination system based on IoT (Internet of Things)

The invention relates to a cultural landscape information acquisition and dissemination system based on the IoT (Internet of Things), which comprises a monitoring sensing device, a cultural information acquisition device, a server system, an information display terminal, a data transmission device and an energy supply system. The monitoring sensing device and the cultural information acquisition device transmit acquired information to the server system; the server system sends control information to the monitoring sensing device and the cultural information acquisition device; the server system is bidirectionally communicated with the information display terminal; and information display software running at the information display terminal carries out display and dissemination in various modes of a pattern, sound, a video, characters and the like. According to the cultural landscape information acquisition and dissemination system disclosed by the invention, by a sensor IoT system, safety monitoring and cultural information acquisition of a cultural landscape are implemented; omnibearing multi-dimensional information of the cultural landscape can be obtained; virtual experience of the cultural landscape can be carried out by the internet; and according to data, such as safety, climate and the like, which is acquired in real time, a safer and more reliable field experience route is made.
Owner:CHINA THREE GORGES UNIV

Digital resource long-term storage format outdating risk quantitative evaluation method

The invention provides a digital resource long-term storage format outdating risk quantitative evaluation method, which comprises the following steps of: presetting an initial evaluation questionnaire; determining model parameters according to the questionnaire, and constructing and optimizing an evaluation model; and integrating the answer of each user according to the evaluation questionnaire, and calculating a format outdating risk value according to the evaluation model. The evaluation method reuses field experience and knowledge on the format outdating risk through field knowledge quantification, reduces manpower demand, and provides convenience for sharing computer systems and utilizing information resources so as to meet the requirement on large-scale resource processing in a digital library and an archive.
Owner:TSINGHUA UNIV

Image processing method and image processing terminal

An embodiment of the invention discloses an image processing method. The image processing method comprises the following steps of shooting a panoramic image by using a camera of a 360-degree horizontal rotating terminal; recording shooting directions corresponding to various fragments in the panoramic image; storing the panoramic image in storage space of the terminal; monitoring an image processing mode of the panoramic image; determining the current orientation of a screen of the terminal when the image processing mode is a checking mode; determining the shooting direction corresponding to the current orientation of the screen of the terminal; invoking an objective fragment, which corresponds to the shooting direction, of the panoramic image; and displaying the objective fragment on the screen of the terminal. Each orientation of the screen of the terminal corresponds to a corresponding shooting direction of the panoramic image during shooting. The embodiment of the invention also discloses an image processing terminal. The image processing method has the advantages that the field experience effect on checking of the panoramic image can be improved, and the interestingness of panoramic photography of a mobile phone and user experience are improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Motion conversion device

A permanent magnet rotational motor employs the use of a rotating iron band member which absorbs the magnetic flux of both of the opposing magnet flux fields from stator and rotor magnets. This causes mutually opposing, interacting magnetic flux fields of the rotor and stator magnets to enter in close proximity to one another without opposition. This results in the two interacting fields remaining totally one within the other, until the iron band member between the two interacting fields is rotably extracted, compelling the two interacting opposing flux fields to repel each other and causing the rotor assembly to push the power assembly crankshaft in the desired direction. In this manner the aforementioned repelling and attracting effects between the interacting fields experienced in the prior art, which negates rotation in permanent magnet motors, is eliminated. The present invention also provides a device to maintain the necessary coactive relationship between the opposing magnetic fields of rotor and stator magnets throughout a complete rotational cycle of the permanent magnet motor.
Owner:LAWSON WILLIAM J

Method for calculating critical flowback velocity of fracturing fluid

ActiveCN109002565ASolve problems such as spit sandEliminate the influence of uncertainty on flowback velocityData processing applicationsFluid removalFracturing fluidField experience
The invention provides a method for calculating critical flowback velocity of fracturing fluid. The method includes the following steps: step 1, performing a settling velocity experiment of a proppingagent to determine the settling velocity of the propping agent; step 2, simplifying a settling model of the propping agent in a crack; step 3, simplifying a settling model of the propping agent in ahole; and step 4, deducing a critical flowback velocity calculation formula. The method eliminates the impact of uncertainties in current field experience on flowback velocity, determines the criticalvalue of the flowback velocity, and solves problems of sand spouting in stratums caused by the over quick flowback velocity.
Owner:CHINA PETROLEUM & CHEM CORP +1

Position and electromagnetic field sensor

A position and electromagnetic field sensor is provided. The sensor relies upon an oscillator such as a Robinson marginal oscillator to generate an rf or microwave electromagnetic field. As an inhomogeneously-shaped object, such as a metallic toothed wheel, for example, moves through the resultant field, the field experiences a change in electric or magnetic susceptibility. This in turn causes energy losses in the oscillator the magnitude of which can be output as a d.c. signal related thereto. To detect non-moving objects which nevertheless generate an electromagnetic field or have attached to them a source thereof, the sensor may also include a giant or colossal magnetoresistive structure located adjacent the oscillator coil, the structure having an imaginary magnetic susceptibility which is strongly dependent upon the magnitude and direction of the field generated by or at the object to be sensed.
Owner:ISIS INNOVATION LTD

Sports event seat selection method and system

The invention provides a sports event seat selection method and system. The method comprises steps that a seat selection request is received; a free seat distribution graph is displayed; the selection information is received; the first option information is provided; a first experience indication is received; first experience data is displayed; the confirmation option information is provided; a seat selection indication is received; if the seat selection indication is not yes, displaying the free seat distribution graph, receiving the selection information, providing the option information, receiving the experience indication, displaying the experience data and receiving the seat selection indication are repeated till the seat selection indication is yes. The method is advantaged in that through watching visual angle pictures or historical sports event video data, field experience simulation of selected seats is carried out, clients are facilitated to determine whether satisfactory watch experience of the seats can be acquired, ticket purchasing user experience is improved, and a client watch satisfaction level is improved.
Owner:暴风体育(北京)有限责任公司

Base plate limestone karst stationing detection method

The invention discloses a base plate limestone karst stationing detection method, comprising a signal source, a detecting instrument and a signal processing unit. The signal source is driven by objects capable of swinging in water, such as living beings, other mechanical devices and the like to randomly walk to each place of the base plate limestone karst; the detecting instrument is arranged in a mine underground roadway and is used for detecting signals transmitted by the signal source and inputting the signals to the signal processing unit; the signal processing unit processes the received signals and obtains the position of the signal source, and can count to obtain developing areas and a distribution rule of the base plate limestone karst by combining with field hydrogeology data and field experience according to the positions of a plurality of signal sources. The invention has simple structure, low cost and lower requirement on construction technical staff, can be popularized at site and is less influenced by geological conditions.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Method for optimizing technological parameters of prestressed duct circulation grouting construction

PendingCN107330171AReflect the quality of groutingOptimizing Circulation Grouting Construction Technological ParametersGeometric CADDesign optimisation/simulationPre stressGeometric modeling
The invention discloses a method for optimizing the technological parameters of prestressed duct circulation grouting construction. The method includes the steps of establishing the geometric model of a prestressed duct according to the parameters of the prestressed duct; conducting mesh generation on the flow field of the prestressed duct, and establishing the calculation model of the prestressed duct; setting up numerical simulation calculation conditions according to material parameters, and calculating to obtain the simulation results of the circulation grouting construction of the prestressed duct; changing the parameters of prestressed duct and / or the numerical simulation calculation conditions, obtaining multiple simulation results, and screening the construction parameters corresponding to the best simulation result. The method uses an analogue simulation technology to establish the prestressed circulation grouting model consistent with an actual system, simulate a circulation grouting process and optimize the technological parameters of the circulation grouting construction according to the simulation results after multiplicating simulation, thereby providing optimization guidance for the circulation grouting construction, and reducing grouting quality defects which likely appear in experienced construction in construction sites.
Owner:WUHAN HUAZHONG UNIV OF SCI & TECH TESTING TECH CO LTD +1

Moving video collection and playing method and system

ActiveCN106162092AEnhance the sense of presenceImage enhancementImage analysisField experienceCable television
The invention discloses a moving video collection and playing method and system. The method comprises the steps of collecting a real-time video of a moving target through a camera under a preset background; identifying the preset background of the real-time video and removing the preset background, thereby obtaining a processed video target only having the moving target; and carrying out overlapping playing on the video target and a preset video. According to the method and the system, the video target is obtained by removing the preset background of the collected real-time video of the moving target, overlapping playing is carried out on the video target and the preset video, and the field experience of a user in a television application is enhanced.
Owner:SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD

Method for realizing service by hydraulic bracket expert system along with hydraulic bracket

InactiveCN102176240AImplement companion servicesReliable and accurate standardized serviceData processing applicationsAdvanced manufacturingField experience
The invention discloses a method for realizing a service by a hydraulic bracket expert system along with a hydraulic bracket. The service is realized by the hydraulic bracket expert system along with the hydraulic bracket in the whole life cycle comprising the designing, manufacturing, selling, using, scrapping and the like of the hydraulic bracket. The hydraulic bracket expert system consists of a knowledge base and self-programming software, wherein the knowledge base integrates related regulations, procedures and norms, modern designing methods, inherently safe design concept, advanced manufacturing technologies, cost control management, standard sales services, various home and abroad open publications, network resources and a great number of field experiences; and the self-programming software has logical reasoning capability, rapid retrieval capability and a friendly interface, and is simple and convenient to operate.
Owner:ANHUI UNIV OF SCI & TECH

Slope maintenance method

The invention relates to a slope maintenance method. The slope maintenance method comprises the following steps of (1) fixing non-woven fabrics on a slope sown with seeds, and performing watering maintenance on the slope; wetting soil with the depth of 12-18cm during maintenance for the first time; keeping a surface layer, with the depth of 6-7cm, of the soil moist after 18-20 days; and removing the non-woven fabrics when the heights of vegetations on the surface of the slope are 5-10cm, watering the vegetations three times every week, wetting the soil with the depth of 1-2cm every time, and guaranteeing that the total watering time is not less than 30 days; (2) performing topdressing according to N:P:K=1-2.5:0.5-1.5:15-20g / m(2) during seedling stage of the vegetations on the slope, and performing topdressing according to N:P:K=8-12:6-8:4-6g / m(2) after seedling; and (3) spraying broad-spectrum agents during seedling stage of the vegetations on the slope. By using the slope maintenance method, field experiences are combined with experiments; a feasible solution is provided for solving the problem that later maintenance is difficult in a slope spraying technology; and the slope maintenance method facilitates greening of the domestic slope engineering.
Owner:YANGTZE UNIVERSITY

Stereoscopic terrain simulation and display equipment

The invention relates to stereoscopic terrain simulation and display equipment. The stereoscopic terrain simulation and display equipment comprises a dynamic display unit and a control cabinet, and the dynamic display unit is arranged in the control cabinet; the stereoscopic terrain simulation and display equipment further comprises a control cabinet top sealing assembly and a lifting assembly, the control cabinet top sealing assembly is arranged at the upper portion of the control cabinet and is buckled with the control cabinet to form a cavity used for placing the dynamic display unit, and the lifting assembly is arranged at the upper side of the control cabinet top sealing assembly and is used for controlling the control cabinet top sealing assembly to move upwards or downwards. The stereoscopic terrain simulation and display equipment has at least one of the following advantages that through the stereoscopic display equipment composed of an array of hundreds of dynamic display unitbodies side by side in the transverse direction and the longitudinal direction of the dynamic display unit, the equipment can adapt to different occasions. Through a telescopic probe, a rugged planecan be formed, color is displayed through an RGB display control unit on the telescopic probe, thus the effect of stereoscopically displaying the terrain can be achieved, and the field experience of asimulation area is improved.
Owner:郭纪光

Cloud provider system applied to smart hotel

The invention discloses a cloud provider system applied to a smart hotel. The cloud provider system comprises a server and a plurality of fore-end subsystems, wherein each fore-end subsystem comprises a display and a network set-top box; each display is connected with the server through the corresponding network set-top box; the server comprises a hotel scene experience module, a commodity customizing module, an order transfer module and an evaluation module; the hotel scene experience module comprises a scene experience guiding sub module and a commodity information display sub module; the commodity customizing module comprises a commodity order page sub module, an order counting sub module, an order storage sub module and a payment module; the order transfer module comprises a commodity operator counting sub module, a commodity transportation recording sub module and a commodity receipt information counting sub module; the evaluation module comprises a commodity evaluation sub module, an operator rating sub module and a logistics evaluation sub module. According to the cloud provider system disclosed by the invention, field experience of commodities is provided for consumers at the hotel and the transaction is finished through an official website, so that the shopping experience of the consumers is improved.
Owner:成都怡云科技有限公司

A kind of welding method of carbon steel and stainless steel clad plate

The invention discloses a method for welding carbon steel and stainless steel composite plates, and belongs to the field of technologies for welding bimetal composite plates. The method is characterized by comprising operation steps of (1), machining isosceles-triangular grooves in end surfaces of butt edges of composite plates A and B; (2), aligning to-be-welded edges of the composite plates A and B and filling welding wires in the grooves; (3); placing a stirring pin at an end of each butt edge seam, turning the stirring pin at a speed, applying pressure F to the composite plates by a shaft shoulder of the stirring pin, and enabling the turning stirring pin to move forwardly in the butt weld seam at a welding speed V to reach the other end of each weld seam. The lengths of the bottom edges of the isosceles-triangular grooves are 2b, the transverse heights a of the isosceles-triangular grooves are equal to a k, the k is a coefficient of a friction stir welding zone and can be a value larger than 1.0 and smaller than 1.1 according to field experience. The method has the advantage that the welding quality can be improved.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Open pit mine cast blasting effect analysis method

The invention discloses an open pit mine cast blasting effect analysis method which is characterized in that an AHP-CM evaluation method is provided for making research on a relation of an open pit mine cast blasting operation effect and a cast blasting influence factor and determining the cast blasting effect. The method comprises the following steps: determining that cast blasting effect influence factors mainly comprise unit explosive consumption, a limit vibration speed, an effective cast rate and a bulk factor according to related documents and open pit mine cast blasting field experiences, and grading cast blasting effects; representing a relation between the cast blasting factors and the cast blasting effects by virtue of the characteristic of a cloud model (CM) that data discreteness, fuzziness and randomness can be represented; obtaining weights of influence of these factors on the cast blasting effects by virtue of AHP; finally obtaining cast blasting effect grades of each group of influence factors. The method can be used for cast blasting effect analysis.
Owner:LIAONING TECHNICAL UNIVERSITY

Transformer protection method based on characteristics of excitation impedance fluctuation

The invention discloses a transformer protection method based on characteristics of excitation impedance fluctuation. The method comprises the following steps of firstly, when a differential protection device is started, extracting primary and secondary side voltages and a differential current power frequency of the transformer by using the semi-cycle Fourier algorithm, and calculating the excitation impedance of the transformer; studying the volatility of the excitation impedance in one cycle, and calculating a variance k1 and an impedance mean k2 of the excitation impedance in one cycle; setting fixed values kset1 and kset2 according to a large number of simulation and field experiences; considering that the transformer generates an excitation inrush current when k1 is greater than or equal to kset1; considering that the transformer has an internal fault or the faulty transformer is closed if k1 is less than kset1 and k2 is less than or equal to kset2; and considering that the transformer is running normally / has external fault if k1 is less than kset1 and k2 is greater than kset2. The method provided by the invention can correctly distinguish the excitation inrush current and theinternal fault of the transformer, avoid the incorrect operation caused by the false start of the transformer when no-load closing, and effectively improve the reliability of the protection action ofthe transformer.
Owner:STATE GRID SHAANXI ELECTRIC POWER RES INST +1

A Mobility Decision Modeling Method Based on Multimodal Physiological Information

The invention discloses a maneuver decision-making modeling method based on multi-modal physiological information, which directly extracts multi-modal physiological information from the process of people performing maneuvers, and constructs the model without relying on the experience summary of field experts. Knowledge discovery that does not rely on computers not only reduces the workload and saves labor costs, but also changes the modeling method from purely rational to perceptual, making the established model more realistic and closer to human behavior decision-making process; and, using multi-modal physiological information for maneuver decision-making modeling can also solve the one-sided problem of using a single physiological signal for maneuver decision-making modeling; in addition, an important advantage of using multi-modal physiological information is that its characteristics Objectivity. Compared with the traditional modeling method that relies on domain expert experience summaries, the collected data is more authentic and reliable, and can more objectively reflect the real maneuvering decision-making process of people.
Owner:BEIHANG UNIV

Fire scene experience virtual reality system

The invention discloses a virtual reality system for experiencing a fire-fighting scene. The virtual reality system comprises a fire-fighting virtual training interaction module, a fire-fighting training scene virtual electric control module and a practice training cabin, wherein the fire-fighting virtual training interaction module utilizes a 3D interaction technique to establish an entity high-precision model in high compatibility; the fire-fighting training scene virtual electric control module utilizes the combination of an environment control module and a digital-to-analogue conversion device to seamlessly connect the reaction behaviors of trainees in the virtual fire scene with the virtual equipment and scene objects in the fire scene; a special annular visual angle high-reflection developing carrier with a 5M diameter is used as an outer layer of the practice training cabin; and a 360-degree multi-channel curved fusing projection system which is composed of five sets of high-luminance image projection devices is arranged above the developing carrier. The virtual reality system does not consume the true fire-fighting equipment in the maneuver, does not pollute the environment and can guarantee the daily fire-fighting maneuver and skilled rescue skills of a fire-fighting commander.
Owner:SHANGHAI FIRE RES INST OF THE MIN OF PUBLIC SECURITY +1

Multi-model adaptive pid control for EMU braking process

Disclosed is a fuzzy adaptive pictorial information digitizer (PID) control method of a motor train unit based on multi-model switch. According to the method, a data driving modeling method is proposed according to collected running process data of the motor train unit and field experience knowledge, the number of braking models is determined by means of subtraction cluster, and then a plurality of partial linear models describing a braking process of the motor train unit are established. The partial linear models adopt the recursive least-squares method to identify model parameters. At each sampling moment, an optimal partial model is selected based on the multi-model switch strategy, and the fuzzy adaptive PID control algorithm is adopted to control the braking process of the motor train unit, and therefore safe, punctual and effective running of the motor train unit is achieved. The multi-model adaptive PID control of the braking process of the motor train unit is simple, practical, capable of achieve multi-purpose control of the braking process of the motor train unit, and suitable for on-line monitoring and automatic control of the braking process of the motor training unit.
Owner:EAST CHINA JIAOTONG UNIVERSITY
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