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308 results about "Research system" patented technology

Research Systems is a small company engaged mainly in telecommunications software, embedded systems and real time software development. Our principal engineer has in excess of 30 years experience in the IT industry, of which the more than 20 have been in software development for both Internet and communication oriented products.

Method of modulating the transmission frequency in a real time opinion research network

A computer-implemented transmission scheme is provided to control client-server interchanges within a distributed communications network, such as a real time opinion research system. Interchanges include transmitting media streams between one or more clients to a server over a computer network, including the global Internet. A polling management unit sets and manages the transmission mode that includes event-driven and periodic interchanges. Periodic interchanges can be simultaneously or staggeredly transmitted to a sampling pool of active clients. A transmission mode unit implements the transmission scheme set by the polling management unit. A parameter selector establishes the transmission interval and transmission period which are used to trigger each communication interchange. A client assignor creates one or more sampling classes from the sampling pool by applying a sampling quotient that is generated by the parameter selector. A schedule editor produces a transmission schedule for the active clients. If more than one sampling class has been created, each sampling class would receive a separate transmission schedule for providing staggered transmissions at designated transmission intervals. The transmission schedule can include other data preparation and formatting instructions for compression, aggregation and packetization.
Owner:ZARBANA DIGITAL FUND

Electromagnetic transient simulation method of electric system based on matrix exponential

An electromagnetic transient simulation method of an electric system based on a matrix exponential comprises the steps of establishing an electromagnetic transient simulation model, as shown in the specification, of the system to be studied under a state analysis frame, starting a simulation program after setting simulation step sizes delta t and relevant simulation parameters, forming an augmented state matrix with an excitation source g(t) of the current moment, each derivative information and a state matrix A in each simulation step size, solving the matrix exponential e<delta t A> by a Scaling and Squaring algorithm, performing matrix vector multiplication on an augmented state vector formed with a state variable vector x(t) and a p-dimensional unit vector, taking a result as a state variable of the current moment, obtaining an output vector y(t) through an output equation, writing into an output file, simulating and boosting one step size, and judging a short circuit, an open circuit and switch motion firstly in the next simulation step size. The method can achieve electromagnetic transient modeling simulation of the electric system with a complicated structure, asymmetric height, and the model having the characteristic of rigidity.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1

Helicopter combined model test device

PendingCN108593243AMake up for the lack of aerodynamic interference research capabilitiesSmall degree of obstructionAerodynamic testingAircraft components testingTail rotorModel test
The invention discloses a helicopter combined model test device. The helicopter combined model test device comprises a rotor wing test bench and a tail rotor test bench, a rotatable rotary table is arranged on the bottom of the rotor wing test bench, a pitch angle driving mechanism is arranged on the rotor wing test bench, the top of the rotor wing test bench is used for connecting a rotor wing ofa helicopter, the top of the tail rotor test bench is used for connecting a tail rotor of the helicopter, and the bottom of the tail rotor test bench is connected to a four-dimensional motion measuring frame. The helicopter combined model test device can realistically simulate the movement between the helicopter rotor wing, a fuselage and the tail rotor, and then the aerodynamic interference between the helicopter rotor wing, the fuselage and the tail rotor is studied; a horizontal tail, a vertical tail, a short wing, a hanging object and the like are added on a fuselage model, correspondingmeasuring devices are cooperatively arranged, the aerodynamic interference of other components such as the horizontal tail, the vertical tail, the short wing, the hanging object and the like is further studied to make up for the lack of research capability of aerodynamic interference between various parts of domestic helicopters, and a helicopter wind tunnel test research system in China is improved.
Owner:LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT

Fruit fly behavior researching system and method thereof

The invention relates to a fruit fly behavior researching system, belonging to the animal behavior field. The system comprises a fruit fly moving container, an image acquiring device, a stimulating device and a center device; the fruit fly moving container is used for supplying a moving space to the fruit fly with the specific protein; the image acquiring device is used for acquiring the fruit fly behavior image; the stimulating device is used for applying the external stimulation to the fruit fly; and the center device is connected with the image acquiring device and the stimulating device, used for controlling the image acquiring device and the stimulating device, recording the fruit fly behavior image and analyzing the fruit fly behavior. In addition, the invention also relates to a fruit fly behavior researching method. The method comprises the following steps of: applying the external stimulation to the fruit fly with the specific protein; acquiring the fruit fly moving image; and analyzing the fruit fly behavior according to the fruit fly moving image. In the system, the stimulation to the fruit fly, the behavior recording and analysis in the fruit fly behavior research are automatically carried out, so that the deviation brought by the experience or fatigue factors of the artificial observation and statistic can be eliminated. The system carries out the stimulation to the fruit fly with the specific points particularly, and improves the precision and efficiency of the analysis on the fruit fly behavior.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI

Large-scale power distribution network integral model simplification method applicable to electromagnetic transient simulation

The invention discloses a large-scale power distribution network integral model simplification method applicable to electromagnetic transient simulation. The large-scale power distribution network integral model simplification method comprises the following steps of: dividing a large-scale intelligent power distribution system into two parts, i.e., an external system and a research system; connecting the external system and the research system through a plurality of branches; establishing electromagnetic transient simulation models of the external system and the research system respectively; setting a low-dimension system model order q (q is less than n) according to a simulation actual demand and computing resource, wherein n represents order of the original external system model; selecting a base calculation method corresponding to the number of columns of a matrix B input in an external system state equation; performing re-orthogonalization processing on a base V by using a re-orthogonalization method; calculating that A' is equal to VTAV, B' is equal to VTB, C' is equal to CV and D' is equal to D to obtain a low-dimension simplified system model; and performing simulation computation in linkage with a detailed model of the research system in place of the original external system model to obtain a detailed transient process in the research system. According to the large-scale power distribution network integral model simplification method, the simulation calculation efficiency is increased, large-scale system analysis simulation is oriented, and inevitable choice of operation requirements under various on-line application scenes is met.
Owner:天津天成恒创能源科技有限公司

Widespread complex lithologic oil and gas reservoir formation mode evaluation system and method

InactiveCN102681027A"Tibetan" features are obviousPlay the role of sealing oil and gas reservoirsGeological measurementsLithologyProcess engineering
The invention aims to provide a widespread complex lithologic oil and gas reservoir formation mode evaluation and research system and method. The specific complex lithologic oil and gas reservoir formation mode is analyzed, and the widespread complex lithologic oil and gas reservoir formation mode of near-source high-pressure hydrocarbon supplying, fault fissure dredging and lower gas and upper water reservoir forming is established, wherein the near-source high-pressure hydrocarbon supplying is the precondition of the formation and the existence of the oil and gas system of the lithologic oil and gas reservoir, the fault fissure dredging is the necessary impetus condition of the hydrocarbon transportation dredging and the formation of the lithologic oil and gas reservoir filling, and the lower gas and upper water reservoir forming is the typical characteristic of the formation of the widespread complex lithologic oil and gas reservoir. Under the background of continuous upwards-inclined reservoir, the bottom of the oil and gas reservoir is short of continuous flowing water because the reservoir is usually the oil and gas layer and the dry layer, the upwards-inclined reservoir can become into the normal oil and gas reservoir along the upwards-inclined direction of the structure, and an oil-gas-water coexistence belt is formed between the upwards-inclined reservoir and the normal oil and gas reservoir. Due to the widespread complex lithologic oil and gas reservoir forming mode evaluation and research system, the theoretical support is provided for the exploration of the lithologic oil and gas reservoir, and the wide exploration prospect of the lithologic oil and gas reservoir is showed.
Owner:BEIJING NORMAL UNIVERSITY

System for researching material distribution rule of furnace top equipment

The invention relates to a system for researching a material distribution rule of furnace top equipment and belongs to the technical field of smelting. The system comprises a fully-emulational belt machine loading system, a fully-transparent furnace top material distribution equipment whole model, a fully-transparent furnace body partition research model, an enterprise-level high-speed camera shooting and analysis system and a test platform, wherein the fully-emulational belt machine loading system (1) is arranged at the top end of the whole set of system and is connected with a second layer of platform of the test platform (4) through a moveable bracket; a lower opening of the fully-emulational belt machine loading system (1) is connected with the fully-transparent furnace top material distribution equipment whole model (2); the lower end of the fully-transparent furnace top material distribution equipment whole model (2) is mounted on the fully-transparent furnace body partition research model (3); and a shooting terminal of the enterprise-level high-speed camera shooting and analysis system (5) is generally placed on a first layer of platform of the test platform (4). The invention has the advantages that the research system is comprehensive, complete, intuitive and accurate; and the test scheme is simple and practical, reliable in result and is a new breakthrough in the field of research on a blast furnace material distribution rule.
Owner:BEIJING SHOUGANG INT ENG TECH

Operation optimization method and device for multi-energy system based on hydrogen energy and energy storage equipment

ActiveCN110348709ARun the same strategyVariable operating strategyResourcesSystems intergating technologiesSolar waterOptimization problem
The invention discloses an operation optimization method and device for a multi-energy system based on hydrogen energy and energy storage equipment. The system is composed of a fuel cell, an electrolytic cell, an absorption refrigerator, a waste heat recovery device, a photovoltaic power generation system, a solar water heater, a wind generating set, a hydrogen storage tank, a compressor, a hot water tank and a cold water tank. According to the operation optimization method, a scene tree method is adopted to solve the randomness problem; and according to predicted values and deviations of windpower, solar radiation intensity, power demand, cold demand and heat demand, expected scenes of wind power generation, photovoltaic power generation, solar heat production and user electricity cold and heat demand are established, and mixed integer linear optimization is performed on the system by taking the minimum average operation cost under all scenes as a target so as to research the operation strategy of the system. In the optimization problem, the operation strategies of the fuel cell and the absorption refrigerator in all situations are kept the same, and the operation strategies of the electrolytic cell, the hydrogen storage tank, the hot water tank and the cold water tank in different situations are variable, so that the purpose of absorbing renewable energy sources is achieved.
Owner:XI AN JIAOTONG UNIV
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