34 results about "Strategy research" patented technology

The invention discloses an intelligent warehousing route planning method and system based on multiple AGVs. The method comprises the following steps: S100, defining a task distribution rule; dividing the priorities when the storage tasks are generated; S200, adjusting the dynamic priority; carrying out dynamic priority adjustment on the task of the AGV load in transportation; S300, planning an optimal path: dynamically and accurately calculating and locking a time window to reset a path so as to avoid conflicts, respectively carrying out coping strategy research on predictable vertical meeting conflicts and opposite meeting conflicts, and finally finding out a conflict-free shortest path; s400, predictively avoiding a conflict strategy; carrying out traffic rule making and unpredictable conflict detection and processing on traffic problems which may be encountered by a plurality of AGVs in the transportation process of a storage workshop. According to the system, the time cost of warehousing workshop tasks is reduced to the minimum, it is guaranteed that the path cost of the AGV is the minimum under the condition that vehicles are free of collision, and meanwhile the task scheduling efficiency and the vehicle scheduling efficiency are improved.

The invention discloses a dynamic simulation system of an offshore wind power power-transmission and grid-connected system through a VSC-MTDC. A main circuit frame of a grid-connected system is given, a design scheme of a monitoring system is improved, a monitoring system framework based on a central monitoring system and convertor station monitoring system double-layer structure is provided, an interface scheme of a fan simulation device monitoring system and a convertor station monitoring system is given, and a coordination control method between VSC-MTDC power transmission system network side converter stations is designed. The dynamic simulation system is advantageous in that a reliable and convenient research platform is provided for a system scheme of the offshore wind power power-transmission and grid-connected system through the VSC-MTDC, control system design, control strategy research and dynamic response characteristic analyses, and a good test environment is provided for system engineering development and debugging.

The invention discloses a mobile phone signaling data-based urban transportation characteristic determining method, which comprises the steps of preprocessing mobile phone signaling data and quickly extracting an available field to form a storage format employing a user ID as a key field; sorting mobile positions of each user according to time and carrying out denoising according to a speed and angle exception judgment method; forming a convergence point by using a DBSCAN clustering algorithm, and identifying all stay points and stay time of each user every time; and classifying the stay points and calculating the urban traffic generation amount, the traffic attraction amount, the travel times, the average travel times, the travel distance, the commuting trip distance, the living index and the employment index. The urban traffic generation amount, the traffic attraction amount, the travel times, the average travel times, the travel distance, the commuting trip distance, the living index and the employment index are quickly and relatively accurately calculated by fully utilizing mobile phone signaling data, and data support is provided for urban transportation planning, traffic management and traffic strategy research.

The invention discloses a test stand for a video-ranging offshore platform crane heave compensation control system. The test stand comprises a hydraulic oil source, a hydraulic control valve, a control handle, a hydraulic winch, a direct-pump-controlled electrical-hydraulic heave compensation device, a control computer, an industrial camera, a rack, an analog load, a six-degree-of-freedom platform, a power distribution control cabinet and a tension sensor. By using the test stand, the video-ranging offshore platform crane heave compensation control system can be conveniently tested, the operation process of a conventional offshore platform crane can be simulated and tested, the control performance of a machine-vision offshore platform crane heave compensation motion control system can be judged through detecting the tension of a steel wire rope, and the control strategy research of the machine-vision offshore platform crane heave compensation motion control system can be carried out through comparing with the conventional offshore platform crane; and the test stand is compact in structure, convenient to use and wide in practicability.

The invention discloses an online motor monitoring apparatus which includes a data measuring module (10), a data processing module (20), a data acquisition module (30), an upper computer monitoring platform (40), a drive circuit module (50) and a power circuit module (60) which are successively connected. The monitoring method includes acquiring motor parameters by using the data measuring module, the motor parameters undergoing the data processing module, the data acquisition module performing high-speed acquisition on the motor parameters, at the same time transmitting the acquired data to the upper computer monitoring platform so as to process, display, store and playback the motor parameters and performs alarm shutdown, thus achieving man-machine interaction. According to the invention, the apparatus improves traditional detection methods by utilizing online monitoring technology, and can monitor the operation states of the motor in a more accurate and real-time manner. The apparatus has great values in control strategy research and fault analysis of a motor speed regulation system. The online motor monitoring apparatus and fault diagnosis inevitably hold the key to future development.

The invention discloses a dual motor position synchronous control strategy research design, and belongs to the technical field of multi-motor coordinated synchronous control. According to the controlalgorithm, a position ring and a position synchronization ring are additionally arranged on the basis of the rotating speed current dual closed-loop. Giving of the position ring is given through the slope mode, including frequency giving and initial phase giving. The feedback of the position ring is the mean of the load position carried by the two motors. Giving of the synchronization ring is given through the step mode. The feedback of the synchronization ring is the difference value of the load position carried by the two motors. The output of the synchronization ring acts as the position compensation to the rotating speed ring, and one motor gives positive compensation and the other motor gives negative compensation. According to the control algorithm, control of the initial phase, theposition difference and the rotating speed of the two motor positions can be realized and the dynamic performance is great.

The invention provides an airplane rising, landing and taxiing performance comprehensive verification platform integrating airplane inertia simulation, lateral wind load simulation, taxiing speed simulation, runway state simulation and brake control and very high in universality, and by means of the airplane rising, landing and taxiing performance comprehensive verification platform, all-factor simulation and testing evaluation in the airplane rising, landing and taxiing processes can be achieved. The airplane rising, landing and taxiing performance comprehensive verification platform comprises an aircraft simulation system, an undercarriage airplane system, a braking system, a lateral wind simulation loading system, a runway simulation system, a measurement and control and simulation system and the like. By means of the airplane rising, landing and taxiing performance comprehensive verification platform, the taxiing speed, the course heading, the loading force and the braking torque can be measured, and visual simulation and braking control strategy researches can be conducted as well. The airplane rising, landing and taxiing performance comprehensive verification platform can provide an early-period theory, simulation and experiment basis for active-service or researched aircraft landing gear system design, taxiing control rate design and whole airplane inertia optimal allocation. The problem that at present, the control strategy can only be researched at the test flight taxiing stage is solved, and thus the cost and risks of out-field taxiing tests are greatly lowered.

The invention provides a multi-thread deterministic method based on cache optimization. The multi-thread deterministic method comprises a thread deterministic structure module, a multi-thread communication isolation module, an atomic transaction stage division module, a thread synchronization strategy research module and LIRS cache optimization. The method can be used for guaranteeing thread deterministic execution of tasks in a multi-thread system, extra system overhead brought by a deterministic method is optimized, and synchronous competition and data competition brought by thread uncertainoperation are prevented. Thread operation stages are divided by taking transactions as units, threads are executed in parallel in the parallel stage, thread communication is isolated, and a fence isset for global synchronization. And the thread in the serial stage obtains tokens through a deterministic sequence, and executes submission to a memory in sequence to execute deterministic scheduling.Due to the fact that communication isolation between threads and caching become the last-stage shared storage, an LIRS cache replacement algorithm more suitable for multiple threads is adopted to optimize the system performance, and therefore the system overhead is reduced while the multi-thread operation certainty is guaranteed.

The invention provides a stable-control load shedding method based on electrolytic aluminum control characteristics and relates to the field of electric systems and automatic control. In order to solve the problems that a safe stable control system of a power grid cannot shed a part of load generated by electrolytic aluminum to cause load over-shedding and electric safety accidents, the stable-control load shedding method disclosed by the invention is provided. The method disclosed by the invention comprises the steps: calculating sheddable rectifier unit number sections and sheddable load sections of an electrolytic actuating station; collecting all rounds of sheddable load and the total amount of a public actuating station; detecting whether elements have fault and calculating the totalamount of load to be shed; comparing the total amount of the load to be shed with sheddable load sections of the electrolytic aluminum and executing stable-control measures. The method disclosed by the invention can be applied to safe stable control configuration and strategy researches of the power grid, provides reference for stable-control load shedding systems related to electrolytic aluminumpower consumption load and meanwhile is suitable for designs of electrolytic aluminum automatic control systems.

The invention discloses an urban traffic congestion cost estimation method based on road grades and vehicle types. The method comprises the steps of collecting main macro and micro data related to urban traffic congestion; establishing an urban traffic congestion extra cost model, wherein the urban traffic congestion extra costs comprise the congestion extra time cost, the congestion extra fuel cost and the congestion extra environment pollution cost, all of which are worked out based on classification of the road grades and classification of vehicle types; estimating the value of the urban traffic congestion extra costs. According to the method, key factors influencing operation of a traffic system are comprehensively mastered through macro qualitative analysis and micro quantitative analysis. Thus, the method has the advantages of scientificity, comprehensiveness, universality, strong operability and the like and is of great practical significance for comprehensively learning urban traffic congestion conditions and researching congestion management strategies.

The invention relates to a method for establishing an energy-storage type double-fed wind power plant simplified model. A double-fed wind turbine generator and a storage battery energy-storage system are equivalent into an equivalent circuit formed by connecting an ideal controlled current source and an electric reactor in parallel, a double-fed wind turbine generator model and a storage battery energy-storage system model are respectively established according to the vector orientation control technology principle and are connected to form the energy-storage type double-fed wind power plant simplified model, and the model is solved according to the phasor method. The establishing and solving method for the energy-storage type double-fed wind power plant simplified model are suitable for simulating all wind turbine generators and energy-storage systems in the wind power plant for a long time, and the method can be applied to the fields of wind power plant equivalent establishing, wind power plant and energy-storage type wind power plant power coordination control strategy researches and the like and has high application value.

The invention discloses a heat performance test system, which can perform test experiment and performance estimation on the heat storage/release performance of a heat storage device with high power and a wide temperature range and the heat exchange performance of a large-sized heat exchanger. The system consists of a test and control system, a heat energy production and storage system, a pressurestabilizing system, a tested device assembly, a pump valve assembly and the like, and can implement a test under a relatively wide temperature and pressure range. The system can also simulate outputting of unstable heat energy such as regenerable energy and implement a performance test and an operation strategy research on a large-scale medium and high-temperature heat storage device array, and can meet work such as a research and development test on key components of a compressed air energy storage system.

The invention discloses a well pattern model designing method for horizontal well fractures. The method comprises the steps that on the basis of actual geological parameters, a conceptual model of a target oil reservoir is established with Eclipse reservoir numerical simulation software; an injection fractured horizontal well and a production fractured horizontal well are deployed, and the fractures have identical intervals and lengths and are staggered; an interval between adjacent fractures of the fractured horizontal wells is taken as a research range; a balance area is arranged according to physical properties of reservoir rock, distribution characteristics of fluid physical properties and percolation characteristics of an injection and production well control area; balance interval threshold breakthrough pressure is set for the balance area, so that start-up pressure of the oil reservoir can be simulated approximately, and the well pattern model for the horizontal well fractures can be established. The method is clear in mechanism, high in operability, effective and practical, broad in popularization and application prospect and substantial in economic and social benefit, and a scientific and reasonable numerical simulation model is provided for development strategy research of fractured horizontal wells for dense reservoirs.

The invention relates to a pure electric manual shift gear car power assembly and a control strategy thereof. The pure electric manual shift gear car power assembly is characterized in that a power assembly part comprises a special driving motor of an electric vehicle and a controller; a gearbox adopts a 5-gear manual gearbox; and a DCDC and a charger adopt mature products to match a correspondingair compressor, a high voltage distribution box, a vacuum booster system and an electric steering system so as to guarantee that a power assembly system can be implemented. The control strategy has six modes, which are respectively an initial mode, a static mode, a no-load idling mode, a power mode and a stalling mode. The strategy research on different modes of the vehicle from a static state tostarting, to the normal running of the vehicle, to the follow-up normal gear shifting and so on, consistencies between the modes, such as the static mode, starting mode, the gear shifting mode and soon, of the vehicle and those of the traditional gasoline engine vehicle are guaranteed.

The invention provides a receiving end grid stability control load shedding method based on a WAMS, which relates to the field of power systems and automated control and is invented for solving that influence degree of faults to each node is not reflected when all the loads participate in shedding in the conventional receiving end grid stability control load shedding offline decision-making method. The method provided by the invention comprises the following steps: calculating total amount of loads needed to be shed according to preconceived accidents; calculating a load shedding coefficient of each node according to a power flow tracing algorithm; calculating load shedding amount of each node and issuing a strategy; judging operation work conditions and executing stability control measures. The method provided by the invention is applied to configuration and strategy research of grid safety stability control, and provides a real-time decision-making feasible scheme for a receiving endgrid stability control load shedding system.

The invention discloses a multi-user cooperative spectrum sensing strategy research method oriented to 5G. The method in the invention does the research focusing on a decision fusion technology in cognitive radio cooperative sensing in a 5G environment and aims to solve the estimation problem of detection reliability of a fusion center to a detection node. According to the method in the invention,the detection reliability of each detection node is estimated through a probability statistic manner; meanwhile, the sparsity of a wideband frequency spectrum is used for researching a wideband frequency spectrum cognitive method based on a Block Orthogonal Matching Pursuit BOMP algorithm; the method uses modulation wideband converter (MWC) sampling to realize direction compression sampling of awideband simulation signal and uses the autocorrelation matrix symmetric decomposition characteristic and system user signal independence to obtain a finite-dimension compression sampling signal model. The method in the invention also introduces an AIC/MDL rule of an impact factor to estimate the sparsity as a condition for iteration stop of the BOMP algorithm, thereby greatly reducing the algorithm complexity and delay generated during sensing.

The present invention provides a management system for utilizing code identify management insurance inoculation product. The system includes a system computer, a terminal, a printer, an input device, a product code information database, a code generator, a product code table database, a product code scutcheon, a product warehouse management system, a product financial management system, a product object picture database, a manufacturer information database, a management of vaccinate site, a safety monitoring system of vaccinate. Since using the product code scutcheon provided by the invention as identification card preventing the inoculation goods access the management system, the register product code replaces the previous sorts, factory, preparation formulation, norm, technics etc of the register goods, the working efficiency is enchanced 4 times and reducing the error, and achieving the data share of each business module of the vaccinate administration section, having important meanings to improve medical management level and the disease prevention control Strategy research.

The invention discloses a quantitative transaction data processing system and method based on a cloud platform. The quantitative transaction data processing system comprises a strategy research and development device which is used for compiling a financial strategy set by a user into a corresponding strategy execution file, wherein the financial strategy comprises a transaction strategy; a strategy back test device which is used for carrying out back test on the financial strategy according to historical financial data and the strategy execution file so as to verify the validity of the financial strategy; and a transaction execution device which is used for receiving the strategy execution file of the transaction strategy verified by the strategy back test device, and operating the strategy execution file of the transaction strategy according to the real-time transaction data acquired from the transaction system to generate a first transaction instruction, so that the transaction system performs transaction operation according to the first transaction instruction. According to the invention, the technical problem of insufficient transaction strategy accuracy of a quantitative transaction system built by individuals in the prior art is solved.

The invention discloses a strategy research method of a software engineering major employment mode based on extenics. The method comprises: S1, defining a problem and establishing an extension model;S2, expanding the problem, performing extension transformation on the problem, judging whether the problem is an incompatible problem or not, if yes, entering S3, and if not, entering S5; S3, generating an extension strategy; S4, evaluating the extension strategy; S5, popularizing an extension strategy. The problem that there are many graduation students in the software engineering major in Chinaevery year, but shortage of advanced software talents becomes a bottleneck restricting rapid development of the software industry in China is solved.

The invention discloses a hardware-in-loop experiment platform for an electric control system of a liquefied petroleum gas engine, and the experiment platform comprises an upper computer system which is provided with a built-in liquefied petroleum gas engine simulation subsystem and a built-in communication and sensor signal reproduction collection subsystem. The liquefied petroleum gas engine simulation subsystem is used for calculating the state data of the liquefied petroleum gas engine under various working conditions. The communication and sensor signal reproduction collection subsystem is used for receiving calculation data, converting the calculation data into a sensor signal, transmitting the sensor signal to a liquefied petroleum gas engine electric control system, and collecting, transmitting, displaying and storing related signals. The experiment table can achieve various types of testing of the liquefied petroleum gas engine electric control system, solves problems of high danger coefficient, high cost, long period and poor repeatability in a development process of the liquefied petroleum gas engine electric control system during installation testing through a real machine, and provides a reliable test platform for the control strategy research and the algorithm design and verification of the liquefied petroleum gas engine electric control system.

The invention discloses a wind power regulation experiment system based on hybrid energy storage. Different energy storage modes are combined, energy storage characteristic complementation can be realized. The wind power regulation experiment system is applied on wind fluctuation power adjustment and realizes wind power stabilization. The wind power regulation experiment system is mainly composed of a wind power simulation system, a wind power output system and a wind power regulation system. Furthermore the invention provides a specific design method for the system. According to the wind power regulation experiment system, a hybrid energy storage system is composed of a battery and a super-capacitor. Integral performance of the energy storage system is improved, and real-time adjustment for wind fluctuation power is realized. The invention provides a DC/DC converter main circuit graph, a driving circuit graph, a voltage sampling circuit, a current sampling circuit and an interruption control program. By means of an experiment platform, experiment research, wind power stabilization strategy research and energy storage control technology research of the energy storage technology in wind power system power adjustment can be performed. The wind power regulation experiment system can lay the good basis for application of related theory on engineering practice.