6096results about How to "Reduce economic costs" patented technology

The invention discloses an optimizing and dispatching method for microgrid economical operation on the basis of multiple time scale coordination, comprising the following steps: dividing microgrid economical operation into two time scales, namely a dayahead plan and real-time dispatching; in the dayahead plan, dividing one dispatching period into a plurality of time intervals, and modelling into a mixed integer linear programming program based on the dayahead prediction data; and during the real-time dispatching period, complying with the startup and halt result of the dayahead plan, and modelling into a nonlinear plan based on real-time ultra-short term prediction data. In the optimizing and dispatching method, the coordinated mechanism of two time scales is designed, the dispatching scheme obtained with the method not only can satisfy the economic factors of a long time scale but also can satisfy safe operation constraints, such as the inner microgrid voltage, carrying capacity and the like of short time scales, and the capacity fluctuation of new energy is smoothened. The method is suitable for optimizing and dispatching economical operation in the parallel and single network operation of a micro power grid composed of a controllable power supply, an uncontrolled power supply and energy storage equipment of any type and any volume proportion.

The invention discloses a building method of a digital copyright tracing system based on a block chain and a cloud platform. The method comprises the following steps: designing a general framework of the digital copyright tracing system based on the block chain and the cloud platform; building a block chain consensus mechanism, wherein nodes in the block chain reach a consistent consensus on the aspects of node reliability and data real-time performance; designing a digital content storage way based on the block chain and the cloud platform, wherein the block chain stores a Hash function value formed after dimension reducing processing of digital content, and the cloud platform saves digital content on which a digital content producer performs a digital signature with a private key; building a digital content transaction platform based on the block chain to perform a registration transaction and an authentication transaction of the digital content; and building a digital content copyright tracing model, and performing tracing by using a chain-style relation of a Hash chain in the block chain. Through adoption of the method, safe and effective propagation of digital products can be realized, and the problem that digital content copyrights cannot be traced is solved.

The invention discloses an ARM (advanced RISC (reduced instruction set computer) machines) and FPGA (field-programmable gate array) based navigation and autonomous flight control system for an unmanned helicopter. The system comprises a PC (personal computer), an integrated navigation subsystem, a power supply module and controllers, wherein the integrated navigation subsystem comprises a sensor group; the sensor group comprises a GPS (global positioning system), a gyroscope, an accelerometer, a magnetoresistive sensor, a barometric altimeter and a sonar altimeter; the controllers include a main controller and a steering engine controller; the main controller adopts an ARM microprocessor to operate the integrated navigation algorithm and flight control PID (proportion integration differentiation) algorithm and simultaneously completes data acquisition of the GPS, the barometric altimeter and the sonar altimeter; and the steering engine controller adopts an FPGA to realize data acquisition of the gyroscope, the accelerometer and the magnetoresistive sensor and transfers the data to the main controller via a concurrent bus to carry out attitude calculation and control operation on the unmanned helicopter. With the unmanned helicopter as a carrier, the hardware environment of a whole set of flight control system integrating study of the aircraft navigation and control theory problem, data acquisition, information transfer and embedded control is set up.

The invention discloses an SAS hard disk and NVMe hard disk compatible hard disk backplane, and relates to the field of server hard disk backplanes. The integral structure of the hard disk backplane is a PCB board card on which a plurality of hard disk connectors and a CPLD are arranged, the hard disk connectors are SAS hard disk and NVMe hard disk compatible connectors, and are connected to the CPLD; and the CPLD can be used for automatically recognizing the types of connected hard disks, and is in communication with a BMC management module on a server mainboard through an I2C bus. According to the SAS hard disk and NVMe hard disk compatible hard disk backplane, an SAS hard disk and an NVMe hard disk use a same onboard connector and are compatible, so that the online change of the two hard disks is realized, the operation convenience is improved and the board card development cost is reduced; the management, carried out by the BMC management module, on the hard disk operation states and health conditions is realized; and by using different combinations of LED lamps, the current hard disk states are shown, so that convenience and visualization are provided.

A method for transmitting Ethernet data in a Digital Unit (DU) that processes a baseband and interfaces with at least two Radio Frequency (RF) Units (RUs) is provided. The method includes setting location information of two or more Ethernet channels in a first subchannel of a radio frame, allocating the two or more Ethernet channels in second subchannels of the radio frame, using the location information, and transmitting the radio frame to the at least two RUs.

The invention discloses a fault reconstruction method for a simple redundancy flight control system of a long-endurance unmanned aerial vehicle. The redundancy is formed for the measurement of key navigation information by using two devices of main and backup sensors on the basis of the non-similarity principle, and two redundancies are guaranteed on an execution mechanism, so that the simple redundancy flight control system is formed. A comparison is made between information of the main sensor and the information of the backup sensor; when the times of the deviation of the information of the main and backup sensors greater than the threshold in unit time are more frequency, one sensor is broken down; the fusion is implemented through other normal navigation information for locating the broken device; and when one execution mechanism is broken down, the influence of the broken mechanism is complemented through the rest normal execution mechanisms to guarantee the flight safety.

The invention discloses a video image processing-based fire detection system and detection method. A video acquisition module, a fire detection module, a fire analysis module, a fire judgment module and a fire alarm module are connected with one another so as to form the video image processing-based fire detection system; the video acquisition module acquires video images in the coverage area of a camera; the fire detection module performs background modeling and background updating on the video image and detects a foreground moving object; the fire analysis module analyzes the video images to identify a suspected flame region and extracts static characteristics and dynamic characteristics of the suspected flames; the fire judgment module adopts the static characteristics and dynamic characteristics of the suspected flames extracted by the fire analysis module as the input of a BP neural network so as to judge whether flames exist in a video; and the fire alarm module judges whether to give an alarm according to the output result of the fire judgment module. With an existing monitoring system used in combination, the video image processing-based fire detection system can decrease detection cost and greatly reduce a false alarm rate with fire detection accuracy ensured.

A method for forming a structure that includes a layer that is removed from a donor wafer that has a first layer made of a semiconductor material containing germanium. The method includes the steps of forming a weakness zone in the thickness of the first layer; bonding the donor wafer to a host wafer; and supplying energy so as to weaken the donor wafer at the level of the zone of weakness. The zone of weakness is formed by subjecting the donor wafer to a co-implantation of at least two different atomic species, while the bonding is carried out by performing a thermal treatment at a temperature between 300° C. and 400° C. for a duration of from 30 minutes to four hours.

Disclosed is a resettable roll-in type swinging seismic-isolation pier stud with flanges. The resettable roll-in swinging seismic-isolation pier stud is of a resettable seismic-isolation structure. The seismic-isolation pier stud comprises a main beam, piers, bearing platforms, semi-protruding spherical pier bottoms, pier flanges, rubber spacers, hollowed semispherical bearing platform tops, shape memory alloy shear bolts and oblique-section stoppers. The fixed connection of the piers and the bearing platforms is changed into swingable hinge connection. The spherical pier bottoms of the piers are embedded in the hollowed hemispheres of the bearing platform tops. The pier flanges are arranged on two sides of the upper portions of the spherical pier bottoms and are in anchorage connection with the bearing platforms via the shape memory alloy shear bolts. The rubber spacers are arranged between the semi-protruding spherical pier bottoms and the hollowed semispherical tops and between the bearing platforms and the pier flanges as well as between the sides of the pier flanges and the bearing platform stoppers. The pier stud is separated from the foundation, and seismic energy can be filtered by swinging, so that the piers and the foundation are protected. The resettable roll-in type swinging seismic-isolation pier stud has excellent social and economic benefits and worthy of popularization and application.

The invention discloses a method for economically and optimally dispatching cogeneration units. The method includes S1, determining safe and adjustable peak-load regulation ranges of the cogeneration units; S2, constructing mathematical model for unit load optimization under the consideration of electric load adjustment moments and creating multi-objective and multi-constraint unit load optimization objective functions; S3, designing a cogeneration unit multi-objective and multi-constraint load optimal dispatching scheme on the basis of a non-dominated sorting genetic algorithm (NSGA-II). The multi-objective and multi-constraint method for optimally dispatching the cogeneration units has the advantages that power generation load and heating load among the various units of an integral plant can be reasonably distributed in real time on the premise that safe, economical and environment-friendly running of the units is guaranteed, standard total coal consumption and pollutant emission of the integral plant are reduced to the greatest extent, power grid load adjustment can be quickly responded, the load competitiveness of each unit is improved, the integral plant can run at a low comprehensive economical cost, and the overall efficiency of the units is improved.

A method is disclosed for evaluating and predicting a shale oil enrichment area of a fault lacustrine basin, comprising: obtaining materials and key data; determining a source-reservoir configuration relationship according to a longitudinal superposition relationship of different types of rock in a lithology profile and establishing a single-well lithofacies model; in the single-well lithofacies model, using a dolomite-to-formation ratio and a TOC average value to form a dolomite-to-formation ratio contour map and a TOC contour map, and superposing the dolomite-to-formation ratio contour map, the TOC contour map and a source-reservoir configuration relationship plane distribution map to form a lithofacies plane distribution map; on the basis of the lithofacies plane distribution map, superposing a vitrinite reflectance contour map and a dolomite thickness contour map to obtain a corresponding evaluation and prediction map of the shale oil enrichment area of the fault lacustrine basin.

The invention discloses a peak-time avoiding parking method based on a cloud service platform. The method is used for improving the utilization rate of urban parking spaces and then alleviating the problems that the parking spaces are insufficient and it is difficult to park at present. Based on mastered comprehensive information of urban parking spaces, parking space resources can be reasonably distributed to car owners having the parking demands in time through the method. A peak-time avoiding parking management system based on the cloud service platform comprises a cloud service platform subsystem, a parking space information collection subsystem, a parking space information issuing subsystem and a parking charging subsystem.

The invention discloses a specific performance based consistency control method for multiple intelligent agents. The control method comprises that the intelligent agents as communication nodes establish a communication topology; neighbor node and self state information is obtained according to the communication topology; the state information includes the position and speed; a tracking error of aleader is calculated according to the state information; the specific performance of the tracking error is transformed via a design performance function, and a transformed error model is obtained; andaccording to the transformed error model, an event triggering adaptive controller of a follower is designed via a backstepping method and a dynamic surface technology, an event triggering mechanism is designed, and specific performance based consistency control for the intelligent agents is realized. A system can obtain expected transient performance and stable error in the control process rapidly and precisely, the communication cost among the intelligent agents can be reduced, the application range is wide, and the application value is high.

This invention relates to a non-destructive precise determination method for biophysical parameters of cotton. To the feature and growth characteristic of cotton, selecting SAVI2 and RVI (precision more than 80%) with high precision for LAI and CCD measurement on middle and final period; finding out a optimal wave band combination for NDVI as 705nm (wave width 20nm) and 780nm (wave width 40nm); and presents an empirical regression equation as Y=0.5287*R780 -0.202*R705+2.4575 for LAI measurement by high-spectrum reflection rate. Compared with prior art, this invention has precision more than 81.8% with simple process and no damage.

The invention discloses an additive manufacturing method for an electrical contact made of a copper-tungsten functionally gradient material. According to the method, by controlling the powder feeding speed of copper powder and the powder feeding speed of tungsten powder, the copper powder and the tungsten powder are mixed evenly and distributed through a powder distributor, a high-energy beam is used as a heat source, the mass fraction of tungsten molten and deposited on a copper substrate is increased as the number of formation layers is increased, and the electrical contact made of the copper-tungsten functionally gradient material changes gradiently. The tungsten content in the copper-tungsten functionally gradient material changes gradiently in a quasi-continuous or stepped mode along with the formation height. Through the method, the high-voltage breaking capacity of an electrical contact part is improved, and the service life of the electrical contact part is prolonged.

The invention relates to a rapid bridge detection method, which belongs to the technical field of civil engineering application. Firstly, a loading test vehicle with known axle load and wheelbase is adopted for loading to measure response of a test point; then, a method of adopting a specific function (piecewise polynomial and sine wave stacking) to fit the dynamic response of the test point is adopted to extract influence line information of the bridge; a tire-pavement stress distribution emprical formula is introduced to build a tire-pavement contact force trapezoid distribution model; in combination of the actual influence line information and the vehicle tire-pavement contact force distribution model, a linear superposition method is adopted to reconstruct bridge test point response information under different vehicle load combination effects, and thus, rapid bridge detection based on the influence lines is realized. Based on few driving tests on a single vehicle, the actual influence line information can be acquired rapidly and accurately, the bridge response information under different static load combination working conditions is reconstructed, rapid bridge detection is achieved, and the defects that the existing bridge detection method is long in consumed time, high in economic cost and long in traffic block time can be solved.

The invention belongs to the fields of the state monitoring and the fault diagnosis of vehicles, ships, engineering machinery, locomotive cars, engines, and the like by applying noise signals, in particular to a mechanical fault judgment system and method based on noise test, particularly suitable for complicated mechanical machinery which can not be provided with various sensors. The system comprises a high-frequency microphone, a sound card, a PC (Personal Computer) and a telescopic bracket, wherein the high-frequency microphone is fixed on the telescopic bracket and connected with the sound card, the sampling frequency of the high-frequency microphone can meet the requirement of the Nyquist theorem, and the sound card is connected with the PC. On the basis of combing the extraction andfractal algorithm of an energy band, noise signals in machinery operation are acquired and calculated to test mechanical faults by using the method; the system is simple to set, the economic cost is decreased, and the operation safety and the fault diagnosis accuracy are improved.