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37results about How to "Fit the actual situation" patented technology

Quad-rotor unmanned aerial vehicle (UAV) fault tolerance control method based on adaptive fault estimation observer

The invention discloses a quad-rotor UAV fault tolerance control method based on an adaptive fault estimation observer, and belongs to the field of aviation aircraft control. The method comprises thata fault model of a quad-rotor attitude system is established according to a dynamic model of a quad-rotor UAV by considering a performer fault of a UAV system; a performer of the UAV includes four rotor motors in practicality, faults correspond to the four rotor motors, the fault model is processed, the faults are divided into two groups decoupled mutually, and a final attitude fault model is obtained; according to the provided fault model, the adaptive fault estimation observer is designed, corresponding adaptive laws are provided, the performance fault is estimated, and an H(infinite) method and an interval matrix method are used on external disturbance and parameter nondeterminacy respectively in the design process; and an attitude system error fault model is obtained on the basis of the fault model, a dynamic output feedback fault tolerance controller is designed on the basis of a fault estimated value, and fault tolerance control of the quad-rotor UAV is realized. Influence of the performer fault on performance of the quad-rotor UAV can overcome, and the safety and reliability of the UAV in the flight process are ensured fully.
Owner:CENT SOUTH UNIV

Method for determining steam system optimization scheduling feasible solution of iron and steel enterprises

The invention is applicable to the field of energy scheduling technologies in iron and steel enterprises, and provides a method for determining a steam system optimization scheduling feasible solution of iron and steel enterprises. The method takes initialization of a free variable of schedulable equipment on a topological structure of a steam medium network as the main line, takes all constraint conditions such as physical constraints of steam media and process constraints of multi-unit equipment into account comprehensively, gradually advances according to a steam production and consumption processes, and obtains the feasible solution which naturally meets all of the constraint conditions under the premise that the complex iterative search computation is not required through carrying out processing procedures such as random allocation, constraint inspection, relevance detection and adjustment correction on all variables in the steam system; and if low-quality steam cannot meet steam requirements for production, inlet steam flow rates of some temperature reducing and pressure reducing devices are initialized in priority during the variable allocation process of high-quality steam associated with the low-quality steam in a predictable manner, the possibility that the generated steam system optimization scheduling scheme is an infeasible solution is reduced, and the software and hardware resource consumption of repeated iterative computations is reduced.
Owner:WISDRI ENG & RES INC LTD

A road traffic detection system and method with environment and time factors being combined

The invention relates to a road traffic detection system and method based on manhole covers so as to solve the problem that the manhole covers on a lane are not made full use of. The system comprises the manhole covers and a display terminal. Each manhole cover is equipped with an infrared detector, a pressure detector, a wireless emitter and a controller, wherein the infrared detector, the pressure detector and the wireless emitter are connected to the controller; and the wireless emitter is connected with the display terminal through a wireless network. Traffic saturation degree of the lane is summarized by calculating time used by vehicles passing across the manhole cover every unit time. According to the road traffic detection system and method, the current resources are fully utilized to allow the detected information to be sent to the display terminal, and the road traffic detection system and method can be utilized to various traffic detection or traffic detection software, thereby allowing people to know and monitor the road traffic conditions of each road section conveniently; and the road traffic detection system can provide useful data for urban traffic management, and can also provide data for users, so that the users can select better driving routes based on the data, and traffic jam cases can be prevented.
Owner:HANGZHOU DONGC INTPROP AGENCY CO LTD

Mouse control method and application thereof

The invention provides a mouse control method and application thereof, and the method comprises the steps: building a selection table P of an initial DPI value of a mouse, recognizing the type of a real-time program D0, responding to the mouse in real time, on a host, selecting a DPI value matched with the type of the program from the selection table P, and setting the DPI value as the initial DPI value of the mouse. According to the method, the mouse DPI values can be primarily selected according to the program types, the selection efficiency is high, the calculation amount can be remarkably reduced, and the primarily selected mouse DPI values which are relatively adaptive can be provided for different types of programs. After primary selection, the mouse DPI value is adjusted for the first time and more than one time of subsequent adjustment to complete adjustment of the mouse DPI value, so that the mouse DPI value can be further matched with a corresponding program type, and compared with the method of selecting the DPI value by adopting an optimal iteration algorithm and the like in the prior art, the calculation amount can be remarkably reduced, the workload of a host is reduced, and crash of the host or occupation of a large number of computing resources is avoided, and the adjustment duration is short.
Owner:GUANGZHOU BODA ELECTRONICS EQUIP CO LTD

Ad Hoc network virtual backbone node identification method

The invention relates to an Ad Hoc network virtual backbone node identification method, which belongs to the technical field of communication and solves the problem that the Ad Hoc network backbone nodes cannot be effectively identified in the prior art. The Ad Hoc network virtual backbone node identification method comprises the following steps: distinguishing and locating the nodes in the Ad Hocnetwork through a radio locating method, so as to obtain the number of the nodes, the location information of the nodes, and the size of the node deployment area; obtaining an important communicationdistance according to the number of the nodes and the size of the node deployment area; performing network physical topology inference according to the location information of the nodes and the important communication distance; and performing identification on the virtual backbone nodes using a unified connected dominating set according to the result of the network physical topology inference. The Ad Hoc network virtual backbone node identification method realizes automatic identification of the virtual backbone nodes in the Ad Hoc network. The result obtained by the Ad Hoc network virtual backbone node identification method is beneficial to the protection of the backbone nodes in the network, and improves the overall performance of the Ad Hoc network by improving the operational capability and information processing capability of the backbone nodes.
Owner:NAT UNIV OF DEFENSE TECH

Straw nitrogen adsorption determination method and determination device

The invention belongs to the technical field of measurement, and discloses a straw nitrogen adsorption measurement method and device. The straw nitrogen adsorption measurement method comprises the steps of simulating field flowing water to scour straws through a dynamic adsorption device, and carrying out the dynamic measurement of the adsorption capacity of the straws for ammonium nitrogen. According to the invention, the nitrogen adsorption performance of the straws is used as a starting material; a method of combining static adsorption and dynamic adsorption is adopted; microcosmic surfacemorphology and surface functional group changes of the straws before and after nitrogen adsorption are analyzed, influence factors of the two kinds of straws on ammonium nitrogen adsorption and adsorption thermodynamics and adsorption kinetics research of the straws on nitrogen are discussed, an adsorption thermodynamics model and an appropriate kinetic model are established, and an adsorption mechanism of the adsorption thermodynamics model and the appropriate kinetic model is speculated. The adsorption characteristics of the straws to the ammonium nitrogen are determined, the fertilizer retention capacities of the two straws to the ammonium nitrogen fertilizer in the early stage of water and fertilizer combination are evaluated, and the mechanism of adsorbing the ammonium nitrogen by thetwo straws is preliminarily revealed.
Owner:HUAZHONG AGRI UNIV

Electric vehicle charging scheduling method of ANP bilateral benefit fuzzy evaluation model based on time quantization

PendingCN112926788ASolve the impact of charging schedulingFit the actual situationForecastingResourcesSimulationRoad networks
The invention discloses an electric vehicle charging scheduling method of an ANP bilateral benefit fuzzy evaluation model based on time quantification. The method comprises the following steps: counting road real-time working condition information, user vehicle residual electric quantity and charging station operation information of a region; counting the real-time queuing condition of each charging station, and determining the predicted waiting time after the vehicle arrives; calculating traffic flow, node loss and road section loss of surrounding roads; detecting whether a user has a charging demand; and executing different charging schemes in combination with the operation conditions of the surrounding charging stations at the moment. According to the method, real-time road network information, charging station state information and electricity price information are comprehensively considered, on the basis of constructing a charging scheme evaluation system based on bilateral benefit balance, an ANP bilateral benefit fuzzy evaluation model based on time quantization is further constructed, the subjectivity problem existing when a traditional ANP model is used for solving the problem is solved, and the optimal selection of the charging path of the electric vehicle under different working conditions can be realized.
Owner:NANJING INST OF TECH

Preparation and application method of biological purifying agent for removing composite pollutants in sediments

The invention discloses a preparation and application method of a biological purifying agent for removing composite pollutants in sediments, relates to a preparation and application method of a biological purifying agent, and particularly relates to a method for preparing an immobilized material of the composite pollutants, namely a purifying agent with higher adsorption performance, by taking potassium alginate, plant ash and calcium nitrate as raw materials and immobilizing fungus penicillium chrysogenum. Meanwhile, the invention further provides a method for simultaneously purifying the composite pollution sediment containing organic matter BaP and inorganic arsenic As (v). According to the method, the BaP and As (V) combined pollution sediments are subjected to comprehensive treatment at the same time, and the prepared purifying agent has advantages of no secondary pollution, large specific surface area, multiple functional groups, chemical adsorption and physical adsorption with BaP and As (V), and good arsenic fixation effect. The method is simple to operate and easy to industrialize, can provide a feasible way for large-scale production of a purifying agent, and is a promising treatment technology for waste water/sediment containing BaP and As (V).
Owner:SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY

Methods and devices for determining payment crowd division, methods and devices for displaying payment crowd division modes, electronic equipment and storage equipment

PendingCN108648013AAvoid marketing mistakesReasonable actual situationMarketingPaymentCandidate division
The invention discloses a method and device for determining the payment crowd division for business object providers, relates to a method and device for determining the payment customer division for merchants at the same time, provides a method and device for displaying payment crowd division modes and also provides a method and device for displaying the payment customer division for the merchantsas well as electronic equipment and storage equipment. The method for determining the payment crowd division for the service object providers comprises the steps of: determining the service object providers and payment data of the service object providers; determining candidate division modes aiming at payment crowds according to the payment data, wherein in each candidate division mode, the payment crowds are divided into multiple groups of crowds; and determining the candidate division modes for any two adjacent groups of crowds whose payment data meet the payment data constraint conditionsas the final division modes aiming at the payment crowds, so that the actual situations of the service object providers per se can be more fitted and the most reasonable crowd division is achieved.
Owner:KOU KOU XIANG CHUAN BEIJING NETWORK TECH CO LTD

A Method for Identifying Virtual Backbone Nodes in Ad Hoc Networks

The invention relates to an Ad Hoc network virtual backbone node identification method, which belongs to the technical field of communication and solves the problem that the Ad Hoc network backbone nodes cannot be effectively identified in the prior art. The Ad Hoc network virtual backbone node identification method comprises the following steps: distinguishing and locating the nodes in the Ad Hocnetwork through a radio locating method, so as to obtain the number of the nodes, the location information of the nodes, and the size of the node deployment area; obtaining an important communicationdistance according to the number of the nodes and the size of the node deployment area; performing network physical topology inference according to the location information of the nodes and the important communication distance; and performing identification on the virtual backbone nodes using a unified connected dominating set according to the result of the network physical topology inference. The Ad Hoc network virtual backbone node identification method realizes automatic identification of the virtual backbone nodes in the Ad Hoc network. The result obtained by the Ad Hoc network virtual backbone node identification method is beneficial to the protection of the backbone nodes in the network, and improves the overall performance of the Ad Hoc network by improving the operational capability and information processing capability of the backbone nodes.
Owner:NAT UNIV OF DEFENSE TECH

A Method for Detection of Error Characteristics of UHV Capacitive Voltage Transformer

ActiveCN104155627BAvoid interferenceMeet the needs of on-site handover inspectionElectrical measurementsHigh resistanceTransformer
The invention provides an error characteristic detection method of an extra high voltage capacitive voltage transformer. The method comprises the steps that offline transformer on-site handover detection is carried out on an electromagnetic voltage transformer, and the electromagnetic voltage transformer is corrected according to a detection result; the corrected electromagnetic voltage transformer is used as a standard voltage transformer, and an error online detection device is used to carry out online error detection on the capacitive voltage transformer; the capacitive voltage transformer is respectively connected with a three-phase bus transformer outgoing wire and a high resistance outgoing wire; and the electromagnetic voltage transformer is connected with a bus between the transformer and the high resistance. Compared with the prior art, the error characteristic detection method of the extra high voltage capacitive voltage transformer, which is provided by the invention, has the advantages that online error detection can be carried out on the extra high voltage capacitive voltage transformer, which fits the actual situation of the capacitive voltage transformer; and error measurement is more accurate than offline error detection.
Owner:STATE GRID CORP OF CHINA +2
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