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620results about How to "Clear logic" patented technology

Method for establishing D2D multicast communication and allocating wireless source thereof in IMT-A system

A method for establishing D2D multicast communication and allocating wireless source thereof in the IMT-A system is used for the data communicating service based on local sharing in the system. The multimedia multicast technology is introduced into the D2D technology for solving the high-speed data sharing request of one mobile terminal on multiple mobile terminals to realize the eNB-assisted D2MD communication under the IMT-A honeycomb network. The method comprises a control signaling interactive progress of the eNB and the D2MD group in the communication establishing process and a wireless source allocating progress of the eNB for the D2MD group. The method for establishing the D2D multicast communication and allocating wireless source thereof in the IMT-A system has the advantages of reducing the eNB load under the IMT-A, and greatly improving the spectral efficiency and throughput capacity of a cell as the D2MD can reuse the spectral source under the premise of not affecting the communication of honeycomb users. The wireless source allocating progress of the eNB for the D2MD comprises three steps of mode selecting, spectrum allocating and power controlling. The method aims at the applying requests of the D2MD users, ensures the QOS (quality of service) of all users as much as possible, is simple in operation, clear in algorithmic logic and low in complexity, and has better promoting and applying prospects.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Scalable text generation method

The invention provides a scalable text generation method. By means of the method, text files can be rendered faster and CPU resources of a server are used more efficiently. The method includes the steps that a whole template file is decomposed into multiple subtemplate files; a rendering task list is generated and comprises multiple rendering tasks, the rendering tasks are used for being associated with the subtemplate files corresponding to the rendering tasks, and logic of preparation data before rendering is realized; multi-thread rendering is carried out on the rendering tasks; rendering results of the rendering tasks are spliced into texts. By means of the technical scheme, development and maintenance cost of the template file is reduced, data preparation is more efficient, and the CPU resources of the server are used more reasonably.
Owner:BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1

Test script generation method, test script generation device, testing method, testing device and testing system

The invention discloses a test script generation method, a test script generation device, a testing method, a testing device and a testing system. The test script generation method comprises the following steps of: selecting behaviour tree nodes from a preset node library according to instructions of testers, and constructing a behaviour tree corresponding to a test case; transforming the behaviour tree into an XML file; analyzing the XML file, and generating a test script. According to the invention, test processes may be simplified, requirements on technical capacity of the testers may be lowered, and accumulation and reuse of test codes may be facilitated.
Owner:NETEASE (HANGZHOU) NETWORK CO LTD

Three axis directional controlling method for stabilizing posture in deep space based on behavior mode

InactiveCN1876501ASolving Vector Solving Singular ProblemsClear logicSpacecraft guiding apparatusFlight computerKinematics
The invention discloses a deep-space three-axle stable attitude directional control method, based on operation mode, belonging to an attitude control method of space aircraft, wherein said method comprises: the space aircraft with automatic navigation function, via flying computer, receives the reference directional mission and auxiliary directional mission; the flying computer, according to the aircraft track supported by navigation system and the track of target heavenly body obtained by astronomical ephemeris interpolation, finds the attitude operation process meet the demand of said mission, as the reference attitude track; and uses attitude track control rule, via the attitude interface unit, to drive the attitude executer of aircraft, to realize needed attitude. The invention can improve the automatic degree.
Owner:HARBIN INST OF TECH

Method for generating electronic map

The invention provides a method for generating an electronic map. The method includes a data collecting procedure, a data storage procedure and an electronic map displaying procedure, wherein the data collecting procedure includes a step of collecting vector data and additional data corresponding to the vector data; the data storage procedure includes the steps of storing the collected vector data and the collected additional data in a server database, enabling the vector data corresponding to different types of main body elements to be stored in a plurality of layers, and enabling the vector data of each type of main body elements to be stored in one layer; the electronic map displaying procedure includes the steps that an electronic map displaying end obtains the vector data and the additional data from a server, draws vector diagrams corresponding to each layer of vector data layer by layer according to the vector data in each layer, and adds the additional data related to main body element identification data (ID) in the layer of vector data, and consequently the electronic map is generated in a displaying device.
Owner:北京点道互联科技有限公司

Electric automobile and power storage battery safety management control method

The invention discloses an electric automobile and a power storage battery safety management control method. The power storage battery safety management control method includes the steps that all faults of a power storage battery are divided into multiple different fault levels according to the degrees of severity; a battery management system judges the fault level of the power storage battery; and a vehicle control unit receives the fault level, makes a response to the fault level and sends a control command to an execution component of a vehicle. According to the control method, all the faults are further divided into common faults and non-common faults, the common faults are sent to a CAN network through a networking protocol, and only fault codes of the non-common faults are sent. Thefaults of the power storage battery are managed according to the levels, the levels are provided with corresponding treatment measures, an interface is simple, logic is clear, occupied communication resources are small, the vehicle control unit does not need to judge the specific fault, and the fault of the power storage battery can be quickly judged and treated only through the simple fault level.
Owner:SAIC-GM-WULING AUTOMOBILE CO LTD

Apparatus and method of synthesis fault detection for main-spare taking turns

The invention discloses a comprehensive fault detecting device and a method for shifting a main computer and a standby computer, and relates to the application communication field. The invention aims at providing comprehensive detection in main-standby shifting condition. The main computer and the partner computer of a main-standby shifting comprehensive fault detecting device are symmetric in structures. Each of the main computer and the partner computer respectively includes a CPU, a programmable control circuit module which is connected with the CPU through a CPU address / data / control bus, a communication interface module, a hardware reset register, and a software reset register; the programmable control circuit module contains a summation meter inside. A main-standby shifting comprehensive fault detecting method includes the steps of initializing a programmable control circuit and the application software; conducting state detection and data synchronization on the main computer and the partner computer periodically, and determining whether a mark in the hardware reset register and the software reset register is read according to the detection result. The invention is applicable for an important working unit which needs the communication and control bus distribution system with main-standby shifting function.
Owner:ZTE CORP

Nand Flash bad block management method

The present invention discloses a Nand Flash bad block management method. The method comprises the following steps: S1. dividing a Nand Flash storage device into a bad block information storage area, a data area and a backup area, and establishing a bad block mapping list in the bad block information storage area for recording an address mapping relation between a bad block and an replacement block thereof, wherein the replacement block of the bad block is stored in the backup area; S2. detecting whether a factory block flag bit of the Nand Flash storage device is set, if so, determining a factory block as the bad block, and storing address information of the bad block to the bad block mapping list, and if not, entering the next step; and step 3. when the bad block occurs during a read / write operation in the data area, setting the flag bit of the bad block to be set, assigning the replacement block in the backup area for the bad block, and storing both addresses of the bad block and the replacement block into a bad block information table, wherein mapping of the bad block address in the data area is the replacement block address.
Owner:SHANDONG LUNENG SOFTWARE TECH

Method for establishing bidirectional reflectance distribution function (BRDF) prototype library based on multi-angular measurement

The invention relates to a method for establishing a bidirectional reflectance distribution function (BRDF) prototype library based on multi-angular measurement. Through self-defining bidirectional anisotropic flat index (AFX) and iterative self-organizing ISODATA clustering algorithm, a theory and a method for establishing the BRDF prototype library based on BRDF feature mode are provided and are realized by using 69 groups of ground surface multi-angular measurement data and the history data (MCD43A) of global EOS ground surface verification core point. According to the theory and the method, the conventional method for establishing a BRDF database based on the ecological form of ground surface is abandoned, the BRDF prototype library is different from the global pixel-to-pixel BRDF database of MODIS (Moderate-resolution Imaging Spectroradiometer) in the service operation at present; and is small in volume, simple and convenient to construct and easy to operate, and is applicable for other airborne and spaceborne multi-angular measurement data of ground surface. In the technical field of spatial information, the method particularly has theoretical and application values for extracting BRDF prior knowledge to invert ground surface parameters in the aspect of quantitative remote sensing.
Owner:BEIJING NORMAL UNIVERSITY

Universal structured process dispatch method based on work flowfor complicated service system

Complex business systems based on work flow in the common component of the process scheduling method, the business systems in use database data extraction process is based on the following process, a component of the software, work flow will be introduced to the database data extraction process scheduling engine : workflow is a series of interrelated automatically business activities or tasks; on the basis of components of the system through the implementation process configuration parameters: For a business processes, first of all, is necessary for the definition of packet components: Parameters designated-operation, input data and output data packets between designated the implementation of the order, thereby constituting a component sub-tasks and then select a different component sub-tasks and sub-tasks between designated the implementation of the order, thereby constituting a complete task component; implementation of this task will be to complete the deal with all the necessary business function.
Owner:LINKAGE SYST INTEGRATION

Step counting method and pedometer

The invention discloses a step counting method and a pedometer.Acceleration signals in the motion process of the human body are collected based on a three-axis acceleration sensor.The method is characterized in that the acceleration signals in the motion process of the human body are analyzed and detected, an absolute value of the vector sum of original data of the three axes serves as basic data, sliding average processing is carried out on the basic data, a sliding average value serves as calculation data, and the fluctuation and time parameters of the data value serve as an analysis object.The pedometer can accurately count steps of different kinds of wearers.The pedometer has the advantages of being clear in logic, accurate in step counting and small in calculation amount, and is particularly suitable for the environment with very limited resources.
Owner:SHENZHEN WEIKELIAN COMM

Visual configuration method for index calculation

ActiveCN104268428AEfficient parallelismEfficient memory computingSpecial data processing applicationsTopological graphWeight coefficient
The invention discloses a visual configuration method for index calculation. The visual configuration method for the index calculation includes following steps: S01, building models of business objects; S02, building a model of basic data: selecting attributes of the business objects in visualization mode from the models of the business objects, built in the step S01, in an FLEX environment, and connecting the business objects through operational characters so as to form a calculation link of basic data items; S03, building a model of the index calculation: resolving logic of the index calculation into the basic data items, weighting coefficients and the operational characters, and forming a topological graph model of the logic of the index calculation in the FLEX environment; S04, calculating an index: using numerical value of the basic data items and an algorithm described by the operational characters to calculate layer by layer so as to push deep into a root node, and finally obtaining an index value on the root node. The visual configuration method for the index calculation organically integrates technologies of concurrent calculation, memory calculation, visual index calculation model configuration together, and develops the advantages of being parallel in clustering of the concurrent calculation, being high in efficiency of the memory calculation and the like.
Owner:STATE GRID CORP OF CHINA +2

Heuristic rapid satellite data receiving resource joint distribution method

The present invention discloses a heuristic rapid satellite data receiving resource joint distribution method. Aiming at the problem of the multi-ground receiving resource for the multi-observation satellite joint optimization distribution, in consideration of continuously coming observation task and the observation requirement on the a satellite with high timeliness requirement, a heuristic rapid satellite data receiving resource joint distribution method is designed. The method comprises: distributing non-conflicting resource, distributing conflict receiving resource for the real transmission and the task at an assigned ground station in order according to the priority from high to low, and finally distributing the conflict receiving resource based on the minimum task filling rate satellite priority principle. The method is simple in determination logic, high in resource use ratio and low in time complexity, especially has the capacity of replying emergency and complex business variation.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP

Method for monitoring sleep respiration based on snore signals

The invention relates to a method for monitoring sleep respiration based on snore signals. The method is clear in logic and used for judging whether a sleeper has obstructive respiration or not based on the snore signals. The method comprises the following steps: firstly, acquiring continuous respiration signals of a to-be-tested sleeper; secondly, dividing the continuous respiration signals to obtain respiration signal segments, and judging whether each respiration signal segment comprises the snore signal or not respectively; thirdly, judging whether primary obstructive respiration exists or not for all the snore signals respectively; finally, judging whether obstructive respiration exists or not according to an obstructive respiration model for the snore signals with the primary obstructive respiration, and obtaining a sleep respiration situation of the to-be-tested sleeper through judgment. Therefore, the method realizes real-time monitoring for the sleeper, provides scientific and accurate sleep respiration monitoring for the sleeper, thereby paying close attention to sleep health of the sleeper in real time.
Owner:PLA UNIV OF SCI & TECH +2

Method for managing content by IPTV system

InactiveCN1976449AFast, effective, convenient and practical content managementConvenient and practical content managementPulse modulation television signal transmissionAnalogue secracy/subscription systemsContent managementOn demand
A method for carrying out management on content by IPTV system includes logging on content management platform by content provider, uploading media stream file onto film source base by content provider, assigning operator by said provider, adding content to be checked record of uploaded media stream in operator gate and checking media stream file by operator then preparing program if check is passed or otherwise giving refuse reason out, issuing program on CDN by operator and forming program being available to be on-demand by IPTV user.
Owner:ZTE CORP

Multi-way waveform acquiring and displaying and data analyzing and processing system based on universal serial

The invention relates to the field of testing technology of upper computers, and in particular relates to a multi-way waveform acquiring and displaying and data analyzing and processing system based on a universal serial. The system comprises a waveform acquiring and displaying part and a data analyzing and processing part; the system has a multi-threading framework; the waveform acquiring and displaying part is used for obtaining and processing multi-path waveform data uploaded by a lower computer from an RS232 universal serial interface of a PC (Personal Computer), and then displaying the multi-path waveform data in forms of text and oscillogram; and meanwhile, the data analyzing and processing part is used for acquiring, processing and displaying the waveform data, as well as displaying the continuous real-time variation of the waveform. The multi-way waveform acquiring and displaying and data analyzing and processing system has the advantages that a multi-way (4 ways at the maximum) waveform data real-time transmission and shunting displaying system based on the RS232 serial interface is achieved by using a simple and novel method on the PC in which a windows operating system runs; and moreover, the system also merges a data analyzing function, and therefore the system can be used for processing the waveform in each way through the spectrum analysis and a plurality of filtering algorithm methods.
Owner:中国东方电气集团有限公司

Prediction system of circulating fluidized bed household garbage burning boiler furnace outlet flue gas oxygen content and method thereof

The invention discloses a real-time prediction system of a circulating fluidized bed household garbage burning boiler furnace outlet flue gas oxygen content and a method thereof. An integration modeling method of a support vector machine algorithm and a multi-population genetic particle swarm optimization algorithm is used. A rapid, economic and adaptive updating system and a method are constructed so as to predict a boiler furnace outlet flue gas oxygen content in real time, and tedious and complex mechanism modeling work is avoided. A nonlinear dynamical characteristic of a SVM algorithm, a generalization capability and a real-time prediction capability are used to represent a dynamical change characteristic of a flue gas oxygen content. A particle swarm optimization algorithm is used to optimize a SVM algorithm punishment parameter C and a nuclear parameter g so as to increase a generalization capability of a model. A genetic operator and a multi-population migration mechanism are introduced so as to accelerate a convergence speed of a particle swarm algorithm, increase a diversity of a particle swarm optimization algorithm solution, reduce a possibility for particle swarm algorithm optimization calculation to get into local optimum and increase a global search capability and a local search capability of the algorithm.
Owner:ZHEJIANG UNIV

ID distribution system and method of CAN bus network

The invention provides an ID distribution system and method of a CAN bus network. The system comprises a main controller and first to Nth secondary controllers, wherein the main controller is used for distributing IDs for the first to Nth secondary controllers, ID distribution commands are sent to the first secondary controller through ID distribution lines, ID information is sent to the corresponding secondary controllers through a CAN bus, and abnormal information is received through an IO diagnosis line. Each of the first to Nth secondary controllers is used for activating a corresponding CAN bus receiving function after receiving the ID distribution commands sent by the main controller through each ID distribution line, for updating the ID of the secondary controller according to the received ID information, and for activating the CAN bus receiving function of the next secondary controller after ID updating of the secondary controller is completed. According to the system, on-line distribution of the IDs can be achieved through matching between the ID distribution lines and the CAN bus, logic is clear, meanwhile the normal information for auxiliary control is judged through the IO diagnosis line, safety and reliability are achieved, and the whole system is simple in structure, few in the number of hardware resources, and low in cost.
Owner:BEIQI FOTON MOTOR CO LTD

Direct-current side charging method of modular multi-level converter

The invention discloses a direct-current side charging method of a modular multi-level converter. The direct-current side charging method of the modular multi-level converter comprises the steps that an alternating-current side disconnector of the modular multi-level converter is opened, and a circuit breaker of the modular multi-level converter is turned off; a system which is formed by converter stations except a converter station needing direct-current charging in a system runs normally; a direct-current side disconnector of the modular multi-level converter is closed, and non-control rectification precharge is carried out on the converter station needing direct-current charging through a direct-current line; after non-control rectification precharge is accomplished, the modular multi-level converter is unlocked through a method that the number of input sub-modules decreases progressively so that the modular multi-level converter can be continuously charged from the direct-current side until the capacitance and the voltage of the sub-modules reach preset values respectively; direct-current side charging of the modular multi-level converter is accomplished, and the modular multi-level converter is merged into the system to carry out operation. According to the direct-current side charging method of the modular multi-level converter, charging of the modular multi-level converter can be achieved on the situation that extra input is not increased, the phenomenon that a surge voltage and a surge current occur when the modular multi-level converter is directly unlocked after non-control rectification precharge of the direct-current side is accomplished is effectively avoided, and safety and stability of operation of a flexible direct-current power transmission system are improved.
Owner:RONGXIN POWER ELECTRONICS +1

Rotary phased array radar sliding window resource scheduling technique based on sectors

The invention belongs to the phased array radar resource scheduling field and relates to a sliding window resource scheduling technique based on sectors. The technique is mainly applicable to managing and distributing the resources of two-dimensional rotary phased array radars. A radar system is used for carrying out resource distribution for multiple functions and multiple tasks by sectors, and in each sector, the residence time of tasks of each type is adaptively adjusted according to the capacity of the tasks. The sliding window resource scheduling technique refers to taking the task load conditions within one sector starting from the current scheduling interval into account during resource distribution to the current scheduling interval, and taking the task loads within one sector starting from next interval into account during the next scheduling interval, thereby forming sliding window type resource scheduling. The residence time distribution proportions of the tasks of various types are determined according to different working modes of the radars, and the detection distances of the radars, the search data rate, the fine tracking batch number, the confirmation batch number and the like can be adaptively adjusted according to the time obtained by the tasks, and therefore, multiple functions and multiple tasks are realized simultaneously, and the flexibility and the operational effectiveness of the two-dimensional rotary phased array radars are improved.
Owner:THE 724TH RES INST OF CHINA SHIPBUILDING IND

Flexible charging optimization method sufficiently using electric vehicle off-board charger

The invention relates to a flexible charging optimization method sufficiently using an electric vehicle off-board charger, which solves shortcomings in the prior art. The technical scheme is that an annular network form is established according to needs to connect alternating current-direct current conversion modules; control switches are arranged between the alternating current-direct current conversion modules; the alternating current-direct current conversion modules all correspond to charging interfaces and demand data readers; control ends of the control switches are connected with a charging main controller; and the demand data readers are also connected with the charging main controller. The charging main controller judges working states and working number of the current alternating current-direct current conversion modules according to working states of the charging interfaces; if data input by the demand data reader in the current working charging interface is larger than output power of the alternating current-direct current conversion module, the charging main controller executes the step 4; and if the data input by the demand data reader in the current working charging interface is less than or equal to the output power of the alternating current-direct current conversion module, the charging main controller executes the follow-up steps.
Owner:ZHEJIANG WANMA NEW ENERGY

Game strategy generation method of non-complete information

The invention relates to a strategy generation method under non-complete information gaming. The method comprises following specific steps: the opponent behavior modeling step that, before gaming is performed, according to a specific rule of the gaming, modeling for each behavior of an opponent is performed; the behavior collection and information prediction step that, in the gaming process, information of each action of the opponent is recorded, and the information is converted into probability distribution of opponent information through a model; the win rate calculation step which is performed according to a prediction and that, according to the probability distribution, a simulation is performed through a monte carlo method to obtain an own win rate; and the step that an expect benefit of each behavior is calculated according to the win rate finally, and the haviro having the highest expect benefit is selected to be taken as a final decision. A new thought is provided for the non-complete information gaming, the method has the advantages of clear logic, simple implementation and accurate calculations of the opponent information and the win rate, the decision-making capability in specific situation can be improved, a decision benefit is maximized, and then industrial production efficiency is improved.
Owner:ZHEJIANG UNIV

Fast search-based agile satellite task planning method

The invention discloses a fast search-based agile satellite task planning method. The method comprises the following steps of: firstly establishing a target observation queue according to different sorting rules; inserting to-be-observed objects in sequence and dynamically updating a sliding imaging window of each target in the observation queue according to a target insertion position; when all the tasks are inserted, determining a practical imaging window according to a target imaging time length and the sliding imaging windows to ensure that the imaging quality is optimum; and finally comparing planning schemes obtained according to the different task sorting rules and selecting a planning scheme with the optimum imaging quality. The method has the characteristics of being high in imaging quality, simple in time sequence control logic, low in time complexity and high in task arrangement efficiency, and is particularly suitable for the field of agile imaging satellite task planning.
Owner:SPACE STAR TECH CO LTD

BRDF normalizing correction method for airborne push-broom hyperspectral image of forest region

The invention provides a BRDF (bidirectional reflectance distribution function) normalizing correction method for the airborne push-broom hyperspectral image of a forest region having an accidented relief. The method comprises the following steps: calculating the plane-based sun-observation geometry of the pixels of the image by using the observation view field and flight attitude information of an airborne push-broom hyperspectral device and the sun position at a data acquisition moment, extracting the slope and aspect information of the corresponding pixels based on high-precision DEM (digital elevation model) data, rotating the plane-based sun-observation geometry of the pixels to true sun-observation geometry, extracting the pixels of every surface feature from classified image data, forming a multi-angle observation reflectivity data set, and constructing a BRDF model according to the true sun-observation geometry; and normalizing the multi-angle direction reflectivity in the image to the reflectivity at an assigned observation-sun angle by adopting a multiplicative normalization factor. The method can effectively correct the BRDF effect of the airborne push-broom hyperspectral image of the forest region having the accidented relief, and is of great significance to the quantitative study of subsequent images.
Owner:RES INST OF FOREST RESOURCE INFORMATION TECHN CHINESE ACADEMY OF FORESTRY

Method for dynamic position tracking of train

The invention provides a method for dynamic position tracking of a train. The method comprises the following steps: starting to track the train position according to the train departure signal; searching the tracked position in the departure route locking zone up to the interval zone; assigning the train operation direction according to the departure route direction; when a station track is subject to voidance in the train station, deleting the train position information concerning the station track; tracking the train position according to the train operation direction, wherein the tracked position is the existing occupied zone, and obtaining the train position information from the left zone and the right zone of existing occupied zone; tracking the train position according to a train receiving signal, searching the tracked position according to the receiving route locking zone until the corresponding receiving station track in the next train station is found and deleting the train operation direction; and restarting the original tracking method the train continues to proceed. The method of the invention has the advantages of simple tracking logic, easy processing and control, high tracking efficiency and accurate and reliable tracking.
Owner:HENAN SPLENDOR SCI & TECH

Method for guiding cleaning robot to return to charge base, storage medium and electronic equipment

The invention provides a method for guiding a cleaning robot to return to a charge base. The method comprises the following steps: entering a guiding area, and acquiring a guiding signal by a cleaningrobot, wherein the guiding signal comprises a first guiding signal and a second guiding signal; adjusting a return direction, and carrying out alignment return. The invention further relates to a storage medium and electronic equipment. Due to multi-signal fusion, return routes of a robot can be reasonably planed, directions and positions of the charge base relative to the robot can be rapidly and accurately positioned, the return efficiency and the alignment success rate of the robot returning to the charge base to charge power are increased, the time and the battery power taken by the cleaning robot in finding the charge base after cleaning is completed or low power is left can be reduced, and the return charge efficiency and the intelligence degree of the cleaning robot can be increased. The method is clear in logic and smart in idea, and popularization and application of an intelligent cleaning robot can be facilitated.
Owner:KINGCLEAN ELECTRIC +1

Middle-small unmanned aircraft parachute descent recovery control device and control method thereof

The invention discloses a middle and small unmanned aerial vehicle parachute landing device and a controlling method. The device comprises two discrete input 'choosing two out of three' circuits A and B, relay driving circuits A and B and relays A and B, all of which are connected by printed panel lines and respectively control the power supply of the engine and the explosive bolt; the method thereof determines three logic states of 'before open', safety 'pre-commanding' and 'open' and times 'effective time of safety pre-commanding' and 'parking time of engine'. The conversion of the logic states is determined by current test and control instructions, logic states and two timed values and thus controls the relays A and B. The unmanned aerial vehicle parachute landing device can prevent the parachute opening controlling signal from being disturbed so as to avoid accidental parachute opening; the method thereof carries out integrated control to the engine parking and the parachute opening, reduces the possibilities of the accidental parachute opening caused by the misoperation of an operator and the winding and cutting of a parachute rope by the propeller, thereby ensuring the safety and the reliability of the unmanned aerial vehicle parachute landing.
Owner:BEIHANG UNIV

Improved brute-force search method based train vehicle energy-saving operation method

The invention discloses an improved brute-force search method based train vehicle energy-saving operation method. The method includes steps of setting train operation line data and train parameters and establishing a train operation power consumption calculation model; taking train traction energy consumption and interval travel time as optimization targets, establishing a train operation energy-saving optimization model; processing an objective function and constraint conditions through a goal constraint method and converting a multi-target problem to a single-target problem; processing the constraint conditions, narrowing a solution search range and processing the converted single-target problem through a brute-force search method; selecting a train operation strategy with punctuality and the highest energy conversation rate according to the set train interval travel time and the interval distance, and obtaining a corresponding speed curve and energy consumption curve. According to the invention, regular energy conservation optimization precision of a train is improved effectively. Besides, the optimization speed is high and train energy consumption is reduced.
Owner:NANJING UNIV OF SCI & TECH

Man-machine conversation understanding method and system for specific field and relevant equipment

The invention relates to the field of artificial intelligence, in particular to a man-machine conversation understanding method and system for a specific field and relevant equipment and aims to improve accuracy of conversation understanding. The conversation understanding method of the man-machine conversation system comprises the steps as follows: receiving a word currently input by a user and mapping the word to a vector space; expressing a historical word vector, semantic annotation information and intent category information as vectors by using a semantic representation layer; acquiring asemantic label of the current word by using the semantic labeling layer; acquiring the intent category of the current word by using an intent recognition layer. Extra part-of-speech information is introduced during model training, the part-of-speech prediction layer is used for predicting the part-of-speech of the next input word, semantic information shared by semantic annotations, intent recognition and part-of-speech prediction is fully used and promoted mutually by joint processing of the three tasks; the system and the method have clear logic, high efficiency and high accuracy, and the technical problem that the existing man-machine conversation system cannot effectively perform real-time conversation understanding is properly solved.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Method for positioning shell part in horizontal machining center and machining method

The invention discloses a method for positioning a shell part in a horizontal machining center and a machining method. The clamping position of the shell part on a machine tool workbench after the workbench rotates is determined, the shell part is machined, the method comprises the steps that the shell part is fixed at any position of the machine tool workbench, a user macro program of a numericalcontrol system is compiled, the user macro program of the numerical control system is input into a numerical control system of a machine tool, and automatic offset of the origin of coordinates duringmultidirectional machining is realized. According to the method for positioning the shell part, the coordinates of the original point of a workpiece coordinate system are obtained through automatic conversion of the macro program, the debugging time can be shortened, theoretical calculation has no error, the debugging rejection rate can be reduced, the cost is saved, and automatic offset of the coordinate original point during multidirectional machining can be achieved without clamping a workpiece datum point to a rotation center of the workbench.
Owner:SHAANXI FAST GEAR CO
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