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26299results about How to "Improve operational efficiency" patented technology

Parking system path planning method based on dynamic time windows

The invention discloses a parking system path planning method based on dynamic time windows, and belongs to the technical field of path planning. The method is characterized by comprising the following steps: S1, building a work environment model of AGVs in an intelligent garage in a topological method; S2, setting priority for each AGV and each car parking/picking task according to different evaluation criteria; S3, using a Dijkstra algorithm to plan a shortest possible path for an AGV accepting a task; S4, arranging feasible path time windows; S5, designing conflict resolution strategies according to different types of conflicts; and S6, planning a conflict-free optimal path for the AGV using a parking system path planning algorithm based on dynamic time windows. A time-sharing use strategy is used, and the Dijkstra algorithm and a time window method are combined effectively, so that the problem that the existing multi-AGV path planning is of poor flexibility and is prone to deadlock or collision conflict is solved effectively, and a shortest conflict-free optimal path can be planned for an AGV accepting a task. In addition, the overall operation efficiency of an intelligent three-dimensional parking system can be improved effectively, and the car parking/picking waiting time can be reduced for social members.
Owner:JIANGSU MARITIME INST

Device and method for identifying and evaluating emergency hot topic

The invention relates to a device and a method for identifying and evaluating an emergency hot topic. The device is provided with four component parts including a text acquisition unit, a text expression unit, a topic clustering unit and a topic evaluation unit. The device and the method are characterized in that only a title, introduction, relevant features and other information of a text of a news report are extracted and regarded as an effective sample set identified by the hot topic. Compared with the existing full text extraction, the experiment result shows that the result of the existing full text extraction is similar to the result of the partial text extraction, but the operation of the device and the method is greatly simplified. Compared with a classical model, an improved feature weight calculation model is good in execution efficiency and strong in adaptability of text representation capability. The model is used for evaluating the hot value of clustered topics, and the calculated hot topic accords with the expected effect and is adaptive to the features of the emergency news report. In a word, in the process of processing the text of the emergency news report, the device and the method have good performance in aspects of calculation complexity, result accuracy and timeliness.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Intelligent substation based on sensor, communication network and expert system

The invention discloses an intelligent substation based on sensors, a communication network and an expert system. The intelligent substation comprises a substation automation system, a primary equipment condition monitoring system and an intelligent auxiliary control system. The intelligent substation is characterized in that the real-time data of equipment operation are acquired by additionally installing various sensors, the IEC61850 standard is utilized to realize information modeling of the sensor data, a communication network is utilized to build a physical channel for information transmission, and advanced application of the substation automation system and intelligent monitoring and linkage of the primary equipment condition monitoring and auxiliary systems are realized by a background expert system, thus realizing intelligent operation and patrol functions of the substation; the sensors include an all-fiber electronic current transformer, a capacitive voltage divider type electronic voltage transformer, a primary equipment condition monitoring sensor and an internet sensor with an auxiliary system things; and the advanced application of the substation automation system includes sequential control, equipment condition visualization, intelligent alarm, distributed condition estimation, substitution function and the like. Intelligent operation and patrol functions of the substation can be realized.
Owner:CEEC JIANGSU ELECTRIC POWER DESIGN INST +2

Human-computer interaction device and method adopting eye tracking in video monitoring

The invention belongs to the technical field of video monitoring and in particular relates to a human-computer interaction device and a human-computer interaction method adopting human-eye tracking in the video monitoring. The device comprises a non-invasive facial eye image video acquisition unit, a monitoring screen, an eye tracking image processing module and a human-computer interaction interface control module, wherein the monitoring screen is provided with infrared reference light sources around; and the eye tracking image processing module separates out binocular sub-images of a left eye and a right eye from a captured facial image, identifies the two sub-images respectively and estimates the position of a human eye staring position corresponding to the monitoring screen. The invention also provides an efficient human-computer interaction way according to eye tracking characteristics. The unified human-computer interaction way disclosed by the invention can be used for selecting a function menu by using eyes, switching monitoring video contents, regulating the focus shooting vision angle of a remote monitoring camera and the like to improve the efficiency of operating videomonitoring equipment and a video monitoring system.
Owner:FUDAN UNIV

Microgrid real-time energy optimizing and scheduling method in parallel running mode

The invention discloses a microgrid real-time energy optimizing and scheduling method in a parallel running mode. The method comprises the following steps of: firstly, dividing 24 hours in a day into a peak period of time, a general period of time and a trough period of time according to the load condition of a large power grid; and then, monitoring the working state of an accumulator in a microgrid in real time in the real-time process of the microgrid and adopting different energy optimizing strategies according to different periods of time and different working states of the accumulator soas to confirm the active power output of various schedulable micro power supplies, the charging and discharging power of the accumulator and scheduling instructions of the active power interactive with the power grid and the passive power of a passive adjustable power supply in the microgrid. The microgrid suitable for the invention comprises a reproducible energy generator, the schedulable micropower supplies and the accumulator. The invention not only can improve the economy and the reliability of the microgrid, but also can help the great power grid to cut peaks and fill troughs and is favorable to prolonging the service life of the accumulator.
Owner:ZHEJIANG UNIV

Virtual coupling small-group train control system and method based on train-train communication

The invention discloses a virtual coupling small-group train control system and method based on train-train communication, and is a scheme which guarantees running safety and improves train running efficiency. In the scheme, in a small-group range, a main train continuously detects environment awareness and state data of the main train, environment awareness and state data of a front train are acquired by point-to-point direct communication, a control strategy is formed by comparison calculation according to a calculation result, and a rear train is adjusted to follow the front train within adynamic safe distance. By the strategy, the main train is controlled to follow the front train adaptively, and the trains in a small group can be assisted to cooperatively make correct active train control decision and operation. By the scheme, the running performance of the system can be greatly improved, requirements of flexible operation of urban rail transit can be met well, development spaceand potential are huge, and the virtual coupling small-group train control system and method based on train-train communication are future development tendency and the development direction of an urban rail transit traffic signal system.
Owner:SIGNAL & COMM RES INST OF CHINA ACAD OF RAILWAY SCI +3

Warehouse management system with multi-guide-vehicle dispatching and distribution function

The invention discloses a warehouse management system with a multi-guide-vehicle dispatching and distribution function. The warehouse management system comprises a central management system and guide vehicles. The central management system reads material lists to obtain the inventory and position information of materials, selects appropriate guide vehicle types and number according to task quantity and the material positions, distributes the traveling routes for the guide vehicles, and selects the guide vehicles and distributes material input and output tasks according to the shortest time principle. The guide vehicles travel in a warehouse along the routes distributed by the central management system and have functions of self-positioning and barrier avoiding. The guide vehicles complete material information scanning, map information displaying and task displaying and receiving through vehicular interaction equipment and transmit guide vehicle state information to the central management system. The warehouse management system has the advantages that the guide vehicles are dispatched according to the comprehensive material information and the state information of the guide vehicles, the guide vehicles travel along the distributed routes to target positions to complete material input and output, a traditional warehouse management manner is optimized, and warehouse management efficiency is increased.
Owner:SHANGHAI JIAO TONG UNIV

Alternating current and direct current hybrid micro power grid system and control method thereof

The invention relates to a micro power grid system and a control method thereof, in particular to an alternating current and direct current hybrid micro power grid system and a control method thereof. The micro power grid system comprises an alternating current micro power grid system and a direct current micro power grid system, wherein an alternating current interface of the alternating current micro power grid system is connected to a micro power grid alternating current bus; and a direct current interface of the direct current micro power grid system is connected to a micro power grid direct current bus. The scheme provided by the invention is applied to the micro power grid system which is formed by connecting various distributed new energy sources, an alternating current load, a direct current load, an energy storage system and the like through power electronic devices and a micro power grid network and operates independently, the system meets the different power requirements of users, alternating current power supply and direct current power supply are realized, and reliable power is supplied to the loads. The system contributes to the design, control, operation and maintenance of an alternating current and direct current hybrid micro grid, and the power supply reliability, economy and efficiency of the micro power grid are effectively improved by the control method of the system.
Owner:CHINA ELECTRIC POWER RES INST +1

Province-level power distribution network operation monitoring system based on network-wide data

ActiveCN104124756AEasy scheduling and managementImprove the level of high-quality power supplyCircuit arrangementsTransmissionThree levelData integration
The invention discloses a province-level power distribution network operation monitoring system based on network-wide data. The monitoring system comprises a three-layer structure: an information integration layer, a platform layer and an application layer. The information integration layer mainly collects basic and operation data of a distribution network and provides online and offline power distribution network operation data to the platform layer through an information interaction bus. The base platform layer mainly gathers and summarizes various data of the distribution network and provides corresponding services to the application layer. The application layer mainly, under the support of the platform layer and based on network-wide equipment and the operation data, carries out operation monitoring, index monitoring and data analysis on the power distribution networks of the whole province. The operation monitoring system has the advantages of realizing province/ city/ county three-level power distribution network production and marketing and the like data integration, establishing an information integration platform, monitoring the operation states of the power distribution networks of the whole province in a concentrated manner, monitoring various data and index in the power distribution networks, and facilitating operation management of the power distribution networks of the whole province.
Owner:STATE GRID CORP OF CHINA +1

Resource sharing method, device and system

InactiveCN102195957ASave on storage overheadSave administrative overheadTransmissionAuthorizationDistributed computing
The embodiment of the invention provides a resource sharing method, a resource sharing device and a resource sharing system. The method comprises the following steps of: receiving a resource sharing request from a sharing party of a first domain, wherein the resource sharing request comprises resource identifiers corresponding to resources requested to be shared and information about a shared party; processing the resource identifiers and the information about the shared party, and generating authorization verification information; transmitting a resource sharing message to the shared party of a second domain, wherein the resource sharing message comprises the authorization verification information; receiving a resource access request from a requesting party of the second domain, wherein the resource access request comprises the resource identifiers, the information about the requesting party and the authorization verification information; and judging whether the requesting party is allowed to access the resources corresponding to the resource identifiers or not according to the resource identifiers, the information about the requesting party and the authorization verification information in the resource access request. By the method, the storage and management overhead of right checking can be saved, and the running efficiency can be improved.
Owner:HUAWEI TECH CO LTD

Direct3D 11-based 3D graphics rendering engine

The invention discloses a Direct3D 11-based 3D graphics rendering engine, which comprises a master control module and a plurality of functional sub modules, wherein the functional sub modules comprise a matrix module, a view point module, a head-up display module, a multi-character set word module, a 3D primitive base class module, a poster board module, a mesh model module, a smoke and rain and snow particle system module, a halo special effect calculation module, and a soft shadow calculation module. According to the default rendering process for each frame, the soft shadow module is firstly called, and with the illumination direction as the view point, the depth information of each primitive in the rendering scene is calculated; then, with the sight line of eyes of an observer as the angle, each primitive in the scene is rendered to the surface, an original scene view is obtained, highlight information is obtained at the same time, and the actual lighting effects of each pixel point is obtained according to the depth information and the illumination calculation result; and finally, in combination with the first sum depth information and the highlight information, highlight aura special effect post-processing on the illumination is carried out on the original scene view, and the final single-frame rendering graph is obtained.
Owner:钱进 +3
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