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578results about How to "Solve management problems" patented technology

Method for constructing real scene model collaborative design platform of railway engineering

The invention relates to a method for constructing a real scene model collaborative design platform of railway engineering. Railway and urban rail transit projects are distributed in a strip shape, engineering data are large, numerous professions are involved, and therefore, the efficient and stable collaborative design platform needs establishing. According to the method, the strip-shaped continuous three-dimensional real scene model is established along the whole range of the project, and fusion processing is performed on all professional three-dimensional building information models (BIM) and the three-dimensional real scene model. Under the management mode of a distributed database, management is performed on a global data base of the three-dimensional real scene model collaborative design platform and special databases of all professional BIM design platforms which only transmit upstream data and downstream data involved in collaborative design and generated BIM three-dimensional design results onto the three-dimensional real scene model collaborative design platform. By means of the method, the strip-shaped project information model along the whole range of the project is established, all professional interactive data are integrated into a continuous three-dimensional real scene, and collaborative design is achieved.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP

Power system energy efficiency public service cloud platform based on cloud computing

The invention relates to a power system energy efficiency public service cloud platform based on cloud computing. A three-layer framework is adopted in the energy efficiency public service cloud platform and comprises an energy efficiency service Iaas layer, an energy efficiency service Paas layer and an energy efficiency service application Saas layer. The energy efficiency service Iaas layer is an infrastructure level service layer and is used for providing virtual resources, mapped through the virtual technology, for a network, a server and database physical facilities in the cloud platform. The energy efficiency service Paas layer is a platform level service layer and used for providing the execution environment of cloud middleware resources, a distributed parallel platform and application service software for power consumers. The energy efficiency service application Saas layer is a software level service layer and used for providing software services of energy efficiency services based on Web access for users. According to the energy efficiency public service cloud platform, acquisition and monitoring of energy efficiency information and diagnosis and analysis of user energy efficiency parameters are achieved through the energy efficiency service application Saas layer. By means of the framework mode, management objects and function requirements can be quickly expanded and upgraded, and user energy management efficiency is improved.
Owner:XUJI GRP +3

Motorcade establishment and management method and system based on block chain and PKI authentication mechanism

The invention belongs to the technical field of safety communication between motorcades in Internet of Vehicles, and discloses a motorcade establishment and management method and system based on a block chain and a PKI authentication mechanism. The method is mainly divided into two parts of motorcade establishment and group key agreement and update; the motorcade establishment part comprises the following main processes of member registration, member identity authentication and group head aggregate signature; and the group key agreement and update part comprises the following main processes ofgroup key agreement and group key update for dynamic joining and exiting of a vehicle. According to the method and the system, the block chain is combined with the PKI authentication mechanism, a problem of identity authentication of the vehicle, a server and an RSU in the Internet of Vehicles is solved; the motorcade establishment is completed based on an elliptic curve, a bilinear pairing technology and an aggregate signature; and the group key agreement and update can be realized based on a DDH difficulty problem, the forward and backward safety is achieved, and the safety of member communication in the motorcade is ensured.
Owner:XIAN UNIV OF POSTS & TELECOMM

Multi-center watershed water environment distributed cluster management system and method

The invention discloses a multi-center watershed water environment distributed cluster management system and method. The system creates a system operation management center, a numerical simulation center, a data center, a decision command center and a client-side service center, all of which are of different management levels and function levels. By means of division and cooperation of the different centers, computer resources of centers of units of the watershed water environment can be integrated, a resource pool is formed, services are provided according to demands of functions of the centers of the units of the watershed, the problems, such as waiting time losses, the low watershed scale simulation computing speed, low efficiency and resource waste for repeated construction, of a traditional watershed model system due to serial computation can be solved, the watershed water environment simulation efficiency is greatly improved, hardware resources and data resources of the whole watershed are integrated, water environment management, current situation evaluation, future trend prediction and sudden event emergence simulation and decision support of the whole watershed are achieved, and safety of the watershed water environment is guaranteed.
Owner:珞珈浩景数字科技(湖北)有限公司

Dynamic digital right management method and system based on identification password

The embodiment of the invention provides a dynamic digital right management method and a system based on an identification password. The method mainly includes: a KGC generates identification password public and private key pairs of a user and sets the key pairs in a USBKEY; a client activates the USBKEY according to a personal identification password PIN password inputted by the user, and obtains an identification password private key of the user set in the USBKEY; digital signature operation of a message is performed by employing the identification password private key of the user, signature information is obtained, and the message and the signature information are transmitted to a right management platform server; the right management platform server obtains an identification password public key of the user via the KGC, signature verification operation of the signature information is performed, and after the passing of the signature verification, media files are processed online according to the authority of the user. According to the method and the system, identity authentication and data encryption operation of dynamic digital right safety protection can be performed by employing the identification password public and private key pairs of the user, the client does not adopt a digital certificate, the problem of complicated management of the digital certificates is avoided, and the operation speed of the system is increased.
Owner:AEROSPACE INFORMATION

Method and device for dynamic management of secondary cells in carrier aggregation

The invention discloses a method and device for dynamic management of secondary cells in carrier aggregation. A primary cell is configured for user equipment (UE) by an evolved Node B (eNB). The method comprises the following steps of: firstly selecting secondary cells, wherein the secondary cells are supported by the UE, have the coverage area the same as that of the primary cell, and comprise different-frequency neighbor cells which are located in the coverage area of the primary cell and configured for the UE; and selecting the secondary cells for the UE from the rest different-frequency neighbor cells of the primary cell when the number of the secondary cells for the UE can not meet the bandwidth needs of the carrier aggregation. The device comprises a secondary cell selection module and a secondary cell additional selection module. The method and the device have the advantages that the problem of secondary cell management in the carrier aggregation is solved, and the dynamic management of the secondary cells is realized by flexibly using the existing neighbor cell configuration technology and measurement technology, so that a key technical support for the realization of a carrier aggregation function is provided.
Owner:ZTE CORP

Power distribution net box type transformer environmental parameters on-line monitoring system

The invention relates to a power distribution net box type transformer environmental parameters on-line monitoring system which includes the steps that aiming at any one of box-type transformer substations, the power distribution net box type transformer environmental parameters on-line monitoring system is provided with a plurality of sensors, wherein at least the temperature of a high pressure charged body in the environmental parameters of the box-type transformer substations, the high frequency partial discharge, the temperature and humidity in the box-type substation are monitored correspondingly by the sensors, and the monitored data of the various sensors are received and sent to a front-end data acquisition unit of a monitoring center based on a wired or wireless communication mode. The data processing server device of the monitoring center carries out the storage and processing analysis for the received data to generate a real-time dynamic monitoring curve and produces an audible and visual alarm when the monitored data exceed a set threshold value, and meanwhile the alarm information can notify attendants in the relevant areas in a text message form, so that the time of incident response is shortened and the economic loss is reduced.
Owner:SHANGHAI OUYI INTELLIGENT NETWORK +3

Method and system for protecting condition privacy of internet of vehicles based on certificateless batch verification

The invention discloses a method and a system for protecting a condition privacy of an internet of vehicles based on certificateless batch verification. The method comprises the following steps: a key generation center KGA and a track authentication center TRA jointly generate a master key and a system parameter of the internet of vehicles; according to the system parameter and vehicle user real identity information, the TRA generates a pseudonym identity of a vehicle user; the KGC generates a partial private key of the vehicle user; the vehicle user generates an own key; the vehicle user signs a message; an RSU carries out verification on a signature; and the RSU carries out the batch verification on the signature. According to the method and the system disclosed by the invention, by adopting a certificateless cryptography system, the unsolvable inherent certificate management problem and the certificate maintenance problem in the traditional public key cryptography system are effectively solved; and meanwhile, the key escrow problem caused by an identity-based cryptography system is also avoided; by adopting a batch verification technology, the signature verification efficiency in the internet of vehicles is improved; and in the internet of vehicles, the key generation center KGA and the track authentication center TRA are adopted to realize the condition privacy protection on the internet of vehicles.
Owner:HOHAI UNIV

(Building Information Modeling) BIM based plan graph and first view-angle split-screen synchronous display method and system

The invention provides a BIM based plan graph and first view-angle split-screen synchronous display method and system. The method comprises loading and displaying a BIM stereo model; matching a navigation norm with a model bearing; generating a corresponding plane graph and placing a virtual camera; generating a corresponding first-person view-angle graph according to the camera position and view-angle information; displaying the view-angle bearing through the navigation norm visually, and providing a compass function; adjusting the view angle of the first-person view-angle graph according to user instructions, an adjusting the projection view angle direction of the virtual camera in the plane graph according to current view-angle data; and using the plane graph and the virtual camera projection as one portion and the first-person view-angle graph as the other portion to be displayed synchronously in a same screen. By means of the method and the system, a plane drawing and the first-person view-angle stereo graph are combined, the model bearing and the compass are combined, and accordingly, detail members can be observed and searched visually, the site actual engineering member and model member matching problem can be determined visually, construction management is facilitated, the requirement for the personnel technology is reduced, and even general workers can observe, record and search for the detail members according to images displayed on the same screen.
Owner:SHANGHAI TONGZHU INFORMATION TECH

Large-grid distributed real-time database system and data management method thereof

The invention discloses a large-grid distributed real-time database system and a data management method thereof. The system comprises a wide-area distributed real-time database storage system (1), a globally unique identifier analysis and service positioning system (2), a sub-system internal real-time data access system (3) and a distributed service agent (4), wherein the wide-area distributed real-time database storage system is used for storing real-time data in a wide-area distributed environment and efficiently indexing the real-time data by a globally unique identifier; the globally unique identifier analysis and service positioning system is used for analyzing the globally unique identifier and positioning a logical space in which the real-time data is accommodated and a corresponding service agent by using the globally unique identifier; the sub-system internal real-time data access system provides service for the network access of the real-time data in a sub-system on the basis of the wide-area distributed real-time database storage system; and the distributed service agent is connected with the globally unique identifier analysis and service positioning system and the sub-system internal real-time data access system and provides the service for cross-area and cross-system sharing and access of the real-time data. By the invention, the sharing and management of the mass real-time data in the wide-area distributed network environment can be realized.
Owner:NARI TECH CO LTD +1

Encrypting method base on biology characteristic information

InactiveCN101350724AThere is no key leakage problemPrevent decryption of informationUser identity/authority verificationCharacter and pattern recognitionPlaintextPassword
The present invention relates to an encryption method based on biometric information. The encryption method provides a dual-factor encryption method based on the biometric information and the secret key, and a single-factor encryption method based on the biometric information. And the encryption method can be used in the fields of network and information security, bio-certification, biometric encryption, and so on. The dual-factor encryption and decryption of the information by the user both require the biometric information and the secure secret key or password which is automatically selected; if either of the biometric information and the secure secret key is not correct, the correct plaintext information can not be decrypted. The single-factor encryption and decryption of the information by the user only requires the biometric information. The encryption method can prevent the non-intended message recipient from decrypting the information; the attacker who obtains the decryption key of the other people can not complete the correct decryption process; the decryption process and the physical identity verification are completed simultaneously; the legitimacy of the identity of the decrypting person is verified; and the system has higher security.
Owner:XIDIAN UNIV

Centrally controlled time division multiplexing wireless communication micro base station network

The invention discloses a centrally controlled time division multiplexing wireless communication micro base station network. The conventional wireless technology can only provide a narrow-band service because of the limitation of bandwidth and quality. The wireless bandwidth can be promoted only by three methods, namely increasing a used frequency range, improving the frequency spectrum efficiency and increasing a frequency spectrum multiplexing rate. But both the two methods, namely increasing the used frequency range and improving the efficiency, have impassable theoretical boundary, and only the method for increasing the frequency spectrum multiplexing rate has potential of being partially increased by over ten thousand times. Therefore, the method for increasing the frequency spectrummultiplexing rate becomes an optimal way for meeting the future application of the wireless broadband. The centrally controlled time division multiplexing wireless communication micro base station network solves a series of problems caused by the high-density micro base station network architecture. The main properties of the centrally controlled time division multiplexing wireless communication micro base station network greatly surpass the conventional mobile communication technology and the quality and capacity of the wireless network are promoted to a level approximate to the wired network for the first time.
Owner:高汉中

Intelligent motor vehicle exhaust emission diagnosis method and apparatus thereof

The invention provides an intelligent motor vehicle exhaust emission diagnosis method and an apparatus thereof and relates to a wireless communication technology field. The apparatus mainly comprises vehicle terminal equipment formed by a vehicle on-board diagnosis (OBD) II automobile emission monitoring system and a vehicle wireless transceiver system. A monitoring center, a city traffic highway and a gateway are provided with monitoring stations. The vehicle terminal equipment carries out channel scanning, searches a monitoring station coordinator and emits an access network request. After the network is connected successfully, the vehicle terminal equipment sends a license plate number and information whether the exhaust emission exceeds a standard and the like to the monitoring station coordinator. The monitoring stations establish the network, receive the information of the vehicle terminal and transmit data to a vehicle monitoring database of a monitoring center computer so as to monitor and manage the vehicle exhaust emission. By using the method and the apparatus of the invention, detection, maintenance and management of the automobile exhaust emission can be integrated into one body so that a requirement of environment protection can be satisfied. And the method is reasonable and simple. An apparatus structure is simple. Usage is convenient and cost is low.
Owner:SHIJIAZHUANG TIEDAO UNIV

Electronic invoice system based on blockchain and realization method

The invention provides an electronic invoice system based on a blockchain and a realization method. The method includes steps: (S1), application registration: a tax bureau terminal generates a privatekey on a blockchain system according to a requirement of a taxpayer and generates a public key and an address through the generated private key; (S2), return of the private key: the taxpayer can inquire his own invoice according to the address generated by the tax bureau terminal and perform identity authentication or decryption through the public key and the private key; (S3), invoice purchase:the tax bureau terminal writes an invoice balance of the taxpayer into the blockchain system and returns the invoice balance to a taxpayer terminal; (S4), invoice issuing: the taxpayer terminal inputsinvoice data, encrypts the input data and then uploads the encrypted data to the blockchain system; and (S5), invoice inquiry: invoice information is inquired according to the address and the privatekey of the taxpayer terminal. The system and the method are advantageous in that the degree of mutual trust is high, data cannot be tampered, the data traceability is realized, interconnection and intercommunication are achieved, and distributed storage and decentralization can be realized.
Owner:FORESEE TECH

Method for analyzing behaviors of concerned persons

The invention relates to the technical field of big data analysis, and discloses a method for analyzing behaviors of concerned persons. The method comprises the steps of counting place data and extracting characteristic values; counting the personnel data and filtering and cleaning the personnel data to obtain characteristic values of the personnel; obtaining a set and a place set of suspected criminals by adopting a classification algorithm based on the characteristic values; carrying out collision analysis on the concerned person characteristic data and the place characteristic data, and carrying out multi-dimensional data resonance to obtain persons and places with possible cases; enabling the label data of the same kind to generate resonance characteristic integral superposition or other processing methods to realize real-time dynamic integration of a target, setting a threshold value according to the integral, carrying out threshold value division of different grades and presenting early warning information of different early warning grades; pushing the early warning condition to related departments to formulate processing measures. According to the scheme, the management problem of concerned personnel in current public security management is solved, and the behavior analysis of the concerned personnel is timely, efficient and accurate in combination with multi-dimensionaldata.
Owner:SICHUAN JIUZHOU ELECTRIC GROUP

Cable running state intelligent monitoring system

A cable running state intelligent monitoring system comprises a field monitoring system and a data intelligent monitoring and managing platform. A monitoring data transmission system is arranged between the field monitoring system and the data intelligent monitoring and managing platform. The field monitoring system comprises a first-level grounding net communication device. The monitoring data transmission system is provided with a second-level grounding net communication device. Compared with the prior art, the cable running state intelligent monitoring system has the advantages that the problem of online monitoring and managing of key positions of urban power grid cables is solved, the decision basis for route optimization design, running state evaluation, maximum dynamic current-carrying capacity control and defect overhaul is provided for the design department, the scheduling department and the running detection department, a cable running defect diagnosis and analysis model is set up, the health condition of high voltage cables is judged through the model, the life cycle of the cables is periodically managed, and the aims of intelligent cable running management such as intelligent analysis, safety precaution, residual life evaluation and the like are achieved. The cable running state intelligent monitoring system has the advantages of being reliable in performance, convenient to install, high in compatibility and the like.
Owner:ZHEJIANG TUWEI ELECTRICITY TECH

Tunnel safety monitoring information early warning system based on BIM

The invention discloses a tunnel safety monitoring information early warning system based on BIM. The system comprises an integration device, a data acquisition device, a central server, an alarm device, an access control device and the like. The integration device is connected to the central server through the data acquisition device. The central server is connected to the alarm device and the access control device. Compared with a traditional danger early warning technology, by using the system of the invention, two-way alarm is performed on people and a vehicle machinery, and through a GPSintelligent monitoring and locking technology, the machinery during a construction process is forcedly reset and locked so as to protect the safety of construction personnel and reduce safety accidents to a greater extent; and management personnel can accurately and timely grasp the number of construction personnel and the vehicle machineries in a tunnel, a problem can be timely discovered, and safety construction is ensured and omnibearing management to construction site personnel is realized. A BIM technology and a safety early warning technology are combined, the comprehensive monitoring and management of tunnel machinery construction are realized, and simultaneously the probability of safety accidents is reduced.
Owner:CHINA RAILWAY 18TH BUREAU GRP CO LTD

NAND Flash fault tolerant system based on FPGA (Field Programmable Gate Array)

ActiveCN105702300ASolve bad block detection and management problemsImprove storage performanceStatic storageAddress mappingField-programmable gate array
The invention discloses an NAND Flash fault tolerant system based on an FPGA (Field Programmable Gate Array). The NAND Flash fault tolerant system comprises a Flash bad block management subsystem, a USB (Universal Serial Bus) communication subsystem and an upper computer, wherein the Flash bad block management subsystem consists of the FPGA and a Flash array, and is used for detecting factory bad blocks by querying a flag bit of Flash in a spare area, querying return states of a reading operation, a writing operation and an erasing operation to detect lost bad blocks, and recording addresses of all the bad blocks. The Flash is partitioned into three logical areas, namely, a mapping good block area, a bad block area and an information storage area respectively, and an address mapping table is built and stored in the information storage area. The FPGA serves as a core controller, is communicated with the upper computer through the USB communication subsystem, and can receive a control instruction sent by the upper computer and upload data. A usage condition, including a space size of the good block area, a data storage status and the like of a current NAND Flash array can be queried through the upper computer; automatic detection can be performed to update the address mapping table; and stored data in the Flash array can be read, and data can be stored in the Flash array.
Owner:ZHEJIANG UNIV

Power grid three-dimensional design result data management system and digital management method thereof

The invention discloses a power grid three-dimensional design result data management system and a digital management method thereof. The system comprises a three-dimensional design result data management device, an interface conversion device connected with the data management device, and an owner terminal connected with the interface conversion device. The data management device is used for recording the power grid three-dimensional design result; the interface conversion device is used for establishing a conversion relation, and is further used for handing over the conversion relation and the power grid three-dimensional design result to the owner terminal in a digital seamless way; and the owner terminal reads and stores the three-dimensional design result in a local disk file according to the conversion relation. The power grid three-dimensional design result data management system and the digital management method thereof are provided in the invention, the whole set of technical scheme fills the technology gap in the field of power grid three-dimensional design result data management, the actual state that the power grid three-dimensional design result is disjointed with construction, operation, management and monitoring is radically solved, and technical merit and work efficiency in design, building and management of the power grid are both improved.
Owner:GUANGDONG ELECTRIC POWER DESIGN INST
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