417results about How to "Flexible modification" patented technology

A distributed lock management method based on a storage area network SAN belongs to the network storage field. The distributed lock management method is characterized in that all node servers of a cluster form multiple master-slave mode sub-clusters, namely, Quorum; one node in the sub-clusters is used as the master server and the other nodes are slave servers; the multiple sub-clusters include one State Quorum and a plurality of Lock Quorums, which are respectively in charge of the management of the birth-death state of the system nodes and the management of a read-write visit lock in a name space; the State Quorum is formed by all the nodes and the Lock Quorum is formed by nodes of arbitrary number, the sizes and the structures of the State Quorum and the Lock Quorum can be flexibly configured by the client; both the State Quorum and the Lock Quorum follow the sub-cluster detection protocol, and all the nodes can select the only master server in the Quorum through the protocol to configure a normal Quorum; all the Lock Quorums respectively manages the different sections of the name space, are not overlapped and are respectively vested with different weights according to different service capacities; all the Lock Quorums independently count the load conditions, therefore when the lock management task charged by one Lock Quorum is too heavy, the load balancing process is triggered to distribute part task of the Lock Quorum to the other Lock Quorums. The invention is easy for flexible configuration and has good properties, high extensibility and high reliability.

The invention is a light flight simulator, belonging to a simulator to simulate air flight, comprising 6-freedom moving platform, movement controller, pattern processing computer, helmet, master control force feedback unit, sound synthesis and reproducing device, computer for processing models and kernel calculation, driving handle, pedals, switches and handgrips, where the 6-freedom moving platform comprises main beam, truss structure, driving handle, pedal, screw, motor, and chassis, as well as switches, handgrips and other parts equipped on cabin. And the invention implements 6-freedom full dynamic simulation, effectively reduces structural height, and has features of small volume, lightweight, simulation reality and low price.

The invention discloses a method for preventing interruption, comprising the following steps of: receiving a coming message when a function program is operated; searching a functional priority list, and then carrying out operation to the function program and the coming message according to the search result, wherein, when the search result is that the priority of the coming message is lower than the priority of the function program, operation to the function program and the coming message is carried out according to the search result, including that the function program is continued to be operated, and the prompt of the coming message is shielded simultaneously. The invention also discloses a terminal used for preventing interruption. The method and the terminal for preventing interruption have the advantages that the order of priority of the function program of the communication terminal can be set and modified flexibly according to requirements, thus satisfying the use requirements and having the advantage of convenient operation.

An embodiment of the invention provides a distributing method, a controller, a device, and a system for a virtual network. A lessee sends to a leaser a leasing request for leasing a virtual network resource, and the leasing request carries a network parameter value required to be satisfied by the virtual network resource required to be leased by the lessee. The leaser according to the network parameter value carried in the received leasing request, when determining that allocation of the virtual network resource satisfying the network parameter value to the lessee is enabled, allocates the virtual network resource satisfying the network parameter value to the lessee, and sends to the lessee a leasing feedback message notifying the lessee of successful leasing of the virtual network resource. The efficiency of virtual network allocation to the lessee by the leaser is improved, and modification of the leased virtual network according to the self requirement of the lessee can be flexibly performed. The invention relates to the field of communication technology.

The invention provides a frequency sweep and mobile phone measurement report-based method for automatic frequency optimization. The method specifically and efficiently grasps the improvement of wireless coverage quality on user groups from user group hierarchy, associative network quality and user awareness through the association and integration of frequency sweep data and mobile phone measurement report data so as to achieve a better balance among the user awareness, the network quality and various performance assessment indexes, reduce blindness and avoid fluctuations in network quality.

The invention belongs to the technical field of intelligent construction site management, and discloses a video image based intelligent construction site regional management and intrusion detection method and system. The method includes: automatically recognizing an area divided by placement markers in a monitoring area based on a video monitoring image, adopting a mixed Gaussian model to model avideo image background, and extracting a foreground image containing a moving object; performing median filtering and morphological preprocessing on the foreground image, extracting connected domain features and LBP texture features of the moving object, and adopting the two-level tracking strategy; performing intrusion detection on each extracted moving object and the region detected in the image; sending a sound and light alarm signal according to a regional management specification for a detected illegal intrusion event. The tracking of the moving target adopts the two-level tracking strategy of the connected domain block features and the LBP features, thus ensuring the real-time property and the accuracy of the target tracking.

There is provided a sensor node management method in which a user is unconscious of a service break even when a sensor node has failed among a plurality of sensor nodes assuming intermittent operation. Moreover, it is possible to provide a flexible sensor node management method capable of freely modifying the observation grading (space, time) in accordance with a user's desire. A base station (30) for containing a plurality of intermittently operating sensor nodes includes a sensor management table (4) for managing the sensor nodes, a group management table (5) for grouping a plurality of sensor nodes, and an operation timing control unit (3). The operation timing control unit (3) decides the operation interval and the relationship for starting each of the sensor nodes. Moreover, the base station and the sensor node have a counter value as a reference of the sensor node operation interval and the operation start phase, which are periodically synchronized.

The invention relates to a position-error real time compensation device of numerical control machine. The position-error real time compensation device that is machine- outside-coordinate-bias-based comprises a compute and process module, an acquisition and transmitter module of a temperature sensor and a numerical control interface control module. A processing system of the compute and process module collects temperature signals of numerical control machine while receiving signals of machine coordinate location from the numerical control system, entering the signals into a mathematical model of positional error that is previously set up to obtain compensation value and delivering the compensation value to the numerical control machine by an inter face of the numerical control system to complete the whole compensation process. The invention completes the compensation operation by design of the interface and software, which does not affect previous numerical control system and processor. The hardware is relatively simple and the software is flexible to modify with good commonality.

The invention discloses a CT image reconstruction back projection acceleration method based on OpenCL-To-FPGA. Acceleration of the CT image reconstruction back projection step is achieved through an FPGA. The method comprises the specific steps that a CPU-FPGA heterogeneous computing mode with a CPU and the FPGA cooperating with each other is constructed in an OpenCL programming model, the CPU and the FPGA are in communication through a PCI-E bus, the CPU serves as a host and is in charge of serial tasks in an algorithm and the tasks of configuration and control on the FPGA, and the FPGA serves as a coprocessor and achieves parallel pipeline acceleration of back projection computing by loading an OpenCL kernel program. In the programming mode, executive programs of the FPGA are all developed through an OpenCL language similar to C / C++ in style, development is easy and convenient to perform, modification is flexible, the development cycle can be greatly shortened, and the development cost for product maintenance and upgrading is reduced; moreover, the new method is based on an OpenCL frame, codes can be fast transplanted between platforms, and the method is suitable for being extended and applied to cooperative acceleration of a multi-processor heterogeneous platform.

The invention discloses a software interface generating system and a software interface generating method based on extensible markup language (XML) Schema and belongs to the technical field of information processing. The software interface generating system comprises an XML Schema management module, an XML Schema analysis module, a software interface generating module and a data verifying and updating module in sequential connection. According to the software interface generating method, management interface selection provided by the XML Schema management module is used for generating XML Schema files of an software interface; the XML Schema analysis module obtains a document object model (DOM) tree structure; the DOM tree is converted into a hypertext markup language (HTML) DOM tree structure by the software interface generating module to form the final software interface; and the data verifying and updating module verifies data uploaded by users through the XML Schema files. The system and the method solve the problems that the software interface design period is long, the multiplex rate is low, the interface code modification cost is too high, and the like.

The invention relates to a user behavior data collecting method and system. The user behavior data collecting method comprises the following steps of (a) receiving a request of accessing an application, which is sent by a client; (b) calling a pre-customized user behavior data rule; (c) generating user behavior insertion data according to the called user behavior data rule; (d) inserting the user behavior insertion data into the application, so as to generate an application page; (e) obtaining user behavior data according to a click event of the application page by a user. The user behavior data collecting method and system provided by the invention have stronger universality; the repeating work of user behavior data configuration can be reduced; the collected user behavior data rule can be sensitively customized, modified or deleted; the different types of user behavior collection data can be managed in a concentrated manner.

The invention discloses a multi-channel data acquisition device for a submarine pipeline magnetic flux leakage internal detector. The multi-channel data acquisition device comprises a hall sensor, a multi-path switch, an instrument amplifier, an analog-to-digital (AD) conversion module, a field programmable gate array (FPGA), a digital signal processor (DSP) and a secure digital memory (SD) card, wherein the multi-path switch has a two-stage series structure; the multi-channel data acquisition device is provided with heat insulation cotton so as to adapt to a specific high-temperature and high-corrosion environment of a submarine pipeline; the hall sensor converts the magnetic induction density into voltage; the voltage is switched by the multi-path switch, so that a signal is transmitted to the instrument amplifier; the instrument amplifier amplifies a weak signal; the AD conversion module sets sampling for eight times through software, performs analog-to-digital conversion, and transmits a digital value to the FPGA after the conversion; and the DSP receives FPGA cached data, digitally filters and compresses the cached data, and finally stores the data into the SD card. Due to a dual central processing unit (CPU) structure consisting of the FPGA and the DSP, a large amount of data can be stored and processed; the device has the characteristics of high speed, multiple channels, high resolution and the like; furthermore, pipeline transportation safety is guaranteed; and early maintenance is facilitated.

The invention provides a reconfigurable satellite telemetering on-orbit monitoring and quantitative management system and realization method. The system comprises a satellite affair data receiving module, a satellite affair data lookup table recording and storage module, a telemetering monitoring table receiving and recording module, a telemetering monitoring table reconfiguration module, a telemetering parameter monitoring matching and updating module, a telemetering abnormity monitoring module, a telemetering parameter statistic module, a fault event packet automatic generation module, a statistic event packet automatic generation module and a bus transmission module. The system and the method have relatively high flexibility and on-orbit operability. The standardization degree of an on-orbit monitoring mode and the on-orbit automatic operation management efficiency can be effectively improved. The reconfigurable problem of the on-orbit telemetering monitoring information is solved, the quantitative management problem of the telemetering abnormity events and statistic events is solved, an interface is clear, and the feasibility is high.

The invention relates to a method and a system for automatically extracting article metadata information based on a word flow, and belongs to the technical field of information identification and extraction. The metadata information is usually input again, or existing word information is manually copied and pasted from a layout file in the prior art, which has low processing efficiency and is easyto cause mistakes. The method and the system adopt a way matched with a regular expression template to extract the article metadata according to characteristic information of the metadata in the wordflow. The method and the system match and automatically extract the metadata information aiming at typesetting rules of publications, only need to simply and manually verify the accuracy, and accelerate information extraction speed.

The invention discloses a device utilizing an RMAP protocol to realize the plug-and-play function of CAN bus equipment. The device comprises an RMAP object node controller, a CAN bus controller, a SpaceWire data interface module and an asynchronous data transceiving dual-port RAM, wherein external CAN bus interface sensing equipment is connected with the CAN bus controller, the asynchronous data transceiving dual-port RAM, the RMAP object node controller and the SpaceWire data interface module, the RMAP object node controller comprises an object command packet decoding module, a verification control module and an object node controller module, a DMA module, an object response packet coding module and a CRC data verification module, and the SpaceWire data interface module is connected with a satellite-borne computer and the RMAP object node controller. The device is advantaged in that, the RMAP object node controller is realized through an IP soft core, data conversion efficiency and data transmission timeliness are improved, and design complexity is effectively reduced.

The invention provides a network attack defense method, device and system. According to the method, bypass inspection equipment intercepts an access request sent to a server in a service system, and redirects a client sending the access request to an authentication server, so as to authenticate the verification code of the client through the authentication server; and when it is determined that the client passes the verification of the authentication server, the access request sent by the client is forwarded to the server in the service system. Through adoption of the method, the service system can defend malicious attack behaviors like DDoS more flexibly and conveniently.

The invention provides an automated testing method and equipment. In the method, an automated testing equipment generates a sequence of operation according to user operations; the automated testing equipment provides the sequence of operation for a user and generates use case files according to an editing operation of the user on the sequence of operation; the automated testing equipment converts the use case files into testing scripts; and the automated testing equipment is used for calling corresponding API (application programming interface) functions according to the testing scripts and executing the automated testing. The method and equipment provided by the invention can be utilized to realize the automated testing which is low in the cost and easy in maintenance.

The invention relates to uniformly integrated information management platform system. The system comprises uniform information management platform, platform database, central database and file server; the uniform information management platform comprises access layer, presentation layer, application layer, supporting layer and data layer; the access layer is connected with internal user; the presentation layer is connected with the uniform information management platform; the application layer comprises foreground platform and background platform; the supporting layer is connected with user interface, software interface, communication interface and internal interface; the data layer is connected with Oracle database. The advantages of the system: high stability, stable and reliable in system operation with ongoing service; high availability, web model client side, no need of special operation made by the user; high expansibility, distributed modular construction shall be adopted for the design in the system software to allow flexible in alteration setting, convenient to expansion, available to changes in the development of business; Security, the system is characterized by the perfect authority management strategy. Encryption of user name and password is made during the data transmission. Restriction is imposed on the user for the number of repeat operation.

An orthogonal frequency division communication system which enables flexible modification of the ratio of allocation between uplink and downlink transmissions, while maintaining advantages similar to those of TDD (Time Division Duplex) systems, has a base station and a plurality of mobile stations connected by uplinks and downlinks, and a plurality of mutually orthogonal frequencies are allocated, on the frequency axis and on the time axis, to the uplinks and downlinks and to the plurality of mobile stations.

The invention discloses a transformer station intelligent expert system based on editable formula scripts. The transformer station intelligent expert system comprises a real-time analysis display main module, an expert knowledge base offline configuration tool module, a knowledge database module, a processing unit in which an editable formula script preprocessing layer is combined with a rule mode matching layer, a discrete event dynamic comparison unit capable of configuring effective time domains, a rule condition delay effectiveness and delay return trigger mechanism unit and a configurable 'before happening' and 'after happening' correlation site information automatic collection unit. By the adoption of the scheme, information of a transformer station monitoring system, such as the electric quantity, signals, warning and events, can be processed in a unified and comprehensive mode, an expert knowledge base can be flexibly modified and extended, the expert system can accurately and timely assists transformer station operators on duty and maintenance staff in correctly judging and processing accidents and exceptions through intelligent warning and real-time online analysis, and therefore the new requirements oriented to digital and intelligent transformer stations are better met.

The invention relates to a precompensation method for in-band group delay fluctuation of a satellite navigation signal generating system, which comprises the following steps: (1) measuring a combined S parameter of a modulator, a filter and an amplifier in the satellite navigation signal generating system, and determining amplitude-frequency and group delay characteristic of the combination of the three devices; (2) counting the group delay characteristic of a precompensation filter according to the combined group delay characteristic; (3) obtaining the phase-frequency characteristic of the precompensation filter; (4) setting the phase-frequency characteristic of the precompensation filter to be an inverse Sinc function; (5) obtaining a system function of the precompensation filter according to the amplitude-frequency characteristic and phase-frequency characteristic of the precompensation filter; (6) obtaining a unit impulse response function of the precompensation filter; (7) setting a threshold value, and setting the quantity in the unit impulse response function, which is smaller than the threshold value, to be zero to be as a coefficient of the precompensation filter; and (8) realizing the precompensaiton filter in a digital standalone of the satellite navigation signal generating system by using the coefficient of the precompensation filter, so as to compensate the group delay fluctuation of the satellite navigation signal generating system.

The present invention discloses a neural network chip realization method used for real-time image identification, and belongs to the image identification chip technology field. The method comprises the steps of selecting and configuring a neural network model conveniently and rapidly according to the actual demands; realizing a universal neural network chip based on an FPGA, and finishing the neural network generation in the chip according to the FPGA reconstruction data provided by a compiling platform at the later period, so that a hardware platform can realize various neural networks conveniently and rapidly. The method enables the development efficiency of the neural network chip used for the real-time image identification to be improved substantially, the chip development difficulty to be reduced greatly and the project promotion speed to be improved, and enables the chip to have the characteristics of being good in expansibility, being flexible to modify, etc.

The invention discloses a speech signal processor for a cochlear implant based on a dual core processor, belonging to the technical field of cochlear implantation, which is characterized by comprising a core processor unit, an audio unit, a radio transmission unit, a storage unit and a power management unit, wherein the core processor unit comprises DSP+ARM low power consumption dual core processor OMAP-L137 and a protective circuit; the audio unit consists of an audio coder decoder, a front-end voice acquisition interface connected with a microphone and a rear-end headset output interface; the radio transmission unit consists of a baseband signal generation circuit, an amplification and a filter circuit, a modulation circuit and a power amplification circuit; the storage unit is composed of an NAND Flash circuit, an SDRAM circuit and a Micro SD card circuit; and the power management unit is composed of double throw switch, a diode, a fuse, an external power input interface of +5V, an external lithium battery input interface of +4.2V, a main power management circuit, a first voltage conversion circuit and a second voltage conversion circuit so as to satisfy requirements of all parts of a system.

The invention discloses an information system relating to the index, searches, storage and control displaying of the related data. The invention index system at least comprises two data blocks with relating relationship, each data block consists of position information blocks and content information blocks, the content information blocks are the other data besides the position information blocks in the data blocks, the position information blocks record the position information of the other data blocks related to the data blocks and generate index data according to the prescribed steps; the index method is that: the method generates data block aggregation according to the information input by the users, uses the method of generating key words by corresponding index system to generate index words, and then proceeds index to the index words and displays the result. The invention proceeds the displaying control based on the data blocks and the geometrical relationships in the existing displaying district. The invention is utilized to directly index the relating information in the related data, so as to conveniently realize the concurrent processing of multi-users and commonly share the information which is managed.

The invention provides a spatial light reception demodulation device comprising a four-quadrant photodetector, pre-transimpedance amplifier, a low pass filter, a low noise amplifier circuit, a sampling clock PLL circuit, a high-speed analog-to-digital conversion circuit, an FPGA processing circuit, an output interface circuit, and a photoelectric detector power supply and temperature compensation circuit. The spatial light reception demodulation device provided by the invention adopts the integrated design of precise tracking signals of spatial light positions and light communication signals, integrates spatial light position error tracking calculation with light reception demodulation, thereby simplifying an optical front end of spatial light communication; by means of the amplification of a low noise amplifier and FPGA amplitude detection and control, high sensitivity, wide dynamic range reception and amplification, and precise tracking position error information extraction of spatial light are realized; and meanwhile, by means of the software radio idea, high speed A / D collection and FPGA full digital processing are adopted to realize reception and collection, demodulation and recovery and position error control of the spatial light, and the temperature compensation of the detector.

The invention provides a USB (universal serial bus) peripheral processing unit, comprising a processor, an upstream USB interface, a downstream USB interface, a status recognition unit, a data selector, a file management control chip and a bus conversion chip. The processing unit is characterized in that the upstream USB interface is used for being connected with a host machine; the downstream USB interface is used for being connected with a USB peripheral; the status recognition unit is used for detecting insertion and removal of the USB peripheral connected with the downstream USB interface and transmitting insertion or removal information of the USB peripheral to the processor; the data selector is used for connecting or disconnecting the upstream USB interface and the downstream USB interface under the control of the processor; the file management and control chip is used for operating the file system of a USB mass storage facility under the control of the command transmitted through the internal bus when the downstream USB interface is connected with the USB mass storage facility; and the bus conversion chip is used for converting the USB bus of the upstream USB interface into an internal bus.

The invention discloses an oil field control system which comprises a central control station and a plurality of underground submersible servodrive control subsystems communicating with the central control station, wherein each underground submersible servodrive control subsystem is connected with a production module in the well where the underground submersible servodrive control subsystem is, and the underground submersible servodrive control subsystem transmits the underground condition to the central control station according to the command and controlling parameters received from the central control station or a man machine interaction interface of the subsystem when controlling the operation of the production module. Through the invention, the operation condition of the submersible servodrive system in each well in the whole oil field can be accurately monitored and reasonably controlled by an operator, thus being favorable for improving the production efficiency and saving the operating cost.

The invention relates to a force control loading and layout variable vertical vibration experimental device which comprises an n-type steel frame, a vertical vibration plate, a loading spring, an acceleration sensor, a displacement sensor and an adjustable damper. The n-type steel frame comprises two supporting stand columns, a top transverse beam, a bottom transverse beam and a bearing platform, and the bearing platform is used for fixing a vibration absorber and located between the top transverse beam and the bottom transverse beam. The vertical vibration plate can be elastically and vertically arranged between the top transverse beam and the bottom transverse beam in an up-and-down vibration mode. One end of the loading spring is connected with the vertical vibration plate, the other end of the loading spring is connected with an electric vibration loading table, and the loading spring is used for exerting the predetermined external force on the vertical vibration plate. The acceleration sensor is arranged on the vertical vibration plate and used for measuring the accelerated speed of the vertical vibration plate in the vibration stress loading process. The displacement sensor is arranged between the vertical vibration plate and the top transverse beam and used for measuring the displacement value of the vertical vibration plate in the vibration stress loading process. The adjustable damper is arranged between the vertical vibration plate and the top transverse beam and used for adjusting and controlling the damping of the vertical vibration plate in the loading vibration stress loading process.

The invention discloses a method and a system for recommending a display keyword of a data object. The method comprises the following steps of: receiving a current data object of a display keyword to be recommended; judging whether a relevant history data object which is relevant to the current data object exists in a recommended library or not, if so, acquiring a display keyword which corresponds to the relevant history data object from the recommendation library, and determining a display keyword which corresponds to the current data object; otherwise, acquiring a display keyword which corresponds to the current data object according to a query log in an online way. Due to the adoption of the method and the system provided by the invention, the coverage rate of the query log is increased, and meanwhile, the requirement of instantaneity is met.

The invention provides a configuration file modification method and a configuration file modification device, which are used for improving the configuration file modification accurate rate and the configuration file modification efficiency. According to the method, the located region of contents to be modified in a configuration file is determined according to annotation marks in the configuration file, in the region, parameters to be modified are determined, and the parameter values of the parameters to be modified are modified according to the current environment and the parameter value of each parameter in each environment. The parameter values of the configuration file are modified in an annotation mode in the embodiment of the invention, so the modification of the parameter values of the configuration file is more flexible and more convenient, in addition, the annotation mode is adopted for parameter modification so that the error rate of the configuration file modification is reduced, the modification correctness is improved, and in addition, the parameter modification efficiency in the configuration file is improved.