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556results about How to "Live Update" patented technology

Automatic update of online social networking sites

ActiveUS20110047182A1Cumbersome nature is reducedFrequent updateDigital data processing detailsOffice automationWeb siteGeotargeting
Systems and methods maintain at least one point of interest data file within a computer-readable storage medium and automatically identify a current user location of a user based on a geographic positioning feature of a portable electronic device that is maintained within a first predetermined distance from the user. The systems and methods automatically compare the current user location with the point of interest data file to identify whether the user is located within a second predetermined distance of a point of interest maintained within the point of interest data file. If the user is within the second predetermined distance of a point of interest, the systems and methods automatically create a user status data file. The user status data comprises data identifying that the user is currently at the point of interest. The user status data file is comprised of, but is not limited to, video, still pictures, and audio captured at the current user location as well as textual description of the user's participation at the point of interest. The systems and methods automatically upload the user status data file to a social networking web site associated with the user as an activity post associated with the user.
Owner:III HLDG 6

Vehicle real-time information system based on the third-generation mobile communication

The invention relates to a vehicle comprehensive information system based on the third-generation (3G) mobile communication, comprising a server and a vehicle-loaded terminal communicating with each other via a 3G network. The vehicle-loaded terminal comprises a vehicle bus interface module, a 3G mobile communication modem module and an embedded-type control module, and the server comprises an information receiving module, an information storage module, a function module and an information issuing module. The vehicle bus interface module is accessed to an inside control bus of a vehicle through an OBD interface, obtains the vehicle running information and transmits the information to the embedded-type control module; the embedded-type control module obtains and processes the vehicle running information and communicates interactively with the server through the 3G mobile communication modem module connected with the embedded-type control module; the information reception module receives the information of the vehicle-loaded terminal transmitted by the 3G network; the information storage module stores the information of the information receiving module and the application information; the function module is used for realizing the application functions of vehicle positioning, map navigation, real-time path plan, theft prevention of vehicles and the like; and the information issuing module is used for transmitting information provided by the server to the vehicle-loaded terminal.
Owner:赵阳 +2

Central air conditioner intelligent control system based on wireless sensor network and method

The invention discloses a central air conditioner intelligent control system based on a wireless sensor network and a method, and belongs to the technical field of central air conditioner control. The central air conditioner intelligent control system comprises an intelligent information management center, wireless communication devices, a central air conditioner information monitoring and control module, a room information monitoring and control module and the like. The invention adopts the method that the central air conditioner intelligent control system is used to monitor information, build a data base, calculate current load of the system, and realize advance, accurate and optimized control of a central air conditioner system by combining a short-term loading forecasting method based on similar dates and fuzzy control technology, as well as taking the temperature variation of supply / return chilled / cooling water of a central air conditioner as the manipulated variable. The central air conditioner intelligent control system has the characteristics of great communication capacity, guaranteed communication quality, powerful network functions, wide monitoring range and extensive control quantity of the central air conditioner system, optimized control, high control accuracy, good energy saving effect and the like, and can be widely used in energy-saving optimizing control of various buildings, and is particularly suitable for energy-saving optimizing control of central air conditioners of intelligent buildings.
Owner:CHONGQING UNIV

Full-automatic library service station and operation method thereof

InactiveCN101908251AUnderstand the status of the collectionAnti-smashGripping headsCash registersLibrary cardLibrary services
The invention provides a full-automatic library service station and an operation method thereof. The service station comprises a computer, a displayer, a printer, a keyboard, a library card reader, an identification card scanner, a library card transaction unit and a mechanical conveying device, wherein the computer serves as a main control unit; the displayer and the printer serve as information output units; the keyboard serves as an information input unit; the library card reader and the identification card scanner serve as information input equipment; the library card transaction unit is connected with the computer; the mechanical conveying device is controlled by the computer; the service station main body is a sealed cabinet body which comprises an operation platform and book shelves; the displayer, the keyboard, the printer, the library card reader, the identification card scanner and the library card transaction unit are positioned on the operation platform which is also provided with a book inlet and a book outlet; book separation columns are formed on the book shelves by clapboards; each book separation column corresponds to a piece of position information; under the control of the computer, the conveying device conveys books between the book inlet, the book outlet and the shelves by manipulators arranged per se.
Owner:东莞市树煜智能图书设备科技有限公司

A cross-chain method between blockchains and a main blockchain

ActiveCN108600301ARealize cross-chain operationFully automatedFinanceTransmissionSmart contractComputer science
The invention relates to the technical field of blockchains, in particular to a cross-chain method between blockchains and a main blockchain. According to the cross-chain method between blockchains, amain blockchain and a target blockchain exist in a cross-chain operation, and at least one sender exists in each of the main blockchain and the target blockchain. The method includes the following steps: searching of match information; establishment of a trigger transaction; monitoring of sub-chains to judge whether unlocking occurs; unlocking success; and unlocking failure. The invention also discloses the main blockchain, which includes an intelligent contract module and a monitoring sub-chain module. The cross-chain method has no special requirements for the target blockchain and can realize the cross-chain operation between the main blockchain and all other blockchains. An effect that a transaction T in the main blockchain and a transaction T' in the target blockchain are carried outsimultaneously or not is realized. Moreover, the monitoring sub-chain module of the main blockchain can automatically trigger an unlocking process of the transaction T in the main blockchain, thus realizing automation of the cross-chain operation.
Owner:青岛墨一客区块链有限公司

Method and system for testing fatigue of driver

The invention discloses a method and a system for testing the fatigue of a driver. The method comprises: a step of detecting faces, in which an infrared camera is used to capture a video image, an elliptic template is used to search a region and facial feature holes are used for verification so as to obtain a face region in the image; a step of extracting facial features, in which an FRST method and an ellipse fitting method are used to extract eye, nose and mouth positions in the face region; a step of tracking the facial features, in which the extracted facial features are used to extract data on real-time updating of eye positions in the facial features and a motion track is kept; and a step of judging fatigue, in which whether the driver is in a fatigue state is judged by calculating a PERCLOS value according to the result of the tracking of the facial features. The method and system improve the accuracy of the face test of the driver, lower the calculation complexity and improve the reliability and accuracy of the test of the fatigue.
Owner:NETPOSA TECH

Remote playing method and system for media content

The invention provides a remote playing method and system for media content. The method comprises: generating program list according to a material file and a made playing plan, indicating playing property in the program list, and uploading the material file and the program list to a FTP material server; generating a playing command, indicating the target terminal and the download address of the theme strategy file in the playing command, and saving the playing command in a database; a service gateway acquiring the playing command saved in the database, and forwarding the playing command to the terminal by an access gateway; downloading the theme strategy according to the download address of the theme strategy file in the playing command; analyzing the theme strategy to acquire the theme file download address, downloading the theme file and analyzing to obtain the download address of the program list; acquiring the material file after downloading the program list, and playing the material file according to the playing property of the program list. The invention interconnects the media terminals distributed in different places, and can perform automatic retrieval and remote playing to the media material according different latitudes.
Owner:CHINA TELECOM CORP LTD

Multi self-governing system router level topology processing system and method

The invention discloses a multi-autonomous system router level topological treatment system and a method. The system comprises at least one BGP border router and a plurality of single-autonomous systems, and also comprises a routing information gathering probe used for establishing an equal relationship conversation with the BGP border router in the network to gather a BGP route updating message in the network and sending the gathered routing information updating message to an analyzing and processing unit, the analyzing and processing unit used for analyzing and processing the BGP route updating message gathered by the information gathering probe and the OSPF route updating message gathered by the single-autonomous system and also used for updating the information database and ensuring the topologies generated by the single-autonomous system to be connected as an integrated router level topology. The multi-autonomous system router level topological treatment system and the method is based on the construction of the routing message and the update of the router level topology to ensure that the connection relationship of the topology and the router in the network can keep consistent, and the influence to the network can be reduced.
Owner:JIANGSU ZHONGLI ELECTRONICS INFORMATION TECH CO LTD +1

Decoration information model-based VR virtual decoration method

InactiveCN106600709AReduce the waste of decoration manpower and material resourcesIncreased realism and immersionInput/output for user-computer interactionData processing applicationsThree dimensional modelView angle
The invention discloses a decoration information model-based VR virtual decoration method. The method comprises the steps of S1, shooting a two-dimensional photo of a room all-directionally, generating a three-dimensional model of the room through a multi-dimensional fusion method, and converting the three-dimensional model into a VR scene model; S2, constructing a decoration component characteristic module based on the VR scene model; S3, sending a decoration instruction according to the decoration component characteristic module and the VR scene model, and performing decoration on the three-dimensional model; and S4, obtaining observation point information of a user, establishing a VR scene, corresponding to current observation point information of the user, in the three-dimensional model, and displaying the VR scene in a VR wearable device. According to the method, a corresponding relationship between the VR scene model and the three-dimensional model is established, so that VR scenes in different view angles can be updated in real time, and the vividness and immersion of VR virtual decoration are improved.
Owner:SUZHOU KUWAI CULTURAL MEDIA CO LTD

Underground high-precision navigation map establishment system and establishment method

ActiveCN109059942AOvercoming the problem of poor modeling accuracyImprove consistencyInstruments for road network navigationIntrinsic safetyUnderground tunnel
The invention relates to an underground high-precision navigation map establishment system and an establishment method. On the basis of the system comprising an underground geographic information system, an intrinsically safe modeling device and each intrinsically safe ultra wide band (UWB) anchor node which is set in each underground tunnel, the establishment method is further designed and introduced. According to the whole design, an underground high-precision navigation map can be rapidly established, environment model functions can be dynamically updated, a modeling result is input into the underground geographic information system, and a multilayer map model capable of providing auxiliary positioning and route planning for automatic movement of vehicles underground is established.
Owner:CHINA UNIV OF MINING & TECH

Method, apparatus and system for updating configuration information

ActiveCN106572173ALive UpdateAvoid the problem of not being able to update in real timeTransmissionOperating systemLocal configuration
The embodiment of the invention provides a method for updating configuration information. The method applied to a service server comprises: a configuration updating pushing message pushed by a notification server is received, wherein the configuration updating pushing message carries at least one configuration identifier that is a configuration identifier corresponding to to-be-updated configuration information in the service server, one configuration identifier corresponding to one piece of configuration information includes at least one configuration data; the configuration information corresponding to the at least one configuration identifier is obtained from a configuration management server; and according to the obtained configuration information corresponding to the at least one configuration identifier, local configuration information is updated. Using the configuration information updating method, resource of the service server can be saved and the local configuration information can be updated in real time. In addition, the embodiment of the invention also provides an apparatus and system for updating configuration information.
Owner:阿里巴巴华南技术有限公司

Endoscopic observation support system, method, device and program

A virtual field of view of a virtual endoscope, which is positioned at a position corresponding to a detected position of an endoscope in a 3D medical image, is determined based on a position of a structure of interest, the corresponding position and a posture of the endoscope, and an angle of view of the endoscope, such that the position of the structure of interest is contained within the virtual field of view and the virtual field of view has continuity with the field of view of the endoscope. From the 3D medical image inputted, a virtual endoscopic image having the determined virtual field of view with the view point thereof being the corresponding position of the endoscope is generated. The generated virtual endoscopic image is displayed on a WS display.
Owner:FUJIFILM CORP

Internet user behavior analyzing and early-warning system and method

The invention relates to an Internet user behavior analyzing and early-warning system and method. A data packet acquisition module acquires a complete network data packet and stores the complete network data packet into a data storage server, data are retrieved and filtered through a data packet mining module, the data obtained through filtering are classified according to different classifications, and the effectiveness of the classified data is guaranteed. The classified data obtained through the retrieval are matched with early-warning conditions stored in a matching template, the behaviors of a user for using the Internet can be analyzed, and the harmfulness of the behavior of the user for using the Internet is automatically judged. Through a matching template automatic generating module of the system, a template database can be intelligently updated through combination of manpower and machines, the timeliness of the matching template is guaranteed while manual cost is reduced, and the method for judging the behaviors of the user for using the Internet is different from a traditional fixed calculation method. The matching results of detailed data of the user for using the Internet in all the classifications are collected and fed back, and thus network monitoring personnel can perform first-time early warning on network harms to happen.
Owner:孙伟力

Non-intrusive PLC abnormality detection method based on power consumption analysis

The invention discloses a non-intrusive PLC abnormality detection method based on power consumption analysis. The method comprises the following steps: connecting a resistor in series between the power module of a PLC and the CPU module of the PLC, acquiring a voltage drop across the resistor by using a data acquisition device to obtain the power consumption information of the PLC in operation; subjecting the acquired power consumption to sample division, and extracting an appropriate feature set from each sample to form a characteristic value sample; training a neural network model based on a long short term memory unit according to the characteristic value sample during the normal operation of the PLC, and comparing a newly acquired to-be-tested power consumption characteristic value sample with the characteristic value information predicted by a LSTM network in order to determine whether the sample to be tested is an abnormal sample and thus determine whether the PLC is attacked. The method does not need to modify PLC hardware and software configuration, is non-invasive relative to an original industrial control system, can monitor the PLC in real time, and can detect the attack without the need to acquire the abnormal sample during the attack on the PLC.
Owner:ZHEJIANG UNIV

Intelligent queuing method and system for hospitals

The invention discloses an intelligent queuing method and an intelligent queuing system for hospitals, and relates to the field of medical digit. The method makes new designs on determination of the time for appointed registration, and a queuing strategy for appointed registration patients, temporary registration patients and priority diagnosis patients, simultaneously adopts scientific queuing strategies such as the absolute priority of the appointed registration in the appointed time period, the diagnosis of the temporary registration patients / priority diagnosis patients in an idle time tr according to the sequence of a queue, the arrangement of the appointed registration patients outside the appointed time period as the temporary registration patients in the queue, and the like, and effectively and reasonably solves the diagnosis priority problem of the appointed registration patients, the temporary registration patients and the priority diagnosis patients; and the intelligent queuing system for the hospitals adopting the queuing method realizes the intellectualization and automation of the queuing, effectively solves the problem of adverse effect on the queuing caused by artificial subjective factors, and makes the queuing in the hospitals more scientific, reasonable and humanized.
Owner:ZHONGSHAN IKER DIGITAL TECH

Automatic tracking and positioning fire water monitor and automatic tracking and positioning jet flow fire-extinguishing method

The invention provides an automatic tracking and positioning fire water monitor and an automatic tracking and positioning jet flow fire-extinguishing method. The automatic tracking and positioning fire water monitor comprises a base, a support, a shell, a fire water monitor body, an infrared thermal imaging sensor, a processor, a water pump electric control valve, a horizontal stepping motor and a longitudinal stepping motor. The processor draws the coordinates of a thermal image in real time and judges the coordinates of the kindling point according to a preset temperature threshold value, and the thermal image is sent by the infrared thermal imaging sensor in real time. The fire water monitor body is positioned to the coordinates of the kindling point rapidly and tracks the coordinates of the kindling point in real time until the processor controls the water pump electric control valve to be opened and the fire water monitor body sprays water. The automatic tracking and positioning fire water monitor has the advantages of being scientific in design, rapid and accurate in positioning and capable of realizing movable fire tracking. The use method includes the steps of (1) clearing, (2) scanning, (3) judgment, (4) fire extinguishing, (5) water stop detection, (6) fire-extinguishing finishing and the like, and has the advantages of being simple, efficiency, capable of realizing movable fire tracking, complete in scanning coverage and capable of preventing detection omission.
Owner:河南联纵消防科技有限公司

Digital public transport information publishing and cluster controlling method and device

The invention relates to a method used for digital bus information releasing and group control and a device thereof. The technical measure comprises the following steps: a vehicle terminal system, an electronic station board system and a vehicle technical information management centre are arranged, the electronic station board system is the vehicle technical information management centre are connected into a bi-directional communication network by line link, the vehicle terminal system transmits the vehicle information to the electronic station board system in a wireless communication, the electronic station board system reports the information to the vehicle technical information management centre, the bus coming to station at each station can be found out by inquiring a database, the station arriving time of the bus is calculated according to experimental data including average running speed, average running time between the stations and the like, finally, the arriving time is fed back to the electronic station board system, and the arriving time is displayed to the waiting passengers in a digital way. The method can effectively solve the problems of bus reduction in city and dispatching, information releasing, passenger facilitation, intelligent management control and the like. Therefore, the method realizes intelligent bus dispatching.
Owner:JIANGSU HANDSON INTELLIGENT TECH CO LTD

Method for on-demand routing of mobile self-organizing network based on link quality

InactiveCN103415056AFast responseRealize tracking and maintenanceNetwork topologiesSelf-organizing networkRouting algorithm
The invention discloses a method for on-demand routing of a mobile self-organizing network based on link quality. The method aims at solving the problem that a most reliable route can not be found through the mobile self-organizing network on-demanding routing algorithm based on the number of shortest routes; the wireless link quality is converted into a route discovery priority and then is further converted into route discovery time delay; a source node and each intermediate node send a routing request message to each adjacent node according to time delay; when each node receives the routing request message for the first time, the routing request message is transmitted, and the routing request message received next time is directly abandoned, so that the phenomenon that a route with the optimal link state is chosen to be a routing path is guaranteed. According to the method, the optimal routing can be found in the mobile self-organizing network. In addition, on the basis of route discovery, the scheme of route state maintenance is added so that a failure node and an unstable link in the mobile self-organizing network can be found and update of the optimal routing can be achieved conveniently in real time.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Conference room management system

A conference room management system comprises a PC terminal, an LCD terminal, a service system and a file data system. The PC terminal is operated by a system manager, a web browser is used for having access to a web address of the service system, and after identity authentication is passed, each module of the service system is operated. The LCD terminal is connected to the service system through a network, a conference information list corresponding to the day of a conference room is acquired, and according to start time and stop time in conference information, corresponding conference information is displayed on the LCD terminal. The service system is a core of the conference room management, other parts are all connected through the service system, and the service system comprises a basic information management system, a conference management module, a system management module and a user parameter setting module. The file data system is used for maintaining persistent data such as files or service information generated in the system operation process. A user has access to the service system through the PC terminal so as to manage the conference information and distribute the conference information to the LCD terminal, and therefore the conference information is updated.
Owner:HITACHI ELEVATOR CHENGDU

Background updating method and vehicle target extracting method in traffic video monitoring

ActiveCN102509101AUnsatisfactory backgroundIdeal backgroundImage enhancementDetection of traffic movementVertical projectionVideo monitoring
The invention discloses a background updating method and a vehicle target extracting method in traffic video monitoring. The background updating method comprises the following step of: carrying out background updating judgment based on Canny edge detection. The background updating method solves the problem that the real-time background updating property is poor when traffic jams occur in urban cross roads and people wait a traffic light at a traffic light cross road. The vehicle target extracting method comprises the background updating method disclosed by the invention and a shadow and adhesion eliminating method. The vehicle target extracting method comprises the following step of: extracting a foreground image of a vehicle target on the premise of obtaining an ideal background based onthe background updating method; and then eliminating shadows and adhesions, wherein the shadow and adhesion eliminating method comprises the following steps of: eliminating the shadows by using a cross-correlation function, filling a hole, cutting edges, and sequentially carrying out noise reduction, vertical projection and horizontal projection, and thus the problems of target vehicle adhesion and inaccurate outline caused by the shadows are solved; and extracting an ideal vehicle target.
Owner:昆山市工业技术研究院有限责任公司 +1

Adaptive amplifying digital baseband pre-distortion method

The invention relates to an adaptive amplifying digital baseband pre-distortion method. The method comprises the following detailed steps of: step A, judging whether an input signal and an output signal of a pre-distortion system are equal or not, if so, disconnecting with a pre-distortion training module, otherwise, performing step B; and step B, using a training method of a memory multinomial coefficient of Kalman filter to set the to-be-estimated memory multinomial coefficient of the pre-distortion training module to be a state variable, establishing a state space model, and using an estimation value of the prior time and a sampling value of the present time to update the state variable to acquire the estimation value of the present time. Compared with the traditional pre-distortion scheme, the technical scheme provided by the invention has the advantages of high robustness and convergence rate; and the requirement of updating parameters in real time can be met through the technical scheme.
Owner:北京中科微投资管理有限责任公司

Method and device for identifying bad conversation

The invention discloses a method and device for identifying bad conversation applied in a mobile terminal. The method comprises: identifying called conversation information and extracting information elements in the conversation content; comparing the extracted information elements with a database, identifying a risk element, determining the risk index of the risk element; after the risk index reaches a set risk grade, sending an alarm signal to the called party. According to the invention, the content elements of the called voice conversation are extracted in real time; the content elements are compared with the database; the risk index of the conversation content is evaluated; the alarm signal is sent out; a fraud call can be judged effectively in advance; and the cheated risk is reduced.
Owner:NUBIA TECHNOLOGY CO LTD

Method, device and system for recommending search terms

The embodiment of the invention discloses a method, a device and a system for recommending search terms. The method provided by the embodiment of the invention comprises the following steps of acquiring user behavior logs of a plurality of users, user portrayal information and preset user group characteristics of a plurality of user groups; calculating group heat of search terms according to the user behavior logs, the user portrayal information and the user group characteristics; calculating group distinction degrees of the search terms according to the user behavior logs, the user portrayal information and the user group characteristics; calculating the quality of the search terms according to the user behavior logs; recommending the search terms to the users according to the group heat of the search terms, the group distinction degrees and the quality of the search terms. According to the scheme, the individual recommendation for different user groups can be realized, the timely dynamic updating capacity is achieved, the accuracy of recommendation is increased and the recommendation effect is improved.
Owner:SHENZHEN TENCENT COMP SYST CO LTD

Host performance collection proxy in large-scale network

The invention discloses a performance collection agent for large internet host computer. Wherein, obtaining basic performance information and statistic data from host computer information acquisition module; providing standard SNMP interface to response acquisition request and provide real time data; TRAP alarm-generating module and MIB table update condition set and real time detect data to active send alarm contained SNMP TRAP information if performance index over alarm threshold. This invention fits to host computer with Linux, Solaris and other like-Unix OS.
Owner:BEIHANG UNIV

Classroom cloud and education cloud collaborative teaching interaction system and method

InactiveCN105047033AAvoid problems that cannot reach the local area and affect teachingImprove experienceElectrical appliancesInteraction systemsMultimedia
The invention discloses a classroom cloud and education cloud collaborative teaching interaction system comprising an education cloud platform and multiple classroom cloud platforms. The education cloud platform is used for receiving and storing teaching resources and pushing the resources to the classroom cloud platforms according to the preset push rules, and the target classroom cloud to which the resources are pushed and the time requirement at which the resources are pushed are set in the push rules. The classroom cloud platforms are used for receiving the teaching resources pushed by the education cloud platform to be used by local teaching and collecting local resources to be uploaded to the education cloud platform. With application of the classroom cloud and education cloud collaborative teaching interaction system, the education cloud can actively push the resources to the classroom clouds when the network is idle, and teachers can use the teaching resources already pushed to the local for teaching even the network is disconnected or the network is congested in teaching so that effectiveness of classroom teaching under the condition of no network or network delay and congestion can be guaranteed.
Owner:HUAZHONG NORMAL UNIV

Wireless sensor network target positioning and tracking method

The invention discloses a target positioning and tracking method for a wireless sensor network. The method comprises the following steps: at any positioning time, estimating a position of a target according to measurement information of a sensor node, building a learning region covering the estimated position of the target, selecting an arbitrary quantity of position points in the learning region, obtaining a decision function by use of a polynomial kernel function and a mapping relationship of the distance vector from an approaching position point of an epsilon-support vector machine for regression to the sensor node and a coordinate of the position point; and obtaining an estimated value of the position of the target by inputting a distance vector from the sensor node to the target into the decision function and transmitting an estimated value of the position of the target to a base station which then fits the historical data of the position of the target and upgrades the motion patch of the target to complete target tracking. The method obviously reduces the influence of measurement errors of the sensor node on the target positioning and tracking and improves the accuracy of target tracking.
Owner:SOUTH CHINA UNIV OF TECH

Cache updating method and system, and update resource providing method and system

The invention provides a cache updating method comprising the following steps: when offline resources of a webpage are cached, identification parameters of resource files are stored; the identification parameter of the current resource file of the webpage is acquired from a server end; the identification parameter of the current resource file and the identification parameter of the cached resource file of the webpage are compared; and if the identification parameter of the current resource file and the identification parameter of the cached resource file of the webpage are different, the current resource file acts as the offline resource of the webpage to perform caching and updating. The invention also provides a cache updating system for realizing the aforementioned method, and an update resource providing method and system. According to the cache updating method and system, and the update resource providing method and system, the client terminal cache can be timely updated.
Owner:ALIBABA GRP HLDG LTD

Video target dividing method based on motion detection

The invention belongs to technique area of video monitoring and video processing in bottom layer. The method includes following steps: (1) reading out original video frame, initializing background model; (2) reading out current video frame, extracting characteristic value of video, matching old background model by using current characteristic value, analyzing statistical characterization; based on model, setting up parameters, and updating background model; (3) in current background model, accounting background distribution with largest occurrence probability; after operation of erosion and clearing up shadow, the current background is picked up. The invention segments reliable background and foreground in real time. The invention also improves segmenting speed in a certain extent and avoids error expand in order to meet requirement in real time and stability of video monitoring.
Owner:SHANGHAI JIAO TONG UNIV

A method and system for updating cache in real time

The invention belongs to the field of search technique, particularly relating to a method and system for updating cache in real time. The method for updating cache in real time comprises the following steps: step a: adding a cache updating function to a resource management server; step b: judging whether a resource record is changed, executing step c if the resource record is changed, and finishing the cache updating this time if the resource record is not changed; and step c: adding a new resource record to a database and updating the cache data in a cache list in real time. The technical scheme provided by the invention can not only ensure real-time updating on the changed resource record, but also abandon the mechanism of one-day expiration, thus the time taken by the server for searching again in the database for all keywords every day can be lessened and the user experience can be improved.
Owner:赵香芳
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