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72results about How to "Reduce interaction frequency" patented technology

Video broadcast creation method and system, access device and management device

The embodiment of the invention discloses a video broadcast creation method and system, an access device and a management device. The method comprises the steps that the access device parses a video broadcast request sent by a user terminal based on a first communication connection to acquire a live broadcast application identifier, and sends the live broadcast application identifier to the management device based on a second communication connection; the management device requests a live broadcast group identifier corresponding to the live broadcast application identifier from a live broadcast group service device based on the second communication connection, and sends the live broadcast group identifier to the access device based on the second communication connection; the access device acquires stream push address information corresponding to a stream push service device, and sends the live broadcast group identifier and the stream push address information to the user terminal based on the first communication connection; and the user terminal creates a video broadcast environment according to the live broadcast group identifier and the stream push address information. By adopting the video broadcast creation method and system, the access device and the management device disclosed by the invention, the interaction frequency of the user terminal and the service devices can be reduced, the workload of the service devices can be reduced, and the efficiency of creating and using the video broadcast environment can be improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Time synchronization method of open loop network for TDMA (Time Division Multiple Address) node based on kalman filter

The invention discloses a time synchronization method of an open loop network for a TDMA (Time Division Multiple Address) node based on a kalman filter. The time synchronization method comprises the following steps that: an NTR (Network Time Reference) node broadcasts a beacon message; after a non-NTR node receives a broadcast beacon, a time slot number of transmitting an inquiry message by the non-NTR node is determined and a local clock is updated; the non-NTR node and the NRT node interact an RTT-I (Round-Trip Time) message and an RTT-R message, and a measurement time is computed; the non-NTR node corrects the local clock by utilizing a synchronous filter, and checks a local prediction time through the measurement time obtained through RTT inquiry so as to correct, and a phase and a temperature excursion frequency at non-NTR time are estimated through iteration. According to the iterative estimation method, precise time synchronization can be implemented by a synchronous terminal. A synchronous filter can keep synchronization continuously within a longer time without updating of the measurement time. The time synchronization method solves the problem of time synchronization of the TDMA node under a high-dynamic quick travel environment, and has the advantages of capability of improving network synchronization precision, simple protocol processing, small amount of occupied resources and low equipment requirement.
Owner:SPACE STAR TECH CO LTD

OpenFlow large-scale flow table elastic energy-saving and high-efficiency search framework and OpenFlow large-scale flow table elastic energy-saving and high-efficiency search method

The invention discloses an OpenFlow large-scale flow table elastic energy-saving and efficient search architecture and method, and the architecture comprises an active precise flow layer which is usedfor caching active precise flow table entries in a network, and achieving the high-speed and low-power flow table cache search; a convergent flow layer which is used for storing universal flow tableentries so as to relieve the problem of insufficient TCAM storage capacity and improve the TCAM cache hit rate; wherein the convergent flow layer comprises a TCAM and a DRAM; the individual flow layeris used for storing accurate flow table entries which do not meet the aggregation condition temporarily so as to improve the packet forwarding capability of the OpenFlow switch; the bulk flow layer includes an SRAM and a DRAM. According to the method, the sparse grid is constructed by using the cross linked list, the cache space is dynamically applied, all accurate flows meeting conditions can bestored, no empty table item exists, the space utilization rate is very high, and the method can adapt to dynamic change of network flow and is rich in elasticity.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Micro base station energy saving method based on macro base station collaboration and business filtering

The invention relates to a micro base station energy saving method based on macro base station collaboration and business filtering. According to the method, type distinction is carried out on arrival business at first, and a macro base station collaborates with a micro base station. The micro base station enters a dormant window with certain duration when processing no business. Meanwhile, in the dormant window, the arrival small-volume business is processed by the macro base station via collaboration. When a close window terminates, the micro base station judges whether to enter a next close window. If a large amount of business in the service area of the micro base station is queuing in the cell macro base station or a large amount of business is queuing in the micro base station is found at a decision moment, the micro base station is opened, and the large-volume business within the range of the micro cell is processed by the micro base station. The small-volume business originally queuing in the macro base station is still processed by the macro base station. If no large-volume business in the service area of the micro base station is queuing in the micro base station, or a small amount of small-volume business arriving at the macro base station is found at the decision moment, the micro base station enters the next close window.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Intelligent loading/unloading platform and loading/unloading method

The invention discloses an intelligent loading / unloading platform and a loading / unloading method. The intelligent loading / unloading platform comprises a TOS system interface module, a remote control system interface module, an OCR system interface module, an intelligent cargo tallying system interface module, a backstage server and a remote-control data handling-over operation module, wherein the TOS system interface module is used for acquiring ship loading / unloading operation data from a TOS system; the remote control system interface module is used for acquiring operation state information from the remote control system; the OCR system interface module is used for receiving an identification result of the OCR system; the intelligent cargo tallying system interface module is used for pushing operation state information to an intelligent cargo tallying system after ship loading or unloading; the backstage server is used for realizing data storage, data interaction among the all interface modules and submitting the data to the all systems according to loading / unloading operation service processes; and the remote control data handling-over operation module is used for matching the result obtained through identification of the OCR system with the ship loading / unloading operation data of the TOS system, acquiring the operation state information after ship loading / unloading and conveying the operation state information to the TOS system. According to the intelligent loading / unloading platform and the loading / unloading method disclosed by the invention, unified deployment access of a plurality of docks is supported, the situation that handling-over operation of shipsides of the all docks can be carried out in a centralized way in one operation center can be realized, and unified dispatching of operators at the each dock is conveniently realized.
Owner:XIAMEN CONTAINER TERMINAL GRP CO LTD

Man-machine cooperation natural language space navigation method and system

The invention discloses a man-machine cooperation natural language space navigation method and system, and the method comprises the steps of enabling a robot to receive a space navigation voice instruction transmitted by a user, and converting the space navigation voice instruction into a corresponding navigation instruction array according to a preset grammatical rule, wherein the space navigation voice instruction belongs to a natural language; enabling the robot to collect the position and attribute of a landmark object in an environment where the robot is located; determining a spatial cognition map of the robot according to the attributes of the landmark objects; enabling the robot to perform cognitive reasoning on the navigation instruction array based on the spatial cognitive map, determine the spatial three-dimensional coordinates of a destination to be reached by the robot required by the navigation instruction array in the spatial cognitive map, and determine the action to beexecuted when the robot reaches the destination; and enabling the robot to execute a related navigation action according to the spatial three-dimensional coordinates of the destination and the actionto be executed so as to reach the destination. According to the present invention, the understanding of the robot on the intention of the human natural language space navigation instruction is enhanced.
Owner:HUAZHONG UNIV OF SCI & TECH

Hybrid query optimization method and device based on big data

The invention discloses a hybrid query optimization method and device based on big data. The method comprises the following steps: converting a received hybrid query statement into a corresponding logic tree; determining a first sub-statement and a second sub-statement according to the connection relationship between the nodes in the logic tree and the information of the nodes; routing the first sub-statement to a corresponding storage engine for the storage engine to execute the corresponding first sub-statement, and obtaining an intermediate query result corresponding to the first sub-statement; and routing the second sub-statement to a corresponding calculation engine, so as to enable the calculation engine to perform calculation processing according to the intermediate query result corresponding to the first sub-statement and the second sub-statement to obtain a final query result. By the adoption of the scheme, the computing capacity of the storage engine can be fully utilized, the interaction frequency between the storage engine and the computing engine is reduced, and the defect that in the prior art, storage expenditure is increased due to the fact that a large amount of source data which are not processed by the storage engine need to be read in for reprocessing can be overcome.
Owner:BEIJING QIHOO TECH CO LTD

Location privacy protection method and system based on collaborative positioning information

ActiveCN108632139AReduced relationship strengthReduce intensityData switching networksPrivacy protectionGeolocation
The invention discloses a location privacy protection method and system based on collaborative positioning information. The method comprises the following steps: 1) obtaining the relationship strengthbetween a user and a friend according to historical interaction data; 2) storing a relationship strength value of the user and the friend in a database and periodically updating the database; 3) sending, by the user, a piece of shared content with geographic location information to a server; 4) extracting friend information (i.e., the collaborative positioning information) and the geographic location information from the shared content; 5) performing location privacy protection based on the relationship strength and the collaborative positioning information; and 6) sending a location privacyprotection result to the friend. According to the location privacy protection method and system disclosed by the invention, the influence of the interaction between the user and the friend and the interaction between the friend and the user on the relationship strength between the user and the friend are simultaneously considered, so that if the interaction frequency between the friend and the user is reduced, the relationship strength between the user and the friend is reduced.
Owner:SOUTH CHINA UNIV OF TECH
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