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145results about How to "Save bandwidth" patented technology

Multi-screen interaction method for intelligent terminal and intelligent television

The invention discloses a multi-screen interaction method for an intelligent terminal and an intelligent television. The method comprises the following steps: (1) creating network connection between every two of the intelligent television, the intelligent terminal and a server, (2) acquiring a same interface from the server by the intelligent television and the intelligent terminal respectively, and (3) executing operation in the local interface of the intelligent terminal by the intelligent terminal, meanwhile sending operational orders to the intelligent television, and executing the same operation by the intelligent television in the corresponding position of the local interface of the intelligent television. The multi-screen interaction method for the intelligent terminal and the intelligent television has the advantages that transmitting a plurality of data between the intelligent terminal and the intelligent television is not needed; the intelligent terminal and the intelligent television access own data, that is, the intelligent terminal and the intelligent television independently operate; but short synchronous orders are sent when the picture is synchronous; the bandwidth is saved; the speed is high; and the interface synchronicity is strong.
Owner:QINGDAO TONGXIN INNOVATION LAB TECH CO LTD

Method and system for realizing multicast in Internet protocol version 4 over Internet protocol version 6 (IPv4overIPv6) tunnel

ActiveCN102546382ASmooth transitionSave bandwidthData switching networksAddress mappingIPv4
The invention provides a method and a system for realizing multicast in an Internet protocol version 4 over Internet protocol version 6 (IPv4overIPv6) tunnel. The method comprises the following steps that: a user side gateway encapsulates an Internet group management protocol (IGMP) multicast group addition request into an IPv6 tunnel for transmission, maps an IPv4 multicast group address into an IPv6 multicast group address, generates a multicast listener discovery (MLD) request message and transmits the MLD request message to a network side; the network side updates an IPv4 multicast tree forwarding table and an IPv6 multicast tree forwarding table; after receiving an IPv4 multicast data packet, the network side maps the IPv4 multicast group address into the IPv6 multicast group address, and downstream forwards an IPv6 multicast data packet obtained by the address mapping; a multicast replication point transmits the multicast-replicated IPv6 multicast data packet to a user side; and after receiving the IPv6 multicast data packet, the user side gateway decapsulates the IPv6 multicast data packet according to a multicast address mapping relationship, recovers the IPv4 multicast data packet and transmits the IPv4 multicast data packet to a user terminal.
Owner:CHINA TELECOM CORP LTD

Cognitive radio based communication network system in intelligent power grid and networking method

InactiveCN103179696AHigh efficiency transmissionSave bandwidthNetwork topologiesData transmissionRadio frequency
The invention discloses a cognitive radio based communication network system in an intelligent power grid and a networking method. The system comprises a sensor node, a convergence node and a backbone network, a radio communication module in the sensor node comprises a cognitive selection control module, and a ZigBee radio frequency module with a radio communication function and a 230MHz radio frequency module. The cognitive selection control module periodically detects channel availability of empty frequency ranges in a network, and enters the radio modules corresponding to the selected frequency ranges for communication if the channel availability meets communication requirements, the sensor node senses frequency spectrum emptiness and selects proper frequency ranges to communicate with the convergence node, and the convergence node collects and compresses uploaded data and uploads the data to the backbone network on the basis of power line carrier waves. By combining the 2.4GHz frequency range with the 230MHz frequency range, applying cognitive radio into transmission of the intelligent power grid to sense current frequency spectrum occupancy, and automatically switching among multiple frequency ranges, intelligentized and efficient data transmission is realized.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Large-scale distributed monitoring video data processing method and device

The invention provides a large-scale distributed monitoring video data processing method and device. The method comprises the following steps of at a video data analysis front end, obtaining monitoring video stream data, carrying out dynamic modeling on the video stream data, extracting a target area in the video stream data, calculating a feature value of the target area, extracting target metadata data information based on the feature value through target feature identification, and generating a video data processing result; and at a video data processing rear end, obtaining data processing result metadata messages and pictures, and carrying out secondary processing on the data processing result metadata messages and pictures. According to the method and the device, through utilization of a high-performance camera device deployed at a front end, the high-definition monitoring video data is analyzed and processed at the front end; compared with the mode of analyzing the high-definition video data at a rear end, the mode has the advantage of reducing network transmission bandwidths and video analysis and computing resources; and the new high-definition video data analysis and transmission solution scheme for large-scale high-definition monitoring video deployment and service application is provided.
Owner:SHENZHEN INFINOVA

Method and device for realizing multi-person session, computer equipment and storage medium

ActiveCN108881783AReduce the frequency of data interactionSave bandwidthSpecial service provision for substationTelevision conference systemsRoute serverTraffic volume
The invention provides a method and device for realizing a multi-person session, computer equipment and a storage medium. The method comprises the following steps of creating the multi-person sessionbased on multi-person session requests sent by terminals; receiving audio data acquired by the terminals corresponding to various member identifiers of the multi-person session, wherein the audio datacomprises the member identifiers corresponding to various terminals; for each member identifier of the multi-person session, respectively carrying out audio mixing processing on the audio data of theterminals corresponding to other member identifiers except the member identifier to form a path of mixed audio data, and obtaining mixed audio data corresponding to various member identifiers; and sending the mixed audio data corresponding to various member identifiers to the terminals corresponding to the member identifiers. Therefore, one terminal only needs to receive a path of audio data after audio mixing processing by a server, the audio data of other terminals which are distributed by the server are not required to be received respectively, the data interaction frequency of the terminals and the server is reduced, and the bandwidth and the flow are saved.
Owner:TENCENT TECH (SHENZHEN) CO LTD
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