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77results about How to "Reduce data transfer volume" patented technology

Internet content?encryption release method and system

InactiveCN103825885AReduce data transfer volumeReduce network and server loadTransmissionWeb pageServer load
The invention relates to a webpage?offline?browsing field, and particularly relates to an Internet content?encryption release method and a system. The method comprises steps of dividing an original file containing to-be-released content into a plurality of plaintext segments by a release server and generating control segments containing segment control information, carrying out encryption on each plaintext segment according to the control segment by the release server to generate ciphertext segments, packaging the control segment and each ciphertext segment by the release server to form a new file, releasing the new file to at least one downloading server for downloading by a client by the release server, downing the new file form the downloading server by the client, sending a decryption?request to the release server by the client, acquiring a corresponding decryption?password according to the decryption?request and sending the decryption?password to the client by the release server, and receiving the decryption?password by the client, using the decryption?password to carry out decryption?processing on each ciphertext segment and recombining each plaintext segment to generate an original file. According to the method and the system, network and server load when the file is released can be effectively reduced.
Owner:SYSU CMU SHUNDE INT JOINT RES INST

Virtual electronic fence positioning method and apparatus, and virtual electronic fence monitoring method and system

ActiveCN105575044AReduce the number of targetingReduce data transfer volumeAlarmsUse of timeData transmission
The invention discloses a virtual electronic fence positioning method and apparatus, and a virtual electronic fence monitoring method and system. The virtual electronic fence positioning method comprises searching and recording the current WIFI signal combination; determining that the WIFI signal combination is unmarked safe combination, acquiring the positioning data, and the positioning data to a server; receiving a determination result signal returned from the server; if the determination result signal is a not-out-of-range signal, marking the WIFI signal combination as safe combination; and if the determination result signal is an out-of-range signal, alarming to prompt. The virtual electronic fence positioning method and apparatus, and the virtual electronic fence monitoring method and system solve the technical problem that a current children positioning monitoring device consumes great energy and is shot in the stand-by time, so that the virtual electronic fence positioning method and apparatus, and the virtual electronic fence monitoring method and system can reduce the positioning number and the data transmission quantity, can save the energy and prolong the using time for one-time charging, and can realize children or the aged monitoring in a safety area.
Owner:GUANGDONG XIAOTIANCAI TECH CO LTD

Method for combining GIS system with split joint wall system and device thereof

The invention discloses a method used for combining a GIS system with a splicing wall system and a device thereof. The invention is characterized in that a GIS client terminal and a GIS server terminal are adopted; the operation instruction of the customer is received by the GIS client terminal; a geographical information data is acquired from a GIS data base and an instruction used for acquiring the geographical information data from the GIS data base is generated; the instruction is sent to the GIS server terminal; the GIS server terminal executes a corresponding operation according to the instruction; and the corresponding geographical information is displayed on a splicing wall. Therefore, the invention has the advantages that the instruction which is sent to the GIS client terminal by the GIS server terminal comprises operation information, thereby being small in the data transmission quantity; the data obtained from the GIS data base is displayed on the GIS server terminal, thereby ensuring the quality of the image, effectively utilizing the high resolving capability and high definition of the splicing wall, and effectively achieving the combination between the GIS system and the splicing wall system; besides, the customer only needs to operate at the GIS client terminal, thereby being convenient for operation.
Owner:GUANGDONG VTRON TECH CO LTD

Blue algae monitoring device and blue algae monitoring method

The invention discloses a blue algae monitoring device and a blue algae monitoring method. The method comprises the following steps: collecting a plurality of sample images; utilizing the sample images to respectively compose a sample blue algae image set and a monitored image training set; calculating and obtaining a blue algae pixel characteristic threshold value according to the sample blue algae image set and the monitored image training set; collecting the image to be monitored; dividing the image to be monitored into a blue algae area and a non-blue algae area according to the blue algae pixel characteristic threshold value; and giving an early-warning message when the ratio between the area of the blue algae area and the area of the image to be monitored exceeds an early-warning threshold value. In the invention, the blue algae are monitored automatically in real time according to water-surface images; and the early alarm is given according to the explosion intensity of the blue algae. The collecting and processing of the image to be monitored and the explosion intensity evaluation calculation are realized by the monitoring device; and the explosion intensity result of the blue algae is only transmitted to a remote monitoring center, thus reducing the data transmission quantity. The early alarm message and the glue algae positioning information are together sent to the remote monitoring center, thus facilitating the positioning of the explosion position of the blue algae.
Owner:INST OF COMPUTING TECH CHINESE ACAD OF SCI

Visual sensor network multi-target tracking method, device and system

The embodiment of the invention discloses a visual sensor network multi-target tracking method, device and system. The method comprises the following steps of using an edge calculation node to receivethe pedestrian target data obtained by detecting a pedestrian target from an acquired image by a visual sensor node; according to the pedestrian target data, constructing the pedestrian target cohesion model, and correlating the detection response of the same pedestrian target to form the target trajectory; tracking the pedestrian target corresponding to the target trajectory, obtaining the tracking result, and sending the tracking result to the cloud computing center, thereby realizing the effective reduction of the background pixel pollution, while segmenting the boundary between adjacent targets, greatly reducing the amount of data transmission. By using the edge calculation node to construct the pedestrian target cohesion model to form target trajectory and tracking the pedestrian target corresponding to the target trajectory, and sending the tracking results to the cloud computing center, the search space can be effectively reduced, the accuracy of data association can be improved, and the user's privacy can be protected at the same time.
Owner:TSINGHUA UNIV

Browser resource showing method and system

InactiveCN103412896AReduce data transfer volumeImprove transmission speed and response speedSpecial data processing applicationsData transmissionLink-local address
The invention discloses a browser resource showing method and system. The method comprises the followings: first screen equipment calls a browser, and receives label information of the network resource selected from the window of the browser by a user; the first screen equipment acquires the link address of the network resource and sends the link address to second screen equipment according to the label information of the network resource; the second screen equipment is linked to a server where the network resource locates according to the link address of the network resource; the second screen equipment downloads the network resource from the server and shows the network resource on the display screen of the second screen equipment. According to the invention, the browser of the first screen equipment is taken as a web page content showing window, and the second screen equipment is taken as a playing platform for network video, therefore, the data transmission quantity between the first screen equipment and the second screen equipment is reduced, the transmission speed and the response speed are increased, and the second screen equipment is enabled to be independent of the first screen equipment and free from the influences of the first screen equipment.
Owner:SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD

Data transmission method of network disaster-tolerant system

The invention relates to a data transmission method of a network disaster-tolerant system. The system comprises a master node and at least one spare node; meta data information is stored in each node; the meta data information comprises information of the master node related to output transmission of the node in the last time and information of data written in the previous time; and the method comprises the following steps that: S1, the spare node and the master node are connected to shake hands and exchange respective meta data information; and S2, the master node compares the self meta data information with the meta data information of the spare node and determines one of four replication modes so as to realize data transmission. According to the invention, which mode is adopted is automatically judged while shaking hands again; the time required by disaster-tolerant recovery is shortened; furthermore, if the master node writes in data while incremental synchronization is carried out, a data incremental bitmap is not updated immediately; but, after incremental replication in this round is finished, incremental synchronization is carried out again after data between a head pointer of the spare node and a head pointer of the master node is converted into the data incremental bitmap; and therefore, the data integrity of the spare node is ensured.
Owner:深圳市傲冠软件股份有限公司

Low-power-consumption camera, monitoring management control system and control method thereof

The invention relates to the field of low-power-consumption cameras, in particular to a low-power-consumption camera, a monitoring management control system and a control method thereof. The low-power-consumption camera monitoring management control system comprises a low-power-consumption camera, a cloud server and an application terminal. The low-power-consumption camera is provided with an intelligent analysis module and a transmission module. The intelligent analysis module analyzes image data collected by the low-power-consumption camera and adjusts the working state of the low-power-consumption camera according to the collected image data, and the transmission module sends the image data to the cloud server. According to the invention, the low-power-consumption camera adjusts the working state of the low-power-consumption camera according to the collected image data, and is high in real-time performance; and the low-power-consumption camera is automatically switched to enter a normal working mode or a low-power-consumption mode or a closed mode, so that the data transmission amount can be greatly reduced, the storage burden of a cloud server is reduced, the communication energy consumption is reduced, and the power consumption of the multi-low-power-consumption camera monitoring management control system is reduced.
Owner:GREE ELECTRIC APPLIANCES INC +1

Low-bandwidth data reconstruction method for binary coding redundancy storage system

The invention provides a low-bandwidth data reconstruction method for a binary coding redundancy storage system. The low-bandwidth data reconstruction method for the binary coding redundancy storage system comprises the steps that (1) the corresponding relation between a lost data block and row vectors of a data check matrix is established, and low-bandwidth check matrixes are determined according to sub-matrixes composed of column vectors of the data check matrix corresponding to data blocks which are not lost in the storage system; (2) whether the number of the low-bandwidth check matrixes is larger than one is judged; (3) if yes, whether the I/O pressures, caused by the fact that the lost data block is recovered through all the low-bandwidth check matrixes, on each storage node are equal or not is judged; (4) if not, the low-bandwidth check matrix exerting the smallest I/O pressure is selected to conduct data reconstruction on the lost data block. Compared with the prior art, the low-bandwidth check matrixes are determined, the storage node with the smallest I/O reading pressure is found for recovery of the lost data block, and therefore the network bandwidth consumption caused by data reading of the system storage nodes can be reduced in the process of data block reconstruction.
Owner:山东骑风电子科技有限公司

Electric transmission line visual monitoring and alarming system

The invention discloses an electric transmission line visual monitoring and alarming system which comprises a scenery complementary power supply system and an on-site monitoring and early warning system. The on-site monitoring and early warning system comprises a plurality of cameras, a control module, a PCI, a public network communication module, an alarm signal output interface and an alarm apparatus. The control module comprises a CPU, a video decoder, a video encoder, an instruction analyzing/compiling module and an RS458 interface, wherein the video decoder, the video encoder, the instruction analyzing/compiling module and the RS458 interface are connected with the CPU. Each camera is used for obtaining on-site video images of an electric transmission line, and comprises an analog video speed dome camera, a pan-tilt and a video server, wherein the pan-tilt and the video server are installed on the analog video speed dome camera. The instruction analyzing/compiling module is connected with the public network communication module through the PCI, the public network communication module is in communication with a remote host through a wireless public network, the CPU is connected with the alarm apparatus through the alarm signal output interface, the CPU is connected with each pan-tilt through the RS458 interface, and the CPU is connected with each video server through the video decoder. By the adoption of the technology, the electric transmission line visual monitoring and alarming system is high in response speed, high in monitoring efficiency, and suitable for being generally popularized and applied in a power grid.
Owner:GUANGZHOU POWER SUPPLY CO LTD +1

System and method for efficiently transmitting mass sensing data of internet of things

The invention relates to an internet of things network model, in particular to a system and a method for efficiently transmitting mass sensing data of an internet of things. According to the system and the method, the problems of high energy consumption, short network life cycle, narrow application range, weak convergence and poor practical application in a traditional internet of things network model are solved. The system for efficiently transmitting the mass sensing data of the internet of things comprises a plurality of sensing nodes, a plurality of sink nodes, a plurality of relay nodes and a management platform, wherein various sensing nodes are automatically networked to form a plurality of sensing node self-organizing networks; each sink node is positioned in a coverage area of each sensing node self-organizing network and in a blind zone between every two sensing node self-organizing networks; various sink nodes are networked to form a sink node network; the relay nodes are positioned in the coverage area of the sink node network; the management platform is positioned in the coverage area of the relay nodes. The system and the method disclosed by the invention are suitable for the large-scale internet of things.
Owner:ZHONGBEI UNIV

Novel communication method for earthquake early warning

The invention provides a novel communication method for earthquake early warning, which comprises the following steps that (1) the earthquake early warning critical information of each station is sampled and processed by an earthquake early warning critical information acquisition module installed on the station and is transmitted to an early warning center, and the response speed of earthquake early warning is effectively improved through reducing earthquake early warning transmission data transmitted by the station to the early warning center at the moment of the occurrence of an earthquake; (2) the earthquake early warning critical information acquisition module adopts a real-time online mode, does not transmit mobile seismic data at ordinary times and immediately transmits the earthquake early warning critical information generated by processing to the early warning center when mobile seismic waveforms are monitored so as to effectively relieve the transmission delay of the earthquake early warning critical information; and (3) the earthquake early warning critical information acquisition module adopts an earthquake early warning key data priority transmission and communication mode, i.e. the earthquake early warning critical information is transmitted firstly, and then other waveform data is transmitted after the end of seismic oscillation so as to improve the timeliness of the earthquake early warning critical information. The method is also applicable to intensity speed data transmission of the stations.
Owner:INST OF CARE LIFE

Deep learning image compressed sensing algorithm and system based on Internet of Vehicles

The invention relates to a deep learning image compressed sensing algorithm based on the Internet of Vehicles, and the algorithm comprises the steps: partitioning compressing and sampling a picture obtained by an Internet of Vehicles intelligent terminal through a measurement matrix, and obtaining a measurement data set Y; transmitting the measurement data set Y to a cloud server in a wireless manner, and importing the measurement data set Y into a trained deep neural network model, i.e., recovering the measurement data set Y into intermediate reconstruction through a full connection layer toobtain a preliminary reconstructed image X '; reconstructing the image through a residual denoising network to obtain a final reconstructed image X ''; and determining a loss function of the originalimage, and reversely transmitting the updated network weight by the loss function to realize optimization. The invention further discloses a deep learning image compressed sensing system based on theInternet of Vehicles. The data transmission quantity is greatly reduced, the bandwidth pressure is reduced, the flow charge and the limitation of the storage space are greatly saved, and meanwhile, the real-time response recovery, the accuracy of the reconstructed image and the suppression of the image noise can achieve better effects.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Time-space compression network coding based data transmission method in wireless sensor network

The invention discloses a time-space compression network coding based data transmission method in a wireless sensor network, which mainly solves problems of great total amount of data transmission and large number of transmission times of a data transmission method in the existing wireless sensor network. The data transmission method comprises the implementation steps of (1) carrying out time-space compression sampling at a node transmitting terminal so as to acquire an original data packet; (2) transmitting the original data packet by using the intra-cluster space-time correlation and inter-cluster inter-flow network coding; and (3) recovering the original data packet by using a gradient projection algorithm GPSR_BB in a receiving terminal sink node. According to the data transmission method, the time-space correlation of perception data is dug in a node sampling stage, the total amount of data is reduced, the data transmission amount is compressed by adopting intra-cluster transmission and inter-cluster transmission, and the number of transmission times is reduced, so that the life time of the wireless sensor network is prolonged, and the data transmission method can be applied to acquisition, transmission and recovery of data in the wireless sensor network.
Owner:XIDIAN UNIV

Temporary train speed limiting method and device, readable storage medium and electronic equipment

The invention relates to a temporary train speed limiting method and device, a readable storage medium and electronic equipment. The method is applied to an area controller and comprises the steps: receiving a temporary speed limit verification command sent by an automatic train monitoring system, the temporary speed limit verification command comprising a starting point logic section ID and an end point logic section ID, and verifying the temporary speed limit verification command; according to a verification result of the temporary speed limit verification command, executing an operation of setting a temporary speed limit or an operation of canceling the setting of the temporary speed limit; when the train is in the jurisdiction range of the area controller, inquiring whether a temporary speed limit value exists in a logic section in the train movement authorization range or not, and under the condition that the temporary speed limit value exists, sending movement authorization information containing the temporary speed limit value to the train; and enabling the train to execute speed limiting braking operation according to the movement authorization information. Therefore, the data transmission quantity is reduced and the system failure rate is effectively reduced.
Owner:BYD CO LTD
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