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36results about How to "Save broadband resources" patented technology

Method, device and system for downloading programs based on vehicle-mounted terminal

The invention provides a method, a device and a system for downloading programs based on a vehicle-mounted terminal. The method comprises that a first vehicle-mounted terminal receives a broadcast message which is transmitted by at least one vehicle-mounted terminal within the communication range of other vehicle-mounted terminals, the broadcast message comprises a vehicle-mounted terminal mark, a name of a program which can be downloaded and a sequence number of a downloaded program content data piece which corresponds to the program name, all broadcast messages which are received currently are inquired through the first vehicle-mounted terminal in accordance with the name of the first program to be downloaded, a vehicle-mounted terminal which transmits the broadcast message containing the first program name serves as a second vehicle-mounted terminal, and the program content data piece of the downloaded program of which is marked by the sequence number sequentially can be obtained from the second vehicle-mounted terminal. The communication bandwidth among cars is used completely to conduct multimedia information interaction, the communication number of cars and roadside stations is reduced and the roadside station bandwidth resource is saved.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Streaming media displaying method, equipment and system based on transportation rail

The invention requests to protect a streaming media displaying method and system based on transportation rail. The method comprises the following steps: a left transportation trail receives a streaming media signal message sent by at least one transportation rail in communication range of other transportation rail; the left transportation rail queries all currently received streaming media signalmessages according to the first streaming media data flow ID of the to-be-displayed streaming media, and judges whether the streaming media signal message including the first streaming media data flowID is existent; and the right transportation rail for performing displaying is determined if the streaming media signal message including the first streaming media data ID is existent. The technicalproblem that the load of a roadside dispatching station achieves the bottleneck since the mutual communication of increasing rail transportation tool and the roadside dispatching station occupies a large amount of bandwidth of the roadside dispatching station can be solved, the multimedia information interaction is performed by sufficiently utilizing the communication bandwidth, the communicationfrequency of the rail transportation tool and the roadside dispatching station is reduced, and the bandwidth resource of the roadside dispatching station is saved.
Owner:常州高清信息技术有限公司

System and method for realizing complex differential uploading of vehicle equipment data based on qp quantum state machine

ActiveCN106209993BFlexible response to uploading needsReduce redundancyTransmissionOn boardThe Internet
The invention relates to a data uploading method, and specifically relates to a system and method for realizing complex differential uploading of on-board equipment data based on a QP quantum state machine. The method comprises the following steps: S1, the QP quantum state machine is created; S2, a differential uploading module receives a message from an OBD bus or collected by an internet, and a message event triggers a QP quantum state machine processing function; and S3, the QP quantum state machine acquires data according to an uploading rule, judges the validity of the data, packages the data and transmits the data to a client through a network. According to the system and the method provided by the invention, by adopting the QP quantum state machine, an embedded system using C language as main development can deal with complex and variable uploading demands of vehicle data flexibly, deal with complex uploading rule formulated according to different business demands, guarantee the uploading of specific values closely related to the business demands, reduce the redundancy of the vehicle data, and not only reduce the broadband resources, but also reduce the storage pressure; and the availability is improved, and the business is more convenient to maintain and expand.
Owner:DALIAN ROILAND SCI & TECH CO LTD

Traffic track-based streaming media display method, device and system

The invention requests to protect a streaming media displaying method and system based on transportation rail. The method comprises the following steps: a left transportation trail receives a streaming media signal message sent by at least one transportation rail in communication range of other transportation rail; the left transportation rail queries all currently received streaming media signalmessages according to the first streaming media data flow ID of the to-be-displayed streaming media, and judges whether the streaming media signal message including the first streaming media data flowID is existent; and the right transportation rail for performing displaying is determined if the streaming media signal message including the first streaming media data ID is existent. The technicalproblem that the load of a roadside dispatching station achieves the bottleneck since the mutual communication of increasing rail transportation tool and the roadside dispatching station occupies a large amount of bandwidth of the roadside dispatching station can be solved, the multimedia information interaction is performed by sufficiently utilizing the communication bandwidth, the communicationfrequency of the rail transportation tool and the roadside dispatching station is reduced, and the bandwidth resource of the roadside dispatching station is saved.
Owner:常州高清信息技术有限公司

Instruction generation method and system based on wireless communication

The invention discloses an instruction generation method and system based on wireless communication, and belongs to the technical field of computer artificial intelligence. The method comprises the following steps: the local controller obtains electric energy data collected by the electric energy data sensor in a wireless communication mode and then sends the electric energy data to the cloud server; the cloud server matches and compares the electric energy data with a preset instruction generation condition, and generates a control instruction according to the electric energy data when the electric energy data is matched with the instruction generation condition, so that the cloud server sends the control instruction to the data receiving equipment through the local controller. Accordingto the instruction generation method and system based on wireless communication, the control instruction can be automatically generated to control other electronic equipment; the real-time performanceand convenience of electronic equipment control are greatly improved, the electric energy data and the control instruction are transferred through the local controller, broadband resources of the cloud server are greatly saved, and the transmission efficiency of the electric energy data and the control instruction is effectively improved.
Owner:SHEN ZHEN SHI XIN LU ZHI KE TECH LIMITED

Instrument data cloud edge collaborative acquisition and processing system and method based on image recognition

The invention provides an instrument data cloud edge collaborative acquisition and processing system and method based on image recognition, and the system comprises a camera which is used for obtaining the image data of an instrument and transmitting the image data to an edge server; the edge server is used for receiving the operation instruction of the cloud server, identifying the image data, obtaining an identification result and feeding back the identification result to the cloud server; and the cloud server is used for issuing an operation instruction to the edge server and receiving an identification result of the edge server. According to the invention, the instrument reading is identified by using the image, a transmitter does not need to be additionally arranged on the instrument, an existing camera on site is not reused or a network camera does not need to be independently installed, personnel on-site recording, automatic numerical value identification and summarization, alarm information generation and communication through an edge server and a remote platform are not needed, and the network security is ensured. When the camera goes wrong, the camera can be replaced quickly, and the production process is not affected.
Owner:HANGZHOU ANMAISHENG INTELLIGENT TECH CO LTD

Unmanned aerial vehicle omni-directional avoidance device based on artificial intelligence

The invention provides an unmanned aerial vehicle omni-directional avoidance device based on artificial intelligence. The device comprises a master controller and COFDM modulation. The two sides of the master controller are connected with the driver and the ultrasonic transmitter through wires and signal lines respectively. The ultrasonic transmitter is fixedly connected to one side of the rear fixing base through threads. A transmitting port is formed in the end part of the ultrasonic transmitter. The COFDM receives an image compression coding signal. The image compression code receives an image signal transmitted by the camera. Two ends of the COFDM modulator are respectively connected with the serial-parallel converter and the A / D converter. According to the device, in image and other information transmission, by encoding video information and performing multi-segment compression and hierarchical decoding, the video transmission efficiency can be improved, the image transmission stability during unmanned aerial vehicle detection can be improved, and the overall device, the image transmission rate, the definition after image transmission and the avoidance signal transmission efficiency are better than those of a traditional mode.
Owner:HARBIN UNIV OF SCI & TECH

Signal detection method and system, transmission device and receiving device

The invention provides a signal detection method which comprises the following steps: a transmitting device converts signals needed for transmission into a plurality of symbol subflows the number of which is the same with that of transmitting antennas; the symbol subflows are respectively modulated; modulated results are respectively coded differentially; space-time code matrixes are constructed by utilization of differential coding symbols and respectively transmitted in continuous moments through the transmitting antennas; a receiving device receives the space-time code matrixes which are transmitted by the transmitting device, and signals after filtration are obtained by filtering the space-time code matrixes; the signals after filtration are judged differentially, and symbols which are generated by modulation of the transmitting device are obtained; after demodulation of the symbols, the symbol subflows which are transmitted by the transmitting device are obtained and then converted into signals which are transmitted by the transmitting device. Channels are unnecessary to estimate through the signal detection method and a signal detection system which are provided by an embodiment of the invention, thereby broadband resources are effectively saved.
Owner:HUAWEI TECH CO LTD +1
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