453 results about "Transmission bandwidth" patented technology

The invention specifically relates to the technical field of edge computing, and discloses a multi-platform concurrent transmission edge computing data acquisition method, which comprises the following steps: S1, concurrent access of multi-platform equipment: establishing a mapping relationship between equipment identity and a communication link; s2, data concurrent collection and preprocessing: obtaining a preprocessed data stream; s3, concurrent transmission priority scheduling: allocating a transmission bandwidth for each data stream; s4, edge node parallel computing: distributing the subtasks to a plurality of computing nodes; s5, cloud collaboration and global optimization: generating a global optimization strategy; s6, carrying out full-link monitoring and dynamic regulation and control; concurrent access of heterogeneous equipment is realized by generating data streams in a uniform format, multi-platform compatibility is effectively enhanced, bandwidth is dynamically allocated to the data streams according to priority weight indexes by calculating the priority weight indexes of the data streams, data transmission efficiency is improved, and the data transmission efficiency is improved by allocating sub-tasks to a plurality of computing nodes. And the resource utilization rate of the edge computing gateway is improved.

The invention relates to an intelligent water affair remote monitoring and control system based on the Internet of Things, in particular to the field of intelligent water affair remote monitoring and control, and the system comprises the steps: firstly, pre-training a long and short-term memory network model through a cloud, and generating a lightweight edge prediction model to reduce calculation and transmission loads; the data transmission module effectively reduces the occupation of transmission bandwidth based on a dynamic quantization threshold value of a residual error and a differential coding technology, meanwhile, the high precision of the data is kept, the verification feedback module monitors the accuracy of the transmission data in real time through confidence coefficient detection, and triggers model re-calibration when the confidence coefficient is reduced, so that the long-term stability of the system is ensured, and the reliability of the system is improved. The sampling optimization module dynamically adjusts the sampling frequency according to the confidence coefficient and the residual fluctuation characteristics, balance is achieved between bandwidth occupation and reconstruction precision by using the Lyapunov optimization theory, the real-time performance and accuracy of water affair monitoring are improved, and meanwhile bandwidth consumption and energy consumption are effectively reduced.

The invention discloses an electric power data acquisition method and equipment based on a logarithmic amplifier and a medium, and relates to the technical field of electric power monitoring signal processing, and the method comprises the steps: collecting an original analog current signal on an electric power circuit and an analog temperature signal of an environment where the logarithmic amplifier is located, and generating a mixed observation vector; based on the mixed observation vector, calculating an estimated value of a temperature characteristic correction parameter in real time through a pre-stored temperature-parameter mapping relation, and performing logarithmic compression on the original current digital signal sequence by using the estimated value of the temperature characteristic correction parameter to obtain a compressed voltage signal subjected to temperature compensation; and performing high-speed analog-to-digital conversion on the compressed voltage signal subjected to temperature compensation to obtain a discrete digital signal sequence, and storing the discrete digital signal sequence into a priority cache region. According to the invention, the data volume is effectively compressed by using the correlation between the signals, and the transmission bandwidth and the storage demand are reduced.

The invention discloses a multifunctional broadband metamaterial structure with a polarization independent characteristic and a control method. The structure has a switchable tri-state function and a complete polarization operation capability irrelevant to polarization. By introducing the guide circuit design, three different electromagnetic energy regulation and control modes of second-order filtering, broadband absorption and multi-reflection shielding are efficiently integrated in the same structure, the real broadband performance in the band is realized, and meanwhile, the higher reflection efficiency outside the band is kept. Different from a traditional method which depends on a broadband lossless reflecting layer to expand the transmission bandwidth of an absorption structure, the three arrays are considered as an integral operating system, support three-state switching operation and have real broadband and efficient behaviors.

The embodiment of the invention provides a congestion control method and device, an RDMA network card and electronic equipment, and is applied to the RDMA network card of a sending end, and the method comprises the steps: responding to the received WQE, and based on the current sending rate, sending a data packet to a receiving end through an RDMA communication link; transmission performance characterization information of the RDMA communication link in a time window is determined, the transmission performance characterization information comprises the minimum round-trip time and the maximum transmission bandwidth, and the time window is set based on the determined last minimum round-trip time; updating the current sending rate based on the transmission performance characterization information; and sending the data packet to the receiving end through the RDMA communication link based on the updated current sending rate. By applying the scheme provided by the embodiment of the invention, the packet loss rate during data transmission between equipment based on the RDMA technology can be reduced.

The invention provides a solid state disk energy consumption optimization method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the throttling operation of the transmission bandwidth of a PCIe link if the first data transmission rate of the PCIe link does not meet the transmission rate requirement; performing layering operation on the cache space of the solid state disk based on the link transmission state of the throttled PCIe link to obtain a layered cache structure; determining a migratable task in each cache layer based on a data storage condition of each cache layer in the layered cache structure and a task execution condition of the solid state disk, and migrating the migratable task of each cache layer to a target cache region to obtain a cache layout after task migration; and if the second data transmission rate of the PCIe link after throttling meets the transmission rate requirement, adjusting the working mode of each component in the solid state disk based on the second data transmission rate and the cache layout. The energy consumption of the solid state disk is optimized, the read-write performance is improved, and the service life is prolonged.

The invention relates to the technical field of earthquake and acoustic exploration, and discloses a signal acquisition and transmission method, device, equipment and medium based on a main control unit, and the method comprises the steps: generating a sampling clock signal and a time counting signal, driving an analog-to-digital conversion unit to obtain a digital acquisition signal, and reading equipment state parameters; after the timestamp is added, the digital signal is stored in the first cache unit, the state data after the timestamp is added is stored in the second cache unit, the data signal cache unit is written into a first FLASH partition after being full, and the state data cache unit is written into a second FLASH partition after being full. And after data is read from the FLASH, differential signals are output through the multi-wire parallel interface, the logic processing unit and the serialization unit. According to the invention, power consumption is reduced through unified power management and optimization of clock control and a dormancy mechanism, and transmission bandwidth is improved in combination with high-speed differential output, so that both low power consumption and high efficiency are realized.

The invention relates to the technical field of distributed control, and particularly discloses a distributed LED screen cooperative control system based on a wireless synchronization protocol, and the system comprises a division module which obtains the transmission bandwidth and the mean value of each LED display screen, records the LED display screen with the maximum mean value as a main screen, and records the rest as sub-screens; the detection module is used for sending a synchronizing signal, recording the moment when the synchronizing signal is received, sending a timestamp to the sub-screen, converting the direction and resending; and the adjusting module is used for generating limit value conditions, calculating network delay and clock skew, adjusting clocks of the sub-screens based on the clock skew, screening out fluctuating sub-screens, calculating a delay predicted value based on the network delay, sending frame data in advance, obtaining a picture difference between the main screen and the fluctuating sub-screens, and adjusting the delay predicted value. Through the clock signal synchronization and advanced transmission method, the problem of high delay in high-dynamic display content is solved, and the delay is reduced.

The invention relates to the technical field of electrical variable measurement, in particular to a self-adaptive power quality monitoring method for a power cabinet, which comprises the following steps of: starting a low-frequency acquisition unit arranged at a monitoring node of the power cabinet, and acquiring a low-frequency coarse scanning voltage signal of the power cabinet in a current monitoring period at a preset low-frequency sampling rate; according to the method, compressed observation vectors are transmitted, sparse basis inversion calculation is executed by using an orthogonal matching pursuit algorithm, high-precision power quality time domain waveform data are reconstructed, rich high-frequency transient details are restored under the condition of low-data-volume transmission, distortion feature analysis is carried out based on reconstructed waveforms, disturbance types are identified, and a monitoring analysis report is generated and uploaded. The real-time dynamic adjustment of the sampling scale and the matrix structure along with the signal fluctuation state is realized, the optimal balance of the data compression ratio and the signal reconstruction quality is achieved, the contradiction between the storage and transmission bandwidth limitation of massive high-frequency data in a complex power grid environment is solved, and the sensitivity for transient abnormality is improved.

An audio data transmission method and apparatus for a wireless earphone, and a storage medium and a terminal are provided. A play mode adopted by the wireless earphone includes a first play mode and a second play mode, and the method includes: determining whether the first play mode currently adopted by the wireless earphone satisfies a transmission bandwidth required by to-be-played audio data at least based on parameter information of the to-be-played audio data; and based on the first play mode not satisfying the transmission bandwidth required by the to-be-played audio data, transmitting the to-be-played audio data through a connection channel corresponding to the second play mode.

The invention discloses a method for improving data transmission bandwidth through an FPGA. The method comprises the steps that a data packaging module of a detector main control board sends data to be transmitted to a multi-channel GTP sending end in parallel; the data acquisition card receives the data of the corresponding channels through the multi-channel GTP receiving end and recovers Data and KCOD of each channel; an FIFO read-write control module of the data acquisition card writes data recovered by multiple channels into asynchronous FIFOs corresponding to the channels through write logic, and data buffering is carried out; the FIFO read-write control module simultaneously reads cache data of a plurality of asynchronous FIFOs through read control logic to realize cross-clock domain synchronization of multi-channel data; performing CRC (cyclic redundancy check) and processing on the read multi-channel data to obtain synchronous effective transmission data; and a single-channel GTP is upgraded to a dual-channel GTP or a multi-channel GTP, so that the data transmission bandwidth is improved, and normal operation of the FPGA chip is ensured.

Embodiments of the present application provide a communication method and a communication apparatus, which can send a first signal on the basis of first information. The method comprises: an AIoT device sends a first signal on the basis of first information, the first information comprising one or more of the following: a first sequence configuration corresponding to the first signal; a configuration used for estimation of a non-ideal factor; a guard band configuration of the first signal; a transmit power configuration of the first signal; or a configuration of a sub-channel of the first signal. The sub-channel is configured on the basis of a system bandwidth or a transmission bandwidth or an occupied bandwidth of an AIoT system, or the sub-channel can also be configured on the basis of a transmission bandwidth or an occupied bandwidth of the first signal, and the sub-channel is used by the AIoT device to send the first signal. The first signal is applied to the AIoT system.

The invention relates to the technical field of digital asset management analysis, in particular to a digital asset intelligent analysis platform based on a block chain intelligent contract technology. The computing power resource state coupling module is used for obtaining the saturation degree of computing resources by capturing information of a task control block and combining the load rate of a processor, and embedding and collecting mapping data streams to generate a management and control data packet; the abnormal data screening module is used for executing local serial processing when the saturation degree of the computing resources is lower than an I / O throughput threshold value, and otherwise, hardware acceleration is carried out, and a to-be-verified digital sequence is constructed; generating an abrupt change collection feature vector based on the to-be-verified digital sequence; and the component resume anchoring module is used for carrying out data binding operation on the abrupt change collection feature vector, generating a single-piece digital traceability certificate, carrying out aggregation compression, obtaining a batch verification root value and outputting a quality signal digital right. According to the method, a load awareness and distributed storage partitioning strategy is constructed through indexes, and the I / O frequency and transmission bandwidth occupation of whole library retrieval are reduced.

The invention relates to the technical field of weak network confrontation, and discloses a weak network confrontation environment self-adaption method and system for a cloud terminal. The method comprises the following steps: a cloud server determines output ports of data packets in video streams, calculates a bandwidth and a transmission frame rate required for transmission of each video stream every preset time period, judges whether each output port is subjected to network congestion, and if yes, sends the video streams to the cloud server; the control unit is used for adjusting the output frame number and the output speed of each video stream in the target port based on the adjustment factor, dividing video frames in each video stream into a first type of frames and a second type of frames, setting an abandoning rate by the control unit to discard the second type of frames, and sending the video frames to the cloud terminal; after the cloud terminal receives the video frame, the delay value of the network and the performance value of the video frame in the current receiving period are calculated and sent to the control unit, the control unit adjusts the abandoning rate in real time based on the delay value and the performance value, and the transmission efficiency and stability of the video stream in the weak network environment are improved.

The invention provides a large model KV precision lossless compression method and system, and relates to the field of data processing, and the method comprises the steps: obtaining key value cache data generated in a large language model reasoning process; performing high-dimensional feature extraction and similarity analysis on the key value cache data to generate a corresponding hash signature; based on the Hash signature, performing physical reordering on the key value cache data, so that the key value cache data with similar characteristics are adjacently arranged in a physical storage space; transmitting the reordered key value cache data to an intelligent network card through a high-speed interconnection interface; and calling an integrated hardware lossless compression module through the intelligent network card, and performing streaming compression on the reordered key value cache data. According to the technical scheme, the hardware unloading and assembly line technology is utilized, transmission bandwidth occupation and system overall delay are remarkably reduced, and key technical support is provided for efficient reasoning of a large model in a resource-limited edge environment.

The invention provides an electroencephalogram data transmission method combining lossless and lossy compression, belongs to the field of electroencephalogram data transmission and compression processing, and is used for solving the problems of low transmission efficiency of pure lossless compression and easy loss of key diagnosis information of pure lossy compression in related technologies. According to the method, multi-dimensional features of electroencephalogram data are extracted, a key area and a non-key area are divided, lossless compression and lossy compression processing are adopted respectively, the area division proportion is dynamically adjusted in combination with transmission bandwidth, signal features and application scenes, and corresponding data are transmitted through dual protocols. The transmission efficiency can be improved while the clinical diagnosis marker and the core characteristics are reserved, and the scene adaptability and the transmission reliability are achieved at the same time.

A transmission bandwidth allocation method includes: receiving, by a transmission device, requirement information from a reception device via a specific interface; transmitting, by the transmission device, attribute information corresponding to the requirement information to the reception device via the specific interface; and dynamically allocating, by the transmission device, a transmission bandwidth according to the attribute information for transmitting multiple data to the reception device.

The invention discloses a data transmission optimization method, system and device based on optical fiber communication and a medium, and relates to the technical field of data processing, and the method comprises the steps: obtaining an optical fiber communication line and a monitoring time slot, and obtaining the number n for monitoring according to the optical fiber communication line; acquiring unit time slot average flows of the first one, two,..., n monitoring time slots at the current time point in real time, acquiring a time sequence weight corresponding to each unit time slot average flow based on a time sequence model, and acquiring a fluctuation index based on a fluctuation model, the n unit time slot average flows and the time sequence weight corresponding to each unit time slot average flow; judging whether the fluctuation index exceeds a preset fluctuation threshold value, if so, obtaining a bandwidth adjustment increment of the optical fiber communication line according to the fluctuation index, and obtaining an adjustment cost index according to the bandwidth adjustment increment; and completing bandwidth optimization according to the adjustment cost index and the bandwidth adjustment increment. The method has the advantages of fast dynamic response, accurate transmission bandwidth matching and collaborative optimization.

According to various embodiments of the present disclosure, a method performed by a first device includes the steps of: transmitting information of a first system bandwidth including a plurality of first occupied bandwidths or a plurality of first transmission bandwidths to a plurality of second devices; and transmitting a signal to the plurality of second devices on the basis of the first system bandwidth, wherein, on the basis of the first system bandwidth being related to inter-channel frequency hopping (FH), the system bandwidth is configured to be smaller than or equal to a first reception (Rx) bandwidth related to the plurality of second devices.

The invention discloses a dynamic bandwidth allocation method and device used in an FTTR or OLT scene, and the method comprises the steps: receiving a bandwidth configuration parameter issued by a CPU, and receiving a bandwidth state parameter from an uplink PON MAC module in parallel; determining the bandwidth demand estimation value of each AllocID in the sub-allocation period, and initializing the residual available bandwidth in the sub-allocation period; and in the sub-allocation period, on the basis of the bandwidth demand estimation value of each AllocID, bandwidth allocation of all AllocIDs of each PON port and construction and issuing of BWMAP bandwidth authorization are completed in sequence according to the following mode: when it is determined that the current remaining available bandwidth is enough, bandwidth allocation is performed on the AllocID of the current PON port, BWMAP bandwidth authorization is constructed and issued, and the current remaining available bandwidth is updated. Therefore, the problem that an existing uplink time slot transmission bandwidth allocation mode cannot meet low-cost, low-delay and high-reliability user requirements is solved.

The embodiment of the invention provides a data transmission method, a cloud server, a storage medium and a computer program product, and the method comprises the steps that a cloud host deployed in the cloud server obtains data transmission quality parameters in a first transmission period, and the data transmission quality parameters comprise retransmission times and / or transmission delay; judging whether a first transmission protocol is selected as a target transmission protocol or not according to the data transmission quality parameter; if it is judged that the first transmission protocol is not selected as the target transmission protocol, obtaining at least one piece of information of a transmission distance, a transmission bandwidth, whether a transmission link contains a first gateway and whether a congestion control mechanism supports modification; according to at least one type of information of a transmission distance, a transmission bandwidth, whether a transmission link comprises a first gateway and whether a congestion control mechanism supports modification, selecting a transmission protocol from a second transmission protocol and a third transmission protocol as a target transmission protocol, the target transmission protocol is used for performing data transmission in a transmission period after the first transmission period.

The invention relates to an unmanned aerial vehicle channel perception adaptive image transmission device and method. The method comprises the following steps: detecting current transmission channel parameters in real time, wherein the channel parameters comprise but are not limited to received signal strength, a signal-to-noise ratio and a packet error rate; the method comprises the following steps of: obtaining real-time image data by using a camera, performing de-noising processing on the image data, and outputting the de-noising processing; detecting and analyzing whether an obvious abnormal image appears in the image data, combining with the current transmission channel parameter, adaptively and dynamically adjusting a coding parameter to carry out coding control and frame rate control, the abnormal image including a blurred screen or / and mosaic in the image; according to the method, the channel state can be sensed in real time, the transmission code rate and the frame rate can be automatically adjusted according to the complex environment and the changing scene so as to meet the image transmission requirements of different environments, the overall energy consumption can be reduced by automatically adapting the transmission bandwidth, and the transmission efficiency can be improved. And low-delay transmission can be better realized.

The invention discloses a data transmission device, which comprises an on-chip network interface module used for receiving messages sent by a first core grain in real time by taking data sub-packets as units and classifying each data sub-packet into a virtual channel matched with the on-chip network interface module according to the message type in each period, the on-chip network interface module internally comprises a plurality of parallel virtual channels; the interconnection control main body module is used for arbitrating and obtaining a target virtual channel in a plurality of virtual channels of the on-chip network interface module in each period, obtaining a data sub-packet from the target virtual channel, packaging a message frame, and sending the packaged message frame to the physical transmission layer module; and the physical transmission layer module is used for sending a message frame received in real time to the second core grain, and the device reduces the transmission delay of a complete message as much as possible on the premise of ensuring the correctness of data transmission between the core grains, and meanwhile, ensures the transmission efficiency and improves the transmission bandwidth.

Proposed are a method and device for receiving an A-PPDU in a wireless LAN system. Specifically, a reception STA receives an A-PPDU from a transmission STA and decodes the A-PPDU. The A-PPDU includes a first PPDU for a primary 160 MHz channel and a second PPDU for a secondary 160 MHz channel. A first signal field includes information about a bandwidth in which the first PPDU is transmitted. The information about the bandwidth in which the first PPDU is transmitted includes information about a first preamble puncturing pattern punctured in a unit of a 20 MHz channel in the primary 160 MHz channel. A second signal field includes information about a second preamble puncturing pattern.

The invention relates to the technical field of industrial automation control, in particular to a data acquisition method and system based on a digital metering technology, and the method sequentially comprises the following steps: 1, carrying out the dynamic calibration of a sensor; 2, constructing a phase compensation clock tree; 3, establishing a temperature-humidity-vibration three-factor coupled error compensation model, determining the interaction weight of each factor through an orthogonal test method, and updating a compensation coefficient on line by adopting a recursive least square method with a forgetting factor; and step 4, generating a transmission priority according to the product of the data change rate and the health degree index, dynamically allocating a transmission bandwidth based on a network quality evaluation value calculated based on the time delay change rate and the packet loss rate, and performing compressed coding of a lead code mark on high-priority data. The method not only improves the precision of the system, but also optimizes the data processing and transmission efficiency, and provides an effective solution for high-precision data acquisition in a large-scale and complex environment.

The invention provides a dual-mode while-drilling azimuth resistivity measurement method and device and related equipment, and relates to the technical field of charging management. According to the technical scheme provided by the invention, the gradient mutation event in the resistivity curve is identified through the gradient feature, and the key geological interface and the abnormal region are accurately positioned. The data transmission mode is determined by collecting the drilling working condition parameters corresponding to the gradient sudden change event, so that the transmission strategy is matched with the actual drilling state. And the transmission priority score of each data is calculated based on the drilling working condition parameters, the gradient sudden change event and the resistivity curve, so that quantitative evaluation of data importance and timeliness is realized. And comparing the transmission priority score with a preset percentage threshold, and then distinguishing first data and second data to ensure that important data is preferentially transmitted and secondary data is delayed to be stored. The first data are transmitted after being adaptively coded, and the second data are stored in a layered manner, so that the requirements of real-time performance and integrity are considered under the limited transmission bandwidth.

The invention discloses a data preprocessing method and system for edge computing, and relates to the technical field of edge device data processing, and the method comprises the steps: determining the device state of an edge device and the data value of to-be-transmitted data, and outputting a processing capability score based on the device state and the data value through employing a pre-constructed capability perception model; outputting a processing strategy parameter through a pre-constructed strategy relation table according to the processing capability score, and associating the processing strategy parameter with the to-be-transmitted data to form a to-be-transmitted data packet; and setting an activity execution channel based on the edge device to transmit the to-be-transmitted data packet, and performing preprocessing control by using the processing parameter packet through the activity execution channel in the transmission process. According to the method, the occupation of redundant strategy parameters on transmission bandwidth and storage resources can be reduced, the data preprocessing efficiency and the resource utilization rate of edge equipment are remarkably improved, the local processing advantages of edge computing are fully played, and the requirements of accurate data processing and efficient resource utilization in an edge computing scene are better met.

A communication method and apparatus relate to the field of communication technologies, to enable a network device to support communication of a new type of terminal device without additionally sending a set of complete system information. The method includes: The network device sends a SIB1 and supplementary information. Maximum transmission bandwidth of a first terminal device is different from that of a second terminal device. The supplementary information includes first information and / or second information, the SIB1 does not include the first information, and a parameter value of the second information included in the supplementary information is different from a parameter value of the second information included in the SIB1. After receiving the SIB1 and the supplementary information, the second terminal device accesses a network based on partial information other than the second information in the SIB1 and the supplementary information. Consumed resources for downlink transmission can be reduced.

A resource unit indication method and apparatus, and a storage medium, where the method includes: an access point (AP) sending a physical protocol data unit (PPDU) to a plurality of stations (STAs), where a transmission bandwidth of the PPDU is divided into M subblocks, M is an integer greater than 1, the transmission bandwidth is greater than or equal to 80 megahertz (MHz), the PPDU includes M first fields, the M first fields are in a one-to-one correspondence with the M subblocks, the first field is transmitted on a corresponding subblock, and the first field is used to indicate a resource unit (RU) allocated by the AP to at least one of the plurality of STAs.

Apparatuses and methods for power reduction in wireless communication systems. A method for operating a user equipment (UE) includes receiving first information related to a first uplink (UL) carrier and a second UL carrier, receiving second information associated with a maximum power reduction (MPR) mitigation mode, and determining, based on the first and second information, first and second UE maximum output powers for an UL transmission bandwidth according to first and second MPR values. The first and second MPR values are associated with first and second transmissions on the first and second UL carriers. The method further includes determining first and second UL transmit powers based on the first and second UE maximum output powers, respectively, and transmitting an UL signal or channel on the first UL carrier based on the first UL transmit power on the second UL carrier based on the second UL transmit power.