208results about How to "Improve transmission reliability" patented technology

The invention relates to the technical field of data packet transmission, and discloses a data packet transmission control method and device for a low-power-consumption dual-mode Bluetooth chip, and the method comprises the steps: obtaining a signal strength parameter, a power consumption parameter, a transmission rate parameter and an environment parameter of the dual-mode Bluetooth chip, inputting the parameters into a deep time convolution network, and carrying out the time sequence feature extraction, obtaining a transmission mode switching judgment result; calculating transmission state evaluation data; the chip transmitting power is adjusted in a grading mode, standby power consumption is controlled through a nanoamp LDO circuit, and a dynamic power control parameter is obtained; performing compression coding on the data packet to obtain a dual-mode transmission protocol configuration parameter; executing time sequence sampling, and constructing a dual-mode state feature sequence; the data packet delivery success rate, the end-to-end transmission time delay and the total power consumption of the system are calculated, transmission control parameter optimization is carried out through double-layer deep reinforcement learning, target transmission control parameters are obtained, and the optimal balance of the transmission performance and the power consumption of the dual-mode Bluetooth chip is achieved.

The invention provides a data transmission optimization method and system based on a satellite channel congestion scene, and belongs to the technical field of satellite communication, and the method comprises the steps: classifying service data, and obtaining different types of data messages; reporting the cache state report to a satellite master station; receiving uplink communication resources distributed by the satellite master station, wherein the uplink communication resources are sent after being distributed by the satellite master station based on the cache state report; determining a channel transmission state of the satellite terminal station based on the uplink communication resources and the service volume in the transmitting cache region; scheduling and sending each type of data messages according to the transmission priorities of the different types of data messages; the transmission priority is determined based on a channel transmission state. According to the invention, in a satellite channel congestion scene, key messages are scheduled preferentially by dynamically adjusting the transmission priorities of different types of data messages, so that the communication efficiency and reliability are improved under limited resources.

The invention relates to the technical field of communication, in particular to a splitting and recombining method for improving transmission efficiency and reliability of a security protocol data unit, which is characterized in that a module adopting a random additive noise decoding algorithm is inserted between a security communication layer and a black channel on the basis of a framework of an IEC61784-3 standard, and is used for error correction processing of CRC (cyclic redundancy check) coding SPDU (security protocol data unit); a standard black channel security communication protocol architecture can be seamlessly connected, performance expansion and popularization in an industrial scene are facilitated, a splitting / recombination mechanism of a long SPDU is provided, splitting processing is performed on the long SPDU from a security communication layer, a plurality of short packet SPDUs are formed, guess decoding of a receiving end is facilitated, SPDU transmission reliability is improved, and retransmission probability is reduced. The short packet SPDU from the black channel is subjected to parallel guess decoding, the decoding complexity is remarkably reduced, the performance is remarkably improved compared with a traditional CRC error detection mechanism, and therefore the problem that an existing security protocol data unit is poor in transmission reliability is solved.

The invention relates to the technical field of cables, in particular to an airtight cold-resistant low-smoke flame-retardant instrument cable used in an explosive environment, which comprises a protective sleeve, a cable body mechanism is arranged in the protective sleeve, the cable body mechanism comprises inner sheaths, and a plurality of inner sheaths are uniformly mounted in the protective sleeve at equal intervals. According to the invention, heat dissipated in the use process of the cable can be utilized to preheat the main body structure of the cable, so that the cold resistance of the cable is improved while internal heat dissipation is promoted; according to the invention, the structure of the cable is improved, the connection stability among the structures of the cable can be improved, the air tightness of the cable is effectively improved, the throttling effect of the heat insulation shell and the guide ring can be fully utilized, the flame retardance of the cable is improved, the cable can be better matched with the external environment, and the application range of the cable can be effectively expanded while the working stability of the cable is improved.

The invention discloses an application layer flow control method based on image network transmission, and relates to the technical field of data transmission and management.The method comprises the steps that a camera SDK is used for creating an acquisition queue containing a buffer in a host application layer, and the host application layer can receive image data sent by a camera through the acquisition queue; the method comprises the following steps of: receiving a buffer, putting the corresponding buffer into a processing queue to inform a user to process, feeding back the condition of the buffer to a camera in real time by a host application layer through a communication link in the process, determining whether to continuously send an image or not by the camera according to a feedback result, and stopping image transmission in time when the buffer capability of a host is insufficient to avoid data loss; in the technical scheme of the invention, a host application layer can feed back the real-time information of the buffer in the acquisition queue to the camera through a link, and when the host does not have a buffer area, the transmission is suspended and the image is stored in the buffer of the camera, so that the flow control from a data source to the application layer is realized; the problem of transmission stability in network industrial camera application is effectively solved, and the network transmission reliability is improved.

The invention discloses a priority-based semantic communication optimization method, device and system, and the method comprises the steps: obtaining key semantic information through analyzing to-be-transmitted data, carrying out the calculation according to the information, obtaining an information priority, and merging a coding data packet; a first network resource allocation strategy is obtained through calculation according to the network state index and the collaborative optimization algorithm based on a network resource allocation algorithm, the allocation strategy is optimized according to the network state index and the collaborative optimization algorithm, and a data packet is obtained and transmitted according to a first collaborative optimization result. And meanwhile, collecting and adjusting a first collaborative optimization result based on a distribution algorithm according to a transmission performance index, and transmitting data according to an adjusted strategy. The integrity and transmission reliability of important semantic information in to-be-transmitted data during data transmission are ensured through information priority confirmation, and the data volume of data transmission is reduced by combining coded data packets; the resource allocation algorithm and the collaborative optimization algorithm improve the practicability of the resource allocation strategy, so that the strategy can effectively cope with the change of the network environment.

The invention discloses a distributed cross-network segment file transmission method. The method comprises the following steps of S1, deploying a file transmission service in a local area network; s2, carrying out transmission node registration among the local area networks through a file transmission service; s3, determining a transmission path according to whether a target node is contained in the local area network; s4, after a transmission path is obtained, encrypting the file fragments according to path information, and sending the encrypted file fragments to a next transmission node; s5, the receiving node decrypts the data packet according to the source node information and continues to transmit the data packet according to the routing information until the data packet arrives at the destination; s6, after receiving all the fragmented data, the receiver returns confirmation information of successful receiving to the sender; and S7, if the sender does not receive the receiving confirmation for a long time, re-sending the unconfirmed fragmented data packet. According to the invention, the file transmission efficiency and security are improved, and the reliability and stability of the system are enhanced.

The invention relates to the technical field of Internet of Vehicles, and provides a vehicle data transmission method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining vehicle data and N serialization processing types of the vehicle data, performing variable-length serialization processing on the vehicle data according to the N serialization processing types to obtain N pieces of compressed vehicle data, determining target data in the N pieces of compressed first vehicle data based on a data transmission strategy, and transmitting the target data to a server according to the determined target data. According to the method, the target data is encrypted, and finally the encrypted target data is sent to the TSP server according to the service quality level, so that the vehicle data can be compressed through serialization processing, and the compressed vehicle data of the target type can be selected for transmission, and the flexibility of data transmission is improved; and meanwhile, the transmission security and reliability are improved by utilizing encryption processing and a quality grade sending strategy, and the data transmission efficiency is improved.

The invention discloses a flexibly configured time delay Doppler domain OTFS index modulation method, system and program product. The system comprises a transmitting end and a receiving end, wherein the transmitting end comprises an IQ mapping module capable of dynamically configuring grid activation ratio and modulation order. At a transmitting end, binary sequences of in-phase components and quadrature components are mapped respectively, the in-phase components and the quadrature components of sub-blocks are constructed, and sub-block level dynamic grid activation ratio and modulation order configuration are obtained. At a receiving end, an improved message passing detection algorithm is adopted to obtain an activated time delay Doppler domain grid position and a modulation symbol. According to the invention, through dynamic subcarrier activation and modulation order configuration, changing channel conditions and transmission requirements can be adapted; an information bit sequence is reasonably mapped into sub-blocks of in-phase and orthogonal components, so that effective information transmission under different configurations is ensured, and meanwhile, relatively low mapping complexity is maintained; the detection complexity is reduced by an improved messaging detector while maintaining good BER performance.

The invention discloses an uplink and downlink combined wireless communication method and system based on channel semantic feature feedback. The method constructs an uplink and downlink closed-loop semantic communication architecture: a terminal side obtains a downlink channel matrix, generates a channel semantic feature vector through a channel semantic feature extraction network, inputs the channel semantic feature vector into a compression coding network to obtain a low-dimensional feedback code word, and sends the low-dimensional feedback code word to a base station side through an uplink limited feedback link; the base station side decodes and restores the low-dimensional feedback code word to obtain a reconstructed channel semantic feature vector, inputs the reconstructed channel semantic feature vector as prior information into a channel sensing sequence coding and modulation network, and generates a complex modulation signal under the condition of meeting the transmission power constraint; and the terminal side is combined with local channel information, and original data is recovered through a channel sensing demodulation network. Through joint optimization of the channel semantic feedback and the transceiver end-to-end transmission process, the channel state information feedback overhead is reduced under the constraint of limited feedback resources, and the transmission reliability and robustness in a complex channel environment are improved.

The invention discloses an intelligent construction hoist control system, which performs data analysis and feature fusion on signal strength, bit error rate and equipment state in a communication process by adopting a data processing technology based on deep learning so as to obtain communication constraint condition features fused with multi-modal information. And semantic guidance interaction is carried out on the communication constraint condition and the communication demand to fully understand potential association between the communication demand and the constraint, so that intelligent recommendation optimization of the SF value is realized, optimal configuration of communication parameters of the LoRa module is effectively realized, the anti-interference capability and transmission reliability of the signal are enhanced, and the communication performance of the LoRa module is improved. The communication requirements of different areas can be met, and therefore it is ensured that the elevator control system can keep efficient and stable communication under various conditions.

The invention discloses a radiation monitoring data compression and real-time transmission method and system, and relates to the technical field of data compression and transmission, and the method comprises the steps: collecting original radiation monitoring data, and carrying out the data preprocessing; carrying out lossless compression coding on the radiation monitoring data characteristics; the compressed data are divided into small segments, and the data are transmitted in a segmented mode; and after receiving the data, the receiving end decompresses the data according to the compression reverse operation. According to the invention, the transmission efficiency and reliability of radiation data under the condition of low bandwidth can be obviously improved. The compression algorithm can realize a data compression rate of at least 50% or more, and meanwhile, the integrity and precision of the data are kept. In addition, a real-time transmission mechanism ensures that data can be effectively transmitted under an extreme network condition, and the delay and packet loss rate of data transmission are remarkably reduced. The volume of radiation monitoring data can be significantly reduced without sacrificing the quality and integrity of the data.

The embodiment of the present application discloses a relay communication method and device, which relates to the field of communication technology, and solves the problem that the relay UE selected by the remote UE in the existing relay communication forwards data, resulting in the inability to meet the performance of the communication system. The method includes: a network device obtains a measurement report including the signal quality of the sidelink (SL) between a first user device and at least one second user device, and a wireless network identifier of at least one second user device, and the network device selects a target relay user device of the first user device from at least one second user device according to the measurement report and the auxiliary selection information associated with each second user device.

The invention provides an electric power communication network roundabout route reconstruction method and device based on digital twinning, and mainly relates to the technical field of communication. Specifically, the circuitous route reconstruction method for the electric power communication network comprises the following steps: carrying out twinborn mapping on the electric power communication network to construct a digital twinborn model of the electric power communication network; carrying out simulation tests of multiple fault states by using a digital twin model to obtain a fault state service loss degree and a fault state bandwidth occupancy rate; under the condition that the fault-state service loss degree is greater than a first threshold value or the fault-state bandwidth occupancy rate is greater than a second threshold value, performing routing strategy optimization based on a digital twin model by using a Markov decision method to obtain a routing optimization result; and performing routing reconstruction on the electric power communication network based on a routing optimization result to obtain a reconstructed electric power communication network.

The invention relates to a data transmission method and device based on a vehicle-mounted Ethernet protocol and a storage medium, and belongs to the technical field of intelligent automobile controller software development, and the method comprises the steps: receiving target data sent by a server through the vehicle-mounted Ethernet protocol; the protocol type of the vehicle-mounted Ethernet protocol is determined based on the length of the target data; performing frame loss detection and integrity verification on the target data based on the protocol type; determining an abnormal data frame under the condition of frame loss or integrity verification failure; and requesting the server to resend the abnormal data frame. According to the data transmission method based on the vehicle-mounted Ethernet protocol provided by the invention, the vehicle-mounted Ethernet protocol can adopt a single-packet transmission mechanism and a multi-packet transmission mechanism, transmission of different data volumes can be covered, IP layer fragmentation is avoided, so that transmission delay is reduced, a retransmission mechanism of lost frames is established when data frames are lost or inspection is not passed, and the transmission efficiency is improved. And the transmission reliability is improved.

The embodiment of the invention provides electronic equipment, a connecting structure and a cable. The electronic equipment comprises a first function module, a second function module and a connecting structure. The connecting structure comprises a cable, and a first connector and a second connector which are connected to two ends of the cable. The first connector is connected with the first function module, and the second connector is connected with the second function module. The cable comprises a fixing part, a plurality of cable cores and a low-loss part. The fixing part wraps the low-loss part and the plurality of cable cores. The plurality of cable cores comprise a signal cable core pair, the signal cable core pair comprises two signal cable cores which are arranged at intervals, the low-loss part is located between the two signal cable cores which are arranged at intervals in the signal cable core pair, and the dielectric constant of the low-loss part is smaller than that of the fixed part. According to the embodiment of the invention, the integrated arrangement of a plurality of cable cores can be realized, and the loss of signals during transmission on the cable can be reduced.

This application provides a cross-application service scheduling and execution method and system in a vehicle environment, relating to the field of intelligent vehicle system technology. It acquires known service-related data of the vehicle system, as well as environmental perception data and user voice information of the vehicle environment; parses the user voice information to obtain target demand information, intent association information, and voice feature information; forms scene adaptation parameters based on environmental perception data; generates multiple second instruction transmission signals based on target demand information; detects each target demand information based on service-related data, intent association information, voice feature information, and scene adaptation parameters, obtains detection results, and combines these with the second instruction transmission signals to schedule and execute multiple cross-application services in the vehicle environment, generating service scheduling and execution results. This achieves dynamic coordination and orderly scheduling of cross-application services, improving the response accuracy and execution security of the vehicle system in complex driving scenarios.

The invention discloses a segmented transmission method based on verification message delay feedback, which belongs to the technical field of data transmission, and comprises the following steps: setting message segmentation bytes, splitting a data packet to be transmitted into message segments, configuring verification sub-messages for the message segments, and encrypting the verification sub-messages; sending the encrypted verification sub-message, synchronously starting a timer, transmitting the verification sub-message in batches in combination with batch limitation, and performing link detection to judge whether the verification transmission is overtime or not; if the verification transmission is not overtime, obtaining effective transmission delay, otherwise, performing verification retransmission based on a backoff retransmission interval; calculating an optimal sending time interval by using a particle swarm algorithm, and setting an interval updating trigger mechanism; sending the encrypted message segments in sequence based on the optimal sending time interval, judging whether the message transmission is overtime or not in combination with the state of a timer, and performing overtime supplementary transmission; after the to-be-transmitted data packet is sent, decryption is carried out, meanwhile, the session key state is monitored, and life cycle management is carried out.

Disclosed are a downlink channel transmission method, apparatus and device, and a readable storage medium, belonging to the technical field of communications, the method comprising: a terminal determining, according to first information, at least one of whether to enable a target transmission function, the number of target resource sets, and the number of target resource sets; the number of candidate transmission positions or monitoring positions of the target resource set, the number of repeated transmission times of the target downlink channel, and the resource position of the target resource set; the terminal receives a target downlink channel in at least one target resource set; wherein the target downlink channel repeatedly transmits or bears the same content on one or more target resource sets.

The present invention provides a switch disordered fragment message forwarding and following method and system, the method comprising: the switch filters out IP fragment messages, and after adding a custom message header to the IP fragment message, forwards it to a network processor; the IP fragment message comprises a first fragment, a middle fragment and a tail fragment; the network processor uses the source IP address, the destination IP address and the identification ID of the IP fragment message as the reorganization index, and performs virtual reorganization on the cached disordered IP fragment message; the network processor replaces the routing hash value of the custom message header carried by each IP fragment message with the hash value of the first fragment for the IP fragment message that has completed the virtual reorganization, and then sends it to the switch; the switch forwards the message according to the custom message header of the IP fragment message. The present invention effectively improves the network transmission efficiency and reliability, and is particularly suitable for a complex network environment that processes a large number of disordered fragment messages.

The embodiments of the present disclosure relate to a PUSCH configuration method, device, communication equipment and storage medium. The method comprises: for single frequency network (SFN) transmission of a physical uplink shared channel (PUSCH), different antenna panels of a terminal are configured with different transmission configuration indicators (TCIs); the TCIs are associated with beam information, and different TCIs are simultaneously associated with the same transmission resource, wherein the transmission resource comprises a time domain resource and a frequency domain resource, and multiple different antenna panels perform SFN transmission of the PUSCH by using spatial division multiplexing (SDM).

This invention discloses a power distribution IoT communication and equipment management system based on dynamic optimization algorithms. It adopts a four-layer architecture: a perception layer, an edge layer, a platform layer, and an application layer. The end devices in the perception layer are used to collect power distribution data and execute control commands. The edge devices in the edge layer, and their managed sub-devices, are used for protocol conversion, data preprocessing, and executing dynamic optimization algorithms. The platform layer is used for message parsing, algorithm optimization, device management, and data storage. The application layer provides a visual user interface. Through dynamic optimization algorithms and a full lifecycle device management scheme, the system significantly improves the reliability of power distribution IoT data transmission, optimizes network resource utilization, enhances equipment operating efficiency, ensures the real-time performance of critical services, and features strong compatibility, security, and concurrent processing capabilities.

According to the signal processing method, the transmission method, the electronic equipment and the angle detection device provided by the invention, the rotation angle data is generated and processed in the installation process of the borehole stressmeter, so that the rotation angle of the borehole stressmeter can be accurately monitored in real time, and the rotation angle is converted into the signal adaptive to the sectional dimension of the connecting device for transmission. By modulating the frequency band of the signal, the problem of signal attenuation in a deep hole environment can be effectively solved, the signal can still be stably transmitted in a complex environment, and the data precision and the transmission reliability in the installation process of the borehole stressometer are improved, so that the geological disaster prediction and prevention efficiency is improved.

The invention discloses an intelligent construction site video monitoring system based on a P2P architecture, and relates to the video monitoring technology, and the system comprises a monitoring equipment end which comprises a plurality of monitoring equipment groups and is used for collecting video data; the distributed NVR cluster comprises a plurality of NVRs, and each NVR corresponds to one monitoring equipment group and is used for receiving and storing the video data sent by the monitoring equipment of the monitoring equipment group; the NVR is in communication connection with the video client; the lightweight index server establishes communication connection with the NVR and the video client at the same time and is used for dynamically distributing node loads through a load balancing algorithm; and a plurality of video clients, a P2P network is established among the plurality of video clients, and the plurality of video clients are used for obtaining video data from the NVR or the video clients except the video clients according to the dynamically distributed nodes in the lightweight index server and playing the video data. The invention further discloses a monitoring method. According to the invention, the bottleneck problem of a centralized architecture in the prior art is solved, the single-point fault risk is eliminated, and the system expansibility is improved.

The invention relates to the technical field of data transmission, and discloses a one-way data transmission device and method.The device comprises M levels of one-way service data sending channels and N levels of one-way control instruction sending channels, and the M levels of one-way service data sending channels are used for achieving one-way transmission of service data; the N-level one-way control instruction sending channel is used for realizing one-way transmission of a control instruction, and the M-level one-way service data sending channel and the N-level one-way control instruction sending channel can transmit the control instruction; wherein M is an integer greater than or equal to 2, and N is an integer greater than or equal to 2. The problems of low safety and the like in the prior art are solved.

The invention provides a power distribution network resource scheduling method and system based on computing power network integration, and belongs to the technical field of data processing and resource scheduling, and the method comprises the steps: obtaining a plurality of communication signals and a plurality of corresponding service requests, and packaging the communication signals and the service requests into a plurality of standardized data; corresponding response tasks are generated according to the service requests, and task resource requirements of the response tasks are determined; performing resource scheduling on each response task according to each task resource demand and a preset resource scheduling model, and determining resource configuration of each response task; according to each resource configuration, scheduling and allocating a plurality of virtual resources to each response task from a preset resource pool; and according to each response task and a plurality of corresponding virtual resource units, carrying out data processing on each piece of standardized data, so that by implementing the method and the device, the problems of relatively low utilization rate of power distribution network resources and inflexible scheduling in the prior art can be solved.

Disclosed in the present application are a resource determination method and apparatus, which are used, when transmission failure recovery (BFR) occurs, for selecting a more appropriate scheduling request (SR) resource for a physical resource in which transmission failure occurs, thereby improving the transmission reliability of an LRR, and shortening a time delay of the BFR. Provided in the present application is a resource determination method, comprising: determining a physical resource in which transmission failure occurs; and according to an association relationship between a relevant parameter of a scheduling request (SR) resource that is configured or predefined by a network side and a relevant parameter of the physical resource, determining an SR resource for the physical resource in which transmission failure occurs.

The invention discloses a wave recording file transmission method, a power distribution automation system, equipment and a medium, and relates to the technical field of power distribution systems. The wave recording file transmission method is applied to the power distribution automation system, and the power distribution automation system comprises a power distribution terminal and a power distribution master station. The method comprises the steps that a power distribution terminal generates a to-be-transmitted first wave recording sub-file and a to-be-transmitted second wave recording sub-file, and the first wave recording sub-file and the second wave recording sub-file are compressed to obtain a wave recording file compressed package; the power distribution terminal transmits the recording file package to the power distribution master station; and the power distribution master station receives the wave recording file compressed package, and decompresses the wave recording file compressed package to obtain a first wave recording sub-file and a second wave recording sub-file. According to the method, the two wave recording files can be compressed into the wave recording file compression package for transmission, so that the transmission efficiency and the transmission reliability of the wave recording files in the power distribution automation system are improved while the transmission process of the wave recording files is simplified.

The invention relates to the cross technical field of wireless communication and intelligent agriculture, in particular to a NOMA-SIC uplink weighting and rate maximization method based on an unmanned aerial vehicle (RIS), and the method comprises the steps: constructing an uplink system composed of a fusion center, an unmanned aerial vehicle reconfigurable intelligent surface and a sensor node, and enabling the fusion center to employ a continuous interference elimination technology, and realizing multi-user concurrent transmission based on power domain multiplexing of non-orthogonal multiple access. According to the method, fractional programming, quadratic transformation and successive convex approximation technologies are jointly used, phase configuration of the RIS and sensor transmitting power are alternately optimized, beam forming vectors are received by a fusion center, and under the condition that the power, phase and service quality constraint conditions are met, the system weighting sum rate is maximized. The advantages of NOMA spectrum multiplexing and SIC interference elimination are brought into full play, the transmission reliability and the spectrum efficiency are remarkably improved, and the method is suitable for low-delay and high-reliability acquisition of intelligent agricultural large-scale sensor data and can be expanded to the scenes of industrial Internet of Things, emergency communication and the like.

The invention discloses a wireless keyboard anti-interference method and device based on a Polar code, and the method comprises the steps: receiving key input information of a user, and converting the key input information into a data bit sequence; performing forward error correction on the data bit sequence based on a simplified Polar code, and performing short packet interleaving on the data after error correction; based on a preset frequency, performing frequency hopping on the data after short packet interleaving; sending the data after frequency hopping to an opposite terminal; the opposite end performs bit error rate detection on the received data, and adjusts the frequency hopping frequency or the interleaving depth according to the bit error rate until the bit error rate reaches a threshold value; and performing de-interleaving and Polar decoding on the received data passing the bit error rate detection to obtain user key input information. The anti-interference capability and the reliability of the wireless keyboard are improved through the combination of the Polar code, the short packet interleaving and the self-adaptive frequency hopping technology.