368 results about "Data transmission systems" patented technology

The invention provides a low-altitude networking of intelligence multipath data transmission system based on MPQUIC, and belongs to the technical field of novel network protocols, and the system comprises a network state analysis module which is used for obtaining the network state indexes of all communication paths of an unmanned aerial vehicle under different position coordinates; the flow scheduling module is used for predicting the track of the unmanned aerial vehicle, scoring the communication paths by combining the network state indexes of the communication paths, and obtaining the communication paths corresponding to the data flows with different priorities of the unmanned aerial vehicle according to the priorities of the data flows with the scores of the communication paths; and the path selection optimization module is used for dynamically adjusting weight parameters in communication path scores based on deep reinforcement learning by taking network throughput maximization and time delay minimization as targets to obtain optimal communication paths corresponding to data streams with different priorities. According to the invention, the problem that the prior art is difficult to have high reliability and low time delay due to the dynamic change of the network environment caused by the position change of the unmanned aerial vehicle in the low-altitude Internet of Things is solved.

The invention relates to the technical field of satellite communication data transmission, and discloses a satellite communication data transmission system of Internet of Things equipment. The environmental parameter acquisition module of the system is responsible for comprehensively acquiring various environmental parameters of the Internet of Things equipment in satellite communication and providing basic data for subsequent analysis. The learning model construction module establishes a data transmission prediction model by using the parameter data. And the transmission quality prediction module estimates the transmission quality of the satellite channel by means of the model. And the data behavior simulation module simulates the dynamic behavior of the data packet in the channel according to the transmission quality estimation result. And the communication scheme optimization module generates a final transmission strategy according to the simulation result and a preset communication target. Through close cooperation of the modules, the system achieves accurate prediction of satellite channel transmission quality, effective simulation of data packet behaviors and optimization of a communication scheme, and plays an important role in data transmission of the Internet of Things.

A method for operating a wireless transmission system includes (i) receiving, as input, direct current (DC) power from a power and data connector that comprises a power input and a bi-directional data connector, (ii) generating a driving signal for driving an antenna of the wireless power transmission system, (iii) generating alternating current (AC) wireless signals based on the input DC power and the driving signal, (iv) propagate AC wireless power signals that are based on the AC wireless signals via the antenna, (v) couple with a wireless receiver system via the AC wireless power signals, (vi) receiving data associated with a peripheral device by decoding in-band data signals from the AC wireless power signals that are encoded by the wireless receiver system, and (vii) providing the data associated with the peripheral device to a client device operatively associated with the wireless transmission system, via the bi-directional data connector.

The invention provides a satellite service data analysis method and system based on a dynamic protocol, belongs to the technical field of satellite real-time data processing, and is used for analyzing satellite data downloaded by a data transmission link so as to complete closed-loop verification on a satellite data transmission core data flow path. The method depends on the support capability of an on-satellite data transmission system for a multi-channel downloading mode, and the independent, lossless and time sequence fidelity binary disk falling capability of ground detection equipment for each channel data. The method comprises the following steps: acquiring original downlink data highly consistent with an on-orbit state; secondly, adopting a scheduler model to carry out structured segmentation and affiliation allocation on the AOS frame after the original data stream is restored; and finally, dynamically loading a corresponding protocol description file for each data unit, and performing field-by-field decoding according to a mapping rule of binary data and readable engineering quantity to generate structured table data. The method can be widely applied to whole-satellite integration test scenes of various remote sensing satellites such as optics, SAR and infrared.

The invention provides an RDMA (Remote Direct Memory Access) out-of-order receiving and selective retransmission method, which comprises the following steps of: recording an arrival state of a data packet by adopting a Bitmap algorithm and / or a segmentation marking algorithm of a sliding window, dynamically generating ACK (Acknowledgement Character) or NAK (Negative Attached Keying) feedback information according to the algorithm, and only retransmitting a lost data packet according to the received NAK feedback information. The RDMA out-of-order receiving and selective retransmission method supports Bitmap statistics of a sliding window or a segment marking method of saving a memory, is compatible with an existing protocol and realizes an ACK mechanism of selective retransmission, and avoids the problem of redundant transmission in a traditional mechanism. The invention further discloses computer equipment, a data transmission system and a computer readable storage medium.

The invention relates to the technical field of ice engineering measurement, and discloses an underwater special-shaped structure surface floating icebreaking load spatial and temporal distribution test system, which comprises a flexible high-density distributed pressure sensor array, a high-speed synchronous data acquisition module, an underwater data transmission system and a shore data processing platform, the flexible high-density distributed pressure sensor array is attached to the surface of an underwater target special-shaped structure; the high-speed synchronous data acquisition module is mounted in a sealed cabin in the special-shaped structure of the underwater target, is close to the flexible high-density distributed pressure sensor array and is used for digitalization; the underwater data transmission system is used for communication between the high-speed synchronous data acquisition module and the ashore data processing platform; and the ashore data processing platform is used for reconstructing and visually displaying the pressure field of the special-shaped structure of the underwater target. According to the method, more comprehensive and accurate ice-structure interaction load information can be obtained, and fine structure design is served.

The invention discloses a high-performance reliable transmission system implementation method, and relates to the related field of data transmission control, and the method comprises the following steps: a sending end fragments to-be-sent data according to a preset loading size, outputs a plurality of fragments of the to-be-sent data, and extracts a plurality of protocol heads; the sending end sends a plurality of to-be-sent data fragments to the receiving end in sequence, and the sent data fragments are stored in a sent queue of the sending end; the receiving end performs validity check on the received at least one data fragment, and replies a confirmation message to the sending end according to a check result; and configuring a transmission coordination mechanism, monitoring the transmission process of the plurality of to-be-sent data fragments by using the transmission coordination mechanism, and carrying out coordination construction on the transmission coordination mechanism through the sent queue of the sending end, the received queue of the receiving end and the to-be-sorted queue. The technical problems that an existing data transmission system is low in efficiency and insufficient in reliability are solved, and the technical effect of improving data transmission performance and reliability is achieved.

According to the secure data transmission system based on dynamic encryption authentication provided by the invention, a trust root which cannot be tampered is established for the whole system through the hardware password module, and continuous derivation and rotation of a session key are realized by the dynamic key management module on the basis, so that the security risk caused by long-term use of a static key is effectively solved. And the secure communication gateway module executes bidirectional authentication and anti-hijacking challenge response by using a dynamic key, so that the real-time credibility and session continuity of the communication process are ensured. And the strategy control engine uniformly coordinates the behaviors of key management and the communication gateway by receiving and compiling the declarative strategy, so that flexible deployment and centralized management and control of the security strategy are realized. According to the system, a cryptographic basis, a dynamic strategy, real-time monitoring and automatic response are deeply fused, a self-adaptive and automatic deep defense system with the capability of continuously resisting advanced threats is constructed, and the overall safety level and the operation efficiency of data transmission are remarkably improved.

The invention discloses a high-speed data transmission system based on a three-dimensional network-on-chip, and relates to the technical field of data transmission. In order to solve the problems of high diagonal communication delay, unreasonable node layout and poor heat dissipation of a traditional three-dimensional network on chip, the adopted scheme comprises a short connection 3D ScMesh topology module which is used for shortening the distance between nodes and reducing the communication delay through horizontal diagonal short connection and TSV vertical cross-layer interconnection on the basis of a 3D Mesh structure and matching an adaptive router and static routing algorithm; the SA-GA hybrid optimization algorithm module is used for completing position planning of the data acquisition nodes and the storage nodes through cooperation of SA and GA and finally realizing resource allocation optimization; and the layered heat dissipation layout module is used for deploying the storage nodes in a heat dissipation dominant area based on a heat distribution model, and solving the problem of heat accumulation of 3D NoC stacking. The method is suitable for scenes with high requirements on data transmission rate, delay and heat dissipation performance, such as a multi-core processor and a large-scale system-on-chip.

Systems, computer program products, and methods are described herein for scalable network data transmission within a network environment. An example system receives a plurality of ETL tasks and task characteristics associated with each ETL task. In addition, the example system captures network environment configuration at periodic intervals. Using a machine learning (ML) model, the example system may dynamically determine additional secondary ETL pipelines to process the plurality of ETL tasks. Once the appropriate secondary pipelines are identified, the system executes the ETL tasks using both the primary and the secondary pipelines, ensuring efficient and adaptable task processing within a network environment.

The invention relates to the field of intelligent power grids and intelligent fusion terminals, in particular to an intelligent fusion terminal data transmission system based on multi-channel dynamic encryption, and the system comprises the steps: obtaining to-be-transmitted business data through an intelligent fusion terminal; selecting a plurality of target channels for parallel data transmission through a parallel transmission distribution module, and performing service data distribution based on the activeness of each target channel to obtain target service data of each target channel; obtaining a preset key of each target channel through a data encryption module to encrypt corresponding target service data, and obtaining a target service data ciphertext of each target channel; transmitting the corresponding target service data ciphertext to a data processing terminal in parallel by using each target channel through a data transmission module; and obtaining a preset key of each target channel through the data processing terminal to decrypt the target service data ciphertext, and restoring to obtain the original service data. According to the invention, the real-time performance and reliability of service data transmission of the intelligent fusion terminal are improved.

Systems, computer program products, and methods are described herein for adaptive user-locality-based data transmissions. Embodiments of the present disclosure are configured to generate a first dataset including one or more first data entries associated with a user, process the one or more first data entries of the first dataset, extract, via the processing, one or more geographical data entries of the one or more first data entries, receive, using a network interface, a second dataset including one or more event data entries associated with the one or more geographical data entries, generate a data transmission including data of at least one event data entry of the one or more event data entries, and transmit, using the network interface, the data transmission to a user device of the user via a communication network.

The invention provides a one-way data transmission system based on laser collimation transmission and optical isolation, and the system employs a closed-loop control module which integrates high-collimation laser emission, optical channel guidance, receiving end optical isolation and photoelectric conversion, and signal processing and system monitoring. A complete and intelligent one-way data transmission solution is constructed, strict unidirectionality and physical irreversibility of a laser signal transmission path are effectively ensured, meanwhile, the system can dynamically and adaptively compensate performance fluctuation caused by environment or device factors through real-time monitoring of communication quality and key parameters, and the reliability of the system is improved. Therefore, high-reliability and high-security data transmission is maintained in the whole life cycle, and the long-term stability and anti-eavesdropping capability of the system in a harsh application environment are remarkably improved.

The invention discloses a data transmission system and method based on optical remote sensing data. The system comprises a user terminal, a satellite constellation and a ground control center, wherein the ground control center is configured with a terminal position and ephemeris management module, an environment modeling module, a track and sight distance prediction module and a resource scheduling optimization module. A high-precision three-dimensional environment model around a user is constructed by introducing optical remote sensing, and in combination with satellite trajectory calculation and ray tracing / machine learning prediction, link shielding is judged and avoided in advance. Based on a prediction result, the system can perform high-speed burst transmission in a visible window or actively complete satellite switching before shielding, so that the continuity and reliability of satellite direct connection communication in complex environments such as cities and canyons are remarkably improved. According to the invention, the limitation of passive switching in the prior art is broken through, the resource utilization rate and the user experience can be effectively improved, and technical support is provided for constructing an ubiquitous space-ground integrated communication network.

The invention relates to the technical field of satellite communication transmission optimization, and discloses a multi-band collaborative satellite communication remote data transmission system. According to the system, terminal historical data are processed through waveform decomposition, steady-state and transient characteristics are extracted, and a terminal-level dynamic transmission characteristic spectrum is constructed in combination with real-time parameters. And carrying out feature level comparison on the feature spectrum and ground station measured data, fusing time delay, frequency offset and coding distortion differences to generate a difference fusion spectrum, mapping the difference fusion spectrum to a satellite network topology, and identifying an abnormal propagation path and a corresponding physical region. And then activating multi-frequency-band cooperative monitoring, and completing accurate positioning and self-adaptive response of an abnormal region by adjusting satellite node parameters and applying controllable disturbance. According to the scheme, terminal-level behavior characteristics and network topology mapping are utilized, accurate diagnosis from signal tracing to a space path is achieved, and the accuracy of satellite network transmission anomaly management and the autonomous response capability of a system are improved.

The invention discloses an isolated SPI (Serial Peripheral Interface) data transmission system and method. The system comprises an SPI primary side, an isolated transmission interface with two channels and an SPI secondary side. The SPI primary side maps MOSI, SCLK and CSB signals from a host into a unified sending data packet through protocol conversion; the system transmits the sending data packet and the response data packet from the secondary side through the first isolation channel and the second isolation channel, so that a complete SPI communication protocol is realized. Through an innovative protocol conversion architecture, traditional four-wire SPI communication is adapted to a dual-channel isolation interface, the number of required isolation channels is remarkably reduced while high reliability is ensured, and the problem of multi-channel delay inconsistency is solved, so that the technical effects of saving the chip area and reducing the overall power consumption are achieved.

The application provides a data transmission method, a distributor, a data transmission system and a medium, relates to the technical field of computers, and the method is applied to a distributor device arranged between a zero-trust server cluster and a switch, and comprises the following steps: receiving a client virtual IP and a target server MAC address sent by a target server after the target server is logged in at a client and is assigned a virtual IP; writing the corresponding relationship into a first ARP table; receiving an access data packet sent by the target server, forwarding the access data packet to a business system through the switch; receiving a response data packet sent by the switch, the response data packet having a client virtual IP as a destination IP; querying the first ARP table according to the destination IP to obtain the target server MAC address, forwarding the response data packet to the target server, and returning the response data packet to the client by the target server. According to the application, the virtual IP and the server MAC are mapped and stored by the distributor, accurate packet forwarding of the cluster is realized, and resource waste caused by multicast of the switch is avoided.

This invention relates to the field of secure data transmission, and more particularly to a power data transmission system based on a unidirectional isolation gateway. The system includes: a gateway monitoring module for determining the transmission execution strategy of each transmission execution gateway based on the associated core proportion index and the associated load change index; a redundancy optimization module for determining the redundancy processing method of a type of transmission execution gateway based on the associated correlation proportion index and the core correlation index; an association optimization module for determining the reserved execution method of a type of transmission execution gateway based on the associated load processing index; and a redundancy allocation module for determining the allocation processing method of redundant allocation gateways based on the execution correlation coefficient. This invention improves the transmission quality and efficiency of power data transmission based on a unidirectional isolation gateway.

The application provides a photovoltaic power station cloud edge collaborative control system, and belongs to the technical field of photovoltaic power station information transmission. The photovoltaic power station cloud edge collaborative control system comprises a photovoltaic power station data transmission system and a cloud end management control system which are communicatively connected. The photovoltaic power station data transmission system is used for collecting control data of an inverter, production data of the inverter and electrical equipment and monitoring data of monitoring equipment, and performing analysis, calculation, diagnosis and summary processing on the data, obtaining a SAMA logic diagram of distribution scheduling instructions, production data summary results and corresponding alarm information, and sending the data to the cloud end management control system for display. The SAMA logic diagram of distribution scheduling instructions is debugged and modified according to the production data summary results, and the modified SAMA logic diagram of distribution scheduling instructions is sent to an inverter data rapid transmission module. The data of the photovoltaic power station can be quickly refreshed, the stability of the system is ensured, and the operation and maintenance management efficiency of the photovoltaic power station can be improved.

The invention relates to a data transmission system and method. The system comprises a CDN edge node, a CDN dispatching center node and an upper layer PCDN intranet node. Wherein the CDN edge node is used for receiving a user request and sending a request back to an upper layer to the CDN dispatching center node; the CDN dispatching center node is used for receiving an upper layer returning request and sending a cache request instruction to the upper layer PCDN intranet node; the upper PCDN intranet node is used for acquiring cache data based on a received cache request instruction and sending the acquired cache data to the corresponding CDN edge node, and the CDN edge node responds to the cache data to a user. According to the method, PCDN intranet node resources are applied to the CDN upper layer, and the purpose that the CDN edge node obtains the upper layer cache data is achieved.

Internal data contributing to trouble resolving is easily acquired, and usability is improved. An inkjet recording device includes an operating state acquisition unit that acquires parameter values indicating an operating state of the inkjet recording device, which includes at least one a pressurization state, a charge state, a deflection state, and a recovery state, a display unit that displays a reception screen for receiving a command to generate a two-dimensional code from a user, and a code generation unit that generates the two-dimensional code by encoding a parameter value constituting a parameter set of a predefined type among the parameter values acquired by the operating state acquisition unit when the generation command is received via the reception screen of the display unit. The display unit is configured to display the two-dimensional code generated by the code generation unit.

This application provides a voice data transmission method, device, apparatus, and computer program product, achieving highly flexible voice data transmission and improving the transmission effect of voice data. The method is applied to a voice data transmission system including a transmitting device and a receiving device. The method includes: a transmitting device for acquiring target text data corresponding to voice data; transmitting the target text data to a receiving device; and a receiving device for receiving the target text data from the transmitting device; and obtaining target voice data based on the target text data and target voice features.

A method is provided for initialising a system arrangement or a data channel, where packet-based data transmissions are optimised in such a way that they have a deterministic latency time. In addition, it is ensured that a single physical data line can be used, although 128 lines may be implemented. Due to the frame-based transmission, the latency of the data transmission is not linked to the bandwidth of the transmission channel. Thus, a deterministic latency time is achieved via a single physical communication channel, which in turn is particularly advantageous in automobiles, where weight savings are necessary to increase the range of the automobile. Also provided is an appropriately configured system arrangement as well as a computer program product and a memory-readable medium with control commands which implement the method or operate the system arrangement.

A method for operating a wireless transmission system includes (i) receiving, as input, direct current (DC) power from a power and data connector that comprises a power input and a bi-directional data connector, (ii) generating a driving signal for driving an antenna of the wireless power transmission system, (iii) generating alternating current (AC) wireless signals based on the input DC power and the driving signal, (iv) propagate AC wireless power signals that are based on the AC wireless signals via the antenna, (v) couple with a wireless receiver system via the AC wireless power signals, (vi) receiving data associated with a peripheral device by decoding in-band data signals from the AC wireless power signals that are encoded by the wireless receiver system, and (vii) providing the data associated with the peripheral device to a client device operatively associated with the wireless transmission system, via the bi-directional data connector.

This invention relates to the field of smart grids and smart converged terminals, specifically to a data transmission system for smart converged terminals based on multi-channel dynamic encryption. The system involves: acquiring service data to be transmitted through the smart converged terminal; selecting several target channels for parallel data transmission through a parallel transmission allocation module, allocating service data based on the activity level of each target channel to obtain target service data for each channel; encrypting the corresponding target service data using a preset key obtained by a data encryption module, resulting in ciphertext of the target service data for each channel; transmitting the ciphertext of the target service data in parallel to a data processing terminal using the target channels through a data transmission module; and decrypting the ciphertext of the target service data using the preset key obtained by the data processing terminal to restore the original service data. This invention improves the real-time performance and reliability of service data transmission in smart converged terminals.

The invention relates to a connector connection device for a data transmission system (36), in particular an HVAC system (38), which has at least a first connector unit (10) with at least five first electrical contact elements (12), in particular arranged without electrical contact to each other, and which has at least a second connector unit (14) with at least five second electrical contact elements (16), in particular arranged without electrical contact to each other, wherein the first connector unit (10) is configured to be electrically connected at least to the second connector unit (14). It is proposed that at least one of the at least five first electrical contact elements (12) is arranged in a mounting direction (22), in particular plugging direction, of the plug connection device behind at least one of the at least four other first electrical contact elements (12).

This invention relates to the field of visible light communication technology and discloses a smart lighting data transmission system based on visible light communication. The system includes an optical signal processing module, a transmission management module, and a terminal control module. The optical signal processing module acquires and processes visible light signals, outputting a spatially encoded light intensity signal. The transmission management module receives this signal, decodes it through a signal analysis unit to obtain the original data stream signal and channel interference characteristic signal, processes it through a channel optimization unit to obtain the optimal modulation parameter signal, and outputs a dynamic bandwidth allocation signal through a transmission strategy unit. In the terminal control module, an adaptive modulation execution unit adjusts the light transmitter drive parameters according to the optimal modulation parameter signal, a lighting array control unit adjusts the working state of the lighting units and collects real-time link status signals, and a link monitoring module outputs a communication quality index. This system is suitable for scenarios integrating smart lighting and data transmission.

Systems and methods for data transmission are disclosed. The system can include a phase test circuit including a difference detection circuit, a low pass filter circuit, and a reference comparison circuit. The difference detection circuit can be configured to produce an output signal having a duty cycle corresponding to a phase difference between a first input signal and a second input signal. The low pass filter circuit can be connected to an output of the difference detection circuit, and the reference comparison circuit can be configured to compare an output signal of the low pass filter circuit to a threshold.

A data transmission system includes a transmitter and a receiver. The transmitter receives an image data of a signal source at a first time, generate a transmitter signal event according to a transmitter timing information, and transmit the transmitter signal event and the image data through a network. The receiver receives the transmitter signal event and the image data through the network, and obtain the transmitter timing information according to the transmitter signal event. The receiver adjusts a receiver data transmission speed of the receiver according to the transmitter timing information, so that a transmitter data transmission speed of the transmitter and the receiver data transmission speed of the receiver are consistent. The receiver transmits the image data at a second time, and a time difference between the first time and the second time is smaller than three frames of the image data.