27results about How to "High communication rate" patented technology

The invention provides a'random access' satellite communication method based on a phased array agile beam, and the working mode of communication between a satellite and a terminal is divided into two scenes: scene 1, the terminal accesses the network and applies resources under a global signaling beam, the phased array agile beam is scheduled on the satellite to point to the terminal, and the terminal performs resource application under the phased array agile beam; service communication is completed; scene 2, the terminal accesses the network under the signaling enhanced beam, the satellite schedules the phased array agile beam to point to the terminal, and the terminal completes resource application and service communication under the phased array agile beam. According to the invention, a'random access' satellite communication method integrating'global signaling beams and phased array agile beams' is adopted, the advantages of the global signaling beams and the phased array agile beams are integrated, the method has the characteristics of wide-area coverage of beams, dynamic and configurable resources, high service communication EIRP and high G / T value, the terminal is supported to perform'network access authentication 'under the global signaling beams, and the user experience is improved. And service communication is carried out under the phased array agile wave beam, so that the communication rate and the user experience of the small terminal are improved.

The invention relates to the technical field of intelligent power grids, in particular to an inspection vehicle tracking and communication optimization method and system, and the method comprises the steps: constructing an RIS-ISAC-NOMA system framework oriented to an intelligent power grid application scene, converting a non-line-of-sight NLOS path into an equivalent virtual line-of-sight LOS path through a reconfigurable intelligent metasurface RIS in a non-line-of-sight NLOS scene, and carrying out the tracking and communication optimization of an inspection vehicle through the virtual line-of-sight LOS path. A propagation path of an ISAC signal is adjusted in real time, and a vehicle tracking and predicting method based on an EKF algorithm is designed, so that efficient vehicle real-time sensing and communication are realized; a multi-inspection vehicle power distribution optimization scheme is provided in combination with the NOMA technology, the communication rate and the resource utilization efficiency of the system are further improved, meanwhile, the simulation result also verifies the advantages of the proposed system in the aspects of communication performance and resource utilization, and the overall efficiency of the system can be remarkably improved while the pilot signal overhead is reduced.

The invention discloses a communication method, an SPI host, an SPI slave and an SPI communication system. The communication method is applied to an SPI host, the SPI host is connected with an SPI slave through a communication interface, and the communication method comprises the steps that data frames in a preset number of first registers of the SPI slave are sequentially read, and first check codes calculated by the SPI slave based on the data frames in the preset number of first registers are read; calculating a second check code based on the data frames in the preset number of first registers; and judging whether the data frame read by the SPI host is correct or not based on the first check code and the second check code. Through the above mode, the communication method does not need to frequently calculate the check code, so that the calculation time of the check code can be reduced, and the communication rate and efficiency are improved.

The invention discloses a channel compensation method and device, electronic equipment and a storage medium, and relates to the technical field of signal processing. The method comprises the following steps: acquiring a receiving end pilot signal and a transmitting end pilot signal; performing signal estimation on the receiving end pilot signal and the transmitting end pilot signal by adopting an initial channel estimation algorithm to obtain an initial channel compensation matrix; based on a pre-trained channel compensation matrix updating model, correcting the initial channel compensation matrix to obtain a target channel compensation matrix; and adopting the target signal compensation matrix to perform channel compensation on the receiving end pilot signal to obtain an original pilot signal. According to the technical scheme of the embodiment of the invention, the deployment cost of a physical layer can be reduced, the expandability of signal estimation is improved, the calculation overhead is reduced, the signal compensation precision is improved, the bit error rate of a receiving end is remarkably reduced, the communication rate is improved, and the stability requirements of a current communication system on high rate, low time delay and high reliability can be met.

The application provides a kind of intelligent metasurface assisted near-field time division integrated sensing method and system, it is related to wireless communication field.The application designs integrated sensing system by introducing RIS and single antenna receiver, avoids complex full-duplex base station and multi-antenna receiver, significantly reduces hardware complexity and implementation cost under the premise of ensuring high-quality communication and sensing performance;The adjustable frame structure designed separates the communication subframe and the sensing subframe completely, decouples the communication beam optimization and the sensing signal design, respectively realizes the communication and sensing functions in a purer signal environment;In the communication subframe, the communication and rate maximization are realized, and in the sensing subframe, the sensing capability is enhanced through the transmission beam pattern matching, which significantly improves the overall communication rate and sensing accuracy of the system;Finally, a virtual multi-dimensional receiving signal of multiple passive targets in the near field of RIS is constructed through repetition coding design, and then the 2D-MUSIC algorithm is used to estimate the target angle and distance parameters.

The invention provides a cable release hook system which comprises a control processing device, an information exchange device, a remote release device, a cable release device, a central control processing device, a DCS processing device, a serial port service device, a terminal processing device, a data acquisition device, a display terminal device and a processing terminal device. The control processing device is connected with the information exchange device, and the information exchange device is connected with the remote release device, the cable hook release device, the central control processing device, the DCS processing device, the serial port service device and the terminal processing device. The serial port service equipment is respectively connected with the data acquisition equipment, the display terminal equipment and the processing terminal equipment; the remote releasing device and the control processing device are both used for controlling the cable hook to be separated from the device.

The embodiment of the application provides a kind of data transmission system, it is related to wireless radio frequency communication technical field.System includes: gateway device, multiple imaging devices with gateway device wireless communication connection and multiple sensors with each imaging device wireless communication connection;Each imaging device and wireless communication connection sensor communicate by preset communication parameter;First device when determining that there is to-be-sent data, parameter switching request is sent to the second device of system, and to-be-sent data is sent to the second device by target communication parameter carried in parameter switching request;Target radio frequency is different from preset radio frequency, and target communication rate is higher than preset communication rate;Second device receives parameter switching request;Switch to target communication parameter by itself communication parameter, and receive to-be-sent data by target communication parameter.It can be seen above, application the scheme provided in embodiment of the application can improve the effect of data transmission in data transmission system.

The present invention relates to the field of optical communication technology, and discloses a coherent optical transmission method and a coherent optical transmission system, the method comprising: optically splitting an adjustable optical signal of a first preset wavelength to obtain a first optical signal and a second optical signal; optically combining the first optical signal and the second optical signal to obtain a combined optical signal, the bandwidth of the combined optical signal being the sum of the bandwidths of the first optical signal and the second optical signal; power amplifying the combined optical signal to obtain a first radio frequency optical signal, and outputting the first radio frequency optical signal through an optical fiber antenna. Therefore, the present invention can firstly optically split the adjustable optical signal to obtain a first optical signal and a second optical signal, and then optically combine the modulated first optical signal and the second optical signal to obtain a combined optical signal having a bandwidth that is the sum of the bandwidths of the first optical signal and the second optical signal, thereby increasing the bandwidth of the single optical signal outputted in the end, and meeting the large bandwidth transmission requirements of optical communication.

The application discloses a bidirectional multi-level conversion circuit, comprising: a first resistor, a first end of which is connected with a communication link signal, and a second end of which is connected with a power supply voltage; a second resistor, a first end of which is connected with the communication link signal, and a second end of which is connected with the power supply voltage through a second switch device; a fifth resistor, a first end of which is connected with a control end of a third switch device, and a second end of which is connected between a seventh resistor and a first switch device; a sixth resistor, a first end of which is connected with the control end of the third switch device, and a second end of which is connected with the power supply voltage; the seventh resistor is connected with the ground through the first switch device; a control end of the first switch device is connected with the communication link signal through a third resistor; a control end of the second switch device is connected with the power supply voltage through the third switch device, and the control end of the second switch device is connected with the first switch device through the seventh resistor. The application has the advantages of better signal quality, lower low level, slower rising edge, higher communication rate, and low cost.

This invention provides an energy adaptive adjustment device and method for underwater wireless optical communication, relating to the field of underwater wireless optical communication. The device includes: an adaptive adjustment module, a signal processing module, an optical antenna, a tunable optical attenuator, and a beam splitter. The tunable optical attenuator adjusts the light intensity energy of the optical signal according to the feedback signal from the adaptive adjustment module. The beam splitter splits the optical signal output from the tunable optical attenuator into two paths, one transmitted to the adaptive adjustment module and the other to the signal processing module. The signal processing module generates an energy calibration result and sends it to the adaptive adjustment module, and receives the optical signal from the beam splitter, processes it, and outputs it. The adaptive adjustment module receives the signals from the beam splitter and the signal processing module, processes them, and feeds them back to the tunable optical attenuator. This invention solves the problem that the signal energy detected by the receiving end of the device cannot be adaptively adjusted, improving the practicality and robustness of the communication device.

The present invention provides a non-contact data transmission device, system and method between trains, the device comprising: a mounting bracket fixedly connected to the coupler connector of the first train car; an optical signal transmission module fixed to the mounting bracket, comprising: a processor connected to the Ethernet link of the first train car through a data interface, for performing data conversion on the data sent and received by the train car; a data sending module connected to the processor, for converting the electrical signal output by the processor into an optical signal and sending the optical signal to the second train car, the second train car being connected to the first train car through the coupler connector; a data receiving module connected to the processor, for receiving an optical signal from the second train car, and converting the received optical signal into an electrical signal and sending it to the processor. The present application is wear-free, shock-resistant, has no electromagnetic wave leakage and has high reliability.

The application belongs to the technical field of vehicle communication, and discloses a multi-bus self-organizing network device with a three-CPU architecture, which comprises a motherboard, a first bus board, a second bus board and a third bus board; the motherboard is connected with an external power supply, and the first bus board, the second bus board and the third bus board are all connected with the motherboard. The three bus boards can realize the starting of a FlexRay bus network, and can communicate with an upper computer through the CAN bus of the bus board; a CAN bus interface and two FlexRay bus interfaces are integrated in a small space, the interaction mode of the two buses is perfect, the communication rate is high, the protection level is high, and the anti-electromagnetic interference is high; the FlexRay bus can be connected with multiple bus nodes, and can communicate with the upper computer through the CAN bus, so that the FlexRay bus communication condition can be monitored in real time and fault positioning can be performed, and the use requirements of military armored vehicles on multiple bus communication, multiple bus information interaction, complex environment and strong anti-interference are met.

This invention discloses a high-speed laser wireless power transmission and communication composite device, comprising: a total internal reflection reflector and an output reflector forming a resonant cavity for a laser; the laser output from the output reflector is directly projected onto a photodetector and a photovoltaic cell, achieving communication and power transmission through photoelectric conversion demodulation and photovoltaic conversion; a laser gain medium provides laser gain, and when the gain exceeds the coupling output and resonant cavity losses, laser oscillation is formed within the cavity, generating laser output through the output reflector; the total internal reflection reflector and the output reflector are corner cube prisms; an aperture is added at the receiving end to block the apex and ridge of the corner cube prism, ensuring that the laser oscillation optical path can only be laterally displaced through the reflecting surface of the output corner cube prism-type reflector, forming a ring-shaped optical path within the cavity; an optical isolator is introduced at the transmitting end to enable unidirectional traveling wave operation of the laser, eliminating spatial hole burning and allowing the laser to operate in a single longitudinal mode under mode competition. This invention overcomes the problem of low communication rates in existing technologies using spatial intensity modulation methods.

The application discloses a fiber compass data transmission acceleration method based on an IBS system, wherein the IBS system comprises a fiber compass system, the fiber compass system comprises a distribution unit, the IBS system comprises a plurality of external instruments or devices, and the IBS system further comprises a microprocessor; data signals collected by the external instruments or devices in the IBS system are firstly transmitted to the microprocessor for preliminary judgment and screening, and then the data signals after the preliminary judgment and screening are transmitted to the fiber compass system after being distributed with real clock data signals, so that the sailing parameters of a ship are corrected; and then the corrected sailing parameters of the ship are transmitted back to the external instruments or devices, so that the external instruments or devices are adjusted according to the sailing parameters, and finally the autonomous sailing control of the ship is realized; and the application can be applied to the IBS system with the fiber compass system, and solves the technical problems that the signal transmission between the fiber compass system and the IBS system is prone to errors or lag and lacks effectiveness judgment.

The invention is applicable to the technical field of wireless communication, and provides a slotted cross dipole antenna loaded with an artificial magnetic conductor structure, which comprises three layers of dielectric substrates, namely a first layer of dielectric substrate, a second layer of dielectric substrate and a third layer of dielectric substrate; the two pairs of crossed dipoles are printed on the top and the bottom of the first dielectric substrate in pairs, the surfaces of the crossed dipoles are provided with slots, and each pair of crossed dipoles is connected through a microstrip line segment; the metal columns penetrate through the three layers of dielectric substrates to feed the crossed dipoles; the artificial magnetic conductor structure is printed on the top of the second-layer dielectric substrate; the low-profile broadband high-isolation dual-linear polarization microstrip antenna realizes the characteristics of low profile, broadband, high isolation and dual-linear polarization, and is suitable for the field of Internet of Things and wireless communication.

The present disclosure proposes a method used by a receiver to facilitate de-rate matching bits of a symbol formed after a rate matching process from a transmitter, wherein the transmitter selects Z bits from channel coded bits and then generates E bits by concatenating the Z bits and their copies for the rate matching process. The method comprises: demodulating the symbol to obtain E soft bits corresponding to the E bits; zeroing values of Z consecutive locations of a memory, wherein the Z consecutive locations correspond to bit locations of the Z bits; writing the E soft bits into a buffering device; for each soft bit in the E soft bits in the buffering device, directly adding a value of the soft bit and a value of one location of the Z consecutive locations and storing the addition result back to the location, wherein one bit in the E bits corresponding to the soft bit is one bit in the Z bits corresponding to the location or is one copy of the bit in the Z bits; and recovering the Z bits from final results of the Z consecutive locations. The method facilitates de-rate matching by reducing its storage usage and processing delay.

The utility model relates to a computing device and a computing server. The computing device comprises a universal substrate; the at least two computing acceleration cards are mounted on the universal substrate; the switch module is mounted on the universal substrate and is coupled to the at least two computing acceleration cards through data interconnection wires arranged in the universal substrate, and a data interaction path between any two computing acceleration cards in the at least two computing acceleration cards comprises the switch module; one-to-one data interconnection wiring which does not pass through the switch module does not exist between any two computing acceleration cards in the at least two computing acceleration cards. According to the method and the device, the adaptive adjustment of the interconnection relationship of the computing acceleration cards aiming at the specific computing task is realized, the optimization capability of the data interaction topology of the computing device and the computing server aiming at the computing task is improved, and the internal bandwidth between the computing acceleration cards is favorably improved; and the overall computing efficiency of the computing architecture can be improved to the greatest extent under various different computing tasks.

The invention discloses an OTFS modulation method suitable for underwater high-speed mobile communication, and the method comprises the steps: generating a real number random number sequence and an imaginary number random number sequence, dividing a time delay grid and a Doppler grid, and generating binary random data; performing digital modulation on the binary random data to generate a coded signal in a time delay-Doppler domain; constructing a synchronization head signal, and carrying out frequency spectrum shifting on the coded signal and the synchronization head signal; the transmitting signal reaches a receiving end through an underwater acoustic channel to obtain a receiving signal; and finding the specific position of the required signal in the received signal, calculating the impulse response and Doppler parameter of the channel, and constructing a channel model to realize high-speed communication of the underwater acoustic channel. According to the method, the information is directly modulated to the time delay-Doppler stretching domain, the method accords with the actual physical process, the coupling effect of the Doppler domain and the time delay domain is considered, the effect is better, the communication rate is improved, and the error rate can be reduced.

This invention belongs to the field of integrated machine learning, communication, and sensing technologies. Specifically, it relates to an intelligent sensing-assisted end-to-end beamforming prediction method and system. This method can more accurately predict the state information of mobile terminals or intelligent agents when direct communication links are blocked or channel quality is limited, thereby improving the beam prediction performance of the system's downlink communication. This invention constructs a complex tensor from historical multi-slot, multi-target echo observations as input to the end-to-end model. The echoes undergo structured preprocessing, and a dual-branch approach (amplitude / phase) is used to extract a more favorable representation for communication beam prediction. The amplitude branch provides stable intensity and correlation clues, while the phase branch carries spatial angle information and forms a multi-target embedding. Simultaneously, based on indicators such as amplitude or correlation, the method selects the k most relevant neighboring targets from the multi-sensing targets to participate in subsequent predictions, thereby improving the effective information density and prediction robustness from the source.

The application discloses an I2C interface and an interface chip, the I2C interface comprises a push-pull output module and a data interface; the push-pull output module is used for controlling the in-chip data signal of a target chip to be output from the data interface to outside the chip in response to a first configuration signal, and the first configuration signal is used for representing that the I2C interface is configured as a push-pull mode in an I3C mode. The application controls the in-chip data signal of the target chip to be output from the data interface to outside the chip based on the push-pull mode in the I3C mode in response to the first configuration signal through the push-pull output module, so that the I2C interface of the application can be compatible with the push-pull mode in the I3C mode, the communication rate is greatly improved, the application scene of the I2C interface is expanded, and the adaptability is more extensive.

The invention discloses an industrial and commercial energy storage system and controller for battery and energy management, and relates to the technical field of energy management, and the industrial and commercial energy storage system comprises a battery information acquisition module, a factory charging energy storage analysis unit, a factory charging power processing unit and a local database. The mode of combining the station controller and the cluster controller is used, the original design of EMS + BMS + local controller + multiple switches is replaced, the design of the control system is optimized, the number of modules and the interface complexity are reduced, meanwhile, the LAN + CAN communication mode of the original system is replaced with the full-system LAN communication design, the real-time performance and efficiency of the system are improved, and in the charging process, the real-time performance of the system is improved. According to the method, the charging battery clusters of the liquid refrigerators of the station controller to which the factory belongs are monitored in real time, and the charging input power of the charging battery clusters of the liquid refrigerators of the station controller to which the factory belongs is dynamically adjusted, so that the occurrence rate of the problem of overlong charging time is reduced, and the battery use efficiency of the factory is improved.

The invention discloses a communication system based on intelligent beam forming and dynamic spectrum sensing, which relates to the technical field of communication technology and comprises a cognitive spectrum sensing module, a satellite-ground cooperative beam forming module, an edge intelligent control module and a self-adaptive communication transceiving module. The cognitive spectrum sensing module acquires a cognitive radio multi-dimensional analysis model through a wide-frequency-band signal; through a deep residual network and cognitive cycle detection combined spectrum sensing algorithm and an Attention-LSTM spectrum prediction model, the cross-band spectrum hole recognition accuracy is improved to 92% or above, the spectrum prediction advance reaches 2-8 s, and the spectrum utilization rate is improved by 50% or above; according to the AI-driven adaptive communication mechanism and the joint optimization strategy, the system can adapt to the multi-scene requirement from urban dense coverage to polar region remote coverage, the communication rate is increased to 500 Mbps or above, the time delay is controlled within 20 ms, and the 6G advanced research communication standard is achieved.

This invention provides an implantable medical device and system. The device includes a coil for receiving commands and electrical energy; a voltage regulator capacitor unit that can be set to a low capacitance state or a high capacitance state; and a controller for setting the voltage regulator capacitor unit to a high capacitance state and receiving electrical energy through the coil to charge a battery when a charging command is received through the coil, otherwise setting the voltage regulator capacitor unit to a low capacitance state and receiving communication commands through the coil.

The invention provides an AUV test dual-mode remote communication system and method based on a 4G network, the system comprises an AUV communication terminal, a water surface buoy relay device, a cloud server platform and a shore-based control center, and the method comprises the steps that the AUV communication terminal monitors the water surface wireless or underwater wired signal intensity in real time; and a water surface direct connection communication mode or an underwater buoy relay mode is selected in combination with actual water surface / underwater working conditions. According to the invention, the 4G network is constructed to realize high-bandwidth communication between the AUV on the water surface and the shore base, the wired network is constructed through the power line carrier to realize small-batch and high-priority real-time data interaction during underwater navigation of the AUV, frequent deployment and recovery in the debugging stage of the AUV are avoided, the test efficiency is greatly improved, and the labor intensity and the operation risk are reduced.

The invention provides a coexistence transmission method for a WIA-FA network and other wireless network protocols, and relates to the technical field of wireless communication, WIA-FA network equipment sends a CTS-to-Self frame based on a WLAN wireless network protocol standard before each transmission time slot of the WIA-FA network starts, and sends a coordination busy tone for channel occupation indication; the WIA-FA network equipment performs data transmission in the transmission time slot; and after the sending time slot is finished, reserving a long time slot for other wireless network protocols to carry out data transmission. And the WLAN wireless network equipment actively withdraws to send data after receiving the CTS-to-Self frame sent by the WIA-FA network equipment, or actively withdraws to send data after detecting a coordination busy tone. According to the invention, the reliability and real-time performance of communication can be ensured when a WIA-FA network and other wireless protocols based on a CSMA mechanism, such as a WLAN, coexist and communicate on the same frequency band.

The utility model relates to the technical field of intelligent robots, in particular to a robot joint driver interface structure, a robot joint driver and a robot. The robot joint driver interface structure comprises a first interface, the first interface is a Type-C interface, and the first interface is used for data flow and / or current transmission. The first interface and the second interface for transmitting current form an interface group which can be flexibly combined and expanded. A new-generation interface specification which is large in current, small in size, high in integration level, long in service life, high in communication rate and capable of being flexibly configured is provided for the joint driver.

This invention discloses an SPI slave controller and its operating method. The SPI slave controller includes an SPI interface, an SPI transmit shift register, an SPI receive shift register, and a system bus interface. The SPI slave controller is integrated into a chip and also includes a core control module, a transmit asynchronous FIFO, a first DMA controller, a receive asynchronous FIFO, a second DMA controller, and a register module. The technical solution provided by this invention adopts a dual asynchronous FIFO (First Input First Output) combined with a dual DMA (Data Memory Access) controller architecture, which greatly improves the communication frequency in the process. It breaks the fixed multiple relationship that must be met between the system clock and the serial communication clock in traditional SPI design, allowing higher communication rates to be supported at lower system clock frequencies, thereby improving the overall data transmission efficiency and system throughput.