44results about How to "Reliable communication" patented technology

The invention provides a dynamic spreading factor anti-interference method based on annealing Q learning. The method comprises the following steps: determining an information transmission rate according to a spreading factor; determining system throughput and an optimization target according to the signal-to-noise ratio of the receiving end; determining a state space, an action space, a state transition probability matrix and rewards in the decision process; calculating a reward obtained by the selection action according to a broadband spectrum sensing result; the interference condition at the current moment is obtained through broadband spectrum sensing; deciding a spreading factor of the next time slot according to the Q value table; the user selects the action of the next time slot according to the decision information and updates the state; the award obtained by selecting the corresponding action is calculated according to the broadband spectrum sensing result; selecting the spreading factor of the next time slot according to the Q value table, and updating the Q value of the selection action in the state; and the user makes the most anti-interference strategy in a dynamic interference environment. According to the method, the system throughput is maximized, and time delay and overhead caused by channel switching are avoided.

The invention relates to the technical field of satellite communication, and discloses a communication method and system for a long-voyage ship based on L frequency band communication, and the method comprises the steps: recognizing the navigation environment and communication demands of the long-voyage ship, recognizing the satellite signals of the long-voyage ship and a communication end through recognizing the frequency band characteristics of a communication frequency band, and carrying out the communication of the long-voyage ship; a signal tracking network of satellite signals is set, signal parameters of the satellite signals are monitored in real time according to the signal tracking network, a quality feedback mechanism of the signal parameters is set, the current signal quality grade is identified, and the signal quality requirements of the long-voyage ship and the communication end are identified based on the current signal quality grade; the method comprises the following steps: setting a multi-beam switching mechanism pointing to beams and a signal locking network of satellite signals, setting a confidential path for transmitting data, and generating a communication result of a long-voyage ship and a communication end in combination with the multi-beam switching mechanism, the signal locking network and the confidential path; according to the invention, the stability and safety of signal transmission can be enhanced, and the communication quality of the long-voyage ship is improved.

The invention discloses a vortex transmitting device for quickly constructing a focused vortex acoustic beam, which comprises an excitation signal circuit, a circular transducer, a lower discrete acoustic lens and an upper discrete acoustic lens, through the design of the lenses, any order vortex acoustic beam with topological charge of-3 to + 3 can be expected to be generated in an underwater acoustic communication system; the flexibility and adaptability of communication are improved. The invention provides an innovative solution for the development of an underwater acoustic communication technology, has important technical significance and application potential, not only obviously enhances the stability and anti-interference capability of the signal, but also ensures that the signal keeps high integrity during long-distance transmission in a complex underwater environment.

The invention discloses a load access control method based on a service grid, and belongs to the technical field of access control, micro-services are provided through the service grid, work such as development, deployment, management and maintenance of the micro-services is simplified, the service grid provides functions such as flow management, service discovery, network strategies, authentication and authorization, monitoring and the like, and the service grid can be widely applied to the field of access control. And communication between micro-services is ensured to be more reliable, efficient and secure. Then, through load control, fine management and control of the micro-service traffic are realized, and the request can be intelligently routed to the most suitable micro-service instance according to the characteristics of the request and the state of the micro-service, so that the performance and availability of the system are improved.

The utility model provides a magnetostrictive liquid level meter circuit, and relates to the technical field of liquid level meters. According to the magnetostrictive liquid level meter circuit, a bus chip KY3001LR with an SOC is applied to a liquid level meter, two-wire system high-speed bus setting with a ring and double ring design is adopted, an edge-triggered pulse excitation circuit is designed through a phase inverter and an RC circuit, a constant-current excitation circuit is designed through a constant-current source, the initial state of the circuit is determined, the excitation pulse width is determined, and the circuit is stable and reliable. The circuit state adaptability in the power-on process is guaranteed, when the length of the sensor changes, the current can be automatically adjusted, the magnetostriction line length can be self-adapted, the interchangeability of the base meter is achieved, and the problems of hardware replacement and test, equipment damage caused by program abnormity and the like are avoided. In addition, the two-wire system high-speed bus is set to have higher driving capability and loading capability, and more parameters and variables can be transmitted; and all functions are completed by using a single chip, so that the communication speed is higher, and the wiring cost is also saved.

The invention provides a vehicle safety access method, device and equipment and a storage medium, and the method comprises the steps: receiving a grade confirmation request sent by an upper computer, obtaining a current safety access grade of a controller, returning the current safety access grade to the upper computer, receiving a target seed request sent by the upper computer, and sending the target seed request to the controller; and obtaining a target seed, returning the target seed to the upper computer, receiving a key sent by the upper computer, performing consistency verification on the key, determining that the key consistency verification is passed, and unlocking the current security access level to the upper computer. Through the level confirmation request and the dynamic key verification, an illegal upper computer is prevented from finding out the security access level supported by the controller in a diagnosis message polling mode, it is ensured that the authorized upper computer securely accesses the controller, flexible access control can be carried out according to different security access levels, and the security of the access controller is improved.

The invention relates to the technical field of communication, in particular to an integrated emergency communication system based on multi-network integration type conduction, which comprises a box body, a multifunctional command platform is configured on the box body, and the multifunctional command platform is integrated with the following systems: a pickup and sound amplification system comprising a microphone, a sound console, a loudspeaker and a power amplifier, the microphone, the sound console and the loudspeaker are arranged at the top of the box body, the power amplifier is arranged on the front side of the box body, a power amplifier interface electrically connected with the power amplifier is arranged on the outer wall of the box body, and the system is integrated in the box body and comprises a plurality of subsystems such as sound pickup and amplification, video acquisition and display, centralized monitoring control, communication and network, satellite positioning and power grid dispatching. High integration is achieved, rapid deployment and movement are facilitated, the communication and network system integrates multiple communication modes such as a mobile public network all-network communication mode, a Tiantong satellite communication mode and a Beidou satellite communication mode, the communication reliability in various complex environments is ensured, and the system is particularly suitable for emergency scenes.

The technical scheme of the invention provides a data acquisition redundant circuit of a single-bus digital temperature sensor in one aspect, and the data acquisition redundant circuit is characterized by comprising M identical temperature sensor data acquisition modules. According to the other technical scheme, the invention discloses a data acquisition device of the single-bus digital temperature sensor, which is characterized by comprising J data acquisition modules realized based on the data acquisition redundant circuit of the single-bus digital temperature sensor, two high-performance 32-bit ARM processors and a signal isolation circuit. According to the invention, through simple data transmission control of the serial-to-parallel shift register and the parallel-to-serial shift register, the microcontroller MCU pre-stores data / commands from the inside to the outside. Meanwhile, a data transmission control object is converted, a unified program execution process is simplified, the reliability of data acquisition and communication is improved, and meanwhile it is guaranteed that the data transmission time sequence of the sensor buses of multiple channels is always synchronous and consistent.

The invention discloses a vehicle communication method, device, equipment and system based on a block chain, and relates to the technical field of vehicles, the vehicle communication method based on the block chain is applied to a vehicle end, and the method comprises the following steps: generating vehicle authentication information according to vehicle identity information and a preset Hash algorithm; sending the vehicle authentication information to a road equipment end, so that the road equipment end feeds back a vehicle access state according to the vehicle authentication information; and when the vehicle access state is received and the vehicle access state is a successful access state, performing vehicle communication based on a block chain. A decentralized trust mechanism is established between the vehicles through the block chain technology, safe and reliable communication between the vehicles is promoted, the problems of centralization and mutual distrust between entities of a traditional centralized Internet of Vehicles architecture are solved, meanwhile, the problem that identity and position information of the vehicles in the traditional Internet of Vehicles architecture is leaked is solved, and the security of the vehicles is improved. And the security of vehicle privacy protection in the Internet of Vehicles architecture is improved.

The utility model provides a power equipment communication system, which comprises a coordinator, first power equipment and second power equipment, wherein the first power equipment and the second power equipment are connected in parallel to the output end of the coordinator; the coordinator comprises a zero signal detection circuit, a processor, a power supply output circuit and a communication signal input circuit; the zero signal detection circuit, the power supply output circuit and the communication signal input circuit are respectively connected with the processor. By adopting the scheme, two-way communication of the power equipment can be realized, the communication cost is reduced, and the communication robustness is improved.

This invention discloses a method for leading-edge signal detection and frame synchronization in the MAC layer of a battery cell pressure sensing network. By employing a frame start delimiter (SFD) leading-edge signal vector detection optimization algorithm, the efficiency and accuracy of leading-edge detection are improved. Algorithms such as sliding window analysis, noise likelihood function, and leading-edge likelihood function are used to accurately detect the leading-edge signal vector, further enhancing detection efficiency and accuracy. Simultaneously, the Bayesian likelihood ratio method is used for leading-edge signal vector detection, significantly reducing the false positive and false negative rates and increasing the reliability of the detection results. This invention enables rapid leading-edge signal vector detection and frame synchronization, improving the real-time performance of data transmission and making it suitable for applications requiring high real-time performance, such as lithium battery management systems. The method proposed in this invention can be widely applied to the MAC layer of battery cell pressure sensing networks, providing strong support for establishing more efficient and reliable sensor network communication.

This application discloses a communication method and a power equipment system for power equipment systems, belonging to the field of communication technology. The method is applied to a master control device that communicates with multiple slave devices, including: updating its own configuration parameters according to configuration information preset by a host computer; sending the configuration parameters to each slave device to update the configuration parameters of each slave device and establishing a communication link with each slave device; sending a sampling trigger command to the slave devices according to the communication link, so that the slave devices can sample and obtain sampling data according to the sampling trigger command; generating a pulse width modulation data command according to the sampling data uploaded by the slave devices, and sending the pulse width modulation data command to the slave devices to drive the slave devices to execute the pulse width modulation data command. This application realizes reliable communication between the master control device and multiple slave devices by constructing a communication method for the master control device and slave devices, thereby improving the collaborative control accuracy of the power equipment system.

The present invention provides a drone swarm networking measurement and control communication link and communication method, including airborne equipment and local equipment, the airborne equipment includes an airborne data terminal host and an omnidirectional antenna, and the local equipment includes a local data terminal host, a positioning module, and an omnidirectional and directional integrated antenna. The present invention adopts a time division multiple access, time division duplex system, a single-hop network, and a single-channel form of communication equipment. The measurement and control communication link and the inter-machine communication link work at the same frequency point, and the inter-machine communication, telemetry, remote control, and mission load information are compositely transmitted. In addition, the command and control node adopts a measurement and control communication form that combines directional antennas and omnidirectional antennas and works in time and stage, which simplifies the design of airborne communication equipment, realizes the remote transmission of telemetry, remote control, and mission load information, and maintains the inter-machine communication function.

According to the intelligent LED street lamp hardware system based on the wireless network, the networking technology that LED lighting is matched with multi-sensor feedback, wireless ZigBee-k and the 5G technology is adopted, the remote operation and maintenance capacity is provided, and the problems that an existing street lamp system is too large in light source power consumption, low in system intelligent control degree and weak in maintenance capacity are effectively solved; an overall scheme of a street lamp management center, a monitoring substation and a street lamp low-energy-consumption control terminal is designed, control background software is based on a 5G network, street lamp low-energy-consumption control terminal hardware equipment is connected with an intelligent control substation through ZigBee-k, the intelligent control substation processes and accesses a background management system through a 5G terminal at the same time, real-time interaction of data is achieved, and the street lamp low-energy-consumption control terminal is connected with the intelligent control substation. A ZigBee-k short-distance wireless communication technology is adopted between the monitoring substation and each street lamp low-energy-consumption control terminal and between the monitoring substation and each street lamp low-energy-consumption control terminal and each street lamp terminal, new broadband communication 5G is greatly improved in the aspects of data rate and delay capacity, interaction and application are enhanced, and the requirements of an intelligent street lamp system are met.

The present invention discloses an ACIM architecture circuit based on SRAM that can realize inter-core interconnection, which is composed of a plurality of computing core circuits that communicate with each other, and the computing core circuit includes a DPW-CIM macro circuit based on a dual-port parallel weight read (DPW) strategy and a near memory extensible communication module (NM-eCM) circuit. The DPW-CIM macro circuit reads and writes the weights in the storage unit in SRAM mode; and performs multi-bit multiplication and addition operations through a dual-port parallel weight read strategy in CIM mode. The NM-eCM circuit realizes an interconnection network between DPW-CIM macro circuits by means of a "priority" judgment mechanism and adjacent broadcast communications. This architecture circuit is designed to improve the work efficiency, data throughput and general scalability of the ACIM architecture used to accelerate neural network calculations, and is suitable for inference acceleration tasks of neural network models of different scales.

The invention discloses a robot joint module and a networked control system. The robot joint module comprises an actuating unit, a control unit and a relay unit, the control unit comprises a calculation module, a power driving module, a signal acquisition module, an I / O module, a power supply module, a wired communication module and a wireless communication module; the relay unit comprises a communication bridge module and a driving relay module. According to the invention, the problem of realizing system capability recovery through reconstruction of electrical and control networks when communication and driving faults occur is solved, and the working reliability of the robot system is improved.

The utility model relates to a wireless remote control device for portable electric lift, including transmitting part and receiving part, CPU processor I in transmitting part is connected button and indicating lamp module, wireless communication module I and boost module respectively, boost module connects battery, CPU processor II in receiving part is connected isolation power module, motor drive and protection module, wireless communication module II and state and trouble display module respectively, motor drive and protection module are connected with the brushless DC motor in portable electric lift, isolation power module connects lithium cell, and all are equipped with built -in PCB antenna in wireless communication module I and wireless module II, and state and trouble display module connects 2.4 inch OLED display screen. The utility model has the beneficial effect that: to brushless DC motor adopts FOC magnetic field orientation control form, and control precision is high, and the anti -interference ability is strong, can work stably in 1000KV strong electric field.

The invention relates to the technical field of instant messaging, and discloses an intelligent block chain point-to-point instant encryption communication method and system, and the method comprises the steps: obtaining all devices, and recording the devices as a first device, a second device,..., and an Nth device, acquiring the signal-to-noise ratio and the required time length of the signal transmitted between any two devices through a signal-to-noise ratio test strategy and a transmission time length test strategy; when a user sends a signal to target equipment, if the target equipment does not receive the signal, selecting a signal transmission path according to a signal transmission path selection strategy; if the signal is received, judging whether the signal meets the standard or not according to a first judgment strategy, if yes, directly sending the signal, and if not, selecting a signal transmission path and dynamically adjusting the signal in the path; the system comprises a signal transmitting module, a signal receiving module, a control module, a signal-to-noise ratio testing module and a transmission duration testing module.

This invention relates to the field of pneumatic conveying system monitoring technology, specifically disclosing a wireless communication pressure monitoring system. The system includes distributed intelligent data acquisition nodes, a signal acquisition center, and a field display terminal. The acquisition nodes are deployed at the pilot valve of the ash conveying pipeline, achieving accurate pressure signal acquisition and fault reporting through pressure sensing, filtering, and fault self-diagnosis. The signal acquisition center collects data via RS485 bus polling, processes the data using dual anomaly judgment logic, and uploads it to the DCS system via the Modbus protocol. The field display terminal supports manual and automatic dual-mode display, allowing for local display of data and alarm information. This invention adopts a bus-based distributed architecture, featuring simple wiring, long communication distance, and resistance to electromagnetic interference. It can monitor continuously for 24 hours, detect anomalies within seconds, and possesses both local and centralized monitoring capabilities. It is adaptable to harsh operating conditions of ash conveying pipelines with fluctuating dust, temperature, and humidity, avoiding monitoring omissions and significantly improving monitoring reliability and efficiency.

The embodiment of the invention provides a clock circuit, electronic equipment and an energy management system, in the clock circuit, a first power supply voltage signal provided by a power supply circuit can charge an energy storage circuit, and the voltage value exceeds the working voltage applied by a communication bus, so that the power supply duration of the energy storage circuit to a clock generation circuit is increased after the clock circuit is powered down, and the power supply efficiency is improved. The standby power duration of the clock circuit is increased, and the voltage conversion circuit is arranged to adjust the power supply voltage of the clock generation circuit or the voltage value of the output clock signal, so that the signal level of communication between controllers electrically connected with the clock circuit can be correctly identified when the clock circuit works normally, and reliable communication is ensured.

The present invention provides a minimalist optical chaos secure communication system for enhancing security, which relates to the field of chaotic secure communication, and includes: a transmitting end and a receiving end; at the transmitting end, by directly injecting binary random plaintext into a time-delay optical chaos source as a dynamic variable of the system to participate in the nonlinear evolution process of the system, a ciphertext signal is output through a chaotic signal generating device; a part of the ciphertext signal is fed back to the system to form a delayed closed loop, and the remaining part is injected into a communication channel for secure communication transmission. After the channel transmission, at the receiving end, the communicator divides the received interfered ciphertext signal into two paths, one of which is processed by a delay module to obtain a delayed signal, and the delayed signal and the other interfered ciphertext signal are injected into a demodulation module for demodulation, thereby demodulating the final plaintext signal. The beneficial effects of the present invention are: while effectively improving the security of the communication system, it also simplifies the system structure of the two communicating parties.

The utility model discloses a monitoring device for accumulated water in an inner groove of a coating cathode end of a glass coating system, which comprises a water detection sensor, a microprocessor and an audible and visual alarm, the water detection sensor is arranged in the inner groove of the coating cathode end, the output end of the water detection sensor is connected to the microprocessor, and the output end of the microprocessor is connected to the audible and visual alarm. The sensor is used for sending detected accumulated water data in the inner groove of the coated cathode end to the microprocessor; the output end of the microprocessor is connected to the audible and visual alarm, and the microprocessor controls the audible and visual alarm to work according to the accumulated water data. The utility model has the advantages that: the accumulated water in the inner groove of the coated cathode end is automatically monitored, and a prompt is given, so that the monitoring treatment is convenient; the accumulated water alarm can send an alarm reminding signal to a mobile phone through a central control room, so that reliable transmission of alarm notification information is realized.

The present invention relates to an MCU+FPGA control platform suitable for a standardized feeder terminal, comprising an MCU chip, an FPGA chip, an SDRAM chip, an Ethernet PHY chip, an Ethernet MAC+PHY chip, a NAND FLASH chip, a WDG watchdog chip, an ADC chip, an RTC chip, and a FLASH chip; the MCU chip communicates with the Ethernet PHY chip, the Ethernet MAC+PHY chip, and the NAND FLASH chip respectively, and the MCU end has an external WDG watchdog chip; the FPGA chip communicates with the ADC chip, and the FPGA end has an external RTC, which communicates with the FLASH chip via SPI; the MCU chip writes a configuration program into the FPGA external FLASH via the JTAG interface of the FPGA. The control platform of the present invention can fully meet the requirements of the primary and secondary equipment integration standardization specifications for feeder terminal equipment.

The invention relates to the technical field of unmanned aerial vehicles, in particular to a relay system for signal shielding bridge health state detection based on an unmanned aerial vehicle. And comprehensive bridge health state evaluation can be provided for bridge surface disease identification and structural vibration analysis in a complex environment with limited or invalid GPS signals. The system comprises a ground terminal, an unmanned aerial vehicle-mounted relay unit, a bridge structure information collection unit, a bridge surface disease information collection unit, a data storage unit and an unmanned aerial vehicle ground station. And through a multi-link automatic switching function of the ground terminal, stable communication between the unmanned aerial vehicle and the ground terminal is ensured in a signal shielding environment. The system can efficiently and accurately detect bridge surface crack and corrosion diseases, and combines vibration signals to analyze inherent frequency and damping ratio characteristics of a bridge so as to evaluate the health condition of a bridge structure. The multi-modal data fusion and intelligent analysis functions of the system are beneficial to finding potential structural hidden dangers of the bridge in advance, and the efficiency and reliability of bridge detection are improved.

The present application discloses a communication signal processing method, device, equipment and storage medium, which relates to the field of wireless communication physical layer transmission technology, including: the transmitting end determines a reference sequence and a spread spectrum sequence based on the waveform parameters and spread spectrum factor of the Gaussian minimum shift keying waveform of the communication signal; the spread spectrum sequence is matched with the reference sequence, and a spread spectrum sequence mapping table is constructed according to the corresponding correspondence; the original information sequence of the communication signal is shift-mapped according to the reference sequence and the spread spectrum sequence mapping table to obtain a spread spectrum sequence, the spread spectrum sequence is modulated, and the corresponding modulated signal is sent to the receiving end so that the receiving end can demodulate and despread the modulated signal. It can be seen that the present application can support non-spread spectrum and transceiver communications with different spread spectrum factors, and can more fully obtain the spread spectrum gain.

The present invention discloses a communication method and system, and relates to the field of computer technology. A specific implementation of the method includes: establishing a connection with a partner system based on a TCP / IP information flow interface; after successfully establishing the connection, transmitting messages with the partner system in a preset message structure, wherein, after receiving a confirmation message sent by the partner system, determining that the sequence number of the confirmation message sent by the partner system is the expected sequence number and that the confirmation message sent by the partner system can be processed at present, and then sending an affirmative response to the partner system. This implementation can ensure data integrity and fast consistency processing, after fault tolerance, it can quickly self-recover, simplify message encoding, can quickly detect abnormal devices, effectively release network resources, stable and reliable communication, ensure instruction sequence and reliability, high message interaction security, support multi-threading, reduce development complexity, and avoid unpacking and sticking.

The invention relates to a power supply relay protection method, a control device, a power supply device and a medium, and the power supply relay protection method comprises the following steps: comparing new data collected by each monitoring point of a whole grid-connected system with standard data in a database to find the abnormality of the new data, and analyzing a fault area according to the abnormality. According to the method, firstly, the model is established according to the monitoring point position, the upstream or downstream area of the relative monitoring point is quickly judged according to the operation data, and even the accurate position is distinguished by setting the threshold value, and meanwhile, reporting and notification of similar operation and maintenance point personnel are carried out, so that the problems of low troubleshooting efficiency and low troubleshooting cost are avoided. And meanwhile, electrical quantity monitoring and uploading are carried out on regional current and voltage monitoring equipment of a fault monitoring point, and specific data information is transmitted to the system for analysis and specific execution after secondary checking is carried out on frequency and power of a power grid in a local area.

The invention discloses an intelligent portal crane instruction issuing method and system based on a block chain. The method comprises the following steps: uploading a portal crane action instruction red line to a block chain network by using an intelligent contract technology of the block chain; facial features of a portal crane driver are collected in real time and compared with data of special equipment operating personnel in a person-certificate integrated image mode; performing automatic matching verification on the door machine action instruction passing comparison and a door machine action instruction red line by using an intelligent contract algorithm of the block chain, and sending an automatic matching verification result to an auditor for manual reinspection; receiving an auditing result of manual rechecking, and storing the door machine action instruction passing the auditing into a door machine action database; verifying the correctness of the door machine action instruction irregularly according to the information in the door machine action database; preset actions are executed in order according to the door machine action instructions in the door machine action database, and asymmetric encryption is conducted on the door machine action instructions and the door machine action information through the encryption algorithm of the block chain.

The present invention discloses a communication method using a true wireless Bluetooth headset, wherein a first headset and a second headset constitute a true wireless Bluetooth headset pair, wherein the first headset and the second headset communicate with each other using a private protocol, in which the number of times each Bluetooth channel of the first headset is interfered with is first counted and a first channel statistical table is obtained, and then the first channel statistical table is sent to the second headset, so that the second headset can convert the first channel statistical table into a first Bluetooth frequency hopping table, and then receive the second channel statistical table sent by the second headset to the first headset, and then convert the available channels in the second channel statistical table into a second Bluetooth frequency hopping table according to a preset rule, perform frequency hopping according to the second Bluetooth frequency hopping table, and send Bluetooth packet data to the second Bluetooth headset. The communication method disclosed in the present invention can effectively improve the communication efficiency and anti-interference performance between the first headset and the second headset.

A radar signal processing simulation platform and simulation method. A radar signal processing simulation platform and simulation method capable of reducing signal interference and enhancing communication stability are provided. It includes a radar display and control workstation and a signal processing server connected in communication, and also includes a signal generation and transmission unit; the signal generation and transmission unit includes a situation solving unit, a signal generating unit, a microwave unit and a data transmission unit; the data transmission unit includes FPGA1; the situation solving unit includes DSP and FPGA2; the signal generating unit includes three DRFMs, denoted as DRFM1, DRFM2 and DRFM3; the synthesizer is used to synthesize the target signal and the clutter signal into an echo signal and input it into DRFM2, and DRFM2 then outputs the echo signal to FPGA2; the FPGA2 is used to send the radar signal and the echo signal to FPGA1, and the FPGA1 is used to send the radar signal and the echo signal to the signal processing server. The present invention can effectively reduce signal distortion.