446 results about "Serial communication" patented technology

The invention discloses an unmanned aerial vehicle multi-technology fusion intelligent control method. The method comprises the following steps: establishing serial port communication between an airborne terminal and an unmanned aerial vehicle; the airborne terminal acquires model information by receiving a heartbeat packet actively sent by the unmanned aerial vehicle, and switches to a corresponding control protocol according to the model information for controlling the unmanned aerial vehicle; and the airborne terminal is used for dynamically monitoring the signal quality of the communication link and adaptively switching the optimal communication link. According to the intelligent control system and method provided by the invention, intelligent switching can be performed according to indexes such as signal strength, delay and stability, and an early warning value is set to deal with a sudden communication loss problem, so that the communication continuity and the data transmission reliability of the unmanned aerial vehicle in a task execution process are ensured.

The invention discloses a universal serial communication framing and de-framing method for external parameter configuration of an inertial sensor, which comprises the following steps of: dynamically defining a data frame structure by loading an external editable parameter file, including frame header byte content and position, various standard and non-standard data type codes of a data segment, a verification mode of a verification segment and frame tail parameters; in the framing process, the sensor data is converted into byte arrays according to a selected protocol, and complete data frames are assembled and output; and verifying the completeness of the frame header and the frame tail based on the same parameter file in the frame decoding process, executing verification calculation and analyzing the content of the data segment. According to the method, universal adaptation of different serial port communication protocols is realized, the problem of poor reusability of a traditional hard coding mode is solved, the communication processing efficiency and flexibility of the inertial sensing equipment are remarkably improved, and the method is particularly suitable for multi-protocol scenes such as fiber-optic gyroscopes and inertial measurement units.

The invention provides a vehicle-gauge-level dynamic equalization SerDes system and a working method, and belongs to the technical field of high-speed serial communication, and the method is characterized in that the system comprises an environment feedback module which collects temperature, cable impedance and common-mode noise data in real time; the dynamic equalizer is used for adjusting parameters of the pre-emphasis, the continuous time linear equalizer and the decision feedback equalizer based on the data acquired by the environment feedback module; the link health monitoring unit is used for counting the bit error rate through a hardware counter and triggering a self-repairing process; and the repair controller is used for executing a self-repair process which comprises redundant channel switching, transmission rate degradation and link retraining operation. According to the invention, the hardware-level environment adaptive equalization and millisecond-level self-healing capability of the SerDes link can be realized, and meanwhile, the redundancy design cost is reduced.

The invention relates to a design method and system of a small radio telescope antenna electromechanical device, and relates to the technical field of radio astronomy, and the design method comprises mechanical structure design, communication control design and man-machine interaction design, and comprises the design methods of structure optimization design, finite element analysis, manufacturing process optimization, modular virtual assembly and the like. The structural stability and the manufacturing and assembling efficiency of the antenna are effectively improved; data transmission among the servo motor driver, the azimuth pitching encoder and the motion controller is achieved through serial communication, data transmission between the motion controller and the main control computer is achieved through the Ethernet, and data transmission between the main control computer and the mobile terminal is achieved through the Internet of Things and the cloud server. By designing and optimizing control software interfaces of the fixed terminal and the mobile terminal, multi-terminal remote convenient control of the antenna is finally realized.

The invention discloses a mobile audio-visual cooperative unmanned aerial vehicle detection system, and belongs to the technical field of intelligent detection and automatic control. The system comprises a mobile ROS unmanned vehicle platform, an audio-visual perception module, an embedded processing unit and an execution mechanism. The mobile ROS unmanned vehicle platform comprises a motion control system, a serial port communication module and a wireless communication module; the audio-visual perception module comprises an infrared visual acquisition unit and a four-channel audio acquisition array and is used for acquiring infrared image information and acoustic signals of the unmanned aerial vehicle; the embedded processing unit comprises a multi-modal data fusion processor and a motion cooperation controller and is used for synchronously processing the infrared image information and the acoustic signal and generating a control instruction; the execution mechanism comprises a two-degree-of-freedom steering engine holder and a self-adaptive cruise system. According to the invention, through audio-visual cooperation and dynamic mode switching, a fixed detection scene is not needed, continuous tracking of the unmanned aerial vehicle and blind area complement detection can be realized, and detection continuity and accuracy are improved.

A serial communication system (1) comprises: n slave devices (21-28) having the same address; a master device (10); n switch ICs (41-48); and shift registers (31-32) capable of individually controlling ON / OFF of the n switch ICs (41-48). One clock signal line and one data signal line connected to the master device (10) respectively branch into n clock signal lines and n data signal lines, and are respectively connected to the n slave devices (21-28) via the n switch ICs (41-48). Said one clock signal line and one data signal line connected to the master device (10) further branch into and are connected to shift registers (31-32).

To provide a vacuum pump that reduces the number of pins used for data transmission and has high extendability, the vacuum pump includes a pump main body (100) that sucks and exhausts gas; a plurality of physical sensors (21 to 23) provided in the pump main body; and a connector (10) used for connection with an external device (200). The vacuum pump further includes: a detection circuit (56) that detects detection data from an analog signal output from each of the plurality of physical sensors (21 to 23); a signal conversion circuit (54) that converts the detection data into digital detection data as a digital signal; and a serial communication bus (33) that performs data communication with the external device (200) via the connector (10). The serial communication bus (33) outputs a serial signal including the digital detection data.

The invention provides an anti-interference serial port communication system and a working method thereof, and the method comprises the steps: obtaining a start-stop control signal of a motor, obtaining a communication interruption duration, and taking a moment when the start-stop control signal is obtained as a starting moment of a communication interruption period; caching the communication data to be sent to a preset buffer during communication interruption; judging whether a communication interruption duration is reached or not, and if so, sequentially sending the data cached by the buffer in sequence; wherein the step of obtaining the start-stop control signal of the motor comprises the step of obtaining the start-stop control signal output by the motor controller to the motor driving circuit. The invention also provides an anti-interference serial port communication system for realizing the method. According to the invention, the controller can be prevented from sequentially sending data when the motor is started or stopped, so that the influence of electromagnetic interference formed by a large current peak on the data sent by the controller is avoided.

According to some embodiments, a battery cluster controller includes a serial interface configured to receive waveform data and a rank over a serial communication bus, a processor configured to generate a switching parameter based on the rank and the waveform data, and a modulation unit configured with the switching parameter to generate a bridge configuration signal to control a bridge for selectively connecting a battery element to an output terminal to generate a first component of a waveform.

The invention relates to the technical field of wireless communication of the Internet of Things, in particular to a configuration management method of a low-power-consumption Bluetooth penetration module and a related device. According to the method, the working modes are dynamically switched according to the Bluetooth connection state. In the AT instruction configuration mode, receiving, analyzing and verifying an AT instruction through a serial communication interface; for the parameter setting instruction, immediately applying the modified parameters to the module and storing the modified parameters to the nonvolatile storage unit; in the AT instruction configuration mode, a real-time clock timer is configured by judging the idle state of the module and combining the preset task period, so that the module periodically enters the deep sleep mode until the timer is triggered and awakened, the deep sleep time of the module is prolonged to the maximum extent, the overall average power consumption is remarkably reduced, and the service life of the module is prolonged. And the cruising ability of the equipment in a battery power supply scene is greatly prolonged.

The invention belongs to the field of electricity, and particularly relates to a cable signal automatic switching device which comprises a machine shell, a touch screen, a signal switching box and a connector. The signal switching box is installed in the machine shell, the touch screen is fixed to the surface of the machine shell, and the connector is arranged on the side wall of the machine shell. The signal switching box comprises a main board, a relay board card and a mother board; the mainboard is provided with two 485 communication interfaces and a serial communication interface, one 485 interface is connected with the relay board card, the other 485 interface is used for remote communication, and the serial interface is connected with the touch screen; the relay board card is used for switching an input cable signal to an output A or an output B; the mother board provides power supply and physical fixing support for the mainboard and the relay board card. The device makes up the mode of manually switching cables in a laboratory. The device is efficient, reliable, convenient to operate and friendly in man-machine interaction, optimizes the cable switching means, and greatly improves the test efficiency and reliability when being applied to the test.

The invention provides a universal aviation cable detection device and method.The device comprises an industrial personal computer, an aviation cable core resistance value measurement host, a test cable and an aviation cable qualification self-judgment system.The measurement host comprises a power supply module, an output board card, an input board card and a power-on indicator light; the self-judgment system comprises a serial port communication module and a qualification self-judgment module integrated in an industrial personal computer. According to the working principle, a constant voltage source is applied to a measured aviation cable through the output board card, a voltage signal is collected through the high-resistance-state AD collection module, calculation and analysis are conducted through the qualification self-judgment module, and high-precision measurement of the resistance value of a cable core, automatic judgment of the line sequence state and intelligent quality evaluation based on a multi-stage configurable threshold value are achieved. Therefore, the problems of low core-by-core measurement efficiency and insufficient precision of a traditional universal meter are solved, and the automation degree and the reliability of aviation cable detection are remarkably improved.

This invention relates to the field of industrial automation and control network technology, and discloses a real-time synchronization method system for LonWorks networks based on digital twin variables. Applied to LonWorks fieldbus networks, it is implemented based on a heterogeneous node system consisting of a general-purpose processing module, a LonTalk protocol processing module, and a high-speed serial communication bus. The general-purpose processing module carries a manager, the LonTalk protocol processing module maintains standard LonWorks network variables and has a built-in LonTalk protocol stack, and the high-speed serial communication bus transmits DTVP data frames. This invention achieves a significant leap in node computing power, freeing nodes from the limitations of dedicated communication chips and allowing them to directly utilize the high performance of industry-leading general-purpose microcontrollers to easily handle complex control algorithms, real-time data filtering, lightweight artificial intelligence inference, and other complex tasks.

serial communications bus.20 25 28 73 31 24 D ec 2 02 5 A B S T R A C T 2 0 2 5 2 8 7 3 3 1 2 4 D e c 2 0 2 5 s e r i a l c o m m u n i c a t i o n s b u s . 400 Serial communications bus interface 220A 408A Upstream Serial communications receiver bus 412A 404A 410 402 Upstream transmitter Upstream control 414A Clock Upstream enable Lock-out Serial communications Downstream control control circuit bus interface 220B Electronic 404B 414B processor Downstream Downstream enable 408B transmitter 406B 3 / 5 Downstream Serial communications receiver bus 412B FIG. 4 20 25 28 73 31 24 D ec 2 02 5 2 0 2 5 2 8 7 3 3 1 2 4 D e c 2 0 2 5 b u s i n t e r f a c e 4 0 6 A 2 0 2 t r a n s m i t t e r U p s t r e a m c o n t r o l U p s t r e a m e n a b l e Downstream control c o n t r o l c i r c u i t b u s i n t e r f a c e E l e c t r o n i c p r o c e s s o r D o w n s t r e a m D o w n s t r e a m e n a b l e t r a n s m i t t e r D o w n s t r e a m

This invention relates to the field of communication technology, specifically to a method for implementing a virtual serial port based on Hook technology. The method includes the following steps: replacing functions of the serial port operation API to open, set, and close the serial port and transmit data over the network; compiling this into a dynamic link library; using the dynamic link library to obtain the addresses of the serial port operation API functions CreateFileW, ReadFile, and WriteFile in the host computer process space; constructing a JMP jump instruction; writing it at the beginning of the target API function to redirect to a custom Hook function during the call; the custom Hook function calls the original API functions as needed; and canceling the Hook writes back the original machine code and restores memory attributes, resulting in a switchable monitoring function. This invention solves the problems of traditional serial port implementations, such as easy conflicts when multiple programs compete for usage, difficulty in flexibly monitoring and debugging serial communication, inability to conveniently simulate specific serial port scenarios, and poor scalability and compatibility with new systems or hardware platforms.

Systems and methods directed to an electronic communications system extender device of a wired security surveillance communications network. The device includes a first transmitter configured to transmit communications over a first serial communications bus and a first receiver configured to receive communications over the first serial communications bus. The device also includes a second transmitter configured to transmit communications over a second serial communications bus and a second receiver configured to receive communications from the second serial communications bus. The device includes a processor configured to receive a communication from the first receiver from the first bus, transmit, via the second transmitter, the communication over the second bus in response to receiving the communication, and lock out, during transmission of the communication, the first transmitter from transmitting over the first serial communications bus.

The application provides a serial multi-chip communication device applied to a signal chain chip and a corresponding method. It relates to the technical field of chip serial communication and solves the problems of line design complexity and increased hardware resource occupation in the prior art. The device comprises: a chip select differential negative end of a master controller and a chip select input end of a first-level chip are interconnected; a second-level chip forms a chip select series connection structure; a slave chip select output end of the first-level chip and a chip select input end of a first second-level chip of the chip select series connection structure are interconnected; a serial differential positive end, a clock signal output end and a feedback signal input end of the master controller are respectively interconnected with a slave input end, a clock signal input end and a slave output end of the first-level chip and each second-level chip. The application can reduce resource consumption, realize access to different slave chips and is easy to adjust and expand.

The application provides a processing method, device, storage medium and system for serial machine communication, and belongs to the technical field of communication. The monitoring method comprises the following steps: storing element information corresponding to a plurality of ports by using a first queue pool; adding elements corresponding to one or more TCP ports in the plurality of TCP ports into a to-be-processed linked list, adding element information corresponding to one or more TCP ports with a cache mark into a preparation linked list, and receiving output information of the TCP ports in the preparation linked list; when the one or more TCP ports are connected, predicting I / O operations generated in a next process, and marking the process by using an asynchronous keyword. The application configures the to-be-processed linked list, the preparation linked list, the cache mark and the asynchronous keyword based on the coroutine technology, realizes processing of asynchronous communication of the serial machine, and does not have a time slice of context switching of the CPU, so that the CPU resource overhead is reduced.

The invention discloses a dynamic serial port communication coding and decoding method and system based on auto-negotiation data bit width, and relates to the technical field of communication, the method comprises the following steps: S1, a sending end carries out bit-level regrouping on an original byte stream according to the negotiation bit width N, and every N bits are packaged into a transmission unit; s2, the receiving end identifies the data frame according to the frame header identifier, and analyzes the coded data into a plurality of transmission units according to the bit width field in the frame; s3, the receiving end reads the sampling point in the receiving interrupt service program, and generates a local link quality parameter through run length detection; s4, the sending end counts the sending state of the sending end to generate a local link quality parameter, and transmits the local link quality parameter to the receiving end along with the next data frame to serve as an opposite-end link quality parameter; s5, the receiving end analyzes the data frame to obtain an opposite end link quality parameter; and S6, the sending end analyzes the response frame, and adjusts the negotiation bit width N according to the bidirectional link quality index so as to redistribute the transmission unit structure.

This invention relates to the field of AC servo system technology, specifically to an FPGA-based method and system for frequency division output of position feedback pulses from an AC servo serial communication encoder. The method includes the following steps: periodically reading encoder position feedback data and calculating the difference between the position feedback data read in the current cycle and the position feedback data read in the previous cycle; converting the difference in position feedback data into a uniformly distributed pulse signal PCLK within the encoder position feedback data sampling period; using the pulse signal PCLK as a trigger clock to perform DDA calculation on the required number of output pulses per revolution, changing the state of the quadrature output pulses each time an overflow occurs, thereby generating frequency-divided quadrature pulse signals A and B. This invention provides an FPGA-based method for frequency division output of position feedback pulses from an AC servo serial communication encoder, which can realize frequency division output of serial communication encoder position feedback pulses according to the requirements of a host device.

This invention belongs to the technical field of program control systems, specifically relating to an EtherCAT master station system based on Qt and a multi-task scheduling method. The system includes a human-computer interaction module, a task scheduling management module, an EtherCAT master station protocol stack function module, an XML slave configuration file parsing module, a network communication module, and a serial communication module. The human-computer interaction module includes real-time business display and control, online debugging of EtherCAT communication data, basic business configuration and modular debugging, and system authentication. The task scheduling management module includes system working status management, complex business data processing, and task scheduling. The EtherCAT master station protocol stack function module includes real-time data processing of the controlled object, business control logic management of the controlled slave station, EtherCAT master station initialization process, and interface implementation of the controlled object's business processing process. This invention significantly improves the development efficiency and system performance of the EtherCAT master station system, meeting the requirements of modern industrial control systems for real-time performance, stability, and user experience.

The present application relates to the technical field of fault type identification acceleration, in particular to a kind of multi-modal sound feature fusion's fluid transmission equipment fault classification acceleration method and system;After sound sensor collects fluid transmission component operation sound signal, pre-processing is removed interference noise;Time domain feature extraction module extracts multi-scale space-time feature by multi-scale time convolution fusion unit;Frequency domain feature extraction module is converted by FFT, amplitude and phase separation processing and IFFT restoration, and time domain feature after frequency domain processing is obtained;Dual-domain feature fusion module fuses dual-domain feature by real Gabor wavelet function, and then excavates deep feature by Transform module;Fault diagnosis module outputs fault classification result by convolution, fully connected and Softmax function, and hardware platform outputs recognition accuracy by UART serial communication.This application detects comprehensively, responds quickly, has strong stability, low power consumption, good portability, can be adapted to different environments, identifies multiple fault types, and can also be extended to other related fields.

This invention discloses a user-end beam control system for a KuKa dual-band multi-beam antenna, comprising: an FPGA module for receiving instruction information from a payload integrated electronics system, generating various control signals and sending them to the KuKa dual-band multi-beam antenna, and also for receiving telemetry information from the KuKa dual-band multi-beam antenna, integrating it into a telemetry data packet and sending it to the payload integrated electronics system; a clock management module for receiving a reference clock signal from an external frequency source and generating the operating clock required by the FPGA module; an interface module for providing a serial communication interface and serial driver, an LVDS control interface and driver, and a debugging interface; and a debugging module for debugging the software running within the FPGA chip. This invention can quickly and independently adjust the beam pointing of the Ku and Ka bands of the KuKa dual-band multi-beam antenna and acquire telemetry data from the KuKa dual-band multi-beam antenna in real time.

The application discloses a fan control method and device, a controller, a double-rotor fan, a product and equipment, relates to the technical field of heat dissipation, and the method comprises the following steps: when the first rotor and the second rotor of the double-rotor fan are in a serial communication control mode, sending a firmware upgrade instruction to the first rotor and the second rotor respectively through a serial communication bus, so that the first rotor enters a firmware upgrade mode and stops rotating, and the second rotor enters a clock signal speed regulation mode and continues to run; during the period when the first rotor is in the firmware upgrade mode, outputting a speed regulation clock signal to the second rotor through a clock signal line of the serial communication bus, so as to adjust the rotating speed of the second rotor; and sending firmware upgrade data to the first rotor through a data signal line of the serial communication bus, so that the first rotor performs firmware upgrade based on the firmware upgrade data. During the period when one rotor of the double-rotor fan performs firmware upgrade, the other rotor can still be subjected to effective rotating speed regulation and control.

The invention provides a pin multiplexing circuit of a data conversion chip. The pin multiplexing circuit comprises a voltage dividing module, a mode adjusting module and a pin multiplexing control module, the voltage division module is used for performing interval division on the power supply voltage of the data conversion chip and generating at least two reference voltage signals based on an interval division result; the mode adjusting module is used for comparing the reference voltage signal with an external input voltage signal and generating a mode adjusting signal according to a comparison result; and the pin multiplexing control module is used for starting or closing pin multiplexing according to the first mode adjusting signal. According to the invention, various serial communication protocols can be compatible without adding extra pins, and the minimum multiplexing of the pins is realized.

The application discloses a UART serial communication circuit and a voltage zero-crossing signal output method, and relates to the technical field of communication interfaces. The circuit comprises a communication circuit, a data strobe, a controller and a signal generator. The signal generator is connected with the data strobe, the data strobe is used for connecting a sending end, and the communication circuit is used for connecting a receiving end and the data strobe. The signal generator is used for sampling voltage on a three-phase circuit to generate a voltage zero-crossing signal and transmitting the voltage zero-crossing signal to the data strobe. The communication circuit is used for receiving instructions, receiving data or sending data. The controller is used for controlling the data strobe to transmit the voltage zero-crossing signal or the data to be sent to the sending end according to the instructions. The UART serial communication circuit in the application still transmits the voltage zero-crossing signal through the sending end on the basis of guaranteeing normal data receiving and sending, so that a pin does not need to be additionally increased, the area of a first chip applied by the UART serial communication circuit is reduced, and the cost is also reduced.