740 results about "Serial communication" patented technology

The invention provides a fault recovery method and electronic equipment, which can be applied to the field of computers. The fault recovery method comprises the following steps: collecting state information of a substrate management controller; when the state information represents that the substrate management controller breaks down, an isolation circuit connected between the processor and the substrate management controller is controlled, power supply to the substrate management controller is cut off, and the control right of a serial communication bus of the substrate management controller is taken over; target firmware mirror image data of the substrate management controller is obtained from a storage medium, and the target firmware mirror image data is used for restoring the function of the substrate management controller when it is detected that the substrate management controller breaks down; replacing original firmware mirror image data stored in a flash memory of the substrate management controller with the target firmware mirror image data through a serial communication bus so as to perform function recovery on the substrate management controller; and in response to completion of function recovery, controlling the isolation circuit to recover power supply to the substrate management controller.

The invention discloses a data acquisition system and method in a CT (Computed Tomography) system, the system comprises a control end and an acquisition end, a first FPGA (Field Programmable Gate Array) module and a second FPGA module are respectively arranged in the control end and the acquisition end, a forward error correction coding module and a data transmitting module are arranged in the first field programmable gate array FPGA module, and a forward error correction decoding module and a data receiving module are arranged in the second field programmable gate array FPGA module; wherein when the control end sends control command data to the acquisition end, the forward error correction encoding module encodes the control command data and then sends the control command data to the forward error correction decoding module through the data sending module, so that the second forward error correction module recovers the encoded control command data; and the data receiving module receives the recovered data. A data forward error correction technology is added to serial communication, so that a receiver does not receive wrong data, and the defects of related technologies are overcome.

The invention provides a system for controlling a manipulator in real time through hand electromyographic signals, which comprises a data acquisition unit, a terminal equipment unit and a tail end execution unit which are in communication connection through serial ports. The data acquisition unit comprises a data acquisition device and a signal acquisition module, and is configured to acquire a multi-channel electromyographic signal of a hand of a user in real time and perform signal conditioning and digitization so as to obtain a digital signal sequence representing a muscle activity intention of the user; the terminal equipment unit comprises a data preprocessing module, a model training module, a gesture recognition module and an instruction generation module; the tail end execution unit comprises a manipulator control unit which is in communication connection with the control output module and is configured to be used for receiving the manipulator control instruction and driving a manipulator to execute corresponding actions; in combination with a control method, the problems of insufficient real-time performance, poor hand action recognition precision and robustness, unstable control instruction, poor user adaptability and the like in the prior art are solved, and the man-machine interaction performance is improved.

The invention relates to the technical field of serial communication, in particular to a high-speed clock recovery method and device based on an adjustable delay chain, and the method comprises the steps: generating a recovery clock initial phase; a multi-stage programmable delay chain is adopted, and a phase-locked loop or delay-locked loop structure is combined, so that the initial phase of a recovered clock is finely adjusted and locked, and phase capture and clock edge alignment are performed; based on a multi-path recovery structure, a path with the minimum error is selected from the delay paths through a preset phase error detection mechanism to serve as an output channel; environment parameters of the environment are collected, parameters of the multi-stage programmable delay chain are dynamically adjusted, and high-speed clock recovery is completed. According to the method, the edge capture precision, the system jitter tolerance and the working frequency range of the recovered clock are remarkably improved, and then the phase consistency, the anti-interference capability and the overall data receiving reliability of the recovered clock in the high-speed communication system are effectively improved.

The invention discloses a cable GIS terminal stress-strain sensor and a strain monitoring method thereof, and belongs to the technical field of stress-strain monitoring, and the sensor comprises a sensor structure unit which comprises a metal housing, a fixed contact, a movable contact and a piezoelectric element; the signal processing unit is integrated in the integrated circuit shell and comprises a charge collector used for converting a charge signal of the piezoelectric element into an analog voltage signal; the pulse charge discharger is connected to the output end of the charge collector in parallel; the analog-to-digital converter is connected with the output end of the charge collector and is used for converting the analog voltage signal into a digital signal; the serial communication interface is used for outputting digital signals after analog-to-digital conversion; the mounting unit comprises a fixing hole position and an adhesive base which are arranged on the metal shell; the cable GIS terminal stress strain monitoring device is used for monitoring the stress strain of the cable GIS terminal in the operation process so as to reflect typical structure defects appearing in the cable GIS terminal, and online monitoring of the cable GIS terminal equipment is achieved.

The invention relates to the technical field of audio equipment testing, and discloses a parallel burning and Bluetooth testing frequency calibration method of a special chip for audio equipment. The method comprises the following steps of: establishing an independent serial communication channel with a plurality of chip chips through a computer control unit, and synchronously transmitting a firmware data packet to each chip storage unit; the high-precision radio frequency detection device is started to scan Bluetooth signal frequency offset values of all chips, and detection data is fed back to the computer control unit in real time; screening unqualified chips according to a preset frequency offset threshold, starting a dynamic frequency calibration program for the unqualified chips, and modifying internal capacitance parameters of the chips through a serial communication channel; repeatedly executing the frequency offset detection and capacitance parameter adjustment step until the frequency offset values of all the chips reach a standard range; and after completing the frequency offset calibration, executing a multi-channel Bluetooth performance test and outputting a test result report. According to the method, the chip firmware burning and Bluetooth test frequency calibration efficiency can be improved, the chip performance is guaranteed, and the method is adaptive to the batch production requirement.

The invention relates to a CAN bus control type PS I5 transceiver module which comprises a main control module, a communication interface is composed of a CAN communication module and a serial port, the CAN communication module is used for communicating with other equipment, and the main control module is connected with an upper computer through the serial port for communication; the power supply module reduces the direct-current 12V voltage to the working voltage of the single chip microcomputer to supply power to the main control module; the PS I 5 transceiver chip is respectively connected with the sensor and the main control module, and is used for receiving a Manchester encoding electric signal of a PS I 5 bus and sending an electric signal conforming to the PS I 5 standard to the sensor; the master control module is used for receiving and storing sensor data corresponding to different states and events. Compared with the prior art, CAN and serial communication are combined with a power-down storage state flag bit, so that the equipment can be compatible with a plurality of pieces of equipment for coordinating work. The non-PS I5 production equipment can be refitted into PS I5 sensor production equipment as long as the non-PS I5 production equipment is provided with a CAN communication interface, reading, configuration, analysis and diagnosis of a PS I5 sensor can be carried out, and the production link of the PS I5 sensor is effectively supported.

The invention provides a data compression method, apparatus and device, and a storage medium. The method comprises the steps of obtaining an original data stream transmitted through a serial port; determining the data type of the original data flow according to the original data flow; determining a corresponding target compression algorithm according to the data type; compressing the original data stream according to the target compression algorithm to obtain compressed data; the defects of low efficiency and even data expansion during data abrupt change in a fixed compression mode are effectively overcome, and the data transmission efficiency and the bandwidth utilization rate of serial port communication in a resource limited environment are remarkably improved.

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 rapid decoding method suitable for multi-component serial port data, which can be used for rapid data analysis of an aircraft which is complex in composition and adopts serial port communication during joint test, semi-physical simulation and external field test, and improves the data analysis efficiency. The decoding method has the advantages of being easy to use, fast in decoding, convenient to analyze and the like. The decoding method is characterized by comprising the steps that a serial port data decoding protocol is set (only when software is used for the first time or a communication protocol needs to be changed); setting a path where the to-be-decoded serial port file is located; parameters such as data formats needing to be stored are set; and sequentially performing data reading and decoding on the serial port file needing to be decoded, and storing the decoded data. The decoding method has the characteristics of simplicity in use, rapidness in decoding, convenience in analysis and the like.

A device connectable between a host computer and a computer peripheral over a standard bus interface is disclosed, used to improve security, and to detect and prevent malware operation. Messages passing between the host computer and the computer peripherals are intercepted and analyzed based on pre-configured criteria, and legitimate messages transparently pass through the device, while suspected messages are blocked. The device communicates with the host computer and the computer peripheral using proprietary or industry standard protocol or bus, which may be based on a point-to-point serial communication such as USB or SATA. The messages may be stored in the device for future analysis, and may be blocked based on current or past analysis of the messages. The device may serve as a VPN client and securely communicate with a VPN server using the host Internet connection.

A system on a chip for enabling communication between a building management system (BMS) device and a BMS network. The system on a chip includes a device interface, a network interface, and a processing circuit. The device interface is configured to connect the system on a chip to the BMS device via a serial communication link. The network interface configured to connect the system on a chip to the BMS network. The processing circuit is configured to identify and update an attribute of an equipment object associated with the BMS device that corresponds to a command received from the BMS network via the network interface and transmit a message to the BMS device via the device interface using the updated attribute of the equipment object.

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 relates to the technical field of high-speed serial communication, and discloses a SerDes link initialization method and device, and the method comprises the steps: firstly evaluating the operation states of a plurality of SerDes channels, and marking a corresponding health level for each channel; then, aiming at the channel with the health level reaching the standard, synchronously starting a single-channel alignment attempt and a multi-channel alignment attempt so as to obtain a channel with symbol alignment completed; and finally, according to the method, determining a grouping binding strategy for the successfully aligned channels according to the historical initialization data, and executing a binding operation. According to the method, the speed and adaptability of SerDes link initialization are improved by evaluating the health condition of the channel, parallelizing the alignment process and performing intelligent grouping by using historical data.

A multi-level inverter using cascaded H-bridge modules, where each module can balance its at least two charge storage elements by means of voltage equalization. Modules are arranged in series into at least one cascade inverter phase with optional center taps, and modules communicate with a control unit by being addressed over at least one serial communication bus. Additional features that can be included in embodiments are the configuration of modules to react to multiple specific addresses in order to increase the maximum output voltage slew rate, metal circuit breaking springs to provide fusing within modules, and the ability to interconnect multiple physically distinct inverters into a single unit. This inverter is predominantly intended for electric vehicle applications, and the optional incorporation of a switching array allows the possibility for power transfer to or from a wide range of voltage sources including other inverters.

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 discloses a serial port communication method based on a browser. The method comprises the following steps: requesting a user to authorize to access a serial port device through a navigator.series. Request Port (); the method comprises the following steps: creating a serial port control type instance by constructing a function constructor, and configuring indexes, a baud rate, a data bit, a stop bit and a check bit parameter; calling an openPort () method to open a serial port, and introducing configuration parameters to establish connection; the method comprises the following steps of: acquiring a flow reader through a port.readable. GetReader (), establishing a read-write lock, analyzing return data according to a read type parameter, judging the type of a sent instruction according to the write type parameter, automatically converting instruction data, acquiring the flow reader through the port.readable. GetReader (), establishing the read-write lock, analyzing the return data according to the read type parameter, and calling the port.relayLock () to release the read-write lock after the data is received and transmitted; and instantiating the serial port control component in the Web page, and dynamically managing the connection state and the data flow. According to the invention, serial port communication can be realized only by opening the browser without installing extra software; pure front-end implementation is realized, and a back-end server or a local program is not needed; and the method accords with the modern Web standard and has strong future compatibility.

A serial communication apparatus is provided. The serial communication apparatus may include a transmitter to transmit data by outputting an output signal, and a collision detection circuitry operatively coupled to the transmitter to receive the output signal. The collision detection circuitry is to receive an input signal from an input buffer, compare the input signal and output signal, and provide a collision indication signal in response to a difference between the output signal and the input signal.

Embodiments of the present application provide a multi-serial communication scheduling method and system, electronic equipment and storage medium, relating to the technical field of serial communication. The method comprises: obtaining a serial switch instruction, the serial switch instruction carrying the station information where the execution device is currently located and the serial number of the execution device; obtaining the serial number of the control device of the current station in the preset mapping relationship library according to the station information where the execution device is currently located; the mapping relationship library comprises the mapping relationship between the station information and the serial number of the control device; establishing the binding relationship between the serial number of the execution device and the serial number of the control device of the current station; the binding relationship is used to realize the communication between the execution device and the control device of the current station. Thus, through the serial number dynamic binding mechanism, the operation of frequent disconnection and reconnection of the serial in the traditional method is avoided, the communication cost is reduced and the serial switching time is shortened, and the communication efficiency and stability are significantly improved.

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 serial port communication server supporting multi-master and multi-slave parallel transceiving and a communication method, and relates to the technical field of serial port communication. Parallel or time-sharing data transceiving between the at least one host device and the at least one slave device through the shared serial communication path is realized; the server comprises a plurality of communication interfaces used for connecting a host device and a slave device; the central processing unit is used for receiving read or write instructions from one or more host devices; managing and scheduling the instruction according to preset logic; forwarding the processed instruction to target slave equipment through a corresponding communication interface; receiving response data from the slave equipment; and the response data is accurately sent back to the original host equipment which initiates the instruction. According to the invention, the concurrency capability, reliability and flexibility of the communication system are obviously improved.

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.

The utility model discloses a serial communication interface switching circuit and electronic equipment, and belongs to the technical field of serial communication. A voltage sampling circuit samples the voltage of a first serial communication signal to output a sampled voltage; the control circuit is used for outputting a first control signal in response to the sampling voltage located in a first voltage interval and outputting a second control signal in response to the sampling voltage located in a second voltage interval; the communication circuit is used for converting the first serial communication signal into a second serial communication signal according to the first control signal, or converting the first serial communication signal into a third serial communication signal according to the second control signal; the control circuit is also used for executing corresponding actions based on the second serial communication signal or the third serial communication signal; wherein the second serial communication signal is based on an RS485 communication protocol; the third serial communication signal is based on an RS232 communication protocol; therefore, the size of the serial communication interface switching circuit is reduced, the hardware cost is reduced, and the use convenience and reliability 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).

The invention belongs to but not limited to the technical field of fuel cells, and particularly relates to a hydrogen fuel cell EIS measuring device and method based on DIBS, and the device comprises a main control circuit, a voltage sampling and conditioning circuit, a current sampling and conditioning circuit, a DAC injection circuit, an auxiliary power supply circuit, a display circuit, and a serial communication circuit. The main control circuit is respectively connected with the DAC injection circuit, the voltage sampling and conditioning circuit, the current sampling and conditioning circuit, the auxiliary power supply circuit, the display circuit and the serial communication circuit, and the control module selects STM32F429 as a main control chip and is connected with the voltage sampling and conditioning circuit, the current sampling and conditioning circuit, the DAC injection circuit, the display circuit and the serial communication circuit; the auxiliary power supply circuit is connected with the main control circuit, the DAC injection circuit, the voltage sampling and conditioning circuit, the current sampling and conditioning circuit, the display circuit and the serial communication circuit.

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 utility model relates to the technical field of communication gateways, and specifically discloses an electric power intelligent data communication gateway machine, comprising a casing, a signal transmit-receive indicating lamp panel installed on the front side surface of the casing, a port panel arranged on the rear side surface of the casing, and a connection established between the port panel and a mainboard in the casing; the port panel is sequentially provided with a video signal transmission interface, a USB interface, a network port, a serial communication interface, a digital signal output port and a power supply interface from left to right, the mainboard is provided with a PCI slot and a hard disk storage interface which are used for expanding modules, the PCI slot is connected with a network card expansion card and / or a serial port expansion card, one side of the mainboard is provided with a radiator, and the other side of the mainboard is provided with a power supply interface. The cold end of the radiator is connected with the mainboard, and the heat dissipation end of the radiator is arranged on the outer side of a shell body of the machine shell. According to the utility model, the applicability of the device in the electric power field can be improved, the stability and reliability of the overall operation of the device are guaranteed, and the defects of insufficient expansibility and flexibility are effectively solved.