17 results about "Profibus" patented technology

The invention discloses a slave station data processing method and system of a process field bus based on an FPGA, a storage medium, electronic equipment and a computer program product. The slave station data processing method comprises the following steps: receiving slave station data with a preset rate from a slave station of a process field bus based on an FPGA module; acquiring slave station data in the FPGA module through the first processing module; determining the priority of the slave station data in the first processing module based on a preset rule; receiving the slave station data in the first processing module through a second processing module according to the priority of the slave station data and a preset high-speed bus; and acquiring and analyzing the slave station data in the second processing module through a preset analysis module.

The invention discloses a hydropower station bus communication quality assessment method, equipment, a medium and a product, and relates to the technical field of industrial bus communication quality assessment, and the method constructs a four-dimensional assessment index system covering a physical layer, a link layer, an application layer and an environment layer for hydropower station multi-protocol and severe environment scenes. Extracting time-frequency domain features of a physical layer through wavelet packet transformation, and combining link layer statistics, application layer semantics and environmental interference features; optimizing a feature fusion weight by adopting improved PCA dimension reduction and a multi-head attention mechanism; and constructing an improved random forest model in which an environment interference weight coefficient is introduced, and carrying out classification evaluation on the feature matrix. According to the method, the problems that in the prior art, evaluation indexes are single, and protocol semantics and environmental interference are not considered are solved, the evaluation accuracy rate reaches 98.5% or above, various communication hidden dangers can be accurately recognized, and the method is suitable for various bus protocols such as Modbus and Profibus DP.

The invention discloses a steam generator liquid level control system verification platform based on hardware-in-the-loop simulation, and belongs to the technical field of nuclear reactor control. The invention aims to solve the problem of inaccurate description of physical equipment characteristics in the existing simulation technology. The platform comprises a DCS control system, a controlled device, an industrial control computer and a data communication network. The DCS control system comprises an upper computer, a Siemens S7-400 controller and a Siemens ET200M distributed I / O system, the controlled device is a Speedgoat real-time simulation platform carrying a steam generator simulation model, and the data communication network is composed of an industrial Ethernet and a PROFIBUS field bus. The platform supports a rapid control prototype and hardware-in-the-loop simulation dual mode, is compatible with PID and an intelligent control algorithm, has the functions of data storage, visual monitoring and the like, can accurately simulate actual working conditions, realizes full-process coverage from design to verification, improves simulation credibility and research and development efficiency, and provides a reliable test environment for steam generator liquid level control research.

The invention relates to the technical field of industrial automation control, and discloses a slave station equipment configuration method and device and a related product. The method is deployed on an upper computer in a distributed control system, and the distributed control system further comprises a controller and a Profibus master station card. The method comprises the following steps: generating a slave station configuration file based on a general station description file and Profibus bus communication parameters of to-be-configured slave station equipment; establishing network connection among the upper computer, the controller and the Profibus master station card based on the IP address of the controller and the IP address of the Profibus master station card; the slave station configuration file is uploaded to a Profibus master station card; and sending a restart command to the Profibus master station card to enable the Profibus master station card to load the slave station configuration file and take effect. The slave station configuration scheme does not depend on DCS digits; a third-party frame or container does not need to be installed; and the generation and downloading of the configuration file are integrated on a unified platform, so that the configuration efficiency is greatly improved.

The application discloses a kind of based on bus communication's stacker-reclaimer remote fault diagnosis method and system, it is related to coal conveying system technical field, including: by installing sensor and data acquisition device on stacker-reclaimer, the operating parameter of equipment is collected in real time;Data is transmitted to auxiliary machine control room using Profibus bus communication mode, builds fault diagnosis platform on auxiliary machine control room server, realizes fault early warning and analysis, provides fault information.The remote fault diagnosis method based on bus communication provided in the application improves the reliability of equipment, reduces the failure rate, and ensures the stable operation of the coal conveying system. Remote monitoring and fault diagnosis are realized, labor cost is effectively reduced, and work efficiency is improved. The fault elimination time is shortened, the impact of equipment downtime on production is minimized to the greatest extent, and the overall operation efficiency of the system is improved.

The invention provides a field bus data receiving and decoding method, and relates to the technical field of data processing. The method comprises the following steps: receiving petrochemical field bus data in real time, and further determining a lead code, a start delimiter, an end delimiter and effective data in sequence; the Manchester decoding module is used for performing Manchester decoding on valid data, sending the decoded data to the UART interface of the single chip microcomputer, performing Manchester encoding on the data received by the UART, and outputting the data to the field bus MAU interface through the SPI interface of the single chip microcomputer. According to the invention, the current situation that the development of the communication interface of the field bus transmitter needs to depend on a special field bus communication controller chip is solved, and meanwhile, two field buses, namely a foundation field bus and a PROFIBUS PA, are compatible. A hardware interface is simplified based on the unvarnished transmission function of the UART, a complex memory bus interface is not needed, user type selection of a single-chip microcomputer is facilitated, the development difficulty of a field bus transmitter can be reduced, and the cost and product miniaturization are further reduced.

The invention discloses an unloader intelligent feeding control system and method based on multi-mode deep learning, and belongs to the technical field of port transportation equipment control. The control system comprises a multi-modal data fusion module, a data optimization module, a deep learning prediction module, a model training optimization module, a dynamic control module and a system integration module, data are collected through a radar, a strain gauge and an ultrasonic multi-modal sensor, after self-adaptive particle filter optimization, the data are input into a ResNet-LSTM spatiotemporal feature integration model to predict the feeding amount, and the feeding amount is calculated through the ResNet-LSTM spatiotemporal feature integration model. And an AdamW optimizer is combined with a cosine annealing strategy to train a model, finally, the frequency of the feeder is dynamically adjusted through a PPO algorithm, and accurate regulation and control are achieved through an industrial Ethernet platform and a Profibus-DP protocol. The control method is executed according to the steps of data acquisition, optimization, model construction, training, dynamic control and system integration. The technical problems that in traditional unloader feeding control, a sensor is prone to interference, prediction lags behind, labor is relied on, and energy consumption is high are solved.

The invention relates to the technical field of industrial automation testing, and discloses a PROFIBUS bus gateway module communication testing method and related equipment. The method is applied to a PROFIBUS bus gateway module communication test device, and comprises the following steps: a first control group responds to a test instruction and configures a gateway module group based on a preset communication parameter to obtain a test communication parameter; and the test software in the second control group configures attempt working parameters for the drive program in the PROFIBUS bus receiving group. And when the channel state is open, the driving program acquires a logic level sequence of the PROFIBUS bus group, and realizes self-matching of test communication parameters of the gateway module group based on the trial working parameters and the logic level sequence to obtain target communication parameters, so that the second control group controls the PROFIBUS bus equipment group to communicate with the gateway module group according to the target communication parameters. Therefore, automatic and repeatable communication testing is realized.

This utility model relates to the field of cable connector technology, specifically a PROFIBUS bus cable intermediate connector device. It includes a lower sealing box and an upper sealing box rotatably mounted on the surface of the lower sealing box. Both sides of the upper sealing box surface are threaded with housing screws, and both sides of the lower sealing box surface have screw holes for mates with the housing screws. A cable shielding connection groove is fixed within the lower sealing box cavity. This utility model utilizes a reliable cable connector connection method, solving the difficulty of PROFIBUS bus cable misconnection and addressing the problem of having to replace the entire PROFIBUS bus cable due to partial cable damage in complex environments. It significantly increases the difficulty of replacing PROFIBUS bus cables in certain areas, greatly reduces PROFIBUS bus cable waste, and ensures the reliability and stability of the automated communication system. This tool is easy to use, compact, flexible, and has a high protection level, making it suitable for any production environment and potentially widely adopted in the industry.

The invention is suitable for the technical field of long-distance automatic control, provides a communication network construction method for a compressor in a large-scale helium low-temperature system and a communication network, and aims to solve the problem that the transmission rate of PROFIBUS DP communication cannot meet the rate requirement of automatic control of the large-scale helium low-temperature system after the distance exceeds 400 meters. Combining optical fibers with a PROFIBUS DP network is expected to expand the effective transmission range. And through the matching arrangement of the terminal resistors, the situation that the resistance of the whole network terminal is increased due to the addition of the RS485 repeater is reduced, and communication hardware faults are avoided. The effective transmission distance of PROFIBUS DP communication is effectively improved, and the technical effects of automatic control of a large helium low-temperature system and stable operation of a communication network are achieved.

The invention relates to a cross-system cooperative communication system and method based on a multi-serial-port server, and relates to the technical field of distributed control system communication, the device comprises a multi-serial-port server main body, a serial port adaptation module, a protocol conversion module, a data scheduling module, a DCS interface adaptation module, a redundancy backup module and a fault diagnosis module; according to the method, cross-system cooperative communication is realized through serial port equipment access adaptation, multi-protocol unified conversion, DCS priority scheduling, dual-computer redundancy backup and fault self-healing. The system supports expansion of multiple types of serial ports such as RS232 / 485 / 422 and the like, is compatible with industrial protocols such as Modbus, Profibus, OPC UA and the like, can be seamlessly connected with peripherals such as a DCS main controller, a PLC, a sensor, an actuator and the like and DCS subsystems of different manufacturers, the data transmission delay is smaller than or equal to 10 ms, the fault switching time is smaller than or equal to 500 ms, the reliability, the real-time performance and the expansibility of cross-platform collaboration of the DCS system are remarkably improved, and the system is suitable for industrial control scenes such as chemical engineering, electric power, metallurgy and the like.

Modular sensor and system platform for measurements, cleaning and calibration in analytical, gas temperature, pressure measurement, flow measurement and level measurement technology. - with integrated Ethernet technology Advanced Physical Layer (APL) and Single Pair Ethernet (SPE) as well as a modular electronics hardware and electronics software platform for measurement parameters, cleaning / calibration systems and service systems in liquid and / or gas analysis and / or temperature and / or pressure measurement technology and / or flow measurement technology and / or level measurement technology. - with integrated fieldbus Ethernet technology APL and / or SPE, PROFINET etherCAT, Ethernet TCP / IP, Ethernet UDP / IP and other similar and / or adapted fieldbus protocols, e.g. I / O-Link, USB, for potentially explosive (IECEX, ATEX, FM) and / or non-hazardous (non-EX) environments, - with direct connection option to programmable logic controllers (PLCs) and / or input / output units (I / Os or remote I / Os) of established system manufacturers, via fixed cable connection, implemented as a 2-wire and / or multi-wire connection, copper and / or fiber optic connection, and / or wireless connection, WLAN and / or Bluetooth as well as WirelessHART. - with direct connection option to PCs for explosion-hazardous and non-explosion-hazardous environments via USB and / or via interface or , USB modem for sensor-side Ethernet APL and / or SPE and / or PROFINET and other sensor-side fieldbuses, e.g. I / O-Link, PROFIBUS DP / PA or or FF, or HART-IP, or HART 4mA and specially adapted fieldbuses (where the modem can be used for explosion-hazardous and / or non-explosion-hazardous environments). - operable with standardized user interfaces, such as PACTware-FDT / DTM, and / or common field communicators, e.g. Emerson 475 Field Communicator for FF and HART or other systems from established manufacturers, or apps or application software for mobile operating systems, such as iPhone and / or PC, laptop with different operating systems (e.g. Apple, Windows and the like) and / or Visual Basic with Visual Basic XML Generator (which generates Simple Visual Basic Code to Read & Write XML Data and uses libraries for C++, Oracle Java, VB .Net, Silverlight, VB6).

The invention discloses a protocol adaptive identification method and an IO data acquisition device.The protocol adaptive identification method is applied to the IO data acquisition device, the IO data acquisition device comprises an RS-485 interface, a Profibus protocol stack and a Modbus protocol stack are arranged in the IO data acquisition device, and the protocol adaptive identification method comprises the steps that when the RS-485 interface is kept in a receiving enabling state, the Profibus protocol stack and the Modbus protocol stack are connected with the RS-485 interface; the method comprises the following steps: monitoring a data frame on a communication bus in real time to obtain an original data stream, analyzing the original data stream to extract protocol features, performing protocol matching on the protocol features and a pre-stored Profibus feature library and Modbus feature library to confirm a protocol state, and activating a target protocol stack according to the protocol state to enter a protocol response state, the target protocol stack comprises a Profibus protocol stack and a Modbus protocol stack. According to the method, the risk of communication faults caused by manual configuration errors can be reduced, and the overall reliability and availability of the system are improved.

This invention provides a data communication method and circuit for communication between an EtherCAT slave station and a PROFIBUS DP slave station. The data communication method includes: the EtherCAT slave station having an SPI slave device, and the PROFIBUS DP slave station having an SPI master device; the PROFIBUS DP slave station acquiring an enable signal from the EtherCAT slave station, wherein the enable signal is at least one of an interrupt signal, SYNC0, and SYNC1; and enabling the SPI master device according to the enable signal, causing the PROFIBUS DP slave station to send a character of a threshold number of bits to the EtherCAT slave station via the SPI master device, and the SPI slave device synchronously returning a transmission data of the threshold number of bits to the PROFIBUS DP slave station. This method improves the reliability of network data transmission.

This invention provides a method for receiving and decoding fieldbus data, relating to the field of data processing technology. The invention receives petrochemical fieldbus data in real time, then sequentially determines the preamble, start delimiter, end delimiter, and valid data. The valid data is then Manchester decoded and sent to the microcontroller's UART interface. The data received from the UART is then Manchester encoded and output to the fieldbus MAU interface via the microcontroller's SPI interface. This invention solves the current situation where fieldbus transmitter communication interface development relies on dedicated fieldbus communication controller chips, while being compatible with both Foundation Fieldbus and PROFIBUS PA fieldbuses. The UART-based transparent transmission function simplifies the hardware interface, eliminating the need for complex memory bus interfaces, making microcontroller selection easier for users, reducing the development difficulty of fieldbus transmitters, further reducing costs, and enabling product miniaturization.

The present invention relates to a remote AI monitoring and control unit designed for industrial automation. This unit integrates multiple communication protocols, advanced artificial intelligence (AI) capabilities, and enhanced security features to autonomously or semi-autonomously monitor and control industrial processes. The unit supports a wide range of communication protocols, including MQTT, USART, CAN bus, I2C, SPI, Modbus, Profibus, DeviceNet, EtherNet / IP, CANopen, PROFINET, BACnet, DNP3, and HART, ensuring seamless interoperability with various industrial devices. It features adaptive communication, predictive maintenance, anomaly detection, and edge AI processing. Enhanced security is achieved through blockchain integration, AI-based threat detection, and multi-layered encryption. The unit also incorporates energy-efficient operation with energy harvesting and AI-optimized power management. An augmented reality (AR) interface provides real-time data visualization and remote assistance. The modular and scalable design allows for easy customization and expansion, while a user-friendly software interface offers customizable dashboards and AI-driven insights.

An adapter for an automation field device comprises a first communications interface designed for linking to a HART or 4-20 mA communications loop; a second communications interface designed for linking to a Foundation Fieldbus or Profibus PA Fieldbus based on Manchester Bus Powered transmission technology; an electronics unit with operating software that instructs the electronics unit to convert HART or 4-20 mA telegrams sent by the field device and incoming at the first communications interface into Foundation Fieldbus- or Profibus PA-compatible telegrams and to output same via the second communications interface, and / or to convert Foundation Fieldbus or Profibus PA telegrams incoming at the second communications interface into HART- or 4-20 mA-compatible telegrams and to output same via the first communications interface; and a power supply unit designed to tap electrical energy from the Foundation Fieldbus or Profibus Fieldbus via the second communications interface.