234 results about "Industrial communication" patented technology

The invention provides a cross-protocol identification data intelligent analysis middleware method and system. The method comprises the following steps: taking multiple industrial communication protocol identifiers in advance to form a metadata set, and constructing a protocol feature element model library containing a non-standard protocol feature template; a programmable logic device is introduced, physical layer signal waveform characteristics are matched, and corresponding communication protocol stacks are dynamically switched at a hardware level according to a matching result; receiving a communication data stream through an electric domain processing unit of the programmable logic device, and generating a protocol analysis logic sequence in combination with a state transition rule of the meta-model library and a mode matching rule of the protocol stack; performing combined operation on the structured feature template and the analysis logic sequence to generate an executable cross-protocol data analysis rule; and when unknown protocol characteristics are detected, triggering dynamic reconstruction of the template, so that the analysis rule is adapted to a newly added protocol. According to the technical scheme provided by the invention, the protocol compatibility development cost in an industrial multi-protocol scene is remarkably reduced.

The invention relates to the technical field of industrial communication networks, in particular to a method for quickly forwarding messages from a PCIE (Peripheral Component Interface Express) interface to a WIA (Wireless Interface Architecture) interface, which comprises the following steps of: simultaneously receiving PCIE messages and WIA-FA protocol messages through a hardware logic circuit; analyzing the message in a data link layer to obtain an analysis result comprising data load and address information; packaging the analysis result according to a pre-configuration rule to generate a data frame conforming to a target protocol; and constructing a sending descriptor for the generated data frame, and sending the data frame from a corresponding interface through a direct memory access mechanism. According to the method, parallel analysis and protocol conversion of messages are achieved through a hardware logic circuit, fast address conversion is achieved through a pre-configured address mapping table, and zero-copy data transmission is achieved through a direct memory access mechanism. According to the invention, software protocol stack processing is replaced by a hardware processing flow, so that communication delay and CPU resource consumption are effectively reduced.

The invention discloses a PON-based multi-protocol communication method and device, and the method comprises the steps: distributing a corresponding internal scheduling time slot to each network protocol processing unit for data uploading to each network protocol processing unit when a data processing module detects that the network protocol processing units connected with each field bus device have to-be-uploaded service data; and when one internal scheduling time slot is used up, interrupting the uploading of the service data until the next internal scheduling time slot allocated to the internal scheduling time slot is recovered from interrupting the uploading of the data. And the PON module monitors a global scheduling time slot allocation instruction issued by the optical line terminal in real time, converts an uploaded data frame into an electric signal, transmits the electric signal to the optical module through an internal link, converts the electric signal into an optical signal through the optical module in an allocated global scheduling time slot, and uploads the optical signal to the optical line terminal through an optical distribution network. Real-time performance and orderliness of transmission of service data in multiple field bus devices in a PON network are achieved, the requirement of industrial communication for data transmission is met, and transmission resource distribution is optimized.

The invention relates to the technical field of industrial communication protocol analysis, in particular to a protocol semantic matching analysis method based on reinforcement learning, and the method comprises the steps: constructing an industrial interaction environment containing industrial control equipment, a communication module and a protocol simulation assembly, defining a state space containing a flow attribute and a communication state, field processing, semantic annotation and dependency configuration related action space are carried out; calculating a reward value through a multi-level reward function of dynamic weight adjustment; based on the preprocessed multi-source protocol data set, adopting a Transform and graph neural network dual model to pre-train and generate a template library, and embedding an intelligent agent state processor; the intelligent agent updates the strategy after state processing, action distribution output by the strategy network, verification and execution of the action executor and interaction with the environment; and storing the interaction experience for iteration, and finally outputting protocol structure analysis, field classification and abnormity prompt information. According to the method, low-manual-dependence automatic analysis, unknown protocol self-adaptive adaptation and high-precision semantic matching can be realized.

The invention relates to the technical field of edge computing, in particular to an industrial control algorithm self-learning optimization system and method based on cloud-edge collaboration, and the system comprises a cloud platform at a cloud side, edge nodes at an edge side, and controlled industrial equipment at an equipment side. One cloud platform is used for receiving and managing a plurality of edge nodes; the cloud platform comprises an Internet of Things communication service module; an algorithm management service module; a distributed task scheduler; an edge node management service module; the edge node on the edge side comprises an industrial communication service module; and an algorithm service container. According to the invention, through a cloud-side cooperation mode, computing power resources of the cloud are utilized, autonomous learning training of a machine learning algorithm for industrial equipment optimization control is realized, and the machine learning algorithm can be automatically updated and deployed to the edge computing equipment, so that the industrial control algorithm can be autonomously optimized along with data accumulation, and the optimization efficiency is improved. And when the production working condition is greatly changed, timely training updating and deployment application of the algorithm can be realized.

The invention relates to the technical field of industrial control, and discloses an industrial communication protocol adaptation method and system based on OpenHarmony. The method comprises the following steps: performing distributed soft bus deployment on a plurality of industrial devices in an industrial control network to obtain a distributed device connection architecture; carrying out multi-protocol adapter loading on the industrial automation runtime service of the distributed equipment connection architecture to obtain a multi-protocol runtime service instance; performing communication protocol identification and configuration on the plurality of industrial devices according to the multi-protocol runtime service instance to obtain standardized device data; and establishing a data transmission channel according to the standardized device data, and performing global state synchronization and cooperative control instruction distribution on the plurality of industrial devices to generate a distributed cooperative control network. The deployment and maintenance work of the industrial control system is simplified, the accuracy and consistency of system configuration are improved, the risk of manual configuration errors is reduced, and the development cost and maintenance complexity of industrial application are reduced.

The invention relates to the technical field of industrial communication and Internet of Things, in particular to an IO-Link gateway system and method for heterogeneous protocol unification and edge enabling. Comprising a hardware layer, a protocol adaptation layer, a data processing layer, an intelligent computing layer and a communication interaction layer which are connected in sequence to achieve standardized conversion and edge intelligent processing of heterogeneous industrial data, and data time sequence consistency and system operation stability are guaranteed in the whole process. According to the invention, a plurality of heterogeneous industrial protocols are downwards and uniformly mapped to a technical path of an IO-Link international standard, and heterogeneous data are converted into a standard IO-Link object dictionary at a gateway level, so that field devices of different manufacturers and different protocols can carry out data interaction with a uniform and semantic-rich information model; therefore, plug-and-play of data is realized in the equipment access layer, and a solid foundation is laid for constructing an integrated industrial Internet of Things system.

The invention discloses a vehicle-mounted CAN bus anti-interference communication system and method based on photocoupling, and the system comprises an anti-interference communication system frame, the anti-interference communication system frame comprises a CAN bus receiving and transmitting module, a photocoupling isolation module, and a signal processing and separating module, the CAN bus receiving and transmitting module is used for receiving and transmitting CAN bus signals, and the photocoupling isolation module is used for receiving and transmitting the CAN bus signals. The photoelectric coupling isolation module is used for realizing transparent conversion of data between an optical signal and an electric signal and realizing electrical isolation of a physical layer while maintaining the integrity of a CAN protocol, and the signal processing and separation module is used for constructing a cooperative processing mechanism of time sequence calibration, differential judgment, logic reconstruction and signal synthesis. According to the invention, based on a physical layer signal isolation mechanism of optoelectronic isolation, a bidirectional independent transmission path of a CAN bus TXD / RXD channel data stream is established, and TXD mapping data and CAN bus effective data in an RXD channel are accurately separated, so that the system reliability in an industrial-grade communication scene can be obviously improved.

The invention provides an autonomous swing arm cooperative control method applied to an underwater dam body inspection robot, the inspection robot is equipped with a swing arm, an underwater propeller, a track moving mechanism and a multi-sensor system, and the method comprises the following steps: sensing and judging whether the inspection robot is stuck or not through multiple sensors in real time, and identifying the type of the inspection robot; calling a corresponding strategy from a cooperative control strategy set pre-trained by reinforcement learning based on the identified types such as sludge clamping stagnation, flexible winding or rigid obstacle; according to the strategy, expected parameters for controlling cooperative movement of a swing arm, a propeller and a crawler belt are directly generated and converted into specific driving signals, all executing mechanisms are driven to act cooperatively through an industrial communication protocol, and autonomous escape is achieved; through a sensing-decision-execution closed loop, self-adaptive cooperative control of multiple mechanisms in a complex underwater environment is realized, and the escape efficiency, the operation stability and the overall autonomy of the inspection robot are remarkably improved.

The invention discloses an industrial multi-protocol communication gateway adaptive adaptation method and system, and relates to the technical field of industrial communication, and the method comprises the following steps: deploying a communication performance collection engine and a physical environment collection engine on a system in parallel, capturing a key performance index KPIs in real time, capturing a physical layer signal reflecting an electromagnetic activity state in a case, and transmitting the physical layer signal to a server; generating a real-time data stream with a timestamp; according to the method, a communication performance acquisition engine and a physical environment acquisition engine are deployed in parallel, key performance indexes KPIs are acquired, physical layer signals are captured, and a multi-dimensional associated communication-electromagnetic combined baseline model is established to sense the dynamic electromagnetic environment in the baseline model; a hidden fault of inter-symbol interference (ISI) caused by internal electromagnetic coupling can be accurately identified and quantified, a communication logic error and a physical layer electromagnetic phenomenon are accurately associated on a timeline, and accurate positioning of an interference source is realized.

The embodiment of the invention provides a data collection method and system, electronic equipment and a storage medium, and is applied to the technical field of industrial communication. According to the data acquisition method and system, the electronic equipment and the storage medium provided by the embodiment of the invention, the register objects with the same acquisition period, the same slave station ID, the same function code and continuous register addresses are aggregated in the same second register aggregation group, and the data request frame is generated for the same second register aggregation group; the register objects in the second register aggregation group can share one data request frame. Compared with the prior art in which each register object generates an independent data request frame, the data acquisition method and device have the advantages that the number of the data request frames can be obviously reduced, so that excessive system resources are prevented from being occupied, and the data acquisition efficiency is further improved.

The invention provides an EtherCAT message processing method and device, equipment, a medium and a product. Relates to the industrial communication field. The method comprises the following steps: receiving an Ethernet control automation technology EtherCAT message sent by master station equipment, wherein the EtherCAT message comprises at least one destination address; determining a target virtual slave station corresponding to at least one destination address in the plurality of virtual slave stations; and processing the EtherCAT message through the target virtual slave station. According to the method provided by the invention, a process of processing the data by the virtual slave station based on the EtherCAT protocol is provided, a unified message data processing framework is used, redundant development of the virtual slave station on the data processing process is reduced, and the maintainability and expansibility of the system are improved.

The invention discloses a simulation system for industrial control software testing, which relates to the technical field of industrial control software testing and comprises the steps of uniformly configuring testing tasks, scheduling testing processes, managing testing cases, constructing a programmable virtual industrial control environment, packaging an industrial communication protocol and providing a standardized interface. The problems of protocol difference and interface compatibility between different devices are solved; and defining and combining complex test scenes of multi-device collaborative logic, abnormal working conditions and network disturbance. Complete separation of real hardware equipment is realized, the construction cost and the maintenance complexity of a test environment are remarkably reduced, the coverage range and the authenticity of the test are improved, the stability and the fault-tolerant capability of control software under extreme conditions are verified, the whole scheme realizes configurable, quantifiable and repeatable test processes, and the test efficiency is improved. And powerful support is provided for high-efficiency and high-credibility verification of industrial control software.

The invention provides a mobile communication terminal testing device and a terminal testing method, and relates to the technical field of mobile communication testing. The device is composed of a test master control module, a multi-scene simulation module, a multi-dimensional test module, a terminal adaptation module, an automatic control module, a data acquisition and analysis module, a result output module and a calibration module. The multi-dimensional test module synchronously acquires radio frequency performance, communication quality, power consumption and stability indexes, and realizes efficient and accurate test of mobile communication terminals of different systems and different types in combination with automatic control and adaptive adaptation technologies. Practice verification shows that the test efficiency is improved by more than 60% compared with a traditional method, the radio frequency performance test precision reaches + / -0.1 dB, the communication quality test error is less than or equal to 2%, the method is adaptive to more than 95% of mobile communication terminals such as a smart phone, an Internet of Things terminal and an industrial communication terminal, and the test efficiency and the data reliability are remarkably improved.

The invention provides a real-time redundancy fault-tolerant communication system based on double RS-485 links, and belongs to the technical field of industrial communication and real-time control, the real-time redundancy fault-tolerant communication system comprises two electrically independent and logically cooperative RS-485 physical links, at least one master node and a plurality of slave nodes, the first RS-485 link is used for sending data frames to the slave nodes by the master node, and the second RS-485 link is used for sending data frames to the slave nodes by the slave nodes; the second RS-485 link is used for sending a feedback frame from the slave node to the master node, the slave node and the master node form a parallel or alternate pipelined communication relationship in time, the feedback frame comprises two timestamps, the first timestamp records the moment when the slave node receives the data frame, and the second timestamp records the moment when the slave node sends the feedback frame. The system is simple in structure, low in cost, high in real-time performance and high in reliability, is suitable for real-time systems of industrial control, robots, motion control and the like, and is a low-cost alternative scheme of the real-time Ethernet.

The invention relates to the technical field of computers and microcontrollers, and discloses an extensible embedded industrial personal computer control method based on a microcontroller chip. The method comprises the following steps: collecting multi-source sensor data and carrying out local edge preprocessing; judging event triggering conditions through a self-adaptive dynamic threshold model; starting a streaming feature extraction engine only when conditions are met, and generating feature vectors containing mean values, variances, slopes and mutation points; inputting to the lightweight multi-layer perceptron model to output a control instruction; the information is sent to the execution mechanism through the industrial communication interface; and when not triggered, entering a low-power-consumption dormant state. The method can reduce the load of the processor and the communication traffic while guaranteeing the real-time performance and reliability of control, and is suitable for a battery power supply scene or a wireless industrial Internet of Things scene.

The present application relates to the technical field of coal sampling machinery, and particularly relates to a novel automobile sampling machine, which comprises a sampling execution device, a sample processing device and a control device. The sampling execution device is provided with a screw drill type sampling head, a driving mechanism, a lifting mechanism and a cleaning mechanism; the sample processing device comprises a sample collector and a sample preparation unit. The control device is connected with each device through an industrial communication bus and is configured to perform a sampling point random determination operation to generate coordinate information, control the sampling head to move to a target position, then drive the outer cylinder sawtooth structure to rotate and cut and break the lump coal in a breaking mode, and then switch to a sampling mode to drive the internal drill rod to drill and sample; the sampling amount is monitored through a sensor to generate a stop signal, the sampling head is controlled to be lifted to the sample collector to release the coal sample, and finally the cleaning mechanism is started to clean the residues. The present application realizes the automatic sampling of coal of all particle sizes and effectively solves the sample distortion problem caused by the fact that lump coal cannot be sampled.

The invention relates to the technical field of zinc extraction rotary kiln processing devices, in particular to a detection method, system and device for reducing ring formation of a zinc extraction rotary kiln, and the method comprises the following steps: step 1, cleaning the inner side wall of the rotary kiln, removing adhesive substances, constructing a 1: 1 three-dimensional geometric model by using 3D software according to the actual internal size of the rotary kiln, and calculating the actual internal size of the rotary kiln; the method comprises a first step of embedding equipment such as a thermal imager, a thermocouple, a combustor and an air pipe into a geometric model according to actual installation positions, and marking the monitoring range of the equipment, a second step of establishing a three-dimensional mapping relation of'equipment data-space coordinates', namely distributing exclusive space coordinate codes for each piece of detection equipment, and a third step of increasing the early warning advance by 80% through an industrial communication protocol, and aiming at different first-stage, second-stage and third-stage scenes, differentiated monitoring frequencies and triggering conditions are formulated, and air volume and air pressure linkage adjustment of the feeding combustion air duct is matched, so that resource waste or insufficient prevention and control caused by one-step regulation is avoided.

The utility model relates to the technical field of industrial communication equipment, in particular to a multi-port industrial network card, which comprises a network card shell, two sides of the network card shell are provided with connecting ports, the front surface of the network card shell is provided with a positioning groove, the front surface of the network card shell is fixedly connected with a pressing plate, the pressing plate is positioned above the positioning groove, and the inner side of the pressing plate is provided with a positioning assembly. A plurality of heat dissipation holes are formed in the back face of the network card shell, grooves are formed in the bottoms of the two sides of the network card shell, buckle mechanisms are arranged in the grooves, and a network card body is arranged in the network card shell. According to the utility model, the design of the network card improves the installation convenience and stability, the rapid installation and firm fixation are realized through the positioning assembly and the buckle mechanism, the heat dissipation performance is improved through the back heat dissipation holes and the heat dissipation module, and the service life of equipment is prolonged. A shell protection layer, a dustproof, moistureproof and antistatic design and an anti-falling and anti-seismic structure enhance safety, the whole device adapts to a complex environment, and stable operation of the system is guaranteed.

The invention relates to a method for verifying real-time communication on a communication link (21) of an industrial communication network (20), comprising: capturing communication on the communication link (21) at at least one location of the communication network (20) for a predetermined time using a network test access point (2) and providing an associated recording (10), feeding the recording (10) as input data to a trained large language model (4), wherein the language model (4) has, according to training, knowledge of at least one protocol structure of a protocol used on the communication link (21) and / or has access to such knowledge, and feeding at least one query string (11) to the trained large language model (4).wherein the query string (4) includes at least one command for checking a technical state of the communication link (21) and / or the industrial communication network (20) based on the recording (10), receiving and providing an output string (12) of the trained large language model (4) representing and / or describing the technical state, generating a verification signal (13) based on the output string (12), and outputting the generated verification signal (13). The invention further relates to a corresponding device (1).

The invention discloses an equipment communication management system and a battery formation test system, and belongs to the technical field of equipment communication. The invention provides a modularized and configurable equipment communication management system, which is characterized in that a collaborative architecture of a configuration file receiving module, a command and data routing module and an equipment interaction module is introduced, and a dynamic configuration file containing equipment identification information, a communication protocol type and a request / response message structure definition is combined; uniform adaptation of various industrial communication protocols is realized. A request message structure definition comprises a sending mode parameter, a sending frequency parameter and a sending interval parameter, so that the system can flexibly support complex interaction modes such as periodic communication, single request or limited times of polling according to configuration. The equipment communication management system provided by the invention comprehensively supports a complex communication scene, greatly improves the equipment access efficiency, enhances the system compatibility and expansibility, and reduces the maintenance cost and the firmware version fragmentation risk.

The application relates to the technical field of video monitoring linkage, and provides a video monitoring linkage method for realizing a heterogeneous software system based on network communication, which comprises a pre-built DLL plug-in architecture and a three-dimensional mapping power supply monitoring network with dynamic loading; the DLL plug-in architecture is configured with an associated industrial communication protocol stack; the industrial communication protocol stack is provided with a protocol identification mechanism based on flow characteristics; the power supply monitoring network is configured with a distributed message bus and an XGBoost abnormality detection model which are built based on ZeroMQ; the distributed message bus is provided with south-north data channels and is connected with video monitoring equipment respectively; the XGBoost abnormality detection model is used for performing abnormality detection on device sensing data of the video monitoring equipment, and abnormal data is converted into a streaming media interface.

The invention relates to the technical field of industrial communication and FPGA virtualization, in particular to an FPGA-based virtual Ethercat slave station function implementation method, which comprises the following steps of: pre-storing a plurality of sets of independent virtual slave station parameter configuration tables in a BRAM (Border Random Access Memory) of an FPGA, switching responses according to time slices in a sequence of the configuration tables during topology scanning of a master station, and simultaneously injecting programmable transmission delay to simulate physical link difference; in the operation stage, a data frame logic address is extracted through a hardware analysis engine, multi-slave-station data field modification is completed in a single cycle through a multi-channel parallel processing unit, protocol compatibility is guaranteed through a mailbox command agent, and finally a CRC check code is updated and a response is returned according to a virtual topological sequence. According to the method, a single FPGA supports multiple virtual slave stations, the deployment cost of the multiple slave stations is remarkably reduced, the hard real-time performance and the protocol compatibility are guaranteed, the resource utilization rate is improved, the slave stations can be dynamically added and deleted by updating the configuration table, and the core problems that an existing scheme is high in cost, poor in real-time performance and weak in expansibility are effectively solved.

The invention relates to the technical field of reduction gearbox oil monitoring, and provides an on-line oil monitoring system applied to an electric shovel reduction gearbox, which comprises an oil path circulation unit, a multi-parameter monitoring unit, a multi-parameter monitoring unit, a multi-parameter monitoring unit, a multi-parameter monitoring unit, a multi-parameter monitoring unit, a multi-parameter monitoring unit and a multi-parameter monitoring unit, and is characterized in that the oil path circulation unit is used for realizing oil circulation sampling; the multi-parameter monitoring unit is in two-way communication with the PLC data processing unit through an RS485 interface to complete data calibration and is electrically connected with alarm judgment through the grading alarm unit, the grading alarm unit is electrically connected with the PLC data processing unit, and the PLC data processing unit is connected with the upper computer intelligent analysis unit through the industrial communication unit and the Ethernet. Through cooperation of multiple units, oil liquid multi-parameter real-time monitoring is achieved, oil is replaced according to needs, waste is reduced, fault response time is shortened through real-time early warning, the misjudgment rate is reduced through multi-parameter fusion, the system adapts to the severe environment, the service life can be predicted, energy consumption is optimized, and monitoring reliability and economical efficiency are improved.

The invention discloses industrial communication relay equipment and application thereof. The industrial communication relay equipment comprises a magnet, an antenna, an indicator light, a charging port, a charging indicator light, a side panel, a side frame, an RJ45 network interface, a switch button and a hook. The communication relay product is researched and developed based on the Lora technology, the 1.4 G long-distance communication technology and the WIFI technology, the MESH ad hoc network technology is adopted, relay transmission of data can be achieved through a plurality of communication relays so as to achieve the purposes of long-distance communication and obstacle diffraction, the rechargeable lithium battery pack is adopted in the product, the standby time is ultra-long, and the service life of the product is prolonged. And the antenna can be widely applied to places with metal barriers or places needing long-distance communication. The product provided by the invention can realize a WIFI signal receiving function, a Lora signal receiving and sending function and a 1.4 G broadband signal receiving and sending function, supports MESH ad-hoc network, supports the running state of LED display equipment, and is charged by using DC 12V.

The utility model relates to the technical field of industrial communication interfaces, in particular to an RS485 self-adaptive communication circuit with intelligent reflection suppression. The circuit comprises an RS485 chip, an automatic transceiving circuit and a micro-control unit, the enabling end of the RS485 chip is connected with the micro-control unit through the automatic transceiving circuit, and the transceiving state of the RS485 chip is controlled by the micro-control unit; the circuit is characterized in that an electromagnetic compatibility circuit is arranged between the input and output ends of the RS485 chip and the wiring terminal, and the electromagnetic compatibility circuit comprises a transient voltage suppression circuit, a resettable fuse, a pi-type filter circuit and a gas discharge tube. According to the utility model, the EMC circuit is improved, the circuit protection capability is increased, and the inter-stage coupling interference is reduced; an automatic transceiving circuit is improved, and transceiving state switching time is shortened. Meanwhile, the number of capacitive elements in the voltage acquisition circuit and the current acquisition circuit is reduced, and stray capacitance and signal rising time are reduced.

This invention relates to the field of industrial communication technology and discloses a communication method and apparatus for industrial switches to connect walkie-talkies without a gateway. The method involves a management unit receiving a walkie-talkie terminal registration request, assigning a unique virtual LAN identifier, configuring a multicast group address, and establishing a binding relationship. An analog audio interface module receives analog voice signals and accompanying signaling, performs sampling, analog-to-digital conversion, compression encoding, and parses the PTT trigger signal to generate a transmit enable signal. Data frames are then encapsulated and sent to the switching chip. The switching chip queries the forwarding table based on the transmit enable signal and the walkie-talkie identifier, adds a virtual LAN identifier, and forwards the data frames via multicast. The management unit continuously monitors link quality and automatically switches the channel to a backup port when quality deteriorates, ensuring stable and reliable communication, simplifying the network architecture, and reducing costs.

This invention belongs to the field of industrial communication fault detection technology, specifically relating to a communication fault detection method based on protocol message analysis for POWERLINK communication networks. It includes the following steps: 1) parsing protocol messages and extracting message information as the message parsing result; 2) generating context information describing the network based on the message parsing result; 3) determining whether a protocol communication fault has occurred based on the message parsing result, the current network state, and the network context information; if a fault has occurred, recording the fault-related information; 4) generating the next state the network needs to transition to based on the message parsing result and the current network state, updating the network state, and returning to step 1), until the protocol message monitoring ends, completing the network communication fault detection. This invention can accurately and effectively detect dynamic upper-layer protocol faults in communication networks and can be widely applied to online fault detection and offline fault analysis in industrial communication networks.

This application discloses a method for dedicated data transmission and synchronization signal sharing in intelligent power cabinets, belonging to the fields of high-power power electronics technology and industrial communication. This method modifies the UART protocol frame structure, expanding the start bit from 1 bit to 3 bits to distinguish between A, B, and C phase synchronization signals or no synchronization trigger, allowing the phase information of the synchronization signal to be directly embedded in the data communication frame. The transmitting FPGA is configured with a dedicated communication status address and data length write address for the MCU to monitor and trigger data transmission, and transmission is initiated on the rising edge of the synchronization signal or by an internal periodic task. After parsing the valid synchronization bit information, the receiving FPGA immediately outputs an interrupt pulse to the MCU of its own cabinet through hardware circuitry, and employs a precise delay forwarding mechanism for the transmitting power cabinet, ensuring that the synchronization interrupt trigger times of the MCUs in each cabinet are aligned at the microsecond level. This method improves the synchronization accuracy, current sharing performance, and system reliability of multi-cabinet parallel systems, and supports dynamic redundancy switching in case of synchronization source failure.

The invention provides a steel carbon accounting method and system based on multiple protocols and carbon flow balance, and relates to the technical field of industrial carbon emission management.The method comprises the steps that multiple industrial communication protocol stacks are called to collect steel production data of steel process equipment in the steel process flow, calling a carbon mass conservation model to carry out data management on carbon flow data corresponding to the steel production data to obtain to-be-checked data of the carbon flow data and verification log data of data management; performing carbon emission accounting on the to-be-accounting data at the enterprise carbon emission accounting level and the process carbon emission accounting level respectively to generate accounting path data of carbon emission accounting; and carrying out block chain evidence storage on the steel production data, the verification log data and the accounting path data to obtain an auditable evidence chain of the steel technological process. The method is used for solving the technical problems of insufficient accuracy of steel carbon emission data acquisition, reliability of data management and compliance of data accounting in the prior art.