144 results about "Field bus" patented technology

The invention provides a prediction method and system for a rock stratum fracture disaster in tunnel engineering, and belongs to the field of tunnel engineering. Comprising the steps of multi-modal monitoring data acquisition and synchronization, data preprocessing and feature calculation, multi-modal information entropy evolution analysis, catastrophe point detection and precursor identification, risk assessment and early warning output and the like. Multiple types of sensors are arranged at key positions of a tunnel, an edge computing gateway is accessed through an industrial-grade field bus, and space-time reference unification of multi-source heterogeneous data is achieved; carrying out preprocessing and feature calculation on the collected original data; performing sliding window probability distribution modeling on each modal feature, calculating an information theory index, and analyzing non-linear relevance among the multi-modal features; judging whether a catastrophe precursor event exists or not by adopting multiple methods; and finally, based on a catastrophe point detection result, performing risk assessment on the tunnel region by using a multi-dimensional risk quantification model, and performing early warning output on high-risk and emergency states.

The invention provides an intelligent laboratory man-machine interaction control method and system, and relates to the technical field of control, and the method comprises the steps: collecting experimenter and equipment images through a visual collection device, recognizing equipment operation state parameters based on a deep learning model through a processing server, including a switch state, an indicating lamp state, a display screen state and a fault indication state, and transmitting the state parameters to a server; and comparing the identification result with a preset parameter to generate an evaluation result. And the processing server receives the user voice instruction, extracts the content of the control instruction, and determines the target equipment and the control action. And verifying the legality of the instruction and judging whether an execution condition is met by combining an equipment state evaluation result. And a cooperative control strategy is generated according to the control instruction and the evaluation result, the cooperative control strategy comprises a control time sequence, parameters and a data interaction mode, and the control instruction is sent through the field bus network to realize multi-device cooperative control. According to the invention, intelligent management and control of laboratory equipment are realized, and the experiment efficiency and safety are improved.

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 coal mine underground dust prevention and control, in particular to a coal mine dust concentration over-limit spraying and dust-settling device and a control system thereof.The coal mine dust concentration over-limit spraying and dust-settling device comprises a dust sensing array composed of a plurality of dust concentration sensors arranged in a spatially separated mode, a main sensor arranged close to a dust generation source, and a dust concentration sensor arranged close to the dust generation source, the at least two auxiliary sensors are sequentially arranged at a set interval; the wind speed sensing unit is mounted in a preset range of the upwind direction of the main sensor and is used for synchronously capturing real-time wind speed; the partition spraying actuator comprises independent spraying units corresponding to the positions of the sensors, and each unit is provided with a quick-response electromagnetic valve and an atomizing nozzle; the multi-source information fusion controller is connected with the dust sensing array, the wind speed sensing unit and the partition spraying actuator through an industrial field bus; through dynamic threshold setting, dust diffusion path monitoring and prediction interception technologies, the problems of response lag and excessive spraying of a traditional fixed threshold system are solved.

The invention discloses a multi-robot control system, which comprises a master robot control system and at least one slave robot control system, and each of the master robot control system and the slave robot control system comprises a demonstrator, a multi-robot control module, a communication module, a servo control module and a robot control module; the demonstrator is used for carrying out man-machine interaction, and parameter setting and operation are carried out on the robot through the robot remote teaching device; the multi-robot control module is used for performing forward and inverse solution operation calculation according to the robot feedback information acquired by the robot control module and generating a control instruction for the robot; the communication module comprises a field bus Ethercat, a master station and a slave station and is used for being responsible for real-time field bus management; the servo control module is used for controlling the action of each servo motor based on the position instruction of the robot control module; the robot control module is used for acquiring feedback information of the robot from the servo control module and executing a robot control instruction, and the control instruction comprises a robot position instruction and a system variable instruction; the invention further discloses a multi-robot control method, a computer readable storage medium and electronic equipment. The multi-robot control method does not need an additional upper computer or PLC assistance.

The invention discloses an industrial multi-protocol communication device and method based on a PON technology. The industrial multi-protocol communication device based on the PON technology comprises an optical module, a PON chip module, a processor module and a field bus interface module, the processor module is used for converting a standard Ethernet signal into a field bus signal. Therefore, the processor module mainly adapts to different protocol standards through software configuration instead of needing special hardware support for each protocol, so that the industrial multi-protocol communication device based on the PON technology can meet various protocol requirements and realize access of one or more field buses, thereby replacing a plurality of communication modules, and improving the communication efficiency of the industrial multi-protocol communication device based on the PON technology. The equipment cost is effectively reduced, the utilization efficiency of equipment space is improved, and the power supply pressure is relieved.

The invention discloses a multi-protocol compatible hydropower station field bus photoelectric signal synchronous acquisition device and method, and relates to the technical field of industrial bus testing, the device comprises a core control layer, a signal conditioning layer, a photoelectric interface layer, a clock synchronization layer, a power management layer and a data storage and transmission layer; the core control layer adopts a dual-core framework of a domestic Loongson 2K0300 main control unit and a domestic FPGA (Field Programmable Gate Array) time sequence control unit; the clock synchronization layer adopts a two-stage synchronization mechanism of'local crystal oscillator time sequence control + NTP network clock calibration '; and the signal conditioning layer is integrated with a multi-protocol self-adaptive conditioning module and an industrial-grade anti-interference module. The method comprises the steps of clock initialization and calibration, parameter configuration, photoelectric signal parallel acquisition and time sequence synchronization, and data preprocessing and transmission, so that synchronous acquisition of six types of bus protocol photoelectric signals is realized. The system has the advantages of multi-protocol compatibility, autonomous controllability, good portability and the like, and provides reliable data support for bus communication quality evaluation and fault diagnosis.

The invention discloses an energy storage system and a communication control method, and relates to the field of energy storage, and the energy storage system comprises an energy management system and a temperature control system. The energy management system is in communication connection with the temperature control system through a field bus and a preset signal line. The method comprises the following steps: monitoring a communication state of a field bus; when it is monitored that the communication state of the field bus is abnormal, a control signal is generated; by controlling the dry contact in the preset signal line to perform control signal transmission, restarting the temperature control system and trying to reestablish communication transmission between the energy management system and the temperature control system, continuity of data transmission between the energy management system and the temperature control system can be guaranteed, and stability of the energy storage system is improved.

In a fieldbus system, each sub-participant 3 has a sub-connection 33 and a function connection 34 connected to the sub-connection 33. Each sub-participant records status information indicating whether the function connection is active or inactive. A telegram issued by a main participant in the fieldbus system contains at least one datagram, and the status information of the sub-participants 3 addressed in the datagram is recorded with the telegram. Furthermore, a counter field of the datagram is modified by the sub-connection 33 of the sub-participant 3 that processed the payload field in a manner predefined for the respective data transmission operation. The datagram is assigned an expected value for the counter field, which results when the payload field has been processed by the addressed sub-participants 3 according to the data transmission operations specified in the command field.The main participant 2 then determines the expected value for the counter field of the datagram based on the status information captured in the telegram and compares it with the value of the counter field in the datagram processed by the addressed sub-participants 3 in order to detect a processing error in the datagram processed by the addressed sub-participants 3 in case of a deviation.

The invention discloses an IO-Link system synchronization method and device, equipment and a medium, and relates to the technical field of field bus communication, and the method comprises the steps: judging whether slave equipment supports synchronization or not; if the slave equipment supports synchronization, writing a synchronous clock of a bus into the slave equipment which supports synchronization, so that the slave equipment adjusts a local clock into the synchronous clock; determining message transmission delays of slave devices supporting synchronization, comparing the message transmission delays, and determining the maximum message transmission delay; and writing the maximum message transmission delay into slave equipment supporting synchronization, so that the slave equipment executes a control command according to the input data when the timing time reaches the maximum message transmission delay. According to the method, the problems of clock skew and clock drift of the slave devices in the IO-Link system can be solved, the clock skew of the master device and the slave devices in the control device and the IO-Link system is eliminated, and synchronous action between the slave devices is ensured.

The application relates to the technical field of industrial measurement and control software, and discloses a nationwide state-oriented measurement and control platform which adopts a layered architecture and comprises the following: an application service layer for providing a man-machine interactive interface and executing business logic; a unified business message layer for providing a standardized data communication interface; a multithreaded time sequence scheduling engine for parallel receiving, scheduling and processing real-time tasks; a unified hardware abstraction layer for encapsulating the differences of different field bus drivers and providing a unified device operation interface; a domestication adaptation layer constructed on a Qt core framework and used for providing a unified driving abstraction across domestic chips and operating systems; and a hardware access layer for directly interacting with physical hardware devices.The application realizes 'one-time development and cross-domestic platform deployment', significantly improves the real-time performance, maintainability and expandability of the system under the domestic ecological environment, and meets the dual requirements of self-controllability and high performance.

The invention provides a real-time deviation correction execution device for intelligent pushing of a large-span steel beam. The real-time deviation correction execution device comprises a walking type pushing equipment assembly, a high-precision displacement sensor, a tilt angle sensor and a data acquisition unit. The walking type pushing equipment assembly and the high-performance hydraulic servo system are arranged on the pushing construction platform and are connected with the beam body through the self-adaptive pushing shoe; and the data acquisition unit is connected with each component in real time through an industrial Ethernet or a field bus, and uploads a signal to the central processing unit, so that the real-time deviation correction control in the beam body pushing process is realized. By arranging the walking type pushing equipment assembly, the self-adaptive pushing shoe and other components and through the matching relation between the walking type pushing equipment assembly and the self-adaptive pushing shoe, when the walking type pushing equipment assembly pushes the self-adaptive pushing shoe to move upwards, the self-adaptive pushing shoe automatically adapts to and is attached to the lower surface of the steel beam, the situation that the pushing shoe is uneven in stress due to local concave-convex is avoided, and the service life of the steel beam is prolonged. And the vertical elastic mechanism and the pressure sensor are matched with each other to detect the inclination of the two sides of the steel beam.

An architecture for transmitting data within an avionics system fitted to a vehicle, the architecture comprising a first field bus and a first avionics bus. According to the invention, the architecture comprises at least two primary channels each comprising: a primary field interface enabling communication between each primary channel via the first field bus, the field interfaces being interconnected with the first field bus; and a first avionics interface compatible with the first avionics bus. The architecture comprises at least one primary computer provided with a second avionics interface in communication via the first avionics bus with only one first avionics interface among the first avionics interfaces.

1. Name of the Design Product: Bus Valve Island. 2. Use of the Design Product: It is used for installing communication modules. For example, it optimizes wiring with a circuit board through push-in type terminals and simultaneously accesses fieldbus communication modules to facilitate control of solenoid valves with respective wiring methods. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View 1.

A gateway for a fieldbus system for connecting a controller to an industrial plant having a plurality of different components. The gateway includes at least one component interface via which the different components can be connected simultaneously or sequentially, a control interface to which a controller of the industrial plant can be connected, and a data processing module which, when at least one of the components is connected to the at least one component interface, is configured to identify the at least one component on the basis of a hardware address assigned thereto and to communicate with the at least one component via the component interface, and which, when the controller is connected to the control interface, is configured to communicate with the controller and to represent the at least one component with respect to the controller as a function-based representation. Furthermore, a fieldbus system is described.

The present invention relates to a method for automatically assigning identifiers to controlled nodes of a fieldbus network, the controlled nodes comprising a plurality of electric motor drive systems, IO devices and / or feedback sensors, wherein the method comprises the following steps: ‑setting the fieldbus network to a service mode; ‑scanning the fieldbus network; ‑decomposing the fieldbus network into linear branches and switches; ‑scanning each linear branch; and ‑assigning a unique identifier to the controlled nodes of the fieldbus network, wherein the identifier comprises a relative position and a node number of the controlled node in the fieldbus network. The present invention also relates to a fieldbus network comprising a plurality of controlled nodes, preferably comprising an electric motor drive system, wherein the fieldbus network is configured to perform the method for automatically assigning identifiers.

In a field bus system, the sub-users (3) each have a sub-connection (33) and a functional connection (34) connected to the sub-connection (33), wherein in each sub-user status information is acquired which indicates whether the functional connection is active or inactive. A telegram output by a master user in the field bus system has at least one data report, wherein the status information of the sub-users (3) addressed in the data report is acquired together with the telegram. Furthermore, a counter field of the data report is changed by the sub-connections (33) of the sub-users (3) which have processed the useful data field in a manner predefined for the data transmission operation performed in each case. The data report is assigned an expected value of the counter field which arises when the useful data field has been processed by the sub-users (3) addressed in accordance with the data transmission operation predetermined in the command field. The master user (2) then determines the expected value of the counter field of the data report on the basis of the status information acquired with the telegram and compares it with the value of the counter field in the data report processed by the sub-users (3) addressed in order to determine a processing error in the data report processed by the sub-users (3) addressed in the event of a deviation.

An ethernet switch includes a housing that has at least one communication input for data of a controller, at least one system input for a system voltage and at least one communication output. At least one voltage output to an electrical load is also provided. A power supply unit, which provides the voltage supply for the switch, is provided in the housing of the switch. The power supply unit also feeds the at least one voltage output to an external load. A field bus element, which is preferably configured to monitor and / or to control the voltage output to an external load, is integrated in the housing of the switch.

The invention provides a multifunctional interphone, and relates to the technical field of interphones, the multifunctional interphone comprises a control cabinet interphone, a car roof interphone and a pit interphone which are respectively arranged in an elevator machine room, a car roof and a pit, and signal interaction is realized through a functional safety field bus or RS485 / CAN (Controller Area Network); car roof / pit signals are integrated, and a safety circuit state is output; the car top interphone collects a car top switch signal and forwards elevator control information to the car equipment; the pit interphone collects a pit switch signal and supports the uploading of a lighting switch state, a dual-channel collection and function safety field bus technology is adopted for a safety signal, and reliable transmission of the signal is ensured through SI L3 authentication; non-safe signals are transmitted through a single channel, so that the cost is reduced; the control cabinet interphone realizes a complete safety loop and a UCMP function through PASSREAL technical software, and supports parameter configuration of each switch logic; the car roof interphone transmits an elevator control instruction in a transparent mode, and a car roof control panel and a communication cable are omitted.

Some embodiments of the teachings include: establishing a foundation layer comprising an OT domain low-code development tool, runtime, and a public information model, and an OT domain workflow generated by the development tool deployed on the runtime using the public information model; establishing a domain layer depending on the foundation layer, the domain layer comprising a field bus, a domain protocol, and a device tree of an application domain, the device tree comprising a connection relationship between devices; and establishing a user case layer that depends on the domain layer, the user case layer comprising user-defined function modules, and the user-defined function modules capable of being converted into the field bus, the domain protocol, and the device tree in the domain layer, wherein data obtained from a data platform is transmitted between the user case layer and the domain layer and transmitted between the layers using the model.

The utility model discloses a fully-shielded non-grounded process field bus cable, which comprises two oxygen-free copper single wires and two fan-shaped PFA (Polyfluoroalkoxy) resin filling core frames which are arranged in a cross shape to form a cable core, and each oxygen-free copper single wire comprises an oxygen-free copper conductor and a skin-foam-skin insulating layer. An irradiation crosslinking linear low density polyethylene inner sheath layer, a copper wire weaving inner shielding layer, a copper plastic composite wrapping shielding layer and an irradiation crosslinking linear low density polyethylene outer sheath layer are sequentially wrapped outside the cable core, and a tearing rope is arranged between the irradiation crosslinking linear low density polyethylene inner sheath layer and the copper wire weaving inner shielding layer. The outer surface of the irradiation crosslinking linear low density polyethylene outer sheath layer is provided with axial wire stripping grooves which are matched with the tearing ropes along the axial direction, and reinforcing filling strips are embedded in the axial wire stripping grooves. The cable core structure is more balanced and stable, the double-layer shielding structure ensures stable shielding characteristics, grounding processing is not needed, the difficulty of manual wire stripping operation is reduced, and the durability is better.

1. The name of this design product: Fieldbus coupler. 2. The use of this design product: It is used for industrial fieldbus couplers, and is applied to connect and bridge different fieldbus networks so that they can communicate and exchange data with each other. 3. The design key points of this design product: lie in the shape. 4. The picture or photo that best shows the design key points: Perspective view 1.

A system and method for updating firmware in a Building Management System (BMS) includes a BMS controller connected to field devices via a field bus and to a firmware (FW) management tool via a network. The BMS controller requests device information including current FW versions from the field devices and sends this information to the FW management tool. The FW management tool determines which devices have outdated firmware and sends updated versions to the BMS controller, which routes them to the appropriate field devices for installation. The system allows the FW management tool to disconnect after sending updates without disrupting installation. For devices with multiple firmware files, the FW management tool sends files sequentially, waiting for each download to complete before sending the next. The field devices can notify the BMS controller of successful installations, which can then notify the FW management tool.

The invention relates to a field bus system for execution of at least one application, in particular for industrial automation, the field bus system comprising: a first device, in particular a first sensing device, configured to provide and transmit first device data, at least a second device, in particular a second sensing device, configured to provide and transmit second device data, a controller for computation of output data from the device data, at least a first target equipment controllable by the output data, a field bus, in particular a Sercos bus, and a scheduling unit for scheduling the execution of the application, wherein the devices, the controller and the first target equipment are connected via the field bus for communication with the scheduling unit, and wherein the scheduling unit is configured to determine impact parameters which impact an application response time of the bus system, and to schedule the execution considering the impact parameters.

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.

This invention provides a control system and method for a rail flash welding machine based on a distributed fieldbus. The system includes a host module, a DC power supply module, a voltage regulator, and multiple fieldbus slave modules. The host module, the DC power supply module, and the voltage regulator are housed in a control system cabinet. The multiple fieldbus slave modules are distributed among the power supply unit, the chiller, the hydraulic station, the crane, the flash welding head, and the voltage regulator. Therefore, the host module and the multiple slave modules in this invention can select either a fieldbus or an Ethernet bus based on the characteristics of the transmitted signals to achieve collaborative communication between the host and slave modules, meeting the real-time requirements of the signals. Furthermore, the data transmission lines of this invention are simple, have strong anti-interference capabilities and stability, and improve the high-speed data acquisition requirements and the execution efficiency of the carrier.

Method for operating an electric drive system, in which a synchronization signal (Sync) with a cycle time (Δtmaster) of a master of a higher-level fieldbus (1) or an integer multiple of the cycle time (Δtmaster) of the master (3a) of the higher-level fieldbus (1) is cyclically sent from the master (3a) to slaves (3b, 3c).

The invention relates to a gateway (2) for a field bus system (100), wherein the gateway (2) comprises a first processor (6) with a first operating system (62), a second processor (7) with a second operating system (72) which is different from the first operating system (62) and has a virtual Ethernet interface (73), and an interprocess communication interface (9) which is designed to enable an Ethernet protocol-based interprocess communication between the first operating system (62) and the second operating system (72) using the virtual Ethernet interface (73).

The invention relates to a method for monitoring the communication between a fieldbus (1) and a sub-bus module (20), wherein the sub-bus module (20) is controlled via a sub-bus stack (30) through the fieldbus (1), a sub-bus (2), and a sub-bus master (10). To reliably detect sporadic or infrequent errors, the data of the sub-bus stack (30) is tapped at the field level of the sub-bus stack (30) and supplied to a storage and / or evaluation unit (60) via a communication module (50).