256 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 provides a smart building integrated management system and method and electronic equipment, and relates to the technical field of automation, and the system comprises an equipment Agent layer, a regional Agent layer, a coordinated management Agent layer and a user interface Agent layer which are in communication connection through an Ethernet and a field bus; the device Agent layer comprises Agents corresponding to different devices; the regional Agent layer comprises an emergency affair Agent, a safety Agent, an energy-saving Agent and an environment Agent; the coordinated management Agent layer comprises a control decision Agent and a blackboard area; the control decision Agent registers the information of all Agents, counts and analyzes the information on the blackboard area, and monitors and coordinates the operation of all Agents; the blackboard area comprises information of all Agents, and the information is published through a preset language; the user interface Agent layer carries out information interaction with management personnel and carries out improvement based on an interaction process. According to the invention, comprehensive integrated management of various devices, areas and functions in the building is realized, and the overall coordination and operation efficiency of the system are effectively improved.

The invention discloses a multi-core heterogeneous control-drive integrated internal and external shaft motor cooperative control method, and belongs to the technical field of motor cooperative control method.The control-drive integrated system is connected with an external shaft through a field bus, mechanical motion parameters of the external shaft are obtained, and the coordinate relation between a robot and the external shaft is established; an operation control system carries out unified planning on an internal shaft and an external shaft of a robot, an interpolation track is generated, a master station program clock is taken as a reference, a master station can obtain numerical values of a global counter of an arm core and a microsecond counter of an FPGA core at the starting moment of each period, and the numerical values of the global counter of the arm core and the microsecond counter of the FPGA core are calculated through a master station program, a middle layer program and a servo control program. An FPGA program needs to be subjected to layer-by-layer handshake and bus stability detection and enters a clock calibration link after handshake passes, and a master station program obtains a counting value of an ARM core global counter at the starting moment of thread execution.

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 utility model discloses a full-shielding grounding type armored field bus cable, which comprises two single-pair shielding twisted wire cores and two external fan-shaped polyethylene resin filling core frames, wherein the two single-pair shielding twisted wire cores and the two external fan-shaped polyethylene resin filling core frames are arranged in a cross shape to form a cable core; each shielding twisted-pair wire core comprises a wire core body which is formed by back-twisting and twisting two insulating wire cores and arranging the two insulating wire cores and two inner-layer fan-shaped polyethylene resin filling core frames in a cross shape, and the wire core body is sequentially wrapped by an aluminum-plastic composite belt longitudinal wrapping waterproof sub-shielding layer, a tinned copper wire inner grounding wire and a semi-conductive nylon water-blocking wrapping layer. The cable core is sequentially coated with an aluminum-plastic composite tape longitudinally-wrapped waterproof total shielding layer, a tinned copper wire outer grounding wire, a copper wire woven total shielding layer, an irradiation crosslinking linear low-density polyethylene inner sheath layer, a galvanized steel wire armor layer and an irradiation crosslinking linear low-density polyethylene outer sheath layer. The cable is balanced and stable in structure, the twisted wire cores are not easy to loosen, the anti-interference capability is enhanced, the cable is suitable for working in a humid environment for a long time, and the durability is better.

The invention provides a field bus state detection system and method based on a DCS. The field bus state detection system comprises a master station state detection module, a slave station input signal module, a quality judgment module, a fault recording module and an upper computer. The master station state detection module is used for detecting the states of a plurality of master station devices of the thermal power plant, and when the detection result of any master station device indicates that the master station device fails, the detection result is sent to the upper computer; the slave station input signal module is used for receiving a digital signal input by slave station equipment; the quality judgment module is used for judging the digital signal and sending the digital signal to the fault recording module when the digital signal fails; the fault recording module is used for recording fault information of the digital signals and sending the fault information to the upper computer; and the upper computer is used for displaying a detection result and a recording result. The whole system is low in implementation cost and high in operability, abnormality of the thermotechnical bus equipment is found timely and effectively, the specific situation of faults is further analyzed, the detection time is shortened, and the reliability of detection results is improved.

The utility model discloses a motor-driven control device based on a field bus control system, which relates to the technical field of motor-driven control, and is characterized by comprising a driving shell wrapping a driving circuit board with a piercing copper needle and a cable shell with a control and power line slot at the bottom, through the hinge cooperation of the driving shell and the cable shell and the locking of a screw in the middle, the connection of the motor driving control device, the power line and the control line can be realized in a manner of puncturing a special cable through a copper needle. Two ends of the driving shell are respectively connected with a motor connector and a sensor connector, so that the requirement that the motor driving control device can be quickly installed on occasions with a large number of practical motors is met, and the installation speed and the installation quality are improved. When a plurality of motor control devices are connected in series, a power line can sequentially penetrate through the power line grooves of the motor drive control devices.

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 discloses a logistics electronic control system and method combining real-time and non-real-time control. The logistics electronic control system comprises a non-real-time control module, a real-time control module, electronic control system equipment, a non-real-time network and a field bus, wherein the non-real-time network and the field bus are used for networking communication. The logistics electronic control system is realized in a mode of combining the real-time control module and the non-real-time control module, the control load upper limit of the logistics electronic control system is effectively improved, the system function of the electronic control system is enhanced, real-time data and process data in the logistics electronic control system are fully utilized, and the system reliability is improved. The conventional functions of monitoring and interaction of system equipment can be achieved, and the functions of a computer software mode which cannot be achieved by a real-time controller can be achieved through data storage, analysis and application. Through introduction of a non-real-time control module, the possibility of introducing more computer related technologies into an original relatively closed electric control system is provided.

The utility model discloses a thermal power plant field bus communication fault rapid diagnosis device which comprises a self-checking module and a communication diagnosis module, the self-checking module is used for self-testing the device before use, and the communication diagnosis module is used for detecting the working voltage of a communication loop of field bus equipment and diagnosing the working voltage of the communication loop of the field bus equipment. The self-checking module and the communication diagnosis module share one fuse, the communication diagnosis module is connected with field bus equipment through an external test lead, after a power-on button is inching, if the fuse is normal, a self-checking indicating lamp emits light, self-checking is normal, then the test button is inching, a self-checking module circuit is disconnected, and a communication diagnosis module circuit is connected, and if communication voltage is normal, the self-checking indicating lamp emits light. The relay coil is electrified, the communication indicating lamp emits light, and communication is normal. The device has the beneficial effects of simple structure, convenience in use, rapidness and reliability, and is a reliable device for improving the rapid diagnosis efficiency of communication faults of the field bus of the thermal power plant.

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.

The invention relates to the technical field of field bus control, in particular to a system module for analyzing ModBus RTU (remote terminal unit) messages and UART (universal asynchronous receiver / transmitter) settings sent by a host, which can quickly and accurately analyze the settings so as to achieve quick online, reduce the trial and error cost and improve the debugging efficiency, and comprises an acquisition circuit and a single chip microcomputer, the acquisition circuit comprises a front-end protection circuit, a communication circuit, an isolation optocoupler circuit, a sampling hold circuit and a square wave oscillation circuit, the square wave oscillation circuit is used for generating a synchronizing signal, intercepting a communication data frame sent by a host, synchronously sampling the communication data frame by the sampling hold circuit and then outputting the communication data frame to an input port of the single chip microcomputer, the single chip microcomputer firstly analyzes UART parameters and then analyzes Modbus Rtu parameters, and the communication data frame is transmitted to the host. And finally, a ModBus RTU message and UART setting sent by the host are obtained.

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.