1558 results about "Field device" patented technology

The invention relates to the technical field of safety monitoring and intelligent early warning, discloses a construction safety risk monitoring method and system, and aims to solve the problems that a traditional construction safety monitoring means is isolated, static and lagged. The method comprises the following steps: deploying a multi-modal sensing network to collect environment, personnel, equipment and structural data; constructing a risk factor time sequence matrix through space-time alignment and feature normalization; constructing a dynamic association graph in combination with the risk conduction rule base and historical cases; predicting risk propagation potential energy of each node by using a graph neural network; triggering early warning according to the multi-level threshold value and outputting a conduction path and a blocking suggestion; the field devices are linked to perform hierarchical suppression actions. The system comprises a sensing deployment module, a data fusion module, a map construction module, a potential energy prediction module and an early warning decision and execution linkage module. Through space-time modeling and intelligent deduction, active identification and second-level intervention of a risk link are realized, the transformation of construction safety from passive response to active prevention is promoted, and the accident probability and the loss scale are reduced.

Protocol detection circuits for detecting the field device protocol of a field device attached to a channel having a data line are sequentially connected to the data line by a controller that communicates to the field device through the protocol detection circuits. The protocol detection circuits are disconnected from the field device after protocol detection is completed. The channel may be one of a number of channels; the controller may also connect and disconnect the protocol detection circuits from the one channel whereby the protocol detection circuits can be used with any channel. After the protocol of the field device is identified a protocol adapter can be inserted into the channel to enable data conversion between the field device protocol and an another protocol used by the channel for data transmission.

The invention discloses an offshore red tide multi-parameter real-time monitoring method and monitoring system based on a buoy array. The method comprises the following steps: S1, performing array deployment and topology configuration according to a sea area sensitivity degree, tide characteristics and a historical red tide trajectory; according to the invention, through risk differentiation buoy array deployment and redundancy topology, traditional isolated monitoring limitation is solved, and sea area full coverage and red tide diffusion tracking are realized; physical-chemical-biological multi-source sensing and in-situ detection are combined with data fusion, so that the problem of single parameter is solved, and the monitoring accuracy is improved; by means of liftable stratified sampling and in-situ algae species and toxicity analysis, the vertical monitoring blank is filled up, and the complete life cycle process of red tide from occurrence to regression is completely captured; through linkage of edge-cloud multi-model early warning and field equipment, a'monitoring-early warning-disposal 'closed loop is formed, and the red tide monitoring real-time performance and the emergency response capability are greatly improved.

The invention discloses a multi-protocol device data conversion method, device and equipment based on a red-mine system, and a medium. The method comprises the following steps: acquiring a first protocol data frame sent by a first protocol host; analyzing the protocol data frame to obtain at least one piece of equipment data information contained in the protocol data frame; according to a predefined mapping relation, mapping each piece of equipment data information to a standard data field based on a second protocol object model; and performing data encapsulation on the mapped data according to a second protocol format to generate a second protocol data frame, and sending the second protocol data frame to a second protocol client application in the Hongyu system through a second protocol server. Seamless joint between the industrial field equipment and the intelligent mine system is realized, and the data transmission efficiency and the system compatibility are obviously improved.

The invention relates to the technical field of high-speed railway operation and maintenance, and provides a 4C detection-based high-speed railway overhead line system completion acceptance method and system, and the method comprises the steps: collecting overhead line system image data, obtaining pose data and spatial positioning data of an inspection vehicle, carrying out the synchronous calibration processing, building a mapping relation, and obtaining a calibrated overhead line system image; inputting the calibrated overhead line system image into a multi-scale target detection model, outputting a detection result, performing pose correction on the detection result, and generating a three-dimensional positioning coordinate in combination with the mapping relation; constructing a time sequence feature vector, inputting the time sequence feature vector into the prediction model, outputting a defect evolution trend and a risk probability of the part, and grading the risk probability; and according to the risk level and the spatial positioning data, combining a knowledge graph driven rule engine, generating an intelligent work order, mapping the intelligent work order to field equipment, and collecting and feeding back a maintenance result. According to the method, the recognition and spatial positioning precision of the parts of the overhead line system is improved, and the safety and reliability of completion acceptance of the overhead line system of the high-speed rail are improved.

The invention relates to a system for operating, in particular remotely, at least one field device (1) of automation technology by means of an operating tool (2), wherein the field device (1) is configured to communicate via a predefined fieldbus protocol (BP), wherein a remote IO (RIO) is arranged between the at least one field device (1) and the operating tool (2), wherein the communication between the operating tool (2) and the remote IO (RIO) takes place via an Ethernet-based protocol (EP), wherein a frame application (FDT) is installed on the operating tool (2), to which a communication DTM (CommDTM), a gateway DTM (Gateway DTM) for the remote IO (RIO), and a device DTM (DTM1) for the at least one field device (1) are assigned, wherein the communication DTM (CommDTM) is a communication-specific driver designed tothat it provides the gateway DTM (Gateway DTM) and the device DTM (DTM1) with the necessary information about the communication protocol (BP) used by the field device (1), wherein the gateway DTM is an iDTM gateway which enables communication between the operator tool (2) and the field device (1) using the information of an FDI package for the remote IO (RIO), and wherein the device DTM (DTM1) is designed in such a way that it enables full operation of the field device (1) via the operator tool (2).

An Advanced Physical Layer (APL) adapter for enabling functional interconnection of a 2-wire APL spur to at least one industrial process legacy field device includes a first pair of terminals, APL physical layer (PHY) circuitry, a second pair of terminals and connectivity circuitry. The first pair of terminals is configured for connection to the 2-wire APL spur. The APL PHY circuitry is capacitively coupled to the first pair of terminals. The connectivity circuitry is configured to communicate with a legacy field device connected to the second pair of terminals in accordance with a legacy communication protocol and control the APL PHY circuitry to communicate through the first pair of terminals in accordance with an Ethernet protocol.

The invention relates to the technical field of industrial wireless networks, in particular to an industrial wireless network security communication method based on a national cryptographic algorithm, which comprises the following steps that: identity authentication is required before equipment accesses the network, and gateway equipment and field equipment finish bidirectional identity authentication through the national cryptographic algorithm SM2. The secure communication method provided by the invention comprises three stages of identity authentication, key negotiation and data encryption and decryption, identity authentication is carried out by adopting a national cryptographic algorithm SM2, and transmitted data is encrypted and data integrity is verified by adopting a hash-based message authentication code SM3 (HMAC-SM3) and an SM4 block cipher algorithm (SM4). According to the secure communication method, how to save the storage space and the communication overhead of a WIA-FA network is considered, and meanwhile, a set of secure transmission protocol which is autonomously controllable on the industrial wireless network standard and the cryptographic algorithm is realized, so that the security, the reliability and the controllability in the industrial communication process are fundamentally guaranteed.

The invention relates to the technical field of power plant intelligent adjustment, and discloses a power plant load intelligent adjustment method and system. The method comprises the following steps: distributing and deploying sensors according to field equipment of a power plant, and constructing a distributed sensor network based on the sensors; establishing a single time scale control framework according to the distributed sensor network; a heterogeneous delay compensation mechanism is constructed based on a distributed sensor network and a single time scale control framework; constructing a local linear matrix inequality constraint condition of each node, obtaining an optimal solution of the local linear matrix inequality constraint condition according to a heterogeneous delay compensation mechanism, and then generating an optimal control strategy of each node; the method comprises the following steps: constructing a global Lyapunov function based on a distributed sensor network and a single time scale control framework; and the change rate of the global Lyapunov function is monitored in real time, and corresponding equipment is intelligently and dynamically adjusted according to the optimal control strategy. The method achieves the intelligent regulation and control of the power plant load, is good in stability, is high in adaptability, and is short in regulation and control period.

The invention provides a bidirectional identity authentication and encryption communication method based on an HART-IP protocol, and the method comprises the following steps: S1, respectively deploying the IP addresses of a control device and a field device and corresponding public and private key data to the control device and the field device through a configuration tool; s2, the control equipment sends an authentication request command to the field equipment, the field equipment analyzes and verifies the authentication request command and returns an authentication request response to the control equipment, and the control equipment analyzes and verifies the authentication request response and sends an authentication feedback command to the field equipment again; s3, after encrypting the session key, the control equipment sends a session key distribution command to the field equipment, and the field equipment analyzes, verifies and decrypts the session key distribution command to obtain the session key; and S4, the control equipment and the field equipment perform encryption and decryption operation on the sent and received message data based on the session key to realize encrypted communication between the control equipment and the field equipment.

The invention provides a construction site monitoring method and system based on Beidou positioning and digital twinning, and relates to the technical field of highway construction supervision. According to the invention, real-time position information of equipment, personnel and vehicles on a construction site is accurately obtained through a Beidou positioning technology, and an equipment and personnel dynamic model and a traffic dynamic model are constructed in combination with vehicle passing data collected by road test equipment. And fusing the dynamic model with a pre-constructed construction site environment model by using a digital twinning technology to generate a high-precision construction site digital twinning model. According to the model, real-time three-dimensional visual monitoring of a construction site is realized, external intrusion and internal collision risks are effectively prevented, illegal behaviors of not wearing a safety helmet and the like are identified in combination with AI, and accident tracing is realized through the Internet of Things. The construction site can be comprehensively monitored without manual inspection, and the safety and inspection efficiency of highway construction are remarkably improved.

The invention relates to a tunnel construction progress model generation method based on artificial intelligence. The method comprises the following steps: acquiring multi-source heterogeneous data such as tunnel field equipment operation and geological change, and performing multi-modal fusion to form a unified data set; based on this, a particle filter algorithm is used to correct equipment positioning deviation, and a real-time position optimization result is generated. Comparing the time and space with the progress plan, and identifying and quantifying deviation points through a critical path method and a deviation analysis algorithm to form deviation data. And constructing a construction progress model by combining construction basic parameters and adopting a genetic algorithm, generating an adjustment scheme by taking a construction period and resources as targets, and obtaining an optimal scheme through compliance screening and fitness calculation iterative optimization. By the adoption of the method, efficient integration of heterogeneous data can be achieved, the equipment positioning precision is improved to the centimeter level, multi-dimensional quantification of progress deviation is achieved, progress deviation recognition and resource allocation efficiency is improved, and a technical scheme is provided for tunnel intelligent construction.

The invention discloses a flow field device for purifying a printing cavity and a 3D printer, the flow field device comprises a forming cavity, an air inlet piece and an air outlet piece, the air inlet piece and the air outlet piece are arranged in the forming cavity in a communicating mode, the air inlet piece and the air outlet piece are arranged away from each other, and the air inlet piece comprises an air inlet pipe and a lower air equalizing pipe connected to the air inlet pipe; the lower gas homogenizing pipe is arranged in the forming cavity in a communicating mode, the communicating position is located on the lower portion of the forming cavity, the outline of the edge of the end, away from the air inlet pipe, of the lower gas homogenizing pipe is rectangular, the long edge of the lower gas homogenizing pipe is parallel to the bottom wall of the forming cavity, a plurality of gas homogenizing plates are arranged in the lower gas homogenizing pipe, and a plurality of gas homogenizing holes are formed in the gas homogenizing plates. The gas flow field can be formed near the laser scanning area, so that black smoke generated during laser scanning can be comprehensively and effectively taken away, and the influence of the black smoke on the printing quality in the printing process can be reduced.

A process plant and industrial control system architecture includes a generalized compute fabric that is agnostic or indifferent to the physical location at which the compute fabric is implemented, includes one or more physical control or field devices located at one or more specific sites at which a product or process is being manufactured and further includes a transport network that securely provides communications between the compute fabric and the pool of physical devices. The compute fabric includes an application layer that includes configured containers or containerized software modules that perform various control, monitoring and configuration activities with respect to one or more devices, control strategies and control loops, sites, plants, or facilities at which control is performed, and includes a physical layer including computer processing and data storage equipment that can be located at any desired location, including at or near a site, plant, or facility at which control is being performed, at a dedicated location away from the location at which control is being performed, in re-assignable computer equipment provided in the cloud, or any combination thereof. This control architecture enables significant amounts of both computer processing and IT infrastructure that is used to support a process plant, an industrial control facility or other automation facility to be implemented in a shared, in an offsite and / or in a virtualized manner that alleviates many of the communications and security issues present in current process and industrial control systems that attempt to implement control with shared or virtualized computing resources set up according to the well-known Purdue model.The industrial control system architecture is protected via more secure and customizable techniques as compared to those used in Purdue model-based control systems. For example, communications between any (and in some cases, all) endpoints of the system may be protected via one or more virtual private networks to which authenticated endpoints must be authorized to access. Endpoints may include, for example, containerized components, physical components, devices, sites or locations, the compute fabric, and the like, and the VPNs may include mutually-exclusive and / or nested VPNs. External applications and services, whether automated or executing under the purview of a person, may access information and services provided by the system via only APIs, and different sets of APIs may be exposed to different users that have been authenticated and authorized to access respective sets of APIs.A configuration system operates within the compute fabric to enable a user to easily make configuration changes to the compute fabric as the user does not generally need to specify the computer hardware within the compute fabric to use to make the configuration changes, making it possible for the user to deploy new configuration elements with simple programming steps, and in some cases with the push of a button.

The invention relates to the technical field of building engineering construction monitoring, and particularly discloses a mass concrete water storage and maintenance process multi-parameter fusion early warning system which comprises a multi-source heterogeneous sensing network, an edge computing gateway, a cloud fusion analysis platform and an early warning execution terminal. The sensing network collects multi-dimensional parameters such as temperature, humidity and stress of concrete and the environment; the cloud platform evaluates the maintenance state and generates a graded early warning instruction based on a multi-physics field coupling model and a fusion early warning algorithm; and the early warning terminal drives the field device to execute differential intervention. According to the invention, comprehensive perception, accurate evaluation and active regulation and control of the states of multiple physical fields in the maintenance process are realized, and the early warning reliability and the maintenance quality are improved.

Embodiments of this application provide a multi-device collaboration method, an electronic device, and a related product. The method includes: A first electronic device switches from a first page to a second page, and establishes a first near field communication connection to a first near field device in response to a user's operation on the first page, where on the second page, a device identifier of the first electronic device comes into contact with a device identifier of the first near field device; and the first electronic device switches to a third page, maintains the first near field communication connection to the first near field device, and establishes the first near field communication connection to a second near field device in response to the user's operation on the second page.

The invention relates to the technical field of distributed architectures, and discloses a multi-screen cooperative control method based on an OpenHarmony distributed architecture and an all-in-one machine system.The method comprises the steps that a broadcast frame found by equipment is sent through an OpenHarmony distributed soft bus, security authentication is conducted on a plurality of display terminals responding to the broadcast frame, a virtual bus channel is established, and the virtual bus channel is sent to the display terminals; obtaining a virtual device group; creating a distributed industrial data object on the main control equipment of the virtual equipment group and synchronizing the distributed industrial data object to each slave display terminal to obtain a distributed data model; mapping the anonymous shared memory to an annular buffer area; and writing real-time data acquired by the industrial field equipment into an annular buffer area, and transmitting the real-time data to each slave display terminal of the virtual equipment group, in the method, each display terminal accesses an agent instance of an industrial data object through a distributed data management framework; and the requirements of high reliability, low delay and high consistency on multi-screen cooperative control in an industrial field are met.

A removable display and operating module for a measuring device and / or a field device for level measurement or for limit level determination is provided, the removable display and operating module including a radio module; and an electrical connection element configured to form a detachable connection with a connection counterpart for transmitting radio frequency signals from the radio module to a radio frequency housing feedthrough and / or to an antenna of the measuring device and / or the field device. There is also provided a sensor housing for a field device for level measurement or for limit level determination, the sensor housing being configured to completely accommodate the removable display and operating module. A method of manufacturing a field device for level measurement or level limit determination is also provided.

The invention provides an Internet of Things smart farm monitoring method and system, and relates to the technical field of agricultural Internet of Things, and the method comprises the steps: executing the triggering type sensing operation of crop growth and environment abnormality at a field end side visual node of an Internet of Things smart farm based on a preset triggering condition, and outputting an end side initial sensing data set; performing non-redundant feature screening on an end-side initial sensing data set, extracting a key feature set, executing a staged slow aggregation operation through a low-power-consumption communication network, outputting batch feature data packets according to a link state, and realizing field light-flow transmission; the cloud processing platform receives the batch feature data packets, then calls the agronomy knowledge set for restoration and diagnosis, outputs a farm monitoring diagnosis result, generates a field equipment linkage instruction according to the farm monitoring diagnosis result, sends the field equipment linkage instruction to the execution equipment, and outputs an equipment linkage response result, so that the farm monitoring efficiency and accuracy are improved, and the farm monitoring accuracy is improved. Intelligent management is realized, and the field operation cost is reduced.

The embodiment of the invention relates to a method and device for managing sensor data. Systems, apparatuses, articles, and methods are disclosed. An example apparatus includes interface circuitry configured to connect with a field device, the field device including a first sensor, the field device being powered by a power source; computer readable instructions; and programmable circuitry powered by the power source, the computer readable instructions causing the programmable circuitry to: obtain a first measurement value from the field device using a first communication protocol, the first measurement value corresponding to the first sensor; acquiring a second measurement value from a second sensor separate from the field device without using the first communication protocol; and wirelessly transmitting the first measurement value and the second measurement value to the controller using a second communication protocol.

The invention discloses a precast beam lifting-transporting-erecting intelligent navigation system which comprises a beam lifting operation intelligent navigation unit, a beam transporting operation intelligent navigation unit, a bridging operation intelligent navigation unit and an intelligent control navigation unit. The intelligent control navigation unit obtains field equipment monitoring videos corresponding to the beam lifting operation intelligent navigation unit, the beam transporting operation intelligent navigation unit and the bridging operation intelligent navigation unit respectively and assists in navigation construction. And the intelligent control navigation unit also obtains respective working state data of the three operation intelligent navigation units, performs corresponding processing on the monitoring video data and the working state data, assists accurate intelligent navigation construction, and performs graded alarm when a set threshold value is not met. According to the invention, the equipment state and the operation environment can be monitored in real time, and the lifting, transporting and erecting operation of the precast beam can be accurately guided and intelligently controlled according to the preset navigation path and the operation process, so that the operation efficiency is improved, and the safety risk is reduced.

The invention relates to the technical field of computer aided design, in particular to a coal mine roadway support parameter processing system and method based on the Internet of Things, and the system comprises a data collection and integration module which receives real-time environment information from an Internet of Things terminal, obtains roadway excavation contour data, front geological forecast data and field equipment state information, and sends the data to a data processing module; and generating a roadway model associated with the environment information. According to the method, the real-time monitoring data of the Internet of Things and the roadway support design process are fused, a dynamic closed-loop optimization mechanism is constructed in support parameter processing, and the reliability and adaptability of the support system are improved. Roadway excavation outline, geological forecast and equipment state data are collected in real time and directly embedded into the three-dimensional roadway model, so that support design basic parameters get rid of limitation of traditional static geological hypothesis, and the support strength can be corrected in advance according to the deformation trend of surrounding rock in front.

A software defined distributed control system (SDCS) in a process plant includes an application layer that includes a plurality of containers instantiated in a data cluster. Each of the containers is an isolated execution environment executing within the local operating system of a respective computing node. The containers cooperate to facilitate execution of a control strategy in the SDCS, and includes a hyper converged infrastructure (HCI) operating across the data cluster, which HCI is configured to communicate with the application layer via an adapter service. The HCI includes software-defined (SD) compute resources, SD storage resources, SD networking resources, and an orchestrator service. The orchestrator service is programmed to configure a first container to include a service executing within the first container. It also assigns the first container to execute on an available hardware resource to control a plurality of field devices operating in the process plant.

The invention belongs to the technical field of intelligent manufacturing management systems, and particularly discloses a collection and control integrated Internet of Things management method and system, and the method comprises the following steps: deploying a collection soft gateway at an edge side, carrying out the connection with a field device through an industrial standard protocol, collecting operation data, carrying out the preprocessing, and uploading the data to an Internet of Things platform; standard object models are established for the machine positions and the stations on the Internet of Things platform, the object models analyze the preprocessed operation data, and analysis results are sent to the application system; the application system generates a corresponding control instruction based on the analysis result and issues the control instruction to the acquisition soft gateway; and the acquisition soft gateway executes the control instruction, controls equipment operation, completes control feedback, and uploads an execution result and newly acquired data to the Internet of Things platform again. By adopting the technical scheme, an acquisition and control integrated function is integrated, and closed-loop management of data acquisition, equipment modeling and control instructions is realized through an Internet of Things platform at the cloud end.

The invention relates to the field of industrial Internet of Things, and discloses an industrial scene-oriented multi-protocol compatible IoT acquisition and intelligent operation and maintenance system, which comprises a configuration management module used for analyzing an encrypted configuration file and dynamically loading a communication protocol driving program by using a reflection mechanism; the data acquisition module is used for establishing connection with industrial field equipment by utilizing the loaded communication protocol driving program and acquiring original data; the data processing module is used for calculating a semantic entropy value of the original data in the time window and marking a data value grade according to the semantic entropy value; the data storage module is used for executing differentiated storage operation on the data according to the data value grade; a memory management module and a data forwarding module. By constructing a data acquisition module comprising a software and hardware dual-mode interface and combining a self-adaptive driving correction mechanism based on physical layer signal feature analysis, the effect of still maintaining communication connection when standard protocol driving fails or equipment aging parameters drift is achieved.

The invention relates to a building automatic control system, method and equipment based on hardware interface virtual mapping. The system comprises field equipment, a field data acquisition module and a cloud server, wherein a virtual controller runs in the cloud server; the cloud server is used for virtualizing a hardware interface of the field data acquisition module to obtain a virtual hardware interface, and creating the virtual controller matched with the virtual hardware interface; the field data acquisition module is used for acquiring equipment data of the field equipment and reporting the equipment data to the cloud server; and the cloud server is also used for scheduling the virtual controller to carry out data processing based on the received equipment data to obtain a data processing result, and feeding back the data processing result to the field equipment through the virtual hardware interface. According to the invention, the problems of high hardware cost and limited data interaction of the building automatic control system in the prior art can be solved.

The invention comprises a method for commissioning, operating and / or maintaining a measuring point in an automation system, comprising: - Planning of one or more field devices for use at the measuring point, whereby a unique identification information (ID) is generated for each field device during the planning process; - Proposing at least one specific field device for one or more of the planned field devices based on demand information, whereby the proposed specific field devices are linked to the corresponding unique identification information (ID) and stored in the database (DB); - Ordering one or more field devices from the set of proposed field devices, whereby a serial number is created for each of the ordered field devices during the ordering process, and the serial numbers of the ordered field devices are linked to the corresponding unique identification information (ID) and stored in the database (DB); and - Installation and commissioning of the ordered field device(s) as existing field device(s) at the measuring point, as well as a system for carrying out the method according to the invention.

The invention comprises a method for logging on a user (BN, BN') to one or more field devices (FG1, FG2) of automation technology, comprising: - Activation of a login mode on the ticket server (TS) for one or more selected field devices (FG1, FG2) by a user (BN, BN'); - Generation of a login ticket by the ticket server (TS), wherein the login ticket contains login information and information on a specified validity period and is cryptographically encrypted; - Registration of a control unit (BE) on the ticket server (TS) via a first communication connection between the control unit (BE) and the ticket server (TS); - Transferring the registration ticket from the ticket server (TS) to the control unit (BE) after successful registration via the first communication connection; - Transferring the login ticket or another ticket containing the login information from the control unit (BE) to the field device(s) (FG1, FG2) via a second communication connection between the control unit (BE) and the field devices (FG1, FG2); and - Logging in of the user (BN, BN') to the field device or the field devices (FG1, FG2) by means of the login information, as well as a system for carrying out the method according to the invention.

The invention discloses a soft gateway system supporting data exchange among multiple devices, which comprises an interface driving unit and a data link unit connected with the interface driving unit, and is characterized in that the interface driving unit is used for establishing a connection relationship with various field devices to complete data acquisition; mapping from external interface data to memory data is completed, and the data is sent to a specified field device; the data link unit is used for establishing an input node data pool, selecting input node data from the input node data pool for protocol conversion, and constructing an output node data pool; different protocol analysis and interface requirements can be flexibly met, the soft gateway is used as a communication medium, the gateway can be customized and configured at will, and the field cost of an enterprise can be saved.