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729 results about "Virtual terminal" patented technology

In open systems, a virtual terminal (VT) is an application service that...

System for monitoring secondary circuit model on line in real time based on protection device

The invention belongs to the technical field of power systems and discloses a system for monitoring a secondary circuit model on line in real time based on a protection device. The system comprises a network communication module, a model resolution module, a graph generation module, a model storage module and a real-time comparison module, wherein the model resolution model is connected with the graph generation module and the model storage module and outputs a substation configuration description (SCD) static model and a resolved configured IED description (CID) on-line model respectively; the real-time comparison module is connected with the network communication module and the model storage module, receives a generic object oriented substation event (GOOSE) real-time model, a verified SCD static model and a resolved CID on-line model, compares and outputs a comparison result to the network communication module, and the comparison result is uploaded to a background system to realize real-time on-line monitoring. By the system, a phenomenon that a virtual terminal and a secondary circuit of the protection device make mistakes due to SCD file modification, CID configuration errors, secondary circuit real-time connection obstacles corresponding to GOOSE messages and the like can be timely found, so that operational risks of a substation are reduced.
Owner:福建永福数字能源技术有限公司

Automatic detection system and method of secondary virtual loop of intelligent transformer station

ActiveCN105242164AImprove test efficiencyImprove efficiency of connection correctnessElectrical testingVirtual terminalFiber
The invention provides an automatic detection system and method of a secondary virtual loop of an intelligent transformer station. The automatic detection system comprises an automatic test system and virtual terminal simulated output subsystems, wherein the virtual terminal simulated output subsystems are disposed in secondary intelligent electronic devices. According to communication links and virtual terminal loop information in an SCD file, the automatic test system sends a test control command to spacing-layer and process-layer devices via the GOOSE internet to drive virtual terminal simulated output of the devices, response to test excitation of the devices is obtained from the MMS internet and the GOOSE internet to automatically determine a test result, and the correctness of the virtual loop is verified. According to the system and method of the invention, whether virtual terminals of point-to-point and networking ports of the devices are correctly connected can be determined needless of dismounting fibers among the devices, changing configuration of the virtual terminals or adding external testers, the debugging-verifying efficiency and correctness of the secondary virtual loop are improved, and stable and reliable operation of the secondary system of the intelligent transformer station is ensured.
Owner:NARI TECH CO LTD +3

Secondary circuit closed loop monitoring system based on GOOSE input end mapping mechanism

InactiveCN103618384ARealize secondary circuit closed-loop monitoringCircuit arrangementsVirtual terminalElectric power system
The invention provides a secondary circuit closed loop monitoring system based on a GOOSE input end mapping mechanism in the technical field of power systems. The secondary circuit closed loop monitoring system comprises a network communication module, a model analyzing module, a pattern generating module, a real-time comparing module and a data storage module. The model analyzing module analyzes SCD files from the network communication module, outputs an obtained static model of an IED device virtual terminal/virtual circuit to the pattern generating module, maps a GOOSE message feature value and a GOOSE input terminal to mapping definitions of a corresponding MMS model object, and outputs the mapping definitions to the real-time comparing module. According to an IED device standard drawing template prestored in the data storage module and the static model of an IED device virtual terminal/virtual circuit in the model analyzing module, by means of a template matching technology, the pattern generating module carries out matching on the IED device standard drawing template to generate an IED device secondary circuit diagram, and output the IED device secondary circuit diagram to the data storage module for visual display. According to the system, abnormal conditions of a secondary circuit and abnormal situations of a GOOSE control block, a dataset, goIDs and other key content can be found timely according to abnormality of a GOOSE message. Secondary circuit closed loop monitoring based on the GOOSE input end mapping mechanism is achieved, and reliable technical guarantee is provided for safe operation of an intelligent substation.
Owner:SHANGHAI YIHAO AUTOMATION CO LTD

Intelligent substation simulation system in panoramic replace mode and integration testing method for intelligent substation simulation system

ActiveCN103176084AImprove performanceSimplify the integration testing processElectrical testingVirtual terminalData simulation
The invention discloses an intelligent substation simulation system based on a panoramic replace mode and an integration testing method for the intelligent substation simulation system. The intelligent substation simulation system is characterized in that the panoramic data simulation system comprising special third-party devices or PCs (personal computers) replaces actual secondary equipment of a substation, all interactive data of information of the total substation are simulated by SCD (substation configuration description) files imported into the total substation, information interaction between the intelligent substation simulation system and tested equipment is carried out, and the correctness of configuration of the tested equipment and even the integral system, the correctness of virtual terminals and the correctness of special properties are verified. The intelligent substation simulation system and the integration testing method have the advantages that the fixed simulation devices replace large quantities of actual engineering equipment in the integration testing method in the intelligent substation panoramic replace mode, troublesome operation for panel transportation, system construction, network connection and the like in an integration testing procedure is omitted, adverse effects due to errors when large quantities of engineering devices are manually configured can be avoided, an integration testing process is simplified, a large quantity of testing time is saved, the integration testing efficiency is improved, integration tests can be carried out in a large scale advantageously, and requirements of large-scale construction for intelligent substations are met.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +2

Automatic mapping monitoring system and method of intelligent substation secondary virtual loop

The invention discloses an automatic mapping monitoring system and method of an intelligent substation secondary virtual loop. The method comprises the steps of: firstly, obtaining an SCD file for reading all station devices and carrying out analysis to obtain an included data models and connection relations corresponding to switches and virtual loop devices; creating pixels corresponding to different switches and virtual loop devices so as to form a pixel database; establishing a mapping correlation between the switch pixels and the switches, generating a switch network map indicating switch link connection relations, establishing a mapping correlation between the virtual loop device pixels and the devices, and generating a virtual terminal connection map indicating device link topological connection relations, with an interval serving as a unit; and finally, receiving real-time virtual loop link states uploaded by devices in the intelligent substation in real-time, updating the corresponding switch network map and virtual terminal connection map, and monitoring the link states online. According to the invention, the mapping efficiency of the switch connection map and the virtual terminal connection map can be improved, the online real-time monitoring level is increased, and the operation and maintenance efficiency of the secondary virtual loop is improved effectively.
Owner:NANJING GUODIAN NANZI POWER GRID AUTOMATION CO LTD

Media data communication method and apparatus

The embodiments of the invention provide a media data communication method and apparatus. In an internet of scenes, an internet of scenes terminal is accessed to an internet of scenes server; the internet of scenes server and an internet of scenes gateway are accessed to an internet of scenes gateway management platform; in an internet, an internet terminal is connected to the internet of scenes gateway; and the method comprises the steps of enabling the internet of scenes gateway management platform to apply to the internet of scenes gateway for a first virtual terminal located in the internet of scenes and a second virtual terminal located in the internet when the internet of scenes terminal performs communication with the internet terminal; and enabling the internet of scenes gateway management platform to relocate the first virtual terminal to establish a call connection with the internet of scenes terminal, and to relocate the second virtual terminal to establish a call connectionwith the internet of scenes terminal, so that the internet of scenes terminal performs communication of media data with the internet terminal. The identical scheduling of the internet of scenes gateway is implemented, the convenience in operation is greatly improved, and the easiness in hardware deployment and service use is improved.
Owner:海南视联通信技术有限公司
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