Real time data acquisition intelligent node device of power system based on lonworks network

A technology of real-time data collection and intelligent nodes, applied in circuit devices, electrical signal transmission systems, signal transmission systems, etc., can solve problems such as waste of resources, and achieve the effects of convenient configuration, comprehensive software functions, and good reliability

Inactive Publication Date: 2005-01-12
CENT CHINA GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the improvement of automation and the development of networking in substations, there are a lot of monitoring equipmen

Method used

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  • Real time data acquisition intelligent node device of power system based on lonworks network
  • Real time data acquisition intelligent node device of power system based on lonworks network
  • Real time data acquisition intelligent node device of power system based on lonworks network

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Experimental program
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Embodiment Construction

[0052] 1. Overall design idea:

[0053]Power system equipment needs to monitor many signals, including various types of analog and switch values. The monitoring of signals mainly includes the following situations: 1. Slow variables of regular polling; 2. Action or fault signals that need to record transient waveforms initiated by trigger signals; 3. Alarm signals, etc. Considering the versatility, the node design can monitor 16 analog quantities and 16 switch quantities. The analog signals can be analog quantities such as various power sensors, vibration sensors, travel sensors, and AC and DC signals. It can be set by the software which signals are polling quantities and which are waveform signal recording quantities. The task of this intelligent real-time data acquisition node is to simultaneously collect data of multi-channel analog quantities and switching quantities, including normal operation, action and fault action (using Synchronous switch triggers the acquisition) pa...

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Abstract

The device includes data input part, data acquisition process part, and LonWorks network transmission part. DSP digit signal processor in data acquisition process part processes input data. Then, processed data are sent to network communication processor composed of LonWorks neural chip and transceiver. Collected data through network communication port configured in network communication processor and LonWorks network are communicated and transferred to up devices and other nodes. Asynchronous serial communication mode is adopted in data exchange between DSP and network communication processor. Network communication port configured by network communication processor to connect to LonWorks network is in single end mode.

Description

technical field [0001] The invention relates to a real-time data acquisition intelligent node device of a power system based on a LonWorks network, which is used for data acquisition of field equipment in the power system, and is mainly used for online monitoring of the operating conditions of operating equipment in power plants and substations of various voltage levels. Monitoring records, analysis, and alarms help power grid production, operation, and maintenance departments understand the operating status of high-voltage equipment, conduct online monitoring, prevent accidents, and provide basis for condition-based maintenance to realize real-time monitoring of the operating status of the power grid and its equipment. Background technique [0002] Fieldbus is an advanced industrial control technology, which introduces the concept of network communication and management into the field of industrial control. In essence, it is a digital communication network with digital comm...

Claims

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Application Information

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IPC IPC(8): G08C19/00H02J13/00H04L12/28
Inventor 郭贤珊胡丹晖
Owner CENT CHINA GRID
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