Telemetry link on-line detecting system of scheduling automated system

A technology for dispatching automation and telecontrol channels, which is applied in the direction of telephone communication, electrical components, fault locations, etc., can solve the problems of fault detection that cannot be telecontrolled, and the scheduling automation system does not have a suitable detection system, etc. Simple and novel, accurate detection data effect

Inactive Publication Date: 2009-05-06
JIANGSU ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is: there is no suitable detection system for the operation detection of the existing dispatching automation system, and the failure of the telecontrol channel cannot be quickly detected

Method used

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  • Telemetry link on-line detecting system of scheduling automated system
  • Telemetry link on-line detecting system of scheduling automated system
  • Telemetry link on-line detecting system of scheduling automated system

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Embodiment Construction

[0013] At present, the dispatching automation system channels include analog channels, digital channels and network channels. like figure 1 , the present invention includes an analog channel detection module, a digital channel detection module and a network channel detection module, and the outputs of the three detection modules are input into a computer after being converted into a circuit; the present invention will be specifically described below in conjunction with the accompanying drawings.

[0014] The analog channel of the dispatching automation system is a four-wire circuit of pulse code modulation PCM in optical fiber digital communication equipment. The channel frequency band is 300~3400Hz, and the telecontrol transmission frequency band is above 2600Hz, usually two frequencies of 3000±150Hz. Corresponding settings There is a 2600Hz high-pass filter, and because the telecontrol transmission frequency band is above 2600Hz, a 2400Hz low-pass filter is selected as the l...

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Abstract

The invention relates to a telecontrol channel on-line detecting system of a scheduling automatic system, which comprises an analog channel detecting module, a digital channel detecting module and a network channel detecting module, and the output of the three detecting modules is input into a computer through a converting circuit. The invention aims at the problem of telecontrol detection with delay to provide the channel detecting system controlled by the computer, and the quality and the index of a telecontrol channel can be detected on line at any moment. The system detects an analog channel by a loop channel method, detects a digital channel by an accessory channel method and detects a network channel by a server landing method, and then, detecting results are collected to the computer, are controlled by a program instruction and are programmed by adopting high-level languages. The telecontrol channel on-line detecting system has the advantages of visual operation interface, simple and novel detecting method, accurate detecting date and high detecting speed and can complete fault detection in one minute.

Description

technical field [0001] The invention belongs to the technical field of dispatching automation systems of power grids, in particular to an online detection system for telecontrol channels of dispatching automation systems. Background technique [0002] During the real-time operation of the dispatching automation system, some faults may be encountered. For example, the substation operation monitoring personnel report that the telemetry data and telesignal status of a certain substation are not refreshed, or sometimes refreshed and sometimes not refreshed, that is, the system has error codes, and the on-duty dispatcher The staff reported that the remote control preset could not receive the back-to-school signal and so on. At this time, it is often impossible to distinguish whether it is a failure of the remote control channel, a failure of the remote control device, or a synchronization problem of the devices at both ends. There is a need for a technical solution that can dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08H04M11/00
Inventor 周俊礼赵红芳陈婧
Owner JIANGSU ELECTRIC POWER CO
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