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Dual-machine switching device for remote workstation

A remote control workstation, dual-machine switching technology, applied in circuit devices, program control design, instruments, etc., can solve the problem of not being able to notify the standby machine in time, and achieve the effect of shortening the time for successful switching

Active Publication Date: 2008-09-10
长园深瑞继保自动化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fundamental reason is that once the main machine suddenly loses power, its work will stop completely, and neither the event sent by the measurement and control device nor the event sent to the dispatcher can be notified in time to the standby machine.

Method used

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  • Dual-machine switching device for remote workstation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: The method for two-machine switching of the telecontrol workstation of the present invention, the telecontrol workstation hardware adopts: Shenzhen Nanrui Technology Co., Ltd. ISA301C type telecontrol workstation, the main control software system adopts VxWorks, and adopts C programming language to realize.

Embodiment 2

[0037] Embodiment 2: The method for the dual-computer switching of the telecontrol workstation of the present invention, the telecontrol workstation hardware adopts: Siemens industrial computer IL43, the main control software system adopts linux, adopts C programming language to realize.

[0038] After receiving the event sent by the measurement and control device of the substation monitoring system, the main and standby machine event processing modules queue up to form an "event record queue" command:

[0039] / / ================================================= =================

[0040] / / Form SOE event record

[0041] / / wIndexYX_All exceeds the allowable range, it is considered as a common remote letter, and the position of the full remote letter library is recalculated

[0042] BOOLEAN Event_FormRecordSOE(WORD wUnitID, WORD wChannel,

[0043] WORD wIndexYX_All, BYTE byStatus, tagPTimeBCD ptTimeAct)

[0044] {

[0045] tagPTypeSet ptTypeSet;

[0046] ...

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Abstract

The invention discloses a telecontrol workstation double-processor switchover device and technical problems thereof needing to be solved are to ensure no transmission leakage and no extra data transmission happen when a host telecontrol workstation and a standby telecontrol workstation are in the state of double-processor switchover. The device of the invention is provided with the host telecontrol workstation and the standby telecontrol workstation which are respectively provided with an event handling module and a double-processor communication module; the double-processor communication modules of the host telecontrol workstation and the standby telecontrol workstation are connected and a double-processor dispatching information synchronization module is arranged and connected between the double-processor communication modules and the event handling modules of the host telecontrol workstation and the standby telecontrol workstation. Compared with the prior art, the double-processor dispatching information synchronization module of the host telecontrol workstation and the standby telecontrol workstation lines events received by the event handling module, detects whether the event handling module sends events to a remote dispatching system, marks or deletes events sent out from the event line, and then notices the standby unit of the event line by the double-processor communication module and the content received by the host is operated at the same time, thus no transmission leakage and no extra data transmission are realized.

Description

technical field [0001] The invention relates to a power system communication device, in particular to a dual-machine switching device for a substation communication monitoring device. technical background [0002] In the substation monitoring system, the remote control workstation is responsible for collecting the data of all acquisition and measurement and control equipment in the substation, and uploading to the remote dispatching system (including provincial dispatching, local dispatching, etc.), and also receiving commands issued by the remote dispatching system and forwarding them to the monitoring and control system The device realizes the remote control function, and all remote control workstations play an important role in "uploading and distributing" in the substation. Because of its important role, the substation monitoring system generally adopts the double remote control workstation mode, and the two machines are mutually standby to improve reliability. In the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00G06F9/00H04L29/02
CPCY02E60/723Y04S10/16Y02E60/00
Inventor 施江涛廖辉周作超
Owner 长园深瑞继保自动化有限公司
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