Low-cost unattended automatizing system

A comprehensive automation and low-cost technology, applied in the direction of general control system, control/regulation system, program control, etc., can solve the problem of small substation control scale, and achieve the effect of reliable performance, high cost performance and reliable control function

Inactive Publication Date: 2004-04-21
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small control scale of small and medium-sized hydropower stations and substations, it is difficult to popularize and use the expensive unattended integrated automation system in these places

Method used

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  • Low-cost unattended automatizing system
  • Low-cost unattended automatizing system
  • Low-cost unattended automatizing system

Examples

Experimental program
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Effect test

Embodiment Construction

[0011] see figure 1 , the core part of the entire control system of the present invention is the PLC programmable controller 1 (Siemens S7-226CPU), the analog expansion module 2 (EM231) is used to collect analog quantities, and the PLC itself has switch nodes, input and output nodes, The PLC can be expanded if more nodes are required. PLC (S7-226 CPU) has two communication ports, and there are two ways to communicate with the host computer: MPI port communication mode and free port communication mode. PLC controls according to the state of the collected variables and its own program flow. If the system needs to operate or there is an abnormality, it will use the public telephone network 9 to communicate with the administrator's mobile phone 10, fixed phone 11 or network through the remote monitoring interface 8. The computer 13 (the computer 13 accesses the Internet through the MODEM12) is connected, and the management personnel can realize the start and stop of the remote co...

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Abstract

An unattended automatic system is composed of centrol control module (CPU S7226), electric sampling module (TOP 9500), man-machine interface module (TP 170A and / or PC), and remote monitor interface, all of which are connected via RS 485 bus. Its advantages include distributed structure, high P / C ratio and high reliability.

Description

technical field [0001] The invention relates to a low-cost unattended integrated automation system. Background technique [0002] my country has a vast territory, and a large number of electric power and communication facilities such as small hydropower stations, small wind power stations, substations, microwave stations, etc. are located in remote areas, and the working conditions and life are very difficult. The man-on-duty integrated automation system enables unmanned on-duty occasions, reduces labor intensity, liberates productivity, improves labor productivity, and ensures safe and reliable operation of equipment. [0003] At present, the unattended integrated automation systems used at home and abroad are usually expensive, and are generally suitable for the work of some large hydropower stations and substations. For the vast number of small hydropower stations and substations that are inconvenient to manage and are located in remote areas, there is a need to realize u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/00
Inventor 周洪杨辰冯斌胡海涛
Owner WUHAN UNIV
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