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Fault diagnosis and fault tolerance control method and system used for material tracking system

A fault diagnosis and tracking system technology, applied in the direction of lighting and heating equipment, furnace types, furnaces, etc., can solve the problems of grating equipment material tracking information confusion, no automatic compensation recovery mechanism, manual adjustment, etc., to achieve enhanced fault diagnosis and fault tolerance, prolonging high-efficiency production time, and reducing maintenance work

Inactive Publication Date: 2014-04-09
WISDRI WUHAN AUTOMATION
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Problems solved by technology

[0006] The purpose of this paper is to provide a fault diagnosis and fault-tolerant control method and system for the material tracking system of a roller hearth heat treatment furnace. Unnecessary material tracking information confusion caused by equipment failure and material tracking information confusion can only be adjusted manually without subsequent automatic compensation recovery mechanism

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  • Fault diagnosis and fault tolerance control method and system used for material tracking system
  • Fault diagnosis and fault tolerance control method and system used for material tracking system

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Embodiment Construction

[0034] Such as figure 1 Furnace material tracking structure shown.

[0035] The heat treatment furnace is equipped with 4 gratings along the process direction of the production line, and there are 30 roller tables in total. Each roller table is driven by a frequency converter. With the 1# roller table as the origin, and the distance between the rollers is 600mm, all the gratings and roller tables can be obtained. The specific position of the 1# roller table.

[0036] This embodiment provides a fault diagnosis and fault-tolerant control method for a material tracking system, the steps of which are:

[0037] 1. First set the required parameters;

[0038] The parameters that need to be set include: grating sampling period, grating health weight , raster health weight , Flashing error signal threshold 最大值 , Flashing error signal threshold 最小值 , long time false signal threshold 最大值 , long time false signal threshold 最小值 , Raster health warning line, minimum delay...

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Abstract

The invention provides a fault diagnosis and fault tolerance control method and system used for a material tracking system. The control method reduces the possibility of in-furnace material tracking abnormality due to the grating error signals by quality analysis of the collected grating real-time signals, achieves the purpose of fault diagnosis of the in-furnace material tracking system, and achieves the purpose of fault tolerance control of the material tracking system by direct compensation of actual steel plate positions. The fault diagnosis results can be displayed in real time on a man-machine interface. In case of emergency, the material tracking position can be modified directly and manually regardless of all the links. The invention also provides a system for implementing the method. The method and system can solve the problem of unwarranted abnormal material tracking information due to the fault of the grating equipment and the problem of manual adjustment of the abnormal material tracking information due to the lack of subsequent automatic compensation recovery mechanism.

Description

technical field [0001] The invention belongs to the technical field of fault diagnosis and fault tolerance, and particularly relates to providing a fault diagnosis and fault tolerance control method and system for a material tracking system of a roller hearth heat treatment furnace. technical background [0002] The roller hearth heat treatment furnace has a large furnace length, high production efficiency, good quality of processed steel, high degree of mechanization and automation, so it is widely used in the production of metallurgy and machinery industries. The material tracking system is the basis for the normal operation of the roller hearth heat treatment furnace. It provides basic material tracking position information for other subsystems (temperature curve control system, secondary model control system) in the roller hearth heat treatment furnace control system. Position tracking calculation is very important in the production process, and its accuracy and stabili...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B9/30F27B9/40
Inventor 祝威王胜勇卢家斌李传涛李四川李海东赵德力
Owner WISDRI WUHAN AUTOMATION
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