CN103760897A - Method for detecting equipment fault signals in automatic control system - Google Patents
Method for detecting equipment fault signals in automatic control system Download PDFInfo
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- CN103760897A CN103760897A CN201410046404.4A CN201410046404A CN103760897A CN 103760897 A CN103760897 A CN 103760897A CN 201410046404 A CN201410046404 A CN 201410046404A CN 103760897 A CN103760897 A CN 103760897A
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Abstract
The invention relates to a method for detecting equipment fault signals in an automatic control system, and belongs to the field of industrial automatic control. According to the technical scheme, the method comprises the steps that after the automatic control system shuts down due to the equipment faults, and the time when involved control signals cause the machine halt during the equipment control process is extracted, namely, the system time when the machine halt occurs is extracted; the time is correct to one scanning period of the system; a maintenance person can conveniently judge which signal causes the system halt firstly according to the occurrence sequence of the equipment fault signals, and therefore the fault can be fast solved, the time for processing the fault can be shortened as much as possible, the equipment working efficiency can be improved as much as possible, and the excessively large effect on the normal production can be avoided. The method has the advantages of having scientificity, applicability and accuracy.
Description
Technical field
The detection method that the present invention relates to equipment failure signal in a kind of automatic control system, belongs to field of industrial automatic control.
Background technology
In industrial automation control system, all kinds of control signals are tens up to a hundred, thousands of at most at least, and in these signals, any breaks down and all can cause system shutdown; Because automatic control system is based on electrical control, once it is normal that a lot of signals of system shutdown all can recover, equipment cannot be judged the parking that specifically which signal causes after stopping, thorough solution to problem brings very large difficulty, make a big impact also to normal commercial production, it is stable that even serious restriction is produced, thereby affect equipment operation rate and all kinds of economic and technical norms of enterprise.
Summary of the invention
The object of the invention is to propose the detection method of equipment failure signal in a kind of automatic control system; can be when automatic control system occurs shutting down because of equipment failure; the time that all kinds of control signals that relate in equipment control procedure are occurred takes out; and this time can be as accurate as some scan periods of system; like this when equipment fault analysis; the sequencing that just can occur according to these signals is judged; equipment failure by which signal is caused; thereby the personnel that maintain easily promptly and accurately fix a breakdown, solve the problems referred to above that background technology exists.
A detection method for equipment failure signal in automatic control system, comprises following steps:
1. time of extraction system;
The time of 1.1 extraction systems;
1.2 is string format by system time format conversion;
1.3 take out character string second in character string time format, are called time character string;
2. be accurate to some scan periods of system the time;
2.1 determine the system scan periodicity in each second;
2.2 are converted to character string type by definite periodicity, are called periodicity character string;
2.3 link together time character string and periodicity character string, form the time character string with periodicity of needs when obtaining fault-signal and occurring;
3. determine that shutting down appears in automatic control system;
3.1 determine automatic control system operation;
3.2 determine system failure shutdown;
4. determine normal running shutdown;
4.1 determine that the negative edge of the operation signal in automatic control system occurs;
The trigger pip of system time when the negative edge of the operation signal in 4.2 use automatic control systems occurs changing as this signal of taking-up, system time while taking out this signal appearance variation, guarantees to take out system time now when signal appearance changes;
5. determine equipment failure shutdown;
5.1 determine the negative edge of various types of signal in system;
The trigger pip of system time when the negative edge of signal occurs changing as this signal of taking-up in 5.2 use systems, system time while taking out this signal appearance variation, guarantees to take out system time now when signal appearance changes;
6. determine the stopping signal time of removing this record;
The signal that 6.1 clearance by hands take out;
6.2 determine that this order of classes or grades at school production time finishes;
6.3 remove the signal taking out automatically, and device signal zero clearing fault-time to this order of classes or grades at school record, detects next equipment failure.
Adopt the present invention, automatic control system, because of after to shut down appear in equipment failure, is shut down by the control signal relating in equipment control procedure the time occurring and is taken out, and takes out the time of system while occurring shutting down; Be accurate to some scan periods of system the above-mentioned time; The sequencing judgement system-down that the personnel that maintain easily like this occur according to equipment failure signal by which signal is caused at first; thereby quick solution fault; shorten as much as possible the time of handling failure and improve equipment operation rate, avoiding normal production to cause excessive impact.The method has the feature of science, applicability, accuracy.
Accompanying drawing explanation
Fig. 1: be the overhaul flow chart of equipment failure signal in automatic control system of the present invention;
Fig. 2: be the algorithm flow chart of time of automatic control system band scan period of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further:
The detection method of equipment failure signal in a kind of automatic control system, do not affecting on original automatic control process basis, by computer system and auto-control software, automatically detected, the method for the time that record trouble signal occurs automatically, the method is accurate to a scan period of system.
Concrete steps are as follows:
1. time of extraction system;
The time of 1.1 extraction systems;
1.2 is string format by system time format conversion;
1.3 take out character string second in character string time format, are called time character string;
2. be accurate to some scan periods of system the time;
2.1 determine the system scan periodicity in each second;
2.2 are converted to character string type by definite periodicity, are called periodicity character string;
2.3 link together time character string and periodicity character string, form the time character string with periodicity of needs when obtaining fault-signal and occurring;
3. determine that shutting down appears in automatic control system;
3.1 determine automatic control system operation;
3.2 determine system failure shutdown;
4. determine normal running shutdown;
4.1 determine that the negative edge of the operation signal in automatic control system occurs;
The trigger pip of system time when the negative edge of the operation signal in 4.2 use automatic control systems occurs changing as this signal of taking-up, system time while taking out this signal appearance variation, guarantees to take out system time now when signal appearance changes;
5. determine equipment failure shutdown;
5.1 determine the negative edge of various types of signal in system;
The trigger pip of system time when the negative edge of signal occurs changing as this signal of taking-up in 5.2 use systems, system time while taking out this signal appearance variation, guarantees to take out system time now when signal appearance changes;
6. determine the stopping signal time of removing this record;
The signal that 6.1 clearance by hands take out;
6.2 determine that this order of classes or grades at school production time finishes;
6.3 remove the signal taking out automatically, and device signal zero clearing fault-time to this order of classes or grades at school record, detects next equipment failure.
Claims (1)
1. a detection method for equipment failure signal in automatic control system, is characterized in that comprising following steps:
1. time of extraction system;
The time of 1.1 extraction systems;
1.2 is string format by system time format conversion;
1.3 take out character string second in character string time format, are called time character string;
2. be accurate to some scan periods of system the time;
2.1 determine the system scan periodicity in each second;
2.2 are converted to character string type by definite periodicity, are called periodicity character string;
2.3 link together time character string and periodicity character string, form the time character string with periodicity of needs when obtaining fault-signal and occurring;
3. determine that shutting down appears in automatic control system;
3.1 determine automatic control system operation;
3.2 determine system failure shutdown;
4. determine normal running shutdown;
4.1 determine that the negative edge of the operation signal in automatic control system occurs;
The trigger pip of system time when the negative edge of the operation signal in 4.2 use automatic control systems occurs changing as this signal of taking-up, system time while taking out this signal appearance variation, guarantees to take out system time now when signal appearance changes;
5. determine equipment failure shutdown;
5.1 determine the negative edge of various types of signal in system;
The trigger pip of system time when the negative edge of signal occurs changing as this signal of taking-up in 5.2 use systems, system time while taking out this signal appearance variation, guarantees to take out system time now when signal appearance changes;
6. determine the stopping signal time of removing this record;
The signal that 6.1 clearance by hands take out;
6.2 determine that this order of classes or grades at school production time finishes;
6.3 remove the signal taking out automatically, and device signal zero clearing fault-time to this order of classes or grades at school record, detects next equipment failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046404.4A CN103760897B (en) | 2014-02-10 | 2014-02-10 | The detection method of equipment fault signal in a kind of automatic control system |
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| CN201410046404.4A CN103760897B (en) | 2014-02-10 | 2014-02-10 | The detection method of equipment fault signal in a kind of automatic control system |
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| CN103760897A true CN103760897A (en) | 2014-04-30 |
| CN103760897B CN103760897B (en) | 2016-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111243380A (en) * | 2020-01-16 | 2020-06-05 | 遵义职业技术学院 | Teaching aid display device for mathematics education |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445943A (en) * | 2011-12-20 | 2012-05-09 | 天津市优耐特汽车电控技术服务有限公司 | Development testing method for automobile electric controlling component and development testing platform |
| FR2972028A1 (en) * | 2011-02-25 | 2012-08-31 | Sncf | Fault detection method for turbocompressor on-board of railway vehicle, involves comparing amplitudes of frequency signal current with preset amplitude thresholds, and transmitting failure detection signal according to comparison results |
| CN102968113A (en) * | 2012-11-16 | 2013-03-13 | 国电南瑞科技股份有限公司 | Failure analysis and exhibition method of power generator excitation system |
| CN103105849A (en) * | 2013-01-22 | 2013-05-15 | 浙江大学 | Industrial regulating valve non-linear operating characteristic diagnosis method |
| EP2642363A2 (en) * | 2012-03-23 | 2013-09-25 | The Boeing Company | Systems and methods for signal selection and fault detection |
-
2014
- 2014-02-10 CN CN201410046404.4A patent/CN103760897B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2972028A1 (en) * | 2011-02-25 | 2012-08-31 | Sncf | Fault detection method for turbocompressor on-board of railway vehicle, involves comparing amplitudes of frequency signal current with preset amplitude thresholds, and transmitting failure detection signal according to comparison results |
| CN102445943A (en) * | 2011-12-20 | 2012-05-09 | 天津市优耐特汽车电控技术服务有限公司 | Development testing method for automobile electric controlling component and development testing platform |
| EP2642363A2 (en) * | 2012-03-23 | 2013-09-25 | The Boeing Company | Systems and methods for signal selection and fault detection |
| CN102968113A (en) * | 2012-11-16 | 2013-03-13 | 国电南瑞科技股份有限公司 | Failure analysis and exhibition method of power generator excitation system |
| CN103105849A (en) * | 2013-01-22 | 2013-05-15 | 浙江大学 | Industrial regulating valve non-linear operating characteristic diagnosis method |
Non-Patent Citations (2)
| Title |
|---|
| 倪远平: "工业自动控制系统的故障检测与诊断方法", 《云南电力技术》, vol. 25, no. 3, 31 March 1995 (1995-03-31), pages 23 - 27 * |
| 张玉红: "故障诊断与预防", 《现代制造》, no. 19, 31 October 2003 (2003-10-31), pages 14 - 17 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111243380A (en) * | 2020-01-16 | 2020-06-05 | 遵义职业技术学院 | Teaching aid display device for mathematics education |
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| CN103760897B (en) | 2016-06-29 |
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