CN106681303A - Boiler central control system line fault warning method based on decision tree system - Google Patents
Boiler central control system line fault warning method based on decision tree system Download PDFInfo
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- CN106681303A CN106681303A CN201611239771.1A CN201611239771A CN106681303A CN 106681303 A CN106681303 A CN 106681303A CN 201611239771 A CN201611239771 A CN 201611239771A CN 106681303 A CN106681303 A CN 106681303A
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- central control
- control system
- boiler
- decision tree
- line fault
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a boiler central control system line fault warning method based on decision tree system; the boiler central control system line fault warning method comprises the steps of (1) acquiring boiler room environment and boiler operation parameter data A, acquiring boiler central control system line fault critical value B, and establishing central control system line fault error rate table T; (2) establishing a decision tree system and a reference system, and subjecting the decision tree system and the reference system to logic matching; (3) acquiring by an electronic sensor, real-time boiler central control system line data, and transmitting to the decision tree system to obtain central control system line fault high and low value probability P; (4) if P is greater than 0.8, giving a warning reminder by a console; (5) confirming by a boiler worker after receiving the warning reminder transmitted by the console, determining that the decision tree system makes a wrong judgment if the boiler central control system line is faulted after the confirming, and correcting the decision tree system. The boiler central control system line fault warning method provides automatic judgment on boiler central control system line faults.
Description
Technical field
The invention belongs to early warning technology field, more particularly to a kind of boiler central control system circuit based on decision tree system
Fault early warning method.
Background technology
Current domestic each central control system line fault early warning system is provided with electronic sensor prompt system.Traditional electricity
Sub- Fundamentals of Sensors are, by the high low value of central control system line fault, to be perceived the numerical value of each section by electronic sensor
Timely feed back to central control system.The height of boiler central control system line fault is learnt in work by the picture and text prompting of central control system
Value.But the corrosivity of the high temperature due to generator tube, stove water, a certain degree of impact are caused on electronic sensor so that in
Wrong estimate is caused in control system line failure value of feedback, or falsity occurs, to cause boiler staff to produce mistake
Judgement causes major accident occur.And the high electronic sensor of sensitivity is expensive, replacing is difficult, and is replaced as frequently as making
Family's very headache must be produced.So current domestic central control system line fault early warning system cannot be accurately reacted in boiler
The high low value of control system line failure.Before this most electronic sensor uses electrochemical principle to the free metal ion in water
Electrification is produced, the high low value of central control system line fault is pointed out by the transmission of the signal of telecommunication.But it is underwater gold that furnace temperature is too high
Category ion motion is active to cause certain interference to result.
The content of the invention
The purpose of the present invention is that and overcomes the deficiencies in the prior art, there is provided in a kind of boiler based on decision tree system
Control system line fault early warning method, can immediate correction electronic sensor under circumstances error in data, remind kettleman
Make the situation of personnel's central control system line fault so that staff obtains an accurate central control system line fault situation,
To guarantee the operation of boiler normal table, to extend the life-span for using of electronic sensor, the maintenance cost of boiler is reduced, realized
The automatization judgement of boiler central control system line fault, accuracy of judgement no longer needs artificial judgment, and the work for mitigating staff is strong
Degree.
To achieve these goals, the invention provides a kind of boiler central control system line fault based on decision tree system
Method for early warning, comprises the steps：
Step (1), acquisition boiler room environment and boiler operating parameter data A, then obtain boiler central control system line fault
Marginal value B, the mutual pace of learning in data A and marginal value BCorrespondence goes out error rate table t, by the number in error rate table t
Value is quantified as setting up central control system line fault error rate table T after the decimal between 0-1；
Step (2)：Central control system line fault error rate table T in step (1) is built as decision tree system skeleton
Vertical decision tree system, while the historical data for obtaining the high low value of staff's artificial judgment boiler central control system line fault is set up
Contradistinction system, carries out decision tree system and contradistinction system logic and matches；
Step (3)：Real-time boiler central control system track data is obtained by electronic sensor, and is transmitted to decision tree system
System, obtains the high low value probability P of central control system line fault after decision tree system repetition training；
Step (4)：Decision tree system judges the size of the high low value probability P of central control system line fault, if P is more than 0.8,
Then illustrate that boiler central control system circuit breaks down, result is transferred to console by decision tree system, and console provides warning and carries
Show；If P is less than 0.8, illustrate that boiler central control system circuit is normal, console will not provide alarm；
Step (5)：Boiler staff is obtained after the alarm that console sends, and to boiler system line is controlled in practice
Situation confirmed, if it is confirmed that rear boiler central control system circuit normally then illustrates decision tree system misjudgment, now boiler
Correct result is inputed to contradistinction system by staff, is corrected after now contradistinction system is matched with decision tree system logic again
Decision tree system；The decision tree system correct judgment that then illustrate if it is confirmed that rear boiler central control system circuit breaks down；
Step (6)：Repeat step (3)-(5), so constantly circulation constantly corrects decision tree system until decision tree system
Accuracy of judgement, no longer needs staff's artificial judgment boiler central control system line fault situation.
Further, the formula of decision tree system meets in step (2)：
Wherein：XSFor feedback score, XBHFor convolution constant, KXFor the converse feedback number of plies, SOFor vector convolution constant, KOHIt is fixed
Adopted vector constant collection, fpFor subset probability, bHFor counts, KhFor error in judgement counting.
Beneficial effects of the present invention：The present invention can immediate correction electronic sensor under circumstances error in data, carry
The situation of awake boiler staff central control system line fault so that staff family obtains an accurate central control system circuit
Failure condition to extend the life-span for using of electronic sensor, reduces the maintenance of boiler guaranteeing the operation of boiler normal table
Cost, realizes the automatization judgement of boiler central control system line fault, and accuracy of judgement no longer needs artificial judgment, mitigates work people
The labor intensity of member.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the embodiment of the present invention.
Specific embodiment
Invention is further illustrated below in conjunction with the accompanying drawings, but is not limited to the scope of the present invention.
Embodiment
As shown in figure 1, a kind of pre- police of boiler central control system line fault based on decision tree system that the present invention is provided
Method, comprises the steps：
Step (1), acquisition boiler room environment and boiler operating parameter data A, then obtain boiler central control system line fault
Marginal value B, the mutual pace of learning in data A and marginal value BCorrespondence goes out error rate table t, by the number in error rate table t
Value is quantified as setting up central control system line fault error rate table T after the decimal between 0-1；
Boiler room environmental data includes：Boiler room size, there is a several boilers that can be used, and the species of boiler, uses
Time, energy supply type etc..Boiler operating parameter data include furnace temperature, cigarette temperature, hydraulic pressure, vapour pressure, water inlet pump discharge, combustor
Temperature, air channel data, central control system circuit etc..
Step (2)：Central control system line fault error rate table T in step (1) is built as decision tree system skeleton
Vertical decision tree system, while the historical data for obtaining the high low value of staff's artificial judgment boiler central control system line fault is set up
Contradistinction system, carries out decision tree system and contradistinction system logic and matches；
Step (3)：Real-time boiler central control system track data is obtained by electronic sensor, and is transmitted to decision tree system
System, obtains the high low value probability P of central control system line fault after decision tree system repetition training；
Step (4)：Decision tree system judges the size of the high low value probability P of central control system line fault, if P is more than 0.8,
Then illustrate that boiler central control system circuit breaks down, result is transferred to console by decision tree system, and console provides warning and carries
Show；If P is less than 0.8, illustrate that boiler central control system circuit is normal, console will not provide alarm；
Step (5)：Boiler staff is obtained after the alarm that console sends, and to boiler system line is controlled in practice
Situation confirmed, if it is confirmed that rear boiler central control system circuit normally then illustrates decision tree system misjudgment, now boiler
Correct result is inputed to contradistinction system by staff, is corrected after now contradistinction system is matched with decision tree system logic again
Decision tree system；The decision tree system correct judgment that then illustrate if it is confirmed that rear boiler central control system circuit breaks down；
Step (6)：Repeat step (3)-(5), so constantly circulation constantly corrects decision tree system until decision tree system
Accuracy of judgement, no longer needs staff's artificial judgment boiler central control system line fault situation.
The formula of decision tree system meets in step (2)：
Wherein：XSFor feedback score, XBHFor convolution constant, KXFor the converse feedback number of plies, SOFor vector convolution constant, KOHIt is fixed
Adopted vector constant collection, fpFor subset probability, bHFor counts, KhFor error in judgement counting.
The present invention can immediate correction electronic sensor under circumstances error in data, remind in boiler staff and control
The situation of system line failure so that staff family obtains an accurate central control system line fault situation to guarantee pot
The operation of stove normal table, to extend the life-span for using of electronic sensor, reduces the maintenance cost of boiler, realizes being controlled in boiler
The automatization judgement of system line failure, accuracy of judgement no longer needs artificial judgment, mitigates the labor intensity of staff.
Ultimate principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description this
The principle of invention, of the invention without departing from the spirit and scope of the present invention also to have various changes and modifications, these changes
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent is defined.
Claims (2)
1. a kind of boiler central control system line fault method for early warning based on decision tree system, it is characterised in that including following step
Suddenly：
Step (1), boiler room environment and boiler operating parameter data A are obtained, then to obtain boiler central control system line fault critical
Value B, the mutual pace of learning in data A and marginal value BCorrespondence goes out error rate table t, by the numerical quantities in error rate table t
Turn to and central control system line fault error rate table T is set up after the decimal between 0-1；
Step (2)：Central control system line fault error rate table T in step (1) used as decision tree system skeleton, determine by foundation
Plan tree system, while the historical data for obtaining the high low value of staff's artificial judgment boiler central control system line fault sets up control
System, carries out decision tree system and contradistinction system logic and matches；
Step (3)：Real-time boiler central control system track data is obtained by electronic sensor, and is transmitted to decision tree system, certainly
The high low value probability P of central control system line fault is obtained after the training of plan tree system repeatedly；
Step (4)：Decision tree system judges the size of the high low value probability P of central control system line fault, if P is more than 0.8, says
Bright boiler central control system circuit breaks down, and result is transferred to console by decision tree system, and console provides alarm；Such as
Fruit P is less than 0.8, then illustrate that boiler central control system circuit is normal, and console will not provide alarm；
Step (5)：Boiler staff is obtained after the alarm that console sends, and to boiler system line situation is controlled in practice
Confirmed, if it is confirmed that rear boiler central control system circuit normally then illustrates decision tree system misjudgment, now boiler work
Correct result is inputed to contradistinction system by personnel, and after now contradistinction system is matched with decision tree system logic again decision-making is corrected
Tree system；The decision tree system correct judgment that then illustrate if it is confirmed that rear boiler central control system circuit breaks down；
Step (6)：Repeat step (3)-(5), so constantly circulation constantly corrects decision tree system until decision tree system judges
Accurately, staff's artificial judgment boiler central control system line fault situation is no longer needed.
2. a kind of boiler central control system line fault method for early warning based on decision tree system according to claim 1, its
It is characterised by, the formula of decision tree system meets in step (2)：
Wherein：XSFor feedback score, XBHFor convolution constant, KXFor the converse feedback number of plies, SOFor vector convolution constant, KOHFor definition to
Amount constant collection, fpFor subset probability, bHFor counts, KhFor error in judgement counting.
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| CN201611239771.1A CN106681303A (en) | 2016-12-28 | 2016-12-28 | Boiler central control system line fault warning method based on decision tree system |
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| CN201611239771.1A CN106681303A (en) | 2016-12-28 | 2016-12-28 | Boiler central control system line fault warning method based on decision tree system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104506338A (en) * | 2014-11-21 | 2015-04-08 | 河南中烟工业有限责任公司 | Fault diagnosis expert system based on decision tree for industrial Ethernet network |
| CN104535865A (en) * | 2014-12-30 | 2015-04-22 | 西安工程大学 | Comprehensive diagnosing method for operation troubles of power transformer based on multiple parameters |
| CN104820716A (en) * | 2015-05-21 | 2015-08-05 | 中国人民解放军海军工程大学 | Equipment reliability evaluation method based on data mining |
| CN106054104A (en) * | 2016-05-20 | 2016-10-26 | 国网新疆电力公司电力科学研究院 | Intelligent ammeter fault real time prediction method based on decision-making tree |
| WO2016176163A1 (en) * | 2015-04-28 | 2016-11-03 | Siemens Aktiengesellschaft | Simulation based cloud service for industrial energy management |
-
2016
- 2016-12-28 CN CN201611239771.1A patent/CN106681303A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506338A (en) * | 2014-11-21 | 2015-04-08 | 河南中烟工业有限责任公司 | Fault diagnosis expert system based on decision tree for industrial Ethernet network |
| CN104535865A (en) * | 2014-12-30 | 2015-04-22 | 西安工程大学 | Comprehensive diagnosing method for operation troubles of power transformer based on multiple parameters |
| WO2016176163A1 (en) * | 2015-04-28 | 2016-11-03 | Siemens Aktiengesellschaft | Simulation based cloud service for industrial energy management |
| CN104820716A (en) * | 2015-05-21 | 2015-08-05 | 中国人民解放军海军工程大学 | Equipment reliability evaluation method based on data mining |
| CN106054104A (en) * | 2016-05-20 | 2016-10-26 | 国网新疆电力公司电力科学研究院 | Intelligent ammeter fault real time prediction method based on decision-making tree |
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Application publication date: 20170517 |