CN203643114U - Intelligent fault diagnosis system based on immune detector - Google Patents
Intelligent fault diagnosis system based on immune detector Download PDFInfo
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- CN203643114U CN203643114U CN201320661156.5U CN201320661156U CN203643114U CN 203643114 U CN203643114 U CN 203643114U CN 201320661156 U CN201320661156 U CN 201320661156U CN 203643114 U CN203643114 U CN 203643114U
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- acquisition device
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- intelligent fault
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Abstract
The utility model provides an intelligent fault diagnosis system based on an immune detector comprising a vibration acquisition device. A plurality of vibration sensors are respectively disposed on corresponding parts of a to-be-detected set. Each of the vibration sensors comprises a permanent magnet pedestal, a vibration cavity disposed in the permanent magnet pedestal, a vibration sensing unit disposed on the bottom part of the vibration cavity, and a point positioning device used for locating the vibration sensor. A processing device is used for acquiring signals acquired by the vibration acquisition device, and can be used for the corresponding control over the set to be detected.
Description
Technical field
The utility model relates to a kind of Intelligent Fault Diagnose Systems based on immune detectors.
Background technology
At present both at home and abroad fault signature in mechanical fault time domain and the existing diagnostic system of frequency domain is extracted and classification is difficult to and the situation of inline diagnosis difficulty, because equipment failure causes security incident, cause heavy losses.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of Intelligent Fault Diagnose Systems based on immune detectors, effectively solves the problem that in existing diagnostic device, fault-signal classification is inaccurate, Diagnostic Time is long.The utlity model has single failure, combined failure and initial failure that industrial unit is occurred and carry out effective measuring ability, rate of accuracy reached more than 98%, can be carried out fault detect to multiple units simultaneously.
To this, the utility model provides a kind of Intelligent Fault Diagnose Systems based on immune detectors, comprising: vibration acquisition device, comprising: multiple vibration transducers that are separately positioned on unit corresponding site to be detected; Described vibration transducer comprises: permanent magnet base, is arranged on vibration cavity on described permanent magnet base, is arranged on the vibrating sensing unit of described vibration cavity bottom, and for locating the location device of this vibration transducer; Treating apparatus, for collecting the collected signal of described vibration acquisition device, and controls unit to be detected accordingly accordingly.
Wherein, described location device refers to, for example, adopts a bolt, and this bolt point position is fixed, and vibration transducer can rotate around this point.
Described vibration cavity, refers to the housing with inner space, not only can hold vibrating sensing unit, and can effectively collect vibration signal.
Accordingly, the utility model also provides a kind of method for diagnosing faults of the Intelligent Fault Diagnose Systems based on immune detectors, comprising: vibration signals collecting step, is arranged on unit corresponding site to be detected by described vibration transducer, for gathering vibration information; Characteristic extraction step, carries out analyzing and processing to the vibration signal of described vibration transducer collection, obtains fault characteristic parameter; Matching judgment step, mates the fault characteristic parameter in described characteristic extraction step with fault data pre-stored in described server; Deposit knowledge base step in, deposit the fault characteristic parameter that in described matching judgment step, it fails to match in knowledge base; Immune detectors step of updating, arrives immune detectors by the described fault characteristic Parameter storage that deposits new storage in knowledge base step in, to upgrade immune detectors; Tracing trouble and type step, by described matching judgment step, the match is successful, result shows in described supervisory control comuter.
Refer to based on immune detectors, for the operator's console of workshop a large amount of that use, machine part is mutually related, by construct a kind of meet artificial immune system diversity, distributivity principle efficiently, immune detectors efficiently, obtain optimum antibody by the evolution of antibody collection, obtain the new feature index of best identified ability, solve the problem of classification capacity deficiency.
The utility model, as the core of this immune detectors, is mainly a large amount of various fault characteristic informations that use, that be mutually related machine part of operator's console that obtain workshop.How effectively to obtain various fault characteristic informations, be one of key of the Intelligent Fault Diagnose Systems validity based on immune detectors.
In general, whether the fault of machine to be, the vibration height correlation at position each with it, and the measurement parameter that the utility model sets is to vibrate.This measurement requires to select measures the most responsive Diagnostic parameters of fault reflection, this parameter be called as " sensitive factor " be exactly in the time of machine state generation small variations characteristic parameter but have greatly changed.
Described treating apparatus can by construct a kind of meet artificial immune system diversity, distributivity principle efficiently, immune detectors efficiently, obtain optimum antibody by the evolution of antibody collection, obtain the new feature index of best identified ability, solve the problem of classification capacity deficiency.
System is embedded on the operator's console of workshop and can uses, convenient, easily realize, can realize the detection and diagnosis to multiple industrial units simultaneously.From the situation of system operation, effectively detection and diagnosis unit fault, the requirement of the normal operation of guarantee equipment.
Choice arrangement measuring point requires: 1. to vibration reaction sensitive spot, as far as possible near vibration source, avoid or reduce interface, cavity or the spacer of signal in transmission channels (as airtight and watertight padding etc.), preferably allowing the signal propagation that is in line, reducing the energy loss of signal in transmittance process.2. the position of selecting vibration signal relatively to concentrate, to obtain more status information.3. selected measuring point will submit to diagnostic purpose, diagnostic purpose difference, and measuring point also should change position thereupon.4. measuring point must have enough spaces to be used for placement sensor, and ensures good contact.Also should there be enough rigidity at measuring point position.5. because on-the-spot vibration survey is to carry out the equipment operation in the situation that, so must guarantee the person and device security in the time of placement sensor.Conventionally bearing is first-selected measuring point, and in addition, the positions such as the lower margin of equipment, casing, cylinder body, import and export pipeline, valve, basis are also the standing measuring points of vibration.
Adopt technique scheme, owing to adopting permanent magnet base to be connected with tested position easily, and it is also very easy to use location device to install, and is convenient to install.The more important thing is, show through test, adopt permanent magnet base to connect tested position and be conducive to the more effective vibration of measuring.But, under the environment of Long-term Vibration, permanent magnet base can produce displacement, affects monitoring accuracy, has therefore increased a location device simultaneously, can make this vibration transducer within the specific limits, be unlikely to partially too far away, reduced maintenance cost, simultaneously, this scope also becomes a monitoring parameter, can reflect the working condition of machine.Show through test, adopted vibration cavity body can obtain better detection effect.
Preferably, described vibration transducer adopts acceleration transducer.
Preferably, described acceleration transducer frequency range is 10 to 100KHz.
Adopt technique scheme, because vibration survey requires to select, the most responsive Diagnostic parameters of fault reflection is measured, this parameter is called as " sensitive factor ", and in the time of machine state generation small variations, characteristic parameter but has greatly changed exactly.Therefore each fault-signal is determined to a sensitive factor is impossible.Select Diagnostic parameters according to the frequecy characteristic of diagnosis object vibration signal, conventional vibration measuring parameters has acceleration, speed, displacement, generally selects by following principle: low-frequency vibration <100Hz adopts displacement; Middle frequency vibration 10～1000Hz adopts speed; Dither >1000Hz adopts acceleration.The frequency response range of acceleration transducer is that 10KHz is wider, thus when in-site measurement in the situation that there is no particular/special requirement, conventional it measure displacement, speed, three parameters of acceleration simultaneously, substantially can meet the demands.
Preferably, described treating apparatus comprises: server, is connected the fault data gathering for storing described vibration acquisition device with described vibration acquisition device; And supervisory control comuter, be connected with described server, for the fault data that shows that described vibration acquisition device gathers.
Adopt technique scheme, system has single failure, combined failure and initial failure that industrial unit is occurred and carries out effectively online detection, inline diagnosis, effectively solves the long problem of Diagnostic Time in existing diagnostic system.
Compared with prior art, the utility model has the advantage of, the utlity model has on-line monitoring, inline diagnosis function, single failure, combined failure, the initial failure that can occur unit are carried out effective detection and diagnosis, accuracy rate of diagnosis is more than 98%, has the feature in linearity, real-time, rapidity simultaneously; System is embedded on the operator's console of workshop and can uses, convenient, easily realize, can realize the detection and diagnosis to multiple industrial units simultaneously.From the situation of system operation, effectively detection and diagnosis unit fault, the requirement of the normal operation of guarantee equipment.
Brief description of the drawings
Fig. 1 is the schematic diagram of the Intelligent Fault Diagnose Systems a kind of embodiment of the utility model based on immune detectors;
Fig. 2 is the schematic diagram of the another kind of embodiment of the Intelligent Fault Diagnose Systems of the utility model based on immune detectors;
Fig. 3 is the schematic diagram of the another kind of embodiment of the Intelligent Fault Diagnose Systems of the utility model based on immune detectors;
Fig. 4 is the schematic diagram of the intelligent failure diagnosis method a kind of embodiment of the utility model based on immune detectors.
Embodiment
Below in conjunction with accompanying drawing, preferably embodiment of the present utility model is described in further detail:
As shown in Figure 1, 2, vibration acquisition device 1, comprising: multiple vibration transducers 11 that are separately positioned on unit corresponding site to be detected; Described vibration transducer 11 comprises: permanent magnet base 111, is arranged on vibration cavity 112 on described permanent magnet base 111, is arranged on the vibrating sensing unit 113 of described vibration cavity 112 bottoms, and for locating the location device 114 of this vibration transducer 11; Treating apparatus 2, for collecting the collected signal of described vibration acquisition device 1, and controls unit to be detected accordingly accordingly.
Wherein, described location device 114 refers to, for example, adopts a bolt, and this bolt point position is fixed, and vibration transducer can rotate around this point.
Described vibration cavity 112, refers to the housing with inner space, not only can hold vibrating sensing unit 113, and can effectively collect vibration signal.
Refer to based on immune detectors, for the operator's console of workshop a large amount of that use, machine part is mutually related, by construct a kind of meet artificial immune system diversity, distributivity principle efficiently, immune detectors efficiently, obtain optimum antibody by the evolution of antibody collection, obtain the new feature index of best identified ability, solve the problem of classification capacity deficiency.
The utility model, as the core of this immune detectors, is mainly a large amount of various fault characteristic informations that use, that be mutually related machine part of operator's console that obtain workshop.How effectively to obtain various fault characteristic informations, be one of key of the Intelligent Fault Diagnose Systems validity based on immune detectors.
In general, whether the fault of machine to be, the vibration height correlation at position each with it, and the measurement parameter that the utility model sets is to vibrate.This measurement requires to select measures the most responsive Diagnostic parameters of fault reflection, this parameter be called as " sensitive factor " be exactly in the time of machine state generation small variations characteristic parameter but have greatly changed.
Described treating apparatus 2 can by construct a kind of meet artificial immune system diversity, distributivity principle efficiently, immune detectors efficiently, obtain optimum antibody by the evolution of antibody collection, obtain the new feature index of best identified ability, solve the problem of classification capacity deficiency.
System is embedded on the operator's console of workshop and can uses, convenient, easily realize, can realize the detection and diagnosis to multiple industrial units simultaneously.From the situation of system operation, effectively detection and diagnosis unit fault, the requirement of the normal operation of guarantee equipment.
Choice arrangement measuring point requires: 1. to vibration reaction sensitive spot, as far as possible near vibration source, avoid or reduce interface, cavity or the spacer of signal in transmission channels (as airtight and watertight padding etc.), preferably allowing the signal propagation that is in line, reducing the energy loss of signal in transmittance process.2. the position of selecting vibration signal relatively to concentrate, to obtain more status information.3. selected measuring point will submit to diagnostic purpose, diagnostic purpose difference, and measuring point also should change position thereupon.4. measuring point must have enough spaces to be used for placement sensor, and ensures good contact.Also should there be enough rigidity at measuring point position.5. because on-the-spot vibration survey is to carry out the equipment operation in the situation that, so must guarantee the person and device security in the time of placement sensor.Conventionally bearing is first-selected measuring point, and in addition, the positions such as the lower margin of equipment, casing, cylinder body, import and export pipeline, valve, basis are also the standing measuring points of vibration.
Adopt technique scheme, owing to adopting permanent magnet base 111 to be connected with tested position easily, and it is also very easy to use location device 114 to install, and is convenient to install.The more important thing is, show through test, adopt permanent magnet base 111 to connect tested position and be conducive to the more effective vibration of measuring.But, under the environment of Long-term Vibration, permanent magnet base 111 can produce displacement, affects monitoring accuracy, has therefore increased a location device 114 simultaneously, can make this vibration transducer 11 within the specific limits, be unlikely to partially too far away, increased maintenance cost, simultaneously, this scope also becomes a monitoring parameter, can reflect the working condition of machine.Show through test, adopted vibration cavity 112 can obtain better detection effect.
Preferably, described vibration transducer 11 adopts acceleration transducer.
Preferably, described acceleration transducer frequency range is 10 to 100KHz.
Adopt technique scheme, because vibration survey requires to select, the most responsive Diagnostic parameters of fault reflection is measured, this parameter is called as " sensitive factor ", and in the time of machine state generation small variations, characteristic parameter but has greatly changed exactly.Therefore each fault-signal is determined to a sensitive factor is impossible.Select Diagnostic parameters according to the frequecy characteristic of diagnosis object vibration signal, conventional vibration measuring parameters has acceleration, speed, displacement, generally selects by following principle: low-frequency vibration <100Hz adopts displacement; Middle frequency vibration 10～1000Hz adopts speed; Dither >1000Hz adopts acceleration.The frequency response range of acceleration transducer is that 10KHz is wider, thus when in-site measurement in the situation that there is no particular/special requirement, conventional it measure displacement, speed, three parameters of acceleration simultaneously, substantially can meet the demands.
As shown in Figure 3, described treating apparatus 2 comprises: server 21, is connected the fault data gathering for storing described vibration acquisition device 1 with described vibration acquisition device 1; With supervisory control comuter 22, be connected with described server 21, for the fault data that shows that described vibration acquisition device 1 gathers.
Adopt technique scheme, system has single failure, combined failure and initial failure that industrial unit is occurred and carries out effectively online detection, inline diagnosis, effectively solves the long problem of Diagnostic Time in existing diagnostic system.
As shown in Figure 4, adopt the method for diagnosing faults of the described Intelligent Fault Diagnose Systems based on immune detectors, comprising:
Vibration signals collecting step, is arranged on unit corresponding site to be detected by described vibration transducer 11, for gathering vibration information;
Characteristic extraction step, the vibration signal that described vibration transducer 11 is gathered carries out analyzing and processing, obtains fault characteristic parameter;
Matching judgment step, mates the fault characteristic parameter in described characteristic extraction step with fault data pre-stored in described server 21;
Deposit knowledge base step in, deposit the fault characteristic parameter that in described matching judgment step, it fails to match in knowledge base;
Immune detectors step of updating, arrives immune detectors by the described fault characteristic Parameter storage that deposits new storage in knowledge base step in, to upgrade immune detectors; Tracing trouble and type step, by described matching judgment step, the match is successful, result shows in described supervisory control comuter 22.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (4)
1. the Intelligent Fault Diagnose Systems based on immune detectors, is characterized in that, comprising:
Vibration acquisition device (1), comprising: multiple vibration transducers (11) that are separately positioned on unit corresponding site to be detected; Described vibration transducer (11) comprising: permanent magnet base (111), is arranged on vibration cavity (112) on described permanent magnet base (111), is arranged on the vibrating sensing unit (113) of described vibration cavity (112) bottom, and for locating the location device (114) of this vibration transducer (11);
Treating apparatus (2), for collecting the collected signal of described vibration acquisition device (1), and controls unit to be detected accordingly accordingly.
2. the Intelligent Fault Diagnose Systems based on immune detectors as claimed in claim 1, is characterized in that, described vibration transducer (11) adopts acceleration transducer.
3. the Intelligent Fault Diagnose Systems based on immune detectors as claimed in claim 2, is characterized in that, described acceleration transducer frequency range is 10 to 100KHz.
4. the Intelligent Fault Diagnose Systems based on immune detectors as claimed in claim 1, it is characterized in that, described treating apparatus (2) comprising: server (21), is connected the fault data gathering for storing described vibration acquisition device (1) with described vibration acquisition device (1); And supervisory control comuter (22), be connected with described server (21), for the fault data that shows that described vibration acquisition device (1) gathers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320661156.5U CN203643114U (en) | 2013-10-24 | 2013-10-24 | Intelligent fault diagnosis system based on immune detector |
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| CN201320661156.5U CN203643114U (en) | 2013-10-24 | 2013-10-24 | Intelligent fault diagnosis system based on immune detector |
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| CN203643114U true CN203643114U (en) | 2014-06-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528783A (en) * | 2013-10-24 | 2014-01-22 | 广东技术师范学院 | Intelligent fault diagnosis system based on immunity detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528783A (en) * | 2013-10-24 | 2014-01-22 | 广东技术师范学院 | Intelligent fault diagnosis system based on immunity detector |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20141024 |
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| EXPY | Termination of patent right or utility model |