CN108983311A - The fault diagnosis system and method for safety check x ray generator - Google Patents
The fault diagnosis system and method for safety check x ray generator Download PDFInfo
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- CN108983311A CN108983311A CN201810509254.4A CN201810509254A CN108983311A CN 108983311 A CN108983311 A CN 108983311A CN 201810509254 A CN201810509254 A CN 201810509254A CN 108983311 A CN108983311 A CN 108983311A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000003745 diagnosis Methods 0.000 title abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 239000002480 mineral oil Substances 0.000 claims abstract description 20
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 238000013024 troubleshooting Methods 0.000 claims abstract description 4
- 238000003384 imaging method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 235000015927 pasta Nutrition 0.000 claims 1
- 238000007689 inspection Methods 0.000 abstract description 6
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 7
- 238000005070 sampling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004846 x-ray emission Methods 0.000 description 2
- 229920006385 Geon Polymers 0.000 description 1
- 206010021703 Indifference Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V13/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups G01V1/00 – G01V11/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- 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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- Analysing Materials By The Use Of Radiation (AREA)
- X-Ray Techniques (AREA)
Abstract
The invention discloses the fault diagnosis systems and method of a kind of safety check x ray generator, include at least: S1, judging whether x ray generator is opened, when x ray generator is opened, then start to execute subsequent step；S2, trouble-shooting source: specifically: judge whether the positive or negative high voltage transformer of x ray generator and voltage-multiplying circuit are normal, judge whether the mineral oil of x ray generator is revealed, judges whether the X-ray tube of x ray generator is normal；When three detections in the step are all working properly, S3 is thened follow the steps；Whether S3, cable, protective tube and the X-ray controller for detecting x ray generator are normal.The present invention is by hoping that hearing Guan observation targetedly detects the different components of x ray generator, the accuracy i.e. of the invention for improving rays safety detection apparatus x ray generator breakdown judge, improve rays safety detection apparatus reliability of operation, it is ensured that the smooth development of safety inspection work.
Description
Technical field
The invention belongs to the failures in rays safety detection apparatus systems technology field more particularly to a kind of safety check x ray generator to examine
Disconnected system and method.
Background technique
X-ray safety check equipment (also known as rays safety detection apparatus) is widely used in the weight such as airport, station, harbour, large-scale activity
Want the safety precaution in place.Such equipment is examined article using X-ray detection.X ray generator is used to produce for rays safety detection apparatus
The X-ray of raw high stable is examined article for X-ray scanning and provides basic material conditions.X ray generator power is big, electricity
Pressure is high, and stress suffered by some components is larger in circuit, and X-ray tube is electron tube, and has certain service life, in addition
Certain place use environments are poor, and lack necessary maintenance, therefore cause the failure of rays safety detection apparatus x ray generator more, shadow
Ring being normally carried out for safety inspection work.
X ray generator is made of x-ray source and X-ray controller.
System to the fan-shaped x-ray beam that inspected object is scanned is generated by the x-ray source of rays safety detection apparatus, and safety check is set
Standby x-ray source is integral, and all parts are packaged together, and is cooled down, is insulated with mineral oil.High pressure in x-ray source
+ 70KV ,-the 70KV high pressure that transformer and voltage doubling rectifing circuit generate, form 140KV between the anode and cathode of X-ray tube
High pressure.Thermionic emission is generated under high voltage electric field effect by the filament thermocurrent of filament transformer supply, forms electron stream
It is shot to anode, electron stream gets to anode and is a significant slowdown and issues cone type X-ray beam.Collimator becomes the X-ray beam of taper
A branch of very thin fan-ray beam for having certain just firing angle.Circuit between X-ray tube anode and cathode claims line (anode current)
IA, filament transformer primary current claim hot-fluid IH.Sample circuit in x-ray source is by the high pressure and beam after sampled electric resistance partial pressure
Stream sampled signal sends control circuit back to.
X-ray source controller is the guarantee of x-ray source work, it provides high drive to x-ray source and heater current drives
It is dynamic, and the stabilization of high pressure and heater current is controlled, guarantee the quality of X-ray.X-ray controller mainly includes following portion
Point:
1. power supply circuit
Power supply circuit introduces the 220VAC that denoising is removed through filter, send to the primary of x-ray source controller,
Its secondary generates three groups of voltages.
First group: 20VAC, rectified, 7815 pressure stabilizing of three-terminal voltage-stabilizing component and capacitor filtering generate 15VDC；
Second group: 110VAC, to generate heater current；
Third group: two-way 167VAC is bridged, is rectified the high voltage supply of 1 generation 310VDC, is sent to high drive part.
2. high-voltage control circuit
High-voltage control circuit adjusts part and power amplification plate by the high voltage control on x-ray source control panel (XGCB)
(XPOW) the high drive part composition on.Control process is: logic switch receives rays safety detection apparatus control centre (CCPU) and issues
Switch X-ray enable signal (GEON,) control the output of pulse width modulator, and by high-pressure sampling signal and pre-
It sets benchmark to be compared, its difference be made a gift to someone in a proportional integrator, the control power supply obtained is defeated to control pulse width modulator
The duty ratio of signal out, so as to form a closed-loop automatic control process.The pulse voltage of pulse width modulator output, height of making a gift to someone
Drive part is pressed, two TMOS pipes is pushed respectively, is respectively turned on it, to drive the high-tension transformer in x-ray source.It is high voltage-controlled
Circuit processed also has the abnormity protection functions such as external power grid overtension.
3. line control circuit
Line control circuit is on the x-ray source control panel of rays safety detection apparatus.When X-ray does not emit, mentioned to X-ray tube filament
For pre- thermocurrent；When X-ray occurs, the heating power of filament is controlled, keeps the unit time steady by the electron number projected on filament
It is fixed.The control mode and power drive principle of line control circuit and high-voltage control circuit are essentially identical.
The different faults of x ray generator are reflected in phenomenon and often duplicate, i.e., rays safety detection apparatus is without image generation or image
Quality is bad.When X-ray emission is unstable, the quality of image will affect；When X-ray non-emissive, will be generated without image.And
There is the failure that the reason of above-mentioned phenomenon is but not limited to x ray generator.Phenomenon of the failure indifference, this just gives analytical judgment event
Barrier increases difficulty.
Summary of the invention
In view of the defects existing in the prior art, the present invention provides one kind can efficiently and accurately find out x ray generator
The fault diagnosis system and method for the safety check x ray generator of position occur for failure.
It is of the present invention the specific technical proposal is:
A kind of method for diagnosing faults of safety check x ray generator, when X-ray receptor can not receive image information or
When person is that the image information that receives is unstable, then the method for diagnosing faults is executed；Include the following steps:
S1, judge whether x ray generator is opened, when x ray generator is opened, then start to execute subsequent step；
S2, trouble-shooting source: specifically:
Judge whether positive or negative high voltage transformer and the voltage-multiplying circuit of x ray generator are normal, specifically: first in the period
T obtains the times N that x ray generator generates the electrion sound, is then compared times N with threshold value M, when N is greater than M
When, then positive or negative high voltage transformer and voltage-multiplying circuit break down, and otherwise, positive or negative high voltage transformer and voltage-multiplying circuit are working properly；
Judge whether the mineral oil of x ray generator is revealed, specifically: the fixed bearing chassis of acquisition x-ray source first
Real-time image information, the mineral oil area S on the fixed bearing chassis surface of x-ray source is then obtained by image procossing, when
When mineral oil area S is greater than zero, then it is assumed that the mineral oil of x ray generator is revealed, otherwise, x ray generator
Mineral oil is not revealed；
Judge whether the X-ray tube of x ray generator is normal, specifically: the temperature T1 of x-ray source is obtained first, then
Temperature T1 is compared with threshold temperature T0, when temperature T1 is greater than threshold temperature T0, then X-ray tube breaks down, otherwise, X
Ray tube is working properly；
When three detections in the step are all working properly, S3 is thened follow the steps；
Whether S3, cable, protective tube and the X-ray controller for detecting x ray generator are normal.
Further, T is not less than 20 minutes.
Further, T=30 minutes, M=5.
Further, when the adjacent sound twice is less than 3s, then a sound is only counted.
Further, the process of described image processing are as follows: real-time image information and original image information are subjected to difference operation,
The area of the number of pixel and each pixel is carried out product calculation and then obtained by the pixel number for then counting non-zero
Mineral oil area S.
Further, the real-time image information and original image information are gray level image.
A kind of system of the method for diagnosing faults of safety check x ray generator, comprising:
For acquiring the sound transducer of audible signal；
For acquiring the imaging sensor of image information；
For obtaining the temperature sensor of temperature information；
The whether normal multimeter of cable, protective tube and X-ray controller, ammeter for detecting x ray generator,
Voltmeter and oscillograph；
And believe for receiving above sound sensor, imaging sensor and temperature sensor output signal, and to output
Number controller being analyzed and processed.
Advantages of the present invention and good effect are as follows:
The present invention targetedly detects the different components of x ray generator by hoping news Guan observe, specifically,
Whether judgement is normally carried out to positive or negative high voltage transformer and voltage-multiplying circuit by sound information, by image processing means to mineral
Whether matter oil, which is revealed, is detected, and whether is normally carried out detection to X-ray tube by temperature information, by multimeter, ammeter,
Whether voltmeter and oscillograph are normally carried out detection to cable, protective tube and X-ray controller, pass through above-mentioned a variety of detection means
Carry out the accurate location for efficiently and accurately obtaining failure；I.e. the present invention improves rays safety detection apparatus x ray generator breakdown judge
Accuracy improves rays safety detection apparatus reliability of operation, it is ensured that the smooth development of safety inspection work.Through actual test and verifying,
It works well.
Detailed description of the invention
Fig. 1 is the structural block diagram of the embodiment of the present invention；
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing
Detailed description are as follows.
Structure of the invention is explained in detail with reference to the accompanying drawing.
Please refer to Fig. 1: a kind of method for diagnosing faults of safety check x ray generator, when X-ray receptor can not receive
When the image information that image information either receives is unstable, then the method for diagnosing faults is executed；Include the following steps:
S1, judge whether x ray generator is opened, mainly judge power supply whether normal power supply and x ray generator
Whether switch is normally-open, when x ray generator is opened, then starts to execute subsequent step；
S2, trouble-shooting source: specifically:
Judge whether positive or negative high voltage transformer and the voltage-multiplying circuit of x ray generator are normal, specifically: first in the period
T obtains the times N that x ray generator generates the electrion sound, is then compared times N with threshold value M, when N is greater than M
When, then positive or negative high voltage transformer and voltage-multiplying circuit break down, and otherwise, positive or negative high voltage transformer and voltage-multiplying circuit are working properly；
Under normal circumstances: T is not less than 20 minutes.In the preferred embodiment, T=30 minutes, M=5.In order to reduce error: when adjacent
When the sound twice is less than 3s, then a sound is only counted.
Judge whether the mineral oil of x ray generator is revealed, specifically: the fixed bearing chassis of acquisition x-ray source first
Real-time image information, the mineral oil area S on the fixed bearing chassis surface of x-ray source is then obtained by image procossing, when
When mineral oil area S is greater than zero, then it is assumed that the mineral oil of x ray generator is revealed, otherwise, x ray generator
Mineral oil is not revealed；In the preferred embodiment, the process of described image processing are as follows: by real-time image information and original image
Information carries out difference operation, then counts the pixel number of non-zero, by the area of the number of pixel and each pixel into
Row product calculation obtains mineral oil area S in turn.In order to improve the efficiency of data processing, the real-time image information with it is original
Image information is gray level image.
Judge whether the X-ray tube of x ray generator is normal, specifically: the temperature T1 of x-ray source is obtained first, then
Temperature T1 is compared with threshold temperature T0, when temperature T1 is greater than threshold temperature T0, then X-ray tube breaks down, otherwise, X
Ray tube is working properly；Threshold temperature T0 is ceiling temperature when X-ray tube works normally；The X-ray tube upper limit of different model
Temperature is different；
When three detections in the step are all working properly, S3 is thened follow the steps；
Whether S3, cable, protective tube and the X-ray controller for detecting x ray generator are normal.
A kind of system of the method for diagnosing faults of safety check x ray generator, comprising:
For acquiring the sound transducer of audible signal；
For acquiring the imaging sensor of image information；In order to guarantee the acquisition quality of imaging sensor, can also include
The illuminator of light filling；
For obtaining the temperature sensor of temperature information；
The whether normal multimeter of cable, protective tube and X-ray controller, ammeter for detecting x ray generator,
Voltmeter and oscillograph；
And believe for receiving above sound sensor, imaging sensor and temperature sensor output signal, and to output
Number controller being analyzed and processed.
It is directed to above preferred embodiment:
Diagnosis process of the invention mainly includes four parts, it may be assumed that listens, touches, sees, surveys, particular content is as follows:
One, listen --- the sound is listened,
Sound source: positive or negative high voltage transformer and voltage-multiplying circuit in x-ray source,
Producing cause: electrion,
Consequence: interrupting high voltage supply,
Failure criterion: sound frequency f >=20 beat/min, measurement period 30 minutes, adjacent sound interval per minute was less than etc.
Reach 5 times or more in 3 by the number of second.
Two, see --- the area of observation grease stain.
Source: the mineral oil in x-ray source；
Producing cause: x-ray source sealing is bad；
Consequence: lead to the reduction of x-ray source inner part insulation degree；
Failure quantitative criteria: the sum of fixed bearing chassis area of pollution x-ray source >=0.75 ㎡.
Fit Models: side illuminated (horizontal) and bottom illuminated.
Three, touch --- i.e. touch temperature.
Heat source: the X-ray tube in x-ray source；
Producing cause: electric energy all turns or part is thermal energy, and x-ray source is caused to rise compared with temperature under normal conditions；
Consequence: no X-ray generates or the decline of X-ray quality；
Failure quantitative criteria: temperature >=52 DEG C of x-ray source
Four, survey --- test, measurement and detection index of correlation
Particular content is as follows:
1. the failure of x ray generator and the failure of non-x ray generator are distinguished in test,
2. measurement checks cable, x-ray source, indicator light, component, the protective tube of x ray generator,
3. whether test-based examination X-ray controller is normal,
4. being the failure or x-ray source of X-ray controller by test X-ray controller and X-ray producer, judgement
Failure.
In above-mentioned four kinds of means, " listen, see, touching " is used to determine the damage of X-ray producer (x-ray source)；" survey " is used
The failure of X-ray controller is derived from the failure and X-ray for distinguishing x ray generator and non-x ray generator.
One, judge x-ray source failure
1. listening is differentiated that recognition methods is: opening the cabinet of X-ray safety check equipment, adopted using sound transducer
Whether there is or not the electrion sounds in collection x-ray source, if so, using time of electrion sound in the measurement of minute timer one minute
Number can determine that x-ray source has damaged, need to replace immediately when sound number per minute is more than or equal to 20 times.
At this point, i.e. enabled issue ray, the X-ray issued by such radiographic source is no matter from energy or in continuity
All be it is unstable, this X-ray scanning checked property obtain picture quality not can guarantee.
2. observing the area of grease stain.Method of discrimination is: opening the cabinet of X-ray safety check equipment, utilizes image sensing
Device acquires the image of the fixed bearing chassis of x-ray source, obtains whether there is grease stain by image analysis, if any measurement grunge pollution
Area, when the sum of contaminated area is greater than 0, then it is assumed that there are failures, preferably, when greasy dirt area is more than or equal to 0.75 ㎡
When, show that the mineral oil in x-ray source is revealed relatively more, leads to x-ray source interior insulation reduced performance, that is, can determine that X is penetrated
Line source damage.The method is only applicable to determine side illuminated (horizontal) and bottom illuminated X-ray safety check equipment X-ray producer (X
Radiographic source) damage.
3. touch temperature.Method of discrimination is: opening the cabinet of X-ray safety check equipment, measurement X-ray safety inspection is set
The ground connection situation of standby x-ray source shell when confirmation ground connection is good, touches x-ray source shell with temperature sensor, feels shell
When temperature anomaly, function of multimeter knob is placed in temperature measured place, test pencil is placed in respective socket, measures the shell of x-ray source
Temperature, when skin temperature be more than or equal to 52 DEG C when, that is, can determine that x-ray source (X-ray producer) failure.
Four, test, measurement and detection index of correlation.Particular content is as follows:
1. distinguishing the failure of x ray generator and the failure of non-x ray generator.
When generating without image or generating the bad failure of picture quality occur in rays safety detection apparatus, the reason of failure
Can be it is a variety of, either the failure of x ray generator, is also possible to the failure of image processing section, also
It can be caused by the foreign matter of transport portion.Therefore when above-mentioned phenomenon of the failure occurs, the failure of x ray generator should be distinguished first
With the failure of non-x ray generator.
A. whether observation X-ray emits.When rays safety detection apparatus carries out article inspection, observation rays safety detection apparatus behaviour
Make whether the X-ray indicator light at keyboard and entrance and exit of the passage ignites: such as igniting, that is, have X-ray；It is such as non-ignitable
It is bright, i.e., occur without X-ray.No X-ray occur to can determine that be x ray generator failure.
B. when rays safety detection apparatus carries out article inspection, rays safety detection apparatus operates the X-ray instruction at keyboard and entrance and exit of the passage
(there is X-ray emission) when lamp ignites, also with the index of universal tester (avometer, oscillograph) measurement following table, index
It is all correct to illustrate that x ray generator is normal, it otherwise can determine that x ray generator failure.
2. the cable of macroscopic examination x ray generator, x-ray source, indicator light, component, protective tube, by touching, seeing
It examines, listen attentively to whether judging failure such as lower component of x ray generator:
A. cable, the communication cable of service cable, x ray generator and systems control division including x ray generator point,
The cable that X-ray controller is connect with x-ray source whether there is or not open circuit, is charred, damaged.
B.X radiographic source whether there is or not serious oil leak, climbs oil, and whether there is or not electrion sound phenomenons.
Whether the indicator light H3 on C.XGCB plate ignites, this indicator light, which ignites, illustrates that network voltage is excessively high, to network voltage
Falling x ray generator after rise can restore normal.
D. component, observation whether there is or not be charred, it is damaged.
E. protective tube, observe X-ray controller mother matrix on four protective tubes and XPOW plate on four protective tubes whether
Fusing.
3. check whether X-ray controller is normal,
A. the power supply of X-ray controller primary and secondary output are first checked for.
Whether H2, H4, the H5 B. observed on XGCB plate ignites, and H2 ignites the high-pressure sampling exception that is positive, and H4 ignites indicator light
Silk electric current is excessively high, and it is too low that H5 ignites instruction heater current.
C. it measures high pressure preset value, heater current preset value, positive high voltage sampling value, whether pay high-pressure sampling value, line value
It in the normal range, is X-ray controller failure if any an Indexes Abnormality.
D. pull up the short circuit on XPOW plate insert in the case of, measure high drive waveform, such as it is incorrect, then illustrate that X is penetrated
Lane controller is faulty.
4. determining is the failure of X-ray controller or the failure of x-ray source.
The manual transmitting X-ray switch being closed on XGCB plate, (phenomenon shows themselves in that X on XGCB plate when ray emission is abnormal
Ray emission indicator light do not ignite, flash ignite, cannot persistently ignite cannot continue transmitting X-ray), pull up on XPOW plate
Short circuit is inserted, such as correct with oscilloscope measurement high drive waveform, then to measure filament current value, filament drive waveform, high pressure preset
Value, filament preset value, line value.When These parameters are normal, then illustrate that x-ray source is broken；When These parameters are abnormal, then
Illustrate that x-ray source controller is problematic first.
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form,
Any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to
In the range of technical solution of the present invention.
Claims (7)
1. a kind of method for diagnosing faults of safety check x ray generator, when X-ray receptor can not receive image information or
When being that the image information that receives is unstable, then the method for diagnosing faults is executed；It is characterized in that, including at least following steps:
S1, judge whether x ray generator is opened, when x ray generator is opened, then start to execute subsequent step；
S2, trouble-shooting source: specifically:
Judge whether positive or negative high voltage transformer and the voltage-multiplying circuit of x ray generator are normal, specifically: it is obtained first in period T
It takes x ray generator to generate the times N of the electrion sound, is then compared times N with threshold value M, when N is greater than M, then
Positive or negative high voltage transformer and voltage-multiplying circuit break down, and otherwise, positive or negative high voltage transformer and voltage-multiplying circuit are working properly；
Judge whether the mineral oil of x ray generator is revealed, specifically: the reality of the fixed bearing chassis of acquisition x-ray source first
When image information, the mineral oil area S on the fixed bearing chassis surface of x-ray source is then obtained by image procossing, works as mineral
When matter pasta product S is greater than zero, then it is assumed that the mineral oil of x ray generator is revealed, otherwise, the mineral of x ray generator
Matter oil is not revealed；
Judge whether the X-ray tube of x ray generator is normal, specifically: the temperature T1 for obtaining x-ray source first, it then will be warm
Degree T1 is compared with threshold temperature T0, and when temperature T1 is greater than threshold temperature T0, then X-ray tube breaks down, otherwise, X-ray
It manages working properly；
When three detections in the step are all working properly, S3 is thened follow the steps；
Whether S3, cable, protective tube and the X-ray controller for detecting x ray generator are normal.
2. the method for diagnosing faults of safety check x ray generator according to claim 1, which is characterized in that T is not less than 20 points
Clock.
3. the method for diagnosing faults of safety check x ray generator according to claim 2, which is characterized in that T=30 minutes, M
=5.
4. the method for diagnosing faults of safety check x ray generator according to claim 3, which is characterized in that when it is adjacent twice
The sound be less than 3s when, then only count a sound.
5. the method for diagnosing faults of safety check x ray generator according to claim 1, which is characterized in that at described image
The process of reason are as follows: real-time image information and original image information are subjected to difference operation, then count the pixel number of non-zero,
The area of the number of pixel and each pixel is subjected to product calculation and then obtains mineral oil area S.
6. the method for diagnosing faults of safety check x ray generator according to claim 5, which is characterized in that the real-time figure
As information and original image information are gray level image.
7. a kind of system for realizing the method for diagnosing faults of safety check x ray generator described in claim 1, feature as,
It includes at least:
For acquiring the sound transducer of audible signal；
For acquiring the imaging sensor of image information；
For obtaining the temperature sensor of temperature information；
The whether normal multimeter of cable, protective tube and X-ray controller, ammeter, voltage for detecting x ray generator
Table and oscillograph；
And for receiving above sound sensor, imaging sensor and temperature sensor output signal, and to output signal into
The controller of row analysis processing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810509254.4A CN108983311B (en) | 2018-05-24 | 2018-05-24 | Fault diagnosis system and method of X-ray generator for security inspection |
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| CN201810509254.4A CN108983311B (en) | 2018-05-24 | 2018-05-24 | Fault diagnosis system and method of X-ray generator for security inspection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504365A (en) * | 2019-01-31 | 2020-08-07 | 住友重机械工业株式会社 | Diagnostic system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111504365A (en) * | 2019-01-31 | 2020-08-07 | 住友重机械工业株式会社 | Diagnostic system |
| US11280666B2 (en) | 2019-01-31 | 2022-03-22 | Sumitomo Heavy Industries, Ltd. | Diagnosis system |
| CN112325812A (en) * | 2020-09-23 | 2021-02-05 | 武汉钢铁有限公司 | Fault detection method and system for thickness gauge X-ray generating device |
| CN113358155A (en) * | 2021-06-08 | 2021-09-07 | 西安羲和永青医疗科技有限责任公司 | X-ray tube working state monitoring method |
| CN113358155B (en) * | 2021-06-08 | 2022-10-11 | 西安羲和永青医疗科技有限责任公司 | X-ray tube working state monitoring method |
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| CN108983311B (en) | 2020-08-11 |
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