CN204374108U - The check system of synchronous localized internal material - Google Patents
The check system of synchronous localized internal material Download PDFInfo
- Publication number
- CN204374108U CN204374108U CN201420655769.2U CN201420655769U CN204374108U CN 204374108 U CN204374108 U CN 204374108U CN 201420655769 U CN201420655769 U CN 201420655769U CN 204374108 U CN204374108 U CN 204374108U
- Authority
- CN
- China
- Prior art keywords
- ray
- radiomaterial
- image
- tested target
- imagery device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Disclose a kind of system of localized internal material.Scanned imagery device comprises the radiographic source of generation X ray and receives the detecting devices penetrating the X ray of tested target, and radiographic source is by carrying out imaging to tested objective emission X ray to tested target.The scanning process of radioactivity seeker and scanned imagery device synchronously detects in tested target whether comprise radiomaterial.When radioactivity seeker detects radiomaterial, in the radioscopic image that scanned imagery device obtains, mark the physical location of radiomaterial in the image of tested target.Such scheme improves the precision showing source positions in radioscopic image.In addition, while image is scanned, radiating matter inspection is completed.Avoid because two cover systems independently run, cause the check result of two cover systems when one_to_one corresponding, the mistake that may occur.
Description
Technical field
The utility model relates to the scanning imagery process to relative movement target, particularly relates to a kind of system at scanning imagery process localized internal material.
Background technology
X-ray imaging vehicle inspection system is used for checking vehicles, penetrate by scanning vehicle by X ray, form the radioscopic image of vehicle, supervisory personnel is not contacted by radioscopic image and the interior details nondestructively checked vehicles, and need not open container and also can check the goods loaded in container.The radiomaterial that radiating matter check system is concealed in being checked vehicles by passive detection mode, when vehicle is by check system, if there is radiomaterial can send warning, and provides the general location of radiomaterial in vehicle.
At the scene during actual use, by radiating matter check system (RM), first vehicle checks whether radiomaterial exists, and then carry out X-ray scanning.In radiomaterial checks, radiomaterial detection is from the scanned imagery device that vehicle arrives X ray, vehicle is completely by terminating after scanned imagery device, middle meeting calculate vehicle translational speed by the time and vehicle commander of blocking probe, finally provide the particular location of radiomaterial at vehicle, this process comprises beginning of reporting to the police, warning peak and end of reporting to the police.By interface, above-mentioned information is passed to X-ray inspection system.In radioscopic image check system, when accelerator goes out to restraint, detector starts to collect data, and when accelerator stops bundle, detector stops gathering, and preserves complete image.The start time of radioscopic image and device scan, end time, and Current Scan to go out to restraint frequency relevant with the translational speed of scanning device.X-ray inspection system, by the position of radiomaterial in radiomaterial check result, is mapped in radioscopic image, when checking image, can see which position of radiating matter at vehicle intuitively, so that the personnel of unpacking find radioactive source rapidly.
In the use of reality, when scanning X ray, often first going out bundle, after accelerator dose stability, just starting motion scan equipment, tested vehicle is scanned.Therefore before radioscopic image, have one section of air value instead of scan car body at the very start.In addition, due to by scanning vehicle stand, when scanning, the one section of blank scanning the front end of vehicle or the very long of rear end may be caused, the most left of X-ray scanning image or the rightmost side also can be made not by the car body scanned.And in radioactive material quality detection, be detect to start with headstock, provide the particular location of radiomaterial in vehicle.Because these the two kinds starting points checked are different, make X-ray inspection system cannot locate by the scanning exact position of vehicle in radioscopic image, the position that can only start using image is as the position of headstock, so, when RM check result is corresponded to radioscopic image, because these the two kinds starting point checked ratio of compression that are different, two kinds of check image are different, larger deviation can be produced.In addition, vehicle, when by radiomaterial check system, if do not remain a constant speed motion, also will have influence on the result of the RM system-computed speed of a motor vehicle, and then has influence on check result.
In addition, because two cover systems work alone, two cover system check results error one to one can be produced.When real work, many trucks may be there are and sequentially pass through RM check system, produce some check results.Then when carrying out X-ray inspection system, these vehicles oneself may adjust checked order, or individual vehicle does not carry out X-ray examination, directly drives away.Now, the problem of X-ray examination image mistake corresponding to RM result is all likely caused.
Utility model content
Consider the problems of the prior art, propose a kind of system of localized internal material.
In one of the present utility model, propose a kind of system of localized internal material, comprise: scanned imagery device, comprise the radiographic source of generation X ray and receive the detecting devices penetrating the X ray of tested target, described radiographic source is by carrying out imaging to described tested objective emission X ray to described tested target; Radioactivity seeker, synchronously detects in described tested target whether comprise radiomaterial with the scanning process of described scanned imagery device.
According to some embodiments, described radioactivity seeker is set on the moving direction of described tested target and between described radiogenic main beam at a distance of predetermined distance.
Such scheme solves the not high problem of the positional precision of the localized internal material existed in prior art, improve the precision showing source positions in radioscopic image, namely reduce when radiomaterial check result is mapped to radioscopic image, due to the deviation that the reasons such as scan mode produce.
In addition, according to such scheme, while image is scanned, radiating matter inspection can be completed.Avoid because two cover systems independently run, cause the check result of two cover systems when one_to_one corresponding, the mistake that may occur.
Accompanying drawing explanation
In order to better understand the utility model, will be described embodiment of the present utility model according to the following drawings:
Figure 1A and Figure 1B is the structural representation of the check system according to the utility model embodiment;
Fig. 2 show radiogenic go out relation between beam pulse and RM probe interval;
Fig. 3 shows sequential chart in the process of the position of the localized internal material according to the utility model embodiment;
Fig. 4 shows the schematic diagram according to the relation that arranges between the RM equipment of the utility model embodiment and scanned imagery device;
Fig. 5 shows the example of the image obtained in the system according to the utility model embodiment;
Fig. 6 shows the structural representation of the system according to the utility model embodiment.
Accompanying drawing does not show all circuit of embodiment or structure.The Reference numeral running through institute's drawings attached identical represents same or analogous parts or feature.
Embodiment
To specific embodiment of the utility model be described in detail below, it should be noted that the embodiments described herein is only for illustrating, is not limited to the utility model.In the following description, in order to provide thorough understanding of the present utility model, a large amount of specific detail has been set forth.But, those of ordinary skill in the art be it is evident that: these specific detail need not be adopted to carry out the utility model.In other instances, in order to avoid obscuring the utility model, do not specifically describe known circuit, material or method.
In whole instructions, " embodiment ", " embodiment ", " example " or mentioning of " example " are meaned: the special characteristic, structure or the characteristic that describe in conjunction with this embodiment or example are comprised at least one embodiment of the utility model.Therefore, the phrase " in one embodiment " occurred in each place of whole instructions, " in an embodiment ", " example " or " example " differ to establish a capital and refer to same embodiment or example.In addition, can with any suitable combination and/or sub-portfolio by specific feature, structure or property combination in one or more embodiment or example.In addition, it should be understood by one skilled in the art that the accompanying drawing provided at this is all for illustrative purposes, and accompanying drawing is not necessarily drawn in proportion.Should be appreciated that when claim element " be couple to " or " being connected to " another element time, it can be directly couple or be couple to another element or can there is intermediary element.On the contrary, when claim element " be directly coupled to " or " being directly connected to " another element time, there is not intermediary element.Identical Reference numeral indicates identical element.Term "and/or" used herein comprises any and all combinations of one or more relevant project listed.
According to embodiments more of the present utility model, for the problem that the positional precision of localized internal material in prior art is not high, propose a kind of system of localized internal material, it comprises: scanned imagery device and radioactivity seeker.Scanned imagery device comprises the radiographic source of generation X ray and receives the detecting devices penetrating the X ray of tested target, and described radiographic source is by carrying out imaging to described tested objective emission X ray to described tested target.The scanning process of radioactivity seeker and described scanned imagery device synchronously detects in described tested target whether comprise radiomaterial.When described radioactivity seeker detects radiomaterial, in the radioscopic image that described scanned imagery device obtains, mark the physical location of described radiomaterial in the image of described tested target.Like this, when the moving target (i.e. tested target) such to such as vehicle checks, when there is radiomaterial, it is positioned on the image of this target exactly.
Figure 1A and Figure 1B is the structural representation of the check system according to the utility model embodiment.As shown in Figure 1A, radiographic source 110 produces X ray, after collimating apparatus 120 collimates, carries out safety inspection to the truck 140 of movement, is received the ray penetrating truck, obtain transmission image by detector 150.While carrying out above-mentioned inspection, the radioactivity seeker of setting (RM detector) 130 is also utilized to detect on truck 140 whether include radiomaterial.When RM detector 130 detects radiomaterial, in the radioscopic image that scanned imagery device obtains, mark the physical location of radiomaterial in the image of truck 140.
According to some embodiments, change existing radiating matter check system working method, radiating matter check system is well dissolved in the workflow of radioscopic image system, solve the problem that two check results map deviation.Such as, when hardware installation, RM detector 130 is arranged on accelerator (or other types radiographic source) main beam side, and as far as possible close.Guarantee when checking, accelerator and RM equipment (such as RM detector) can work simultaneously, check by scanning vehicle, as described in Figure 1A.When carrying out X-ray scanning, can scan from headstock, now, by scanning vehicle first through RM detection system, then by accelerator main beam; Also can scan from the tailstock, now, by scanning vehicle first by accelerator main beam, and then by RM detection system.
In addition, in the process of carrying out X ray and RM detection inspection, accelerator and RM detector 130 work simultaneously, and wherein RM detector detects in the not spill time of two pulses centres that accelerator goes out to restraint, as shown in Figure 2, with the interference of the ray avoiding accelerator to send to RM detector.The spill time of the every subpulse of accelerator, probably in several microsecond, now accelerator can produce radiation, affects RM detection.Time between two pulses is accelerator activation period, to go out to restraint frequency 40hz, probably at about 25 milliseconds.Wherein RM system is by accelerator line trigger signal, can learn the opportunity that accelerator triggers, and then evades the moment that accelerator triggers, carries out radiating matter detection.
In other embodiments, can determine that described tested target is scanned by the sensor of the radiographic source plane of scanning motion relevant position being arranged on scanned imagery device, or carry out gated sweep imaging device by synchronizing signal and radioactivity seeker works simultaneously.Or, apply high pressure in response to radiographic source, trigger radioactivity seeker and start working.Certainly the synchro control for accelerator/radiographic source and RM detector is not limited to above-mentioned method, if can make accelerator/radiographic source synchronous with RM detector not intrusively working method all within by the protection domain of utility model.
According to some embodiments, can't help RM system (comprising RM detector) calculates radiating matter positional information, the time detecting radiomaterial is only sent to X-ray inspection system by RM detection, calculates the exact position of radiomaterial in radioscopic image by X-ray inspection system.Such as, X-ray inspection system, when starting to scan tested vehicle, sends order notice RM system.Scanning the start time under RM system log (SYSLOG), when radiomaterial being detected, will detect that the time interval (unit is millisecond) that radiomaterial range sweep starts sends to X-ray inspection system; At the end of radiomaterial radiation being detected, respectively by detect peak and at the end of time (this time is that distance starts time interval of scan image) send to X-ray inspection system.
Then, X-ray inspection system each information comprehensive calculates radiomaterial position.Such as, x-ray system knows the start and end time of present scan, the time interval of then scanning from the distance that RM system obtains when radiomaterial being detected, and the frequency that X ray goes out bundle is constant, and the speed of scanning is also constant.Therefore, radiomaterial corresponding relation on the x-ray image can be obtained, as shown in Figure 3.
Because RM equipment installation site can not overlap with accelerator main beam, always have certain deviation, as shown in Figure 4, d is deviation between the two.When the radiomaterial peak that RM detects, time namely radiomaterial is closest to RM equipment, now, the accelerator main beam position that X-ray scanning image shows.Again because RM passes to x-ray system using the time as warning message, X ray inspection system can be thought now, has radiomaterial in accelerator main beam position, has a deviation d with real radiomaterial position.Therefore, need, when calculating, this deviation to be compensated.
Such as, X-ray inspection system calculating exact position method is as follows:
1, X-ray inspection system is when starting to scan, and records current time T1, and when the end of scan, the record time is at that time T2, and the time obtaining whole scan images is thus T=T2-T1.
2, X-ray inspection system from RM system obtain radiomaterial report to the police start, peak, ending message, this information be distance start scanning (T1) time the time interval, unit is millisecond.That is, beginning, peak, the end distance of can obtaining reporting to the police starts time span when scanning, and is respectively Ts, Tm, Te.
3, can obtain by Ts/T, Tm/T, Te/T report to the police beginning, warning peak, the ratio terminated in whole scanning process of reporting to the police.
4, scanned imagery device is after the end of scan, total columns N is obtained from detecting devices, be multiplied by each above-mentioned ratio Ts/T, Tm/T, Te/T respectively with total columns, obtain warning beginning corresponding in the picture, warning peak respectively and report to the police terminating corresponding columns Ns, Nm, Ne; Obtain warning beginning, warning peak to scan start time T1 correspondence position in the drawings respectively along one-tenth figure direction forwards Ns, Nm, Ne row, report to the police and terminate position corresponding in the picture.Such as, X-ray inspection system, after the end of scan, can know total columns N that present scan obtains from detector.Be multiplied by with total columns each ratio that the 3rd step obtains respectively, can obtain warning corresponding in the picture and start columns Ns, Nm, Ne, the columns now obtained does not consider the deviation between RM equipment and accelerator main beam.
5, X-ray scanning image one column data can the physical size d of corresponding actual scanning, and unit is millisecond.Such as, scan a truck, altogether create the radioscopic image of n row, the actual truck length of corresponding scanning is roughly n*d.The value of d is in advance in write into Databasce, for whole X-ray scanning system.
6, the distance of detecting devices on relative movement direction based on radioactivity seeker and scanned imagery device corrects above-mentioned warning beginning, warning peak and columns Ns, Nm, the Ne terminated that report to the police, or corrects the correspondence position of scanning start time T1 on figure.Such as, as shown in Figure 4, the physical distance Lo between RM probe and accelerator main beam is measured in advance.If scanned from headstock to the tailstock, then warning starting position Ls=Ns*d+Lo, report to the police high peak position Lm=Nm*d+Lo, warning end position Le=Ne*d+Lo.If scanned from the tailstock to headstock, then warning starting position Ls=Ns*d-Lo, report to the police high peak position Lm=Nm*d-Lo, warning end position Le=Ne*d-Lo.These positional information records in a database.
According to the above embodiments, when X-ray scanning, carry out radiomaterial inspection simultaneously, solve the check result problem one to one of two cover systems.In addition, position according to accelerator spill time, can by before headstock and the air that scans below of the tailstock also count, do not need to limit again X-ray scanning.Traditional approach, needs to start bundle in headstock position, stops bundle at the tailstock, in actual use, and more difficult operation.Moreover scanning device translational speed is stablized, and avoids RM range rate error.Meanwhile, the information such as the speed of a motor vehicle, frequency, detector crystal are taken into account, improves precision.
Fig. 5 shows the structural representation of the system according to the utility model embodiment.Be illustrated in fig. 5 shown below, red circle is radioactive source.An IOU issued by a post office part of image bottom is RM warning message, and green is safety, and yellow is RM warning, and red is warning peak, i.e. source positions.
Fig. 6 shows the system deployment diagram of the utility model embodiment.As shown in Figure 6, wherein accelerator 610 and detector 650 are hardware device, data acquisition and control module 651 are carried out being connected with detector 650 and are controlled detector 650, control device 611 is connected with accelerator 610 and controls accelerator 610 go out to restraint and stop restrainting, and RM sniffer 620 is connected with accelerator 610 and obtains related control information.Image inspection station 680 and rolling inspection station 670 are the supporting workstation of scanning device, and be connected with data acquisition and control module 651 Serial Communication of going forward side by side by switch 660, image result can be printed by printer 690.Scanner 671 is connected with rolling inspection station 670.RM terminal 621 is connected with rolling inspection station 670, and connects RM sniffer 620 by signal wiring line.Wherein, RM terminal also can be communicated with rolling inspection station by switch.
By means of above-mentioned system, in certain embodiments, accelerator 610 produces X ray, penetrates the X ray of tested target, is detected device 650 and receives to carry out imaging to tested target.The radioactivity seeker of such as RM sniffer 620 and so on synchronously detects in tested target whether comprise radiomaterial with the scanning process of the scanned imagery device comprising accelerator 610 and detector 650 and data acquisition and control module 651.When radioactivity seeker detects radiomaterial, in the radioscopic image that described scanned imagery device obtains, mark the physical location of described radiomaterial in the image of described tested target.Like this, when the moving target such to such as vehicle checks, when there is radiomaterial, it is positioned on the image of this target exactly.
In addition, in other embodiments, can also speed pickup be set, when scanned imagery device is static, truck moves, measure the speed of truck in testing process, scanned imagery device controls the reconstruction to scan image according to the translational speed of the relevant truck received from speed pickup, and revises scan image data according to translational speed.Such as, truck is at a predetermined velocity relative to system motion: if truck to be on this predetermined speed range in limited time, and scanned imagery device goes out to restraint frequency sample according to radiogenic; If truck is prescribed a time limit lower than on this predetermined speed range, scanned imagery device is in over-sampling state, adopts method of interpolation or convolution method to be reconstructed image.
Above detailed description, by using schematic diagram, process flow diagram and/or example, has set forth numerous embodiments of the system and method for localized internal material.When this schematic diagram, process flow diagram and/or example comprise one or more function and/or operation, it will be understood by those skilled in the art that each function in this schematic diagram, process flow diagram or example and/or operation can by various structure, hardware, software, firmware or in fact their combination in any come to realize separately and/or jointly.In one embodiment, some parts of theme described in embodiment of the present utility model can be realized by special IC (ASIC), field programmable gate array (FPGA), digital signal processor (DSP) or other integrated forms.But, those skilled in the art will recognize that, some aspects of embodiment disclosed herein can realize in integrated circuits on the whole or partly equally, be embodied as one or more computer programs of running on one or more computing machine (such as, be embodied as the one or more programs run in one or more computer system), be embodied as one or more programs of running on the one or more processors (such as, be embodied as the one or more programs run on one or more microprocessor), be embodied as firmware, or be embodied as in fact the combination in any of aforesaid way, and those skilled in the art are according to the disclosure, the ability of design circuit and/or write software and/or firmware code will be possessed.In addition, those skilled in the art will recognize that, the mechanism of theme described in the disclosure can be distributed as the program product of various ways, and regardless of the actual particular type of signal bearing medium being used for performing distribution, the exemplary embodiment of theme described in the disclosure is all applicable.The example of signal bearing medium includes but not limited to: recordable-type media, as floppy disk, hard disk drive, compact-disc (CD), digital universal disc (DVD), numerical tape, computer memory etc.; And transmission type media, as numeral and/or analogue communication medium (such as, optical fiber cable, waveguide, wired communications links, wireless communication link etc.).
Although exemplary embodiment describe the utility model with reference to several, should be appreciated that term used illustrates and exemplary and nonrestrictive term.Specifically can implement in a variety of forms due to the utility model and not depart from spirit or the essence of utility model, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and explain widely in the spirit and scope that should limit in claim of enclosing, therefore fall into whole change in claim or its equivalent scope and remodeling and all should be claim of enclosing and contained.
Claims (2)
1. a check system for synchronous localized internal material, is characterized in that, comprising:
Scanned imagery device, comprise the radiographic source of generation X ray and receive the detecting devices penetrating the X ray of tested target, described radiographic source is by carrying out imaging to described tested objective emission X ray to described tested target;
Radioactivity seeker, synchronously detects in described tested target whether comprise radiomaterial with the scanning process of described scanned imagery device.
2. the system as claimed in claim 1, is characterized in that, described radioactivity seeker is set on the moving direction of described tested target and between described radiogenic main beam at a distance of predetermined distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420655769.2U CN204374108U (en) | 2014-11-05 | 2014-11-05 | The check system of synchronous localized internal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420655769.2U CN204374108U (en) | 2014-11-05 | 2014-11-05 | The check system of synchronous localized internal material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204374108U true CN204374108U (en) | 2015-06-03 |
Family
ID=53330317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420655769.2U Expired - Fee Related CN204374108U (en) | 2014-11-05 | 2014-11-05 | The check system of synchronous localized internal material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204374108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374784A (en) * | 2014-11-05 | 2015-02-25 | 同方威视技术股份有限公司 | Detection system and method for synchronously positioning radioactive substances |
-
2014
- 2014-11-05 CN CN201420655769.2U patent/CN204374108U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374784A (en) * | 2014-11-05 | 2015-02-25 | 同方威视技术股份有限公司 | Detection system and method for synchronously positioning radioactive substances |
| CN104374784B (en) * | 2014-11-05 | 2017-05-17 | 同方威视技术股份有限公司 | Detection system and method for synchronously positioning radioactive substances |
| US9945794B2 (en) | 2014-11-05 | 2018-04-17 | Nuctech Company Limited | Inspection systems and methods for synchronously positioning radioactive material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104374784A (en) | Detection system and method for synchronously positioning radioactive substances | |
| CN111077506B (en) | Method, device and system for calibrating millimeter wave radar | |
| EP3620926B1 (en) | Method and apparatus for testing autonomous vehicle, and storage medium | |
| CN102918573B (en) | Determine car speed and coordinate and follow-up identification and automatic the recording traffic method of breaking rules and regulations and the equipment realizing described method are carried out to it | |
| US9514664B2 (en) | Measuring latency in a test system using captured images | |
| US7973276B2 (en) | Calibration method for video and radiation imagers | |
| CN207089320U (en) | A kind of bow net off-line state contactless detection device | |
| CN104567725A (en) | Vehicle operation fault detection system and method | |
| CN104567726A (en) | Vehicle operation fault detection system and method | |
| CN205725157U (en) | A kind of robot graphics's automatic recognition system | |
| CN102749470A (en) | Fragment velocity measuring device | |
| AU2013209360A1 (en) | Apparatus and method for the identification and documentation of at least one object driving through a radiation field | |
| EP3312641A1 (en) | Method, apparatus and system for scanning and imaging | |
| CN106249307A (en) | Safety detection method and system | |
| CN204374108U (en) | The check system of synchronous localized internal material | |
| CN207263664U (en) | Radiation checking system | |
| CN104878679A (en) | Vehicle-mounted rut real-time detection system and detection method | |
| CN110274923A (en) | The synchronous data collection of sigmatron CT equipment and calibration method and control system | |
| CN113238546A (en) | Multi-source sensor fusion test system for automatic parking controller | |
| CN105423998A (en) | Lens distance measurement device and measurement method thereof | |
| CN111183366B (en) | Simulation device for monitoring a motor vehicle | |
| JP2011226860A (en) | Surrounding object detection apparatus | |
| CN106454334A (en) | Device for measuring exposure time of X-ray framing camera | |
| CA1098221A (en) | Gamma ray calibration system | |
| CN113740829A (en) | External parameter monitoring method and device for environment sensing equipment, medium and running device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150603 Termination date: 20201105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |