CN104090308A - System and method for conducting radiation scanning on moving target and data information tag - Google Patents
System and method for conducting radiation scanning on moving target and data information tag Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06046—Constructional details
- G06K19/06131—Constructional details the marking comprising a target pattern, e.g. for indicating the center of the bar code or for helping a bar code reader to properly orient the scanner or to retrieve the bar code inside of an image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
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Abstract
The invention discloses a system for conducting radiation scanning on a moving target. The system comprises a radiation source, a tag reader, a detection module and a control module, wherein the radiation source is used for sending out rays; the tag reader is used for reading information carried by a data information tag placed on the moving target and sending the information to the control module; the detection module is used for detecting the position of the moving target in a detection channel and sending out a signal to the control module when the moving target arrives at a preset position; on the basis of the information from the tag reader and the signal from the detection module, the control module is used for controlling the process that the radiation source sends out the rays. The information carried by the data information tag contains length information, and the length information indicates the length of a region needing radiation avoiding in the moving target or the length of a region needing low-dose-rate ray scanning. Different types of moving targets can be scanned and examined in various scanning and examining modes.
Description
Technical field
The present invention relates to radiant image technical field, be specifically related to a kind of Apparatus and method for that moving target is carried out to radiant image.
Background technology
Utilize ray to moving target, as vehicle, goods etc. carry out the conventional means that scanography is current border control and customs inspection.Along with increasingly serious anti-terrorism situation and the needs of cracking down on smuggling, need to carry out complete inspection to the vehicle by border and the vehicle of being open to the custom.This just requires check system to realize moving target is carried out to automatic rapid scanning.For vehicle, need exactly driver not stop, steering vehicle, fast by check system, is accelerated inspection speed.
For this demand, more existing rays safety detection apparatus can carry out the scanography of vehicle, in scanography process sixty-four dollar question be system must be to vehicle in the region at occupant place dodge, prevent radiation injury.To this, be generally the sensor detected vehicle transport condition of taking prepackage, after the crew module who guarantees occupant place crosses, then the cargo hold of vehicle is started to radiation scanning.
But, because sensor cannot be distinguished the crew module of vehicle and cargo hold, also None-identified different vehicle crew module's length, therefore most these class vehicle rays safety detection apparatus all adopt full design content to retain sovereignty over a part of the country, designing system to for all tested gross vehicles is to dodge a regular length, this regular length is all larger than the crew module's of all types vehicle on the market length, thereby guarantees the safe avoidance to personnel in all types of tested vehicles.Under this design concept, when tested vehicle passenger compartment's length is very little, cargo hold length is when very large, undetected situation is just very serious, has potential safety hazard.
Summary of the invention
In view of this, the present invention proposes a kind of Apparatus and method for that moving target is carried out to radiant image, adopts non-contacting sensor to obtain the characteristic information of moving target, eliminates safe hidden trouble.
The invention provides a kind of system of moving target being carried out to radiation scanning, comprising: radiation source, for sending ray; Label reader, for reading the entrained information of data message label being mounted on moving target, and sends to control module; Detection module, for detection of moving target residing position in sense channel, and in the time that moving target arrives precalculated position, sends signal to control module; Control module, for the information based on from label reader and from the signal of detection module, sends the process of ray and controls to radiation source; Radiation detector, for receiving the ray through radiation scanning region, and converts digital signal to; Radiation imaging apparatus, for generating radiation image according to the digital signal of radiation detector; Wherein, in the entrained information of data message label, comprise length information, in length information instruction moving target, need the region that radiation dodges length or need to be with the length in the region of LDR ray scanning.
Preferably, in the entrained information of data message label, also comprise radiation scanning pattern information, radiation scanning pattern information is optionally indicated the one in following various scan pattern: 1. will not scan the Part I of moving target, to the Part II scanning of moving target; 2. to the Part I of moving target with LDR ray scanning, to the Part II of moving target with high dose rate ray scanning; 3. to moving target entirety with LDR ray scanning; 4. to moving target entirety with high dose rate ray scanning; 5. will not scan moving target entirety; Wherein, the Part I of moving target refers to needs region that radiation dodges or need to be with the region of LDR ray scanning in moving target, the Part II of moving target refers to does not need region that radiation dodges or need to be with the region of LDR ray scanning in moving target.
Preferably, data message label optionally adopts at least one in following various label: radio frequency identification (RFID) labels, X-Y scheme shape code, bar code.
Preferably, in the time that data message label is RFID label, system also comprises trigger module, for activate label reader in the time moving target arrival being detected.
Preferably, detection module is vision sensor.
Preferably, detection module comprises the first detection sub-module and the second detection sub-module, and wherein, the first detection sub-module is positioned at the upstream side in radiation scanning region, when being about to enter radiation scanning region at moving target, sends signal to control module; The second detection sub-module is positioned at the downstream in radiation scanning region, in the time that moving target crosses preset distance, sends signal to control module; The first detection sub-module/the second detection sub-module optionally adopts at least one in following various sensor: optoelectronic switch, light curtain, ground induction coil, pressure transducer.
Preferably, radiation source optionally adopts at least one in following various radiation source: electron linear accelerator, betatron Betatron, runway microtron RTM, neutron generator, Co-60 radioactive source, Cs-137 radioactive source, X-ray tube.
The present invention also provides a kind of system of moving target being carried out to radiation scanning, comprising: radiation source, for sending ray; Information reader, for reading the characteristic information of moving target, and sends to control module; Detection module, for detection of moving target residing position in sense channel, and in the time that moving target arrives precalculated position, sends signal to control module; Control module, for the moving target characteristic information based on from information reader and from the signal of detection module, sends the process of ray and controls to radiation source; Radiation detector, for receiving the ray through radiation scanning region, and converts digital signal to; Radiation imaging apparatus, for generating radiation image according to the digital signal of radiation detector; Wherein, information reader is connected with database module, in database module, store the length information corresponding with moving target characteristic information, length information is indicated needs the length in the region that radiation dodges or need to be with the length in the region of LDR ray scanning in moving target.
The present invention also provides a kind of method of moving target being carried out to radiation scanning, comprise: before moving target enters radiation scanning region, obtain by the data message label carrying on moving target the radiation scanning pattern that the length of Part I in moving target and moving target need, wherein Part I refers to needs part that radiation dodges or need to be with the part of LDR ray scanning in moving target; After moving target enters radiation scanning region, according to the residing position of moving target, control radiation source, according to radiation scanning pattern, moving target is carried out to radiation scanning; After moving target leaves radiation scanning region, control radiation source and stop radiation scanning.
The present invention also provides a kind of data message label, in label, store length information and radiation scanning pattern information, the length of the Part I in length information indicating target thing, radiation scanning pattern information is optionally indicated the one in following various scan pattern: 1. will not scan the Part I of object, to the Part II scanning of object; 2. to the Part I of object with LDR ray scanning, to the Part II of object with high dose rate ray scanning; 3. to object entirety with LDR ray scanning; 4. to object entirety with high dose rate ray scanning; 5. will not scan object entirety.
Beneficial effect of the present invention:
1, the present invention can accurately identify the scanography pattern that moving target need to carry out, and can accurately identify the length that length that moving target need to shield or LDR ray scanning check.
2, the present invention can realize complete high dose scanography to the goods of goods carrying vehicle.
3, for the occasion that allows in low-dose scanning mode, occupant to be scanned, the present invention can realize the complete rapid scanning inspection of moving target being carried out to 100%.
4, the present invention has multiple scanography pattern, can carry out scanography to dissimilar moving target, makes the range of application of automatic inspection system wider.
Brief description of the drawings
Fig. 1 is the system architecture diagram that moving target is carried out to radiation scanning of the present invention.
Fig. 2 is that the system of one embodiment of the invention is used view.
Fig. 3 is that the system of another embodiment of the present invention is used view.
Fig. 4 is that the headstock of vehicle in Fig. 3 embodiment is through the view in radiation scanning region.
Fig. 5 is the steering logic block diagram of radiation scanning system of the present invention to radiation source.
Fig. 6 is the data memory format of data message label in one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical scheme of the present invention is described in detail.
Fig. 1 illustrates the system architecture diagram that moving target is carried out to radiation scanning of the present invention, comprising:
Radiation source, it sends ray;
Label reader, it reads the entrained information of data message label being mounted on moving target, and sends to control module; Wherein, in data message label, store a length information, in this length information instruction moving target, need the length in the region that radiation dodges;
Detection module, it detects moving target residing position in sense channel, and sends signal to control module in the time that moving target arrives precalculated position;
Control module, its information based on from label reader and the signal from detection module, send the process of ray and control to radiation source;
Radiation detector, it receives through the ray in radiation scanning region and converts digital signal to;
Radiation imaging apparatus, its digital signal according to radiation detector generates radiation image.
In practical application scene, moving target can be all kinds of objects that need to carry out radiation scanning inspection, as lorry of various models in travelling, motorbus, pony car etc., or be placed in all types of target thing on transfer table, all can adopt system of the present invention to carry out radiation scanning inspection.
In an embodiment of the present invention, radiation source can adopt accelerator radiographic source, as electron linear accelerator, and betatron (Betatron), runway microtron (RTM), neutron generator etc.; Also can adopt radioactive source, as Co-60, Cs-137 etc.; Also can adopt X-ray tube.
In an embodiment of the present invention, data message label can adopt radio-frequency (RF) identification (Radio Frequency Identification, RFID) label, also can adopt bar code, Quick Response Code etc.Correspondingly, label reader should adopt the fetch equipment of RFID label fetch equipment, bar code or Quick Response Code etc.Wherein, in the time using RFID label, can also set up a trigger module for radiation scanning system, for activate RFID label fetch equipment in the time moving target arrival being detected.
In an embodiment of the present invention, detection module can adopt vision sensor, with reference to figure 2, shows the use constitutional diagram of radiation scanning system while adopting vision sensor.Wherein, moving target is a lorry, sails into, and travel incessantly from sense channel 110 left sides.Under the monitoring of vision sensor 108, first lorry arrives trigger module 101 (can adopt the low frequency trigger winding of optoelectronic switch, RFID label etc.) position, the trigger module 101 backward label reader 102 that is triggered sends signal, to activate label reader 102, label reader 102 starts to read to be mounted in the data message label on lorry, obtain a length information, suppose that length is the L (length that L is headstock, because driver is at headstock, should implement the radiation of headstock dodges), length information is sent to control module 106 by label reader 102.Under the monitoring of vision sensor 108, in the time that the headstock of lorry has left radiation scanning region 103 distance and has been more than or equal to L, vision sensor 108 sends signal to control module 106, control module 106 is according to receiving signal, control module 106 is controlled radiation source 104 and is started to send ray, the container of lorry is carried out to radiation scanning, and radiation detector 105 and radiation imaging apparatus carry out reception and the imaging processing of flying spot.
More than process to have realized the accurate radiation of lorry headstock is dodged.Owing to having obtained in advance the length information of headstock, system can not sent ray in the time that headstock enters scanning area, and once headstock leaves after scanning area, radiation source goes out bundle immediately, remainder is implemented to scanning, thereby under the prerequisite of guaranteeing personal security, can avoid to greatest extent goods undetected.
In Fig. 2 embodiment, sensor 107 (for example ground induction coil or pressure transducer) also can be set in scanning area 103 positions, effect is only in the time that sensor 107 is triggered, just to carry out radiation scanning flow process; If sensor 107 is not triggered, illustrate and do not have vehicle to sail into, do not carry out radiation scanning flow process.The personnel that can anti-locking system be surprisingly entered trigger and start radiation scanning, and personnel are caused to unexpected injury.
In an embodiment of the present invention, detection module also can adopt a series of sensor modules, with reference to figure 3, wherein, whether be about to enter scanning area 103 in order to detect vehicle, upstream side (being left side in Fig. 3) at radiation source 104 is provided with sensor module 109, and sensor module 109 is close to the border of scanning area 103; Simultaneously, enter scanning area real time position afterwards in order to detect vehicle, be provided with sensor module 108 in the downstream of radiation source 104, and sensor module 108 arranges successively along sense channel 110 on one side, while needs, between adjacent two sensor modules, can reserve certain distance.The sensor assembly 108 and 109 can adopt current existing sensor kind, as optoelectronic switch, light curtain, ground induction coil, pressure transducer etc. or its combination.
In radiation scanning process, compared with Fig. 2 embodiment, the difference of Fig. 3 embodiment is, in the time that sensor module 109 is triggered, it sends signal to control module 106, shows that headstock is about to enter radiation scanning region 103; Along with lorry continues to travel, sensor module 108 will be triggered successively, because the set-up mode of sensor module 108 is to be arranged in order along passage 110, and position and distance are known in advance, make it can the displacement of record object object in passage 110, the headstock length L that before basis, label reader 102 obtains, in the time that the displacement of lorry makes headstock leave scanning area 103, namely container will enter scanning area 103, now control module 106 is controlled radiation source 104 and is started bundle, and the container of lorry is implemented to scanning.
Fig. 4 shows the constitutional diagram of headstock in the time of overscan regions 103 in Fig. 3 embodiment, has omitted label reader 102 parts such as grade in Fig. 4.Wherein, taking the right side boundary of scanning area 103 as starting point (initial point O), in the time that sensor module 108 monitors headstock and arrives L position, radiation source 104 goes out bundle, realizes and under the prerequisite of guaranteeing personal security, avoids to greatest extent goods undetected.
On the other hand, according to the regulation of coherent radiation safety standard, except to specific region---for example, lorry headstock in Fig. 2 and Fig. 3---implement radiation and dodge and will not scanning, also can carry out radiation scanning with LDR ray to these regions, to not needing part that radiation dodges with high dose rate ray scanning, can, in radiation dose safe range, realize the very safety inspection to object.
In practical application scene, moving target can be divided into two parts and treat, Part I is with the region of LDR ray scanning, to be generally the region at personnel place, Part II is need to be with the region of LDR ray scanning, as the region at goods place.
Based on this, for moving target arranges applicable radiation scanning pattern, still taking the lorry in Fig. 2 as example, its length is that the headstock part of L is Part I, container part is Part II, can scan pattern be set to: with LDR ray scanning Part I, with high dose rate ray scanning Part II.During to vehicle scanography, vision sensor 108 detects notifies control module 106 when the Part I of lorry is about to enter scanning area 103, control module 106 makes radiation source 104 start to send LDR ray (restriction specifying lower than radiation danger criterion), vision sensor 108 detects that Part I has left and when scanning area 103 distance is more than or equal to L, notifies control module 106, control module 106 makes radiation source 104 be converted to and sends high dose rate ray, and Part II is scanned.In the present embodiment, radiation source 104 preferably adopts betatron Betatron or runway microtron RTM, can realize fast the conversion of Different Dose Rates ray.Both met coherent radiation safety standard according to above-mentioned processing, and realized again the full car scanning of vehicle, safety check reliability significantly improves.
For Fig. 3 embodiment, also can carry out above-mentioned scan pattern, particularly, in the time that being triggered, sensor module 109 notifies control module 106, show that Part I is about to enter radiation scanning region 103, control module 106 makes radiation source 104 send LDR ray; Along with lorry continues to travel, sensor module 108 is triggered successively, the Part I length L obtaining according to label reader 102, in the time that the Part I of lorry leaves scanning area 103 distance and is more than or equal to L, sensor module 108 is notified control module 106, make radiation source 104 be converted to and send high dose rate ray, lorry Part II is scanned.
In one embodiment of the invention, using moving target entirety as crew module, for example pony car or motorbus, need carry out that radiation is dodged or LDR scanning to car load, at this moment should scan pattern be set to: will not scan moving target entirety, or with LDR ray scanning, can guarantee the personal security in scanning process to moving target entirety.
In one embodiment of the invention, moving target is the goods to be checked being positioned on transfer table, does not need to carry out any dodging or the adjustment of roentgen dose X rate, tackles this goods entirety to be checked with high dose rate ray scanning.
For the setting of the above-mentioned radiation scanning pattern for dissimilar moving target, the present invention is stored in scan pattern information M in data message label, together with the length information L storing in label, as the control foundation to radiation source in radiation scanning system.
Fig. 5 shows the steering logic block diagram of radiation scanning system of the present invention to radiation source, when moving target enters sense channel, label reader will read the scan pattern information M and the length information L that in its label, carry, control going out Shu Shiji and going out the dose rate of beam line of radiation source according to scan pattern, realize to the Part I region at personnel place in moving target will not scan, to not comprising personnel's Part II sector scanning in moving target; Or to Part I region with LDR ray scanning, to Part II region with high dose rate ray scanning; Or to moving target entirety with LDR ray scanning; Or to moving target entirety with high dose rate ray scanning; Or moving target entirety is refused to ray scanning.
In the time that moving target passes through scanning area completely, control radiation source and stop sending ray, complete radiation scanning inspection.Refer to that by scanning area the afterbody of moving target has left the border in scanning area downstream completely, also can refer to that the afterbody of moving target has left the border in scanning area downstream and certain distance that moves on, preferably this distance is less than 3m.
Figure 6 shows that the data memory format of data message label in one embodiment of the invention, radiation scanning pattern that the present invention is proposed and the one definition of each several part length data structure, first byte of this definition is data field, follow-up part be verification and.Data field length is 8, most significant digit U represents whether will not scan the Part I of object, rear 7 represent the length of Part I in moving target, unit is 0.05m, 1 represents that the Part I length of moving target is 0.05m, and wherein 127 represent that the length of Part I equals the overall length of moving target (as table 1 below).Follow-up n position be verification and, can be the parity checking of 1, can be also the cyclic redundancy check (CRC) verification of 8 or other figure places.This verification and effect be the integrality for checking data, prevent the read-write error of data.Verification and not necessarily.Table 1 has provided the concrete form of a kind of above-mentioned scan mode and length data structure:
Table 1
According to the length of Part I in the type of moving target and moving target, the information of length information and applicable scan pattern is stored in RFID label (or X-Y scheme shape code, bar code), label is placed in to moving target inside or adheres to moving target outside, to be used in conjunction with radiation scanning system.The RFID label using can be passive, can be also active, or half is active.Preferably use anti-metal RFID label.
In addition, for vehicle, itself there is unique number-plate number or vehicle identification code VIN, the characteristic information (length information of vehicle and vehicle each several part) of reflection vehicle, therefore, in the present invention, also the label reader of radiation scanning system can be replaced with to information reader, reader reads the number-plate number or the VIN code of vehicle, and for this information reader connects a database module, storage scan pattern information M and the length information L corresponding with the number-plate number or VIN code in database.These information are fed back to system control module 106, carry out the treatment scheme providing in such scheme, can realize the vehicle of different automobile types is adopted to applicable scan pattern equally, complete radiation scanning inspection.In other embodiments, also can Hold sticker reader, and be that system is set up information reader, in the situation that label reader obtains data failure, read the number-plate number or the VIN code of vehicle with information reader.
In the above embodiment of the present invention, in the time that the Part I length of moving target is L, system is carried out radiation and is dodged the length of (or LDR scanning) and be more than or equal to L, wherein, length is set to equal L, means that control accuracy is high to accurately the dodging of Part I; Length is set to be greater than L, means to have strengthened to dodge length, is a kind of full setting content to retain sovereignty over a part of the country, can prevent the accidental exposure to personnel.
About Part I and the Part II of the moving target defining in the present invention, for convenience of description, the Part I providing in embodiment and Part II are continuous separately, and in other embodiments, Part I is likely discontinuous.For example: the pilothouse of certain oversize vehicle has driver, the center section of vehicle is container, the tailstock of vehicle is provided with passenger seat, and the Part I in this moving target comprises the passenger seat region of pilothouse and the tailstock of headstock, and Part II is middle container.To this, can be in label at least length L 1 of memory of driving chamber and the length L 2 of container, and relative set scan pattern, will not scan, only container be scanned headstock pilothouse and tailstock passenger seat region; Or headstock pilothouse and tailstock passenger seat region are scanned, container is scanned with high dose rate with LDR.
Above, in conjunction with specific embodiments technical scheme of the present invention is described in detail, described specific embodiment is used for helping to understand thought of the present invention.Within the derivation that those skilled in the art make on the basis of the specific embodiment of the invention and modification also belong to protection domain of the present invention.
Claims (15)
1. a system of moving target being carried out to radiation scanning, is characterized in that, comprising:
Radiation source, for sending ray;
Label reader, for reading the entrained information of data message label being mounted on moving target, and sends to control module;
Detection module, for detection of moving target residing position in sense channel, and in the time that moving target arrives precalculated position, sends signal to control module;
Control module, for the information based on from described label reader and from the signal of described detection module, sends the process of ray and controls to radiation source;
Radiation detector, for receiving the ray through radiation scanning region, and converts digital signal to;
Radiation imaging apparatus, for generating radiation image according to the digital signal of radiation detector; Wherein,
In the entrained information of described data message label, comprise length information, in described length information instruction moving target, need the region that radiation dodges length or need to be with the length in the region of LDR ray scanning.
2. system of moving target being carried out to radiation scanning as claimed in claim 1, it is characterized in that, in the entrained information of described data message label, also comprise radiation scanning pattern information, described radiation scanning pattern information is optionally indicated the one in following various scan pattern: 1. will not scan the Part I of moving target, to the Part II scanning of moving target; 2. to the Part I of moving target with LDR ray scanning, to the Part II of moving target with high dose rate ray scanning; 3. to moving target entirety with LDR ray scanning; 4. to moving target entirety with high dose rate ray scanning; 5. will not scan moving target entirety; Wherein, the Part I of moving target refers to needs region that radiation dodges or need to be with the region of LDR ray scanning in moving target, the Part II of moving target refers to does not need region that radiation dodges or need to be with the region of LDR ray scanning in moving target.
3. system of moving target being carried out to radiation scanning as claimed in claim 1 or 2, is characterized in that, described data message label optionally adopts at least one in following various label: radio frequency identification (RFID) labels, X-Y scheme shape code, bar code.
4. system of moving target being carried out to radiation scanning as claimed in claim 3, is characterized in that, in the time that described data message label is RFID label, described system also comprises trigger module, for activate described label reader in the time moving target arrival being detected.
5. system of moving target being carried out to radiation scanning as claimed in claim 1 or 2, is characterized in that, described detection module is vision sensor.
6. system of moving target being carried out to radiation scanning as claimed in claim 1 or 2, is characterized in that, described detection module comprises the first detection sub-module and the second detection sub-module, wherein,
The first detection sub-module is positioned at the upstream side in radiation scanning region, when being about to enter radiation scanning region at moving target, sends signal to control module;
The second detection sub-module is positioned at the downstream in radiation scanning region, in the time that moving target crosses preset distance, sends signal to control module;
The first detection sub-module/the second detection sub-module optionally adopts at least one in following various sensor: optoelectronic switch, light curtain, ground induction coil, pressure transducer.
7. system of moving target being carried out to radiation scanning as claimed in claim 1 or 2, it is characterized in that, described radiation source optionally adopts at least one in following various radiation source: electron linear accelerator, betatron Betatron, runway microtron RTM, neutron generator, Co-60 radioactive source, Cs-137 radioactive source, X-ray tube.
8. a system of moving target being carried out to radiation scanning, is characterized in that, comprising:
Radiation source, for sending ray;
Information reader, for reading the characteristic information of moving target, and sends to control module;
Detection module, for detection of moving target residing position in sense channel, and in the time that moving target arrives precalculated position, sends signal to control module;
Control module, for the moving target characteristic information based on from described information reader and from the signal of described detection module, sends the process of ray and controls to radiation source;
Radiation detector, for receiving the ray through radiation scanning region, and converts digital signal to;
Radiation imaging apparatus, for generating radiation image according to the digital signal of radiation detector; Wherein,
Described information reader is connected with database module, in database module, store the length information corresponding with described moving target characteristic information, described length information is indicated needs the length in the region that radiation dodges or need to be with the length in the region of LDR ray scanning in moving target.
9. system of moving target being carried out to radiation scanning as claimed in claim 8, it is characterized in that, in described database module, also store radiation scanning pattern information, described radiation scanning pattern information is optionally indicated the one in following various scan pattern: 1. will not scan the Part I of moving target, to the Part II scanning of moving target; 2. to the Part I of moving target with LDR ray scanning, to the Part II of moving target with high dose rate ray scanning; 3. to moving target entirety with LDR ray scanning; 4. to moving target entirety with high dose rate ray scanning; 5. will not scan moving target entirety; Wherein, the Part I of moving target refers to needs region that radiation dodges or need to be with the region of LDR ray scanning in moving target, the Part II of moving target refers to does not need region that radiation dodges or need to be with the region of LDR ray scanning in moving target.
10. the system of as claimed in claim 8 or 9 moving target being carried out radiation scanning, is characterized in that, described moving target is vehicle, and described characteristic information is vehicle identification code VIN.
11. 1 kinds are carried out the method for radiation scanning to moving target, it is characterized in that, comprising:
Before moving target enters radiation scanning region, obtain by the data message label carrying on moving target the radiation scanning pattern that the length of Part I in moving target and moving target need, wherein said Part I refers to needs part that radiation dodges or need to be with the part of LDR ray scanning in moving target;
After moving target enters radiation scanning region, according to the residing position of moving target, control radiation source, according to radiation scanning pattern, moving target is carried out to radiation scanning;
After moving target leaves radiation scanning region, control radiation source and stop radiation scanning.
12. methods of moving target being carried out to radiation scanning as claimed in claim 11, it is characterized in that, described radiation scanning pattern is the one in following various scan pattern: 1. will not scan the Part I of moving target, to the Part II scanning of moving target; 2. to the Part I of moving target with LDR ray scanning, to the Part II of moving target with high dose rate ray scanning; 3. to moving target entirety with LDR ray scanning; 4. to moving target entirety with high dose rate ray scanning; 5. will not scan moving target entirety; Wherein Part II refers to does not need part that radiation dodges or need to be with the part of LDR ray scanning in moving target.
13. 1 kinds of data message labels, it is characterized in that, in label, store length information and radiation scanning pattern information, the length of the Part I in described length information indicating target thing, described radiation scanning pattern information is optionally indicated the one in following various scan pattern: 1. will not scan the Part I of object, to the Part II scanning of object; 2. to the Part I of object with LDR ray scanning, to the Part II of object with high dose rate ray scanning; 3. to object entirety with LDR ray scanning; 4. to object entirety with high dose rate ray scanning; 5. will not scan object entirety.
14. data message labels as claimed in claim 13, is characterized in that, described data message label is RFID label, X-Y scheme shape code or bar code.
15. data message labels as claimed in claim 13, is characterized in that, in label, data field length is 8, and most significant digit represents whether will not scan the Part I of object, the length of the Part I of the rear 7 bit representation objects of data field.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410349185.7A CN104090308B (en) | 2014-07-22 | 2014-07-22 | System, method and the data message label of radiation scanning are carried out to mobile target |
| CN201710078929.XA CN106896118B (en) | 2014-07-22 | 2014-07-22 | System, method and the data information label of radiation scanning are carried out to mobile target |
| PCT/CN2015/072412 WO2016011804A1 (en) | 2014-07-22 | 2015-02-06 | System and method for performing radiation scanning on moving target, and data information label |
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Also Published As
| Publication number | Publication date |
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| CN106896118A (en) | 2017-06-27 |
| CN106896118B (en) | 2019-09-10 |
| CN104090308B (en) | 2018-03-23 |
| WO2016011804A1 (en) | 2016-01-28 |
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