CN103744102B - Intelligent detection method and control system for radioactive substances - Google Patents
Intelligent detection method and control system for radioactive substances Download PDFInfo
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- CN103744102B CN103744102B CN201410009014.XA CN201410009014A CN103744102B CN 103744102 B CN103744102 B CN 103744102B CN 201410009014 A CN201410009014 A CN 201410009014A CN 103744102 B CN103744102 B CN 103744102B
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Abstract
An intelligent radioactive substance detection method and a control system are disclosed, wherein the intelligent radioactive substance detection method comprises a radioactive intelligent detection module, a motor control module, a case identification module, a radioactive intensity detection module, a case positioning module, a radioactive element analysis module, an execution mechanism and a safety protection electronic control device, wherein the case identification module, the radioactive intensity detection module, the case positioning module and the radioactive element analysis module send signals to the radioactive intelligent detection module, and after the radioactive intelligent detection module confirms a case with a high radioactive intensity value, the time for the case to reach the center of a push plate is automatically calculated, and a time signal is sent to the motor control module; the invention relates to the field of security inspection, in particular to airports, ports and subways. The technical problems that the radioactive substance detection system cannot comprehensively detect the passed bags and can judge the bags of the radioactive source and the bags of the infected source, and the detection accuracy is improved are solved.
Description
Technical field
The present invention relates to safety inspection field, especially the intelligent detection method for radioactive substance in the article such as luggage, mailbag, parcel and Controlling System in airport, railway, port and other important discrepancy places.
Background technology
The Controlling System that radioactive substance detection device combines has been widely used in the baggage inspection in customs, airport, port and other relevant important discrepancy place at present, to prevent radioactive substance is illegally entered and left the border or illegally carries within the border, avoid radioactive substance harm national security and passenger safety, existing two kinds of technology: one be by hand-held tester to radioactivity ray in case and bag as gamma-rays, �� ray and radiation neutron carry out sampling Detection, to judge whether carry radioactive substance in case and bag; Two is that belt transport judges in conjunction with gamma meter, then manually takes out radioactive substance. Above prior art can only be inspected by random samples, can not carry out complete detection, check that radioactive source is reported to the police immediately, it does not have judges that radioactive source and infected source judge that Detection accuracy is low.
Summary of the invention
For above technical problem, the technical problem that the present invention solves is that the case and bag to process check comprehensively, and the radioactive source of detected case and bag is carried out dual judgement, the case and bag can differentiated radioactivity case and bag Yu be infected with, thus improves detection accuracy rate.
The technical scheme of the present invention: a kind of radioactive substance intelligent detection and control system is by radioactivity Intelligent Measurement module 1, motor control module 2, case and bag identification module, radioactive intensity detection module, case and bag locating module, radioelement analyzes module, topworks and safety precaution electronic controls composition, described motor control module 2 comprises motor and rotates forward module, motor reversal module, reseting module, described radioactivity Intelligent Measurement module 1 comprises case and bag mark unit, intensity level unit, the value that exceeds standard compares unit, radioelement analytical unit, center calculation unit, described case and bag identification module, described radioactive intensity detection module, described case and bag locating module, described radioelement is analyzed module and is sent a signal to described radioactivity Intelligent Measurement module 1, described case and bag identification module, described radioactive intensity inspection module, described case and bag locating module, described radioelement is analyzed module and is sent a signal to described radioactivity Intelligent Measurement module 1, the radioactive intensity of the detected case and bag of described intensity level unit record, the described value that exceeds standard compares the intensity level of two more close case and bag exceeded standard of unit, after described radioactivity Intelligent Measurement module 1 confirms to carry the case and bag of radioactive source, automatically the time that this case arrives push pedal center is calculated, send time signal to motor control module 2, described radioactivity Intelligent Measurement module 1 sends time signal to described motor control module 2, described motor control module 2 output motor lap signal is to stating topworks, and described safety precaution electronic controls sends safety precaution signal to described motor control module 2.
Control described topworks by described motor control module 2 after the motor reversal module that safety precaution electrical signal is input in described motor control module 2 to perform.
Described radioactivity Intelligent Measurement module 1 compares the radioactive intensity value of radioactive source and the source of infection automatically.
The distance that the motor rotating cycle of described motor lap signal should push away case and bag according to topworks calculates.
Described case and bag identification module transmits case and bag signal for recording the size of case and bag numbering and case and bag.
Described radioactive intensity detection module is used for the intensity level in detection of radioactive source.
Described case and bag locating module transmits the time that case and bag signal arrives push rod central position for calculating case and bag.
Described radioelement analyzes module for analyzing kind and the dosage of radioactive substance.
Described safety precaution electronic controls there will be one after being touched and feeds back signal to safety precaution signal module.
Described motor rotates forward module, and for controlling, topworks advances.
Described motor reversal module is for controlling the withdrawal of topworks.
Described reseting module is used for topworks when motor breaks down and automatically goes back to position.
Described case and bag mark unit gives the numbering N of case and bag and records case and bag length L.
The radioactive intensity of the detected case and bag of described intensity level unit record.
The described value that exceeds standard compares the intensity level of two more close case and bag exceeded standard of unit.
Described center calculation unit calculates the central position of the case and bag carrying radioactive source, and calculates the time t of the position at the arrival push rod center, central position of the case and bag carrying radioactive source.
Described central position arrives the case and bag length L1 that the time of the position at push rod center is the band radioactive source that described intensity level compares out, and phototube two is L to the distance at push rod center, and belt speed is S, t=(L-L1/2)/S.
A kind of intelligent detection method for radioactive substance, comprising: step one: if when case and bag are by radiation survey meter, and radioactive intensity is less than setting valve value, is judged to not carry radioactive source, case and bag normal transmission; Step 2: when case and bag pass through, radioactive intensity exceedes valve value, is determined with radioactive substance, this case and bag sequence number of software records, it is assumed that be N; Step 3: when the case and bag radioactive intensity of sequence number N+1 is lower than setting valve value, judge that N case and bag are as radioactive source; Step 4: if the radioactive intensity of N+1 is higher than setting valve value, then compares two case and bag radioactive intensity sizes, as N case and bag radioactive intensity is greater than N+1 bag radioactive intensity, judge that N case and bag are as radioactive source; Step 5: continue to compare N+2 case and bag as N case and bag radioactive intensity is less than N+1 case and bag radioactive intensity; If not carrying out next case and bag in 2S, just think that current case and bag are radioactive sources; Repeating above-mentioned steps, judging N+2 case and bag and the radioactive intensity of N+1 case and bag, until finding out maximum value; Step 6: the numbering being judged to radioactive source case and bag is sent to Controlling System, and prepare to push away bag.
Preferably, described threshold value setting method is: step one: if V=2 and Xa+1, Xa+2 wherein have is greater than B and Xa > Xa+1 > Xa+2 so these case and bag do not carry radioactive source let pass; Step 2: if V=2 and Xa+1, Xa+2 wherein have be greater than B and (Xa+1 > Xa+2) && (Xa+1 > Xa) so this bag be that radioactive source carries case and bag and to be isolated; Step 3: if V=2 and Xa+1, Xa+2 wherein have is greater than B and (Xa+2 > Xa+1 > Xa) if so next case and bag emphasis closes V > 2 and Xa+1, Xa+2 ... Xa+v wherein has the value being greater than B, and (X(((a+v)/2)+1) > X(((a+v)/2)+2)) &&(X(((a+v)/2)+1) > X(((a+v)/2)-2)) so these case and bag be exactly that radioactive source carries case and bag; Step 4: if V > 2 and Xa+1, Xa+2 ... Xa+v wherein has the value being greater than B, and (X(((a+v)/2)+1) > X(((a+v)/2)+2)) &&(X(((a+v)/2)+1) > X(((a+v)/2)-2)) so these case and bag be exactly that radioactive source carries case and bag; Step 5: if there being Xa+V > > Xa and case and bag have the value being greater than B in the data of out-of-date reception, (X(((a+v)/2)+1) > X(((a+v)/2)+2) > X(((a+v)/2)-1) > > Xa) &&(Xa+v > B), so the case and bag of back may also have radioactive source; Wherein B to be the alarm valve value that sets, V be radioelement data amount check that a bag receives through radiation survey meter, a are current reception numerical value number, Xa+1, Xa+2 ... Xa+V is radioelement value.
Accompanying drawing explanation
Fig. 1 is radioactive substance intelligent detection and control system workflow schematic diagram.
Description of reference numerals: 1 radioactivity Intelligent Measurement module; 2 motor control modules.
Specific embodiment
As shown in Figure 1 when detected case and bag are through out-of-date, case and bag identification module, radioactive intensity detection module, radioelement analyzes module, case and bag locating module, the detected case and bag of process are carried out the collection of data, it is sent to radioactivity Intelligent Measurement module 1, radioactivity Intelligent Measurement module by after carrying out dual judgement and detecting to detected case and bag, if detected case and bag are the case and bag carrying radioactive source, radioactivity Intelligent Measurement module 1 sends a time signal to motor control module 2, the collection of time signal is sent a motor rotating cycle signal to topworks by motor control module 2, topworks performs an action, when through belt case and bag from very close to when, case and bag are had to be clipped in the edge of belt, now safety precaution electronic controls just sends safety precaution electrical signal to motor control module 2, and motor control module 2 starts motor reversal module topworks and performs work.
Control described topworks by described motor control module 2 after the motor reversal module that safety precaution electrical signal is input in described motor control module 2 to perform.
Described radioactivity Intelligent Measurement module 1 compares the radioactive intensity value of radioactive source and the source of infection automatically. The distance that the motor rotating cycle of motor lap signal should push away case and bag according to topworks calculates. Case and bag identification module transmits case and bag signal for recording the size of case and bag numbering and case and bag. Radioactive intensity detection module is used for the intensity level in detection of radioactive source. Case and bag locating module transmits the time that case and bag signal arrives push rod central position for calculating case and bag. Radioelement analyzes module for analyzing kind and the dosage of radioactive substance. Safety precaution electronic controls there will be one and feeds back signal to safety precaution signal module after being touched. Motor rotates forward module, and for controlling, topworks advances. Motor reversal module is for controlling the withdrawal of topworks. Reseting module is used for topworks when motor breaks down and automatically goes back to position. Case and bag mark unit gives the numbering N of case and bag and records case and bag length L. The radioactive intensity of the detected case and bag of intensity level record data cell record. Intensity level compares the intensity level of two more close case and bag exceeded standard of data cell. Described center calculation unit calculate through described in the value that exceeds standard compare the central position of the case and bag that intensity level is big in the intensity level of the case and bag that close two that unit determines exceed standard, and calculate the time t of the position at the arrival push rod center, central position of the case and bag that intensity level is big in the intensity level of the case and bag that close two exceed standard. In the intensity level of described two close case and bag exceeded standard, the central position of the case and bag that intensity level is big arrives time t=(the L-L1/2)/S of the position at push rod center, wherein, L is the distance of phototube two to push rod center, L1 is that the value that exceeds standard compares the length of the case and bag that intensity level is big in the intensity level of the case and bag that close two that unit compares out exceed standard, and S is belt speed.
Intelligent detection method for radioactive substance, comprising: step one: if when case and bag are by radiation survey meter, and radioactive intensity is less than setting valve value, is judged to not carry radioactive source, case and bag normal transmission; Step 2: when case and bag pass through, radioactive intensity exceedes valve value, is determined with radioactive substance, this case and bag sequence number of software records, it is assumed that be N; Step 3: when the case and bag radioactive intensity of sequence number N+1 is lower than setting valve value, judge that N case and bag are as radioactive source; Step 4: if the radioactive intensity of N+1 is higher than setting valve value, then compares two case and bag radioactive intensity sizes, as N case and bag radioactive intensity is greater than N+1 bag radioactive intensity, judge that N case and bag are as radioactive source; Step 5: continue to compare N+2 case and bag as N case and bag radioactive intensity is less than N+1 case and bag radioactive intensity; If not carrying out next case and bag in 2S, just think that current case and bag are radioactive sources; Repeating above-mentioned steps, judging N+2 case and bag and the radioactive intensity of N+1 case and bag, until finding out maximum value; Step 6: the numbering being judged to radioactive source case and bag is sent to Controlling System, and prepare to push away bag.
Wherein threshold value setting method is: step one: if V=2 and Xa+1, Xa+2 wherein have is greater than B and Xa > Xa+1 > Xa+2 so these case and bag do not carry radioactive source let pass; Step 2: if V=2 and Xa+1, Xa+2 wherein have be greater than B and (Xa+1 > Xa+2) && (Xa+1 > Xa) so this bag be that radioactive source carries case and bag and to be isolated; Step 3: if V=2 and Xa+1, Xa+2 wherein have is greater than B and (Xa+2 > Xa+1 > Xa) if so next case and bag emphasis closes V > 2 and Xa+1, Xa+2 ... Xa+v wherein has the value being greater than B, and (X(((a+v)/2)+1) > X(((a+v)/2)+2)) &&(X(((a+v/2)+1) > X(((a+v)/2)-2)) so these case and bag be exactly that radioactive source carries case and bag; Step 4: if V > 2 and Xa+1, Xa+2 ... Xa+v wherein has the value being greater than B, and (X(((a+v)/2)+1) > X(((a+v)/2)+2)) &&(X(((a+v)/2)+1) > X(((a+v)/2)-2)) so these case and bag be exactly that radioactive source carries case and bag; Step 5: if there being Xa+V > > Xa and case and bag have the value being greater than B in the data of out-of-date reception, (X(((a+v)/2)+1) > X(((a+v)/2)+2) > X(((a+v)/2)-1) > > Xa) &&(Xa+v > B), so the case and bag of back may also have radioactive source; Wherein B to be the alarm valve value that sets, V be radioelement data amount check that a bag receives through radiation survey meter, a are current reception numerical value number Xa+1, Xa+2 ... Xa+V is radioelement value.
Claims (17)
1. a radioactive substance intelligent detection and control system is by radioactivity Intelligent Measurement module (1), motor control module (2), case and bag identification module, radioactive intensity detection module, case and bag locating module, radioelement analyzes module, topworks and safety precaution electronic controls composition, described motor control module (2) comprises motor and rotates forward module, motor reversal module, reseting module, described radioactivity Intelligent Measurement module (1) comprises case and bag mark unit, intensity level unit, the value that exceeds standard compares unit, radioelement analytical unit, center calculation unit, it is characterised in that: described case and bag identification module, described radioactive intensity detection module, described case and bag locating module, described radioelement is analyzed module and is sent a signal to described radioactivity Intelligent Measurement module (1), the radioactive intensity of the detected case and bag of described intensity level unit record, the described value that exceeds standard compares the intensity level of two more close case and bag exceeded standard of unit, after described radioactivity Intelligent Measurement module (1) confirms the case and bag of band radioactive source, automatically the time that these case and bag arrive push pedal center is calculated, send time signal to motor control module (2), described radioactivity Intelligent Measurement module (1) sends time signal to described motor control module (2), described motor control module (2) output motor lap signal gives described topworks, and described safety precaution electronic controls sends safety precaution signal to described motor control module (2).
2. a kind of radioactive substance intelligent detection and control system according to claim 1, it is characterised in that: control described execution structure by described motor control module (2) after the motor reversal module that safety precaution electrical signal is input in described motor control module (2) and perform.
3. a kind of radioactive substance intelligent detection and control system according to claim 1, it is characterised in that: described radioactivity Intelligent Measurement module (1) compares the radioactive intensity value of radioactive source and the source of infection automatically.
4. a kind of radioactive substance intelligent detection and control system according to claim 1, it is characterised in that: the distance that the motor rotating cycle of described motor lap signal should push away case and bag according to topworks calculates.
5. a kind of radioactive substance intelligent detection and control system according to claim 1, it is characterised in that: described case and bag identification module transmits case and bag signal for recording the size of case and bag numbering and case and bag.
6. a kind of radioactive substance intelligent detection and control system according to claim 1, it is characterised in that: described radioactive intensity detection module is used for the intensity level in detection of radioactive source.
7. a kind of radioactive substance intelligent detection and control system according to claim 1, it is characterised in that: described case and bag locating module transmits the time that case and bag signal arrives push rod central position for calculating case and bag.
8. a kind of radioactive substance intelligent detection and control system according to claim 1, it is characterised in that: described radioelement analyzes module for analyzing kind and the dosage of radioactive substance.
9. a kind of radioactive substance intelligent detection and control system according to claim 1, it is characterised in that: described safety precaution electronic controls there will be one after being touched and feeds back signal to safety precaution signal module.
10. a kind of radioactive substance intelligent detection and control system according to claim 1, it is characterised in that: described motor rotates forward module, and for controlling, topworks advances.
11. a kind of radioactive substance intelligent detection and control systems according to claim 1, it is characterised in that: described motor reversal module is for controlling the withdrawal of topworks.
12. a kind of radioactive substance intelligent detection and control systems according to claim 1, it is characterised in that: described reseting module is used for topworks when motor breaks down and automatically goes back to position.
13. a kind of radioactive substance intelligent detection and control systems according to claim 1, it is characterised in that: described case and bag mark unit gives the numbering N of case and bag and records case and bag length L.
14. a kind of radioactive substance intelligent detection and control systems according to claim 1, it is characterized in that: described center calculation unit calculates the central position of the case and bag of band radioactive source, and carry the time t of the position at the arrival push rod center, central position of the case and bag of radioactive source.
15. a kind of radioactive substance intelligent detection and control system according to claim 14, it is characterized in that: described central position arrives the case and bag length L1 that the time of the position at push rod center is the band radioactive source that described intensity level compares out, phototube two is L to the distance at push rod center, belt speed is S, t=(L-L1/2)/S.
16. 1 kinds of intelligent detection method for radioactive substance, it is characterised in that: step one: if when case and bag are by radiation survey meter, radioactive intensity is less than setting valve value, is judged to not carry radioactive source, case and bag normal transmission; Step 2: when case and bag pass through, radioactive intensity exceedes valve value, is determined with radioactive substance, this case and bag sequence number of software records, it is assumed that be N; Step 3: when the case and bag radioactive intensity of sequence number N+1 is lower than setting valve value, judge that N case and bag are as radioactive source; Step 4: if the radioactive intensity of N+1 is higher than setting valve value, then compares two case and bag radioactive intensity sizes, as N case and bag radioactive intensity is greater than N+1 bag radioactive intensity, judge that N case and bag are as radioactive source; Step 5: continue to compare N+2 case and bag as N case and bag radioactive intensity is less than N+1 case and bag radioactive intensity; If not carrying out next case and bag in 2S, just think that current case and bag are radioactive sources; Repeating above-mentioned steps, judging N+2 case and bag and the radioactive intensity of N+1 case and bag, until finding out maximum value; Step 6: the numbering being judged to radioactive source case and bag is sent to Controlling System, and prepare to push away bag.
17. a kind of intelligent detection method for radioactive substance according to claim 16, it is characterized in that, described threshold value setting method is: step one: if V=2 and Xa+1, Xa+2 wherein have is greater than B and Xa > Xa+1 > Xa+2, then these case and bag do not carry radioactive source clearance; Step 2: if V=2 and Xa+1, Xa+2 wherein have is greater than B and (Xa+1 > Xa+2) (Xa+1 > Xa), this bag is that radioactive source carries case and bag and isolates; Step 3: if V=2 and Xa+1, Xa+2 wherein have is greater than B and (Xa+2 > Xa+1 > Xa), then these case and bag are let pass; Step 4: if V > 2 and Xa+1, Xa+2 ... Xa+v wherein has the value being greater than B, and (X(((a+v)/2)+1) > X(((a+v)/2)+2)) &&(X(((a+v)/2)+1) > X(((a+v)/2)-2)), then these case and bag are that radioactive source carries case and bag; Step 5: if there being Xa+V > > Xa and case and bag have the value being greater than B in the data of out-of-date reception, (X(((a+v)/2)+1) > X(((a+v)/2)+2) > X(((a+v)/2)-1) > > Xa) &&(Xa+v > B), then the case and bag of back may also have radioactive source; Wherein B to be the alarm valve value that sets, V be radioelement data amount check that a bag receives through radiation survey meter, a are current reception numerical value number Xa+1, Xa+2 ... Xa+V is radioelement value.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201237645Y (en) * | 2008-04-30 | 2009-05-13 | 宋跃进 | On-line positioning and monitoring apparatus for radioactive source |
| CN101606083A (en) * | 2006-10-27 | 2009-12-16 | 洛斯阿拉莫斯国家安全股份有限公司 | Detection of particles and application thereof aspect safety and portal monitoring |
| CN201698028U (en) * | 2010-07-06 | 2011-01-05 | 北京树诚测控技术有限公司 | Radioactive source monitoring system |
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| JP4869192B2 (en) * | 2007-09-18 | 2012-02-08 | 日立Ｇｅニュークリア・エナジー株式会社 | Radioactivity measurement method for radioactive waste |
| JP2010101861A (en) * | 2008-10-27 | 2010-05-06 | Fujitsu Ltd | Radiation work management device, base station, and radiation work management program |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101606083A (en) * | 2006-10-27 | 2009-12-16 | 洛斯阿拉莫斯国家安全股份有限公司 | Detection of particles and application thereof aspect safety and portal monitoring |
| CN201237645Y (en) * | 2008-04-30 | 2009-05-13 | 宋跃进 | On-line positioning and monitoring apparatus for radioactive source |
| CN201698028U (en) * | 2010-07-06 | 2011-01-05 | 北京树诚测控技术有限公司 | Radioactive source monitoring system |
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Denomination of invention: Intelligent detection method for radioactive substance and control system Effective date of registration: 20200407 Granted publication date: 20160601 Pledgee: Beijing Yanhong Financing Guarantee Co.,Ltd. Pledgor: SINOCLOUD WISDOM (BEIJING) TECHNOLOGY Co.,Ltd. Registration number: Y2020990000282 |
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