CN105137469A - Radioactive detection system and radioactive detection method - Google Patents
Radioactive detection system and radioactive detection method Download PDFInfo
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- CN105137469A CN105137469A CN201510299129.1A CN201510299129A CN105137469A CN 105137469 A CN105137469 A CN 105137469A CN 201510299129 A CN201510299129 A CN 201510299129A CN 105137469 A CN105137469 A CN 105137469A
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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 nuclear radiation, e.g. of natural or induced radioactivity
- G01V5/02—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for surface logging, e.g. from aircraft
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Abstract
Embodiments of the invention disclose a radioactive detection system and a radioactive detection method, and relate to the technical field of radiation monitoring. By adopting the system and the method, personnel do not need to approach or enter a radiation area or suspected radiation area with an instrument in hand for detection just like that in a traditional measurement method, and the risk is reduced. The system is composed of an unmanned rotor aircraft and a ground control terminal. The unmanned rotor aircraft comprises an unmanned rotor flying platform, and a radiation measuring platform borne on the unmanned rotor flying platform. The radiation measuring platform comprises a storage module used to store all measurement data and detection results, an energy spectrum detection module used to acquire energy spectrum information in a current environment, a multi-channel analysis module used to preliminarily process the energy spectrum information, a data processing module used to integrate and package location information, preliminary processing result data and dose rate monitoring information, and a wireless radio-frequency transmission module used to send a data packet to the ground control terminal. The radioactive detection system and the radioactive detection method of the invention are suitable for remotely detecting the radiation dose rate.
Description
Technical field
The present invention relates to Radiation monitoring technical field, particularly relate to a kind of radioactivity prospecting system and radioactive detection methods radioactivity prospecting system radioactive detection methods
Background technology
Along with the development at Military and civil fields of nuclear technology, the requirement for nuclear energy safety more improves.Radiation monitoring technology is widely applied to the aspect such as the guarantee of nuclear industry production safety, industrial accident prevention and disaster assistance process, so that can radioactive intensity in real time in monitoring environment, and the safety of guarantee staff and emergency personnel.Wherein, especially need to fix a point to monitor continuously to gamma-emitting dose rate, and measure radiation safety region.Traditional radioactive detection methods is mainly based on fixed, vehicular and manned vehicle, and fixed measurement is exactly place detector to measure radioactivity in fixed position, and this method lacks locomotivity, under complex environment, lack applicability.Vehicular measuring method be detector is placed on there is locomotivity vehicle on, the method cannot use in complicated terrain environment.Secondly, the method needs personnel's steering vehicle to enter active area, may cause radiation injury to personnel, and especially in gamma activity measuring process, this measuring method is more inapplicable.Manned aircraft needs personnel to drive to be loaded with the aircraft of detecting devices at target flying overhead, and a whole set of detection system volume is comparatively large, and cost is higher, is also difficult to use under complex environment.
Summary of the invention
Embodiments of the invention provide a kind of radioactivity prospecting system and radioactive detection methods radioactive detection methods, can avoid personnel in conventional measuring methods carry instrument near or enter mode radiation areas or doubtful radiation areas carrying out detecting, reduce operation dangerous, ensure that personnel's is healthy.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, embodiments of the invention provide a kind of radioactivity prospecting system,
Described system is made up of unmanned rotary wing aircraft and ground control terminal, and described unmanned rotary wing aircraft comprises unmanned rotary wing flying platform, and is carried on the actinometry platform of described unmanned rotary wing flying platform; Described ground control terminal, for controlling the state of flight of described unmanned rotary wing aircraft, and accepts the packet of described actinometry platform transmission;
Described actinometry platform comprises: supply module, dose rate monitoring modular, power spectrum detecting module, multi-channel analysis module, data processing module and wireless radio frequency transmission module and storage module;
Described dose rate monitoring modular at least comprises: a GM pipe, the 2nd GM pipe and locating module, a described GM pipe and/or described 2nd GM pipe, for obtaining the dose rate monitoring information in current environment, and described dose rate monitoring information is transmitted to described data processing module; The range of a described GM pipe is lower than described 2nd GM pipe; The electronics of described wireless radio frequency transmission module and the electronics of described locating module hold together and hold together with the electronics of a described GM pipe and the electronics of described 2nd GM pipe; The electronics of described data processing module and the electronics of described wireless radio frequency transmission module hold together, and hold together and hold together with the electronics of a described GM pipe and the electronics of described 2nd GM pipe with the electronics of described locating module; Locating module is for obtaining current positional information, and described positional information is transmitted to described data processing module;
Described power spectrum detecting module, for obtaining the spectral information in current environment, and to described multi-channel analysis module transfer;
Described multi-channel analysis module, for carrying out rough handling to described spectral information, and transmits to described data processing module according to preliminary processing results;
Described data processing module, for carrying out integration packing process to described positional information, described preliminary processing results data and described dose rate monitoring information;
Described wireless radio frequency transmission module, for sending the packet obtained through integrating packing process to described ground control terminal.
Described storage module is for storing all measurement results, wherein at least comprises the dose rate information that described dose rate monitoring modular records, spectral information that described power spectrum detecting module records and the positional information that described locating module records.Wireless radio frequency transmission module wireless radio frequency transmission module wireless radio frequency transmission module wireless radio frequency transmission module
Second aspect, embodiments of the invention also provide a kind of radioactive detection methods, described method is used for a kind of radioactivity prospecting system, described system is made up of unmanned rotary wing aircraft and ground control terminal, described platform comprises unmanned rotary wing flying platform, and is carried on the actinometry platform of described unmanned rotary wing flying platform; Described ground control terminal, for controlling the state of flight of described unmanned rotary wing aircraft, and accepts the packet of described actinometry platform transmission;
Described actinometry platform comprises: supply module, dose rate monitoring modular, power spectrum detecting module, multi-channel analysis module, data processing module and wireless radio frequency transmission module and storage module;
Described dose rate monitoring modular at least comprises: a GM pipe, the 2nd GM pipe; The range of a described GM pipe is lower than described 2nd GM pipe; The electronics of described 3G transport module and the electronics of described locating module hold together and hold together with the electronics of a described GM pipe and the electronics of described 2nd GM pipe; The electronics of described data processing module and the electronics of described 3G module hold together, and hold together and hold together with the electronics of a described GM pipe and the electronics of described 2nd GM pipe with the electronics of described locating module;
Described method comprises:
When described people's rotor flying platform receives the control signal of described ground control terminal, and during according to described control signal maintenance state of flight, obtain current positional information by described locating module;
Obtain the spectral information in current environment by described power spectrum detecting module, and by described multi-channel analysis module, rough handling is carried out to described spectral information, and obtain preliminary processing results; Obtained the dose rate monitoring information in current environment by a described GM pipe and/or described 2nd GM pipe simultaneously;
By described data processing module, integration packing process is carried out to described positional information, described preliminary processing results data and described dose rate monitoring information;
By described wireless radio frequency transmission module, the packet obtained through integrating packing process is sent to described ground control terminal.Wireless radio frequency transmission module wireless radio frequency transmission module wireless radio frequency transmission module wireless radio frequency transmission module
The radioactivity prospecting system that the embodiment of the present invention provides and radioactive detection methods, handoff technique voluntarily can be managed in conjunction with two GM, unmanned air vehicle technique and Radio Transmission Technology, the unmanned plane controlling to carry dose rate detector and radioactive energy spectrum detector enters radiation areas, and detection data is sent to staff by wireless transmission, thus effectively extend the size of radiopharmaceutical agent dose rate measurement range and measured zone, avoid personnel in conventional measuring methods carry instrument near or enter mode radiation areas or doubtful radiation areas carrying out detecting, reduce operation dangerous, guarantee personnel's is healthy.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of the radioactivity prospecting system that Fig. 1 provides for the embodiment of the present invention;
The schematic diagram of the unmanned rotary wing aircraft of the radioactivity prospecting system that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the actinometry platform that Fig. 3 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of radioactivity prospecting system 10, as shown in Figure 1, system 10 is made up of unmanned rotary wing aircraft 11 and ground control terminal 12, unmanned rotary wing aircraft 11 comprises unmanned rotary wing flying platform 111 as shown in Figure 2, and is carried on the actinometry platform 112 of unmanned rotary wing flying platform 111; Ground control terminal 12, for controlling the state of flight of unmanned rotary wing aircraft 11, and accepts the packet of actinometry platform 112 transmission.
Actinometry platform 112 comprises: supply module 1121, dose rate monitoring modular 1122, power spectrum detecting module 1123, multi-channel analysis module 1124, data processing module 1125 and wireless radio frequency transmission module 1126 and storage module 1127.
Dose rate monitoring modular 1122 at least comprises: a GM pipe, the 2nd GM pipe and locating module, and a GM pipe and/or the 2nd GM manage, and for obtaining the dose rate monitoring information in current environment, and are transmitted to data processing module 1125 by dose rate monitoring information; The range of the one GM pipe is managed lower than the 2nd GM; The electronics of the electronics of wireless radio frequency transmission module 1126 and locating module and a GM pipe and the electronics of the 2nd GM pipe hold together; The electronics of data processing module 1125 and the electronics of wireless radio frequency transmission module 1126 hold together, and hold together with the electronics of storage module 1127.
Wherein, in preferred version of the present invention, data processing module 1125 is made up of the embedded main board that Inter processor is housed, and its storage area is not less than 60G, and operating system is windows system or Linux system.
It should be noted that, the range of a GM pipe of indication is managed lower than the 2nd GM in embodiments of the present invention.A GM pipe also can be called as lower range GM pipe in the art, or the responsive GM pipe of LDR; 2nd GM pipe also can be called as high range GM and manage, or the responsive GM pipe of high dose rate.Wherein, the high pressure conversion mode of a GM pipe and the 2nd GM pipe adopts DC-DC mode to carry out DC voltage conversion.Voltage transformation module is further comprises at dose rate detection module 1122.The electronics of the electronics of voltage transformation module and the electronics of a GM pipe and the 2nd GM pipe holds together, and manages and the voltage levels of the 2nd GM pipe for control inputs the one GM.
One GM pipe and the 2nd GM pipe are the sensitive GM pipe of γ; The detection limit of the one GM pipe is less than or equal to 0.1 μ Sv/h, and the detection limit of the 2nd GM pipe is less than the detection upper limit of a GM pipe; One GM pipe and the 2nd GM pipe outer wall are all coated with the sheet metal for energy compensating.The switching threshold of the one GM pipe and the 2nd GM pipe is that dual threshold switches, when from heavy dose of rate environmental change to low dose of rate environment, adopt the detection limit of the 2nd GM pipe of high dose rate sensitivity as switching threshold, when from low dose of rate environmental change to heavy dose of rate environment, adopt the detection upper limit of a GM pipe of LDR sensitivity as switching threshold.
The outer wall material of the one GM pipe and the 2nd GM pipe is 446 stainless steels, and the tinfoil paper that stainless steel outer wall covers 0.5mm, as the sheet metal for energy compensating, leaves the gap of 5mm in the middle of the sheet metal for energy compensating.
In the present embodiment, dose rate detector also comprises the voltage transformation module for providing positive or negative high voltage to power; Dose rate detector high pressure conversion mode adopts DC-DC mode to carry out DC voltage conversion.Such as: voltage transformation module is that positive or negative high voltage is powered and included transformation chip, transformer and rectifier circuit, supply module 1121 can provide 5V voltage, 25V is brought up to through transformation chip in voltage transformation module, through transformer, 25V is increased to 250V again, pass through rectifier circuit, voltage is become ± 250V, power to the first and second GM pipes.
Storage module 1127, for storing all measurement results, wherein at least comprises the dose rate information that described dose rate monitoring modular records, spectral information that described power spectrum detecting module records and the positional information that described locating module records.Thus avoid factor data transmission problem and cause measurement data preservation imperfect.
Wherein, locating module can be implemented as global position system module, such as: GPS module, Beidou navigation module, Galileo system navigation module, or glonass system navigation module.Further, on the basis of global position system module, can also combining wireless communication network such as: 3GPP, wi-fi, position, thus further improve the speed of location.
Power spectrum detecting module 1123, for obtaining the spectral information in current environment, and transmits to multi-channel analysis module 1124.
Multi-channel analysis module 1124, for carrying out rough handling to spectral information, and transmits to data processing module 1125 according to preliminary processing results.
Data processing module 1125, carries out integration packing process for location information, preliminary processing results data and dose rate monitoring information.
It should be noted that, electronics in the present embodiment is metallic member electronic component possessing conducting function and electric signal transmission function, the electronics of an electronic component and the electronics of another electronic component hold together, can be understood as a metallic member electronic component possessing conducting function and electric signal transmission function to pass through to weld with the metallic member another electronic component possessing conducting function and electric signal transmission function, the technique such as one-body molded is fused into an entirety, such as: in preferred version as shown in Figure 3, each element in dose rate detector described in the present embodiment can be welded on same veneer.
Wireless radio frequency transmission module 1126, for by through integration packing process the packet that obtains earthward control terminal 12 send.Specifically for by through integration packing process the packet that obtains by 3G network earthward control terminal 12 send; Wireless radio frequency transmission module 1126, also for accessing or switch seamlessly to the wireless network of other a kind of standards except 3G network, and by through integration packing process the packet that obtains by the wireless network that accesses or switch seamlessly to earthward control terminal 12 send.Concrete, can adopt 32 ARMcortex-M3 microprocessors (model LPC1549) in dose rate detecting module 1122 as shown in Figure 3, this processor host frequency is 72MHz, can carry out time resolution more accurately.It is the radio-frequency module of Hp-Plus that wireless radio frequency transmission module 1126 can adopt model to be the 3G module of MU609 and Freewave company model.Storage module 1127 can adopt the memory card of 120G solid state hard disc or more than 60G.Detector selected by power spectrum detecting module 1123 is scintillator detector or normal temperature semiconductor detector.Multichannel analyzer integrated in multi-channel analysis module 1124 is digital integral multichannel analyzer.
The radioactivity prospecting system that the embodiment of the present invention provides, handoff technique, unmanned air vehicle technique and Radio Transmission Technology voluntarily can be managed in conjunction with two GM, the unmanned plane controlling the dose rate detector carrying two GM pipe enters radiation areas, and detection data is sent to staff by wireless transmission, thus effectively extend the size of radiopharmaceutical agent dose rate measurement range and measured zone, avoid personnel in conventional measuring methods carry instrument near or enter mode radiation areas or doubtful radiation areas carrying out detecting, reduce operation dangerous, ensure that personnel's is healthy.
The embodiment of the present invention also provides a kind of radioactive detection methods being applied to said system 10, and method comprises:
Step 1, receive the control signal of ground control terminal when people's rotor flying platform, and when keeping state of flight according to control signal, obtain current positional information by locating module.
Step 2, the spectral information obtained by power spectrum detecting module in current environment, and by multi-channel analysis module, rough handling is carried out to spectral information, and obtain preliminary processing results; Obtained the dose rate monitoring information in current environment by a GM pipe and/or the 2nd GM pipe simultaneously.
Step 3, to be carried out integration packing process by data processing module location information, preliminary processing results data and dose rate monitoring information, and result is stored with storage module.
Wherein, can have multiple by the concrete mode that the packet obtained through integrating packing process sends to described ground control terminal, the preferred version of the present embodiment is:
The packet obtained through integrating packing process is sent to described ground control terminal by 3G network;
Or, access or switch seamlessly to the radio frequency network of other a kind of standards except 3G network, and the packet obtained through integrating packing process is sent to described ground control terminal by the wireless network accessing or switch seamlessly to.
Step 4, the packet control terminal transmission earthward that will be obtained through integration packing process by wireless radio frequency transmission module.
The radioactive detection methods that the embodiment of the present invention provides, handoff technique voluntarily can be managed in conjunction with two GM, unmanned air vehicle technique and Radio Transmission Technology, two dose rate detector of GM pipe is carried in control and the unmanned plane of eds detector enters radiation areas, and detection data is sent to staff by wireless transmission, thus effectively extend the size of radiopharmaceutical agent dose rate measurement range and measured zone, avoid personnel in conventional measuring methods carry instrument near or enter mode radiation areas or doubtful radiation areas carrying out detecting, reduce operation dangerous, guarantee personnel's is healthy.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for apparatus embodiments, because it is substantially similar to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (7)
1. a radioactivity prospecting system, it is characterized in that, described system is made up of unmanned rotary wing aircraft and ground control terminal, and described unmanned rotary wing aircraft comprises unmanned rotary wing flying platform, and is carried on the actinometry platform of described unmanned rotary wing flying platform; Described ground control terminal, for controlling the state of flight of described unmanned rotary wing aircraft, and accepts the packet of described actinometry platform transmission;
Described actinometry platform comprises: supply module, dose rate monitoring modular, power spectrum detecting module, multi-channel analysis module, data processing module and wireless radio frequency transmission module and storage module;
Described dose rate monitoring modular at least comprises: a GM pipe, the 2nd GM pipe and locating module, a described GM pipe and/or described 2nd GM pipe, for obtaining the dose rate monitoring information in current environment, and described dose rate monitoring information is transmitted to described data processing module; The range of a described GM pipe is lower than described 2nd GM pipe; The electronics of described wireless radio frequency transmission module and the electronics of described locating module hold together and hold together with the electronics of a described GM pipe and the electronics of described 2nd GM pipe; The electronics of described data processing module and the electronics of described wireless radio frequency transmission module hold together, and hold together with the electronics of described storage module; Locating module, for obtaining current positional information, and transmits described positional information to described data processing module;
Described power spectrum detecting module, for obtaining the spectral information in current environment, and to described multi-channel analysis module transfer;
Described multi-channel analysis module, for carrying out rough handling to described spectral information, and transmits to described data processing module according to preliminary processing results;
Described data processing module, for carrying out integration packing process to described positional information, described preliminary processing results data and described dose rate monitoring information;
Described wireless radio frequency transmission module, for sending the packet obtained through integrating packing process to described ground control terminal;
Described storage module is for storing all measurement results, wherein at least comprises the dose rate information that described dose rate monitoring modular records, spectral information that described power spectrum detecting module records and the positional information that described locating module records.
2. radioactivity prospecting system according to claim 1, is characterized in that: detector selected by described power spectrum detecting module is scintillator detector or normal temperature semiconductor detector;
Multichannel analyzer integrated in described multi-channel analysis module is digital integral multichannel analyzer.
3. radioactivity prospecting system according to claim 1, is characterized in that: described wireless radio frequency transmission module, specifically for being sent to described ground control terminal by 3G network or less radio-frequency by the packet obtained through integrating packing process; Described wireless radio frequency transmission module, also for accessing or switch seamlessly to the radio frequency network of other a kind of standards except 3G network, if 3G network does not exist, is crossed and is sent to described ground control terminal by the radio frequency network accessing or switch seamlessly to.
4. radioactivity prospecting system according to claim 1, is characterized in that, the process frequency of described dose rate detecting module is more than or equal to 50MHz;
A described GM pipe and described 2nd GM pipe are the sensitive GM pipe of γ; The detection limit of a described GM pipe is less than 0.1 μ Sv/h, and the detection limit of described 2nd GM pipe is less than the detection upper limit of a described GM pipe; A described GM pipe and described 2nd GM pipe outer wall are all coated with the sheet metal for energy compensating;
The outer wall material of a described GM pipe and described 2nd GM pipe is 446 stainless steels, and the tinfoil paper that stainless steel outer wall covers 0.5mm, as the described sheet metal for energy compensating, leaves the gap of 5mm in the middle of the described sheet metal for energy compensating.
5. dose rate detector according to claim 1, is characterized in that, described dose rate detector also comprises the voltage transformation module for providing positive or negative high voltage to power;
Described dose rate detector high pressure conversion mode adopts DC-DC mode to carry out DC voltage conversion.
6. a radioactive detection methods, it is characterized in that, described method is used for a kind of radioactivity prospecting system, described system is made up of unmanned rotary wing aircraft and ground control terminal, described platform comprises unmanned rotary wing flying platform, and is carried on the actinometry platform of described unmanned rotary wing flying platform; Described ground control terminal, for controlling the state of flight of described unmanned rotary wing aircraft, and accepts the packet of described actinometry platform transmission;
Described actinometry platform comprises: supply module, dose rate monitoring modular, power spectrum detecting module, multi-channel analysis module, data processing module and wireless radio frequency transmission module and storage module;
Described dose rate monitoring modular at least comprises: a GM pipe, the 2nd GM pipe; The range of a described GM pipe is lower than described 2nd GM pipe; The electronics of described 3G transport module and the electronics of described locating module hold together and hold together with the electronics of a described GM pipe and the electronics of described 2nd GM pipe; The electronics of described data processing module and the electronics of described 3G module hold together, and hold together and hold together with the electronics of a described GM pipe and the electronics of described 2nd GM pipe with the electronics of described locating module;
Described method comprises:
When described people's rotor flying platform receives the control signal of described ground control terminal, and during according to described control signal maintenance state of flight, obtain current positional information by described locating module;
Obtain the spectral information in current environment by described power spectrum detecting module, and by described multi-channel analysis module, rough handling is carried out to described spectral information, and obtain preliminary processing results; Obtained the dose rate monitoring information in current environment by a described GM pipe and/or described 2nd GM pipe simultaneously;
By described data processing module, integration packing process is carried out to described positional information, described preliminary processing results data and described dose rate monitoring information;
By described wireless radio frequency transmission module, the packet obtained through integrating packing process is sent to described ground control terminal.
7. method according to claim 1, is characterized in that, described packet process of packing through integration obtained, to the transmission of described ground control terminal, is specially:
The packet obtained through integrating packing process is sent to described ground control terminal by 3G network;
Or, access or switch seamlessly to the radio frequency network of other a kind of standards except 3G network, and the packet obtained through integrating packing process is sent to described ground control terminal by the wireless network accessing or switch seamlessly to.
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