CN217237747U - Small explosive fusion detection device - Google Patents
Small explosive fusion detection device Download PDFInfo
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- CN217237747U CN217237747U CN202220998086.1U CN202220998086U CN217237747U CN 217237747 U CN217237747 U CN 217237747U CN 202220998086 U CN202220998086 U CN 202220998086U CN 217237747 U CN217237747 U CN 217237747U
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Abstract
The application provides a small explosive fusion detection device, which comprises a laser Raman spectrometer, a video imaging system and a radiation-free source detection system, wherein the laser Raman spectrometer, the video imaging system and the radiation-free source detection system are arranged on a robot platform; the laser Raman spectrometer is used for emitting Raman laser to explosives to generate Raman spectrum signals of the explosives; the video imaging system is used for imaging explosives to generate video signals of the explosives; the radioactive source-free detection system is used for detecting trace explosives in the air of an explosive site to generate trace explosive detection signals; and the robot platform is used for carrying out information fusion and judgment according to the Raman spectrum signal, the video signal and the trace explosive detection signal so as to realize the detection of the explosives. The explosive searching and removing device can realize high-reliability detection and identification of multi-component and multi-class explosives, can improve the detection capability and detection efficiency of trace explosives, and guarantees the safety of explosive searching and removing personnel and equipment.
Description
Technical Field
The application relates to the technical field of explosive detection, in particular to a small explosive fusion detection device.
Background
Among the many public safety events, explosive events have tremendous lethality, devastation, and ill-behaved impact, radiation. Therefore, effective prevention and efficient disposal of explosives are important for maintaining national security and social stability.
The continuous change of explosive criminal means seriously threatens the life and property safety of people and also threatens the life safety of explosive searching and removing personnel. The existing explosive detection method needs manual sampling, mainly depends on that the handheld equipment of the fighter approaches suspicious dangerous goods or explosives to execute a detection and identification task, and has low efficiency, and the detection result is greatly influenced by the sampling process, so that the requirement of rapid security inspection of the personnel and the articles in a large scene is difficult to meet. Therefore, there is a need to address non-invasive, non-contact, remote, trace, miniaturized detection techniques.
Common explosive detection methods mainly include: animal method, electrochemical method, ion method (ion mobility spectrometry, mass spectrometry), X-ray method, neutron method, nuclear magnetic method (electromagnetic method, nuclear magnetic resonance method, nuclear quadrupole resonance method), terahertz method, and spectroscopy (infrared spectroscopy, raman spectroscopy, laser-induced breakdown spectroscopy, and photoacoustic spectroscopy).
Among the above methods, the electrochemical method, the ionic method (ion mobility spectrometry, mass spectrometry), the X-ray method, the neutron method, the nuclear magnetic method (electromagnetic method, nuclear magnetic resonance method, nuclear quadrupole resonance method), and the terahertz method cannot realize remote safe detection when the detection distance is short, the spectroscopy can realize remote detection, and the detection sensitivity and the large-field detection efficiency are further improved.
Disclosure of Invention
In view of this, the main objective of the present application is to provide a small-sized explosive fusion detection apparatus, which can realize highly reliable detection and identification of multi-component and multi-class explosives, can improve the detection capability and detection efficiency of trace explosives, and ensure the safety of explosive searching and removing personnel and equipment.
In order to achieve the purpose, the application provides a small explosive fusion detection device which comprises a laser Raman spectrometer, a video imaging system and a radiation-free source detection system, wherein the laser Raman spectrometer, the video imaging system and the radiation-free source detection system are arranged on a robot platform;
the laser Raman spectrometer comprises a Raman spectrum sampling head, a dichroic beam splitter, a converging collimating mirror, a small hole and a remote imaging mirror group which are sequentially arranged along an output light path, wherein Raman laser output by the Raman spectrum sampling head penetrates through the dichroic beam splitter, is converged at the small hole by the converging collimating mirror, penetrates through the small hole to be emitted to explosives, Raman scattering light generated by the scattering of the explosives is converged at the small hole by the remote imaging mirror group, and is collimated into parallel laser by the converging collimating mirror and then is emitted to the Raman spectrum sampling head through the dichroic beam splitter to generate Raman spectrum signals;
the video imaging system comprises an imaging camera arranged on a reflection light path of the dichroic beam splitter, the remote imaging lens group focuses imaging light of explosives at a small hole, and the imaging light passing through the small hole is collimated into parallel light by a converging collimator lens and then reflected to the imaging camera by the dichroic beam splitter to generate a video signal;
the radioactive source-free detection system comprises a trace sampling air inlet pipe, a radioactive source-free detector and a sampling air pump, field air is pumped into the trace sampling air inlet pipe through the sampling air pump and is conveyed to the radioactive source-free detector to detect trace explosives, and a trace explosive detection signal is generated;
and the robot platform is used for carrying out information fusion and judgment according to the Raman spectrum signal, the video signal and the trace explosive detection signal, so as to realize the detection of explosives.
By the above, the laser Raman spectrometer, the video imaging system and the radiation-free source detection system are arranged on the robot platform, the maneuverability of the robot platform is utilized, the direction of a remote explosive is judged according to a video signal, the substance of the explosive is detected through the Raman spectrum technology, the sampling detection of trace explosive residue is realized through the radiation-free source detection technology of the trace explosive, the operation radius and the detection distance are greatly enlarged, meanwhile, the high-reliability detection and identification of multi-component and multi-class explosives are realized, the trace explosive finding capability and efficiency are effectively improved, and the safety of explosive searching and removing personnel and equipment is guaranteed.
Optionally, the radiation source-free detection system further includes a first filter disposed between the trace sampling gas inlet pipe and the radiation source-free detector, and configured to filter the sampled gas.
By last, through set up the filter between trace sampling intake pipe, no radiation source detector, can carry out coarse filtration to debris such as insect, cotton fibre in the sampling gas, guarantee the accuracy that gaseous detected.
Optionally, the radiation source-free detection system further comprises a second filter arranged between the gas outlet of the radiation source-free detector and the sampling gas pump, and the second filter is used for filtering the detected sampling gas and then discharging the filtered sampling gas to the outside.
By last, through set up the filter between the gas outlet of no radiation source detector and sampling air pump, further filter the sampling gas after detecting, then outside discharge avoids the contaminated air.
Optionally, the robot platform includes a microprocessor, and is configured to perform information fusion and calculation on the received raman spectrum signal, video signal, and trace explosive detection signal.
Therefore, the microprocessor, such as a CPU, an MCU and the like, is arranged in the robot platform, and information fusion and calculation are carried out on the received Raman spectrum signal, the received video signal and the trace explosive detection signal, so that detection of the orientation, the component, the residue and the like of the explosive is realized.
Optionally, the robot platform includes a moving device disposed at the bottom for controlling movement of the robot platform.
By the above, the moving device is arranged at the bottom of the robot platform, and the moving device is controlled to control the movement of the robot platform, such as the movement towards the direction of explosive to further measure or the movement away from the direction, so that the working radius and the detection range are greatly enlarged.
Optionally, the dichroic beam splitter forms an included angle of 45 ° with a light inlet of the imaging camera, and is configured to vertically reflect the parallel light collimated by the converging collimator to the imaging camera.
By the above, the dichroic beam splitter can split the light beam into the transmitted light and the reflected light according to the wavelength, wherein the raman spectrum sampling head emits raman laser light which can penetrate through the dichroic beam splitter, and the collected explosive imaging light can be vertically reflected into the imaging camera for video imaging.
Optionally, the remote imaging lens group has focal length adjustment and focusing adjustment functions, and clearly images a target image to be imaged to a focal plane of the remote imaging lens group, where the focal plane coincides with the plane of the small hole.
Therefore, the focal plane of the remote imaging lens group is superposed with the plane of the small hole, and the imaging information can be ensured to be transmitted to the convergence collimating lens through the small hole by carrying out focal length adjustment and focusing adjustment on the remote imaging lens group.
These and other aspects of the present application will be more readily apparent in the following description of the embodiment(s).
Drawings
Fig. 1 is a schematic structural diagram of a small explosive fusion detection device according to an embodiment of the present application.
Description of the symbols
The system comprises a Raman spectrum sampling head 1, an imaging camera 2, a dichroic beam splitter 3, a converging collimator 4, a small hole 5, a remote imaging lens group 6, explosives 7, a trace sampling air inlet pipe 8, a first filter 9, a radiation-free source detector 10, a radiation-free source detector 11, a second filter 12, a sampling air pump 13 and a robot platform 14.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1, the embodiment of the application provides a small explosive fusion detection device, which can realize highly reliable detection and identification of multi-component and multi-class explosives by fusing a raman spectrum analysis technology, a video imaging technology and a trace explosive detection technology, improve the detection capability and detection efficiency of trace explosives, and ensure the safety of explosive searching and removing personnel and equipment. This small-size explosive fuses detection device is including setting up the laser raman spectrometer on the robot platform, video imaging system and no radiation source detection system, wherein laser raman spectrometer is through launching raman laser to the explosive, and gather the raman scattering light that produces through the explosive scattering, realize the raman spectroscopy analysis to the explosive, video imaging system is through carrying out long distance video imaging to the explosive, can judge information such as the position of explosive, distance and size, no radiation source detection system is through sampling the detection to the on-the-spot gas of explosive, can realize the residual detection to the trace explosive.
Specifically, as shown in fig. 1, the laser raman spectrometer of this embodiment includes a raman spectrum sampling head 1, a dichroic beam splitter 3, a converging collimator 4, a small hole 5, and a remote imaging lens group 6, which are sequentially disposed along an output light path, where the raman spectrum sampling head 1 is configured to output raman laser and collect raman signals, the output raman laser passes through the dichroic beam splitter 3, is converged at the small hole 5 by the converging collimator 4, passes through the small hole 5 to be emitted to an explosive 7, raman scattering light generated by scattering of the explosive 7 is converged at the small hole 5 by the remote imaging lens group 6, and the raman scattering light passing through the small hole 5 is collimated into parallel laser by the converging collimator 4, and then is emitted to the raman spectrum sampling head 1 through the dichroic beam splitter 3 to generate raman spectrum signals;
the video imaging system of this embodiment includes an imaging camera 2 disposed on the reflection light path of the dichroic beam splitter 3, the imaging camera 2 shares an optical axis with the dichroic beam splitter 3, the converging collimator 4, the pinhole 5, and the remote imaging lens set 6, wherein the remote imaging lens set 6 has focal length adjustment and focusing adjustment functions, and the focal plane of the remote imaging lens set 6 coincides with the plane of the pinhole, and has a plurality of lenses, by adjusting the distances of the plurality of lenses, the adjustment of the focal length and the focal distance of the lens can be realized, and it can be ensured that the imaging light is focused on the pinhole 5 exactly, and the imaging light passing through the pinhole 5 is collimated into parallel light by the converging collimator 4, and then reflected to the imaging camera 2 by the dichroic beam splitter 3 to generate a video signal;
the radioactive source-free detection system comprises a trace sampling air inlet pipe 8, a first filter 9, a radioactive source-free detector 10, a second filter 12 and a sampling air pump 13, wherein ambient air of explosives is sampled by the sampling air pump 13, sampling gas passes through the trace sampling air inlet pipe 8, is filtered by the first filter 9 and then is conveyed to the radioactive source-free detector 10 for detecting the trace explosives, a trace explosive detection signal is generated, and the detected gas is conveyed to the second filter 12 through an air outlet 11 of the radioactive source-free detector for filtering and then is discharged outwards by the sampling air pump 13 at the tail end;
in this embodiment, the computing terminal inside the robot platform 14 performs information fusion and judgment according to the raman spectrum signal, the video signal, and the trace explosive detection signal, so as to detect explosives. The computing terminal can be specifically realized by a microprocessor, such as a CPU, an MCU and the like, performs information fusion and computation on the received Raman spectrum signal, the video signal and the trace explosive detection signal, and realizes detection of the orientation, the composition, the residue and the like of the explosive.
In some embodiments, the bottom of the robotic platform 14 is provided with movement devices, such as wheels, which are controlled to control the movement of the robotic platform 14, such as toward the explosive for further measurement, or away from the direction, greatly expanding the working radius and detection range.
To sum up, the small-size explosive that this application embodiment provided fuses detection device, through set up laser raman spectrometer, video imaging system and no radiation source detection system on the robot platform, utilize the mobility of robot platform, carry out the position judgement to remote explosive according to video signal, and survey the material of explosive through raman spectroscopy technique, and utilize the no radiation source detection technique of trace explosive to realize the remaining sampling detection of trace explosive, very big expansion operation radius and detection distance, realize simultaneously that the high reliability to multicomponent, many kinds of explosive surveys and discernment, effectively improve explosive trace discovery ability and efficiency, the guarantee is searched for and is exploded personnel and equip safety.
It should be noted that the embodiments described in this application are only a part of the embodiments of the present application, and not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the above detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second, third and the like in the description and in the claims, or the terms module 101, module 102, module 103 and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, it being understood that specific orders or sequences may be interchanged where permissible to effect embodiments of the application described herein in other than the order illustrated or described herein.
In the above description, reference numbers indicating steps do not necessarily indicate that the steps are performed according to the steps, and may include intermediate steps or be replaced by other steps, and the order of the steps may be interchanged before and after the steps, or performed simultaneously, where the case allows.
The term "comprising" as used in the specification and claims should not be construed as being limited to the contents listed thereafter; it does not exclude other elements or steps. It is thus to be interpreted as specifying the presence of the stated features, integers, steps or components as referred to, but does not preclude the presence or addition of one or more other features, integers, steps or components, or groups thereof. Thus, the expression "an apparatus comprising the devices a and B" should not be limited to an apparatus consisting of only the components a and B.
Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment, but may. Furthermore, in the various embodiments of the present application, unless otherwise specified or logically conflicting, terms and/or descriptions between different embodiments have consistency and may be mutually referenced, and technical features in different embodiments may be combined to form new embodiments according to their inherent logical relationships.
It should be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, which all fall within the scope of the present application.
Claims (7)
1. A small explosive fusion detection device is characterized by comprising a laser Raman spectrometer, a video imaging system and a radiation source-free detection system, wherein the laser Raman spectrometer, the video imaging system and the radiation source-free detection system are arranged on a robot platform;
the laser Raman spectrometer comprises a Raman spectrum sampling head, a dichroic beam splitter, a converging collimating mirror, a small hole and a remote imaging mirror group which are sequentially arranged along an output light path, wherein Raman laser output by the Raman spectrum sampling head penetrates through the dichroic beam splitter, is converged at the small hole by the converging collimating mirror, penetrates through the small hole to be emitted to explosives, Raman scattering light generated by the scattering of the explosives is converged at the small hole by the remote imaging mirror group, and is collimated into parallel laser by the converging collimating mirror and then is emitted to the Raman spectrum sampling head through the dichroic beam splitter to generate Raman spectrum signals;
the video imaging system comprises an imaging camera arranged on a reflection light path of the dichroic beam splitter, the remote imaging lens group focuses imaging light of explosives at a small hole, and the imaging light passing through the small hole is collimated into parallel light by a converging collimator lens and then reflected to the imaging camera by the dichroic beam splitter to generate a video signal;
the radioactive source-free detection system comprises a trace sampling air inlet pipe, a radioactive source-free detector and a sampling air pump, field air is pumped into the trace sampling air inlet pipe through the sampling air pump and is conveyed to the radioactive source-free detector to detect trace explosives, and a trace explosive detection signal is generated;
and the robot platform is used for carrying out information fusion and judgment according to the Raman spectrum signal, the video signal and the trace explosive detection signal, so as to realize the detection of explosives.
2. The apparatus of claim 1, wherein the radiation free source detection system further comprises a first filter disposed between the trace sampling gas inlet tube and the radiation free source detector for filtering the sampled gas.
3. The apparatus of claim 1, wherein the radioactive source free detector system further comprises a second filter disposed between the gas outlet of the radioactive source free detector and the sampling gas pump, for filtering the detected sampling gas and discharging the filtered sampling gas to the outside.
4. The apparatus of claim 1, wherein the robotic platform comprises a microprocessor for performing information fusion and computation on the received raman spectral signals, video signals, and trace explosive detection signals.
5. The apparatus of claim 1, wherein the robotic platform comprises a moving means disposed at the bottom for controlling movement of the robotic platform.
6. The apparatus of claim 1, wherein the dichroic beamsplitter is at a 45 ° angle to the light entrance of the imaging camera for reflecting parallel light collimated by the converging collimator perpendicularly to the imaging camera.
7. The apparatus according to claim 1, wherein said teleimaging lens assembly is capable of focus adjustment and focusing to sharply image the target image to be imaged to a focal plane of the teleimaging lens assembly, which focal plane coincides with the plane of said aperture.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115753730A (en) * | 2022-11-17 | 2023-03-07 | 成都理工大学 | Trace explosive detection device under multi-environment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115753730A (en) * | 2022-11-17 | 2023-03-07 | 成都理工大学 | Trace explosive detection device under multi-environment |
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