Portable handheld penetration imager

Abstract

The utility model provides a portable hand-held penetration imager, which comprises a shell, and a GCMOS module, a mainboard and a display screen which are arranged in the shell, the GCMOS module, the mainboard and the display screen are sequentially arranged in the shell from front to back, and the front side of the shell is provided with a lens and a light-transmitting window; a handle is arranged at the bottom of the shell, and a power supply adapter plate and a battery are arranged in the handle; the GCMOS module comprises an imaging unit and a light source unit, the imaging unit comprises a detection plate, a time sequence control plate and a reading plate which are sequentially arranged on the fixing frame from front to back, the light source unit comprises a lens group, a laser light source group and a laser light source plate which are sequentially arranged from front to back, the lens group is arranged in the connecting piece, the laser light source group is fixed in the heat conduction piece, and the laser light source plate is fixed in the connecting piece. The laser light source plate is horizontally arranged on the support frame; the connecting piece is correspondingly connected with the heat conducting piece, so that the lens group and the laser light source group are correspondingly arranged; the support frame is fixed above the imaging unit; and when the GCMOS module is arranged in the shell, the light inlet window and the lens group are correspondingly arranged, and the lens and the detection plate are correspondingly arranged.

Description

Technical Field

[0001] The utility model relates to the technical field of penetrating imaging, in particular to a portable handheld penetrating imaging instrument. Background Art

[0002] In the field of fog and smoke imaging, two approaches are generally used: image processing and optical imaging. Image processing methods are currently the most widely used. Image processing methods for fog and smoke imaging primarily include dark channel imaging, contrast enhancement, and image reconstruction. Dark channel imaging is the most widely used. It uses a large number of statistical experiments and corresponding algorithms to estimate fog and smoke thickness and restore high-quality fog and smoke-free images. This image processing approach has poor adaptability and requires extensive deep learning. Optical imaging methods include wavefront shaping, transfer matrix methods, speckle autocorrelation, synchronous scanning, single-photon fog imaging, and infrared thermal imaging.

[0003] At present, handheld infrared thermal imagers and infrared monitoring equipment are commonly used. Thermal imaging equipment cannot clearly image high-temperature radiation objects, and infrared monitoring equipment has poor suppression effect on strong backlight. For special applications such as fire fighting, high-temperature online inspections, safety inspections, etc., it is necessary to penetrate thick fog, thick smoke, high-temperature radiation, and objects with relatively low light transmittance. Existing products on the market are powerless. Although there are short-wave infrared fill lights on the market for application scenarios with poor visibility to improve the imaging clarity, there are still limitations such as large size, high power consumption, poor clarity, and few application scenarios. Utility Model Content

[0004] The embodiment of the present utility model provides a portable handheld penetrating imager, which adopts a GCMOS module to realize gated imaging; optimizes the structure, rationally arranges the GCMOS module and the battery, and rationally arranges the imaging unit and the light source unit of the GCMOS module, so that the overall structure is compact and easy to hold and carry.

[0005] The embodiment of the present invention provides a portable handheld penetrating imager, comprising a shell and a GCMOS module, a main board and a display screen arranged in the shell, wherein the GCMOS module, the main board and the display screen are arranged in sequence from front to back in the shell, and a lens and a light-transmitting window are arranged on the front side of the shell; a handle is provided at the bottom of the shell, a power adapter plate and a battery are provided in the handle, and the battery supplies power to the GCMOS module, the main board and the display screen through the power adapter plate; the GCMOS module comprises an imaging unit and a light source unit arranged above the imaging unit, and the imaging unit comprises a detection board, a timing control board and a readout board, and the detection board, the timing control board and the readout board are connected to the GCMOS module, the main board and the display screen. The plate and the readout plate are fixed in sequence from front to back on a fixing frame arranged on the front side of the detection plate, the light source unit includes a lens group, a laser light source group and a laser light source plate which are arranged in sequence from front to back, the lens group is arranged in the connecting member, the laser light source group is fixed in the heat conducting member, the laser light source plate is horizontally arranged on the supporting frame, and the laser light source group is electrically connected to the laser light source plate; the connecting member and the heat conducting member are correspondingly connected so that the lens group and the laser light source group are correspondingly arranged, and the supporting frame is fixed above the imaging unit; when the GCMOS module is arranged in the shell, the light-transmitting window is correspondingly arranged to the lens group, and the lens is correspondingly arranged to the detection plate.

[0006] Preferably, the main board is electrically connected to the readout board, the readout board is electrically connected to the detection board and the timing control board, the timing control board is electrically connected to the laser light source board, and the timing control board is electrically connected to the power adapter board; the timing control board supplies power to the readout board and the laser light source board through an internal power supply line; the timing control board exchanges data with the readout board through an internal communication line, sends a trigger signal to the readout board through an internal signal line, and sends a trigger signal to the laser light source board; the readout board exchanges data with the host computer through the main board, the readout board sends an exposure signal to the timing control board through an internal signal line, supplies power to the detection board and the main board through an internal power supply line, and reads image data from the detection board through an internal signal line.

[0007] Preferably, the shell includes a lower shell, an upper cover, a front panel and a rear frame, a connecting frame is provided on the rear side of the readout board, a main control fixing frame is provided in the lower shell, the GCMOS module is fixed to the front side of the main control fixing frame through the connecting frame, and the main board is provided on the rear side of the main control fixing frame.

[0008] Preferably, a accommodating cavity is provided on the top of the front panel. When the GCMOS module is arranged in the shell, the heat conductor and the laser light source group fixed therein are located in the accommodating cavity, and the lens is arranged on the front panel and located below the accommodating cavity.

[0009] Preferably, a heat dissipation grille is provided on the top of the accommodating cavity, and the laser light source group is arranged corresponding to the heat dissipation grille. The laser light source group includes a plurality of laser light sources arranged in a row, and the heads of the laser light sources are embedded in the connecting piece. The lens group is fixed to the connecting piece through a pressure plate. The lens group includes a plurality of lenses, and the number of the lenses is consistent with the number of the laser light sources. The lenses are arranged in a one-to-one correspondence with the laser light sources.

[0010] Preferably, the light-transmitting window is located on the front side of the accommodating cavity, and the light-transmitting window includes a rectangular light window and a circular light window. The rectangular light window is arranged corresponding to the laser light source group, and the circular light window is arranged corresponding to one of the laser light sources in the laser light source group.

[0011] Preferably, a filter is provided between the lens and the detection plate, and the filter is fixed on the front panel.

[0012] Preferably, the display screen is fixedly connected to the main board via a screen fixing frame, the display screen is arranged in the rear frame, and the screen fixing frame is arranged on the rear side of the main board.

[0013] Preferably, a fixing seat is provided at the bottom of the imaging unit, the GCMOS module is fixed in the housing via the fixing seat, and a protective frame is provided above the laser light source board.

[0014] Preferably, a power switch is provided at the bottom of the lower shell, a control button is provided on the side of the handle, the control button is fixed to the handle through a nut, a locking bottom cover is provided at the bottom of the handle, and the battery is fixed in the handle through the locking bottom cover.

[0015] Compared with the prior art, the technical solution of the embodiment of the present utility model has beneficial effects.

[0016] For example, the portable handheld penetrating imager provided by the present invention adopts a GCMOS module. The GCMOS module includes an imaging unit and a light source unit arranged above the imaging unit. The imaging unit includes a detection board, a timing control board and a readout board. The light source unit includes a lens group, a laser light source group and a laser light source board. The detection board and the laser light source board are controlled by the timing control board to realize gated imaging; the GCMOS module is set in the shell, the lens is set on the front side of the shell, and the battery is set in the handle, and the lens, GCMOS module and battery are reasonably deployed; the light source unit is set above the imaging unit, and the imaging unit and the light source unit of the GCMOS module are reasonably deployed, so that the overall structure is compact and easy to hold and carry.

[0017] For another example, a receiving cavity is provided on the top of the front panel, and the heat conducting member and the laser light source group fixed therein are located in the receiving cavity and above the lens, without occupying space in the shell, thereby further reducing the volume.

[0018] For another example, a heat dissipation grid is provided on the top of the accommodating cavity, and the laser light source group is arranged corresponding to the heat dissipation grid, which is beneficial to the heat dissipation of the laser light source group and prolongs the service life; the laser light source group includes multiple laser light sources arranged in a row, which makes up for the insufficient intensity of a single laser light source, and at the same time increases the divergence angle of the laser light source group and increases the light source coverage area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the disassembly of the portable handheld penetrating imaging device of the present invention;

[0020] Figure 2 This is a schematic diagram of the disassembly of the GCMOS module of the present invention;

[0021] Figure 3 This is a control principle diagram of the portable handheld penetrating imager of the present utility model.

[0022] Description of reference numerals:

[0023] 1-Rectangular light window; 2-Circular light window; 3-Front panel; 4-GCMOS module; 5-Upper cover; 6-Master controller bracket; 7-Main board; 8-Screen bracket; 9-Display screen; 10-Rear frame; 11-Control buttons; 12-Nut; 13-Handle; 14-Battery; 15-Locking bottom cover; 16-Power switch; 17-Power adapter board; 18-Lower housing; 19-Filter; 20-Lens;

[0024] 401-pressing plate; 402-lens group; 403-connecting piece; 404-heat conducting piece; 405-protective frame; 406-laser light source board; 407-support frame; 408-connecting frame; 409-readout board; 410-timing control board; 411-fixing seat; 412-detection board; 413-fixing frame; 414-laser light source group. DETAILED DESCRIPTION

[0025] To make the objectives, features, and beneficial effects of the present invention more clearly understood, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described below are merely for the purpose of explaining the present invention and are not intended to limit the present invention. Furthermore, the drawings may use the same or similar reference numerals to refer to the same or similar elements in different embodiments, and the description of the same or similar elements in different embodiments, as well as the description of prior art elements, features, and effects, may be omitted.

[0026] Reference Figures 1 to 3 , an embodiment of the utility model provides a portable handheld penetrating imager.

[0027] Specifically, the portable handheld penetrating imager provided by the embodiment of the present invention includes a shell and a GCMOS module 4, a main board 7 and a display screen 9 arranged in the shell. The GCMOS module 4, the main board 7 and the display screen 9 are arranged in sequence from front to back in the shell, and a lens 20 and a light-transmitting window are provided on the front side of the shell; a handle 13 is provided at the bottom of the shell, and a power adapter board 17 and a battery 14 are provided in the handle 13. The battery 14 supplies power to the GCMOS module 4, the main board 7 and the display screen 9 through the power adapter board 17; the GCMOS module 4 includes an imaging unit and a light source unit arranged above the imaging unit, the imaging unit includes a detection board 412, a timing control board 410 and a readout board 409, the detection board 412, the timing control board 410 and the readout board 409 09 is fixed in sequence from front to back on a fixing frame 413 arranged on the front side of the detection plate 412, and the light source unit includes a lens group 402, a laser light source group 414 and a laser light source board 406 which are arranged in sequence from front to back, the lens group 402 is arranged in the connecting member 403, the laser light source group 424 is fixed in the heat conducting member 404, the laser light source board 406 is horizontally arranged on the supporting frame 407, and the laser light source group 414 is electrically connected to the laser light source board 406; the connecting member 403 and the heat conducting member 404 are correspondingly connected so that the lens group 402 and the laser light source group 414 are correspondingly arranged, and the supporting frame 407 is fixed above the imaging unit; when the GCMOS module 4 is arranged in the shell, the light-transmitting window is arranged corresponding to the lens group 402, and the lens 20 is arranged corresponding to the detection board 412.

[0028] In some embodiments, the main board 7 is electrically connected to the readout board 409, the readout board 409 is electrically connected to the detection board 412 and the timing control board 410, the timing control board 410 is electrically connected to the laser light source board 406, and the timing control board 410 is electrically connected to the power adapter board 17; the timing control board 410 supplies power to the readout board 409 and the laser light source board 406 through an internal power supply line; the timing control board 410 exchanges data with the readout board 409 through an internal communication line, sends a trigger signal to the readout board 409 through an internal signal line, and sends a trigger signal to the laser light source board 406; the readout board 409 exchanges data with the host computer through the main board 7, the readout board 409 sends an exposure signal to the timing control board 410 through an internal signal line, supplies power to the detection board 412 and the main board 7 through an internal power supply line, and reads image data from the detection board 412 through an internal signal line.

[0029] In some embodiments, the electrical part is provided with a power supply interface and a USB3.0 interface with the outside; when working, the host computer sends a start instruction to the timing control board 410 via the USB3.0 interface via the main board 7 and the readout board 409. After receiving the instruction, the timing control board 410 sends a specific pulse to the readout board 409, triggering the readout board 409 to expose the detection board 412. The exposure signal simultaneously triggers the timing control board 410 to output a synchronous pulse, which is output to the laser light source board 406 for emitting a pulsed laser. By adjusting the relative delay of the laser and the exposure signal, the detection board 412 will receive the light signal reflected from the target at different distances. The readout board 409 can read the image data generated by the detection board 412 and transmit it back to the host computer for processing through the main board 7 via the USB3.0 interface.

[0030] The portable handheld penetrating imager provided by the embodiment of the present invention uses laser gating gated imaging. The gated gating imaging is based on the active illumination of the laser light source group 414. The core of the imaging is that the pulsed laser of the laser light source group 414 and the gating camera are synchronized in time through the control system.

[0031] In some embodiments, the shell includes a lower shell 18, an upper cover 5, a front panel 3 and a rear frame 10, a connecting frame 408 is provided on the rear side of the readout board 409, a main control fixing frame 6 is provided in the lower shell 18, the GCMOS module 4 is fixed to the front side of the main control fixing frame 6 through the connecting frame 408, and the main board 7 is provided on the rear side of the main control fixing frame 6.

[0032] In some embodiments, a accommodating cavity is provided on the top of the front panel 3. When the GCMOS module 4 is provided in the shell, the heat conductor 404 and the laser light source group 414 fixed therein are located in the accommodating cavity, and the lens 20 is provided on the front panel 3 and located below the accommodating cavity.

[0033] In some embodiments, a heat dissipation grid is provided on the top of the accommodating cavity, and the laser light source group 414 is provided corresponding to the heat dissipation grid, which is beneficial to the heat dissipation of the laser light source group 414 and prolongs the service life; the laser light source group 414 includes a plurality of laser light sources arranged in a row to make up for the insufficient intensity of a single laser light source. Compared with the commonly used laser light sources on the market, the divergence angle is usually between 1 milliradian and 10 milliradians (mrad). The divergence angle of the laser light source group 414 is 5°-7°, which increases the coverage area of ​​the light source; the head of the laser light source is embedded in the connecting member 403, and the lens group 402 is fixed to the connecting member 403 by the pressure plate 401. The lens group 402 includes a plurality of lenses, the number of lenses is consistent with the number of laser light sources, and the lenses and laser light sources are provided in a one-to-one correspondence.

[0034] In some embodiments, the light-transmitting window is located on the front side of the accommodating cavity, and the light-transmitting window includes a rectangular light window 1 and a circular light window 2. The rectangular light window 1 is set corresponding to the laser light source group 414, and the circular light window 2 is set corresponding to a laser light source in the laser light source group 414.

[0035] In some embodiments, a filter 19 is provided between the lens 20 and the detection board 412 , and the filter 19 is fixed on the front panel 3 to facilitate assembly and replacement of the lens 20 and the filter 19 .

[0036] In some embodiments, the display screen 9 is fixedly connected to the main board 7 via a screen fixing frame 8 . The display screen 9 is disposed in the rear frame 10 , and the screen fixing frame 8 is disposed on the rear side of the main board 7 .

[0037] In some embodiments, a fixing seat 411 is provided at the bottom of the imaging unit, and the GCMOS module 4 is fixed in the shell through the fixing seat 411, which is conducive to the reliable fixation of the GCMOS module 4. A protective frame 405 is provided above the laser light source board 406, which protects the laser light source board 406 and is conducive to the fixation of the upper cover 5.

[0038] In some embodiments, a power switch 16 is provided at the bottom of the lower shell 18, a control button 11 is provided on the side of the handle 13, the control button 11 is fixed to the handle 13 by a nut 12, a locking bottom cover 15 is provided at the bottom of the handle 13, and the battery 14 is fixed in the handle 13 through the locking bottom cover 15.

[0039] The portable handheld penetrating imager provided by the embodiment of the present invention has a strong backlight suppression function. Different filters 19 can be selected according to the characteristics of the laser light source group 414, and then the corresponding lenses 20 can be matched. The corresponding parameters such as distance, delay, light intensity, pulse width, frame rate, exposure level, contrast, spot position, etc. are set by controlling the main board 7 to achieve the effect of suppressing strong backlight; the wavelength range of the laser includes visible light, infrared light and ultraviolet light. When the laser light source group 414 uses near-infrared, the filter 19 uses a narrow-band filter corresponding to the center wavelength of the laser, so that the light of the laser light source group 414 can pass through the filter 19 and filter out the rest of the band light. For example, the laser light source group 414 emits a 905nm band light source, which is reflected back by irradiating an object, suppressing the light source except the 905±10nm band light source.

[0040] The portable handheld penetrating imager provided in the embodiment of the utility model realizes penetrating imaging of glass curtain walls, car windows, and dark-colored vehicle films through its advanced laser gating and gated imaging technology. Its strong light suppression function can be used for online inspection of targets in high-temperature radiation environments. It is widely used in anti-terrorism reconnaissance, industrial manufacturing, criminal investigation and security, safety inspection, traffic supervision and other fields.

[0041] In summary, the portable handheld penetrating imager provided by the present invention adopts a GCMOS module 4, which includes an imaging unit and a light source unit arranged above the imaging unit. The imaging unit includes a detection board 412, a timing control board 410 and a readout board 409. The light source unit includes a lens group 402, a laser light source group 414 and a laser light source board 406. The detection board 412 and the laser light source board 406 are controlled by the timing control board 410 to realize gated imaging; the GCMOS module 4 is set in the shell, the lens 20 is set on the front side of the shell, the battery 14 is set in the handle 13, and the lens 20, GCMOS module 4 and battery 14 are reasonably deployed; the light source unit is set above the imaging unit, and the imaging unit and the light source unit of the GCMOS module 4 are reasonably deployed, so that the overall structure is compact and easy to hold and carry.

[0042] Furthermore, the present invention sets a receiving cavity on the top of the front panel 3, and the heat conducting member 404 and the laser light source group 414 fixed therein are located in the receiving cavity and above the lens 20, without occupying the space in the shell, thereby further reducing the volume.

[0043] Furthermore, the utility model is provided with a heat dissipation grid on the top of the accommodating cavity, and the laser light source group 414 is arranged corresponding to the heat dissipation grid, which is beneficial to the heat dissipation of the laser light source group 414 and extends the service life; the laser light source group 414 includes multiple laser light sources arranged in a row, which makes up for the insufficient intensity of a single laser light source, and at the same time increases the divergence angle of the laser light source group and increases the light source coverage area.

[0044] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present disclosure are intended to be illustrative, not restrictive, unless otherwise stated. In specific implementations, the technical features of one or more dependent claims may be combined with the technical features of the independent claim, based on actual needs and where technically feasible, and may be derived from the technical features of the corresponding independent claim in any appropriate manner rather than solely through the specific combinations listed in the claims.

[0045] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims.

Claims

1. A portable handheld penetrating imager, characterized in that: The invention comprises a shell and a GCMOS module, a main board and a display screen arranged in the shell, wherein the GCMOS module, the main board and the display screen are arranged in the shell from front to back in sequence, and a lens and a light-transmitting window are arranged on the front side of the shell; a handle is arranged on the bottom of the shell, a power adapter board and a battery are arranged in the handle, and the battery supplies power to the GCMOS module, the main board and the display screen through the power adapter board; the GCMOS module comprises an imaging unit and a light source unit arranged above the imaging unit, and the imaging unit comprises a detection board, a timing control board and a readout board, and the detection board, the timing control board and the readout board are arranged from the front to the back. The light source unit comprises a lens group, a laser light source group and a laser light source board which are arranged in sequence from front to back, the lens group is arranged in the connecting piece, the laser light source group is fixed in the heat conducting piece, the laser light source board is horizontally arranged on the supporting frame, and the laser light source group is electrically connected to the laser light source board; the connecting piece and the heat conducting piece are correspondingly connected so that the lens group and the laser light source group are arranged correspondingly, and the supporting frame is fixed above the imaging unit; when the GCMOS module is arranged in the shell, the light-transmitting window and the lens group are arranged correspondingly, and the lens and the detection board are arranged correspondingly.

2. The portable handheld penetrating imager according to claim 1, characterized in that: The main board is electrically connected to the readout board, the readout board is electrically connected to the detection board and the timing control board, the timing control board is electrically connected to the laser light source board, and the timing control board is electrically connected to the power adapter board; the timing control board supplies power to the readout board and the laser light source board through an internal power supply line; the timing control board exchanges data with the readout board through an internal communication line, sends a trigger signal to the readout board through an internal signal line, and sends a trigger signal to the laser light source board; the readout board exchanges data with a host computer through the main board, the readout board sends an exposure signal to the timing control board through an internal signal line, supplies power to the detection board and the main board through an internal power supply line, and reads image data from the detection board through an internal signal line.

3. The portable handheld penetrating imager according to claim 1, characterized in that: The shell includes a lower shell, an upper cover, a front panel and a rear frame. A connecting frame is arranged on the rear side of the readout board. A main control fixing frame is arranged in the lower shell. The GCMOS module is fixed to the front side of the main control fixing frame through the connecting frame. The mainboard is arranged on the rear side of the main control fixing frame.

4. The portable handheld penetrating imager according to claim 3, characterized in that: A accommodating cavity is provided on the top of the front panel, and a heat dissipation grid is provided on the top of the accommodating cavity. When the GCMOS module is arranged in the shell, the heat conducting member and the laser light source group fixed therein are located in the accommodating cavity, and the lens is arranged on the front panel and located below the accommodating cavity.

5. The portable handheld penetrating imager according to claim 4, characterized in that: A heat dissipation grid is arranged on the top of the accommodating cavity, and the laser light source group is arranged corresponding to the heat dissipation grid. The laser light source group includes a plurality of laser light sources arranged in a row, and the heads of the laser light sources are embedded in the connecting piece. The lens group is fixed to the connecting piece through a pressing plate, and the lens group includes a plurality of lenses. The number of the lenses is consistent with the number of the laser light sources, and the lenses are arranged in a one-to-one correspondence with the laser light sources.

6. The portable handheld penetrating imager according to claim 5, characterized in that: The light-transmitting window is located at the front side of the accommodating cavity, and the light-transmitting window includes a rectangular light window and a circular light window. The rectangular light window is arranged corresponding to the laser light source group, and the circular light window is arranged corresponding to one of the laser light sources in the laser light source group.

7. The portable handheld penetrating imager according to claim 3, characterized in that: A filter is arranged between the lens and the detection plate, and the filter is fixed on the front plate.

8. The portable handheld penetrating imager according to claim 3, characterized in that: The display screen is fixedly connected to the main board via a screen fixing frame, the display screen is arranged in the rear frame, and the screen fixing frame is arranged on the rear side of the main board.

9. The portable handheld penetrating imager according to claim 1, characterized in that: A fixing seat is arranged at the bottom of the imaging unit, the GCMOS module is fixed in the housing through the fixing seat, and a protection frame is arranged above the laser light source board.

10. The portable handheld penetrating imager according to claim 3, characterized in that: A power switch is arranged at the bottom of the lower shell, a control button is arranged on the side of the handle, the control button is fixed to the handle through a nut, a locking bottom cover is arranged at the bottom of the handle, and the battery is fixed in the handle through the locking bottom cover.

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