CN102288955A - Debugging system and method for fiber coupling in laser-radar optical receiving system - Google Patents
Debugging system and method for fiber coupling in laser-radar optical receiving system Download PDFInfo
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- CN102288955A CN102288955A CN2011102379004A CN201110237900A CN102288955A CN 102288955 A CN102288955 A CN 102288955A CN 2011102379004 A CN2011102379004 A CN 2011102379004A CN 201110237900 A CN201110237900 A CN 201110237900A CN 102288955 A CN102288955 A CN 102288955A
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Abstract
The invention discloses a debugging system for the fiber coupling in a laser-radar optical receiving system. The debugging system comprises a three-dimensional adjusting frame, a special optical cable, an array CCD (Charge Coupled Device) and a control device, wherein the special optical cable is composed of an imaging optical cable and a transmission optical fiber; a first end face of the special optical cable is fixed by the three-dimensional adjusting frame; the three-dimensional adjusting frame is also connected with the control device; a second end face of the special optical cable is connected with the array CCD; the second end face of the transmission optical fiber is connected with the control device; and an image output end of the array CCD is connected with the control device. The invention also provides a debugging method which adopts the debugging system. As the control device drives the three-dimensional adjusting frame to realize position adjustment, the fiber coupling in the laser-radar optical receiving system can be debugged automatically, so that debugging difficulty can be reduced, and debugging time can be shortened.
Description
Technical field
The present invention relates to detecting technique, relate in particular to the debug system and the method for optical fiber coupling in a kind of laser radar optical receiving system.
Background technology
In laser radar system, adopt Transmission Fibers to transmit light signal between telescope in the optical receiving system and the receiver.Concrete, the light signal that telescope is collected is coupled in the Transmission Fibers, and light signal continues to propagate through the light path that Transmission Fibers enters into receiver.In order to obtain best coupling effect, desirable situation is, the light signal of telescope output all vertically enters the Transmission Fibers end face, and this just needs to adjust the relative position of Transmission Fibers end face and telescope focus.
Traditional coupling adjustment method is at present: in telescopical focal position a mechanical type three-dimensional trim holder is installed, the Transmission Fibers end face is fixed by this mechanical type three-dimensional trim holder.Adjust the position of fiber end face by the knob of manual adjustments adjustment rack, whether be positioned at telescopical focal position by the artificial judgment fiber end face, and be provided with vertical with light signal.But there is following shortcoming at least in this debud mode:
Manually the difficulty of debugging is big, length consuming time.
Summary of the invention
The debug system and the method that the purpose of this invention is to provide optical fiber coupling in a kind of laser radar optical receiving system.
The objective of the invention is to be achieved through the following technical solutions:
The debug system of optical fiber coupling in a kind of laser radar optical receiving system comprises:
Three-dimensional trim holder, the special optical cable, surface array charge-coupled device CCD, the control device that constitute by imaging optical cable and Transmission Fibers;
First end face of described special optical cable is fixed by described three-dimensional trim holder, and described first end face is meant the end face near the telescope focus of described laser radar optical receiving system;
Described three-dimensional trim holder also is connected with described control device;
Second end face of described imaging optical cable is connected with described area array CCD, and second end face of described imaging optical cable is meant the end face of described imaging optical cable away from the telescope focus of described laser radar optical receiving system;
Second end face of described Transmission Fibers is connected with described control device, and second end face of described Transmission Fibers is meant the end face of described Transmission Fibers away from the telescope focus of described laser radar optical receiving system;
The output end of image of described area array CCD is connected with described control device.
A kind of application rights requires the 1 described debug system method that coupling is debugged to the optical fiber in the laser radar optical receiving system, comprising:
Described control device receives the picture signal of described area array CCD output;
The distribution that described control device is fastened in the three-dimensional Cartesian coordinates of described three-dimensional trim holder according to imaging pixel point in the described picture signal, adjust the position of described three-dimensional trim holder, make first end face of Transmission Fibers of described special optical cable align with described telescope focus.
As seen from the above technical solution provided by the invention, in the embodiment of the invention, control device drives three-dimensional trim holder and carries out the position adjustment, feasible first end face by the fixing Transmission Fibers of three-dimensional trim holder can align with telescopical focus, thereby realize the debugging of optical fiber coupling in the laser radar optical receiving system automatically, than existing manual debug system, can reduce the difficulty of debugging, and shorten the time of debugging.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The debug system structural representation that Fig. 1 provides for the embodiment of the invention;
The special cable configuration synoptic diagram that Fig. 2 provides for the embodiment of the invention;
The telescope emergent light that Fig. 3 provides for Application Example of the present invention drops on the hot spot synoptic diagram on the special optical cable;
The area array CCD imaging synoptic diagram that Fig. 4 provides for Application Example of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that is obtained under the creative work prerequisite.
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
The embodiment of the invention provides the debug system of optical fiber coupling in a kind of laser radar optical receiving system, and its structure comprises as shown in Figure 1:
(1), three-dimensional trim holder, first end face that is used for fixing special optical cable, and be connected with control device by the three-dimensional trim holder control line, under the control of control device, adjust the position of first end face of special optical cable, the light signal that makes telescope collect is coupled in the Transmission Fibers.For example and without limitation, the three-dimensional trim holder that the embodiment of the invention provides can be the accurate adjustment rack of three-dimensional adjustable piezoelectric type, the principle of work of the accurate adjustment rack of three-dimensional adjustable piezoelectric type is that the feedback voltage according to control device sends carries out the position adjustment in three-dimensional cartesian coordinate system.The accurate adjustment rack of three-dimensional adjustable piezoelectric type not only can realize automatic adjustment, and the precision that the position is adjusted is higher with respect to traditional mechanical type three-dimensional trim holder.
(2), the special optical cable that constitutes by imaging optical cable and Transmission Fibers.Wherein, first end face of special optical cable (being first end face of imaging optical cable and first end face of Transmission Fibers) is fixed by three-dimensional trim holder, so that the light signal that receiving telescope is collected, described first end face is meant the end face near above-mentioned telescope focus; Second end face of Transmission Fibers is connected with control device, so that the light signal that receives is sent to control device, second end face of described Transmission Fibers is meant the end face of described Transmission Fibers away from the telescope focus; Second end face of imaging optical cable and area array CCD (Charge Coupled Device, charge-coupled image sensor) connects, be coupled into area array CCD so that receive light signal through the imaging optical cable, second end face of described imaging optical cable is meant the end face of described imaging optical cable away from the telescope focus.
(3), area array CCD, be used for generating picture signal, and picture signal sent to control device according to the light signal that receives.The output end of image of area array CCD is connected with control device.
(4), control device.In embodiments of the present invention, control device can be a computing machine, also can be other devices that possess control function.Understand the debugging situation intuitively for the ease of operating personnel, can also comprise display module in the control device that the embodiment of the invention provides.
In the embodiment of the invention, as shown in Figure 2, the optical fiber in the described special optical cable is the center with the Transmission Fibers, closely arranges around this center.That is to say, the distribution that is centrosymmetric of the optical fiber in the special optical cable, and Transmission Fibers is positioned at symcenter.
The system that the embodiment of the invention provides, drive three-dimensional trim holder by control device and carry out the position adjustment, feasible first end face by the fixing Transmission Fibers of three-dimensional trim holder can align with telescopical focus, thereby realize the debugging of optical fiber coupling in the laser radar optical receiving system automatically, than existing manual debug system, can reduce the difficulty of debugging, and shorten the time of debugging.
The system that the embodiment of the invention provides also comprises:
Laser beam emitting device is used to launch light signal, and this light signal is specially laser;
The beam expander device is used for the light signal of laser beam emitting device emission is carried out launching behind the beam expander;
Place the corner reflector of telescopical light-emitting window, corner reflector is a kind of reflection unit of reflected light along the reverse outgoing of incident direction of light that make.
The embodiment of the invention also provides a kind of above-mentioned debug system method that coupling is debugged to the optical fiber in the laser radar optical receiving system of using, and specifically comprises following operation:
Step 1, control device receive the picture signal of area array CCD output, and receive the light signal of Transmission Fibers output;
Step 2, control device according to imaging pixel point in the described picture signal on the X-Y of above-mentioned three-dimensional cartesian coordinate system coordinate plane distribution and the intensity of described light signal, adjust the position of three-dimensional trim holder, make the light signal that telescope collects (telescope collect light signal by the focus outgoing) vertically pass the center of first end face of Transmission Fibers, and the light signal strength maximum of described Transmission Fibers output; Described X-Y coordinate plane is vertical by the light signal of focus outgoing with described telescope.
The light signal of collecting when telescope vertically passes the center of first end face of Transmission Fibers, and the light signal strength of described Transmission Fibers output is when maximum, thinks coupling effect the best of Transmission Fibers and telescope focus, and debugging is finished.
In the embodiment of the invention, all corresponding unique numbering of each optical fiber in the special optical cable, wherein, as shown in Figure 2, Transmission Fibers is No. 0 optical fiber, each optical fiber of imaging optical cable is since No. 1, all the numbering of a positive integer of correspondence.
Each optical fiber in the imaging optical cable is corresponding with a pixel in the area array CCD respectively.Lightray propagation is arranged in optical fiber, and then the pixel of this optical fiber connection converts this light signal to digital signal, in the embodiment of the invention, this digital signal is called the imaging pixel point.Accordingly, the pixel that connects with the optical fiber of imaging optical cable has the numbering identical with this optical fiber, and the imaging pixel point that this pixel generates also has the numbering identical with this optical fiber.
So, before step 1, the method that the embodiment of the invention provides also comprises following operation:
Area array CCD receives the light signal of imaging optical cable output, generates picture signal according to this light signal, comprises in the described picture signal: the numbering of imaging pixel point and each imaging pixel point.
Between above-mentioned steps 1 and step 2, this method also comprises following operation: control device generates the coordinate of each imaging pixel point on above-mentioned X-Y coordinate plane according to predefined coded system, and is created as the corresponding relation between the coordinate of picture numbering of pixel and imaging pixel point.
In the method that the embodiment of the invention provides, the specific implementation of above-mentioned steps 2 is as follows:
Step 201, control device are judged the distribution that whether is centrosymmetric of the imaging pixel point in the described picture signal;
If, execution in step 203, if not, execution in step 202;
Wherein, step 201 specifically can be: control device judges that imaging pixel point in the described picture signal is whether about the true origin symmetry of X-Y coordinate plane.
Step 202, control device are adjusted the position of first end face on the X-Y coordinate plane of described special optical cable by the control three-dimensional trim holder, make the distribution that is centrosymmetric of imaging pixel point in the described picture signal, execution in step 203;
Step 203, control device are adjusted the position of three-dimensional trim holder on the Z axle, up to area array CCD output image signal no longer, described Z axle is perpendicular to described X-Y coordinate plane, execution in step 204;
Step 204, control device are adjusted the position of three-dimensional trim holder, up to the light signal strength maximum of Transmission Fibers output according to the intensity of the light signal of Transmission Fibers output on described Z axle.
Wherein, the specific implementation of above-mentioned steps 204 can be: before and after comparison position is adjusted, the light signal strength of described Transmission Fibers output, with the difference of light signal strength as feedback signal, self-adaptation is adjusted the position of three-dimensional trim holder, up to the light signal strength maximum of described Transmission Fibers output.
Owing to spread after the light signal of telescope outgoing converges to the focus place, therefore, its distribution that all is centrosymmetric in Z axle optional position is not represented in the distribution that is centrosymmetric in certain position of Z axle of the imaging pixel point in above-mentioned picture signal.As shown in Figure 3, when the light signal of telescope outgoing drops on first end face of special optical cable, when forming among the figure hot spot shown in the left side, the distribution that is centrosymmetric of imaging pixel point.But increase or reduce axial distance with focus by the feedback voltage that drives the Z axle, when making the more close focus of the end face of winning, the light signal of telescope outgoing drops on special optical cable first end face, form the hot spot shown in the right side among the figure, at this moment, hot spot diminishes, the distribution that no longer is centrosymmetric of imaging pixel point.In order to guarantee that first end face is on any position of Z axle, the distribution that all is centrosymmetric of imaging pixel point, in the embodiment of the invention, the specific implementation of above-mentioned steps 202 can be: control device is adjusted the position of described special optical cable on described X-Y coordinate plane by adjust the position of three-dimensional trim holder on the X-Y coordinate plane; After the point of the imaging pixel in the described picture signal is centrosymmetric distribution, control device is adjusted the position of three-dimensional trim holder on the Z axle, if after the change in location on the Z axle, the distribution that no longer is centrosymmetric of imaging pixel point in the described picture signal, then continue on the X-Y coordinate plane, to adjust the position of three-dimensional trim holder, when the change in location of three-dimensional trim holder on the Z axle, the distribution that always is centrosymmetric of the imaging pixel point of described picture signal.
Below will be by a concrete Application Example, the debug system that describing the application embodiment of the invention in detail provides is carried out the specific implementation of optical fiber coupling debugging.
In system as shown in Figure 1, the laser beam emitting device emitted laser is carried out after the beam expander entering angle reverberator through the beam expander device; Under the reflex of corner reflector, light signal enters telescope along the opposite direction of incident direction; Light signal outgoing under the effect of the mirror reflection mirror of looking in the distance, and focus on telescopical focus.
Light signal enters near first end face of the special optical cable the telescope focus.Light signal is through imaging optical cable transmission, is coupled into area array CCD by second end face of imaging optical cable; Light signal is through Transmission Fibers, is coupled into control device by second end face of Transmission Fibers.
Then, should specifically comprise following operation with the adjustment method that embodiment provides:
Step 1, area array CCD generate picture signal according to the light signal that receives, and picture signal is sent to control device;
Step 2, control device are judged the distribution that whether is centrosymmetric of the imaging pixel point in the picture signal, if, execution in step 4, otherwise, execution in step 3;
Wherein, for example and without limitation, when light signal that telescope sends drops on hot spot on the special optical cable cross section shown in Fig. 4 left side the time, the area array CCD imaging results is shown in Fig. 4 right side.So, control device applies feedback voltage to the piezoelectric ceramics of three-dimensional trim holder X-axis, and the control three-dimensional trim holder moves along the X-axis forward; Control device applies feedback voltage to the piezoelectric ceramics of three-dimensional trim holder Y-axis, and the control three-dimensional trim holder moves along the Y-axis negative sense.
Step 4, control device apply feedback voltage to the piezoelectric ceramics of three-dimensional trim holder Z axle, on the Z axle, adjust the position of three-dimensional trim holder, judge that three-dimensional trim holder is after the change in location on the Z axle, the distribution that whether still is centrosymmetric of imaging pixel point in the picture signal of area array CCD output, if three-dimensional trim holder moves on the Z axle, the distribution that always is centrosymmetric of the picture signal of area array CCD output, then execution in step 6, otherwise, execution in step 5;
Step 6, control device apply feedback voltage to the piezoelectric ceramics of three-dimensional trim holder Z axle, adjust the position of three-dimensional trim holder on the Z axle, can not imaging up to area array CCD, and execution in step 7;
Wherein, when area array CCD can not imaging, the light signal that the expression telescope sends all concentrated on the Transmission Fibers.
Finely tune step 7, the control device position to three-dimensional trim holder on the Z axle, up to the light signal strength maximum of Transmission Fibers output.
Wherein, form by fibre core and covering owing to optical fiber.When area array CCD can not imaging, the light signal that telescope sends also may be distributed on the covering of Transmission Fibers.By the operation of step 7, make light signal as far as possible all enter the fibre core of Transmission Fibers, at this moment, the coupling debugging operations of Transmission Fibers is finished.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation 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 claims.
Claims (10)
1. the debug system of optical fiber coupling in the laser radar optical receiving system is characterized in that, comprising:
Three-dimensional trim holder, the special optical cable, surface array charge-coupled device CCD, the control device that constitute by imaging optical cable and Transmission Fibers;
First end face of described special optical cable is fixed by described three-dimensional trim holder, and described first end face is meant the end face near the telescope focus of described laser radar optical receiving system;
Described three-dimensional trim holder also is connected with described control device;
Second end face of described imaging optical cable is connected with described area array CCD, and second end face of described imaging optical cable is meant the end face of described imaging optical cable away from the telescope focus of described laser radar optical receiving system;
Second end face of described Transmission Fibers is connected with described control device, and second end face of described Transmission Fibers is meant the end face of described Transmission Fibers away from the telescope focus of described laser radar optical receiving system;
The output end of image of described area array CCD is connected with described control device.
2. debug system according to claim 1 is characterized in that, described system also comprises:
Laser beam emitting device is used to launch laser;
The beam expander device is used for described laser beam emitting device emitted laser is carried out launching behind the beam expander;
Place the corner reflector of described telescopical light-emitting window, the light signal that is used to make described beam expander device emission enters described telescope according to the opposite direction of incident direction.
3. system according to claim 1 and 2 is characterized in that, described three-dimensional trim holder is the accurate adjustment rack of three-dimensional adjustable piezoelectric type.
4. system according to claim 1 and 2 is characterized in that, the distribution that is centrosymmetric of the optical fiber in the described special optical cable, and described Transmission Fibers is positioned at symcenter.
5. an application rights requires the 1 described debug system method that coupling is debugged to the optical fiber in the laser radar optical receiving system, it is characterized in that, comprising:
Step 1, described control device receive the picture signal of described area array CCD output, and receive the light signal of described Transmission Fibers output;
Step 2, described control device are according to the distribution of imaging pixel point on the X-Y coordinate plane and the intensity of described light signal in the described picture signal, adjust the position of described three-dimensional trim holder, make the light signal of described telescope by the focus outgoing vertically pass the center of first end face of the Transmission Fibers of described special optical cable, and the light signal strength maximum of described Transmission Fibers output; Described X-Y coordinate plane is vertical by the light signal of focus outgoing with described telescope.
6. method according to claim 5 is characterized in that, before the described step 1, this method also comprises:
Described area array CCD receives the light signal of described imaging optical cable output, generates described picture signal according to described light signal, comprises in the described picture signal: the numbering of imaging pixel point and each imaging pixel point.
7. method according to claim 6 is characterized in that, between described step 1 and described step 2, this method also comprises:
Described control device is according to predefined coded system, generate the coordinate of each imaging pixel point on described X-Y coordinate plane, and being created as corresponding relation between the coordinate of numbering and imaging pixel point of picture pixel, the numbering of described imaging pixel point is numbered consistent with the optical fiber in the corresponding imaging optical cable.
8. according to any described method of claim 5～7, it is characterized in that described step 2 specifically comprises:
Described control device is judged the distribution that whether is centrosymmetric of the imaging pixel point in the described picture signal;
If not, then described control device is adjusted the position of first end face on the X-Y coordinate plane of described special optical cable by controlling described three-dimensional trim holder, makes the distribution that is centrosymmetric of imaging pixel point in the described picture signal;
When the point of the imaging pixel in the described picture signal be centrosymmetric distribute after, described control device is adjusted the position of described three-dimensional trim holder on the Z axle, up to described area array CCD output image signal no longer, described Z axle is perpendicular to described X-Y coordinate plane;
Described control device is adjusted the position of described three-dimensional trim holder according to the intensity of the light signal of described Transmission Fibers output on described Z axle, up to the light signal strength maximum of described Transmission Fibers output.
9. method according to claim 8, it is characterized in that, described control device is adjusted the position of first end face on the X-Y coordinate plane of described special optical cable by controlling described three-dimensional trim holder, makes imaging pixel point in the described picture signal be centrosymmetric to distribute and comprises:
Described control device is adjusted the position of described special optical cable on described X-Y coordinate plane by adjust the position of described three-dimensional trim holder on the X-Y coordinate plane;
After the point of the imaging pixel in the described picture signal is centrosymmetric distribution, described control device is adjusted the position of described three-dimensional trim holder on the Z axle, if after the change in location, the distribution that no longer is centrosymmetric of imaging pixel point in the described picture signal, then on the X-Y coordinate plane, adjust the position of described three-dimensional trim holder, when the change in location of described three-dimensional trim holder on the Z axle, the distribution that always is centrosymmetric of the imaging pixel point of described picture signal.
10. method according to claim 8, it is characterized in that, described control device is adjusted the position of described three-dimensional trim holder according to the intensity of the light signal of described Transmission Fibers output on described Z axle, the light signal strength maximum of exporting up to described Transmission Fibers specifically comprises:
Before and after comparison position is adjusted, the light signal strength of described Transmission Fibers output, as feedback signal, self-adaptation is adjusted the position of three-dimensional trim holder, up to the light signal strength maximum of described Transmission Fibers output with the difference of light signal strength.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760570A (en) * | 2014-02-18 | 2014-04-30 | 北京理工大学 | Laser three-dimensional imaging system based on human-vision-based simulated mechanism |
| CN104808193A (en) * | 2015-04-29 | 2015-07-29 | 中国科学技术大学 | Non-polarization beam splitter-based Rayleigh scattering Doppler frequency discriminator for F-P (Fabry-Perot) etalons |
| CN109163884A (en) * | 2018-10-29 | 2019-01-08 | 武汉理工大学 | A kind of Optical fibre parametric measurement system and method |
| CN113740876A (en) * | 2021-08-13 | 2021-12-03 | 探维科技(北京)有限公司 | Three-dimensional laser radar light path adjusting method and device and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6097860A (en) * | 1998-06-05 | 2000-08-01 | Astarte Fiber Networks, Inc. | Compact optical matrix switch with fixed location fibers |
| CN101038341A (en) * | 2007-04-27 | 2007-09-19 | 北京航空航天大学 | Passive synthesis aperture photon imaging method and system |
-
2011
- 2011-08-18 CN CN 201110237900 patent/CN102288955B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6097860A (en) * | 1998-06-05 | 2000-08-01 | Astarte Fiber Networks, Inc. | Compact optical matrix switch with fixed location fibers |
| CN101038341A (en) * | 2007-04-27 | 2007-09-19 | 北京航空航天大学 | Passive synthesis aperture photon imaging method and system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760570A (en) * | 2014-02-18 | 2014-04-30 | 北京理工大学 | Laser three-dimensional imaging system based on human-vision-based simulated mechanism |
| CN103760570B (en) * | 2014-02-18 | 2016-01-20 | 北京理工大学 | A kind of laser three-dimensional imaging system based on Prosthetic Hand vision mechanism |
| CN104808193A (en) * | 2015-04-29 | 2015-07-29 | 中国科学技术大学 | Non-polarization beam splitter-based Rayleigh scattering Doppler frequency discriminator for F-P (Fabry-Perot) etalons |
| CN104808193B (en) * | 2015-04-29 | 2017-10-27 | 中国科学技术大学 | F P etalon Rayleigh scattering Doppler's frequency discrimination devices based on unpolarized Amici prism |
| CN109163884A (en) * | 2018-10-29 | 2019-01-08 | 武汉理工大学 | A kind of Optical fibre parametric measurement system and method |
| CN113740876A (en) * | 2021-08-13 | 2021-12-03 | 探维科技(北京)有限公司 | Three-dimensional laser radar light path adjusting method and device and electronic equipment |
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