CN117109647B - Dynamic vision sensor performance testing device and testing method - Google Patents
Dynamic vision sensor performance testing device and testing method Download PDFInfo
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- CN117109647B CN117109647B CN202311081536.6A CN202311081536A CN117109647B CN 117109647 B CN117109647 B CN 117109647B CN 202311081536 A CN202311081536 A CN 202311081536A CN 117109647 B CN117109647 B CN 117109647B
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- 238000012360 testing method Methods 0.000 title claims abstract description 89
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 230000033001 locomotion Effects 0.000 claims description 16
- 230000002146 bilateral effect Effects 0.000 claims description 6
- 238000011056 performance test Methods 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims 2
- 230000004888 barrier function Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 206010034960 Photophobia Diseases 0.000 description 1
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 208000013469 light sensitivity Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/04—Optical benches therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a performance testing device and a performance testing method for a dynamic vision sensor, and relates to the technical field of dynamic vision sensor testing equipment; the device for testing the performance of the dynamic vision sensor comprises a test table, wherein a placing table for placing the dynamic vision sensor is arranged at the rear part of the upper end surface of the test table, a transverse moving mechanism for capturing and testing the dynamic vision sensor is arranged at the upper end surface of the test table, the transverse moving mechanism comprises a sliding seat fixedly connected to the upper end surface of the test table, and an electric telescopic rod is fixedly connected to the right part of the front end surface of the sliding seat through a connecting block.
Description
Technical Field
The invention relates to the technical field of dynamic vision sensor testing equipment, in particular to a dynamic vision sensor performance testing device and a testing method.
Background
The dynamic vision sensor is a sensor technology based on neuroscience inspiring, the working principle of the dynamic vision sensor is different from that of a traditional image sensor, the traditional image sensor captures a complete image in a pixel-by-pixel sampling mode, the dynamic vision sensor achieves high-speed, low-power consumption and high dynamic range image acquisition by sampling only when pixels change, the dynamic vision sensor works in a mode similar to a biological vision system, when the change of light intensity is perceived, the sensor can instantly output a data stream instead of sampling according to fixed time intervals, the dynamic vision sensor can capture motion and change with microsecond-level time resolution, and is suitable for scenes of high-speed motion, meanwhile, the dynamic vision sensor has lower power consumption and data transmission requirements due to sampling only when pixels change, can provide accurate real-time feedback and adapt to a fast-changing environment, can also provide a higher dynamic range, and can still effectively extract image details under different illumination conditions.
The dynamic vision sensor needs to be subjected to spot check after manufacturing to test various performances of the dynamic vision sensor so as to ensure that the quality of the manufactured dynamic vision sensor is qualified, and most of traditional dynamic vision sensor motion blur testing equipment is tested in a mode that an object or the sensor is driven by a motor to move rapidly on a sliding rail, but the testing mode can reach the maximum speed after the motor just starts to wait for a certain distance, so that the length of a guide rail needs to be prolonged to enable the object or the sensor to move to reach a test distance and a test speed which are long enough, and the testing precision is affected.
In addition, the existing visual sensor testing environments are mostly built temporarily, environmental requirements are met through shielding, polishing, lifting and other modes, natural light leakage interference exists in the environments, a compensating light source is uneven, the brightness of testing environment light is uncontrollable, and accuracy of results when dynamic visual sensors are tested in a dynamic range is affected.
Disclosure of Invention
The invention provides a performance testing device and a performance testing method for a dynamic vision sensor, which solve the technical problems that the minimum speed required by detection can be achieved only after a motor needs to wait for a certain distance to move when the dynamic vision sensor is subjected to motion blur test, so that the object or the sensor can move to a long enough testing distance and testing speed only by prolonging the length of a guide rail, the testing precision is affected, and the detection environment is affected by light leakage interference and uneven light filling due to the fact that the penetrating dynamic vision sensor testing environment is mostly temporarily built, and the accuracy of a detection result is affected.
The invention provides a performance testing device for a dynamic vision sensor, which comprises a test bench, wherein a placing table for placing the dynamic vision sensor is arranged at the rear part of the upper end surface of the test bench, a transverse moving mechanism for capturing and testing the dynamic vision sensor is arranged at the upper end surface of the test bench, a light adjusting mechanism sleeved outside the transverse moving mechanism and the placing table is arranged at the upper end surface of the test bench, the transverse moving mechanism comprises a sliding seat fixedly connected to the upper end surface of the test bench, a sliding groove formed in the upper end surface of the sliding seat, a sliding block slidingly connected to the inside of the sliding groove, a bulb arranged at the upper part of the sliding block, a strip-shaped through groove formed in the front end surface of the sliding seat, an elastic inhaul cable fixedly connected to the front end surface of the sliding block and arranged in the left end surface of the strip-shaped through groove, one end of the elastic inhaul cable far away from the convex rod is arranged at the left part of the front end surface of the sliding seat through a force adjusting component, the front end surface of the sliding seat is provided with a guide groove, the front end surface of the sliding seat is formed by two horizontal sections with different horizontal lengths and a tilting section communicated with the two horizontal sections, and the front end surfaces of the electric sliding seat are fixedly connected with a telescopic connecting block through a telescopic rod.
In a possible implementation manner, the dimming mechanism comprises a rectangular cover box fixedly connected to the upper end face of the test bench, a bulkhead is fixedly connected to the upper portion of an inner cavity of the rectangular cover box, a plurality of rotary columns are connected to the front side and the rear side of the bulkhead in a mutual equidistant mode, a light barrier plate which is fixedly connected with the axis of the rotary columns is embedded in the rotary columns, each rotary column is fixedly connected with a gear ring, a wall plate on the right portion of the rectangular cover box penetrates through a rack which is in sliding connection with the gear ring in a meshed mode, a plurality of strip-shaped lamp holders are fixedly mounted on the wall of the upper cavity of the rectangular cover box at equal intervals, a plurality of lamp beads are uniformly arranged on the lower portion of each strip-shaped lamp holder, a spring telescopic column is fixedly connected to the right end face of the rectangular cover box, a top block which is abutted to the upper portion of the rack is fixedly connected to the lower end of the spring telescopic column, and a box door is hinged to the wall plate on the front portion of the rectangular cover box.
In a possible implementation manner, the force adjusting assembly comprises a bar frame fixedly connected to the left part of the front end face of the sliding seat, an adjusting block is slidably connected inside the bar frame, the left end of the elastic inhaul cable is fixedly connected to the right end face of the adjusting block, a plurality of clamping grooves are formed in the upper side and the lower side of the bar frame at equal intervals, grooves are formed in the upper end face and the lower end face of the adjusting block, and clamping blocks matched with the clamping grooves are fixedly connected inside the grooves through spring telescopic jacking columns.
In one possible implementation manner, the pulling component comprises a sliding block fixedly connected to the left end of the electric telescopic rod, a vertical seat is slidably connected to the outer portion of the sliding block, a sliding column is slidably arranged in the guide groove and fixedly connected to the rear end face of the vertical seat, a lug is fixedly connected to the upper end face of the vertical seat, a pulling plate is hinged to the inner portion of the lug through a rotating shaft matched with a torsion spring, and a stop block used for limiting the pulling plate is fixedly connected to the left portion of the upper end face of the vertical seat.
In one possible implementation manner, the sliding block upper end surface is fixedly connected with an annular disc, a plurality of annular grooves are sequentially formed in the upper end surface of the annular disc from inside to outside at equal intervals, arc blocks are slidably connected in the annular grooves, and the optical filters are fixedly connected to the upper end surface of the arc blocks.
In a possible implementation manner, the mounting plate is fixedly connected with the rear portion of the upper end face of the test board, the baffle is hinged to the upper end face of the mounting plate through a vertical shaft in a bilateral symmetry manner, the protruding block is fixedly connected with the middle portion of the upper end face of the mounting plate, the threaded rod penetrates through the front end face of the protruding block and is connected with the rear end of the threaded rod in a threaded mode, the cross rod is connected with the rear end of the threaded rod in a rotating mode, and the notch clamp arranged on the lower portion of the baffle in a sliding sleeve manner is hinged to the upper portion of the cross rod in a bilateral symmetry manner.
In one possible implementation manner, the left groove wall of the strip-shaped through groove is fixedly connected with a damping spring, and the right end of the damping spring is fixedly connected with an elastic block.
A dynamic vision sensor performance test method is completed by adopting a dynamic vision sensor performance test device, and comprises the following steps: s1: the dynamic vision sensor is placed on the placing table, the brightness degree outside the dynamic vision sensor is adjusted through the dimming mechanism to test the dynamic range of the dynamic vision sensor, different illumination conditions are set in a dynamic test scene, and the brightness range and detail loss condition of a captured image are analyzed, so that the performance of the dynamic range of the dynamic vision sensor is tested.
S2: then the bulb in the transverse moving mechanism is used for rapidly moving on the sliding seat, an image is captured and the blurring degree is analyzed, so that the motion blurring test of the dynamic vision sensor can be completed.
From the above technical scheme, the invention has the following advantages:
according to the invention, the bulb can quickly reach the minimum speed value required by the motion blur test by stretching and quickly releasing the elastic inhaul cable to drive the bulb to move, the moving distance of the bulb can be locked at different positions of the bar frame by combining the clamping blocks and the clamping grooves, the elastic inhaul cable can be further regulated to be in different tensile strengths, the moving speed of the bulb during the test can be further quickly regulated, the dynamic vision sensor can be conveniently tested at different speeds, and the comprehensiveness of the test and the accuracy of the test are improved.
According to the invention, the dynamic vision sensor is sealed by placing the dynamic vision sensor in the rectangular cover box, so that the interference of external light to the dynamic vision sensor is avoided, the rotary column drives the light barrier to rotate to adjust the gap between two adjacent light barriers, thereby flexibly adjusting the amount of light entering the test environment, being convenient for flexibly adjusting the external brightness of the dynamic vision sensor during dynamic range test, and improving the accuracy of dynamic range test.
According to the invention, the brightness of the bulb is weakened by moving different numbers of optical filters, so that the light sensitivity performance of the dynamic vision sensor with different brightness can be tested, and the testing diversity is improved.
According to the invention, the included angle between the two baffles is adjusted through the combination of the threaded rod and the cross rod, so that the visual field of the inspection range of the dynamic vision sensor can be flexibly adjusted during the test, the dynamic vision sensor can only detect the range between the baffles, and the interference condition to the dynamic vision sensor during the test is further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a performance testing device for a dynamic vision sensor provided by the invention.
Fig. 2 is a schematic cross-sectional view of an overall structure provided by the present invention.
Fig. 3 is a schematic cross-sectional view of a part of a light adjusting mechanism provided by the invention.
Fig. 4 is a schematic view of a baffle installation structure provided by the invention.
Fig. 5 is a schematic structural diagram of a lateral movement mechanism provided by the invention.
Fig. 6 is an enlarged schematic view of the structure of the portion a in fig. 5 according to the present invention.
Fig. 7 is an enlarged schematic view of the structure of the portion B in fig. 5 according to the present invention.
Fig. 8 is a schematic view of a part of a lateral movement mechanism according to the present invention.
Wherein the above figures include the following reference numerals:
1. a test bench; 2. a placement table; 3. a lateral movement mechanism; 31. a slide; 32. a sliding block; 33. a bulb; 34. a strip-shaped through groove; 35. a protruding rod; 36. an elastic guy cable; 37. a force adjusting component; 371. a bar frame; 372. an adjusting block; 373. a clamping groove; 374. a clamping block; 38. a guide groove; 39. a pulling assembly; 391. a sliding block; 392. a vertical seat; 393. a spool; 394. a pulling plate; 395. a stop block; 310. an electric telescopic rod; 4. a light adjusting mechanism; 41. a rectangular cover box; 42. a spacer frame; 43. a rotating column; 44. a light barrier; 45. a gear ring; 46. a rack; 47. a lamp bead; 5. an annular disc; 6. an annular groove; 7. an arc-shaped block; 8. a light filter; 9. a mounting plate; 10. a baffle; 11. a threaded rod; 12. a notch card; 13. and (5) a damping spring.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 and 2, the present invention provides a technical solution: the utility model provides a dynamic vision sensor performance test device, includes testboard 1, and testboard 1 up end rear portion installs and is used for placing dynamic vision sensor's placing table 2, and testboard 1 up end is installed and is used for catching the lateral shifting mechanism 3 of test to dynamic vision sensor, and testboard 1 up end installs the cover and establishes at the lateral shifting mechanism 3 and place the outside dimming mechanism 4 of table 2.
Referring to fig. 5, 7 and 8, in the present embodiment, the lateral movement mechanism 3: the test bench comprises a sliding seat 31 fixedly connected to the upper end face of the test bench 1, a sliding groove formed in the upper end face of the sliding seat 31, a sliding block 32 slidingly connected to the inner portion of the sliding groove, a bulb 33 arranged on the upper portion of the sliding block 32, a strip-shaped through groove 34 formed in the front end face of the sliding seat 31, a convex rod 35 fixedly connected to the front end face of the sliding block 32 and arranged in the strip-shaped through groove 34 in a sliding mode, an elastic guy cable 36 fixedly connected to the left end face of the convex rod 35, one end, far away from the convex rod 35, of the elastic guy cable 36 is arranged on the left end face of the front end face of the sliding seat 31 through a force adjusting component 37, a guide groove 38 is formed in the front end face of the sliding seat 31, the guide groove 38 is composed of two horizontal sections which are different in horizontal height and different in length and an inclined section which are communicated with the adjacent ends of the two horizontal sections, an electric telescopic rod 310 is fixedly connected to the right end of the front end face of the sliding seat 31, a pulling component 39 is fixedly connected to the right end of the electric telescopic rod 310 through a connecting block, a pulling component 39 is fixedly connected to the left end of the electric telescopic rod 310, which is matched with the guide groove 38 to pull the convex rod 35, the left wall of the telescopic rod is fixedly connected to the left end of the telescopic spring 13, and the right end of the telescopic rod 13.
Referring to fig. 7, the force adjusting assembly 37 includes a bar frame 371 fixedly connected to a left portion of a front end surface of the slide base 31, an adjusting block 372 is slidably connected inside the bar frame 371, a left end of an elastic cable 36 is fixedly connected to a right end surface of the adjusting block 372, a plurality of clamping grooves 373 are formed in the upper and lower opposite sides of the bar frame 371 at equal intervals, grooves are formed in the upper and lower end surfaces of the adjusting block 372, and clamping blocks 374 matched with the clamping grooves 373 are fixedly connected inside the grooves through spring telescopic jacking columns.
Referring to fig. 6 and 8, the pulling component 39 includes a sliding block 391 fixedly connected to a left end of the electric telescopic rod 310, a vertical seat 392 slidably connected to an outer portion of the sliding block 391, a sliding column 393 fixedly connected to a rear end surface of the vertical seat 392 and slidably disposed in the guide slot 38, a lug fixedly connected to an upper end surface of the vertical seat 392, a pulling plate 394 hinged to the lug by a torsion spring, and a stop block 395 fixedly connected to a left portion of the upper end surface of the vertical seat 392 for limiting the pulling plate 394.
When the motion blur test is performed: the dynamic visual sensor (hereinafter referred to as a sensor) is placed on the placing table 2, when the elastic inhaul cable 36 is in a natural state, the sliding block 32 is positioned at the left part of the sliding seat 31, a clamping groove 373 at a proper position is selected according to the required speed when the sensor is tested, the clamping block 374 is pressed, the spring telescopic jacking column is compressed to enable the spring telescopic jacking column to retract into the groove, then the sliding adjusting block 372 is slid to the position of the selected clamping groove 373, the pressed clamping block 374 is loosened, the spring telescopic jacking column is reset, the stretching jacking clamping block 374 is clamped into the clamping groove 373, the strength of the stretched elastic inhaul cable 36 is adjusted, then the electric telescopic rod 310 is controlled to stretch to drive the vertical seat 392 to move leftwards until the vertical seat 392 drives the pulling plate 394 to move leftwards beyond the protruding rod 35, then the electric telescopic rod 310 is contracted to drive the vertical seat 392 to move rightwards, at the moment, and the pulling plate 394 is driven to move rightwards due to the fact that the stopping block 395 is abutted to the left part of the pulling plate 394, the pulling plate 394 is synchronously moved rightwards, and then the elastic inhaul cable 36 is gradually stretched when the pulling plate 394 is gradually stretched.
The vertical seat 392 moves right to drive the sliding column 393 to slide in the left long horizontal section of the guide groove 38 until the sliding column 393 is about to slide into the inclined section of the guide groove 38, at the moment, the elastic guy cable 36 is stretched to be close to the limit state, the sliding column 393 gradually slides towards the right lower side when sliding into the inclined section of the guide groove 38, further, the pulling plate 394 is driven to gradually move downwards through the vertical seat 392 until the sliding column is slid into the short horizontal section from the inclined section of the guide groove 38, at the moment, the pulling plate 394 moves downwards to be separated from the protruding rod 35, then the elastic guy cable 36 is reset to shrink fast and then pulls the sliding block 32 to move fast and leftwards, a speed value required for detection can be instantly reached, the bulb 33 arranged on the sliding block 32 is electrified to light in advance, the sliding block 32 moves leftwards under the pulling of the elastic guy cable 36, at the moment, the moving path of the bulb 33 can be used for carrying out motion test on the sliding block itself, the protruding rod 35 moves leftwards and finally collides against the elastic block, and the spring 13 is compressed, and the sliding block 32 can be prevented from being damaged by inertia instantly when the sliding block 32 stops.
Referring to fig. 6, in the present embodiment, an annular disc 5 is fixedly connected to an upper end surface of the sliding block 32, a plurality of annular grooves 6 are sequentially and equidistantly formed on the upper end surface of the annular disc 5 from inside to outside, arc-shaped blocks 7 are slidably connected inside each annular groove 6, and optical filters 8 are fixedly connected to the upper end surfaces of the arc-shaped blocks 7.
Before the bulb 33 is moved, the arc-shaped block 7 is pushed to drive the optical filter 8 to slide in the annular groove 6, and the optical filter 8 with different numbers is rotated before the bulb 33 is moved each time to move to the rear part of the bulb 33, and the optical filter 8 is dark, so that light emitted by the bulb 33 can be absorbed to a certain extent, the brightness of the bulb 33 during sensor testing can be indirectly regulated, and the photosensitivity of the sensor can be tested.
Referring to fig. 2 and 3, in this embodiment, the dimming mechanism 4 includes a rectangular housing 41 fixedly connected to an upper end surface of the test bench 1, a bulkhead 42 is fixedly connected to an upper portion of an inner cavity of the rectangular housing 41, a plurality of rotary columns 43 are rotatably connected to opposite sides of the bulkhead 42 at equal intervals, a light blocking plate 44 passing through an axis of the rotary columns 43 is fixedly connected to an inner portion of the rotary columns in an embedded manner, a gear ring 45 is fixedly connected to a front portion of each rotary column 43, a right wall plate of the rectangular housing 41 is connected to a rack 46 meshed with the gear ring 45 in a penetrating and sliding manner, a plurality of strip lamp holders are fixedly mounted on an upper cavity wall of the rectangular housing 41 at equal intervals, a plurality of lamp beads 47 are arranged at equal intervals on a lower portion of each strip lamp holder, a spring telescopic column is fixedly connected to a right end surface of the rectangular housing 41 through a fixing block, a top block abutting against the upper portion of the rack 46 is fixedly connected to a top block abutting against the rack 46, resistance of the rack 46 is increased by the spring telescopic column top block abutting against the rack 46, and random rotation of the rack 46 after movement is avoided.
Referring to fig. 4, a mounting plate 9 is fixedly connected to the rear portion of the upper end face of the test bench 1, a baffle 10 is hinged to the upper end face of the mounting plate 9 in a bilateral symmetry manner through a vertical shaft, a protruding block is fixedly connected to the middle portion of the upper end face of the mounting plate 9, a threaded rod 11 penetrates through the front end face of the protruding block and is connected with the rear end of the threaded rod 11 in a threaded mode, a cross rod is connected to the rear end of the threaded rod 11 in a rotating mode, and a notch clamp 12 is hinged to the upper portion of the cross rod in a bilateral symmetry manner and sleeved on the lower portion of the baffle 10 in a sliding mode.
Before dynamic range testing of the sensor: the rack 46 is pulled to move to drive the gear ring 45 to move, the gear ring 45 then drives the rotary column 43 to rotate, the rotary column 43 then drives the light barrier 44 to rotate, gaps between adjacent light barriers 44 are different when the light barrier 44 rotates by different angles, so that the light entering amount in the inner cavity of the lower portion of the rectangular cover box 41 can be adjusted according to different requirements, the brightness of the environment during sensor testing can be adjusted at will, the testing accuracy is improved, the threaded rod 11 is rotated to drive the cross rod to move, the cross rod moves to drive the notch card 12 to slide on the lower portion of the baffle 10, the baffle 10 is driven to rotate along the vertical axis, the range of the opening included angle between the two baffles 10 can be adjusted, the applicability adjustment can be carried out according to the detection range of the sensor, and the condition that the sensor is interfered outside the detection range in the testing process is avoided.
In addition, the invention also provides a performance test method of the dynamic vision sensor, which comprises the following steps: s1: the dynamic vision sensor is placed on the placing table 2, the brightness of the outside of the dynamic vision sensor is adjusted through the dimming mechanism 4 to test the dynamic range, different illumination conditions are set in a dynamic test scene, and the brightness range and detail loss condition of a captured image are analyzed, so that the performance of the dynamic range of the dynamic vision sensor is tested.
S2: then, the bulb 33 in the transverse moving mechanism 3 is used for fast moving on the sliding seat 31, an image is captured and the blurring degree is analyzed, so that the motion blurring test can be completed on the dynamic vision sensor.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "first," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second", "first", "second" may include at least one such feature, either explicitly or implicitly. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (7)
1. The utility model provides a dynamic vision sensor performance test device, includes testboard (1), its characterized in that: a placing table (2) for placing a dynamic vision sensor is arranged at the rear part of the upper end surface of the test table (1), a transverse moving mechanism (3) for capturing and testing the dynamic vision sensor is arranged at the upper end surface of the test table (1), and a dimming mechanism (4) sleeved outside the transverse moving mechanism (3) and the placing table (2) is arranged at the upper end surface of the test table (1);
the lateral movement mechanism (3):
the test bench comprises a sliding seat (31) fixedly connected to the upper end face of a test bench (1), a sliding groove formed in the upper end face of the sliding seat (31), a sliding block (32) slidingly connected to the inside of the sliding groove, a bulb (33) arranged on the upper portion of the sliding block (32), a strip-shaped through groove (34) formed in the front end face of the sliding seat (31), a protruding rod (35) fixedly connected to the front end face of the sliding block (32) and slidingly arranged in the strip-shaped through groove (34), an elastic stay cable (36) fixedly connected to the left end face of the protruding rod (35), and one end, far away from the protruding rod (35), of the elastic stay cable (36) is arranged on the left portion of the front end face of the sliding seat (31) through a force adjusting component (37);
the front end face of the sliding seat (31) is provided with a guide groove (38), the guide groove (38) is composed of two horizontal sections with different horizontal heights and different lengths and an inclined section communicated with the similar ends of the two horizontal sections, the right part of the front end face of the sliding seat (31) is fixedly connected with an electric telescopic rod (310) through a connecting block, and the left end of the electric telescopic rod (310) is provided with a pulling component (39) which is matched with the guide groove (38) to pull the convex rod (35) to move;
the dimming mechanism (4) comprises a rectangular cover box (41) fixedly connected to the upper end face of the test bench (1), a partition frame (42) is fixedly connected to the upper portion of an inner cavity of the rectangular cover box (41), a plurality of rotary columns (43) are connected to the front side and the rear side of the partition frame (42) at equal intervals in a rotating mode, a light blocking plate (44) fixedly connected with the axis of the rotary columns (43) is embedded in the rotary columns, gear rings (45) are fixedly connected to the front portions of the rotary columns (43), racks (46) meshed with the gear rings (45) are fixedly connected to the right wall plates of the rectangular cover box (41) in a penetrating and sliding mode, a plurality of strip lamp holders are fixedly mounted on the upper cavity wall of the rectangular cover box (41) at equal intervals, a plurality of lamp beads (47) are arranged on the lower portions of the strip lamp holders, spring telescopic columns are fixedly connected to the right end faces of the rectangular cover box (41) through fixing blocks, top blocks abutting against the upper portions of the racks (46) are fixedly connected to the lower ends of the telescopic columns, and door doors are hinged to the front wall plates of the rectangular cover box (41).
2. The dynamic vision sensor performance testing apparatus of claim 1, wherein: the force adjusting assembly (37) comprises a strip-shaped frame (371) fixedly connected to the left part of the front end face of the sliding seat (31), an adjusting block (372) is connected to the inside of the strip-shaped frame (371) in a sliding mode, the left end of the elastic stay rope (36) is fixedly connected to the right end face of the adjusting block (372), a plurality of clamping grooves (373) are formed in the upper side and the lower side of the strip-shaped frame (371) at equal intervals, grooves are formed in the upper end face and the lower end face of the adjusting block (372), and clamping blocks (374) matched with the clamping grooves (373) are fixedly connected to the inside of the grooves through spring telescopic jacking columns.
3. The dynamic vision sensor performance testing apparatus of claim 1, wherein: the pulling component (39) comprises a sliding block (391) fixedly connected to the left end of the electric telescopic rod (310), a vertical seat (392) which is slidably connected to the outside of the sliding block (391), a sliding column (393) which is fixedly connected to the rear end face of the vertical seat (392) and is arranged inside a guide groove (38) in a sliding mode, a lug is fixedly connected to the upper end face of the vertical seat (392), a pulling plate (394) is hinged to the inside of the lug through a rotating shaft matched with a torsion spring, and a stop block (395) which is used for limiting the pulling plate (394) is fixedly connected to the left part of the upper end face of the vertical seat (392).
4. The dynamic vision sensor performance testing apparatus of claim 1, wherein: the utility model discloses a device for fixing a light filter, including slip piece (32), including annular disc (5), a plurality of ring channel (6) have been seted up to equidistant in proper order from interior to outside to slip piece (32) up end fixedly connected with annular disc (5), every from interior equal sliding connection of ring channel (6) has arc piece (7), arc piece (7) up end fixedly connected with light filter (8).
5. The dynamic vision sensor performance testing apparatus of claim 1, wherein: the testing bench is characterized in that the mounting plate (9) is fixedly connected to the rear portion of the upper end face of the testing bench (1), the baffle (10) is hinged to the upper end face of the mounting plate (9) through a vertical shaft in a bilateral symmetry mode, the protruding block is fixedly connected to the middle portion of the upper end face of the mounting plate (9), the threaded rod (11) is connected to the front end face of the protruding block in a penetrating threaded mode, the cross rod is connected to the rear end of the threaded rod (11) in a rotating mode, and the notch clamp (12) arranged on the lower portion of the baffle (10) is hinged to the upper portion of the cross rod in a bilateral symmetry mode.
6. The dynamic vision sensor performance testing apparatus of claim 1, wherein: the left groove wall of the strip-shaped through groove (34) is fixedly connected with a cushioning spring (13), and the right end of the cushioning spring (13) is fixedly connected with an elastic block.
7. A method for testing performance of a dynamic vision sensor, which is characterized by being completed by adopting the dynamic vision sensor performance testing device as claimed in claim 1, comprising the following steps:
s1: the dynamic vision sensor is placed on a placing table (2), the brightness of the outside of the dynamic vision sensor is adjusted through a dimming mechanism (4) to test the dynamic range of the dynamic vision sensor, different illumination conditions are set in a dynamic test scene, and the brightness range and detail loss condition of a captured image are analyzed, so that the performance of the dynamic range of the dynamic vision sensor is tested;
s2: then, the bulb (33) in the transverse moving mechanism (3) is utilized to rapidly move on the sliding seat (31), images are captured and the blurring degree is analyzed, so that the motion blurring test of the dynamic vision sensor can be completed.
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