CN114544130B - Wireless earphone drop test method and device - Google Patents
Wireless earphone drop test method and device Download PDFInfo
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- CN114544130B CN114544130B CN202210094122.6A CN202210094122A CN114544130B CN 114544130 B CN114544130 B CN 114544130B CN 202210094122 A CN202210094122 A CN 202210094122A CN 114544130 B CN114544130 B CN 114544130B
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- 238000012360 testing method Methods 0.000 claims abstract description 103
- 239000000463 material Substances 0.000 claims abstract description 15
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- 238000001514 detection method Methods 0.000 claims description 10
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- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000003709 image segmentation Methods 0.000 claims description 3
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
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- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
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Abstract
The invention discloses a wireless earphone drop test method and device, wherein the device comprises a workbench, an industrial personal computer and a mechanical arm; the base of the mechanical arm is fixedly arranged above the workbench, and a material taking area, a rotating area and a falling area are also arranged above the workbench; the working end of the mechanical arm is provided with a camera mounting part and a suction nozzle mounting part, the camera mounting part is used for mounting an industrial camera, the suction nozzle mounting part is used for mounting a plurality of groups of suction nozzles, and the directions of lenses of the industrial camera and the plurality of groups of suction nozzles are the same; the mechanical arm is used for controlling the movement of the camera mounting part and the suction nozzle mounting part, the industrial camera is used for shooting images of the wireless earphone, and each group of suction nozzles is used for sucking one wireless earphone; a plurality of first accommodating grooves are formed on the material taking area; the rotating area comprises a plurality of rotating bases, a containing piece is arranged above each rotating base, and a second containing groove is formed in each containing piece; the drop zone comprises a plurality of test barrels, and the inside bottom of each test barrel is provided with a lifting platform.
Description
Technical Field
The invention relates to the field of drop test, in particular to a method and a device for drop test of a wireless earphone.
Background
With the progress of technology, wireless headphones are gradually replacing wired headphones due to the convenience and high performance of the wireless headphones. This has also led to an increasing market for wireless headsets, and many smart device manufacturers have begun to develop their own brands of wireless headsets. In order to examine the capability of the product to resist accidental impact due to accidental falling of the earphone during use, a falling test is required in the production process of the wireless earphone and the matched product of the wireless earphone, and the falling height is usually used as a reference standard according to the weight of the product and the possible falling probability, and the falling surface is made of a smooth and hard rigid surface made of steel. The earphone drop test equipment is special equipment for detecting the test product, and whether the shell and the internal components of the product reach the standards is checked by repeating drop of the earphone drop test equipment for a plurality of times.
At present, a manual test mode is generally adopted to carry out earphone drop test, so that the mode is troublesome, manpower is wasted, and subjectivity is strong when a test result is obtained. In addition, some existing earphone drop test devices exist in the market, but the existing earphone drop test devices can generally test only one group at a time, when a comparison drop test is needed, the operation is inconvenient, the consistency of two test environments is not guaranteed due to the two tests, and the comparison accuracy is not facilitated; the orientation state of the test product when released is identical, and the collision between the test product and the drop surface is single, so that the drop test result of the test product has limited significance; the falling height of the device is manually adjusted, the adjusting efficiency is low and inaccurate, the operating efficiency is low, the manual watching height is generally needed to test different heights, the adjusting process is time-consuming and labor-consuming, and the operating difficulty is increased; the automation degree of the equipment is not high, the visual detection capability is low, and in the testing process, the normal running of the test is affected or the accuracy of the test data is reduced possibly because of special conditions such as incorrect suction of the earphone or falling off and standing of the earphone.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a wireless earphone drop test method, which adopts a wireless earphone drop test device comprising a workbench, an industrial personal computer and a mechanical arm, and comprises the following steps:
s1, presetting required drop test requirement data, wireless earphone template data and related parameters in an industrial personal computer;
s2, the industrial personal computer controls the mechanical arm to work, so that the mechanical arm drives a plurality of groups of suction nozzles at the working end of the mechanical arm to move to a material taking area on the workbench, and a plurality of wireless earphones to be tested are sucked through the suction nozzles;
S3, the mechanical arm drives the wireless earphone to be tested to move to a rotating area on the workbench, and then the suction nozzle is loosened, so that a plurality of wireless earphones to be tested are respectively placed in the accommodating pieces on a plurality of rotating platforms on the rotating area;
s4, the mechanical arm drives an industrial camera at the working end to move, images of one surface of a plurality of wireless earphones to be tested in the rotating area are respectively taken, and image information is transmitted to the industrial personal computer;
s5, the industrial personal computer compares the shot surface images of the wireless earphones to be detected with the pre-stored template images by utilizing a positive and negative detection algorithm to judge whether the orientation of each wireless earphone to be detected meets the preset requirement, and if the wireless earphones to be detected which do not meet the requirement exist, the corresponding rotating platform is rotated by 180 degrees until the orientation of each wireless earphone to be detected meets the requirement;
S6, the mechanical arm drives the plurality of groups of suction nozzles to absorb the plurality of wireless earphones to be detected again, the plurality of wireless earphones to be detected are conveyed to the position above the falling area on the workbench, and each wireless earphone to be detected is located at a preset angle and at a preset height;
S7, loosening a plurality of groups of suction nozzles to enable each wireless earphone to be tested to fall into a plurality of test cylinders in a falling area respectively;
s8, after falling, the lifting platform in each test cylinder works to lift the plurality of wireless earphones to be tested to a preset height;
S9, the industrial camera respectively collects images of a plurality of wireless headphones to be tested and transmits image information to the industrial personal computer;
S10, processing the image acquired in the step S9 by using an image processing algorithm, comparing the image with a pre-stored template image, judging that an abnormality exists and sending prompt information if the similarity difference between the processed wireless earphone image to be detected and the pre-stored template image is larger than a preset threshold value, stopping the current flow, waiting for manual processing, and entering the step S11 if the abnormality does not exist;
s11, the mechanical arm drives the plurality of groups of suction nozzles to absorb the plurality of wireless earphones to be tested again, and the lifting platform of the test cylinder drops to the initial position of the bottom end after the absorption is completed;
s12, according to preset drop test requirements, if all preset drop test operations are completed, conveying the plurality of tested wireless earphones to an external production line, ending all the processes, and if other drop test operations are required to be carried out on the plurality of wireless earphones, returning to the step S3 until all preset drop test operations are completed.
In some embodiments, step S10 specifically includes the following steps:
And (3) preprocessing the image of the wireless earphone to be detected acquired in the step (S9), extracting the area where the wireless earphone is located in each image through an image segmentation and edge processing algorithm, calculating to obtain the area of the wireless earphone, judging whether the calculated area data is in a preset area threshold range, stopping the current flow and sending recognition abnormal prompt information if the area data which is not in the preset area threshold range exists, and entering the step (S11) if the area data corresponding to each image is in the preset area threshold range.
In some embodiments, in step S10, if the area data corresponding to each image is within the preset area threshold, the following steps are further performed before step S11:
Obtaining a center point and an offset angle of each wireless earphone by using the extracted area of the wireless earphone in each image;
In step S11, the industrial personal computer calculates the corresponding suction position and suction angle by using the obtained center point and offset angle of each wireless earphone, and then controls the movement of the mechanical arm and suction nozzle to suck a plurality of wireless earphones according to the calculated suction positions and suction angles
The invention further provides a wireless earphone drop test device, which adopts the wireless earphone drop test method and comprises a workbench, an industrial personal computer and a mechanical arm;
the industrial personal computer is used for controlling the wireless earphone drop test device to work;
The base of the mechanical arm is fixedly arranged above the workbench, and a material taking area, a rotating area and a falling area are also arranged above the workbench;
The working end of the mechanical arm is provided with a camera mounting part and a suction nozzle mounting part, the camera mounting part is used for mounting an industrial camera, the suction nozzle mounting part is used for mounting a plurality of groups of suction nozzles, and the directions of lenses of the industrial camera and the plurality of groups of suction nozzles are the same;
the mechanical arm is used for controlling the movement of the camera installation part and the suction nozzle installation part, the industrial camera is used for shooting images of the wireless earphone, and each group of suction nozzles is used for sucking one wireless earphone;
a plurality of first accommodating grooves are formed in the material taking area;
The rotating area comprises a plurality of rotating bases, a containing piece is arranged above each rotating base, and a second containing groove is formed in each containing piece;
The drop zone comprises a plurality of test barrels, and the inner bottom end of each test barrel is provided with a lifting platform.
In some embodiments, the first receiving slot has a size and shape corresponding to a size and shape of the wireless headset when the wireless headset is in a flat position, and the second receiving slot has a size and shape corresponding to a size and shape of the wireless headset when the wireless headset is in a stand position.
In some embodiments, the middle of the front and rear ends of the receiving member are formed with a U-shaped notch.
In some embodiments, the number of the first accommodating grooves, the second accommodating grooves and the test cylinders is the same as the number of the groups of the suction nozzles, the suction nozzles are arranged side by side and equidistantly, the first accommodating grooves are arranged side by side and equidistantly, the second accommodating grooves are arranged side by side and equidistantly, and the test cylinders are arranged side by side and equidistantly.
In some embodiments, the number of the first accommodating groove, the second accommodating groove and the test cylinder and the number of the groups of the suction nozzles are three.
In some embodiments, the industrial camera is provided with a white annular light source in front of the lens.
Compared with the prior art, the invention has the beneficial effects that:
The wireless earphone drop test method and the device provided by the invention can automatically realize the drop test of the wireless earphone, and compared with the traditional manual test mode, the wireless earphone drop test method and the device greatly reduce the workload of staff; compared with the existing earphone drop test equipment, the mechanical arm, the material taking area, the rotating area and the drop area are reasonably arranged on the workbench, multiple functions can be realized by combining related algorithms, a plurality of wireless earphones can be detected at the same time, and the test efficiency and experimental significance are improved; the structural characteristics of the invention determine that the invention can be flexibly arranged on an automatic production line, and is suitable for the construction of intelligent factories, unmanned production lines and the like in the future.
Drawings
Fig. 1 is a schematic flow chart of a wireless earphone drop test method provided by the invention;
fig. 2 is a schematic top view of the wireless earphone drop test device provided by the present invention;
FIG. 3 is a schematic illustration of a robotic arm and associated structure;
fig. 4 is a schematic view of a receptacle.
Reference numerals illustrate: 1. a work table; 2. a mechanical arm; 3. a material taking area; 4. a rotation region; 5. a drop zone; 6. a camera mounting section; 7. a suction nozzle mounting portion; 31. a first receiving groove; 41. a receiving member; 42. a second accommodating groove; 43. a rotating base; 51. a test cartridge; 61. an industrial camera; 71. and (5) a suction nozzle.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present invention easy to understand, the following further describes how the present invention is implemented with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, a wireless earphone drop test method adopts a wireless earphone drop test device comprising a workbench 1, an industrial personal computer and a mechanical arm 2, and comprises the following steps:
s1, presetting required drop test requirement data, wireless earphone template data and related parameters in an industrial personal computer;
s2, the industrial personal computer controls the mechanical arm 2 to work, so that the mechanical arm 2 drives a plurality of groups of suction nozzles 71 at the working end of the mechanical arm to move to a material taking area 3 on the workbench 1, and a plurality of wireless earphones to be tested are sucked through the suction nozzles 71;
S3, the mechanical arm 2 drives the wireless earphone to be tested to move to a rotating area 4 on the workbench 1, and then the suction nozzle 71 is loosened, so that a plurality of wireless earphones to be tested are respectively placed in the accommodating pieces 41 on a plurality of rotating platforms 43 on the rotating area 4;
s4, the mechanical arm 2 drives an industrial camera 61 at the working end to move, images of one surface of a plurality of wireless earphones to be tested in the rotating area 4 are respectively taken, and image information is transmitted to the industrial personal computer;
S5, the industrial personal computer compares the photographed surface image of the wireless earphone to be tested with a pre-stored template image by utilizing a positive and negative detection algorithm to judge whether the orientation of each wireless earphone to be tested meets the preset requirement, and if the wireless earphone to be tested which does not meet the requirement exists, the corresponding rotating platform 43 is rotated by 180 degrees until the orientation of each wireless earphone to be tested meets the requirement;
s6, the mechanical arm 2 drives the plurality of groups of suction nozzles 71 to absorb the plurality of wireless earphones to be detected again, and conveys the plurality of wireless earphones to be detected to the position above the falling area 5 on the workbench 1, and each wireless earphone to be detected is located at a preset angle and height;
S7, loosening a plurality of groups of suction nozzles 71 to enable each wireless earphone to be tested to fall into a plurality of test cylinders 51 of the falling area 5 respectively;
s8, after falling, the lifting platform in each test cylinder 51 works to lift a plurality of wireless earphones to be tested to a preset height;
s9, the industrial camera 61 respectively collects images of a plurality of wireless earphones to be tested and transmits image information to the industrial personal computer;
S10, processing the image acquired in the step S9 by using an image processing algorithm, comparing the image with a pre-stored template image, judging that an abnormality exists and sending prompt information if the similarity difference between the processed wireless earphone image to be detected and the pre-stored template image is larger than a preset threshold value, stopping the current flow, waiting for manual processing, and entering the step S11 if the abnormality does not exist;
s11, the mechanical arm 2 drives the plurality of groups of suction nozzles 71 to absorb a plurality of wireless earphones to be tested again, and the lifting platform of the test cylinder 51 drops to the initial position of the bottom end after the absorption is completed;
s12, according to preset drop test requirements, if all preset drop test operations are completed, conveying the plurality of tested wireless earphones to an external production line, ending all the processes, and if other drop test operations are required to be carried out on the plurality of wireless earphones, returning to the step S3 until all preset drop test operations are completed.
Further, in step S10, the method specifically includes the following steps:
And (3) preprocessing the image of the wireless earphone to be detected acquired in the step (S9), extracting the area where the wireless earphone is located in each image through an image segmentation and edge processing algorithm, calculating to obtain the area of the wireless earphone, judging whether the calculated area data is in a preset area threshold range, stopping the current flow and sending recognition abnormal prompt information if the area data which is not in the preset area threshold range exists, and entering the step (S11) if the area data corresponding to each image is in the preset area threshold range.
Further, in step S10, if the area data corresponding to each image is within the preset area threshold, before entering step S11, the following steps are further performed:
Obtaining a center point and an offset angle of each wireless earphone by using the extracted area of the wireless earphone in each image;
in step S11, the industrial personal computer calculates the corresponding suction position and suction angle by using the obtained center point and offset angle of each wireless earphone, and then controls the movement of the mechanical arm 2 and the suction nozzle 71 to suck a plurality of wireless earphones according to the calculated suction position and suction angle.
Therefore, the wireless earphone drop test method provided by the invention can accurately read the information such as the position, the deflection angle and the like of the wireless earphone in the test, greatly enhance the accuracy of sucking the earphone wireless machine in the test, detect the abnormal condition (such as falling, falling and standing) possibly existing back in the test of the wireless earphone and send error information, and increase the stability of the equipment test. Compared with the traditional manual detection mode and other mechanical detection modes, the method greatly reduces the workload of staff, improves the economic benefit of enterprises, and can adapt to the detection of various wireless earphones as long as corresponding wireless earphone templates are made, and the detection precision is flexible and adjustable.
Referring to fig. 2-4, the present invention further provides a wireless earphone drop test device, which adopts the wireless earphone drop test method described above, and includes a workbench 1, an industrial personal computer, and a mechanical arm 2; the industrial personal computer is used for controlling the wireless earphone drop test device to work; the base of the mechanical arm 2 is fixedly arranged above the workbench 1, and a material taking area 3, a rotating area 4 and a falling area 5 are also arranged above the workbench 1; the working end of the mechanical arm 2 is provided with a camera mounting part 6 and a suction nozzle mounting part 7, the camera mounting part 6 is used for mounting the industrial camera 61, the suction nozzle mounting part 7 is used for mounting a plurality of groups of suction nozzles 71, and the directions of lenses of the industrial camera 61 and the plurality of groups of suction nozzles 71 are the same; the mechanical arm 2 is used for controlling the movement of the camera mounting part 6 and the suction nozzle mounting part 7, the industrial camera 61 is used for shooting images of the wireless earphone, and each group of suction nozzles 71 is used for sucking one wireless earphone; the material taking area 3 is provided with a plurality of first accommodating grooves 31; the rotating area 4 comprises a plurality of rotating bases 43, a containing piece 41 is arranged above each rotating base 43, and a second containing groove 42 is formed on each containing piece 41; the drop zone 5 comprises a plurality of test cartridges 51, and the inner bottom end of each test cartridge 51 is provided with a lifting platform.
It will be appreciated that the industrial personal computer may also be disposed on the workstation 1, or disposed below the workstation 1, or disposed in other areas outside the workstation 1, so long as the electrical connection between the industrial personal computer and each controlled device is ensured. In addition, the industrial personal computer can be connected with each controlled device in a wired mode through the hub. An industrial control panel connected with an industrial control computer can be arranged on the workbench 1 or outside the workbench 1, so that the work debugging of workers is facilitated.
In addition, referring to fig. 3, the mechanical arm 2 may adopt a conventional mechanical arm structure, so long as it can ensure that the end (i.e., the working end) thereof can move within a desired range under the control of the industrial personal computer 1. The camera mounting part 6 can be fixed on a shaft at the tail end of the mechanical arm 2 so as to carry out translational movement and rotation along with the tail end of the mechanical arm 2; the suction nozzle mounting portion 7 is fixed to the other side of the camera mounting portion 6 to move together therewith. Each set of suction nozzles 71 can be fixedly mounted on the suction nozzle mounting portion 7 through a rotating shaft structure, and is provided with a corresponding motor, so that each set of suction nozzles 71 can rotate.
Preferably, the size and shape of the first receiving groove 31 corresponds to the size and shape of the wireless headset when the wireless headset is in a flat position, and the size and shape of the second receiving groove 42 corresponds to the size and shape of the wireless headset when the wireless headset is in a standing position. In addition, the size of the test cartridge 51 may be slightly larger than the size of the wireless headset. Through the arrangement, special conditions such as improper earphone suction or falling and standing after falling are not easy to occur in the test process, the normal test is facilitated, and the accuracy of test data is provided
Further, referring to fig. 4, U-shaped notches are formed at the middle portions of the front and rear ends of the receiving member 41 to facilitate the automatic placement of the wireless earphone into the second receiving groove 42, and to enable the middle portions of the two main surfaces of the wireless earphone to be exposed when the wireless earphone is placed in the second receiving groove 42, so that the wireless earphone can be photographed by the industrial camera 61.
Preferably, the number of the first accommodating grooves 31, the second accommodating grooves 42 and the test cylinders 51 is the same as the number of the groups of the suction nozzles 71, the groups of the suction nozzles 71 are arranged side by side and equidistantly, the plurality of first accommodating grooves 31 are arranged side by side and equidistantly, the plurality of second accommodating grooves 42 are arranged side by side and equidistantly, and the plurality of test cylinders 51 are arranged side by side and equidistantly. With such an arrangement, it is possible to easily realize drop tests of a plurality of wireless headphones simultaneously by the plurality of sets of suction nozzles 71.
In the illustrated embodiment, the number of the first receiving grooves 31, the second receiving grooves 42, and the test cartridges 51 and the number of the groups of the suction nozzles 71 are three.
Preferably, the industrial camera 61 is provided with a white ring light source 62 in front of the lens. In addition, the surface color of the lifting platform of the test cylinder 51 is preferably black, and the lifting platform is matched with the white annular light source 62, so that the industrial camera 61 can acquire clear and bright images, and the complexity and difficulty of subsequent processing are reduced
In one embodiment, the working principle of the invention is as follows: in the initial condition, the three wireless earphones are respectively horizontally placed into the three first accommodating grooves 31 of the material taking area 3 through front-end equipment or manual operation; next, the industrial personal computer 1 controls the mechanical arm 2 to work, so that the mechanical arm 2 drives the three groups of suction nozzles 71 to move to preset positions, three wireless earphones in the three first accommodating grooves 31 are respectively sucked, then the three wireless earphones respectively reach and stand in the three second accommodating grooves 42 through translational movement and rotation, and then the suction nozzles 71 are loosened; then, the industrial personal computer 1 controls the white annular light source 62 to be turned on, the industrial camera 61 collects images of one surface of the three wireless earphones and transmits the collected images to the industrial personal computer 1, the industrial personal computer judges whether the orientation of each wireless earphone meets the preset requirement through a preset positive and negative detection algorithm, and if not, the corresponding rotating base 43 is controlled to rotate 180 degrees; after the orientations of the three wireless earphones meet the requirements, automatically controlling the three groups of suction nozzles 71 to suck the three wireless earphones again, respectively reaching the preset height and angle above the three test cylinders 51, and then loosening the suction nozzles 71 to enable the three wireless earphones to fall into the three test cylinders 51 respectively; after the falling is finished, the lifting platform of the test cylinder 51 works to lift the three wireless earphones to a preset height so as to be convenient for photographing and sucking the wireless earphones again; then, the white annular light source 62 is turned on again, and the industrial camera 61 respectively collects images of the three wireless earphones so as to facilitate subsequent automatic or manual detection; after that, three wireless headphones are sucked again by the robot arm 2 and the three sets of suction nozzles 71, and the lifting platform of the test cartridge 51 is lowered to the initial position of the bottom end after the suction is completed. After that, if all preset drop test operations are completed, the three wireless earphones are directly conveyed to an external production line; if the wireless earphone is required to be subjected to drop test in other directions, heights or angles, the operations of steering, dropping, photographing and the like of the wireless earphone are finished again according to the steps similar to the steps until all preset drop test operations are finished.
In conclusion, the wireless earphone drop test method and device provided by the invention can automatically realize the drop test of the wireless earphone, and compared with the traditional manual test mode, the wireless earphone drop test method and device greatly lighten the workload of staff; compared with the existing earphone drop test equipment, the mechanical arm, the material taking area, the rotating area and the drop area are reasonably arranged on the workbench, multiple functions can be realized by combining related algorithms, a plurality of wireless earphones can be detected at the same time, and the test efficiency and experimental significance are improved; the structural characteristics of the invention determine that the invention can be flexibly arranged on an automatic production line, and is suitable for the construction of intelligent factories, unmanned production lines and the like in the future.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (5)
1. The wireless earphone drop test method is characterized by adopting a wireless earphone drop test device comprising a workbench (1), an industrial personal computer and a mechanical arm (2), and comprising the following steps:
s1, presetting required drop test requirement data, wireless earphone template data and related parameters in an industrial personal computer;
s2, the industrial personal computer controls the mechanical arm (2) to work, so that the mechanical arm (2) drives a plurality of groups of suction nozzles (71) at the working end of the mechanical arm to move to a material taking area (3) on the workbench (1), and a plurality of wireless earphones to be tested are sucked through the suction nozzles (71);
s3, the mechanical arm (2) drives the wireless earphone to be tested to move to a rotating area (4) on the workbench (1), and then the suction nozzle (71) is loosened, so that a plurality of wireless earphones to be tested are respectively placed in the accommodating pieces (41) on a plurality of rotating platforms (43) on the rotating area (4);
S4, the mechanical arm (2) drives an industrial camera (61) at the working end of the mechanical arm to move, images of one surface of a plurality of wireless earphones to be tested in the rotating area (4) are respectively taken, and image information is transmitted to the industrial personal computer;
S5, the industrial personal computer compares the photographed surface image of the wireless earphone to be detected with a pre-stored template image by utilizing a positive and negative detection algorithm to judge whether the orientation of each wireless earphone to be detected meets the preset requirement, and if the wireless earphone to be detected which does not meet the requirement exists, the corresponding rotating platform (43) rotates 180 degrees until the orientation of each wireless earphone to be detected meets the requirement;
S6, the mechanical arm (2) drives the plurality of groups of suction nozzles (71) to absorb the plurality of wireless earphones to be detected again, the plurality of wireless earphones to be detected are conveyed to the position above the falling area (5) on the workbench (1), and each wireless earphone to be detected is located at a preset angle and at a preset height;
s7, loosening a plurality of groups of suction nozzles (71) to enable each wireless earphone to be tested to fall into a plurality of test cylinders (51) of the falling area (5) respectively;
s8, after falling, the lifting platform in each test cylinder (51) works to lift a plurality of wireless earphones to be tested to a preset height;
s9, respectively acquiring images of a plurality of wireless headphones to be tested by the industrial camera (61), and transmitting image information to the industrial personal computer;
S10, processing the image acquired in the step S9 by using an image processing algorithm, comparing the image with a pre-stored template image, judging that an abnormality exists and sending prompt information if the similarity difference between the processed wireless earphone image to be detected and the pre-stored template image is larger than a preset threshold value, stopping the current flow, waiting for manual processing, and entering the step S11 if the abnormality does not exist;
S11, the mechanical arm (2) drives the plurality of groups of suction nozzles (71) to absorb a plurality of wireless earphones to be tested again, and the lifting platform of the test cylinder (51) drops to the initial position of the bottom end after the absorption is completed;
S12, according to preset drop test requirements, if all preset drop test operations are completed, conveying a plurality of tested wireless earphones to an external production line, ending all the processes, and if other drop test operations are required to be carried out on the plurality of wireless earphones, returning to the step S3 until all preset drop test operations are completed;
The step S10 specifically includes the following steps:
The method comprises the steps that an image of a wireless earphone to be detected, which is acquired in the step S9, is preprocessed, an area where the wireless earphone is located in each image is extracted through an image segmentation and edge processing algorithm, then the area of the wireless earphone is calculated, whether the calculated area data is in a preset area threshold range or not is judged, if area data which is not in the preset area threshold range exists, the current flow is stopped, abnormal prompt information is sent and identified, and if the area data corresponding to each image is in the preset area threshold range, the step S11 is entered;
in step S10, if the area data corresponding to each image is within the preset area threshold range, before entering step S11, the method further includes the following steps:
Obtaining a center point and an offset angle of each wireless earphone by using the extracted area of the wireless earphone in each image;
in step S11, the industrial personal computer calculates a corresponding suction position and suction angle by using the obtained center point and offset angle of each wireless earphone, and then controls the movement of the mechanical arm (2) and the suction nozzle (71) to suck a plurality of wireless earphones according to the calculated suction positions and suction angles.
2. The wireless earphone drop test device is characterized by adopting the wireless earphone drop test method according to claim 1, and comprising a workbench (1), an industrial personal computer and a mechanical arm (2);
the industrial personal computer is used for controlling the wireless earphone drop test device to work;
The base of the mechanical arm (2) is fixedly arranged above the workbench (1), and a material taking area (3), a rotating area (4) and a falling area (5) are further arranged above the workbench (1);
the working end of the mechanical arm (2) is provided with a camera mounting part (6) and a suction nozzle mounting part (7), the camera mounting part (6) is used for mounting an industrial camera (61), the suction nozzle mounting part (7) is used for mounting a plurality of groups of suction nozzles (71), and the directions of lenses of the industrial camera (61) and the plurality of groups of suction nozzles (71) are the same;
The mechanical arm (2) is used for controlling the movement of the camera mounting part (6) and the suction nozzle mounting part (7), the industrial camera (61) is used for shooting images of the wireless earphone, and each group of suction nozzles (71) is used for sucking one wireless earphone;
a plurality of first accommodating grooves (31) are formed in the material taking area (3);
The rotating area (4) comprises a plurality of rotating bases (43), a containing piece (41) is arranged above each rotating base (43), and a second containing groove (42) is formed in each containing piece (41);
The drop zone (5) comprises a plurality of test barrels (51), and the inner bottom end of each test barrel (51) is provided with a lifting platform;
The size and the shape of the first accommodating groove (31) correspond to those of the wireless earphone when the wireless earphone is horizontally placed, and the size and the shape of the second accommodating groove (42) correspond to those of the wireless earphone when the wireless earphone is vertically placed;
The number of the first accommodating grooves (31), the number of the second accommodating grooves (42) and the number of the test cylinders (51) are the same as the number of the groups of the suction nozzles (71), the suction nozzles (71) are arranged side by side and equidistantly, the first accommodating grooves (31) are arranged side by side and equidistantly, the second accommodating grooves (42) are arranged side by side and equidistantly, and the test cylinders (51) are arranged side by side and equidistantly.
3. The wireless earphone drop test device according to claim 2, wherein a U-shaped notch is formed in the middle of the front and rear ends of the housing member (41).
4. The wireless earphone drop test device according to claim 2, wherein the number of the first receiving groove (31), the second receiving groove (42) and the test cartridge (51) and the number of the groups of the suction nozzles (71) are three.
5. The wireless headset drop test device according to claim 2, wherein a white ring light source (62) is provided in front of the lens of the industrial camera (61).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210094122.6A CN114544130B (en) | 2022-01-26 | 2022-01-26 | Wireless earphone drop test method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210094122.6A CN114544130B (en) | 2022-01-26 | 2022-01-26 | Wireless earphone drop test method and device |
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| CN114544130A CN114544130A (en) | 2022-05-27 |
| CN114544130B true CN114544130B (en) | 2024-05-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206930422U (en) * | 2017-06-28 | 2018-01-26 | 厦门攸信信息技术有限公司 | One kind circulation drop test device |
| CN111458095A (en) * | 2020-04-15 | 2020-07-28 | 京东方科技集团股份有限公司 | Drop test device and method thereof |
| WO2021227252A1 (en) * | 2020-05-12 | 2021-11-18 | 歌尔股份有限公司 | Automatic rotation drop test machine |
| CN216955067U (en) * | 2022-01-26 | 2022-07-12 | 武汉纺织大学 | Wireless earphone drop test device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11441983B2 (en) * | 2020-07-01 | 2022-09-13 | Uatc, Llc | Systems and methods for optimizing drop test configurations |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206930422U (en) * | 2017-06-28 | 2018-01-26 | 厦门攸信信息技术有限公司 | One kind circulation drop test device |
| CN111458095A (en) * | 2020-04-15 | 2020-07-28 | 京东方科技集团股份有限公司 | Drop test device and method thereof |
| WO2021227252A1 (en) * | 2020-05-12 | 2021-11-18 | 歌尔股份有限公司 | Automatic rotation drop test machine |
| CN216955067U (en) * | 2022-01-26 | 2022-07-12 | 武汉纺织大学 | Wireless earphone drop test device |
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