Code scanning device and photovoltaic module verification equipment with same

Abstract

The utility model relates to the technical field of photovoltaic production, and discloses a code scanning device and photovoltaic module verification equipment with the same. The code scanning device comprises a first code scanning unit of which the code scanning end is suitable for facing a glass surface of a photovoltaic module; the code scanning end of the second code scanning unit is suitable for facing the back plate surface of the photovoltaic module; the code scanning end of the third code scanning unit is suitable for facing the frame of the photovoltaic module; the delayer is in communication connection with the first code scanning unit, the second code scanning unit and the third code scanning unit, and the delayer is suitable for receiving code scanning information corresponding to the first code scanning unit, the second code scanning unit and the third code scanning unit and sending the code scanning information corresponding to different code scanning units to a code scanning system in different time periods. According to the utility model, the delayer is in communication connection with the first code scanning unit, the second code scanning unit and the third code scanning unit, so that mutual interference of signals sent to the code scanning system is avoided, the code scanning system can correctly identify three bar codes, and normal code scanning operation is ensured.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic production technology, specifically to a barcode scanning device and a photovoltaic module verification device having the same. Background Technology

[0002] In the manufacturing process of photovoltaic modules, to ensure the quality of the modules, multiple testing processes are required to prevent defects in the cell strings from affecting the performance of the solar modules. To distinguish and preserve photos of each module during each testing process, related technologies require each module to be affixed with three identical barcodes: a barcode on the glass surface, a barcode on the back, and a barcode on the edge. The modules are scanned at each inspection stage for easy traceability.

[0003] In existing technologies, when scanning three barcodes simultaneously, there is a situation where signals interfere with each other, causing the barcode scanning system to be unable to recognize the barcodes, thus failing to guarantee the normal operation of the scanning process. Utility Model Content

[0004] In view of this, the present invention provides a barcode scanning device and a photovoltaic module verification device having the same, to solve the problem that the barcode scanning system cannot recognize multiple barcodes when they are scanned at the same time.

[0005] In a first aspect, embodiments of the present invention provide a barcode scanning device, comprising:

[0006] The first scanning unit has its scanning end adapted to face the glass surface of the photovoltaic module;

[0007] The second scanning unit has its scanning end adapted to face the back panel of the photovoltaic module;

[0008] The third scanning unit has a scanning end that is adapted to face the frame of the photovoltaic module;

[0009] A delay unit is communicatively connected to the first scanning unit, the second scanning unit, and the third scanning unit. The delay unit is adapted to receive scanning information corresponding to the first scanning unit, the second scanning unit, and the third scanning unit, and to send the scanning information corresponding to different scanning units to the scanning system at different time periods.

[0010] Beneficial effects: By setting up a timer and establishing communication connections between the first, second, and third scanning units, these units simultaneously scan barcodes at different locations on the photovoltaic module and send the scanned information to the timer. An extender then transmits the three scanned information messages to the scanning system at different time intervals. This avoids signal interference between the signals sent to the scanning system, ensuring the system can correctly identify the three barcodes and guaranteeing normal scanning operation.

[0011] Optionally, the delay unit is a first delay unit, which is communicatively connected to the first scanning unit, the second scanning unit, and the third scanning unit;

[0012] The first delay unit is adapted to have three transmission periods, which correspond one-to-one with the first scanning unit, the second scanning unit, and the third scanning unit, respectively.

[0013] Beneficial effects: A first delay unit is set up to receive the scanning information from the first scanning unit, the second scanning unit, and the third scanning unit, and send the three scanning information to the scanning system at different time periods, thereby avoiding mutual interference between the signals of the scanning system, enabling the scanning system to correctly identify the three barcodes, and ensuring the normal operation of the scanning operation.

[0014] Optionally, the delay unit includes three second delay units, each of which is communicatively connected to the first scanning unit, the second scanning unit, and the third scanning unit respectively.

[0015] Each of the second delay units has an independent delay period, and the delay periods of the three second delay units are not the same.

[0016] Beneficial effects: By setting up three second delay units, which are used to receive scanning information from different scanning units and send the three scanning information to the scanning system at different times, the signals of the scanning system are prevented from interfering with each other, so that the scanning system can correctly identify the three barcodes and ensure that the scanning operation is carried out normally.

[0017] Optionally, the delay includes:

[0018] The signal receiving module is communicatively connected to the first scanning unit, the second scanning unit, and the third scanning unit.

[0019] The delay control module is communicatively connected to the signal receiving module and is adapted to set the delay period;

[0020] The signal transmitting module is communicatively connected to the delay control module, and the signal transmitting module is adapted to send the scanning information to the scanning system according to the control command of the delay control module.

[0021] Beneficial effects: The signal receiving module is used to receive scanning information. By using the delay control module and the signal sending module in conjunction, different scanning information is sent to the scanning system at different times, thereby avoiding mutual interference between the signals of the scanning system.

[0022] Optionally, it also includes three support mechanisms, which are respectively connected to the first scanning unit, the second scanning unit and the third scanning unit.

[0023] Beneficial effects: Three support mechanisms are set up to support the first, second, and third scanning units respectively, so that the first, second, and third scanning units are located in preset positions to align with the barcodes on the photovoltaic modules, facilitating the scanning and collection of barcode information.

[0024] Optionally, the support mechanism includes:

[0025] Base;

[0026] The support arm has one end connected to the base and the other end connected to one of the first scanning unit, the second scanning unit, and the third scanning unit.

[0027] Beneficial effects: One end of the support arm is connected to the base, and the other end is connected to the scanning unit, thereby achieving effective support for the first, second and third scanning units.

[0028] Optionally, the support arm includes:

[0029] A first connecting arm has a first connecting portion between one end of its arm and the base, and the first connecting arm is adapted to rotate relative to the base in a first plane via the first connecting portion.

[0030] The second connecting arm is provided with a second connecting part between the other end of the first connecting arm and the second connecting arm. The second connecting arm is adapted to rotate relative to the first connecting arm in a second plane through the second connecting part. The other end of the second connecting arm is connected to one of the first scanning unit, the second scanning unit and the third scanning unit.

[0031] The first plane is perpendicular to the second plane.

[0032] Beneficial effects: The first connecting arm can rotate along the first plane under the action of the first connecting part, and the second connecting arm can rotate along the second plane under the action of the second connecting part. This makes the position of the scanning unit at the end of the second connecting arm adjustable. The scanning unit can be adaptively adjusted according to the size and specifications of the photovoltaic module and the position of the barcode on the photovoltaic module, thereby facilitating the use of the first, second, and third scanning units.

[0033] Optionally, the first scanning unit includes a first barcode scanner;

[0034] And / or, the second scanning unit includes a second barcode scanner;

[0035] And / or, the third scanning unit includes a third barcode scanner.

[0036] Beneficial effect: Setting the first, second, and third scanning units as barcode scanners facilitates barcode scanning operations.

[0037] Secondly, this utility model provides a photovoltaic module verification device, including the barcode scanning device described in any one of the above-mentioned embodiments.

[0038] Beneficial effects: The barcode scanning device of this photovoltaic module verification equipment is equipped with a timer, which is communicatively connected to the first, second, and third scanning units. These three units simultaneously scan the barcodes at different locations on the photovoltaic module and send the scanned information to the timer. The timer then extends the timer to send the three scanned barcodes to the scanning system at different time intervals. This avoids signal interference to the scanning system, ensuring that the system can correctly identify the three barcodes and guaranteeing the normal operation of the scanning process.

[0039] Optionally, it also includes:

[0040] The outer frame, on which the first scanning unit, the second scanning unit and the third scanning unit are all disposed;

[0041] A conveying unit is disposed within the outer frame, the outer frame being adapted to convey photovoltaic modules.

[0042] Beneficial effects: The conveying unit facilitates the transport of photovoltaic modules. The first, second, and third scanning units are set on the outer frame, which facilitates the fixing of the positions of the first, second, and third scanning units and the alignment of their scanning ends with the barcodes on the photovoltaic modules, thus achieving effective scanning operations. Attached Figure Description

[0043] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram showing the positional relationship between the barcode scanning device and the outer frame in an embodiment of the present invention;

[0045] Figure 2 This is a schematic diagram illustrating the usage of the first delay device according to an embodiment of the present invention;

[0046] Figure 3 This is a schematic diagram illustrating the usage of the second delay device according to an embodiment of the present invention;

[0047] Figure 4 This is a schematic diagram illustrating the usage of the delay device according to an embodiment of the present utility model;

[0048] Figure 5 This is a schematic diagram showing the positional relationship between the first scanning unit and the glass surface in an embodiment of the present invention;

[0049] Figure 6 This is a schematic diagram showing the positional relationship between the second scanning unit and the back panel in an embodiment of the present invention;

[0050] Figure 7 This is a schematic diagram showing the positional relationship between the third scanning unit and the border in an embodiment of this utility model;

[0051] Figure 8 This is a schematic diagram of the support mechanism according to an embodiment of the present utility model;

[0052] Figure 9 This is a schematic diagram of a specific embodiment of the first connecting part and the second connecting part of this utility model.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. First scanning unit; 2. Second scanning unit; 3. Third scanning unit; 4. Glass surface; 5. Back panel; 6. Frame;

[0055] 7. Extender; 701. First delay unit; 702. Second delay unit; 703. Signal receiving module; 704. Delay control module; 705. Signal transmitting module;

[0056] 8. Base; 9. Support arm; 901. First connecting arm; 902. Second connecting arm; 10. First connecting part;

[0057] 11. Second connecting part; 111. First connecting block; 112. Second connecting block;

[0058] 12. Outer frame; 13. Conveying unit; 14. Scanning system; 15. Fixing column; 16. Connecting column; 17. Fastening nut; 18. Perforation. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0060] Please refer to Figures 1-9 In a first aspect, embodiments of the present invention provide a barcode scanning device, comprising: a first barcode scanning unit 1, the scanning end of which is adapted to face the glass surface 4 of a photovoltaic module; a second barcode scanning unit 2, the scanning end of which is adapted to face the back panel surface 5 of the photovoltaic module; and a third barcode scanning unit 3, the scanning end of which is adapted to face the frame 6 of the photovoltaic module.

[0061] In this embodiment, refer to Figure 5 , Figure 6 , Figure 7 The first scanning unit 1 is used to scan and obtain the barcode information on the glass surface 4 of the photovoltaic module, the second scanning unit 2 is used to scan and obtain the barcode information on the back panel 5 of the photovoltaic module, and the third scanning unit 3 is used to scan and obtain the barcode information on the frame 6 of the photovoltaic module, so as to realize the scanning of barcodes at different positions of the photovoltaic module and determine whether the barcodes at different positions are consistent.

[0062] The scanning device also includes a delay unit, which is communicatively connected to the first scanning unit 1, the second scanning unit 2 and the third scanning unit 3. The delay unit is adapted to receive the scanning information corresponding to the first scanning unit 1, the second scanning unit 2 and the third scanning unit 3, and send the scanning information corresponding to different scanning units to the scanning system 14 at different time periods.

[0063] In this embodiment, a delay device is set to receive three barcode scanning information messages acquired by the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3, and send the three barcode scanning information messages to the scanning system 14 at different time periods. This avoids mutual interference between the signals sent to the scanning system 14, enabling the scanning system 14 to correctly identify the three barcodes and ensuring the normal operation of the scanning process.

[0064] In one specific implementation, a delay unit is disposed between the scanning unit and the scanning system 14. The delay unit can be installed on one of the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3, or on all of them. Alternatively, the delay unit can be installed on the path where the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3 communicate with the scanning system 14. Or, the delay unit can also be installed on the scanning system 14.

[0065] The aforementioned barcode scanning system 14 refers to a device capable of identifying and judging barcode information, used to determine whether barcode information at different locations on the photovoltaic module is consistent. For example, the barcode scanning system 14 includes MES software, which compares the three identified barcodes. If the barcodes match, the photovoltaic module automatically passes through, and the next batch of photovoltaic modules is scanned for verification. If the barcodes are inconsistent, the barcode scanning system 14 records the photovoltaic modules with inconsistent barcodes and provides feedback to the operator. Preferably, when barcode information is inconsistent, the barcode scanning system 14 can issue either an audible alarm or a visual alarm to alert the operator of the photovoltaic module malfunction.

[0066] The aforementioned delay device is a device or functional module that can output a signal after a preset time delay under the action of an input signal.

[0067] In one alternative implementation, refer to Figure 2 The delay unit is a first delay unit 701, which is communicatively connected to the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3. The first delay unit 701 is adapted to have three transmission periods, which correspond one-to-one with the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3, respectively.

[0068] In this embodiment, a delay device is provided, namely a first delay device 701. The first delay device 701 can simultaneously receive scanning information sent by the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3, and can be adjusted to have three transmission time periods. In this way, the three scanning information can be sent to the scanning system 14 at different time periods, thereby avoiding mutual interference of signals from the scanning system 14, enabling the scanning system 14 to correctly identify the three barcodes, and ensuring the normal operation of the scanning operation.

[0069] Specifically, the first delay unit 701 has a first transmission period, a second transmission period, and a third transmission period. The first transmission period corresponds to the first scanning unit 1, the second transmission period corresponds to the second scanning unit 2, and the third transmission period corresponds to the third scanning unit 3. During the first transmission period, the scanning information of the first scanning unit 1 is sent to the scanning system 14; during the second transmission period, the scanning information of the second scanning unit 2 is sent to the scanning system 14; and during the third transmission period, the scanning information of the third scanning unit 3 is sent to the scanning system 14.

[0070] Preferably, the total transmission time of the three transmission periods of the first delay unit 701 is less than 5 seconds, so as to send the three scanning information to the scanning system 14 in a short time, thereby shortening the time required for the verification of photovoltaic modules.

[0071] In another alternative implementation, refer to Figure 3 The delay unit includes three second delay units 702, each of which is connected to the first scanning unit 1, the second scanning unit 2 and the third scanning unit 3 respectively. Each second delay unit 702 has an independent delay period, and the delay periods of the three second delay units 702 are different.

[0072] In this embodiment, three delay units are provided, namely three second delay units 702. Each of the three second delay units 702 is communicatively connected to the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3, respectively. Each of the three second delay units 702 has an independent delay period, meaning they have different transmission time periods. Thus, the three second delay units 702 are used to receive scanning information from different scanning units and send the three scanning information to the scanning system 14 at different times, thereby avoiding signal interference between the scanning system 14 and ensuring that the scanning system 14 can correctly identify the three barcodes and guarantee the normal operation of the scanning process.

[0073] Specifically, one of the second delay units 702 is communicatively connected to the first scanning unit 1, another second delay unit 702 is communicatively connected to the second scanning unit 2, and the last second delay unit is communicatively connected to the third scanning unit 3. The three second scanning units 2 send their scanning information at different times. For example, the second delay unit 702 communicatively connected to the first scanning unit 1 first sends the scanning information to the scanning system 14, then the second delay unit 702 communicatively connected to the second scanning unit 2 sends the scanning information to the scanning system 14, and finally the second delay unit 702 communicatively connected to the third scanning unit 3 sends the scanning information to the scanning system 14.

[0074] Preferably, the total transmission time of the three second delay units 702 is less than 5 seconds, so that the three scanning information can be sent to the scanning system 14 in a short time, thereby shortening the time required for the verification of photovoltaic modules.

[0075] Optionally, refer to Figure 4 The delay unit includes: a signal receiving module 703, which is communicatively connected to the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3; a delay control module 704, which is communicatively connected to the signal receiving module 703 and is adapted to set the delay period; and a signal sending module 705, which is communicatively connected to the delay control module 704 and is adapted to send scanning information to the scanning system 14 according to the control instructions of the delay control module 704.

[0076] In this embodiment, the signal receiving module 703 is used to receive scanning information. The delay control module 704 and the signal sending module 705 work together to send different scanning information to the scanning system 14 at different times, thereby avoiding mutual interference between the signals of the scanning system 14.

[0077] Optionally, refer to Figure 1 , Figure 8 It also includes three support mechanisms, which are respectively connected to the first scanning unit 1, the second scanning unit 2 and the third scanning unit 3.

[0078] In this embodiment, three support mechanisms are provided to support the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3 respectively, so that the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3 are respectively located in preset positions to achieve alignment with the barcode on the photovoltaic module, which facilitates scanning and collecting barcode information.

[0079] Optionally, the support mechanism includes: a base 8; and a support arm 9, one end of which is connected to the base 8, and the other end of which is connected to one of the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3.

[0080] In this embodiment, one end of the support arm 9 is connected to the base 8, and the other end is connected to the scanning unit, thereby achieving effective support for the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3.

[0081] Optionally, refer to Figure 8 The support arm 9 includes: a first connecting arm 901, one end of which is provided with a first connecting portion 10 between itself and the base 8, the first connecting arm 901 being adapted to rotate relative to the base 8 in a first plane via the first connecting portion 10; a second connecting arm 902, the other end of which is provided with a second connecting portion 11 between itself and the other end of the first connecting arm 901, the second connecting arm 902 being adapted to rotate relative to the first connecting arm 901 in a second plane via the second connecting portion 11, the other end of the second connecting arm 902 being connected to one of the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3; wherein the first plane is perpendicular to the second plane.

[0082] In this embodiment, the first connecting part 10 and the second connecting part 11 cooperate to enable the scanning unit installed at the end of the second connecting arm 902 to rotate 360°, thereby facilitating the adjustment of the scanning unit's position. When the size or specifications of the photovoltaic module or the position of the barcode on the photovoltaic module changes, the position of the scanning unit is changed by adjusting the support arm 9 to ensure that the scanning unit and the barcode on the photovoltaic module are aligned, effectively acquiring the barcode position information and transmitting it to the scanning system 14.

[0083] In one specific implementation, refer to Figure 9A fixed post 15 is fixedly connected to the base 8. The first connecting part 10 is a rotating ball, which is sleeved on the fixed post 15 and rotates with the fixed post 15. The second connecting part 11 includes a first connecting block 111 and a second connecting block 112. The first connecting block 111 and the end of the first connecting arm 901 away from the base 8 are fixedly connected. A connecting post 16 is fixed on the first connecting block 111. A fastening nut 17 is threaded on the connecting post 16. The second connecting block 112 and the end of the second connecting arm 902 away from the scanning unit are fixedly connected. A through hole 18 adapted to the connecting post 16 is opened on the second connecting block 112.

[0084] In this way, the first connecting part 10 and the second connecting part 11 are arranged in the above manner, so that the rotating ball can rotate relative to the base 8 with the fixed column 15 as the rotation center. At the same time, the second connecting block 112 can rotate relative to the first connecting arm 901 with the connecting column 16 as the rotation center. When fixing the relative position of the first connecting arm 901 and the second connecting arm 902, the relative fixation of the first connecting block 111 and the second connecting block 112 is achieved by using the fastening nut 17.

[0085] Of course, in addition to the above-described configuration, the first connecting part 10 and the second connecting part 11 can also adopt other configurations to achieve position adjustment of different scanning units.

[0086] Optionally, the first scanning unit 1 includes a first barcode scanner; and / or, the second scanning unit 2 includes a second barcode scanner; and / or, the third scanning unit 3 includes a third barcode scanner.

[0087] In this embodiment, the barcode scanning unit uses a barcode scanner, which is the core device for scanning barcodes. The barcode scanner is used to scan barcodes to obtain scanning information and then send the obtained scanning information to the barcode scanning system 14.

[0088] Furthermore, the barcode scanner is equipped with a vision camera, which is used to capture image information of the barcode set on the photovoltaic module to assist the barcode scanning system 14 in performing multi-dimensional information verification and improve the accuracy of barcode verification.

[0089] Secondly, embodiments of this utility model provide a photovoltaic module verification device, including any of the above-mentioned barcode scanning devices.

[0090] In this embodiment, the barcode scanning device of the photovoltaic module verification equipment is equipped with a timer, and the timer is communicatively connected to the first scanning unit 1, the second scanning unit 2, and the third scanning unit 3. The first scanning unit 1, the second scanning unit 2, and the third scanning unit 3 simultaneously scan the barcodes at different locations on the photovoltaic module and send the obtained scanning information to the timer. The extender 7 then sends the three scanning information messages to the scanning system 14 at different time intervals. This avoids mutual interference between the signals sent to the scanning system 14, enabling the scanning system 14 to correctly identify the three barcodes and ensuring the normal operation of the scanning process.

[0091] Optionally, it also includes: an outer frame 12, on which the first scanning unit 1, the second scanning unit 2 and the third scanning unit 3 are all disposed; and a conveying unit 13 disposed inside the outer frame 12, wherein the outer frame 12 is adapted to convey photovoltaic modules.

[0092] In this embodiment, the conveying unit 13 is used to facilitate the transport of photovoltaic modules. The first scanning unit 1, the second scanning unit 2 and the third scanning unit 3 are set on the outer frame 12 to facilitate the fixing of the positions of the first scanning unit 1, the second scanning unit 2 and the third scanning unit 3, and to align their scanning ends with the barcode positions on the photovoltaic modules, so as to realize effective scanning operation.

[0093] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A barcode scanning device, characterized in that, include: The first scanning unit (1) has a scanning end adapted to face the glass surface (4) of the photovoltaic module; The second scanning unit (2) has a scanning end adapted to face the back panel (5) of the photovoltaic module; The third scanning unit (3) has a scanning end adapted to face the frame (6) of the photovoltaic module; The delay unit is communicatively connected to the first scanning unit (1), the second scanning unit (2) and the third scanning unit (3). The delay unit is adapted to receive the scanning information corresponding to the first scanning unit (1), the second scanning unit (2) and the third scanning unit (3), and send the scanning information corresponding to different scanning units to the scanning system (14) at different time periods.

2. The barcode scanning device according to claim 1, characterized in that, The delay unit is a first delay unit (701), which is communicatively connected to the first scanning unit (1), the second scanning unit (2) and the third scanning unit (3); The first delay unit (701) is adapted to have three transmission periods, which correspond one-to-one with the first scanning unit (1), the second scanning unit (2) and the third scanning unit (3).

3. The barcode scanning device according to claim 1, characterized in that, The delay unit includes three second delay units (702), each of which is connected in communication with the first scanning unit (1), the second scanning unit (2) and the third scanning unit (3). Each of the second delay units (702) has an independent delay period, and the delay periods of the three second delay units (702) are not the same.

4. The barcode scanning device according to claim 1, characterized in that, The delay unit includes: The signal receiving module (703) is communicatively connected to the first scanning unit (1), the second scanning unit (2) and the third scanning unit (3); The delay control module (704) is communicatively connected to the signal receiving module (703) and is adapted to set the delay period; The signal sending module (705) is communicatively connected to the delay control module (704), and the signal sending module (705) is adapted to send the scanning information to the scanning system (14) according to the control command of the delay control module (704).

5. The barcode scanning device according to any one of claims 1-4, characterized in that, It also includes three support mechanisms, which are respectively connected to the first scanning unit (1), the second scanning unit (2) and the third scanning unit (3).

6. The barcode scanning device according to claim 5, characterized in that, The supporting structure includes: Base (8); The support arm (9) is connected at one end to the base (8) and at the other end to one of the first scanning unit (1), the second scanning unit (2) and the third scanning unit (3).

7. The barcode scanning device according to claim 6, characterized in that, The support arm (9) includes: A first connecting arm (901) is provided with a first connecting part (10) between one end of its arm and the base (8). The first connecting arm (901) is adapted to rotate relative to the base (8) in a first plane through the first connecting part (10). A second connecting arm (902) is provided with a second connecting part (11) between the other end of the first connecting arm (901). The second connecting arm (902) is adapted to rotate relative to the first connecting arm (901) in a second plane through the second connecting part (11). The other end of the second connecting arm (902) is connected to one of the first scanning unit (1), the second scanning unit (2), and the third scanning unit (3). The first plane is perpendicular to the second plane.

8. The barcode scanning device according to any one of claims 1-4, characterized in that, The first scanning unit (1) includes a first barcode scanner; And / or, the second scanning unit (2) includes a second barcode scanner; And / or, the third scanning unit (3) includes a third barcode scanner.

9. A photovoltaic module testing device, characterized in that, include: The barcode scanning device according to any one of claims 1-8.

10. The photovoltaic module verification equipment according to claim 9, characterized in that, Also includes: The outer frame (12) is provided with the first scanning unit (1), the second scanning unit (2) and the third scanning unit (3). A conveying unit (13) is disposed within the outer frame (12), the outer frame (12) being adapted to convey photovoltaic modules.

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