Flexible connection AOI gathering system and control method thereof

Abstract

The invention provides a flexible connection AOI gathering system and a control method thereof. The gathering system comprises a hardware part and a software control part. The hardware part comprises a pre-lamination AOI detection unit, an independent first encoder, a first batch-changing adhesive tape inductive sensor, a first decoding camera and a front AOI host; a rear AOI detection unit, an independent second encoder, a second batch changing adhesive tape inductive sensor, a second decoding camera and a rear AOI host; the code spraying machine is in communication connection with the rear AOI host; and the rear AOI host is used for collecting defect information of the pre-lamination AOI detection unit and the post-lamination AOI detection unit, and is connected with the code spraying machine to control code spraying. By adopting the technical scheme of the invention, the defect coordinate automatic calibration under the dynamic offset of the cloth storage machine device is realized through the edge marker method positioning calibration and the front and back AOI relative coordinate conversion, and the problem that the traditional method cannot perform assembly detection is solved.

Description

Technical Field

[0001] This invention relates to the field of appearance inspection technology, and in particular to a soft-connection AOI assembly system and its control method. Background Technology

[0002] Currently, in the AOI (Automated Optical Inspection) process of polarizer production, the main methods for consolidating different processes or multiple AOI groups within the same process are:

[0003] 1) Without using the aggregation function, the coating and bonding are directly applied and then a multi-station, multi-view AOI layout is laid out. However, this method has defects in the substrate because the AOI is not easy to detect after the release film or multi-layer compensation film is applied, which cannot meet the high-specification requirements of customers for electrical testing of bumps and bright spots.

[0004] 2) When there are AOIs before and after the bonding process at the station, hard compensation is made by using a fixed distance in meters to merge the same defect coordinates of the AOIs before and after. This mode has a limitation on the distance between the AOIs before and after and is a fixed interval. If the distance between the AOIs before and after is too long, it will cause the AOI signal processing to be unable to keep up and affect the stability of the AOI system. If the distance between the AOIs before and after is not fixed, it will also cause the coordinate merging problem between the AOIs before and after.

[0005] 3) In the extended station process, the QR code meter reading is missing. The coating station process reads the QR code data through a QR code reading system, performs relative coordinate transformation through the inkjet printing system, and integrates the defect location reported by the coating station's AOI with the defect location of the extended station before inkjet printing. This inkjet printer aggregation method is only applicable to fixed processes across stations and is not suitable for processes with multiple changing processes within a single station.

[0006] 4) The meter reading of the QR code printed at the extension station is lost. The AOI uses the QR code as a reference to perform absolute coordinate transformation, which can solve the above-mentioned problem of process aggregation of multiple processes at the three stations. However, the inkjet printer is not compatible. The inkjet aggregation system needs to perform X / Y rounding, deduplication, and absolute coordinate conversion to the AOI coordinates of the next process before it can be allocated to the inkjet printer for printing. In addition, the AOI and the inkjet printer need to be integrated into the design. Summary of the Invention

[0007] To address the above technical problems, this invention discloses a soft-connected AOI aggregation system and its control method, which solves the problem that traditional methods cannot aggregate and detect large changes in distance between front and rear cameras.

[0008] The technical solution adopted by this invention is as follows:

[0009] A hub system for soft-connected AOIs includes a hardware component and a software control component;

[0010] The hardware component includes:

[0011] The system includes a front AOI detection unit, an independent first encoder, a first batch change tape sensing sensor, a first decoding camera, and a front AOI host.

[0012] The assembly includes a post-lamination AOI detection unit, a separate second encoder, a second batch tape change sensor, a second decoding camera, and a post-AOI host.

[0013] The inkjet printer is communicatively connected to the rear AOI host.

[0014] The front AOI host is connected to the bonding front AOI detection unit, the first encoder, the first batch change tape sensing sensor and the first decoding camera signal, and integrates and processes the signals of multiple sensors to realize the display and monitoring of defect information detected by the front AOI host.

[0015] The rear AOI host establishes signal connections with the post-lamination AOI detection unit, the second encoder, the second batch tape changing sensor, and the second decoding camera, integrating and processing signals from multiple sensors. The rear AOI host also receives defect information from the pre-lamination AOI detection unit and merges the defect information detected by the pre-lamination AOI detection unit and the post-lamination AOI detection unit into a single defect display through coordinate transformation. Finally, based on the judgment result, it outputs information to the inkjet printer to perform the corresponding inkjet printing operation.

[0016] The software control section includes:

[0017] The roll-changing synchronization module controls the pre-lamination AOI detection unit and the post-lamination AOI detection unit to synchronize the meter readings during roll changes based on signals from the first and second batch-changing tape sensors. The encoder positioning module locates defects based on signals from the first and second encoders. The coordinate transformation and aggregation module converts the defect coordinates detected by the pre-lamination AOI detection unit into coordinates relative to the post-lamination AOI detection unit based on pre-set markers. The post-AOI host then aggregates the defect information before and after conversion and controls the inkjet printer to perform inkjet printing. The markers are unique and can be automatically printed using marking equipment or drawn manually with a marker pen. The forms include, but are not limited to, QR codes, laser codes, marker pen markings, numeric codes, serial numbers, and barcodes. These markers must be marked before the pre-AOI process.

[0018] Furthermore, the marking rule is to create a unique mark every 100 meters, with a fixed spacing and no requirements. In industrial applications, high-precision encoders typically have a cumulative error of about 0.05 meters per 1000 meters, which translates to a cumulative error of 5 millimeters per 100 meters. Therefore, setting a unique identifier within 100 meters and using this identifier to perform automatic AOI defect positioning and correction coordinates can meet the coordinate accuracy requirements for defect marking.

[0019] Furthermore, the markers include a left marker and a right marker. According to the marker rules, if the roll of material is long, there may be multiple markers. To better illustrate the logic of coordinate correction and relative transformation based on the markers, it is preferable to use left and right markers.

[0020] Furthermore, the X coordinates of the left and right markers may be the same if the front and rear decoding cameras and AOI inspection machines are in the same edge-tracing position. However, there are also cameras that decode the markers that may not have X coordinates or may have mechanical coordinates, which are not necessarily the relative coordinates at the start of edge-tracing. Technically, the merging of defects in the front and rear AOIs does not require x to correspond, so the X coordinates of these two markers do not have to be the same.

[0021] This technical solution uses a unique identifier (without requiring fixed intervals) to transform relative coordinates and link the encoders of the front and rear AOIs, the tape sensing splice / batch change, the decoding camera, and the software control points. This solves the problem of traditional methods being unable to aggregate detection data when the distance between the front and rear cameras varies significantly.

[0022] As a further improvement of the present invention, the roll-changing synchronization module performs the following steps:

[0023] When the tape joint moves to the position of the first batch tape change sensor, the signal of the first batch tape change sensor is triggered.

[0024] After a first preset time or distance delay, the pre-lamination AOI detection unit is triggered to enter Spice mode and continue for a second preset distance. In the film roll-to-roll production, the core function of the Spice signal is to mark the roll tape joint (such as the splicing of upper and lower film rolls), so that the AOI system automatically skips the product inspection of the tape joint area, avoiding the impact of defects in the joint tape area on the stability of the AOI system.

[0025] After a third preset time or distance delay, the Roll Change mode and PieceName change mode of the pre-lamination AOI inspection unit are triggered. The Roll Change mode is a workflow for changing and rewinding rolls of material after continuous production reaches a certain physical length. To handle this specific operation, AOI systems typically design a Roll Change procedure to ensure continuous production inspection and data integrity. The PieceName mode assigns a unique batch number to the new roll of material being inspected after the Roll Change mode. This facilitates AOI inspection and physical quality traceability, defect location, and data analysis.

[0026] When the tape joint moves to the position of the second batch tape change sensor, the signal of the second batch tape change sensor is triggered.

[0027] After a fourth preset time or distance, the AOI detection unit after bonding is triggered to enter Spice mode and continues for a fifth preset distance;

[0028] After a delay of a sixth preset time or distance, the Roll Change mode and PieceName change mode of the AOI detection unit after bonding are triggered, and the Roll Change mode and PieceName change mode of the inkjet printer are triggered simultaneously.

[0029] As a further improvement of the present invention, the coordinate transformation and aggregation module uses the coordinate markings of the same marker by two decoding cameras to achieve coordinate transformation using a relative coordinate transformation algorithm, the relative coordinate transformation algorithm including:

[0030] Obtain the Y-axis coordinates Y0 and Y1 of the left and right markers detected by the AOI unit before bonding;

[0031] Obtain the Y-axis coordinates Y0′ and Y1′ of the same markers detected by the AOI unit after bonding; furthermore, the X coordinates of the left and right markers are consistent by default in the front and back AOI detections;

[0032] For any defect point coordinate (X,Y) detected by the AOI unit before bonding, its transformed Y-axis coordinate is Y+ΔY;

[0033] Here, ΔY is determined by finding the deviation value between the coordinate pairs before and after bonding of the marker closest to the Y coordinate of the defect point.

[0034] Each unique identifier is used for front and rear AOI coordinate calibration to avoid coordinate errors caused by dynamic changes in the distance between front and rear AOIs. The two decoding cameras mark the Y-axis coordinate of the same identifier and perform alignment and consolidation; other coordinates are simultaneously calibrated by finding nearby identifiers.

[0035] As a further improvement of the present invention, the Y-axis coordinates Y0 and Y1 of the left and right markers detected by the AOI unit before bonding are acquired by the first decoding camera, and the Y-axis coordinates Y0′ and Y1′ of the same markers detected by the AOI unit after bonding are acquired by the second decoding camera.

[0036] The method for calculating ΔY is as follows:

[0037] Calculate the coordinate deviation of the left marker: ΔY1=Y0′-Y0;

[0038] Calculate the coordinate deviation of the right marker: ΔY2=Y1′-Y1;

[0039] For the Y-coordinate of the defect point, calculate its distance from Y0 and Y1, and select the ΔY corresponding to the nearest marker as the ΔY value of the defect point.

[0040] As a further improvement of the present invention, the first encoder shares a signal channel with the pre-lamination AOI detection unit and the matching first QR code decoder, and the second encoder shares a signal channel with the post-lamination AOI detection unit, the matching second QR code decoder, and the post-AOI host. Furthermore, the second encoder is synchronized with the inkjet printer signal to realize meter counting for each unit module.

[0041] This invention discloses a control method for a soft-connection AOI assembly system as described in any of the above claims, comprising: sensing the arrival of a tape joint by a first sensor installed at the pre-fitting station;

[0042] Based on the signal from the first sensor, after a first delay, the AOI detection unit before bonding is controlled to enter Spice mode;

[0043] Based on the signal from the first sensor, after a second delay, the AOI detection unit before bonding is controlled to perform RollChange and PieceName change operations.

[0044] The arrival of the tape joint is detected by a second sensor installed at the post-lamination station;

[0045] Based on the signal from the second sensor, after a third delay, the AOI detection unit is controlled to enter Spice mode after bonding.

[0046] Based on the signal from the second sensor, after a fourth delay, the AOI detection unit and the inkjet printer performing the inkjet printing operation are controlled to synchronously execute Roll Change and PieceName change operations.

[0047] Relative coordinate transformation: Based on the marker, the defect coordinates detected by the pre-attachment AOI detection unit and the control of the pre-attachment AOI detection unit are converted into relative coordinates. The post-attachment AOI host then aggregates the converted defect coordinates and controls the inkjet printer to perform inkjet printing positioning.

[0048] As a further improvement of the present invention, the relative coordinate transformation includes:

[0049] The first decoding camera and the second decoding camera respectively identify at least two identical markers on the roll material and record their Y coordinates in their respective work station coordinate systems;

[0050] Calculate the Y-coordinate deviation of the same marker at the preceding and following workstations;

[0051] Receive the defect coordinates (X,Y) sent by the AOI detection unit before bonding;

[0052] Find the nearest marker reference point for the Y-coordinate of the defect point;

[0053] Add the Y-coordinate deviation value of the nearest marker reference point to the Y-coordinate of the defect point to obtain the transformed coordinates of the defect point in the post-fitting coordinate system.

[0054] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0055] By employing the technical solution of this invention, distance calibration is achieved through edge markers and relative coordinate transformation between the front and rear AOIs, thus realizing automatic calibration of defect coordinates under dynamic offset. This solves the problem that traditional methods cannot aggregate detection data when the distance between the front and rear cameras varies significantly. It also enables automatic calibration of defect coordinates under dynamic offset of the fabric storage machine. The fabric storage machine is a device on the production line of thin film materials such as polarizing film (used to achieve "non-stop continuous operation" of the production line and stabilize material tension). It is installed between the pre-lamination AOI host and the post-lamination AOI host. During operation, the film material moves up and down, forming a dynamic range of approximately 50 meters. This causes the defect locations detected by the two AOI devices to not accurately correspond, making it difficult for the system to automatically merge the same defect detected by the two devices into a single record. Attached Figure Description

[0056] Figure 1 This is a schematic diagram of the hardware portion of an embodiment of the present invention.

[0057] Figure 2 This is a schematic diagram of the roll-changing sensor according to an embodiment of the present invention.

[0058] Figure 3 This is a hardware connection diagram according to an embodiment of the present invention.

[0059] Figure 4This is a schematic diagram of relative coordinate transformation according to an embodiment of the present invention. Detailed Implementation

[0060] The preferred embodiments of the present invention will be described in further detail below.

[0061] A hub system for soft-connected AOIs includes a hardware component and a software control component;

[0062] like Figure 1 As shown, the hardware component includes:

[0063] The system includes a front AOI detection unit, an independent first encoder, a first batch change tape sensing sensor, a first decoding camera, and a front AOI host.

[0064] The assembly includes a post-lamination AOI detection unit, a separate second encoder, a second batch tape change sensor, a second decoding camera, and a post-AOI host.

[0065] The inkjet printer is communicatively connected to the rear AOI host.

[0066] The AOI detection unit before bonding and the AOI detection unit after bonding are relatively independent.

[0067] The front AOI host is connected to the pre-lamination AOI detection unit, the first encoder, the first batch tape change sensor, and the first decoding camera, integrating and processing signals from multiple sensors to display and monitor defect information detected by the front AOI host. The rear AOI host is connected to the post-lamination AOI detection unit, the second encoder, the second batch tape change sensor, and the second decoding camera, integrating and processing signals from multiple sensors. The rear AOI host also receives defect information from the pre-lamination AOI detection unit and, through coordinate transformation, merges the defect information detected by the pre-lamination and post-lamination AOI detection units into a single defect display. Finally, based on the judgment result, it outputs information to the inkjet printer to perform the corresponding inkjet printing operation.

[0068] The hardware component is the fundamental guarantee for the implementation of the aggregation logic component. The logic component is contained within the software control, receiving feedback and control through the encoder and sensing splice / batch change signal lines. The aggregation logic component, also contained within the software, is corrected and controlled based on the signal feedback from the hardware.

[0069] The software control section includes:

[0070] The roll-changing synchronization module controls the pre-lamination AOI detection unit and the post-lamination AOI detection unit to synchronize the meter readings during roll changes based on signals from the first and second batch-changing tape sensors. The encoder positioning module locates defects based on signals from the first and second encoders. The coordinate transformation and aggregation module converts the defect coordinates detected by the pre-lamination AOI detection unit into coordinates relative to the post-lamination AOI detection unit based on pre-set markers. The post-AOI host then aggregates the defect information before and after conversion and controls the inkjet printer to perform inkjet printing. The markers are unique and can be automatically printed using marking equipment or drawn manually with a marker pen. Forms include, but are not limited to, QR codes, laser codes, marker pen markings, numeric codes, serial numbers, and barcodes. These markers must be marked before the pre-AOI operation. The marking rule is to create a unique marker every 100 meters, with fixed spacing. In industrial applications, high-precision encoders typically have a cumulative error of approximately 0.05 meters per 1000 meters, which translates to a cumulative error of 5 millimeters per 100 meters. Therefore, setting a unique identifier within each 100-meter interval and using this identifier for automatic AOI defect location and correction coordinates can meet the coordinate accuracy requirements for defect marking. The identifiers include left and right identifiers. According to the identifier rules, if the roll of material is long, there may be multiple identifiers. To better illustrate the logic of coordinate correction and relative transformation based on the identifiers, left and right identifiers are preferred.

[0071] The roll-changing synchronization module executes the following steps:

[0072] When the tape joint moves to the position of the first batch tape change sensor, the signal of the first batch tape change sensor is triggered.

[0073] After a first preset time or distance delay, the pre-lamination AOI detection unit is triggered to enter Spice mode and continue for a second preset distance. In the film roll-to-roll production, the core function of the Spice signal is to mark the roll tape joint (such as the splicing of upper and lower film rolls), so that the AOI system automatically skips the product inspection of the tape joint area, avoiding the impact of defects in the joint tape area on the stability of the AOI system.

[0074] After a third preset time or distance delay, the Roll Change mode and PieceName change mode of the pre-lamination AOI inspection unit are triggered. The Roll Change mode is a workflow for changing and rewinding rolls of material after continuous production reaches a certain physical length. To handle this specific operation, AOI systems typically design a Roll Change procedure to ensure continuous production inspection and data integrity. The PieceName mode assigns a unique batch number to the new roll of material being inspected after the Roll Change mode. This facilitates AOI inspection and physical quality traceability, defect location, and data analysis.

[0075] When the tape joint moves to the position of the second batch tape change sensor, the signal of the second batch tape change sensor is triggered.

[0076] After a fourth preset time or distance, the AOI detection unit after bonding is triggered to enter Spice mode and continues for a fifth preset distance;

[0077] After a delay of a sixth preset time or distance, the Roll Change mode and PieceName change mode of the AOI detection unit after bonding are triggered, and the Roll Change mode and PieceName change mode of the inkjet printer are triggered simultaneously.

[0078] The coordinate transformation and aggregation module uses the coordinate markings of the same marker by two decoding cameras and employs a relative coordinate transformation algorithm to achieve coordinate transformation. The relative coordinate transformation algorithm includes:

[0079] Obtain the Y-axis coordinates Y0 and Y1 of the left and right markers detected by the AOI unit before bonding;

[0080] Obtain the Y-axis coordinates Y0′ and Y1′ of the same markers detected by the AOI unit after bonding; the X coordinates of the left and right markers are consistent by default in the front and back AOI detections;

[0081] For any defect point coordinate (X,Y) detected by the AOI unit before bonding, its transformed Y-axis coordinate is Y+ΔY;

[0082] Here, ΔY is determined by finding the deviation value between the coordinate pairs before and after bonding of the marker closest to the Y coordinate of the defect point.

[0083] The Y-axis coordinates Y0 and Y1 of the left and right markers detected by the AOI unit before bonding are acquired by the first decoding camera, and the Y-axis coordinates Y0′ and Y1′ of the same markers detected by the AOI unit after bonding are acquired by the second decoding camera.

[0084] The method for calculating ΔY is as follows:

[0085] Calculate the coordinate deviation of the left marker: ΔY1=Y0′-Y0;

[0086] Calculate the coordinate deviation of the right marker: ΔY2=Y1′-Y1;

[0087] For the Y-coordinate of the defect point, calculate its distance from Y0 and Y1, and select the ΔY corresponding to the nearest marker as the ΔY value of the defect point.

[0088] The first encoder shares a signal channel with the pre-lamination AOI detection unit and the matching first QR code decoder. The second encoder shares a signal channel with the post-lamination AOI detection unit, the matching second QR code decoder, and the post-AOI host. The second encoder is synchronized with the inkjet printer signal to realize meter counting for each unit module.

[0089] Specifically, independent sensors are installed in front of the AOI of both the pre-lamination AOI detection unit and the post-lamination AOI detection unit, primarily using an encoder. The tape is changed when the tape joint passes through the AOI. That is, during roll change, the first batch change sensor before lamination detects the change and initiates the control; after lamination, the second batch change sensor initiates the control.

[0090] like Figure 2 As shown, when the tape joint reaches point a, the first batch tape change sensor is triggered; when the joint reaches point b (delayed by ab distance), the Spice mode of the front AOI detection unit is triggered (AOI-A automatically continues for a distance bd); when the joint reaches point c (delayed by ac distance), the Roll Change mode of the front AOI detection unit + the PieceName change mode of AOI_A is triggered.

[0091] Point a is the roll change signal that triggers the first batch change tape sensor. The Splice is delayed until point b to avoid the unstable bursting zone before and after the AOI detection of the tape. The delay distance is to wait for the AOI system to enter a stable detection state.

[0092] When the tape joint reaches point e, the second batch tape change sensor is triggered. When the joint reaches point f (delayed by distance ef), the Spice mode of the subsequent AOI detection unit is triggered (AOI_B automatically continues for distance fh). When the joint reaches point f (delayed by distance ef), the Roll Change mode of the subsequent AOI detection unit, the PieceName change mode of the subsequent AOI detection unit, Mark's RollChange, and Mark's PieceName change are triggered.

[0093] like Figure 3As shown, the pre-lamination AOI detection unit and the post-lamination AOI detection unit are equipped with independent encoders. The pre-lamination AOI detection unit shares a first encoder with the QR code decoder A paired with the AOI. The post-lamination AOI detection unit, the QR code decoder B paired with the AOI, the PLC, and the IPC use the same encoder meter counter. The use of the same encoder meter counter across all units ensures more accurate counting and eliminates deviations. The PLC processes signals and handles the inkjet printing control logic; the IPC is responsible for converting AOI data into printable instructions. The synchronizer receives the encoder's pulse signals. Because the post-lamination AOI detection unit aggregates the pre- and post-lamination AOI detection data and connects to the inkjet printer to control printing, and a complete inkjet printing system requires both a PLC and an IPC, the synchronizer acts as a central processing unit, uniformly processing encoder signals and distributing instructions to the PLC, IPC, etc., simplifying the system architecture and improving the overall system's anti-interference capability and synchronization accuracy.

[0094] Because the distance between the front and rear cameras changes significantly, traditional methods cannot detect them. The system in this embodiment is based on markers; the defect coordinates detected by the pre-attachment AOI detection unit and the post-attachment AOI detection unit can be converted into relative coordinates. The relative coordinate conversion algorithm is as follows:

[0095] The X coordinates of the front and rear markers 1 and 2 are aligned: the front and rear decoding cameras and AOI inspection machine have the same edge-tracking position, so the X coordinates can be assumed to be the same by default.

[0096] The front and rear encoders operate on rollers and will experience some wear. Therefore, there may be a cumulative deviation in the Y coordinate of the same marker on the front and rear sides. However, the cumulative deviation will be calibrated in real time through the unique marker.

[0097] The conversion algorithm aligns and merges the coordinates of the same marker from two decoding cameras; other coordinates are then calibrated by finding similar coordinates. For example... Figure 4 As shown, for example:

[0098] Define the left marker 1 to decode the Y coordinate: Y0, and the right marker 1 to decode the Y coordinate Y0′; the left marker 2 to decode the Y coordinate: Y1, and the right marker 1 to decode the Y coordinate Y1′;

[0099] The coordinates of the missing point 1 are (X1, Y1). The coordinates are then matched with the coordinates of the same marker. After the AOI is applied, the coordinates of the missing point 1 are converted to (X1, Y+(Y0′-Y0)).

[0100] For example, the Y coordinate of marker 1 (decoding) before bonding is 12345, and the Y coordinate after bonding is 12348; the Y coordinate of marker 2 (decoding) before bonding is 13348, and the Y coordinate after bonding is 13345. The conversion rule is as follows: if the Y coordinate of the AOI defect before bonding is 13350, the Y coordinate after bonding is 13350 + (13345 - 13348).

[0101] The front AOI inspection unit before bonding can be displayed. The rear AOI inspection unit after bonding collects the defects before and after bonding and connects to the inkjet printer. The rear AOI inspection unit after bonding has a host display. The rear AOI inspection unit after bonding collects the defects before and after bonding and connects to the inkjet printer.

[0102] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A busbar system for soft-connected AOIs, characterized in that: Includes both hardware and software control components; The hardware component includes: The system includes a front AOI detection unit, an independent first encoder, a first batch change tape sensing sensor, a first decoding camera, and a front AOI host. The assembly includes a post-lamination AOI detection unit, a separate second encoder, a second batch tape change sensor, a second decoding camera, and a post-AOI host. The inkjet printer is communicatively connected to the rear AOI host. The front AOI host is connected to the pre-lamination AOI detection unit, the first encoder, the first batch tape change sensor, and the first decoding camera, integrating and processing signals from multiple sensors to display and monitor defect information detected by the front AOI host. The rear AOI host is connected to the post-lamination AOI detection unit, the second encoder, the second batch tape change sensor, and the second decoding camera, integrating and processing signals from multiple sensors. The rear AOI host also receives defect information from the pre-lamination AOI detection unit and merges the defect information detected by the pre-lamination and post-lamination AOI detection units into a single defect display through coordinate transformation. Finally, based on the judgment result, it outputs information to the inkjet printer to perform the corresponding inkjet printing operation. The software control section includes: The roll change synchronization module is used to control the pre-lamination AOI detection unit and the post-lamination AOI detection unit to synchronize the meter count during roll change based on the signals from the first batch change tape sensing sensor and the second batch change tape sensing sensor. The encoder positioning module is used to locate the defect position based on the signals from the first encoder and the second encoder; the coordinate transformation and aggregation module is used to convert the defect coordinates detected by the pre-bonding AOI detection unit into coordinates relative to the post-bonding AOI detection unit based on a pre-set marker, and the post-AOI host aggregates the defect information before and after bonding to control the inkjet printer to perform inkjet printing.

2. The aggregation system for soft-connected AOI according to claim 1, characterized in that: The roll-changing synchronization module executes the following steps: When the tape joint moves to the position of the first batch tape change sensor, the signal of the first batch tape change sensor is triggered. After a first preset time or distance delay, the pre-lamination AOI detection unit is triggered to enter Spice mode and continue for a second preset distance. In the film roll-to-roll production process, the core function of the Spice signal is to mark the roll tape joint, so that the AOI system can automatically skip the product detection in the tape joint area. After a delay of a third preset time or distance, the Roll Change mode and PieceName change mode of the pre-lamination AOI detection unit are triggered. The Roll Change mode is a workflow for changing and rewinding rolls when continuous production rolls reach a certain physical length. To handle this specific operation, the pre-lamination AOI detection unit sets up a roll changing procedure. The PieceName mode assigns a unique batch number to the new roll being inspected after the Roll Change mode. When the tape joint moves to the position of the second batch tape change sensor, the signal of the second batch tape change sensor is triggered. After a fourth preset time or distance, the AOI detection unit after bonding is triggered to enter Spice mode and continues for a fifth preset distance; After a delay of a sixth preset time or distance, the Roll Change mode and PieceName change mode of the AOI detection unit after bonding are triggered, and the Roll Change mode and PieceName change mode of the inkjet printer are triggered simultaneously.

3. The aggregation system for soft-connected AOI according to claim 1, characterized in that: The coordinate transformation and aggregation module uses the coordinate markings of the same marker by two decoding cameras and employs a relative coordinate transformation algorithm to achieve coordinate transformation. The relative coordinate transformation algorithm includes: Obtain the Y-axis coordinates Y0 and Y1 of the left and right markers detected by the AOI unit before bonding; Obtain the Y-axis coordinates Y0′ and Y1′ of the same markers detected by the AOI unit after bonding; For any defect point coordinate (X,Y) detected by the AOI unit before bonding, its transformed Y-axis coordinate is Y+ΔY; Here, ΔY is determined by finding the deviation value between the coordinate pairs before and after bonding of the marker closest to the Y coordinate of the defect point.

4. The aggregation system for soft-connected AOI according to claim 1, characterized in that: The Y-axis coordinates Y0 and Y1 of the left and right markers detected by the AOI unit before bonding are acquired by the first decoding camera, and the Y-axis coordinates Y0′ and Y1′ of the same markers detected by the AOI unit after bonding are acquired by the second decoding camera. The method for calculating ΔY is as follows: Calculate the coordinate deviation of the left marker: ΔY1=Y0′-Y0; Calculate the coordinate deviation of the right marker: ΔY2=Y1′-Y1; For the Y-coordinate of the defect point, calculate its distance from Y0 and Y1, and select the ΔY corresponding to the nearest marker as the ΔY value of the defect point.

5. The assembly system for soft-connected AOI according to claim 1, characterized in that: The first encoder shares a signal channel with the pre-lamination AOI detection unit and the matching first QR code decoder. The second encoder shares a signal channel with the post-lamination AOI detection unit, the matching second QR code decoder, and the post-AOI host. The second encoder is synchronized with the inkjet printer signal to realize meter counting for each unit module.

6. The control method for the assembly system of a soft-connected AOI as described in any one of claims 1 to 5, characterized in that: include: The arrival of the tape joint is detected by the first sensor installed at the bonding pre-work station; Based on the signal from the first sensor, after a first delay, the AOI detection unit before bonding is controlled to enter Spice mode; Based on the signal from the first sensor, after a second delay, the AOI detection unit before bonding is controlled to perform RollChange and PieceName change operations. The arrival of the tape joint is detected by a second sensor installed at the post-lamination station; Based on the signal from the second sensor, after a third delay, the AOI detection unit is controlled to enter Spice mode after bonding. Based on the signal from the second sensor, after a fourth delay, the AOI detection unit and the inkjet printer performing the inkjet printing operation are controlled to synchronously execute Roll Change and PieceName change operations. Relative coordinate transformation: Based on the marker, the defect coordinates detected by the pre-lamination AOI detection unit and the control of the pre-lamination AOI detection unit are converted into relative coordinates. The post-AOI host then aggregates the converted defect coordinates and controls the inkjet printer to perform inkjet printing positioning.

7. The control method for the assembly system of the soft-connected AOI according to claim 6, characterized in that: The relative coordinate transformation includes: identifying at least two identical markers on the roll material using the first decoding camera and the second decoding camera respectively, and recording their Y coordinates in their respective workstation coordinate systems; Calculate the Y-coordinate deviation of the same marker at the preceding and following workstations; Receive the defect coordinates (X,Y) sent by the AOI detection unit before bonding; Find the nearest marker reference point for the Y-coordinate of the defect point; Add the Y-coordinate deviation value of the nearest marker reference point to the Y-coordinate of the defect point to obtain the transformed coordinates of the defect point in the post-fitting coordinate system.

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