Pole piece detection system and pole piece detection method

Abstract

The embodiment of the invention provides a pole piece detection system and a pole piece detection method, and the system comprises a transmission assembly which is used for transmitting a pole piece and feeding back the position information of the pole piece, and the position information comprises a position and a timestamp corresponding to the position; the controller is connected with the transmission assembly and used for determining the predicted time when the pole piece reaches the preset photographing position according to the position information; and the camera is connected with the controller and is used for photographing the edge of the pole piece to obtain an edge image of the pole piece when the photographing trigger signal is received, and the photographing trigger signal is a signal generated based on the prediction time, and the edge image is used for carrying out burr detection on the pole piece. Therefore, the camera is triggered to photograph through the prediction time when the pole piece reaches the preset photographing position, so that the position deviation of the pole piece in the photographing process can be avoided, the accuracy of the edge image of the pole piece is improved, and the pole piece detection precision is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pole piece detection, and in particular to a pole piece detection system and a pole piece detection method. BACKGROUND

[0002] With the wide application of power batteries, in order to ensure the safety of the battery, the quality requirement of the battery in manufacturing is also more and more strict. In the process of manufacturing the battery cell, the edge of the pole piece needs to be photographed during the high-speed movement of the pole piece, so as to detect the burr of the pole piece according to the edge image obtained by the photographing. However, the accuracy of the edge image obtained by the current photographing of the pole piece is low, thereby affecting the precision of the subsequent pole piece detection. SUMMARY

[0003] The embodiments of the present application provide a pole piece detection system and a pole piece detection method to solve the technical problem of poor pole piece detection precision.

[0004] In a first aspect, the embodiments of the present application provide a pole piece detection system, which comprises:

[0005] A transmission component is configured to transmit the pole piece and feed back position information of the pole piece, the position information comprising a position and a time stamp corresponding to the position;

[0006] A controller is connected with the transmission component and configured to determine a predicted time when the pole piece reaches a preset photographing position according to the position information;

[0007] A camera is connected with the controller and configured to photograph the edge of the pole piece to obtain an edge image of the pole piece in the case that a photographing trigger signal is received, the photographing trigger signal being a signal generated based on the predicted time, the edge image being used for burr detection of the pole piece.

[0008] In the embodiments, the transmission component can feed back the position information with the time stamp when transmitting the pole piece, the controller can calculate the predicted time when the pole piece reaches the preset photographing position in advance according to the position information with the time stamp, and the camera can receive the photographing trigger signal output at the predicted time, so as to photograph the edge of the pole piece in response to the photographing trigger signal and obtain the edge image used for burr detection. Since the photographing trigger signal triggering the camera to photograph is generated according to the predicted time determined in advance, the edge of the pole piece can be photographed in time and accurately when the pole piece reaches the preset photographing position, the photographing trigger is not affected by the refresh period of signal input and output, the position deviation caused by the movement of the pole piece when photographing due to the signal refresh period is reduced, the accuracy of the edge image is improved, and the precision of the pole piece detection is improved.

[0009] In some embodiments, the transmission component comprises:

[0010] A manipulator is configured to transmit the pole piece.

[0011] The motor is connected with the manipulator and the controller, and is configured to drive the manipulator to transmit the pole piece and feed back the position of the pole piece to the controller.

[0012] The encoder is connected with the motor, the controller and the camera, and is configured to feed back the time stamp corresponding to the position of the pole piece to the controller, and output a shooting trigger signal to the camera in response to the predicted time.

[0013] In the embodiment, the encoder can output the shooting trigger signal to the camera at the predicted time after the controller determines the predicted time when the pole piece reaches the preset shooting position, so that the process of outputting the shooting trigger signal is further prevented from being affected by the refresh period of the signal input and output of the controller, and the accuracy of the edge image is further improved.

[0014] In some embodiments, the transmission assembly is configured to uniformly transmit the pole piece.

[0015] In the embodiment, the transmission assembly can maintain the uniform transmission state of the pole piece, thereby providing convenience for the camera to shoot the edge of the pole piece.

[0016] In some embodiments, the controller is further configured to:

[0017] obtain the transmission speed of the transmission assembly;

[0018] determine the predicted time when the pole piece reaches the preset shooting position according to the position information and the transmission speed.

[0019] In the embodiment, the predicted time when the pole piece reaches the preset shooting position can be calculated by the position information of the pole piece with the time stamp and the transmission speed of the transmission assembly, so that the shooting trigger signal can be output according to the predicted time, the edge of the pole piece is timely and accurately shot when the pole piece reaches the preset shooting position, and the accuracy of the edge image is improved.

[0020] In some embodiments, the preset shooting position includes at least two shooting sub-positions, and the controller is further configured to:

[0021] In the case where the camera shoots the edge of the pole piece in response to the shooting trigger signal output by the camera at the predicted time when the pole piece reaches the i-th shooting sub-position, the transmission speed of the transmission assembly is updated according to the (i-1)-th shooting sub-position, the time stamp corresponding to the (i-1)-th shooting sub-position, the i-th shooting sub-position and the time stamp corresponding to the i-th shooting sub-position;

[0022] The predicted time when the pole piece reaches the (i+1)-th shooting sub-position is determined according to the i-th shooting sub-position, the time stamp corresponding to the i-th shooting sub-position and the updated transmission speed, i is a positive integer.

[0023] In the embodiment, since the transmission speed of the transmission assembly can fluctuate, the transmission speed of the transmission assembly can be updated according to the last photographing sub-position and the corresponding timestamp, and the current photographing sub-position and the corresponding timestamp, and the predicted time of the next photographing sub-position is calculated based on the updated transmission speed, so that the adverse effects caused by the fluctuation of the transmission speed are reduced, the accuracy of the predicted time is improved, and the accuracy of the edge image is further improved.

[0024] In some embodiments, the camera is further configured to:

[0025] In a case where the photographing stop signal is received, the photographing of the edge of the pole piece is stopped, wherein the photographing stop signal is a signal generated in a case where the pole piece leaves the preset photographing position.

[0026] In the embodiment, the photographing stop signal can be generated when the pole piece leaves the preset photographing position, so that the camera stops photographing the edge of the pole piece, and the accuracy of the edge image is further improved.

[0027] In some embodiments, the controller is further configured to:

[0028] In a case where the position information indicates that the pole piece leaves the preset photographing position, the photographing stop signal is output to the camera.

[0029] In the embodiment, whether the pole piece leaves the preset photographing position can be determined in real time according to the position in the position information, and the photographing stop signal is output when it is determined that the pole piece leaves the preset photographing position.

[0030] In some embodiments, the controller is further configured to:

[0031] According to the position information, a predicted leaving time at which the pole piece leaves the preset photographing position is determined, and the predicted leaving time is used to output the photographing stop signal at the predicted leaving time.

[0032] In the embodiment, the predicted leaving time at which the pole piece leaves the preset photographing position can also be calculated in advance according to the position information with the timestamp, and the camera can receive the photographing stop signal output at the predicted leaving time to stop photographing the edge of the pole piece.

[0033] In a second aspect, the embodiments of the present application further provide a pole piece detection method, which comprises:

[0034] The pole piece is transmitted by a transmission assembly, and position information of the pole piece is fed back, the position information comprising a position and a timestamp corresponding to the position;

[0035] The controller determines a predicted time at which the pole piece reaches a preset photographing position according to the position information.

[0036] The camera photographs the edge of the pole piece to obtain an edge image of the pole piece by receiving a photograph trigger signal in a case that the photograph trigger signal is a signal generated based on the predicted time.

[0037] In the embodiment, the transmission component can feed back the position information with the timestamp when transmitting the pole piece, the controller can calculate the predicted time when the pole piece reaches the preset photographing position in advance according to the position information with the timestamp, and the camera can receive the photograph trigger signal output at the predicted time, so as to photograph the edge of the pole piece in response to the photograph trigger signal and obtain the edge image for burr detection. Since the photograph trigger signal for triggering the camera to photograph is generated according to the predicted time determined in advance, the edge of the pole piece can be photographed in time and accurately when the pole piece reaches the preset photographing position, the photograph trigger is not affected by the refresh period of signal input and output, the position deviation caused by the movement of the pole piece when photographing due to the signal refresh period is reduced, the accuracy of the edge image is improved, and the detection precision of the pole piece is improved.

[0038] In some embodiments, the transmission component includes an encoder, and before the camera photographs the edge of the pole piece to obtain an edge image of the pole piece by receiving a photograph trigger signal in a case that the photograph trigger signal is a signal generated based on the predicted time, the method further includes:

[0039] The controller controls the encoder to output the photograph trigger signal to the camera at the predicted time.

[0040] In the embodiment, the controller can determine the predicted time when the pole piece reaches the preset photographing position in advance, and the encoder can output the photograph trigger signal to the camera at the predicted time, which further avoids the process of outputting the photograph trigger signal from being affected by the refresh period of signal input and output of the controller, thereby further improving the accuracy of the edge image.

[0041] In some embodiments, the pole piece is transmitted by the transmission component, including:

[0042] The pole piece is transmitted at a constant speed by the transmission component.

[0043] In the embodiment, the transmission component can maintain a constant speed to transmit the pole piece, which provides convenience for the camera to photograph the edge of the pole piece.

[0044] In some embodiments, the predicted time when the pole piece reaches the preset photographing position is determined according to the position information, including:

[0045] The transmission speed of the transmission component is obtained;

[0046] The predicted time when the pole piece reaches the preset photographing position is determined according to the position information and the transmission speed.

[0047] In the embodiment, the predicted time of the pole piece reaching the preset photographing position can be calculated through the time-stamped position information of the pole piece and the transmission speed of the transmission component transmitting the pole piece, so that the photographing trigger signal can be output according to the predicted time, so that the edge of the pole piece can be photographed in time and accurately when the pole piece reaches the preset photographing position, and the accuracy of the edge image is improved.

[0048] In some embodiments, the preset photographing position includes at least two photographing sub-positions, and the predicted time of the pole piece reaching the preset photographing position is determined according to the position information, including:

[0049] In the case that the camera photographs the edge of the pole piece in response to the photographing trigger signal output by the camera in response to the predicted time of the pole piece reaching the i-th photographing sub-position, the transmission speed of the transmission component is updated according to the i-1-th photographing sub-position, the time stamp corresponding to the i-1-th photographing sub-position, the i-th photographing sub-position and the time stamp corresponding to the i-th photographing sub-position.

[0050] According to the i-th photographing sub-position, the time stamp corresponding to the i-th photographing sub-position and the updated transmission speed, the predicted time of the pole piece reaching the i+1-th photographing sub-position is determined, i is a positive integer.

[0051] In the embodiment, since the transmission speed of the transmission component may fluctuate, the transmission speed of the transmission component can be updated according to the last photographing sub-position and the time stamp corresponding thereto, and the current photographing sub-position and the time stamp corresponding thereto, and the predicted time of the next photographing sub-position is calculated based on the updated transmission speed, thereby reducing the adverse effects caused by the fluctuation of the transmission speed and improving the accuracy of the predicted time, thereby further improving the accuracy of the edge image.

[0052] In some embodiments, after the camera photographs the edge of the pole piece to obtain the edge image of the pole piece in the case that the camera receives the photographing trigger signal, which is a signal generated based on the predicted time, the method further comprises:

[0053] The camera stops photographing the edge of the pole piece in the case that the camera receives the photographing stop signal, wherein the photographing stop signal is a signal generated in the case that the pole piece leaves the preset photographing position.

[0054] In the embodiment, the photographing stop signal can be generated when the pole piece leaves the preset photographing position, so that the camera stops photographing the edge of the pole piece, and the accuracy of the edge image is further improved.

[0055] In some embodiments, before the camera stops photographing the edge of the pole piece in the case that the camera receives the photographing stop signal, the method further comprises:

[0056] The controller outputs a photographing stop signal to the camera when the position information indicates that the pole piece has left the preset photographing position.

[0057] In this embodiment, whether the pole piece has left the preset photographing position can be determined directly according to the position in the position information in real time, and the photographing stop signal is output when it is determined that the pole piece has left the preset photographing position.

[0058] In some embodiments, before the camera stops photographing the edge of the pole piece when the photographing stop signal is received, the method further includes:

[0059] The controller determines a predicted leaving time when the pole piece leaves the preset photographing position according to the position information, and the predicted leaving time is used to output the photographing stop signal at the predicted leaving time.

[0060] In this embodiment, the predicted leaving time when the pole piece leaves the preset photographing position can also be calculated in advance according to the position information with a time stamp, and the camera can receive the photographing stop signal output at the predicted leaving time to stop photographing the edge of the pole piece.

[0061] In a third aspect, an electronic device is provided, and the device includes a processor and a memory storing program instructions; and the processor implements the method of the second aspect when executing the program instructions.

[0062] In a fourth aspect, a machine-readable storage medium is provided, and the machine-readable storage medium stores program instructions, and the program instructions are executed by a processor to implement the method of the second aspect.

[0063] In a fifth aspect, a computer program product is provided, and instructions in the computer program product are executed by a processor of an electronic device to cause the electronic device to execute the method of the second aspect.

[0064] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following will be described in detail. BRIEF DESCRIPTION OF DRAWINGS

[0065] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the drawings.

[0066] Figure 1A structural schematic diagram of an electrode sheet detection system provided by an embodiment of the present application;

[0067] Figure 2 A schematic diagram of a camera and an electrode sheet in an electrode sheet detection system provided by an embodiment of the present application;

[0068] Figure 3 A schematic diagram of a camera, a transmission assembly and an electrode sheet in an electrode sheet detection system provided by an embodiment of the present application;

[0069] Figure 4 A photographing logic schematic diagram in an electrode sheet detection system provided by an embodiment of the present application;

[0070] Figure 5 A flowchart of an electrode sheet detection method provided by an embodiment of the present application;

[0071] Figure 6 A structural schematic diagram of an electronic device provided by an embodiment of the present application.

[0072] In the drawings, the drawings are not drawn according to the actual scale.

[0073] Reference signs:

[0074] 100, an electrode sheet detection system; 110, a transmission assembly; 120, a controller; 130, a camera;

[0075] 111, a mechanical hand; 1111, a suction cup;

[0076] 200, an electrode sheet;

[0077] 600, an electronic device; 601, a processor; 602, a memory; 603, a communication interface; 604, a bus. DETAILED DESCRIPTION

[0078] The embodiments of the present application will be further described in detail below with reference to the drawings and embodiments. The detailed description of the following embodiments and the drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application, i.e., the present application is not limited to the described embodiments.

[0079] In the description of the present application, it is necessary to explain that, unless otherwise stated, the meaning of "a plurality of" is more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error.

[0080] Reference to "embodiments" in this application means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily all refer to the same embodiment, nor is it independent or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments.

[0081] In the related art, with the wide application of power batteries, in order to ensure the safety of the battery, the quality requirements for the battery in manufacturing are also more and more strict. In the process of manufacturing the battery cell, the edge of the pole piece needs to be photographed during the high-speed movement of the pole piece, so as to detect the burr of the pole piece according to the edge image obtained by photographing.

[0082] The applicant finds that in the process of detecting the pole piece, the position of the pole piece is usually detected by a position sensor, and after detecting that the position of the pole piece has been transmitted to a preset photographing position, an output signal is output to trigger the camera to take a picture. However, this process of inputting the position of the pole piece, detecting whether the position of the pole piece reaches the preset photographing position, and then outputting the signal to trigger the camera to take a picture requires a certain time, that is, the photographing trigger is affected by the refresh period of signal input and output, and during this time, the pole piece is still moving, which causes the position deviation of the pole piece after moving when the camera takes a picture of the edge of the pole piece, resulting in that the edge image obtained by photographing the pole piece is inaccurate, affecting the accuracy of subsequent burr detection of the pole piece. If the photographing is performed in advance, the timing of the advance is different under different transmission speeds, and there are problems of debugging difficulty and unstable photographing result.

[0083] Based on this, the present application provides a pole piece detection system and a pole piece detection method to solve the above technical problems. First, the pole piece detection system provided by the embodiments of the present application is introduced as follows.

[0084] As shown in Figure 1 The present application provides a pole piece detection system 100, which comprises:

[0085] The transmission component 110 is configured to transmit the pole piece and feed back position information of the pole piece, the position information comprising a position and a timestamp corresponding to the position;

[0086] The controller 120 is connected with the transmission component 110 and configured to determine a predicted time for the pole piece to reach a preset photographing position according to the position information.

[0087] The camera 130 is connected with the controller 120 and configured to, in a case that a photographing trigger signal is received, the photographing trigger signal being a signal generated based on the predicted time, photograph an edge of the pole piece to obtain an edge image of the pole piece, the edge image being used for burr detection of the pole piece.

[0088] In the embodiment, the pole piece detection system 100 can comprise the transmission component 110 and the camera 130. The pole piece can be placed on the transmission component 110 and transmitted by the transmission component 110 towards a preset photographing position, the preset photographing position can correspond to a position set by the camera 130, and the preset photographing position is located within a field of view of the camera 130. Figure 2 As shown, when the pole piece 200 moves to the preset photographing position, the camera 130 can photograph an edge of the pole piece to obtain an edge image. It can be understood that the number of the camera 130 can be multiple, and the cameras 130 are distributed on both sides of the pole piece 200 and are respectively used for photographing edge images on both sides of the pole piece 200.

[0089] The pole piece detection system 100 can further comprise the controller 120, the controller 120 can be in communication connection with the transmission component 110 and the camera 130, and is configured to transmit related information and signals.

[0090] When the transmission component 110 transmits the pole piece, the transmission component 110 can feed back position information of the pole piece in real time, the position information can comprise a position of the pole piece and a timestamp corresponding to the position. The controller 120 can determine a time length required for the pole piece to reach the preset photographing position according to a distance between the position in the position information and the preset photographing position in a case that the position information fed back by the transmission component 110 is received, and further calculate a predicted time for the pole piece to reach the preset photographing position according to the timestamp corresponding to the position and the determined time length.

[0091] In some examples, the transmission component 110 can transmit the pole piece to a preset photographing position by preset accelerated motion, and adopt preset fixed speed to move at a constant speed when reaching the preset photographing position, so that the camera can stably photograph the edge of the pole piece. At this time, the above motion law can be used to determine the corresponding relationship between the different distances between different positions and the preset photographing position and the respective required time lengths, and then in the pole piece detection process, the controller 120 can match the required time length of the pole piece to reach the preset photographing position from the above corresponding relationship according to the distance between the position in the position information and the preset photographing position.

[0092] In other examples, the transmission component 110 can also always adopt fixed transmission speed to uniformly transmit the pole piece, at this time, the ratio of the distance between the position in the position information and the preset photographing position and the transmission speed can be directly calculated, and the ratio is determined as the time length required for the pole piece to reach the preset photographing position.

[0093] After the controller 120 determines the predicted time of the pole piece reaching the preset photographing position, the controller 120 can output a photographing trigger signal to the camera 130 at the predicted time. It can also be that the encoder directly sets the output of the predicted time as the photographing trigger signal, and when the timestamp is the predicted time, the photographing trigger signal can be output to the camera.

[0094] When the camera 130 receives the photographing trigger signal, it can respond to the photographing trigger signal to photograph the edge of the pole piece to obtain an edge image of the pole piece, and the edge image is used for burr detection of the pole piece.

[0095] In the embodiment, the transmission component can feed back position information with a timestamp when transmitting the pole piece, the controller can pre-calculate the predicted time of the pole piece reaching the preset photographing position according to the position information with a timestamp, and the camera can receive the photographing trigger signal output at the predicted time, so as to respond to the photographing trigger signal to photograph the edge of the pole piece and obtain an edge image for burr detection. Since the photographing trigger signal triggering the camera to photograph is generated according to the pre-determined predicted time, the edge of the pole piece can be timely and accurately photographed when the pole piece reaches the preset photographing position, the photographing trigger is not affected by the refresh period of signal input and output, the position deviation caused by the movement of the pole piece when photographing due to the signal refresh period is reduced, the accuracy of the edge image is improved, and the precision of the pole piece detection is improved.

[0096] In some embodiments, the transmission component can include:

[0097] A manipulator for transmitting the pole piece;

[0098] A motor connected with the manipulator and the controller, for driving the manipulator to transmit the pole piece and feeding back the position of the pole piece to the controller.

[0099] The encoder is connected with the motor, the controller and the camera, and is configured to feed back a time stamp corresponding to the position of the pole piece to the controller, and output a photograph triggering signal to the camera in response to the predicted time.

[0100] In the embodiment, as shown in Figure 3 The transmission assembly 110 can include a mechanical hand 111, a motor (not shown in the figure) and an encoder (not shown in the figure). The mechanical hand 111 can be provided with a suction cup 1111, which is used to adsorb the pole piece 200, so that the pole piece 200 can move with the mechanical hand 111 to achieve the purpose of transmitting the pole piece 200.

[0101] The motor can be connected with the mechanical hand 111, and the shaft of the motor rotates to drive the mechanical hand 111 to move, so as to realize the transmission of the pole piece 200 by the mechanical hand 111. The motor can also be provided with a position sensor, which is in communication connection with the controller, so as to feed back the position of the pole piece to the controller.

[0102] The encoder can be in communication connection with the motor and the controller, so as to feed back a time stamp corresponding to the position of the pole piece 200 to the controller. The position of the pole piece 200 is bound with the time stamp, which has timeliness and traceability for the position of the pole piece 200. The controller can calculate the predicted time of the pole piece 200 reaching the preset photographing position through the position information with the time stamp, so as to trigger the camera to take a photograph according to the predicted time, so that the pole piece 200 reaching the preset photographing position and the camera taking a photograph can be synchronized at the same time, the consistency and stability of the action are realized, and the loss of position accuracy caused by different actions is reduced.

[0103] The predicted time of the pole piece 200 reaching the preset photographing position calculated by the controller is taken as the time stamp of the output photograph triggering signal, and when the time stamp fed back by the encoder is the predicted time, the encoder can set the output of the time stamp as "ON" (i.e. the photograph triggering signal), and the camera 130 can respond to "ON" to take a photograph of the edge of the pole piece 200. By using the feedback time stamp of the encoder, the photograph triggering signal is output to the camera 130 in response to the predicted time, which can not be affected by the time of the processing process of the controller, and the digital output signal is set to "ON" at any predicted time to trigger the camera 130 to take a photograph in time.

[0104] In the embodiment, after the predicted time of the pole piece reaching the preset photographing position is determined by the controller, the encoder can directly output the photograph triggering signal to the camera at the predicted time, which further avoids the influence of the refreshing period of the signal input and output of the controller on the process of outputting the photograph triggering signal, thereby further improving the accuracy of the edge image.

[0105] In some embodiments, the transmission assembly is configured to uniformly transmit the pole piece.

[0106] In the embodiment, the transmission component can keep the uniform speed of the polar plate, which facilitates the camera to take a picture of the edge of the polar plate.

[0107] In some embodiments, the controller can be further configured to:

[0108] acquire a transmission speed of the transmission component;

[0109] determine a predicted time for the polar plate to reach the preset photographing position according to the position information and the transmission speed.

[0110] In the embodiment, the transmission component can keep the uniform speed of the polar plate, which facilitates the camera to take a picture of the edge of the polar plate.

[0111] In the embodiment, the transmission component can keep the uniform speed of the polar plate, which facilitates the camera to take a picture of the edge of the polar plate.

[0112] In some embodiments, the preset photographing position comprises at least two photographing sub-positions, and the controller can be further configured to:

[0113] In the case where the camera takes a picture of the edge of the polar plate in response to the photographing trigger signal output by the camera in response to the predicted time for the polar plate to reach the i-th photographing sub-position, the transmission speed of the transmission component is updated according to the (i-1)-th photographing sub-position, the timestamp corresponding to the (i-1)-th photographing sub-position, the i-th photographing sub-position and the timestamp corresponding to the i-th photographing sub-position.

[0114] The predicted time for the polar plate to reach the (i+1)-th photographing sub-position is determined according to the i-th photographing sub-position, the timestamp corresponding to the i-th photographing sub-position and the updated transmission speed, where i is a positive integer.

[0115] In the embodiment, the preset photographing position can comprise at least two photographing sub-positions, and in order to facilitate the understanding of the technical solutions of the embodiments of the present application, the following will be described by taking the case where the preset photographing position comprises a first photographing sub-position and a second photographing sub-position as an example.

[0116] When the transmission assembly starts to transmit the pole piece, the transmission assembly can feed back the position 1 at this time and the corresponding time stamp t1 to the controller, and the controller can also acquire the transmission speed v of the transmission assembly. At this time, the distance L1 between the first photographing sub-position and the position 1 can be calculated, the ratio of the distance L1 to the transmission speed v is calculated to obtain the time length Δt1 required for the pole piece to reach the first photographing sub-position from the position 1, and the sum of the time stamp t1 and the time length Δt1 is determined as the predicted time T1 of the pole piece reaching the first photographing sub-position.

[0117] The camera can output a photographing trigger signal in response to the predicted time T1, and photograph the edge of the pole piece. At this time, the controller can calculate the predicted time of the pole piece reaching the second photographing sub-position.

[0118] It can be understood that, in an ideal state, the time stamp corresponding to the first photographing sub-position is T1, however, in the actual pole piece detection process, the transmission speed of the transmission assembly may fluctuate when transmitting the pole piece, resulting in a slight deviation between the time stamp corresponding to the first photographing sub-position and the predicted time T1.

[0119] At this time, the time stamp t2 corresponding to the first photographing sub-position can be acquired, and the fluctuated transmission speed v' (i.e., the updated transmission speed) can be calculated according to the distance L1 between the first photographing sub-position and the position 1, and the difference between the time stamp t2 corresponding to the first photographing sub-position and the time stamp t1 corresponding to the position 1.

[0120] The distance L2 between the second photographing sub-position and the first photographing sub-position can be continuously calculated, the ratio of the distance L2 to the transmission speed v' is determined as the time length Δt2 required for the pole piece to reach the second photographing sub-position from the first photographing sub-position, and the sum of the time stamp t2 and the time length Δt2 is determined as the predicted time T2 of the pole piece reaching the second photographing sub-position.

[0121] In the embodiment, since the transmission speed of the transmission assembly may fluctuate, the transmission speed of the transmission assembly can be updated according to the last photographing sub-position and the corresponding time stamp, and the current photographing sub-position and the corresponding time stamp, and the predicted time of the next photographing sub-position can be calculated based on the updated transmission speed, thereby reducing the adverse effects caused by the fluctuation of the transmission speed, improving the accuracy of the predicted time, and further improving the accuracy of the edge image.

[0122] In some embodiments, the camera can also be used to:

[0123] In the case of receiving the photographing stop signal, the photographing of the edge of the pole piece is stopped, wherein the photographing stop signal is a signal generated in the case that the pole piece leaves the preset photographing position.

[0124] In this embodiment, after receiving the photograph trigger signal, the camera can continuously photograph the edge of the polaroid until receiving a photograph stop signal, and can stop photographing the edge of the polaroid in response to the photograph stop signal. The photograph stop signal can be a signal generated when the polaroid leaves the preset photographing position.

[0125] In this embodiment, the photograph stop signal can be generated when the polaroid leaves the preset photographing position, so that the camera stops photographing the edge of the polaroid, further improving the accuracy of the edge image.

[0126] In some embodiments, the controller can be further configured to:

[0127] output the photograph stop signal to the camera when the position information indicates that the polaroid leaves the preset photographing position.

[0128] In this embodiment, the controller can determine whether the polaroid leaves the preset photographing position according to the position of the polaroid fed back by the transmission assembly, and output the photograph stop signal to the camera when the position of the polaroid has left the preset photographing position, so that the camera can stop photographing the edge of the polaroid in response to the photograph stop signal.

[0129] In this embodiment, whether the polaroid leaves the preset photographing position can be determined in real time according to the position in the position information, and the photograph stop signal can be output when it is determined that the polaroid leaves the preset photographing position.

[0130] In some embodiments, the controller can be further configured to:

[0131] determine a predicted leaving time when the polaroid leaves the preset photographing position according to the position information, and output the photograph stop signal at the predicted leaving time.

[0132] In this embodiment, the controller can also calculate the predicted leaving time when the polaroid leaves the preset photographing position in advance according to the position information with a timestamp, and output the photograph stop signal when the timestamp is the predicted leaving time.

[0133] For example, the controller can output the photograph stop signal to the camera when the timestamp fed back by the transmission assembly is the predicted leaving time. Alternatively, the controller can set the output of the predicted leaving time as the photograph stop signal in the encoder after determining the predicted leaving time, so that the encoder can output the photograph stop signal to the camera directly at the predicted leaving time.

[0134] In this embodiment, the predicted leaving time when the polaroid leaves the preset photographing position can also be calculated in advance according to the position information with a timestamp, and the camera can receive the photograph stop signal output at the predicted leaving time to stop photographing the edge of the polaroid.

[0135] As Figure 4 shown in the above pole piece detection system, the photographing logic can include the following steps:

[0136] Step 401, the manipulator adsorbs the pole piece;

[0137] Step 402, the manipulator transports the pole piece towards the preset photographing position;

[0138] Step 403, the controller calculates the predicted time when the pole piece reaches the preset photographing position according to the position information with time stamp fed back by the motor;

[0139] Step 404, the encoder outputs a photographing trigger signal to trigger the camera to photograph the edge of the pole piece at the predicted time;

[0140] Step 405, the camera stops photographing until the manipulator leaves the preset photographing position.

[0141] Based on the above pole piece detection system, the embodiment of the present application provides a pole piece detection method, which can include the following steps:

[0142] Step 501, the pole piece is transported by the transmission assembly, and the position information of the pole piece is fed back, the position information including the position and the time stamp corresponding to the position;

[0143] Step 502, the controller determines the predicted time when the pole piece reaches the preset photographing position according to the position information;

[0144] Step 503, the camera photographs the edge of the pole piece to obtain the edge image of the pole piece under the condition that the photographing trigger signal is received, the photographing trigger signal being a signal generated based on the predicted time, the edge image being used for burr detection of the pole piece.

[0145] In the embodiment, the transmission assembly can feed back the position information with time stamp when transporting the pole piece, the controller can calculate the predicted time when the pole piece reaches the preset photographing position in advance according to the position information with time stamp, and the camera can receive the photographing trigger signal output at the predicted time, so as to photograph the edge of the pole piece in response to the photographing trigger signal and obtain the edge image used for burr detection. Since the photographing trigger signal triggering the camera to photograph is generated according to the predicted time determined in advance, the edge of the pole piece can be photographed in time and accurately when the pole piece reaches the preset photographing position, the photographing trigger is not affected by the refresh period of signal input and output, the position deviation caused by the movement of the pole piece when photographing due to the refresh period of signal is reduced, the accuracy of the edge image is improved, and thus the precision of the pole piece detection is improved.

[0146] In some embodiments, the transmission component comprises an encoder, and before the edge of the polar plate is photographed to obtain the edge image of the polar plate by the camera in response to the photographing trigger signal which is a signal generated based on the predicted time, the method further comprises:

[0147] The encoder is controlled by the controller to output the photographing trigger signal to the camera at the predicted time.

[0148] In this embodiment, the predicted time at which the polar plate reaches the preset photographing position can be determined in advance by the controller, and the photographing trigger signal is directly output to the camera by the encoder at the predicted time, further avoiding the process of outputting the photographing trigger signal being affected by the refresh period of the signal input and output of the controller, thereby further improving the accuracy of the edge image.

[0149] In some embodiments, the polar plate is transmitted by the transmission component, comprising:

[0150] The polar plate is transmitted at a constant speed by the transmission component.

[0151] In this embodiment, the transmission component can maintain a constant speed state to transmit the polar plate, providing convenience for the camera to photograph the edge of the polar plate subsequently.

[0152] In some embodiments, according to the position information, the predicted time at which the polar plate reaches the preset photographing position is determined, comprising:

[0153] The transmission speed of the transmission component is obtained;

[0154] According to the position information and the transmission speed, the predicted time at which the polar plate reaches the preset photographing position is determined.

[0155] In this embodiment, the predicted time at which the polar plate reaches the preset photographing position can be calculated by the position information of the polar plate with a timestamp and the transmission speed of the transmission component transmitting the polar plate, so that the photographing trigger signal can be output according to the predicted time to timely and accurately photograph the edge of the polar plate when the polar plate reaches the preset photographing position, thereby improving the accuracy of the edge image.

[0156] In some embodiments, the preset photographing position comprises at least two photographing sub-positions, and according to the position information, the predicted time at which the polar plate reaches the preset photographing position is determined, comprising:

[0157] In the case where the edge of the polar plate is photographed by the camera in response to the photographing trigger signal output by the camera at the predicted time at which the polar plate reaches the i-th photographing sub-position, the transmission speed of the transmission component is updated according to the i-1-th photographing sub-position, the timestamp corresponding to the i-1-th photographing sub-position, the i-th photographing sub-position and the timestamp corresponding to the i-th photographing sub-position;

[0158] Determine a predicted time of the pole piece reaching an (i+1)th photographing sub-position according to the (i)th photographing sub-position, a timestamp corresponding to the (i)th photographing sub-position, and the updated transmission speed, where i is a positive integer.

[0159] In this embodiment, since the transmission speed of the transmission assembly can fluctuate to a certain extent, the transmission speed of the transmission assembly can be updated according to the last photographing sub-position and the timestamp corresponding thereto, and the current photographing sub-position and the timestamp corresponding thereto, and the predicted time of the next photographing sub-position can be calculated based on the updated transmission speed, thereby reducing the adverse effects caused by the fluctuation of the transmission speed, improving the accuracy of the predicted time, and further improving the accuracy of the edge image.

[0160] In some embodiments, after the edge of the pole piece is photographed by the camera to obtain the edge image of the pole piece in the case where the photographing trigger signal is received, the photographing trigger signal being a signal generated based on the predicted time, the method further comprises:

[0161] Stopping photographing the edge of the pole piece by the camera in the case where the photographing stop signal is received, wherein the photographing stop signal is a signal generated in the case where the pole piece leaves the preset photographing position.

[0162] In this embodiment, the photographing stop signal can be generated when the pole piece leaves the preset photographing position, so that the camera stops photographing the edge of the pole piece, and the accuracy of the edge image is further improved.

[0163] In some embodiments, before stopping photographing the edge of the pole piece by the camera in the case where the photographing stop signal is received, the method further comprises:

[0164] Outputting, by the controller, the photographing stop signal to the camera in the case where the position information indicates that the pole piece leaves the preset photographing position.

[0165] In this embodiment, whether the pole piece leaves the preset photographing position can be determined in real time according to the position in the position information, and the photographing stop signal is outputted when it is determined that the pole piece leaves the preset photographing position.

[0166] In some embodiments, before stopping photographing the edge of the pole piece by the camera in the case where the photographing stop signal is received, the method further comprises:

[0167] Determining, by the controller, a predicted leaving time of the pole piece leaving the preset photographing position according to the position information, the predicted leaving time being used for outputting the photographing stop signal at the predicted leaving time.

[0168] In the embodiment, the predicted leaving time of the film from the preset photographing position can also be calculated in advance according to the location information with the timestamp, and the camera can receive a photographing stop signal output at the predicted leaving time to stop photographing the edge of the film.

[0169] It should be noted that the film detection method described above and the film detection system of the method embodiments of the present application are based on the same concept, and are methods corresponding to the film detection system described above. All implementation manners in the film detection system embodiments are applicable to the method embodiments, and the specific functions and technical effects brought by the method embodiments can be referred to the method embodiments part, which will not be described here.

[0170] Figure 6 The structure schematic diagram of the electronic device provided in the embodiments of the present application is shown.

[0171] The electronic device 600 can include a processor 601 and a memory 602 storing programs or instructions. The processor 601 implements the steps in any of the above method embodiments when executing the programs.

[0172] For example, the programs can be divided into one or more modules / units, which are stored in the memory 602 and executed by the processor 601 to complete the present application. One or more modules / units can be a series of program instruction segments capable of completing a specific function, which are used to describe the execution process of the programs in the device.

[0173] Specifically, the processor 601 described above can include a central processing unit (CPU), or a specific integrated circuit (ASIC), or can be configured as one or more integrated circuits that implement the embodiments of the present application.

[0174] The memory 602 can include a mass storage for data or instructions. For example, but not limited to, the memory 602 can include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disc, a magneto-optical disc, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of the above. In appropriate cases, the memory 602 can include removable or non-removable (or fixed) media. In appropriate cases, the memory 602 can be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 602 is a non-volatile solid-state memory.

[0175] The memory can include read-only memory (ROM), random access memory (RAM), magnetic disk storage mediums devices, optical storage mediums devices, flash memory devices, electrical, optical, or other physical / tangible memory storage devices. Thus, in general, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software that, when executed (by one or more processors), is operable to perform the operations described with reference to the methods according to an aspect of the present disclosure.

[0176] The processor 601 implements any one of the above-described embodiments by reading and executing a program or an instruction stored in the memory 602.

[0177] In one example, the electronic device further includes a communication interface 603 and a bus 604. The processor 601, the memory 602, and the communication interface 603 are connected through the bus 604 and complete communication therebetween.

[0178] The communication interface 603 is mainly used to realize the communication between the modules, devices, units, and / or equipment in the embodiments of the present application.

[0179] The bus 604 includes hardware, software, or both, that couples components of the online data traffic billing device to each other. By way of example, and not limitation, the bus can include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand (IB) interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association local (VLB) bus, or another suitable bus or a combination of two or more of these. Where appropriate, the bus 604 can include one or more buses. Although the present application describes and illustrates a particular bus, the present application contemplates any suitable bus or interconnect.

[0180] In addition, in combination with the method in the above-described embodiments, the embodiments of the present application can provide a machine readable storage medium to implement. The machine readable storage medium has a program or instruction stored thereon; the program or instruction is executed by the processor to implement any one of the above-described embodiments. The machine readable storage medium can be read by a machine such as a computer.

[0181] The chip provided by the embodiment of the present application also can be called a system chip, a chip system, a system on chip, or the like.

[0182] It should be understood that the chip mentioned in the embodiment of the present application can also be called a system chip, a chip system, a system on chip, or the like.

[0183] The embodiment of the present application provides a computer program product stored in a machine-readable storage medium, which is executed by at least one processor to implement the processes of the above method embodiments and achieve the same technical effects. To avoid repetition, details are not repeated here.

[0184] It should be understood that the present application is not limited to the specific configurations and processes described above and shown in the drawings. For the sake of brevity, detailed descriptions of well-known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between steps, after understanding the spirit of the present application.

[0185] The functional modules shown in the structural block diagram described above can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a functional card, etc. When implemented in software, the elements of the present application are program or code segments used to perform the required tasks. The program or code segments can be stored in a machine-readable medium or transmitted through a data signal carried in a carrier wave over a transmission medium or communication link. The "machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segments can be downloaded via a computer grid such as the Internet, an intranet, etc.

[0186] It should also be noted that the exemplary embodiments mentioned in the present application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in an order different from the embodiments, or several steps can be performed simultaneously.

[0187] The computer program product of the present application can be a computer program embodied on a non-transitory computer readable medium. When the program is executed by a computer, the computer becomes an apparatus for practicing the application. Alternatively, the program can be downloaded and installed on the computer. The computer program product of the present application can also be embodied in a propagated signal on a carrier wave transmitted over a communication channel or a data stream embodied in a carrier wave transmitted over a communication channel. Examples of computer-readable media include an electronic, magnetic, optical, electromagnetic, infrared, and semiconductor system, system, or a propagated signal. Examples of computer-readable media include computer storage media. Computer storage media can be any available media that can be accessed by a computer. By way of example, and not limitation, such computer storage media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired computer program code in the form of computer-executable instructions or data structures and that can be accessed by a computer. Also, functional computer available media include a transmitted propagating signal or other communication medium. Disk and disc, as used herein, includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), and Blu-ray Disc®. Combinations of the above should also be included within the scope of computer-readable media.

[0188] Although the present application has been described with reference to preferred embodiments, it is to be understood that various modifications can be made without departing from the scope of the present application, and equivalents are intended to be within the scope of the present application. In particular, the technical features mentioned in each of the embodiments can be combined in any manner, provided that there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pole piece detection system characterized by, The system comprises: a transmission component configured to transmit the electrode sheet and feed back position information of the electrode sheet, the position information comprising a position and a timestamp corresponding to the position; a controller connected to the transmission component and configured to determine a predicted time for the electrode sheet to reach a preset photographing position according to the position information; a camera connected to the controller and configured to, in a case that a photographing trigger signal is received, the photographing trigger signal being a signal generated based on the predicted time, take a picture of an edge of the electrode sheet to obtain an edge image of the electrode sheet, the edge image being used for burr detection of the electrode sheet.

2. The system of claim 1, wherein, The transmission component comprises: a manipulator configured to transmit the electrode sheet; a motor connected to the manipulator and the controller and configured to drive the manipulator to transmit the electrode sheet and feed back the position of the electrode sheet to the controller; an encoder connected to the motor, the controller and the camera and configured to feed back, to the controller, the timestamp corresponding to the position of the electrode sheet and output, to the camera, the photographing trigger signal in response to the predicted time.

3. The system of claim 1, wherein, The transmission component is configured to transmit the electrode sheet at a constant speed.

4. The system of claim 3, wherein, The controller is further configured to: obtain a transmission speed of the transmission component; and determine the predicted time for the electrode sheet to reach the preset photographing position according to the position information and the transmission speed.

5. The system of claim 4, wherein, The preset photographing position comprises at least two photographing sub-positions, and the controller is further configured to: in a case that the camera takes a picture of the edge of the electrode sheet in response to a photographing trigger signal output by the camera in response to the predicted time for the electrode sheet to reach an i-th photographing sub-position, update the transmission speed of the transmission component according to an (i-1)-th photographing sub-position, a timestamp corresponding to the (i-1)-th photographing sub-position, the i-th photographing sub-position and a timestamp corresponding to the i-th photographing sub-position; and determine a predicted time for the electrode sheet to reach an (i+1)-th photographing sub-position according to the i-th photographing sub-position, the timestamp corresponding to the i-th photographing sub-position and the updated transmission speed, i being a positive integer.

6. The system of claim 1, wherein, The camera is further configured to: stop taking the picture of the edge of the electrode sheet in a case that a photographing stop signal is received, the photographing stop signal being a signal generated in a case that the electrode sheet leaves the preset photographing position.

7. The system of claim 6, wherein, The controller is further configured to: output the photographing stop signal to the camera in a case that the position information indicates that the electrode sheet leaves the preset photographing position.

8. The system of claim 6, wherein, The controller is further configured to: determine a predicted leaving time for the electrode sheet to leave the preset photographing position according to the position information, the predicted leaving time being used for outputting the photographing stop signal at the predicted leaving time.

9. A pole piece detection method characterized by, The method comprises: transmitting, by a transmission component, an electrode sheet and feeding back position information of the electrode sheet, the position information comprising a position and a timestamp corresponding to the position; determining, by a controller, a predicted time for the electrode sheet to reach a preset photographing position according to the position information; and The method further comprises, by the camera, taking a photo of the edge of the pole piece to obtain an edge image of the pole piece in a case that a photo trigger signal is received, the photo trigger signal being a signal generated based on the predicted time, the edge image being used for burr detection of the pole piece.

10. The method of claim 9, wherein, The transmission component comprises an encoder, and before the method further comprises, by the camera, taking a photo of the edge of the pole piece to obtain an edge image of the pole piece in a case that a photo trigger signal is received, the photo trigger signal being a signal generated based on the predicted time: controlling, by the controller, the encoder to output the photo trigger signal to the camera at the predicted time.

11. The method of claim 9, wherein, The method further comprises, by the transmission component: uniformly transmitting the pole piece.

12. The method of claim 11, wherein, The method further comprises, according to the position information, determining a predicted time at which the pole piece reaches a preset photo position, comprising: obtaining a transmission speed of the transmission component; determining, according to the position information and the transmission speed, the predicted time at which the pole piece reaches the preset photo position.

13. The method of claim 12, wherein, The preset photo position comprises at least two photo sub-positions, and the method further comprises, according to the position information, determining the predicted time at which the pole piece reaches the preset photo position, comprising: in a case that the camera takes a photo of the edge of the pole piece in response to a photo trigger signal output by the camera at a predicted time at which the pole piece reaches an i-th photo sub-position, updating the transmission speed of the transmission component according to an (i-1)-th photo sub-position, a timestamp corresponding to the (i-1)-th photo sub-position, the i-th photo sub-position, and a timestamp corresponding to the i-th photo sub-position, i being a positive integer; determining, according to the i-th photo sub-position, the timestamp corresponding to the i-th photo sub-position, and the updated transmission speed, a predicted time at which the pole piece reaches an (i+1)-th photo sub-position.

14. The method of claim 9, wherein, The method further comprises, by the camera, stopping taking a photo of the edge of the pole piece in a case that a photo stop signal is received, wherein the photo stop signal is a signal generated in a case that the pole piece leaves the preset photo position. The method further comprises, by the camera, stopping taking a photo of the edge of the pole piece in a case that a photo stop signal is received, wherein the photo stop signal is a signal generated in a case that the pole piece leaves the preset photo position.

15. The method of claim 14, wherein, The method further comprises, by the camera, stopping taking a photo of the edge of the pole piece in a case that a photo stop signal is received, wherein the photo stop signal is a signal generated in a case that the pole piece leaves the preset photo position. The method further comprises, by the controller, determining, according to the position information, a predicted leaving time at which the pole piece leaves the preset photo position, the predicted leaving time being used for outputting the photo stop signal at the predicted leaving time.

16. The method of claim 14, wherein, ​ ​

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