Monitoring data generation system, monitoring data generation method, and electrode

Abstract

The present invention relates to a monitoring data generation system comprising: a plurality of facility units including at least one sensor that senses facility data, and installed along an electrode sheet; a controller that collects coordinate data indicating the position of the electrode sheet when the sensor senses the facility data; a unit ID allocation server that collects, at predetermined time intervals, the coordinate data and the facility data sensed by the sensor, allocates a unit ID of a facility unit to which each sensor belongs to the facility data and time data at which the facility data is collected, and allocates the unit ID of the facility unit to which each sensor belongs to the coordinate data and time data at which the coordinate data is collected; and a monitoring data generation server that generates monitoring data by matching the facility data with the coordinate data on the basis of the collected time data and the unit ID.

Description

Monitoring data generation system, monitoring data generation method, and electrode

[0001] The present invention relates to a monitoring data generation system, a monitoring data generation method, and an electrode.

[0002] This application claims the benefit of priority based on Korean Patent Application No. 10-2024-0162961 dated November 15, 2024, and all contents disclosed in the document of said Korean patent application are incorporated herein as part of this specification.

[0003] Batteries are manufactured through electrode, assembly, and activation processes. Among these, the electrode process is the most critical process for determining the yield and performance of the battery cell. The electrode process may include a coating process, a roll press process, and a slitting process. In the coating process, active materials and insulating materials may be applied to the surface of the current collector (electrode sheet). In the roll press process, the electrode sheet may be pressed by pressure rolls. The roll press process can determine the density, performance, and surface quality of the electrode. In the slitting process, the electrode sheet may be cut into multiple electrode sheets according to the design of the battery cell.

[0004] At least one detailed processing (process) may be performed on an electrode sheet moving in the electrode process. In order to inspect and measure the results of the electrode processing, a predetermined inspection device or measuring device may be provided. The inspection data or measuring data acquired from the inspection device or measuring device does not have a large capacity. Therefore, for example, the processor of the inspection device or measuring device can directly link the data with the coordinates where the data was acquired and transmit it to a higher-level system.

[0005] Meanwhile, a plurality of equipment units may be provided adjacent to the moving electrode sheet to perform detailed processing. Each equipment unit may be equipped with at least one sensor.

[0006] However, the amount of equipment data acquired from sensors of multiple equipment units was too large, making it difficult to directly link the sensors with coordinate data.

[0007] In addition, since the number of equipment units is large and the number of sensors included in each unit is even greater, installing a processor to link coordinates and equipment data for each sensor can significantly increase production costs.

[0008] For this reason, the equipment data was not linked to coordinates but was linked only to the time data at which each piece of equipment data was acquired.

[0009] As such, since the equipment data acquired from each equipment unit was not linked to coordinate data, it was very difficult to analyze the impact of the equipment data on each process.

[0010] [Patent Literature]

[0011] Korean Published Patent No. 2024-0067183 (May 16, 2024)

[0012] The present invention is to provide a system and method for generating monitoring data by matching equipment data and coordinate data based on time data and the unit ID of an equipment unit.

[0013] According to exemplary embodiments of the present invention for solving the above-mentioned problem, a monitoring data generation system may be provided.

[0014] The above monitoring data generation system is,

[0015] A plurality of equipment units installed along the electrode sheet, comprising at least one sensor for sensing equipment data;

[0016] A controller that collects coordinate data when the sensor senses the equipment data, as coordinate data indicating the position of the electrode sheet;

[0017] A unit ID assignment server that collects the coordinate data and equipment data sensed by the sensor at predetermined time intervals, assigns the unit ID of the equipment unit to which each sensor belongs to the equipment data and the time data at which the equipment data was collected, and assigns the unit ID of the equipment unit to which each sensor belongs to the coordinate data and the time data at which the coordinate data was collected; and

[0018] Based on the collected time data and the unit ID, it may include a monitoring data generation server that generates monitoring data by matching the facility data and the coordinate data.

[0019] The above coordinate data can be collected based on the unwinding amount signal or winding amount signal of the electrode sheet.

[0020] The coordinate data when the above sensor senses the above equipment data is,

[0021] It is obtained by adding or subtracting a first offset length to the amount of unwinding or winding of the electrode sheet at the time of sensing, and

[0022] The first offset length may be the length of the electrode sheet interposed between the unwinder or winder of the electrode sheet and the portion of the electrode sheet where the sensor is located.

[0023] The above unit ID assignment server can assign the unit ID to the equipment data and the collected time data based on reference information including the unit ID of each equipment unit and the correspondence relationship of the sensor belonging to the equipment unit.

[0024] The monitoring data generation server above can generate monitoring data based on the coordinate data by matching at least one of at least one unit ID corresponding to the same coordinate data, at least one sensor equipment data belonging to each unit ID, and at least one collected time data.

[0025] The above monitoring data generation system can generate monitoring data in an electrode manufacturing process in which processing of the upper and lower surfaces of an electrode sheet is performed sequentially on a continuous process line.

[0026] The monitoring data generation server matches the first equipment data sensed by at least one first sensor at an upper surface position of an electrode sheet corresponding to the same coordinate data of the electrode sheet, and the first unit ID of the first equipment unit to which the first sensor belongs, with the coordinate data, and also

[0027] At the lower surface position of the electrode sheet corresponding to the same coordinate data, the second equipment data sensed by at least one second sensor and the second unit ID of the second equipment unit to which the second sensor belongs can be matched with the coordinate data.

[0028] As another aspect of the present invention, a method for generating monitoring data may be provided.

[0029] A method for generating monitoring data according to an exemplary embodiment is,

[0030] A step of collecting equipment data sensed by at least one sensor included in each of a plurality of equipment units installed along an electrode sheet;

[0031] A step of collecting coordinate data when the sensor senses the equipment data, as coordinate data indicating the position of the electrode sheet;

[0032] A step of assigning the unit ID of the equipment unit to which each sensor belongs to the equipment data and the time data from which the equipment data was collected, and assigning the unit ID of the equipment unit to which each sensor belongs to the coordinate data and the time data from which the coordinate data was collected; and

[0033] Based on the collected time data and the unit ID, the method may include a step of generating monitoring data by matching the facility data and the coordinate data.

[0034] In the above method, the coordinate data can be collected based on the unwinding amount signal or winding amount signal of the electrode sheet.

[0035] In the above method, the coordinate data when the sensor senses the equipment data is,

[0036] It is obtained by adding or subtracting a first offset length to the amount of unwinding or winding of the electrode sheet at the time of sensing, and

[0037] The first offset length may be the length of the electrode sheet interposed between the unwinder or winder of the electrode sheet and the portion of the electrode sheet where the sensor is located.

[0038] In the above method, based on the coordinate data, monitoring data can be generated by matching at least one of at least one unit ID corresponding to the same coordinate data, at least one sensor equipment data belonging to each unit ID, and at least one collected time data.

[0039] In the above method, monitoring data can be generated in an electrode manufacturing process in which the processing of the upper and lower surfaces of the electrode sheet is performed sequentially on a continuous process line.

[0040] In the above method, first equipment data sensed by at least one first sensor at an upper surface position of an electrode sheet corresponding to the same coordinate data of the electrode sheet and the first unit ID of the first equipment unit to which the first sensor belongs are matched with said coordinate data, and also

[0041] At the lower surface position of the electrode sheet corresponding to the same coordinate data, the second equipment data sensed by at least one second sensor and the second unit ID of the second equipment unit to which the second sensor belongs can be matched with the coordinate data.

[0042] As another aspect of the present invention, an electrode manufactured by cutting an electrode sheet that moves during the process according to a predetermined standard may be provided.

[0043] The above electrode may have an electrode ID.

[0044] The above electrode ID is,

[0045] Coordinate data indicating the position of the electrode sheet during the process, and

[0046] Equipment data sensed by at least one sensor at the electrode sheet location of the above coordinate data, and

[0047] The above sensor can be matched with the unit ID of the facility unit to which it belongs.

[0048] The above electrode may be a double-sided coated electrode in which an electrode slurry is coated on the upper and lower surfaces.

[0049] The electrode ID is matched with first equipment data sensed by at least one first sensor at an upper surface position of an electrode sheet corresponding to the coordinate data, and with the first unit ID of the first equipment unit to which the first sensor belongs.

[0050] In addition, at least one second sensor sensed second equipment data at the lower surface position of the electrode sheet corresponding to the coordinate data and the second unit ID of the second equipment unit to which the second sensor belongs can be matched.

[0051] According to the present invention, equipment data with a large data volume can be sorted by data collection time data and equipment unit. In addition, based on the collection time data and the unit ID of the equipment unit, the equipment data of each equipment sensor and coordinate data can be matched. That is, since coordinate data can be matched by equipment, the influence of equipment factors can be analyzed by process.

[0052] Accordingly, the reliability of quality data tracking during electrode manufacturing can be improved.

[0053] The effects obtainable from the exemplary embodiments of the present invention are not limited to those mentioned above, and other unmentioned effects can be clearly derived and understood by those skilled in the art to which the exemplary embodiments of the present disclosure belong from the following description. That is, unintended effects resulting from the implementation of the exemplary embodiments of the present disclosure can also be derived by those skilled in the art from the exemplary embodiments of the present disclosure.

[0054] FIG. 1 is a schematic diagram of a monitoring data generation system according to one embodiment.

[0055] Figure 2 is an example of reference information indicating the unit ID of an equipment unit and the sensors belonging to that equipment unit.

[0056] FIGS. 3 to 5 show that the unit ID of each equipment unit is assigned to equipment data and the time data for collecting equipment data, and to coordinate data and the time data for collecting coordinate data.

[0057] Figures 6 to 8 show examples of matching each facility data and coordinate data based on the collected time data and unit ID.

[0058] Figure 9 shows the unit ID, equipment data, and collection time data corresponding to the same coordinate data based on the coordinate data.

[0059] Figure 10 schematically illustrates the unit ID, sensor, and equipment data acquired by the sensor of the equipment unit installed on the upper and lower surfaces of the electrode sheet.

[0060] FIG. 11 is a schematic diagram illustrating the process of manufacturing electrodes from electrode sheets, showing that an electrode ID is assigned to each electrode.

[0061] FIG. 12 is a flowchart for explaining a method for generating monitoring data according to one embodiment.

[0062] FIG. 13 illustrates a computing system that executes a method of operation of a server according to one embodiment disclosed in this document.

[0063] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings. Instead, based on the principle that the inventor can appropriately define the concepts of terms to best describe his invention, they should be interpreted in a meaning and concept consistent with the technical spirit of the present invention.

[0064] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0065] In addition, in describing the present invention, if it is determined that a detailed description of related known components or functions may obscure the essence of the invention, such detailed description is omitted.

[0066] Since embodiments of the present invention are provided to more fully explain the invention to those skilled in the art, the shapes and sizes of the components in the drawings may be exaggerated, omitted, or schematically depicted for clearer explanation. Accordingly, the size or proportion of each component does not entirely reflect the actual size or proportion.

[0067]

[0068] FIG. 1 is a schematic diagram of a monitoring data generation system according to one embodiment, and FIG. 2 is an example of reference information indicating the unit ID of an equipment unit and sensors belonging to the equipment unit.

[0069] The monitoring data generation system (10) may include an equipment unit (110), a controller (120), a unit ID assignment server (130), and a monitoring data generation server (140).

[0070] The equipment unit (110) can be defined as a device installed along the electrode sheet while the electrode sheet (ES) is moving and performing a predetermined action on the electrode sheet. Accordingly, a device that performs only inspection or measurement without applying action to the electrode sheet (e.g., an inspection device or a measuring device) may be excluded from the equipment unit of this document.

[0071] In this document, an "electrode sheet" can be defined as a sheet-shaped material that moves under the "action" of an equipment unit. In a narrow sense, an electrode sheet may refer to a sheet after an electrode slurry has been coated onto the sheet-shaped material. In a broad sense, an electrode sheet may also include a sheet that moves under the action of an equipment unit before the electrode slurry is coated onto the sheet-shaped material. In this document, both the narrow and broad senses of an electrode sheet are considered electrode sheets. For example, a sheet before the electrode slurry is coated in a coater during a coating process may also be considered an electrode sheet under the action of an equipment unit in this document. Electrode sheets after coating, and electrode sheets in other processes after the coating process (e.g., roll press process, slitting process, notching process, etc.), are also included in the electrode sheets of this document. That is, the monitoring data generation system of this document can be applied to all processes (e.g., coating process, roll press process, slitting process, notching process, etc.) in which a sheet-shaped material moves under the action of an equipment unit.

[0072] In this document, the term "action" may include a specific treatment performed on an electrode sheet. The treatment may include physical treatment, chemical treatment, or other treatments. For example, the treatment of unwinding the electrode sheet from an electrode roll or the treatment of winding the electrode sheet onto an electrode roll may be included in the action. Additionally, physical or chemical treatments such as coating a slurry on at least one surface of the electrode sheet, drying at least one surface of the electrode sheet, inverting the electrode sheet from the upper surface to the lower surface, slitting the electrode sheet, a roll press treatment of applying pressure and heating to the electrode sheet, and removing defective parts of the electrode sheet may be included in the action.

[0073] In this document, 'equipment data' may be defined as data acquired by sensors included in the equipment unit, excluding coordinate data.

[0074] Accordingly, coordinate data acquired by a sensor (rotary encoder) of an equipment unit, such as a winder or unwinder described below, is considered to be data distinct from equipment data. However, if a sensor other than a rotary encoder (e.g., a temperature sensor) is installed in the winder or unwinder, the temperature data acquired by said temperature sensor may be included in the equipment data.

[0075] In addition, data (inspection data, measurement data) acquired by a sensor included in a device other than the equipment unit (110), such as an inspector or measuring instrument, is considered as other data distinct from the equipment data. Furthermore, the equipment data included in the equipment unit may include data indirectly related to the electrode sheet in addition to data directly related to the electrode sheet.

[0076] For example, assuming a case where a coater, which is an equipment unit of a coating process, coats an electrode slurry onto a sheet, the electrode slurry temperature represents the characteristics of the electrode sheet and can therefore be viewed as equipment data directly related to the electrode sheet. However, the RPM of the pump connected to the coater or the Die Gap, which is the distance between the coater and the sheet, are not directly related to the characteristics of the electrode sheet. Nevertheless, these parameters may be indirectly related to the state of the electrode sheet. Thus, even data that appears to have little relevance to the electrode sheet at first glance can be considered as equipment data if it is acquired by a sensor equipped by the equipment unit.

[0077] According to this document, numerous equipment data are interconnected to track or predict the quality of electrode sheets, electrodes manufactured from said electrode sheets, and furthermore, battery semi-finished products or battery products containing said electrodes. For example, the influence of temperature measured in a dryer, which is an equipment unit of the coating process, on sheet thickness data acquired in the roll press process can be analyzed.

[0078] Figure 1 illustrates a system for generating monitoring data in a coating process. However, this is merely an example, and monitoring data identical or similar to that in Figure 1 can be generated in other electrode manufacturing processes, such as a roll press process and a slitting process.

[0079] In the coating process of FIG. 1, the equipment unit (110) may include a winder (111) for winding an electrode sheet (ES), a coater (112) for coating a slurry, a dryer (113) for drying the electrode sheet, a half slitter (114) for slitting the electrode sheet, and a winder (115) for winding the electrode sheet.

[0080] In FIG. 1, for the sake of simplicity of illustration, the electrode sheet (ES) is depicted as moving in a straight line between the unwinder (111) and the winder (115). However, the transport path of the electrode sheet (ES) is not limited to a straight line and includes other shapes of paths such as curves. In addition, FIG. 1 illustrates that a coater (113) is positioned on the upper surface of the electrode sheet (ES) to coat an electrode slurry on one side of the electrode sheet (ES). When manufacturing a single-sided coated electrode sheet in which the electrode slurry is coated only on one side of the electrode sheet, the electrode sheet with the coating completed as in FIG. 1 can be moved to the winder (115) and wound on the winder.

[0081] However, when an electrode slurry is coated on both sides of an electrode sheet to manufacture a so-called double-sided coated electrode sheet, the path of the electrode sheet (ES) may differ.

[0082] For example, the processing of the upper and lower surfaces of the electrode sheet can be performed sequentially in a single continuous process line. In this case, the movement path of the electrode sheet can be changed so that the upper surface of the electrode sheet (ES) passes through a top coater to coat the electrode slurry on the upper surface, and then the electrode sheet (ES) is inverted so that the lower surface of the electrode sheet (ES) passes through a bottom coater again to coat the electrode slurry on the lower surface. The electrode sheet (ES) coated with electrode slurry on both the upper and lower surfaces can be moved to a winder and wound on the winder.

[0083] In FIG. 1, if double-sided coating is performed, additional equipment units such as an electrode sheet inversion device, a bottom coater, and a bottom dryer may be installed behind the dryer (113) that dries the electrode sheet.

[0084] Therefore, the equipment units disclosed in FIG. 1 are merely examples, and fewer or more equipment units may be installed depending on the path or processing of the electrode sheet.

[0085] Each equipment unit may include at least one sensor for acquiring equipment data. That is, each equipment unit may include at least one sensor.

[0086] The fact that an equipment unit includes a sensor does not mean that the equipment unit and the sensor are necessarily installed adjacent to each other in terms of location. If a sensor is installed at a location where the effect of a processing can be sensed after processing by a specific equipment unit, the sensor can be considered to be included in that equipment unit.

[0087] In addition, multiple sensors included in an equipment unit do not necessarily have to be installed at the same location. Even within the same equipment unit, the locations of the sensors may be the same or different. However, for the sake of convenience of explanation in this embodiment, the locations of sensors belonging to the same equipment unit will be described as being identical.

[0088] In FIG. 1, the unwinder (111) includes a first rotary encoder (SE1) as a sensor.

[0089] In FIG. 1, the winder (115) includes a second rotary encoder (SE2) as a sensor.

[0090] The first and second rotary encoders (SE1, SE2) are intended to obtain coordinate data by measuring the unwinding and winding amounts of the electrode sheet. As described above, the coordinate data is excluded from the equipment data. If another sensor other than the coordinate data is installed in the unwinder (111) or the winder (115), the data sensed by that sensor may become the equipment data of the unwinder (111) or the winder (115).

[0091] The first electrode roll (ER1) can be loaded into a winder (311). The winder (311) can be configured to wind one electrode sheet (ES) from the first electrode roll (ER1).

[0092] The winder (115) can wind the electrode sheet (ES) to form a second electrode roll (ER2). The electrode sheet (ES) is wound into the second electrode roll (ER2) and can be cut and separated after reaching a predetermined winding length. Accordingly, the electrode sheet (ES) can move between the unwinder (111) and the winder (115).

[0093] The first rotary encoder (SE1) may be configured to sense the amount of electrode sheet (ES) unwound from the first electrode roll (ER1) by the winder (111). Accordingly, the first rotary encoder (SE1) may generate an unwinding amount signal (UWAS) indicating the unwinding amount of the electrode sheet (ES). The first rotary encoder (SE1) may be configured to transmit the unwinding amount signal (UWAS) to the controller (120). The controller (120) may be configured to collect unwinding amount data based on the unwinding amount signal (UWAS) of the electrode sheet (ES).

[0094] The second rotary encoder (SE2) may be configured to sense the amount of electrode sheet (ES) wound onto the second electrode roll (ER2) by the winder (115). Accordingly, the second rotary encoder (SE2) may generate a winding amount signal (WAS) indicating the amount of electrode sheet (ES) wound. The second rotary encoder (SE2) may be configured to transmit the winding amount signal (WAS) to the controller (120). The controller (120) may be configured to collect winding amount data based on the winding amount signal (WAS) of the electrode sheet (ES).

[0095] In FIG. 1, a coater (112) discharges an electrode slurry to coat the electrode slurry onto an electrode sheet (ES). The coating process is a process of applying a coating material, such as an electrode slurry, onto an electrode sheet (ES). The electrode slurry may include an electrode active material, a conductive agent, a binder, and a solvent. An electrode slurry may be provided by dissolving the electrode active material, the conductive agent, and the binder, etc., in a solvent.

[0096] A coater (112), which is one of the equipment units, may include, for example, three sensors (Sa, Sb, Sc) at the same location (of course, the three sensors may be at different locations). The three sensors (Sa, Sb, Sc) may each acquire equipment data (EDa, EDb, EDc) related to the coater (112). Sa may be an RPM sensing sensor and, for example, can sense the RPM of a pump connected to the coater. EDa may be an RPM value as equipment data sensed by Sa. Sb may be a temperature sensor and, for example, can sense the temperature of the electrode slurry discharged from the coater or the temperature of the electrode slurry coated on the electrode sheet. EDb may be a temperature value as equipment data sensed by Sb. Sc may be a distance measuring sensor and, for example, can measure the Die Gap, which is the distance between the coater and the sheet. EDc can be a temperature value, which is equipment data sensed by Sc.

[0097] A dryer (113), which is one of the equipment units, can be installed on the electrode sheet after the coater (112) to heat and dry the coated electrode sheet. The dryer (113) may include, for example, two sensors (Sd, Se) at the same location (of course, the two sensors may be at different locations). The two sensors (Sd, Se) can each acquire equipment data related to the dryer (113). For example, Sd or Se may be sensors that measure the temperature, humidity, hot air speed, etc. inside the dryer (113), but are not limited thereto. EDd is equipment data sensed by sensor Sd, and Ede is equipment data sensed by sensor Se.

[0098] A half slitter (114), which is one of the equipment units, can slit multiple electrode sheets that have been dried after passing through a dryer. As described above, in the case of a double-sided coated electrode sheet in which both the upper and lower surfaces of the sheet are coated with a slurry, additional equipment units (e.g., electrode sheet inversion equipment, bottom coater, bottom dryer, etc.) may be installed between the dryer (113) and the half slitter (114).

[0099] The above half slitter (114) may include, for example, one sensor (Sf). Sf can also acquire equipment data related to the half slitter. EDf represents the equipment data sensed by the sensor Sf.

[0100] The number of sensors and the data measured by each sensor described above are examples. The number of sensors and the data may vary. Other data, such as Critical To Parameters (CTP) that may have a significant impact on the electrode manufacturing process, or other parameters that meet the definition of equipment data described above, may also be sensed as equipment data.

[0101] For the convenience of the city, only one winder (115) is shown in FIG. 1. However, when a half slitter (114) is applied to slit multiple electrode sheets (ES), multiple winders (115) may be provided for each electrode sheet. In this case, each winder (115) may also be an equipment unit. Additionally, the amount of electrode sheets (ES) included in each second electrode roll (ER2) wound by each winder (115) can be sensed by the second rotary encoders (SE2) provided in each winder (115). Each second rotary encoder (SE2) can generate a winding amount signal (WAS) indicating the winding amount of each slit electrode sheet (ES). However, since the principle of measuring the winding amount and collecting coordinate data of each electrode sheet described later is the same whether there is one or multiple winders (115), only one winder (115) is shown in this document for convenience of illustration.

[0102] The controller (120) may be configured to control the operation of a plurality of equipment units (111, 112, 113, 114, 115). The controller (120) may be referred to as an integrated controller in that it can control all of the multiple equipment units in the electrode manufacturing process. The controller (120) may be configured to generate signals for the operation and cessation of the plurality of equipment units (111, 112, 113, 114, 115). The signals for the operation and cessation of the plurality of equipment units (111, 112, 113, 114, 115) may be generated based on a body including product ID and details of the manufacturing recipe.

[0103] Equipment data (ED) acquired from the sensors of each equipment unit can be transmitted to the controller (120). For example, a data storage such as a memory provided in the controller (120) may have a location, i.e., an address, where the equipment data acquired by each sensor is stored. The equipment data acquired by each sensor can be stored at the address continuously or at predetermined time intervals.

[0104] The equipment data (ED) transmitted to the controller (320) can be transmitted to the unit ID assignment server (130) at predetermined time intervals.

[0105]

[0106] As described above, the controller (120) can collect unwinding amount data based on the unwinding amount signal (UWAS) of the electrode sheet (ES) or collect winding amount data based on the winding amount signal (WAS).

[0107] The controller (120) may be configured to collect coordinate data (CD) of the electrode sheet (ES) based on either the winding amount signal (WAS) or the unwinding amount signal (UWAS) of the electrode sheet (ES). For example, the controller (120) may determine the travel distance of the electrode sheet (ES) in the current process based on the winding amount signal of the electrode sheet (ES). Accordingly, a coordinate value representing the relative position within the electrode sheet (ES) of the portion of the electrode sheet (ES) being wound by the winder (115) at each point in time when the coating process is performed may be determined.

[0108] In addition, the controller can collect coordinate data of the electrode sheet when the sensor senses the equipment data.

[0109] The coordinate data when the sensor senses the equipment data can be obtained by adding or subtracting a first offset length from the unwinding or winding amount of the electrode sheet at the time of sensing.

[0110] For example, it is assumed that at the time when the sensors of the coater (112), the sensors of the dryer (113), and the sensor of the half-slitter (114) sense equipment data (e.g., 9:40:51), the amount of electrode sheet wound by the second rotary encoder (SE2) of the winder (115) sensed is 1204 m. In this case, since the position of each equipment unit or each sensor is different, even if the amount of electrode sheet wound by the winder is sensed at the same time, the position of the electrode sheet at each sensor is different from the amount of wound. Specifically, the position of the electrode sheet at each sensor is different from the amount of wound by the first offset length (OD1, OD2, OD3, OD4).

[0111] The first offset length (OD1, OD2, OD3, OD4) can be defined as the length of the electrode sheet interposed between the unwinder or winder of the electrode sheet and the portion of the electrode sheet where the sensor is located.

[0112] When based on the winding amount of the winder, the position of the electrode sheet at the time sensed by each sensor is the position obtained by adding the first offset length to the winding amount. In this case, the first offset length can be defined as the length of the electrode sheet interposed between the winder of the electrode sheet and the portion of the electrode sheet where the sensor is located.

[0113] For example, if the first offset distance (OD2) for the sensors of the coater (112) is 50m, the position of the electrode sheet where the sensors of the coater (112) acquired equipment data at 9:40:51 is 1254m.

[0114] In addition, if the first offset distance (OD3) for the sensors of the dryer (113) is 30m, the position of the electrode sheet where the sensors of the dryer (113) acquired equipment data at the same time is 1234m.

[0115] In addition, if the first offset distance (OD4) to the sensor of the half-slitter (114) is 10m, the position of the electrode sheet where the sensors of the coater (112) acquired equipment data at 9:40:51 is 1214m.

[0116] The first offset distance is determined according to the location where each equipment unit is installed, so it is pre-set for each equipment unit.

[0117] Accordingly, the coordinate data (CD) of the corresponding electrode sheet when the sensor of each equipment unit senses each equipment data can be obtained by adding the first offset distance to the winding amount of the winder.

[0118] Likewise, the first offset distance (OD1) for the sensors of the unwinder (111) is known, and the coordinate data of the electrode sheet in the unwinder can be obtained by adding OD1 to the winding amount.

[0119] Meanwhile, coordinate data (CD) of the electrode sheet can also be acquired based on the unwinding amount of the unwinder when the sensor senses the equipment data (ED). In this case, the first offset length can be defined as the length of the electrode sheet interposed between the unwinder of the electrode sheet and the portion of the electrode sheet where the sensor is located. In this case, the coordinate data can be acquired by adding or subtracting the first offset length from the unwinding amount of the electrode sheet at the time the sensor senses.

[0120] In this document, we will focus on an example of acquiring the above coordinate data (CD) based on a winder.

[0121] When the sensor of each equipment unit senses the equipment data (ED), the coordinate data (CD) of the corresponding electrode sheet can be calculated based on the first offset distance as described above and collected by the controller (120).

[0122] In a data storage such as a memory provided in the controller (120), a location, i.e., an address, may be provided where the coordinate data of the corresponding electrode sheet at the time when each sensor senses the equipment data is stored. At the address, the coordinate data of the corresponding electrode sheet may be stored continuously or at predetermined time intervals.

[0123] The controller (120) may be in operative communication with the first and second rotary encoders (SE1, SE2), a plurality of sensors (Sa, Sb, Sc, Sd, Se, Sf), or each facility unit (112, 113, 114) via a wired or wireless data network. The data network may be unidirectional or bidirectional. The data network may be implemented by a physical channel, WiFi, Bluetooth and / or a public network and / or a specialized network using other frequency bands.

[0124] The coordinate data (CD) collected by the controller (320) can be transmitted to the unit ID assignment server (130) at predetermined time intervals.

[0125] In this embodiment, each sensor of the equipment unit acquires only equipment data (ED) and does not match the coordinate data (CD) of the electrode sheet corresponding to the equipment data at the sensor. Therefore, separate processors for coordinate data matching are not required. Furthermore, since the equipment data and coordinate data are not matched at the lower level of the system, there is no load required for data processing, so the sensed equipment data (ED) or coordinate data (CD) can be rapidly transmitted to the controller, respectively. Similarly, the equipment data or coordinate data collected by the controller can be rapidly transmitted to the unit ID assignment server, respectively.

[0126] The unit ID assignment server (130) is a server for assigning the unit ID (UI) of an equipment unit to equipment data (ED) and coordinate data (CD). The unit ID assignment server (130) may be an eIoT server that can be accessed by an IoT device or an eIoT device.

[0127] The unit ID allocation server (130) can receive equipment data (ED) and coordinate data (CD) from the controller (120) at predetermined time intervals. For example, the unit ID allocation server (130) can receive equipment data (ED) and coordinate data (CD) from the controller (120) at intervals of 0.1 seconds, 0.2 seconds, 0.3 seconds, 0.5 seconds, 1 second, and 2 seconds. The time intervals are not limited to those exemplified above. The shorter the time interval for data collection, the higher the reliability of the data, but the volume of data to be processed may increase. If the time interval for data collection becomes longer, the volume of data to be processed decreases, but the reliability of the data may decrease. The above time intervals can be appropriately determined by considering the target data reliability, the volume of data to be processed, the specifications of the electrode or battery product, and the load applied to the battery manufacturing system. In this embodiment, equipment data (ED) and coordinate data (CD) are received by the unit ID allocation server (130) every second. When data is collected by the unit ID allocation server (130) every second, the time value at which the data was acquired is also naturally acquired. That is, the equipment data (ED) and coordinate data (CD) can be associated with the time data (TD) at which each data was acquired.

[0128] Accordingly, the unit ID allocation server (130) can collect equipment data (ED) and time data (TD: hereinafter referred to as collection time data).

[0129] In addition, the unit ID assignment server (130) may also collect coordinate data (CD) of the electrode sheet when the sensor senses equipment data and time data (TD) at which the coordinate data was acquired.

[0130] In a data storage such as memory provided in the unit allocation server (130), there may be a location, i.e., an address, where equipment data acquired by each sensor is stored. Equipment data acquired by each sensor may be stored at the address at predetermined time intervals.

[0131] In a data storage such as memory provided in the unit allocation server (130), a location, i.e., an address, may be provided for storing coordinate data of an electrode sheet corresponding to the time when each sensor senses the equipment data. At the address, the coordinate data of the corresponding electrode sheet may be stored at predetermined time intervals.

[0132] FIG. 2 illustrates an example of reference information stored in a unit ID assignment server (130). The reference information may include an identifier of an equipment unit, i.e., a unit ID (UI), and a correspondence relationship with a sensor belonging to the equipment unit of that unit ID. Referring to FIG. 2, it can be seen that three sensors, Sa, Sb, and Sc, correspond to an equipment unit with UI #1 (e.g., a coater). Referring to FIG. 2, it can be seen that two sensors, Sd and Se, correspond to an equipment unit with UI #2 (e.g., a dryer). Referring to FIG. 2, it can be seen that three sensors, Sf, correspond to an equipment unit with UI #3 (e.g., a half-slitter). FIG. 2 is merely an example, and the reference information may include the unit IDs (IDs) of other equipment units and the correspondence relationships with sensors belonging to those equipment units. Therefore, by referring to the reference information, the type of sensor and the number of sensors corresponding to each unit ID can be identified.

[0133] The reference information may also include information regarding the unit of data (parameters) sensed and acquired by each sensor. To store the reference information, the unit ID assignment server (130) may include a database (DB).

[0134] The unit ID assignment server (130) assigns the unit ID (UI) to the equipment data (ED) and the collected time data (TD) based on the reference information.

[0135] FIGS. 3 to 5 show that the unit ID of each equipment unit is assigned to equipment data and the time data for collecting equipment data, and to coordinate data and the time data for collecting coordinate data.

[0136] Referring to FIG. 3(a), based on the reference information, unit ID #1 is assigned to equipment data (Eda, EDb, EDc) acquired by three sensors and time data (TD) at which the equipment data was collected. The data collection interval is 1 second. The equipment data (Eda) collected at each time is a1, a2, a3, and a4. The equipment data (Edb) collected at each time is b1, b2, b3, and b4. The equipment data (Edc) collected at each time is c1, c2, c3, and c4. Since #1 is assigned to these equipment data, it can be seen that the equipment data was acquired from an equipment unit (e.g., a coater (113)) having unit ID #1.

[0137] Referring to FIG. 3(b), Unit ID #1 is assigned to the coordinate data of the electrode sheet when the three sensors sense the equipment data and to the time data (TD) at which the coordinate data was collected. The data collection interval is 1 second. As described above, the coordinate data can be obtained by adding a first offset distance to the unwinding amount of the electrode sheet. That is, by adding the first offset distance specified for each sensor of each equipment unit, the coordinate data of the electrode sheet when each sensor of each equipment unit senses each equipment data can be obtained. For example, if the unwinding amount is 1204m at the time of 9:40:51 and the first offset distance of the three sensors is 50m, the coordinate data of the electrode sheet corresponding to each equipment data acquired at the time becomes 1254m.

[0138] In the same way, coordinate data for each time point can be obtained. As shown in the ratio in Fig. 3(b), it can be seen that the electrode sheet moved 1 m per second during the process.

[0139] In this way, coordinate data at the time when each sensor senses equipment data can be obtained by the first offset distance specified for each sensor. Accordingly, coordinate data of the electrode sheet corresponding to each equipment unit can be obtained, and the unit ID of each equipment unit can also be corresponded to the corresponding coordinate data.

[0140] In FIG. 4(a), unit ID #2 is assigned to equipment data (EDd,EDe) and collected time data (TD) acquired by a sensor (Sd,Se) belonging to an equipment unit (e.g., dryer (113)).

[0141] In FIG. 4(b), unit ID #2 is assigned to the coordinate data of the electrode sheet corresponding to the time when the sensor (Sd,Se) senses the equipment data (EDd,EDe) and the time data (TD) at which the coordinate data was collected.

[0142] Since the first offset distance specified for the sensor (Sd,Se) is 30m, when the winding amount at 9:40:51 is 1204m, the coordinate data of the electrode sheet corresponding to the equipment data acquired at the above time is 1234m.

[0143] In FIG. 5(a), unit ID #3 is assigned to equipment data (Ef) and collected time data (TD) acquired by a sensor (Sf) belonging to an equipment unit (e.g., half-slitter (114)).

[0144] In FIG. 5(b), unit ID #3 is assigned to the coordinate data of the electrode sheet corresponding to the time when the sensor (Sf) senses the equipment data (Ef) and the time data (TD) at which the coordinate data was collected.

[0145] Since the first offset distance specified for the sensor (Sf) is 10m, when the winding amount at 9:40:51 is 1204m, the coordinate data of the electrode sheet corresponding to the equipment data acquired at the above time is 1214m.

[0146] The unit ID allocation server (130) may have a command, i.e., a program, regarding the unit ID allocation process stored in memory. The unit ID allocation server (130) may have at least one processor that executes the command.

[0147] The equipment data collected by the unit ID allocation server (130) can increase exponentially depending on the number of equipment units and the number of sensors equipped by each equipment unit. Additionally, the unit ID allocation server (130) must continuously collect data collected by the controller at predetermined time intervals in conjunction with the controller (120). While a large volume of data must be collected and processed in this manner, the data processing capacity of the unit ID allocation server (130) is limited. Therefore, it is efficient for the unit ID allocation server (130) to perform only the task of assigning unit IDs to equipment data and coordinate data—that is, attaching an information tag called a unit ID—and for the monitoring data server using the information tag to be performed by a separate upper server.

[0148]

[0149] Figures 6 to 8 show examples of matching each facility data and coordinate data based on the collected time data and unit ID.

[0150] The monitoring data server (140) can generate monitoring data by matching the equipment data (ED) and the coordinate data (CD) based on the collected time data (TD) and the unit ID (UI).

[0151] Figure 6 illustrates that, based on the unit ID #1 and time data (TD) assigned in Figures 3(a) and 3(b), the equipment data (EDa, EDb, EDc) acquired by three sensors belonging to the equipment unit of unit ID #1 are matched with the coordinate data (CD) of the electrode sheet at the time when the equipment data was sensed.

[0152] Figure 7 illustrates that, based on the unit ID #2 and time data (TD) assigned in Figures 4(a) and 4(b), the equipment data (EDd, EDE) acquired by two sensors belonging to the equipment unit of unit ID #2 is matched with the coordinate data (CD) of the electrode sheet at the time when the equipment data was sensed.

[0153] FIG. 8 illustrates that, based on the unit ID #3 and time data (TD) assigned in FIG. 5(a) and FIG. 5(b), the equipment data (EDf) acquired by one sensor belonging to the equipment unit of unit ID #3 is matched with the coordinate data (CD) of the electrode sheet at the time when the equipment data was sensed.

[0154] As illustrated in FIGS. 7 and 8, the equipment data and coordinate data can be continuously acquired over time. FIGS. 7 and 8 show that the sensors of the equipment units having unit IDs #2 and #3 acquire data until the coordinates of the electrode sheet reach 1253m.

[0155]

[0156] Figure 9 shows the unit ID, equipment data, and collection time data corresponding to the same coordinate data based on the coordinate data of the X, Y, and Z parts of Figures 6 to 8.

[0157] The monitoring data generation server (140) can generate monitoring data by matching at least one of at least one unit ID corresponding to the same coordinate data, at least one sensor equipment data belonging to each unit ID, and at least one collected time data based on the coordinate data.

[0158] Referring to FIG. 9, the unit ID of each equipment unit, the equipment data acquired by the sensors of each equipment unit, and the time data at which the equipment data was acquired correspond to the coordinates 1253m of the same electrode sheet.

[0159] If FIGS. 6 to 8 sort data based on time, FIG. 9 sorts data based on coordinates. In either case, since the data and unit IDs correspond, it is possible to clearly determine the relationship between the equipment data associated with each equipment unit and the position of the electrode sheet.

[0160] In Fig. 9, since the equipment data from each equipment unit at the same electrode sheet location (coordinates) is associated, it is very easy to determine how the process parameters of each equipment unit affect the manufacturing of the same electrode sheet portion.

[0161]

[0162] The above monitoring data may include a roll map.

[0163] A roll map is a visual tool for efficiently representing an electrode sheet or electrode proposed by the applicant. The roll map can represent the electrode sheet (ES) based on coordinate values ​​representing a position on the electrode sheet (ES). The roll map may represent the history of processes performed on the electrode sheet (ES) and include data associated with the coordinates. Accordingly, the roll map enables the feedback, feed forwarding, and traceability of the manufacturing process of a secondary battery described below.

[0164] The electrode manufacturing process for secondary batteries involves a series of roll-to-roll processes. For feed-forwarding, time-series data needs to be associated with the positions of real-world workpieces, parts, semi-finished products, and finished products. A roll map can associate time-series data with coordinate data containing coordinate values ​​representing the positions of real-world workpieces, parts, semi-finished products, and finished products. Based on the coordinate data, the roll map can provide a matching between the time-series data and the real-world workpieces, parts, semi-finished products, and finished products. Accordingly, the creation of a roll map and feed-forwarding based on the roll map can improve productivity and quality by quantifying and objectifying phases of the process that previously relied on the operator's discretion. Furthermore, the roll map of a preceding lot can be used to improve the process for a subsequent lot, and this operation can be referred to as process feedback. Process feedback using a roll map may include identifying process conditions and process parameters that caused problems and defects based on the data contained in the roll map.

[0165] Furthermore, the roll map is generated cumulatively for the workpieces, parts, semi-finished products, and finished products of the above processes, thereby enabling the tracking of the process history for shipped products (e.g., battery cells, battery modules, or battery packs). For example, a battery cell may include a cell ID formed on an electrode assembly or case. The cell ID may include lot number and coordinate information of the electrodes and separator included in the battery cell. In other words, the cell ID may be associated with the roll map of the electrodes and separator included in the battery cell. Accordingly, if an event such as a quality issue occurs in a battery cell that has already been shipped, the historical data of the manufacturing of the battery cell can be retrieved based on the cell ID.

[0166] In addition, equipment data such as that illustrated in FIGS. 1 to 9 can be associated with data included in the roll map (e.g., inspection data or measurement data). For example, equipment data such as electrode slurry temperature or pump RPM can be associated with loading amount measurement data measured by a loading amount measuring instrument. Such association can be performed for each electrode manufacturing process, such as a coating process, a roll press process, or a slitting process. Alternatively, the quality of the produced electrode or battery can be analyzed or predicted by associating equipment data and roll map data between multiple processes. Alternatively, the equipment data of this document may be included in the roll map data.

[0167] Accordingly, through the embodiments disclosed in this document, the influence of equipment data on the electrode (sheet) can be identified by comparing equipment data with each other using time and coordinates as parameters. Furthermore, by linking the equipment data with inspection and measurement data contained in the roll map, the influence of each data on the electrode (sheet) can be identified more comprehensively. As a result, quality traceability is further improved, and data reliability and consistency using monitoring data can be significantly enhanced.

[0168] The above monitoring data generation server (140) may be, for example, a data warehouse and may store coordinate-related data and unit ID-related data for a long period based on the product's warranty period, etc.

[0169]

[0170] Figure 10 schematically illustrates the unit ID, sensor, and equipment data acquired by the sensor of the equipment unit installed on the upper and lower surfaces of the electrode sheet.

[0171] FIG. 10 illustrates a double-sided coating process in which an electrode slurry is coated on both sides of an electrode sheet. In this process, the electrode sheet can be moved along a path in which the upper and lower surfaces of the electrode sheet are reversed relative to each other while moving between a winder (111) and a winder (115). That is, while following the path of the electrode sheet, the processing of the upper and lower surfaces of the electrode sheet can be performed sequentially in a single continuous process line.

[0172] In FIG. 10, equipment units such as a top coater and a top dryer may be installed on the upper side of the electrode. On the other hand, equipment units such as a bottom coater, a bottom dryer, and a half slitter may be installed on the lower side of the electrode.

[0173] The equipment unit on the upper surface of the electrode can be referred to as the first equipment unit, the sensor belonging to the first equipment unit as the first sensor (S1), and the equipment data measured by the first sensor as the first equipment data (ED1). In this case, the unit ID of the first equipment unit can be referred to as the first unit ID (UI1).

[0174] The equipment unit on the lower side of the electrode can be referred to as the second equipment unit, the sensor belonging to the second equipment unit as the second sensor (S2), and the equipment data measured by the second sensor as the second equipment data (ED2). In this case, the unit ID of the second equipment unit can be referred to as the second unit ID (UI2).

[0175] As shown in FIGS. 3 to 5, the task of assigning a unit ID to equipment data and coordinate data; as shown in FIGS. 6 to 8, the task of matching equipment data and coordinate data based on collected time data and unit ID; and as shown in FIG. 9, the task of matching unit IDs, equipment data, and time data corresponding to the same coordinate data can be performed in the same way in a process such as FIG. 10.

[0176] For example, a top coating layer (TC) is formed on the upper surface of an electrode sheet by a top coater, which is a first equipment unit, and when a first sensor (S1) included in the top coater acquires first equipment data (ED1), the coordinates of the electrode sheet at the time when the first equipment data (ED1) is acquired can be matched to UI1 and ED1.

[0177] In addition, a bottom coating layer (BC) is formed on the lower surface of the electrode sheet by a bottom coater, which is a second equipment unit, and when the second sensor (S2) included in the bottom coater acquires second equipment data (ED2), the coordinates of the electrode sheet at the time when the second equipment data (ED2) is acquired can be matched to UI2 and ED2.

[0178] After the upper surface coating, the electrode sheet is moved by a distance corresponding to that between the top coater and the bottom coater to be coated on the lower surface. That is, the acquisition time of ED1 and ED2 may be different.

[0179] However, as shown in Fig. 9, if the coordinate data of the electrode sheet at the time when ED1 and ED2 are sensed are the same, the data can be aligned based on the coordinate data.

[0180] The fact that the coordinate data is identical means that the electrode sheet portion where the top coating layer (TC) is formed and the electrode sheet portion where the bottom coating layer (BC) is formed correspond to each other vertically.

[0181] In this case, the monitoring data generation server (140) can match the first equipment data (ED1) sensed by at least one first sensor (S1) at an upper surface position of the electrode sheet corresponding to the same coordinate data of the electrode sheet, and the first unit ID (UI1) of the first equipment unit to which the first sensor (S1) belongs, with the coordinate data.

[0182] In addition, the monitoring data generation server (140) can match the second equipment data (ED2) sensed by at least one second sensor (S2) at the lower surface location of the electrode sheet corresponding to the same coordinate data and the second unit ID (UI2) of the second equipment unit to which the second sensor belongs with the coordinate data.

[0183] Accordingly, ED1, UI1, ED2, and UI2 are matched based on the same coordinate data. Therefore, when an electrode is manufactured by cutting the electrode sheet portion on which the coating layers (TC, BC) are formed, the quality of the electrode or the battery containing the electrode can be analyzed based on the matched data.

[0184]

[0185] FIG. 11 is a schematic diagram illustrating the process of manufacturing electrodes from electrode sheets, showing that an electrode ID is assigned to each electrode.

[0186] For example, an electrode can be manufactured by cutting an electrode sheet that moves during a lamination or winding process according to a predetermined standard. The manufactured electrode can be combined with an electrode of different polarity to form an electrode assembly.

[0187] The electrode may be assigned an electrode ID. The electrode ID may be physically assigned to the actual electrode or virtually assigned. For example, the electrode ID may be assigned to the tab portion (2) of the electrode. In FIG. 11, the electrode ID is represented by the special character @ and numbers (e.g., @1, @2, @3), but it is not limited thereto and may be represented as an electronic code such as a barcode or QR code, or other forms of identification information.

[0188] The above electrode ID may be associated with coordinate data indicating the location of the electrode or electrode sheet in an electrode manufacturing process such as FIG. 11 or in a processing process of the electrode sheet from which the electrode originates. Each electrode ID may be associated with coordinate data at each location. It is assumed that the electrode ID of @1 in FIG. 10 is associated with coordinate data CD1.

[0189] In this case, at least one sensor in a plurality of processes can sense equipment data for the position of the electrode sheet corresponding to the coordinate data (CD1).

[0190] Accordingly, the electrode ID (@1) and coordinate data (CD1) can be matched with equipment data (ED) sensed by at least one sensor at the electrode sheet location of the coordinate data and with the unit ID of the equipment unit to which the sensor belongs. Such matching can be performed through the matching process illustrated in FIGS. 3 to 9.

[0191] The electrode may be a double-sided coated electrode in which an electrode slurry is coated on the upper and lower surfaces. That is, the electrode may be a double-sided coated electrode manufactured by cutting the double-sided coated electrode sheet shown in FIG. 10.

[0192] In this case, the electrode ID (@1) and coordinate data (CD1) can be matched with the equipment data and unit ID for the upper and lower surfaces of the electrode sheet.

[0193] That is, the first equipment data (ED1) sensed by at least one first sensor at the upper surface position of the electrode sheet corresponding to the electrode ID (@1) and the coordinate data (CD1) is matched with the first unit ID (UI1) of the first equipment unit to which the first sensor belongs, and

[0194] In addition, at least one second sensor can sense second equipment data (ED2) at the lower surface position of the electrode sheet corresponding to the coordinate data (CD1) and the second unit ID (UI2) of the second equipment unit to which the second sensor belongs.

[0195] Therefore, by analyzing the above electrode ID and other data matched thereto, and by analyzing equipment data related to the electrode, quality information of the electrode can be efficiently analyzed or predicted.

[0196]

[0197] FIG. 12 is a flowchart for explaining a method for generating monitoring data according to one embodiment.

[0198] The above monitoring data generation method is,

[0199] A step (P10) of collecting equipment data sensed by at least one sensor included in each of the plurality of equipment units installed along the electrode sheet;

[0200] A step (P20) of collecting coordinate data when the sensor senses the equipment data, as coordinate data indicating the position of the electrode sheet;

[0201] A step (P30) of assigning the unit ID of the equipment unit to which each sensor belongs to the equipment data and the time data from which the equipment data was collected, and assigning the unit ID of the equipment unit to which each sensor belongs to the coordinate data and the time data from which the coordinate data was collected; and

[0202] Based on the collected time data and the unit ID, the method may include a step (P40) of generating monitoring data by matching the equipment data and the coordinate data.

[0203] In step P10, a plurality of equipment units may be installed along the electrode sheet. The equipment units may include at least one sensor. The sensors may sense equipment data. The sensed equipment data may be collected by a controller (120). The equipment data collected by the controller (120) may be collected by a unit ID assignment server (130) at predetermined time intervals.

[0204] In step P20, coordinate data of the electrode sheet can be collected when the sensor senses the equipment data. The coordinate data can be collected based on the unwinding amount signal or the winding amount signal of the electrode sheet. The unwinding amount signal of the electrode sheet can be acquired by a first rotary encoder (SE1) installed on the unwinder side. The winding amount signal of the electrode sheet can be acquired by a second rotary encoder (SE2) installed on the winder side. The unwinding amount signal and / or winding amount signal can be collected by the controller (120).

[0205] The coordinate data when the above sensor senses the above equipment data is,

[0206] It can be obtained by adding or subtracting a first offset length from the unwinding or winding amount of the electrode sheet at the time of sensing. The first offset length is the length of the electrode sheet interposed between the unwinder or winder of the electrode sheet and the portion of the electrode sheet where the sensor is located. Accordingly, by adding the first offset length determined for each sensor to the winding amount obtained, for example by the second rotary encoder (SE2), the coordinate data of the electrode sheet at the time of sensing of each sensor can be obtained.

[0207] The coordinate data collected by the controller (120) can be collected by the unit ID assignment server (130) at predetermined time intervals.

[0208] In step P30, the unit ID assignment server (130) can collect equipment data and coordinate data at predetermined time intervals and correspond the time data from which each data was collected with the equipment data and coordinate data.

[0209] The unit ID assignment server (130) can assign the unit ID of the equipment unit to which each sensor belongs to the equipment data and the time data at which the equipment data was collected. The unit ID assignment server (130) can assign the unit ID of the equipment unit to which each sensor belongs to the coordinate data and the time data at which the coordinate data was collected.

[0210] The unit ID assignment server (130) can assign the unit ID to the equipment data and the collected time data based on reference information including the unit ID of each equipment unit and the correspondence relationship of the sensor belonging to the equipment unit.

[0211] In step P40, the monitoring data generation server (140) can generate monitoring data by matching the equipment data and the coordinate data based on the collected time data and the unit ID, as shown in FIGS. 6 to 8.

[0212] The monitoring data generation server (140) can generate monitoring data by matching at least one of at least one unit ID corresponding to the same coordinate data, at least one sensor equipment data belonging to each unit ID, and at least one collected time data, as shown in FIG. 9.

[0213] Monitoring data can also be generated in an electrode manufacturing process where the processing of the upper and lower surfaces of the electrode sheet is performed sequentially on a continuous process line.

[0214] The monitoring data generation server (140) can match the first equipment data sensed by at least one first sensor at an upper surface position of the electrode sheet corresponding to the same coordinate data of the electrode sheet and the first unit ID of the first equipment unit to which the first sensor belongs with the coordinate data.

[0215] Additionally, the monitoring data generation server (140) can match the second equipment data sensed by at least one second sensor at the lower surface location of the electrode sheet corresponding to the same coordinate data and the second unit ID of the second equipment unit to which the second sensor belongs with the coordinate data.

[0216]

[0217] FIG. 13 illustrates a computing system that executes a method of operation of a unit ID assignment server (130) or a monitoring data generation server (140) according to one embodiment disclosed in this document.

[0218] Referring to FIG. 13, a computing system (20) according to one embodiment may include a server controller (21), memory (22), an input / output device (23), and a communication interface (24).

[0219] The server controller (21) may be, for example, a microcontroller (MCU). A microcontroller is a miniature controller that incorporates minimal computing elements, such as a processor, memory, and an input / output bus, into an integrated circuit, and typically refers to a computing device designed for embedded applications. In some embodiments, the processor may include both a CPU and a GPU.

[0220] The server controller (21) can execute various programs stored in memory (22) (such as a program for the unit ID assignment process, a program for matching equipment data and coordinate data, etc.) and perform the functions of the server (130, 140) described with reference to FIGS. 1 to 9 through these programs.

[0221] Memory (22) can store various programs described above. Multiple memory units (22) may be provided as needed. Memory (22) may include volatile memory such as RAM and / or non-volatile memory such as ROM and storage media. Examples of storage media include solid-state storage media (e.g., solid-state drives and / or removable flash memory), optical storage media (e.g., optical discs), and magnetic storage media (e.g., hard disk drives). The memory (22) listed above is merely an example and is not limited thereto.

[0222] The input / output device (23) may include an input device (not shown) such as a keyboard, mouse, or touch panel, and an output device such as a display (not shown).

[0223] An input / output interface (not shown) may be provided to connect the input / output device (23) and the controller (21) and to enable the transmission and reception of data.

[0224] The communication interface (24) is configured to enable the transmission and reception of various data between the server and other devices, and may be various devices capable of supporting wired or wireless communication. Through the communication interface (24), the servers (130, 140) can transmit and receive various programs or various data, etc., with the controller (120).

[0225] A method of operation of a server according to one embodiment disclosed in this document can be recorded in memory (22) and executed by a server controller (21).

[0226] The components of the above-described computing system (20) can be connected to each other through one or more buses (25).

[0227] The present invention has been described in more detail above through drawings and embodiments. However, the configurations described in the drawings or embodiments described in this specification are merely one embodiment of the present invention and do not represent all technical concepts of the present invention; therefore, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0228] [Explanation of the symbol]

[0229] 10: Monitoring Data Generation System

[0230] 110: Facility Unit

[0231] 111: Kwon Chul-gi

[0232] 112: Cotter

[0233] 113: Hair dryer

[0234] 114: Half Slitter

[0235] 115: Winder

[0236] SE1: 1st rotary encoder

[0237] SE2: Second rotary encoder

[0238] Sa, Sb, Sc: Sensors included in the coater

[0239] Sd,Se: Sensors included in the dryer

[0240] Sf: Sensor included in the half-slitter

[0241] 120: Controller

[0242] 130: Unit ID Assignment Server

[0243] 140: Monitoring Data Generation Server

[0244] ES: Electrode sheet

[0245] ED: Equipment Data

[0246] CD: Coordinate data

[0247] UI: Unit ID

Claims

1. A plurality of equipment units installed along the electrode sheet, comprising at least one sensor for sensing equipment data; A controller that collects coordinate data when the sensor senses the equipment data, as coordinate data indicating the position of the electrode sheet; A unit ID assignment server that collects the coordinate data and equipment data sensed by the sensor at predetermined time intervals, assigns the unit ID of the equipment unit to which each sensor belongs to the equipment data and the time data at which the equipment data was collected, and assigns the unit ID of the equipment unit to which each sensor belongs to the coordinate data and the time data at which the coordinate data was collected; and A monitoring data generation system comprising a monitoring data generation server that generates monitoring data by matching the facility data and the coordinate data based on the collected time data and the unit ID.

2. In Paragraph 1, The above coordinate data is a monitoring data generation system that collects data based on the unwinding amount signal or winding amount signal of the electrode sheet.

3. In Paragraph 2, The coordinate data when the above sensor senses the above equipment data is, It is obtained by adding or subtracting a first offset length to the unwinding or winding amount of the electrode sheet at the time of sensing, and A monitoring data generation system in which the first offset length is the length of the electrode sheet interposed between the electrode sheet unwinder or winder and the portion of the electrode sheet where the sensor is located.

4. In Paragraph 1, The above unit ID assignment server is a monitoring data generation system that assigns the unit ID to the equipment data and the collected time data based on reference information including the unit ID of each equipment unit and the correspondence relationship of the sensor belonging to the equipment unit.

5. In Paragraph 1, The above monitoring data generation server is a monitoring data generation system that generates monitoring data by matching at least one of at least one unit ID corresponding to the same coordinate data, at least one sensor equipment data belonging to each unit ID, and at least one collected time data based on the above coordinate data.

6. In Paragraph 1, A monitoring data generation system that generates monitoring data in an electrode manufacturing process in which processing of the upper and lower surfaces of the electrode sheet is performed sequentially on a continuous process line.

7. In Paragraph 6, The monitoring data generation server matches the first equipment data sensed by at least one first sensor at an upper surface position of an electrode sheet corresponding to the same coordinate data of the electrode sheet, and the first unit ID of the first equipment unit to which the first sensor belongs, with the coordinate data, and also A monitoring data generation system that matches second equipment data sensed by at least one second sensor at a lower surface position of an electrode sheet corresponding to the same coordinate data, and the second unit ID of the second equipment unit to which the second sensor belongs, with the coordinate data.

8. A step of collecting equipment data sensed by at least one sensor included in each of a plurality of equipment units installed along an electrode sheet; A step of collecting coordinate data when the sensor senses the equipment data, as coordinate data indicating the position of the electrode sheet; A step of assigning the unit ID of the equipment unit to which each sensor belongs to the equipment data and the time data from which the equipment data was collected, and assigning the unit ID of the equipment unit to which each sensor belongs to the coordinate data and the time data from which the coordinate data was collected; and A method for generating monitoring data comprising the step of generating monitoring data by matching the facility data and the coordinate data based on the collected time data and the unit ID.

9. In Paragraph 8, The above coordinate data is a method for generating monitoring data collected based on the unwinding amount signal or winding amount signal of the electrode sheet.

10. In Paragraph 9, The coordinate data when the above sensor senses the above equipment data is, It is obtained by adding or subtracting a first offset length to the unwinding or winding amount of the electrode sheet at the time of sensing, and A method for generating monitoring data, wherein the first offset length is the length of the electrode sheet interposed between the electrode sheet unwinder or winder and the portion of the electrode sheet where the sensor is located.

11. In Paragraph 8, A method for generating monitoring data by matching at least one of at least one unit ID corresponding to the same coordinate data, at least one sensor equipment data belonging to each unit ID, and at least one collected time data based on the above coordinate data.

12. In Paragraph 8, A method for generating monitoring data in an electrode manufacturing process in which the upper and lower surfaces of the electrode sheet are processed sequentially in a continuous process line.

13. In Paragraph 12, Matching first equipment data sensed by at least one first sensor at an upper surface position of an electrode sheet corresponding to the same coordinate data of the electrode sheet, and the first unit ID of the first equipment unit to which the first sensor belongs, with said coordinate data, and also A method for generating monitoring data that matches second equipment data sensed by at least one second sensor at a lower surface position of an electrode sheet corresponding to the same coordinate data, and the second unit ID of the second equipment unit to which the second sensor belongs, with the coordinate data.

14. An electrode manufactured by cutting an electrode sheet that moves during the process according to a predetermined standard, The above electrode is equipped with an electrode ID, and The above electrode ID is, Coordinate data indicating the position of the electrode sheet during the process, and Equipment data sensed by at least one sensor at the electrode sheet location of the above coordinate data, and An electrode that matches the unit ID of the facility unit to which the above sensor belongs.

15. In Paragraph 13, The above electrode is a double-sided coated electrode having an electrode slurry coated on its upper and lower surfaces, and The above electrode ID is, First equipment data sensed by at least one first sensor at an upper surface position of an electrode sheet corresponding to the above coordinate data and matched with the first unit ID of the first equipment unit to which the first sensor belongs, In addition, an electrode that matches the second equipment data sensed by at least one second sensor at the lower surface position of the electrode sheet corresponding to the coordinate data, and the second unit ID of the second equipment unit to which the second sensor belongs.

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