Learned model generation method and apparatus

A learned model generation method of generating a learned model for maintenance of a winding apparatus including

• a sheet material supplier having a first supply mechanism that supplies a first electrode sheet, a second supply mechanism that supplies a second electrode sheet, a first bonding roller that is provided on a first electrode sheet side, and a second bonding roller that is provided on a second electrode sheet side, and is paired with the first bonding roller to bond the first electrode sheet and the second electrode sheet to each other,
• a first winding core,
• a drive mechanism that moves the first winding core to a predetermined winding position, and winds the first electrode sheet and the second electrode sheet in an overlapping manner on the first winding core, and
• a sensor that reads a first end surface of the first electrode sheet and a second end surface of the second electrode sheet along a radial direction of a first winding body in which the first electrode sheet and the second electrode sheet are wound in an overlapping manner by a plurality of turns on the first winding core, the learned model generation method comprising:
• acquiring, from the sensor, first group data indicating a position of the first end surface read along the radial direction of the first winding body, and second group data indicating a position of the second end surface read along the radial direction of the first winding body;
• determining whether or not the first winding body has a defect and whether or not a cause of the defect is the sheet material supplier when the first winding body has the defect on the basis of a positional relationship among continuous positions of the first end surface indicated by the first group data, continuous positions of the second end surface indicated by the second group data, and reference lines;
• determining which constituent of the sheet material supplier is the cause of the defect in a case where it is determined that the cause of the defect is the sheet material supplier;
• outputting information for a notification of the cause of the defect to a display apparatus;
• and
• not using the first group data and the second group data read before the cause of the defect is maintained for updating the learned model in a case where it is determined that a second difference between a first probability that the defect of the first winding body is improved and a second probability that the defect of the first winding body is improved is less than a predetermined value, the first probability being obtained by inputting the first group data and the second group data before the cause of the defect is maintained to the learned model, and the second probability being obtained by inputting the first group data and the second group data after the cause of the defect is maintained to the learned model, and updating the learned model by using the first group data and the second group data before the cause of the defect is maintained in a case where it is determined that the second difference is greater than or equal to the predetermined value.

An apparatus outputting information for displaying information regarding maintenance of a winding apparatus including

• a sheet material supplier having a first supply mechanism that supplies a first electrode sheet, a second supply mechanism that supplies a second electrode sheet, a first bonding roller that is provided on a first electrode sheet side, and a second bonding roller that is provided on a second electrode sheet side, and is paired with the first bonding roller to bond the first electrode sheet and the second electrode sheet to each other,
• a first winding core,
• a drive mechanism that moves the first winding core to a predetermined winding position and winds the first electrode sheet and the second electrode sheet in an overlapping manner on the first winding core, and
• a sensor that reads a first end surface of the first electrode sheet and a second end surface of the second electrode sheet along a radial direction of a first winding body in which the first electrode sheet and the second electrode sheet are wound in an overlapping manner by a plurality of turns on the first winding core, the apparatus comprising:
• an acquirer that acquires, from the sensor, first group data indicating a position of the first end surface read along the radial direction of the first winding body, and second group data indicating a position of the second end surface read along the radial direction of the first winding body;
• a notification determinator that determines whether or not the first winding body has a defect and whether or not a cause of the defect is the sheet material supplier when the first winding body has the defect on the basis of a positional relationship among continuous positions of the first end surface indicated by the first group data, continuous positions of the second end surface indicated by the second group data, and reference lines, determines which constituent of the sheet material supplier is the cause of the defect in a case where it is determined that the cause of the defect is the sheet material supplier, and outputs information for a notification of the cause of the defect to a display apparatus for maintenance;
• and
• a model generator that determines whether or not the first group data and the second group data read before the cause of the defect is maintained are used for generating the learned model on the basis of a first occurrence degree of the defect of the first winding body before the cause of the defect is maintained and a second occurrence degree of the defect of the first winding body after the cause of the defect is maintained, and generates the learned model by using the first group data and the second group data read before the cause of the defect is maintained in a case where it is determined that the first group data and the second group data are used.