An outdoor device for an air conditioner is provided. The materials or components to be connected are overlapped to form an overlapping region in a joining region of the overlapping region. The profile model is defined by profile parameters that characterize the geometric shape of the structure. The rotated and fixed magnets repel each other. The magnetic layer materials may be localized or strategically placed, and may comprise a resin with a particulate ferromagnetic filler. Results of testing of hypotheses may be saved and the results may be used to identify objects.