公开(公告)号：US12058797B2

公开(公告)日：2024-08-06

申请号：US16946098

申请日：2020-06-05

Applicant: WHIRLPOOL CORPORATION

Inventor： Andrea Gallivanoni ,  Cristiano Vito Pastore ,  Federica Inderst

IPC: H05B6/06 ,  F24C7/08 ,  G01B7/02 ,  G01D5/20 ,  H05B6/12

CPC classification number: H05B6/065 ,  F24C7/083 ,  G01B7/02 ,  G01D5/20 ,  H05B6/1272 ,  H05B2213/03 ,  H05B2213/05

Abstract: A method is provided for identifying cookware items placed on top of an induction cooktop having a plurality of coils. The method includes the following steps: acquire coverage factor information for each coil and collect it into a matrix; identify all local maxima in the matrix; find the coordinates of each of the local maxima as follows: when the local maxima is a single coil, the coordinates are those of the coil center, and when the local maxima is a region of contiguous coils, the coordinates are those of a centroid of the region; calculate distances from each coil to each of the coordinates of the identified local maxima; determine a minimum among the distances; classify the coils in clusters, based on the distances from the local maxima; and use the identified coil clustering to estimate the position, shape, size, and orientation of the cookware items.

公开(公告)号：US20210385913A1

公开(公告)日：2021-12-09

申请号：US16946098

申请日：2020-06-05

Applicant: WHIRLPOOL CORPORATION

Inventor： Andrea Gallivanoni ,  Cristiano Vito Pastore ,  Federica Inderst

IPC: H05B6/06 ,  G01D5/20 ,  G01B7/02 ,  H05B6/12 ,  F24C7/08

Abstract: A method is provided for identifying cookware items placed on top of an induction cooktop having a plurality of coils. The method includes the following steps: acquire coverage factor information for each coil and collect it into a matrix; identify all local maxima in the matrix; find the coordinates of each of the local maxima as follows: when the local maxima is a single coil, the coordinates are those of the coil center, and when the local maxima is a region of contiguous coils, the coordinates are those of a centroid of the region; calculate distances from each coil to each of the coordinates of the identified local maxima; determine a minimum among the distances; classify the coils in clusters, based on the distances from the local maxima; and use the identified coil clustering to estimate the position, shape, size, and orientation of the cookware items.

公开(公告)号：US11596030B2

公开(公告)日：2023-02-28

申请号：US16946101

申请日：2020-06-05

Applicant: WHIRLPOOL CORPORATION

Inventor： Andrea Gallivanoni ,  Cristiano Vito Pastore ,  Federica Inderst

IPC: H05B6/06 ,  F24C7/08

Abstract: A method for identifying cookware on an induction cooktop having coils, includes the steps: (a) acquire a coverage factor matrix; (b) set a present level at a maximum value of the matrix; (c) count closed iso-level curves corresponding to the present level and save the result; (d) decrease the level by an amount; (e) count closed curves corresponding to the decreased level; (f) when the number of closed curves at the present level is not lower than that from the previous level, update the saved result with the present level; (g) when the number of closed curves at the present level is lower than that from the previous level, keep the previously saved result; (h) repeat steps (d) to (h), until the number decreases; (i) assign coils inside the curve to a distinct cluster; and (j) use the clustering to estimate a position, shape, size, and orientation of the cookware.

公开(公告)号：US20210385914A1

公开(公告)日：2021-12-09

申请号：US16946101

申请日：2020-06-05

Applicant: WHIRLPOOL CORPORATION

Inventor： Andrea Gallivanoni ,  Cristiano Vito Pastore ,  Federica Inderst

IPC: H05B6/06 ,  F24C7/08

Abstract: A method for identifying cookware on an induction cooktop having coils, includes the steps: (a) acquire a coverage factor matrix; (b) set a present level at a maximum value of the matrix; (c) count closed iso-level curves corresponding to the present level and save the result; (d) decrease the level by an amount; (e) count closed curves corresponding to the decreased level; (f) when the number of closed curves at the present level is not lower than that from the previous level, update the saved result with the present level; (g) when the number of closed curves at the present level is lower than that from the previous level, keep the previously saved result; (h) repeat steps (d) to (h), until the number decreases; (i) assign coils inside the curve to a distinct cluster; and (j) use the clustering to estimate a position, shape, size, and orientation of the cookware.