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A dishwasher (100) and a method for treating washware, where the dishwasher (100) comprises a washing cavity (110) configured to receive washware (200), a rack (120) removably inserted in the washing cavity (110), and a washware recognition system (300) configured to detect a washware characteristics (310) for each washware (200) in the washing cavity (110). The washware recognition system (300) comprises two image capturing devices (320, 330) capturing at least one first, second and third image (321, 331, 332) of the washware in the rack (120), a neural network (340) configured to, based on the at least one first (321), second (331) and third images (332), determine a washware characteristics (310), and a control unit (360) configured to evaluate the washware characteristics (310) and determine a washware treatment cycle (350) based on the washware characteristics (310).
rivendicazioni
A method (400) for treating washware (200) using a dishwasher (100) for treating washware, comprising:
a washing cavity (110) configured to receive washware (200);
a rack (120) removably inserted in the washing cavity (110), and configured to hold said washware (200);
a washware recognition system (300) configured to detect a washware characteristics (310) for each washware (200) in the washing cavity (110), the washware recognition system (300) comprising a first image capturing device (320) capturing at least one first image (321) of the washware in the rack (120), a second image capturing device (330) capturing at least one second image (331) and at least one third image (332) of the washware (200) in the rack (120), a neural network (340), NN, configured to, based on the at least one first (321), second (331) and third images (332), determine a washware characteristics (310); and
a control unit (360) configured to evaluate the washware characteristics (310) and determine a washware treatment cycle (350) based on the washware characteristics (310), the method comprising: a. loading the rack (120) with washware (200); b. capturing at least one first image (321) of the washware (200) in the rack (120) using the first image capturing device (320); c. capturing at least one second image (331) of the washware (200) in the rack (120) using the second image capturing device (330); d. heating the washware (200) in the rack (120) using a heating medium at a predetermined temperature (T1) for a predetermined amount of time (T2); e. capturing at least one third image (332) of the washware (200) in the rack (120) using the second image capturing device (330); f. determining washware characteristics (310) based on the at least one first image, the at least one second image, and the at least one third image; g. determining, based on the washware characteristics (310), a washware treatment cycle (350); and h. treating the washware (200) in the washing cavity (110) according to the determined washware treatment cycle (350).
The method (400) according to claim 1, wherein the washware characteristics (310) comprises information about a type of the washware (200).
The method (400) according to claim 1, wherein the washware characteristics (310) further comprises information about a material of the washware (200).
The method (400) according to claim 1, wherein the washware treatment cycle (350) comprises a set of parameters determined by the control unit (360), the parameters including at least one of the following:
a time duration of the washware treatment cycle;
a temperature of a washing liquid;
a temperature of a rinsing liquid;
a temperature of a drying medium;
a time duration of a drying cycle;
an amount of detergent; and
an amount of washing liquid.
The method (400) according to claim 4, wherein the washware (200) in the rack (120) is a plurality of washware (200) having different washware characteristics (310), and wherein the washware treatment cycle (350) is determined based on the washware characteristics (310) associated with the washware treatment cycle (350) with the lowest temperature of a washing liquid.
The method (400) according to claim 1, wherein the heating medium in step d is water or air being supplied to the washing cavity (110) for the predetermined amount of time (T2), the water or air having the predetermined temperature (T1).
The method (400) according to claim 1, wherein the washware characteristics (310) is at least partly determined based on a temperature increase of each heated washware (200) in the rack (120), as a result of step d.
The method (400) according to claim 7, wherein the temperature increase is determined by comparison of the at least one second image (331) from step c and the at least one third image (332) from step e.
Dishwasher for Treating Washware (EP, 2024) — EP 4427656 A1
Load Classification: A Case Study for Applying Neural Networks in Hyper-Constrained Embedded Devices (articolo in rivista, 2021) — Andrea Agiollo, Andrea Omicini