Global Patent Index - EP 3517015 A1

EP 3517015 A1 20190731 - METHOD FOR AUTOMATICALLY EVALUATING THE DEGREE OF CLEANLINESS OF THE FILTERING SYSTEM IN A DISHWASHING MACHINE

Title (en)

METHOD FOR AUTOMATICALLY EVALUATING THE DEGREE OF CLEANLINESS OF THE FILTERING SYSTEM IN A DISHWASHING MACHINE

Title (de)

VERFAHREN ZUR AUTOMATISCHEN BEURTEILUNG DES REINHEITSGRADES DES FILTERSYSTEMS IN EINER GESCHIRRSPÜLMASCHINE

Title (fr)

PROCÉDÉ D'ÉVALUATION AUTOMATIQUE DU DEGRÉ DE PROPRETÉ DU SYSTÈME DE FILTRAGE DANS UN LAVE-VAISSELLE

Publication

EP 3517015 A1 20190731 (EN)

Application

EP 19152569 A 20190118

Priority

IT 201800001812 A 20180125

Abstract (en)

The present disclosure relates to a method for automatically evaluating the degree of cleanliness of the filtering system in a dishwashing machine (1) comprising a washing zone (2) provided with a washing fluid collection zone (2"') in which a filter (F) is positioned, comprising steps of: acquiring (11) a first digital image (11A) representative of a first condition of the filter (F), digitally processing (12) the first digital image 11A so as to obtain a first processed image 11B, wherein the first processed image (11B) identifies a first surface value related to the surface area of the collection tank (F") of the filter (F) in a first condition in which the filter (F) is clean, acquiring (13) a second digital image (13A) representative of a second condition of the filter (F), digitally processing (14) the second digital image (13A) so as to obtain a second processed image (13B), wherein the second processed image (13B) identifies a second surface value related to the surface area of an accumulation of dirt present in the collection tank (F") in a second condition in which the filter (F) contains an accumulation of dirt, comparing (15) the second surface value with the first surface value to calculate an occlusion percentage value (OCL) of the filter (F) when passing between the first condition and the second condition, generating (16) a dirt presence signal (Sig) indicative of the presence of an accumulation of dirt in said filter (F), when the occlusion percentage value (OCL) of the filter (F) exceeds a predefined threshold value, generating (17) a sound and/or visual signal indicative of an obstructed filter condition, when the dirt presence signal (Sig) is generated.

IPC 8 full level

A47L 15/42 (2006.01)

CPC (source: CN EP)

A47L 15/00 (2013.01 - CN); A47L 15/0063 (2013.01 - CN); A47L 15/42 (2013.01 - CN); A47L 15/4202 (2013.01 - CN); A47L 15/4208 (2013.01 - CN EP); A47L 15/4217 (2013.01 - CN); A47L 15/4293 (2013.01 - CN); A47L 15/0049 (2013.01 - EP); A47L 2401/34 (2013.01 - CN EP); A47L 2501/26 (2013.01 - CN EP); A47L 2601/02 (2013.01 - CN)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3517015 A1 20190731; EP 3517015 B1 20200923; CN 110074736 A 20190802; ES 2835343 T3 20210622; IT 201800001812 A1 20190725; RU 2019101620 A 20200727; RU 2019101620 A3 20220225

DOCDB simple family (application)

EP 19152569 A 20190118; CN 201910073864 A 20190125; ES 19152569 T 20190118; IT 201800001812 A 20180125; RU 2019101620 A 20190122