US 12,087,074 B2
Computer-implemented method for reading a digital graphical diagram representing an electric circuit
Antonello Antoniazzi, Milan (IT); Matteo Matteucci, Saronno (IT); and Gabriele Perrone, Milan (IT)
Assigned to ABB S.p.A., Milan (IT)
Appl. No. 17/629,965
Filed by ABB S.p.A., Milan (IT)
PCT Filed May 14, 2020, PCT No. PCT/EP2020/063517
§ 371(c)(1), (2) Date Jan. 25, 2022,
PCT Pub. No. WO2021/013399, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 19188378 (EP), filed on Jul. 25, 2019.
Prior Publication US 2022/0254181 A1, Aug. 11, 2022
Int. Cl. G06V 30/422 (2022.01); G06V 30/146 (2022.01); G06V 30/412 (2022.01)
CPC G06V 30/422 (2022.01) [G06V 30/1473 (2022.01); G06V 30/412 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A method for reading a digital graphical diagram representing an electric circuit, the graphical diagram including one or more diagram pages, each representing a portion of the electric circuit,
wherein each diagram page includes one or more graphical objects and one or more graphical connectors,
wherein each graphical object is formed by a component object representing a component of the electric circuit or by a text object representing a text area of the graphical diagram or by a table object representing a table area of the graphical diagram, and
wherein each graphical connector represents an electrical connection linking at least two components of the electric circuit,
the method comprising:
for each diagram page, detecting the graphical objects included in the diagram page;
for each diagram page, basing on the detected graphical objects, obtaining predictive information related to the components included in a portion of electric circuit represented in the diagram page; and
for each diagram page, harmonizing predictive information related to the components of the portion of electric circuit represented in the diagram page and providing an identification list of the components of the electric circuit,
wherein the method further comprises pre-processing a graphical file including the graphical diagram in digital format by:
converting the graphical file into a first image file including the graphical diagram in digital format;
splitting the first image file into one or more second image files, each including a diagram page in digital format; and
if necessary, reducing a size of the second image files.