Inspection system for braille characters
AssigneeBobst Mex SA
InventorsAlexandre DE KALBERMATTEN, Thomas HOFMANN
Life of this patent
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Abstract
The present invention relates to inspection system (46) for checking braille characters in a converting machine (1), the inspection system comprises an image sensor (48) configured to capture at least one image of a first braille tool (36) provided with embossing protrusions (40), a memory (52) and a control unit (51). The control unit is configured to determine an actual braille lettering sequence (Sa) from the at least one image and compare the actual braille lettering sequence to a desired braille lettering sequence stored in the memory.
Claims18
An inspection system for checking braille characters in a converting machine, the inspection system comprising:
- an image sensor configured to capture at least one image of a first braille tool provided with embossing protrusions, the first braille tool being provided on a circumference of a first embossing roller,
- a memory configured to store a program and a desired braille lettering sequence, and
- control unit configured to execute the program which enables the control unit to retrieve the at least one image from the image sensor, determine an actual braille lettering sequence from the at least one image, and to compare the actual braille lettering sequence to the desired braille lettering sequence stored in the memory.
A method for inspecting braille characters in a converting machine, the method comprising:
- A) Entering a desired braille lettering sequence into a main control system of the converting machine,
- B) Activating an image sensor to capture at least one image of a surface of a rotating first braille tool provided with embossing protrusions,
- C) Retrieving the at least one image from the image sensor,
- D) Determining an actual braille lettering sequence on the rotating first braille tool from the at least one image,
- E) Comparing and determining a correspondence between the actual braille lettering sequence and the desired braille lettering sequence, and
- F) Generating a control signal to either start or suspend the converting machine.
Dependencies are inferred from the claim text.