Browse Prior Art Database

Method for Detecting Book Presence/Absence in a Bindery Line

IP.com Disclosure Number: IPCOM000104504D
Original Publication Date: 1993-Apr-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 1 page(s) / 48K

Publishing Venue

IBM

Related People

Colson, JC: AUTHOR [+2]

Abstract

Disclosed is a computer program for verifying book presence and absence and for diverting bad books and extra pages as soon as possible in a perfect binder line.

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This is the abbreviated version, containing approximately 69% of the total text.

Method for Detecting Book Presence/Absence in a Bindery Line

      Disclosed is a computer program for verifying book presence and
absence and for diverting bad books and extra pages as soon as
possible in a perfect binder line.

      In a bindery line, it is important to verify the presence and
absence of books and spaces as the line progresses.  This is needed
to detect missing and extra books as early as possible, to generate
reorder information and divert information, and to keep the status of
the line and the books within it intact at all times.

      Each sensor used for verification (verify sensors, print
demands, before/after glue) is associated with a configured location.
This location is represented as the section, slot, and offset of the
sensor within the bindery line.  When the sensor data is initialized,
the point one half cycle ahead of this configured location is
computed.  This is called the cutoff.

      During the execution of the job, a Seen process is run that
determines, for each sensor, if a slot on the line has moved across
the cutoff.  In addition, another task for each sensor waits on the
I/O point associated with it.  When the I/O point is triggered, the
count of Seen is incremented, and the location where it was triggered
is recorded.  As the line moves across the cutoff for the sensor, a
Check function is called.

      The Check function compares the count of the Seen process and
the data for the book that is in the...