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Self-Optimizing Algorithm for Coin Recognition

IP.com Disclosure Number: IPCOM000114650D
Original Publication Date: 1995-Jan-01
Included in the Prior Art Database: 2005-Mar-29
Document File: 2 page(s) / 79K

Publishing Venue

IBM

Related People

Azuchi, I: AUTHOR [+3]

Abstract

The self-optimizing algorithm for coin recognition by 4745 Coin IN/OUT Banking Terminal is described.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Self-Optimizing Algorithm for Coin Recognition

      The self-optimizing algorithm for coin recognition by 4745 Coin
IN/OUT Banking Terminal is described.

      4745 uses outputs of some characteristics from Coin Recognition
Unit (CRU) for recognition, and decides what denomination it is by
comparing these outputs with acceptable ranges.  But different
machine outputted different values and the outputs were affected by
room temperature too.  outputs were affected by room temperature too.
Therefore, the range had to set to be wide in order to be correctly
recognized by any machines.  However, some kinds of foreign coins,
whose characteristics were similar to Japanese ones, were
mis-recognized
as Japanese ones because of their wide range.

      In the developed algorighm, the ranges are set properly for
each machine in run time using actual outputs from CRU.

      By this approach, acceptable ranges can be narrowed.  However,
it is enough range for recognition of Japanese coins.  Therefore,
foreign coins can be rejected without Japanese coin rejection.  This
enhancement could be achieved only by microcode change.  Hence, the
cost is very low.

      Correct CRU output data of Japanse coins are needed to optimize
the acceptable ranges for eache machines.  Therefore, the following
conditions were set.
  1.  In loading process, no foreign coins are put into the machines.
  2.  In re-deposit process of rejected coins, no foreign coins are
put
       into the machine.

      Because an operator can easily check these conditions.  By
these conditions, CRU data obtained during above processes can be
used for optimizing the range.

      The range is defined by the maximum and minimum values of some
characteristics for each Japanese denominations.  4745 accepts coins
whose all characteris...