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Human error preventing system using bar code reading collations

  • US 5,266,780 A
  • Filed: 08/06/1991
  • Issued: 11/30/1993
  • Est. Priority Date: 08/10/1990
  • Status: Expired due to Fees
First Claim
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1. A method for preventing human error in performing a procedure, comprising the steps of:

  • (a) providing a work slip to a worker indicating work data as to procedure to be performed in a human readable form and with a work instruction bar code representing the work data,(b) the worker performing the procedure in reference to the work slip,(c) providing a result representing bar code representing the result of the procedure performed by the worker with reference to the work slip,(d) the worker causing a bar code reader to read the result representing bar code and the work instruction bar code,(e) transferring reading signals from the bar code reader to a work control computer,(f) the work control computer collating the work instruction bar code and result representing bar code reading signals, and(g) notifying the worker whether the result of collation is appropriate.

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