Printing press monitoring and advising system

• US 5,521,844 A
• Filed: 09/10/1993
• Issued: 05/28/1996
• Est. Priority Date: 09/10/1993
• Status: Expired due to Fees

• Current Assignee: Beloit Technologies, Inc. (Komatsu Ltd.)
• Original Assignee: Beloit Corp. (Komatsu Ltd.)
• Inventors: Karis, Arthur T.
• Primary Examiner(s): Voeltz, Emanuel T.
• Assistant Examiner(s): CHOI, KYLE JAEHUN
• Application Number:
  US08/120,213
• Time in Patent Office: 991 Days
• Field of Search: 364/551.01, 364/469, 364/400, 364/188, 364/526, 364/550, 364/471, 395/575, 395/912, 395/914, 355/101, 355/203, 355/207
• US Class Current: 702/185
• CPC Class Codes: B41F 33/0009 Central control units
• CPC Class Codes: B41F 33/02 Arrangements of indicating devices, e.g. counters
• CPC Class Codes: B41F 33/18 Web break detection B41F33/04 takes precedence
• CPC Class Codes: G06F 11/2257 using expert systems
• CPC Class Codes: Y10S 706/912 Manufacturing or machine, e.g. agricultural machinery, machine tool

Abstract

A printing press monitoring and advising system is shown utilizing an inference engine to analyze the operation of the press intelligently. The system analyzes detected press and paper characteristics in accordance with a symptom table, conclusion table, and symptom/conclusion table to advise the operator as to press operation settings, such as tension settings, prior to the start of press operations; possible problems during press operations, and the type and/or the cause of defects as such defects are detected by the system.

Claims

1. A real time, intelligent printing press monitoring system for collecting and analyzing data representing the operation of a press and paper being run on the press, comprising:

a plurality of sensors for monitoring a plurality of characteristics of the press and the paper being run on the press to provide real time sensor data;

means for storing said real time sensor data, at least a portion of said sensor data representing sensed symptoms of said press and paper;

means for storing a symptom table identifying a plurality of symptoms, a conclusion table identifying a plurality of defects in said press and paper and a symptom/conclusion table relating the defects in said conclusion table to the symptoms in said symptom table; and

means for analyzing said sensed symptoms in real time as said data is collected utilizing said symptom table, conclusion table, and symptom/conclusion table to identify a most likely defect in said paper or press.

2. A real time, intelligent printing press monitoring system as recited in claim 1 wherein a plurality of said paper characteristic sensors include tension sensors for monitoring the tension of said paper being run at a number of positions along said press.

3. A real time, intelligent printing press monitoring system as recited in claim 1 wherein said press includes ink for printing and said system includes a plurality of sensors for monitoring the temperature of said ink to provide real time temperature sensor data.

4. A real time, intelligent printing press monitoring system as recited in claim 1 wherein said press includes at least one speed sensor for monitoring the speed of said paper.

5. A real time, intelligent printing press monitoring system as recited in claim 1 wherein said paper characteristic sensors include at least one sensor for detecting an edge crack in said paper.

6. A real time, intelligent printing press monitoring system as recited in claim 1 wherein said paper characteristic sensors include at least one sensor for detecting a hole in said paper.

7. A real time, intelligent printing press monitoring system as recited in claim 1 wherein said paper characteristic sensors include at least one sensor for detecting a break in said paper.

8. A real time, intelligent printing press monitoring system as recited in claim 1 wherein said plurality of sensors includes at least one tension sensor and said system further includes means for displaying said tension sensor data in real time as said data is collected.

9. A real time, intelligent printing press monitoring system as recited in claim 8 wherein said display means displays said tension sensor data in real time relative to recommended tension levels.

10. A real time, intelligent printing press monitoring system as recited in claim 9 wherein said conclusion table further identifies a plurality of press operation settings including tension level settings, said symptom/conclusion table relates each of said operation settings to at least one symptom and said analyzing means analyzes said sensed symptoms utilizing said symptom table, conclusion table, and symptom/conclusion table to recommend press operation settings including at least one tension level setting.

11. A real time, intelligent printing press monitoring system for collecting and analyzing data representing the operation of a press and data representing a roll or paper being run on the press, comprising:

means for storing historical data relating to previously run paper rolls and past press operations;

means for retrieving from said historical data storing means data related to the paper roll being run and data related to the press on which said paper roll is being run, said retrieved data representing historical data symptoms;

a plurality of sensors for monitoring a plurality of characteristics of the press and paper being run on the press to provide real time sensor data;

means for storing the real time sensor data collected from said plurality of sensors, at least a portion of said stored real time sensor data representing sensed symptoms of said press and paper;

means for storing a symptom table identifying a plurality of symptoms, a conclusion table identifying a plurality of defects and a symptom conclusion table relating each defect in said conclusion table to at least one symptom in said symptom table; and

means for analyzing said sensed symptoms during the operation of said press with said historical data symptoms utilizing said symptom table, conclusion table, and symptom/conclusion table.

12. A real time, intelligent printing press monitoring system as recited in claim 11 wherein a plurality of said paper characteristic sensors include tension sensors for monitoring the tension of said paper being run at a number of positions along said press.

13. A real time, intelligent printing press monitoring system as recited in claim 11 wherein said press includes ink for printing and said system includes a plurality of sensors for monitoring the temperature of said ink to provide real time temperature sensor data.

14. A real time, intelligent printing press monitoring system as recited in claim 11 wherein said press includes at least one speed sensor for monitoring the speed of said paper.

15. A real time, intelligent printing press monitoring system as recited in claim 11 wherein said paper characteristic sensors include at least one sensor for detecting an edge crack in said paper.

16. A real time, intelligent printing press monitoring system as recited in claim 11 wherein said paper characteristic sensors include at least one sensor for detecting a hole in said paper.

17. A real time, intelligent printing press monitoring system as recited in claim 11 wherein said paper characteristic sensors include at least one sensor for detecting a break in said paper.

18. A real time, intelligent printing press monitoring system as recited in claim 11 wherein said plurality of sensors includes at least one tension sensor and said system further includes means for displaying said tension sensor data in real time as it is collected.

19. A real time, intelligent printing press monitoring system as recited in claim 18 wherein said display means displays said tension sensor data in real time relative to recommended tension levels.

20. A real time, intelligent printing press monitoring system as recited in claim 19 wherein said conclusion table further identifies a plurality of press operation settings including tension level settings, said symptom/conclusion table relates each of said operation settings to at least one symptom and said analyzing means analyzes said sensed symptoms utilizing said symptom table, conclusion table, and symptom/conclusion table to recommend press operation settings including at least one tension level setting.

21. A real time, intelligent printing press monitoring system as recited in claim 11 wherein said retrieved historical data related to said press on which said paper is being run includes data gathered from the operation of said specific press.

22. A real time, intelligent printing press monitoring system as recited in claim 21 wherein said retrieved historical data related to said press on which said paper is being run includes data gathered from the operation of at least one other press of a type similar to the type of press on which said paper is being run.

23. A real time, intelligent printing press monitoring system as recited in claim 11 wherein said retrieved historical data related to said paper roll being run includes data gathered from a previously run paper roll received from the same supplier as the supplier of the paper roll being run.

24. A real time, intelligent printing press monitoring system as recited in claim 11 wherein said retrieved historical data related to said paper roll being run includes data gathered from a previously run paper roll received from the same supplier as the supplier of the paper roll being run and of the same grade as the grade of the paper roll being run.

25. A method of monitoring the operations of a printing press and a paper roll being run on the press in real time comprising:

monitoring a plurality of characteristics of the press and the paper being run on the press to provide real time sensor data;

storing at least a portion of said sensor data to collect said data as sensed symptoms of said system;

storing a symptom table identifying a plurality of symptoms, a conclusion table identifying a plurality of defects and a symptom/conclusion table relating the defects in said conclusion table to the symptoms in said symptom table; and

analyzing said sensed symptoms in real time as said data is collected utilizing said symptom table, conclusion table and said symptom/conclusion table.

26. A method of monitoring the operations of a printing press and analyzing the data therefrom in real time as recited in claim 25 including the steps of storing historical data relating to previously run paper rolls and past press operations;

retrieving stored historical data related to the paper roll being run and stored historical data related to the press on which said paper roll is being run, said retrieved data representing historical data symptoms; and

wherein said analyzing step includes analyzing said sensed symptoms with said historical data symptoms utilizing said symptom table, said conclusion table and said symptom/conclusion table during the operation of said press.

27. A method of monitoring the operations of a printing press and a roll of paper run on said press, comprising:

receiving input data identifying the press and a roll of paper to be run on the press, at least a portion of said input data representing symptoms;

storing historical data representing previously run paper rolls and past press operations, at least a portion of said historical data representing symptoms;

storing information in a symptom table identifying a plurality of symptoms, information in a conclusion table identifying a plurality of press operation settings including tension settings and information in a symptom/conclusion table relating each press operation setting to at least one symptom in said symptom table; and

analyzing said input data representing symptoms with said historical data symptoms to determine preferred press operation settings.

28. A method of monitoring the operations of a printing press as recited in claim 27 wherein said plurality of press operation settings includes a temperature level setting for ink used in said press.

29. A method of monitoring the operations of a printing press as recited in claim 27 wherein said plurality of press operation settings includes a ratio setting of ink to ink solvents used in said press.

30. A method of monitoring the operations of a printing press as recited in claim 27 wherein said analyzing step includes assigning a confidence value to said press operation settings based on information stored in said symptom/conclusion table and sorting said conclusions according to the assigned confidence values.

31. A method of monitoring the operations of a printing press as recited in claim 30 including displaying the press operation setting having the highest confidence value as said preferred press operation setting and displaying a plurality of symptoms upon which said analysis is based.

33. A method of monitoring the operations of a printing press as recited in claim 30 including storing a plurality of said real time data;

and displaying said data to illustrate a history of said press operation.

32. A method of monitoring the operations of a printing press on which rolls of paper are run, comprising:

receiving input data identifying the press and roll of paper to be run on the press, at least a portion of said input data representing symptoms;

storing historical data representing previously run paper rolls and past press operations, at least a portion of said historical data representing symptoms;

storing information in a symptom table identifying a plurality of symptoms, information in a conclusion table identifying a plurality of press operation settings including tension settings and information in a symptom/conclusion table relating each press operation setting to at least one symptom in said symptom table;

analyzing said input data representing symptoms with said historical data symptoms to determine preferred press operation settings;

monitoring in real time a plurality of operations of said press having determined press operation settings; and

displaying said monitored press operations in real time relative to said recommended press settings.

34. A method of monitoring operations of a press printing on a roll of paper comprising:

monitoring in real time a plurality of operations of said press to provide real time input data, said input data representing symptoms;

displaying at least a portion of said input data in real time;

determining the occurrence of an event representing a likelihood of a defect in said paper printing operations;

storing information in a symptom table identifying a plurality of symptoms, information in a conclusion table identifying each type of a plurality of defects and information in a symptom/conclusion table relating each defect in said conclusion table to at least one symptom in said symptom table; and

analyzing said input data representing symptoms in response to a determination of an occurrence of an event representing the likelihood of a defect utilizing said symptom table, said conclusion table and said symptom/conclusion table, said analysis including;

assigning a confidence value to each of a plurality of said conclusion types in said conclusion table based upon information stored in said symptom/conclusion table; and

sorting said conclusion types according to said assigned confidence values.

35. A method of monitoring the operations of a printing press as recited in claim 34 including the step of displaying information identifying the defect type having the highest confidence value.

36. A method of monitoring the operations of a printing press as recited in claim 35 including the step of displaying a plurality of the symptoms upon which said analysis is based.

37. An intelligent printing press monitoring system for analyzing data representing the operations of said press and a roll of paper being run on said press, comprising:

means for receiving input data identifying the press and roll of paper to be run on the press, at least a portion of said input data representing symptoms;

means for storing historical data representing previously run paper rolls and past press operations, at least a portion of said historical data representing symptoms;

means for storing information in a symptom table identifying a plurality of symptoms, information in a defect table identifying a plurality of press operation settings including tension settings and information in a symptom/conclusion table relating each press operation setting to at least one symptom in said symptom table; and

means for analyzing said input data symptoms with said historical data symptoms to determine preferred press operation settings.

38. An intelligent printing press monitoring system as recited in claim 37 wherein said analyzing means includes:

means for assigning a confidence value to said press operation settings based on information stored in said symptom/conclusion table; and

means for sorting said conclusions according to the assigned confidence values.

39. An intelligent printing press monitoring system as recited in claim 37 including means for displaying the press operation setting having the highest confidence value as said preferred press operation setting and displaying a plurality of the symptoms upon which said analysis is based.

40. An intelligent printing press monitoring system for analyzing data representing the operations of said press and a roll of paper being run on said press, comprising:

means for receiving input data identifying the press and roll of paper to be run on the press, at least a portion of said input data representing symptoms;

means for storing historical data representing previously run paper rolls and past press operations, at least a portion of said historical data representing symptoms;

means for storing information in a symptom table identifying a plurality of symptoms, information in a conclusion table identifying a plurality of press operation settings including tension settings and information in a symptom/conclusion table relating each press operation setting to at least one symptom in said symptom table; and

means for analyzing said input data representing symptoms with said historical data symptoms to determine preferred press operation settings;

monitoring in real time a plurality of operations of said press having determined press operation settings; and

displaying said monitored press operations in real time relative to said recommended press settings.

41. An intelligent printing press monitoring system for analyzing data representing the operations of said press and a roll of paper being run on said press, comprising:

means for monitoring in real time a plurality of said operations of said press to provide real time input data, said input data representing symptoms;

means for displaying at least a portion of said input data in real time;

means for determining the occurrence of an event representing a likelihood of a defect in said paper printing operations;

means for storing information in a symptom table identifying a plurality of symptoms, information in a conclusion table identifying each type of a plurality of defects and information in a symptom/conclusion table relating each defect in said conclusion table to at least one symptom in said symptom table; and

means for analyzing said input data representing symptoms in response to a determination of an occurrence of an event representing the likelihood of a defect utilizing said symptom table, said conclusion table and said symptom/conclusion table, said analyzing means including;

means for assigning a confidence value to said defect type based on information stored in said symptom/conclusion table; and

means for sorting said defect types according to said assigned confidence values.

42. An intelligent printing press monitoring system as recited in claim 41 including means for displaying information identifying the defect type having the highest confidence value.

43. An intelligent printing press monitoring system as recited in claim 42 wherein said display means displays a plurality of the symptoms upon which said analysis is based.

44. An intelligent printing press monitoring system for analyzing data representing the operations of a press and a roll of paper being run on said press comprising:

means for inputting data identifying said press and characteristics of said press;

means for storing input data;

means for storing historical data representing previously run paper rolls and past press operations;

a start up software module operable upon a start of the operation of said press and responsive to said stored input data and historical data for selecting from a plurality of press tension settings at least one preferred tension setting;

means for monitoring a plurality of press operations including characteristics of the paper being run on said press to detect defects of various types; and

an inference engine software module for analyzing said monitored press operations to identify a possible type of a defect as the defect is detected.