Machine monitoring system and apparatus

• US 4,399,513 A
• Filed: 10/08/1980
• Issued: 08/16/1983
• Est. Priority Date: 10/08/1980
• Status: Expired due to Term

• Current Assignee: IRD Mechanalysis, Inc.
• Original Assignee: IRD Mechanalysis, Inc.
• Inventors: Taylor, James K., Sullivan, John D., Moore, Larry G.
• Primary Examiner(s): Wise, Edward J.
• Application Number:
  US06/194,997
• Time in Patent Office: 1,042 Days
• Field of Search: 364/551, 364/550, 364/431.04, 364/433, 364/508, 364/424, 364/518, 340/753, 340/27 R, 73/117.3, 455/159
• US Class Current: 702/182
• CPC Class Codes: G01D 7/08 using a common indicating element for two or more variables
• CPC Class Codes: G01R 13/405 using a plurality of active, i.e. light emitting, e.g. electro-luminescent elements, i.e. bar graphs
• CPC Class Codes: G01R 13/406 representing measured value by a dot or a single line G01R13/408 takes precedence
• CPC Class Codes: G01R 31/00 Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere measuring superconductive properties G01R33/1238; testing or measuring semiconductors or solid state devices during manufacture H01L22/00; testing line transmission systems H04B3/46

Abstract

System and apparatus for monitoring vibrational and other detected aspects of a machine. Transducer outputs are scanned through the use of a microprocessor, the memory components of which retain pre-determined set point information. The channel representing a given transducer output is displayed visually on the apparatus for 5 second intervals in combination with a linear form of disply showing monitored transducer values as well as set point values. In the event of detected threshhold level warnings or the like, additional visual indicators representing both system and channel status conditions are energized. The system includes a small, hand-held programmer by which any of a broad variety of functions may be readily entered into the memory of the processor through the simple manipulation of a single potentiometer. During the programming procedure, the values being inserted are displayed on the noted bar chart. Preferably, the chart is present as a linear array of 50 LEDs.

Claims

1. In a system for monitoring the performance of operational devices through the use of transducers associated therewith, each said transducer having an output corresponding with a select performance parameter, the improvement comprising:

monitoring apparatus including;

a linear array of indicators, each discretely energizable in response to an input signal;

scale means including linearly disposed graduation indicia aligned generally in parallel with and adjacent to said linear array of indicators for providing a scale level correspondence with each said indicator;

signal testing means responsive to said transducer output for deriving a data signal;

processor means responsive to said data signal and including memory means for retaining a limit datum corresponding with a threshold level selected in association with said select performance parameter for deriving a control output;

decoder means responsive to said control output for deriving a first said input signal for energizing a first said indicator adjacent a said scale means indicia having a graduation value corresponding with a said data signal deriving from said transducer output, and simultaneously deriving a second said input signal for energizing a second said indicator adjacent a said scale means indicia having a graduation value corresponding with a said limit datum;

a hand manipular programming component connected in signal transfer relationship with said processor means, actuable to derive output conditions corresponding with a selected said limit datum; and

said processor means is responsive to said hand manipular programming component output conditions to effect a said decoder means energization of a said indicator in correspondence therewith.

2. The system of claim 1 in which said processor means is configured for deriving a said control output corresponding with a said limit datum on an intermittent basis to effect a flashing of a said second indicator.

3. The system of claim 1 in which said scale means graduation indicia are regularly spaced and arranged to represent an aliquot division of a range of values extending between first and second levels.

4. The system of claim 3 in which said graduation indicia are arranged to represent a percentage scale having a range of 0 to 100.

5. The improved apparatus of claim 1 further including:

visible limit indicator means energizable for providing a visible indication of a condition wherein a said threshhold level is at least equalled;

a manually actuable acknowledge switch; and

said processor means is configured for effecting the intermittent energization of said visible limit indicator means by said decoder means upon the development of a said equality and is responsive to a said actuation of said acknowledge switch and the continued presence of said equality to effect a steady state energization of said visible limit indicator means.

6. The system of claim 1 in which:

said programmer further comprises enter switch means connected in signal transfer relationship with said processor means and actuable to assume an enter condition; and

said processor means is responsive to a said programming component output condition in the presence of said enter condition for submitting a corresponding said limit datum to said memory means.

7. The system of claim 6 in which:

said programmer further comprises hand manipular function switch means connected in signal transfer relationship with said processor means and having a plurality of selectable positions, each defining a unique coded function output condition; and

said processor means is responsive to said coded function output condition for submitting said limit datum to said memory means at a predetermined situs corresponding with said function in the presence of said enter condition.

8. The system of claim 7 in which:

said hand manipular function switch means is configured having a delay categorized said position which corresponds with a said function representing a time delay within a predetermined range thereof; and

said processor means is responsive to said coded function output condition corresponding with said delay categorized position and to a said hand manipular programming component output condition to effect a said decoder means energization of a said indicator in correspondence with the instantaneous position of said programming component.

9. The system of claim 8 wherein said processor means is responsive to said coded function output condition corresponding with said delay categorized position and to said hand manipular programming component output condition in the presence of said enter condition for submitting a corresponding datum signal to said memory means.

10. The system of claim 7 further including

suppressor means actuable to effect the select suppression of the level of a said transducer output;

start-up detector means having an output condition in response to the commencement of energization of a said operational device;

a start-up time categorized position of said hand manipular switch means corresponding with a said function representing a time interval within a predetermined range thereof; and

said processor means is responsive to said coded function output condition corresponding with said start-up time categorized position and to a said hand manipular programming component output condition to effect a said decoder means energization of a said indicator in correspondence with the instantaneous position of said programming component.

11. The system of claim 10 wherein said processor means is responsive to said coded function output condition corresponding with said start-up time categorized position and to said hand manipular programming component output condition in the presence of said enter condition for submitting a corresponding datum signal to said memory means.

12. The system of claim 11 further including visible start-up indicator means energizable for providing a visible indication of a condition wherein said suppressor means is actuated;

and

said processor means is configured for effecting said start-up indicator means energization for a time interval represented by said hand manipular programming component output condition.

13. The system of claim 6 in which:

said monitoring apparatus includes externally disposed connector means for effecting a signal transfer relationship with said processor means and said signal treating means;

said programmer is portable and includes means defining a signal coupling device for removable insertion in signal transfer relationship with said externally disposed connector means; and

said hand manipular component is coupled with said processor means and said signal treating means through said means defining a signal coupling device.

14. The system of claim 13 in which

said signal treating means includes an analog to digital converter responsive to said transducer output for deriving said data signal in digital form having a value corresponding with the level of said transducer output;

and

said portable programmer hand manipular programming component is provided as a potentiometer actuable to effect the assertion of select signal levels from said means defining a signal coupling device at said analog to digital converter.

15. The system of claim 14 wherein

said signal treating means is operatively associated with a source of electrical power;

and

said potentiometer is connectable with said source through said means defining a signal coupling device.

16. In a system for monitoring the operation of devices through the use of transducers associated therewith, each said transducer having an output corresponding with a select parameter, the improvement comprising:

monitoring apparatus comprising;

an array of indicators, each discretely energizable;

scale means including graduation indicia aligned generally adjacent to said array of indicators for providing a scale level correspondence with each said indicator;

input means for providing a plurality of channels, each channel uniquely responsive to receive a select said transducer output;

signal treating means coupled with said input means channels and responsive to said transducer outputs for deriving data signals;

channel identification means responsive to a control input for providing a visual indication of a said channel;

hold switch means manually acutable to provide a hold signal;

first limit indicator means energizable for providing a perceptible indication of a condition warranting operator cognizance;

processor means responsive to discrete ones of said data signals for a predetermined dwell interval in a continually recurring predetermined scanning sequence and including memory means for retaining limit data corresponding with threshold levels selected for each said channel in association with a corresponding said select parameter, for retaining control data, for carrying out comparisons of each said data signal with corresponding said limit data, and for deriving control outputs, responsive to a said hold signal occurring during a said dwell interval wherein a said visual indication is provided for a given said channel for effecting continuing response to said data signals corresponding with said given channel; and

decoder means responsive to said control outputs for energizing a first said indicator adjacent a said scale means indicia having a graduation value corresponding with a said data signal deriving from a predetermined said input means channel and, simultaneously, energizing a second said indicator adjacent a scale means indicia having a graduation value corresponding with said limit data for said predetermined channel, and, simultaneously, deriving said control input to effect said provision of visual identification of said predetermined channel for effecting the energization of said first limit indicator means in the presence of a said control output representing a condition wherein a said threshold level for one of a predetermined member of said channels is at least equalled.

17. The system of claim 16 in which said processor means is configured for deriving a said control output corresponding with said limit data on an intermittent basis to effect a flashing of said second indicator.

18. The system of claim 16 in which said scale means graduation indicia are regularly spaced and arranged to represent an aliquot division of a range of values extending between first and second levels.

19. The system of claim 18 in which said graduation indicia are arranged to represent a percentage scale having a numerical range of 1 to 100.

20. The system of claim 16 in which:

said first visible limit indicator means is energizable for providing a visible indication of a condition wherein a said threshold level for one of a predetermined number of said channels is at least equalled;

said monitoring apparatus further includes second visible limit indicator means energizable for providing a visible indication of a condition wherein a threshold level for a specific said channel identified at said channel identification means is at least equalled;

a manually actuable acknowledge switch; and

said processor means is configured for effecting the intermittent energization of said first visible limit indicator means through said decoder means upon the development of any said equality, for effecting the energization of said second visible limit indicator means through said decoder means for said predetermined dwell interval when the identified said channel at which said threshold level is at least equalled is identified at said channel identification means, said processor means being responsive to a said actuation of said acknowledge switch in the continued presence of said equality at said identified channel and simultaneous said identification of said identified channel to effect a steady state energization of said first visible limit indicator means.

21. The system of claim 20 in which said processor means is configured for effecting the intermittent derivation of said control input by said decoder means when said channel identification means provides a visual indication of a said identified channel which identifies a said equality developed initially in a series of at least two said equalities.

22. The system of claim 21 wherein said processor means is configured for effecting said intermittent derivation of said control input at an intermitting rate selected as greater than the said intermittent energization of said first visible limit indicator means.

23. The system of claim 20 wherein said processor means is configured for effecting an intermittent said energization of said second visible limit indicator means.

24. The system of claim 16 in which:

said monitoring apparatus includes externally disposed connector means for effecting a signal transfer relationship with said processor means and said signal treating means;

said system further including

a portable programmer comprising;

means defining a signal coupling device for removable insertion in signal transfer relationship with said externally disposed connector means,

a hand manipular programming component connected with said means defining a signal coupling device and movable to derive corresponding output conditions; and

said processor means is responsive to said hand manipular programming component output conditions to effect a said decoder means energization of a said indicator in correspondence therewith.

25. The system of claim 24 in which

said portable programmer further comprises enter switch means connected with said means defining a signal coupling device and actuable to assume an enter condition;

and

said processor means is responsive to a said programming component output condition in the presence of a said enter condition for submitting corresponding said data to said memory means in correspondence with said channel identification means visual channel indication.

26. The system of claim 25 in which

said portable programmer further comprises hand manipular function switch means connected with said means defining a signal coupling device and having a plurality of selectable positions, each defining a unique coded output function;

and

said processor means is responsive to said coded function output condition for submitting corresponding said data to said memory means at a predetermined situs corresponding with said function in the presence of said enter condition.

27. The system of claim 26 in which:

said hand manipular function switch means is configured having a delay categorized said position which corresponds with a said function representing a time delay within a predetermined range thereof for delaying the said actuation of said limit response means; and

said processor means is responsive to said coded function output condition corresponding with said delay categorized position and to a said hand manipular programming component output condition to effect a said decoder means energization of a said indicator in correspondence with the instantaneous position of said programming component.

28. The system of claim 27 wherein said processor means is responsive to said coded function output condition corresponding with said delay categorized position and to said hand manipular programming component output condition in the presence of said enter condition for submitting corresponding control data to said memory means.

29. The system of claim 26 further including

suppressor means actuable to effect the select suppression of the level of a said transducer output;

start-up detector means having an output condition in response to the commencement of energization of a said operation of a said device;

a start-up time categorized position of said hand manipular switch means corresponding with a said function representing a time interval within a predetermined maximum range thereof; and

said processor means is responsive to said coded function output condition corresponding with said start-up time categorized position and to a said hand manipular programming component output condition to effect a said decoder means energization of a said indicator in correspondence with the instantaneous position of said programming component.

30. The system of claim 29 wherein said processor means is responsive to said coded function output condition corresponding with said start-up time categorized position and to said hand manipular programming component output condition in the presence of said enter condition for submitting corresponding said control data to said memory means.

31. The system of claim 30 further including visible start-up indicator means energizable for providing a visible indication of a condition wherein said suppressor means is actuated;

and

said processor means is configured for effecting said start-up indicator means energization for a time interval represented by said hand manipular programming component output condition.

32. The system of claim 26 in which

said signal treating means includes an analog to digital converter responsive to said transducer output for deriving each said data signal in digital form having a value corresponding with the level of a corresponding said transducer output;

and

said portable programmer hand manipular programming component is provided as a potentiomenter actuable to effect the assertion of select signal levels from said means defining a signal coupling device at said analog to digital converter.

33. The system of claim 32 wherein

said signal treating means is operatively associated with a source of electrical power;

and said potentiometer is connectable with said source through said means defining a signal coupling device.

34. In a system for monitoring the operation of devices through the use of transducers associated therewith, each said transducer having an output corresponding with a select parameter, the improvement comprising

monitoring apparatus comprising

an array of discretely energizable indicators;

scale means including graduation indicia aligned adjacent to said array of indicators for providing a scale level correspondence with each said indicator;

input means for providing a plurality of channels, each channel uniquely responsive to receive a select said transducer output;

signal treating means including an analog to digital converter coupled with said input means channels and responsive to said transducer output for deriving digitalized data signals;

channel identification means responsive to a control input for providing a visual indication of said channel;

processor means responsive to discrete ones of said data signals in a predetermined scanning sequence and including memory means for retaining limit data corresponding with threshhold levels selected for each said channel in association with a corresponding said select parameter, for retaining control data, for carrying out comparisons of each said data signal with corresponding said limit data, and for deriving contol output;

decoder means responsive to said control outputs for energizing a first said indicator adjacent said scale means indicia having a graduation value corresponding with a said data signal deriving from a predetermined said input means channel and, simultaneously, energizing a second said indicator adjacent a scale means indicia having a graduation value corresponding with said limit data for said predetermined channel and, simultaneously, deriving said control input to effect said provision of visual identification of said predetermined channel; and

connecting means for effecting a signal transfer relationship with said processor means and said signal treating means; and

a portable programmer comprising

means defining a signaling coupling device for removable insertion in signal transfer relationship with said connector means;

a hand manipular programming component connected with said means defining a signal coupling device and movable between limiting positions to derive corresponding output conditions for presentation through said signal coupling device to said signal treating means;

enter switch means connected with said means defining a signal coupling device and actuable to assume an enter condition;

hand manipular function switch means connected with said means defining a signal coupling device and having a plurality of selectable positions, each defining a unique coded output function; and

said processor means is responsive to said hand manipular programming component output condition to effect a said decoder means energization of a said indicator in correspondence therewith, is responsive to said coded function output condition for submitting corresponding said data to said memory means at a predetermined situs corresponding with said function in the presence of said enter condition and is responsive to a said programming component output condition in the presence of a said enter condition for submitting corresponding said data to said memory means in correspondence with said channel identification means visual channel indication.