Analysis system

• US 7,774,166 B2
• Filed: 11/02/2007
• Issued: 08/10/2010
• Est. Priority Date: 01/18/2002
• Status: Expired due to Term

• Current Assignee: S.P.M. Instrument AB
• Original Assignee: S.P.M. Instrument AB
• Inventors: Lindberg, Stefan, Lindberg, Jarl-Ove, Kummelstam, Jim, Hedlund, Hakan
• Primary Examiner(s): Wachsman; Hal D
• Assistant Examiner(s): Suarez; Felix E
• Application Number:
  US11/934,244
• Publication Number:
  US 20080059117A1
• Time in Patent Office: 1,012 Days
• Field of Search: 702/113, 702/117, 702/122, 702/127, 702182-187, 318/609, 324/345, 713/1, 365/237.2
• US Class Current: 702/182
• CPC Class Codes: G01H 1/003 of rotating machines G01H1/10 takes precedence
• CPC Class Codes: G01H 1/14 Frequency
• CPC Class Codes: G01H 1/16 Amplitude
• CPC Class Codes: G01M 1/28 with special adaptations for determining imbalance of the body in situ, e.g. of vehicle wheels
• CPC Class Codes: G01M 13/028 Acoustic or vibration analysis
• CPC Class Codes: G01M 13/045 Acoustic or vibration analysis
• CPC Class Codes: G01M 15/04 Testing internal-combustion engines
• CPC Class Codes: G01M 15/048 by monitoring temperature
• CPC Class Codes: G01M 15/12 by monitoring vibrations
• CPC Class Codes: G05B 23/0221 Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
• CPC Class Codes: G07C 3/00 Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
• CPC Class Codes: G07C 3/08 Registering or indicating the production of the machine either with or without registering working or idle time
• CPC Class Codes: G07C 3/10 using counting means
• CPC Class Codes: G07C 9/27 with central registration
• CPC Class Codes: G07C 9/33 by means of a password

Abstract

An apparatus for analysing the condition of a machine having a rotating shaft, comprising:

• • at least one input for receiving measurement data from a sensor for surveying a measuring point of the machine; said measurement data being dependent on rotation of said shaft;
  • data processing means for processing condition data dependent on said measurement data; said data processing means comprising means for performing a plurality of condition monitoring functions (F1, F2, Fn), wherein
  • said data processing means includes a Field Programmable Gate Array circuit coupled to said at least one input.

Claims

1. An apparatus for analyzing the condition of a machine having a rotating shaft, comprising:

a plurality of inputs for receiving measurement data from sensors for surveying measuring points of the machine, said measurement data being dependent on rotation of said shaft;

data processing means for processing condition data dependent on said measurement data, said data processing means comprising;

means for performing a plurality of condition monitoring functions (F1, F2, Fn);

a first data processing device (50A) and a second data processing device (50B), said second data processing device being a Field Programmable Gate Array circuit coupled to said plurality of inputs; and

at least one memory (60) having a plurality of memory segments (70, 90, 110, 120) for storing program code, said program code including first program code means (80), stored on at least one (70) of said memory segments, for execution by said first data processing device (50A);

wherein said first data processing device (50A) operates to execute said first program code means (80);

wherein said first program code means, when executed on said first data processing device (50A) causes the first data processing device to control the operation of the Field Programmable Gate Array circuit (50B) so as to determine which of said plurality of condition monitoring functions (F1, F2, Fn) are to be executed by the Field Programmable Gate Array circuit 50B;

wherein said at least one memory (60) further comprises;

second program code means (100), stored on one (90) of said memory segments, which when run on said Field Programmable Gate Array circuit (50B) causes the condition analysis apparatus to execute a first condition monitoring function (F1, F2, Fn); and

third program code means, stored on one (120) of said memory segments, which when run on said Field Programmable Gate Array circuit (50B) causes the condition analysis apparatus to execute a second condition monitoring function (F1, F2, Fn); and

wherein said apparatus is adapted to allow parallel processing of said second program code means and said third program code means on said Field Programmable Gate Array circuit (50B) so as to achieve simultaneous execution of at least two condition monitoring functions.

2. The apparatus according to claim 1, having:

a portable apparatus body having a body volume of less than 1006 250 mm³, and a display provided on, at or in, said apparatus body, said display having a display area of at least 4125 mm²;

wherein said apparatus body is shaped and adapted to enable a one-hand grip; and

wherein said apparatus body includes user interaction means adapted to enable user interaction by means of said one hand.

3. The apparatus according to claim 1, wherein:

said at least one input includes an input adapted to receive shock pulse measurement data, said adapted input comprising means for treatment of said shock pulse measurement data and delivery of said treated data to the Field Programmable Gate Array circuit.

4. The apparatus according to claim 1, wherein said apparatus has comprises:

an apparatus body; and

a display provided on, at or in said apparatus body;

wherein said apparatus body is portable, and is shaped and adapted to enable a one-hand grip, said apparatus body having a body volume of less than 1,006,250 mm³, and wherein said display has a display area of at least 4,125 mm²; and

wherein at least one of said plurality of condition monitoring functions (F1, F2, Fn) includes;

functionality for causing the apparatus to retrieve a plurality of stored condition data values from a memory; and

functionality for causing the apparatus to present, on said display, a curve indicating a temporal progression of the condition of the machine so as to illustrate a machine condition trend;

wherein said display is a touch sensitive display so as to allow a user to interact by touching the screen at a part of the displayed curve, said at least one condition monitoring function (F1, F2, Fn) including functionality for causing the apparatus to present, on said display, information associated with the touched part of the curve in response to such user interaction.

5. The apparatus according to claim 4, wherein said information associated with the touched part of the curve includes time and date information associated with that part of the curve.

6. The apparatus according to claim 4, further comprising:

a plurality of memory segments for storing program code; and

program code means, stored on at least one of said memory segments, which when run on said Field Programmable Gate Array circuit (50B) causes the condition analysis apparatus to execute said functionality for causing the apparatus to retrieve a plurality of stored condition data values from a memory;

program code means, stored on at least one of said memory segments, which when run on said Field Programmable Gate Array circuit (50B) causes the condition analysis apparatus to execute said functionality for causing the apparatus to present, on said display, a curve indicating a temporal progression of the condition of the machine so as to illustrate a machine condition trend; and

program code means, stored on at least one of said memory segments, which when run on said Field Programmable Gate Array circuit (50B) causes the condition analysis apparatus to execute said functionality for causing the apparatus to present, on said display, information associated with the touched part of the curve in response to said user interaction.

7. The apparatus according to claim 1, further comprising:

an apparatus body; and

a display provided on, at or in, said apparatus body;

wherein said apparatus body is portable, and is shaped and adapted to enable a one-hand grip, said apparatus body having a body volume of less than 1,006,250 mm³, and wherein said display has a display area of at least 4,125 mm²;

wherein the portable apparatus body also comprises a holder for an elongated pointing device; and

wherein said display is a touch sensitive display so as to allow user input by means of said elongated pointing device.

8. The apparatus according to claim 4, wherein:

said apparatus body has a body volume of less than 800,000 mm³.

9. The apparatus according to claim 4, wherein said apparatus body is portable, and is shaped and adapted to enable a one-hand grip, said apparatus body including user interaction means adapted to enable user interaction by means of said one hand.

10. The apparatus according to claim 4, wherein said apparatus body houses readable and writeable memory means having a storage capacity exceeding 8 megabits.

11. The apparatus according to claim 1, wherein said first condition monitoring function (F1, F2, Fn) is a function for imbalance detection, and

wherein said second condition monitoring function (F1, F2, Fn) is a function for balancing so that the imbalance detection function and the balancing function are executed in parallel.

12. The apparatus according to claim 1, wherein said first condition monitoring function (F1, F2, Fn) is a function for misalignment detection, and

wherein said second condition monitoring function (F1, F2, Fn) is a function for alignment so that the misalignment detection function and the alignment function are executed in parallel.

13. The apparatus according to claim 1, further comprising:

a wrist strap;

an apparatus body; and

a display provided on, at or in, said apparatus body;

wherein said apparatus body is portable and shaped and adapted to enable a one-hand grip, said apparatus body being provided with fasteners for said wrist strap, said apparatus body having a body volume of less than 1,006,250 mm³, and said display having a display area of at least 4,125 mm²;

said apparatus body including user interaction means adapted to enable user interaction by means of said one hand.

14. The apparatus according to claim 1, wherein at least one of said condition monitoring functions (F1, F2, Fn) generates said condition data in response to measurement data indicative of vibration.

15. The apparatus according to claim 1, wherein said apparatus has an apparatus body, and a display provided on, at or in said apparatus body;

wherein said apparatus body is portable and shaped and adapted to enable a one-hand grip, said apparatus body including user interaction means adapted to enable user interaction by means of said one hand;

said apparatus body having a body volume of less than 1,006,250 mm³, and wherein said display has a display area of at least 4,125 mm²; and

wherein said display is a touch sensitive display having touch sensors so as to allow a user to interact with the apparatus by touching the screen; and

wherein said Field Programmable Gate Array circuit is coupled to said touch sensors for associating information displayed at a certain position of the display area with user activation of the sensor at said certain position;

wherein the apparatus further comprises;

a memory having a plurality of memory segments for storing program code; and

program code means, stored on at least one of said memory segments, which when run on said Field Programmable Gate Array circuit (50B) causes the condition analysis apparatus to execute a condition monitoring function;

wherein said condition monitoring function (F1, F2, Fn) includes functionality for causing the apparatus to present information, on said display, in response to said user interaction.

16. The apparatus according to claim 1, wherein at least one of said condition monitoring functions (F1, F2, Fn), when running, generates said condition data in response to measurement data indicative of temperature.

17. The apparatus according to claim 16, wherein said at least one input includes an input adapted to receive measurement data indicative of temperature, said adapted input comprising means for treatment of said temperature measurement data and delivery of said treated data to said Field Programmable Gate Array circuit.

18. The apparatus according to claim 1, wherein said at least one input includes an input adapted to receive an analog measurement signal indicative of temperature, said apparatus further comprising an A/D converter (44B) which is coupled to receive said analog temperature measurement signal;

and

wherein said Field Programmable Gate Array circuit is coupled to receive digital temperature data from said A/D-converter.

19. The apparatus according to claim 1, wherein said at least one of said plurality of inputs includes at least one analog-to-digital converter coupled so as to enable reception of an analog signal and delivery of a corresponding digital signal to said Field Programmable Gate Array circuit.

20. The apparatus according to claim 1, wherein said at least one input includes an input (42D) adapted to receive binary tachometering measurement signals.

21. The apparatus according to claim 1, wherein said plurality of inputs comprises at least two inputs selected from the group consisting of shock pulse measurement signal input (42A), temperature signal input (42B), vibration measurement signal input (42C), and tachometering measurement signal input (42D).

22. The apparatus according to claim 1, wherein said plurality of condition monitoring functions (F1, F2, Fn) includes at least two functions selected from the group consisting of:

vibration analysis, temperature analysis, shock pulse measuring, spectrum analysis of shock pulse measurement data, Fast Fourier Transformation of vibration measurement data, graphical presentation of condition data on a user interface, storage of condition data in a writeable information carrier on said machine, storage of condition data in a writeable information carrier in said apparatus, tachometering, imbalance detection, misalignment detection.

23. The apparatus according to claim 1, further comprising:

a user interface (102, 103, 106, 182) adapted to enable user interaction;

wherein said first data processing device (50A) operates to execute said first program code means (80) in response to user input via said user interface (102).