Analysis system for analyzing the condition of a machine

• US 7,200,519 B2
• Filed: 01/20/2003
• Issued: 04/03/2007
• 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, Jarl-Ove, Kummelstam, Jim, Hedlund, Håkan, Lindberg, Stefan
• Primary Examiner(s): Bui; Bryan
• Assistant Examiner(s): LE, JOHN H
• Application Number:
  US10/501,544
• Publication Number:
  US 20050209811A1
• Time in Patent Office: 1,534 Days
• Field of Search: 702/24, 702/34, 702/56, 702/91, 702/122, 702/127, 702/138, 702/182, 702/184, 702/145, 702/187, 731/16, 736/55, 736/54, 736/44, 736/58, 736/59, 736/60, 735/93, 324/115, 324/173, 700/279, 700/79, 701/99, 710/260, 358/473, 345/419
• 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

A system for analyzing the condition of a machine having a rotating shaft and a machine body with a measuring point includes a client part communicating with a supplier part computer via a communications network. The client part includes a sensor attachable at the measuring point for generating measurement data dependent on shaft rotation, an analysis apparatus for analyzing the condition of the machine based on the measurement data, the analysis apparatus having at least one input receiving the measurement data, a data processor for processing condition data dependent on the measurement data, the data processor including an element for performing condition monitoring functions and a Logger registering their use, a communication port coupled to the data processor and connectable to the communications network to communicate with the supplier part computer. The analysis apparatus can deliver registered use information to the supplier part computer via the communication port.

Claims

1. A system for analyzing a condition of a machine having a rotating shaft and a machine body with a measuring point, the system comprising a client part connectable to a communications network for communication with a supplier part computer, said client part comprising:

a sensor attachable on or at said measuring point for generating measurement data dependent on rotation of said shaft;

an analysis apparatus for analysing the condition of the machine on the basis of said measurement data, said analysis apparatus comprising;

at least one input for receiving said measurement data;

a 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;

a logger for registering use of at least one of said condition monitoring functions; and

a communication port coupled to said data processing means and connectable to said communications network for communication with said supplier part computer;

wherein said analysis apparatus is adapted to deliver information indicative of said registered use on said communication port for delivery to said supplier part computer.

2. The system according to claim 1, wherein

said logger is adapted to register use of a first condition monitoring function a first rate;

and

said logger is adapted to register use a second condition monitoring function at a second rate.

3. The system according to claim 2, wherein

said second rate is such that use registered at said second rate causes a higher cost per unit of usage than use registered at said first rate.

4. The system according to claim 2, wherein

said second rate is such that use registered at said second rate causes a lower cost per unit of usage than use registered at said first rate.

5. The system according to claim 2, further comprising

means for causing a user interface to indicate when use is registered at said first rate.

6. The system according to claim 2, further comprising

means for causing a user interface to indicate when use is registered at said second rate.

7. The system according to claim 2, wherein

said logger is adapted to register use of at least two of said condition monitoring functions;

and

wherein

said logger is adapted to register use of a first condition monitoring function a third rate; and

said logger is adapted to register use of a second condition monitoring function at a fourth rate, said fourth rate deviating from said third rate.

8. The system according to claim 7, wherein

said fourth rate is such that use registered at said fourth rate causes a higher cost per unit of usage than use registered at said third rate.

9. The system according to claim 7, wherein

said fourth rate is such that use registered at said fourth rate causes a lower cost per unit of usage than use registered at said third rate.

10. The system according to claim 1, wherein:

said registered use is a parameter indicative of a number of executions of at least one of said condition monitoring functions.

11. The system according to claim 1, wherein:

said registered use is a parameter indicative of an extent of time.

12. The system according to claim 1, wherein

said plurality of condition monitoring functions includes at least one function 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.

13. The system according to claim 1, wherein

said plurality of condition monitoring functions includes a function for imbalance detection.

14. The system according to claim 1, wherein

said plurality of condition monitoring functions includes a function for balancing.

15. The system according to claim 1, wherein

said plurality of condition monitoring functions includes a function for misalignment detection.

16. The system according to claim 1, wherein

said plurality of condition monitoring functions includes a function for alignment.

17. The system of claim 1, wherein the information indicative of the registered use delivered by the analysis apparatus to the supplier part computer is a usage report.

18. The system of claim 17, wherein the analysis apparatus further comprises a timer, the analysis apparatus being constructed and arranged so that if the analysis apparatus does not deliver the usage report before an end of a period of time measured by the timer, the analysis apparatus will disable one or more of the condition monitoring functions.

19. The system of claim 17, wherein the supplier part computer is constructed and arranged to send a receipt to the analysis apparatus upon the supplier part receiving the usage report.

20. The system of claim 19, wherein the analysis apparatus is constructed and arranged to disable one or more of the condition monitoring functions if the analysis apparatus does not receive the receipt after sending the usage report to the supplier part computer.

21. The system of claim 19, wherein the analysis apparatus further comprises a user interface, the analysis apparatus being constructed and arranged to first provide a warning through the user interface when the analysis apparatus has not received the receipt from the supplier part computer within a first time period after sending the usage report, the analysis apparatus then disabling one or more of the condition monitoring functions if the analysis apparatus still has not received the receipt after a second time period.

22. The system of claim 1, wherein the client part is constructed and arranged to communicate with the supplier part computer through a separate computer, the analysis apparatus being constructed and arranged to communicate with the separate computer through the communication port, the separate computer being constructed and arranged to communicate with the supplier part computer through a communication network.

23. The system of claim 22, wherein the communication network is the internet.

24. The system of claim 22, wherein the communication network is a switched telephone network.

29. The system according to claim 1, wherein:

said registered use is a parameter indicative of a number of executions of at least one of said condition monitoring functions.

30. The system according to claim 1, wherein:

said registered use is a parameter indicative of an extent of time.

25. An system for analyzing a condition of a machine having a rotating shaft and a machine body with a measuring point, comprising:

a sensor attachable on or at said measuring point for generating measurement data 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;

a logger for registering a value indicative of an amount of use of at least one of said condition monitoring functions; and

a communication port coupled to said data processing means;

wherein said apparatus for analyzing is adapted to deliver information representing said registered value indicative of an amount of use by way of said communication port.

26. The apparatus according to claim 25, wherein

said logger is adapted to register use of a first condition monitoring function a first rate;

and

said logger is adapted to register use a second condition monitoring function at a second rate.

27. The apparatus according to claim 26, wherein

said second rate is such that use registered at said second rate causes a higher cost per unit of usage than use registered at said first rate.

28. The apparatus according to claim 26, wherein

said second rate is such that use registered at said second rate causes a lower cost per unit of usage than use registered at said first rate.

31. The apparatus according to claim 25, wherein

said plurality of condition monitoring functions 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.

32. The apparatus according to claim 25, wherein

said plurality of condition monitoring functions includes a function for imbalance detection.

33. The apparatus according to claim 25, wherein

said plurality of condition monitoring functions includes a function for balancing.

34. The apparatus according to claim 25, wherein

said plurality of condition monitoring functions includes a function for misalignment detection.

35. The apparatus according to claim 25, wherein

said plurality of condition monitoring functions includes a function for alignment.

36. A system for analyzing a condition of a machine having a rotating shaft and a machine body with a measuring point, the system comprising:

a supplier part computer; and

a client part constructed so as to be connectable to a communications network to allow communication with the supplier part computer, the client part comprising;

a sensor constructed and arranged so as to allow attachment on or at said measuring point, the sensor being constructed to generate measurement data based rotation of the shaft of the machine; and

an analysis apparatus comprising;

at least one input connected to receive the measurement data from the sensor;

a data processor constructed to receive as an input the measurement data, the data processor being constructed to generate condition data dependent on said measurement data, the data processor being constructed to generate the condition data based on a plurality of condition monitoring functions;

a logger constructed so as to store a value indicative of an amount of use of at least one of the condition monitoring functions; and

a communication port coupled to the data processor and constructed so as to be connectable to the communications network so as to allow communication with the supplier part computer;

wherein the analysis apparatus is constructed so as to transfer to the supplier part computer, by way of the communication port, information representing the value indicative of an amount of use of at least one of the condition monitoring functions.

37. The system according to claim 36, wherein the logger is constructed to adjust the stored value at a first rate to reflect use of a first of the condition monitoring functions, and to adjust the stored value at a different second rate to reflect use of a second of the condition monitoring functions.

38. The system according to claim 36, wherein the logger is constructed so that the stored value is indicative of a number of executions of at least one of the condition monitoring functions.

39. The system according to claim 36, wherein the logger is constructed so that the stored value is indicative of an extent of time for which at least one of the condition monitoring functions was executed.