Dynamic condition monitoring system employing a multi-core processor

• US 20080186194A1
• Filed: 09/29/2006
• Published: 08/07/2008
• Est. Priority Date: 09/29/2006
• Status: Abandoned Application

• Current Assignee: Rockwell Automation Technologies Incorporated (Rockwell Automation, Inc.)
• Original Assignee: Rockwell Automation Technologies Incorporated (Rockwell Automation, Inc.)
• Inventors: Bibelhausen, David J., Kaminski, Benjamin Martin
• Application Number:
  US11/540,243
• Publication Number:
  US 20080186194A1
• Time in Patent Office: Days
• US Class Current: 340/683
• CPC Class Codes: G05B 19/4065 Monitoring tool breakage, life or condition
• CPC Class Codes: G05B 2219/37435 Vibration of machine

Abstract

A dynamic condition monitoring system is disclosed for monitoring dynamic conditions such as vibration in a machine system. The monitoring system includes monitors coupled to sensors instrumenting the machine system. A multi-core processor in the monitors performs complex functions including managing exchange of data from the sensors and remote monitoring equipment, and analysis of the received signals, such as to derive vibration profiles via fast Fourier transform. Cores of the processor may be dedicated to such functions, or the cores may share responsibilities for the functions, such as through multithreading.

Claims

1. A dynamic condition monitoring system comprising:

a dynamic condition monitor configured to be coupled to at least one sensor for detecting a dynamic condition of a machine system and to receive signals from the sensor representative of the dynamic condition; and

a multi-core processor operative in the monitor for receiving data derived from the signals and for performing dynamic condition analysis based upon the received signals.

2. The system of claim 1, wherein the processor includes two cores coupled to one another for data exchange therebetween.

3. The system of claim 1, wherein a first core performs dedicated functions including managing at least transmission of data to a remote device, and a second core performs dedicated functions of receiving and processing signals from a sensor representative of a dynamic operating parameter of the machine system.

4. The system of claim 3, wherein the first or second core is configured to perform computations based on the received signals and configuration parameters stored in a memory circuit.

5. The system of claim 4, wherein the computations performed by the second core include a fast Fourier transform.

6. The system of claim 5, wherein the fast Fourier transform derives vibration data from the received signals.

7. The system of claim 6, wherein at least one of the first and second cores is configured to output an alarm signal based upon the vibration data.

8. The system of claim 1, wherein the cores of the processor execute instructions in accordance with symmetrical multi-processing.

9. A dynamic condition monitoring system comprising:

a dynamic condition monitor configured to be coupled to at least one sensor for detecting a dynamic condition of a machine system and to receive signals from the sensor representative of the dynamic condition; and

a multi-core processor operative in the monitor for receiving data derived from the signals and for performing dynamic condition analysis based upon the received signals, at least one core of the multi-core processor being dedicated to perform vibration analysis based upon the signals to the exclusion of at least one other core.

10. The monitor of claim 9, wherein the cores of the processor are dissimilar, and execute instructions in accordance with asymmetrical multi-processing.

11. A monitor for monitoring dynamic operating parameters of a machine system, the monitor comprising:

a sensor interface for receiving signals from a sensor representative of a dynamic operation parameter of the machine system;

a memory circuit for storing configuration parameters of the monitor;

a multi-core processor coupled to the interface and to the memory circuit, the processor being configured to manage at least transmission of data to a remote device, and to receive the signals and perform computations based on the received signals and the configuration parameters stored in the memory circuit, including a fast Fourier transform of the signals to derive vibration data from the received signals.

12. The monitor of claim 11, wherein the processor includes two cores coupled to one another for data exchange therebetween.

13. The monitor of claim 11, wherein the cores of the processor execute instructions in accordance with symmetrical multi-processing.

14. The monitor of claim 11, wherein the cores of the processor are dissimilar, and execute instructions in accordance with asymmetrical multi-processing.

15. The monitor of claim 11, wherein the processor is configured to output an alarm signal based upon the vibration data.

16. The monitor of claim 11, wherein the managing function is dedicated to be performed by a first core, and the computation function is dedicated to be performed by a second core.

17. A modular monitoring system for monitoring dynamic operating parameters of a machine system, the monitoring system comprising:

a plurality of sensors for detecting dynamic operating parameters of the machine system at a desired location and for generating signals representative thereof; and

a plurality of monitors, each monitor being coupled to at least one sensor and including a memory circuit for storing configuration parameters of the monitor and a multi-core processor coupled to receive data from at least one sensor and from the memory circuit, multiple cores of the processor being configured to manage at least transmission of data to a remote device, and to perform computations based on the received signals and the configuration parameters stored in the memory circuit, including a fast Fourier transform of the signals to derive vibration data from the received signals.

18. The system of claim 17, wherein each processor includes two cores coupled to one another for data exchange therebetween.

19. The system of claim 17, wherein the cores of each processor execute instructions in accordance with symmetrical multi-processing.

20. The system of claim 17, wherein the cores of the processor are dissimilar, and execute instructions in accordance with asymmetrical multi-processing.

21. The system of claim 17, wherein the sensors include accelerometers and tachometers.

22. The system of claim 17, wherein at least one of the monitors is configured to derive vibration related data based upon signals received from sensors to which it is coupled and upon signals from sensors from other monitors.

23. A dynamic condition monitoring system comprising:

a portable dynamic condition monitor configured to receive signals from sensors or from condition monitors coupled to sensors, the sensors detecting a dynamic condition of a machine system; and

a multi-core processor operative in the portable monitor for receiving data derived from the signals and for performing dynamic condition analysis based upon the received signals.

24. The system of claim 23, wherein the portable dynamic condition monitor is configured to receive data from the sensors or from the monitors via a wireless data communications protocol.