Removable stand alone vibration monitor with automatically configured alarm thresholds

• US 9,251,690 B2
• Filed: 07/01/2014
• Issued: 02/02/2016
• Est. Priority Date: 11/23/2010
• Status: Active Grant

• Current Assignee: Fluke Corporation (Fortive Corp.)
• Original Assignee: Fluke Corporation (Fortive Corp.)
• Inventors: Heydron, Paul H.
• Primary Examiner(s): Nguyen, Phung
• Application Number:
  US14/321,555
• Publication Number:
  US 20140313043A1
• Time in Patent Office: 581 Days
• Field of Search: 340/683, 340/506, 340/679, 340/870.17, 700/280, 361/23
• US Class Current: 1/1
• CPC Class Codes: G01H 1/003 of rotating machines G01H1/10 takes precedence
• CPC Class Codes: G01M 13/028 Acoustic or vibration analysis
• CPC Class Codes: G08B 21/187 Machine fault alarms

Abstract

A user provides relevant information about the operating parameters of a machine to be monitored to a diagnostic instrument. The user also specifies a location of the machine to be monitored, an alarm level to be set, and the type of alert to be sent. The instrument then automatically generates appropriate an alarm threshold using a set of rules applied to the inputs. The instrument then transmits the alarm threshold to a removable stand-alone monitor. The stand-alone monitor acquires data about the machine, compares the date to the alarm threshold, and sends a user-specified alert when the alarm threshold has been reached. Using the diagnostic instrument and monitor, machines can be monitored for vibration, temperature, or a power parameter.

Claims

1. A monitor for monitoring a machine, comprising:

a sensor;

a memory configured to store an alarm threshold value, wherein the alarm threshold value is automatically configured from a set of rules applied to inputs characterizing machine operating parameters, machine location, and alarm parameters;

a processor coupled to the memory and the sensor and configured to process data acquired by the sensor to determine if the alarm threshold value has been reached; and

a communication module coupled to the processor and configured to receive the alarm threshold value from an instrument external to the monitor and to send an alert signal when the alarm threshold value has been reached.

2. The monitor of claim 1, wherein the sensor senses at least one of vibration, temperature, or a power parameter.

3. The monitor of claim 1, wherein the sensor senses at least one of phase balance, maximum harmonic content, or phase angle.

4. The monitor of claim 1, wherein the alarm parameters include a level of alarm threshold to be set and a type of alert signal to be sent.

5. The monitor of claim 1, wherein the alert signal includes at least one of flashing lights, placing a call to a phone, or sending a message over a wired or wireless network.

6. The monitor of claim 1, wherein the alarm threshold value is received wirelessly from the external instrument.

7. The monitor of claim 1, wherein the alarm threshold value is received through a wired connection from the external instrument.

8. The monitor of claim 1, wherein the external instrument determines the alarm threshold value without utilizing a baseline history of the machine.

9. The monitor of claim 1, wherein the memory stores the data acquired by the sensor, and the communication module sends the data with the alert signal when the alarm threshold value has been reached.

10. The monitor of claim 1, wherein the inputs include a location of a component to be monitored selected from a thermal image.

11. A system comprising:

a diagnostic instrument including a user interface configured to request and receive inputs characterizing operating parameters and alarm parameters of a machine, wherein the diagnostic instrument is configured to automatically determine an alarm threshold value from a set of rules applied to the inputs, and wherein the diagnostic instrument is configured to download the alarm threshold value to a monitor external to the diagnostic instrument; and

a monitor external to the diagnostic instrument and configured to receive the alarm threshold value for use by the monitor in determining whether the alarm threshold value has been met, wherein the monitor includes a sensor couplable to the machine at a first location, and wherein the monitor and the sensor are configured to be re-deployed to a location different from the first location.

12. The system of claim 11, wherein the monitor further includes:

a memory configured to store the alarm threshold value;

a processor coupled to the memory and the sensor and configured to process data acquired by the sensor to determine if the alarm threshold value has been reached; and

a communication module coupled to the processor and configured to receive the alarm threshold value from the diagnostic instrument and to send an alert signal when the alarm threshold value has been reached.

13. The system of claim 11, wherein the diagnostic instrument further comprises a transmitter for wirelessly downloading the alarm threshold value to the monitor.

14. The system of claim 13, wherein the transmitter transmits RF or IR signals.

15. The system of claim 11, wherein the diagnostic instrument further comprises a wired connection for downloading the alarm threshold value to the monitor.

16. The system of claim 15, wherein the wired connection is an optical cable.

17. The system of claim 11, wherein the diagnostic instrument is configured to determine the alarm threshold value without utilizing a baseline history of the machine.

18. The system of claim 11, wherein the diagnostic instrument is configured to determine an alarm threshold value related to at least one of vibration, temperature, or power quality.

19. The system of claim 11, wherein the inputs include a location of a component to be monitored selected from a thermal image.