Removable stand alone vibration monitor with automatically configured alarm thresholds

• US 8,803,698 B1
• Filed: 11/23/2010
• Issued: 08/12/2014
• Est. Priority Date: 11/23/2010
• Status: Active Grant

• Current Assignee: Fluke Corporation (Fortive Corp.)
• Original Assignee: Fluke Corporation (Fortive Corp.)
• Inventors: Heydron, Paul Herman
• Primary Examiner(s): Nguyen, Phung
• Application Number:
  US12/953,275
• Time in Patent Office: 1,358 Days
• Field of Search: 340/683, 340/506, 340/679, 340/870.17, 700/280, 361/23
• US Class Current: 340/683
• 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 parameters of a machine to be monitored to a vibration diagnostic instrument. The user also specifies a location of the machine to be monitored, an alarm level to be set, and the type of alarm to be sent. The instrument then automatically generates appropriate alarm thresholds and transmits the information to a removable stand-alone monitor. The stand-alone monitor acquires vibration data about the machine and sends the appropriate alerts when an alarm threshold has been reached.

Claims

1. A combination of vibration monitor and vibration diagnostic instrument, comprising:

a vibration monitor located at a rotating machine, comprising;

a vibration sensor;

a memory having stored thereon an alarm threshold value, wherein the value is based upon machine parameters;

a processor coupled to the memory and the vibration sensor and configured to process data acquired by the vibration 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 and send an alert signal when the alarm threshold value has been reached; and

a vibration diagnostic instrument at an external location from the vibration monitor, comprising;

a user interface for receiving operational parameters of the machine;

means for processing the operational parameters and determining one or more alarm threshold values; and

means for downloading the alarm threshold values to the vibration monitor.

2. The combination of claim 1, wherein the vibration monitor is further configured to receive the alarm threshold value wirelessly.

3. The combination of claim 1, wherein the vibration monitor has a single vibration sensor requiring the monitor to be moved to monitor a second location on the same or different machine.

4. The combination of claim 1, wherein transmitting the alert signal comprises utilizing flashing lights, or sending a message over a wired or wireless network.

5. The combination of claim 1, wherein the alarm threshold value is received through a wired connection from the vibration diagnostic instrument.

6. The combination of claim 1, wherein the vibration diagnostic instrument computes the alarm threshold value without utilizing a baseline history of the machine.

7. A method for monitoring vibrations of a machine, comprising:

placing a vibration monitor at a rotating machine, wherein the vibration monitor comprises a vibration sensor, a memory, a processor coupled to the memory, and a communication module coupled to the processor;

placing a vibration diagnostic instrument at an external location from the vibration monitor, wherein the vibration monitor comprises a user interface for receiving user input relating to operational parameters of the rotating machine, means for processing the user input and determining one or more alarm thresholds, and means for downloading the alarm thresholds to the vibration monitor;

requesting and receiving the operational parameters of the rotating machine at the vibration diagnostic machine;

determining an alarm threshold at the vibration diagnostic machine;

downloading the alarm threshold from the vibration diagnostic machine to the memory of the vibration monitor at the rotating machine;

acquiring vibration data from the rotating machine utilizing the vibration monitor;

processing the acquired vibration data based upon the alarm threshold value utilizing the vibration monitor; and

sending an alert from the vibration monitor when the alarm threshold has been reached.

8. The method of claim 7, further comprising selecting a point of the machine to be monitored and attaching a vibration sensor of the vibration monitor to acquire data from the point.

9. The method of claim 7, wherein the alarm threshold is computed without utilizing a baseline history of the machine to determine the alarm threshold.

10. The method of claim 7, further comprising:

specifying a method by which the alert is sent when the alarm threshold has been reached.

11. The method of claim 7, further comprising monitoring a plurality of locations on the same or different machine by moving the vibration monitor to each location in sequence.

12. A combination of monitor and instrument, comprising:

a monitor, comprising;

a sensor for receiving data;

a communication module configured to receive an alarm threshold value and to transmit an alert signal when the alarm threshold value has been reached;

a memory to store the alarm threshold value; and

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

an instrument external from the monitor, comprising;

a user interface for receiving user input;

means for processing the user input and determining one or more alarm threshold values; and

means for downloading the alarm threshold values to the monitor.

13. The combination of claim 12, 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.

14. The combination of claim 12, wherein the data is related to power quality.

15. The combination of claim 12, wherein the data is related to thermal energy.

16. The combination of claim 12, wherein the monitored data includes temperature of components, and further wherein parameters relating to the monitored data provided by the user include thermal images of the components.