METHOD FOR MONITORING A HEALTH STATUS OF A BEARING WITH A WARNING DEVICE HAVING A CLOSE RANGE WIRELESS INTERFACE

• US 20140152426A1
• Filed: 09/30/2013
• Published: 06/05/2014
• Est. Priority Date: 12/20/2011
• Status: Active Grant

• Current Assignee: ABet SKF
• Original Assignee: ABet SKF
• Inventors: Murphy, Jon D.
• Granted Patent: US 9,222,507 B2
• Time in Patent Office: Days
• US Class Current: 340/10.51
• CPC Class Codes: F16C 19/52 with devices affected by abnormal or undesired conditions
• CPC Class Codes: F16C 19/525 related to temperature and heat, e.g. insulation
• CPC Class Codes: F16C 19/527 related to vibration and noise
• CPC Class Codes: F16C 2300/02 General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned
• CPC Class Codes: F16C 41/008 Identification means, e.g. markings, RFID-tags; Data transfer means
• CPC Class Codes: G01M 13/04 Bearings
• CPC Class Codes: G06K 19/0716 at least one of the integrated circuit chips comprising a sensor or an interface to a sensor

Abstract

A method of reading sensor values from or writing programming alarm and monitoring algorithm parameters into a warning device for monitoring a bearing having a close range wireless interface is disclosed. The method of reading or writing includes providing an RFID tag having an integrated circuit with memory, a radio for modulating and demodulating a radio-frequency signal, an antenna for receiving and transmitting the radio-frequency signal, and a digital bus mounted to a PCB, the digital bus connecting a microcontroller to the RFID tag.

The steps of downloading the parameters into memory, accessing the parameters with the microcontroller and adapting the parameters according to the stored parameters are carried out during a write operation. The steps of uploading the stored sensor value from memory to the radio, and transmitting the sensor value with the radio via the antenna are carried out during the reading operation.

Claims

1. A method of programming alarm and monitoring algorithm parameters into a warning device for monitoring a health status of a bearing having a close range wireless interface, the method comprising the steps of:

providing an RFID tag having an integrated circuit with memory for storing and processing information, and a radio for modulating and demodulating a radio-frequency signal,

providing an antenna for receiving and transmitting the modulated and demodulated radio-frequency signal, and connecting to the RFID tag,

providing a digital bus connecting a microcontroller to the RFID tag,

downloading the parameters through the antenna and storing them into the RFID tag'"'"'s memory,

accessing the newly stored parameters stored within the RFID tag'"'"'s memory with the microcontroller over the digital bus, and

adapting the alarm and monitoring algorithm preloaded into the microcontroller according to the newly stored parameters.

2. A method of reading at least one sensor value from a warning device for monitoring a health status of a bearing having a close range wireless interface, the method comprising the steps of:

providing an RFID tag having an integrated circuit with memory for storing and processing information, and a radio for modulating and demodulating a radio-frequency signal,

providing an antenna for receiving and transmitting the modulated and demodulated signal, and connected to the RFID tag,

providing a digital bus for connecting a microcontroller to the RFID tag, and

uploading at least one stored sensor value from the RFID tag'"'"'s memory through the antenna.

3. The method according to claim 2, wherein the at least one sensor value reading is one of a velocity, enveloped acceleration and a temperature of a bearing disposed within a piece of rotating industrial equipment.

4. The method according to claim 2, wherein the at least one sensor value reading is a time waveform.

5. The method according to claim 2, wherein the at least one sensor value reading is an FFT.

6. The method according to claim 2, wherein the digital bus is a high speed serial bus.

7. The method according to claim 2, wherein the at least one sensor value stored within the RFID tag'"'"'s memory is concurrently stored within a memory disposed within the microcontroller.

9. The method according to claim 7, wherein the at least one sensor value reading is one of a velocity, enveloped acceleration and a temperature of a bearing disposed within a piece of rotating industrial equipment.

10. The method according to claim 7, wherein the at least one sensor value reading is a time waveform.

11. The method according to claim 7, wherein the at least one sensor value reading is an FFT.

12. The method according to claim 7, wherein the digital bus is a high speed serial bus.

8. A method of reading sensor values from or writing programming alarm and monitoring algorithm parameters into a warning device for monitoring a health status of a bearing having a close range wireless interface, the method of reading or writing comprising the steps of:

providing an RFID tag having an integrated circuit with memory for storing and processing information, a radio for modulating and demodulating a radio-frequency signal, an antenna for receiving and transmitting the modulated and demodulated radio-frequency signal,

providing a digital bus mounted to a circuit board, the high speed serial bus connecting a microcontroller to the RFID tag, wherein the steps of;

downloading the parameters through the antenna and storing them into the memory, accessing the newly stored parameters stored within the memory with the microcontroller over the digital bus, and adapting the alarm and monitoring algorithm according to the stored parameters are carried out during the writing operation, and wherein the steps of;

uploading at least one stored sensor value from the memory to the radio, and wherein transmitting the uploaded at least one stored sensor value with the radio via the antenna are carried out during the reading operation.