Method for monitoring a health status of a bearing with a warning device having a close range wireless interface

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.

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.