1. A system, comprising: a processor; a wireless signal transceiver in communication with said processor; two or more sensors configured to detect two or more operating parameters of a machine and generate corresponding parameter information signals; one or more transponder means configured to receive the parameter information signals from said sensors and wirelessly communicate the operating parameter data to said wireless signal transceiver in response to a selective interrogation signal; a processor-readable medium, in communication with said processor, encoded with programming instructions executable by said processor to: control generation by said transceiver of the selective interrogation signal, and perform computations on the operating parameter data.