POWERLESS AND NON-DIRECTIONAL REMOTE CONTROLLER DEVICE HAVING SURFACE ACOUSTIC WAVE SENSOR

The present invention relates to a powerless and non-directional remote controller having a surface acoustic wave sensor applied thereto, which comprises: a remote controller (600) with a built-in surface acoustic wave (SAW) strain sensor (300) which transmits a radio frequency (RF) interrogation signal as an RF response signal having the specific time delay corresponding the RF interrogation signal, and modifies the RF response signal when physical force is applied by a button (500) to transmit the same; and a RF transceiver (100) for comparing time delay intervals in the RF response signal to distinguish the number of the button (500) by determining physical quantity applied to the SAW strain sensor (300). Accordingly, the present invention does not need a power supplier such as a battery or a self-generator, and does not cause the degradation of the function even if used for a long time.