The present invention relates to an umbrella comprising: a canopy; a plurality of ribs which fold and unfold the canopy; and a ring which connects the ribs, and is elevated depending on a stand. The present invention, which outputs different scales depending on pressure of rainwater, comprises: a waterproof film (102) which is positioned on an upper surface of the canopy divided into the ribs (101); a plurality of piezoelectric elements (103) which are positioned between the canopy and the waterproof film (102), and convert pressure due to rain into an electric signal; a sensor (104) which detects the electric signal of a piezoelectric element as a signal value; a sound source (105) which transmits different scales to a speaker (106) with a digital signal depending on a signal value detected in the sensor; the speaker (106) which outputs the signal transmitted in the sound source (105) as sound, and is positioned on the stand of an upper part of the ring; a wiring (107) which is positioned inside the rib and the stand to transmit the electric signal and the digital signal; and a battery (108) which supplies power to the sound source (105).
展开▼
