Sea condition monitor based on friction nanometer generator and piezoelectricity

The invention discloses a sea condition monitor based on a friction nanometer power generator and piezoelectricity. The sea condition monitor comprises a friction nanometer power generation unit, a piezoelectric unit, a supporting unit, a suspension beam, a floating body, a floating ball and a sliding assembly. Based on a triboelectrification effect and a piezoelectric effect, a mechanical signal of sea wave force is converted into an electric signal, and then the electric signal is represented as the wave size. Wherein the friction nanometer power generation unit can be used for monitoring low-frequency wave signals, the piezoelectric unit can be used for monitoring high-frequency sea wave signals, the two novel power generation mechanisms are combined, the applicability of the sea condition monitor in the complex sea environment is improved, and the sea wave states in different sea environments can be observed in real time. According to the invention, the application range of combination of friction nanomet