Self-driven wireless two-parameter sensing system based on triboelectrification and double-resonance circuit

The invention discloses a self-driven wireless two-parameter sensing system based on triboelectrification and a double-resonance circuit. The self-driven wireless two-parameter sensing system comprises a self-powered module, a symmetrical double-resonance circuit and a wireless signal transmission module. The self-energized module comprises a friction nanometer generator and an electronic switch; and the wireless signal transmission module receives frequency signals of the two capacitive sensors in the symmetrical double-resonance circuit through the signal output coil in a wireless transmission mode. In combination with the friction nano generator, the mechanical energy of the surrounding environment can be collected and converted into electric energy without an external active management circuit and a battery, energy is provided for an electronic switch and a resonant sensing circuit, the problem of long-term power supply of the sensor is solved, and the monitoring cost of a factory is reduced. In addition,