Design of sensor system for piezoelectric energy collection
In order to solve the problem of limited power supply of wireless sensor system,an energy acquisition system based on piezoelectric effect was designed.The system consisted of energy collection module,energy management module and wireless sensing module.The low-frequency mechanical vibration energy in the environment was collected and stored in the energy storage element to achieve the purpose of supplying power to the sensing system.The energy management module adopted the booster chip BQ25570,which raised the voltage at the input end to 3.3 V and stored it in the energy storage element to supply power to the whole system.The experimental results showed that the designed wireless sensor self-power supply system could realize energy collection and utilization under certain conditions,and prolong the working time of the system to a certain extent.
self-poweredpiezoelectric effectenergy collectionsensing system
NETL
NSTL
万方数据
