Design of hidden pedometer based on wireless power transmission

Abstract A wireless power transmission pedometer has been designed to address the issue of reduced user experience caused by incomplete and inaccurate measurement accuracy of various traditional pedometers, as well as inconvenience in supplementing electrical energy. Firstly, the working principle of the pedometer was explained, followed by a detailed hardware circuit design. The system adopts the principle of magnetic coupling resonance for wireless charging, and uploads motion data to the mobile phone through Bluetooth 4.0 chip. Finally, software design was carried out, using a modular operating framework and guidance platform to facilitate future upgrades and modifications of the system. Experiments have shown that the designed pedometer has accurate detection accuracy, advantages of small size, strong functionality, and convenient charging, providing an innovative solution for wireless power supply of wearable devices.