Inertial sensor-based electronic pen and writing recognition model establishment method thereof

The invention discloses an inertial sensor-based electronic pen and a writing recognition model establishing method of the electronic pen. The electronic pen comprises a refill arranged on a pen point; a spring arranged in the pen point and connected with the refill; a point contact type switch connected with the spring; an acceleration sensor located inside the pen body and close to one end of the pen point, and a gyroscope connected with the acceleration sensor; a power supply connected with the gyroscope and the point contact type switch; a MCU connected with the gyroscope and the acceleration sensor; a wireless transmitting module connected with the MCU; wherein the acceleration sensor and the gyroscope are used for collecting writing track data, and the MCU is used for carrying out input character recognition through an electronic pen writing recognition model. Compared with the prior art, input can be achieved without the aid of other auxiliary devices, and the input device is small, exquisite, convenie