Gesture recognition-based PC intelligent input system

The invention discloses a gesture recognition-based PC intelligent input system, which is designed aiming at the shortages of conventional PC input equipment in the application field of PCs using large-size displays. The system consists of a host and a handheld terminal, wherein the handheld terminal recognizes hand actions of a user by using an acceleration sensor, and transmits a recognition result to the host in a wireless way after preprocessing the recognition result; and the host receives recognition information, performs further processing, converts the recognition information into a control command, transmits the control command to a computer through a USB interface, and finishes the operation on a PC. The handheld terminal has the characteristics of low power consumption and small volume; the host supports plug and play; and the overall system has the characteristics of easy use and low cost. The user can control the PC conveniently in a mode which is more in accordance with a body language by simple actions of swinging a hand upwards, downwards, leftwards and downwards.