Indoor visible light communication automatic alignment system and method

The invention discloses an automatic alignment system for indoor visible light communication. The automatic alignment system comprises a transmitting end, a receiving end and a tracking unit of a white light LED, wherein the transmitting end is used for generating an original data signal and controlling the white-light LED to emit a light modulation signal to be transmitted to the receiving end; the receiving end is used for receiving the light modulation signal emitted by the white light LED of the emitting end and recovering an original signal; and the white light LED tracking unit is used for identifying, positioning and tracking the white light LED at the transmitting end. According to the indoor visible light communication automatic alignment system, the problem that the receiving direction of visible light cannot be automatically adjusted in the prior art is solved. The invention also discloses an indoor visible light communication automatic alignment method. 本发明公开的室内可见光通信自动对准系统，包括有发射端、接收端和白光LED的跟踪单元；发射