Abstract: Traditional visible light positioning algorithms usually require multiple light sources to achieve positioning, which limits the practical application of visible light positioning. Aiming at the challenge, a visible light communication assisted perspective circle and lines positioning algorithm based on a single light source is proposed to achieve high-precision positioning. First, a single circular emitting diode (LED)is used as the transmitter to transmit the positioning information to the receiver based on visible light communication. Then, the receiver captures the line features of the ceiling plane and the circle feature of the LED to obtain the orientation and coordinate of the LED in the camera coordinate system. Finally, the pose and position of the receiver in the world coordinate system can be obtained according to the positioning information. The proposed algorithm can achieve accurate three dimensions positioning using a single light source and a camera without tilting angle limitation. The simulation results show that when the radius of the LED is 13 cm, the positioning error of more than 95% of the simulated sample points is within 10 cm by using the proposed algorithm. The experimental results show that the positioning errors are within 10 cm by using the proposed algorithm.

Key words: visible light communication ,  visible light positioning , circular single light source , image sensor