Based on the current hot issues on the visible light indoor positioning

we design a kind of visible light indoor localization method based on ultrasonic distance measurement after comparing several common visible light positioning method and combining with the existing conditions.Our proposed method has the advantages of high precision and low cost.This design uses the optical signal to achieve the synchronization with ultrasonic auxiliary ranging module.Then

light positioning algorithm based on multiple input multiple output is used to calculate the sensor location coordinates

which can effectively solve the issues of interferences in the transmitted light emitting diode and delay synchronization in received module.The error analysis and multiple debugging show that the sensor can correctly distinguish the region and coordinates of its location

and control the error in the request scope with good performance.