Simulation of Simultaneous Multiple-Identity Checking System by Visible Light Blinking

摘要

This paper presents a method to detect multiple identity via the identity checking system by visible light. The Identity checking system has an ability to read an identity encoded in blinking signal of visible light. The distance between reader and transmitter of the system can be far apart in 1-50 m. that beyond the limitations of identification system using QRCode or RFID technology. The transmitter composed of a microcontroller to control LED to generate a blinking pattern for one identity of object. The reader is a computer software that read and process the images captured by a camera to detect a set of specified blinking patterns. The detected pattern is then decoded and to find a matching identity stored in database. In order to develop more advanced identification system, halving technique is applied to the identification reader software as to identify two objects' identity in the same time. This system can apply to various such as security, advertising, identification system, and etc.