Method for measuring 3 Dimensional location using visible light communication indoor and system thereof, and method for providing location based service

摘要

The three-dimensional location measurement method and system, a location-based service providing method using a visible light-house communication is disclosed. According to this method, the mobile station calculates the delay time of the distance signal sequence to be transmitted through each of the visible-light communication from the at least three lights to measure the distance to each of the three lights. Then, the measured three-dimensional position of the mobile terminal by using the three-dimensional coordinate information of the three lights and the distance to be measured from above. Then, by using the distance measured in the three-dimensional coordinate information and the three-dimensional position of the mobile terminal of the three lights to measure the height of the mobile terminal in the indoor. According to the invention, it is possible to accurately measure the position of the mobile terminal by using a visible light communication that utilizes a lighting infrastructure that already exist. ;