Mobile terminal, method of computing absolute coordinates of wireless AP by mobile terminal, and system of computing absolute coordinates of wireless AP using mobile terminal

摘要

A mobile terminal capable of receiving a radio signal from a wireless access point (AP) and a method of computing absolute coordinates of a wireless AP thereof are provided. The mobile terminal includes: a main body; a location information unit mounted in the main body and collecting absolute coordinates of the main body; a wireless communication unit computing relative distance information between an external wireless access point (AP) and the main body by using radio signals transmitted and received between the wireless AP and the main body; a detection unit detecting relative coordinates of the main body by using the distance information and relative coordinates of the wireless AP; and a controller computing absolute coordinates of the wireless AP.

主权项

1. A mobile terminal comprising:
a main body; a location information unit mounted in the main body and collecting at least three absolute coordinates of the main body from at least three different locations; a wireless communication unit transmitting and receiving radio signals between external wireless access points (APs) and the main body, the radio signals used for computing relative distance information between the APs and the main body; a detection unit detecting at least three relative coordinates of the main body by using the relative distance information and pre-set relative coordinates of the wireless APs; and a controller:
computing a conversion parameter for converting the detected at least three relative coordinates of the main body into the at least three absolute coordinates, each of the at least three absolute coordinates of the main body respectively corresponding to one of the at least three relative coordinates of the main body; andcomputing absolute coordinates of the wireless APs by using the conversion parameter, wherein the conversion parameter is a matrix having a size corresponding to a number of the absolute coordinates of the main body.