Patent ID: 9223005
Filing Date: 2015-12-29
Classification: G01S

Abstract:
1. A method for measuring location provided by a location measuring system, wherein the location measuring system comprises an electronic apparatus comprising a motion sensor, the method comprising: detecting, by the motion sensor a motion of the electronic apparatus to obtain motion information according to a moving process of the electronic apparatus; sensing, by a radio frequency identification reader of the electronic apparatus an identification tag by the electronic apparatus in the moving process, wherein the identification tag is set in an object; when the identification tag is sensed, calculating, by a processor of the electronic apparatus a displacement vector from a first sensing point to a second sensing point according to the motion information and calculating a shortest straight line distance between the first sensing point and the second sensing point, wherein the first sensing point is a location where the identification tag is previously sensed and the second sensing point is a location where the identification tag is currently sensed; determining by the processor whether the shortest straight line distance is greater than a threshold value, and calculating by the processor the relative location of the first sensing point and the second sensing point in case that the shortest straight line distance is greater than the threshold value; and determining by the processor whether an object identification code of the identification tag is the same to an object identification code read last time in case that the shortest straight line distance is not greater than the threshold value, and calculating by the processor the relative location of the first sensing point and the second sensing point in case that the object identification code of the identification tag is different to the object identification code read last time.