Abstract:
위성항법 시스템과 비전 시스템 융합 기술 기반 자동 항법 기술이 개시된다. 본 발명의 일 면에 따른 자기위치 측위장치는 이동체 전방의 영상 획득을 위한 영상 획득부와, GPS(Global Positioning System) 위성으로부터 송신되는 신호를 수신하여 상기 이동체의 위치정보 데이터를 획득하는 위치정보 수신부와, 상기 영상 획득부에서 매 시각(epoch)마다 획득된 영상을 처리하여 객체를 인식하고 인식된 객체와 상기 이동체 사이의 거리를 연산한 비전 데이터를 출력하는 비전 처리부와, 상기 위치정보 수신부와 상기 비전 처리부(30)가 동기화된 데이터를 출력하도록 상기 위치정보 수신부와 상기 비전 처리부 사이의 시간 동기를 수행하는 시간 동기화부를 포함한다. 여기서, 상기 시간 동기화부는 상기 위치정보 수신부의 시간을 기준으로 상기 비전 처리부의 시계를 보정하는 것을 특징으로 한다.
Abstract:
The present invention relates to a device and a method for measuring an initial location coordinate of a moving object. The present invention can measure a location coordinate of the moving object in succession even when it is difficult to measure the location of the moving object, by using a satellite navigation system by measuring the initial location coordinate of the moving object using information between an object recognized through a vision system of the moving object, and the moving object.
Abstract:
Disclosed are a position decision apparatus and a method for same using a vision system. A position decision apparatus using a vision system comprises a determination unit which determines if recognition of an object positioned in n (n is a natural number of 4 or more) number of directions is possible in at least one camera and a processor which, once the recognition is determined to be possible, uses at least one of a first distance against a visible satellite and a second distance against the recognized object so as to determine current location.
Abstract:
The present invention relates to a method for determining a position to reduce the effects of multipath interference from a satellite navigation system, comprising the steps of: determining the distribution of the elevation angles for a plurality of satellites; determining a receiving strength of a signal from each satellite; determining the weight of the signal therefrom based on the distribution of the elevation angles and the receiving strength thereof; and determining the position based on the signal and the weight therefrom. [Reference numerals] (AA) Start; (BB,DD,FF,HH) No; (CC,EE,GG,II) Yes; (JJ) End; (S310) Determine the number of available satellites; (S320) Determine the distribution of the elevation angles; (S330) Determine a receiving strength of a signal; (S340) Number of entire available satellites >= 5; (S350) Receiving strength is excellent?; (S360,S380) Elevation angle is excellent?; (S370) Determine a first weight; (S390) Determine a second weight; (S400) Determine a third weight; (S410) Determine an uniform weight
Abstract:
To solve an inherent problem that a global positioning system has, the present invention provides a device and a method for calculating position for reliable and stable location determination by fusing with a vision system. According to the embodiment, the device and the method for calculating position are able to develop a more improved position determination system by fusing with a vision system to improve continuity and reliability in position determination and solve weaknesses of less accurate position determination due to an obstacle or an external influence and poor continuity due to a shading region. [Reference numerals] (210) Calculation unit; (220) Determination unit; (230) Computation unit; (240) Global positioning system; (250) Vision system; (AA) Processor; (BB) Memory