Abstract:
본 발명의 오염지역의 윤곽을 탐지하기 위하여 이동로봇의 경로를 설정하는 방법은, 정찰대상영역에 대하여 격자 커버리지 단계, 윤곽발견 단계, 및 잔여격자 커버리지 단계를 순차적으로 수행하는 순차수행법, 또는 정찰대상영역에 대하여 격자 커버리지 단계와 윤곽발견 단계를 교대로 수행하는 동시수행법 중 어느 하나에 따라서 이동로봇의 경로를 설정한다. 본 발명의 시간에 따라 확산되는 오염지역의 윤곽을 예측하는 방법은, 정찰대상영역을 이동하면서 화학정찰을 수행하는 이동로봇에 탑재된 센서로부터 획득된 탐측데이터를 기반으로 기준농도점을 추정하는 기준농도점 추정단계와, 상기 추정된 기준농도점을 이용하여 특정시각의 기준농도 윤곽을 추정하는 특정시각 기준농도 윤곽추정단계를 포함한다.
Abstract:
PURPOSE: An efficient time numerical analysis method of a 2D convection diffusion model for gas concentration is provided to limit a calculation area as a part of the whole area, thereby rapidly and accurately calculating the gas concentration. CONSTITUTION: A value applied to a variable used for a dioxide formula of a 2D convection diffusion model is inputted and initialized(S100). A convection environment is set up(S200). A calculation area in a gas concentration is expanded to the amount of expansion(S300). A numeric analysis calculation is performed for the expanded available area(S400). The available area is reduced corresponding to a calculation result(S500). [Reference numerals] (AA) Start; (BB) End; (S100) Setting an initial variable; (S200) Changing wind direction/wind speed; (S300) Area expansion step; (S310) Right direction expansion; (S320) Left direction; (S330) Upward direction expansion; (S340) Downward direction expansion; (S400) Limited area calculation; (S410) Column direction calculation; (s420) Row direction calculation; (S500) Area reduction step; (S510) Right direction reduction; (S520) Left direction reduction; (S530) Upward direction reduction; (S540) Downward direction reduction; (S600) K>final time
Abstract:
PURPOSE: A method of setting a path for a moving robot to detect contours of contaminated sites and a method of predicting the contours of the diffused contaminated sites according to the time using data detected by the moving robot estimate contours of basis concentrations at a certain time by performing interpolation using a basis concentration point estimated from a probing point. CONSTITUTION: A path of a moving robot is set depending on one among a sequential method and a simultaneous method to detect contours of contaminated sites. The sequential method sequentially performs a grid coverage step (100), a contour detection step (200) and a remaining grid coverage step (300) for a reconnaissance target area. The simultaneous method alternately performs the grid coverage step and the contour detection step for the reconnaissance target area. [Reference numerals] (100) Grid coverage step; (110) Going-straight unit; (120) Taking-the-corner unit; (200) Contour detection step; (210) Limit calculation process; (220) Contour ellipse detection step; (230) Contour ellipse calculation process; (300) Remaining grid coverage step; (310) Area-dividing process; (320) Remaining grid coverage process