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Machine translation
1. (WO1980002743) PROCESS AND DEVICE FOR THE DETECTION AND PREVENTION OF COLLISION RISKS IN DEEP SEA AND COSTAL NAVIGATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002743    International Application No.:    PCT/FR1980/000087
Publication Date: 11.12.1980 International Filing Date: 29.05.1980
IPC:
G01C 21/20 (2006.01), G01S 13/93 (2006.01)
Applicants:
Inventors:
Priority Data:
7914036 31.05.1979 FR
Title (EN) PROCESS AND DEVICE FOR THE DETECTION AND PREVENTION OF COLLISION RISKS IN DEEP SEA AND COSTAL NAVIGATION
(FR) PROCEDE ET DISPOSITIF DE DETECTION ET DE PREVENTION DE RISQUES DE COLLISIONS DANS LA NAVIGATION EN HAUTE MER ET COTIERE
Abstract: front page image
(EN)This process for the detection and prevention of collision hazards between a ship fitted with a radar on board and moving or fixed obstacles identified on the radar screen on board of the ship, consists in determining with respect to said obstacles, taking into account such parameters as distance, speed and heading thereof, dangerous sectors of the heading and the speed for said ship, plotting said dangerous sectors for the heading and the speed on a support, plotting on the same support the speed vector of the ship, examining whether the end of said vector is within or outside said dangerous heading and speed sectors, a collision risk existing when the end of the speed vector is within at least one of said dangerous heading and speed sectors, and in such case, choosing a new speed vector so as to make the end of such vector be outside the whole of the heading and speed dangerous sectors.
(FR)Ce procede de detection et de prevention de risques de collisions entre un navire equipe d"un radar de bord et des obstacles mobiles ou fixes reperes sur l"ecran du radar de bord du navire, consiste a determiner vis-a-vis desdits obstacles, compte tenu des parametres de distance, de vitesse et de cap de ceux-ci, des secteurs dangereux de cap et de vitesse pour ledit navire, a tracer lesdits secteurs dangereux de cap et de vitesse sur un support, a tracer sur le meme support le vecteur vitesse du navire, a examiner si l"extremite dudit vecteur se trouve a l"interieur ou a l"exterieur desdits secteurs dangereux de cap et de vitesse, un risque d"abordage existant lorsque l"extremite du vecteur vitesse se trouve a l"interieur de l"un au moins desdits secteurs dangereux de cap et de vitesse, et dans ce cas, a choisir un nouveau vecteur vitesse pour que la pointe de celui-ci se trouve a l"exterieur de l"ensemble des secteurs dangereux de cap et de vitesse.
Designated States:
Publication Language: French (FR)
Filing Language: French (FR)