In an apparatus installed on a boat (A) in plural boats including (A, B) for avoiding collision with the boat (B), there are equipped with first and second radio-wave transceiver units installed at spaced positions that transmit to and receive radio waves of a predetermined frequency from the boat (B), and first and distance calculating units that calculate clearance distances from the boat (B) based on attenuation degree of the radio waves transmitted from the boat (B). An intersection point of circles whose origins in an x-y coordinate plane are set to positions corresponding to the first and second positions and whose radii are set to values corresponding to the calculated clearance distances. Direction and position of the boat (B) are estimated from the intersection point, and an instruction necessary for avoiding collision with the boat (B) is issued based on the estimated direction and position.


    Access

    Download


    Export, share and cite



    Title :

    SMALL BOAT COLLISION AVOIDANCE APPARATUS


    Contributors:

    Publication date :

    2017-09-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / H04B TRANSMISSION , Übertragung / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze



    Small boat collision avoidance apparatus

    HASHIZUME TAKASHI / KIMATA RYUICHI | European Patent Office | 2018

    Free access

    COLLISION AVOIDANCE APPARATUS AND COLLISION AVOIDANCE METHOD

    KIM MINGYU | European Patent Office | 2023

    Free access

    COLLISION AVOIDANCE APPARATUS AND COLLISION AVOIDANCE METHOD

    KIM MIN GYU | European Patent Office | 2019

    Free access

    COLLISION AVOIDANCE APPARATUS AND COLLISION AVOIDANCE METHOD

    KIM MINGYU | European Patent Office | 2020

    Free access

    COLLISION AVOIDANCE APPARATUS AND COLLISION AVOIDANCE METHOD

    KIM MINGYU | European Patent Office | 2020

    Free access