Inter-ship distance real-time determination system and method under icebreaker navigation protection

• Main Authors: ZHANG KAI, ZHANG DI, ZHANG JINFEN, ZENG YONG, HE YANKANG, YAO HOUJIE, CAO WEI, WU JING, ZHANG MINGYANG, ZHANG CHI
• Format: Patent
• Language: Chinese; English
• Published: 25.10.2019
• Subjects: AUXILIARIES ON VESSELS; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; TRANSPORTING

The invention discloses an inter-ship distance real-time determination system and method under icebreaker navigation, and the method comprises the steps: 1), collecting sea ice environment data of a ship navigation region and the ship information of an icebreaker and a navigated ship, and calculating the ship suggested speed of a ship under a specific ice condition according to a polar region iceregion navigation system; 2) according to the historical data of the ship navigation speed, extracting ship navigation speed distribution under icebreaker navigation protection to obtain fitted speeddistribution; 3) establishing a ship following distance simulation model, and calculating the shortest safe following distance; and 4) comparing the real-time car-following distance measured by the distance measuring device with the shortest safety car-following distance output by simulation, and carrying out early warning according to the comparison result. According to the method, the collisionrisk between ships under ic