Obstruction zone generation device and method

An obstruction zone generation method, comprising:

• generating calculation information based on sensor information acquired by one or more information acquisition devices, wherein the calculation information is required to calculate an obstacle zone by target (OZT) for each target ship of one or more target ships;
• calculating the OZT for each target ship of the one or more target ships to generate OZT information, wherein the OZT information includes the calculated OZT of each target ship of the one or more target ships;
• determining for each target ship of the one or more target ships whether to mask the OZT of the respective target ship in the OZT information based on a direction of the respective target ship to generate output information;
• and
• generating OZT display information for displaying the OZT of the one or more target ships based on the output information and the OZT information.

A non-transitory computer readable medium having stored thereon computer-executable instructions which, when executed by a computer, cause the computer to:

• generate calculation information based on sensor information acquired by one or more information acquisition devices, wherein the calculation information is required to calculate an obstacle zone by target (OZT) for each target ship of one or more target ships;
• calculate the OZT for each target ship of the one or more target ships to generate OZT information, wherein the OZT information includes the calculated OZT of each target ship of the one or more target ships;
• determine for each target ship of the one or more target ships whether to mask the OZT of the respective target ship in the OZT information based on a direction of the respective target ship to generate output information;
• and
• generate OZT display information for displaying the OZT of the one or more target ships (204a-204d) based on the output information and the OZT information.