近年来海盗活动日趋频繁。为防止海盗的搔扰、抢劫,丹麦马里涅阿拉尔姆公司制造出了一种特殊的电子系统。它由红外线传送器、声音警报器,以及一个可自行接通水龙带的电子装置所组成。在船帆上、甲板上和舱内都安有红外线传送器,当有海盗来偷袭船只时,它们就自行把声音警报器接通了,于是,汽笛、电铃和灯光报警器就发出了警报,与此同时,根据电子装置的指令,船上的水龙也一齐喷出强大的水流,迫使海盗们逃之夭夭。 Piracy has become more frequent in recent years. In order to prevent the piracy of harassment, robbery, Danish company Mari Neral Alumni to create a special electronic system. It consists of an infrared transmitter, an audible alarm, and an electronic device that connects the hose to itself. On the sails, infrared transmitters were placed on deck and in the cabin, and when pirates came to sneak in their boats they switched on the audible sirens themselves. As a result, sirens, bells, and light alarms sent out warnings, At the same time, according to the directives of the electronic devices, the water hoses on the boats were also sprayed with powerful water currents to force the pirates to flee.