The safety of vessels' waterborne operations,which is closely related to lives and property,has become the most important element in navigation.However,the land-based monitor system faces great challenges since China is a country with large maritime territory and accidents in the sea are usually unpredictable.For these reasons,the monitor system should not only provide full-time and all-weather communication channels to receive signals sent by vessels in distress,but also process the message as soon as possible.Therefore,it is necessary to build a distress and rescue information system and specify rules of message transmission to ensure the success of communication between ships and rescue center.This paper introduces the background of Distress and Rescue Information System and reviews the current status of system in distress and rescue field which can deliver distress messages to the command center accurately in less delay,it has raised the level of automation in message transmission.System can also improve the security level of message transmission process and identify responsibilities in the distress rescue task.%我国海域辽阔,各类船只的水上航行和作业安全密切关系到生命和财产的安全,需要可靠保障;由于海上险情发生的随机性和突发性,岸上险情监视力量必须全时、全天候地开设险情通信通道,接收海上遇险对象的遇险呼救信号并及时对遇险信息进行处理;因此,岸基必须建设遇险救生信息系统并规定必要的信息传输流程,保障险情报知通信的顺利完成;文章简要分析了目前海上救生的通信现状,对常用通信手段进行了分析与介绍,并提出了一种整合各通信手段的设计方法,实现了多种通信手段的综合使用以及统一调度,大幅提升险情信息的传输和处理效率,提高险情信息的保密性,为救援工作提供了精确可靠的问责手段.
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