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首页> 外文会议>Radio Technical Commission for Maritime Services annual assembly meeting 2009 >NMEA 2000~? Past, Present and Future
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NMEA 2000~? Past, Present and Future

机译：NMEA 2000〜？过去，现在和未来

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摘要

NMEA 2000 has been created to meet a wide variety of needs. It is produced by the marine electronics industry as an Industry Open Standard. One important requirement is to provide for mission-critical data with multiple priorities. This requirement is addressed through proper application of multiple message priority levels of established by product certification. Message priorities are reflected in message identifier assignments, device classification codes, and application-dependent message priority bits. All certified NMEA 2000 devices must demonstrate the ability to adhere to NMEA 2000 requirements through automated software testing and validation. A product that passes certification testing will be capable of supporting mission-critical operations, even if that product in and of itself is not related to the mission-critical functions being conducted on the NMEA 2000 backbone. Data messages are transmitted as a series of data frames, each with robust error checking, confirmed frame delivery, and with deterministic transmission times.
机译：NMEA 2000的创建是为了满足各种各样的需求。它是由船用电子行业作为行业开放标准生产的。一个重要的要求是提供具有多个优先级的关键任务数据。通过正确应用产品认证确定的多个消息优先级，可以满足此要求。消息优先级反映在消息标识符分配，设备分类代码和与应用程序相关的消息优先级位中。所有通过NMEA 2000认证的设备都必须具有通过自动化软件测试和验证遵守NMEA 2000要求的能力。通过认证测试的产品将能够支持关键任务操作，即使该产品本身与在NMEA 2000主干网上执行的关键任务功能无关。数据消息以一系列数据帧的形式传输，每个数据帧都具有强大的错误检查功能，已确认的帧传递功能以及确定的传输时间。

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