(window.webpackJsonp=window.webpackJsonp||[]).push([[353],{666:function(t,e,a){"use strict";a.r(e);var _=a(10),v=Object(_.a)({},(function(){var t=this,e=t._self._c;return e("ContentSlotsDistributor",{attrs:{"slot-key":t.$parent.slotKey}},[e("h1",{attrs:{id:"nmea2000"}},[e("a",{staticClass:"header-anchor",attrs:{href:"#nmea2000"}},[t._v("#")]),t._v(" NMEA2000")]),t._v(" "),e("p",[e("strong",[t._v("FDI_NMEA2000_接口用户使用手册")])]),t._v(" "),e("fdi-img",{attrs:{width:"80%",alt:"IMU",src:"/developers/03-fdilinksdk/NMEA2000/图片26.png",caption:""}}),t._v(" "),e("h2",{attrs:{id:"_1-简介"}},[e("a",{staticClass:"header-anchor",attrs:{href:"#_1-简介"}},[t._v("#")]),t._v(" 1. "),e("strong",[t._v("简介")])]),t._v(" "),e("p",[t._v("NMEA 2000是一种用于船舶和航海设备之间的数据通信的标准化接口协议。它通过串行通信传输船舶相关信息，如位置、速度和状态等。NMEA 2000广泛应用于船舶领域，实现了各种设备的互联和数据共享。我司的产品强调兼容国际NMEA 2000协议，确保与全球范围内的NMEA 2000设备和系统的互操作性。这意味着我们的产品可以轻松集成到各种船舶和海洋应用中，为用户提供可靠、高效的数据通信解决方案。")]),t._v(" "),e("p"),t._v(" "),e("fdi-img",{attrs:{width:"100%",alt:"IMU",src:"/developers/03-fdilinksdk/NMEA2000/图片27.png",caption:""}}),t._v(" "),e("p"),t._v(" "),e("p"),t._v(" "),e("p"),t._v(" "),e("h2",{attrs:{id:"_2-知识储备"}},[e("a",{staticClass:"header-anchor",attrs:{href:"#_2-知识储备"}},[t._v("#")]),t._v(" 2. "),e("strong",[t._v("知识储备")])]),t._v(" "),e("h3",{attrs:{id:"_1-什么是nmea2000"}},[e("a",{staticClass:"header-anchor",attrs:{href:"#_1-什么是nmea2000"}},[t._v("#")]),t._v(" (1) 什么是NMEA2000?")]),t._v(" "),e("p",[t._v("NMEA 2000（National Marine Electronics Association 2000）是一种用于船舶和航海设备之间的数据通信标准化接口协议。它定义了一套规范，使不同制造商的船舶电子设备能够通过一个共享的网络进行通信和信息交换。NMEA 2000协议采用了控制器-设备（Master-Device）的架构，通过CAN（Controller Area Network）总线进行数据传输。这种协议支持全双工通信，可以在同一总线上连接多达250个设备，包括GPS、雷达、声纳、自动驾驶系统等。")]),t._v(" "),e("p"),t._v(" "),e("h3",{attrs:{id:"_2-什么是pgn-pgn与canid的关系是什么"}},[e("a",{staticClass:"header-anchor",attrs:{href:"#_2-什么是pgn-pgn与canid的关系是什么"}},[t._v("#")]),t._v(" (2) 什么是PGN ? 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从Packet_1的Byte[0]向Packet_2中Byte[0]的数据依次从0开始增加作为数据包序号判定。")]),t._v(" "),e("p",[t._v("③ 其余数据为实际有效载荷，空余字节填充0xFF.")]),t._v(" "),e("h2",{attrs:{id:"_3-使用方法"}},[e("a",{staticClass:"header-anchor",attrs:{href:"#_3-使用方法"}},[t._v("#")]),t._v(" 3. 使用方法")]),t._v(" "),e("h3",{attrs:{id:"_0-地面站配置"}},[e("a",{staticClass:"header-anchor",attrs:{href:"#_0-地面站配置"}},[t._v("#")]),t._v(" (0) 地面站配置")]),t._v(" "),e("p",[t._v("① 由于我司产品的CAN总线上允许挂载多种基于CAN硬件的通信协议，所有如果需要使用特定的NMEA2000协议通过CAN总线输出，则需要通过上位机配置，保存重启后对应COM口功能生效。")]),t._v(" "),e("fdi-img",{attrs:{width:"100%",alt:"IMU",src:"/developers/03-fdilinksdk/NMEA2000/图片29.png",caption:""}}),t._v(" "),e("p"),t._v(" "),e("h3",{attrs:{id:"_1-mcu单片机can总线接收"}},[e("a",{staticClass:"header-anchor",attrs:{href:"#_1-mcu单片机can总线接收"}},[t._v("#")]),t._v(" (1) MCU单片机CAN总线接收")]),t._v(" "),e("p",[t._v("①用户可以通过我司提供的通信协议，以获得对应数据包的CANID,以及数据包具体内容进行总线数据获取和解码。注意此处CANID在总线上的发布方式为拓展帧模式。")]),t._v(" "),e("p"),t._v(" 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