We present a communication gateway device based on the AM335x series chips,covering hardware and software from theory to practice.The device aims to achieve the protocol conversion function.First,much front-end information of intelligent terminal equipment scattered around is collected through serial port or Ethernet port.Moreover,the collected information is processed by the device.The information will be forwarded to backend device or system by IEC104 or 61850 protocol.Finally,control commands will be sent from back-end to front-end equipment to achieve all kinds of gateway conversion function of communication information.It is proved that the device is suitable for the power system transformer substation and other intelligent building.It also can be applied to similar application system as the system of pre-communication devices.%介绍一款基于AM335x系列芯片设计的通信网关装置,包括装置硬件和软件的设计与实现.该装置目标实现规约转换功能,即通过串口或网口方式采集分散在各地的多种前端智能终端设备信息,再通过装置对采集到的信息进行处理转换,利用IEC 104或61850规约进行转出给后端设备或系统(一般为主站端,功能为面向用户的前端).同时接收后端的控制信息命令转给前端设备进行控制,实现各类通信信息的网关转换功能.该装置适应于电力系统变电站和其他智能建筑等智能应用系统,作为系统的前置通信装置,也可应用于类似的应用系统.
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