針對煤礦安全監(jiān)測監(jiān)控系統(tǒng)中CAN 現(xiàn)場總線與以太網(wǎng)互聯(lián)的需求,采用32 位RISC ARM
處理器，設(shè)計(jì)了CAN-Ethernet 嵌入式接入網(wǎng)關(guān)，運(yùn)行在Linux 嵌入式實(shí)時(shí)操作系統(tǒng)上。詳
細(xì)介紹了網(wǎng)關(guān)的硬件與軟件設(shè)計(jì)方案，實(shí)現(xiàn)了CAN 總線與以太網(wǎng)的無縫連接。經(jīng)現(xiàn)場應(yīng)用驗(yàn)證，該網(wǎng)關(guān)較好地完成了兩種網(wǎng)絡(luò)之間的協(xié)議轉(zhuǎn)換和數(shù)據(jù)通信。
關(guān)鍵詞: CAN； 以太網(wǎng)； 網(wǎng)關(guān)； 消息隊(duì)列
Abstract: Due to the requirement of the connection of CAN-bus and Ethernet in coal mine security monitoring system, a CAN-Ethernet gateway is designed on the embedded real-time operating system for Linux, using 32 bit RISC ARM processor. The design of hardware and software of the gateway is particularized and the seamless connection of CAN-bus and Ethernet is realized. Fieldwork results show that the device, featuring with redundant capability, can complete the data transmission between CAN-bus and Ethernet.
Key words: CAN; Ethernet; Gateway; Message queue