安全可靠的監(jiān)控分站設(shè)計(jì)是煤礦安全監(jiān)控系統(tǒng)設(shè)計(jì)的關(guān)鍵。運(yùn)用源碼開(kāi)放、成本低、
網(wǎng)絡(luò)支持能力強(qiáng)的嵌入式Linux 操作系統(tǒng)，在ARM 硬件平臺(tái)上研究設(shè)計(jì)了基于CAN 總線(xiàn)的煤礦安全監(jiān)控分站,不僅能連接監(jiān)控設(shè)備完成監(jiān)測(cè)和控制任務(wù)，掛接其它子系統(tǒng)，而且具有嵌入式網(wǎng)關(guān)功能，能實(shí)現(xiàn)CAN 和以太網(wǎng)的轉(zhuǎn)換。軟件設(shè)計(jì)采用多進(jìn)程機(jī)制,實(shí)現(xiàn)了多個(gè)進(jìn)程并發(fā)運(yùn)行,保證了系統(tǒng)的安全可靠。該分站在現(xiàn)場(chǎng)應(yīng)用能夠滿(mǎn)足要求，運(yùn)行穩(wěn)定。
關(guān)鍵詞：分站；CAN 總線(xiàn)；嵌入式系統(tǒng)；Linux；多進(jìn)程通信
Abstract：The design of safe and credible monitoring substation is the key to the
design of coal mine safety monitoring system. The safety monitoring substation of
mine based on CAN Bus is researched and designed with ARM as a hardware-platform
using open source, low cost, strong network support of embedded Linux operating
system.It not only can connect the monitoring and control device completing the task
of monitoring and control, connect with other subsystems, but also can act as an
embedded gateway and accomplish transformation between CAN and Ethernet.The design
of software adopts the multi-process mechanism，realized multiple processes working
in parallel，guaranteed the safety and credibility of the system .It runs stably
and can meet the requirements in the field application.
Key words：substation；can bus；embedded system；linux；multi-process communication