安全可靠的監控分站設計是煤礦安全監控系統設計的關鍵。運用源碼開放、成本低、
網絡支持能力強的嵌入式Linux 操作系統，在ARM 硬件平臺上研究設計了基于CAN 總線的煤礦安全監控分站,不僅能連接監控設備完成監測和控制任務，掛接其它子系統，而且具有嵌入式網關功能，能實現CAN 和以太網的轉換。軟件設計采用多進程機制,實現了多個進程并發運行,保證了系統的安全可靠。該分站在現場應用能夠滿足要求，運行穩定。
關鍵詞：分站；CAN 總線；嵌入式系統；Linux；多進程通信
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