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As the function of intelligent equipment business gradually expanded, the user of the control system of intelligent real-time demand more and more high, the current control system adopting CAN technology realizes the intelligent devices and communication between the user and cannot meet the needs of users on the system real-time performance.Put forward a new Internet embedded intelligent equipment real-time control system, through the overall framework of building systems, embedded LPC2378 ARM processor as the core processor, through the RS - 485 bus to intelligent devices together, constitute a bus transmission network as the processor, the embedded LPC2378 ARM processor, will take 10/100 of the DMA m Ethernet module and Ethernet PHY chip DP83848I connection, in order to improve the transmission efficiency of data packets, enhance the system real-time performance.Choose SIM300CZ module system, GPRS module, remote alarm module and RS - 485 bus together, realizing the remote alarm and control functions.Software design, gives the overall software architecture and the overall flow chart, part of the store code are introduced.The experimental result shows that the design system of intelligent equipment has a high control performance.