说明：  提出一种智能家庭网关与信息家电之间的串口通讯方案,设计一套基于RS - 232的 串口通讯协议。方法　针对嵌入式系统在智能家居系统中的应用特点,参考电子控制领域通用的 Modbus协议,并用C语言编制相应的串口通讯软件。
(An intelligent home gateway and the information appliances of the serial communication between the program, design a set based on the RS- 232 serial communication protocol. Methods for embedded system in the Intelligent home system characteristics, refer to the field of electronically controlled common Modbus protocol, and C language prepare the corresponding serial port communication software.)