基于SMS／WLAN的嵌入式Linux工控预警传输系统

摘要

以Linux嵌入式系统为载体，针对工业控制领域数据实时化预警监控系统需求．服务器端配置以GSM模块配合AT指令集，利用SMS／GSM通信系统作为高效、低数据流量、覆盖范围广等特点远程传输方案．有效避免了利用GPRS产生的高数据传输费用，对工控各项数据指标一目了然。在CS结构内部使用WLAN作为近端传输．TCP／IP技术满足数据流量的同时，使管理人员操作简便，组网更加灵活。%To meet the industrial requirements on early warning and real-time monitoring system, the server-end adopts the configuration of GSM module controlled by AT command set, which efficiently reduces the high cost by GPRS on transmission huge amount of data. Moreover, other features like large area coverage, low data generation and neat controller＇s panel of SMS/GSM makes this configuration an excellent option for long-range data transmission. For the internal communication of CS, WLAN is used as near-end connection to meet tile requirements of data flow, simple management and flexible network