Design of multi-channel ad conversion and remote monitoring system based on ARM9 and GSM

This paper chose Samsung´s S3C2440A as the core processing chip, achieved the purpose of multi-channel analog quantity acquisition, conversion, transmission and monitoring based on embedded technology and Global System for Mobile Communication (GSM) technology. The design adopts S3C2440A to control all the modules of the system and process the information under the embedded Linux operating system. The supervisor sends commands to the system via cell phone message. The system will read the cell phone message, after the GSM module received one. If the content of the cell phone message is the command which has been defined, the system will transfer all the analog to digital (AD) conversion data to the designated phone via cell phone message. In this way, the system achieved the purpose of real time remote monitoring.