Design of embedded remote control system

In the recent years, the Global System for Mobile Communications (GSM) based short message service (SMS) and the ARM (advanced RISC machine) processors based embedded systems have been widely used in the industry applications. Based on the ARM embedded system and the GSM modem, an embedded remote control system has been designed in this paper to monitor the remote machine and send automatically the messages to the supervisor. The text message may involve the alphabetic / numeric data and the Chinese word, therefore a conversion function from text message to Unicode and ASCII code is offered in the proposed embedded system. Moreover, the text message of the embedded system can be saved in an USB interface based memory device, therefore, the content of the message can be very easy to update.