Introduction - If you have any usage issues, please Google them yourself
In this paper, the current use of GSM wireless data communication needs, the design of the GSM wireless data transmission system terminals. The use of increasingly sophisticated wireless communications network established by the data channel to the short message data transmission as a way to develop a GSM-SMS-based intelligent wireless alarm system. The system is effective to overcome the distance limitations alarm, wireless communications network to cover the local region are valid alarm. In addition, interactive text messaging system to achieve the ultra-distance remote control function.