The Information Interactive Mode in Supervision and Enforcement of Land and Resources Based on SMS

摘要

Personal Digital Assistant (PDA) has been widely used in land resources supervision and enforcement works as handheld terminal of embedded in land resources supervision and enforcement system. As the function of embedded system improved continuously in land resources supervision and enforcement works, it put forward higher requirements for the real-time security of exchange information between PDA and center-side. In this paper, we exploited mobile-SMS module function of embedded devices to ensure realtime security during the information exchange. This method ensured the information uploaded in situ and real-time, and completely physical isolation when data uploads and downloads. It provided a technical reference for the field investigation and laboratory systems real-time data transmission.