隨著科技的進展快速，感測器在各領域的應用已是十分廣泛。業界或政府相關機構已有將感測器結合無線技術運用在各個層面。但現行的相關運用均著重感測器運用無線技術或網際網路傳送到伺服器端，長期的蒐集資料與分析。本研究基於以節省設備成本以及行動通訊基地台涵蓋率廣的觀點，實作一GPRS網路上之感測器偵測自動回報系統模擬。
GPRS網路上之感測器偵測自動回報系統模擬包含兩大部分：一為內建GPRS通訊功能的行動裝置，另一為感測器、伺服器裝置。行動裝置可藉由GPRS或是IEEE 802.11協定的無線網路連接上感測伺服器進行查詢、控制的需求；而感測伺服器除進行監測感測器狀態外，尚可設定感測器警戒值。對於達到警戒值的感測資訊，可利用簡訊方式自動回傳報告。
本研究實作一停車場管理系統模擬感測器偵測自動回報機制。此管理系統提供使用者以行動裝置預約、查詢停車資訊。在感測伺服器的模擬方面，採用光線感測器模擬感測停車格是否有車輛。並將感測狀態適時回報給使用者或系統管理者。此機制優點為：1. 使用範圍廣泛，2. 節省建置、維護與連線費用，3. 雙向互動的機制。
Nowadays, sensors are widely applied in many fields. Industries and government institutes have combined sensors with wireless technology applied in many areas. Most of related researches emphasized that the sensor collects and analyzes long-term data, then transfers results to servers through wireless access or Internet. However, in terms of saving the cost and base station system(BSS) coverage, this paper presents a simulation of auto report system of sensor detection over GPRS network.
This study implements a management system of parking lots to simulate the sensor, detects and reports automatically. The management system enables users to reserve the parking spaces and ask for information by mobile devices. To simulation sensors, the study used light sensors to detect if parking spaces are occupied, and the reports are sent to users or system managers. This mechanism has three benefits: (1) it can be applied in many areas, (2) it helps save the cost of deployment, maintenance and setting connection, and (3) provide interactive mechanisms.
