整合GPRS/GPS應用於田間車輛行走路徑資料傳輸之基礎研究

Basic Study on Real Time Data Transmission of Moving Traces for Off-Road Vehicles Using GPRS/GPS Technologies

林彥志(Yan-Zhi Lin)

指導教授 ： 葉仲基

國立臺灣大學/生物資源暨農學院/生物產業機電工程學研究所/碩士(2006年)

https://doi.org/10.6342/NTU.2006.02812

摘要

摘要
本研究將GPS精確的定位能力與GPRS無線傳輸功能做結合，建立一個可以提供遠端監控作業系統，能在第一時間將GPS接收到的定位資訊，透過GPRS整合封包無線電服務即時傳回監控站。
本文利用GPS接收器與GPRS通訊模組，進行軌跡定位測試。測試範圍為台灣大學校園內，進行了步行和騎乘單車測試，藉以模擬田間車輛之行走，經由無線傳輸功能，在遠端監控站即時觀測行進之路線，當行進路線有偏差時，亦可從監控站傳送信號透過警報器來告知並加以修正。
吾人用此系統所做的測試結果，在直線測試中，所得的定位精準度都是相當高的，最大誤差僅在3公尺內。至於繞圈測試中，當行經至轉彎處時，有些路段會出現較大偏移，但最大誤差可在15公尺內，大致上來說還在可接受的範圍內。然而有些路段的轉彎處卻不會出現偏移現象。行經轉彎處的定位誤差，是吾人日後必須考量分析的重點。
本研究改良了本實驗室先前所開發的GPS/GSM遠端監視系統，可大幅提升資料傳輸速度與降低通訊成本。

關鍵詞:全球衛星定位系統(GPS)、數位行動電話(GSM)、整合封包無
線電服務(GPRS)。

關鍵字

全球衛星定位系統(GPS) ； 數位行動電話(GSM) ； 整合封包無線電服務(GPRS)

並列摘要

Abstract
With the advance of technology and rapid development of mobile communications, the use of GPS (Global Positioning System) has been quickly transformed from its former military purposes and guidance for ships, to a wide number of applications in modern daily life. In the aspect of communications, the mobile data service has innovated from the earlier radio BB Call, to GSM (Global System for Mobile Basic), leading to the development of GPRS (General Packet Radio Service) to give us today’s Third Generation communication skills.

This research aims to combine the exact positioning ability of GPS with the function of wireless transmission of GPRS, and to build up an operating system for far remote monitoring. This GPS system can receive the positioning information at the first time and immediately transmit it to the monitoring station through GPRS.
We use a GPS receiver and a GPRS module of the communication to test the moving tracks. The test area is inside NTU (National Taiwan University) campus. The two methods of experiment are by foot and bicycle. The local monitoring station can observe the moving tracks by wireless transmission. If the course of moving deviated from the preset one, we can transmit signals to correct the errors from the monitoring station in time.

Results show that positioning precision is rather high from the straight road test while using this set of system. The biggest inaccuracy is within 3 meters. As for winding road testing, the result sometimes be departed during turning. The biggest inaccuracy is within 15 meters. Basically these are all acceptable ranges. Yet, not all turnings have the phenomenon of departure. Therefore the positioning inaccuracy in the turnings is the focal point in future.

This study has improved the traditional remote monitoring system with GPS/GSM. Our system can increase the transmission speed of data and reduce the communication cost.

Keywords: GPS、GSM、GPRS

並列關鍵字

GPS ； GSM ； GPRS

參考文獻

2.卓奕全。2005。GPS/GSM整合應用於農用車輛行走軌跡遠端監視系統之初步研究。碩士論文。國立台灣大學生物產業機電工程學研究所。

3.涂志仁。2005。衛星導航應用在農用車輛轉向系統之初步研究。碩士論文。國立台灣大學生物產業機電工程學研究所。

1.何宗哲。2004。利用GPRS無線通訊作為UAV之雙向資料傳輸介面。碩士論文。國立成功大學航空太空工程學研究所。

4.張仲良。2004。GPS 頻段內干擾抑制訊號處理研究。碩士論文。國立成功大學電機工程學研究所。

8.Cai, Jain and David J. Goodman. 1997. General Packet Radio Service in GSM. IEEE Communications Magazine 35(10):122-131.