移動測繪系統已經成功的運用在道路財產目錄的編制上。但目前的移動測繪系統都非常昂貴，主要是因為系統中的慣性導航系統、多組的CCD 晶片或是雷射掃瞄儀。再加上影像資料的處理是移動測繪系統的瓶頸，本研究以雷射測距儀取代多組的CCD晶片或是雷射掃瞄儀以整合出更經濟的移動測繪系統。

　　本研究整合的新系統除了整合GPS與INS的資訊，來提供車子的定位及姿態的訊息，也包含一數位攝影機。本系統可以監控車子外部的情況，並對目標物進行照相。此外，本系統將GPS與電子地圖相結合，來做及時的汽車導航。本研究整合的新系統所得之定位精度，誤差大約為1公尺。與目前的MMS相比較，準確度已經算是相當不錯。就整套系統的價格與性能而言，本系統可說是相當經濟實用。

　　The mobile mapping system (MMS) has been used successfully in road inventory for many years. The price of current MMS is relative high mainly due to high cost components in the system (e.g. INS, large CCD chips, or laser scanner). In addition, image data processing is the bottleneck for MMS. This research intends to replace the CCD chips or laser scanner with a cheaper laser measurement unit to build up a new cost-effective system.

　　The new system is supplemented by a CCD camera in addition to GPS and INS, which is used for position and attitude information. The system is applied to monitor the surroundings out of the car and taking pictures of the aimed object in this research. Besides, the system combines the GPS information with a digital map to implement real time car navigation. The overall positioning error of the new system used in this study is around one meter. Comparing with current MMS, the accuracy is still good enough. Considering the price and the functions of the system, the system is economical and useful.

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