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Introduction to GPS The Global Positioning System - Part 10

GPS Applications 10 GPS đã sẵn sàng cho sử dụng dân sự và quân sự trong hơn hai thập kỷ qua. Đó là khoảng thời gian đã chứng kiến sự sáng tạo của rất nhiều các ứng dụng GPS. Bởi vì nó cung cấp chính xác vị trí cao một cách costeffective, GPS đã tìm thấy đường vào nhiều ứng dụng công nghiệp, thay thế phương pháp truyền thống trong nhiều trường hợp. Ví dụ, với GPS, máy móc có thể được tự động hướng dẫn và kiểm soát. Điều này đặc biệt hữu ích trong khu vực nguy hiểm, nơi mà. | 10 GPS Applications GPS has been available for civil and military use for more than two decades. That period of time has witnessed the creation of numerous new GPS applications. Because it provides high-accuracy positioning in a costeffective manner GPS has found its way into many industrial applications replacing conventional methods in most cases. For example with GPS machineries can be automatically guided and controlled. This is especially useful in hazardous areas where human lives are endangered. Even some species of birds are benefiting from GPS technology as they are being monitored with GPS during their immigration season. This way help can be presented as needed. This chapter describes how GPS is being used in land marine and airborne applications. 10.1 GPS for the utilities industry Accurate and up-to-date maps of utilities are essential for utility companies. The availability of such maps helps electric gas and water utility companies to plan build and maintain their assets. 129 130 Introduction to GPS The GPS GIS system provides a cost-effective efficient and accurate tool for creating utility maps. With the help of GPS locations of features such as gas lines can be accurately collected along with their attributes such as their conditions and whether or not a repair is needed . The collected information can then be used by a GIS system to create updated utility maps. In situations of poor GPS reception such as in urban canyons it might be useful to use integrated GPS and LRF systems 1 . This integrated system is an efficient tool for rapid utility mapping. A GPS receiver remains in the open for the best signal reception while the LRF measures the offset information range and azimuth to the utility assets such as light poles see Figure 10.1 . The processing software should be able to combine both the GPS and the LRF information. Buried utilities such as electric cables or water pipes can also be mapped efficiently using GPS Figure 10.1 . With the help .