Uncertainty Issues in Integrating Geographic Information Systems and the Global Positioning System for Transportation

Author(s):  
Sungchul Hong ◽  
Alan P. Vonderohe
2000 ◽  
Vol 80 (3) ◽  
pp. 405-413 ◽  
Author(s):  
L.W. Turner ◽  
M.C. Udal ◽  
B. T. Larson ◽  
S.A. Shearer

Precision agriculture is already being used commercially to improve variability management in row crop agriculture. In the same way, understanding how spatial and temporal variability of animal, forage, soil and landscape features affect grazing behavior and forage utilization provides potential to modify pasture management, improve efficiency of utilization, and maximize profits. Recent advances in global positioning system (GPS) technology have allowed the development of lightweight GPS collar receivers suitable for monitoring animal position at 5-min intervals. The GPS data can be imported into a geographic information system (GIS) to assess animal behavior characteristics and pasture utilization. This paper describes application and use of GPS technology on intensively managed beef cattle, and implications for livestock behavior and management research on pasture. Key words: Livestock behavior, electronics, grazing, forage, global positioning system, geographic information system


1996 ◽  
Vol 49 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Helen Petrie ◽  
Valerie Johnson ◽  
Thomas Strothotte ◽  
Andreas Raab ◽  
Steffi Fritz ◽  
...  

This paper presents the research for the development of a new travel aid to increase the independent mobility of blind and elderly travellers. This aid will build on the technologies of geographical information systems (GIS) and the Global Positioning System (GPS). The MOBIC Travel Aid (MOTA) consists of two interrelated components: the MOBIC Pre-journey System (MOPS) to assist users in planning journeys and the MOBIC Outdoor System (MOODS) to execute these plans by providing users with orientation and navigation assistance during journeys. The MOBIC travel aid is complementary to primary mobility aids such as the long cane or guide dog. Results of a study of user requirements are presented and their implications for the initial design of the system are discussed.


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