@article{oai:u-ryukyu.repo.nii.ac.jp:02015670,
 author = {鹿内, 健志 and 官, 森林 and 名嘉村, 盛和 and 南, 孝幸 and 上野, 正実 and 赤地, 徹 and 玉城, 麿 and Shikanai, Takeshi and Guan, Senlin and Nakamura, Morikazu and Minami, Takayuki and Ueno, Masami and Akachi, Toru and Tamaki, Maro},
 issue = {1},
 journal = {沖縄農業},
 month = {Mar},
 note = {In order to improve the sugarcane yield and encourage stable management, agricultural production corporations are required to manage their work systematically and efficiently. Therefore, it is necessary to accurately comprehend the work that goes in the agricultural production corporations for the rational planning of farming operations. This study is aimed at developing a system for recording farming data with a cellular phone equipped with a GPS (Global Positioning System) function and an Internet connection. The built-in GPS function is used to produce a field map of the measured position to indicate the location of the operator. The data entered from the cellular phone are transferred to and stored on the server of the system via the Internet. The results of experiments conducted by the sugarcane-producing agricultural corporations revealed that the precision of the GPS function of the cellular phone was sufficient to identify the current working field. Using a cellular phone, a set of recorded farming data can be input in 1-2 minutes. The system is developed using low-cost hardware and software, and it has a low operating cost. This system can collect the necessary farming data such as the date, weather, working time, composition of work, and machines used in the field. Furthermore, by adopting database technology in this system, large quantities of data of the farmland that are scattered over a wide zone could be handled efficiently., 論文},
 pages = {19--25},
 title = {GPS携帯電話の用いたサトウキビ生産法人の農作業データ管理システムの開発},
 volume = {40},
 year = {2007}
}