@article{oai:ipsj.ixsq.nii.ac.jp:00169476, author = {中川, 智尋 and 太田, 賢 and 稲村, 浩 and 鈴木, 誠 and 森川, 博之 and Tomohiro, Nakagawa and Ken, Ohta and Hiroshi, Inamura and Makoto, Suzuki and Hiroyuki, Morikawa}, issue = {7}, journal = {情報処理学会論文誌}, month = {Jul}, note = {本論文では,ジオフェンシングに適用できる省電力測位技術を統合するために必要となる測位特性を考慮したハイブリッド測位方式を提案する.既存の省電力測位技術である移動検出技術,測位間隔調整技術,ハイブリッド測位技術は互いに相補的であり,組み合わせることで省電力効果を高めることが期待できる.一方で,ハイブリッド測位技術が利用する基地局測位やWi-Fi測位等のネットワーク測位は地理的な解像度が低く,測位結果が連続的に同一地点を示すことが頻発する.このような誤推定の空間的局所性は,移動検出技術の精度に影響を与える.本論文では,この影響を除去するため,ネットワーク測位において同一地点の測位結果が継続した場合に,測位手段をGPSに切り替える方式を提案する.これにより,入圏の検出性能の劣化を防ぎつつ,省電力測位技術の組合せによる消費電力の削減効果が得られる.提案方式をAndroidベースのスマートフォンに実装し,提案方式が省電力化と入圏検出精度を両立できることを示す., We propose a positioning feature-aware hybrid positioning method, which is essential to realize energy-efficient geofencing by integrating existing energy-efficient positioning technologies. Existing energy-efficient technologies, which are composed of movement detection, variable interval positioning, and hybrid positioning, are mutually complementary in providing synergetic effect of power reduction. Meanwhile, network-based positioning which is utilized in hybrid positioning produce positioning results with only low level of geographical resolution, which often results in concentrated positioning results in one place. Such positioning feature has negative impact on accuracy of movement detection function. In this paper, in order to eliminate this impact, we propose a hybrid positioning method that switches positioning measure to GPS when network-based positioning shows dubious positioning results. We implemented the proposed method on Android-based smartphone, and confirmed through field test that the proposed method realizes energy-efficiency while maintaining entrance detection accuracy.}, pages = {1590--1600}, title = {省電力ジオフェンシングのための測位特性を考慮したハイブリッド測位方式}, volume = {57}, year = {2016} }