摘要
提出了一种改进的应用于园林导游系统的户内户外混合定位技术。户外采用相对插值的方法来提高GPS定位精度;户内及GPS信号不好时,采用基于RSSI的三角形外心定位技术保证位置信息服务的及时性。实验表明,该技术平均定位精度可达5m以内,能够较好地满足园林导游的定位需求。
In this paper, we propose an improved positioning technology which combines indoor and outdoor positioning technologies for garden tour guiding system. The outdoor positioning technology adopts the method of relative interpolation to improve GPS positioning accuracy; while in the case of outdoor positioning and when the GPS signal is not strong enough, the RSSI-based positioning technology by the triangle＇ s circumcenter is put in use to ensure that the location information service is in time. Experiments show that, with this technology, the positioning accuracy can reach less than 5 meters in average, which can better meet the positioning demands of garden tour guiding system.
出处
《苏州大学学报（工科版）》
CAS
2010年第3期5-8,共4页
Journal of Soochow University Engineering Science Edition (Bimonthly)
基金
国家教育科研重点项目(编号205059)
江苏省高技术研究计划基金资助项目(编号BG2005019)
