Lin Chung-Chih, Chiu Ming-Jang, Hsiao Chin-Chieh, Lee Ren-Guey, Tsai Yuh-Show
Department of Computer Science and Information Engineering, Chang Gung University, Tao-Yuan 333, Taiwan, ROC.
IEEE Trans Inf Technol Biomed. 2006 Oct;10(4):696-704. doi: 10.1109/titb.2006.874196.
The purpose of this paper is to integrate the technologies of radio frequency identification, global positioning system, global system for mobile communications, and geographic information system (GIS) to construct a stray prevention system for elderly persons suffering from dementia without interfering with their activities of daily livings. We also aim to improve the passive and manpowered way of searching the missing patient with the help of the information technology. Our system provides four monitoring schemes, including indoor residence monitoring, outdoor activity area monitoring, emergency rescue, and remote monitoring modes, and we have developed a service platform to implement these monitoring schemes. The platform consists of a web service server, a database server, a message controller server, and a health-GIS (H-GIS) server. Family members or volunteer workers can identify the real-time positions of missing elderly using mobile phone, PDA, Notebook PC, and various mobile devices through the service platform. System performance and reliability is analyzed. Experiments performed on four different time slots, from three locations, through three mobile telecommunication companies show that the overall transaction time is 34 s and the average deviation of the geographical location is about 8 m. A questionnaire surveyed by 11 users show that eight users are satisfied with the system stability and 10 users would like to carry the locating device themselves, or recommend it to their family members.
本文的目的是整合射频识别、全球定位系统、全球移动通信系统和地理信息系统（GIS）等技术，构建一个针对患有痴呆症老年人的防走失系统，且不干扰他们的日常生活活动。我们还旨在借助信息技术改进寻找失踪患者的被动和人力方式。我们的系统提供四种监测方案，包括室内居住监测、室外活动区域监测、紧急救援和远程监测模式，并且我们开发了一个服务平台来实施这些监测方案。该平台由一个网络服务服务器、一个数据库服务器、一个消息控制器服务器和一个健康地理信息系统（H-GIS）服务器组成。家庭成员或志愿者工作人员可以通过服务平台使用手机、个人数字助理、笔记本电脑和各种移动设备识别失踪老年人的实时位置。分析了系统性能和可靠性。在三个地点通过三家移动电信公司在四个不同时间段进行的实验表明，总体交易时间为34秒，地理位置的平均偏差约为8米。由11名用户进行的问卷调查显示，8名用户对系统稳定性满意，10名用户愿意自己携带定位设备，或推荐给家人。
