Handheld RFID Medical Assistant System with Location-Based Service
Date Issued
2007
Date
2007
Author(s)
Hsu, Li-Shin
DOI
zh-TW
Abstract
Plenty of healthy records and data are scattered over the hospital. Healthy information may be delivered to different targets by different ways anytime and anywhere in the hospital. So, the problem of how to transmit data efficiently and increase the mobility of personnel is taken seriously. With the advancing and popularizing of mobile computing and Wi-Fi wireless network, some hospitals are trying to introduce mobile medical assistant system to improve the data transmission mechanism and patient safety. In year 2006, we cooperated with Wan Fang Hospital and then developed a “Handheld RFID Medical Assistant System” for ward area. It was combined with many technologies such as mobile device, Wi-Fi, RFID, Web service to provide a mobile medical information platform to reduce the chance that personnel go back to the nurse station for medical data, high risk reminder mechanism to improve the time-wasted procedure of laboratory test, emergent RFID against disadvantages of traditional barcode identification and a combination with online pharmacopoeia to show medication safety information at bedside. We hope this system can raise the quality of healthcare.
Besides, in this research, we add a new location-aware mechanism to the original system and carry out two ideals of “location-aware data transmission” and “location-aware mobile database” to reduce the risk of remote data accessing delay when using mobile device. The location-aware database in mobile device lunches location-aware data transmission process periodically to synchronize local-area data with back-end hospital information database according to the estimated location itself. In the ideal condition, personnel can access the local data from the location-aware database in their mobile instead of the time-consumed remote communication with back-end database. According to our experiment result, the new mechanism makes an improvement of 64% in data transmission time.
However, we need an indoor position system to provide estimated location to the location-aware service module. A handheld Wi-Fi location system which follows the fingerprinting algorithm is also proposed in this research. According to the result of our indoor positioning experiments, we have an average error about 2 meters and nearly 90% correctness of region identification. With the help of this position system, we can also locate the online mobile device in the hospital and help personnel to get over the inconvenient for mobile device management.
Finally, we list six case studies of other proposed mobile medical systems and make a comparison with ours. According to the comparison, our system has better location-aware and high risk reminding mechanism than other system in Taiwan. But the integration with medical order and operation information of our system are weaker and we will take these weaknesses as future works. Besides, by the comparison with those in other countries, we find that their location-aware services are better than ours in quality and degree of integration. So we will also continuously improve our location-aware service and make a stronger combination between front-end and back-end systems.
Subjects
RFID
Web Service
行動
醫療
Wi-Fi
定位
位置感知
Mobile
Healthcare
Position
Location-aware
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-96-R94922095-1.pdf
Size
23.31 KB
Format
Adobe PDF
Checksum
(MD5):8281d602d6e6f02a2139111e6b3cc3c1