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Our research group has developed the tracking method of regional myocardium from ultrasonic radio frequency (RF) signal. The tracking method employs a hierarchical correlation method. In addition, we regarded the correlation coefficient as the confidence coefficient. If it is not high, the tracking position is corrected by neighbor points. The tracking method can detect the movement of myocardium...
This system proposes ubiquitous card service which is to give us the unique personalized information in UCity( Ubiquitous City). The user have to submit the personal information(considered one's intellectual powers, concerns, and age etc.) in U-Card(Secure Smart Card with PKI and RF tag) with secure channel to the information servers, and the user acquired the unique information that is created by...
The location awareness system is an essential factor for the development of low cost sensor networks for use in the smart home environments and ubiquitous networking. This paper addresses the problem of tracking a moving intelligent robot using the pharos indoor location system. Our motivating applications include intelligent robot navigation, where location sensors provide position information to...
It has been estimated that 'RFID' technology would be playing an important role in the incoming ubiquitous environment. For this reason, many studies on 'RFID' have been conducted and its application has been on the increase in various fields such as finance, medicine, transportation and culture as well as in logistics distribution. However, the communication between Tag and Reader in RFID system...
RFID tag carries vital information in their operation and thus concerns on privacy and security issues do arise. The problem of traceability is critical in open radio frequency environments. An adversary can trace and interact with tag and this is referred as tracking. Nevertheless, with a strong authentication mechanism, uprising security problems in RFID systems can be solved. We had demonstrated...
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