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Development of Falling-sensing Terminals and a System with Relay Function
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 Title & Authors
Development of Falling-sensing Terminals and a System with Relay Function
Jang, Duk-Sung;
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 Abstract
Several falling-sensing terminals have been developed which are able to detect the fall/upset accident of the elderly and transmit the collapsing signals to the administrative server via RF communication using 400MHz bandwidth. Supposing there might be no communication problem within a sanatorium, just single terminal without relay function had been made as a prototype in the first stage of development. However some communication problems have discovered at the coner of the floor apart from the other floor diagonally in the same building. Same kind of problems have been happened in the area behind a steel fence or a car. To solve these kinds of communication problems, we have developed several terminals and added up relay function to them. In this paper we represented that the success ratio of the communication has been improved by using relay function among several terminals.
 Keywords
Falling-sensing Terminals;RF communication;Transmission problem;Broadcasts;
 Language
Korean
 Cited by
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