A Smart Electronic Tagging System Based on Context Awareness and Machine-to-Machine Interworking by Gil-Yong Lee, Nam-Yeol Yun, Sung-Chul Lee, Soo-Hyun Park

“…The acquired location information is used to prevent the offenders from perpetrating repeat crimes. However, the battery resources of such a system are inadequate as it has to trace the location of the moving target in real time and consumes a large amount of battery power while communicating with GPS satellites and mobile phone base stations. …”
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