Wireless firmware execution control in computational RFID systems
作者： Wenyu Yang , Die Wu , Muhammad Jawad Hussain , Li Lu
DOI: 10.1109/RFID.2015.7113083
关键词: Computer hardware 、 Protocol (object-oriented programming) 、 Firmware 、 Interface (computing) 、 Microcode 、 Embedded system 、 Overhead (engineering) 、 Computer science 、 User interface 、 Common Firmware Environment 、 Efficient energy use
摘要: Current Computational RFID Tags (CRFIDs) are pre-programmed with only a single firmware instance in their flash memories for runtime operation where the functionality of CRFID is pre-determined by at time programming. As result, current CRFIDs require wired interface to re-program new which strictly limits use easy-to-reach places. We address this issue remotely changing behavior switching through commercial reader and EPC protocol, without demanding any hardware upgrades tags or modification standard. articulate design, implementation evaluation FirmSwitch — wireless scheme that equips capability during runtime. This achieved wirelessly passing encoded parameters tag leverages switch among firmwares execute them intended cycles. further employ schemes pre-defined pre-calculated CRC computational liberty energy efficiency. For concept validation, we develop User Interface between four extensively test our scheme. The results show offers minimal overhead 11.5nJ 2.037μJ, incurs delay 7.8 1498 μsec. overall, system achieves success rate 87% an interrogation range 0.5 meter.
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