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81.
该文在动态二进制搜索算法的基础上提出了一种新的防碰撞算法,该算法充分利用已得到的冲突信息,有效减小判断过程中数据的传输量。通过对新算法的分析,可知本算法相对于动态二进制搜索算法有明显的优势。 相似文献
82.
使用高度集成的射频芯片R1000代替大量分立元件,来完成整个射频电路的询问、接收和中频接收机的设计。该设计极大地简化了系统,提高了系统的性能和稳定性;同时增加了外部PA设计,从而大大增加了读写器的读写距离。 相似文献
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Tomás Sánchez LópezAuthor Vitae 《Computer Standards & Interfaces》2011,33(3):207-213
In the last few years, the standards development community has seen an increasing interest in the link between sensor and RFID standards. Standardization bodies such as the ISO/IEC and the IEEE are developing new specifications or updating their existing ones to reflect this interest. During this process, collaborations that span throughout several standardization documents and bodies have emerged in order to avoid the duplication of efforts and to speed up the standardization process. In the ever complex standardization world, this interconnection of standards makes the current status of the process difficult to understand, specially when most of the documents are still in development and constantly being updated. In this paper, we aim to provide a clearer view of the state of the sensor and RFID integration standardization activities, highlighting the collaboration among standardization bodies and discussing how these standardization processes are likely to evolve. 相似文献
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Due to the potential wide deployment of Radio Frequency Identification (RFID), the security of RFID systems has drawn extensive attention from both academia and industry, and the RFID authentication protocol is an important mechanism in the security of RFID systems. The desired security requirements of RFID authentication protocols include privacy, integrity, authentication, anonymity/untraceability, and even availability. To design an efficient protocol that satisfies all the requirements with limited resources is a challenge. This paper proposes a new RFID authentication protocol based on Error Correction Codes (ECC). The proposed scheme has excellent performance in terms of security, efficiency, server’s maintenance, robustness, and cost. The tag only performs simple operations, such as random number generation and simple bitwise computations. The lightweight feature makes it attractive to those low-cost RFIDs that support only simple operations. 相似文献
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Radio frequency Identification (RFID) systems are used to identify remote objects equipped with RFID tags by wireless scanning without manual intervention. Recently, EPCglobal proposed the Electronic Product Code (EPC) that is a coding scheme considered to be a possible successor to bar-code with added functionalities. In RFID-based applications where RFID tags are used to identify and track tagged objects, an RFID tag emits its EPC in plaintext. This makes the tag inevitably vulnerable to cloning attacks as well as information leakage and password disclosure. In this paper, we propose a novel anti-cloning method in accordance with the EPCglobal Class-1 Generation-2 (C1G2) standard. Our method only uses functions that can be supported by the standard and abides by the communication flow of the standard. The method is also secure against threats such as information leakage and password disclosure. 相似文献
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智能化轮胎监控技术能收集并且传输轮胎压力、温度、受力变形等轮胎信息参数.对这些信息进行分析、作出正确判断和处理,能够提高汽车行驶安全性、降低油耗.国内外各大厂商和研究机构研究开发了各种智能化轮胎监控系统.根据已发表的文献资料,介绍了国内外智能化轮胎监控技术的部分研究成果,并预计了其市场前景和发展趋势. 相似文献
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