CAJ | 학술논문

从海量射频识别（RFID）标签数据中滤除冗余标签信息成为RFID应用中亟需解决的问题。读滤波方法标签数据源数量大，滤波效率较低。基于阅读器读滤波算法及空中接口标签群管理方法，提出利用几何方法的空中接口滤波算法；结合读滤波及空中接口滤波算法，提出一种新的RFID系统滤波方法。利用查询概率模型及滤波时间测试方法，对所提出滤波方法进行仿真测试。测试结果表明，相较于读滤波方法，该方法滤波效率提高了50%。
종해량사빈식별（RFID）표첨수거중려제용여표첨신식성위RFID응용중극수해결적문제。독려파방법표첨수거원수량대，려파효솔교저。기우열독기독려파산법급공중접구표첨군관리방법，제출이용궤하방법적공중접구려파산법；결합독려파급공중접구려파산법，제출일충신적RFID계통려파방법。이용사순개솔모형급려파시간측시방법，대소제출려파방법진행방진측시。측시결과표명，상교우독려파방법，해방법려파효솔제고료50%。
It is critical to filter out the unnecessary ID data because of the huge volumes of RFID data in practical application requirements. The data source of traditional reader-filter method is extensive, which reduces system filtering efficiency. Based on the methods of reader-filter and RFID tag population management in air-protocol, a geometrical filtering algorithm for air-protocol is derived. Combining with the traditional reader-filter, a complete system filtering method is presented. Utilizing the probabilistic model of inventory operation and the means of analytical filtering time measurement, the perfor-mance of the method proposed is evaluated. The simulation results show that the novel system filtering method reduces the overall filtering time by almost 50%compared to the reader-filer technique.