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    • 3. 发明申请
    • Tag Anti-Collision Rfid System and Method for Tag Identification
    • 标签反碰撞Rfid系统和标签识别方法
    • US20080283600A1
    • 2008-11-20
    • US11817333
    • 2005-12-14
    • Kyung-Ho SeoSe-Hyun OhJin-Hee YoonJoo-Mun LeeWon-Jun LeeJi-Hoon Myung
    • Kyung-Ho SeoSe-Hyun OhJin-Hee YoonJoo-Mun LeeWon-Jun LeeJi-Hoon Myung
    • G06K7/00G06K17/00
    • G06K7/10049G06K7/0008
    • The present invention relates to a tag anti-collision Radio Frequency Identification (RFID) system and a method for tag identification. The method for tag identification consists of a first step of initializing a queue (Q) field and storing a prefix of a candidate queue (CQ) field in the queue field; a second step of transmitting a query including the prefix stored in the queue field to the RFID tags, and deleting the transmitted prefix from the queue field; a third step of inserting a prefix, in which prefixes 0 and 1 are inserted into a rear portion of a prefix of a previously transmitted query, into the queue field if two or more tags respond to the previously transmitted prefix and, therefore, the tags cannot be identified, and inserting the prefix of the previously transmitted query into the candidate queue field and deleting an unnecessary prefix stored in the candidate queue if there is no response or only one tag responds with respect to the previously transmitted prefix; and a fourth step of determining whether a prefix stored in the queue field exists, and returning to the second step if there is a prefix stored in the queue field.
    • 本发明涉及标签防碰撞射频识别(RFID)系统和标签识别方法。 用于标签识别的方法包括初始化队列(Q)字段并在队列字段中存储候选队列(CQ)字段的前缀的第一步骤; 将包含队列字段中存储的前缀的查询发送到RFID标签的第二步骤,以及从队列字段中删除发送的前缀; 如果两个或更多个标签响应于先前发送的前缀,并且因此标签中插入前缀0和1被插入到先前发送的查询的前缀的后部中的第三步骤, 如果没有响应或只有一个标签相对于先前发送的前缀进行响应,则不能识别先前发送的查询的前缀到候选队列字段并删除存储在候选队列中的不必要的前缀; 以及确定存储在队列字段中的前缀是否存在的第四步骤,如果存在队列字段中存在前缀,则返回到第二步。
    • 4. 发明授权
    • Tag anti-collision RFID system and method for tag identification
    • 标签防碰撞RFID系统和标签识别方法
    • US08028910B2
    • 2011-10-04
    • US11817333
    • 2005-12-14
    • Kyung-Ho SeoSe-Hyun OhJin-Hee YoonJoo-Mun LeeWon-Jun LeeJi-Hoon Myung
    • Kyung-Ho SeoSe-Hyun OhJin-Hee YoonJoo-Mun LeeWon-Jun LeeJi-Hoon Myung
    • G06K7/00
    • G06K7/10049G06K7/0008
    • The present invention relates to a tag anti-collision Radio Frequency Identification (RFID) system and a method for tag identification. The method for tag identification consists of a first step of initializing a queue (Q) field and storing a prefix of a candidate queue (CQ) field in the queue field; a second step of transmitting a query including the prefix stored in the queue field to the RFID tags, and deleting the transmitted prefix from the queue field; a third step of inserting a prefix, in which prefixes 0 and 1 are inserted into a rear portion of a prefix of a previously transmitted query, into the queue field if two or more tags respond to the previously transmitted prefix and, therefore, the tags cannot be identified, and inserting the prefix of the previously transmitted query into the candidate queue field and deleting an unnecessary prefix stored in the candidate queue if there is no response or only one tag responds with respect to the previously transmitted prefix; and a fourth step of determining whether a prefix stored in the queue field exists, and returning to the second step if there is a prefix stored in the queue field.
    • 本发明涉及标签防碰撞射频识别(RFID)系统和标签识别方法。 用于标签识别的方法包括初始化队列(Q)字段并在队列字段中存储候选队列(CQ)字段的前缀的第一步骤; 将包含队列字段中存储的前缀的查询发送到RFID标签的第二步骤,以及从队列字段中删除发送的前缀; 如果两个或更多个标签响应于先前发送的前缀,并且因此标签中插入前缀0和1被插入到先前发送的查询的前缀的后部中的第三步骤, 如果没有响应或只有一个标签相对于先前发送的前缀进行响应,则不能识别先前发送的查询的前缀到候选队列字段并删除存储在候选队列中的不必要的前缀; 以及确定存储在队列字段中的前缀是否存在的第四步骤,如果存在队列字段中存在前缀,则返回到第二步。