Resource allocation method for providing load balancing and fairness for dual ring

    公开(公告)号:GB2395859B

    公开(公告)日:2005-03-16

    申请号:GB0325318

    申请日:2003-10-29

    Abstract: Disclosed herein is a resource allocation method for providing load balancing and fairness for a dual ring. The resource allocation method includes the step of determining whether a bandwidth allocation request message is received from one of other nodes. If the bandwidth allocation request message is received, it is determined whether one or more of two rings of the dual ring fulfill a request of the bandwidth allocation request message. If the rings fulfill the request, a path is allocated to one of the rings having a lower weighted cost. A resource allocation information notification message is provided to other nodes. If the rings cannot fulfill the request, the process ends.

    Method of resource allocation providing load balancing and fairness in a dual ring

    公开(公告)号:GB2395859A

    公开(公告)日:2004-06-02

    申请号:GB0325318

    申请日:2003-10-29

    Abstract: In a dual ring network, a resource allocation method includes the step of determining at a network node whether a bandwidth allocation request message is received from one of the other nodes. If the request is received, it is determined whether one or more of two rings of the dual ring fulfill the request. If the rings fulfill the request, a path is allocated to one of the rings having a lower weighted cost. A resource allocation information notification message is provided to the other nodes. If the rings cannot fulfill the request, the process ends. According to an alternative resource allocation method, each of the nodes are provided with a primary and secondary transit queue (PTQ and STQ) and the allowed data rate is adjusted in dependence upon congestion and the size of backlogged packets in the STQ. The dual ring network may be a Resilient Packet Ring (RPR), SONET, Fibre Distributed Data Interface (FDDI), token ring, or the like.

    Active rfid tag and tracing method thereof
    4.
    发明公开
    Active rfid tag and tracing method thereof 审中-公开
    有源RFID标签及其跟踪方法

    公开(公告)号:KR20100096766A

    公开(公告)日:2010-09-02

    申请号:KR20090015811

    申请日:2009-02-25

    CPC classification number: H04W4/008 G06K19/0723 H04W4/025

    Abstract: PURPOSE: An active wireless frequency recognition tag and a location searching method of the same are provided to transmit the sub blink ID information corresponding to the sequence of the sub blink with the sub blink when an active tag transmits the sub blink in a RTLS(Real Time Locating Systems) system, thereby easily performing location calculation by serial arrangement of sub blinks without comparing arrival time information of the sub blink one by one in location processor engine. CONSTITUTION: A location processor engine stores ID information of tag which sent a blink signal, sub blink ID information, and arrival time information of each sub blink(S402). The engine again groups information grouped per tag ID according to each sub blink ID(S404). If the arranged sub blinks are more than three, the engine calculates the location of active tag through the arrival time information of the sub blinks(S406,S408).

    Abstract translation: 目的:当有源标签在RTLS中发送子眨眼时,提供主动的无线频率识别标签和位置搜索方法来发送与子眨眼序列相对应的子眨眼ID信息与子眨眼(实时 时间定位系统)系统,从而通过串行排列子闪烁轻松执行位置计算,而不会在位置处理器引擎中逐个比较子闪烁的到达时间信息。 构成:位置处理引擎存储发送眨眼信号的标签的ID信息,子眨眼ID信息和每个子眨眼的到达时间信息(S402)。 引擎再次根据每个子眨眼ID对每个标签ID分组信息(S404)。 如果配置的子闪烁超过三次,则发动机通过子闪烁的到达时间信息来计算活动标签的位置(S406,S408)。

    Radio frequency identification tag with automatic frequency adjusting function
    6.
    发明公开
    Radio frequency identification tag with automatic frequency adjusting function 审中-公开
    具有自动频率调节功能的无线电频率识别标签

    公开(公告)号:KR20120056591A

    公开(公告)日:2012-06-04

    申请号:KR20100118210

    申请日:2010-11-25

    Abstract: PURPOSE: An RFID tag having an automatic frequency controlling function is provided to stably supply performance of an RFID tag by automatically controlling a frequency though a signal of an RFID reader. CONSTITUTION: A frequency generating unit(240) generates a frequency and changes the size of the generated frequency according to a control signal. A frequency estimator presumes whether there is the generated frequency within a reference signal which is transmitted from an RFID reader. A comparator compares the reference value with the number of obtained clocks.

    Abstract translation: 目的:提供具有自动频率控制功能的RFID标签,以通过RFID读取器的信号自动控制频率来稳定地提供RFID标签的性能。 构成:频率发生单元(240)根据控制信号产生频率并改变所生成的频率的大小。 频率估计器假设是否存在从RFID读取器发送的参考信号内的生成频率。 比较器将参考值与获得的时钟数进行比较。

    Master tag for administration of physical distribution and method thereof
    7.
    发明公开
    Master tag for administration of physical distribution and method thereof 审中-公开
    用于管理物理分布的主标签及其方法

    公开(公告)号:KR20100040066A

    公开(公告)日:2010-04-19

    申请号:KR20080099119

    申请日:2008-10-09

    CPC classification number: G06Q10/087 G06K17/0022 G06K2017/0051

    Abstract: PURPOSE: A master RFID tag for the administration of physical distribution and a method thereof are provided to enable users to confirm the robbery of products in the middle of circulation steps. CONSTITUTION: A tag reader unit(300) reads information of RFID(Radio Frequency Identification) tag attached to each product stored in a deposit box. A tag information storage unit(310) store the RFID tag information read by the RFID tag. A control unit(330) wirelessly transmits the RFID tag information stored in the tag storage unit to an external RFID reader unit. The tag reader unit is activated by an activation command. The control unit compares the read RFID tag information with the stored RFID tag information.

    Abstract translation: 目的:提供用于管理物理分配的主RFID标签及其方法,以使用户能够在循环中步骤中确认产品的抢劫。 构成:标签读取器单元(300)读取附着到存储在存储箱中的每个产品的RFID(射频识别)标签的信息。 标签信息存储单元(310)存储由RFID标签读取的RFID标签信息。 控制单元(330)将存储在标签存储单元中的RFID标签信息无线地发送到外部RFID读取器单元。 标签读取器单元由激活命令激活。 控制单元将读取的RFID标签信息与存储的RFID标签信息进行比较。

    SYNCHRONIZATION METHOD BETWEEN READER AND TAG
    8.
    发明公开
    SYNCHRONIZATION METHOD BETWEEN READER AND TAG 无效
    读者和标签之间的同步方法

    公开(公告)号:KR20090065482A

    公开(公告)日:2009-06-22

    申请号:KR20090017908

    申请日:2009-03-03

    CPC classification number: G06K7/016

    Abstract: A synchronization method between a reader and a tag are provided to accurately perform the synchronization between a reader and a tag based on the calculation of both clock offset and message delay between the reader and the tag. A reader transmits a first write instruction message to a tag at first time(111), and the tag detects the first write instruction message from the reader at a second time. The tag transmits a first response message corresponding to the first write instruction message to the reader(112), and the reader the second write instruction message including time information for the first time to the tag(113). The tag corrects clock offset by using the difference between the first and second times.

    Abstract translation: 提供读取器和标签之间的同步方法,以便基于读取器和标签之间的时钟偏移和消息延迟的计算来精确地执行读取器和标签之间的同步。 读取器在第一时间向标签发送第一写指令消息(111),并且标签在第二时间从读取器检测第一写指令消息。 标签将与第一写入指令消息相对应的第一响应消息发送到读取器(112),并且读取器将包含第一次的时间信息的第二写入指令消息发送到标签(113)。 标签通过使用第一次和第二次之间的差异来校正时钟偏移。

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