IMPEDANCE MATCHING DEVICE OF SENSOR NODE AND IMPEDANCE MATCHING METHOD OF SENSOR NODE
    152.
    发明申请
    IMPEDANCE MATCHING DEVICE OF SENSOR NODE AND IMPEDANCE MATCHING METHOD OF SENSOR NODE 审中-公开
    传感器节点的阻抗匹配装置和传感器节点的阻抗匹配方法

    公开(公告)号:US20080136548A1

    公开(公告)日:2008-06-12

    申请号:US11860388

    申请日:2007-09-24

    CPC classification number: H03H7/40

    Abstract: Provided are an impedance matching device of a sensor node and an impedance matching method of a sensor node. The impedance matching device comprises: a variable impedance matching unit disposed between a transmission unit, which is used for modulating a received signal to a radio frequency (RF) signal and outputting the RF signal, and an antenna and including a plurality of impedance matching circuits which have different impedance values from each other; a signal intensity measuring unit which measures the intensity of an output signal that is output through the variable impedance matching unit; and a control unit which controls one of the impedance matching circuits of the variable impedance matching unit to have an impedance value that maximizes the intensity of the output signal. Accordingly, impedance between the transmission unit and the antenna of the sensor node is adjusted when the impedance varies due to the environment in which the sensor node is used, and thus the transmission efficiency of the sensor node is improved. Consequently, a limited power source of the sensor node can be used for a longer duration, the sensor node can be connected to other sensor nodes more successfully, and the communication reliability of the sensor node can be secured.

    Abstract translation: 提供传感器节点的阻抗匹配装置和传感器节点的阻抗匹配方法。 阻抗匹配装置包括:可变阻抗匹配单元,设置在用于将接收信号调制到射频(RF)信号并输出​​RF信号的传输单元之间,以及包括多个阻抗匹配电路的天线 它们彼此具有不同的阻抗值; 信号强度测量单元,其测量通过可变阻抗匹配单元输出的输出信号的强度; 以及控制单元,其控制可变阻抗匹配单元的阻抗匹配电路之一以具有使输出信号的强度最大化的阻抗值。 因此,当阻抗由于使用传感器节点的环境而变化时,传感器节点的传输单元和天线之间的阻抗被调整,因此提高了传感器节点的传输效率。 因此,传感器节点的有限电源可以使用更长的时间,传感器节点可以更成功地连接到其他传感器节点,并且可以确保传感器节点的通信可靠性。

    MATCHING SYSTEM AND METHOD FOR PREVENTING THE LOSS OF DATA BETWEEN LOW-POWER NETWORK AND NON-LOW-POWER NETWORK
    153.
    发明申请
    MATCHING SYSTEM AND METHOD FOR PREVENTING THE LOSS OF DATA BETWEEN LOW-POWER NETWORK AND NON-LOW-POWER NETWORK 审中-公开
    用于防止低功耗网络与非低功耗网络之间的数据丢失的匹配系统和方法

    公开(公告)号:US20080129466A1

    公开(公告)日:2008-06-05

    申请号:US11877784

    申请日:2007-10-24

    CPC classification number: H04W16/14 H04L47/10 Y02D70/166 Y02D70/26

    Abstract: There is provided a matching system for preventing the loss of data between a low-power network and a non-low-power network, the matching system including: an RF communication schedule management unit, installed in the low-power network side system, for managing a schedule of an RF communication period indicative of a data transmission period of the low-power network; a heterogeneous network communication schedule management unit, disposed in the non-low-power network side system, for creating a schedule to transmit data to the low-power network side system based on the RF communication period provided by the RF communication schedule management unit; and a heterogeneous network communication unit for transmitting the data to the low-power network side system depending on the schedule created by the heterogeneous network communication schedule management unit.

    Abstract translation: 提供了一种用于防止低功率网络和非低功率网络之间的数据丢失的匹配系统,所述匹配系统包括:安装在低功率网络侧系统中的RF通信进度管理单元,用于 管理指示低功率网络的数据传输周期的RF通信周期的调度; 设置在非低功率网络侧系统中的异构网络通信调度管理单元,用于基于由RF通信调度管理单元提供的RF通信期间,创建向低功率网络侧系统发送数据的调度; 以及用于根据异构网络通信调度管理单元创建的调度将数据发送到低功率网络侧系统的异构网络通信单元。

    LOWER POWER BATTERY-ASSISTED RFID TAG HAVING IMPROVED RECOGNITION DISTANCE, AND WAKE-UP METHOD THEREOF
    154.
    发明申请
    LOWER POWER BATTERY-ASSISTED RFID TAG HAVING IMPROVED RECOGNITION DISTANCE, AND WAKE-UP METHOD THEREOF 有权
    具有改进的识别距离的下电力电池辅助RFID标签及其唤醒方法

    公开(公告)号:US20080122625A1

    公开(公告)日:2008-05-29

    申请号:US11928288

    申请日:2007-10-30

    CPC classification number: G06K19/07749 G06K19/0705

    Abstract: Provided are a radio frequency identification (RFID) tag and a wake-up method thereof. The RFID tag includes: a power source that supplies a driving voltage; a continuous wave detector that receives the driving voltage from the power supply so as to detect a continuous wave in a signal received from an RFID tag reader; a command detector that selectively receives the driving voltage and detects a command in the signal; and a controller that executes the command detected by the command detector by supplying the driving voltage to the command detector if the continuous wave is detected, and stops the driving voltage from being supplied to the command detector if no command is received from the command detector for a predetermined time period.

    Abstract translation: 提供射频识别(RFID)标签及其唤醒方法。 RFID标签包括:提供驱动电压的电源; 连续波检测器,其从所述电源接收所述驱动电压,以便检测从RFID标签读取器接收的信号中的连续波; 命令检测器,其选择性地接收所述驱动电压并检测所述信号中的命令; 以及控制器,如果检测到连续波,则执行由指令检测器检测到的指令,将驱动电压提供给指令检测器,并且如果没有从命令检测器接收到命令,则将驱动电压提供给命令检测器, 预定时间段。

    APPARATUS AND METHOD OF OPTIMIZING OUTPUT POWER OF RFID READER
    155.
    发明申请
    APPARATUS AND METHOD OF OPTIMIZING OUTPUT POWER OF RFID READER 审中-公开
    RFID读写器优化输出功率的装置及方法

    公开(公告)号:US20080106384A1

    公开(公告)日:2008-05-08

    申请号:US11923204

    申请日:2007-10-24

    CPC classification number: G06K7/0008

    Abstract: Provided are an apparatus and method of optimizing a power output of a radio frequency identification reader (RFID) reader. The apparatus includes a loss measurement unit which measures an interface loss between the RFID reader and an antenna by receiving a signal output from the antenna of the RFID reader, a output power compensation amplifier which amplifies a power output to compensate for the measured interface loss, and an output fixation unit which uniformly maintains a power output of the output power compensation amplifier by storing the output compensated power value.

    Abstract translation: 提供了一种优化射频识别读取器(RFID)读取器的功率输出的装置和方法。 该装置包括:损耗测量单元,其通过接收从RFID读取器的天线输出的信号来测量RFID读取器和天线之间的接口损耗;输出功率补偿放大器,其放大功率输出以补偿所测量的接口损耗; 以及输出固定单元,其通过存储输出补偿功率值来均匀地维持输出功率补偿放大器的功率输出。

    METHOD OF MANAGING ADDRESS SPACES OF INCOMMUNICABLE NODES IN ZIGBEE NETWORK
    156.
    发明申请
    METHOD OF MANAGING ADDRESS SPACES OF INCOMMUNICABLE NODES IN ZIGBEE NETWORK 有权
    在ZIGBEE网络中管理不可调用的地址空间的方法

    公开(公告)号:US20080080416A1

    公开(公告)日:2008-04-03

    申请号:US11859902

    申请日:2007-09-24

    Abstract: Provided is a method of managing addresses of incommunicable nodes in a ZigBee network, and more particularly, a method of managing address values of a plurality of nodes that form a ZigBee network by efficiently withdrawing address values from nodes which are incommunicable for reasons of abnormality. An address management process can be performed using two methods. According to a first method, a parent node withdraws address values of child nodes that do not transmit a hello message for a predetermined period of time. According to a second method, a parent node transmits a periodic or non-periodic request message to child nodes, and the child nodes, which receive the request message, immediately transmit a hello message to the parent node. Then, the parent node withdraws address values of child nodes that do not respond to the request message sent by the parent node more than a predetermined number of times. An address value assignment process and a process for nodes that have their address values withdrawn are also provided.

    Abstract translation: 提供了一种管理ZigBee网络中不可通信节点的地址的方法,更具体地,涉及一种通过从为了异常的原因而不能通信的节点有效地提取地址值来管理形成ZigBee网络的多个节点的地址值的方法。 可以使用两种方法来执行地址管理过程。 根据第一种方法,父节点在预定时间段内提取不发送hello消息的子节点的地址值。 根据第二种方法,父节点向子节点发送周期性或非周期性请求消息,并且接收请求消息的子节点立即向父节点发送hello消息。 然后,父节点提取不响应父节点发送的请求消息超过预定次数的子节点的地址值。 还提供了地址值分配处理和其地址值撤销的节点的处理。

    METHOD FOR READING TAG IN MOBILE RFID ENVIRONMENT
    157.
    发明申请
    METHOD FOR READING TAG IN MOBILE RFID ENVIRONMENT 审中-公开
    在移动RFID环境中读取标签的方法

    公开(公告)号:US20070236332A1

    公开(公告)日:2007-10-11

    申请号:US11689609

    申请日:2007-03-22

    CPC classification number: G01D21/00

    Abstract: Provided is a method for reading a tag in a mobile Radio Frequency Identification (RFID) environment. The tag reading method effectively identifies a tag by repeatedly transmitting a tag identification request in a predetermined time to prevent collision among RFID readers, when a plurality of RFID readers access to a tag. The method for reading a tag in a mobile RFID environment, which includes the steps of: a) transmitting a tag identification request signal to a tag; b) waiting for an acknowledgement signal to be transmitted from the tag; and c) when no acknowledgement signal is transmitted from the tag, retransmitting the tag identification request signal after a predetermined delay time passes.

    Abstract translation: 提供了一种在移动射频识别(RFID)环境中读取标签的方法。 标签读取方法在多个RFID阅读器访问标签时,通过在预定时间内重复发送标签识别请求来有效地识别标签,以防止RFID读取器之间的冲突。 一种用于在移动RFID环境中读取标签的方法,包括以下步骤:a)向标签发送标签识别请求信号; b)等待从标签发送确认信号; 以及c)当没有从所述标签发送确认信号时,经过预定延迟时间之后重传所述标签识别请求信号。

    Data storing apparatus and method for RFID tags with sensors
    158.
    发明申请
    Data storing apparatus and method for RFID tags with sensors 失效
    具有传感器的RFID标签的数据存储装置和方法

    公开(公告)号:US20070132588A1

    公开(公告)日:2007-06-14

    申请号:US11542479

    申请日:2006-10-03

    Abstract: Provided is a data storing apparatus and method for Radio Frequency Identification (RFID) tags with sensors. The apparatus includes: a first storing block which includes a kill password storage and an access password storage; a second storing block which includes an Electronic Product Code (EPC) storage, a protocol control storage, and an error check storage storing a Cyclic Redundancy Checking (CRC) code for detecting a transmission error; a third storing block which includes a tag identifier storage storing a tag identifier including a manufacture model and a serial number of the tag; and a fourth storing block which includes an initial sensor data storage storing initial information of the sensor, a real-time information storage, a maximum/minimum data storage storing maximum/minimum values, a sensor data storage storing sensing data actually measured through the sensor embedded in the RFID tag.

    Abstract translation: 提供了一种具有传感器的射频识别(RFID)标签的数据存储装置和方法。 该装置包括:第一存储块,其包括杀死密码存储和访问密码存储; 包括电子产品代码(EPC)存储器,协议控制存储器和存储用于检测传输错误的循环冗余校验(CRC)代码的错误检查存储器的第二存储块; 第三存储块,其包括存储包括标签的制造模型和序列号的标签标识符的标签标识符存储器; 以及第四存储块,其包括存储传感器的初始信息的初始传感器数据存储器,实时信息存储器,存储最大/最小值的最大/最小数据存储器,存储通过传感器实际测量的感测数据的传感器数据存储器 嵌入RFID标签。

    Power control method for mobile RFID reader and RFID reader using the same
    159.
    发明申请
    Power control method for mobile RFID reader and RFID reader using the same 有权
    移动RFID阅读器和RFID阅读器的电源控制方法使用相同

    公开(公告)号:US20070126553A1

    公开(公告)日:2007-06-07

    申请号:US11607502

    申请日:2006-11-29

    CPC classification number: H04B5/02 H04B5/0056 H04W52/04

    Abstract: Provided is a power control method for a mobile Radio Frequency Identification (RFID) reader and an RFID reader using the same. The RFID reader includes: an RFID reader transmission/reception control unit for creating a message to be transmitted to an RFID tag and transmitting RFID tag information to a terminal control unit; a reader transmitting unit for encoding and modulating the created message; a power amplifier for amplifying an output signal; a reader receiving unit for demodulating and decoding the signal and transmitting the signal to the RFID reader transmission/reception control unit; and an RFID reader power control unit for controlling power, wherein when the RFID reader transmission/reception control unit receives a command for acquiring the RFID tag information, the RFID reader power control unit applies power to the power amplifier.

    Abstract translation: 提供了一种用于移动射频识别(RFID)读取器和使用其的RFID读取器的功率控制方法。 RFID读取器包括:RFID读取器发送/接收控制单元,用于创建要发送到RFID标签的消息并向终端控制单元发送RFID标签信息; 用于对所创建的消息进行编码和调制的读取器发送单元; 用于放大输出信号的功率放大器; 读取器接收单元,用于解调和解码信号并将信号发送到RFID读取器发送/接收控制单元; 以及用于控制电力的RFID读取器功率控制单元,其中当RFID读取器发送/接收控制单元接收到用于获取RFID标签信息的命令时,RFID读取器功率控制单元向功率放大器施加电力。

    Distributional alert system for disaster prevention utilizing ubiquitous sensor network
    160.
    发明申请
    Distributional alert system for disaster prevention utilizing ubiquitous sensor network 有权
    使用无所不在的传感器网络进行防灾分布式警报系统

    公开(公告)号:US20070103298A1

    公开(公告)日:2007-05-10

    申请号:US11595456

    申请日:2006-11-09

    CPC classification number: G08B25/009 G08B25/10 G08B27/005

    Abstract: Provided is a distributional alert system using a ubiquitous sensor network (USN). When a disaster occurs, the distributional alert system detects it in a sensor node, informs the area where the disaster occurs of danger through an actuator, such as siren, or informs a management system of the danger through a wired/wireless network. The distributional alert system includes: a first sensor node for generating sense data by sensing surroundings with a sensor therein, determining whether a disaster occurs by analyzing the sense data, and creating and transmitting emergency data based on the determination result, while forming a sensor network; and an alerting node for receiving emergency data from the first sensor node on the sensor network, and outputting disaster circumstantial information to a sensor field of the sensor network upon receipt of the emergency data.

    Abstract translation: 提供了使用普遍存在的传感器网络(USN)的分布式警报系统。 当发生灾难时,分布式警报系统会在传感器节点中检测到故障,通过执行器(如警笛)告知灾害发生的危险区域,或通过有线/无线网络通知管理系统危险。 所述分配警报系统包括:第一传感器节点,用于通过在其中传感器感测环境来产生感测数据;通过分析感测数据来确定是否发生灾难;以及在形成传感器网络的同时,基于确定结果创建并发送紧急数据 ; 以及用于从所述传感器网络上的所述第一传感器节点接收紧急数据的报警节点,并且在接收到所述紧急数据时将所述灾害环境信息输出到所述传感器网络的传感器场。

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