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公开(公告)号：KR100819045B1
公开(公告)日：2008-04-02
申请号：KR1020060110168
申请日：2006-11-08
Applicant: 한국전자통신연구원
CPC classification number: G06K7/0008
Abstract: An apparatus and a method for optimizing the output of an RFID(Radio Frequency IDentification) reader are provided to maximize RFID tag recognition distance and ratio by optimizing the output of an RFID reader without having any effect on the interface loss between the RFID reader and its antenna. An apparatus for optimizing the output of an RFID reader(110) comprises a loss measurement part, an output compensation amplification part, and an output fixing part(130). The loss measurement part, which comprises an input port(140) placed between the RFID reader and an RFID reader antenna(160), receives a signal outputted from the antenna, and measures the interface loss between the RFID reader and the antenna. The output compensation amplification part having an amplifier(120) amplifies its own output to an output value to compensate for the measured interface loss. The output fixing part stores the compensated output value and regularly maintains the output of the output compensation amplification part.
Abstract translation: 提供了用于优化RFID（射频识别）读取器的输出的装置和方法，以通过优化RFID阅读器的输出来最大化RFID标签识别距离和比例，而不会对RFID阅读器与其之间的接口损耗产生任何影响 天线。 一种用于优化RFID读取器（110）的输出的装置，包括损耗测量部分，输出补偿放大部分和输出固定部分（130）。 损耗测量部分包括放置在RFID读取器和RFID读取器天线（160）之间的输入端口（140），接收从天线输出的信号，并测量RFID读取器和天线之间的接口损耗。 具有放大器（120）的输出补偿放大部件将其自身的输出放大到输出值以补偿所测量的接口损耗。 输出固定部分存储经补偿的输出值，并且定期维持输出补偿放大部分的输出。
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公开(公告)号：KR1020080036477A
公开(公告)日：2008-04-28
申请号：KR1020060103136
申请日：2006-10-23
Applicant: 한국전자통신연구원
CPC classification number: G07F9/026 , G06Q20/3278 , G06K17/00 , G06K2017/0067 , G07F17/00
Abstract: A vending machine system using RFID(Radio Frequency IDentification) and a method thereof are provided to sell goods automatically without billing a mobile network charge to a user in addition to a goods or service price by recognizing an RFID tag attached to each goods with a high recognition ratio. A multi-tag unit(120) includes a plurality of RFID tags respectively storing goods information. A sale manager(130) sells goods after checking stock of the requested goods based on the sale information stored in the RFID tags when a purchase request message including desired goods information is received. The sale manager includes a billing unit selling the goods and billing a purchase price to a user by checking the stock of the requested goods based on the goods information included in the received purchase request message, and a communicator communicating with a user terminal(150) including an RFID reader(160). The billing unit provides detail goods information to the user terminal when a detail information request message is received from the user terminal.
Abstract translation: 提供使用RFID（射频识别）的自动贩卖机系统及其方法，通过识别附加到每个货物的RFID标签，通过识别附加到每个商品的RFID标签，自动销售商品而不向用户计费移动网络费用，除了商品或服务价格 识别率。 多标签单元（120）包括分别存储商品信息的多个RFID标签。 销售经理（130）在接收到包含所需商品信息的购买请求消息时，基于存储在RFID标签中的销售信息，检查所请求商品的库存之后出售商品。 销售经理包括通过基于所接收的购买请求消息中包含的商品信息来检查所请求商品的库存并向用户计费购买价格的计费单元，以及与用户终端（150）通信的通信器， 包括RFID读取器（160）。 当从用户终端接收到详细信息请求消息时，计费单元向用户终端提供详细商品信息。
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公开(公告)号：KR1020090022159A
公开(公告)日：2009-03-04
申请号：KR1020070087273
申请日：2007-08-29
Applicant: 한국전자통신연구원
CPC classification number: H04Q9/00 , H04Q2209/47 , G06K7/10069 , H04L12/413
Abstract: A communications method between readers including a dual sensitivity mode used in a general reader and a portable reader and an apparatus thereof for minimizing interference between readers for collision avoidance are provided to reduce interference by communicating with a tag by converting into a reduced sensitivity mode. A reader which including a dual sensitivity mode is initialized into a normal sensitivity mode(S410). The reader temporarily selects a frequency channel(S420). The reader checks out the frequency channel in which the other reader is selected is used(S430). The reader changes into the attenuation sensitivity mode in order to reduce interference(S440). The reader performs communication with the tag in attenuation sensitivity mode(S450). If communications between the tag and reader are completed, the reader is again initialized to the normal sensitivity mode(S460).
Abstract translation: 提供包括用于通用阅读器的双灵敏度模式和便携式读取器之间的通信方法以及用于最小化用于冲突避免的读取器之间的干扰的装置，以通过转换为降低的灵敏度模式来减少与标签通信的干扰。 包括双重灵敏度模式的读取器被初始化为正常灵敏度模式（S410）。 读取器暂时选择频道（S420）。 读取器检出使用其他读取器被选择的频道（S430）。 阅读器变为衰减灵敏度模式以减少干扰（S440）。 阅读器以衰减灵敏度模式执行与标签的通信（S450）。 如果标签和阅读器之间的通信完成，则读取器再次被初始化为正常灵敏度模式（S460）。
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公开(公告)号：KR100825740B1
公开(公告)日：2008-04-29
申请号：KR1020060103136
申请日：2006-10-23
Applicant: 한국전자통신연구원
CPC classification number: G07F9/026 , G06Q20/3278
Abstract: 본 발명에 의한 RFID를 이용한 자동판매시스템은 판매상품정보를 저장하고 있는 RFID 태그를 복수개 포함하는 멀티태그부 및 구매희망상품에 대한 정보를 포함하는 구매요청메시지를 수신하면 RFID 태그들에 저장된 판매상품정보를 기초로 구매희망상품의 재고를 확인하여 판매하는 판매관리부를 포함한다. 본 발명에 의한 RFID를 이용한 자동판매시스템 및 그 방법은 이동통신망을 사용하지 않기 때문에 사용자는 상품 또는 서비스 요금 이외에 이동통신망 사용료를 추가로 부담하지 않아도 된다는 장점이 있다.
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Patent Agency Ranking
公开(公告)号：KR1020030024285A
公开(公告)日：2003-03-26
申请号：KR1020010057348
申请日：2001-09-17
Applicant: 한국전자통신연구원
IPC: H04B7/185
CPC classification number: H03F3/602
Abstract: PURPOSE: An apparatus for judging an operating point of a high power amplifier in a satellite communication system and a method therefor are provided to judge the operating point of the high power amplifier using signal information through a DC voltage converting unit by adding the DC voltage converting unit in a channel amplifier located before the high power amplifier. CONSTITUTION: A DC voltage converting unit(360) added to a channel amplifier(25a) in a satellite repeater couples an output power of the channel amplifier(25a) and converts the output power into a DC voltage for judging an operating point and an output power level of a high power amplifier. A database in a ground control station correlates and stores a DC voltage level of the channel amplifier(25a) and an output power value of the high power amplifier according to a command step assigned in each an FGM(Fixed Gain Control) mode or an ALC(Automatic Level Control) mode as to the entire channel of the satellite repeater before launching a satellite. An RF(Radio Frequency) test device in the ground control station uses the DC voltage level measured in the DC voltage converting unit(360) as telemetry information, and judges the operating point and the output power level of the high power amplifier of a corresponding channel stored in the database after launching the satellite.
Abstract translation: 目的：提供一种用于判断卫星通信系统中的高功率放大器的工作点的装置及其方法，用于通过直流电压转换单元通过添加直流电压转换来判断高功率放大器的工作点，使用信号信息 位于高功率放大器之前的通道放大器中的单元。 构成：添加到卫星中继器中的通道放大器（25a）的直流电压转换单元（360）耦合通道放大器（25a）的输出功率，并将输出功率转换成用于判断工作点和输出的直流电压 功率级别大功率放大器。 地面控制站中的数据库根据在每个FGM（固定增益控制）模式或ALC中分配的命令步骤相关并存储通道放大器（25a）的直流电压电平和高功率放大器的输出功率值 （自动电平控制）模式，用于在发射卫星之前卫星中继器的整个通道。 地面控制站中的RF（射频）测试装置使用在直流电压转换单元（360）中测量的直流电压电平作为遥测信息，并且判断相应的高功率放大器的工作点和输出功率电平 频道在发射卫星后存储在数据库中。
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公开(公告)号：KR100932902B1
公开(公告)日：2009-12-21
申请号：KR1020070087273
申请日：2007-08-29
Applicant: 한국전자통신연구원
CPC classification number: H04Q9/00 , H04Q2209/47
Abstract: Provided is a method for communication with between readers having dual sensitivity modes for avoiding conflict between readers arising from interference each other when simultaneously used in a limited space. The method for communication between a tag and a reader using dual sensitivity modes for avoiding conflict between the reader and the tag includes: initializing the reader to a normal sensitivity mode; temporarily selecting a frequency channel by the reader; checking whether or not a different reader uses the selected frequency channel; repeatedly selecting another frequency channel if the other readers occupy the selected frequency channel; switching to a reduced sensitivity mode if the other readers do not occupy the selected frequency channel; and communicating with the tag by the reader in the reduced sensitivity mode.
Abstract translation: 提供了一种用于与具有双重灵敏度模式的读取器之间的通信的方法，用于避免当在有限的空间中同时使用时彼此干扰引起的读取器之间的冲突。 为了避免阅读器和标签之间的冲突，使用双灵敏度模式在标签和阅读器之间进行通信的方法包括：将阅读器初始化为正常灵敏度模式; 由读取器临时选择频道; 检查不同的阅读器是否使用所选择的频道; 如果其他阅读器占用选择的频道，则重复选择另一个频道; 如果其他阅读器不占用选择的频道，则切换到降低的灵敏度模式; 并且在降低的灵敏度模式下由读取器与标签进行通信。
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公开(公告)号：KR100884749B1
公开(公告)日：2009-02-20
申请号：KR1020070087272
申请日：2007-08-29
Applicant: 한국전자통신연구원
CPC classification number: G06K7/0008 , G06K7/10069 , G06K7/10356 , H04Q2213/13095
Abstract: A method and a device for preventing collision among RFID(Radio Frequency ID) readers classified into each output level are provided to preferentially assign a frequency channel to first readers by using a channel holding signal, and control a ratio of frequency channels of mobile/portable RFID readers and general RFID readers. RFID readers are classified into first and second RFID readers according to a maximum output level, and a first frequency channel for the first RFID readers and a second frequency channel for the second RFID readers are set(S310). Frequency channel assignment information is set by assigning one of the first frequency channels to each first RFID reader(S320). A channel holding signal is generated in each first frequency channel to restrict use of the second RFID readers(S330). A request for using the frequency channel is received from on first RFID reader(S340). Generation of the channel holding signal is stopped in the selected frequency channel based on the frequency channel assignment information(S350). The channel holding signal is generated in the requested frequency channel when the request for returning the frequency channel is received from one first RFID reader(S360).
Abstract translation: 提供分类为各输出电平的RFID（Radio Frequency ID）读取器之间的冲突的方法和装置，以通过使用信道保持信号来优先地向第一读取器分配频道，并且控制移动/便携式 RFID读写器和一般RFID阅读器。 RFID读取器根据最大输出电平被分类为第一和第二RFID读取器，并且设置用于第一RFID读取器的第一频率信道和用于第二RFID读取器的第二频率信道（S310）。 通过将第一频率信道中的一个分配给每个第一RFID读取器来设置频道分配信息（S320）。 在每个第一频道中生成频道保持信号以限制第二RFID读取器的使用（S330）。 从第一RFID读取器接收使用频率信道的请求（S340）。 基于频道分配信息，在所选择的频道中停止频道保持信号的生成（S350）。 当从一个第一RFID读取器接收到返回频道的请求时，在请求的频道中生成频道保持信号（S360）。
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公开(公告)号：KR100954232B1
公开(公告)日：2010-04-21
申请号：KR1020070130507
申请日：2007-12-13
Applicant: 한국전자통신연구원
Abstract: 교차로 등 비교적 근거리에 위치하는 인접 차량의 위치 및 이동 경로를 파악함으로써 차량 간의 충돌을 회피할 수 있도록 하는 차량 충돌 회피 방법 및 시스템이 개시된다.
본 발명에 의한 차량 충돌 회피 시스템은 복수의 지향성 안테나, 안테나 스위칭부, 수신부, 송신부 및 제어부를 포함한다.
또한, 본 발명에 의한 차량 충돌 회피 방법은, 적어도 하나의 인접차량으로부터 상기 인접차량 각각을 고유하게 식별하는 무선주파수신호를 수신하는 단계, 상기 무선주파수신호를 판독하여 기준차량에 대한 상기 인접차량의 상대거리 및 상대방향을 산출하는 단계, 미리 설정된 회수만큼 상기 상대거리 및 상기 상대방향을 산출하는 단계를 반복적으로 수행하여 상기 기준차량에 대한 상기 인접차량의 상대속도 및 상대가속도를 산출하는 단계 및 상기 상대거리, 상기 상대방향, 상기 상대속도 및 상기 상대가속도에 의거하여 상기 인접차량의 충돌가능성을 판단하는 단계를 포함한다.
차량, 충돌, 회피, 거리, 방향, 속도, 가속도, 위치, 이동경로, 지향성 안테나-
公开(公告)号：KR1020090063002A
公开(公告)日：2009-06-17
申请号：KR1020070130507
申请日：2007-12-13
Applicant: 한국전자통신연구원
Abstract: A method and a system for avoiding the vehicle collision are provided, which can avoid collision between the vehicles by grasping location and movement route of the adjacent vehicle by transmitting and receiving of the radio frequency signal about the adjacent vehicle. A plurality of directional antennae receive the first radio frequency signal from the adjacent vehicle. The second radio frequency signal is transmitted to the adjacent vehicle. The antenna switching part(230) is connected to a plurality of directional antennae. The directional antenna each operation is switched. The receiver(210) is connected to the antenna switching part. The transmission unit(220) is connected to the antenna switching part. The transmission unit delivers the second radio frequency signal to the directional antenna through the antenna switching part.
Abstract translation: 提供了一种用于避免车辆碰撞的方法和系统，其可以通过发送和接收关于相邻车辆的射频信号来抓取相邻车辆的位置和移动路线来避免车辆之间的碰撞。 多个定向天线接收来自相邻车辆的第一射频信号。 第二射频信号被发送到相邻的车辆。 天线切换部（230）与多个定向天线连接。 定向天线的每个操作都被切换。 接收器（210）连接到天线切换部分。 传输单元（220）连接到天线切换部分。 发送单元通过天线切换部将第二射频信号发送到定向天线。
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