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    • 4. 发明申请
    • System for tag estimation and anti-collision and method thereof
    • 用于标签估计和防碰撞的系统及其方法
    • US20080150674A1
    • 2008-06-26
    • US11710133
    • 2007-02-23
    • Jongho ParkMin-Young ChungTae-Jin Lee
    • Jongho ParkMin-Young ChungTae-Jin Lee
    • G05B19/02
    • H04W28/06H04W74/08
    • The present application discloses a system and a method for tag estimation and anti-collision in an RFID system, which can estimate an exact number of tags within an RF area and can rapidly identify tags by using the estimated number of tags in an RFID system. The system includes an RFID reader and RFID tags. The RFID reader includes an identification means, a collision management means, a tag number estimation means, and a reader control means. The RFID tag includes a tag communication means, a message reading means, a counter management means, an information storage means, and a tag control means. The disclosed system and method can prevent occurrence of too many idle times slots in the DFSA and too many initial collisions in the binary tree scheme, and thus can identify a large number of tags at a high speed with a small number of time slots.
    • 本申请公开了一种RFID系统中的标签估计和防碰撞的系统和方法,其可以估计RF区域内的标签的确切数量,并且可以通过使用估计的RFID系统中的标签数量来快速识别标签。 该系统包括RFID阅读器和RFID标签。 RFID读取器包括识别装置,碰撞管理装置,标签号估计装置和读取器控制装置。 RFID标签包括标签通信装置,消息读取装置,计数器管理装置,信息存储装置和标签控制装置。 所公开的系统和方法可以防止DFSA中发生太多空闲时隙,并且在二叉树方案中发生太多的初始冲突,因此可以用少量时隙高速识别大量的标签。
    • 5. 发明授权
    • System for tag estimation and anti-collision and method thereof
    • 用于标签估计和防碰撞的系统及其方法
    • US08085131B2
    • 2011-12-27
    • US11710133
    • 2007-02-23
    • Jongho ParkMin-Yong ChungTae-Jin Lee
    • Jongho ParkMin-Yong ChungTae-Jin Lee
    • H04Q3/00
    • H04W28/06H04W74/08
    • The present application discloses a system and a method for tag estimation and anti-collision in an RFID system, which can estimate an exact number of tags within an RF area and can rapidly identify tags by using the estimated number of tags in an RFID system. The system includes an RFID reader and RFID tags. The RFID reader includes an identification means, a collision management means, a tag number estimation means, and a reader control means. The RFID tag includes a tag communication means, a message reading means, a counter management means, an information storage means, and a tag control means. The disclosed system and method can prevent occurrence of too many idle times slots in the DFSA and too many initial collisions in the binary tree scheme, and thus can identify a large number of tags at a high speed with a small number of time slots.
    • 本申请公开了一种RFID系统中的标签估计和防碰撞的系统和方法,其可以估计RF区域内的标签的确切数量,并且可以通过使用估计的RFID系统中的标签数量来快速识别标签。 该系统包括RFID阅读器和RFID标签。 RFID读取器包括识别装置,碰撞管理装置,标签号估计装置和读取器控制装置。 RFID标签包括标签通信装置,消息读取装置,计数器管理装置,信息存储装置和标签控制装置。 所公开的系统和方法可以防止DFSA中发生太多空闲时隙,并且在二叉树方案中发生太多的初始冲突,因此可以用少量时隙高速识别大量的标签。
    • 7. 发明授权
    • Bidirectional inverter for new renewable energy storage system
    • 新型可再生能源储存系统双向逆变器
    • US08817508B2
    • 2014-08-26
    • US12820005
    • 2010-06-21
    • Jongho Park
    • Jongho Park
    • H02M3/24
    • H02M7/797H02M2001/007
    • A bidirectional inverter is provided for a renewable energy storage system which may simplify the circuitry and lower manufacturing cost by reducing the numbers of switches and control signals. The bidirectional inverter includes a pulse-width-modulation (PWM) signal provider for providing a PWM signal, a push-pull inverter coupled to the PWM signal provider and a direct current (DC) link, and an offset voltage provider coupled to the push-pull inverter and the electric power system. Accordingly, the bidirectional inverter converts DC power from the DC link into AC power or AC power from the electric power system into DC power.
    • 为可再生能源存储系统提供双向逆变器,其可通过减少开关和控制信号的数量来简化电路并降低制造成本。 双向逆变器包括用于提供PWM信号的脉冲宽度调制(PWM)信号提供器,耦合到PWM信号提供器的推挽逆变器和直流(DC)链路以及耦合到推挽的偏移电压提供器 - 逆变器和电力系统。 因此,双向逆变器将来自直流链路的直流电力从电力系统转换为交流电力或交流电力为直流电力。