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    • 13. 发明申请
    • APPARATUS AND METHOD FOR CONTROLLING OPERATION OF LINEAR COMPRESSOR
    • 控制线性压缩机运行的装置和方法
    • US20090010766A1
    • 2009-01-08
    • US12159316
    • 2006-12-28
    • Jae-Yoo YooJi-Won SungChel-Woong Lee
    • Jae-Yoo YooJi-Won SungChel-Woong Lee
    • F04B49/06G05F5/04
    • F04B49/065
    • An apparatus and method for controlling an operation of a reciprocating compressor are disclosed in which a frequency is variably controlled to uniformly maintain a phase difference between current and stroke, a load is determined with a size of frequency at a point of time when the phase difference between the current and the stroke is uniformly maintained, and capacity is varied according to the determined load, to thus improve an operation efficiency. The apparatus for controlling an operation of a reciprocating compressor includes: a control unit for detecting a phase difference between current and stroke and outputting a frequency variable signal or a frequency detect signal based on the detected phase difference; a load detecting unit for detecting a current operation load according to the frequency detect signal; and a stroke reference value determining unit for determining a stroke reference value corresponding to the detected load.
    • 公开了一种用于控制往复式压缩机的操作的装置和方法,其中可变地控制频率以均匀地维持电流和行程之间的相位差,在相位差的时间点以大小的频率确定负载 在电流和行程之间均匀地保持,并且容量根据确定的负载而变化,从而提高了操作效率。 用于控制往复式压缩机的操作的装置包括:控制单元,用于检测电流和行程之间的相位差,并且基于检测到的相位差输出频率可变信号或频率检测信号; 负载检测单元,用于根据频率检测信号检测当前的操作负载; 以及行程基准值确定单元,用于确定与检测到的负载相对应的行程参考值。
    • 15. 发明授权
    • Intelligent channel selection apparatus and method against various interferers in wireless communication systems and receiver using the same
    • 针对无线通信系统中的各种干扰源的智能信道选择装置和方法及使用其的接收机
    • US07414993B2
    • 2008-08-19
    • US10874533
    • 2004-06-24
    • Hae-Moon SeoYong-Kuk ParkKwang-Ho WonJune-Jae Yoo
    • Hae-Moon SeoYong-Kuk ParkKwang-Ho WonJune-Jae Yoo
    • H04B1/26
    • H04W72/02H04W16/14H04W24/10
    • Disclosed herein is an intelligent channel selection apparatus and method against various interferers in wireless communication systems, and a receiver using the same. The intelligent channel selection apparatus includes a channel power measurement unit, a channel list storage unit, a channel selection data generation unit and a channel selection unit. The channel power measurement unit measures received signal channel power of a plurality of available channels and storing the received signal channel power as channel power data. The channel list storage unit arranges the plurality of available channels and storing the plurality of available channels in a channel list. The channel selection data generation unit generates data for channel selection based on the signal channel power data and the frequency offsets of the channels of the channel list. The channel selection unit selects the highest priority channel from the channel list based on the data for channel selection.
    • 本文公开了一种针对无线通信系统中的各种干扰的智能信道选择装置和方法,以及使用其的接收机。 智能信道选择装置包括信道功率测量单元,信道列表存储单元,信道选择数据生成单元和信道选择单元。 信道功率测量单元测量多个可用信道的接收信号信道功率,并将接收到的信道信道功率存储为信道功率数据。 频道列表存储单元布置多个可用频道并将多个可用频道存储在频道列表中。 信道选择数据生成单元基于信道信道功率数据和信道列表的信道的频率偏移来生成用于信道选择的数据。 信道选择单元基于用于信道选择的数据从信道列表中选择最高优先级信道。
    • 16. 发明申请
    • APPARATUS AND METHOD FOR CONTROLLING OPERATION OF RECIPROCATING COMPRESSOR
    • 控制压缩机操作的装置和方法
    • US20080150456A1
    • 2008-06-26
    • US11618139
    • 2006-12-29
    • Kyung-Bum HEOJae-Yoo YOOJi-Won SUNG
    • Kyung-Bum HEOJae-Yoo YOOJi-Won SUNG
    • H02P1/00
    • F25B49/025F25B2600/021F25B2600/024F25B2700/151Y02B30/741
    • An apparatus and method for controlling an operation of a reciprocating compressor are disclosed. The apparatus for controlling an operation of a reciprocating compressor includes: a current phase delay value generating unit that calculates a current phase delay value by using a current stroke and a detected current and outputting the calculated current phase delay value; and a reference current generating unit that delays a reference current based on a difference between the current stroke and a stroke reference value according to the current phase delay value. A phase difference between a current and a pulse width modulation (PWM) voltage is estimated, a phase delay value for compensating the estimated phase difference is calculated, and a reference current is delayed as much as the calculated phase delay value for a certain time to thus remove a current distortion phenomenon. Therefore, an operation efficiency of the reciprocating compressor can be enhanced and a precision degree in controlling a top dead center (TDC) can be improved.
    • 公开了一种用于控制往复式压缩机的操作的装置和方法。 用于控制往复式压缩机的操作的装置包括:当前相位延迟值生成单元,其通过使用当前行程和检测电流来计算当前相位延迟值,并输出计算出的当前相位延迟值; 以及参考电流产生单元,其根据当前相位延迟值,基于当前行程和行程基准值之间的差异来延迟参考电流。 估计电流和脉冲宽度调制(PWM)电压之间的相位差,计算用于补偿估计的相位差的相位延迟值,并且将参考电流延迟到计算的相位延迟值一定时间至 从而消除电流失真现象。 因此,能够提高往复式压缩机的运转效率,能够提高控制上死点(TDC)的精度。
    • 17. 发明授权
    • Apparatus for controlling operation of reciprocating compressor, and method therefor
    • 用于控制往复式压缩机运行的装置及其方法
    • US07271563B2
    • 2007-09-18
    • US10930842
    • 2004-09-01
    • Jae-Yoo YooChel-Woong LeeHyung-Joo Kim
    • Jae-Yoo YooChel-Woong LeeHyung-Joo Kim
    • H02P1/00G05D23/275F04B49/06
    • F04B35/045F04B2203/0402
    • The present invention discloses an apparatus for controlling an operation of a reciprocating compressor and a method therefor which can reduce errors in an operation of a stroke estimated value of the reciprocating compressor, by previously preventing over-saturation of a magnetic flux density generated in a coil of a motor. The apparatus for controlling the operation of the reciprocating compressor includes a magnetic flux saturation constant operation unit for operating a magnetic flux saturation constant of a motor of the reciprocating compressor on the basis of a stroke estimated value of the reciprocating compressor, a stroke reference value generation unit for generating an increased or decreased stroke reference value by increasing or decreasing a predetermined stroke reference value on the basis of the magnetic flux saturation constant, and a control unit for controlling a voltage applied to the motor of the reciprocating compressor on the basis of the generated stroke reference value.
    • 本发明公开了一种用于控制往复式压缩机的操作的装置及其方法,其通过预先防止在线圈中产生的磁通密度的过饱和,其可以减少往复式压缩机的冲程估计值的操作中的误差 的电机。 用于控制往复式压缩机的操作的装置包括磁通量饱和常数运算单元,用于根据往复式压缩机的行程估计值,行程参考值生成来操作往复式压缩机的电动机的磁通饱和常数 单元,用于通过基于磁通饱和常数增加或减少预定行程参考值来产生增加或减小的行程参考值;以及控制单元,用于基于所述磁通饱和常数控制施加到往复式压缩机的电动机的电压 生成笔画参考值。
    • 18. 发明申请
    • Device for simultaneously collecting filtered water and filter paper
    • 用于同时收集过滤水和滤纸的装置
    • US20050226783A1
    • 2005-10-13
    • US10499192
    • 2002-12-18
    • Cheol-Soo MyungSin-Jae Yoo
    • Cheol-Soo MyungSin-Jae Yoo
    • G01N1/10G01N1/00G01N1/28G01N33/18B01L11/00
    • G01N1/4077G01N2001/4088
    • The present invention relates to filtering a collected sample for water analysis, and a device where filtered water is collected so that filtered water can be contained in a sample container and where the collecting rate of the sample can be controlled. The collecting device comprises at least one filter funnel part, an upper plate on which the funnel part placed, mounting means comprising a supporting rod wherein one side of the supporting rod is combined with the edge of the upper plate and a waste box fixing the supporting rod, several base container parts wherein the sample container is inserted and a outlet port is formed, and a vacuum pump connected to the vacuum connecting port by a pump tube. Accordingly, the step of transferring filtered water into the sample container can be omitted, and the collection time can be reduced by controlling the collecting rate of the sample.
    • 本发明涉及对用于水分析的收集的样品进行过滤,以及收集过滤水的装置,使得过滤的水可以包含在样品容器中并且可以控制样品的收集速率。 收集装置包括至少一个过滤器漏斗部分,放置漏斗部分的上板,安装装置,其包括支撑杆,支撑杆的一侧与上板的边缘组合;以及废物箱, 杆,其中插入样品容器和形成出口的几个基底容器部分,以及通过泵管连接到真空连接口的真空泵。 因此,可以省略将过滤水转移到样品容器中的步骤,并且通过控制样品的收集速率可以减少收集时间。