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    • 2. 发明授权
    • Infrared object detector
    • 红外物体探测器
    • US5637040A
    • 1997-06-10
    • US630647
    • 1996-04-10
    • Tae-ho KimSung-soo LeeWon-kyo Jung
    • Tae-ho KimSung-soo LeeWon-kyo Jung
    • G01V8/14F24F11/00F24F11/02G01J1/02G01S7/48G01S17/02G01S17/88G01V8/12G08B13/18G08B13/19
    • G08B13/19F24F11/0034
    • An infrared object detector, especially for an air conditioner is provided with a light receiving unit including a light block between a pair of hemispherical Fresnel lenses arranged in parallel on a printed circuit board, so that light receiving views intersect each other to thereby define three detection areas. From a signal output from the light receiving unit, the distance to a detected object is determined through a signal processing circuit and a program built in a microcomputer. The rotational speed of a fan in the air conditioner is classified into three stages according to the determined distance, and a command is issued for controlling the operation of an air conditioner according to the number, movements, movement degrees to persons. Therefore, the airflow of the air conditioner is controlled based on the command, thereby performing an optimum air conditioning. Further, the infrared object detector can be applied to a camcorder or a camera, to determine the distance to an object more accurately.
    • 一种特别用于空调的红外对象检测器设置有光接收单元,该光接收单元包括在印刷电路板上平行布置的一对半球形菲涅尔透镜之间的光块,使得光接收视图彼此相交,从而限定三个检测 地区 从光接收单元输出的信号,通过信号处理电路和内置于微型计算机中的程序来确定到被检测物体的距离。 根据所确定的距离将空调机中的风扇的旋转速度分为三个阶段,并且发出用于根据对人的数量,移动,移动程度来控制空调的操作的命令。 因此,基于命令来控制空调的气流,从而进行最佳的空调。 此外,红外对象检测器可以应用于摄像机或照相机,以更准确地确定到物体的距离。
    • 8. 发明申请
    • Method and apparatus for pump fault prediction
    • 泵故障预测方法与装置
    • US20080294382A1
    • 2008-11-27
    • US12149938
    • 2008-05-09
    • Ki-hwan LimTae-ho KimSeung-ki ChaeSang-gon LeeByoung-hoon Moon
    • Ki-hwan LimTae-ho KimSeung-ki ChaeSang-gon LeeByoung-hoon Moon
    • G21C17/00
    • H01L21/67288G05B23/024
    • Example embodiments relate to a method and apparatus for pump fault prediction. A method of predicting a pump fault according to example embodiments may include collecting data in real time for qualitative variables associated with a pump and a corresponding semiconductor fabricating process, wherein the pump is configured to create a vacuum in a chamber during the semiconductor fabricating process. Principal components may be identified based on the collected data. Principal components exerting a primary influence on the operation of the pump may be selected from the identified principal components. A management variable may be generated to represent variations of the selected principal components. The management-variable may be monitored in real time to predict a pump fault. A pump fault prediction apparatus according to example embodiments may include a sensor connected to a pump to collect data in real time for qualitative variables associated with the pump and a corresponding semiconductor fabricating process. A controller may be connected to the sensor and may determine that the pump is in an abnormal state if the management variable (e.g., T2 value) exceeds an upper control line.
    • 示例实施例涉及用于泵故障预测的方法和装置。 根据示例性实施例的预测泵故障的方法可以包括实时收集与泵和相应的半导体制造过程相关的定性变量的数据,其中所述泵被配置为在半导体制造过程期间在腔室中产生真空。 可以基于所收集的数据来识别主要组件。 对泵的运行产生主要影响的主要部件可以从所识别的主要部件中选择。 可以生成管理变量来表示所选择的主要组件的变化。 可以实时监控管理变量以预测泵故障。 根据示例实施例的泵故障预测装置可以包括连接到泵的传感器,以实时获取与泵相关的定性变量的数据以及相应的半导体制造过程。 如果管理变量(例如,T2值)超过上限控制线,控制器可以连接到传感器并且可以确定泵处于异常状态。
    • 9. 发明授权
    • Method and circuit for controlling vibrations in washing machine
    • 洗衣机振动控制方法及电路
    • US5720066A
    • 1998-02-24
    • US767859
    • 1996-12-17
    • Tae-ho Kim
    • Tae-ho Kim
    • D06F21/00D06F33/02D06F37/20D06F39/00D06F49/06G05D19/02
    • D06F37/203G05D19/02
    • A method for controlling vibrations occurring during a spin cycle of a washing machine includes the steps of: setting vibration patterns according to the vibration frequencies and period of the washing machine using piezoelectric effect; setting an optimal speed pattern of a motor of the washing machine with respect to each vibration pattern; detecting the vibration frequencies and period of the washing machine using the piezoelectric effect; obtaining a vibration pattern according to the detected vibration frequencies and period; and controlling the motor with the optimal speed pattern with respect to the obtained vibration pattern. Also, a vibration controlling circuit includes: a memory for storing vibration patterns and an optimal speed pattern with respect to each of the vibration pattern; a vibration sensor for generating a rectangular-wave signal using a piezoelectric effect; a first counter for counting the pulse occurrence frequencies of the rectangular-wave signal; a second counter for counting the pulse occurrence period of the rectangular-wave signal; and a microprocessor for collecting the output data of the first and second counters, obtaining a corresponding vibration pattern by comparing the collected data with the data stored in the memory, and controlling a motor of the washing machine. Thus, excessive vibrations in the washing machine can be prevented with high accuracy and precision and also the dehydration time and power consumption can be reduced.
    • 一种用于控制在洗衣机的旋转周期期间发生的振动的方法,包括以下步骤:根据使用压电效应的洗衣机的振动频率和周期来设定振动模式; 设置洗衣机的电动机相对于每个振动模式的最佳速度模式; 使用压电效应检测洗衣机的振动频率和周期; 根据检测到的振动频率和周期获得振动模式; 并以相对于所获得的振动模式的最佳速度模式来控制电动机。 此外,振动控制电路包括:存储器,用于存储相对于每个振动模式的振动模式和最佳速度模式; 用于使用压电效应产生矩形波信号的振动传感器; 用于对矩形波信号的脉冲发生频率进行计数的第一计数器; 用于对矩形波信号的脉冲发生周期进行计数的第二计数器; 以及微处理器,用于收集第一和第二计数器的输出数据,通过将收集的数据与存储在存储器中的数据相比较来获得相应的振动模式,以及控制洗衣机的电动机。 因此,可以以高精度和精度防止洗衣机中的过度振动,并且还可以降低脱水时间和功率消耗。