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    Method and apparatus for refrigeration system control having electronic evaporator pressure regulators
    62.
    发明授权
    Method and apparatus for refrigeration system control having electronic evaporator pressure regulators 有权
    具有电子蒸发器压力调节器的制冷系统控制方法和装置

    公开(公告)号：US06449968B1

    公开(公告)日：2002-09-17

    申请号：US10061703

    申请日：2002-02-01

    申请人： Abtar Singh ,  Jim Chabucos ,  Paul Wickberg ,  John Wallace

    发明人： Abtar Singh ,  Jim Chabucos ,  Paul Wickberg ,  John Wallace

    IPC分类号： F25B3902

    CPC分类号： F25B41/043 ,  F25B5/02 ,  F25B41/062 ,  F25B49/022 ,  F25B2400/075 ,  F25B2400/22 ,  F25B2600/0272 ,  F25B2700/02 ,  F25B2700/1933 ,  F25B2700/21163 ,  F25D2500/04 ,  F25D2700/12 ,  F25D2700/123 ,  F25D2700/16

    摘要： A method and apparatus for refrigeration system control is provided. The refrigeration system includes a plurality of circuits with each circuit having at least one refrigeration case. An electronic evaporator pressure regulator is in communication with each circuit and is operable to control the temperature of the corresponding circuit. A plurality of compressors are also provided with each compressor forming a part of a compressor rack. A pressure sensor is used for measuring the suction pressure of the compressor rack. A sensor is in communication with each circuit and is operable to measure a parameter from each circuit. A controller controls each electronic evaporator pressure regulator and the suction pressure based upon the measured parameters from each circuit.

    摘要翻译： 提供了一种用于制冷系统控制的方法和装置。 制冷系统包括多个电路，每个电路具有至少一个制冷箱。 电子蒸发器压力调节器与每个电路连通并且可操作以控制相应电路的温度。 还设置有多个压缩机，每个压缩机形成压缩机架的一部分。 压力传感器用于测量压缩机机架的吸入压力。 传感器与每个电路通信，并且可操作以从每个电路测量参数。 控制器根据每个电路的测量参数来控制每个电子蒸发器压力调节器和吸入压力。

    Wireless method and apparatus for monitoring and controlling food temperature
    63.
    发明授权
    Wireless method and apparatus for monitoring and controlling food temperature 有权
    用于监测和控制食物温度的无线方法和装置

    公开(公告)号：US06378315B1

    公开(公告)日：2002-04-30

    申请号：US09702993

    申请日：2000-10-31

    申请人： Scott Michael Gelber ,  John Aggers ,  Abtar Singh

    发明人： Scott Michael Gelber ,  John Aggers ,  Abtar Singh

    IPC分类号： F25D2100

    CPC分类号： F25D29/00 ,  F25B41/043 ,  F25B2400/075 ,  F25B2400/22 ,  F25B2600/07 ,  F25D2500/04 ,  F25D2700/10 ,  F25D2700/12 ,  F25D2700/123 ,  F25D2700/16 ,  G01K2007/422 ,  G05D23/1905 ,  G06F19/00

    摘要： A system and method for controlling refrigeration including a temperature sensor operable to measure a temperature from a refrigeration case and a transceiver in communication with the temperature sensor and operable to wirelessly transmit data. A repeater receives the wirelessly transmitted data and further wirelessly transmits the data to a receiver. A controller in communication with the receiver controls the refrigeration system based upon the wirelessly transmitted data from the refrigeration case. The refrigeration case also includes a mode switch for suspending temperature reading and control for a period of time. For example, the mode switch can be used by an operator during cleaning or maintenance of the refrigerator case. Temperature control algorithms are used by the controller, and include: dead-band range (DB), proportional/integral (PI), proportional/integral/differentiation (PID) and fuzzy-logic (FL).

    摘要翻译： 一种用于控制制冷的系统和方法，包括可操作以测量来自冷藏箱的温度的温度传感器和与温度传感器通信的收发器，并且可操作以无线地传输数据。 中继器接收无线发送的数据，并进一步将数据无线发送到接收机。 与接收器通信的控制器基于来自制冷箱的无线传输的数据来控制制冷系统。 制冷箱还包括用于暂停温度读取和控制一段时间的模式开关。 例如，在清洁或维护冰箱的情况下，操作者可以使用模式开关。 温度控制算法由控制器使用，包括：死区范围（DB），比例/积分（PI），比例/积分/微分（PID）和模糊逻辑（FL）。

    SYSTEM AND METHOD FOR MONITORING A COMPRESSOR OF A REFRIGERATION SYSTEM
    66.
    发明申请
    SYSTEM AND METHOD FOR MONITORING A COMPRESSOR OF A REFRIGERATION SYSTEM 有权
    制冷系统压缩机监控系统及方法

    公开(公告)号：US20090077983A1

    公开(公告)日：2009-03-26

    申请号：US12327273

    申请日：2008-12-03

    申请人： Abtar Singh ,  Thomas J. Mathews ,  Stephen T. Woodworth

    发明人： Abtar Singh ,  Thomas J. Mathews ,  Stephen T. Woodworth

    IPC分类号： F25B49/02 ,  F25B49/00 ,  F25D3/00

    CPC分类号： F25B49/005 ,  F25B2400/075 ,  F25B2400/22 ,  F25B2500/19 ,  F25B2600/07

    摘要： A system includes a compressor temperature sensor that generates a compressor discharge temperature signal corresponding to a compressor of a refrigeration system, a compressor pressure sensor that generates a compressor discharge pressure signal corresponding to the compressor, and a controller processing the signals over a predetermined time period. The processing includes calculating a discharge saturation temperature based on the compressor discharge pressure signal, calculating compressor superheat data based on the compressor discharge temperature signal and the discharge saturation temperature, accumulating the compressor superheat data over the predetermined time period, and comparing the accumulated compressor superheat data to a predetermined threshold. The controller generates an alarm indicating a compressor fault based on the comparing.

    摘要翻译： 一种系统包括：压缩机温度传感器，其生成与制冷系统的压缩机相对应的压缩机排出温度信号;压缩机压力传感器，其生成与压缩机对应的压缩机排出压力信号;以及控制器，其在预定时间段内处理所述信号 。 该处理包括基于压缩机排气压力信号计算排出饱和温度，基于压缩机排放温度信号和排放饱和温度计算压缩机过热数据，在预定时间段内累积压缩机过热数据，并比较累积的压缩机过热 数据到预定阈值。 控制器根据比较器产生指示压缩机故障的报警。