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1. 发明授权

US5596512A Method of determining the condition of a back-up battery for a real time clock 失效
标题翻译：确定实时时钟的备用电池的状态的方法
公开(公告)号：US5596512A
公开(公告)日：1997-01-21
申请号：US633328
申请日：1996-04-17
申请人： Albert C. K. Wong , Romuald M. Jurewicz , Michael D. McCormack
发明人： Albert C. K. Wong , Romuald M. Jurewicz , Michael D. McCormack
IPC分类号： G01R31/36 , G01R31/00
CPC分类号： G01R31/3648 , Y10T307/625
摘要： A method of determining the condition of a battery which backs up a real-time clock (RTC) when a main power supply fails or is disconnected, in a system which includes a controller having a volatile random access memory (VRAM) and a non-volatile random access memory (NVRAM). The method includes the steps of periodically storing the time value of the RTC in NVRAM, and periodically writing a predetermined data pattern in VRAM, while the main power supply adequately powers the real time clock. The method then includes the steps of detecting a power-down condition of the main power supply, and terminating the recording and writing steps when the detecting step detects power-down. Return of main power, or power-up, is then detected, with the data pattern stored in VRAM then being compared with the predetermined data pattern. When the patterns are not the same, indicating more than a transitory loss of main power, the difference between the time value indicated by the RTC upon power-up and the last time value of the RTC stored in NVRAM before power down is compared with a predetermined constant time value. When the RTC has not incremented by at least the predetermined constant time value the method includes the step of indicating that the back-up battery is bad.
摘要翻译：一种在包括具有易失性随机存取存储器（VRAM）和非易失性随机存取存储器（VRAM）的控制器的系统中确定在主电源故障或断开时备份实时时钟（RTC）的电池状况的方法，易失性随机存取存储器（NVRAM）。该方法包括以下步骤：在NVRAM中周期性地存储RTC的时间值，并且在主电源对实时时钟充分供电的同时，在VRAM中周期性地写入预定的数据模式。该方法包括以下步骤：检测主电源的掉电状态，并且当检测步骤检测到掉电时终止记录和写入步骤。然后检测主电源的返回或上电，将存储在VRAM中的数据模式与预定数据模式进行比较。当模式不一样时，指示主电源的暂时性损失超过上电时RTC所指示的时间值与断电前NVRAM中存储的RTC的上次时间值之间的差异与预定的恒定时间值。当RTC至少没有增加预定的恒定时间值时，该方法包括指示备用电池不良的步骤。

2. 发明授权

US5564285A Method of converting a time based data logger to a time and random event based data logger 失效
标题翻译：将基于时间的数据记录器转换为基于时间和随机事件的数据记录器的方法
公开(公告)号：US5564285A
公开(公告)日：1996-10-15
申请号：US310527
申请日：1994-09-22
申请人： Romuald M. Jurewicz , James E. Nixon , Albert C. K. Wong , Jay L. Hanson , Doyle G. Herrig
发明人： Romuald M. Jurewicz , James E. Nixon , Albert C. K. Wong , Jay L. Hanson , Doyle G. Herrig
IPC分类号： B60H1/32 , F25D29/00 , G05B23/02 , G07C5/08 , F25B49/02
CPC分类号： G07C5/085 , B60H1/3225 , B60H1/3232 , F25D29/003 , G05B23/027
摘要： A method of adding asynchronous logging of data relative to events into a time based data logger which stores operator initiated headers in a data array, as well as synchronously storing data relative to variables of a transport refrigeration unit at predetermined constant time intervals. The operator associated headers include a preamble having a predetermined number of data bytes which include a header designator and a digital code which identifies the specific type of header being entered. An event header is provided having a preamble which includes the same number of data bytes as the preamble of the operator associated headers, for each type of event to be asynchronously stored in the data array. The header designator associated with the operator associated headers is inserted into the preamble of each of the event headers. A digital code is provided which identifies each event header, and the digital code is inserted into the preamble of each of the event headers. A data field follows the preamble of each event header, with predetermined data being inserted into the data field when an event occurs. An event header is stored in the data array asynchronously, at the time the associated event occurs. Each event header is time stamped when stored in the data array, and data stored in the data array is downloaded to a predetermined device, including asynchronously stored event headers and synchronous data stored at predetermined time intervals.
摘要翻译：将相对于事件的数据的异步记录添加到基于时间的数据记录器中的方法，所述数据记录器将操作者发起的报头存储在数据阵列中，以及以预定的恒定时间间隔同步地存储与传送制冷单元的变量相关的数据。运营商相关联的报头包括具有预定数量的数据字节的前导码，其包括报头指示符和标识正在输入的报头的特定类型的数字代码。提供事件报头，其具有包括与操作者相关联的报头的前导码相同数量的数据字节的前同步码，用于要异步地存储在数据阵列中的每种类型的事件。与操作员相关联的报头相关联的报头指示符被插入每个事件报头的前导码中。提供了识别每个事件标题的数字代码，并且将数字代码插入每个事件标题的前导码中。数据字段跟随每个事件标题的前导码，当事件发生时，预定的数据被插入到数据字段中。在关联事件发生时，事件头将以异步方式存储在数据数组中。每个事件标题被存储在数据阵列中时间戳，存储在数据阵列中的数据被下载到预定的设备，包括以预定的时间间隔存储的异步存储的事件标题和同步数据。

3. 发明授权

US5499512A Methods and apparatus for converting a manually operable refrigeration unit to remote operation 失效
标题翻译：用于将手动操作的制冷单元转换为远程操作的方法和装置
公开(公告)号：US5499512A
公开(公告)日：1996-03-19
申请号：US422690
申请日：1995-04-14
申请人： Romuald M. Jurewicz , Albert C. K. Wong , Verlon J. Wirth
发明人： Romuald M. Jurewicz , Albert C. K. Wong , Verlon J. Wirth
IPC分类号： G05D23/19 , G05D23/00
CPC分类号： G05D23/1905
摘要： Methods and apparatus for converting a refrigeration unit having a manually controlled thermostat to remote operation via a data logger, without replacing the manually controlled thermostat. A set point temperature selector associated with the thermostat is fixed at a predetermined value, and a resistance temperature detector (RTD), which is normally connected to a temperature input of the thermostat, is disconnected. A set point temperature for a space conditioned by the refrigeration unit is selected via the data logger. The data logger monitors the temperature of the conditioned space, compares the temperature of the conditioned space with the set point temperature selected via the data logger, and determines an operating mode for the refrigeration unit which will cause the temperature of the conditioned space to be maintained in a predetermined range relative to the set point temperature selected via the data logger. A potentiometer is connected between the data logger and the temperature input of the thermostat. The data logger adjusts the resistance of the potentiometer to correspond to a temperature of the RTD, which, relative to the predetermined set point temperature fixed on the set point temperature selector associated with the thermostat, will cause the thermostat to implement the operating mode determined by the data logger.
摘要翻译：将具有手动控制的恒温器的制冷单元经由数据记录器转换成远程操作的方法和装置，而不需要更换手动控制的恒温器。与恒温器相关联的设定点温度选择器固定在预定值，并且通常连接到恒温器的温度输入端的电阻温度检测器（RTD）被断开。通过数据记录器选择由制冷单元调节的空间的设定点温度。数据记录器监视调节空间的温度，将调节空间的温度与通过数据记录器选择的设定点温度进行比较，并确定制冷单元的操作模式，这将导致调节空间的温度得以保持在相对于经由数据记录器选择的设定点温度的预定范围内。在数据记录器和恒温器的温度输入端之间连接一个电位器。数据记录器调节电位计的电阻，以对应于RTD的温度，RTD相对于固定在与恒温器相关联的设定点温度选择器上的预定设定点温度，将使恒温器实现由数据记录器。

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