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    • 9. 发明授权
    • Furnace control with safety circuit and non-volatile memory
    • 炉控制带安全电路和非易失性存储器
    • US09500366B2
    • 2016-11-22
    • US14097978
    • 2013-12-05
    • Andrew S. KadahWeidong PanBenjamin A. Freer
    • Andrew S. KadahWeidong PanBenjamin A. Freer
    • F23Q7/24F24D19/10F24D5/02G05B15/02F23N5/24F27B9/40
    • F23Q7/24F23N5/242F23N2023/04F23N2023/08F23N2025/04F23N2025/08F23N2031/10F23N2031/20F24D5/02F24D19/1084F27B9/40G05B15/02
    • A furnace controller circuit includes a microprocessor with input ports and output ports including ports to issue control signals for actuation of inducer, gas burner, and furnace blower. A temperature-actuated limit switch commences a furnace shut-down sequence when the temperature of the furnace heat exchanger exceeds a predetermined limit temperature, and then resets to permit a turn-on sequence. An LED visible fault indicator is coupled to the microprocessor to provide visible fault messages. A non-volatile memory device coupled with the microprocessor is operative to store fault indications when present. In the event of power restoration after power failure, the limit switch status and other fault status are maintained. A lockout period is computed based on length of furnace run time until fault and recent fault history. Limit switch and other safety faults are recorded and these can be weighted and ranked based on age of each fault occurrence. The stored fault data can be used to identify erratic furnace operations, such as short cycling.
    • 炉控制器电路包括具有输入端口和输出端口的微处理器,该输出端口包括用于发出用于致动感应器,气体燃烧器和炉式鼓风机的控制信号的端口。 当炉热交换器的温度超过预定的极限温度时,温度启动的限位开关开始关闭炉,然后复位以允许开启顺序。 LED可见故障指示器耦合到微处理器以提供可见的故障消息。 与微处理器耦合的非易失性存储器件当存在时存储故障指示。 断电后电源恢复时,保持限位开关状态和其他故障状态。 根据炉子运行时间长短直到故障和最近的故障历史来计算锁定时间。 记录限位开关和其他安全故障,可根据每个故障发生的年龄进行加权和排序。 存储的故障数据可用于识别不稳定的炉操作,例如短循环。
    • 10. 发明授权
    • Lock-setting thermostat with flash-memory key
    • 带闪存锁的锁定恒温器
    • US09008846B2
    • 2015-04-14
    • US13557556
    • 2012-07-25
    • Weidong PanMichael P. MuenchKevin P. Jobsky
    • Weidong PanMichael P. MuenchKevin P. Jobsky
    • G05B19/00G05D23/19F24F11/00
    • G05D23/1902F24F11/52
    • Property-management or lock-setting thermostats have maximum and minimum set points locked in to prevent abuse of management-provided heating and/or air conditioning. An ePROM or similar internal memory device stores heating and cooling limit parameters that are set in by a technician at the time of installation. A plug-in flash memory module contains an unlock code to match the unlock code stored in said ePROM, to unlock the thermostat and allow the settings to be adjusted; when said flash memory module is removed the thermostat reverts to its lock condition. The thermostat can also respond to unusual rates of change of temperature to block furnace or A/C operation temporarily.
    • 物业管理或锁定设置的恒温器具有锁定的最大和最小设定点,以防止滥用管理提供的加热和/或空调。 ePROM或类似的内部存储设备存储技术人员在安装时设置的加热和冷却限制参数。 插入式闪存模块包含解锁代码以匹配存储在所述ePROM中的解锁代码,解锁恒温器并允许调整设置; 当所述闪存模块被移除时,恒温器恢复到其锁定状态。 恒温器也可以临时响应异常的温度变化率,阻止炉膛或空调操作。