公开(公告)号：US5774425A

公开(公告)日：1998-06-30

申请号：US749686

申请日：1996-11-15

申请人： Andre Ivanov ,  Alan Arthur Lowe

发明人： Andre Ivanov ,  Alan Arthur Lowe

IPC分类号： G07C3/00 ,  A61C7/00 ,  G07C3/04 ,  G04B47/00 ,  G01K1/02 ,  G04F8/00

CPC分类号： A61C7/00 ,  G07C3/04

摘要： A low power consumption system for monitoring time of use of appliance incorporates a controller and a temperature sensor that is activated by the controller at intervals of X minutes to determine the temperature of the sensor. The sensed temperature is then compared with a threshold temperature and a counter is turned ON to accumulate time if the sensed temperature is at the desired level or turned OFF when the sensed temperature is not in the desired range. The counter remains in its ON or OFF position until the sensed temperature causes the counter to shift to the opposite position to the one it is in at that time. The counter receives oscillations from the oscillator which is continuously operating and only counts those oscillations when the counter is set in the ON position.

摘要翻译： 用于监控设备使用时间的低功耗系统包括控制器和温度传感器，由控制器以X分钟间隔激活，以确定传感器的温度。 然后将感测到的温度与阈值温度进行比较，并且如果感测到的温度处于期望水平，则计数器被打开以累积时间，或者当感测到的温度不在期望的范围内时将其关闭。 计数器保持在其ON或OFF位置，直到感测到的温度导致计数器转移到与之相反的位置。 计数器从连续工作的振荡器接收振荡，只有当计数器设置在ON位置时才对这些振荡进行计数。