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1.发明授权Electronic stepper to determine elevator car position, with automatic error correction and immunity from power failure 失效电子步进器确定电梯轿厢位置，具有自动纠错和免除电源故障
公开(公告)号：US5313026A
公开(公告)日：1994-05-17
申请号：US728669
申请日：1991-07-11
CPC分类号： B66B3/02 , B66B1/3492 , Y02B50/12
摘要： An electronic stepper for indicating floor position has initialization switches set by a serviceman for indicating a reference floor position. Whenever the car goes by the reference position in the hoistway, the corresponding reference floor is output. The electronic stepper may be mounted on a printed circuit board having a floor display for use by the serviceman. Various toggle switches may be provided for use by the serviceman in setting up and checking operation. Power checking means may be provided for initiating nonvolatile storage of the current floor position in the event of a brown-out or other power failure. Watchdog circuitry may be provided for checking on the health of the signal processor and a circuit for watching the watchdog may also be provided. A timed window signal may also be provided for indicating the end of the time at which a stopping sequence must be initiated in order to be able to stop at the approaching floor.
摘要翻译： 用于指示楼层位置的电子步进器具有由维修人员设定的用于指示参考楼层位置的初始化开关。 每当汽车在井道中的基准位置移动时，输出相应的参考楼层。 电子步进器可以安装在具有由维修人员使用的地板显示器的印刷电路板上。 可以提供各种拨动开关，以供维修人员在设置和检查操作中使用。 可以提供功率检查装置，用于在发生掉电或其他电源故障的情况下启动当前楼层位置的非易失性存储。 可以提供看门狗电路用于检查信号处理器的健康状况，还可以提供用于观看看门狗的电路。 也可以提供定时窗口信号以指示必须启动停止序列的时间的结束，以便能够在接近的地板处停止。
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