Method and apparatus for monitoring battery energy level
    1.
    发明授权
    Method and apparatus for monitoring battery energy level 失效
    监测电池能级的方法和装置

    公开(公告)号:US3899732A

    公开(公告)日:1975-08-12

    申请号:US38897573

    申请日:1973-08-16

    Applicant: STATITROL CORP

    Inventor: STABY PAUL A

    CPC classification number: G08B29/181 G01R19/16542 G01R31/3631 G01R31/3682

    Abstract: A fire detection apparatus operates to self-monitor the energy level of a cell or battery powering it by periodically comparing a first signal, which is a function of the unloaded battery output voltage, with a second signal, which is a function of the battery output voltage when loaded, to generate a difference signal. The difference signal is characterized by only exceeding a predetermined magnitude whenever the energy stored in the battery is below a selected energy level and is used to indicate impending battery failure by driving a different alarm or the same alarm in a manner noticeably different from the alarm signal generated in response to the detection of a fire.

    Abstract translation: 火灾检测装置操作以通过周期性地比较作为无电池电池输出电压的函数的第一信号与作为电池输出的函数的第二信号来自行监视对其供电的电池或电池的能量水平 加载时产生差分信号。 差分信号的特征在于,只要存储在电池中的能量低于所选择的能量水平,并且通过以与警报信号明显不同的方式驱动不同的警报或相同警报来用于指示即将发生的电池故障 响应于检测到火而产生。

    METHOD AND APPARATUS FOR MONITORING BATTERY ENERGY LEVEL

    公开(公告)号:CA1013811A

    公开(公告)日:1977-07-12

    申请号:CA206617

    申请日:1974-08-08

    Applicant: STATITROL CORP

    Inventor: STABY PAUL A

    Abstract: A fire detection apparatus operates to self-monitor the energy level of a cell or battery powering it by periodically comparing a first signal, which is a function of the unloaded battery output voltage, with a second signal, which is a function of the battery output voltage when loaded, to generate a difference signal. The difference signal is characterized by only exceeding a predetermined magnitude whenever the energy stored in the battery is below a selected energy level and is used to indicate impending battery failure by driving a different alarm or the same alarm in a manner noticeably different from the alarm signal generated in response to the detection of a fire.

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