发明名称 MONITORING SYSTEM
摘要 <p>Monitoring System The monitoring system comprises a control device (16) operated by a battery (30). A monitoring circuit (31) is provided for the control of the battery voltage. Upon the connection or disconnection of the enabling switch (20), the detection circuit (24) produces a pulse by which the switch (37) of the monitoring circuit is caused to be conductive. The time of the battery check is restricted to the duration of said pulse. Thus, a permanent discharge of the battery (30) is excluded by the monitoring circuit. (Fig. 1).</p>
申请公布号 CA1242012(A) 申请公布日期 1988.09.13
申请号 CA19850480832 申请日期 1985.05.06
申请人 TELE-SECURITY-FOTO UEBERWACH 发明人 JANK, WILHELM;SCHNEIDER, KARL
分类号 G08B13/22;G08B13/14;G08B29/18;(IPC1-7):G08B29/00 主分类号 G08B13/22
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