G - Physics – 08 – G
Patent
G - Physics
08
G
340/100, 340/31,
G08G 1/123 (2006.01) G01R 31/36 (2006.01)
Patent
CA 1137586
ABSTRACT The invention relates to a device for automatically monitoring the charge state of a power supply which is independent of the mains system. To this end, a monitoring sensor is associated with the power supply, which is in the form of primary batteries or accumulators charged by solar cells, the said sensor having a threshold response for the release of a warning signal, the said threshold being located at a specifically adjustable value above the minimal voltage required for trouble-free operation. The result of the voltage measurement, carried out at each interrogation of the interrogating unit, is passed to a message register as a monitoring signal.
325742
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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