Automatic charging power supply device and method capable of isolating power frequency

Abstract

The invention discloses an automatic charging power supply device and method capable of isolating power frequency. The device comprises more than two groups of batteries, each group of batteries is electrically connected with the common end of a charging relay and a power supply relay; the normally closed end of each charging relay is not connected with a wire, and the normally open end of each charging relay is electrically connected with a charger; the common end in each charging relay is electrically connected with the corresponding normally closed end by default; and each relay control coil can control the corresponding common end to be switched between the electric connection with the corresponding normally open end or the corresponding normally closed end. The normally closed ends of the power supply relays are electrically connected with a power supply circuit; the normally open ends of the power supply relays are not connected with any wires; the common end in each power supply relay is electrically connected with the corresponding normally closed end by default; each relay control coil can control the corresponding common end to be switched between the electric connection with the corresponding normally open end or the corresponding normally closed end; and the relay control coils of the charging relays and the power supply relays are electrically connected with a main controller of a monitoring unit and controlled by the main controller. According to the power supply device disclosed by the invention, the batteries are adopted for power supply, so that the power frequency isolation requirement is met; the batteries do not need to be manually replaced; and power supply support is provided for really realizing unattended signal monitoring.

Description

technical field [0001] The invention belongs to the field of power supply devices and methods, in particular to an automatic charging power supply device and method for isolating power frequency in the field, which can be used to supply power for signal acquisition equipment in unattended measurement stations. Background technique [0002] The monitoring signal of the atmospheric noise and electromagnetic signal monitoring station contains power frequency signal frequency. Therefore, except for the external signal received by the sensor, the monitoring equipment is not allowed to enter the power frequency interference from the power supply, that is, the isolated power frequency power supply is required. [0003] The easiest way to isolate power frequency is to use battery power. Usually two batteries are used, which are replaced manually so that they can be charged and powered in turn. [0004] This power supply method meets the absolute requirement of isolated power freque...

AI Technical Summary

Problems solved by technology

[0004] This power supply method meets the absolute requirement of isolated power frequency, but it also has a serious disadvantage: due to the need to manually replace the battery, it is impossible to achieve true unattended operation

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