Power-off emergency guarantee alarm system

The invention relates to the technical field of automatic control, in particular to a power-off emergency guarantee alarm system. Comprising an input end assembly, an output end assembly and an energy storage assembly, and the input end assembly is used for extracting electric energy from a power grid in normal operation and converting the electric energy into electric energy suitable for instruments and meters through a transformer; the output end assembly is used for outputting the electric energy to an instrument; the energy storage assembly is used for providing energy when the power grid is abnormal so as to ensure that the instrument can work normally within a certain time, on the basis of the prior art, the equipment capable of meeting the charging requirement of a gap between the power grid abnormity and the auxiliary power generation equipment is provided, the energy storage assembly is used for storing energy, and power supply is conducted in time when the power grid is abnormal. Therefore, the prob