Power distribution terminal hot plug module monitoring device based on frequency domain analysis

The invention relates to the technical field of power distribution monitoring, and discloses a frequency domain analysis-based power distribution terminal hot plug module monitoring device, which is characterized in that a magnetoelectric sensing array is arranged in a hot plug box body, and three magnetoelectric sensing elements for acquiring frequency domains are arranged through the magnetoelectric sensing array; three magnetoelectric sensing elements are used for respectively acquiring magnetic signals of functional modules meeting center frequencies of acquisition frequency domains of the magnetoelectric sensing elements, so that the magnetic signals of the functional modules with different center frequencies are accurately acquired, the magnetic signals are converted into voltage signals, the voltage signals are amplified and filtered, the sensitivity of the voltage signals is improved, and the sensitivity of the voltage signals is improved. And the voltage signal is compared with the preset voltage thr