Abstract: According to an apparatus and a method for detecting a cable abnormality based on reflectometry utilizing artificial intelligence according to the exemplary embodiment of the present disclosure, it is possible to monitor a state of the cable which connects the nodes in real time by inserting a result of the time-frequency domain reflectometry into a variational autoencoder (VAE) which is one of unsupervised learning.

Abstract: According to an apparatus and a method for detecting a cable abnormality based on reflectometry utilizing artificial intelligence according to the exemplary embodiment of the present disclosure, it is possible to monitor a state of the cable which connects the nodes in real time by inserting a result of the time-frequency domain reflectometry into a variational autoencoder (VAE) which is one of unsupervised learning.

Abstract: An apparatus and a method for detecting a fault location of an underground cable are proposed. The apparatus includes: an optimal reference signal design unit configured to design a reference signal for detecting the fault location of the underground cable considering propagation characteristics of the underground cable according to a time-frequency domain reflectometry method; a signal application and acquisition unit configured, as the designed reference signal is generated and applied to the underground cable, to acquire the reference signal applied to the underground cable and a reflected signal of the applied reference signal; and a data analysis unit configured to analyze whether a fault location of the underground cable exists according to a decision on similarity between the reference signal and the reflected signal after obtaining a time-frequency domain energy distribution for the acquired reference signal and reflected signal.

Abstract: A reflected-wave processing apparatus according to one embodiment of the present invention may comprise: a reference signal generation unit for applying, to a cable, a first reference signal, the frequency of which increases over time, and a second reference signal, the frequency of which decreases over time; a reflected-signal acquisition unit for acquiring a first reflected signal and a second reflected signal which are reflected from the cable upon applying the first and second reference signals thereto; and a signal analysis unit for analyzing the first and second reflected signals.

Abstract: An apparatus and a method for detecting a fault location of an underground cable are proposed. The apparatus includes: an optimal reference signal design unit configured to design a reference signal for detecting the fault location of the underground cable considering propagation characteristics of the underground cable according to a time-frequency domain reflectometry method; a signal application and acquisition unit configured, as the designed reference signal is generated and applied to the underground cable, to acquire the reference signal applied to the underground cable and a reflected signal of the applied reference signal; and a data analysis unit configured to analyze whether a fault location of the underground cable exists according to a decision on similarity between the reference signal and the reflected signal after obtaining a time-frequency domain energy distribution for the acquired reference signal and reflected signal.

Abstract: A reflected-wave processing apparatus according to one embodiment of the present invention may comprise: a reference signal generation unit for applying, to a cable, a first reference signal, the frequency of which increases over time, and a second reference signal, the frequency of which decreases over time; a reflected-signal acquisition unit for acquiring a first reflected signal and a second reflected signal which are reflected from the cable upon applying the first and second reference signals thereto; and a signal analysis unit for analyzing the first and second reflected signals.