Used car AI performance inspection system based on acoustic data analysis, and processing method therefor

Used car AI performance inspection processing method based on acoustic data analysis, the method comprising steps of;

• (a) a performance checklist generation module inquires detailed car model information of the used car;
• (b) the performance checklist generation module collects unstructured data including sounds generated from mechanical or electronic devices of the used car using an acoustic sensor;
• (c) the performance checklist generation module performs an AI performance inspection by diagnosing the collected unstructured data through a computer analysis and generating an AI performance checklist by reflecting results of the AI performance inspection;
• and
• (d) an unstructured data transmission unit provides the AI performance checklist generated by the performance checklist generation module to a customer by displaying the AI performance checklist on a terminal device of the customer,
• wherein the step (c) includes steps of;
• a visualization processing procedure that generates visualization processed graphics from the results of computer analysis of the unstructured data and displays the graphics on the AI performance checklist;
• performing a segmentation analysis processing procedure that divides the acoustic data into frequency bands according to predetermined standards, and scores for a state of each frequency band, and displays the scores on the AI performance checklist,
• wherein, in the step (c), the visualization processed graphics are spectrograms that show changes in time, frequency, and amplitude of the acoustic signal in terms of concentration or color difference,
• wherein the spectrograms for each of a normal performance state and a deteriorated performance state of the used car are generated and displayed on the AI performance checklist.