The invention relates to the technical field of
big data analysis, in particular to a contact defect detection
system and method based on
big data, and the
system comprises a multi-dimensional data capture module, a
time sequence analysis module, a trend evaluation and anomaly recognition module, a future
state prediction module, and a fault classification and diagnosis module. According to the invention, by deeply capturing and screening contact operation state data, the accuracy of input data is ensured, abnormal interference of
contact resistance is avoided, the data validity is improved, current
impact fluctuation points are identified, the sensitivity to operation abrupt change is enhanced, the accuracy of
time sequence analysis is ensured, long-term offset is tracked, the wear identification capability is improved, and the future state is accurately predicted. The method is advantaged in that
maintenance plan precision is improved,
contact pressure reduction trend is analyzed, fault classification is refined, defect identification accuracy is improved, data screening, trend tracking, offset characteristic calculation and fault classification are optimized, accurate detection is realized, and equipment reliability and
operation safety are improved.