The invention discloses a thermal power
plant multi-source heterogeneous
data quality evaluation method and
system, and relates to the technical field of data evaluation, and the method comprises the steps: carrying out the comparison based on an alignment
path length, a preset
path length threshold value and a deviation threshold value, obtaining a consistent data flow and a conflict data flow, the method comprises the following steps: respectively calculating an accuracy index, an integrity index and a timeliness index for consistent data flow and equipment
log data, obtaining a three-dimensional quality index matrix, weighting the three-dimensional quality index matrix through an
entropy weight method, and calculating a comprehensive
quality score of the multi-source heterogeneous data in combination with a real-time
weight value of the multi-source heterogeneous data, and comparing the comprehensive
quality score of the multi-source heterogeneous data with a preset
score threshold to obtain a quality
evaluation result, and directly generating a conflict
alarm signal for a conflict data flow. According to the evaluation method based on the data indexes, not only is the sensitivity to data logic contradictions enhanced, but also
context awareness and weight optimization in the evaluation process are realized.