The invention relates to the technical field of
data processing of multi-
source data fusion, and discloses an investigation
data integration analysis method and
system based on multi-
source data fusion. According to the scheme, a multi-source sensor is deployed, original
voltage is collected, and
standardization is carried out in each
physical quantity range; constructing temperature, pressure and vibration three-dimensional observation and states based on a unified
time index, and setting initial values; recursive prediction is carried out by using a constant preserving model; counting a multi-measuring-point variance in a static window, determining observation
noise in combination with the minimum quantization step size, and calculating fusion
gain; linearly updating and correcting
covariance, and then carrying out dimension-by-dimension amplitude limiting according to an abnormal upper limit; carrying out space averaging on the three-dimensional results of the multiple measuring points at each sampling moment, and carrying out
rollback if necessary; and a fusion sequence and a
statistical report are formed in the whole cycle. According to the method, the data scale is unified, subjective parameters and computing power burden are reduced, adaptive
noise modeling along with the environment is achieved, stable
noise suppression and
fault resistance are achieved, and continuous output and comparable analysis are guaranteed.