The invention relates to an aircraft electromechanical
system health management method based on power
line spread spectrum carrier, which is used for low-cost management of the aircraft electromechanical
system health. Its technical solution is to realize the collection of multi-category information through the power
line spread spectrum carrier, adopting the method of decentralized collection and group number management; using the power line carrier as the communication mode, the
multiplexing of the
power grid and the communication network is realized by using time-sharing transmission to realize different types of information. The transmission of data reduces the cost of health management of the aircraft electromechanical
system; the use of FPGA hardened
spread spectrum communication technology improves the
confidentiality and reliability of the system. At the same time,
fast Fourier transform and neural network technology are used to realize the fusion
processing of data in DSP, so as to estimate the state of the aircraft electromechanical system and further predict the fault. At the same time, the
processing results are transferred to FLASH to facilitate off-line
smoothing of data, which provides a basis for
aircraft maintenance before take-off.