The present invention provides a parallel distributed computing-based multi-channel optical fiber grating vibration signal intelligent sensor system. The system includes a strain measurement Bragg grating, a semiconductor laser which is used for providing broadband laser to the Bragg grating, an optocoupler which is connected with the semiconductor laser and the Bragg grating, a beam splitting system which is connected with the optocoupler, receives Bragg reflected spectral signals and completes the spatial spreading and focusing of the spectral signals, a line-array image detector which is connected with the beam splitting system, carries out light intensity detection on the spectral signals of each pixel position in a high-speed scanning manner and outputs corresponding optoelectronic signals in a serial manner, a signal conditioning amplification and analog-to-digital conversion circuit which is connected with the line-array detector, an FPGA-based embedded demodulator which is connected with the signal conditioning amplification and analog-to-digital conversion circuit, realizes the fitting and interpolation operation of an spectral curve to obtain the peak coordinates of the spectral signals, and a bus interface module which provides a variety of kinds of digital buses.
Parallel distributed computing-based multi-channel optical fiber grating vibration signal intelligent sensor system