A switching control scheme of multiple sensor channels in distributed fiber Bragg grating sensor network is brought forward based on Ethernet passive optical network(EPON),in which the optical switches of multiple sensor channels are controlled by different optical network units(ONUs) in one EPON system.As a result,all of the optical switches could execute switching synchronously based on the strict time synchronization in the EPON system.Therefore,the wavelength demodulation module and different FBG sensor...