Transformer multi-parameter fiber on-line monitoring system

The utility model relates to a transformer multi-parameter fiber on-line monitoring system which mainly comprises a semiconductor DFB laser device, an acoustic emission fiber sensor and a fiber Bragg grating temperature sensor, wherein the acoustic emission fiber sensor and the fiber Bragg grating temperature sensor are optically connected with the semiconductor DFB laser device; the acoustic emission fiber sensor is optically connected with a first photoelectric signal conversion and filtering device; the first photoelectric signal conversion and filtering device is electrically connected with a data acquisition card; the fiber Bragg grating temperature sensor is connected with a second photoelectric signal conversion and filtering device; the second photoelectric signal conversion and filtering device is electrically connected with an ARM (Advanced RISC (Reduced Instruction Set Computer) Machine) core board; and the data acquisition card and the ARM core board are electrically connected with an embedded motherboard.