In the ultrasonic detector, the detected 3Dobject image is displayed as a 3Ddisplay method by plane display. Three dimensional reconstruction refers to the use of ultra wide-band technology, on the basis of a large number of high-definition two-dimensional image accurate data provided, to make the collected image signal data characteristic and systematic, so as to form a 3Ddisplay. Its unique control signal function will make a series of 3Dimages fully displayed on the screen.