Real-time pattern recognition of one-dimensional waveform often requires both rapidity and accuracy. This paper presents a one-dimensional wave separation coding method, which simulates the way of human to understand figure, in order to carry through the graphical analysis of the wave crest or trough and their amounts, and to form pattern data-base of the waveform code. The model can make pattern match fast. This method is applied to the electromagnetic induction waveform identification of the road vehicle...