Automatic channel line indicator adopts dual-core algorithm of "Fractal Extreme Value Recognition + Linear Regression" to dynamically capture multi-cycle price trajectory: based on adaptive window technology (M1 to MN1 automatically matches 12-300 K-lines), it accurately locates the key high and low points to generate upper and lower rail trend boundaries, and the original center dotted line marks the balance between long and short in real time; Equipped with "dynamic bias correction engine", when breaking through the channel automatically trace 300 historical K line reconstruction trajectory, to eliminate lag offset; support Aqua theme color and 1-5 level line width customization, milliseconds memory management to ensure that multi-species switching zero residual, 4K / mobile DPI adaptive rendering; breakthrough integration of the "slope attenuation warning", the channel angle ＜25 ° automatically prompts consolidation signals for trend tracking, swing trading and institutional wind control. It provides high-precision fluctuation boundaries for trend tracking, swing trading and institutional risk control, and seamlessly connects to the EA strategy with the global variable interface, realizing the quantitative trading closed loop of "channel breakout→automatic order following".