Add a raster image in arcmap, add a jpg image here, open the spatial analysis tool-Reclassify-Reclassify in the toolbox, click Classify, divide the original image into two colors, and then click OK. So as to facilitate automatic vectorization. According to the classification result, open arcscan extension module and create linear shapfile file. Using ArcScan and toolbar, you can directly generate vectorized line installation elements.