it is difficult to arrange data lines in electronic factories. Electronic products, such as data cable and cable arrangement, usually need very fine manufacturing technology, precise control of the length and diameter of wires to ensure the accuracy and stability of signal transmission, and fine welding and connection technology to ensure the reliability and durability of connection, so it is difficult to cable arrangement of data cables in electronic factories. Data line is a kind of cable or connecting line for transmitting data signals, which is used to connect data transmission between different devices or components. It is usually composed of conductor, insulating layer and external protective layer.