Flat traveling optical fibers can be suspended in machine rooms, shafts, and elevator cars, achieving real-time transmission of high bandwidth audio, video, and other digital content between the elevator and the control room. This has led to the construction of a 100 Mbps high-speed network in the elevator car, which is currently a commonly used solution for multimedia and dynamic LCD display in elevators. It can also be used in the installation of gantry crane equipment to achieve remote monitoring and image transmission, Equipment signal control.