Owing to slow recessing and long travel distance of the UHF radio waves, this system can transmit the images in tunnel and implement active talk.
Owing to slow recessing and long travel distance of the UHF radio waves, this system can transmit the images in tunnel and implement active talk.
此系统利用无线高频电波在隧道中衰减慢、传输距离远的特性，实现了洞内图像的传输和洞内、外语音交互。