The PED System is an ultra low frequency “through the earth ”paging control and remote blasting system.
The PED System is an ultra low frequency “through the earth ”paging control and remote blasting system.
PED井下无线通讯与急救系统是世界上唯一一套可实现超低频信号穿透岩层进行传输的无线急救通讯系统。