随着社会经济飞速发展,城市建设中的大型超高层建筑越来越多,高度在300rn、400 m、500 m、600 m以上的建筑不断涌现。超高层建筑使用大量钢结构和混凝土,结构复杂,对室外无线对讲机信号造成严重屏蔽,特别是建筑的“核心筒”区域的电梯、消防楼梯、避难层,室外信号无法传递到这些重要区域,造成很多应急救援通信盲区。因此解决无线对讲 With the rapid socio-economic development, more and more large-scale super-tall buildings are being constructed in urban areas. Buildings with altitudes of 300m, 400m, 500m and 600m are emerging. The high-rise building uses a large amount of steel structure and concrete and has a complex structure that severely shields outdoor walkie-talkie signals. In particular, elevators, fire stairs, refuge floors and outdoor signals in the building’s “core barrel” area can not be delivered to these important areas , Causing many emergency rescue communications blind spots. So to solve wireless intercom