摘要
手台等应急通信装备在建筑火灾环境下使用会出现信号时断时有的现象.通过全尺寸实火试验分析和验证了建筑火灾环境对无线信号传输的衰减影响,修正了建筑火灾环境下无线信号传输常规模型的路径损耗指数,在无烟环境取值范围的基础上增大0.2～0.5,增强了无线信号常规传输模型在建筑火灾环境下的适用性.
Hand sets and other emergency communication equip- ments interrupt occasionally in building fire environment. Based on the real full-scale fire tests, this paper analyzes and verifies the effect on wireless signal transmission in building fire envi- ronment, and revises the path loss exponent of wireless signal transmission conventional model in building fire environment. The path loss exponent should increases the range of 0.2 to 0.5 so that the applicability of the conventional model is enhanced when it is used in building fire environment.
出处
《消防科学与技术》
CAS
北大核心
2015年第8期1056-1058,共3页
Fire Science and Technology
关键词
建筑火灾
应急通信
无线信号
路径损耗指数
building fire
emergency communication
wireless signal
the path loss exponent
