摘要
结合不同频率的无线电波在煤矿井下巷道中的传输特性,对目前30多家企业生产的人员定位系统中的射频收发系统进行了归类比较,得出2.4 GHz的中心频率在抗衰减、提高速率、可用信道、传输距离等方面更容易满足煤矿安全的需要,并在此基础上研制了基于2.4 GHz的射频收发系统。重点介绍了本系统的硬件设计、天线设计、低功耗设计及软件设计。
Classification comparison was conducted to the radio frequency system used in mine person locating systems manufactured by more than 30 enterprises according to the transmission characteristics of radio wave in different frequency in coal mine roadways,it reached a conclusion that the central frequency of 2.4GHz can much easily meet the need for coal mine safety in anti-attenuation,rate improvement,usable channel and transmission distance,and on this basis,a radio-frequency receiving and transmitting system based on 2.4GHz was developed.This paper gives an emphatic description of the hardware,antenna,low-power consumption and software design of this system.
出处
《矿业安全与环保》
北大核心
2007年第6期37-38,41,共3页
Mining Safety & Environmental Protection
