煤矿智能化与矿用5G

Coal mine intelligence and mine-used 5G

针对煤矿井下电气防爆、无线传输衰减大等特点,分析了矿用5G技术和适用范围:矿用5G宜采用本质安全型防爆;用于控制的矿用5G应具有较强的抗干扰能力;采煤工作面和掘进工作面地面远程控制宜选用矿用5G;煤矿井下车辆无人驾驶地面远程控制宜选用矿用5G;没有针对矿井移动通信特点研发的矿用5G性价比低于矿用WiFi移动通信系统;严禁用矿用5G移动通信系统替代矿用有线调度通信系统;没有针对煤矿安全监控特点研发的矿用5G不能替代煤矿安全监控系统;没有针对矿井动目标精确定位特点研发的矿用5G定位精度低于矿用UWB精确定位系统;450~6000 MHz频率范围的矿用5G传输速率低于矿用WiFi6;没有针对煤矿井下固定设备监控特点研发的矿用5G可靠性低于矿用有线监控系统。指出了亟需针对煤矿井下安全生产特点,研发矿用5G,而不仅仅是对现有地面5G产品进行防爆改造。

Aiming at characteristics of electrical explosion-proof and large wireless transmission attenuation in underground coal mine,5G technology and its application scope were analyzed.Mine-used 5G should adopt intrinsically safe explosion-proof.Mine-used 5G for control should have strong anti-interference ability.Mine-used 5G should be used for remote control of coal mining face and tunneling face.Mine-used 5G should be used for ground remote control of unmanned vehicle in underground coal mine.Mine-used 5G that has not been developed for characteristics of mine mobile communication is less cost-effective than mine-used WiFi mobile communication system.It is strictly forbidden to replace mine-used wired dispatching communication system with mine-used 5G mobile communication system.Mine-used 5G that is not developed for coal mine safety monitoring characteristics cannot replace coal mine safety monitoring system.Positioning accuracy of mine-used 5G that has not been developed for precise positioning characteristics of mine moving target is lower than that of mine-used UWB precision positioning system.Transmission rate of mine-used 5G in frequency range of 450-6000 MHz is lower than that of mine-used WiFi6.Reliability of mine-used 5G that is not developed for monitoring characteristics of fixed equipment in underground coal mine is lower than that of mine-used wired monitoring system.It is urgent to research and develop mine-used 5G based on characteristics of safe production in coal mine,not just for explosion-proof transformation of existing ground 5G products.