北斗终端电磁环境对典型电火工品运输安全性的影响

危险品运输车上的北斗导航终端采用无线电通讯与后台监控系统进行数据传递,会发射一定功率的无线电波,对电火工品的运输安全构成威胁。为此,开展北斗车载终端射频辐射场对典型电火工品的危害研究。选取 DD4.5 电点火管作为典型电火工品,通过电火工品射频感度试验,得到 DD4.5 电点火管与北斗车载终端的安全距离;通过计算最小安全距离上的辐射场强阈值,对 DD4.5 电点火管进行辐射敏感度安全性验证。结果表明 DD4.5 电点火管与终端天线之间的安全距离为大于或等于 1.4m。

The Influence of BDS Electromagnetic Environment on the Transportation Safety of Electric Explosive Device

The BDS terminal on the dangerous transport vehicle, which use radio communication and background monitoring system for data transmission, can emit radio waves of a certain power and pose a threat to the transportation safety of electric explosive device. Therefore, the research on the harm of BDS vehicle terminal radiation field to typical electric explosive device was carried out, and DD4.5 electric igniter was selected as typical electric explosive device. The safe distance between DD4.5 electric igniter and BDS terminal was obtained through radio frequency sensitivity test. The radiation field intensity threshold on the minimum safe distance was calculated to verify the radiation sensitivity safety of DD4.5 electric igniter. It is found that the safe distance between DD4.5 electric igniter and BDS terminal antenna is more than or equal to 1.4m.