工频电场抑制的在线式载电磁环境在线监测平台

Online monitoring platform for online electromagnetic environment with power frequency electric field suppression

由于电磁环境监测仪易受到工频电场干扰,导致监测结果不精准,为此,提出了工频电场抑制的在线式载电磁环境在线监测平台设计。监控服务器嵌入了独立的太阳能电源,避免了外部供电线缆的变形。采用OS-LF-01高频电磁场探头,避免湿度对测量结果的影响。利用射频识别数据采集器,实时采集数据,通过LED显示屏展示测量数据。用倒三角排列法计算工频电磁场,抑制磁场强度。将GPS定位与基站定位误差结合,对电磁干扰进行在线监测。由实验结果可知,该平台正常情况下监测结果为9 V/m,噪声干扰情况下监测结果为范围为7~9 V/m,与实际监测值9.266 V/m最接近,说明监测结果较为精准。

Because the electromagnetic environment monitor is easily interfered by the power frequency electric field,the monitoring result is inaccurate.Therefore,the design of online electromagnetic environment online monitoring platform with power frequency electric field suppression is proposed.Independent solar power is embedded in the monitoring server,which avoids the deformation of external power supply cables.OS-LF-01 high frequency electromagnetic field probe is used to avoid the influence of humidity on the measurement results.The radio frequency identification data collector is used to collect data in real time,and the measured data is displayed through the LED display screen.The inverted triangle arrangement method is used to calculate the power frequency electromagnetic field and suppress the magnetic field intensity.Combining GPS positioning with base station positioning error,electromagnetic interference can be monitored online.According to the experimental results,the monitoring results of the platform are 9 V/m under normal conditions and 7~9 V/m under noise interference,which is closest to the actual monitoring value of 9.266 V/m,indicating that the monitoring results are accurate.