Discussion On Current Situation And Protective Measures Of Electromagnetic Radiation Pollution In 4G-LTE Base Station Of Zhenjiang City

Mobile communication base stations,especially 4G-LTE base stations,have developed rapidly in recent years and become the most common source of electromagnetic radiation.The electromagnetic radiation of the base station and its impact on human health are becoming a sensitive topic of public concern.Therefore,the analysis of the current situation of electromagnetic radiation pollution in 4G-LTE mobile communication base stations and their protection measures are discussed.These work are of great significance and value.This article begins with the harm of electromagnetic radiation,this paper briefly introduces the status of the research of this field at home and abroad,the domestic relevant standards and the establishment of the regulatory system,the difference and the related standards and abroad are introduced.Then the 4G-LTE base station system composition,equipment parameters and antenna type statements,pollution source analysis was carried out on the base station,and theoretically predicting the typical around 4G-LTE base station electromagnetic radiation attenuation model and the distribution of the electromagnetic radiation protection distance.By collecting the Zhenjiang 4G-LTE base station location information,analysis and research the spatial distribution law of Zhenjiang 4G-LTE base station,through the study of the grid division of Zhenjiang city region scope and background of electromagnetic radiation environmental monitoring,compared with the spatial distribution of base station itself,Zhenjiang 4G-LTE base station is analyzed on the background of electromagnetic environment and the influence of electromagnetic environment capacity.Meanwhile,the radiation pollution of all types of base stations is monitored.The following conclusions are made:(1)through the GPS coordinates of base stations import ArcGIS mapping,the method of analysis of Zhenjiang 4G-LTE base station distribution,found on the spatial distribution are characterized by dense city center,the surrounding suburbs such as sparse distribution;Statistical analysis found that the average density of base station of Zhenjiang city is about 2 per square kilometers,which Jingkou district and Runzhou district is about 5 per square kilometers,compared with big cities,base station number per unit area is relatively low;Mainly in the city of Zhenjiang distribution dense commercial blocks,office buildings,schools,residential quarters,etc.,in addition to the central personnel dense zone,sparsely populated area base station distribution center set up basic along the road and the villages and towns.(2)the monitoring results show that the electromagnetic environment of Zhenjiang background monitoring value is far below the electromagnetic environment control limit requirements,with the protection of the eia estimated distance for the location of the construction of the base station,can satisfy the requirements of the electromagnetic environment control limit;It can be seen that there is more room for electromagnetic environment capacity in the city area.And,as of now,the city has not been seen to have a high level of background monitoring of electromagnetic radiation,which would require a restricted area.(3)by analogy monitoring of typical base stations,it is found that base stations in densely populated areas can effectively achieve low radiation,high coverage and high capacity because of low radiation power,low gain,high channel number of transmission equipment,and smaller and denser cellular networks to build base stations.While most of the communication coverage base stations in the sparsely populated suburbs and railway and highway are used for more powerful and high-gain transmission equipment,and most of them adopt the construction station of the tower,the actual monitoring results show that the radiation intensity can meet the requirements of protection distance and control limits.(4)according to the theoretical model calculation,determine the various types of base station antenna main lobe of Zhenjiang city direction of horizontal and vertical protection distance,the electromagnetic radiation protection zone,caused by the base station electromagnetic radiation will be less than one 5 of the standard limit value of single station control;That as long as the base station planning according to the theoretical calculation of the protection of the distance to carry out the construction of the base station around the sensitive can satisfy the electromagnetic environment control limit "(GB8702-2014)in public exposure control limit.