阅读说明：本技术 一种用于区域环境电磁辐射监测的方法 (Method for monitoring electromagnetic radiation of regional environment ) 是由 江海洋 杨毅 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种用于区域环境电磁辐射监测的方法,该方法是利用电磁监测车在监测区内进行射频电磁环境监测,通过监测获得射频电磁环境分布图,同时对监测结果进行统计分析,得出各市城区内射频电磁环境污染现状结果。该方法的监测结果与《辐射环境保护管理导则—电磁辐射监测仪器和方法》(HJ/T10.2—1996)及《移动通信基站电磁辐射环境监测方法》规定的监测方法相近,因此本申请的测试方法的检测结果比较稳定,且该方法更加简单,容易推广应用。(The invention discloses a method for monitoring electromagnetic radiation of regional environment, which utilizes an electromagnetic monitoring vehicle to monitor radio frequency electromagnetic environment in a monitoring region, obtains a radio frequency electromagnetic environment distribution map through monitoring, and simultaneously carries out statistical analysis on monitoring results to obtain the current radio frequency electromagnetic environment pollution state results in each urban area. The monitoring result of the method is similar to the monitoring method specified in radiation environment protection management guide-electromagnetic radiation monitoring instrument and method (HJ/T10.2-1996) and mobile communication base station electromagnetic radiation environment monitoring method, so that the detection result of the test method is stable, and the method is simpler and is easy to popularize and apply.)

1. A method for regional environmental electromagnetic radiation monitoring, characterized by: the method comprises the steps of utilizing an electromagnetic monitoring vehicle to monitor the radio frequency electromagnetic environment in a monitoring area, obtaining a radio frequency electromagnetic environment distribution graph through monitoring, and meanwhile, carrying out statistical analysis on monitoring results to obtain the current radio frequency electromagnetic environment pollution state results in each urban area.

2. The method of claim 1, wherein: and carrying out gridding monitoring on the monitoring area, wherein an electromagnetic monitoring vehicle carries out patrol monitoring on a pre-designed route, the grid interval is less than 1km multiplied by 1km, the monitoring time is from 9 am to 5 pm, and the monitoring is carried out under the condition of clear weather or no rain.

3. The method of claim 2, wherein: after the measurement is finished on the day, a comprehensive field intensity distribution graph of a measured area on the day is calculated according to the monitoring result and the driving track, abnormal data in the comprehensive field intensity distribution graph are analyzed, an electromagnetic pollution source is analyzed in the area where the abnormal data is located, and the retest is carried out on the area with a part of measured values of the comprehensive field intensity by adopting a support method.

4. The method of claim 2, wherein: the vehicle speed is controlled below 30km/h in order to obtain the most accurate average data within a certain distance.

5. The method of claim 2, wherein: during testing, the monitoring antenna is positioned on the roof of the monitoring vehicle, and the distance between the antenna and the roof is 0.3-0.6 m.

6. The method of claim 2, wherein: the electromagnetic monitoring vehicle is characterized in that an absorbing material covering layer is arranged on the vehicle roof.

Technical Field

The invention relates to the field of radiation, in particular to a method for monitoring electromagnetic radiation of a regional environment.

Background

Since the 20 th century and the 80 th era, the distribution of equipment and facilities for generating electromagnetic radiation in China is wider and larger, and the power is larger and larger, meanwhile, the urban population and the building density are increased continuously, and the electromagnetic radiation becomes a new urban pollution source. With the rapid increase of household appliances of rural residents and the development of electric power, communication and transportation industries, electromagnetic radiation pollution events are rapidly diffused from large cities to medium and small cities and rural areas, especially the carcinogenic risk of human bodies caused by radio frequency (RF, 100 kHz-300 GHz) electromagnetic radiation, and the wide attention of domestic and foreign governments and public is aroused. China promulgates implementation of electromagnetic radiation monitoring instruments and methods for radiation environment protection management guide rules in 1996 (HJ/T10.2-1996), 3/28/2000, and the State Committee of trade issues No. 189 file to make clear that electromagnetic radiation needs to be protected, 8/6/2001, and the China Consumer Association issues No. 9 consumption warning: electromagnetic radiation is required in daily life. The influence of electromagnetic radiation on human health has attracted government and public attention, and extensive research has been carried out at home and abroad. Background investigation of urban electromagnetic environment is carried out in China in the last 20 years, and the investigation result shows that the urban electromagnetic environment is in a lower level, and electromagnetic radiation mainly comes from radio frequency equipment such as mobile communication base stations, radio and television.

Various measurement methods such as a grid center monitoring method, a fixed point continuous monitoring method, and a personal exposure dosimeter (PEMs) have been developed at home and abroad.

(1) A grid center monitoring method: when measuring the electromagnetic radiation of the whole city, dividing the whole area into 1 multiplied by 1km according to a city mapping map²Or 2 x 2km²And (5) taking the center of the small square grid as a measuring position for arranging points in a general environment measurement. The measurement method is only used for monitoring in a grid center, the position and the quantity of data acquisition are limited, and the actual situation of the urban electromagnetic environment cannot be better reflected.

(2) Fixed point continuous monitoring method: one or more representative fixed points of the area to be measured are selected to carry out continuous monitoring for more than 24h, the change of the fixed points of the electromagnetic environment along with time is usually reflected, and the detailed condition of the electromagnetic environment of the whole urban area cannot be obtained.

(3) Personal exposure dosimetry method: similar to personal dosimeters that measure nuclear radiation, a large amount of test data can be acquired by taking personnel at typical locations within an area to participate in the wearing of the instrument for a period of time. However, the precision of the test instrument adopted by the method is low, the method is not perfect, and the method is not popularized and used in China.

The existing method generally has the defects of large grids, low precision, difficult typical position selection, small data volume, large manpower demand and the like, is not suitable for large-scale test development, and has insufficient representativeness.

Disclosure of Invention

The present invention provides a method for monitoring electromagnetic radiation in a regional environment, aiming at the existing technical problems.

The purpose of the invention can be realized by the following technical scheme:

a method for monitoring electromagnetic radiation of regional environment comprises monitoring radio frequency electromagnetic environment in a monitoring region by using an electromagnetic monitoring vehicle, obtaining a radio frequency electromagnetic environment distribution map through monitoring, and performing statistical analysis on monitoring results to obtain the current state results of radio frequency electromagnetic environment pollution in each urban area.

The method comprises the following steps: and carrying out gridding monitoring on the monitoring area, wherein an electromagnetic monitoring vehicle carries out patrol monitoring on a pre-designed route, the grid interval is less than 1km multiplied by 1km, the monitoring time is from 9 am to 5 pm, and the monitoring is carried out under the condition of clear weather or no rain.

The method comprises the following steps: after the measurement is finished on the day, a comprehensive field intensity distribution graph of a measured area on the day is calculated according to the monitoring result and the driving track, abnormal data in the comprehensive field intensity distribution graph are analyzed, an electromagnetic pollution source is analyzed in the area where the abnormal data is located, and the retest is carried out on the area with a part of measured values of the comprehensive field intensity by adopting a support method.

The method comprises the following steps: the vehicle speed is controlled below 30km/h in order to obtain the most accurate average data within a certain distance.

The method comprises the following steps: during testing, the monitoring antenna is positioned on the roof of the monitoring vehicle, and the distance between the antenna and the roof is 0.3-0.6 m.

The method comprises the following steps: the electromagnetic monitoring vehicle is characterized in that an absorbing material covering layer is arranged on the vehicle roof.

The technical scheme of the invention is as follows: the monitoring module displays the monitoring conditions of the ESPI test receiver and the EMR300 electromagnetic radiation analyzer in real time, so that the measurement conditions can be known at any time and problems can be found in time. The module mainly comprises frequency measurement, real-time monitoring of comprehensive measurement and setting of automatic task measurement, a user can set starting and ending measurement time and measurement types according to needs, and the measurement instrument automatically starts and stops measurement according to parameters set by the user.

The invention has the beneficial effects that:

the invention provides a method for monitoring electromagnetic radiation in regional environment, and the monitoring result of the method is similar to the monitoring method specified in radiation environment protection management guide-electromagnetic radiation monitoring instrument and method (HJ/T10.2-1996) and mobile communication base station electromagnetic radiation environment monitoring method, so that the detection result of the test method is stable, and the method is simpler and is easy to popularize and apply.

Detailed Description

The invention is further illustrated by the following examples, without limiting the scope of the invention:

all monitoring instruments entrust the metrological verification department identified by the state to carry out metrological verification, and the detection is in the valid period. The measurement instrument calibration conditions are shown in the following table.

Testing and expiration date of measuring instrument

In order to ensure the truth and reliability of data of the electromagnetic monitoring vehicle in the monitoring process, the working state of instrument equipment is paid attention to in real time in the inspection process, and the normal operation of a monitoring system of the electromagnetic monitoring vehicle is adjusted and ensured in time.

In order to ensure the quality of data acquired by the electromagnetic monitoring vehicle, the electromagnetic monitoring vehicle and the ROMS100PRO monitoring instrument are continuously compared and measured, and the reliability of the electromagnetic monitoring vehicle is checked.

Example 1

A method for monitoring electromagnetic radiation of regional environment comprises monitoring radio frequency electromagnetic environment in a monitoring region by using an electromagnetic monitoring vehicle, obtaining a radio frequency electromagnetic environment distribution map through monitoring, and performing statistical analysis on monitoring results to obtain the current state results of radio frequency electromagnetic environment pollution in each urban area. And carrying out gridding monitoring on the monitoring area, wherein an electromagnetic monitoring vehicle carries out patrol monitoring on a pre-designed route, the grid interval is less than 1km multiplied by 1km, the monitoring time is from 9 am to 5 pm, and the monitoring is carried out under the condition of clear weather or no rain. After the measurement is finished on the day, a comprehensive field intensity distribution graph of a measured area on the day is calculated according to the monitoring result and the driving track, abnormal data in the comprehensive field intensity distribution graph are analyzed, an electromagnetic pollution source is analyzed in the area where the abnormal data is located, and the retest is carried out on the area with a part of measured values of the comprehensive field intensity by adopting a support method. The vehicle speed is controlled below 30km/h in order to obtain the most accurate average data within a certain distance. During testing, the monitoring antenna is positioned on the roof of the monitoring vehicle, and the distance between the antenna and the roof is 0.3-0.6 m. The electromagnetic monitoring vehicle is characterized in that an absorbing material covering layer is arranged on the vehicle roof.

According to the running track of the electromagnetic monitoring vehicle, the electromagnetic environment of the city district of Nantong city is monitored, and the monitoring range basically covers the city district, mainly a harbor gate district and a Chongchuan district. The monitoring route is basically monitored along each main road of a city, a driving route is added for an area with larger transverse or longitudinal span of the main road, and the area enters a cell or a branch for monitoring, so that the monitoring data can reflect the electromagnetic radiation level of the measured area to the maximum extent.

The result shows that the comprehensive electric field intensity of the south traffic city is not high as a whole, but the regional distribution has certain difference, and the south-north area has the characteristics of high north and low south, high center and low periphery. This is mainly related to the major urban area RF radiation pollution sources and base station construction.

The total comprehensive electric field intensity of the southeast city is 0.89 +/-0.44V/m (mean value +/-standard deviation, the same below), and is obviously lower than the exposure control limit (12V/m corresponding to 30 MHz-3000 MHz) of the national electromagnetic environment control limit (GB 8702-2014). The comprehensive field intensity values are mainly distributed in the range of 0.5-1.0V/m accounting for 44.5%, the range of 0.2-0.5V/m accounting for 25.2%, the range of 1.0-1.5V/m accounting for 19.2%, the range of 1.5-2.0V/m accounting for 5.8%, the range of 2.5-3.0V/m accounting for 2.2%, the range of more than 3.0V/m or less than 0.2V/m accounting for 0.6-1.8%.