基于GSM及以太网的区域γ监测系统的研制
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摘要
随着我国核电事业的发展和核技术的广泛应用,放射性污染和核事故潜在危险将随之增加,核安全问题越来越受到人们的关注。为了有效地预防核事故的发生以及减小核事故对社会稳定和公共生命财产安全的危害,研究新型高效的核监测方法和核监测系统显得尤为重要。
本文所研究的辐射环境监测系统是针对区域环境监测而设计的一个多功能的自动监测系统,主要用于涉核企业(如铀矿企业和核电站等)以及地方环保部门对环境的监测,为有关部门及时掌握辐射情况提供可靠的数据来源。
本文在分析了国内外辐射环境监测现状的基础上,结合北京核仪器厂环境辐射监测产品的现状,设计实现了区域环境γ监测系统,该系统由三个子系统组成:现场数据采集系统、数据传输系统和监测中心数据处理系统。现场数据采集系统安装在测量现场,以基于C8051F020单片机为核心构成,主要功能是完成现场γ辐射剂量率和气象参数的实时采集,并将数据打包通过数据传输系统传输至监测中心。监测中心数据处理系统位于各企业或管理部门的监测站中心机房,完成和现场数据采集系统之间的实时数据传输,以及数据存储和数据分析处理功能。数据传输系统是基于GSM移动通信网络和以太网构成,确保现场数据采集系统和监测中心能够实时地、可靠地进行数据通信。
最后,对系统进行了测试。测试结果表明监测中心数据处理系统能对现场数据采集系统进行远程控制,现场数据采集系统能按照监测中心设定的参数采集数据,采集到的数据能够以有线或无线的方式通过数据传输系统传回监测中心,从而实现了远程监测的目标,提高了区域辐射监测的实时性。另外,实验数据表明数据传输系统能够准确无误地进行数据传输,证明了本设计的可行性。
With the development of nuclear power industry and the wide application of nuclear technologic, radioactive pollution and potential danger of nuclear accidents will increase, nuclear safety issues has been the subject of much concern. To effectively prevent the occurrence of nuclear accidents, as well as to reduce the nuclear accident on social stability and public life and property safety hazards, it is particularly important to research new and efficient methods for monitoring nuclear radiation and nuclear radiation monitoring systems.
The environment supervisor system for the nuclear radiation is a multi-functional automatic monitoring system for the regional environmental monitoring. It is mainly used for monitoring environment by nuclear-related enterprises (such as uranium mining companies and nuclear power plants, etc.) as well as local environmental protection departments. Also, it can provide reliable source of data for the relevant departments to get the radiation situation in time.
In this paper, the regionalγenvironmental monitoring system is designed and realized based on the analysis of status of the nuclear emergency monitoring systems, and the status of environmental radiation monitoring products of Beijing Nuclear Instrument Factory. The system is composed of three subsystems: on-site data acquisition systems, data transmission system and data processing system in the monitoring center. Field data acquisition system is installed in the measurement of the scene, based on C8051F020 MCU as the core composition; its main function is to complete the real-time acquisition of the on-siteγradiation dose rate and meteorological parameters. The data is packaged and transmitted to the center through the data transmission system. The data processing system in the monitoring center is located at the computer center of the enterprise or management departments. The task is to complete real-time communication with the on-site data acquisition systems, database storage, and data analysis and processing. Data transmission system is based on the GSM mobile communications networks and Ethernet composition, which ensure the on-site data acquisition system and the monitoring center have a real time and reliable data communication.
Finally, the system was tested. Test results show that the on-site data acquisition system could be monitored by the processing system in the monitoring center by remote way. On-site data acquisition system can gather data with the parameters which were set up by the monitoring center. Collected data can be transmitted to the monitoring center through the data transmission by means of wiring or wireless. All these results met the goal of remote monitoring. Also the real-time performance of the regional radiation monitoring was improved. In addition, the experimental data show that the data can be transmitted correctly by the transmission system。It has proved the feasibility of this design.
本文所研究的辐射环境监测系统是针对区域环境监测而设计的一个多功能的自动监测系统,主要用于涉核企业(如铀矿企业和核电站等)以及地方环保部门对环境的监测,为有关部门及时掌握辐射情况提供可靠的数据来源。
本文在分析了国内外辐射环境监测现状的基础上,结合北京核仪器厂环境辐射监测产品的现状,设计实现了区域环境γ监测系统,该系统由三个子系统组成:现场数据采集系统、数据传输系统和监测中心数据处理系统。现场数据采集系统安装在测量现场,以基于C8051F020单片机为核心构成,主要功能是完成现场γ辐射剂量率和气象参数的实时采集,并将数据打包通过数据传输系统传输至监测中心。监测中心数据处理系统位于各企业或管理部门的监测站中心机房,完成和现场数据采集系统之间的实时数据传输,以及数据存储和数据分析处理功能。数据传输系统是基于GSM移动通信网络和以太网构成,确保现场数据采集系统和监测中心能够实时地、可靠地进行数据通信。
最后,对系统进行了测试。测试结果表明监测中心数据处理系统能对现场数据采集系统进行远程控制,现场数据采集系统能按照监测中心设定的参数采集数据,采集到的数据能够以有线或无线的方式通过数据传输系统传回监测中心,从而实现了远程监测的目标,提高了区域辐射监测的实时性。另外,实验数据表明数据传输系统能够准确无误地进行数据传输,证明了本设计的可行性。
With the development of nuclear power industry and the wide application of nuclear technologic, radioactive pollution and potential danger of nuclear accidents will increase, nuclear safety issues has been the subject of much concern. To effectively prevent the occurrence of nuclear accidents, as well as to reduce the nuclear accident on social stability and public life and property safety hazards, it is particularly important to research new and efficient methods for monitoring nuclear radiation and nuclear radiation monitoring systems.
The environment supervisor system for the nuclear radiation is a multi-functional automatic monitoring system for the regional environmental monitoring. It is mainly used for monitoring environment by nuclear-related enterprises (such as uranium mining companies and nuclear power plants, etc.) as well as local environmental protection departments. Also, it can provide reliable source of data for the relevant departments to get the radiation situation in time.
In this paper, the regionalγenvironmental monitoring system is designed and realized based on the analysis of status of the nuclear emergency monitoring systems, and the status of environmental radiation monitoring products of Beijing Nuclear Instrument Factory. The system is composed of three subsystems: on-site data acquisition systems, data transmission system and data processing system in the monitoring center. Field data acquisition system is installed in the measurement of the scene, based on C8051F020 MCU as the core composition; its main function is to complete the real-time acquisition of the on-siteγradiation dose rate and meteorological parameters. The data is packaged and transmitted to the center through the data transmission system. The data processing system in the monitoring center is located at the computer center of the enterprise or management departments. The task is to complete real-time communication with the on-site data acquisition systems, database storage, and data analysis and processing. Data transmission system is based on the GSM mobile communications networks and Ethernet composition, which ensure the on-site data acquisition system and the monitoring center have a real time and reliable data communication.
Finally, the system was tested. Test results show that the on-site data acquisition system could be monitored by the processing system in the monitoring center by remote way. On-site data acquisition system can gather data with the parameters which were set up by the monitoring center. Collected data can be transmitted to the monitoring center through the data transmission by means of wiring or wireless. All these results met the goal of remote monitoring. Also the real-time performance of the regional radiation monitoring was improved. In addition, the experimental data show that the data can be transmitted correctly by the transmission system。It has proved the feasibility of this design.
引文
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[4]环境陆地γ辐射水平调查技术咨询小组.五省(市)环境陆地γ辐射水平调查中所用仪器的比对结果[J].辐射防护, 1986. 6(4) : 278
[5] Suntharalingam N,Cameron J R. A Comparison of TLD and Film for Personnel Dosimetry. Health Phys. , 1966.12 : 1595
[6] Gesell T F, Burke G O P, Becker K. An International Intercomparison of Environmental Dosimeters. Health Phys. , 1976. 30 : 125
[7]胡德成,曹新义. 6LiF(Mg ,Ti)和7LiF(Mg ,Ti)热释光元件性能的测量[J].核电子学与探测技术, 1982. 2(1) : 28
[8]谢新祥,李藩廷,王清芳.携带式环境X、γ照射率仪探头的研制[J].核电子学与探测技术, 1984. 4 (2) :65
[9] Minato S , Kawana M. Evaluation of Exposure Due to Terrestrial Gamma2radiation by Response Matrix Method. J . Nucl. Sci. Technal. , 1970. 7(8) : 401
[10] Beck H L , et al. In Situ Ge(Li) and NaI(Tl) Gamma ray Spectrometry. HASL-258, 1972
[11] Okano M, et al. Measurement of Environmental Radiations with a Scintillation Spectrometer Equipped with a Spherical NaI ( Tl ) Scintillator. CONF-780422, 1980.2 : 896
[12] Miller KM. A Spectral Stripping Method for a Ge Spectrometer Used for Indoor Gamma Exposure Rate Measurements. EML2419, 1984
[13] Moriuchi S. A New Method of Dose Evaluation by Spectrum-dose Conversion Operator and Determination of the Operator. JAERI21209 , 1971
[14]岳清宇,王文海,金花. G-M计数管用于环境γ辐射监测[J].辐射防护,1999,3
[15]任晓娜,胡遵素.用NaI(T1)探测器测量γ辐射场剂量特性的加权积分法研究[J].辐射防护,2003,3
[16] H.Koeman.“Filtering of signals obtained from semiconductor radiation detectors”,Philips Research Lab.Eindhoven,The Netherlands(1973).
[17] H.Koeman. PRINCIPLE OF OPERATION AND PROPERTIES OF A TRANSVERSAL DIGITAL FILTER.1223(1):169-180,1974.
[18] H.Koeman. PRACTICAL PERFORMANCE OF THE TRANSVERSAL DIGITAL FILTER IN CONJUNCTION WITH X-RAY DETECTOR AND PREAMPLIFIER.123(1):181-187,1974.
[19] T.V.ALALOCK Minimum-Noise Pulse Shaping with New Double Delay-Line Filters in Nuclear Pulse Amplifiers. THE REVIEW OF SCIENTIFIC INSTRUMENTS XOL.36.NO.10 OCT.1965:1448-1456
[20] M.G.STRAUSS,T.N.LARSEN,PULSE SHAPE DISTRIBUTIONS FROM GAMMA-RAYS IN LITHIUM DRIFTED GERMANIUM DETECTORS.NUCLEAR INSTRUMENTS AND METNODS 46(1967)45-54.
[21] M.O.DEIGHTON, A TIME-DOMAIN NETHOD FOR CALCULATING NOISE OF ACTIVE INTEGRATORS USED IN PULSE AMPLITUDE SPECTROMETRY, NUCLEAR INSTRUMENTS AND MEHODS 58(1968)201-212.
[22] F.S.GOULEING,PULSE-SHAPING IN LOW-NOISE NUCLEAR AMPLIFIETS:A PHYSICAL APPROACH TO NOISE ANALYSIS,NUCLEAR INSTRUMENTS AND METHODS 100(1972)493-504.
[23] V.Radeka,SIGNAL,NOISE AND RESOLUTION IN POSITION-SENSITIVE DETECTORS,
[24] C.H.Nowlin,PULSE SHAPING FOR NULCEAR PULSE AMPLIFIERS,
[25] M.Konrad,DETECTOR PULSE SHAPING FOR HIGH RESOLUTION SPECTORSCOPY,
[26] F.S.Goulding and D.A.Landis,SIGNAL PROCESSING FORSEMICONDUCTOR DETECTORS,IEEE Transactions on Nuclear Science,BOLNS-29,NO3,June 1982.
[27] R.E.Chrien and R.J.Sutter. NOISE AND PILEUP SUPPRESSION BY DIGTAL SIGNAL PROCESSING. Nuclear Instruments & Methods in Physics research, Section A: Accelerators, Spectrometers, Detecto A249(2-3):421-425,1986.
[28] D.H.Willkinson, Pulse pile-up I: short pulses, Nuclear Instruments &Methods in Physics Research, A297(1990)230-243.
[29] D.H.Wilkinson, Pulse pile-up II: short pulses, Nuclear Instuments & Methods in Physics Research, A297(1990)244-249.
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