Real-Time Monitoring of Meteorological Data at In-Situ GCW Remediation Sites

To optimize the self-organization network, self-adaptation, real-time monitoring, remote management capability, and equipment reuse level of the meteorological station supporting the portable groundwater circulation wells, and to provide real-time and effective technical services and environmental data support for groundwater remediation, a real-time monitoring system design of the meteorological station supporting the portable groundwater circulation wells based on the existing equipment is proposed. A variety of environmental element information is collected and transmitted to the embedded web server by the intelligent weather transmitter, and then processed by the algorithm and stored internally, displayed locally, and published on the web. The system monitoring algorithm and user interface are designed in the CNWSCADA development environment to realize real-time processing and analysis of environmental data and monitoring, control, management, and maintenance of the system status. The PLC-controlled photovoltaic power generating panels and lithium battery packs are in line with the concept of energy saving and emission reduction, and at the same time, as an emergency power supply to guarantee the safety of equipment and data when the utility power fails to meet the requirements. The experiment proves that the system has the characteristics of remote control, real-time interaction, simple station deployment, reliable operation, convenient maintenance, and green environment protection, which is conducive to improving the comprehensive utilization efficiency of various types of environmental information and providing reliable data support, theoretical basis and guidance suggestions for the research of groundwater remediation technology and its disciplines, and the research and development of the movable groundwater cycling well monitoring system.

Environmental monitoring and fuzzy synthetic evaluation of municipal solid waste transfer stations in Beijing in 2001-2006

Transfer station(TS)is an integral part of present-day municipal solid waste(MSW)management systems.To provide information for the incorporation of waste facilities within the current integrated waste management system,the authors measured the existing environmental quality at five MSW TSs.Discharged wastewater,air,and noise were monitored and assayed at the five TSs in Beijing in 2001-2006 during rainy seasons(RSs)and dry seasons(DSs).Except Ammonia(NH_3)and hydrogen sulfide(H_2S),the analytical results of...

Air Pollution Concentration Approach to Potential Area Selection of the Air Quality Monitoring Station in Nakhon Ratchasima Municipality, Thailand

The purpose of the study is to generate traffic air information system） to determine a proper zone of AQMS （air analyzed were carbon monoxide （CO）, and nitrogen oxides （NOx） pollution map using mathematical model and GIS （geographic quality monitoring station） in municipality area. The pollutants which can be harmful to people living in the area. The three steps of mapping process were performed under the GIS environment using the existing vehicle emission rates and pollutant dispersion model. First, traffic volume, road network, and the emission rates of road segments varying with types of vehicle were collected from existing data. Second, the pollutant concentrations were calculated by use of CALINE4, a tool with Gaussian dispersion model. The model parameters include emission rate, wind directions and speeds, ambient temperature and observed pollutant concentration, and atmospheric stability during all seasons from the January 1, 2010 to May 31,2011 with regardless the rainy season. This resulted in concentrations at many receptor points along links of the road network. Third, distributions of pollution concentrations were generated by means of the spatial interpolation of those from receptors. The results of pollution raster-based maps are used for determining frequency of violence and combined pollution map. The resulting frequency of violence and intensity concentration will be further integrated to determine a potential area of AQMS. Finally, achieving pollution potential area of AQMS can be located as helpful basic data for efficient traffic and transportation planning.

Monitoring Bridge Deformation Using Auto-Correlation Adjustment Technique for Total Station Observations

Bridges are omnipresent in every society and they affect its human, social, ecological, economical and cultural aspects. This is why a durable and safe usage of bridges is an imperative goal of structural management. Measurement and monitoring have an essential role in structural management. The benefits of the information obtained by monitoring are apparent in several domains. In deformation analysis, the functional relationship between the acting forces and the resulting deformations should be established. If time depending observations are given, a regression could be used as a functional model. In case of stochastic model uncorrelated observations with identical variance are assumed. Due to the high sampling rate, a small time difference arises between two observations. Thus the assumed stochastic model is not suitable. The calculation has to be effected by means of auto-correlated observations. This paper investigates an integrated monitoring system for the estimation of the deformation (i.e., static, quasi-static) behavior of bridges from total station observations and studies the effect of autocorrelation technique on the accuracy of the estimated parameters and variances. The results have shown that autocorrelation technique is reduced the standard deviation of X&Y-direction about 6.7% to 29.4% and 6.5% to 15.5% of the original value, respectively, but the situation was differ in Z direction;the standard deviation in vertical component Z was increased.

Antenna and Base-Station Diversity for WSN Livestock Monitoring

Antenna and base-station diversity have been applied to a wireless sensor network for the monitoring of live-stock. A field trial has been described and the advantage to be gained in a practical environment has been assessed.

Safety monitoring and stability analysis of left abutment slope of Jinping Ⅰ hydropower station

Safety monitoring and stability analysis of high slopes are important for high dam construction in high mountainous regions or precipitous gorges. In this paper, deformation characteristics of toppling block at upper abutment, deforming tensile rip wedge in the middle part and deep fractures are comprehensively analyzed based on the geological conditions, construction methods and monitoring results of left abutment slope in Jinping Ⅰ hydropower station. Safety analyses of surface and shallow-buried rock masses and the corresponding anchorage system are presented. The monitoring results indicate that the global stability of the large wedge block in the left abutment is effectively under control, and the abutment slope is stable in a global sense. After the completion of excavation, the deformations of toppling block at the top of the slope and deep fracture zone continue at a very low rate, which can be explained as 'rock mass creep'. Further monitoring and analysis are needed.

基于声纹监测技术的大型泵站机组振动特性研究

声音和振动是反映旋转机械设备运行状态信息的直接载体,根据声纹监测的原理,通过对数据进行采集、预处理、提取特征值,采用卷积神经网络深度学习识别模型,建立大型泵站机组运行状态声纹样本库和模型库,构建泵站机组振动状态的声纹监测系统,实现大型泵站机组运行状态的实时监测。

Study on Safety and Stability Evaluation of Waste Disposal Field of a Hydropower Station Based on <i>In Situ</i>Monitoring

Reasonable site selection, blocking to meet design standards, interception and drainage and other protective measures are the basic conditions for not causing disaster in slag disposal site. A hydropower station is located in mountainous area, the amount of slag abandoned is large, the grade of slag disposal field is high, and the site selection is difficult. On the basis of in Situ deformation monitoring, the slope stability of slag disposal site is calculated by Swedish arc method through the analysis of the scale, grade, site selection, surrounding environment, cut and discharge, blocking and protection design standards of slag disposal site. Under normal and abnormal operating conditions, the slope stability of slag disposal site meets the requirements of the code, and the results of in Situ deformation monitoring verify the calculation results of slope stability of slag disposal site by Swedish circular arc method.

推动长江经济带高质量发展的水文实践与思考

长江流域经济社会高质量发展离不开水文的强有力支撑。近年来,长江流域水文站网布局与功能日趋完善,水文监测自动化水平不断提高,水文预报能力进一步提升,水文信息处理智慧化水平逐步提高,对水旱灾害防御、水资源配置调度、水生态保护修复等支撑作用更加凸显,水文现代化发展成效较为显著。当前,推动长江经济带高质量发展对水文提出新的更高要求,通过分析研判当前面临的新形势新要求,提出了下一步工作重点。

基于LoRa通信的无线发射台信号智能监测技术研究

为实现大面积无线发射台信号覆盖监测,有效地抵御监测过程中多径干扰和频率选择性衰减等干扰因素的影响,研究基于LoRa通信的无线发射台信号智能监测技术。在无线发射台发出信号后,转换成数字信号进行对比,识别出有效发射台信号后,通过级联型LoRa组网方式以及LoRa通信技术,将数据发送到服务器中存储,实现无线发射台信号的传输。利用循环位移因子对基带产生的Chirp信号完成调频扩频调制,扩展信号频谱,增强信号抗干扰能力以及传输可靠性,增强信号监测的效果。实验结果表明:该方法能够在距离LoRa终端设备2.5 km处依旧接收到发射台信号,丢包率为12%,能够准确地监测到无线发射台是否存在发射信号。

数字化技术在5G基站电磁辐射监测中的应用

介绍了一个基站电磁辐射数字化检测平台,该平台利用5G+互联网技术,实现了基站电磁辐射原始监测数据、频谱图的实时上传,以及基站电磁辐射监测的全要素、全流程管理,并结合CNAS实验室认可要求介绍了数字化检测系统投入应用时的注意事项。

质量监测指标在血站实验室ABO血型检测中的应用

目的分析ABO血型检测相关质量监测指标情况及其变化趋势,探讨质量监测指标在血站实验室ABO血型检测过程中的作用。方法以该中心2012—2021年2733642例献血者标本为研究对象,分析2012—2021年ABO血型检测过程中相关质量监测指标,包括特殊血型检出率、标本血型与血液制剂血型不一致率、采血部门血型检测错误率、送检血型与确认结果符合率等,对数据进行整理和分析。结果2012—2021年2733642例献血者特殊血型检出率中位数为0.030%,各年度比较,差异有统计学意义(0.019%~0.051%;χ^(2)=75.612,P<0.01)。标本血型与血液制剂血型不一致率为0.04■,各年度比较,差异有统计学意义(0.00■~0.21■;χ^(2)=15.787,P<0.01),呈递减趋势(χ^(2)=11.178,P<0.01)。采血部门血型检测错误率为0.55?,各年度比较,差异有统计学意义(0.24■~0.77■;χ^(2)=18.247,P<0.05),呈递减趋势(χ^(2)=8.143,P<0.01)。送检血型与确认结果符合率为78.24%,各年度比较,差异无统计学意义(70.94%~84.71%,χ^(2)=11.993,P>0.05),未见明显趋势变化(χ^(2)=0.879,P>0.05)。结论血站实验室应使用质量监测指标对ABO血型检测进行持续监控和过程评价,确保实验室检测能力的有效性、稳定性,为血型检测过程管理持续改进提供数据依据。

国家水土保持监测站点优化布局研究

水土保持监测是水土保持的重要基础性工作,监测站点是水土保持监测网络的重要组成部分。2002—2010年国家实施了全国水土保持监测网络和信息系统建设一、二期工程,并引导地方站点加密及与其他行业站点共享,初步形成了覆盖全国的水土保持监测网络。在深入分析全国水土保持监测现状问题和面临形势基础上,根据新时期国家生态文明建设和水土保持高质量发展的新要求,开展了国家水土保持监测站点优化布局需求分析、建设目标和任务、运行管理模式等方面研究,为解决现有监测站点布局不平衡、观测数据分析应用不足、对水土保持高质量发展支撑力度不够等问题提供了有效路径,也为全国开展水土保持监测站点优化布局等提供参考借鉴。

月球空间天气探测与研究进展

稳定的天体地质构造、与地球合适的距离、无稠密大气和全球磁场,使得月球成为日地月空间天气监测和研究的天然优良实验室。回顾了国内外月球空间天气探测和研究进展,梳理了月球空间天气关键科学问题及预报应用问题,提出了建立月球空间天气监测站的构想,明确了监测站具体科学目标,并介绍了监测站三大系统构成及相互关系,包括监测系统、科学研究系统以及建模与预报系统。建立月球空间天气监测站对研究太阳爆发活动、日地月耦合关系以及月球局地环境的变化具有重要的科学意义,也有利于促进月球空间天气建模和预报技术的发展,提升未来月球科研探索任务空间环境保障能力。

基于云平台的热网智慧换热站监控系统

随着日益增长的集中供热面积及智慧城市的建设,针对换热站目前存在自动化程度不高、远程采集信息困难、热网调节波动大等问题,开发了基于云平台的换热站远程监控系统。通过智能DTU网关与PLC连接,将数据采集到服务器中,通过服务器之间数据传递,使用VS开发客户端及WEB发布。针对换热站二次网温度波动大问题,设计了模糊自适应PID控制器,通过仿真满足二次网水温控制要求。通过模拟测试,系统功能完善满足构建智慧热网的需要。

铁路客站屋盖结构传感器优化布置关键技术及软件开发研究

合理的传感器布设是站房结构健康监测的前提,也是响应信息精准采集的关键。针对既有传感器应变测点位置模糊、布设方法缺失等问题,以规范条文及模型分析结果为依据,基于Python语言编译并开发了铁路客站屋盖传感器优化布置程序。该程序旨在通过自定义限值筛选及智能优化算法,辅助工程人员更加高效地实现动、静态传感器的筛选及优化布置,避免传感器布置冗余造成的信号干扰及成本浪费,最大程度提高结构响应的覆盖率和灵敏度。研究结果表明:(1)该程序可直观显示需要应变监测的杆件,并清晰展示测点沿杆件方向的位置及其在构件截面的具体坐标,解决传统布设方式应变监测点模糊的问题;(2)基于粒子群优化算法及最小模态置信准则原理的加速度传感器布设方式,提高了测点布置的合理性和科学性,弥补了以经验为主导的传感器布置方法的不足;(3)该程序操作界面简单,在满足工程人员对监测点布设方案制定需求的基础上,提高了传感器筛选优化的效率。

基于物联网技术的基站移动式油机无线监控系统设计与实践

文章依托杭州大光明通信系统股份有限公司在研项目,聚焦于传统基站移动式油机管理模式存在的局限性与不足,设计并实现了一种基于物联网的基站移动式油机无线监控系统。该系统通过无线通信技术,能够实时追踪油机的位置、油耗、状态等数据,为提升油机维护保养监管力度、基站发电调度管理力度、基站发电保障力度、发电费用管控精细化程度提供有力的数据支持。通过实际应用,文章验证了该系统的有效性和实用性。

江苏地震监测中心站人才培养机制探索

为全面深入推进地震监测中心站改革工作,江苏省地震局坚持以习近平新时代中国特色社会主义思想为指导,落实中国地震局党组全面深化改革的任务部署,以服务保障防震减灾现代化建设为目标,通过体制机制创新,加快建立适应新时期发展需求的中心站管理体系,理顺管理关系,优化业务布局,提高运行效能,提升中心站的综合实力与创新活力。要筑牢地震台站基层阵地,确保地震事业科学发展,强化人才队伍保障是有力支撑防震减灾事业现代化建设的重要途径。本文通过对江苏省地震监测中心站人才情况、人才培养政策与成效等进行讨论和发掘,分析地震监测中心站人才培养存在的问题,并针对这些问题进行原因分析,探索一种适合地震监测中心站人才培养的模式。

基于定位观测站图像实现草原植被覆盖度自动化提取的方法比较

植被覆盖度是草原生态监测和研究中极其重要的指标。本研究采用无人值守定位观测站获取样方图像数据集,比较选取多种提取算法,旨在解决定位连续观测中不同样方的大量图像数据集如何自动化提取植被覆盖度指标的难题。本文使用绿度指数法、随机森林(RF)、支持向量机(SVM)和反向传播(BP)神经网络不同图像分割方法提取不同草地类型的覆盖度,并讨论绿度指数之类的阈值分割方法与机器学习方法的优劣、3种机器学习算法产生不同分类效果的原因以及覆盖度数值产生误差的主要原因。结果表明,机器学习算法可灵活解决定位观测站样方图像集的快速自动化提取植被覆盖度问题。绿度指数阈值分割方法应用于植被覆盖度的分割效果较差;RF算法在高寒草原的分割精度较高,SVM在温性草原和温性荒漠草原中分割效果较高,BP神经网络在高寒草甸的覆盖度提取中更有优势。本研究可为新时代草原生态监测的信息化和智能化监测设备研发提供重要的参考依据。

地震监测中心站科技档案归档管理初探——以山西省地震监测中心站为例

根据地震监测中心站地震科技档案的重要性,分析了地震监测中心站科技档案的特点,针对地震监测中心站科技档案管理的现状,阐明了地震监测中心站科技档案管理已取得的成果,并根据新时期防震减灾工作的新要求,提出了今后地震监测中心站在加强顶层建设、加强档案规范管理和开展档案信息化建设的新途径。