Patient Centered Real-Time Mobile Health Monitoring System

In this paper, we introduce a system architecture for a patient centered mobile health monitoring (PCMHM) system that deploys different sensors to determine patients’ activities, medical conditions, and the cause of an emergency event. This system combines and analyzes sensor data to produce the patients’ detailed health information in real-time. A central computational node with data analyzing capability is used for sensor data integration and analysis. In addition to medical sensors, surrounding environmental sensors are also utilized to enhance the interpretation of the data and to improve medical diagnosis. The PCMHM system has the ability to provide on-demand health information of patients via the Internet, track real-time daily activities and patients’ health condition. This system also includes the capability for assessing patients’ posture and fall detection.

Development and Field Evaluation of a Low-Cost Wireless Sensor Network System for Hydrological Monitoring of a Small Agricultural Watershed

Hydrological monitoring and real-time access to data are valuable for hydrological research and water resources management. In the recent decades, rapid developments in digital technology, micro-electromechanical systems, low power micro-sensing technologies and improved industrial manufacturing processes have resulted in retrieving real-time data through Wireless Sensor Networks (WSNs) systems. In this study, a remotely operated low-cost and robust WSN system was developed to monitor and collect real-time hydrologic data from a small agricultural watershed in harsh weather conditions and upland rolling topography of Southern Ontario, Canada. The WSN system was assembled using off-the-shelf hardware components, and an open source operating system was used to minimize the cost. The developed system was rigorously tested in the laboratory and the field and found to be accurate and reliable for monitoring climatic and hydrologic parameters. The soil moisture and runoff data for 7 springs, 19 summer, and 19 fall season rainfall events over the period of more than two years were successfully collected in a small experimental agricultural watershed situated near Elora, Ontario, Canada. The developed WSN system can be readily extended for the purpose of most hydrological monitoring applications, although it was explicitly tailored for a project focused on mapping the Variable Source Areas (VSAs) in a small agricultural watershed.

Construction Control and Monitoring of Large Span Continuous Steel Arch Bridge Based on 3G Network

This paper takes the right branch main channel Bridge of Huai River Bridge in Huainan as the engineering background, uses the finite element software Midas and the ANSYS to simulate and analyze the jacking construction of the bridge, and according to the theoretical calculation, the construction monitoring plan is developed, and the stress and deformation of the key section and part of the structure are monitored. Construction monitoring combined with 3 g network and data acquisition module, monitoring data for the real time measurement, the centralized acquisition and wireless transmission, accomplish on-line real-time monitoring of the bridge construction process, effective control of jacking construction and monitoring. The comparison between theoretical analysis and measured results shows that the simulation results are reasonable, and the construction monitoring scheme based on 3G network and data collection can be used as reference.

Real-time condition monitoring and fault diagnosis in switched reluctance motors with Kohonen neural network

The faults in switched reluctance motors(SRMs) were detected and diagnosed in real time with the Kohonen neural network. When a fault happens, both financial losses and undesired situations may occur. For these reasons, it is important to detect the incipient faults of SRMs and to diagnose which faults have occurred. In this study, a test rig was realized to determine the healthy and faulty conditions of SRMs. A data set for the Kohonen neural network was created with implemented measurements. A graphical user interface(GUI) was created in Matlab to test the performance of the Kohonen artificial neural network in real time. The data of the SRM was transferred to this software with a data acquisition card. The condition of the motor was monitored by marking the data measured in real time on the weight position graph of the Kohonen neural network. This test rig is capable of real-time monitoring of the condition of SRMs, which are used with intermittent or continuous operation, and is capable of detecting and diagnosing the faults that may occur in the motor. The Kohonen neural network used for detection and diagnosis of faults of the SRM in real time with Matlab GUI was embedded in an STM32 processor. A prototype with the STM32 processor was developed to detect and diagnose the faults of SRMs independent of computers.

Design and Research on the Chinese Medicine Health Management System Based on the Wireless Sensor Network

In view of the rapid growth of China's aging population and the rising demand for the medical services,it is more necessary to build a health management system of the traditional Chinese medicine based on the wireless sensor networks.This design combines the ZigBee technology,the city grid management and the virtual reality technology,to establish a real-time,accurate and fine health monitoring system,so as to comprehensively improve the efficiency,quality and level of people's health management.

Research on Network Platform of Information Management and Security

With the rapid development and wide application of network technology, information security issues are increasingly highlighted, received more and more attention. This article introduces the present situation of network information security, discusses the connotation of network information security, and analyzes the main threat to the security of the network information. And we separately detailed description of the data monitoring platform architecture from the data layer, network layer and presentation layer three levels, focuses on the functional structure of intelligent database platform, and puts forward to measures that ensure the safety of the platform and the internal data security. Through the design of the platform to improve the information security system has certain significance.

供热系统二次网单元水力平衡调节的远程监控实现

基于无线传输的方式设计了针对供热系统的二次网在小区单元间水力平衡的远程监控系统。该监控系统由可编程逻辑控制器(PLC)、电动调节阀和传感器等设备完成底层采集监控,通过PLC云网关和4G移动通信系统将二次网数据无线传输至云服务器,采用OPC通信和SQL Server数据库实现云网关服务器和监控系统间的数据传输和存储;在KingSCADA软件和Visual Studio Code软件中分别设计编写本地监控系统和网页远程监控系统,使单元间水力平衡的调节参数可视化。测试结果表明,该监控系统可实现供热系统二次网单元间水力平衡调节的实时远程监控功能,对提高水力平衡调节效率具有现实意义。

Real-time estimation of the structural utilization level of segmental tunnel lining

Over the last decades,an expansion of the underground network has been taking place to cope with the increasing amount of moving people and freight.As a consequence,it is of vital importance to guarantee the full functionality of the tunnel network by means of preventive maintenance and the monitoring of the tunnel lining state over time.A new method has been developed for the real-time prediction of the utilization level in tunnel segmental linings based on input monitoring data.The new concept is founded on a framework,which encompasses an offline and an online stage.In the former,the generation of feedforward neural networks is accomplished by employing synthetically produced data.Finite element simulations of the lining structure are conducted to analyze the structural response under multiple loading conditions.The scenarios are generated by assuming ranges of variation of the model input parameters to account for the uncertainty due to the not fully determined in situ conditions.Input and target quantities are identified to better assess the structural utilization of the lining.The latter phase consists in the application of the methodological framework on input monitored data,which allows for a real-time prediction of the physical quantities deployed for the estimation of the lining utilization.The approach is validated on a full-scale test of segmental lining,where the predicted quantities are compared with the actual measurements.Finally,it is investigated the influence of artificial noise added to the training data on the overall prediction performances and the benefits along with the limits of the concept are set out.

Real-time remote monitoring system for aquaculture water quality

A multi-parameters monitoring system based on wireless network was set up to achieve remote real-time monitoring of aquaculture water quality,in order to improve the quality of aquaculture products and solve such problems as being difficult in wiring and high costs in current monitoring system.In the system solar cells and lithium cells were used for power supply.The YCS-2000 dissolved oxygen sensor,pH electrode,Pt1000 temperature sensor and ammonia nitrogen sensor were used to monitor the parameters of aquaculture water quality;STM32F103 chip was used for data processing;Zigbee and GPRS modules were used for data transmission to the remote monitoring center,where the data were stored and displayed.The system was connected with aerator to realize automatic control of dissolved oxygen concentration.The test results showed high confidence level of data transmission with a packet loss rate of 0.43%.Therefore,the system could fulfill the real-time remote monitoring of aquaculture water quality and had great practical significance in reduction of labor intensity,improvement of quality of aquatic products and protection of water environment.

SCADA系统在能源供应系统中的应用研究

随着我国节能环保事业的发展和公用事业的进步,以及计算机技术、通信技术、互联网技术的成熟,数据采集与监视控制(SCADA)系统的应用获得了飞跃式发展。在能源供应领域,SCADA系统的应用从代替人工上门抄表、人工统计计算、人工现场巡查,发展到复杂的统计分析以及对能源供应系统进行全面的监控,在实施“双碳行动”中发挥着重要作用。首先,阐述了能源供应SCADA系统的基本功能。然后,列举了通过SCADA系统实现能源管网管理的增强功能和应用效果。最后,归纳总结了SCADA系统的发展趋势。SCADA系统在能源供应系统中的应用,对“双碳”目标的实现具有积极促进作用。

热力小室管道状态远程智慧监测系统的设计与实现

集中供暖系统中直埋敷设方式铺设的管道具有一定的局限性,如不便于检查,管网分布图局限于纸质,巡检人员无法准确地对管网及附属设备进行数字化管理,管网和附属设施的运行状况无法及时获取等。针对以上局限性,设计了一种集中供热管网远程智慧监测系统,能监测管网小室的运行状况(包括温度、水位、补偿器位移量、管网泄漏),及时发现管网小室内的异常情况;DN1400管道收缩膨胀系数会受到钢管温度的影响;预制直埋保温钢管相关参数会随着供热温度的变化而产生一定的变化。系统前端采集设备使用STM32作为主控芯片,配备标准型传感装置进行信息获取,由锂电池供电。系统采用A7680作为终端无线通信装置与系统分析平台进行通信。经过实际测试,系统可以准确获取小室环境温度、管壁温度、水位、补偿器位移量、泄漏相关参数。

热网监控系统在供热管理中的应用

阐述热网监控系统在供热管理领域的应用,探讨技术原理、功能模块、数据采集、处理方法,分析物联网技术的关系和互补性、智慧供热技术的应用。

大型热网监控系统报警模块划分与功能完善研究

随着热网规模的扩大及热力站数量的增多,故障人工识别工作量急速增加,精准报警对于热网的安全稳定运行越发重要。同时,信息技术与自控设备的优化可不断推进热网综合监控系统的发展和完善,其中大型热网监控系统的报警模块是智能热力站管理体系的重要组成部分。因此,结合热力站的运行管理和自控优化,文章将对大型热网监控系统报警模块的功能确定与优化进行研究,旨在为大型供热企业提供参考。

基于GPRS网络的远程供暖数据监控系统

为了实现采暖用户数据的远程实时在线监控、集中控制管理和按需消费热能,根据监控系统的实时性和经济性要求,提出一种基于通用分组无线业务(GPRS)网络技术的供暖监控系统通讯方案.监控方案由SIEMENS公司的GPRS网络通讯模块MC55、监控中心服务器、基于低功耗的MSP430FW 427混合信号微控制器的热能测量表终端等组成.测量终端与通讯模块之间采用RS485串行通讯,在监控结点与监控中心之间提供一个透明的数据传输通道,实现了远端结点与监控中心的实时数据交换.通过实验运行,系统数据传输速率约为60 kb it/s,具有高可靠性、高数据传输率等优点.

基于ZigBee无线传感器网络技术的患者体温检测系统设计

目的:设计一种能够实时监测病房患者体温和室内环境温度的系统。方法:利用ZigBee无线传感器网络技术组成无线网络,传输病房的各种参数。结果:成功地采集了人体温度、病房室内温度以及患者的呼叫信号。结论:基于ZigBee的患者体温采集系统可以集成多种传感器,使之具备应用于不同领域的不同功能,应用领域广,实现了网络无处不在的目标。

基于人工神经网络的锅炉受热面污染在线监测

基于人工神经网络,结合某300MW机组锅炉,通过引入清洁系数F表征锅炉受热面的积灰结渣状况,并针对不同吸热方式的受热面,如高、低温对流受热面,水冷壁等分别讨论了清洁系数的计算方法,建立了受热面污染在线监测模型以及在线数据预处理模型。对低温过热器和RN01吹灰器附近水冷壁区域的灰污曲线实际分析表明,吹灰后受热面清洁因子有较大增加,但吹灰停止后随着运行时间的延长,受热面污染的增加,清洁因子又逐渐恢复至正常值。受热面清洁系数的变化与锅炉实际吹灰情况相吻合,表明该污染监测模型在一定程度上能够正确反映受热面的实际污染状况。

基于农业网络信息分类的热词自动提取方法

热词提取对于监控和分析农业舆情具有重要意义,目前已有一定研究基础,但仍存在针对性差等问题,无法满足农业领域不同产业用户群的个性化需求,为此,提出一种基于农业网络信息分类的热词自动提取方法。首先采用多标记分类算法对文本语料进行分类,按分类类别构建语料库,然后采用基于信息熵的方法对每个类别分别提取热词候选词,最后采用基于时间变化的方法进行候选词热度计算,根据候选词热度排序结果得到热词。本文抽取农业网站上的15 354条文本进行实验,结果表明,热词提取准确率达到0.9以上,能够较高质量地提取农业热词,为不同农业用户群体发现和分析产业热点提供帮助。

基于熵值的网络论坛热点话题发现

针对网络论坛热点话题的识别、发现和舆情监测问题,提出一种基于热度熵值的热点话题发现方法。通过网络爬虫抓取网络论坛中的数据,在对数据进行预处理和分析热点话题属性特征的基础上,合理定义各属性的权重和话题的热度熵值,并以此对话题的热点信息进行分析、统计与评估,从而发现和追踪网络论坛中的热点话题。同时,对话题的热度进行细致划分和各种类型的定义,采用不同阈值策略计算不同类型的热度信息标注的准确率。实验结果表明,该方法合理、有效,相比于传统的话题语义分析方法具有较高的准确率,可作为互联网论坛舆情监测的依据。

基于多传感器的热网补偿器泄漏预警监测系统

针对国内补偿器泄漏监测成型设备的空白,提出了一种基于多传感器直接和间接协同工作的热网补偿器泄漏预警监测新方法,并设计了热网补偿器泄漏预警监测系统。该系统利用温度、流量、压力和电导率传感器,结合智能处理器和4G无线通信网络技术,通过远程数据监测平台,判断热网补偿器实时运行参数的突变量、梯度与差动值的变化,有效识别出热网补偿器渗漏或泄漏的具体位置。模拟实验和实际工程应用结果表明,热网补偿器泄漏监测装置能够替代传统人工巡检方式,及时发现热网补偿器微小渗漏,对推动热网运行优化与热网改造具有重要意义,为热网稳定运行和信息化管理提供数据依据。

多态气固相传热远程实验和网络视频监视

自主开发了专业实验远程测控和网络视频监视系统,通过远程实验装置的建设,使校内优质教学资源实现了共享,标志着实验室装备的现代化水平又上一个新台阶。