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Settlement monitoring system of pile-group foundation
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作者 陈志坚 张宁宁 张雄文 《Journal of Central South University》 SCIE EI CAS 2011年第6期2122-2130,共9页
In order to realize information construction on settlement of pile-group foundation of Sutong Bridge, the monitoring instruments of high-precision micro-pressure sensor and hydrostatic leveling and settlement profiler... In order to realize information construction on settlement of pile-group foundation of Sutong Bridge, the monitoring instruments of high-precision micro-pressure sensor and hydrostatic leveling and settlement profiler were integrated synthetically. A set of practical multi-scale monitoring system on settlement of super-large pile-group foundation in deep water was put forward. The reliable settlement results are obtained by means of multi-sensor data fusion. Finite element model of pile-group foundation is established. By analysis of finite element simulated calculation of pile-group foundation, rules of settlement and uneven settlement obtained by monitoring and calculation results are coincident and the absolute error of settlement between them is 4.7 mm. The research shows that it is reasonable and feasible to monitor settlement of pile-group foundation with the system, and it can provide a method for the same type pile-group foundation in deep water. 展开更多
关键词 pile-group foundation SETTLEMENT monitoring system multi-sensor data fusion
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Application of a microseismic monitoring system in deep mining 被引量:14
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作者 Chengxiang Yang Zhouquan Luo Guobin Hu Xiaoming Liu 《Journal of University of Science and Technology Beijing》 CSCD 2007年第1期6-8,共3页
A microseismic monitoring system was used in the Donggua Shan underground copper mine, and its application was introduced. The spacial distribution of the seismic event was monitored effectively during mining with thi... A microseismic monitoring system was used in the Donggua Shan underground copper mine, and its application was introduced. The spacial distribution of the seismic event was monitored effectively during mining with this system. The distribution of the seismic intensity in different time periods and in the different mining districts was obtained via the clustering analysis of the monitored results, and the different intensity concentration districts of seismicity were compartmentalized. The various characteristics and waveforms of different vibrations in the underground mine were revealed with the help of the micro-seismic monitoring system. It was proved that the construction and application of the micro-seismic monitoring system in the mine not only realized the continuous monitoring of seismicity in the deep mine, but also settled an this system. 展开更多
关键词 MICROSEISMICITY monitoring EVENT deep mining important foundation for further studies on hazard prediction based on
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Study on remote monitoring system for landslide hazard based on Wireless Sensor Network and its application 被引量:6
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作者 GUI Yang TAO Zhi-gang +1 位作者 WANG Chang-jun XIE Xing 《Journal of Coal Science & Engineering(China)》 2011年第4期464-468,共5页
Based on Beidou satellite communication platform, sliding force remote monitoring and warning system was widely used in Lingbao Luoshan gold ore, which had achieved remarkable social and economical benefits. However, ... Based on Beidou satellite communication platform, sliding force remote monitoring and warning system was widely used in Lingbao Luoshan gold ore, which had achieved remarkable social and economical benefits. However, there is one monitoring point at every 1 000 m2, and their distribution is so discrete that it will no doubt increase construction and operation cost if every monitoring point was installed a Beidou subscriber machine. Therefore, based on Zigbee wireless sensor network technology, network structure and the nodes, embed wireless sensor node in remote monitoring and warning system, a base platform of local wireless sensor network is formed, and it can combine punctiform monitoring information with planar network and transmit concentrated information through Beidou satellite terminal machine; as a result, this largely expands the transmission distance of monitoring data 展开更多
关键词 landslide monitoring warning system information collecting
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Design and Application of the Automatic Monitoring System for Wastewater Source in Shandong Province 被引量:1
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作者 WU Yun WANG Xing-wu +1 位作者 LI Yan FAN Su-fang 《Meteorological and Environmental Research》 2012年第9期50-54,共5页
In order to realize real-time online monitoring of the wastewater source enterprises,manage and issue monitoring information,this paper comprehensively uses automatic control,embedded data acquisition and transmission... In order to realize real-time online monitoring of the wastewater source enterprises,manage and issue monitoring information,this paper comprehensively uses automatic control,embedded data acquisition and transmission,distributed computing and data processing,geographic information system,etc.to develop automatic monitoring system of the wastewater source in Shandong Province.This system incorporates automatic monitoring information acquisition,transmission and daily work as an organic whole.The system realizes not only the continuous online monitoring of wastewater source enterprise,but also the deep excavation and utilization on monitoring information.It provides scientific and objective basis for energy saving,consumption reduction,carbon emission reduction,total amount control and other environmental management works,and meets the requirements of environmental management and related departments to wastewater source management. 展开更多
关键词 Wastewater source Automatic monitoring Quality control and auditing Information exchange platform China
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Decentralized and overall condition monitoring system for large-scale mobile and complex equipment
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作者 Cao Jianjun Zhang Peilin +1 位作者 Ren Guoquan Fu Jianping 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2007年第4期758-763,共6页
It is an urgent project to realize online and overall condition monitoring and timely fault diagnosis for large-scale mobile and complex equipment. Moreover, most of the existing large-scale complex equipment has quit... It is an urgent project to realize online and overall condition monitoring and timely fault diagnosis for large-scale mobile and complex equipment. Moreover, most of the existing large-scale complex equipment has quite insufficient accessibility of examination, although it still has quite a long service life. The decentralized and overall condition monitoring, as a new concept, is proposed from the point of view of the whole system. A set of complex equipment is divided into several parts in terms of concrete equipment. Every part is processed via one detecting unit, and the main detecting unit is connected with other units. The management work and communications with the remote monitoring center have been taken on by it. Consequently, the difficulty of realizing a condition monitoring system and the complexity of processing information is reduced greatly. Furthermore, excellent maintainability of the condition monitoring system is obtained because of the modularization design. Through an application example, the design and realization of the decentralized and overall condition monitoring system is introduced specifically. Some advanced technologies, such as, micro control unit (MCU), advanced RISC machines (ARM), and control area network (CAN), have been adopted in the system. The system's applicability for the existing large-scale mobile and complex equipment is tested. 展开更多
关键词 condition monitoring fault diagnosis micro control unit information fusion
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An Agent-Based Web-Services Monitoring System
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作者 Coimbatore S. Chandersekaranl William R. Simpson 《Computer Technology and Application》 2011年第9期675-685,共11页
An enterprise based on web services can benefit from computer-based monitoring for its normal course of business. No services, delayed services, inadequate services and poor or delayed information flow all hinder or p... An enterprise based on web services can benefit from computer-based monitoring for its normal course of business. No services, delayed services, inadequate services and poor or delayed information flow all hinder or prevent the normal course of business. The health of the service-oriented approach, the communication flow and the services themselves directly equate to the health and vitality of the enterprise. By health we mean, availability, performance, integrity, and reliability of web services. This paper proposes and details an agent based approach for web service monitoring in an enterprise environment. The objective of this approach is to provide enhanced security, improved help desk information and attribution across a diverse web services landscape that is logically a system but physically distributed. The definition of the agents, their logical locations, their functionality and relationships has not been described previously. This architecture provides many advantages over previous methodologies for event monitoring including assignment of overlapping responsibilities, reduction in help desk effort and placement of measurements throughout the upper layers of the web services system. This is also the first enumeration of significant events and information requirements at the service level. It also assigns responsibility to the components (agents, handlers or the service itself) for logging and alerting such events. This architecture is currently being implemented by a major defense entity. 展开更多
关键词 Help desk AGENT monitoring ENTERPRISE support services information sharing
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Performance Evaluation of Healthcare Monitoring System over Heterogeneous Wireless Networks
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作者 Sabato Manfredi 《E-Health Telecommunication Systems and Networks》 2012年第3期27-36,共10页
The wide diffusion of healthcare monitoring systems allows continuous patient to be remotely monitored and diagnosed by doctors. The problem of congestion, namely due to the uncontrolled increase of traffic with respe... The wide diffusion of healthcare monitoring systems allows continuous patient to be remotely monitored and diagnosed by doctors. The problem of congestion, namely due to the uncontrolled increase of traffic with respect to the network capacity, is one of the most common phenomena affecting the reliability of transmission of information in any network. The aim of the paper is to build a realistic simulation environment for healthcare system including some of the main vital signs model, wireless sensor and mesh network protocols implementation. The simulator environment is an efficient mean to analyze and evaluate in a realistic scenario the healthcare system performance in terms of reliability and efficiency. 展开更多
关键词 Modeling Simulation and MANAGEMENT of HEALTH-CARE systems Applications of Information and Communication Technologies to HEALTH-CARE MANAGEMENT E-HEALTH REMOTE Health monitoring TELEMEDICINE CHRONIC Disease MANAGEMENT
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Research on Transmission Line Tower Tilting and Foundation State Monitoring Technology Based onMulti-Sensor Cooperative Detection and Correction
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作者 Guangxin Zhang Minghui Liu +4 位作者 Shichao Cheng Minzhen Wang Changshun Zhao Hongdan Zhao Gaiming Zhong 《Energy Engineering》 EI 2024年第1期169-185,共17页
The transmission line tower will be affected by bad weather and artificial subsidence caused by the foundation and other factors in the power transmission.The tower’s tilt and severe deformation will cause the buildi... The transmission line tower will be affected by bad weather and artificial subsidence caused by the foundation and other factors in the power transmission.The tower’s tilt and severe deformation will cause the building to collapse.Many small changes caused the tower’s collapse,but the early staff often could not intuitively notice the changes in the tower’s state.In the current tower online monitoring system,terminal equipment often needs to replace batteries frequently due to premature exhaustion of power.According to the need for real-time measurement of power line tower,this research designed a real-time monitoring device monitoring the transmission tower attitude tilting and foundation state based on the inertial sensor,the acceleration of 3 axis inertial sensor and angular velocity raw data to pole average filtering pre-processing,and then through the complementary filtering algorithm for comprehensive calculation of tilt angle,the system meets the demand for inclined online monitoring of power line poles and towers regarding measurement accuracy,with low cost and power consumption.The optimization multi-sensor cooperative detection and correction measured tilt angle result relative accuracy can reach 1.03%,which has specific promotion and application value since the system has the advantages of unattended and efficient calculation. 展开更多
关键词 Transmission line tower tilting MULTI-SENSOR foundation state monitoring collaborative detection
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Implantable Electrochemical Microsensors for In Vivo Monitoring of Animal Physiological Information
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作者 Jin Zhou Shenghan Zhou +4 位作者 Peidi Fan Xunjia Li Yibin Ying Jianfeng Ping Yuxiang Pan 《Nano-Micro Letters》 SCIE EI CSCD 2024年第3期183-211,共29页
In vivo monitoring of animal physiological information plays a crucial role in promptly alerting humans to potential diseases in animals and aiding in the exploration of mechanisms underlying human diseases.Currently,... In vivo monitoring of animal physiological information plays a crucial role in promptly alerting humans to potential diseases in animals and aiding in the exploration of mechanisms underlying human diseases.Currently,implantable electrochemical microsensors have emerged as a prominent area of research.These microsensors not only fulfill the technical requirements for monitoring animal physiological information but also offer an ideal platform for integration.They have been extensively studied for their ability to monitor animal physiological information in a minimally invasive manner,characterized by their bloodless,painless features,and exceptional performance.The development of implantable electrochemical microsensors for in vivo monitoring of animal physiological information has witnessed significant scientific and technological advancements through dedicated efforts.This review commenced with a comprehensive discussion of the construction of microsensors,including the materials utilized and the methods employed for fabrication.Following this,we proceeded to explore the various implantation technologies employed for electrochemical microsensors.In addition,a comprehensive overview was provided of the various applications of implantable electrochemical microsensors,specifically in the monitoring of diseases and the investigation of disease mechanisms.Lastly,a concise conclusion was conducted on the recent advancements and significant obstacles pertaining to the practical implementation of implantable electrochemical microsensors. 展开更多
关键词 Electrochemical microsensors Implantable sensors In vivo monitoring Animal physiological information
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Application and prospects of spatial information technology in CO_(2)sequestration monitoring
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作者 LYU Weifeng LI Yushu +4 位作者 WANG Mingyuan LIN Qianguo JIA Ninghong JI Zemin HE Chang 《Petroleum Exploration and Development》 SCIE 2024年第3期727-740,共14页
This paper systematically reviews the current applications of various spatial information technologies in CO_(2)sequestration monitoring,analyzes the challenges faced by spatial information technologies in CO_(2)seque... This paper systematically reviews the current applications of various spatial information technologies in CO_(2)sequestration monitoring,analyzes the challenges faced by spatial information technologies in CO_(2)sequestration monitoring,and prospects the development of spatial information technologies in CO_(2)sequestration monitoring.Currently,the spatial information technologies applied in CO_(2)sequestration monitoring mainly include five categories:eddy covariance method,remote sensing technology,geographic information system,Internet of Things technology,and global navigation satellite system.These technologies are involved in three aspects:monitoring data acquisition,positioning and data transmission,and data management and decision support.Challenges faced by the spatial information technologies in CO_(2)sequestration monitoring include:selecting spatial information technologies that match different monitoring purposes,different platforms,and different monitoring sites;establishing effective data storage and computing capabilities to cope with the broad sources and large volumes of monitoring data;and promoting collaborative operations by interacting and validating spatial information technologies with mature monitoring technologies.In the future,it is necessary to establish methods and standards for designing spatial information technology monitoring schemes,develop collaborative application methods for cross-scale monitoring technologies,integrate spatial information technologies with artificial intelligence and high-performance computing technologies,and accelerate the application of spatial information technologies in carbon sequestration projects in China. 展开更多
关键词 CO_(2)geological sequestration CO_(2)sequestration monitoring spatial information technology CO_(2)leakage CCUS
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Contribution of the MERISE-Type Conceptual Data Model to the Construction of Monitoring and Evaluation Indicators of the Effectiveness of Training in Relation to the Needs of the Labor Market in the Republic of Congo
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作者 Roch Corneille Ngoubou Basile Guy Richard Bossoto Régis Babindamana 《Open Journal of Applied Sciences》 2024年第8期2187-2200,共14页
This study proposes the use of the MERISE conceptual data model to create indicators for monitoring and evaluating the effectiveness of vocational training in the Republic of Congo. The importance of MERISE for struct... This study proposes the use of the MERISE conceptual data model to create indicators for monitoring and evaluating the effectiveness of vocational training in the Republic of Congo. The importance of MERISE for structuring and analyzing data is underlined, as it enables the measurement of the adequacy between training and the needs of the labor market. The innovation of the study lies in the adaptation of the MERISE model to the local context, the development of innovative indicators, and the integration of a participatory approach including all relevant stakeholders. Contextual adaptation and local innovation: The study suggests adapting MERISE to the specific context of the Republic of Congo, considering the local particularities of the labor market. Development of innovative indicators and new measurement tools: It proposes creating indicators to assess skills matching and employer satisfaction, which are crucial for evaluating the effectiveness of vocational training. Participatory approach and inclusion of stakeholders: The study emphasizes actively involving training centers, employers, and recruitment agencies in the evaluation process. This participatory approach ensures that the perspectives of all stakeholders are considered, leading to more relevant and practical outcomes. Using the MERISE model allows for: • Rigorous data structuring, organization, and standardization: Clearly defining entities and relationships facilitates data organization and standardization, crucial for effective data analysis. • Facilitation of monitoring, analysis, and relevant indicators: Developing both quantitative and qualitative indicators helps measure the effectiveness of training in relation to the labor market, allowing for a comprehensive evaluation. • Improved communication and common language: By providing a common language for different stakeholders, MERISE enhances communication and collaboration, ensuring that all parties have a shared understanding. The study’s approach and contribution to existing research lie in: • Structured theoretical and practical framework and holistic approach: The study offers a structured framework for data collection and analysis, covering both quantitative and qualitative aspects, thus providing a comprehensive view of the training system. • Reproducible methodology and international comparison: The proposed methodology can be replicated in other contexts, facilitating international comparison and the adoption of best practices. • Extension of knowledge and new perspective: By integrating a participatory approach and developing indicators adapted to local needs, the study extends existing research and offers new perspectives on vocational training evaluation. 展开更多
关键词 MERISE Conceptual Data Model (MCD) monitoring Indicators Evaluation of Training Effectiveness Training-Employment Adequacy Labor Market Information systems Analysis Adjustment of Training Programs EMPLOYABILITY Professional Skills
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Wireless remote spatiotemporal monitoring of high-fill foundation deformation
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作者 YANG Xiao-hui LI Zhi-qian +1 位作者 ZHU Yan-peng GUO Nan 《Journal of Mountain Science》 SCIE CSCD 2023年第6期1620-1638,共19页
The spatial and temporal deformation patterns and deformation control indicators of highfill foundations directly affect the design,construction and operational safety of high-fill projects.In situ monitoring can comp... The spatial and temporal deformation patterns and deformation control indicators of highfill foundations directly affect the design,construction and operational safety of high-fill projects.In situ monitoring can comprehensively reflect the deformation of high-fill during and after construction.In this paper,we have first designed and installed an integrated wireless remote monitoring system for high-fill to achieve real-time dynamic monitoring of settlement,pore water pressure and soil pressure of the fill foundation.Based on the monitoring results of nearly one year of the construction period and two years after construction,it was found that the deformation amount and deformation rate of the high-fill foundation showed a non-linear growth relationship with the filling rate and filling height.The settlement deformation of the high-fill foundation during the loading period was mainly dominated by the original foundation soil,accounting for 54.4%of the total settlement on average;the settlement deformation during the post-construction period was mainly dominated by the filling body,accounting for 77.04%of the total settlement on average,and the settlement deformation during the post-construction period mainly occurred in the first year after construction.The analysis of the deformation mechanism suggests that the deformation of the filling body is dominated by exhaust consolidation during the loading period and drainage consolidation during the post-construction period;the deformation of the original foundation soil is dominated by drainage consolidation during the loading period and drainage consolidation develops slowly during the post-construction period.It is recommended that the original foundation should be reinforced before the large area filling construction,and that the filling rate should be strictly controlled during construction.The research results can provide a scientific basis for deformation calculation and stability assessment of high-fill foundations. 展开更多
关键词 High-fill engineering Wireless remote monitoring foundation deformation Spatiotemporal law Settlement after construction
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Doppler Radar Fault Judgment System and Remote Monitoring Platform
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作者 Yi ZHANG Xuejiao YAN 《Meteorological and Environmental Research》 CAS 2023年第4期32-33,共2页
The Doppler weather radar fault judging system and remote monitoring platform were introduced.Through the real-time scanning of radar alarm information coding,the platform can realize dynamic monitoring and real-time ... The Doppler weather radar fault judging system and remote monitoring platform were introduced.Through the real-time scanning of radar alarm information coding,the platform can realize dynamic monitoring and real-time alarm of Doppler radar equipment components,so as to improve the reliability of equipment operation,and truly realize"unattended"remote monitoring. 展开更多
关键词 Doppler radar Alarm information Remote monitoring
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Real-Time Grouting Monitoring and Visualization Analysis System for Dam Foundation Curtain Grouting
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作者 樊贵超 钟登华 +3 位作者 任炳昱 崔博 李晓超 岳攀 《Transactions of Tianjin University》 EI CAS 2016年第6期493-501,共9页
A real-time monitoring and 3D visualization analysis system is proposed for dam foundation curtain grouting. Based on the real-time control technology, the optimization method and the set theory, a mathematical model ... A real-time monitoring and 3D visualization analysis system is proposed for dam foundation curtain grouting. Based on the real-time control technology, the optimization method and the set theory, a mathematical model of the system is established. The real-time collection and transmission technology of the grouting data provides a data foundation for the system. The real-time grouting monitoring and dynamic alarming method helps the system control the grouting quality during the grouting process, thus, the abnormalities of grouting, such as jacking and hydraulic uplift, can be effectively controlled. In addition, the 3D grouting visualization analysis technology is proposed to establish the grouting information model(GIM). The GIM provides a platform to visualize and analyze the grouting process and results. The system has been applied to a hydraulic project of China as a case study, and the application results indicate that the real-time grouting monitoring and 3D visualization analysis for the grouting process can help engineers control the grouting quality more efficiently. 展开更多
关键词 dam foundation curtain grouting real-time monitoring dynamic alarming model grouting informationmodel (GIM) 3D visualization analysis
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Monitoring System for Field Soil Water Content Based on the Wireless Sensor Network 被引量:1
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作者 张增林 郁晓庆 《Agricultural Science & Technology》 CAS 2012年第1期242-244,F0003,共4页
[Objective] To water content monitoring study the application of wireless sensor network in field so and to discuss the methods for solving the problems of low sampling rate, high cost and poor real-time in actual mon... [Objective] To water content monitoring study the application of wireless sensor network in field so and to discuss the methods for solving the problems of low sampling rate, high cost and poor real-time in actual monitoring. [Method] The architecture of wireless sensor network, network nodes, hardware design as well as principle for the program structure of software operating system and corresponding parameters were analyzed to illustrate the characteristics of monitoring system for field soil water content based on wireless sensor network, and the advantages in application of this system. [Result] Sensor nodes could correctly collect and transmit soil water content, realize stable data transmission of soil water content, indicating that wireless sensor network is suitable for real-time monitoring of field soil water content. [Conclusion] This study indicates that wireless sensor network possesses a widely application foreground in the development of agriculture. 展开更多
关键词 Agriculture environment monitoring Wireless sensor networks ZIGBEE Information acquisition
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A promising trend for field information collection:An air-ground multi-sensor monitoring system 被引量:3
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作者 Yawei Zhang Du Chen +1 位作者 Shumao Wang Lei Tian 《Information Processing in Agriculture》 EI 2018年第2期224-233,共10页
Timely identifying and quantifying significant spatial and temporal variability in agricultural field has been a crucial factor for improving agricultural production and management.This paper focuses on the mainstream... Timely identifying and quantifying significant spatial and temporal variability in agricultural field has been a crucial factor for improving agricultural production and management.This paper focuses on the mainstream techniques and applications can be adopted to improve the field information collection method.In this paper,the development of wireless sensor networks(WSNs)and remote sensing(RS)technology were reviewed,especially the micro unmanned aerial vehicle(mUAV)-based WSNs and mUAV-based RS by analyzing its applications in field information collection,and pointed out its existing benefits and limitations.A system encompassed multiple technique approaches was proposed in this paper which is called air-ground multi-sensor monitoring system.With the diversification methods of in-field information collection and the improvement of detection precision,an infield information collection system will play an important role in controlling the farming operations of mechanized agriculture and optimizing the management of agricultural machinery group.In the future,the combination of mUAV,WSNs and RS for crop and soil monitoring will become a powerful tool to obtain field information,increase production,optimize the overall farming practices and input of resources and provide comprehensive reference for the study of soil-crops-machine relationships. 展开更多
关键词 Field information collection mUAV-based WSNs mUAV-based RS Multi-sensor monitoring system
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Internet based environmental monitoring information system and its application in Yili Prefecture 被引量:7
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作者 Deng Xiang-zheng Liu Ji-yuan +1 位作者 Zhuang Da-fang Zhan Jin-yan 《Journal of Geographical Sciences》 SCIE CSCD 2002年第2期40-47,共8页
With the development of Internet technologies, Internet Based Information System (IBIS) arises with more advantages: Firstly, it is convenient for users to use owing to the introduction of Internet technologies. Secon... With the development of Internet technologies, Internet Based Information System (IBIS) arises with more advantages: Firstly, it is convenient for users to use owing to the introduction of Internet technologies. Secondly, it benefits greatly the data dissemination and data sharing based on Internet. The most important but not the last is that we can establish the information service network supported by its technologies and the facilities of information highway. So, it would be significant to design IBIS to realize the data collection, sharing and dissemination on Internet. There are many factors affecting regional environment. So it is not easy to realize the integrated environmental monitoring. Given this, we designed the Internet based environmental monitoring information system. By the virtue of the Internet based environmental monitoring information system, the management and storage of environmental monitoring data would be easier, which lays the foundation to actualize the environmental monitoring efficiently. 展开更多
关键词 environmental monitoring GIS information system INTERNET Web GIS Yili Prefecture
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Sensor monitoring of a newly designed foundation pit supporting structure 被引量:3
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作者 杨宇友 吕建国 +1 位作者 黄学刚 涂晓明 《Journal of Central South University》 SCIE EI CAS 2013年第4期1064-1070,共7页
A new type of pit supporting structure, which was tested and verified using the sensor monitoring technology, was presented. The new supporting structure is assembled by prefabricated steel structural units. The adjac... A new type of pit supporting structure, which was tested and verified using the sensor monitoring technology, was presented. The new supporting structure is assembled by prefabricated steel structural units. The adjacent steel structural units are jointed with fasteners, and each steel structural unit has a certain radian and is welded by two steel tubes and one piece of steel disc. In order to test and verify the reliability of the new supporting structure, the field tests are designed. The main monitoring programs include the hoop stress of supporting structure, lateral earth pressure, and soil deformation. The monitoring data of the field tests show that the new supporting structure is convenient, reliable and safe. 展开更多
关键词 foundation pit supporting structure sensor monitoring earth pressure horizontal displacement
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A distributed pavement monitoring system based on Internet of Things 被引量:3
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作者 Zhoujing Ye Ya Wei +2 位作者 Jianfeng Li Guannan Yan Linbing Wang 《Journal of Traffic and Transportation Engineering(English Edition)》 EI CSCD 2022年第2期305-317,共13页
Pavement is an important part of transportation infrastructure.In order to maintain pavement before the damage and improve the service quality,it is necessary to develop an intelligent and durable pavement information... Pavement is an important part of transportation infrastructure.In order to maintain pavement before the damage and improve the service quality,it is necessary to develop an intelligent and durable pavement information monitoring system.However,the pavement dynamic response monitoring is highly costly,easily obsolete and statistically redundant.The emergence of the Internet of Things(IoT)technology promises to change that.In this paper,an architecture of a distributed road IoT monitoring system is proposed,which has an acquisition layer,a preprocessing layer,a processing layer,an interaction layer,an energy layer and a network layer.Then,a prototype wireless pavement vibration monitoring system based on the IoT is developed,which consists of a number of wireless sensing nodes,a gateway,a remote server and a browser.Finally,data preprocessing,wireless communication,time synchronization,data processing and visualization,which represent the key to an effective system,are tested and discussed.The prototype wireless pavement vibration monitoring system provides a viable scheme for upgrading the IoT system and its application in the road infrastructures.In the future,any smart road will have an IoT wireless monitoring system to monitor the traffic,environment,and pavement information,which help enable traffic guidance,signal control,danger warning,scientific maintenance decision-making. 展开更多
关键词 monitoring system Internet of things Pavement vibration Wireless communication Traffic information
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Frontier of continuous structural health monitoring system for short&medium span bridges and condition assessment 被引量:3
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作者 Ayaho MIYAMOTO Risto KIVILUOMA Akito YABE 《Frontiers of Structural and Civil Engineering》 SCIE EI CSCD 2019年第3期569-604,共36页
It is becoming an important social problem to make maintenance and rehabilitation of existing short and medium span(10-20 m)bridges because there are a huge amount of short and medium span bridges in service in the wo... It is becoming an important social problem to make maintenance and rehabilitation of existing short and medium span(10-20 m)bridges because there are a huge amount of short and medium span bridges in service in the world.The kernel of such bridge management is to develop a method of safety(condition)assessment on items which include remaining life and load carrying capacity.Bridge health monitoring using information technology and sensors is capable of providing more accurate knowledge of bridge performance than traditional strategies.The aim of this paper is to introduce a state-of-the-art on not only a rational bridge health monitoring system incorporating with the information and communication technologies for lifetime management of existing short and medium span bridges but also a continuous data collecting system designed for bridge health monitoring of mainly short and medium span bridges.In this paper,although there are some useful monitoring methods for short and medium span bridges based on the qualitative or quantitative information,mainly two advanced structural health monitoring systems are described to review and analyse the potential of utilizing the long term health monitoring in safety assessment and management issues for short and medium span bridge.The first is a special designed mobile in-situ loading device(vehicle)for short and medium span road bridges to assess the structural safety(performance)and derive optimal strategies for maintenance using reliability based method.The second is a long term health monitoring method by using the public buses as part of a public transit system(called bus monitoring system)to be applied mainly to short and medium span bridges,along with safety indices,namely,"characteristic deflection"which is relatively free from the influence of dynamic disturbances due to such factors as the roughness of the road surface,and a structural anomaly parameter. 展开更多
关键词 condition assessment short&medium span BRIDGE structural health monitoring(SHM) long-term data collection system maintenance BRIDGE performance information technology LOADING vehicle(public bus) in-situ LOADING
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