scholarly journals Research of Synchronous Jacking up Construction Monitoring and Control Technologies of Bridge

Author(s):  
Jia He ◽  
Xingzan Gao
Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 538
Author(s):  
Nicoleta Cristina Gaitan ◽  
Ioan Ungurean

The development of the smart building concept and building automation field is based on the exponential evolution of monitoring and control technologies. Residents of the smart building must interact with the monitoring and control system. A widely used method is specific applications executed on smartphones, tablets, and PCs with Bluetooth connection to the building control system. At this time, smartphones are increasingly used in everyday life for payments, reading newspapers, monitoring activity, and interacting with smart homes. The devices used to build the control system are interconnected through a specific network, one of the most widespread being the Building Automation and Control Network (BACnet) network. Here, we propose the use of the BACnet Application Layer over Bluetooth. We present a proposal of a concept and a practical implementation that can be used to test and validate the operation of the BACnet Application Layer over Bluetooth.


2010 ◽  
Vol 42 (5) ◽  
pp. 563-569 ◽  
Author(s):  
Robert J. Meyers ◽  
Eric D. Williams ◽  
H. Scott Matthews

2004 ◽  
Vol 126 (2) ◽  
pp. 297-310 ◽  
Author(s):  
Steven Y. Liang ◽  
Rogelio L. Hecker ◽  
Robert G. Landers

Research in automating the process level of machining operations has been conducted, in both academia and industry, over the past few decades. This work is motivated by a strong belief that research in this area will provide increased productivity, improved part quality, reduced costs, and relaxed machine design constraints. The basis for this belief is two-fold. First, machining process automation can be applied to both large batch production environments and small batch jobs. Second, process automation can autonomously tune machine parameters (feed, speed, depth of cut, etc.) on-line and off-line to substantially increase the machine tool’s performance in terms of part tolerances and surface finish, operation cycle time, etc. Process automation holds the promise of bridging the gap between product design and process planning, while reaching beyond the capability of a human operator. The success of manufacturing process automation hinges primarily on the effectiveness of the process monitoring and control systems. This paper discusses the evolution of machining process monitoring and control technologies and conducts an in-depth review of the state-of-the-art of these technologies over the past decade. The research in each area is highlighted with experimental and simulation examples. Open architecture software platforms that provide the means to implement process monitoring and control systems are also reviewed. The impact, industrial realization, and future trends of machining process monitoring and control technologies are also discussed.


Buildings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 92
Author(s):  
Kimmo Keskiniva ◽  
Arto Saari ◽  
Juha-Matti Junnonen

Construction production is steered with the help of monitoring task progressions and comparing them to the schedule. Construction monitoring is often imprecise. Especially in takt production, more detailed and systematic monitoring methods should be pursued. In takt production, production must be monitored frequently to make sure that the production follows the takt schedule. However, takt production monitoring methods have not been discussed in literature. In this study, a digital monitoring solution for takt production is developed and tested in a case apartment renovation project in Finland. At first, the production monitoring in the case project was done in paper format. This monitoring form was then developed into a digital monitoring application. The progression of production tasks was entered into the application manually. These entries were then automatically compared with a digital takt schedule. As a result, production status can be analyzed automatically and provide diverse information for the construction foremen. This information can be automatically visualized and used as a detailed status report for site meetings. Gathered information can also be revisited afterwards for development or reclamation purposes, for example.


2002 ◽  
Vol 46 (6-7) ◽  
pp. 241-246 ◽  
Author(s):  
W.J. Weber

Viable strategies for ensuring adequate supplies of potable water are essential to long-term societal sustainability. The steadily increasing necessity for multiple reuse of water in urban societies is even now taxing our technical and financial abilities to meet ongoing needs for water suitable for human consumption. As a consequence, the current practice of treating the entire water demands of urban communities to the increasingly stringent standards required for drinking water is becoming an unsustainable practice, and thus a questionable strategy for planning and development of urban water systems. An innovative technology-based concept for implementation of a more sustainable strategy and practice for potable water is developed here. The concept is predicated on the inherent advantages of flexibility and responsiveness associated with decentralization of complex functions and operations. Specifically, it calls for strategic dispersal of flexible advanced treatment and control technologies throughout urban water transport and storage networks. This is in direct contradistinction to current strategies and practices of centralized and inflexible monolithic facilities. By integrating use-related satellite systems with critical components of existing systems and infrastructures, the concept can enable and facilitate optimal cost-effective applications of highly sophisticated advanced treatment and on-line monitoring and control technologies to in-place infrastructures in a holistic and sustainable manner.


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