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Using the features and technology of wireless sensor networks such as distributed and self-organization to build substation temperature monitoring system, which can monitor the temperature of bus bar junction of the high voltage switchgear in substation in real time to prevent fire and other accidents. This system applies ZigBee communication protocol, and uses the CC2430 as RF transceiver. It has...
An automation system, commonly referred to as a Process Control System or Supervisory Control and Data Acquisition (SCADA) System, is critical to the efficient operation, safe and reliable of so many Industrial Processes. Process Control System (PCS) is used widely in infrastructure (including electric power, water, petroleum, and natural gas), as well as in various manufacturing operations. Electronic...
Third-generation DCS (Distributed Control System) employ powerful object-oriented design technology to enable efficiency improvements within daily operations and maintenance activities. DCS is operated either in single mode and or it is interfaced with other systems such as PLC, SCADA, and Etc. via network for enhanced functionality. Developing Distributed Control System is a major industrial concern...
Developing monitoring in Distributed Control System is a major industrial concern since those systems are more and more complex and involved in many safety critical application fields. The Distributed Control System (DCS) is being widely used in Power, Steel manufacturing, Oil and Gas, and Petrochemicals for monitoring, advance process control, regulatory and sequential control and various other functions...
This paper analyzes the 20 percent Sn4+-doped titania films who were prepared on the quartz glass humidity sensor by complex impedance analysis, improves the equivalent circuit model whose circuit description code is R(C(R(RC))). This equivalent circuit uses the constant phase angle element Q instead of the capacitance C in the second resistance-capacitance parallel entries, and its circuit description...
In this paper we present DSMAC-an energy efficient medium access control (MAC) protocol in wireless sensor networks which are widely used for long-time monitoring. Our protocol is designed for event-driven and ultra-low power sensor networks. Using dynamic sleep scheme to save energy is one of the key problems in this kind of system. The basic idea is that, when an event is apperceived by sensors,...
The fatal accidents of mine hoist, such as cage jam and rope slack, can't be prevented effectively at present. In this paper, we propose a stress wireless monitoring system based on ZigBee communication technology in order to monitor the mine hoist by measuring the sheave wheel stress. First, we design. The system includes two parts: the data collector and controller, which monitor and transmit the...
According to the circulation process of financial indicators flow, data flow, capital flow involved in financial supervision work, based on the financial data center, designs a five-story architecture for the system including monitoring and analysis of budget preparation, monitoring and analysis of budget adjustments, monitoring and analysis of budget implementation, monitoring and analysis of accounts...
Passive microwave plays an important role in soil moisture monitoring. In this study, a layered soil emission model has been built based on theory of radiative transfer, combined with the random rough surface, soil dielectric constant model and soil moisture algorithm. The soil moisture in different frequencies was simulated and the look-up table set was established between soil moisture and soil...
This paper probes into the design of the intelligent monitoring system based on S3C2440 ARM microprocessor. It focuses on the difficult points of developing the GUI applications based on Qt/Embedded and the Linux drivers for various types of sensors in the Lab Intelligent Monitoring System project, achieving the combination of Qt/Embedded and the linux system programming.
A new level sensor was developed for monitoring the crane rotary base's horizontality. The sensor utilized the dual-axis accelerometer SCA100T as sensitive element integrated digital signal processing, microcontroller technologies and LCD display technology which showed the angle of the crane rotary base and the horizontal plane on the LCD displayer by numerical forms. Experimental data analysis shows...
As an important means of obtaining spatial data, the unmanned aerial vehicle (UAV) remote sensing has such advantages as real-time, flexible, high-resolution, cost-effective etc, and it can gather information in dangerous environments without risk to flight crews. Because UAV remote sensing is a powerful supplement of spaceborne remote sensing and airborne remote sensing, it has enormous potential...
Base on analysis of influence factor about strip's convexity degree and transverse thickness, established online monitoring system of cold rolling strip's thickness and convexity degree, to emulate by application of LabVIEW software, and compare with the practical situation, as result of it could mainly meet requirement of online virtual monitoring.
In high performance computing environment in many fields, to finish a task requires not only computing service, but also data service and all kinds of device services, which results in different relation dependences and is very complex, however, job management systems such as PBS, LSF, and Condor and so on, only support time dependence among jobs, and are short of fault-tolerance and complete flow...
This paper use current relatively mature SCM technology, apply current advanced MCU chip as the core, follow GSM07.05 protocol specification to develop hardware platform. The system can automatically send a customized message to a designated number when it meets trigger conditions. With this matching upper machine system as a rescue center platform, it need to timely accurate receive “accident” the...
The amount of information in real-time video monitoring is very large. So, the disk space is used largely, and the network congestion is easy to caused. In order to reduce the network congestion, save storage space, take out noneffective information in video, video key-frames are extracted in sending end and video is resumed in receiving end. A real-time video monitoring system is implemented. A kind...
This dissertation develops a new approach of feature extraction for tool wear based on Acoustic emission, an application of Hilbert-Huang transform method to feature extract is presented. Using the empirical mode decomposition of the original times series data, the Hilbert transform is applied to each intrinsic mode function. Then our emphasis is how to calculate the Hilbert spectrum and the Hilbert...
Due to the incompleteness and complexity of the evaluation information in the human-machine interface evaluation, it is difficult to evaluate the human-machine interface with the traditional evaluation methods. In order to overcome these problems, grey interval relation membership degree is applied in the field of human-machine interface evaluation in this paper. The concept of membership degree is...
Prediction of the seawall foundation settlement is important to the engineering maintenance and disaster prevention. A new method based on the improved variable dimension fraction (IVDF) and artificial neural network (ANN) was presented on the example of the seawall located in Zhejiang Province of China. The settlement displacement analysis for a single point located on the seawall was performed....
In the large-scale area lighting device collaboration system, because of the exclusivity of lighting device control, it is unavoidable to generate lighting device conflict when there are multi-tasks concurrently execute. This paper presents a lighting device conflict detection mechanism in the large-scale area lighting device collaboration system. Aiming the characteristic of multilevel device operation,...
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