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Automation industry is moving towards more complex systems which are posing new challenges for operation from both machine and human perspectives. A group of challenges is related to management of the overwhelming information flow and to usability of the systems, and context-aware solutions have been recently introduced to the automation field in order to cope with challenges of this kind. The context...
The propulsive efficiency is the key issue related to the practical application of the robotic fish. The negative work of the muscle of the biological fish reveals the efficient propulsion mechanism of swimming. In this paper, a distributed control system is presented for the robotic fish in an experiment platform. In order to study the relationship among the parameters, the negative work and the...
Every year many vehicle departure accidents happen due to the driver's carelessness. Lane Departure Warning System (LDWS) is a kind of system which can relieve the stress of the drivers and reduce traffic accidents. But most traffic scenes have greater dynamic range than the digital camera at present. It makes the accuracy of the system would be affected by the complicated lighting. Traditional lane...
This paper presents a monitoring system of building electricity using IPv6 to establish a network. This smart metering system consists of three parts: the host software, the network and the sensor nodes. The network, whose data transmits via Zigbee wireless communication protocol, is designed based-on IPv6 protocol, and builds the IPv6 protocol on IEEE 802.15.4 wireless network. The Sensor node has...
Transmission on-off valve is an important component in the aircraft fuel system. It is directly related to the fuel supply security during the flight. Erosive wear is the main form of transmission on-off valve failure. it is said that Mathematical modeling of the dynamic characteristics of hydro-mechanical shut-off valves in typical aircraft fuel system, and the failure to model caused by Erosive...
Finite state machines (FSMs) are widely used as a mean to model the behavior of systems and/or processes, but they are not supported by general purpose programming languages. To avoid implementations that are difficult to develop, and mostly maintain, frameworks have been developed for the FSM domain. Ideally, frameworks should be easy to learn and use, and provide as much support as possible. They...
This paper proposes an in-coordinate interval adaptive Kalman filter for INS/GPS/SMNS (Inertial Navigation System/Global Position System/Scene Matching Navigation System) integrated navigation system in which SMNS has the characteristics of randomness and in-coordinate interval when it outputs the reliable positioning information. The proposed filter sets the period of the INS parameters analysis...
Security is one of the key concerns for control systems. Tools and simulators for the control system security have attracted a lot of attentions recently, because testing new solutions is a very important work for the control system security studies. In this paper, we firstly analyze the challenges of the security simulations for control system. Then, classification study is done for the existing...
Engineering of information and control systems for process and manufacturing facilities is a complex multidisciplinary effort. The engineering processes are often interwoven between different teams and enterprises making both the exchange of technical engineering data and management of engineering processes challenging. Business process management is applied to the engineering processes in order to...
In the case of failing equipment in industrial plants, the replacement time and effort must be kept at a minimum to increase the overall system availability. A well-designed Faulty Device Replacement (FDR) concept is therefore a central issue to the effective operation of industrial plants. Network enabled devices supporting FDR with minimum subsequent manual device configuration after replacement...
This paper presents a three-DOF permanent spherical actuator, with precise measurement system. As magnetic model is very useful to torque model and control model, magnetic model is the basis of spherical actuator study. A new analytical magnetic field model is presented for the proposed 3-DOF spherical actuator in this paper. This analytical magnetic field method combines the Laplace equation with...
The heterogeneity of device interfaces and the disparity between interconnection standards leads to difficulty in achieving seamless device interoperability. The Open Services Gateway Initiative (OSGi) framework attempts to provide a unified Residential Service gateway by abstracting from the device interface and providing transparent methods for Service Oriented Architectures. However, it is not...
A ceramic insulator has an excellent anti-pollution performance, but sometimes flashover occurs on it and then the outage of power network follows. This paper analyzes the formation mechanism of flashover and the result is that the RMS of leakage current(LC) and discharge pulses reflect the contamination severity approximately. This shows that to a large extent the flashover accident can be avoided...
Integration of simulators, data sources, optimizers and other tools is discussed in this paper. More exacting requirements on the quality of the plant operation together with environmental limits and lowering energy intensity bring more complex control systems into the everyday life. When controlling the complex multi-variable systems usually variety of control techniques can be applied in all layers...
In this paper, the law of change of aircraft center of gravity (CG) during fuel consumption is studied. The change of aircraft CG is discussed based on three different structures, such as single tank system, dual-symmetrical tank system and dual-asymmetrical tank system. Based on dual-symmetrical tank system, two fuel consumption modes are considered including the same consumption rate and different...
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