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To solve the problems of poor stability and real-time capability of the current substation RTU monitoring system, the RTU monitoring system based on GPRS and PLC was designed. PLC has the characteristics of powerful function, easy operation and strong reliability, so its application can cover almost all areas of industrial control. In order to know all the equipments' realtime running and alarm information...
Software and system prototyping is an undergraduate course for computer science major. Case studying is an effective instruction method for the course. A number of cases have been designed. One of such cases is autopilot system prototyping. Autopilot system is a complex real-time system with high safety and reliability. Some relevant critical issues must be simulated using rapid prototyping approach...
Functions and features of configuration software are introduced. They are discussed in details the design project, function and realization of real-time monitoring water supply system in configuration software and the result is given. The project has been in use in water supply system of Xi'an Xianyang International Airport. It indicates by operation that the design project is practical and stable.
The system is a new on-line monitor system. Which is consisted of a master station, which is a computer with intelligent CAN-bus interface unit, and a slave station, which is a monitor module for battery parameter measure. The paper introduced the hardware at first, which composed of the CPU circuit, the canbus interface, and then, focus on the software design, including the automatic monitoring of...
Based on the “digital city”, “smart city” is widely used in daily livelihood, environmental protection, public security, city services and other fields. In this paper, we mainly focus on recent research and the concept of “smart city”, summarizing the relationship between "smart city" and "digital city", putting forward the main content of application systems as well as the importance...
In order to verify the performance of the designed temperature controller of the plastic extruder using supercritical CO2, we developed a Hardware-In-the-Loop (HIL) simulation system. The specified HIL simulation system was founded upon the NI products, while the temperature controller and its accessorial parts were constructed in Matlab/Simulink environment. Labview and Simulink were combined together...
In order to improve real-time and robustness of the lane detection and get more ideal lane, in the image preprocessing, the filter is used in strengthening lane information of the binary image, reducing the noise and removing irrelevant information. The lane edge detection is by using Canny operator, then the corner detection method is used in getting the Image corners coordinates and finally using...
This paper presents definitions characterizing the concepts regarding cyber-physical systems and dependability. Cyber-physical systems incorporate computing, communication and storage capabilities with monitoring and/or control of entities in the physical world in a dependably, securely, efficiently and real-time way. The challenges of cyber-physical system research are concerning: real-time system...
In order to solve the problems of real-time techniques in traditional environmental monitoring system and the high expenditure of complex modern facilities, a low-cost real-time remote environmental monitoring system based on GSM short message was designed. It is made up of wireless environment monitoring equipment (WEME) and mobile phones. WEME uses solar power and has standard multi-pins data interface...
For quick realization of controller design and optimization of parameters in a project, avoiding the long-time and danger during debugging the project, a new co-simulation control method based on dSPACE and Siemens PID module FM355C was introduced. In this method the close-loop control system was set-up with the rapid control prototype method based on the dSPACE and its hardware environment, using...
The growing number of customers and their specific application domains for the NH90 has led to an increasing number of functionally different helicopter variants. In order to cope with the high number of software variants, the NH90 software team has developed a software architecture that is based on Software Product Line (SPL) principles. Military avionics systems are constrained by many factors that...
The application of LabView multithreading technology has realized the high-speed data collection based on CAN (Controller Area Network) Bus and the real-time online monitor for battery system based on Excel applying dynamic link library, operational control and many other technologies. Meanwhile, it provides the function of the historical data records, which offers important reference for the operation...
Robot Raconteur is a new distributed communication architecture and library designed for robotic and automation systems with distributed resources, including data and program modules. The motivation for this architecture is based on the need to rapidly connect sensors and actuators distributed across a network together in a development environment, such as MATLAB, without time consuming development...
Firstly, how to send the real-time data collected by each computer to all the computers in network for their monitoring, secondly, how to send the historical data to each computer in the whole network to ensure a consistent whole network data, In addition, how to send the command to an implementing computer, and control records of the whole network of other computers. Combining many aspects, this...
In this paper, we propose a method for resource recommendation based on topic model in an e-learning system. The Web provides an extremely large and dynamic source of information. So it is now increasingly popular to provide personalized service in document recommendation. Personalized service can reduce information overload and, hence, increase user satisfaction. Topic model is a generative model...
Real time monitoring system of digitized agricultural water supply is a complex engineering. In this paper, the software and hardware design principal of real time monitoring and management system in water resources and the integrated characteristics of structure are introduced. The general planning of real time monitoring system in integrated system in agriculture water supply is proposed. This system,...
TCP Vegas congestion algorithm was designed for wired networks, but has poor performance when used in mobile ad hoc network. This paper analyses the impact of hops changing in mobile ad hoc network on the performance of TCP Vegas, and presents a new algorithm named TCP Vegas-HA (TCP Vegas — Hops Adaptive) to improve the performance of TCP Vegas in mobile ad hoc network. As the minimum round-trip time...
The Human Machine Interface of engine monitoring system will be embedded in PC, the engine's running parameters could be acquisition, display and online adjustment in a real time by the serial communication. In this paper, an electronically controlled engine monitoring system has been designed by VB6.0, using the MSComm ActiveX of VB6.0 to achieve serial communication between PC and single-chip computer...
Distributed network of network communication raised new demands: first, how to collect each computer to accurate real-time data to the entire network all the computers for their monitoring, secondly, how the historical data to the whole Each computer network to ensure a consistent whole network data, In addition, how will a computer control command issued to the implementation of the right machine,...
In this paper, to achieve the real-time joystick control of redundant manipulators, two schemes are proposed and investigated: one scheme is a cosine-based position-to-velocity mapping, which maps the position of the joystick in the motion range to the velocity of the robot end-effector for the real-time end-effector velocity generation; and the other is a real-time joystick-controlled motion planning...
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