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Liquid crystal display technology requires the spectral power distribution measurement of the displayed RGB colors. Such measurement tasks are typically resolved by means of spectrophotometers and the measured data is used in several applications. The costs of color management methods have been decreasing recently mainly because of the reduced costs of spectrophotometric equipment. However the hardware...
Intrabody communication using the human body as the transmission channel enables low-power wireless communication within a body area network. Using intelligent nodes it is expected that condensed information packets are transmitted between nodes reducing the data rate to a few kbit/s. This paper investigates the practical low-frequency transmission quality using capacitive signal coupling via custom-made...
Information technologies are a helpful tool in the teacher-student interaction. Teachers can give support to students without the need for an 100% in person contact, which is needed in the context of Bologna paradigm. For many activities, no schedule match is needed, since students access to resources and send requests to teachers whenever they need. In this paper the work of two Electrical Engineering...
Supporting technology is really useful in control education. In fact, virtual instrumentation is one of these technologies that can offer new possibilities in education process. In this paper, we describe how designing, modeling, analyzing, and prototyping can be done using LabVIEW on intelligent control systems. For this, we report the projects actually developed at ITESM university in Mexico and...
As researchers push for Exascale computing, one of the emerging challenges is system resilience. Unlike fault-tolerance which corrects errors, recent reports suggest that resilient systems will need to continue to make progress on an application despite faults. A first step in developing a resilient system is to have robust, scalable system monitoring. The work described here presents a novel, minimally-invasive...
This works mainly introduces the main equipments and control system of bar cooling bed, the implementation, the key control of the system and the common solution to the problem. The system includes PLC, DC drives, AC variable frequency speed control, hydraulic systems, the two-level network: basic automatic level (Genius Bus) and the upper monitor (EtherNet).
Used fixed equal step cubic spline interplolation in non-circular machining, the influence of acceleration may be too strong to cause burns and vibration. To suppress the acceleration influence of feed axis, take cam grinding as an illustration, first derived acceleration and its change from the cubic spline function, then adopting the method of off-line fuzzy model logical reasoning combined with...
In order to study the displacement ventilation system in winter, TVOC concentration field, velocity field and temperature field are simulated by FLUENT software which use standard k-ε turbulence model combined with wall function method. The study conclude that in winter displacement ventilation can be achieved by using ceiling radiant heating system and warm air-curtain which is set in the cold wall.
This paper presents a cost-effective approach to design an embedded autopilot system for a 4-rotor aerial vehicle. The system is targeted for autonomous control research, and it consists of an onboard system and a ground station. The onboard system interfaces with the vehicle and provides data link for sensor measurements and control data. The ground station provides a user-friendly interface for...
This paper introduces definition and characteristics of building information model (BIM), analysis and compares the three typical solutions of BIM in present. The lifecycle management of construction project based on BIM is analyzed thoroughly, and thought that the usage of BIM may solve the problem of information demand in the lifecycle management of construction project, and changes the way of information...
One of oldest and best-known methods used in constructive testing of smaller programs is the symbolic program execution. It is partly similar to method of simulation of computer function, but differs in aim. One of ways to prove whether given program is written correctly is to execute it symbolically. Aim of this paper is to test ramified program structure using single symbolic set of inputs, in one...
Time synchronization is one of the key points in distributed real-time computer system. At first, a time synchronization method under 1PPS signal is put forth. Secondly, two kinds of relevant synthetic disturbance are analyzed, and time synchronization logic is studied to cope with the disturbance. Arena software is chosen to model and simulate the time synchronization procedure. At last, the whole...
In order to settle the present problem of lack of laboratory equipment in colleges, it supplies a method of creating remote virtual laboratory with taking a specific experiment for example: it programs the computer with the software LabVIEW on the base of connecting hardware and computer well, and then use Web publish and DataSocket in LabVIEW to make the remote control functions of experiments true...
The system focused on the detection of integrated multi-parameter in the fermentation industry. We can achieve parameters of glucose, lactic acid and glutamic acid just by one sample and one sensor. The ancillary instrumentation based on m16(AVR) revealed the values of multi-parameter detection, simple and accurate, with some useful functions such as storage, query, upload etc.
In the paper, a simple motion controller based on LM628 is developed, aiming at the few axes medium-sized and minitype numerical control system. This controller achieves many functions, such as multi-axes linkage, beeline and circular arc interpolation, position and condition reporting, digital PID filter, special I/O and configurable I/O and so on. It can be used to numerical control machine tool...
This article describes the status of NC milling post-processing, the importance and related requirements to develop a general post-processing platform, and tell us how to use a computer language produce all kinds of programs which suitable for all kinds of machine system, through different post-processing on CLS tool-position file.
PHP and MYSQL has been the main web development tool for it is free and open source. The authors have discussed the environmental issues in development process based on PHP and MYSQL and the implementation process of the website ZhuoQi.
A sort of shutting valves scheme was brought forward when heat-supply network failed and a kind of network recomposition system of topology was suggested here. Based on the normal condition topology structure, this system could automatically recompose fault conditions topology structure according to the way of shutting valves scheme. Validity and effectiveness of this method was verified by a real...
In order to improve the management efficiency and convenience of the access control system in intelligent building, according to the new demand, a network entrance guard management software has been in this paper developed based on original software for single computer system. Inquiring real-time network data, browsing real-time information and long-distance monitoring can be realized by use of the...
In order to realize the integration of design and calculation of dripping irrigation pipeline in AutoCAD, this paper developed a set of software which is embedded in AutoCAD and used for pipeline calculation. As an integrated development software, VBA can share and exchange data with other VBA programs directly. This makes connecting with other software and processing data more easy. Using AutoCAD...
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