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This paper presents the virtual instrument used to monitor and analyze the behavior of Uninterruptible Power Supplies (UPS) system. The monitoring system includes: Hall effect sensors, data acquisition board, the LabVIEW environment and PC host. The applications enable the equipment to perform the functions of digital scope and analyze the following parameters: harmonic content, total harmonic distortion...
This paper presents the implementation of Virtual Instrumentation (VI) based system used for remote monitoring of selected environmental parameters: humidity, temperature, light intensity and methane. The educational benefits (learning outcomes) of this application are the following: design and implementation of the monitoring circuitry, programming for both LabVIEW and Arduino, understanding VI concepts...
In this paper, the process of prototype development of a home-based heart rate monitoring system using a virtual instrumentation platform is proposed. A prototype was implemented on the virtual instrumentation to enable transmission of heart rate information of a patient via short messaging services (SMS) and email notification at the prototyping stage. The experiment tests showed that the instrumentation...
Modern world is under tremendous pressure for alternative sources of energy and the trends are towards sustainable energy. Present power systems are facing heavy economic losses for poor power qualities. Efficiency of sustainable energy depends on the power quality of the supply. Presently, Power Quality issues are major problems for utilities, customers and end users. The cost of poor PQ is high...
This paper is a step forward by making real time control system design to monitor and control process variables to ensure its smooth operation and desired reliability. Liquid nitrogen level in the condenser is a core component of isotopic separation process to obtain (13C), so is needed a special focus on monitoring and control. The goal of the work is to design a controller for the liquid nitrogen...
With the development of low-voltage electrical apparatus toward intelligent, network, communication-capable, and its special application, it is necessary to realize remote supervisory for it. This paper designs a remote supervisory system for intelligent motor control protection device based on virtual instrument technology. The system realizes the communication of monitoring PC with lots-dot of motor...
Aiming at the need of detecting the residual current fire monitoring detector, an intelligent test system based on virtual instrument technology was designed. This system was composed of industrial computer, data acquisition card, signal conditioning circuit, three-phase great current generator and pneumatic fixture, etc. Using Lab VIEW virtual instrument technology platform, the related test and...
With the coming of the network era and the continuous improvement of information requirement, the fault diagnosis of devices is advancing from traditional mono device and field mode to distributed and remote mode, which can largely improve the ability of device maintenance. Several NI technologies are used in this paper to realize virtual instrument remote application and computer support collaborative...
With virtual instrumentation and graphical system design, the application requirements ultimately dictate the shape and form of the structural test and monitoring system. Virtual instrumentation offers more complete, more capable, and lower cost structural test and monitoring systems. This paper will provide an architectural view of modern structural test and monitoring systems, diving into both COTS...
It's necessary to measure each monomer cell voltage of the fuelcell stack in order to ensure fuelcell stack to operate normally. Therefore, a host computer monitoring management software for fuelcell voltage polling measurement based on virtual instrument programming software LabVIEW8.5 was developed. The host computer monitoring management software could show fuelcell's operation voltage to user...
A novel on-line monitoring and fault diagnosis system of power transformer using basic principle of three ratio method based on DGA (Dissolved Gases Analysis) and PNN(Probabilistic Neural Networks) for engineering application is proposed. According to tested dissolved gases contents changing characteristic of transformer oils under different transformer working conditions, the five characteristics...
High speed machining technology is used in a broad range of applications to machine ferrous metals and nonmetallic material. Based on its application, a motorized high speed, high power/torque spindle is the key technology that drives high speed machining. Performance monitoring determines if the equipment is operating as expected. This paper presents a new motorized spindle performance monitoring...
LabVIEW is a graphic programming language and widely used in measurement and control systems, but it don't have the ability of formal verification, this may cause potential hazards of conflict, collision and deadlock in large and complex measurement systems. This paper uses Petri net to model and analyse measurement and control system, then mappes it into LabVIEW. The two graphic languages are easy...
Aiming at the online fault diagnoses of the power cable, an online Power Cable Monitoring system is built by using the virtual instrument platform Lab VIEW. In the system, the monitoring surface is designed by using the graphical programming language, and the data acquisition card PCI6221 is used to capture the data and to monitor the state of the online cable. The experiment shows that the functions...
This paper researched on the PL-TCM pickling cold rolling mill of WISCO which was introduced from Mitsubishi - Hitachi Company. Design a mill monitoring and diagnostic system by LabVIEW, which can realize the new functions such as collecting, processing, displaying and storing the parameters such as mill rolling force, motor current and voltage, rotational speed, vibration; history data playback;...
The purpose of this work is to introduce a novel system developed to be used as back-up of a conventional UPS, in order to increase its autonomy and to warrant continue operation for long periods of time in the case of a power failure in the public grid. The system is constituted by a conventional UPS connected in parallel to a standalone PV system and a electronic system with facilities to control...
This paper presents an architecture and design of a solution for virtual instrumentation in SCADA systems. The aim of this approach is to propose a way to design virtual instrumentation based on software components, which ensures uniform, consistent and extensible access to the functions of the SCADA hardware components. Based on the proposed solution service-oriented application programming interface...
In this paper, the parameters to be measured non- invasively are fetal movement and uterine contractions with the help of novel MEMS based piezoelectric sensor as these may impose stress on the fetus. The recording was performed on 10 pregnant women in the age group of 26-38 weeks of gestation. The sensor shows the good results.
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.
This paper presents the State-of-the-Art and recent trends of SCADA system Architecture, which is usually three-layer SCADA system architecture depending on open system technology rather than a vendor controlled, proprietary technology. A Real-time Industrial process is simulated (boiling system), and a complete three-layer model SCADA system is developed for this process, supervision control layer,...
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