Data Acquisition Functions Research Articles

Based on OMAP Platform to Build the Distribution System Network of Relay Protection Devices in Coal Power

This article has carried on the analysis in view of the coal mine old communication network and the relay protection installment existence's question, Proposed based on the OMAP platform to build a coal mine power system relay protection program, elaborated the OMAP platform coal mine relay protection principle, To design this equipment's schematic diagram, and has carried on the performance introduction to this equipment's main hardware constitution, this paper has developed the data acquisition function software flow chart, it provided the basis for the development new coal mine distribution network relay protection installment.

INDOOR MONITORING APPLICATIONS USING FIXED AND MOBILE WIRELESS SENSORS

This paper proposes the idea of a wireless sensor network with applicability in monitoring systems. The goal of the project is to build a monitoring system capable of data gathering which can benefit from both characteristics of fixed and mobile nodes. To become flexible, the mobile node has a modular structure with four levels. The flexibility offered by the mobile nodes increases the performance of the entire data acquisition system. These act as autonomous devices that cooperatively monitor physical or environmental conditions. In order to implement the data acquisition and communication functions, the solution we agreed on has been to use the MTS400 sensor board. Mobile nodes communicate to a central node individual data and statistical indicators over a period. The proposed energy-aware architecture was tested and validated in an indoor experiment.

Subway Monitoring System Based on TM30 Georobot Research and Implementation

This article describes the basic principles of TM30 Georobot and GeoCOM port, completed the structural design of subway monitoring system database; Based on development environment with Visual Basic 6.0, Monitoring data to achieve automated collection of subway, as well as real-time analysis of monitoring data, Among them, the data were analyzed using different wavelet analysis model. Finally the automatic system is provided with monitoring data acquisition, real-time analysis and pre-alarm function, and provides report output.

Designing of Temperature and Thermal Displacement Measurement System in Machine Tools

This paper describes the multi-sensor of the data acquisition and signal analyzing based on the development of virtual instrument. It sets up a virtual instrumentation with the function of data acquisition and signal analysis, based on computer, temperature sensor, displacement sensor, PCI data acquisition card, and software of LabVIEW8.5 .The data acquisition, preprocessing, displaying, storage and data playback are integrated in this platform, forming an easy-to-use temperature and thermal error detection system.

Research on the Integrated Testing System for Machine Parameters

A virtual instrument which has the function of data acquisition, displaying and saving, time domain analysis, frequency domain analysis and so on is developed successfully. It combines the developed VI software Labview with the software Star for modal analysis，and makes program for controlling the data acquisition card，to generate a file with a fixed data format，and applies this file in Star System to complete the experiment of modal analysis. In using VI (virtual instrument) for modal analysis of mechanical structure the system realizes data collection、save、display、analysis and processing. From actual working we can make a conclusion that it has the advantage of low-cost, stability, high rate, efficiency and reliability.

Multifunction Evaluation System for Coal-Bed Gas Adsorption Isothermal and Pollution of Drilling Fluids

The multifunction evaluation system for coal-bed gas adsorption isothermal and pollution of drilling fluids is used for detecting the isothermal curves of adsorption and desorption needed in coal-bed gas exploration and development, at the same time, the system is used for studying the influences of external conditions applied on the coal bed such as reservoir temperature, moisture in the coal, the component of adsorbed gas, the drilling fluids and fracturing fluids on the coal beds, and pertaining to the technical area of the test instruments of coal-bed gas for drilling, exploration and development. Structure of the system is rational with advanced performance and high automation, its pressure and temperature are controlled by high precision sensors, and the microcomputer matched with the instrument has functions of rapid data acquisition, data process and chart plotting. This evaluation system can not only be used for detecting the isothermal curves of adsorption and desorption of single component gases, also can be used for detecting the isothermal curves of multi-component gases and deriving the diffusion coefficient of gas in the coal beds. Also the system can be used for evaluating the restoration value of the coal-bed desorption ability both before and after being polluted by drilling fluids and estimating the influence of drilling fluid and fracturing fluid, by which the shortcomings of unicity of adsorption and desorption test of coal bed gas, low automation level and low accuracy at present are eliminated, and it has the characteristics of clear flow-sheet, easy operation, modules of experiment software and standardization of experiment data.

The Design of LDF Data Acquisition System Based on LabVIEW

In the formation of liquid drops, different kinds of liquids may have different outer profiles; the change of volume and shape in the process of drop formation can indirectly reflect liquid's physical and chemical properties, such as surface tension and viscosity, etc. Real-time detection the size of drops in the forming process is on the basis of drop analysis technique. Previous researchers have studied that optic fiber and capacitance drop sensor fusion technology can indirectly gain drop's form and the volume. This article is based on the optic fiber and capacitance drop sensor theory, designing the system based on the LabVIEW software to realize the LDF (Liquid Drop Fingerprint) data acquisition function. The experiment results show that the system can well realize the acquisition, compared with the traditional VC programming technology, this data acquisition system is high efficiency.

Design of Humidity Monitoring System Based on Virtual Instrument

In order to overcome disadvantages of the single-chip based humidity test system, a humidity monitoring system was designed using virtual instrument technology. The system consists of data acquisition module, signal process and display module, super-threshold alarm module, data storage and historical data recall module, and help module. A combination of humidity and temperature sensor was adopted to obtain environmental humidity and temperature information, and a PCI bus based data acquisition card was used to achieve the function of data acquisition, the purpose of detecting temperature is to compensate the influence of temperature changing on humidity data. The software was developed by LabVIEW. The block diagram of the software was showed, methods of implementation in signal acquisition, scale conversion, temperature compensation, noise filtering, super-threshold alarm, data storage, recall of historical data, and display of humidity monitoring signal were also expatiated. By this system, environmental humidity change information can be real-time obtained, and can be displayed on monitoring screen. At the same time, the system has abilities of data storage, historical data recall, and super-threshold alarm. The whole system is compact; the interface is friendly, and easy to operate.

Fault injection as a test method for an FPGA in charge of data readout for a large tracking detector

This paper describes how fault injection has been implemented as a test method for an FPGA in an existing hardware configuration setup. As this FPGA is in charge of data readout for a large tracking detector, the reliability of this FPGA is of high importance. Due to the complexity of the readout electronics, irradiation testing is technically difficult at this stage of the system commissioning. The work presented in this paper is therefore motivated by introducing fault injection as an alternative method to characterize failures caused by SEUs. It is a method to study the effect that a configuration upset may have on the operation of the FPGA. The target platform consists of two independent modules for data acquisition and detector control functionality. Fault injection to test the response of the data acquisition module is made possible by implementing the solution as part of the detector control functionality. Correct implementation is validated by a simple shift register design. Our results demonstrate that fault injection can assist in measuring the effect of an implemented mitigation technique in the final design of the FPGA.

Design and verification of a bit error rate tester in Altera FPGA for optical link developments

This paper presents a custom bit error rate (BER) tester implementation in an Altera Stratix II GX signal integrity development kit. This BER tester deploys a parallel to serial pseudo random bit sequence (PRBS) generator, a bit and link status error detector and an error logging FIFO. The auto-correlation pattern enables receiver synchronization without specifying protocol at the physical layer. The error logging FIFO records both bit error data and link operation events. The tester's BER and data acquisition functions are utilized in a proton test of a 5 Gbps serializer. Experimental and data analysis results are discussed.

Development of a MicroTCA Carrier Hub for CMS at HL-LHC

We are developing a Micro TCA Carrier Hub card which provides timing, control and data acquisition functions in a Micro TCA crate for HL-LHC readout electronics. This module may be mounted in the primary or redundant MCH slot in a Micro TCA crate, and distributes low-jitter LHC RF clock and encoded fast timing signals to up to 12 AMC modules. In addition, it receives buffer status signals and DAQ data at up to 600 MBytes/sec from each AMC. The prototype module is built on a commercial MCH base board with a custom mezzanine board stack. The latest Xilinx® Virtex®-6 FPGA are used to provide a clear upgrade path. Prototype modules have been developed for a CMS HCAL test beam in summer 2010. We describe the specifications of the module, its application in a Micro TCA system beyond CMS HCAL, and our experience in commissioning the module for the test beam.

Leveler Intelligent Model and Knowledge Base for Plate Steel Based on Multi-Fieldbus

The control system of the third hydraulic reversible 11 rolls leveler adopts advanced techniques such as automatic setting, automatic tracking and straightening, Leveling intelligent model and knowledge base. Leveling Intelligent Model and knowledge base is the core of the whole control system, which including Leveling Intelligent Model and plate knowledge base. The system has successful application in new strength leveler developed by Taiyuan University of Science and Technology and the Taiyuan Heavy Industry Co., Ltd, which is of high automatic and efficiency. The productions qualities are impressively improved. This plate leveler uses Oracle 10G database system and HP 380 Server clusters to realize the management function of technical data acquisition and analysis. It is able to complete the real-time data acquisition, data analysis, model calculation and self –learning function.

The Supervisory Control and Data Acquisition System for Plate Leveler Based on Multi-Fieldbus

To improve the quality of the steel plate, The No.2 Roll Mill of Wuyang Iron and Steel Company has adopted the hydraulic reversible 11 rolls leveler developed by Taiyuan University of Science and Technology and the Taiyuan Heavy Industry Co., Ltd. The machine uses a number of advanced technologies and new equipments. For example, this plate leveler uses the Supervisory Control and Data Acquisition system, including the main operator station, the monitoring station, engineer station, etc.It also adopts Oracle 10G database system and HP 380 Server clusters to realize the management function of technical data acquisition and analysis. It is able to complete the real-time data acquisition, data analysis, model calculation and self –learning function.

The design of a brain sensory organ monitoring thinking activity inside the knowledge system: the brain system

In this article, by adopting brain functions, a brain-inspired system which has a hierarchical structure is designed. In particular, a brain sensory organ is defined as the 6th sense monitoring the brain’s activities of sensing input data, monitoring thinking activities, and maintaining the memory. This brain-inspired system with a brain sensory organ has functions of data acquisition, memory storing and maintenance, and memory recall processes. Emotion and the concept of emotional switching are specially designed and specified. In addition, a thought chain reaction extraction process by emotional switching, and a dynamic thinking associative map (DTAM) in the brain-inspired system were proposed and tested by sample data in the virtual memory.

Development of a data acquisition sub-system using DAQ-Middleware

A prototype of a data acquisition (DAQ) sub-system has been developed at the Material and Life Science Facility (MLF), the Japan Proton Accelerator Research Complex (J-PARC). This prototype was built using software components called DAQ-Components in DAQ-Middleware. The DAQ sub-system attained scalability and flexibility, resulting from the nature of the DAQ-Components, their location transparency. The DAQ sub-system can be easily extended to keep in step with the increase in the beam intensity of J-PARC. Results of beam tests using the DAQ-Components in September 2007 certified the required fundamental DAQ functions of DAQ-Middleware.

MS/MS spectral tag‐based annotation of non‐targeted profile of plant secondary metabolites

The MS/MS spectral tag (MS2T) library-based peak annotation procedure was developed for informative non-targeted metabolic profiling analysis using LC-MS. An MS2T library of Arabidopsis metabolites was created from a set of MS/MS spectra acquired using the automatic data acquisition function of the mass spectrometer. By using this library, we obtained structural information for the detected peaks in the metabolic profile data without performing additional MS/MS analysis; this was achieved by searching for the corresponding MS2T accession in the library. In the case of metabolic profile data for Arabidopsis tissues containing more than 1000 peaks, approximately 50% of the peaks were tagged by MS2Ts, and 90 peaks were identified or tentatively annotated with metabolite information by searching the metabolite databases and manually interpreting the MS2Ts. A comparison of metabolic profiles among the Arabidopsis tissues revealed that many unknown metabolites accumulated in a tissue-specific manner, some of which were deduced to be unusual Arabidopsis metabolites based on the MS2T data. Candidate genes responsible for these biosyntheses could be predicted by projecting the results to the transcriptome data. The method was also used for metabolic phenotyping of a subset of Ds transposon-inserted lines of Arabidopsis, resulting in clarification of the functions of reported genes involved in glycosylation of flavonoids. Thus, non-targeted metabolic profiling analysis using MS2T annotation methods could prove to be useful for investigating novel functions of secondary metabolites in plants.

Web services interface to EPICS channel access

Web services is used in Experimental Physics and Industrial Control System (EPICS). Combined with EPICS Channel Access protocol, Web services' high usability, platform independence and language independence can be used to design a fully transparent and uniform software interface layer, which helps us complete channel data acquisition, modification and monitoring functions. This software interface layer, a cross-platform of cross-language, has good interoperability and reusability.

Looking below the Moon's surface with radar

Giovanni, the Goddard Earth Sciences Data and Information Services Center (GES DISC) Interactive Online Visualization and Analysis Infrastructure, has provided researchers with advanced capabilities to perform data exploration and analysis with observational data from NASA Earth observation satellites. In the past 5–10 years, examining geophysical events and processes with remote‐sensing data required a multistep process of data discovery, data acquisition, data management, and ultimately data analysis. Giovanni accelerates this process by enabling basic visualization and analysis directly on the World Wide Web. In the last two years, Giovanni has added new data acquisition functions and expanded analysis options to increase its usefulness to the Earth science research community.

Online analysis enhances use of NASA Earth science data

Giovanni, the Goddard Earth Sciences Data and Information Services Center (GES DISC) Interactive Online Visualization and Analysis Infrastructure, has provided researchers with advanced capabilities to perform data exploration and analysis with observational data from NASA Earth observation satellites. In the past 5–10 years, examining geophysical events and processes with remote‐sensing data required a multistep process of data discovery, data acquisition, data management, and ultimately data analysis. Giovanni accelerates this process by enabling basic visualization and analysis directly on the World Wide Web. In the last two years, Giovanni has added new data acquisition functions and expanded analysis options to increase its usefulness to the Earth science research community.

The ROD crate DAQ software framework of the ATLAS data acquisition system

In the ATLAS experiment at the LHC, the ROD Crate DAQ provides a complete software framework to implement data acquisition functionality at the boundary between the detector specific electronics and the common part of the data acquisition system. Based on a plugin mechanism, it allows selecting and using common services (like data output and data monitoring channels) and developing software to control and acquire data from detector specific modules providing the infrastructure for control, monitoring and calibration. Including also event building functionality, the ROD Crate DAQ is intended to be the main data acquisition tool for the first phase of detector commissioning. This paper presents the design, functionality and performance of the ROD Crate DAQ and its usage in the ATLAS data acquisition system and during detector tests.