English

Transient electromagnetic method (TEM) is regarded as an everlasting issue for geological exploration. It is widely used in many research fields, such as mineral exploration, hydrogeology survey, engineering exploration and unexploded ordnance detection. The traditional measurement systems are often based on ARM、DSP or FPGA, which have not real-time display, data preprocessing and data playback functions. In order to overcome the defects, a real-time data acquisition and preprocessing system based on LabVIEW virtual instrument development platform is proposed in the paper, moreover, a calibration model is established for TEM system based on a conductivity loop. The test results demonstrated that the system can complete real-time data acquisition and system calibration. For Transmit-Loop-Receive (TLR) response, the correlation coefficient between the measured results and the calculated results is 0.987. The measured results are basically consistent with the calculated results. Through the late inversion process for TLR, the signal of underground conductor was obtained. In the complex test environment, abnormal values usually exist in the measured data. In order to solve this problem, the judgment and revision algorithm of abnormal values is proposed in the paper. The test results proved that the proposed algorithm can effectively eliminate serious disturbance signals from the measured transient electromagnetic data.

Versatile controllers for accurate, fast, and real-time synchronized acquisition of large-scale data are useful in many areas of science, engineering, and technology. Here, we describe the development of a controller software based on a technique called queued state machine for controlling the data acquisition (DAQ) hardware, continuously acquiring a large amount of data synchronized across a large number of channels (>400) at a fast rate (up to 20 kHz/channel) in real time, and interfacing with applications for real-time data analysis and display of electrophysiological data. This DAQ controller was developed specifically for a 384-channel pediatric whole-head magnetoencephalography (MEG) system, but its architecture is useful for wide applications. This controller running in a LabVIEW environment interfaces with microprocessors in the MEG sensor electronics to control their real-time operation. It also interfaces with a real-time MEG analysis software via transmission control protocol/internet protocol, to control the synchronous acquisition and transfer of the data in real time from >400 channels to acquisition and analysis workstations. The successful implementation of this controller for an MEG system with a large number of channels demonstrates the feasibility of employing the present architecture in several other applications.

A versatile time-resolved multi-channel averager has been built using a microprocessor architecture to provide intelligent data acquisition capability. The averager described provides 1 mu s time resolution, multiple channel widths, automatic background subtraction, and multiple operating modes. A high speed cassette tape system is provided for transporting acquired data to a minicomputer for further analysis, and an automatically scaled CRT display is provided for monitoring data acquisition in real time. Illustrative examples of the use of the instrument for studying pulsed afterglow plasmas are discussed.

Methacrylic ester copolymers were synthesized in various compositions with the aim of studying the kinetics of the copolymerization reaction. Nuclear magnetic resonance was used not only to investigate the kinetic behavior but also to monitor the reaction course. Copolymers were synthesized in the NMR tube allowing data acquisition in real time. Reactivity ratios for methyl methacrylate and octadecyl methacrylate were obtained. Copyright © 2004 Society of Chemical Industry

Solidification and cooling of a continuously cast steel slab and the heating of the mould is a very complicated problem of transient heat and mass transfer. This original three-dimensional (3D) numerical model is capable of simulating the temperature field of a caster. The numerical computation has to take place simultaneously with the data acquisition—not only to confront it with the actual numerical model, but also to make it more accurate throughout the process. The utilization of the numerical model of solidification and cooling plays an indispensable role in practice. An important step in this analysis is to determine the necessary quantities in the course of concasting. The software enables data acquisition in real time, which is necessary for optimization. This is ensured by the correct process procedure: real process → input data → numerical analysis → optimization → correction of process. This procedure is necessary for optimization (i.e. maximization of the quality of the process)—especially when reacting to specific needs and conditions in the operation.

During an accidental release of tritium, mechanisms of hydrogen transfer from air to man are very numerous, dependent on multiple climate, physiological and biological parameters, and the kinetic is highly variable from one environmental compartment to another. To evaluate the impact of an acute tritium release requires either an overall assessment of the state of the environment during the release and the following hours from a number of restricted data, or the establishment of a significant data bank, a complex model and a system of data acquisition in real time whose potential for daily purposes is very hypothetical. To facilitate the first approach, this paper discusses the key elements of the mechanisms to guide the choice of parameters for a rapid assessment of the situation, and to clarify the types of measurements to carry out and their interpretation.

Design of on-line embedded web server is a challenging part of many embedded and real time data acquisition and control system applications. The World Wide Web is a global system of interconnected computer networks that use the standard Internet Protocol Suite (TCP/IP) to serve billion of users worldwide and allows the user to interface many real time embedded applications like data acquisition, Industrial automations and safety measures etc,. This paper approached towards the design and development of on-line Interactive Data Acquisition and Control System (IDACS) using ARM based embedded web server. It can be a network, intelligent and digital distributed control system. Single chip IDACS method improves the processing capability of a system and overcomes the problem of poor real time and reliability. This system uses ARM9 Processor portability with Real Time Linux operating system (RTLinux RTOS) it makes the system more real time and handling various processes based on multi tasking and reliable scheduling mechanisms. Web server application is ported into an ARM processor using embedded `C' language. Web pages are written by Hyper text markup language (HTML); it is beneficial for real time IDACS, Mission critical applications, ATM networks and more.

In order to acquire high speed real-time astronomical image data and recognize the object planets, a kind of system based on FPGA and PCI bus is presented. In this system, logic design including Camera Link data interface, digital image data capture and data transmission to PC through PCI bus is completed in FPGA (Xilinx Virtex 4); and the final results can be verified in PC. The system can collect and process the digital image output from high speed CMOS camera which peak data rate is 660 MB/S, average rate is 200 MB/s, and frame ratio is 2500 fps.

The paper presents an architecture of automatic, intelligent and self-sustaining Attendance/Human Resources Automation system, which can be deployed anywhere including schools, colleges, offices etc. It is composed of four layers namely Real Time Identification Layer (R.T.I. layer), Real Time Data Communication Layer (R.T.D.C Layer), Human Computer Interaction Layer (H.C.I Layer), Database Management and Processing Layer (D.M.P Layer). The automation system is cost-effective and easily maintainable. It combines RFID (based on IEEE 802.15.4 protocol, 2.4 GHz ISM band), GSM and wireless Zigbee (802.15.4) technologies along with MATLAB and Excel. This paper tries to establish a general architecture and a basic overview of how automation of human management in a professional organization can be done. The proposed system's major advantage over the existing systems is wireless communication, its Real Time Data Acquisition and Processing and MATLAB software-hardware interface. The system contains an integrated Real Time Clock chip interfaced to microcontroller from which time of attendance is taken.

The work presents real-time data acquisition and monitoring of solar photovoltaic modules using Lab-VIEW. A graphical program has been developed to obtain efficiency and fill factor of solar PV module. Afront panel is designed, displaying all the acquired data such as; voltage, current, solar radiation, ambienttemperature, humidity, Current vs. Voltage and Power vs. Voltage graphs which make it very useful tounderstand the performance behavior of the solar photovoltaic module in real time. Data acquisition andmonitoring for solar panels of different ratings are carried out. This tool is an effective platform for experimentalstudy in the laboratory of different solar photovoltaic modules with access to real-time data.

Thanks to technological opportunities on data acquisition, broadcast and treatment in real time, new logistics opportunities are emerging quickly. These opportunities are about to change deeply the way we transport parcels through hyper-connected and open networks. In order to monitor the logistics flows on these routes and hubs, new ways of thinking are developed, like the Physical Internet paradigm. Because the current transport management systems should not be able to deal with this complex and open environment, we have to design new ways of monitoring parcels on the network. We describe here the \emph{hitchhiker parcel model}, a new paradigm allowing each parcels to take advantage of the local opportunities and beware the risks. The targeted organization described and the underlying questions have to be evaluated through performance indicators. The first experiments presented here aims to give first insights about the model evaluation and its relevance.

With the improvement of the quality of national life, the physical health problem is gradually placed in the same important position as the basic problems such as education, people’s livelihood, and safety. Improving the physical quality of college students and promoting the healthy growth of students are major events in the future of the country and the nation. Therefore, each school will conduct a physical test every year. The use of wireless sensors for data acquisition has played an important role in various fields. Therefore, for the physical health management of college students, this paper proposes to design a sensor system to collect physical measurement data. The measured data is collected through the sensor, such as the XGZP6847 gas pressure sensor to collect students’ vital capacity. Then, the sensor node and the coordinator are connected to the PC through the serial port, respectively, and the CC2530 chip transmits the data to the coordinator through the ZigBee module, establishes communication with the PC through the 2.4G wireless communication module, adopts the strategy of the thread pool to save resources, improves the response speed, and obtains students’ body test data in real time. Taking the data acquisition and transmission of vital capacity and body weight subjects as an example, the system realizes the accurate transmission of the collected test data from the sensor to the terminal, greatly improves the accuracy and real‐time body test data acquisition, and reduces the probability of errors in the recording process, and the collected data can be used directly or for secondary development, and it promotes the establishment of college students’ physical health management system.

Data acquisition and real-time bolometer tomography using LabVIEW RT

Infant health monitoring is crucial for early detection of potential health issues. Many existing solutions, while effective, are often costly and designed for clinical settings, making them less accessible for home use. Parents require an affordable, easy-to-use solution to monitor their infant’s vital signs, such as body temperature and pulse, in real time. The rapid development of wireless communication technologies and microcontroller systems like Programmable System-on-Chip (PSoC) provides a new opportunity to create effective, low-power, and cost-efficient health monitoring systems tailored for home use. This study focuses on developing a remote infant health monitoring system that integrates wireless data transmission to enable real-time monitoring by parents. The proposed system consists of three modules: On-Child-Device, Child-Device, and Parent-Device. The On-Child-Device, worn by the infant, measures vital signs using a thermistor and an infrared pulse sensor. The data is processed by a PSoC microcontroller and transmitted wirelessly to the Child-Device, which then forwards the information to the Parent-Device for display. The Parent-Device provides a user interface where parents can monitor real-time data, including alerts for abnormal readings. The system’s hardware is built using PSoC technology, offering flexibility in integrating sensors and communication protocols. Software development was carried out using the PSoC Designer environment, which allows for real-time data acquisition, error checking, and wireless communication management. Initial testing of the system demonstrated reliable performance in measuring and transmitting vital signs. The wireless communication between the modules showed minimal latency, with real-time data accurately displayed on the Parent-Device. The use of PSoC technology enabled efficient power consumption, allowing the system to operate continuously for extended periods without frequent battery replacements. The system's modular design also proved adaptable, allowing for potential integration of addition-al sensors in the future. Feedback from users highlighted the intuitive interface of the Parent-Device, making it accessible for non-technical users. However, challenges related to signal interference in certain environments were noted, suggesting the need for further optimization of the communication protocol. The developed remote infant health monitoring system offers a cost-effective, energy-efficient solution for home use. By utilizing PSoC technology, the system provides reliable real-time monitoring of vital signs, ensuring that parents can quickly respond to any health abnormalities. The wireless transmission and user-friendly interface make the system practical for everyday use, filling a significant gap in current infant health monitoring technologies. Future improvements will focus on enhancing the communication robustness and integrating additional health metrics to provide a more comprehensive monitoring solution. Keywords : Telemetric data, Parental device, Health monitoring, Temperature sensor, Pulse measurement, Programmable System on Chip

Oceanographic and water quality investigations often require an integrated approach to sampling. This integrated sampling couples intensive field measurements from a vessel with continuous measurements at selected locations. Real time collection and analysis of continuous data enables researchers to adjust field sampling locations during cruises to fit the oceanographic conditions, thereby obtaining more meaningful data in a cost- effective manner. Real time data acquisition and processing provides a viable, cost- effective solution to the increasing demand for continuous oceanographic and water quality data; allows for verification of proper system operation; and reduces data processing and report preparation time and cost. Recent developments have made real time data collection via radio telemetry inexpensive and cost effective. The development of such a system is presented in this paper.