MSP430 data logger: An implementation for stress measurement in concrete structures
01 Jan 2016-pp 1-4
TL;DR: The objective of this paper is to design and implement a low cost embedded data logging system to sense the excess pressure and strain on a concrete fiber reinforced beam with the help of low cost high performance MSP430 and optical fiber sensor.
Abstract: An extensive and varied usage of optical fibers is found widely in all the engineering sectors. This paper aims at providing a feasible solution for measuring the stress applied on the reinforced concrete slab using an optical fiber. An MSP430 board is used as the signal conditioning circuit to calibrate the sensed pressure and the same also employs a clever strategy to log the data in standalone operation. The objective of this paper is to design and implement a low cost embedded data logging system to sense the excess pressure and strain on a concrete fiber reinforced beam with the help of low cost high performance MSP430 and optical fiber sensor.
TL;DR: A comprehensive review of the most common MNDT techniques for material assessment is conducted based on a detailed literature survey and can assist in using the MNDt methods in concrete structures, structural health monitoring, and enhancement of microwave-based techniques.
TL;DR: In this paper, the authors carried out a quantitative approach in a questionnaire distribution across a given number of data collection respondents and has shown that financial crime and its success contribute directly to the financial performance of banks.
Abstract: A business associate in an organization may represent fraud as a series of disappointing business practices to help individuals. Therefore, it is an act to mask the other by covering real facts and presenting fake information and statements. Online manipulation is the biggest field that has been opened up. Online fraud has been more widespread as technical innovation coupled with internet penetration and resulting improvements have arisen. In terms of internet sales and valuation, e-commerce development is expressed. During the eight-year duration from 2008 to 2014, the overall volume of the trade rose from $268 billion to $ 1.5 trillion. The study carried out the quantitative approach in a questionnaire distribution across a given number of data collection respondents and has shown that financial crime and its success contribute directly. The findings indicated that the greater the fraud, the poorer the bank's performance, the more the online fraud appears to impact the financial performance of banks adversely.
TL;DR: In this article, the authors present a novel design of different layers of software integrated into a datalogger: reception, error control, and storage logic for the different glider operations.
Abstract: Submarine gliders are specialized systems used in applications such as environmental monitoring of marine fauna, in the oil industry, among others. The glider launch and capture is a costly process that requires substantial technological and human resources, so the orderly and error-free storage of data is of fundamental importance due to the subsequent analysis. The amount of information being obtained from the seabed is increasing, this leads to the need to develop robust and low-cost ad-hocsystems for this type of application. The challenge is the integration of the different software layers in the storage system because the monitored variables must be ordered according to different glider operations such as calibration data update and navigation. Additionally, to avoid data corruption in the memory chip, error control coding must be used. The goal of this paper is to present a novel design of different layers of software integrated into a datalogger: reception, error control, and storage logic for the different glider operations. The design of the datalogger is based on a NAND flash memory chip and an MSP430 microcontroller. To correct bit-flipping errors, a BCH code that corrects 4 errors for every 255 bits is implemented into the microcontroller. The design and evaluation are performed for different glider operations, and for different lengths and correction capabilities of the BCH module. A test to calculate the storage time has been carried out. This test shows that in the case of 256 bytes per sample, at 30 samples per minute, and 1 GB of storage capacity, it is possible to collect data from the glider sensors for 84 days. The results obtained show that our device is a useful option for storing underwater sensor data due to its real-time storage, power consumption, small size, easy integration, and its reliability, where the bit error rate BER is of 2.4 ×10−11.
TL;DR: In this article, the authors examined the influence of organizational participation and encouragement in banks' work results and found a substantial level below 5% which indicates that the study variables are closely linked.
Abstract: All companies aspire to compete against their rivals, retain a strategic edge in the industry, gain the largest market share and be inspired to bring out their utmost to achieve their desired goals at work. Few businesses think they will gain growth and wealth by important assets for their workers. Unfortunately, most companies appear to exploit the dismissal of their workers and talented applicants. Recognizing the critical position of workers appears to have a major effect on operational performance as most companies aim to maintain staff by empowering and enhancing the working standards of their employees. Therefore, it is necessary to enforce certain techniques to retain high quality and ensure performance and efficiency. The research examined the influence of organizational participation and encouragement in banks' work results. A study of 100 participants was tested, and findings were evaluated using the chi-square analysis. The findings revealed a substantial level below 5% which indicates that the study variables are closely linked. The quantitative approach and qualitative framework have been used to analyze their perception of the effects of job retention on the success of workers. Approach a single case study for various branches by implementing a similar case study and addressing a larger number of samples. This allows the researcher to remove the survey challenge and hold evidence from a larger community with a deeper comprehension of the idea of encouragement and how it influences workers' output.
TL;DR: This review article is devoted to presenting a summary of the basic principles of various optical fiber sensors, innovation in sensing and computational methodologies, development of novel optical Fiber sensors, and the practical application status of the optical fiber sensing technology in structural health monitoring (SHM) of civil infrastructure.
Abstract: In the last two decades, a significant number of innovative sensing systems based on optical fiber sensors have been exploited in the engineering community due to their inherent distinctive advantages such as small size, light weight, immunity to electromagnetic interference (EMI) and corrosion, and embedding capability. A lot of optical fiber sensor-based monitoring systems have been developed for continuous measurement and real-time assessment of diversified engineering structures such as bridges, buildings, tunnels, pipelines, wind turbines, railway infrastructure, and geotechnical structures. The purpose of this review article is devoted to presenting a summary of the basic principles of various optical fiber sensors, innovation in sensing and computational methodologies, development of novel optical fiber sensors, and the practical application status of the optical fiber sensing technology in structural health monitoring (SHM) of civil infrastructure.
TL;DR: In this paper, a brief discussion of the principles of the fiber-optic technology for concrete structure assessment and its potential use in future engineering applications is given. But, the authors do not consider the use of optical fiber sensors as non-destructive structural health monitoring devices for infrastructure elements.
Abstract: Many extensive researches in the area of utilising fibre-reinforced plastic (FRP) materials for retrofitting and repairing existing damaged concrete structures have increasingly been made in recent years. The FRP can improve the overall flexural and compressive properties of the structures by using externally bonded FRP sheets. The conventional non-destructive inspection technologies such as strain gauge, and acoustic emission become inappropriate for structures after being repaired by externally bonded FRP materials. Optical fibre sensors have attracted considerable interest recently as non-destructive structural health monitoring devices for infrastructure elements. This paper gives a brief discussion of the principles of the fibre-optic technology for concrete structure assessment and its potential use in future engineering applications. Due to the increasing use of the FRP in most civil infrastructure elements, the conceptual idea of ‘smart composites’, which can be used as reinforcements as well as r...
TL;DR: A modified system construction from vehicle surveillance technology for OBD data report in real time is presented, which integrates the developing technology for both OBD and intelligent-transportation-system applications.
Abstract: Onboard-diagnostic (OBD) system is developed to detect engine operation conditions for air-pollution monitoring. The diagnostic trouble code from vehicle microprocessor is generated resulting from a system error or malfunction. Based on a practical demand, this paper presents a modified system construction from vehicle surveillance technology for OBD data report in real time. A circuit system is designed and fabricated to convert OBD protocol into RS-232 protocol for data transmission via general-packet-radio-service mobile communication. The proposed system integrates the developing technology for both OBD and intelligent-transportation-system applications. In this paper, hardware and software in both design and implementation are discussed and verified by road tests
TL;DR: A special data compression algorithm based on relative encoding is presented to optimize memory utilization and reduce data transfer time for battery-driven ambulatory applications.
Abstract: A microcontroller-based data logger has been designed, prototyped, and field-tested for recording galvanic skin response data and relaying them to a computer for physiological analysis. Focusing on system design issues concerning battery-driven ambulatory applications, this paper presents a special data compression algorithm based on relative encoding to optimize memory utilization and reduce data transfer time. Data flow coordination and timing control are enabled by a PIC microcontroller. A handheld prototype measuring 180/spl times/90/spl times/30 mm was built and tested for ease of use, safety, and reliability.
••13 Apr 2009
TL;DR: Evaluation of FlashLogger with several real world data sets shows orders of magnitude energy savings for both logging data and retrieving data within a time range.
Abstract: We present FlashLogger, an energy-efficient sensor data logging system that uses lazy amnesic compression in a flash-efficient manner. FlashLogger incorporates a suite of compression algorithms suitable for progressively compressing time series scalar, audio, and image data. It uses a novel data structure for efficiently organizing and querying compressed data on flash memory. All our methods are designed for the limited memory and processing capabilities typical of low power sensor nodes, and are prototyped on Tmote Sky platform running TinyOS. Evaluation of FlashLogger with several real world data sets shows orders of magnitude energy savings for both logging data and retrieving data within a time range.
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