Elephant Intrusion Detection and Repulsion System using Matlab

Elephant intrusion across the railway track leads to Human-Elephant conflict, collisionof trains, elephant death and injuries. Railway tracks pass through wild life habitats in several Indian states. In India, due to railway cross lines,the accidents that resulted in the death of249 elephants during 1987-2018.The surveillance and monitoring the elephants in the railway line in the forest is very difficult. The speed of the train in India among forest areas is around 50-55km/h during day and 35km/h at night, the engine driver can’t stop the train once the elephant is seen. So, we develop a system to detect the elephant intrusion at a certain distance by using sensors and image processing using MATLAB, creates an alert to engine driver and forest officer of the region and repel the elephant from the railway line. Hence we are creating a prototype model for real time interaction of elephant intrusion across railway tracks

Design and fabrication of automatic classroom cleaning robot

Mechanization is one of the moving subjects encompassing the assembling business in the 21st century. In addition to the fact that it helps producers stay aware of developing worldwide interest, it sets out new positions open doors just as help makers progress into the 21st century. This project requires the Arduino Uno, engine driver, and Bluetooth module. The Arduino Uno is an open-source prototyping platform with simple hardware and programming. The ATmega328 microcontroller is used in the Arduino Uno. Advanced mechanics has become increasingly important in our daily lives and the design sector, and it plays an essential role in the advancement of new technology. Arduino has replaced the traditional micro regulator, and IR sensors have been replaced by a Bluetooth module in this uncomplicated and primary type of controlling the vehicle. Any android or iOS cell can be used as the faraway. With the headway of innovation, robots are standing out enough to be noticed by scientists to make the life of humanity agreeable. Here we examine the plan of the model of Automatic Classroom cleaning Robot. The robot works self-inside a restricted space (for this situation, study hall) and require human mediation to move it from one class to the next. By utilizing fog-making measures, it cleans the encompassing. The robot is intended to supplant human endeavors with mechanization and can be a revolutionary innovation whenever made reasonable.

Implementation of DC Motor Control Experimental Setup Platform for Intelligent System Applications

Nowadays, DC engines have been widely used in daily life. Thanks to its popularity, students are expected to apply their theoretical control algorithms in a DC engine control as an application. Although these necessities and requirements, there is no presented experimental setup for both industrial and educational purposes. In this study, an experimental setup is developed in order to control two distinct DC engines via an embedded microcontroller board and engine driver circuits for testing intelligent system based control algorithms in PC. PID control algorithm is tested via the implemented setup.

Occupational disorders of diurnal biorhythms of locomotive crew workers

Introduction. Work of locomotive crew members (engine drivers and engine driver assistants) in railway transport is associated with exposure to complex of occupational hazards including psychoemotional stress and shiftwork (with night shifts) along with noise and vibration.Objective. To study influence of shift work (with irregular alternation of day and night shifts) on biorhythms disturbances in locomotive crew workers.Materials and methods. Polls, simulators of occupational activities with training complex «Cabin of engine driver EP1M», daily monitoring of blood pressure, statistic data processing by SPSS–20 software.Results. Findings are that 953 locomotive crew workers (94%) experienced sensations of temporary disorientation, slight dizziness, sleepiness, interpreted as monotony and sensor deprivation. 61% of the examinees demonstrated frustration signs, in 30% of the cases there were certain manifestations of mental ill-being — irritability, fatigue, weariness, absent-mindedness, anxiety; 27.2% of the testees experiences various sleep disorders; 13.8% of the workers complained of «light sleep», 2% of those — restless sleep, 0.6% — sleeplessness. In occupationally related biorhythms disturbance, the body undergoes occupational adaptation, with partial transformation for atypical schedule of sleep and wakefulness.Results. To preserve health, efforts should be aimed at adaptation to shifted occupational activities with safe adaptogenic medications, low-caloric diet for individuals working at irregular shifts, create conditions for adequate physical activity of the workers between shifts. Necessities also are individual norms for blood pressure parameters in engine drivers with night shiftwork, specification of antihypertensive treatment for patients with irregular shifted work.

Significant reliability improvements in reciprocating gas compressor packages at Arrow Energy

Arrow Energy operates a fleet of four-stage reciprocating compressors in the Surat Basin, boosting low-pressure coal-seam gas (at 60 kPag) to transmission pipeline pressure (in excess of 9000 kPag). Historically, the compressors and the gas engine drivers exhibited persistent problems associated with high vibrations, inadequate engine and process gas cooling, poor compressor valve reliability and premature engine component failures. Hot Queensland summer conditions further exacerbated these problems, which resulted in frequent unit trips during hot periods when gas and electricity prices demanded consistent gas production at nameplate capacity. Since 2014, Arrow Energy has carried out systematic analytical studies to establish the compressor package component limitations and develop technical solutions to address these. Stub shaft-driven air coolers, compressor valves, gas engine heads and valves, compressor frame and crosshead mounting arrangements were some of the key components studied in detail. Utilising systematically designed field tests with laboratory calibrated test instruments, scale model laboratory tests, advanced computer simulations, data analytics and new technology trials, several key design modifications were implemented. The outcome of these design changes has enabled Arrow Energy to achieve a step-change in reliability for the better, with each reciprocating compression package (including gas engine driver) operating in excess of 98% reliability. The implemented changes were executed at minimal cost and resulted in significant reduction in maintenance costs. The increased reliability and consistent production during the peak summer hours easily justified the modifications made to the packages. This paper describes the technical work undertaken, changes implemented and their outcomes.

An Observer Based Framework to Improve Fidelity in Internet-Distributed Hardware-in-the-Loop Simulations

Co-simulating distributed hardware-in-the-loop systems in real time over the Internet entails communication delays that can lead to significant loss of fidelity and even instability in the system. To address this challenge, this paper proposes an observer based framework that, unlike previously reported efforts, does not require the observer to know and model the observed system dynamics. This is achieved by deriving the closed-loop dynamics of the observer based on a sliding surface. Even though the resulting error system does not necessarily stay on a sliding surface, its asymptotic convergence to zero is still guaranteed. First, this idea is developed for a generic networked system simulation framework and its stability is established. Then, it is applied to a mass-spring-damper system to illustrate the mechanics of the approach on a simple, linear example and demonstrate that the approach can stabilize the system that is otherwise unstable due to delay. Finally, a vehicle-engine-driver system simulation is considered to evaluate the performance of the approach on a more realistic, nonlinear example. An improvement of up to 33% is observed in the fidelity of the simulation. The conclusion is that the approach holds a significant potential to alleviate the negative impact of delay and improve the stability and fidelity of networked system simulations. Its benefits become more pronounced as the delay increases.

Ergo-assessment of Locomotive Drivers’ Traffic Environment

While operating a locomotive or a railcar the engine drivers are exposed to the action of several simultaneous factors of disturbances from the traffic environment, and therefore their reliability and safety are reduced. The human-determined physical, sensor and cognitive factors are not only the attributes of the engine driver, but also include influences from the traffic environment, due to the interaction in the “engine driver – traffic means – traffic environment” system. Traffic environment is defined in such a way that, among other things, it includes also the working environment of the drivers cab and the recent traffic situation. The action of factors of temporary subjective disturbances and/or permanent psychological and physiological changes, depend not only on the individual endurance of engine drivers, but also significantly on the type of locomotive or railcar operated by the engine driver, as well as on the fact whether the traffic is intended for the transport of passengers and/or freight, or a shunting engine is involved. The ergo-assessment based on a survey of 50 respondents yielded the final results that are almost identical to the results of ergo-assessment obtained during the formation of the methodology of cognitive ergo-assessment on a sample of 31 respondents. In both cases the surveyed respondents were engine drivers who in practice operate all types of locomotives and railcars, who have acquired engine driver secondary school qualifications and have passed vocational testing for all types of locomotives and railcars. Systemic ergo-assessment of the intensity of the overall psychophysical effort is possible by introducing the index of importance which is used in case of all engine drivers to integrally and equally recognise also the influence of the percentage of occurrence of a certain factor of subjective disturbance and influence of the average assessment of the subjective disturbance intensity, thus allowing an insight into the structure of a system of simultaneous ergo-assessment factors and isolation of ten dominant ergo-assessment factors. Partial cognitive ergo-assessment and inter-comparison of the intensity of subjective disturbances have indicated the types of locomotives and/or railcar compositions in which the maximum partial intensity of disturbance is due to the following factors regarding the working ambient of the drivers cab: visibility, intensity of the difficulty of operation, and intensity of disturbance of the audible traffic noise. KEY WORDS: traffic environment, cognitive ergo-assessment, dominant factors of subjective disturbances, assessment parameters, safety and reliability