scholarly journals APPLICATION OF MATLAB-BASED INTERFACE FOR THE CONTROL OF MICROBIOREACTOR OPERATION

2018 ◽  
Vol 80 (6) ◽  
Author(s):  
Muhd Nazrul Hisham Zainal Alam ◽  
Tan Jia Hou ◽  
Abbas Kouzani ◽  
Abdul Rashid Husain
Keyword(s):  
Embedded System ◽  
Low Cost ◽  
Control Program ◽  
Cost Effective ◽  
Effective Solution ◽  
Matlab Software ◽  
Input And Output ◽  
Software Packages ◽  
Working Volume ◽  
Degree Of Control

This work presents the use of Arduino-based embedded system interfaced to MATLAB software packages as an alternative cost-effective solution for the control of the microbioreactor operation. In the presented work, a microbioreactor platform with a working volume of approximately 1.5 mL have been fabricated using a low-cost poly (methylmethacrylate) (PMMA) and poly(dimethylsiloxane) (PDMS) polymers. The reactor have been integrated with stirring control, fuzzy logic temperature control, and aeration feature via a miniature air compressor. Control program of the microbioreactor system was established using Simulink, MATLAB software were executed by interfacing the program with Arduino Mega 2560 microcontroller for input and output of signals. Numbers of experimentation were performed to validate and demonstrate the potential of the proposed method. Satisfactorily degree of control and supervision was achieved (+ 1-3% of the set-point values).  The entire microbioreactor system can be operated stably for a least 48 hours. The work demonstrated the usefulness of MATLAB software in establishing a microbioreactor operating interface that consisted merely few Simulink program block sets and executed on a low-cost Arduino board.

scholarly journals Design and Development of Perimeter Security Platform

2020 ◽  
Vol 9 (2S5) ◽  
pp. 64-66
Keyword(s):  
Sensor Network ◽  
Low Cost ◽  
Cost Effective ◽  
Vibration Sensor ◽  
Smart Devices ◽  
Effective Solution ◽  
Design And Development ◽  
Specific Location ◽  
Sensor Information ◽  
Ethernet Interface

There are many integrated perimeter security solutions available, the main objective of this paper is to provide cost effective solution. This paper mainly focuses on design of a Low-cost vibration module with RS485 interface, Controller hub with RS485 interface and Ethernet interface and a Command Centre server. The platform consists of RS485 daisy chained vibration sensor network connected to control server via Controller hub. It is designed to pin point the area of intrusion and cueing the camera to that specified location. It can be integrated with smart devices like PTZ/Thermal/IR cameras or radars. Each daisy chain consists of 250 sensors with each sensor 3 metres apart, each ethernet hub can handle 2 daisy chains. The Controller hub gets vibration sensor information via RS485 and transmits data to Command centre using TCP/IP protocol. The Controller centre identifies the location of the sensor and moves the PTZ camera to the specific location and live streams the data to the user.

scholarly journals Robust Feedback Control Design of Underactuated Robotic Hands with Selectively Lockable Switches for Amputees

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Bilal M. Yousuf ◽  
Asim Mehdi ◽  
Abdul Saboor Khan ◽  
Aqib Noor ◽  
Arslan Ali
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
Second Step ◽  
Robotic Hand ◽  
Effective Solution ◽  
Robotic Hands ◽  
Daily Lives ◽  
Mechanical Hand ◽  
Controlling System ◽  
The Coefficient Of Friction

In recent years, reproduction of human mechanical hand with upgraded abilities is one of the major concerns. This paper addresses the problems of underactuated robotic hand with low cost design as it avoids electromyogram (EMG) sensors. The main goal is to balance the hand in the way, like grabbing, speed, and power, and provide a more robust and cost effective solution. All fingers have some mechanical consistency for picking up objects in a better way. A Flex sensor is attached to all fingers and it is interfaced with a computer using Arduino UNO microcontroller. The sensor aids the arm in three different directions: at first it senses whether an object is grasped or not. In the second step, it determines the coefficient of friction between the objects. Finally it grasps the object and stops. One of the primary issues of prosthetic hand is to have the capacity to satisfy every detail of torque, speed, and latency. In this research, we have developed a model of robotic hand with some modifications. The adaptability of grasping is compared with the degree of freedom (DOF) along with the quantity of fingers. We are controlling our hands via sensors based signal controlling system. The idea is to design a robotic hand, which has low cost, is easy to use, and is light in weight, which helps the amputees to use it with ease in their daily lives. The efficacy of the proposed control is verified and validated using simulations.

scholarly journals Towards a More Robust Non-Rigid Robotic Joint

2020 ◽  
Vol 3 (4) ◽  
pp. 45
Author(s):  
Vítor H. Pinto ◽  
José Gonçalves ◽  
Paulo Costa
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
Robotic Manipulators ◽  
Robotic Systems ◽  
Control Architecture ◽  
Effective Solution ◽  
Adverse Conditions ◽  
Compliant Control ◽  
Rigid Joints ◽  
Final System

The following paper presents an improved, low cost, non-rigid joint that can be used in both robotic manipulators and leg-based traction robotic systems. This joint is an improvement over the previous one presented by the same authors because it is more robust. The design iterations are presented and the final system has been modeled including some nonlinear blocks. A control architecture is proposed that allows compliant control to be used under adverse conditions or in uncontrolled environments. The presented joint is a cost-effective solution that can be used when normal rigid joints are not suitable.

Efficient Solving Method of Common-Mode Interference in Balanced Bus

2013 ◽  
Vol 340 ◽  
pp. 418-421
Author(s):  
Xiao Ming Chang ◽  
Chun Geng Gao
Keyword(s):  
Simple Structure ◽  
Low Cost ◽  
Cost Effective ◽  
Communication Line ◽  
Effective Solution ◽  
Common Mode ◽  
Mathematical Formula ◽  
Common Mode Voltage ◽  
Definition Of ◽  
Mode Interference

To analyze the causes of common-mode interference from the definition of common-mode voltage, and the combination of graphics using mathematical formula image illustrates the size of common-mode voltage. At the same time, to analyze the method and defects of common-mode interference in the traditional two-line balanced communication line. On this basis, a cost-effective solution circuit is proposed. The results prove that the circuit has the advantages of low cost, simple structure, convenient features.

scholarly journals Design and Development of Software for the SILAR Control Process Using a Low-Cost Embedded System

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 967
Author(s):  
M. Calixto-Rodriguez ◽  
Jorge S. Valdez Martínez ◽  
M. A. Meneses-Arcos ◽  
Jose Ortega-Cruz ◽  
E. Sarmiento-Bustos ◽  
...  
Keyword(s):  
Thin Films ◽  
Embedded System ◽  
Copper Oxide ◽  
System Development ◽  
Low Cost ◽  
Control Process ◽  
Control Program ◽  
Morphological Properties ◽  
System Control ◽  
Oxide Thin Films

Inexpensive equipment for the deposition of semiconductor thin films by SILAR was designed. Using a low-cost embedded system, a prototype controlled through a human–machine interface (HMI) was constructed. Simple, open-source software was used. The use of an HMI and programming based on state machines showed an improvement in the system control, program flow, and efficiency. The system development consists of three stages: structural design, electronics, and programming of the control and HMI. This system controls the variables of the SILAR process, such as immersion time in chemical solutions, sequence of substrates, and the number of cycles. In order to test the automated SILAR prototype, copper oxide thin films on glass substrates were processed. The copper oxide thin films have been characterized by X-ray diffraction (XRD), UV-VIS, and SEM to investigate the structural, optical, and morphological properties, respectively.

scholarly journals Low cost, high performance processing of single particle cryo-electron microscopy data in the cloud

2015 ◽  
Author(s):  
Michael A. Cianfrocco ◽  
Andres E. Leschziner
Keyword(s):  
Electron Microscopy ◽  
Single Particle ◽  
High Performance ◽  
Low Cost ◽  
Cost Effective ◽  
Cryo Electron Microscopy ◽  
Software Packages ◽  
Electron Microscopes ◽  
Microscopy Data ◽  
New Generation

The advent of a new generation of electron microscopes and direct electron detectors has realized the potential of single particle cryo-electron microscopy (cryo-EM) as a technique to generate high-resolution structures. However, calculating these structures requires high performance computing clusters, a resource that may be limiting to many likely cryo-EM users. To address this limitation and facilitate the spread of cryo-EM, we developed a publicly available ‘off-the-shelf’ computing environment on Amazon’s elastic cloud computing infrastructure. This environment provides users with single particle cryo-EM software packages and the ability to create computing clusters that can range in size from 16 to 480+ CPUs. Importantly, these computing clusters are also cost-effective, as we illustrate here by determining a near-atomic resolution structure of the 80S yeast ribosome for $28.89 USD in ~10 hours.

scholarly journals Fabrication of Rice Transplanter and Plant Sapling Machine

2019 ◽  
pp. 425-429
Author(s):  
Kulothungan. S ◽  
Sivanesh S ◽  
Sivaprakasam S
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
Petrol Engine ◽  
Effective Solution ◽  
The Cost ◽  
Crank Mechanism

Though many equipment's are available in the market, there is still a need for cost effective solution for rice transplanting and planting and planting of the saplings. This project is aimed at a low cost solution for farmers for rice transplanting without compromising on efficiency. The cost has been brought down by the use of a simple crank mechanism can be either manually operated or by a petrol engine when needed the equipment can be used for planting other saplings also.

scholarly journals Low-cost Voice Based Braille Script Communication for Teaching Aid

2021 ◽  
pp. 457-467
Author(s):  
Shaik Asif. Hussain ◽  
◽  
Shaik Javeed. Hussain ◽  
Raza Hasan ◽  
Salman Mahmood
Keyword(s):  
Embedded System ◽  
Traditional Method ◽  
Low Cost ◽  
Cost Effective ◽  
Assistive Device ◽  
Raspberry Pi ◽  
Proximity Sensor ◽  
Ir Sensors ◽  
Visually Challenged ◽  
First Time

Though the Traditional method of teaching Braille script for the blind is simple, yet it has some potential drawbacks. Handling the marbles and the slate for a first-time does make learning very difficult. In most cases, the teacher will also be blind, so for each representation, the teacher must reach each student’s slate and change the arrangement of the marbles. This is a harder and time taking job. This project focuses on the design and development of an embedded system based electronic assistive device which eases the problem of teaching visually challenged beginner. This Project is implemented using an ordinary Braille slate with IR sensors and Raspberry Pi 2 Model B board which is cost-effective and simple. The Software is implemented in Simulink of MATLAB R2020. The placing of the marbles in the slate is sensed by the IR Proximity sensor. If the combination of the marbles placed is correct, then the Raspberry Pi’s Text to speak converter produces the audio sound output of the corresponding letter. This method provides an easy way of teaching Braille Script with less effort for the teacher.

scholarly journals Enabling Image-Based Streamflow Monitoring at the Edge

2020 ◽  
Vol 12 (12) ◽  
pp. 2047 ◽  
Author(s):  
Fabio Tosi ◽  
Matteo Rocca ◽  
Filippo Aleotti ◽  
Matteo Poggi ◽  
Stefano Mattoccia ◽  
...  
Keyword(s):  
Embedded System ◽  
High Speed ◽  
Low Cost ◽  
Cost Effective ◽  
Engineering Practice ◽  
Embedded Devices ◽  
Cloud Processing ◽  
Internet Connections ◽  
Processing Device

Monitoring streamflow velocity is of paramount importance for water resources management and in engineering practice. To this aim, image-based approaches have proved to be reliable systems to non-intrusively monitor water bodies in remote places at variable flow regimes. Nonetheless, to tackle their computational and energy requirements, offload processing and high-speed internet connections in the monitored environments, which are often difficult to access, is mandatory hence limiting the effective deployment of such techniques in several relevant circumstances. In this paper, we advance and simplify streamflow velocity monitoring by directly processing the image stream in situ with a low-power embedded system. By leveraging its standard parallel processing capability and exploiting functional simplifications, we achieve an accuracy comparable to state-of-the-art algorithms that typically require expensive computing devices and infrastructures. The advantage of monitoring streamflow velocity in situ with a lightweight and cost-effective embedded processing device is threefold. First, it circumvents the need for wideband internet connections, which are expensive and impractical in remote environments. Second, it massively reduces the overall energy consumption, bandwidth and deployment cost. Third, when monitoring more than one river section, processing “at the very edge” of the system efficiency improves scalability by a large margin, compared to offload solutions based on remote or cloud processing. Therefore, enabling streamflow velocity monitoring in situ with low-cost embedded devices would foster the widespread diffusion of gauge cameras even in developing countries where appropriate infrastructure might be not available or too expensive.

scholarly journals Pilot testing of sticker tool method for monitoring DOTS providers under revised national tuberculosis control program in Khammam: operational research

2020 ◽  
Vol 7 (5) ◽  
pp. 790
Author(s):  
Nagapraveen Veerapu ◽  
Ravi Kumar Philip Bear ◽  
Subbarao Varikuti ◽  
Jayakrishna Kurada
Keyword(s):  
Conversion Rate ◽  
Low Cost ◽  
Intervention Group ◽  
Control Program ◽  
Cost Effective ◽  
Control Group ◽  
Sputum Smear ◽  
Self Administration ◽  
Total Burden ◽  
Cluster Randomized

Background: Globally, tuberculosis (TB) is one of the leading causes of death. In 2016, 10.4 million people were affected with TB and accounted for 1.7 million deaths. India ranks the first among the seven leading countries that account for 64% of the total burden of TB. To fill the gaps in adherence to therapy and to make the TB Control programs successful, evidence based supplementary low cost effective monitoring tools and techniques are needed. The aims were to determine whether the new sticker tool method acts as supplementary to direct observation component of ‘Directly observed treatment, short course (DOTS) strategy’ used for monitoring adherence to anti-tuberculosis therapy among newly diagnosed sputum positive TB patients; and to compare Sputum smear conversion rate between the intervention group and control group at the end of Intensive phase (IP).Methods: A pragmatic cluster randomized control trial was conducted for a period of 9 months from April 2018 to December 2018 in Rural Khammam district. Data was represented in frequencies and percentages and Means.Results: The delay in sending SMS decreased after field visit (1st week of therapy) but delay again increased as the days passed. The study measured indirectly measured the adherence to the therapy by sputum conversion rate (83.3%). It was noticed that 45.5% stickers did not tally with the date of consumption of TB medications or with the date of sticking on the sticker chart.   Conclusions: The study shows self administration is also a good option. There may be other factors that play an important role in adherence to anti tuberculosis treatment (ATT). 

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