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.

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.

Performance evaluation of a low-cost odour trap installed in waterless urinals

2016 ◽  
Vol 6 (2) ◽  
pp. 252-258
Author(s):  
S. Ramesh Sakthivel ◽  
Md Azizurrahaman ◽  
V. Ganesh Prabhu ◽  
V. M. Chariar
Keyword(s):  
Low Cost ◽  
Flow Analysis ◽  
Cost Effective ◽  
Particle Flow ◽  
Ammonia Gas ◽  
Maintenance Costs ◽  
Gas Concentration ◽  
Adverse Conditions ◽  
The Past ◽  
Cost Effective Alternative

Waterless urinals save precious fresh water normally used for flushing and reduce odour levels in restrooms. However, existing models of waterless urinals available on the market are expensive and maintenance costs of the odour traps of these urinals are also quite high. Experiments conducted using a low cost membrane-based waterless-urinal odour prevention trap available in India revealed a reduction of over 90.5% in ammonia gas concentration in the urinals. The ammonia levels observed, in the range of 0.22 to 0.30 ppm in waterless urinals fitted with the odour trap evaluated in this study, is comparable to values reported for the widely used sealant liquid based waterless urinals in the past. No sign of clogging was observed in the clogging tests conducted. Passage of particles up to 4 mm in size in the particle flow analysis tests conducted is somewhat higher than the 2 mm reported for sealant liquid and membrane odour traps in previous studies, and it reveals that the odour trap can perform in adverse conditions without getting clogged. Economics of installation and maintenance aspects of waterless urinals carried out here show that the odour trap evaluated in this study can really be a cost effective alternative.

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 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.

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 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.

Alternative customized instrumentation and technique for percutaneous balloon compression rhizotomy for trigeminal neuralgia

2020 ◽  
Vol 132 (6) ◽  
pp. 1938-1941
Author(s):  
Robert A. Scranton ◽  
Kushal Shah ◽  
Aaron A. Cohen-Gadol
Keyword(s):  
Trigeminal Neuralgia ◽  
Operative Time ◽  
Low Cost ◽  
Cost Effective ◽  
The United States ◽  
Gasserian Ganglion ◽  
Effective Solution ◽  
Balloon Compression ◽  
Percutaneous Balloon ◽  
Percutaneous Balloon Compression

OBJECTIVETrigeminal neuralgia is a debilitating disease that can be treated effectively by a number of modalities. Percutaneous balloon compression rhizotomy of the gasserian ganglion is an important technique that can be offered as a primary or secondary strategy after failure of medical therapy. However, the commercial kit for this procedure was discontinued in the United States in early 2016 and therefore is not currently available. The authors describe a low-cost, effective solution for continuing to offer this procedure using equipment already available in most hospitals.METHODSThe authors provide a detailed equipment list with step-by-step instructions on how to prepare all the necessary items and perform a percutaneous balloon compression rhizotomy.RESULTSThe custom “homemade” kit and technique described have been utilized successfully since June 2016 in 34 patients. The kit is a low-cost alternative, and its application does not add any operative time beyond that required for the previously commercially available kit.CONCLUSIONSPercutaneous balloon compression rhizotomy of the gasserian ganglion is an important technique that should be readily available to patients who are not medically fit for microvascular decompression and need immediate relief of their pain. The alternative kit described here can be assembled easily using equipment that is readily available in most hospitals.

scholarly journals Anti-cheating Online Exams by Minimizing the Cheating Gain

2020 ◽  
Author(s):  
Mengzhou Li ◽  
Sujoy Sikdar ◽  
Lirong Xia ◽  
Ge Wang
Keyword(s):  
Linear Programming ◽  
Integer Linear Programming ◽  
Heuristic Algorithm ◽  
Low Cost ◽  
Cost Effective ◽  
Optimization Methods ◽  
Small Scale ◽  
Optimal Solutions ◽  
Effective Solution ◽  
Privacy Issues

Cheating prevention in online exams is often hard and costly to tackle with proctoring, and it even sometimes involves privacy issues, especially in social distancing due to the pandemic of COVID-19. Here we propose a low-cost and privacy-preserving anti-cheating scheme by programmatically minimizing the cheating gain. A novel anti-cheating scheme we developed theoretically ensures that the cheating gain of all students can be controlled below a desired level aided by the prior knowledge of students’ abilities and a proper assignment of question sequences. Furthermore, a heuristic greedy algorithm we developed can refine an assignment of questions from a cyclic pool of question sequences to efficiently reduce the cheating gain. Compared to the integer linear programming and min-max matching methods in a small-scale simulation, our heuristic algorithm provides results close to the optimal solutions offered by the two standard discrete optimization methods. Hence, our anti-cheating approach could potentially be a cost-effective solution to the well-known cheating problem even without proctoring.

ASSESSMENT OF THE PLATELET COUNT IN THE PREGNANT WOMEN IN IGIMS, PATNA, BIHAR

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Tanwi Singh ◽  
Anshuman Sinha
Keyword(s):  
Platelet Count ◽  
Pregnant Women ◽  
Screening Test ◽  
Low Cost ◽  
Medical Science ◽  
Cost Effective ◽  
Platelet Indices ◽  
Increased Risk ◽  
Low Platelet Count ◽  
Severity Of The Disease

The major risk associated with low platelet count in pregnancy is the increased risk of bleeding during the childbirth or post that. There is an increased blood supply to the uterus during pregnancy and the surgical procedure requires cutting of major blood vessels. Women with thrombocytopenia are at increased risk of losing excessive blood. The risk is more in case of caesarean delivery as compared to vaginal delivery. Hence based on above findings the present study was planned for Assessment of the Platelet Count in the Pregnant Women in IGIMS, Patna, Bihar. The present study was planned in Department of Pathology, Indira Gandhi Institute of Medical Science, Patna, Bihar, India. The present study was planned from duration of January 2019 to June 2019. In the present study 200 pregnant females samples received for the platelet estimation were enrolled in the present study. Clinically platelet indices can be a useful screening test for early identification of preeclampsia and eclampsia. Also platelet indices can assess the prognosis of this disease in pregnant women and can be used as an effective prognostic marker because it correlates with severity of the disease. Platelet count is a simple, low cost, and rapid routine screening test. Hence the data generated from the present study concludes that platelet count can be used as a simple and cost effective tool to monitor the progression of preeclampsia, thereby preventing complications to develop during the gestational period. Keywords: Platelet Count, Pregnant Women, IGIMS, Patna, Bihar, etc.

Janus – A New Approach to Air Combat Pilot Training

2019 ◽  
Vol 2019 (4) ◽  
pp. 7-22
Author(s):  
Georges Bridel ◽  
Zdobyslaw Goraj ◽  
Lukasz Kiszkowiak ◽  
Jean-Georges Brévot ◽  
Jean-Pierre Devaux ◽  
...  
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
High Energy ◽  
Training System ◽  
Embedded Sensors ◽  
Pilot Training ◽  
New Approach ◽  
Combat Aircraft ◽  
Air Combat ◽  
The Cost

Abstract Advanced jet training still relies on old concepts and solutions that are no longer efficient when considering the current and forthcoming changes in air combat. The cost of those old solutions to develop and maintain combat pilot skills are important, adding even more constraints to the training limitations. The requirement of having a trainer aircraft able to perform also light combat aircraft operational mission is adding unnecessary complexity and cost without any real operational advantages to air combat mission training. Thanks to emerging technologies, the JANUS project will study the feasibility of a brand-new concept of agile manoeuvrable training aircraft and an integrated training system, able to provide a live, virtual and constructive environment. The JANUS concept is based on a lightweight, low-cost, high energy aircraft associated to a ground based Integrated Training System providing simulated and emulated signals, simulated and real opponents, combined with real-time feedback on pilot’s physiological characteristics: traditionally embedded sensors are replaced with emulated signals, simulated opponents are proposed to the pilot, enabling out of sight engagement. JANUS is also providing new cost effective and more realistic solutions for “Red air aircraft” missions, organised in so-called “Aggressor Squadrons”.

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