Use Of Joystick Research Articles

Fabrication of Manually Operated Electro Magnetic Abrasive Finishing

The aim of our project is to obtain precision finishing of rough surfaces which are required to the work by addition of joystick to adjust the magnetic field on to the required surface. The magnetic field can relocated at any point by the use of joystick by the use of arduino uno board. Arduino can be used to develop interactive objects, taking inputs from a variety of switches or sensors, and controlling a variety of lights, motors, and other physical outputs. The results demonstrate the viability of the manually operated (EMAF) setup in achieving desired surface finishes across a range of materials, including metals and composites. It is designed to offer flexibility and ease of use, allowing operators to adjust parameters such as magnetic field intensity, abrasive particle size, and feed rate. Through a series of experiments and analysis, the efficiency of the fabricated system is evaluated in terms of surface roughness, material removal rate, and surface integrity. Key Words: Precision finishing, Magnetic force, Surface quality, Polishing, Manual operation.

Sensor Based Wheelchair by Speech Recognition

Abstract: According to research there are about 6 million populations in the world who are paralyzed and needs a wheelchair for their mobility. Earlier the wheelchairs had to be moved and be externally supported by any person. To help overcome this “joystick-controlled wheelchairs” are developed. But in regular use, these joystick-controlled wheelchairs became difficult to use. Especially in the case of paralyzed people, the use of joystick became more difficult due to the hard buttons and unidirectional use of the joysticks. To overcome these problems, we’ve tried to develop a “gesture-controlled wheelchair” which can be moved with a slight tilt of the hand. This can be used in both hands and can be controlled to come to the user from a distance. The current work is implemented with Arduino based devices such as Arduino UNO processors and programmed through Arduino IDE. Keywords: Sensor wheelchair, Arduino NANO, L293D, PCB, Bluetooth Module, Arduino IDE

Effects On Hand Grip Strength: An Evaluation For Fifa E-sport Players

PURPOSE: This research project found the effects at the neuromuscular level in the forearm of training session usage of video games through measuring of hand grip strength in players of the FIFA19 video game. METHODS: The present study had a universe of 25 men aged 25±5 years, body mass 67.6±9.9 kg and body height of 172.4 ± 6.72 cm, who practiced the FIFA video game for more than 3 days per week and three hours training sessions. Participants were asked for a 24-hour rest period in which they should not have done any physical activity, nor used their video game consoles. An initial measurement of hand grip strength was made using a portable dynamometer Baseline (±1) with a capacity of 90 kg of hand grip, and a competition system that was randomly designed in the FIFA19 all-in-all game, for a consecutive 30-minute practice per player. Finally, new measurements of hand grip strength were found to verify that the strength in the forearm changed. RESULTS: An average decrease of 10 kg of force in the right hand and 6 kg in the left hand were found. The statistical test of Shapiro-Wilk was applied in order to conclude whether the sample had a normal distribution; finding that the data followed a non-parametric behavior, based on this result a Mann Whitney U test was used with a confidence interval of 92% confirming that the change of strength in the right arm had a substantial change effect with a ρ=0.061 and the left arm presented a non-significant variation ρ=0.122. CONCLUSIONS: Prolonged exposure to video games with the use of joysticks represented a risk at the neuromuscular level in the forearm due to the continued position that each player usually maintained. Additionally, the loss of strength could lead to generate injuries such as tendonitis, carpal tunnel, epicondylitis and other musculoskeletal disorders or Trigger-finger due to the fatigue presented. Therefore, it is essential to develop strategies that improve the response level in the resistance and strength of the forearm in people who practice E-Sports both in professional or amateur mode.

Automated Gesture Based Wireless Wheelchair Control by Means of Accelerometer

According to a research there are about 6 million populations in the world who are paralysed and needs a wheelchair for their mobility. Earlier the wheel chairs had to be moved and be externally supported by any person. To help overcome this “joystick-controlled wheelchairs” are developed. But in regular use, these joystick-controlled wheelchairs became difficult to use. Especially in the case of paralysed people, the use of joystick became more difficult due to the hard buttons and unidirectional use of the joysticks. To overcome these problems, we’ve tried to develop a “gesture-controlled wheelchair” which can be moved with a slight tilt of the hand. This can be used in both hands and can be controlled to come to the user from a distance. The current work is implemented with Arduino based devices such as Arsuino NANO and UNO processors and programmed through Arduino IDE.

Automated Gesture Based Wireless Wheelchair Control by Means of Accelerometer

According to a research there are about 6 million populations in the world who are paralysed and needs a wheelchair for their mobility. Earlier the wheel chairs had to be moved and be externally supported by any person. To help overcome this “joystick-controlled wheelchairs” are developed. But in regular use, these joystick-controlled wheelchairs became difficult to use. Especially in the case of paralysed people, the use of joystick became more difficult due to the hard buttons and unidirectional use of the joysticks. To overcome these problems, we’ve tried to develop a “gesture-controlled wheelchair” which can be moved with a slight tilt of the hand. This can be used in both hands and can be controlled to come to the user from a distance. The current work is implemented with Arduino based devices such as Arsuino NANO and UNO processors and programmed through Arduino ID

Reconstruction of the Scapholunate Ligament Using Capitohamate Bone-Ligament-Bone.

Background The biomechanical properties of the capitohamate (CH) ligament are equivalent to those of the scapholunate (SL) interosseous ligament. We reconstructed the SL ligament using the CH bone-ligament-bone substitute for chronic injury of the SL ligament. Patients and Methods Beginning in 2008, 15 wrists of 14 patients with an average age of 38 years underwent this procedure with a minimum follow-up of 2 years. Thirteen wrists had an SL joint gap more than 3 mm, and two had a complete SL ligament disruption with a severe dorsal intercalated segment instability (DISI) deformity. Kirschner wires (K-wires) were removed 8 weeks after the surgery, then active ROM exercise began. Pain (on visual analog scale [VAS]), wrist motion (angle), radiographic characteristics, such as SL gap (mm) and SL angle, and Modified Mayo Wrist Score (MMWS) were evaluated. Technique The SL joint was reduced by manipulation or with the use of joysticks, then temporary fixed with K-wires. A dorsal trough was then made between the scaphoid and the lunate. The proximal half of the CH ligament was harvested with attached bone from the capitate and hamate (CH bone-ligament-bone), inset into the SL trough, and fixed firmly with 1.2-mm diameter titanium screws in the scaphoid and lunate, respectively. Results The VAS improved from 77 preoperatively to 12 postoperatively. The average wrist extension/flexion was 74°/60°. There was no ossification of the reconstructed SL at the final follow-up. The SL gap improved from an average of 4.8 mm to an average of 2.1 mm, and the SL angle changed from 67° to 55°. The MMWS improved to 82 points postoperatively from a preoperative average of 47 with eight excellent, five good, and two fair results.

A Method of Open Reduction of an Irreducible Hawkins Type III Fracture of the Talar Neck

Hawkins type III fracture talar neck may sometimes be a nightmare for surgeons to reduce, even intraoperatively. It is difficult to reduce as the talar body is locked into its dislocated posteromedial position out of both the ankle and subtalar joint. Maneuvers of reduction have been described both in dorsiflexion and plantarflexion of ankle, but these are complicated and not tissue friendly. Further, various methods of grasping and pushing the dislocated talar body by use of joysticks and distractors have been advocated. To accomplish this intraoperatively, we present a convenient and utilitarian method using only 2 smooth 1.5-mm Kirschner wires and a JESS distractor clamp. Two key concepts to keep in mind while reducing such fracture dislocations are also highlighted. This was done in a 22-year-old male with 7-day-old Hawkins type III fracture of the left talar neck and a right Pilon fracture with good results at 2 year follow-up.

Development of a dual joystick‐controlled laser trapping and cutting system for optical micromanipulation of chromosomes inside living cells

A multi-joystick robotic laser microscope system used to control two optical traps (tweezers) and one laser scissors has been developed for subcellular organelle manipulation. The use of joysticks has provided a "user-friendly" method for both trapping and cutting of organelles such as chromosomes in live cells. This innovative design has enabled the clean severing of chromosome arms using the laser scissors as well as the ability to easily hold and pull the severed arm using the laser tweezers.

Real-Time Drilling-Process Optimization

This article, written by Assistant Technology Editor Karen Bybee, contains highlights of paper SPE 119650, "Real-Time Optimization of the Drilling Process - Challenges in Industrialization," by E. Cayeux, SPE, E.W. Dvergsnes, SPE, and F. Iversen, SPE, International Research Institute of Stavanger, originally prepared for the 2009 SPE/IADC Drilling Conference and Exhibition, Amsterdam, 17-19 March. The paper has not been peer reviewed. A new drilling-control system for real-time optimization and automation has been developed in an ongoing research project, which now will enter an industrialization phase. The system, which is based on application of advanced real-time process models for calculation of both hydraulic and mechanical forces, requires an extensive set of input data. Results from the calculation modules are applied directly in the drilling-control system, affecting parameters such as pipe acceleration, velocity and deceleration, and the pump-startup profile. Introduction During the last decade, computer-controlled machinery have made it possible to control the drawworks, the topdrive, mud pumps, and the iron roughneck or pipe-handling equipment from a drilling workstation by use of joysticks and keypads. Recent developments enable control of the machinery within safe-guard boundaries through application of model simulations, accounting for the effects of fluid and pipe movements in the wellbore. These new extended systems have the potential to reduce the risk of damaging the well and the downhole equipment and, subsequently, to reduce nonproductive time. For such extended systems to function properly, a more precise description of the drillstring components is required to calculate pressure losses, mechanical loads, and heat transfer. Furthermore, complete descriptions of the wellbore architecture, formation prognosis, trajectory, and drilling-fluid properties are needed for configuration of the applied models. Most of this information is not available in standard rig systems, and no standard work process has been established to make this information available before actual operations. For such systems to achieve their full potential, the necessary information must be quality controlled and made available at the right time, because an error in this information could lead to potentially serious incidents. In January 2008, a field test of a new system for automated control of the drilling process was performed on the Statfjord C platform in the North Sea. Because the system was developed through a research project, the focus up to now has been on robustness. The system now is entering the industrialization phase, with a stronger focus on system application, including the following.Sensor quality and reliability.Availability of wellbore description including information exchange between different systems.Work processes for updating well bore description and quality control of data.User friendliness.Personnel training.

On the Use of Low-Cost Computer Peripherals for the Assessment of Motor Dysfunction in Parkinson's Disease Quantification of Bradykinesia Using Target Tracking Tasks

The potential of computer games peripherals to measure the motor dysfunction in Parkinson's diseases is assessed. Of particular interest is the quantification of bradykinesia. Previous studies used modified or custom haptic interfaces, here an unmodified force feedback joystick and steering wheel are used with a laptop. During testing an on screen cursor moves in response to movements of the peripheral, the user has to track a continuously moving target (pursuit tracking), or move to a predetermined target (step tracking). All tasks use movement in the horizontal axis, allowing use of joystick or steering wheel. Two pursuit tracking tasks are evaluated, pseudo random movement, and a swept frequency task. Two step tracking tasks are evaluated, movement between two or between two of five fixed targets. Thirteen patients and five controls took part on a weekly basis. Patients were assessed for bradykinesia at each session using standard clinical measures. A range of quantitative measures was developed to allow comparison between and within patients and controls using analysis of variance (ANOVA). Both peripherals are capable of discriminating between controls and patients, and between patients with different levels of bradykinesia. Recommendations for test procedures and peripherals are given.

Single-switch control versus powered wheelchair for training cause-effect relationships: case studies

Objectives. Traditional habilitation recommends the use of single switch control and simple computer games as pre-training of cause-effect relationships and joystick control before training in use of a powered wheelchair. Findings from studies of individuals at an early developmental level driving a powered wheelchair suggest it may be more effective to reverse order. Methods. We studied the outcome of powered wheelchair activity in context (self-directed locomotion). Participants included 40 disabled individuals and 17 typically developed infants functioning at an early developmental level. The activity in the wheelchair was paralleled with the use of single switch controls connected both to toys and to a computer with simple ``press-action'' software. Results. The cognitive understanding of the simple cause-effect (use of joystick causes the effect of motion of the wheelchair) developed earlier than the understanding (press on single switch causes activation of toy or apparatus). Conclusion. The recommendation to use single switch controls as pre-training for driving a powered wheelchair corresponds with individuals with quite good cognitive function but not with individuals who function at an early developmental level. For individuals with severe or profound mental retardation the possibilities to understand cause-effect relationships are found in tools that affect all their senses, their whole body. A powered wheelchair is such a tool. When the individual activates the joystick, the wheelchair moves, affecting all senses and the individual's position in space. This event provides arousal, interest and motivation to further manipulate and explore the cause of the effect. (Less)

Development of a robot language for hot-line work allowing practical use of the hot-line work robot system 'Phase II'

We are developing the robot system Phase II, which executes various hot-line work for equipment, such as poles and overhead lines, charged at high voltages (AC 6.6 kV/22 kV). The Phase II is designed to be a human-cooperative semi-automatic system which performs tasks through a combination of sensor-based controlled motion and auxiliary operation, facilitated by the operator's use of joysticks. As of the present, seven Phase II prototype units have been developed. Verification of various work and expansion of applied task programs are in progress with the aim of practical utilization in the immediate future. This paper describes the design concept and developmental outline of a recently developed robot language for hot-line work. The language adopts conventional task language used by distribution workers, the users of the system, to make it easily understandable. Regarding series of basic motions which require the system's contact with other objects, it has become necessary to set up special parameters including compliance damping and other factors. We have defined routine motion as a set, making such sets macro-commands. Through their use, task programs may be described with fewer parameters at the task-oriented level. Practical use of the robot system will require end-users to effectively work in both the task planning and the task execution stages. The language was developed with this in mind.