A New Low-Cost DSP Educational Tool for a Laboratory for Motor Control

2009 ◽  
Vol 46 (2) ◽  
pp. 183-197 ◽  
Author(s):  
Daniel Montesinos-Miracle ◽  
Samuel Galceran-Arellano ◽  
Antoni Sudrià-Andreu ◽  
Oriol Gomis-Bellmunt
Keyword(s):  
Motor Control ◽  
Low Cost ◽  
Educational Tool

scholarly journals Merging a Remote Microscope and Virtual Worlds: Teaching Kingdom Plantae on Basic Education

2016 ◽  
Vol 12 (04) ◽  
pp. 27 ◽  
Author(s):  
Caroline Porto Antonio ◽  
João Paulo Lima ◽  
João Bosco Alves ◽  
Juarez Bento Silva ◽  
José Pedro Simão
Keyword(s):  
Learning Environment ◽  
Open Source ◽  
Science Teaching ◽  
Open Source Software ◽  
Virtual Worlds ◽  
Basic Education ◽  
Low Cost ◽  
Virtual Learning Environment ◽  
Educational Tool ◽  
Plant Parts

This paper presents an educational tool based on open source software and low cost hardware to supplement science teaching, merging concepts of remote experiment, virtual worlds and virtual learning environment. Using an avatar, students can move around in an enriched environment and access a remote microscope that enables visualization of plant parts and interaction with the available samples.

scholarly journals INVESTIGATION OF FLOW FIELD OVER POST FLOW MODEL WITH THE AID OF ePIV SYSTEM

2018 ◽  
Vol 18 (1) ◽  
pp. 31-40
Author(s):  
Ali S Abbas ◽  
Noor Y Abbas ◽  
Shahed A Kamel
Keyword(s):  
Flow Field ◽  
Velocity Vector ◽  
Flow Model ◽  
Low Cost ◽  
Adverse Pressure Gradient ◽  
High Tech ◽  
Educational Tool ◽  
Theoretical Interest ◽  
Compact Size ◽  
Sudden Appearance

Post flow model was used in the present study as an insert model for the interactiveflow study innovative device namely called ePIV. The separation of the flow and itssubsequent reattachment to a solid surface occurs in many systems, and is of practical aswell as of theoretical interest. Three different values for the upstream velocity were selectedin the present work within the range (14, 24, and 32 mm\s) and two set of figures wereobserved for every value of upstream velocity. First set for velocity vector plots and shadedcolor plot while the second is for picture frames captured for the purpose of ePIV systemsoftware. It was found that ePIV system can be used in diverse educational settings becauseof its effectiveness as an educational tool, high-tech appeal, compact size, low cost andsafety. Also, It was concluded that the sudden appearance for the post height result in avortex spot that lead to an adverse pressure gradient concentrate the majority of high bulkvelocity magnitude at the upper half of the post flow model height.

scholarly journals First validation of a novel assessgame quantifying selective voluntary motor control in children with upper motor neuron lesions

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jeffrey W. Keller ◽  
Julia Balzer ◽  
Annina Fahr ◽  
Jan Lieber ◽  
Urs Keller ◽  
...  
Keyword(s):  
Motor Control ◽  
Motor Neuron ◽  
Low Cost ◽  
Compensatory Mechanisms ◽  
Involuntary Movements ◽  
Clinical Assessments ◽  
Voluntary Motor ◽  
Outcome Score ◽  
Computer Based ◽  
Neurologically Intact

AbstractThe question whether novel rehabilitation interventions can exploit restorative rather than compensatory mechanisms has gained momentum in recent years. Assessments measuring selective voluntary motor control could answer this question. However, while current clinical assessments are ordinal-scaled, which could affect their sensitivity, lab-based assessments are costly and time-consuming. We propose a novel, interval-scaled, computer-based assessment game using low-cost accelerometers to evaluate selective voluntary motor control. Participants steer an avatar owl on a star-studded path by moving the targeted joint of the upper or lower extremities. We calculate a target joint accuracy metric, and an outcome score for the frequency and amplitude of involuntary movements of adjacent and contralateral joints as well as the trunk. We detail the methods and, as a first proof of concept, relate the results of select children with upper motor neuron lesions (n = 48) to reference groups of neurologically intact children (n = 62) and adults (n = 64). Linear mixed models indicated that the cumulative therapist score, rating the degree of selectivity, was a good predictor of the involuntary movements outcome score. This highlights the validity of this assessgame approach to quantify selective voluntary motor control and warrants a more thorough exploration to quantify changes induced by restorative interventions.

scholarly journals Using Consumer Perceptions of a Voice-Activated Speaker Device as an Educational Tool (Preprint)

2019 ◽  
Author(s):  
Siubak Chung ◽  
Benjamin KP Woo
Keyword(s):  
Mental Health ◽  
Health Outcomes ◽  
Social Isolation ◽  
Low Cost ◽  
Mental Development ◽  
Consumer Perceptions ◽  
Educational Tool ◽  
Older Population ◽  
Potential Benefits ◽  
Improve Health

UNSTRUCTURED Voice-activated smart speakers, with their ease of setup, low cost, and versatility, could be an affordable and accessible way to improve health and mental health outcomes. In 2018, there were a total of 320 comments generated from verified purchases of a voice-activated smart speaker. These comments revealed there could be potential benefits of reducing loneliness and social isolation for adult users, especially for the older population. However, further research is warranted to determine whether using such devices would be harmful to children’s physical or mental development.

scholarly journals Using Consumer Perceptions of a Voice-Activated Speaker Device as an Educational Tool

10.2196/17336 ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. e17336 ◽  
Author(s):  
Siubak Chung ◽  
Benjamin KP Woo
Keyword(s):  
Mental Health ◽  
Health Outcomes ◽  
Social Isolation ◽  
Low Cost ◽  
Mental Development ◽  
Consumer Perceptions ◽  
Educational Tool ◽  
Older Population ◽  
Potential Benefits ◽  
Improve Health

Voice-activated smart speakers, with their ease of setup, low cost, and versatility, could be an affordable and accessible way to improve health and mental health outcomes. In 2018, there were a total of 320 comments generated from verified purchases of a voice-activated smart speaker. These comments revealed there could be potential benefits of reducing loneliness and social isolation for adult users, especially for the older population. However, further research is warranted to determine whether using such devices would be harmful to children’s physical or mental development.

scholarly journals Software Based Programmable IGBT IPM Dead-Time Insertion Module Using 16-bit Micro Controller for BLDC Motor Control Application with 3-Phase Sinusoidal and Trapezoidal Drive

2020 ◽  
Vol 13 (2) ◽  
pp. 1
Author(s):  
Hastanto SM Widodo ◽  
Suryadi Harmanto ◽  
Sarifuddin Madenda ◽  
Lingga Hermanto
Keyword(s):  
Motor Control ◽  
Dead Time ◽  
Low Cost ◽  
Torque Ripple ◽  
General Purpose ◽  
Power Module ◽  
Power Switching ◽  
Insulated Gate Bipolar Transistor ◽  
Controller Board ◽  
Control Application

Motor control application, especially for medium to high power implementation, will benefit the most with the compactness and robustness of an Integrated Power Module of Insulated Gate Bipolar Transistor also known as IGBT IPM. Nevertheless, implementation motor control with a general purpose micro-processor without any advance timer functionality with IGBT IPM will be challenged by the Dead-Time switching requirement in its power switching implementation. Further, a combined sinusoidal and trapezoidal drive of a motor control is also believed will provides a better control performance in term of lower torque ripple and higher motor top speed. This paper proposed a low-cost alternative to address the requirement by implementing a software based dead time functionality using the low cost 16-bit micro controller board with capability of serving up sinusoidal drive as well as trapezoidal drive for motor control application.

scholarly journals Microcontroller-Based Direct Torque Control Servodrive

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Rafael Rodríguez-Ponce ◽  
Francisco Gustavo Mota-Muñoz
Keyword(s):  
Motor Control ◽  
Digital Signal Processor ◽  
Material Handling ◽  
Engineering Students ◽  
Low Cost ◽  
Complex Structure ◽  
Direct Torque Control ◽  
Postgraduate Education ◽  
Digital Signal ◽  
Torque Control

Robot technology has become an integral part of the automotive industry in several tasks such as material handling, welding, painting, and part assembly. Therefore, the knowledge and skills to control the electric motors in these manipulators are essential for undergraduate electrical engineering students. Currently, the digital signal processor (DSP) is the core chip in industrial motor-control drives; however, the implementation of DSP control algorithms can be quite challenging for an experienced programmer, even more so for the novice. Considerable research has been done on this topic, although authors usually focus on DSP-based motor drives using popular control techniques such as field-oriented control (FOC). Although highly efficient, this approach is usually reserved for postgraduate education due to its complex structure and functionality. In this paper, the authors present a modular servodrive design on a low-cost, general-purpose microcontroller using the direct torque control (DTC) method, an alternative known for greater simplicity and torque response, compared with FOC. The system design was based on Micropython language allowing the software structure to be more manageable and the code to be more understandable. This design will be useful to undergraduates and researchers with interests in motor control design.

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