Using a Hydraulically Balanced Beam System in Control Education

1997 ◽  
Vol 119 (4) ◽  
pp. 815-819 ◽  
Author(s):  
Pai-Hsueh Yang ◽  
Mark Lemkin ◽  
David M. Auslander
Keyword(s):  
Low Cost ◽  
Control Algorithms ◽  
Balance Beam ◽  
System A ◽  
Advanced Students ◽  
Ideal Tool ◽  
Control Education ◽  
And Control ◽  
Different Levels ◽  
Control Implementation

This paper discusses a low cost solution to teaching controls in the laboratory through the use of a novel balance beam. The balance beam provides a vehicle to study many aspects of both control implementation and control algorithms. Due to the complexity of the system, a full semester of laboratory exercises is provided for even advanced students. The flexibility of the system provides challenging exercises for different levels of education. A low overall cost translates to accessibility to more schools. The ability to achieve good tracking performance with a simple cascaded loop controller makes this an ideal tool for teaching controls in a laboratory setting.

Design and Simulation of Pedal Simulator in Brake by Wire System

2014 ◽  
Vol 556-562 ◽  
pp. 1358-1361 ◽  
Author(s):  
Wen Bo Zhu ◽  
Fen Zhu Ji ◽  
Xiao Xu Zhou
Keyword(s):  
Simulation Models ◽  
Control Algorithms ◽  
Brake Pedal ◽  
Braking System ◽  
Pedal Force ◽  
Performance Requirements ◽  
System A ◽  
Pedal Feel ◽  
And Control ◽  
Wire System

Wire of the brake pedal is not directly connected to the hydraulic environment in the braking By-wire system so the driver has no direct pedal feel. Then pedal simulator is an important part in the brake-by-wire system. A pedal force simulator was designed based on the traditional brake pedal curve of pedal force and pedal travel, AMESim and Matlab / Simulink were used as a platform to build simulation models and control algorithms. The simulation results show that the pedal stroke simulator and the control strategy meet the performance requirements of traditional braking system. It can be used in brake by wire system.

Design One Kind of Simplified Smart Home Monitor and Controller Based on ARM-Linux System and Information Network to the Public

2012 ◽  
Vol 629 ◽  
pp. 845-847
Author(s):  
Zhan Feng Zhao ◽  
Yun Tao Zhang ◽  
Zhi Quan Zhou ◽  
Hai Yan Yu
Keyword(s):  
Smart Home ◽  
Low Cost ◽  
Text Messages ◽  
Fire Alarm ◽  
The Public ◽  
System A ◽  
Measuring Devices ◽  
Series Of Experiments ◽  
Home Monitor ◽  
And Control

A smart home structure using network (internet, intranet, wireless etc.) is designed and developed to monitor the circumstances and control the appliances in the house when sensors are triggered by some unexpected cases. A good host of low-cost sensors is used to make anti theft alarm, fire alarm, smog alarm etc. And then transmitted these data got from the measuring devices to neutral module. The neutral module is constructed by ARM-S3C6410 hardware and embedded Linux. It can transmit messages to the householders after processed. The householders can visit the web server to make it clear what happened in the house. Moreover, they can control some appliances to make incidences back to normal through the Internet. If the owners are holding mobile phones, the neutral module will transmit text messages to them. In turn, they can also control the appliances by sending some specific instructions. And then the neutral module will give some other messages as feedback. Additionally, visible interphone technology also makes function in this system. A LCD is organized in the neutral module, one person who stays in the house can make a good conversation with others through neutral platform. Finally, a series of experiments are posed to estimate the performance of our solution.

scholarly journals Modeling and Control of a Micro AUV: Objects Follower Approach

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2574 ◽  
Author(s):  
Jesus Monroy-Anieva ◽  
Cyril Rouviere ◽  
Eduardo Campos-Mercado ◽  
Tomas Salgado-Jimenez ◽  
Luis Garcia-Valdovinos
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Vision System ◽  
Low Cost ◽  
Closed Loop System ◽  
Depth Sensor ◽  
Modeling And Control ◽  
System A ◽  
Formal Stability ◽  
Proportional Derivative Controller ◽  
And Control

This work describes the modeling, control and development of a low cost Micro Autonomous Underwater Vehicle (μ-AUV), named AR2D2. The main objective of this work is to make the vehicle to detect and follow an object with defined color by means of the readings of a depth sensor and the information provided by an artificial vision system. A nonlinear PD (Proportional-Derivative) controller is implemented on the vehicle in order to stabilize the heave and surge movements. A formal stability proof of the closed-loop system using Lyapunov’s theory is given. Furthermore, the performance of the μ-AUV is validated through numerical simulations in MatLab and real-time experiments.

Orchestrating light – Gesture-based control of smart lighting

2016 ◽  
Vol 49 (8) ◽  
pp. 943-965 ◽  
Author(s):  
E Juntunen ◽  
P Myöhänen ◽  
J Häikiö ◽  
E-M Sarjanoja ◽  
O Tapaninen ◽  
...  
Keyword(s):  
Real Time ◽  
User Preference ◽  
End User ◽  
User Survey ◽  
Lighting Control ◽  
Smart Lighting ◽  
System A ◽  
And Control ◽  
Camera Sensors ◽  
Control Implementation

In this paper, a gesture-based control system for smart lighting management is introduced. The system consists of multiple depth camera sensors that track the users’ positions, movements and gestures in real-time and forward the data to the main computer where the lighting control commands are generated. The implementation was built into the ‘ResponseRoom’ R&D environment, where two different lighting controls in a real-time installation were validated with the ability to dim and control colour by hand gestures. In order to study end user preference and to discover needs and guidelines for future development of the system, a user survey on gesture-based lighting control in a meeting room application was carried out. In the survey, no predetermined gesture vocabulary or real lighting control implementation were used. Instead, the respondents could freely develop their own gesture commands. Altogether 197 gained responses are analysed. The results reveal that generally intuitive control gestures are difficult to generate as there is a rather strong variability in personal preferences. The most popular gestures in the user survey were used by 25–30% of the respondents, 19% of all user responses in the test were multimodal combinations of different gestures, verbal expressions and sounds.

scholarly journals Power-Aware Synchronization of a Software Defined Clock

2019 ◽  
Vol 8 (1) ◽  
pp. 11 ◽  
Author(s):  
Augusto Ciuffoletti
Keyword(s):  
Formal Model ◽  
Optimal Algorithm ◽  
Clock Synchronization ◽  
Low Cost ◽  
Time Coordinate ◽  
Clock Drift ◽  
Common Time ◽  
System A ◽  
Hardware Clock ◽  
And Control

In a distributed system, a common time reference allows each component to associate the same timestamp to events that occur simultaneously. It is a design option with benefits and drawbacks since it simplifies and makes more efficient a number of functions, but requires additional resources and control to keep component clocks synchronized. In this paper, we quantify how much power is spent to implement such a function, which helps to solve the dilemma in a system of low-power sensors. To find widely applicable results, the formal model used in our investigation is agnostic of the communication pattern that components use to synchronize their clocks, and focuses on the scheduling of clock synchronization operations needed to correct clock drift. This model helps us to discover that the dynamic calibration of clock drift significantly reduces power consumption. We derive an optimal algorithm to keep a software defined clock (SDCk) synchronized with the reference, and we find that its effectiveness is strongly influenced by hardware clock quality. To demonstrate the soundness of formal statements, we introduce a proof of concept. For its implementation, we privilege low-cost components and standard protocols, and we use it to find that the power needed to keep a clock within 200 ms from UTC (Universal Time Coordinate) as on the order of 10−5 W . The prototype is fully documented and reproducible.

Design of a Portable IPMC Actuator Tester

2013 ◽  
Vol 461 ◽  
pp. 347-351 ◽  
Author(s):  
Meng Zhang ◽  
Ming Yu ◽  
Qing Song He ◽  
Bao Lei Wang ◽  
Jie Ru ◽  
...  
Keyword(s):  
Control System ◽  
Low Voltage ◽  
Low Cost ◽  
Research Work ◽  
Testing System ◽  
Metal Composite ◽  
Main Research ◽  
System A ◽  
Polymer Metal ◽  
And Control

As a new intelligent material, IPMC (Ionic polymer-metal composite) can be driven under low voltage with large deformation, and has been widely used in biomedical and robotic systems. Traditional IPMC testing system is bulky, high cost, and inconvenient to use. In order to achieve the portability and convenience of the IPMC testing system, a small and low-cost IPMC tester was designed. The power supply and control system of the tester were integrated into an IPMC electrode clamp. The main research work included control system circuit design, electrode clamp and overall exterior design. The displacement measurement results showed that the design for the IPMC tester was correct and feasible.

Innovative control education using a low cost intelligent robot platform

Robotica ◽  
2003 ◽  
Vol 21 (3) ◽  
pp. 283-288 ◽  
Author(s):  
Wei Wang ◽  
Yan Zhuang ◽  
Wei-min Yun
Keyword(s):  
Intelligent Systems ◽  
Low Cost ◽  
Cost Effective ◽  
Technical Aspect ◽  
Intelligent Robot ◽  
Fast Development ◽  
Series Of Experiments ◽  
Control Education ◽  
And Control ◽  
Robot Platform

With the fast development of the control theory and engineering, robotics and artificial intelligence have become the focus in the field of intelligent systems. But research in this field is based on a series of experiments and requires various robot platforms which are often unaffordable by the universities in developing countries. The intention of this paper is to present the idea of applying innovative control education and building a laboratory using low cost equipments. In this paper the architecture and control system of a new kind of low cost intelligent robot, “Ability Storm”, is introduced. It not only shows the technical aspect, but also illustrates the related applications in control education. The versatility and effectiveness of this affordable intelligent robot platform are demonstrated through a number of experiments, including both basic laboratory experiments and other innovative project-oriented design, such as robot fire fighting, which clearly show the practicality and robustness of this cost-effective robot platform.

scholarly journals Study on Multiple Input Asymmetric Boost Converters with Simultaneous and Sequential Triggering

Electronics ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1421
Author(s):  
Juan-Gerardo Parada-Salado ◽  
Martín-Antonio Rodríguez-Licea ◽  
Allan-Giovanni Soriano-Sanchez ◽  
Omar-Fernando Ruíz-Martínez ◽  
Alejandro Espinosa-Calderon ◽  
...  
Keyword(s):  
Low Cost ◽  
Green Energy ◽  
Control Algorithms ◽  
Stable Operation ◽  
Voltage Step ◽  
Boost Converters ◽  
Multiple Input ◽  
And Control ◽  
Conduction Mode ◽  
Circulating Currents

Paralleled boost asymmetric configurations operating in discontinuous conduction mode (DCM) are suitable for integrating dissimilar green energy generating sources and control algorithms in versatile scenarios where voltage step-up, low cost, stable operation, low output ripple, uncomplicated design, and acceptable efficiency are needed. Unfortunately, research has mainly been conducted on the buck, sepic, switched-capacitor, among other asymmetric configurations operating in continuous conduction mode (CCM), to the authors’ knowledge. For asymmetric boost type topologies, achieving simultaneous CCM is not a trivial task, and other problems such as circulating currents arise. Research for interleaved converters cannot be easily extended to asymmetric boost topologies due to the dissimilarity of control algorithms and types of sources and parallel stages. This paper analytically establishes properties of stability, output ripple, output voltage, and design for asymmetrical paralleled boost converters operating in DCM with simultaneous or phase delayed (sequential) triggering. A 300 W experimental design and the respective tests allow validation of such properties, resulting in an easy-to-implement configuration with acceptable efficiency.

Design and Development of a Novel 2DOF Actuation Slosh Rig

2008 ◽  
Vol 131 (1) ◽  
Author(s):  
Prasanna S. Gandhi ◽  
Keyur B. Joshi ◽  
N. Ananthkrishnan
Keyword(s):  
Control Strategy ◽  
Liquid Fuel ◽  
Open Loop ◽  
Control Algorithms ◽  
Launch Vehicles ◽  
Lateral Direction ◽  
Identification Schemes ◽  
Ideal Tool ◽  
The Times ◽  
And Control

Sloshing of liquid in a tank is critical in several areas, including launch vehicles carrying liquid fuel, satellites, industrial packaging of liquids, systems handling molten metal, and so on. Hence modeling, characterization, and control of nonlinear slosh phenomena are important in these applications. To study slosh dynamics, develop useful identification schemes, and design and verify slosh control algorithms, a new 2DOF actuation slosh rig is reported in this paper considering the fact that most of the times these tanks are subjected to linear as well as pitching excitation/control inputs. The paper discusses mechatronic design and several advantages that the new design offers. A slosh phenomenon of beating observed when both lateral and pitching excitations are provided is simulated using a model based on pendulum approximation to slosh and is further verified in experiments. The results confirm that the effects of both excitations together can be detrimental against separate excitations of the same amplitude. Moreover, slosh compensation in open loop is demonstrated by giving excitation in pitching and developing a compensatory input in the lateral direction. Furthermore, active slosh control strategy is developed and its effectiveness is demonstrated with control in translation and disturbance in pitching. Thus the proposed rig is an ideal tool for the study, identification, and control development of slosh in the presence of two excitations/inputs.

Identificación de polaridad de los devanados en un motor trifásico de 6 terminales

2019 ◽  
pp. 13-19
Author(s):  
José Luis Viramontes-Reyna ◽  
Josafat Moreno-Silva ◽  
José Guadalupe Montelongo-Sierra ◽  
Erasmo Velazquez-Leyva
Keyword(s):  
Low Cost ◽  
Voltage Reference ◽  
Three Phase ◽  
Voltage Phase ◽  
The Law ◽  
And Control

This document presents the results obtained from the application of the law of Lens to correctly identify the polarity of the windings in a three-phase motor with 6 exposed terminals, when the corresponding labeling is not in any situation; Prior to identifying the polarity, it should be considered to have the pairs of the three windings located. For the polarity, it is proposed to feed with a voltage of 12 Vrms to one of the windings, which are identified randomly as W1 and W2, where W1 is connected to the voltage phase of 12 Vrms of the signal and W2 to the voltage reference to 0V; by means of voltage induction and considering the law of Lens, the remaining 4 terminals can be identified and labeled as V1, V2, U1 and U2. For this process a microcontroller and control elements with low cost are used.

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