Wireless-Integrated Embedded Real-Time Control: A Case Study in Adopting Resources for Development of a Low-Cost Interdisciplinary Laboratory Project

This paper presents results from an application of a newly developed simulation tool for pollution based real time control (PBRTC) of urban drainage systems. The Oslo interceptor tunnel is used as a case study. The paper focuses on the reduction of total phosphorus Ptot and ammonia-nitrogen NH4-N overflow loads into the receiving waters by means of optimized operation of the tunnel system. With PBRTC the total reduction of the Ptot load is 48% and of the NH4-N load 51%. Compared to the volume based RTC scenario the reductions are 11% and 15%, respectively. These further reductions could be achieved with a relatively simple extension of the operation strategy.

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An integrated continuous downstream process with real‐time control: A case study with periodic countercurrent chromatography and continuous virus inactivation

Biotechnology and Bioengineering ◽

10.1002/bit.27681 ◽

2021 ◽

Author(s):

Anton Löfgren ◽

Joaquín Gomis‐Fons ◽

Niklas Andersson ◽

Bernt Nilsson ◽

Lotta Berghard ◽

...

Keyword(s):

Real Time ◽

Countercurrent Chromatography ◽

Virus Inactivation ◽

Downstream Process ◽

Real Time Control ◽

Time Control

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Integrative Modeling Platform for Design and Control of an Adaptive Wind Turbine Blade

Volume 2: Control and Optimization of Connected and Automated Ground Vehicles; Dynamic Systems and Control Education; Dynamics and Control of Renewable Energy Systems; Energy Harvesting; Energy Systems; Estimation and Identification; Intelligent Transportation and Vehicles; Manufacturing; Mechatronics; Modeling and Control of IC Engines and Aftertreatment Systems; Modeling and Control of IC Engines and Powertrain Systems; Modeling and Management of Power Systems ◽

10.1115/dscc2018-9235 ◽

2018 ◽

Author(s):

Hamid Khakpour Nejadkhaki ◽

John F. Hall ◽

Minghui Zheng ◽

Teng Wu

Keyword(s):

Simulation Model ◽

Wind Turbine ◽

Real Time ◽

Turbine Blade ◽

Design Tool ◽

Real Time Control ◽

Time Control ◽

Partial Load ◽

And Control

A platform for the engineering design, performance, and control of an adaptive wind turbine blade is presented. This environment includes a simulation model, integrative design tool, and control framework. The authors are currently developing a novel blade with an adaptive twist angle distribution (TAD). The TAD influences the aerodynamic loads and thus, system dynamics. The modeling platform facilitates the use of an integrative design tool that establishes the TAD in relation to wind speed. The outcome of this design enables the transformation of the TAD during operation. Still, a robust control method is required to realize the benefits of the adaptive TAD. Moreover, simulation of the TAD is computationally expensive. It also requires a unique approach for both partial and full-load operation. A framework is currently being developed to relate the TAD to the wind turbine and its components. Understanding the relationship between the TAD and the dynamic system is crucial in the establishment of real-time control. This capability is necessary to improve wind capture and reduce system loads. In the current state of development, the platform is capable of maximizing wind capture during partial-load operation. However, the control tasks related to Region 3 and load mitigation are more complex. Our framework will require high-fidelity modeling and reduced-order models that support real-time control. The paper outlines the components of this framework that is being developed. The proposed platform will facilitate expansion and the use of these required modeling techniques. A case study of a 20 kW system is presented based upon the partial-load operation. The study demonstrates how the platform is used to design and control the blade. A low-dimensional aerodynamic model characterizes the blade performance. This interacts with the simulation model to predict the power production. The design tool establishes actuator locations and stiffness properties required for the blade shape to achieve a range of TAD configurations. A supervisory control model is implemented and used to demonstrate how the simulation model blade performs in the case study.

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A Low Cost Fault-Tolerant Multiprocessor System for Real-Time Control

IFAC Proceedings Volumes ◽

10.1016/s1474-6670(17)59525-7 ◽

1986 ◽

Vol 19 (13) ◽

pp. 113-117

Author(s):

J.J. Serrano ◽

C. Cebrián ◽

J. Vila ◽

R. Ors

Keyword(s):

Real Time ◽

Fault Tolerant ◽

Low Cost ◽

Multiprocessor System ◽

Real Time Control ◽

Time Control

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Translation + Pendaphonics = Movement Modulated Media

Leonardo ◽

10.1162/leon_a_00406 ◽

2012 ◽

Vol 45 (4) ◽

pp. 322-329 ◽

Cited By ~ 1

Author(s):

Byron Lahey ◽

Winslow Burleson ◽

Elizabeth Streb

Keyword(s):

High Resolution ◽

Real Time ◽

Low Cost ◽

Vertical Wall ◽

State University ◽

Arizona State University ◽

Motion Sensing ◽

Real Time Control ◽

Projected Image ◽

Time Control

Translation is a multimedia dance performed on a vertical wall filled with the projected image of a lunar surface. Pendaphonics is a low-cost, versatile, and robust motion-sensing hardware-software system integrated with the rigging of Translation to detect the dancers' motion and provide real-time control of the virtual moonscape. Replacing remotely triggered manual cues with high-resolution, real-time control by the performers expands the expressive range and ensures synchronization of feedback with the performers' movements. This project is the first application of an ongoing collaboration between the Motivational Environments Research Group at Arizona State University (ASU) and STREB Extreme Action Company.

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Evaluation of a Low-Cost Microcontroller for Real-Time Control Education and Prototyping

Volume 1: Active Control of Aerospace Structure; Motion Control; Aerospace Control; Assistive Robotic Systems; Bio-Inspired Systems; Biomedical/Bioengineering Applications; Building Energy Systems; Condition Based Monitoring; Control Design for Drilling Automation; Control of Ground Vehicles, Manipulators, Mechatronic Systems; Controls for Manufacturing; Distributed Control; Dynamic Modeling for Vehicle Systems; Dynamics and Control of Mobile and Locomotion Robots; Electrochemical Energy Systems ◽

10.1115/dscc2014-5846 ◽

2014 ◽

Cited By ~ 3

Author(s):

Ryan W. Krauss

Keyword(s):

Feedback Control ◽

Real Time ◽

Closed Loop ◽

Low Cost ◽

Serial Communication ◽

Real Time Control ◽

Time Control ◽

Active User ◽

Bode Plots ◽

Control Education

Arduino microcontrollers are popular, low-cost, easy-to-program, and have an active user community. This paper seeks to quantitatively assess whether or not Arduinos are a good fit for real-time feedback control experiments and controls education. Bode plots and serial echo tests are used to assess the use of Arduinos in two scenarios: a prototyping mode that involves bidirectional real-time serial communication with a PC and a hybrid mode that streams data in real-time over serial. The closed-loop performance with the Arduino is comparable to that of another more complicated and more expensive microcontroller for the plant considered. Some practical tips on using an Arduino for real-time feedback control are also given.

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Quick and accurate Cellular Automata sewer simulator

Journal of Hydroinformatics ◽

10.2166/hydro.2014.070 ◽

2014 ◽

Vol 16 (6) ◽

pp. 1359-1374 ◽

Cited By ~ 8

Author(s):

Rebecca J. Austin ◽

Albert S. Chen ◽

Dragan A. Savić ◽

Slobodan Djordjević

Keyword(s):

Cellular Automata ◽

Real Time ◽

Flow Conditions ◽

Computationally Efficient ◽

Real Time Control ◽

Time Control ◽

Ca Model ◽

Control Of Networks ◽

Expensive Model

As urbanisation and climate change progress, the frequency of flooding will increase. Each flood event causes damage to infrastructure and the environment. It is thus important to minimise the damage caused, which can be done through planning for events, real-time control of networks and risk management. To perform these actions, many different simulations of network behaviour are required involving complex and computationally expensive model runs. This makes fast (i.e. real-time or repetitive) simulations very difficult to carry out using traditional methods, thus there is a requirement to develop computationally efficient and accurate conceptual sewer simulators. A new Cellular Automata (CA) based sewer model is presented which is both fast and accurate. The CA model is Lagrangian in nature in that it represents the flow as blocks, and movement of the blocks through the system is simulated. To determine the number of blocks which should be moved it uses either the Manning's or Hazen–Williams equation depending on the flow conditions to calculate the permitted discharge. A case study of the sewer network in Keighley, Yorkshire, is carried out showing its performance in comparison to traditional sewer simulators. The benchmarks used to verify the results are SIPSON and SWMM5.

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Design of Process Controller Based on PCI Interface and CPLD Technology

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.614-615.1562 ◽

2012 ◽

Vol 614-615 ◽

pp. 1562-1565

Author(s):

Yu Sen Li ◽

Ying Sun

Keyword(s):

Real Time ◽

High Speed ◽

Low Cost ◽

Pulse Signal ◽

Pci Bus ◽

Signal Acquisition ◽

Real Time Control ◽

Time Control ◽

Interface Chip ◽

Design Ideas

In order to realize the sensor signal acquisition and analysis of data, according to data acquisition system design ideas of the PCI bus, applying to CPLD complex programmable controller and CH365 interface chip and combined with the actual needs of data collection ,designed a kind of low cost, high speed process controller. CPLD realizes data cache control and the control of reading. This design can gather 16 roads analog signals and real-time pulse signal of 8 roads on the same time, which includes a 16-bit digital output channel and a 32-bit counter, could be used in the real-time control.

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