Predictive Inverse Neurocontrol with Recycled Reference Trajectory

2015 ◽  
Vol 756 ◽  
pp. 585-591
Author(s):  
Konstantin V. Zmeu ◽  
Nikolay A. Markov ◽  
Boris S. Notkin ◽  
Ilya A. Shipitko
Keyword(s):  
Controller Synthesis ◽  
Reference Trajectory ◽  
Output Response ◽  
Control Quality ◽  
Prediction Horizon ◽  
Physical Plants

In this paper, the method of recycled reference trajectory for the plant output is considered within the main framework of the Predictive Inverse Neurocontrol (PIN) technique. The method allows to simplify the PIN controller synthesis and to improve the control quality of a PIN controller when operating with short prediction horizon . Moreover them it offers greater flexibility when choosing the desired of the plant's output response. The advantage of the proposed approach is illustrated by several examples of physical plants control.

A study on characteristics evaluation to control quality of asphalt mixture using X-ray CT

2014 ◽  
Vol 15 (4) ◽  
pp. 892-910 ◽  
Author(s):  
Satoshi Taniguchi ◽  
Jun Otani ◽  
Masayuki Kumagai
Keyword(s):  
Asphalt Mixture ◽  
X Ray ◽  
Control Quality

Analysis of Contractor Pay Adjustment Schedule Using Simulation

1996 ◽  
Vol 1544 (1) ◽  
pp. 109-115
Author(s):  
Robert P. Elliott ◽  
Yanjun Qiu
Keyword(s):  
Computer Simulation ◽  
Quality Control ◽  
Quality Assurance ◽  
Quality Index ◽  
Direct Analysis ◽  
Detailed Examination ◽  
Construction Contracts ◽  
Simulation Process ◽  
Control Quality

A common provision in quality control/quality assurance construction contracts is the adjustment of the contractor's pay on the basis of the quality of the construction. The expected impact of the provision on the pay should be examined to ensure that the adjustments are neither unduly severe nor excessively lenient. Most pay adjustment plans have been developed around a quality index by using a percent defective approach. Analyses of these plans are complex but reasonably well defined. Other plans, however, are more complex and do not lend themselves to direct analysis. These plans can be examined by computer simulation. The use of computer simulation to examine a complex pay adjustment provision is demonstrated. The analyses show that simulation can reveal that a pay adjustment schedule behaves differently than it appears on the surface. For example, the schedule examined bases pay solely on averages and appears to ignore construction variability. The analyses, however, demonstrate that the pay adjustments are at least as sensitive to construction variability as they are to construction averages. It is also shown that the simulation process can provide a better, more detailed examination of the pay schedule than is possible by simply determining the expected pay. In particular, the simulation process can provide an indication of the variability of pay at various quality levels and can identify the factors most responsible for pay adjustments.

scholarly journals Analytical Aspects of Distributed MPC Based on an Occupancy Grid for Mobile Robots

2020 ◽  
Vol 10 (3) ◽  
pp. 1007
Author(s):  
Tobias Sprodowski ◽  
Jürgen Pannek
Keyword(s):  
Sufficient Conditions ◽  
Distributed Model ◽  
Continuous Space ◽  
Occupancy Grid ◽  
Distributed Model Predictive Control ◽  
Prediction Horizon ◽  
Shared Space ◽  
Control Scheme ◽  
Street Traffic

In this paper, we evaluate theoretical aspects of a distributed system of noncooperative robots controlled by a distributed model predictive control scheme, which operates in a shared space. Here, for collision avoidance, the future predicted state trajectories are projected on a grid and exchanged via discrete cell indexes to reduce the communication burden. The predicted trajectories are obtained locally by each robot and carried out in the continuous space. Therefore, the quantisation does not impose the quality of the solution. We derive sufficient conditions to show convergence and practical stability for the distributed control system by using an idea of a temporary roundabout derived from crossing patterns of street traffic rules, which is established in a fixed and flexible circle size. Furthermore, a condition for the sufficient prediction horizon length to recognise necessary detours is presented, which is adapted for the occupancy grid. The theoretical results match with the trajectory patterns from former numerical simulations, showing that this pattern is naturally chosen as an overall solution.

scholarly journals e-Monitoring of Asthma Therapy to Improve Compliance in children (e-MATIC): a randomised controlled trial

2016 ◽  
Vol 48 (3) ◽  
pp. 758-767 ◽  
Author(s):  
Erwin C. Vasbinder ◽  
Lucas M.A. Goossens ◽  
Maureen P.M.H. Rutten-van Mölken ◽  
Brenda C.M. de Winter ◽  
Liset van Dijk ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Randomised Controlled Trial ◽  
Asthma Control ◽  
Controlled Trial ◽  
Intervention Group ◽  
Control Quality ◽  
Asthma Exacerbations ◽  
Sms Reminders ◽  
Randomised Controlled

Real-time medication monitoring (RTMM) is a promising tool for improving adherence to inhaled corticosteroids (ICS), but has not been sufficiently tested in children with asthma. We aimed to study the effects of RTMM with short message service (SMS) reminders on adherence to ICS, asthma control, asthma-specific quality of life and asthma exacerbation rate; and to study the associated cost-effectiveness.In a multicentre, randomised controlled trial, children (aged 4–11 years) using ICS were recruited from five outpatient clinics and were given an RTMM device for 12 months. The intervention group also received tailored SMS reminders, sent only when a dose was at risk of omission. Outcome measures were adherence to ICS (RTMM data), asthma control (childhood asthma control test questionnaire), quality of life (paediatric asthma quality of life questionnaire) and asthma exacerbations. Costs were calculated from a healthcare and societal perspective.We included 209 children. Mean adherence was higher in the intervention group: 69.3%versus57.3% (difference 12.0%, 95% CI 6.7%–17.7%). No differences were found for asthma control, quality of life or asthma exacerbations. Costs were higher in the intervention group, but this difference was not statistically significant.RTMM with tailored SMS reminders improved adherence to ICS, but not asthma control, quality of life or exacerbations in children using ICS for asthma.

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