Modular control system simulator

Article Abstract:

In this paper, we introduce a modular control system simulator for positioning servo applications. The program package was originally written for elevator car positioning simulations, but because of its straightforward modular structure it can easily be tailored for other types of applications as well. The simulator contains all the necessary functions needed to design an appropriate positioning servo when an estimate of the system model is known. The numerical system model is assumed to be a rational z-domain transfer function and it can be identified a priori from measured excitation and response signals by using some prediction error type algorithm. Although all the internal computations are performed using floating-point numbers, the simulator has built-in A/D and D/A converters to quantize the input and output sequences artificially. The simulator also has a programmable noise generator to generate additive measurement error to the simulated feed-back signal. The control and noise-filtering algorithms can be changed by replacing the existing modules with user-written FORTRAN subroutines. All the data transfers between individual modules are well defined to ensure easy modifiability of the overall system. The simulation software runs in a desktop personal computer. (Reprinted by permission of the publisher.)

Systems analysis, Industrial research, Mathematical models, Servomechanisms, Control systems, Research and Development, System Design, Modularity, Software architectures, Interactive Systems, Discrete Simulation, Simulation of Computer Systems, technical

---

A simplified mathematical model for an onboard maneuvering simulator

Article Abstract:

This paper suggests the development of an onboard maneuvering simulator for ship control. The simulator employs a simplified mathematical model and a set of realistic expectations of ship behavior drawn from seagoing expertise and full scale tests. It predicts the result of imminent maneuvers. The onboard simulator gives ship's officers a chance for self training in real-time conditions, steering the ship. For instance, high-speed prediction of ship motion in a channel, displayed in a suitable form, including pertinent advices such as rules of the road, is expected to help operators anticipate the results of maneuvering decisions and prevent wrong decisions. The suggested model for an onboard simulator makes use of sensors for continuous updating of real-time input, and also includes an on-line system-identification processor by which the mathematical model would be successively adjusted to a changing environment. A simplified mathematical model of the simulator is presented. The block diagrams and the research efforts presented are the research guidelines of the Instituto Universitario Navale at Naples, Italy, for designing an onboard maneuvering simulator for ship control.

Education, Philosophy, Real time systems, Real-Time System, Decision Making

---

Similar abstracts:

• Abstracts: "Molecular frontier" study sets path forward for all chemical sciences. Q&A
• Abstracts: Parallelization of an event driven simulator for computer systems simulation. Solartron Introduces New Marine Radar Simulator
• Abstracts: Developing Generalized Reactor Modules for a Process Simulator. part 2 Generic error control coding modules
• Abstracts: Adaptive Perturbation Control with Feedforward Compensation for Robot Manipulators. Simulation analysis of dynamics and decentralized control of robot manipulators

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.