André Bittencourt Leal

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This paper deals with the implementation of supervisory control of discrete event systems into Programmable Logic Controllers (PLCs). It discusses the problems that arise in this type of implementation and presents an implementation methodology that solves these problems. The local modular approach is used to synthesize the supervisors and a case study(More)
Developing and implementing control logic for automated manufacturing systems is not a trivial task. Industrial production lines should be able to produce many types of products that go through a growing number of processes given the needs of the market, and there is an ever growing flexibility demand because of it. To keep up with it a faster way to(More)
This paper presents an application of the supervisory control theory in the development of control logics for refrigerators. A structure containing a Peltier Mini-Refrigerator controlled by an electronic circuit was developed, aiming to create and validate different control strategies that will be implemented in household and commercial refrigerators. The(More)
When there is the need of a robotic manipulator to follow a certain smooth and continuous trajectory, it involves the specification of the curve to be followed and the way the gripper should behave alongside it. This work aims to identify and analyze a technique to be used in a 3D virtual robotic simulator that executes smooth and continuous movements. It(More)
This paper presents an implementation of IEEE 802.15.4 MAC Layer of ZigBee protocol in order to monitor and control home appliances. This standard is applied to a communication protocol with small data packets, low transmission rate, and low energy consumption. The paper shows the development of a hardware and software prototype to monitor, control and(More)
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