Sun follower with parallel kinematics and process for controlling such follower

Il brevetto riguarda un inseguitore solare a cinematica parallela e il relativo sistema di controllo

PARALLEL MECHANISM FOR PRECISION SUN TRACKING

The paper describes a 2-DOF parallel kinematic machine designed to achieve precise solar tracking. The mechanism has been developed keeping in mind that solar concentration technology requires a precise alignment of photovoltaic modules and sun radiation, with error allowance much lower than those ensured by traditional sun trackers. The paper describes the kinematic structure and discusses its forward and inverse kinematic, providing the tools to design a system that satisfies the requirements for dexterity and workspac

Developing a parallel kinematic suntracker for HCPV

The paper describes a new kind of sun tracker intended to satisfy the precision requirements of high concentration photovoltaic systems. The tracker is designed according to a Delta type parallel kinematic schematics. The paper describes the kinematic schematics, the sensor chain and the control algorithm. Finally the results obtained in functional tests are shown

Advanced vision approach applied to non-contact micro-measurements: a practical application

In micro-world applications usually the need to manipulate, handle and measure micro-components becomes an important issue both for production and research reasons. Pointing out the aspect of measurements, the specific contest considerably conditions the technical approach and practical procedure which can be efficiently applied to obtain a reliable and precise measure. The framework of this research concerns the production phase of micro-biomedical components characterized by very small dimensions, high deformability, and sensitivity of surface damage. The main focus has dealt with the definition of an optical procedure to orient and assemble micro-elements. The compromise between the production cadence and the measurement necessity has been one of the main requirements for the research in order to define, implement, and evaluate an ad hoc process to get the expected outcomes. The proposed procedure allows to solve a practical issue by combining a solid vision background to a technical contest solving the specific measuring task and applying the same approach to different practical applications, both in micro and macro worl