Abstract: Fork head for gripping thin objects having a main frame attached to a mobile element on a lifting vehicle; a mobile frame, with two fixed, parallel arms and a gripping arm that moves from and towards the fork arms to trap a thin object hanging between the two fork arms, said mobile frame being able to move horizontally along a transversal guide attached to the main frame; wherein the gripping arm has end portions superimposed on the two arms of the frame and has a length (L) in a transversal direction equal to or greater than a fork width (w) defined by the distance between the opposite outer edges of the two fork arms.

Abstract: Fork head for gripping thin objects having a main frame attached to a mobile element on a lifting vehicle; a mobile frame, with two fixed, parallel arms and a gripping arm that moves from and towards the fork arms to trap a thin object hanging between the two fork arms, said mobile frame being able to move horizontally along a transversal guide attached to the main frame; wherein the gripping arm has end portions superimposed on the two arms of the frame and has a length (L) in a transversal direction equal to or greater than a fork width (w) defined by the distance between the opposite outer edges of the two fork arms.

Abstract: System and method for controlling a photovoltaic installation (1), comprising a plurality of solar trackers (8), comprising a plurality of PV panels (9), rotatable around a rotation axis (5), arranged in several parallel rows at a given distance. Each solar tracker (8) has two antennas (2, 3) and at least one tracker controller. An external control unit (4) is connected to the solar trackers (8) of a central head-tracker row (20), which then communicates through a wireless bidirectional network (7), with the sub-tracker rows (30) using only one of the antennas (2, 3). A processing unit in each tracker controller executes an algorithm to determine which antenna (2, 3) is in an optimal position to transmit data or receive orders, requiring data of at least: an angular position and a strength and quality measurement of a radiofrequency signal, of each antenna for each solar tracker (8).

Abstract: A method for reducing shading in a photovoltaic plant, said photovoltaic plant includes a plurality of solar trackers, made up of one or more photovoltaic panels, arranged in adjacent parallel rows at a given predetermined distance; an actuator, controlled by a tracker controller, which enables each solar tracker to rotate independently regarding the other solar trackers of the row around said North-South axis; and a control system which includes a communication network enabling a bidirectional communication between each tracker controller and a central control unit which controls the photovoltaic plant. The method uses an algorithm executed by a processor of the central control unit, which determines a tilt angle (?) for each solar tracker in each row inputted in the algorithm, using constant and variable data of each solar tracker, and by selecting either a first (“Morning”) or a second configuration (“Afternoon”).

Abstract: The collector/concentrator includes a primary concave reflector (1) supported on a base body (3) obtained by injection moulding, which defines a central support (5) supporting a region around a central opening (6) of the primary reflector (1), a plurality of peripheral legs (7) supporting respective peripheral regions of the primary reflector (1) and first integral connection members (8) connecting said peripheral legs (7) with the central support (5). The peripheral legs (7) have bottom ends (7a) leaning on a substantially flat supporting surface and top ends (7b) located above the peripheral regions of the primary reflector (1) that are in contact with a substantially flat transparent panel (15) supporting a secondary convex reflector (2) that concentrates the solar radiation reflected by the primary reflector (1) towards a receiver unit (18) through the central opening (6).

Abstract: The invention includes a fixed platform bearing a circular rail, supporting rolling elements to which is attached a mobile frame with a sloping structure which holds a number of solar panels, grouped in rows, the panels of each row being connected to corresponding support shafts, supported on the sloping structure, and a device for moving the frame and shafts in accordance with a predetermined configuration. The frame includes a base with attached thereto the rolling elements and the sloping structure is raised above the base, at a distance from the fixed platform and formed by two supporting beams that delimit an oblique plane and are separated from each other by a distance greater than the diameter of the rail.