System including at least one master unit and a plurality of slave units, wherein the at least one master unit includes means for transmitting control signals to the slave units via radio frequency channels. The slave units are provided with unique addresses and are each associated with a controllable device. The at least one master unit includes means for configuring the slave units that are addressable by the master unit in a number of sectors. The master unit is further designed in such a manner that when a slave unit is allocated to a sector, one or more further slave units may automatically be allocated to the same sector in dependence on properties related to the slave units.
A solar collector with a rectangular frame (1), preferably made of extruded or rollformed metal, containing an absorber plate (3), an insulating layer (2) beneath the absorber plate (3), and a cover pane (4) spaced above the absorber (3). Absorber tubing (3b.3c) is attached to the rear side of the absorber plate. The absorber (3) is secured to the frame (1) by mounting brackets (11a,11b) that engage the absorber tubing (3b,3c) and allow for substantially unhindered thermal expansion and contraction of the absorber. The collector can be integrated or roof mounted on a pitched roof, or may be installed on a flat roof by means of a mounting frame.
System and method for controlling at least one device (2, 3) such as for example an operator for a door, a gate, a window, blinds, shutters, a curtain, an awning or a light source. The system includes at least one controllable unit (10, 14) associated with the at least one device and a plurality of nodes (12, 16, 19, 20, 22) for transmitting control signals to the at least one controllable unit (10, 14). At least one of the plurality of nodes (12, 16, 19, 20, 22) for transmitting control signals are configured for transmitting a command originator, the command originator including an identification of a predetermined type of the node (12, 16, 19, 20, 22), from which the signal originates.
System having at least one master unit and a plurality of slave units, the master unit and the slave unit including means for performing communication via radio frequency channels. The at least one master unit includes means for transmitting control signals to the slave units, the slave units each being provided with a unique address and each being associated with a controllable device. The at least one master unit includes means for configuring the slave units addressable by the master unit in a number of sectors, and the master unit has further means for allocating predefined identifications to the slave units. Further, the master unit has display means, by means of which the predefined identifications may be displayed.
System and method for controlling at least one device such as for example an operator for a door, a gate, a window, blinds, shutters, a curtain, an awning or a light source including a controllable unit associated with the at least one device and a plurality of nodes for transmitting control signals to the at least one controllable unit. At least one of the control signals includes priority setting indications relating to at least one of a plurality of levels. At least one controllable unit comprises means for registering the priority indications and for storing a corresponding entry relating to the plurality of command levels. Further, the controllable unit includes means for performing an evaluation based on the stored entries.