Abstract: A system for power distribution and communication over a two-wire network comprises a control unit (dedicated or distributed) configured to receive power from the two-wire network and provided with a transceiver circuitry connected to the two-wire network, a power converter unit having a power converter which converts incoming voltage to a DC-voltage of less than 50 V and feeds the DC-voltage to the two-wire network, and a power fuse unit with a power fuse identity connected between the power converter and the two-wire network. The power fuse unit forwards the DC-voltage to the two-wire network and comprises a transceiver circuitry connected to the two-wire network and a fuse. The system monitors an amount of power consumed in the network and activates a power switch in the power fuse unit when the amount of power consumed in the two-wire network exceeds predetermined limits.

Abstract: The present invention relates to a method for controlling communication in a network comprising a plurality of interconnected network nodes, each network node comprises a processor and a memory in which a unique identity is stored; a sensor having at least two states; and an actuator performing functions in response to received signals. The method forming a relationship between a primary network node to which a first sensor is connected and at least one secondary network node to which one or more actuators are connected to establish a link there between. The primary and secondary network nodes are one of the plurality of interconnected network nodes; storing information of the link in the memory of each secondary network node; and controlling the one or more actuators.

Abstract: A household system (1), which includes a first cooling unit (10) that is configured to be connectable to a heat/energy reservoir (30) via a first peltier system (11), and a heating unit (20) that is configured to be connectable to the heat/energy reservoir (30) via a second peltier system (21), where the first peltier system (11) is configured for transferring heat/energy between the cooling unit (10) and the energy reservoir (30), and the second peltier system (21) is configured for transferring energy between the heat reservoir (30) and the heating unit (20).