Patent ID: 9054552
Filing Date: 2015-06-09
Classification: H02J,H04B,Y02B,Y04S

Abstract:
1. A system for power distribution and communication over a two-wire network, said system comprising: a control unit configured to receive power from said two-wire network and provided with a transceiver circuitry connected to said two-wire network, a power converter unit comprising a power converter configured to convert at least one incoming voltage to a predetermined DC-voltage of less than 50 V and to feed said DC-voltage to said two-wire network, and a plurality of nodes connected to and receiving power from said two-wire network; wherein said power converter unit further comprises: a power fuse unit with a unique identity connected between said power converter and said network, wherein said power fuse unit is configured to forward said DC-voltage to the network, a transceiver circuitry connected to said network, and a power switch configured to terminate forwarding of said DC-voltage to the network when activated, wherein said control unit is a dedicated control unit comprising a microprocessor and a memory in which the unique identity of the power fuse unit is stored, and is configured to communicate with any unit connected to said two-wire network and having a unique known identity stored in said memory; wherein each of said plurality of nodes comprises a transceiver circuitry connected to said two-wire network and is configured with a unique known identity enabling control of a function of the node, said unique identity is stored in said memory, at least one of said plurality of nodes is configured as a sensor node and at least one of said plurality of nodes is configured as an actuator node, wherein each sensor node is defined as an entity having at least two states and each sensor node is associated with and controls at least one actuator node in response to a current state of the associated sensor node, and the association between each sensor node and the at least one actuator node is stored in the memory; and wherein said dedicated control unit is configured to monitor an amount of power consumed in the network and is further configured to communicate with the power fuse unit over said two-wire network to activate the power switch when the amount of power consumed in the network exceeds predetermined limits.