System for power distribution and communication

摘要

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.

主权项

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.