US 2019/0158314 A1 · NODE MANAGEMENT GATEWAY DEVICE IN DISTRIBUTION NETWORK AND GRID NETWORK AND METHOD THEREOF

Abstract

A distribution network system having a plurality of nodes using a scheme for data-centric object-oriented communication (DDS) effectively manages the frequently occurring connections for each node and the real-time addition or deletion of a node. Each node includes a gateway connected to a Wide Area Network (WAN) and configured to transmit and receive a message using a Real-Time Publish-Subscribe (RTPS) protocol that applies simple tunneling to communicate as if all nodes communicate in a Local Area Network (LAN), and to insert magic information into a header of the message, the inserted magic information including source IP information of the message, destination IP information of the message, and destination User Datagram Protocol (UDP) information of the message.

Claims16

Dependent claims

A node management gateway device included in a node using a scheme for data-centric object-oriented communication and configured to communicate with other gateway devices connected to a Wide Area Network (WAN), the node management gateway device comprising:

a Real-Time Publish-Subscribe (RTPS) processing unit for transmitting and receiving a message with the other gateway devices using an RTPS protocol of the data-centric object-oriented communication and for inserting magic information into a header of the received message in order to transmit the received message to the WAN, the inserted magic information including source IP information of the message, destination IP information of the message, and destination User Datagram Protocol (UDP) information of the message;
and
a network connection unit for performing an operation of the RTPS processing unit by executing a network connection with each of the other gateway devices.

A method of managing a node of a gateway device connected to a destination device and is configured to communicate with a source gateway device connected to a source device through a Wide Area Network (WAN), the method comprising:

the gateway device receiving a message having IP information from the destination device;
the gateway device converting the IP information in the received message into actual network IP information to store the converted IP information in a virtual subnet mapping table;
the gateway device transmitting the message having the actual network IP information to the WAN;
the gateway device receiving a reply message from the WAN;
the gateway device converting the actual network IP information into the IP information originally based on the virtual subnet mapping table in the received reply message;
and
the gateway device delivering the reply message that the actual network IP information is converted into the IP information originally to the destination device.

4 more elements

Dependencies are inferred from the claim text.

Node management gateway device in distribution network and grid network and method thereof

Life of this patent

Node management gateway device in distribution network and grid network and method thereof

Life of this patent

Abstract

Claims16