MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202621015530 A) filed by Dhruv Amitbhai Shah, Vadodara, Gujarat, on Feb. 12, for 'integrated bacnet-poe gateway architecture for unified smart building energy management across legacy and modern control networks.'

Inventor(s) include Dhruv Amitbhai Shah.

The application for the patent was published on May 1, under issue no. 18/2026.

According to the abstract released by the Intellectual Property India: "The present invention relates to an integrated gateway architecture that bridges legacy Building Automation and Control network (BACnet) based HVAC systems with modern Power over Ethernet (PoE) based lighting and sensor systems to enable unified smart building energy management. The system comprises a hardware gateway device with dual network interfaces connecting to both BACnet MS/TP and BACnet/IP legacy networks and PoE-enabled IP/Ethernet modern networks. The gateway incorporates a protocol translation engine performing real-time bidirectional conversion between BACnet services and PoE/IP commands, a unified data model mapping BACnet objects to PoE endpoints with cross-domain spatial and functional relationship links, a cross-domain policy engine executing coordinated energy optimization rules spanning HVAC and lighting domains, and an energy analytics engine generating holistic building energy performance metrics. The present invention ensures that building operators can achieve significant energy savings through cross-domain optimization strategies such as occupancy-responsive zone management, daylight-correlated HVAC and lighting coordination, and unified demand response participation, all from a single converged platform operating autonomously at the network edge without requiring replacement of existing legacy building automation infrastructure."

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