The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2025
Filed:
Mar. 31, 2022
Siemens Schweiz Ag, Zürich, CH;
Bernhard Isler, Wilen b. Wollerau, CH;
Kai Rohrbacher, Hünenberg, CH;
SIEMENS SCHWEIZ AG, Zurich, CH;
Abstract
Various teachings include methods and/or BACnet network systems to extend BACnet network systems for building automation systems to scale up to large topologies. The BACnet network system comprises a network of BACnet devices organized as a virtual hub-and-spoke network. One of the BACnet devices is implemented as a directed hub-device to which all other BACnet devices are connected as node-devices by using WebSocket connections. The directed hub-device is configured to limit the broadcast distribution of broadcast messages from a downlink-connection to each uplink-connection, and not to any other downlink-connection. The directed hub-device is configured to block or forward unicast messages from one downlink-connection to another downlink-connection.