Building management system with BACnet broadcast management (BBMD) device
US10904030B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2019 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/149
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A building automation system includes a plurality of subnets, an active broadcast management device configured on at least one of the subnets, a pool of virtual devices communicably connected to the active broadcast management device, each of the virtual devices in the pool of virtual devices configured to store a broadcast distribution table (BDT), one or more processors, and memory coupled to the one or more processors and storing instructions. When executed by the one or more processors, the instructions cause the one or more processors to transmit a health status message to each available virtual device in the pool of virtual devices, receive a health status response from each of the available virtual devices, and select, according to the health status responses, at least one of the virtual devices from among the available virtual devices as a backup virtual broadcast management device to the active broadcast management device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.