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公开(公告)号：US10904030B2
公开(公告)日：2021-01-26
申请号：US16366020
申请日：2019-03-27
Applicant: Johnson Controls Technology Company
Inventor： Japneet Singh , Ishmeet Bhatia , Manu Garg , Vikas Sharma
IPC: G06F15/177 , H04L12/28 , H04L12/24 , H04L12/403
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.
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公开(公告)号：US20200313925A1
公开(公告)日：2020-10-01
申请号：US16366020
申请日：2019-03-27
Applicant: Johnson Controls Technology Company
Inventor： Japneet Singh , Ishmeet Bhatia , Manu Garg , Vikas Sharma
IPC: H04L12/28 , H04L12/403 , H04L12/24
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.
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公开(公告)号：US11368493B2
公开(公告)日：2022-06-21
申请号：US17061860
申请日：2020-10-02
Applicant: Johnson Controls Technology Company
Inventor： Kraig D. Ritmanich , Brandon A. Sloat , Japneet Singh
IPC: H04L29/06 , H04L9/40 , H04L69/18 , H04L41/082 , H04L12/28
Abstract: A building system includes heating ventilation or air conditioning (HVAC) devices configured for communication on a building automation network and a communication engine. The communication engine is configured to provide a diagnostic attribute. The diagnostic attribute indicates communications with the HVAC devices as being according to a first communication protocol or at least one different communication protocol. Systems and methods may detect insecure communications and/or upgrade in secure communication protocols in wireless or wired networks, such as, BACnet systems and/or subsystems.
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公开(公告)号：US20220109697A1
公开(公告)日：2022-04-07
申请号：US17061860
申请日：2020-10-02
Applicant: Johnson Controls Technology Company
Inventor： Kraig D. Ritmanich , Brandon A. Sloat , Japneet Singh
Abstract: A building system includes heating ventilation or air conditioning (HVAC) devices configured for communication on a building automation network and a communication engine. The communication engine is configured to provide a diagnostic attribute. The diagnostic attribute indicates communications with the HVAC devices as being according to a first communication protocol or at least one different communication protocol. Systems and methods may detect insecure communications and/or upgrade in secure communication protocols in wireless or wired networks, such as, BACnet systems and/or subsystems
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