US 12,435,897 B2
System and method for acquisition and storage of data from a BACnet standard HVAC system
Pierre Paquette, Québec (CA)
Assigned to STRATO AUTOMATION INC., Montréal (CA)
Appl. No. 17/759,751
Filed by STRATO AUTOMATION INC., Québec (CA)
PCT Filed Jan. 29, 2021, PCT No. PCT/CA2021/050105
§ 371(c)(1), (2) Date Jul. 29, 2022,
PCT Pub. No. WO2021/151210, PCT Pub. Date Aug. 5, 2021.
Claims priority of provisional application 62/968,658, filed on Jan. 31, 2020.
Prior Publication US 2023/0062090 A1, Mar. 2, 2023
Int. Cl. F24F 11/58 (2018.01); F24F 11/46 (2018.01); F24F 11/54 (2018.01); F24F 11/64 (2018.01); G05B 19/042 (2006.01); H04L 67/1095 (2022.01); H04L 67/12 (2022.01)
CPC F24F 11/58 (2018.01) [F24F 11/46 (2018.01); F24F 11/54 (2018.01); F24F 11/64 (2018.01); G05B 19/042 (2013.01); H04L 67/1095 (2013.01); G05B 2219/2614 (2013.01); H04L 67/12 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A system for acquisition and storage of data relative to Building Automation Control Network (BACnet) objects of a BACnet standard Heating, Ventilation, and Air Conditioning (HVAC) system, the system comprising:
the BACnet HVAC system including at least one controller and the BACnet objects each generating data relative to a data change upon each occurrence of a change in a value thereof or after a time threshold is reached without occurrence of a change in a value thereof, the BACnet objects each being connected to a corresponding one of the at least one controller and each transmitting the data relative to the data change every time a change occurs in the value thereof or after the time threshold is reached without occurrence of a change in the value thereof, the BACnet HVAC system having a BACnet network and the at least one controller being configured to concatenate the data relative to the data changes of the BACnet objects into payloads encapsulated into system specific data packets conforming to the BACnet data packet standards and transmitted over the BACnet network;
a data conversion unit in data communication with the BACnet HVAC system over the BACnet network and receiving the system specific data packets, the data conversion unit being configured to retrieve the data relative to the data changes of the BACnet objects from the received system specific data packets and to generate database write commands including the data relative to the data changes of the BACnet objects acquired from the system specific data packets; and
a main data acquisition database in data communication with the data conversion unit and receiving the database write commands therefrom, the main data acquisition database storing the data relative to all data changes of the BACnet objects, with predetermined time periods without occurrence of a change in the value of the corresponding one of the BACnet objects being treated as a data change.