Building automation system data management

• US 20070055760A1
• Filed: 12/22/2005
• Published: 03/08/2007
• Est. Priority Date: 08/22/2005
• Status: Active Grant

• Current Assignee: Trane International Inc. (Trane Technologies plc)
• Original Assignee: Trane International Inc. (Trane Technologies plc)
• Inventors: Richards, David, McCoy, Sean
• Granted Patent: US 7,917,232 B2
• Time in Patent Office: Days
• US Class Current: 709/223
• CPC Class Codes: H04L 41/0233 Object-oriented techniques, for representation of network management data, e.g. common object request broker architecture [CORBA]
• CPC Class Codes: H04L 41/069 using logs of notifications; Post-processing of notifications
• CPC Class Codes: H04L 41/0886 Fully automatic configuration
• CPC Class Codes: H04L 41/22 comprising specially adapted graphical user interfaces [GUI]

Abstract

A building automation system (BAS) comprising a plurality of end devices, at least one communication network, a protocol-independent server engine, and a graphical user interface (GUI). The end devices are each associated with at least one of a space, a system, or a subsystem for at least a portion of a building or a campus. The communication network supports a plurality of communication protocols and communicatively couples at least a portion of the plurality of end devices. The server engine is communicatively coupled to the at least one communication network and, in one embodiment, is adapted to selectively implement the dynamic extensibility capability to establish communications with, to receive and store data about, and to control the end devices and to selectively implement the automatic configuration capability to determine at least one characteristic of each of the end devices, wherein the at least one characteristic comprises a communication protocol compatible with the end device

Claims

1. A building automation system (BAS) comprising:

a plurality of end devices each associated with at least one of a space, a system, or a subsystem for at least a portion of a building or a campus;

a communication network communicatively coupling the plurality of end devices and having a dynamic extensibility capability and an automatic configuration capability;

a protocol-independent server engine communicatively coupled to the communication network and adapted to selectively implement the dynamic extensibility capability to establish communications with, to receive and store data about, and to control the end devices and to selectively implement the automatic configuration capability to determine at least one characteristic of each of the end devices, wherein the at least one characteristic comprises a communication protocol compatible with the end device; and

a graphical user interface (GUI) communicatively coupled to the server engine and adapted to present at least a portion of a device page for a known end device including both static and dynamic data about the end device,

wherein the server engine is adapted to store the static data and to load the static data on the device page concurrent with initiating a read request to obtain dynamic data from the end device and to refresh the device page until the read request is complete, and wherein the server engine is adapted to cache the dynamic data and to periodically reinitiate the read request to obtain updated dynamic information from the end device when the dynamic data is cached.

2. The BAS of claim 1, wherein the periodic reinitiation by the server engine is automatic.

3. The BAS of claim 2, wherein a reinitiation frequency is determined by the server engine and is different for different ones of the plurality of end devices.

4. The BAS of claim 3, wherein a reinitiation frequency is determined by the server engine according to at least one characteristic of the end device.

5. The BAS of claim 4, wherein the at least one characteristic of the end device comprises one selected from the set consisting of an end device type, an end device location, an end device status, and a user-specified end device attribute.

6. The BAS of claim 3, wherein the reinitiation frequency is determined by the server engine according to at least one characteristic of the dynamic data.

7. The BAS of claim 6, wherein the at least one characteristic of the dynamic data is a metadata descriptor of the dynamic data.

8. The BAS of claim 6, wherein the at least one characteristic of the dynamic data is a rate of change of the dynamic data.

9. The BAS of claim 8, wherein the rate of change is a historic rate of change observed by the server engine.

10. The BAS of claim 8, wherein the rate of change is estimated by the server engine according to at least one characteristic of the end device.

11. The BAS of claim 10, wherein the estimated rate of change is applied by the server engine to any of the plurality of end devices having the at least one characteristic.

12. The BAS of claim 3, wherein a reinitiation frequency is determined by the server engine according to a logical combination of a plurality of reinitiation frequencies.

13. The BAS of claim 12, wherein the plurality of reinitiation frequencies are selected from the set consisting of a reinitiation frequency related to at least one characteristic of the end device;

a reinitiation frequency related to at least one characteristic of the dynamic data;

a system default reinitiation frequency; and

a manually programmed reinitiation frequency.

14. The BAS of claim 1, wherein the periodic reinitiation is a device page request manually initiated through the GUI.

15. A building automation system (BAS) comprising:

a plurality of end devices each associated with at least one of a space, a system, or a subsystem for at least a portion of a building or a campus;

a communication network communicatively coupling the plurality of end devices and having a dynamic extensibility capability and an automatic configuration capability;

a graphical user interface (GUI) communicatively coupled to the communication network and adapted to present at least a portion of a device page for a known end device including both static and dynamic data about the end device, and

a protocol-independent server engine communicatively coupled to the communication network and including

software instructions adapted to implement the dynamic extensibility capability to establish communications with, to receive and store data about, and to control the end devices,

software instructions adapted to implement the automatic configuration capability to determine at least one characteristic of each of the end devices, wherein the at least one characteristic comprises a communication protocol compatible with the end device,

software instructions adapted to load the static data on the device page concurrent with initiating a read request to obtain dynamic data from the end device and to refresh the device page until the read request is complete, and

software instructions adapted to cache the dynamic data and to periodically reinitiate the read request to obtain updated dynamic information from the end device when the dynamic data is cached.

16. The BAS of claim 15, further comprising a database adapted to store the static data.

17. The BAS of claim 15, wherein the periodic reinitiation is automatic.

18. The BAS of claim 17, wherein a reinitiation frequency is determined by the server engine and is different for different ones of the plurality of end devices.

19. The BAS of claim 18, wherein the server engine further comprises software instructions adapted to determine a reinitiation frequency.

20. The BAS of claim 19, wherein the reinitiation frequency is determined according to at least one characteristic of the end device.

21. The BAS of claim 20, wherein the at least one characteristic of the end device comprises one selected from the set consisting of an end device type, an end device location, an end device status, and a user-specified end device attribute.

22. The BAS of claim 19, wherein the reinitiation frequency is determined according to at least one characteristic of the dynamic data.

23. The BAS of claim 22, wherein the at least one characteristic of the dynamic data is a metadata descriptor of the dynamic data.

24. The BAS of claim 22, wherein the at least one characteristic of the dynamic data is a rate of change of the dynamic data.

25. The BAS of claim 24, wherein the rate of change is a historic rate of change observed by the server engine.

26. The BAS of claim 24, wherein the rate of change is estimated by the server engine according to at least one characteristic of the end device.

27. The BAS of claim 26, wherein the estimated rate of change is applied by the server engine to any of the plurality of end devices having the at least one characteristic.

28. The BAS of claim 19, wherein the reinitiation frequency is determined according to a logical combination of a plurality of reinitiation frequencies.

29. The BAS of claim 28, wherein the plurality of reinitiation frequencies are selected from the set consisting of a reinitiation frequency related to at least one characteristic of the end device;

a reinitiation frequency related to at least one characteristic of the dynamic data;

a system default reinitiation frequency; and

a manually programmed reinitiation frequency.

30. The BAS of claim 15, wherein the periodic reinitiation is a device page request manually initiated through the GUI.