1. MRI – Research Group Meeting
Intelligent Building Research – Indoor Air Quality Applications
Using Wireless Sensors and Building Automation System
December 1, 2005
Chia Y. Han

2. Intelligent Building Research

3. Key Issue # 1 – Interoperability across enterprise and industry

4. Key Issue #2 – Open System Architecture

6. HVAC – Infrastructure for Indoor Air Operations

8. Setpoints – Meters/Sensors and Control Points

9. BACnet Objects Maint & Mat. Mgt. CMMS System Object
Frequency Drive Object
PID Control
Control Device
Supply Fan Variable VFD
Ref Set Point
VAV Air Handler Object
Fire & Smoke Alarm System Object
VAV Cooling Only Terminal Box
Dmpr Actuator
Flow
Sensor
VAV Cooling Only Terminal Objects
Thermostat
Objects
Ovrd PB
Setpt Adj
RH Sensor
Temp Sensor
Maint & Mat. Mgt. CMMS System Object
Sup Air Control Loop
Fan Static Press Sensor
Sup Air Flow Sensor
Ret Air Flow Sensor
OA Flow Sensor
CO2 Sensor
System User Objects
Power Management System Object
Return Fan Variable VFD
Load Ctrl Object

10. IBS – IAQ Application
To develop a BAS system for IAQ applications that is based on open system principles, domain standards and recommended practices, rule-based expert system, and Web technologies.
The system should provide capabilities for FDD with user-defined, case-specific rules.

11. Case Study - Air Isolation btw 2 rooms

12. IBS - Architecture

13. Web-Based IBS Implementation

14. Diagnosis Logic in Expert System Language
Diagnosis Request in XML

15. Sample Views of the BAS Technology

16. Siemens Building Technologies, Inc.
Technical Specification Sheet Rev. AA, October 2005

17. To implement the WFLN, a Field Level Network Radio Transceiver (FLNX) is mounted at the FLN device and a Field Panel Radio Transceiver (FPX) is mounted at the field panel.
Both must be powered by 24 Vac.
The radio’s antenna can either be direct or remote mounted.
In cases where the radio transceiver is mounted in a metal enclosure, the remote mount antenna would be used.
The transceivers are plenum rated for direct mount without an enclosure.
Once installed and powered, the radios automatically form the mesh network and the WFLN’s wireless mesh communication is virtually transparent to the system and end user.

30. Summary of IBS BACnet standard gaining acceptance worldwide
Interoperability effort is underway in building industries
Almost all major BAS vendors are now subscribing BACnet
Wireless-based sensors and controllers are starting to become available
Very few enterprise business process/workflow is incorporating BAS
Lack of easy-to-use, user-directed IBS