Skip to main content    

An official website of the United States government

Here’s how you know

**Official websites use .gov**              A **.gov** website belongs to an official government organization in the United States.            

**Secure .gov websites use HTTPS**              A **lock** (  LockA locked padlock) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.            

https://www.nist.gov/el/energy-and-environment-division-73200/intelligent-buildings-agents-laboratory-ibal/data/data

            -  Topics  -  All Topics 
-  Advanced communications 
-  Artificial intelligence 
-  Bioscience 
-  Buildings and construction 
-  Chemistry 
-  Climate 
-  Cybersecurity 
-  Electronics 
-  Energy 
-  Environment 
-  Fire 
-  Forensic science 
-  Health 
-  Information technology 
-  Infrastructure 
-  Manufacturing 
-  Materials 
-  Mathematics and statistics 
-  Metrology 
-  Nanotechnology 
-  Neutron research 
-  Performance excellence 
-  Physics 
-  Public safety 
-  Resilience 
-  Standards 
-  Transportation 
 
            -  Publications 
            -  Labs & Major Programs  -  Laboratories    -  Communications Technology Laboratory 
  -  Engineering Laboratory 
  -  Information Technology Laboratory 
  -  Material Measurement Laboratory 
  -  Physical Measurement Laboratory 
-  User Facilities    -  NIST Center for Neutron Research 
  -  CNST NanoFab 
-  Research Test Beds 
-  Research Projects 
-  Tools & Instruments 
-  Major Programs    -  Baldrige Performance Excellence Program 
  -  CHIPS for America Initiative 
  -  Manufacturing Extension Partnership (MEP) 
  -  Office of Advanced Manufacturing 
  -  Special Programs Office 
  -  Technology Partnerships Office 
 
            -  Services & Resources  -  Standards and Measurements    -  Calibration Services 
  -  Laboratory Accreditation (NVLAP) 
  -  Quality System 
  -  Standard Reference Materials (SRMs) 
  -  Standards.gov 
  -  Time Services 
  -  Office of Weights and Measures 
-  Software 
-  Data    -  Chemistry WebBook 
  -  National Vulnerability Database 
  -  Physical Reference Data 
  -  Standard Reference Data (SRD) 
-  Storefront 
-  License & Patents 
-  Computer Security Resource Center (CSRC) 
-  NIST Research Library 
 
            -  News & Events  -  News 
-  Events 
-  Blogs 
-  Feature Stories 
-  Awards 
-  Video Gallery 
-  Image Gallery 
-  Media Contacts 
 
            -  About NIST  -  About Us    -  Leadership 
  -  Organization Structure 
  -  Budget & Planning 
-  Contact Us 
-  Visit 
-  Careers    -  Student programs 
-  Work with NIST 
-  History    -  NIST Digital Archives 
  -  NIST Museum 
  -  NIST and the Nobel 
-  Educational Resources 
 

Engineering Laboratory

## Building Energy & Environment Division 

-  Intelligent Buildings Agents Project  Expand or Collapse    -  IBAL Overview 
  -  IBAL Equipment 
  -  People 
  -  Research  Expand or Collapse      -  Publications 
  -  Data  Expand or Collapse      -  Data Dictionary 
    -  Known Issues 
    -  Data Processing Scripts 
    -  Database 
    -  Sample Experimental Thermal Storage Data 

# Data Dictionary

## Share

Facebook

Linkedin

Twitter

Email

There are over 160 sensors in the IBAL and 130 control and feedback signals. All the signals are identified in a meta data file, MetaData.csv. This file includes:
                  - measurement_id                      - Name of the sensor/control signal
                    - Examples:                         - ahu1_p_down = pressure transducer downstream of AHU1
                      - v2_pos_c = control signal set the position of Valve2
                      - v2_pos_fb = feedback signal indicating the actual position of Valve2
                      - ahu1_out_rtd = temperature measurement at the outlet of AHU1
                      - ahu1_rh_down = relative humidity measurement at the outlet of AHU1
                      - ahu1_f_sa = airflow rate in the supply duct to AHU1
                      - ahu1_fan_power = power consumption of the AHU1 fan
                  - card                      - The data acquisition card connected to the sensor/controller
                  - physical_channel                      - Channel used by the data acquisition system to create the connection to the sensor/controller
                  - channel_number                      - Number associated with the sensor/controller
                  - measurement_type                      - Control
                    - Differential pressure
                    - Flow
                    - Humidity
                    - Power
                    - Pressure
                    - Temperature
                  - signal_type                      - RTD – resistance temperature device; temperature measurement
                    - AI – analog input
                    - AO – analog output
                    - DI – digital input
                    - DO – digital output
                  - Subsystem                      - AHU1
                    - AHU2
                    - Chiller1
                    - Chiller2
                    - CondensingLoop
                    - CoolingLoad
                    - ExhaustFan1
                    - ExhaustFan2
                    - OAU
                    - PrimaryLoop
                    - SecondaryLoop
                    - ThermalStorage
                    - VAV1
                    - VAV2
                    - VAV3
                    - VAV4
                    - WaterSideEconomizer
                    - ZS1
                    - ZS2
                    - ZS3
                    - ZS4
                  - instrument_m_n                      - Manufacturer name of a sensor
                  - instrument_s_n                      - Serial number of a sensor
                  - calibration_date                      - Date of most recent calibration of a sensor
                  - accuracy_scaled                      - Accuracy of the sensor in the scaled units – may be from manufacturer data or based on calibration
                  - unit_raw                      - Unit of the raw measurement
                    - F
                    - Hz
                    - mA
                    - position
                    - V
                  - unit_scaled                      - Unit of the scaled measurement
                    - F
                    - cfm
                    - %
                    - gpm
                    - psi
                    - inH2O
                    - W
                    - fpm
                    - A
                    - mA
                    - V
                    - position
                  - range_lo_raw                      - Minimum value of the reading
                  - range_hi_raw                      - Maximum value of the reading
                  - startup                      - Value of the controller at startup
                  - shutdown                      - Value of the controller at shutdown
                  - scaling_coeff_a0                      - Zeroth coefficient of the polynomial equation for converting from raw to scaled values
                    - Scaled = a0 + a1*raw + a2*raw 2
                  - scaling_coeff_a1                      - First order coefficient of the polynomial equation for converting from raw to scaled values
                  - scaling_coeff_a2                      - Second order coefficient of the polynomial equation for converting from raw to scaled values

## Contacts

### FOR MORE INFORMATION, CONTACT:

                -  Amanda Pertzborn  amanda.pertzborn@nist.gov      (301) 975-5879   

-  **‹** Data 
-  Known Issues **›** 

### HEADQUARTERS

301-975-2000

Webmaster | Contact Us | Our Other Offices

TwitterFacebookLinkedInInstagramYouTubeGiphyRSS FeedMailing List

Feedback

            -  Site Privacy 
            -  Accessibility 
            -  Privacy Program 
            -  Copyrights 
            -  Vulnerability Disclosure 
            -  No Fear Act Policy 
            -  FOIA 
            -  Environmental Policy 
            -  Scientific Integrity 
            -  Information Quality Standards 
            -  Commerce.gov 
            -  Science.gov 
            -  USA.gov 
            -  Vote.gov