Open Building Information Monitoring

Andrew KrioukovDavid Culler

Previously: Manual Instrumentation

4/12/11 2CPS 2011

Cory Hall Sensors & Meters• 10 Dent PowerScout electrical meters

– ModBus, RS-485• 2 Power Standards Labs meters

– Ethernet• 2 ION 6200 meters

– ModBus, RS-485• 70 ACME receptacle meters

– 802.15.4/LoWPAN/IP• 4 rooftop solar, temp sensors• Obvius steam meter Panel 1 Panel 2

A

B

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Panel 1 Panel 2

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B15913

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172125

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B

sMAP: Narrow Waist

CSV, HTTP HTML, HTTP Bacnet/IP ModBusRS-485

JSON, HTTPsMAP

Modeling

Visualization

ContinuousCommissioning

Control

PersonalFeedback

DebuggingStorage LocationAuthentication

Actuation

Appl

icati

ons

Differing Schemas, Encodings and Transport

Sutardja Dai Hall

• ~140k sq. feet• Siemens Apogee BMS• WattStopper• BACnet/IP• 5886 sense/control

points

NetworkSensors,Actuators Controllers

Modem

Siemens P2over RS-485

ApogeeServer

RemoteLogin

BACnet/IP

Gateway

sMAP

Internet

ApogeeServer

RemoteLogin

BACnet/IP

Gateway

sMAP

Internet

Network

WattStopperServer Modem

Remote Login,BACnet/IP

BACnet/IP Protocol

• Schema– Devices– Objects– Types– Properties

• Methods– Discovery– Read– Write

Schema

Object Types (50 total):Device ID

Object ID, Type Num

Object ID

…

Property ID

Property ID

Analog – FloatBinary – Boolean (e.g. relay state)Multi-state – Enum (e.g. high/med/low)

Input – Sensor input (e.g. temp)Output – Control output (e.g. valve pos)Value – Variable (e.g. setpoint)

Schedule

…

Schema

Properties (344 total):• PROP_PRESENT_VALUE• PROP_DESCRIPTION• PROP_LOCATION• PROP_UNITS• PROP_SCALE• PROP_LOW_LIMIT…

Units (190 total):• Area• Electrical• Frequency• Length• Light• Mass• Mass Flow• Power• Pressure• Temperature• Time• Torque• Velocity• Volume• Volumetric Flow…

Data• 1358 control settings

– Set points, Relays (lights, pumps, etc), Schedules• 2291 meters/sensors

– Power (building, floor, lights, chiller, pumps, etc)• Current, voltage, apparent, real, reactive, peak

– Temp (rooms, chilled water, hot water)– Air volume– Alarms, Errors

• 2165 control outputs– Dampers, valves, min/max flow, fan speed, PID parameters

• 72 other

Extendable to other Buildings

• Center for the Built Environment– Other buildings on campus

• NY Times Building

DataMSB

MS41A (FAB Process Tool)

MS41B (FAB Mech))

MD42AEX-6EX-7

ELEV-4SCHWP-1SCHWP-2

CWP-1CWP-2PVP-1PVP-2

PCWP-1PCWP-2CHP-1

CDAC-1CDAC-2

SF-1SF-2SF-3

RO/DIAcid Wash

RAHU-1 thru 26

ATS-E02

EOCD41BCAC-1CAC-2

CITRIS Server RoomBDF

IDF-3IDF-6

MDC-UPS-Bypass

ATS-EL

ELCD41AEmergency Lights and Recepticals

ELMD47AEF-1EF-2EF-3EF-4

CB4A

CL42A

CL43A

CL44A

CL45A

CL46A

CL47A

CR27A

CR26A

CR25A

CR24A

CR23A

CR22A

Power Breakdown

Lights &

Plugs14%

Servers &

Cool-ing

15%

HVAC52%

Other19%

Building Power (Excluding Nano Fab)

0

50

100

150

200

250

300

350

400

Lights & PlugsServers & CoolingNano FabHVACOtherPo

wer

(kW

)

Building Power

Issues

• Naming & Metadata– Based on underlying physical controllers

• Encoding – binary• Schema – fixed• Security

ApogeeServer

RemoteLogin

BACnet/IP

Gateway

sMAP

Internet

Security Issues

WattStopperServer Modem

Remote Login,BACnet/IP

Questions

Sutardja Dai Building PowerMSA MSB

AH1A &1B CAC 1&2

ELEV 4 CITRIS Server Room

CHP 2&3 IDF 3-6

SF.2 BDF

CH-1 Lev. 2-7 Lighting and Receptacles

CP-1 FAB HVAC Load

800kW – 1MW