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A Service Oriented Simulation ArchitectureA Service Oriented Simulation Architecturefor Intelligent Building Managementfor Intelligent Building Management

Monica Monica DrăgoiceaDrăgoiceaLaurenŃiuLaurenŃiu BucurBucur

International Conference on Exploring Service Science 1.3 International Conference on Exploring Service Science 1.3

77--8 February 2013, Porto Portugal8 February 2013, Porto Portugal

LaurenŃiuLaurenŃiu BucurBucurMonica Monica PătraşcuPătraşcu

Department of Automatic Control and Systems EngineeringDepartment of Automatic Control and Systems EngineeringUniversitUniversity y PolitehnicaPolitehnica of Bucharestof Bucharest

SummarySummary

Smarter BuildingsSmarter BuildingsSystem Architecture System Architecture –– service orientedservice oriented

Use casesUse casesValue coValue co--creation through simulationcreation through simulation

ExampleExample

International Conference on Exploring Service Science 1.3 7-8 February 2013, Porto, Portugal 2

ExampleExampleEarthquake EMS Earthquake EMS –– ((VranceaVrancea, Romania), Romania)

Policy definition, simulationPolicy definition, simulation

ConclusionsConclusionsFurther developmentsFurther developments

Use cases Use cases extension extension

The Smarter BuildingThe Smarter Building

A system of systems within a larger ecosystemA system of systems within a larger ecosystem

Critical systemsemergency protocols

EmergencyIntervention

Warning dispersionand panic control

Trafficcontrol

Portal -Syndicating

BuildingIntelligence


Software intensivesub-systems

Security

AccessFire

control

Elevators

Lighting

Ventilation

Energy

Communication

Distributed integration ofelectronic, mechanical, softwareand electrical engineering

System Architecture System Architecture –– www.fcint.rowww.fcint.ro


Smarter Building Smarter Building –– a Service Oriented Approacha Service Oriented Approach

Enviroment Manager(Web Application)

Policy Editor(Desktop Application)

Smart BuildingController

(WCF Service)

Device ControlWeb Services

1

3

6

Simulation


Simulation Engine(RESTful Service)

Report Generation(RESTful Service)

Simulation Console(Web Application)

2

4

5

SimulationBridge -

Simulated Devices

(WCF Service)

7

Smarter Building Smarter Building –– Simulation FrameworkSimulation Framework

based on a Smart Building Simulator

goals:

testing the response of a Smart Building Controller

estimating the utility bill (real / virtual building)

uses simulation scenariosuses simulation scenarios

time ordered events

virtual devices

real devices


Simulation Console(Web Application)

Simulation Engine(RESTful web service)

Smart Building Controller(WCF web service)

Report Generation(RESTful web service)

4

2

5

Smart Building Simulator

System usability System usability –– use casesuse cases


Case study Case study –– EMS for EarthquakesEMS for Earthquakes

www.inpf.ro

http://earthquake.usgs.gov/earthquakes/m


http://earthquake.usgs.gov/earthquakes/map/

EMS for Earthquakes EMS for Earthquakes –– system integrationsystem integration

integrating integrating earthquake and EMS in earthquake and EMS in Smarter Smarter BuildingsBuildings

Portal -

Syndicating

SBC

Smart Building Controller

Air Condition (web service)

Lighting (web service)

2

2


Syndicating

Building

Intelligence:

Environment

Manager

(Web application)

UserSmart Building Controller

(WCF Web Service)

Policy Repository

Policy 1

Policy 2

...

Policy n

1 2

2

Simulation

Engine

(RESTful

service)

3

Critical system

emergency

protocol

(Web service)

4

Damping Controller

(web service)

Fire Control (web service)

Elevator control

(web service)

2

Simulation framework Simulation framework –– working definitionsworking definitions

A simulation scenario A simulation scenario is is a perspective created in the a perspective created in the Simulation Console by the composition of:Simulation Console by the composition of:

a a set of time ordered events set of time ordered events that are processed by the SE and that are processed by the SE and visualized in the SC in the timelinevisualized in the SC in the timeline

a a set of virtual devices (set of virtual devices (instances of virtual device classes instances of virtual device classes defined by the user)defined by the user)


defined by the user)defined by the user)

a a set of real devices set of real devices (installed at the facility level, recognized (installed at the facility level, recognized and controlled by the SBC through the corresponding web and controlled by the SBC through the corresponding web services)services)


A scheduleA schedule is is an executable an executable instruction setinstruction set for for the control of physical devices and device groups the control of physical devices and device groups

actions are associated with certain time intervalsactions are associated with certain time intervals(e.g. days of the week)


(e.g. days of the week)

A policyA policy is a set of rules:is a set of rules:

ONON (Trigger) (Trigger) IFIF (Condition) (Condition) THENTHEN {Block of {Block of

actions} actions} ELSEELSE {Block of actions}{Block of actions}


Policy examples:Policy examples:

Low Low level: level: “If earthquake warning is active, “If earthquake warning is active, stop all elevators at closest floor.”stop all elevators at closest floor.”


High High level: level: “If earthquake alarm active and “If earthquake alarm active and occupancy < 40% and security occupancy < 40% and security understaffed, then apply emergency understaffed, then apply emergency evacuation protocol number 6.”evacuation protocol number 6.”

Working stepsWorking steps

SBC ready to

receive

EarthquakeAlarm

events

FCINT Simulation

Engine imported

the

EarthquakeAlarm

connection

established

Event types

imported

SBC ready to

receive

EarthquakeAlarm

events

FCINT Simulation

Engine imported

the

EarthquakeAlarm

connection

established

Event types

imported

SBC ready to

receive

EarthquakeAlarm

events

FCINT Simulation

Engine imported

the

EarthquakeAlarm

connection

established

Event types

imported

SBC ready to

receive

EarthquakeAlarm

events

FCINT Simulation

Engine imported

the

EarthquakeAlarm

connection

established

Event types

imported

SBC ready to

receive

EarthquakeAlarm

events

FCINT Simulation

Engine imported

the

EarthquakeAlarm

FCINT Policy

Management

System

policy created and saved

SBC readyto executethe policy

SBC ready to

receive

EarthquakeAlarm

events

FCINT Simulation

Engine imported

the

EarthquakeAlarm

FCINT Policy

Management

System

policy created and saved

SBC readyto executethe policy


eventsEarthquakeAlarmimported

FCINT Simulation

Console ready with

an empty scenario

eventsEarthquakeAlarmimported

FCINT Simulation

Console ready with

an empty scenario

imported

FCINT Simulation

Console ready with

an empty scenarioFCINT Simulation

Bridge ready with

virtual devices

SBC ready to send

commands to the

Simulation Bridge

virtual devices

imported

FCINT Simulation

Console ready with


Bridge ready with

virtual devices

SBC ready to send

commands to the

Simulation Bridge

virtual devices

eventsEarthquakeAlarm

FCINT Simulation

Console ready with


Bridge ready with

virtual devices

Virtual devices ready to receive commands

eventsEarthquakeAlarm

FCINT Simulation

Console ready with


Bridge ready with

virtual devices

Virtual devices ready to receive commands

Case studyCase study

Testing the response of a Smart Building Controller – steps:

define the events in the simulation scenario to be sent to the Smart Building Controller - as external events corresponding to the events list defined in the SBC

define the simulation scenario in the Simulation Console -including real devices in the building infrastructure recognized including real devices in the building infrastructure recognized and controlled by the SBC and models of the virtual devices through the Simulation Bridge

define the policies and schedules for the Smart Building Controller operation, through the Policy Editor

execute simulation scenario in the Simulation Console and inspect the SBC’s execution logs


Case study Case study –– (1) define events(1) define events


Case study Case study –– define a simulation scenariodefine a simulation scenario

Q: What do we want to simulate ?

Q: Given a set of rules that specify the behavior of the SBC in a real EarthquakeAlarm situation, how to test this scenario without a real alarm occurring ?

A: We use the FCINT Simulation framework to create a A: We use the FCINT Simulation framework to create a scenario in the Simulation Engine.

Idea: Have the Simulation engine “pump” EarthquakeAlarms to the SBC

International Conference on Exploring Service Science 1.3 16


there are no physical devices to control in case of an EarthquakeAlarm event, yet installed in the SBC

we use the Simulation Bridge to create virtual devices for the policies to act upon

virtual devices are treated by the SBC the same way as real devices, via the web services interfacedevices, via the web services interface

use the Simulation Bridge to create, expose and allow the SBC to control the following virtual devices:

GasSwitch (state: int = 0/1)

Light1, Light2, Light3 (state: int = 0/1)

EarthquakeAlarm (running: int = 0/1)


Case study Case study –– (2) define simulation scenario(2) define simulation scenario



System status

Simulation Engineimport the

EarthquakeAlarm

SBC ready to receiveEarthquakeAlarm events

connectionestablished


EarthquakeAlarmevent

Simulation Consoleready with an empty

scenario

Simulation Bridge readywith virtual devices

SBC ready to sendcommands to theSimulation Bridgevirtual devices

Event typesimported

list external events inEventType window

Case study Case study –– create policies and rulescreate policies and rules

use the Policy editor to create the EarthquakeTestPolicy:


Case study Case study –– create scenarios to simulatecreate scenarios to simulate

create 3 earthquake alarm scenarios to test the EarthquakeTestPolicy:


Case study Case study –– add eventsadd events


Case study Case study –– execute scenarioexecute scenario

step by step execution in the Simulation Console main window

inspection of the SBC Console – was the event received ?

inspection of the virtual device status in the Simulation BridgeBridge

were the actions in the policy executed on the simulated devices ?


Case study Case study –– execute scenario execute scenario (Test #2)(Test #2)

Event 2 : At simulation time 14:00, an earthquake alarm having: Magnitude_min=3, Time_to_earthquake=5, Geographical_Area=Vrancea is processed

Desired behaviour: Turn off the lights, leave EarthquakeAlarm and GasSwitch unchanged

Prior to execution, we manually set: Light1,2,3. state=1, EarthquakeAlarm=0 and GasSwitch=1;


Case study Case study –– execute scenario execute scenario (Test #2)(Test #2)


ConclusionConclusion

an extensible and flexible service-oriented approach

a unitary description of devices based on web services

it supports development of a larger service ecosystem dedicated to Smarter Buildings

ControlControl

Monitoring

Utility cost estimation

Testing

Training

more use cases to be developed


Software intensivesub-systems

Security

AccessFire

control

Elevators

Lighting

Ventilation

Energy

Communication

Distributed integration ofelectronic, mechanical, softwareand electrical engineering

Critical systemsemergency protocols

EmergencyIntervention

Warning dispersionand panic control

Trafficcontrol

Portal -Syndicating

BuildingIntelligence

Thank you!Thank you!


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