2011 IEEE Aerospace ConferencePaper #1264

System

11

David Kaslow - Analytical Graphics Inc. dkaslow@agi.com

COTS Implementation of a Sensor Planning Service GetFeasibility Operation

– Interim Status #2

Time-dynamic, physics-based modeling, analysis, and visualization of

land, sea, air and space systems

Tool Kit (STK) Satellite

2011 IEEE Aerospace ConferencePaper #1264

2

Topics

FireSat Satellite System SysML Model

Detect, Identify, andMonitor Forest Fires

AGIComponents

(COTS Capabilities)

Interface

AGIStandard

Object Catalog (SOC)

COTS Web-Based Sensor Planning Service (SPS)

AGIComponents

(COTS Capabilities)

Interface

• Supports AGI’s Satellite Took Kit (STK)

• Modeling and Simulation of Space, Ground, Air and Sea Based Scenarios

• Public Accessible

• SOC Supports COTS SPS

‒ Currently Populated with Satellites and Facilities‒ Including Exiting Optical & Radar Satellites ‒ Imager Characteristics and Models

Similar Schema

2011 IEEE Aerospace ConferencePaper #1264

3

Population of and Access to SOC

SatelliteTook Kit

Plug-In

Standard Object Catalog

STK Objects

COTS SPS

Generate XML Document

Spacecraft Staging

DB

Manually Populate Staging

Database

Data Team

SOCWeb Site

XML Docs

Search

Results

Comments

Internet

Brow

ser

User

Populate XML

Document

Submit for Approval User

Review, Feedback, Reconcile Data

Team

Object Build

http://soc.agi.com/

2011 IEEE Aerospace ConferencePaper #1264

44

SOC Contents Catalog : Contents to Date

Earth Obs Payload Operations Modeled

44 Optical

40 Unique

81 Sensors

68 Unique

116 Operating Modes

100 Unique

Optical Operating Mode:

Combination of sensor, spectrum, projected field of view, ground resolution

15 Radar

9 Unique

66 Operating Modes

46 Unique

Radar Operating Mode:

Spotlight, StripMap, …

949 Facilities

Ground Station Launch Site Radar Station Laser Station Optical Tracking Station

1200 Satellites

Active, Not Active, Planned

Years 1990-2011

188 Earth Observation

186 Technical Development

102 Scientific

618 Communication

84 Navigation

26 Weather

2011 IEEE Aerospace ConferencePaper #1264

5

COTS Sensor Planning Service

OGC Sensor Web Enablement Initiative:

Standards for Interacting with Web-Connected

Sensors

FireSat Satellite System SysML Model

Detect, Identify, andMonitor Forest Fires

AGIComponents

(COTS Capabilities)

Interface

COTS Web-Based Sensor Planning Service (SPS)

AGIComponents

(COTS Capabilities)

Interface

AGIStandard

Object CatalogExiting Optical & Radar Satellites

Imager Characteristics

and Models

Request & Response

Get Capabilities

Describe Tasking

Get Feasibility

2011 IEEE Aerospace ConferencePaper #1264

66

OGC Sensor Web Enablement

User

Sensor PlanningService

SensorObservation

Service

Sensor AlertService

SensorMgt

SystemSensors

SensorObservationRepository

Registries

SPS

SOS

SAS

Standards and Services for Interacting With

Web-Connected Sensors and Sensor Systems – Space, Ground, Sea, Air

2011 IEEE Aerospace ConferencePaper #1264

7

Sensor Planning Service Overview

7

Sensor Planning Services

Discover Sensors

Formulate Collection Task

Determine Feasibilityof Collection Task

Submit Collection Task

Inquire About Status

Inquire About AccessingData Collected

Update Collection Task

Cancel Collection Task

User

XML Documents

Operation Request

Operation Response

Exceptions

SPS Application Spec

Description of Operations

Definition of Parameters

XML Schema

Example XML Documents

Schema

Sensor Planning Service

OGC Web Service

Geographic Markup Lang.

SWE Common Data Types

XML Linking LanguageUser – SPS Interface

OGC 07-014r3OGC Web Site

COTS

2011 IEEE Aerospace ConferencePaper #1264

88

Role of the COTS GetFeasibility Operation

Satellite / Sensor Catalog

Commercial & Governmental -

SPS Enabled or Not

COTSSPS

Discover SensorsFormulate Collection Task

Determine Feasibility

Not selected -Insufficient ground resolution

DP #2

DP #4Not selected - Other DPs havenearer-term access

Planning:One source for creating list of candidate satellite / sensors

User

Candidate Data Providers:DP#2, #4, #5, #7, #10, #12

2011 IEEE Aerospace ConferencePaper #1264

99

Role of the COTS GetFeasibility Operation

DP #12Not SPS Enabled

Selected -With acquisition timesthat force desiredacquisition conditions

Submit Order

User

DP #7SPS Enabled

Formulate Collect. TaskDetermine Feasibility

Submit TaskSelected

DP #10Not SPS EnabledSubmit Order Selected

DP #5SPS Enabled

Not selected -Cannot scheduleuntil out-days

Formulate Collect. TaskDetermine Feasibility

Scheduling

Final selection and tasking / order is through services of individual Data Providers

2011 IEEE Aerospace ConferencePaper #1264

10

FireSat Satellite System

Setup of Scenario Elements

Mission Sats and Payloads

Relay Satellites and Ground Stations

Features of Interest, e.g. Continental U.S.

Request & Response

Feature Accessibility & Coverage

AGIStandard

Object CatalogExiting Optical & Radar Satellites

Imager Characteristics

and Models

Similar Schema

FireSat Satellite System SysML Model

Detect, Identify, andMonitor Forest Fires

AGIComponents

(COTS Capabilities)

Interface

COTS Web-Based Sensor Planning

Service

AGIComponents

(COTS Capabilities)

Interface

• INCOSE MBSE Pilot Projects

• AGI, InterCAX, JPL team

- INCOSE - International Council on Systems Engineering

- MBSE - Model Based Systems Engineering

2011 IEEE Aerospace ConferencePaper #1264

11

Prototype Data Exchange Specified by Schema

Data Exchange Specified by Schema

Scenario Elements Initialization

Spacecrafts

Imaging Payloads

Features of Interest

Relay Sats

Ground Stations

Scenario Times

Feature Coverage Response

Coverage by Area and by Percent

Min, Max & Avg Response Time

Min, Max & Avg Revisit Time

Coverage by Time Interval

Accessibility Chain Response

Access Interval Start / Stop TimesAccessibility Chain Request

Scenario Elements

Feature Coverage Request

Feature of Interest Name

Spacecraft & Payload Names

Figure of Merit Request

Interface Prototype

Components Interface

AGI Components

Cache Interface

Scenario Cache

SysML ModelInterface Prototype

Setup Sys Elements

Determine Accessibility

Determine Coverage

Data Exchange

Feature Coverage Request/Response

AccessibilityRequest/Response

Scenario Elements

2011 IEEE Aerospace ConferencePaper #1264

12

Candidate Interface toAGI Components

Cache Interface

Components Interface

AGI Components

Scenario Elements

Cache

Prototype Design of FireSat SysML Modeland AGI Components

Candidate FireSatSysML Model Prototype

Measures of Effectiveness

Area Covered

Revisit Time

Power Margin

Memory Margin

FireSat System Elements Pool

Elements Setup

Elements Selection

Accessibility & Coverage Queries

Data Analysis

Coverage Roll-up

Comm Usage

Memory Usage

Power Usage

2011 IEEE Aerospace ConferencePaper #1264

13

Prototyping of SysML Interface with AGI Components

SysML Model – AGI Components – Single Executable

SysML Model

Specification of Satellite Orbit Parameters

Ground Station Position

Display of Satellite / Ground Station Access

Intervals

AGI Components & Insight3D

Calculate Satellite Orbit & Satellite / Ground Station

Accessibility

Dynamic Display of

Satellite Orbiting Earth &

Access to Grd Station

Satellite / Grd Station Accesses

Orbital Parameters

Grd Station Position

ParaMagic from InterCAX

MagicDraw from No Magic

Demonstrated atINCOSE MBSE Workshop

in February 2011

Related Paper: Bajaj, M., “SLIM - A Collaborative, Model-Based Systems Engineering Workspace for Next-Generation Complex System”, 2011 IEEE

Aerospace Conf.

2011 IEEE Aerospace ConferencePaper #1264

Future Work

• Upgrade Standard Object Catalog– Simplify XML to aid in user population and search– Conform to ISO Standards: SI units, date time / duration– Provide capability for user to submit XML document

• Prototype a SysML model of CubeSat

• Reactivate prototype of COTS Sensor Planning Service

1414