mars eva computing environment project introduction mark smith ideapod@yahoo.com.au

Mars EVA Computing Environment

Project IntroductionMark Smith

ideapod@yahoo.com.au

Mars Society Australia● Not for Profit Society, one part of global mars

society. The goals are:– Public and outreach programs to promote mars science and exploration

– Encouraging Government endorsement and funding of mars exploration program

– Support of privately funded mars exploration

– Promotion and support of australian contributions toward mars exploration through education, industry, government and individuals.

● Operation Red Centre to build: Rover, Hab, and Suit.

● People from Uni's in Perth, ANU, Uni NSW and QLD involved in various aspects of projects

● http://www.marssociety.org.au

Mars Skin● Mars Skin is the project to

develop a Mechanical Counter Pressure (MCP) Suit.

● Led by James Waldie – RMIT – PhD student

● Requires a method of logging data captured during the mission.

● ExOne planned for 'Version 2' Mars Skin.

Data Logger History

● Mars Society Canada – Produced a Data Logger● Integrated with MarsSkin in Utah(ExOne).● Technologies:

– Linux– 'C'– PC104 platform– Custom 4x4 keypad & display for user input

● Logs to hard disk for later evaluation

Why Yet Another Data Logger?

● Not just a data logger – think of the wider problem

● What are we trying to do when we go to mars and do an EVA?– Explore – gain scientific understanding– collaboratively work through the problem– Co-ordinate our activities

Mars EVA Computing Environment

● Develop software system:– Plan Missions &

EVA's– Execute and

Monitor the Plan – Analyse the

results afterwards● Let's take an

example:

Features: Planning

● Plan the Rover Route from Hab:● EVA Points along the way.● Drill to EVA's, and plan eva route● Plan resources:

– Equipment – Personnel– Suits– Rover

Features: Execution

● Tracking of Route vs Planned● At EVA Points, log EVA activity● Suit will know the EVA it is on, establish Voice

Communications network

Network 1 Network 2

Network 2

Features: Execution 2

● Video, Data logged to disk, but also streamed to Rover

● Rover Operator can be in conversation● Command of robots through same software

GPS

Vital Signs

Suit Data

External Instrument

Suit 1..n

Features: Monitoring

● GPS tracking of each suit through planned route of EVA.

● Events logged by EVA participants, causes annotation to data stream.

● Event summary sent through to any hab, or terrestrial monitors.

● Aliens 2 type video/vitals display

Event Data thru 802.11b

Or, if proximity allows thru 802.11b

Event Summary to HAB Monitor

To earth?

Features: Analysis

● Post Mission/EVA, events punctuate collated data.

● Event data can be extracted for analysis. ● Mission Results stored in Global Mission Store

How?

● Technology Search:

– perl, jxta, palm technologies, C++ streaming libs, SIP phones● Decided:

– Windows/Linux with 802.11b – Wireless Network

– Java – high level language & detailed platform

– Jini – Spontaneous Network technology

– JMF – Java Media Framework – media capture & streaming.

– JSP – Java Server Pages – GUI for planning/monitoring

Systems Overview

Local Mission Controller

Rover User Interface

Rover Suit

EVA Participant

SuitUser Interface

Voice NetworkParticipant

Global Mission Controller

Global Mission Store

HABWireless LAN

Wireless LAN

• Main Points: Wireless LAN for opportunistic connection • Jini Services:

•Global Mission Controller•Global Mission Store•Local Mission Controller

RTP Streaming – for Voice & Data

Voice Network Participant

Voice Network Participant

RTP GSM EncodedData Stream

Provider

EVA Data Manager

Suit 2

Suit 1

Data Stream Provider

RTP (Various Encodings)

JINI•Spontaneous services – perfect for Mars!•Combined with Wireless networking•Ubiquitious, proximity based service and data provision

Registrar

Local Mission Controller

1. Registers LMC with Registrar

EVA Participant

2. Asks for LMC, gets service Object

3. Makes use of LMC service

Project Status

● Documentation Begun:– Model in ArgoUML containing:

● High level use cases● Mission store & hab/suit/rover servers begun. ● Mission/planning objects & services● Rover UI is furthest advanced, shows not much, and trying

to integrate with JINI● JMF used for Audio Streams (not yet operational)

● Code available on source forge.● Susan Smith in Sydney working on persistence

for mission store.

Possible Projects(1)Project Name Objectives Reference Use Cases Effort Estimate

GPS Data Stream GPS JMF data capture

JMF logging &streaming.

Integration of GPS

UC 1.3 RoverMovement

UC 1.5 Data Loggedfrom Suit

2 Person Months

Audio Data Stream JMF audio data capture

JMF logging &streaming.

Integration of audioStreams intoEVAParticipant class.

UC 1.6 AutomaticComms Network.

2 Person Months

Video Data Stream Video JMF data capture

JMF logging & streaming

Integration into EVAParticipant

UC 1.5 Data Loggedfrom Suit

2 Person Months

VoiceCommunicationsNetwork

GUI control of JMFstreams to implementnetwork switching &mixing

UC 1.6 AutomaticComms Network.

UC 1.12 SeparateVoice Network

UC 1.6.1

1 Person Months(dependant on basicaudio streamsworking)

GPS Mapping Real time tracking ofGPS stream over maps(suit, rover)

UC 1.7 RoverOperator MissionView

3 Person Months

(dependant on GPSStreams, co dependanton mission planning)

Possible Projects(2)Project Name Objectives Reference Use Cases Effort Estimate

EVA EventManagement

EVA event creation,notation & streaming

UC 1.9 EVA EventHandling

UC 1.15 EventComplete

UC 1.10 Jen JoinsJohns Event

1 Person Months

Remote Monitoring Remote Monitoring ofMission (eg Hab, EarthMission Control) & eventinterjection.

UC 1.9 EVA EventHandling

1 Person Months

Mission Review &Reporting

Attach summaries &conclusions to missiondata

Replay sections ofmission

UC 2.0 EVA Review 3 Person Months

Mission Planning Design a mission.

Approve a mission

start a mission

UC1.1.1 DetailedPlanning

2 Person Months

Local GlobalMission Store Sync

When a rover returnsfrom out of LAN range,the data needs to besynced

None 1 Person Months

Possible Projects(3)Project Name Objectives Reference Use Cases Effort Estimate

Local Missionalteration.

Ability to cchange themission route and otherdata while mission isunderway

None 0.5 person months(dependant on missionplanning)

Capture, Streamingof other datasources from Suit

integration of genericdata sources as JMFstreams

UC 1.5

UC 1.14 Instrumentdata through suit

2 Person Months

Rover VitalsDisplay

Rover monitoring ofvitals, and display ofJMF streams.

UC 1.5, UC 1.7 3 Person Months.Difficult GUI & datapresentation.Dependant on datastreaming projects

Robot Control robot control using voicecomms

Vocab for sharedgoals/movements

Conceptual basis fordescribing robot

UC 1.8 UtilBot Setup

UC 1.13 Robot calledover voice network.

6 Person Months. Bigproject. Need to designvocab, and do AI forsharedgoals/movements etc.

HAB Software Mission Planning donehere + Monitoring ofmultiple missions

Resource/ Personnelmanagement

None 2 Person Months

Where Now?

● Project needs:– Programmers

– Mars Mission Planners

– Integration with Hab/Rover/Suit groups

– Target? ISU July 04?

● Contact me if you can help!

Questions?