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www.aacmicrotec.com
Nytt datahanteringssystem
för småsatelliter
Rymdforum, Göteborg 2015-03-09
Emil Vinterhav
CTO
emil.vinterhav@aacmicrotec.com
+46 70 723 70 32
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ÅAC:s Rymdprodukter
Satellitsystem
Subsystem
Satellitavionik
Data Handling (DHS) & Power (EPS)
Ground Support Equipment (EGSE) and utbildningsprodukter
Virtual System Integration (VSI) Equipment
Flat Satellite Development Kit
JTAG debugger
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Heritage
SPARC-1
InnoSat
Rising-1
TechEdSat -3P
TechEdSat-1
RACE
Rising-2
RISESAT
DX-1
Ariane 6
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NGP-avionik
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OBC-S
– Omborddatorkort
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TCM-S
– Tight Coupled Memory, kombinerat massminne och CCSDS kommunications
stack med Telemetri & Telekommando
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RTU-S
– Remote terminal unit
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SpW router
– SpaceWire router
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PSU
– Power Supply unit, ett koncept för kraftförsörjningskoncept och och en
uppsättning byggstenar för att ta fram missionsanpassade PSU:er
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NGP Egenskaper
Egenskap
NGP‐avionik
Databuss
Space Wire
Klock frekvens
> 2 x tidigare generation
Operativsystem
RTEMS
TMTC Encoding
Integrerad CCSDS kodning
Fysisk formfaktor
Cubesat
Kraftförsörjning
Separat
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Förslag till mekanisk utformning av DHS
Sida för värmeavledning
Sida för felsökningsportar
X-band TX (TRX)
(proposal)
TCM-S (incl SSR)
OBC-S
SpW router
Sida för flygportar
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Mechanical envelope
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Korten har mindre än formfaktorn för Cubesat
Mekaniskt låda med Cubesat formfaktor
Stapelbar med lock på översta enheten
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General specification for the DHS
Typical performance:
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FPGA based design with Triple Modular Redundancy (TMR)
RTOS RTEMS
~50 MHz CPU, 32-bit OpenRISC, Fault Tolerant™
128 MB RAM (with EDAC)
1 or 32 GB Flash (with EDAC)
50 Mbps SpaceWire
RS422/RS485 UARTs
I2C
UART, JTAG and Ethernet
Internal FDIR and housekeeping monitor
5-16V supply range
Power consumption typically 1-2 W
2 x Pulse command inputs. Can be read from for example the
boot loader to select boot image. (for recovery modes)
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The TCM is a mass memory solid state recorder, a CCSDS data
packeting core, and a CPU core to control it.
TCM: Up to 50 Mbit/s CCSDS performance (Radio base band link
to Radio transceiver)
TCM: PUS-2 HW pulse command output (RS422 levels)
SpaceWire router, 6 port, 50 Mbps
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SPARC-1 – 6U high capability platform
Scope SPARC-1 mission
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Technology demonstrator
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Demonstrate military utility with 6U form factor - 3 GFE payloads
PAYLOAD
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NAPA3 - Bilateral agreement between USA (AFRL) and Sweden (FMV)
VOLUME
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ÅAC is responsible for System Engineering, DHS and EPS and AIT
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Launch planned August 2016
Configuration
• Size: 6U (30x20x10 cm)
• Mass: ~12kg
• Payload fraction: ~50%
• Average Orbit Power: ~40 W (400-700km)
• Design lifetime: ≥2 years
• Mission lifetime: 1 year
• Downlink bitrate: 6 Mbps (S-band)
• High performance AOCS
Satellite bus available for other missions!
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InnoSat – A new Swedish microsatellite
Standard Configuration
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Mass: ~40 kg
Size: 60x65x85 cm
Payload mass: ~15 kg
Payload power: ~40 W (orbit average)
Design lifetime: ≥2 years
Downlink bitrate: 3-5 Mbps
Stabilization: 3-axis with reaction wheels
Pointing performance:
• 0.1 deg pointing knowledge error
• 0.01 deg absolute pointing error
• Orbit determination: On-board GPS
• Optimized for Dawn/Dusk SSO
• Payload can be Earth- or Space-facing
PAYLOAD
VOLUME
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Contact info
HQs
ÅAC Microtec AB
Dag Hammarskjölds väg 48
751 83 Uppsala
Sweden
T: +46 18 560 130
E: info@aacmicrotec.com
W: www.aacmicrotec.com
The Ångström Laboratory, Uppsala Univ.
ÅAC Microtec Inc.
NASA Ames Research Park Bldg 19
Moffett Field CA 94035
USA
T: +1 844 831-7158
E: info@aacmicrotec.com
W: www.aacmicrotec.com
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