CCSDS?????????????

1
?????/??????????????????

• 2006?8?1?
• ?4???????????
• ????

2
?????

• ?????/??????
• ?????????????????????????????????????/????????????
  ?????????????????????????????
• ???????????
• ??????????????????????????????????????????????????
  ??????????????????????

3
??????

• ????
• ???????????????
• ????????????
• ??????????????????????
• ??????????
• ????????
• ???????????????????
• ????????
• ??????????

4
?????/??????
5
????????

• ????????
• ??????????(??????)????
• ??????????????????????????
• ??????????(?????????)???????????????????
• ??????
• ???????????(??????????????)???????????????????????
  ?????????????????????????

???????????
6
CCSDS?????????????

• ?????????
• ??????????????????????????????????????????????????
  ??????????????????????????????????????
• ???????????
• ??????????????????????????????????????????

7
CCSDS????????????? (1)

• ??
• 1979?????NASA/JPL??????????????????????
• ???????????????????????????????????????????
• ???
• 1982???????????????????????????????????????????(CC
  SDS)??????????NASA?ESA?CNES??
• 1984?????????????????????
• CCSDS???ISO???????????(????)??????

8
CCSDS????????????? (2)

• ???
• 1990???????????????????????Hubble Space
  Telescope????????
• 1998??????????????????????????????????????????????
  ????????
• 2000?????????????????????ASTRO-E?????????????????
• ?????????????????????????????

9
CCSDS???????????
??????????????? CCSDS Space Packet Protocol
??????????? CCSDS Space Data Link Protocols(TC,
TM, AOS)
??????? CCSDS RF Modulation
10
Space Packet Protocol???
APID
?? ????????
?? ????????
????
????????

• ?????????????????????????????????????????????????(
  ????)????????????????????
• ???????????Application Process Identifier
  (APID)?????????

11
??????? (1)

• ??????????
• ???????????????????????????????????????????????
• ????????????????????????(????????????????????????)
  ?????????????????(?????????????????????)?
• ???
• ?????????????????????????????????????????????????
  ????
• ?????????(APID??????)????????????(??APID?)????????
  ????????????

12
??????? (2)

• ?????
• ?????????????????????????
• ????????????????????????
• ?????????????????
• ????????????????????????????????????????

13
???????
14
????????????
?? ????????
?? ????????
DHU
???????
???????
SDTP
?????
?????
??
??
15
Space Data Link Protocols???

• ???????????????????????????????????????
• ??????
• TM Space Data Link Protocol
• AOS Space Data Link Protocol
• ?????
• TC Space Data Link Protocol
• ?????
• ??????AOS Space Data Link Protocol
• ?????TC Space Data Link Protocol

16
TM/AOS Space Data Link Protocols

• ????????
• ???????????????????????
• ???????????????????????
• Virtual Channels
• ?????????????????????Virtual Channel?????
• ?????????????????

VC 0
????
VC 1
????
VC 2
????
????
????????????
17
TC Space Data Link Protocol

• ????????
• ?????????????????????????
• ???????????????????????
• ????????????????????????????
• Virtual Channels
• TM/AOS Data Link Protocols????????????????????(VC?
  ????)?
• Multiplexer Access Points (MAPs)
• ??????????????????????????????????????????????????
  ?????????????????????????
• ????

18
Virtual Channel???
Urgent Packet
Non-urgent Packet
Transfer Frame of VC0 Priority Channel
Transfer Frame of VC1 Normal Channel
Transfer Frame of VC1 Normal Channel
Urgent Packet
Non-urgent Packet
Non-urgent Packet
19
??????? (AOS, 1)
20
??????? (AOS, 2)
21
??????? (TC)
22
???????????
23
?????????(??)
??
????????
?? ??
?? ??
?? ??
??? ??
?? ??
?????
??????
???
???
???????????
???????????
???
24
?????????
?????????????
?????
?? ??
??? ??
?? ??
?? ??
?? ??

• ?????????????????????????????????????????(????)???
  ????(???SDTP)?????????

25
???????
?????
?? ??
???? ??? (SIB)
??? ??
?? ??
?? ??
?? ??

• ????????????????????????????????????

26
Space Data Transfer Protocol (1)

• ????????????????????????
• ?????????????????????????????????(C???B????????)??
  ????
• ?A????????X???APIDN????????????
• ?????
• ????(????)
• ?????(?????????)
• ????????
• ????????
• ???????????
• ??????????

27
Space Data Transfer Protocol (2)

• ????????????????????(??????????)
• ??????????A??????X???APIDN????????????
• Space Link Extension (SLE)????????
• SLE?SDTP????????CCSDS??????????
• SLE?SDTP????????(?????????)???????NASA/DSN,
  JAXA?GN?Svalbard??SDTP?????????

28
?????????

• ???????
• ??????????????????????SDTP??????????
• ???????????????????????????????
• ???????
• ?????????????
• ?????????FTP???????????????
• ??????????SDTP????????????????????????
• ???????????????????????

29
???????

• ????????????
• ???????SDTP?????????SDTP??????????????????????????
  ?????????
• ????????????
• ????SDTP??????????????(?????????????????)?????????
  ??????????????????
• ??????
• ????????????????????????????

30
???????(SOLAR-B????1)
H-2/ISDN (S-band)
JAXATACC
USC34/20
New GN
SLE/ISDN (S-band)
SDTP/Dedicated Circuit
SLE/ISDN (S-band)
ISASSSOC
FTP/Internet (X-band tlm only)
SVL
Spacecraft is controlled here
NASCOM/IONET(S-band Tlm only)
FTP/Internet(S-band Tlm only)
NASAMSFC
WPS/AGOUC
31
???????(SOLAR-B????2)
S/C Control
USC34/20
SDTP
SDTP
SDTP and Mirroring
SDTP
JAXA/TACC
SLE/ISDN
SDTP
SLE Gateway
Data Dst/Str
SLE/ISDN
SDTP
SVL
SDTP and Mirroring
FTP/Internet
File Relay
SCP
FireWall
Data Dst/Str
FTP/Internet
File to SDTP
NASA/MSFC
SDTP
ISAS/USC
SDTP
ISAS/SSOC
32
???????(SOLAR-B??????1)
H-2/ISDN (S-band)
JAXATACC
USC34/20
New GN
SLE/ISDN (S-band)
SDTP/LAN
SDTP/Dedicated Circuit
SLE/ISDN (S-band)
ISASSSOC
ISASUSC
FTP/Internet (X-band tlm only)
SVL
Mirroring/Dedicated Circuit
NASCOM/IONET(S-band Tlm only)
Spacecraft is controlled here
FTP/Internet(S-band Tlm only)
NASAMSFC
WPS/AGOUC
33
???????(SOLAR-B??????2)
USC34/20
SDTP
SDTP
SDTP and Mirroring
JAXA/TACC
SLE/ISDN
SDTP
SLE Gateway
Data Dst/Str
SLE/ISDN
SDTP
SVL
SDTP and Mirroring
SDTP
FTP/Internet
File Relay
SCP
S/C Control
FireWall
Data Dst/Str
FTP/Internet
File to SDTP
NASA/MSFC
SDTP
ISAS/USC
SDTP
ISAS/SSOC
34
??????

• CCSDS??????/??????
• ??????????????????????/????????
• ???????????????????
• ???????????????
• ???????????????????????????
• ???????????????????
• ???????????????????????????

35

• ???????????????
• ????