Rinda in the real-world embedded systems.

RubyKaigi takeout 2020

Transcript

1. Rinda
   in the real-world embedded systems.
   seki@ruby-lang.org
   

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2. About Me
   @m_seki
   My works
   Ruby committer
   2
   

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3. First printing from 2005 (Still available)
   dRuby
   ʹΑΔ
   ؔকढ़ஶ
   ෼ࢄ
   ɾ
   Web
   ϓϩάϥϛϯά
   

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4. Become out of print in 2014
   

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5. 2017 re-published on the web
   

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6. 2020 dRubyͰָ͠Ή෼ࢄΦϒδΣΫτ
   n-monthly Lambda Note Vol.2 No.1
   

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7. Ruby Committer
   ERB, dRuby, Rinda
   7
   

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8. Linda and Rinda
   Linda: coordination language
   tuple space
   Rinda as Ruby Linda
   8
   

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9. process, tuple, tuple space
   process
   9
   

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10. process, tuple, tuple space
    tuple
    10
    

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11. process, tuple, tuple space
    tuple space
    11
    

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12. How to write Parallel Programs
    12
    

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13. Embedded systems
    Report embedded systems using rinda
    not ERB (embedded ruby)
    13
    

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14. OAOWFC
    Okayama Astrophysical Observatory Wide-Field Camera
    Publications of the Astronomical Society of Japan, Volume 71, Issue 6,
    December 2019, 118, https://doi.org/10.1093/pasj/psz117
    ୈ5ճ Մࢹ੺֎ઢ؍ଌ૷ஔٕज़ϫʔΫγϣοϓ 2015೥12݄
    ʮԬࢁఱମ෺ཧ؍ଌॴ޿ࢹ໺੺֎Χϝϥͷ੡࡞ʯ༄ᖒɹ
    ݦ࢙ʢࠃཱఱจ୆ʣ https://www.astr.tohoku.ac.jp/~akiyama/
    astroinst2015/20151207_yanagisawa.pdf
    14
    

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15. ϩϘοτ๬ԕڸʁ
    robot telescope?
    
    15
    

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16. OAOWFC
    20151207_yanagisawa.pdf ΑΓ
    OAOWFC
    Okayama Astrophysical Observatory Wide Field Camera
    2015/12/07 奛㷔塭伖㈨埻WS 7
    16
    

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17. f/2.5
    20151207_yanagisawa.pdf ΑΓ
    2/07 奛㷔塭伖㈨埻WS 16
    17
    

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18. renewal of the existing classical Cassegrain telescope
    20151207_yanagisawa.pdf ΑΓ
    The OAO 0.9m Telescope before renewal
    ͻ Manufacturer : NIKON (present)
    ͻ Completion: 1959
    ͻ Mount : Fork Equatorial
    ͻ Slew Speed: 1.5 deg / sec
    ͻ Manufacturer : IHI
    ͻ Completion: 1959
    ͻ Rotation Speed: 3.0 deg / sec
    2015/12/07 奛㷔塭伖㈨埻WS 11
    18
    

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19. renewal of the existing classical Cassegrain telescope
    20151207_yanagisawa.pdf ΑΓ
    The OAO 0.9m Telescope before renewal
    ͻ Manufacturer : NIKON (present)
    ͻ Completion: 1959
    ͻ Mount : Fork Equatorial
    ͻ Slew Speed: 1.5 deg / sec
    ͻ Manufacturer : IHI
    ͻ Completion: 1959
    ͻ Rotation Speed: 3.0 deg / sec
    2015/12/07 奛㷔塭伖㈨埻WS 11
    19
    

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20. primary pupose
    20151207_yanagisawa.pdf ΑΓ
    2015/12/07 奛㷔塭伖㈨埻WS 34
    ྂ඾ⓗ䝉䝣䜯䜲䝗ೃ⿵䛾఩⨨
    DDO Cepheid DB
    OAOWFC
    20
    

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21. OAOWFC
    20151207_yanagisawa.pdf ΑΓ
    21
    

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22. autonomous
    weather monitor
    auto focus
    cooperative operation
    22
    

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23. 20151207_yanagisawa.pdf ΑΓ
    23
    

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24. auto focus
    tube length monitor
    20151207_yanagisawa.pdf ΑΓ
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    24
    

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25. hardware block diagram
    psz117
    Publications of the Astronomical Society of Japan (2019), Vol. 71, No. 6 118-9
    Fig. 7. Hardware block diagram of OAOWFC, which consists of 15 subsystems with communication capabilities; rounded rectangles with light-gray
    background show the subsystems, and strings at the upper-left corner describe their role. The structure is composed of three columns: network-
    attached PC/appliance, the controller, and the devices, arranged from left to right. TS stands for the terminal server, a Linux-based appliance used
    to convert messages from serial to TCP/IP or vice versa. PDU stands for the power distribution unit, arranged to restart a subsystem remotely if an
    Downloaded from https://academic.oup.com/pasj/article-abstract/71/6/118/5613951 by National As
    25
    

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26. hardware block diagram
    psz117
    Publications of the Astronomical Society of Japan (2019), Vol. 71, No. 6 118-9
    Fig. 7. Hardware block diagram of OAOWFC, which consists of 15 subsystems with communication capabilities; rounded rectangles with light-gray
    background show the subsystems, and strings at the upper-left corner describe their role. The structure is composed of three columns: network-
    attached PC/appliance, the controller, and the devices, arranged from left to right. TS stands for the terminal server, a Linux-based appliance used
    to convert messages from serial to TCP/IP or vice versa. PDU stands for the power distribution unit, arranged to restart a subsystem remotely if an
    Downloaded from https://academic.oup.com/pasj/article-abstract/71/6/118/5613951 by National As
    26
    

    View Slide

27. hardware block diagram
    psz117
    Publications of the Astronomical Society of Japan (2019), Vol. 71, No. 6 118-9
    Fig. 7. Hardware block diagram of OAOWFC, which consists of 15 subsystems with communication capabilities; rounded rectangles with light-gray
    background show the subsystems, and strings at the upper-left corner describe their role. The structure is composed of three columns: network-
    attached PC/appliance, the controller, and the devices, arranged from left to right. TS stands for the terminal server, a Linux-based appliance used
    to convert messages from serial to TCP/IP or vice versa. PDU stands for the power distribution unit, arranged to restart a subsystem remotely if an
    Downloaded from https://academic.oup.com/pasj/article-abstract/71/6/118/5613951 by National As
    27
    

    View Slide

28. hardware block diagram
    psz117
    Publications of the Astronomical Society of Japan (2019), Vol. 71, No. 6 118-9
    Fig. 7. Hardware block diagram of OAOWFC, which consists of 15 subsystems with communication capabilities; rounded rectangles with light-gray
    background show the subsystems, and strings at the upper-left corner describe their role. The structure is composed of three columns: network-
    attached PC/appliance, the controller, and the devices, arranged from left to right. TS stands for the terminal server, a Linux-based appliance used
    to convert messages from serial to TCP/IP or vice versa. PDU stands for the power distribution unit, arranged to restart a subsystem remotely if an
    Downloaded from https://academic.oup.com/pasj/article-abstract/71/6/118/5613951 by National As
    28
    

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29. software block diagram
    psz117
    29
    

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30. software block diagram
    psz117
    30
    

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31. software block diagram
    psz117
    31
    

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32. software block diagram
    psz117
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33. software block diagram
    psz117
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34. software block diagram
    psz117
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35. Rinda (again)
    write, read, take
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36. concern
    ނো΍௨৴ΤϥʔͰ΋͏·͍͘͘ʁ
    In the real world the device will fail
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37. design
    tuple with tiemout
    use notify instead of take
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38. weather monitor (again)
    weather monitor writes a Tsky tuple every minute.
    tuples live for 2 minutes
    Control daemon waits with notify()
    Normally, there are 1-2 Tsky tuples
    38
    

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39. Yanagisawa said.
    Proceedings of Symposium on Engineering in Astronomy 2017
    39
    

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40. Tochigi RubyKaigi 09
    2020-09-12
    ͖ͭͮ͸TochigiͰ
    40
    

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